diff options
| author |  Chris Xiong <chirs241097@gmail.com>
| 2015-10-06 21:28:40 +0800 |
|---|---|---|
| committer | Chris Xiong <chirs241097@gmail.com>
| 2015-10-06 21:28:40 +0800 |
| commit | 038b31f0158a0018dbf2eceb71026cc4e665faa9 (patch) | |
| tree | a373ddab7bc162e477e28a780b0d729660ff8634 /smelt/sdl/CxImage | |
| parent | a8077292d5d9118866f7358c11a90c855e1b1b02 (diff) | |
| download | SMELT-038b31f0158a0018dbf2eceb71026cc4e665faa9.tar.xz | |
Add the SMELT files...
Please, do not laugh too loudly.
Diffstat (limited to 'smelt/sdl/CxImage')
59 files changed, 28569 insertions, 0 deletions
diff --git a/smelt/sdl/CxImage/.directory b/smelt/sdl/CxImage/.directory new file mode 100644 index 0000000..8add095 --- /dev/null +++ b/smelt/sdl/CxImage/.directory @@ -0,0 +1,6 @@ +[Dolphin] +GroupedSorting=true +PreviewsShown=true +SortRole=type +Timestamp=2015,7,23,0,2,39 +Version=3 diff --git a/smelt/sdl/CxImage/license.txt b/smelt/sdl/CxImage/license.txt new file mode 100644 index 0000000..1ea1f04 --- /dev/null +++ b/smelt/sdl/CxImage/license.txt @@ -0,0 +1,48 @@ +This copy of the CxImage notices is provided for your convenience. In case of
+any discrepancy between this copy and the notices in the file ximage.h that is
+included in the CxImage distribution, the latter shall prevail.
+
+If you modify CxImage you may insert additional notices immediately following
+this sentence.
+
+--------------------------------------------------------------------------------
+
+COPYRIGHT NOTICE, DISCLAIMER, and LICENSE:
+
+CxImage version 7.0.0 31/Dec/2010
+
+CxImage : Copyright (C) 2001 - 2010, Davide Pizzolato
+
+Original CImage and CImageIterator implementation are:
+Copyright (C) 1995, Alejandro Aguilar Sierra (asierra(at)servidor(dot)unam(dot)mx)
+
+Covered code is provided under this license on an "as is" basis, without warranty
+of any kind, either expressed or implied, including, without limitation, warranties
+that the covered code is free of defects, merchantable, fit for a particular purpose
+or non-infringing. The entire risk as to the quality and performance of the covered
+code is with you. Should any covered code prove defective in any respect, you (not
+the initial developer or any other contributor) assume the cost of any necessary
+servicing, repair or correction. This disclaimer of warranty constitutes an essential
+part of this license. No use of any covered code is authorized hereunder except under
+this disclaimer.
+
+Permission is hereby granted to use, copy, modify, and distribute this
+source code, or portions hereof, for any purpose, including commercial applications,
+freely and without fee, subject to the following restrictions:
+
+1. The origin of this software must not be misrepresented; you must not
+claim that you wrote the original software. If you use this software
+in a product, an acknowledgment in the product documentation would be
+appreciated but is not required.
+
+2. Altered source versions must be plainly marked as such, and must not be
+misrepresented as being the original software.
+
+3. This notice may not be removed or altered from any source distribution.
+
+--------------------------------------------------------------------------------
+
+Other information: about CxImage, and the latest version, can be found at the
+CxImage home page: http://www.xdp.it
+
+--------------------------------------------------------------------------------
diff --git a/smelt/sdl/CxImage/stdint.h b/smelt/sdl/CxImage/stdint.h new file mode 100644 index 0000000..9379a63 --- /dev/null +++ b/smelt/sdl/CxImage/stdint.h @@ -0,0 +1,249 @@ +// ISO C9x compliant stdint.h for Microsoft Visual Studio +// Based on ISO/IEC 9899:TC2 Committee draft (May 6, 2005) WG14/N1124 +// +// Copyright (c) 2006-2008 Alexander Chemeris +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are met: +// +// 1. Redistributions of source code must retain the above copyright notice, +// this list of conditions and the following disclaimer. +// +// 2. Redistributions in binary form must reproduce the above copyright +// notice, this list of conditions and the following disclaimer in the +// documentation and/or other materials provided with the distribution. +// +// 3. The name of the author may be used to endorse or promote products +// derived from this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED +// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO +// EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, +// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; +// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, +// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR +// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF +// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +// +/////////////////////////////////////////////////////////////////////////////// + +#ifndef _MSC_VER // [ +//#error "Use this header only with Microsoft Visual C++ compilers!" +#endif // _MSC_VER ] + +#ifndef _MSC_STDINT_H_ // [ +#define _MSC_STDINT_H_ + +#if _MSC_VER > 1000 +#pragma once +#endif + +#include <limits.h> + +// For Visual Studio 6 in C++ mode and for many Visual Studio versions when +// compiling for ARM we should wrap <wchar.h> include with 'extern "C++" {}' +// or compiler give many errors like this: +// error C2733: second C linkage of overloaded function 'wmemchr' not allowed +/* +#ifdef __cplusplus +extern "C" { +#endif +# include <wchar.h> +#ifdef __cplusplus +} +#endif +*/ + +// Define _W64 macros to mark types changing their size, like intptr_t. +#ifndef _W64 +# if !defined(__midl) && (defined(_X86_) || defined(_M_IX86)) && _MSC_VER >= 1300 +# define _W64 __w64 +# else +# define _W64 +# endif +#endif + + +// 7.18.1 Integer types + +// 7.18.1.1 Exact-width integer types + +// Visual Studio 6 and Embedded Visual C++ 4 doesn't +// realize that, e.g. char has the same size as __int8 +// so we give up on __intX for them. +#if (_MSC_VER < 1300) + typedef signed char int8_t; + typedef signed short int16_t; + typedef signed int int32_t; + typedef unsigned char uint8_t; + typedef unsigned short uint16_t; + typedef unsigned int uint32_t; +#else + typedef signed __int8 int8_t; + typedef signed __int16 int16_t; + typedef signed __int32 int32_t; + typedef unsigned __int8 uint8_t; + typedef unsigned __int16 uint16_t; + typedef unsigned __int32 uint32_t; +#endif +typedef signed __int64 int64_t; +typedef unsigned __int64 uint64_t; + + +// 7.18.1.2 Minimum-width integer types +typedef int8_t int_least8_t; +typedef int16_t int_least16_t; +typedef int32_t int_least32_t; +typedef int64_t int_least64_t; +typedef uint8_t uint_least8_t; +typedef uint16_t uint_least16_t; +typedef uint32_t uint_least32_t; +typedef uint64_t uint_least64_t; + +// 7.18.1.3 Fastest minimum-width integer types +typedef int8_t int_fast8_t; +typedef int16_t int_fast16_t; +typedef int32_t int_fast32_t; +typedef int64_t int_fast64_t; +typedef uint8_t uint_fast8_t; +typedef uint16_t uint_fast16_t; +typedef uint32_t uint_fast32_t; +typedef uint64_t uint_fast64_t; + +// 7.18.1.4 Integer types capable of holding object pointers +#ifdef _WIN64 // [ + typedef signed __int64 intptr_t; + typedef unsigned __int64 uintptr_t; +#else // _WIN64 ][ + typedef _W64 signed int intptr_t; + typedef _W64 unsigned int uintptr_t; +#endif // _WIN64 ] + +// 7.18.1.5 Greatest-width integer types +typedef int64_t intmax_t; +typedef uint64_t uintmax_t; + + +// 7.18.2 Limits of specified-width integer types + +#if !defined(__cplusplus) || defined(__STDC_LIMIT_MACROS) // [ See footnote 220 at page 257 and footnote 221 at page 259 + +// 7.18.2.1 Limits of exact-width integer types +#define INT8_MIN ((int8_t)_I8_MIN) +#define INT8_MAX _I8_MAX +#define INT16_MIN ((int16_t)_I16_MIN) +#define INT16_MAX _I16_MAX +#define INT32_MIN ((int32_t)_I32_MIN) +#define INT32_MAX _I32_MAX +#define INT64_MIN ((int64_t)_I64_MIN) +#define INT64_MAX _I64_MAX +#define UINT8_MAX _UI8_MAX +#define UINT16_MAX _UI16_MAX +#define UINT32_MAX _UI32_MAX +#define UINT64_MAX _UI64_MAX + +// 7.18.2.2 Limits of minimum-width integer types +#define INT_LEAST8_MIN INT8_MIN +#define INT_LEAST8_MAX INT8_MAX +#define INT_LEAST16_MIN INT16_MIN +#define INT_LEAST16_MAX INT16_MAX +#define INT_LEAST32_MIN INT32_MIN +#define INT_LEAST32_MAX INT32_MAX +#define INT_LEAST64_MIN INT64_MIN +#define INT_LEAST64_MAX INT64_MAX +#define UINT_LEAST8_MAX UINT8_MAX +#define UINT_LEAST16_MAX UINT16_MAX +#define UINT_LEAST32_MAX UINT32_MAX +#define UINT_LEAST64_MAX UINT64_MAX + +// 7.18.2.3 Limits of fastest minimum-width integer types +#define INT_FAST8_MIN INT8_MIN +#define INT_FAST8_MAX INT8_MAX +#define INT_FAST16_MIN INT16_MIN +#define INT_FAST16_MAX INT16_MAX +#define INT_FAST32_MIN INT32_MIN +#define INT_FAST32_MAX INT32_MAX +#define INT_FAST64_MIN INT64_MIN +#define INT_FAST64_MAX INT64_MAX +#define UINT_FAST8_MAX UINT8_MAX +#define UINT_FAST16_MAX UINT16_MAX +#define UINT_FAST32_MAX UINT32_MAX +#define UINT_FAST64_MAX UINT64_MAX + +// 7.18.2.4 Limits of integer types capable of holding object pointers +#ifdef _WIN64 // [ +# define INTPTR_MIN INT64_MIN +# define INTPTR_MAX INT64_MAX +# define UINTPTR_MAX UINT64_MAX +#else // _WIN64 ][ +# define INTPTR_MIN INT32_MIN +# define INTPTR_MAX INT32_MAX +# define UINTPTR_MAX UINT32_MAX +#endif // _WIN64 ] + +// 7.18.2.5 Limits of greatest-width integer types +#define INTMAX_MIN INT64_MIN +#define INTMAX_MAX INT64_MAX +#define UINTMAX_MAX UINT64_MAX + +// 7.18.3 Limits of other integer types + +#ifdef _WIN64 // [ +# define PTRDIFF_MIN _I64_MIN +# define PTRDIFF_MAX _I64_MAX +#else // _WIN64 ][ +# define PTRDIFF_MIN _I32_MIN +# define PTRDIFF_MAX _I32_MAX +#endif // _WIN64 ] + +#define SIG_ATOMIC_MIN INT_MIN +#define SIG_ATOMIC_MAX INT_MAX + +#ifndef SIZE_MAX // [ +# ifdef _WIN64 // [ +# define SIZE_MAX _UI64_MAX +# else // _WIN64 ][ +# define SIZE_MAX _UI32_MAX +# endif // _WIN64 ] +#endif // SIZE_MAX ] + +// WCHAR_MIN and WCHAR_MAX are also defined in <wchar.h> +#ifndef WCHAR_MIN // [ +# define WCHAR_MIN 0 +#endif // WCHAR_MIN ] +#ifndef WCHAR_MAX // [ +# define WCHAR_MAX _UI16_MAX +#endif // WCHAR_MAX ] + +#define WINT_MIN 0 +#define WINT_MAX _UI16_MAX + +#endif // __STDC_LIMIT_MACROS ] + + +// 7.18.4 Limits of other integer types + +#if !defined(__cplusplus) || defined(__STDC_CONSTANT_MACROS) // [ See footnote 224 at page 260 + +// 7.18.4.1 Macros for minimum-width integer constants + +#define INT8_C(val) val##i8 +#define INT16_C(val) val##i16 +#define INT32_C(val) val##i32 +#define INT64_C(val) val##i64 + +#define UINT8_C(val) val##ui8 +#define UINT16_C(val) val##ui16 +#define UINT32_C(val) val##ui32 +#define UINT64_C(val) val##ui64 + +// 7.18.4.2 Macros for greatest-width integer constants +#define INTMAX_C INT64_C +#define UINTMAX_C UINT64_C + +#endif // __STDC_CONSTANT_MACROS ] + + +#endif // _MSC_STDINT_H_ ] diff --git a/smelt/sdl/CxImage/tif_xfile.cpp b/smelt/sdl/CxImage/tif_xfile.cpp new file mode 100644 index 0000000..4d1d79a --- /dev/null +++ b/smelt/sdl/CxImage/tif_xfile.cpp @@ -0,0 +1,221 @@ +/*
+ * TIFF file IO, using CxFile.
+ */
+
+#ifdef WIN32
+ #include <windows.h>
+#endif
+#include <stdio.h>
+
+#include "ximage.h"
+
+#if CXIMAGE_SUPPORT_TIF
+
+#include "../tiff/tiffiop.h"
+#include "../tiff/tiffvers.h"
+
+#include "xfile.h"
+
+static tsize_t
+_tiffReadProcEx(thandle_t fd, tdata_t buf, tsize_t size)
+{
+ return (tsize_t)((CxFile*)fd)->Read(buf, 1, size);
+}
+
+static tsize_t
+_tiffWriteProcEx(thandle_t fd, tdata_t buf, tsize_t size)
+{
+ return (tsize_t)((CxFile*)fd)->Write(buf, 1, size);
+}
+
+static toff_t
+_tiffSeekProcEx(thandle_t fd, toff_t off, int whence)
+{
+ if ( off == 0xFFFFFFFF )
+ return 0xFFFFFFFF;
+ if (!((CxFile*)fd)->Seek(off, whence))
+ return 0xFFFFFFFF;
+ if (whence == SEEK_SET)
+ return off;
+
+ return (toff_t)((CxFile*)fd)->Tell();
+}
+
+// Return nonzero if error
+static int
+_tiffCloseProcEx(thandle_t /*fd*/)
+{
+// return !((CxFile*)fd)->Close(); // "//" needed for memory files <DP>
+ return 0;
+}
+
+#include <sys/stat.h>
+
+static toff_t
+_tiffSizeProcEx(thandle_t fd)
+{
+ return ((CxFile*)fd)->Size();
+}
+
+static int
+_tiffMapProcEx(thandle_t /*fd*/, tdata_t* /*pbase*/, toff_t* /*psize*/)
+{
+ return (0);
+}
+
+static void
+_tiffUnmapProcEx(thandle_t /*fd*/, tdata_t /*base*/, toff_t /*size*/)
+{
+}
+
+// Open a TIFF file descriptor for read/writing.
+/*
+TIFF*
+TIFFOpen(const char* name, const char* mode)
+{
+ static const char module[] = "TIFFOpen";
+ FILE* stream = fopen(name, mode);
+ if (stream == NULL)
+ {
+ TIFFError(module, "%s: Cannot open", name);
+ return NULL;
+ }
+ return (TIFFFdOpen((int)stream, name, mode));
+}
+*/
+
+TIFF*
+_TIFFFdOpen(void* fd, const char* name, const char* mode)
+{
+ TIFF* tif;
+
+ tif = TIFFClientOpen(name, mode,
+ (thandle_t) fd,
+ _tiffReadProcEx, _tiffWriteProcEx, _tiffSeekProcEx, _tiffCloseProcEx,
+ _tiffSizeProcEx, _tiffMapProcEx, _tiffUnmapProcEx);
+ if (tif)
+ {
+ tif->tif_fd = (int)fd;
+ }
+ return (tif);
+}
+
+extern "C" TIFF* _TIFFOpenEx(CxFile* stream, const char* mode)
+{
+ return (_TIFFFdOpen(stream, "TIFF IMAGE", mode));
+}
+
+#ifdef __GNUC__
+extern char* malloc();
+extern char* realloc();
+#else
+#include <malloc.h>
+#endif
+
+tdata_t
+_TIFFmalloc(tsize_t s)
+{
+ return (malloc((size_t) s));
+}
+
+void
+_TIFFfree(tdata_t p)
+{
+ free(p);
+}
+
+tdata_t
+_TIFFrealloc(tdata_t p, tsize_t s)
+{
+ return (realloc(p, (size_t) s));
+}
+
+void
+_TIFFmemset(tdata_t p, int v, tsize_t c)
+{
+ memset(p, v, (size_t) c);
+}
+
+void
+_TIFFmemcpy(tdata_t d, const tdata_t s, tsize_t c)
+{
+ memcpy(d, s, (size_t) c);
+}
+
+int
+_TIFFmemcmp(const tdata_t p1, const tdata_t p2, tsize_t c)
+{
+ return (memcmp(p1, p2, (size_t) c));
+}
+
+#ifndef UNICODE
+#define DbgPrint wvsprintf
+#define DbgPrint2 wsprintf
+#define DbgMsgBox MessageBox
+#else
+#define DbgPrint wvsprintfA
+#define DbgPrint2 wsprintfA
+#define DbgMsgBox MessageBoxA
+#endif
+
+static void
+Win32WarningHandler(const char* module, const char* fmt, va_list ap)
+{
+#ifdef _DEBUG
+#if (!defined(_CONSOLE) && !defined(_WIN32_WCE) && defined(WIN32))
+ LPSTR szTitle;
+ LPSTR szTmp;
+ LPCSTR szTitleText = "%s Warning";
+ LPCSTR szDefaultModule = "TIFFLIB";
+ szTmp = (module == NULL) ? (LPSTR)szDefaultModule : (LPSTR)module;
+ if ((szTitle = (LPSTR)LocalAlloc(LMEM_FIXED, (strlen(szTmp) +
+ strlen(szTitleText) + strlen(fmt) + 128))) == NULL)
+ return;
+ DbgPrint2(szTitle, szTitleText, szTmp);
+ szTmp = szTitle + (strlen(szTitle)+2);
+ DbgPrint(szTmp, fmt, ap);
+ DbgMsgBox(GetFocus(), szTmp, szTitle, MB_OK | MB_ICONINFORMATION);
+ LocalFree(szTitle);
+ return;
+#else
+ if (module != NULL)
+ fprintf(stderr, "%s: ", module);
+ fprintf(stderr, "Warning, ");
+ vfprintf(stderr, fmt, ap);
+ fprintf(stderr, ".\n");
+#endif
+#endif
+}
+TIFFErrorHandler _TIFFwarningHandler = Win32WarningHandler;
+
+static void
+Win32ErrorHandler(const char* module, const char* fmt, va_list ap)
+{
+#ifdef _DEBUG
+#if (!defined(_CONSOLE) && !defined(_WIN32_WCE) && defined(WIN32))
+ LPSTR szTitle;
+ LPSTR szTmp;
+ LPCSTR szTitleText = "%s Error";
+ LPCSTR szDefaultModule = "TIFFLIB";
+ szTmp = (module == NULL) ? (LPSTR)szDefaultModule : (LPSTR)module;
+ if ((szTitle = (LPSTR)LocalAlloc(LMEM_FIXED, (strlen(szTmp) +
+ strlen(szTitleText) + strlen(fmt) + 128))) == NULL)
+ return;
+ DbgPrint2(szTitle, szTitleText, szTmp);
+ szTmp = szTitle + (strlen(szTitle)+2);
+ DbgPrint(szTmp, fmt, ap);
+ DbgMsgBox(GetFocus(), szTmp, szTitle, MB_OK | MB_ICONEXCLAMATION);
+ LocalFree(szTitle);
+ return;
+#else
+ if (module != NULL)
+ fprintf(stderr, "%s: ", module);
+ vfprintf(stderr, fmt, ap);
+ fprintf(stderr, ".\n");
+#endif
+#endif
+}
+TIFFErrorHandler _TIFFerrorHandler = Win32ErrorHandler;
+
+#endif
+
diff --git a/smelt/sdl/CxImage/xfile.h b/smelt/sdl/CxImage/xfile.h new file mode 100644 index 0000000..6de281c --- /dev/null +++ b/smelt/sdl/CxImage/xfile.h @@ -0,0 +1,79 @@ +/*
+ * File: xfile.h
+ * Purpose: General Purpose File Class
+ */
+/*
+ --------------------------------------------------------------------------------
+
+ COPYRIGHT NOTICE, DISCLAIMER, and LICENSE:
+
+ CxFile (c) 11/May/2002 Davide Pizzolato - www.xdp.it
+ CxFile version 2.00 23/Aug/2002
+ CxFile version 2.10 16/Dec/2007
+
+ Special thanks to Chris Shearer Cooper for new features, enhancements and bugfixes
+
+ Covered code is provided under this license on an "as is" basis, without warranty
+ of any kind, either expressed or implied, including, without limitation, warranties
+ that the covered code is free of defects, merchantable, fit for a particular purpose
+ or non-infringing. The entire risk as to the quality and performance of the covered
+ code is with you. Should any covered code prove defective in any respect, you (not
+ the initial developer or any other contributor) assume the cost of any necessary
+ servicing, repair or correction. This disclaimer of warranty constitutes an essential
+ part of this license. No use of any covered code is authorized hereunder except under
+ this disclaimer.
+
+ Permission is hereby granted to use, copy, modify, and distribute this
+ source code, or portions hereof, for any purpose, including commercial applications,
+ freely and without fee, subject to the following restrictions:
+
+ 1. The origin of this software must not be misrepresented; you must not
+ claim that you wrote the original software. If you use this software
+ in a product, an acknowledgment in the product documentation would be
+ appreciated but is not required.
+
+ 2. Altered source versions must be plainly marked as such, and must not be
+ misrepresented as being the original software.
+
+ 3. This notice may not be removed or altered from any source distribution.
+ --------------------------------------------------------------------------------
+ */
+#if !defined(__xfile_h)
+#define __xfile_h
+
+#if defined (WIN32) || defined (_WIN32_WCE)
+ #include <windows.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "ximadef.h"
+
+class DLL_EXP CxFile
+{
+public:
+ CxFile(void) { };
+ virtual ~CxFile() { };
+
+ virtual bool Close() = 0;
+ virtual size_t Read(void *buffer, size_t size, size_t count) = 0;
+ virtual size_t Write(const void *buffer, size_t size, size_t count) = 0;
+ virtual bool Seek(int32_t offset, int32_t origin) = 0;
+ virtual int32_t Tell() = 0;
+ virtual int32_t Size() = 0;
+ virtual bool Flush() = 0;
+ virtual bool Eof() = 0;
+ virtual int32_t Error() = 0;
+ virtual bool PutC(uint8_t c)
+ {
+ // Default implementation
+ size_t nWrote = Write(&c, 1, 1);
+ return (bool)(nWrote == 1);
+ }
+ virtual int32_t GetC() = 0;
+ virtual char * GetS(char *string, int32_t n) = 0;
+ virtual int32_t Scanf(const char *format, void* output) = 0;
+};
+
+#endif //__xfile_h
diff --git a/smelt/sdl/CxImage/ximabmp.cpp b/smelt/sdl/CxImage/ximabmp.cpp new file mode 100644 index 0000000..c173c7d --- /dev/null +++ b/smelt/sdl/CxImage/ximabmp.cpp @@ -0,0 +1,448 @@ +/*
+ * File: ximabmp.cpp
+ * Purpose: Platform Independent BMP Image Class Loader and Writer
+ * 07/Aug/2001 Davide Pizzolato - www.xdp.it
+ * CxImage version 7.0.0 31/Dec/2010
+ */
+
+#include "ximabmp.h"
+
+#if CXIMAGE_SUPPORT_BMP
+
+#include "ximaiter.h"
+
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_SUPPORT_ENCODE
+////////////////////////////////////////////////////////////////////////////////
+bool CxImageBMP::Encode(CxFile * hFile)
+{
+
+ if (EncodeSafeCheck(hFile)) return false;
+
+ BITMAPFILEHEADER hdr;
+
+ hdr.bfType = 0x4d42; // 'BM' WINDOWS_BITMAP_SIGNATURE
+ hdr.bfSize = GetSize() + 14 /*sizeof(BITMAPFILEHEADER)*/;
+ hdr.bfReserved1 = hdr.bfReserved2 = 0;
+ hdr.bfOffBits = 14 /*sizeof(BITMAPFILEHEADER)*/ + head.biSize + GetPaletteSize();
+
+ hdr.bfType = m_ntohs(hdr.bfType);
+ hdr.bfSize = m_ntohl(hdr.bfSize);
+ hdr.bfOffBits = m_ntohl(hdr.bfOffBits);
+
+#if CXIMAGE_SUPPORT_ALPHA
+ if (GetNumColors()==0 && AlphaIsValid()){
+
+ BITMAPINFOHEADER infohdr;
+ memcpy(&infohdr,&head,sizeof(BITMAPINFOHEADER));
+ infohdr.biCompression = BI_RGB;
+ infohdr.biBitCount = 32;
+ uint32_t dwEffWidth = ((((infohdr.biBitCount * infohdr.biWidth) + 31) / 32) * 4);
+ infohdr.biSizeImage = dwEffWidth * infohdr.biHeight;
+
+ hdr.bfSize = infohdr.biSize + infohdr.biSizeImage + 14 /*sizeof(BITMAPFILEHEADER)*/;
+
+ hdr.bfSize = m_ntohl(hdr.bfSize);
+ bihtoh(&infohdr);
+
+ // Write the file header
+ hFile->Write(&hdr,min(14,sizeof(BITMAPFILEHEADER)),1);
+ hFile->Write(&infohdr,sizeof(BITMAPINFOHEADER),1);
+ //and DIB+ALPHA interlaced
+ uint8_t *srcalpha = AlphaGetPointer();
+ for(int32_t y = 0; y < infohdr.biHeight; ++y){
+ uint8_t *srcdib = GetBits(y);
+ for(int32_t x = 0; x < infohdr.biWidth; ++x){
+ hFile->Write(srcdib,3,1);
+ hFile->Write(srcalpha,1,1);
+ srcdib += 3;
+ ++srcalpha;
+ }
+ }
+
+ } else
+#endif //CXIMAGE_SUPPORT_ALPHA
+ {
+ // Write the file header
+ hFile->Write(&hdr,min(14,sizeof(BITMAPFILEHEADER)),1);
+ //copy attributes
+ memcpy(pDib,&head,sizeof(BITMAPINFOHEADER));
+ bihtoh((BITMAPINFOHEADER*)pDib);
+ // Write the DIB header and the pixels
+ hFile->Write(pDib,GetSize(),1);
+ bihtoh((BITMAPINFOHEADER*)pDib);
+ }
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+#endif //CXIMAGE_SUPPORT_ENCODE
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_SUPPORT_DECODE
+////////////////////////////////////////////////////////////////////////////////
+bool CxImageBMP::Decode(CxFile * hFile)
+{
+ if (hFile == NULL) return false;
+
+ BITMAPFILEHEADER bf;
+ uint32_t off = hFile->Tell(); //<CSC>
+ cx_try {
+ if (hFile->Read(&bf,min(14,sizeof(bf)),1)==0) cx_throw("Not a BMP");
+
+ bf.bfSize = m_ntohl(bf.bfSize);
+ bf.bfOffBits = m_ntohl(bf.bfOffBits);
+
+ if (m_ntohs(bf.bfType) != BFT_BITMAP) { //do we have a RC HEADER?
+ bf.bfOffBits = 0L;
+ hFile->Seek(off,SEEK_SET);
+ }
+
+ BITMAPINFOHEADER bmpHeader;
+ if (!DibReadBitmapInfo(hFile,&bmpHeader)); cx_throw("Error reading BMP info");
+ uint32_t dwCompression=bmpHeader.biCompression;
+ uint32_t dwBitCount=bmpHeader.biBitCount; //preserve for BI_BITFIELDS compression <Thomas Ernst>
+ bool bIsOldBmp = bmpHeader.biSize == sizeof(BITMAPCOREHEADER);
+
+ bool bTopDownDib = bmpHeader.biHeight<0; //<Flanders> check if it's a top-down bitmap
+ if (bTopDownDib) bmpHeader.biHeight=-bmpHeader.biHeight;
+
+ if (info.nEscape == -1) {
+ // Return output dimensions only
+ head.biWidth = bmpHeader.biWidth;
+ head.biHeight = bmpHeader.biHeight;
+ info.dwType = CXIMAGE_FORMAT_BMP;
+ cx_throw("output dimensions returned");
+ }
+
+ if (!Create(bmpHeader.biWidth,bmpHeader.biHeight,bmpHeader.biBitCount,CXIMAGE_FORMAT_BMP))
+ cx_throw("");
+
+ SetXDPI((int32_t) floor(bmpHeader.biXPelsPerMeter * 254.0 / 10000.0 + 0.5));
+ SetYDPI((int32_t) floor(bmpHeader.biYPelsPerMeter * 254.0 / 10000.0 + 0.5));
+
+ if (info.nEscape) cx_throw("Cancelled"); // <vho> - cancel decoding
+
+ RGBQUAD *pRgb = GetPalette();
+ if (pRgb){
+ if (bIsOldBmp){
+ // convert a old color table (3 byte entries) to a new
+ // color table (4 byte entries)
+ hFile->Read((void*)pRgb,DibNumColors(&bmpHeader) * sizeof(RGBTRIPLE),1);
+ for (int32_t i=DibNumColors(&head)-1; i>=0; i--){
+ pRgb[i].rgbRed = ((RGBTRIPLE *)pRgb)[i].rgbtRed;
+ pRgb[i].rgbBlue = ((RGBTRIPLE *)pRgb)[i].rgbtBlue;
+ pRgb[i].rgbGreen = ((RGBTRIPLE *)pRgb)[i].rgbtGreen;
+ pRgb[i].rgbReserved = (uint8_t)0;
+ }
+ } else {
+ hFile->Read((void*)pRgb,DibNumColors(&bmpHeader) * sizeof(RGBQUAD),1);
+ //force rgbReserved=0, to avoid problems with some WinXp bitmaps
+ for (uint32_t i=0; i<head.biClrUsed; i++) pRgb[i].rgbReserved=0;
+ }
+ }
+
+ if (info.nEscape) cx_throw("Cancelled"); // <vho> - cancel decoding
+
+ switch (dwBitCount) {
+ case 32 :
+ uint32_t bfmask[3];
+ if (dwCompression == BI_BITFIELDS)
+ {
+ hFile->Read(bfmask, 12, 1);
+ } else {
+ bfmask[0]=0x00FF0000;
+ bfmask[1]=0x0000FF00;
+ bfmask[2]=0x000000FF;
+ }
+ if (bf.bfOffBits != 0L) hFile->Seek(off + bf.bfOffBits,SEEK_SET);
+ if (dwCompression == BI_BITFIELDS || dwCompression == BI_RGB){
+ int32_t imagesize=4*head.biHeight*head.biWidth;
+ uint8_t* buff32=(uint8_t*)malloc(imagesize);
+ if (buff32){
+ hFile->Read(buff32, imagesize,1); // read in the pixels
+
+#if CXIMAGE_SUPPORT_ALPHA
+ if (dwCompression == BI_RGB){
+ AlphaCreate();
+ if (AlphaIsValid()){
+ bool bAlphaOk = false;
+ uint8_t* p;
+ for (int32_t y=0; y<head.biHeight; y++){
+ p = buff32 + 3 + head.biWidth * 4 * y;
+ for (int32_t x=0; x<head.biWidth; x++){
+ if (*p) bAlphaOk = true;
+ AlphaSet(x,y,*p);
+ p+=4;
+ }
+ }
+ // fix if alpha pixels are all zero
+ if (!bAlphaOk) AlphaInvert();
+ }
+ }
+#endif //CXIMAGE_SUPPORT_ALPHA
+
+ Bitfield2RGB(buff32,bfmask[0],bfmask[1],bfmask[2],32);
+ free(buff32);
+ } else cx_throw("can't allocate memory");
+ } else cx_throw("unknown compression");
+ break;
+ case 24 :
+ if (bf.bfOffBits != 0L) hFile->Seek(off + bf.bfOffBits,SEEK_SET);
+ if (dwCompression == BI_RGB){
+ hFile->Read(info.pImage, head.biSizeImage,1); // read in the pixels
+ } else cx_throw("unknown compression");
+ break;
+ case 16 :
+ {
+ uint32_t bfmask[3];
+ if (dwCompression == BI_BITFIELDS)
+ {
+ hFile->Read(bfmask, 12, 1);
+ } else {
+ bfmask[0]=0x7C00; bfmask[1]=0x3E0; bfmask[2]=0x1F; //RGB555
+ }
+ // bf.bfOffBits required after the bitfield mask <Cui Ying Jie>
+ if (bf.bfOffBits != 0L) hFile->Seek(off + bf.bfOffBits,SEEK_SET);
+ // read in the pixels
+ hFile->Read(info.pImage, head.biHeight*((head.biWidth+1)/2)*4,1);
+ // transform into RGB
+ Bitfield2RGB(info.pImage,bfmask[0],bfmask[1],bfmask[2],16);
+ break;
+ }
+ case 8 :
+ case 4 :
+ case 1 :
+ if (bf.bfOffBits != 0L) hFile->Seek(off + bf.bfOffBits,SEEK_SET);
+ switch (dwCompression) {
+ case BI_RGB :
+ hFile->Read(info.pImage, head.biSizeImage,1); // read in the pixels
+ break;
+ case BI_RLE4 :
+ {
+ uint8_t status_byte = 0;
+ uint8_t second_byte = 0;
+ int32_t scanline = 0;
+ int32_t bits = 0;
+ BOOL low_nibble = FALSE;
+ CImageIterator iter(this);
+
+ for (BOOL bContinue = TRUE; bContinue && hFile->Read(&status_byte, sizeof(uint8_t), 1);) {
+
+ switch (status_byte) {
+ case RLE_COMMAND :
+ hFile->Read(&status_byte, sizeof(uint8_t), 1);
+ switch (status_byte) {
+ case RLE_ENDOFLINE :
+ bits = 0;
+ scanline++;
+ low_nibble = FALSE;
+ break;
+ case RLE_ENDOFBITMAP :
+ bContinue=FALSE;
+ break;
+ case RLE_DELTA :
+ {
+ // read the delta values
+ uint8_t delta_x;
+ uint8_t delta_y;
+ hFile->Read(&delta_x, sizeof(uint8_t), 1);
+ hFile->Read(&delta_y, sizeof(uint8_t), 1);
+ // apply them
+ bits += delta_x / 2;
+ scanline += delta_y;
+ break;
+ }
+ default :
+ hFile->Read(&second_byte, sizeof(uint8_t), 1);
+ uint8_t *sline = iter.GetRow(scanline);
+ for (int32_t i = 0; i < status_byte; i++) {
+ if ((uint8_t*)(sline+bits) < (uint8_t*)(info.pImage+head.biSizeImage)){
+ if (low_nibble) {
+ if (i&1)
+ *(sline + bits) |= (second_byte & 0x0f);
+ else
+ *(sline + bits) |= (second_byte & 0xf0)>>4;
+ bits++;
+ } else {
+ if (i&1)
+ *(sline + bits) = (uint8_t)(second_byte & 0x0f)<<4;
+ else
+ *(sline + bits) = (uint8_t)(second_byte & 0xf0);
+ }
+ }
+
+ if ((i & 1) && (i != (status_byte - 1)))
+ hFile->Read(&second_byte, sizeof(uint8_t), 1);
+
+ low_nibble = !low_nibble;
+ }
+ if ((((status_byte+1) >> 1) & 1 ) == 1)
+ hFile->Read(&second_byte, sizeof(uint8_t), 1);
+ break;
+ };
+ break;
+ default :
+ {
+ uint8_t *sline = iter.GetRow(scanline);
+ hFile->Read(&second_byte, sizeof(uint8_t), 1);
+ for (unsigned i = 0; i < status_byte; i++) {
+ if ((uint8_t*)(sline+bits) < (uint8_t*)(info.pImage+head.biSizeImage)){
+ if (low_nibble) {
+ if (i&1)
+ *(sline + bits) |= (second_byte & 0x0f);
+ else
+ *(sline + bits) |= (second_byte & 0xf0)>>4;
+ bits++;
+ } else {
+ if (i&1)
+ *(sline + bits) = (uint8_t)(second_byte & 0x0f)<<4;
+ else
+ *(sline + bits) = (uint8_t)(second_byte & 0xf0);
+ }
+ }
+ low_nibble = !low_nibble;
+ }
+ }
+ break;
+ };
+ }
+ break;
+ }
+ case BI_RLE8 :
+ {
+ uint8_t status_byte = 0;
+ uint8_t second_byte = 0;
+ int32_t scanline = 0;
+ int32_t bits = 0;
+ CImageIterator iter(this);
+
+ for (BOOL bContinue = TRUE; bContinue && hFile->Read(&status_byte, sizeof(uint8_t), 1);) {
+ switch (status_byte) {
+ case RLE_COMMAND :
+ hFile->Read(&status_byte, sizeof(uint8_t), 1);
+ switch (status_byte) {
+ case RLE_ENDOFLINE :
+ bits = 0;
+ scanline++;
+ break;
+ case RLE_ENDOFBITMAP :
+ bContinue=FALSE;
+ break;
+ case RLE_DELTA :
+ {
+ // read the delta values
+ uint8_t delta_x;
+ uint8_t delta_y;
+ hFile->Read(&delta_x, sizeof(uint8_t), 1);
+ hFile->Read(&delta_y, sizeof(uint8_t), 1);
+ // apply them
+ bits += delta_x;
+ scanline += delta_y;
+ break;
+ }
+ default :
+ hFile->Read((void *)(iter.GetRow(scanline) + bits), sizeof(uint8_t) * status_byte, 1);
+ // align run length to even number of bytes
+ if ((status_byte & 1) == 1)
+ hFile->Read(&second_byte, sizeof(uint8_t), 1);
+ bits += status_byte;
+ break;
+ };
+ break;
+ default :
+ uint8_t *sline = iter.GetRow(scanline);
+ hFile->Read(&second_byte, sizeof(uint8_t), 1);
+ for (unsigned i = 0; i < status_byte; i++) {
+ if ((uint8_t*)(sline+bits) < (uint8_t*)(info.pImage+head.biSizeImage)){
+ *(sline + bits) = second_byte;
+ bits++;
+ } else {
+ break;
+ }
+ }
+ break;
+ };
+ }
+ break;
+ }
+ default :
+ cx_throw("compression type not supported");
+ }
+ }
+
+ if (bTopDownDib) Flip(); //<Flanders>
+
+ } cx_catch {
+ if (strcmp(message,"")) strncpy(info.szLastError,message,255);
+ if (info.nEscape == -1 && info.dwType == CXIMAGE_FORMAT_BMP) return true;
+ return false;
+ }
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/* ReadDibBitmapInfo()
+ *
+ * Will read a file in DIB format and return a global HANDLE to its
+ * BITMAPINFO. This function will work with both "old" and "new"
+ * bitmap formats, but will always return a "new" BITMAPINFO.
+ */
+bool CxImageBMP::DibReadBitmapInfo(CxFile* fh, BITMAPINFOHEADER *pdib)
+{
+ if ((fh==NULL)||(pdib==NULL)) return false;
+
+ if (fh->Read(pdib,sizeof(BITMAPINFOHEADER),1)==0) return false;
+
+ bihtoh(pdib);
+
+ switch (pdib->biSize) // what type of bitmap info is this?
+ {
+ case sizeof(BITMAPINFOHEADER):
+ break;
+
+ case 64: //sizeof(OS2_BMP_HEADER):
+ fh->Seek((int32_t)(64 - sizeof(BITMAPINFOHEADER)),SEEK_CUR);
+ break;
+
+ case 124: //sizeof(BITMAPV5HEADER):
+ fh->Seek((long)(124-sizeof(BITMAPINFOHEADER)), SEEK_CUR);
+ break;
+
+ case sizeof(BITMAPCOREHEADER):
+ {
+ BITMAPCOREHEADER bc = *(BITMAPCOREHEADER*)pdib;
+ pdib->biSize = bc.bcSize;
+ pdib->biWidth = (uint32_t)bc.bcWidth;
+ pdib->biHeight = (uint32_t)bc.bcHeight;
+ pdib->biPlanes = bc.bcPlanes;
+ pdib->biBitCount = bc.bcBitCount;
+ pdib->biCompression = BI_RGB;
+ pdib->biSizeImage = 0;
+ pdib->biXPelsPerMeter = 0;
+ pdib->biYPelsPerMeter = 0;
+ pdib->biClrUsed = 0;
+ pdib->biClrImportant = 0;
+
+ fh->Seek((int32_t)(sizeof(BITMAPCOREHEADER)-sizeof(BITMAPINFOHEADER)), SEEK_CUR);
+ }
+ break;
+ default:
+ //give a last chance
+ if (pdib->biSize>(sizeof(BITMAPINFOHEADER))&&
+ (pdib->biSizeImage>=(uint32_t)(pdib->biHeight*((((pdib->biBitCount*pdib->biWidth)+31)/32)*4)))&&
+ (pdib->biPlanes==1)&&(pdib->biClrUsed==0))
+ {
+ if (pdib->biCompression==BI_RGB)
+ fh->Seek((int32_t)(pdib->biSize - sizeof(BITMAPINFOHEADER)),SEEK_CUR);
+ break;
+ }
+ return false;
+ }
+
+ FixBitmapInfo(pdib);
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+#endif //CXIMAGE_SUPPORT_DECODE
+////////////////////////////////////////////////////////////////////////////////
+#endif // CXIMAGE_SUPPORT_BMP
+////////////////////////////////////////////////////////////////////////////////
diff --git a/smelt/sdl/CxImage/ximabmp.h b/smelt/sdl/CxImage/ximabmp.h new file mode 100644 index 0000000..c828de5 --- /dev/null +++ b/smelt/sdl/CxImage/ximabmp.h @@ -0,0 +1,79 @@ +/*
+ * File: ximabmp.h
+ * Purpose: BMP Image Class Loader and Writer
+ */
+/* ==========================================================
+ * CxImageBMP (c) 07/Aug/2001 Davide Pizzolato - www.xdp.it
+ * For conditions of distribution and use, see copyright notice in ximage.h
+ *
+ * Special thanks to Troels Knakkergaard for new features, enhancements and bugfixes
+ *
+ * original CImageBMP and CImageIterator implementation are:
+ * Copyright: (c) 1995, Alejandro Aguilar Sierra <asierra(at)servidor(dot)unam(dot)mx>
+ *
+ * ==========================================================
+ */
+
+#if !defined(__ximaBMP_h)
+#define __ximaBMP_h
+
+#include "ximage.h"
+
+const int32_t RLE_COMMAND = 0;
+const int32_t RLE_ENDOFLINE = 0;
+const int32_t RLE_ENDOFBITMAP = 1;
+const int32_t RLE_DELTA = 2;
+
+#if !defined(BI_RLE8)
+ #define BI_RLE8 1L
+#endif
+#if !defined(BI_RLE4)
+ #define BI_RLE4 2L
+#endif
+
+#if CXIMAGE_SUPPORT_BMP
+
+class CxImageBMP: public CxImage
+{
+public:
+ CxImageBMP(): CxImage(CXIMAGE_FORMAT_BMP) {};
+
+ bool Decode(CxFile * hFile);
+ bool Decode(FILE *hFile) { CxIOFile file(hFile); return Decode(&file); }
+
+#if CXIMAGE_SUPPORT_ENCODE
+ bool Encode(CxFile * hFile);
+ bool Encode(FILE *hFile) { CxIOFile file(hFile); return Encode(&file); }
+#endif // CXIMAGE_SUPPORT_ENCODE
+
+protected:
+ bool DibReadBitmapInfo(CxFile* fh, BITMAPINFOHEADER *pdib);
+};
+
+#define BFT_ICON 0x4349 /* 'IC' */
+#define BFT_BITMAP 0x4d42 /* 'BM' */
+#define BFT_CURSOR 0x5450 /* 'PT' */
+
+#ifndef WIDTHBYTES
+#define WIDTHBYTES(i) ((unsigned)((i+31)&(~31))/8) /* ULONG aligned ! */
+#endif
+
+#endif
+
+#define DibWidthBytesN(lpbi, n) (uint32_t)WIDTHBYTES((uint32_t)(lpbi)->biWidth * (uint32_t)(n))
+#define DibWidthBytes(lpbi) DibWidthBytesN(lpbi, (lpbi)->biBitCount)
+
+#define DibSizeImage(lpbi) ((lpbi)->biSizeImage == 0 \
+ ? ((uint32_t)(uint32_t)DibWidthBytes(lpbi) * (uint32_t)(uint32_t)(lpbi)->biHeight) \
+ : (lpbi)->biSizeImage)
+
+#define DibNumColors(lpbi) ((lpbi)->biClrUsed == 0 && (lpbi)->biBitCount <= 8 \
+ ? (int32_t)(1 << (int32_t)(lpbi)->biBitCount) \
+ : (int32_t)(lpbi)->biClrUsed)
+
+#define FixBitmapInfo(lpbi) if ((lpbi)->biSizeImage == 0) \
+ (lpbi)->biSizeImage = DibSizeImage(lpbi); \
+ if ((lpbi)->biClrUsed == 0) \
+ (lpbi)->biClrUsed = DibNumColors(lpbi); \
+
+#endif
diff --git a/smelt/sdl/CxImage/ximacfg.h b/smelt/sdl/CxImage/ximacfg.h new file mode 100644 index 0000000..875f517 --- /dev/null +++ b/smelt/sdl/CxImage/ximacfg.h @@ -0,0 +1,59 @@ +#if !defined(__ximaCFG_h)
+#define __ximaCFG_h
+
+/////////////////////////////////////////////////////////////////////////////
+// CxImage supported features
+#define CXIMAGE_SUPPORT_ALPHA 1
+#define CXIMAGE_SUPPORT_SELECTION 0
+#define CXIMAGE_SUPPORT_TRANSFORMATION 1
+#define CXIMAGE_SUPPORT_DSP 0
+#define CXIMAGE_SUPPORT_LAYERS 0
+#define CXIMAGE_SUPPORT_INTERPOLATION 1
+
+#define CXIMAGE_SUPPORT_DECODE 1
+#define CXIMAGE_SUPPORT_ENCODE 0 //<vho><T.Peck>
+#define CXIMAGE_SUPPORT_WINDOWS 0
+#define CXIMAGE_SUPPORT_EXIF 0
+
+/////////////////////////////////////////////////////////////////////////////
+// CxImage supported formats
+#define CXIMAGE_SUPPORT_BMP 1
+#define CXIMAGE_SUPPORT_GIF 1
+#define CXIMAGE_SUPPORT_JPG 1
+#define CXIMAGE_SUPPORT_PNG 1
+#define CXIMAGE_SUPPORT_ICO 0
+#define CXIMAGE_SUPPORT_TIF 0
+#define CXIMAGE_SUPPORT_TGA 0
+#define CXIMAGE_SUPPORT_PCX 1
+#define CXIMAGE_SUPPORT_WBMP 0
+#define CXIMAGE_SUPPORT_WMF 0
+
+#define CXIMAGE_SUPPORT_JP2 0
+#define CXIMAGE_SUPPORT_JPC 0
+#define CXIMAGE_SUPPORT_PGX 0
+#define CXIMAGE_SUPPORT_PNM 0
+#define CXIMAGE_SUPPORT_RAS 0
+
+#define CXIMAGE_SUPPORT_JBG 0 // GPL'd see ../jbig/copying.txt & ../jbig/patents.htm
+
+#define CXIMAGE_SUPPORT_MNG 0
+#define CXIMAGE_SUPPORT_SKA 0
+#define CXIMAGE_SUPPORT_RAW 0
+#define CXIMAGE_SUPPORT_PSD 0
+
+/////////////////////////////////////////////////////////////////////////////
+#define CXIMAGE_MAX_MEMORY 268435456
+
+#define CXIMAGE_DEFAULT_DPI 96
+
+#define CXIMAGE_ERR_NOFILE "null file handler"
+#define CXIMAGE_ERR_NOIMAGE "null image!!!"
+
+//#define CXIMAGE_SUPPORT_EXCEPTION_HANDLING 1
+//!!Uncomment the last line when releasing
+/////////////////////////////////////////////////////////////////////////////
+//color to grey mapping <H. Muelner> <jurgene>
+//#define RGB2GRAY(r,g,b) (((b)*114 + (g)*587 + (r)*299)/1000)
+#define RGB2GRAY(r,g,b) (((b)*117 + (g)*601 + (r)*306) >> 10)
+
+#endif
diff --git a/smelt/sdl/CxImage/ximadef.h b/smelt/sdl/CxImage/ximadef.h new file mode 100644 index 0000000..372ec13 --- /dev/null +++ b/smelt/sdl/CxImage/ximadef.h @@ -0,0 +1,205 @@ +#if !defined(__ximadefs_h)
+#define __ximadefs_h
+
+#include "ximacfg.h"
+
+#if /*defined(_AFXDLL)||*/defined(_USRDLL)
+ #define DLL_EXP __declspec(dllexport)
+#elif defined(_MSC_VER)&&(_MSC_VER<1200)
+ #define DLL_EXP __declspec(dllimport)
+#else
+ #define DLL_EXP
+#endif
+
+
+#if CXIMAGE_SUPPORT_EXCEPTION_HANDLING
+ #define cx_try try
+ #define cx_throw(message) throw(message)
+ #define cx_catch catch (const char *message)
+#else
+ #define cx_try bool cx_error=false;
+ #define cx_throw(message) {cx_error=true; if(strcmp(message,"")) strncpy(info.szLastError,message,255); goto cx_error_catch;}
+ #define cx_catch cx_error_catch: char message[]=""; if(cx_error)
+#endif
+
+
+#if CXIMAGE_SUPPORT_JP2 || CXIMAGE_SUPPORT_JPC || CXIMAGE_SUPPORT_PGX || CXIMAGE_SUPPORT_PNM || CXIMAGE_SUPPORT_RAS
+ #define CXIMAGE_SUPPORT_JASPER 1
+#else
+ #define CXIMAGE_SUPPORT_JASPER 0
+#endif
+
+#if CXIMAGE_SUPPORT_DSP
+#undef CXIMAGE_SUPPORT_TRANSFORMATION
+ #define CXIMAGE_SUPPORT_TRANSFORMATION 1
+#endif
+
+#if CXIMAGE_SUPPORT_TRANSFORMATION || CXIMAGE_SUPPORT_TIF || CXIMAGE_SUPPORT_TGA || CXIMAGE_SUPPORT_BMP || CXIMAGE_SUPPORT_WINDOWS
+ #define CXIMAGE_SUPPORT_BASICTRANSFORMATIONS 1
+#endif
+
+#if CXIMAGE_SUPPORT_DSP || CXIMAGE_SUPPORT_TRANSFORMATION
+#undef CXIMAGE_SUPPORT_INTERPOLATION
+ #define CXIMAGE_SUPPORT_INTERPOLATION 1
+#endif
+
+#if defined (_WIN32_WCE)
+ #undef CXIMAGE_SUPPORT_WMF
+ #define CXIMAGE_SUPPORT_WMF 0
+#endif
+
+#if !defined(WIN32) && !defined(_WIN32_WCE)
+ #undef CXIMAGE_SUPPORT_WINDOWS
+ #define CXIMAGE_SUPPORT_WINDOWS 0
+#endif
+
+#ifndef min
+#define min(a,b) (((a)<(b))?(a):(b))
+#endif
+#ifndef max
+#define max(a,b) (((a)>(b))?(a):(b))
+#endif
+
+#ifndef PI
+ #define PI 3.141592653589793f
+#endif
+
+
+#if defined(WIN32) || defined(_WIN32_WCE)
+#include <windows.h>
+#include <tchar.h>
+#endif
+
+#include <stdio.h>
+#include <math.h>
+
+#ifdef __BORLANDC__
+
+#ifndef _COMPLEX_DEFINED
+
+typedef struct tagcomplex {
+ double x,y;
+} _complex;
+
+#endif
+
+#define _cabs(c) sqrt(c.x*c.x+c.y*c.y)
+
+#endif
+
+#if defined(WIN32) || defined(_WIN32_WCE)
+ #include "stdint.h"
+#endif
+
+#if !defined(WIN32) && !defined(_WIN32_WCE)
+
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+
+typedef uint32_t COLORREF;
+typedef void* HANDLE;
+typedef void* HRGN;
+
+#ifndef BOOL
+#define BOOL bool
+#endif
+
+#ifndef TRUE
+#define TRUE true
+#endif
+
+#ifndef FALSE
+#define FALSE false
+#endif
+
+#ifndef TCHAR
+#define TCHAR char
+#define _T
+#endif
+
+typedef struct tagRECT
+{
+ int32_t left;
+ int32_t top;
+ int32_t right;
+ int32_t bottom;
+} RECT;
+
+typedef struct tagPOINT
+{
+ int32_t x;
+ int32_t y;
+} POINT;
+
+typedef struct tagRGBQUAD {
+ uint8_t rgbBlue;
+ uint8_t rgbGreen;
+ uint8_t rgbRed;
+ uint8_t rgbReserved;
+} RGBQUAD;
+
+#pragma pack(1)
+
+typedef struct tagBITMAPINFOHEADER{
+ uint32_t biSize;
+ int32_t biWidth;
+ int32_t biHeight;
+ uint16_t biPlanes;
+ uint16_t biBitCount;
+ uint32_t biCompression;
+ uint32_t biSizeImage;
+ int32_t biXPelsPerMeter;
+ int32_t biYPelsPerMeter;
+ uint32_t biClrUsed;
+ uint32_t biClrImportant;
+} BITMAPINFOHEADER;
+
+typedef struct tagBITMAPFILEHEADER {
+ uint16_t bfType;
+ uint32_t bfSize;
+ uint16_t bfReserved1;
+ uint16_t bfReserved2;
+ uint32_t bfOffBits;
+} BITMAPFILEHEADER;
+
+typedef struct tagBITMAPCOREHEADER {
+ uint32_t bcSize;
+ uint16_t bcWidth;
+ uint16_t bcHeight;
+ uint16_t bcPlanes;
+ uint16_t bcBitCount;
+} BITMAPCOREHEADER;
+
+typedef struct tagRGBTRIPLE {
+ uint8_t rgbtBlue;
+ uint8_t rgbtGreen;
+ uint8_t rgbtRed;
+} RGBTRIPLE;
+
+#pragma pack()
+
+#define BI_RGB 0L
+#define BI_RLE8 1L
+#define BI_RLE4 2L
+#define BI_BITFIELDS 3L
+
+#define GetRValue(rgb) ((uint8_t)(rgb))
+#define GetGValue(rgb) ((uint8_t)(((uint16_t)(rgb)) >> 8))
+#define GetBValue(rgb) ((uint8_t)((rgb)>>16))
+#define RGB(r,g,b) ((COLORREF)(((uint8_t)(r)|((uint16_t)((uint8_t)(g))<<8))|(((uint32_t)(uint8_t)(b))<<16)))
+
+#ifndef _COMPLEX_DEFINED
+
+typedef struct tagcomplex {
+ double x,y;
+} _complex;
+
+#endif
+
+#define _cabs(c) sqrt(c.x*c.x+c.y*c.y)
+
+#endif
+
+#endif //__ximadefs
diff --git a/smelt/sdl/CxImage/ximadsp.cpp b/smelt/sdl/CxImage/ximadsp.cpp new file mode 100644 index 0000000..df73136 --- /dev/null +++ b/smelt/sdl/CxImage/ximadsp.cpp @@ -0,0 +1,3771 @@ +// xImaDsp.cpp : DSP functions
+/* 07/08/2001 v1.00 - Davide Pizzolato - www.xdp.it
+ * CxImage version 7.0.0 31/Dec/2010
+ */
+
+#include "ximage.h"
+
+#include "ximaiter.h"
+
+#if CXIMAGE_SUPPORT_DSP
+
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Converts the image to B&W.
+ * The OptimalThreshold() function can be used for calculating the optimal threshold.
+ * \param level: the lightness threshold.
+ * \return true if everything is ok
+ */
+bool CxImage::Threshold(uint8_t level)
+{
+ if (!pDib) return false;
+ if (head.biBitCount == 1) return true;
+
+ GrayScale();
+
+ CxImage tmp(head.biWidth,head.biHeight,1);
+ if (!tmp.IsValid()){
+ strcpy(info.szLastError,tmp.GetLastError());
+ return false;
+ }
+
+ for (int32_t y=0;y<head.biHeight;y++){
+ info.nProgress = (int32_t)(100*y/head.biHeight);
+ if (info.nEscape) break;
+ for (int32_t x=0;x<head.biWidth;x++){
+ if (BlindGetPixelIndex(x,y)>level)
+ tmp.BlindSetPixelIndex(x,y,1);
+ else
+ tmp.BlindSetPixelIndex(x,y,0);
+ }
+ }
+ tmp.SetPaletteColor(0,0,0,0);
+ tmp.SetPaletteColor(1,255,255,255);
+ Transfer(tmp);
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Converts the image to B&W, using a threshold mask
+ * \param pThresholdMask: the lightness threshold mask.
+ * the pThresholdMask image must be grayscale with same with and height of the current image
+ * \return true if everything is ok
+ */
+bool CxImage::Threshold(CxImage* pThresholdMask)
+{
+ if (!pDib) return false;
+ if (head.biBitCount == 1) return true;
+
+ if (!pThresholdMask) return false;
+
+ if (!pThresholdMask->IsValid() ||
+ !pThresholdMask->IsGrayScale() ||
+ pThresholdMask->GetWidth() != GetWidth() ||
+ pThresholdMask->GetHeight() != GetHeight()){
+ strcpy(info.szLastError,"invalid ThresholdMask");
+ return false;
+ }
+
+ GrayScale();
+
+ CxImage tmp(head.biWidth,head.biHeight,1);
+ if (!tmp.IsValid()){
+ strcpy(info.szLastError,tmp.GetLastError());
+ return false;
+ }
+
+ for (int32_t y=0;y<head.biHeight;y++){
+ info.nProgress = (int32_t)(100*y/head.biHeight);
+ if (info.nEscape) break;
+ for (int32_t x=0;x<head.biWidth;x++){
+ if (BlindGetPixelIndex(x,y)>pThresholdMask->BlindGetPixelIndex(x,y))
+ tmp.BlindSetPixelIndex(x,y,1);
+ else
+ tmp.BlindSetPixelIndex(x,y,0);
+ }
+ }
+ tmp.SetPaletteColor(0,0,0,0);
+ tmp.SetPaletteColor(1,255,255,255);
+ Transfer(tmp);
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Filters only the pixels with a lightness less (or more) than the threshold level,
+ * and preserves the colors for the unfiltered pixels.
+ * \param level = the lightness threshold.
+ * \param bDirection = false: filter dark pixels, true: filter light pixels
+ * \param nBkgndColor = filtered pixels are set to nBkgndColor color
+ * \param bSetAlpha = if true, sets also the alpha component for the filtered pixels, with nBkgndColor.rgbReserved
+ * \return true if everything is ok
+ * \author [DP], [wangsongtao]
+ */
+////////////////////////////////////////////////////////////////////////////////
+bool CxImage::Threshold2(uint8_t level, bool bDirection, RGBQUAD nBkgndColor, bool bSetAlpha)
+{
+ if (!pDib) return false;
+ if (head.biBitCount == 1) return true;
+
+ CxImage tmp(*this, true, false, false);
+ if (!tmp.IsValid()){
+ strcpy(info.szLastError,tmp.GetLastError());
+ return false;
+ }
+
+ tmp.GrayScale();
+
+ int32_t xmin,xmax,ymin,ymax;
+ if (pSelection){
+ xmin = info.rSelectionBox.left; xmax = info.rSelectionBox.right;
+ ymin = info.rSelectionBox.bottom; ymax = info.rSelectionBox.top;
+ } else {
+ xmin = ymin = 0;
+ xmax = head.biWidth; ymax=head.biHeight;
+ }
+
+ for(int32_t y=ymin; y<ymax; y++){
+ info.nProgress = (int32_t)(100*y/head.biHeight);
+ if (info.nEscape) break;
+ for(int32_t x=xmin; x<xmax; x++){
+#if CXIMAGE_SUPPORT_SELECTION
+ if (BlindSelectionIsInside(x,y))
+#endif //CXIMAGE_SUPPORT_SELECTION
+ {
+ uint8_t i = tmp.BlindGetPixelIndex(x,y);
+ if (!bDirection && i<level) BlindSetPixelColor(x,y,nBkgndColor,bSetAlpha);
+ if (bDirection && i>=level) BlindSetPixelColor(x,y,nBkgndColor,bSetAlpha);
+ }
+ }
+ }
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Extract RGB channels from the image. Each channel is an 8 bit grayscale image.
+ * \param r,g,b: pointers to CxImage objects, to store the splited channels
+ * \return true if everything is ok
+ */
+bool CxImage::SplitRGB(CxImage* r,CxImage* g,CxImage* b)
+{
+ if (!pDib) return false;
+ if (r==NULL && g==NULL && b==NULL) return false;
+
+ CxImage tmpr(head.biWidth,head.biHeight,8);
+ CxImage tmpg(head.biWidth,head.biHeight,8);
+ CxImage tmpb(head.biWidth,head.biHeight,8);
+
+ RGBQUAD color;
+ for(int32_t y=0; y<head.biHeight; y++){
+ for(int32_t x=0; x<head.biWidth; x++){
+ color = BlindGetPixelColor(x,y);
+ if (r) tmpr.BlindSetPixelIndex(x,y,color.rgbRed);
+ if (g) tmpg.BlindSetPixelIndex(x,y,color.rgbGreen);
+ if (b) tmpb.BlindSetPixelIndex(x,y,color.rgbBlue);
+ }
+ }
+
+ if (r) tmpr.SetGrayPalette();
+ if (g) tmpg.SetGrayPalette();
+ if (b) tmpb.SetGrayPalette();
+
+ /*for(int32_t j=0; j<256; j++){
+ uint8_t i=(uint8_t)j;
+ if (r) tmpr.SetPaletteColor(i,i,0,0);
+ if (g) tmpg.SetPaletteColor(i,0,i,0);
+ if (b) tmpb.SetPaletteColor(i,0,0,i);
+ }*/
+
+ if (r) r->Transfer(tmpr);
+ if (g) g->Transfer(tmpg);
+ if (b) b->Transfer(tmpb);
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Extract CMYK channels from the image. Each channel is an 8 bit grayscale image.
+ * \param c,m,y,k: pointers to CxImage objects, to store the splited channels
+ * \return true if everything is ok
+ */
+bool CxImage::SplitCMYK(CxImage* c,CxImage* m,CxImage* y,CxImage* k)
+{
+ if (!pDib) return false;
+ if (c==NULL && m==NULL && y==NULL && k==NULL) return false;
+
+ CxImage tmpc(head.biWidth,head.biHeight,8);
+ CxImage tmpm(head.biWidth,head.biHeight,8);
+ CxImage tmpy(head.biWidth,head.biHeight,8);
+ CxImage tmpk(head.biWidth,head.biHeight,8);
+
+ RGBQUAD color;
+ for(int32_t yy=0; yy<head.biHeight; yy++){
+ for(int32_t xx=0; xx<head.biWidth; xx++){
+ color = BlindGetPixelColor(xx,yy);
+ if (c) tmpc.BlindSetPixelIndex(xx,yy,(uint8_t)(255-color.rgbRed));
+ if (m) tmpm.BlindSetPixelIndex(xx,yy,(uint8_t)(255-color.rgbGreen));
+ if (y) tmpy.BlindSetPixelIndex(xx,yy,(uint8_t)(255-color.rgbBlue));
+ if (k) tmpk.BlindSetPixelIndex(xx,yy,(uint8_t)RGB2GRAY(color.rgbRed,color.rgbGreen,color.rgbBlue));
+ }
+ }
+
+ if (c) tmpc.SetGrayPalette();
+ if (m) tmpm.SetGrayPalette();
+ if (y) tmpy.SetGrayPalette();
+ if (k) tmpk.SetGrayPalette();
+
+ if (c) c->Transfer(tmpc);
+ if (m) m->Transfer(tmpm);
+ if (y) y->Transfer(tmpy);
+ if (k) k->Transfer(tmpk);
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Extract YUV channels from the image. Each channel is an 8 bit grayscale image.
+ * \param y,u,v: pointers to CxImage objects, to store the splited channels
+ * \return true if everything is ok
+ */
+bool CxImage::SplitYUV(CxImage* y,CxImage* u,CxImage* v)
+{
+ if (!pDib) return false;
+ if (y==NULL && u==NULL && v==NULL) return false;
+
+ CxImage tmpy(head.biWidth,head.biHeight,8);
+ CxImage tmpu(head.biWidth,head.biHeight,8);
+ CxImage tmpv(head.biWidth,head.biHeight,8);
+
+ RGBQUAD color;
+ for(int32_t yy=0; yy<head.biHeight; yy++){
+ for(int32_t x=0; x<head.biWidth; x++){
+ color = RGBtoYUV(BlindGetPixelColor(x,yy));
+ if (y) tmpy.BlindSetPixelIndex(x,yy,color.rgbRed);
+ if (u) tmpu.BlindSetPixelIndex(x,yy,color.rgbGreen);
+ if (v) tmpv.BlindSetPixelIndex(x,yy,color.rgbBlue);
+ }
+ }
+
+ if (y) tmpy.SetGrayPalette();
+ if (u) tmpu.SetGrayPalette();
+ if (v) tmpv.SetGrayPalette();
+
+ if (y) y->Transfer(tmpy);
+ if (u) u->Transfer(tmpu);
+ if (v) v->Transfer(tmpv);
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Extract YIQ channels from the image. Each channel is an 8 bit grayscale image.
+ * \param y,i,q: pointers to CxImage objects, to store the splited channels
+ * \return true if everything is ok
+ */
+bool CxImage::SplitYIQ(CxImage* y,CxImage* i,CxImage* q)
+{
+ if (!pDib) return false;
+ if (y==NULL && i==NULL && q==NULL) return false;
+
+ CxImage tmpy(head.biWidth,head.biHeight,8);
+ CxImage tmpi(head.biWidth,head.biHeight,8);
+ CxImage tmpq(head.biWidth,head.biHeight,8);
+
+ RGBQUAD color;
+ for(int32_t yy=0; yy<head.biHeight; yy++){
+ for(int32_t x=0; x<head.biWidth; x++){
+ color = RGBtoYIQ(BlindGetPixelColor(x,yy));
+ if (y) tmpy.BlindSetPixelIndex(x,yy,color.rgbRed);
+ if (i) tmpi.BlindSetPixelIndex(x,yy,color.rgbGreen);
+ if (q) tmpq.BlindSetPixelIndex(x,yy,color.rgbBlue);
+ }
+ }
+
+ if (y) tmpy.SetGrayPalette();
+ if (i) tmpi.SetGrayPalette();
+ if (q) tmpq.SetGrayPalette();
+
+ if (y) y->Transfer(tmpy);
+ if (i) i->Transfer(tmpi);
+ if (q) q->Transfer(tmpq);
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Extract XYZ channels from the image. Each channel is an 8 bit grayscale image.
+ * \param x,y,z: pointers to CxImage objects, to store the splited channels
+ * \return true if everything is ok
+ */
+bool CxImage::SplitXYZ(CxImage* x,CxImage* y,CxImage* z)
+{
+ if (!pDib) return false;
+ if (x==NULL && y==NULL && z==NULL) return false;
+
+ CxImage tmpx(head.biWidth,head.biHeight,8);
+ CxImage tmpy(head.biWidth,head.biHeight,8);
+ CxImage tmpz(head.biWidth,head.biHeight,8);
+
+ RGBQUAD color;
+ for(int32_t yy=0; yy<head.biHeight; yy++){
+ for(int32_t xx=0; xx<head.biWidth; xx++){
+ color = RGBtoXYZ(BlindGetPixelColor(xx,yy));
+ if (x) tmpx.BlindSetPixelIndex(xx,yy,color.rgbRed);
+ if (y) tmpy.BlindSetPixelIndex(xx,yy,color.rgbGreen);
+ if (z) tmpz.BlindSetPixelIndex(xx,yy,color.rgbBlue);
+ }
+ }
+
+ if (x) tmpx.SetGrayPalette();
+ if (y) tmpy.SetGrayPalette();
+ if (z) tmpz.SetGrayPalette();
+
+ if (x) x->Transfer(tmpx);
+ if (y) y->Transfer(tmpy);
+ if (z) z->Transfer(tmpz);
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Extract HSL channels from the image. Each channel is an 8 bit grayscale image.
+ * \param h,s,l: pointers to CxImage objects, to store the splited channels
+ * \return true if everything is ok
+ */
+bool CxImage::SplitHSL(CxImage* h,CxImage* s,CxImage* l)
+{
+ if (!pDib) return false;
+ if (h==NULL && s==NULL && l==NULL) return false;
+
+ CxImage tmph(head.biWidth,head.biHeight,8);
+ CxImage tmps(head.biWidth,head.biHeight,8);
+ CxImage tmpl(head.biWidth,head.biHeight,8);
+
+ RGBQUAD color;
+ for(int32_t y=0; y<head.biHeight; y++){
+ for(int32_t x=0; x<head.biWidth; x++){
+ color = RGBtoHSL(BlindGetPixelColor(x,y));
+ if (h) tmph.BlindSetPixelIndex(x,y,color.rgbRed);
+ if (s) tmps.BlindSetPixelIndex(x,y,color.rgbGreen);
+ if (l) tmpl.BlindSetPixelIndex(x,y,color.rgbBlue);
+ }
+ }
+
+ if (h) tmph.SetGrayPalette();
+ if (s) tmps.SetGrayPalette();
+ if (l) tmpl.SetGrayPalette();
+
+ /* pseudo-color generator for hue channel (visual debug)
+ if (h) for(int32_t j=0; j<256; j++){
+ uint8_t i=(uint8_t)j;
+ RGBQUAD hsl={120,240,i,0};
+ tmph.SetPaletteColor(i,HSLtoRGB(hsl));
+ }*/
+
+ if (h) h->Transfer(tmph);
+ if (s) s->Transfer(tmps);
+ if (l) l->Transfer(tmpl);
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+#define HSLMAX 255 /* H,L, and S vary over 0-HSLMAX */
+#define RGBMAX 255 /* R,G, and B vary over 0-RGBMAX */
+ /* HSLMAX BEST IF DIVISIBLE BY 6 */
+ /* RGBMAX, HSLMAX must each fit in a uint8_t. */
+/* Hue is undefined if Saturation is 0 (grey-scale) */
+/* This value determines where the Hue scrollbar is */
+/* initially set for achromatic colors */
+#define HSLUNDEFINED (HSLMAX*2/3)
+////////////////////////////////////////////////////////////////////////////////
+RGBQUAD CxImage::RGBtoHSL(RGBQUAD lRGBColor)
+{
+ uint8_t R,G,B; /* input RGB values */
+ uint8_t H,L,S; /* output HSL values */
+ uint8_t cMax,cMin; /* max and min RGB values */
+ uint16_t Rdelta,Gdelta,Bdelta; /* intermediate value: % of spread from max*/
+
+ R = lRGBColor.rgbRed; /* get R, G, and B out of uint32_t */
+ G = lRGBColor.rgbGreen;
+ B = lRGBColor.rgbBlue;
+
+ cMax = max( max(R,G), B); /* calculate lightness */
+ cMin = min( min(R,G), B);
+ L = (uint8_t)((((cMax+cMin)*HSLMAX)+RGBMAX)/(2*RGBMAX));
+
+ if (cMax==cMin){ /* r=g=b --> achromatic case */
+ S = 0; /* saturation */
+ H = HSLUNDEFINED; /* hue */
+ } else { /* chromatic case */
+ if (L <= (HSLMAX/2)) /* saturation */
+ S = (uint8_t)((((cMax-cMin)*HSLMAX)+((cMax+cMin)/2))/(cMax+cMin));
+ else
+ S = (uint8_t)((((cMax-cMin)*HSLMAX)+((2*RGBMAX-cMax-cMin)/2))/(2*RGBMAX-cMax-cMin));
+ /* hue */
+ Rdelta = (uint16_t)((((cMax-R)*(HSLMAX/6)) + ((cMax-cMin)/2) ) / (cMax-cMin));
+ Gdelta = (uint16_t)((((cMax-G)*(HSLMAX/6)) + ((cMax-cMin)/2) ) / (cMax-cMin));
+ Bdelta = (uint16_t)((((cMax-B)*(HSLMAX/6)) + ((cMax-cMin)/2) ) / (cMax-cMin));
+
+ if (R == cMax)
+ H = (uint8_t)(Bdelta - Gdelta);
+ else if (G == cMax)
+ H = (uint8_t)((HSLMAX/3) + Rdelta - Bdelta);
+ else /* B == cMax */
+ H = (uint8_t)(((2*HSLMAX)/3) + Gdelta - Rdelta);
+
+// if (H < 0) H += HSLMAX; //always false
+ if (H > HSLMAX) H -= HSLMAX;
+ }
+ RGBQUAD hsl={L,S,H,0};
+ return hsl;
+}
+////////////////////////////////////////////////////////////////////////////////
+float CxImage::HueToRGB(float n1,float n2, float hue)
+{
+ //<F. Livraghi> fixed implementation for HSL2RGB routine
+ float rValue;
+
+ if (hue > 360)
+ hue = hue - 360;
+ else if (hue < 0)
+ hue = hue + 360;
+
+ if (hue < 60)
+ rValue = n1 + (n2-n1)*hue/60.0f;
+ else if (hue < 180)
+ rValue = n2;
+ else if (hue < 240)
+ rValue = n1+(n2-n1)*(240-hue)/60;
+ else
+ rValue = n1;
+
+ return rValue;
+}
+////////////////////////////////////////////////////////////////////////////////
+RGBQUAD CxImage::HSLtoRGB(COLORREF cHSLColor)
+{
+ return HSLtoRGB(RGBtoRGBQUAD(cHSLColor));
+}
+////////////////////////////////////////////////////////////////////////////////
+RGBQUAD CxImage::HSLtoRGB(RGBQUAD lHSLColor)
+{
+ //<F. Livraghi> fixed implementation for HSL2RGB routine
+ float h,s,l;
+ float m1,m2;
+ uint8_t r,g,b;
+
+ h = (float)lHSLColor.rgbRed * 360.0f/255.0f;
+ s = (float)lHSLColor.rgbGreen/255.0f;
+ l = (float)lHSLColor.rgbBlue/255.0f;
+
+ if (l <= 0.5) m2 = l * (1+s);
+ else m2 = l + s - l*s;
+
+ m1 = 2 * l - m2;
+
+ if (s == 0) {
+ r=g=b=(uint8_t)(l*255.0f);
+ } else {
+ r = (uint8_t)(HueToRGB(m1,m2,h+120) * 255.0f);
+ g = (uint8_t)(HueToRGB(m1,m2,h) * 255.0f);
+ b = (uint8_t)(HueToRGB(m1,m2,h-120) * 255.0f);
+ }
+
+ RGBQUAD rgb = {b,g,r,0};
+ return rgb;
+}
+////////////////////////////////////////////////////////////////////////////////
+RGBQUAD CxImage::YUVtoRGB(RGBQUAD lYUVColor)
+{
+ int32_t U,V,R,G,B;
+ float Y = lYUVColor.rgbRed;
+ U = lYUVColor.rgbGreen - 128;
+ V = lYUVColor.rgbBlue - 128;
+
+// R = (int32_t)(1.164 * Y + 2.018 * U);
+// G = (int32_t)(1.164 * Y - 0.813 * V - 0.391 * U);
+// B = (int32_t)(1.164 * Y + 1.596 * V);
+ R = (int32_t)( Y + 1.403f * V);
+ G = (int32_t)( Y - 0.344f * U - 0.714f * V);
+ B = (int32_t)( Y + 1.770f * U);
+
+ R= min(255,max(0,R));
+ G= min(255,max(0,G));
+ B= min(255,max(0,B));
+ RGBQUAD rgb={(uint8_t)B,(uint8_t)G,(uint8_t)R,0};
+ return rgb;
+}
+////////////////////////////////////////////////////////////////////////////////
+RGBQUAD CxImage::RGBtoYUV(RGBQUAD lRGBColor)
+{
+ int32_t Y,U,V,R,G,B;
+ R = lRGBColor.rgbRed;
+ G = lRGBColor.rgbGreen;
+ B = lRGBColor.rgbBlue;
+
+// Y = (int32_t)( 0.257 * R + 0.504 * G + 0.098 * B);
+// U = (int32_t)( 0.439 * R - 0.368 * G - 0.071 * B + 128);
+// V = (int32_t)(-0.148 * R - 0.291 * G + 0.439 * B + 128);
+ Y = (int32_t)(0.299f * R + 0.587f * G + 0.114f * B);
+ U = (int32_t)((B-Y) * 0.565f + 128);
+ V = (int32_t)((R-Y) * 0.713f + 128);
+
+ Y= min(255,max(0,Y));
+ U= min(255,max(0,U));
+ V= min(255,max(0,V));
+ RGBQUAD yuv={(uint8_t)V,(uint8_t)U,(uint8_t)Y,0};
+ return yuv;
+}
+////////////////////////////////////////////////////////////////////////////////
+RGBQUAD CxImage::YIQtoRGB(RGBQUAD lYIQColor)
+{
+ int32_t I,Q,R,G,B;
+ float Y = lYIQColor.rgbRed;
+ I = lYIQColor.rgbGreen - 128;
+ Q = lYIQColor.rgbBlue - 128;
+
+ R = (int32_t)( Y + 0.956f * I + 0.621f * Q);
+ G = (int32_t)( Y - 0.273f * I - 0.647f * Q);
+ B = (int32_t)( Y - 1.104f * I + 1.701f * Q);
+
+ R= min(255,max(0,R));
+ G= min(255,max(0,G));
+ B= min(255,max(0,B));
+ RGBQUAD rgb={(uint8_t)B,(uint8_t)G,(uint8_t)R,0};
+ return rgb;
+}
+////////////////////////////////////////////////////////////////////////////////
+RGBQUAD CxImage::RGBtoYIQ(RGBQUAD lRGBColor)
+{
+ int32_t Y,I,Q,R,G,B;
+ R = lRGBColor.rgbRed;
+ G = lRGBColor.rgbGreen;
+ B = lRGBColor.rgbBlue;
+
+ Y = (int32_t)( 0.2992f * R + 0.5868f * G + 0.1140f * B);
+ I = (int32_t)( 0.5960f * R - 0.2742f * G - 0.3219f * B + 128);
+ Q = (int32_t)( 0.2109f * R - 0.5229f * G + 0.3120f * B + 128);
+
+ Y= min(255,max(0,Y));
+ I= min(255,max(0,I));
+ Q= min(255,max(0,Q));
+ RGBQUAD yiq={(uint8_t)Q,(uint8_t)I,(uint8_t)Y,0};
+ return yiq;
+}
+////////////////////////////////////////////////////////////////////////////////
+RGBQUAD CxImage::XYZtoRGB(RGBQUAD lXYZColor)
+{
+ int32_t X,Y,Z,R,G,B;
+ X = lXYZColor.rgbRed;
+ Y = lXYZColor.rgbGreen;
+ Z = lXYZColor.rgbBlue;
+ double k=1.088751;
+
+ R = (int32_t)( 3.240479f * X - 1.537150f * Y - 0.498535f * Z * k);
+ G = (int32_t)( -0.969256f * X + 1.875992f * Y + 0.041556f * Z * k);
+ B = (int32_t)( 0.055648f * X - 0.204043f * Y + 1.057311f * Z * k);
+
+ R= min(255,max(0,R));
+ G= min(255,max(0,G));
+ B= min(255,max(0,B));
+ RGBQUAD rgb={(uint8_t)B,(uint8_t)G,(uint8_t)R,0};
+ return rgb;
+}
+////////////////////////////////////////////////////////////////////////////////
+RGBQUAD CxImage::RGBtoXYZ(RGBQUAD lRGBColor)
+{
+ int32_t X,Y,Z,R,G,B;
+ R = lRGBColor.rgbRed;
+ G = lRGBColor.rgbGreen;
+ B = lRGBColor.rgbBlue;
+
+ X = (int32_t)( 0.412453f * R + 0.357580f * G + 0.180423f * B);
+ Y = (int32_t)( 0.212671f * R + 0.715160f * G + 0.072169f * B);
+ Z = (int32_t)((0.019334f * R + 0.119193f * G + 0.950227f * B)*0.918483657f);
+
+ //X= min(255,max(0,X));
+ //Y= min(255,max(0,Y));
+ //Z= min(255,max(0,Z));
+ RGBQUAD xyz={(uint8_t)Z,(uint8_t)Y,(uint8_t)X,0};
+ return xyz;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Generates a "rainbow" palette with saturated colors
+ * \param correction: 1 generates a single hue spectrum. 0.75 is nice for scientific applications.
+ */
+void CxImage::HuePalette(float correction)
+{
+ if (head.biClrUsed==0) return;
+
+ for(uint32_t j=0; j<head.biClrUsed; j++){
+ uint8_t i=(uint8_t)(j*correction*(255/(head.biClrUsed-1)));
+ RGBQUAD hsl={120,240,i,0};
+ SetPaletteColor((uint8_t)j,HSLtoRGB(hsl));
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Replaces the original hue and saturation values.
+ * \param hue: hue
+ * \param sat: saturation
+ * \param blend: can be from 0 (no effect) to 1 (full effect)
+ * \return true if everything is ok
+ */
+bool CxImage::Colorize(uint8_t hue, uint8_t sat, float blend)
+{
+ if (!pDib) return false;
+
+ if (blend < 0.0f) blend = 0.0f;
+ if (blend > 1.0f) blend = 1.0f;
+ int32_t a0 = (int32_t)(256*blend);
+ int32_t a1 = 256 - a0;
+
+ bool bFullBlend = false;
+ if (blend > 0.999f) bFullBlend = true;
+
+ RGBQUAD color,hsl;
+ if (head.biClrUsed==0){
+
+ int32_t xmin,xmax,ymin,ymax;
+ if (pSelection){
+ xmin = info.rSelectionBox.left; xmax = info.rSelectionBox.right;
+ ymin = info.rSelectionBox.bottom; ymax = info.rSelectionBox.top;
+ } else {
+ xmin = ymin = 0;
+ xmax = head.biWidth; ymax=head.biHeight;
+ }
+
+ for(int32_t y=ymin; y<ymax; y++){
+ info.nProgress = (int32_t)(100*(y-ymin)/(ymax-ymin));
+ if (info.nEscape) break;
+ for(int32_t x=xmin; x<xmax; x++){
+#if CXIMAGE_SUPPORT_SELECTION
+ if (BlindSelectionIsInside(x,y))
+#endif //CXIMAGE_SUPPORT_SELECTION
+ {
+ if (bFullBlend){
+ color = RGBtoHSL(BlindGetPixelColor(x,y));
+ color.rgbRed=hue;
+ color.rgbGreen=sat;
+ BlindSetPixelColor(x,y,HSLtoRGB(color));
+ } else {
+ color = BlindGetPixelColor(x,y);
+ hsl.rgbRed=hue;
+ hsl.rgbGreen=sat;
+ hsl.rgbBlue = (uint8_t)RGB2GRAY(color.rgbRed,color.rgbGreen,color.rgbBlue);
+ hsl = HSLtoRGB(hsl);
+ //BlendPixelColor(x,y,hsl,blend);
+ //color.rgbRed = (uint8_t)(hsl.rgbRed * blend + color.rgbRed * (1.0f - blend));
+ //color.rgbBlue = (uint8_t)(hsl.rgbBlue * blend + color.rgbBlue * (1.0f - blend));
+ //color.rgbGreen = (uint8_t)(hsl.rgbGreen * blend + color.rgbGreen * (1.0f - blend));
+ color.rgbRed = (uint8_t)((hsl.rgbRed * a0 + color.rgbRed * a1)>>8);
+ color.rgbBlue = (uint8_t)((hsl.rgbBlue * a0 + color.rgbBlue * a1)>>8);
+ color.rgbGreen = (uint8_t)((hsl.rgbGreen * a0 + color.rgbGreen * a1)>>8);
+ BlindSetPixelColor(x,y,color);
+ }
+ }
+ }
+ }
+ } else {
+ for(uint32_t j=0; j<head.biClrUsed; j++){
+ if (bFullBlend){
+ color = RGBtoHSL(GetPaletteColor((uint8_t)j));
+ color.rgbRed=hue;
+ color.rgbGreen=sat;
+ SetPaletteColor((uint8_t)j,HSLtoRGB(color));
+ } else {
+ color = GetPaletteColor((uint8_t)j);
+ hsl.rgbRed=hue;
+ hsl.rgbGreen=sat;
+ hsl.rgbBlue = (uint8_t)RGB2GRAY(color.rgbRed,color.rgbGreen,color.rgbBlue);
+ hsl = HSLtoRGB(hsl);
+ color.rgbRed = (uint8_t)(hsl.rgbRed * blend + color.rgbRed * (1.0f - blend));
+ color.rgbBlue = (uint8_t)(hsl.rgbBlue * blend + color.rgbBlue * (1.0f - blend));
+ color.rgbGreen = (uint8_t)(hsl.rgbGreen * blend + color.rgbGreen * (1.0f - blend));
+ SetPaletteColor((uint8_t)j,color);
+ }
+ }
+ }
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Changes the brightness and the contrast of the image.
+ * \param brightness: can be from -255 to 255, if brightness is negative, the image becomes dark.
+ * \param contrast: can be from -100 to 100, the neutral value is 0.
+ * \return true if everything is ok
+ */
+bool CxImage::Light(int32_t brightness, int32_t contrast)
+{
+ if (!pDib) return false;
+ float c=(100 + contrast)/100.0f;
+ brightness+=128;
+
+ uint8_t cTable[256]; //<nipper>
+ for (int32_t i=0;i<256;i++) {
+ cTable[i] = (uint8_t)max(0,min(255,(int32_t)((i-128)*c + brightness + 0.5f)));
+ }
+
+ return Lut(cTable);
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * \return mean lightness of the image. Useful with Threshold() and Light()
+ */
+float CxImage::Mean()
+{
+ if (!pDib) return 0;
+
+ CxImage tmp(*this,true);
+ if (!tmp.IsValid()){
+ strcpy(info.szLastError,tmp.GetLastError());
+ return false;
+ }
+
+ tmp.GrayScale();
+ float sum=0;
+
+ int32_t xmin,xmax,ymin,ymax;
+ if (pSelection){
+ xmin = info.rSelectionBox.left; xmax = info.rSelectionBox.right;
+ ymin = info.rSelectionBox.bottom; ymax = info.rSelectionBox.top;
+ } else {
+ xmin = ymin = 0;
+ xmax = head.biWidth; ymax=head.biHeight;
+ }
+ if (xmin==xmax || ymin==ymax) return (float)0.0;
+
+ uint8_t *iSrc=tmp.info.pImage;
+ iSrc += tmp.info.dwEffWidth*ymin; // necessary for selections <Admir Hodzic>
+
+ for(int32_t y=ymin; y<ymax; y++){
+ info.nProgress = (int32_t)(100*(y-ymin)/(ymax-ymin)); //<zhanghk><Anatoly Ivasyuk>
+ for(int32_t x=xmin; x<xmax; x++){
+ sum+=iSrc[x];
+ }
+ iSrc+=tmp.info.dwEffWidth;
+ }
+ return sum/(xmax-xmin)/(ymax-ymin);
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * 2D linear filter
+ * \param kernel: convolving matrix, in row format.
+ * \param Ksize: size of the kernel.
+ * \param Kfactor: normalization constant.
+ * \param Koffset: bias.
+ * \verbatim Example: the "soften" filter uses this kernel:
+ 1 1 1
+ 1 8 1
+ 1 1 1
+ the function needs: kernel={1,1,1,1,8,1,1,1,1}; Ksize=3; Kfactor=16; Koffset=0; \endverbatim
+ * \return true if everything is ok
+ */
+bool CxImage::Filter(int32_t* kernel, int32_t Ksize, int32_t Kfactor, int32_t Koffset)
+{
+ if (!pDib) return false;
+
+ int32_t k2 = Ksize/2;
+ int32_t kmax= Ksize-k2;
+ int32_t r,g,b,i;
+ int32_t ksumcur,ksumtot;
+ RGBQUAD c;
+
+ CxImage tmp(*this);
+ if (!tmp.IsValid()){
+ strcpy(info.szLastError,tmp.GetLastError());
+ return false;
+ }
+
+ int32_t xmin,xmax,ymin,ymax;
+ if (pSelection){
+ xmin = info.rSelectionBox.left; xmax = info.rSelectionBox.right;
+ ymin = info.rSelectionBox.bottom; ymax = info.rSelectionBox.top;
+ } else {
+ xmin = ymin = 0;
+ xmax = head.biWidth; ymax=head.biHeight;
+ }
+
+ ksumtot = 0;
+ for(int32_t j=-k2;j<kmax;j++){
+ for(int32_t k=-k2;k<kmax;k++){
+ ksumtot += kernel[(j+k2)+Ksize*(k+k2)];
+ }
+ }
+
+ if ((head.biBitCount==8) && IsGrayScale())
+ {
+ uint8_t* cPtr;
+ uint8_t* cPtr2;
+ int32_t iCount;
+ int32_t iY, iY2, iY1;
+ cPtr = info.pImage;
+ cPtr2 = (uint8_t *)tmp.info.pImage;
+ for(int32_t y=ymin; y<ymax; y++){
+ info.nProgress = (int32_t)(100*(y-ymin)/(ymax-ymin));
+ if (info.nEscape) break;
+ iY1 = y*info.dwEffWidth+xmin;
+ for(int32_t x=xmin; x<xmax; x++, iY1++){
+#if CXIMAGE_SUPPORT_SELECTION
+ if (BlindSelectionIsInside(x,y))
+#endif //CXIMAGE_SUPPORT_SELECTION
+ {
+ b=ksumcur=0;
+ iCount = 0;
+ iY2 = ((y-k2)*info.dwEffWidth);
+ for(int32_t j=-k2;j<kmax;j++, iY2+=info.dwEffWidth)
+ {
+ if (0>(y+j) || (y+j)>=head.biHeight) continue;
+ iY = iY2+x;
+ for(int32_t k=-k2;k<kmax;k++, iCount++)
+ {
+ if (0>(x+k) || (x+k)>=head.biWidth) continue;
+ i=kernel[iCount];
+ b += cPtr[iY+k] * i;
+ ksumcur += i;
+ }
+ }
+ if (Kfactor==0 || ksumcur==0){
+ cPtr2[iY1] = (uint8_t)min(255, max(0,(int32_t)(b + Koffset)));
+ } else if (ksumtot == ksumcur) {
+ cPtr2[iY1] = (uint8_t)min(255, max(0,(int32_t)(b/Kfactor + Koffset)));
+ } else {
+ cPtr2[iY1] = (uint8_t)min(255, max(0,(int32_t)((b*ksumtot)/(ksumcur*Kfactor) + Koffset)));
+ }
+ }
+ }
+ }
+ }
+ else
+ {
+ for(int32_t y=ymin; y<ymax; y++){
+ info.nProgress = (int32_t)(100*(y-ymin)/(ymax-ymin));
+ if (info.nEscape) break;
+ for(int32_t x=xmin; x<xmax; x++){
+ #if CXIMAGE_SUPPORT_SELECTION
+ if (BlindSelectionIsInside(x,y))
+ #endif //CXIMAGE_SUPPORT_SELECTION
+ {
+ r=b=g=ksumcur=0;
+ for(int32_t j=-k2;j<kmax;j++){
+ for(int32_t k=-k2;k<kmax;k++){
+ if (!IsInside(x+j,y+k)) continue;
+ c = BlindGetPixelColor(x+j,y+k);
+ i = kernel[(j+k2)+Ksize*(k+k2)];
+ r += c.rgbRed * i;
+ g += c.rgbGreen * i;
+ b += c.rgbBlue * i;
+ ksumcur += i;
+ }
+ }
+ if (Kfactor==0 || ksumcur==0){
+ c.rgbRed = (uint8_t)min(255, max(0,(int32_t)(r + Koffset)));
+ c.rgbGreen = (uint8_t)min(255, max(0,(int32_t)(g + Koffset)));
+ c.rgbBlue = (uint8_t)min(255, max(0,(int32_t)(b + Koffset)));
+ } else if (ksumtot == ksumcur) {
+ c.rgbRed = (uint8_t)min(255, max(0,(int32_t)(r/Kfactor + Koffset)));
+ c.rgbGreen = (uint8_t)min(255, max(0,(int32_t)(g/Kfactor + Koffset)));
+ c.rgbBlue = (uint8_t)min(255, max(0,(int32_t)(b/Kfactor + Koffset)));
+ } else {
+ c.rgbRed = (uint8_t)min(255, max(0,(int32_t)((r*ksumtot)/(ksumcur*Kfactor) + Koffset)));
+ c.rgbGreen = (uint8_t)min(255, max(0,(int32_t)((g*ksumtot)/(ksumcur*Kfactor) + Koffset)));
+ c.rgbBlue = (uint8_t)min(255, max(0,(int32_t)((b*ksumtot)/(ksumcur*Kfactor) + Koffset)));
+ }
+ tmp.BlindSetPixelColor(x,y,c);
+ }
+ }
+ }
+ }
+ Transfer(tmp);
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Enhance the dark areas of the image
+ * \param Ksize: size of the kernel.
+ * \return true if everything is ok
+ */
+bool CxImage::Erode(int32_t Ksize)
+{
+ if (!pDib) return false;
+
+ int32_t k2 = Ksize/2;
+ int32_t kmax= Ksize-k2;
+ uint8_t r,g,b;
+ RGBQUAD c;
+
+ CxImage tmp(*this);
+ if (!tmp.IsValid()){
+ strcpy(info.szLastError,tmp.GetLastError());
+ return false;
+ }
+
+ int32_t xmin,xmax,ymin,ymax;
+ if (pSelection){
+ xmin = info.rSelectionBox.left; xmax = info.rSelectionBox.right;
+ ymin = info.rSelectionBox.bottom; ymax = info.rSelectionBox.top;
+ } else {
+ xmin = ymin = 0;
+ xmax = head.biWidth; ymax=head.biHeight;
+ }
+
+ for(int32_t y=ymin; y<ymax; y++){
+ info.nProgress = (int32_t)(100*(y-ymin)/(ymax-ymin));
+ if (info.nEscape) break;
+ for(int32_t x=xmin; x<xmax; x++){
+#if CXIMAGE_SUPPORT_SELECTION
+ if (BlindSelectionIsInside(x,y))
+#endif //CXIMAGE_SUPPORT_SELECTION
+ {
+ r=b=g=255;
+ for(int32_t j=-k2;j<kmax;j++){
+ for(int32_t k=-k2;k<kmax;k++){
+ if (!IsInside(x+j,y+k)) continue;
+ c = BlindGetPixelColor(x+j,y+k);
+ if (c.rgbRed < r) r=c.rgbRed;
+ if (c.rgbGreen < g) g=c.rgbGreen;
+ if (c.rgbBlue < b) b=c.rgbBlue;
+ }
+ }
+ c.rgbRed = r;
+ c.rgbGreen = g;
+ c.rgbBlue = b;
+ tmp.BlindSetPixelColor(x,y,c);
+ }
+ }
+ }
+ Transfer(tmp);
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Enhance the light areas of the image
+ * \param Ksize: size of the kernel.
+ * \return true if everything is ok
+ */
+bool CxImage::Dilate(int32_t Ksize)
+{
+ if (!pDib) return false;
+
+ int32_t k2 = Ksize/2;
+ int32_t kmax= Ksize-k2;
+ uint8_t r,g,b;
+ RGBQUAD c;
+
+ CxImage tmp(*this);
+ if (!tmp.IsValid()){
+ strcpy(info.szLastError,tmp.GetLastError());
+ return false;
+ }
+
+ int32_t xmin,xmax,ymin,ymax;
+ if (pSelection){
+ xmin = info.rSelectionBox.left; xmax = info.rSelectionBox.right;
+ ymin = info.rSelectionBox.bottom; ymax = info.rSelectionBox.top;
+ } else {
+ xmin = ymin = 0;
+ xmax = head.biWidth; ymax=head.biHeight;
+ }
+
+ for(int32_t y=ymin; y<ymax; y++){
+ info.nProgress = (int32_t)(100*(y-ymin)/(ymax-ymin));
+ if (info.nEscape) break;
+ for(int32_t x=xmin; x<xmax; x++){
+#if CXIMAGE_SUPPORT_SELECTION
+ if (BlindSelectionIsInside(x,y))
+#endif //CXIMAGE_SUPPORT_SELECTION
+ {
+ r=b=g=0;
+ for(int32_t j=-k2;j<kmax;j++){
+ for(int32_t k=-k2;k<kmax;k++){
+ if (!IsInside(x+j,y+k)) continue;
+ c = BlindGetPixelColor(x+j,y+k);
+ if (c.rgbRed > r) r=c.rgbRed;
+ if (c.rgbGreen > g) g=c.rgbGreen;
+ if (c.rgbBlue > b) b=c.rgbBlue;
+ }
+ }
+ c.rgbRed = r;
+ c.rgbGreen = g;
+ c.rgbBlue = b;
+ tmp.BlindSetPixelColor(x,y,c);
+ }
+ }
+ }
+ Transfer(tmp);
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Enhance the variations between adjacent pixels.
+ * Similar results can be achieved using Filter(),
+ * but the algorithms are different both in Edge() and in Contour().
+ * \param Ksize: size of the kernel.
+ * \return true if everything is ok
+ */
+bool CxImage::Edge(int32_t Ksize)
+{
+ if (!pDib) return false;
+
+ int32_t k2 = Ksize/2;
+ int32_t kmax= Ksize-k2;
+ uint8_t r,g,b,rr,gg,bb;
+ RGBQUAD c;
+
+ CxImage tmp(*this);
+ if (!tmp.IsValid()){
+ strcpy(info.szLastError,tmp.GetLastError());
+ return false;
+ }
+
+ int32_t xmin,xmax,ymin,ymax;
+ if (pSelection){
+ xmin = info.rSelectionBox.left; xmax = info.rSelectionBox.right;
+ ymin = info.rSelectionBox.bottom; ymax = info.rSelectionBox.top;
+ } else {
+ xmin = ymin = 0;
+ xmax = head.biWidth; ymax=head.biHeight;
+ }
+
+ for(int32_t y=ymin; y<ymax; y++){
+ info.nProgress = (int32_t)(100*(y-ymin)/(ymax-ymin));
+ if (info.nEscape) break;
+ for(int32_t x=xmin; x<xmax; x++){
+#if CXIMAGE_SUPPORT_SELECTION
+ if (BlindSelectionIsInside(x,y))
+#endif //CXIMAGE_SUPPORT_SELECTION
+ {
+ r=b=g=0;
+ rr=bb=gg=255;
+ for(int32_t j=-k2;j<kmax;j++){
+ for(int32_t k=-k2;k<kmax;k++){
+ if (!IsInside(x+j,y+k)) continue;
+ c = BlindGetPixelColor(x+j,y+k);
+ if (c.rgbRed > r) r=c.rgbRed;
+ if (c.rgbGreen > g) g=c.rgbGreen;
+ if (c.rgbBlue > b) b=c.rgbBlue;
+
+ if (c.rgbRed < rr) rr=c.rgbRed;
+ if (c.rgbGreen < gg) gg=c.rgbGreen;
+ if (c.rgbBlue < bb) bb=c.rgbBlue;
+ }
+ }
+ c.rgbRed = (uint8_t)(255-abs(r-rr));
+ c.rgbGreen = (uint8_t)(255-abs(g-gg));
+ c.rgbBlue = (uint8_t)(255-abs(b-bb));
+ tmp.BlindSetPixelColor(x,y,c);
+ }
+ }
+ }
+ Transfer(tmp);
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Blends two images
+ * \param imgsrc2: image to be mixed with this
+ * \param op: blending method; see ImageOpType
+ * \param lXOffset, lYOffset: image displacement
+ * \param bMixAlpha: if true and imgsrc2 has a valid alpha layer, it will be mixed in the destination image.
+ * \return true if everything is ok
+ * \author [Mwolski],[brunom]
+ */
+void CxImage::Mix(CxImage & imgsrc2, ImageOpType op, int32_t lXOffset, int32_t lYOffset, bool bMixAlpha)
+{
+ int32_t lWide = min(GetWidth(),imgsrc2.GetWidth()-lXOffset);
+ int32_t lHeight = min(GetHeight(),imgsrc2.GetHeight()-lYOffset);
+
+ bool bEditAlpha = false;
+
+#if CXIMAGE_SUPPORT_ALPHA
+ bEditAlpha = imgsrc2.AlphaIsValid() & bMixAlpha;
+ if (bEditAlpha && AlphaIsValid()==false){
+ AlphaCreate();
+ }
+#endif //CXIMAGE_SUPPORT_ALPHA
+
+ RGBQUAD rgbBackgrnd1 = GetTransColor();
+ RGBQUAD rgb1, rgb2, rgbDest;
+
+ for(int32_t lY=0;lY<lHeight;lY++)
+ {
+ info.nProgress = (int32_t)(100*lY/head.biHeight);
+ if (info.nEscape) break;
+
+ for(int32_t lX=0;lX<lWide;lX++)
+ {
+#if CXIMAGE_SUPPORT_SELECTION
+ if (SelectionIsInside(lX,lY) && imgsrc2.SelectionIsInside(lX+lXOffset,lY+lYOffset))
+#endif //CXIMAGE_SUPPORT_SELECTION
+ {
+ rgb1 = GetPixelColor(lX,lY);
+ rgb2 = imgsrc2.GetPixelColor(lX+lXOffset,lY+lYOffset);
+ switch(op)
+ {
+ case OpAvg:
+ rgbDest.rgbBlue = (uint8_t)((rgb1.rgbBlue+rgb2.rgbBlue)/2);
+ rgbDest.rgbGreen = (uint8_t)((rgb1.rgbGreen+rgb2.rgbGreen)/2);
+ rgbDest.rgbRed = (uint8_t)((rgb1.rgbRed+rgb2.rgbRed)/2);
+ if (bEditAlpha) rgbDest.rgbReserved = (uint8_t)((rgb1.rgbReserved+rgb2.rgbReserved)/2);
+ break;
+ case OpAdd:
+ rgbDest.rgbBlue = (uint8_t)max(0,min(255,rgb1.rgbBlue+rgb2.rgbBlue));
+ rgbDest.rgbGreen = (uint8_t)max(0,min(255,rgb1.rgbGreen+rgb2.rgbGreen));
+ rgbDest.rgbRed = (uint8_t)max(0,min(255,rgb1.rgbRed+rgb2.rgbRed));
+ if (bEditAlpha) rgbDest.rgbReserved = (uint8_t)max(0,min(255,rgb1.rgbReserved+rgb2.rgbReserved));
+ break;
+ case OpSub:
+ rgbDest.rgbBlue = (uint8_t)max(0,min(255,rgb1.rgbBlue-rgb2.rgbBlue));
+ rgbDest.rgbGreen = (uint8_t)max(0,min(255,rgb1.rgbGreen-rgb2.rgbGreen));
+ rgbDest.rgbRed = (uint8_t)max(0,min(255,rgb1.rgbRed-rgb2.rgbRed));
+ if (bEditAlpha) rgbDest.rgbReserved = (uint8_t)max(0,min(255,rgb1.rgbReserved-rgb2.rgbReserved));
+ break;
+ case OpAnd:
+ rgbDest.rgbBlue = (uint8_t)(rgb1.rgbBlue&rgb2.rgbBlue);
+ rgbDest.rgbGreen = (uint8_t)(rgb1.rgbGreen&rgb2.rgbGreen);
+ rgbDest.rgbRed = (uint8_t)(rgb1.rgbRed&rgb2.rgbRed);
+ if (bEditAlpha) rgbDest.rgbReserved = (uint8_t)(rgb1.rgbReserved&rgb2.rgbReserved);
+ break;
+ case OpXor:
+ rgbDest.rgbBlue = (uint8_t)(rgb1.rgbBlue^rgb2.rgbBlue);
+ rgbDest.rgbGreen = (uint8_t)(rgb1.rgbGreen^rgb2.rgbGreen);
+ rgbDest.rgbRed = (uint8_t)(rgb1.rgbRed^rgb2.rgbRed);
+ if (bEditAlpha) rgbDest.rgbReserved = (uint8_t)(rgb1.rgbReserved^rgb2.rgbReserved);
+ break;
+ case OpOr:
+ rgbDest.rgbBlue = (uint8_t)(rgb1.rgbBlue|rgb2.rgbBlue);
+ rgbDest.rgbGreen = (uint8_t)(rgb1.rgbGreen|rgb2.rgbGreen);
+ rgbDest.rgbRed = (uint8_t)(rgb1.rgbRed|rgb2.rgbRed);
+ if (bEditAlpha) rgbDest.rgbReserved = (uint8_t)(rgb1.rgbReserved|rgb2.rgbReserved);
+ break;
+ case OpMask:
+ if(rgb2.rgbBlue==0 && rgb2.rgbGreen==0 && rgb2.rgbRed==0)
+ rgbDest = rgbBackgrnd1;
+ else
+ rgbDest = rgb1;
+ break;
+ case OpSrcCopy:
+ if(IsTransparent(lX,lY))
+ rgbDest = rgb2;
+ else // copy straight over
+ rgbDest = rgb1;
+ break;
+ case OpDstCopy:
+ if(imgsrc2.IsTransparent(lX+lXOffset,lY+lYOffset))
+ rgbDest = rgb1;
+ else // copy straight over
+ rgbDest = rgb2;
+ break;
+ case OpScreen:
+ {
+ uint8_t a,a1;
+
+ if (imgsrc2.IsTransparent(lX+lXOffset,lY+lYOffset)){
+ a=0;
+#if CXIMAGE_SUPPORT_ALPHA
+ } else if (imgsrc2.AlphaIsValid()){
+ a=imgsrc2.AlphaGet(lX+lXOffset,lY+lYOffset);
+ a =(uint8_t)((a*imgsrc2.info.nAlphaMax)/255);
+#endif //CXIMAGE_SUPPORT_ALPHA
+ } else {
+ a=255;
+ }
+
+ if (a==0){ //transparent
+ rgbDest = rgb1;
+ } else if (a==255){ //opaque
+ rgbDest = rgb2;
+ } else { //blend
+ a1 = (uint8_t)~a;
+ rgbDest.rgbBlue = (uint8_t)((rgb1.rgbBlue*a1+rgb2.rgbBlue*a)/255);
+ rgbDest.rgbGreen = (uint8_t)((rgb1.rgbGreen*a1+rgb2.rgbGreen*a)/255);
+ rgbDest.rgbRed = (uint8_t)((rgb1.rgbRed*a1+rgb2.rgbRed*a)/255);
+ }
+
+ if (bEditAlpha) rgbDest.rgbReserved = (uint8_t)((rgb1.rgbReserved*a)/255);
+ }
+ break;
+ case OpSrcBlend:
+ if(IsTransparent(lX,lY))
+ rgbDest = rgb2;
+ else
+ {
+ int32_t lBDiff = abs(rgb1.rgbBlue - rgbBackgrnd1.rgbBlue);
+ int32_t lGDiff = abs(rgb1.rgbGreen - rgbBackgrnd1.rgbGreen);
+ int32_t lRDiff = abs(rgb1.rgbRed - rgbBackgrnd1.rgbRed);
+
+ double lAverage = (lBDiff+lGDiff+lRDiff)/3;
+ double lThresh = 16;
+ double dLarge = lAverage/lThresh;
+ double dSmall = (lThresh-lAverage)/lThresh;
+ double dSmallAmt = dSmall*((double)rgb2.rgbBlue);
+
+ if( lAverage < lThresh+1){
+ rgbDest.rgbBlue = (uint8_t)max(0,min(255,(int32_t)(dLarge*((double)rgb1.rgbBlue) +
+ dSmallAmt)));
+ rgbDest.rgbGreen = (uint8_t)max(0,min(255,(int32_t)(dLarge*((double)rgb1.rgbGreen) +
+ dSmallAmt)));
+ rgbDest.rgbRed = (uint8_t)max(0,min(255,(int32_t)(dLarge*((double)rgb1.rgbRed) +
+ dSmallAmt)));
+ }
+ else
+ rgbDest = rgb1;
+ }
+ break;
+ case OpBlendAlpha: //[brunom]
+ if(rgb2.rgbReserved != 0)
+ {
+ // The lower value is almost transparent, or the overlying
+ // almost transparent can not directly overlying the value taken
+ if( (rgb1.rgbReserved < 5) || (rgb2.rgbReserved > 250) ){
+ rgbDest = rgb2;
+ } else {
+ // Alpha Blending with associative calculation merge
+ // (http://en.wikipedia.org/wiki/Alpha_compositing)
+ int32_t a0,a1,a2;
+ // Transparency of the superimposed image
+ a2 = rgb2.rgbReserved;
+ // Calculation transparency of the underlying image
+ a1 = (rgb1.rgbReserved * (255 - a2)) >> 8;
+ // total transparency of the new pixel
+ a0 = a2 + a1;
+ // New transparency assume (a0 == 0 is the restriction s.o. (range 5-250) intercepted)
+ if (bEditAlpha) rgbDest.rgbReserved = a0;
+ // each color channel to calculate
+ rgbDest.rgbBlue = (BYTE)((rgb2.rgbBlue * a2 + a1 * rgb1.rgbBlue )/a0);
+ rgbDest.rgbGreen = (BYTE)((rgb2.rgbGreen * a2 + a1 * rgb1.rgbGreen)/a0);
+ rgbDest.rgbRed = (BYTE)((rgb2.rgbRed * a2 + a1 * rgb1.rgbRed )/a0);
+ }
+ } else {
+ rgbDest = rgb1;
+ rgbDest.rgbReserved = 0;
+ }
+ break;
+ default:
+ return;
+ }
+ SetPixelColor(lX,lY,rgbDest,bEditAlpha);
+ }
+ }
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+// thanks to Kenneth Ballard
+void CxImage::MixFrom(CxImage & imagesrc2, int32_t lXOffset, int32_t lYOffset)
+{
+ int32_t width = imagesrc2.GetWidth();
+ int32_t height = imagesrc2.GetHeight();
+
+ int32_t x, y;
+
+ if (imagesrc2.IsTransparent()) {
+ for(x = 0; x < width; x++) {
+ for(y = 0; y < height; y++) {
+ if(!imagesrc2.IsTransparent(x,y)){
+ SetPixelColor(x + lXOffset, y + lYOffset, imagesrc2.BlindGetPixelColor(x, y));
+ }
+ }
+ }
+ } else { //no transparency so just set it <Matt>
+ for(x = 0; x < width; x++) {
+ for(y = 0; y < height; y++) {
+ SetPixelColor(x + lXOffset, y + lYOffset, imagesrc2.BlindGetPixelColor(x, y));
+ }
+ }
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Adjusts separately the red, green, and blue values in the image.
+ * \param r, g, b: can be from -255 to +255.
+ * \return true if everything is ok
+ */
+bool CxImage::ShiftRGB(int32_t r, int32_t g, int32_t b)
+{
+ if (!pDib) return false;
+ RGBQUAD color;
+ if (head.biClrUsed==0){
+
+ int32_t xmin,xmax,ymin,ymax;
+ if (pSelection){
+ xmin = info.rSelectionBox.left; xmax = info.rSelectionBox.right;
+ ymin = info.rSelectionBox.bottom; ymax = info.rSelectionBox.top;
+ } else {
+ xmin = ymin = 0;
+ xmax = head.biWidth; ymax=head.biHeight;
+ }
+
+ for(int32_t y=ymin; y<ymax; y++){
+ for(int32_t x=xmin; x<xmax; x++){
+#if CXIMAGE_SUPPORT_SELECTION
+ if (BlindSelectionIsInside(x,y))
+#endif //CXIMAGE_SUPPORT_SELECTION
+ {
+ color = BlindGetPixelColor(x,y);
+ color.rgbRed = (uint8_t)max(0,min(255,(int32_t)(color.rgbRed + r)));
+ color.rgbGreen = (uint8_t)max(0,min(255,(int32_t)(color.rgbGreen + g)));
+ color.rgbBlue = (uint8_t)max(0,min(255,(int32_t)(color.rgbBlue + b)));
+ BlindSetPixelColor(x,y,color);
+ }
+ }
+ }
+ } else {
+ for(uint32_t j=0; j<head.biClrUsed; j++){
+ color = GetPaletteColor((uint8_t)j);
+ color.rgbRed = (uint8_t)max(0,min(255,(int32_t)(color.rgbRed + r)));
+ color.rgbGreen = (uint8_t)max(0,min(255,(int32_t)(color.rgbGreen + g)));
+ color.rgbBlue = (uint8_t)max(0,min(255,(int32_t)(color.rgbBlue + b)));
+ SetPaletteColor((uint8_t)j,color);
+ }
+ }
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Adjusts the color balance of the image
+ * \param gamma can be from 0.1 to 5.
+ * \return true if everything is ok
+ * \sa GammaRGB
+ */
+bool CxImage::Gamma(float gamma)
+{
+ if (!pDib) return false;
+
+ if (gamma <= 0.0f) return false;
+
+ double dinvgamma = 1/gamma;
+ double dMax = pow(255.0, dinvgamma) / 255.0;
+
+ uint8_t cTable[256]; //<nipper>
+ for (int32_t i=0;i<256;i++) {
+ cTable[i] = (uint8_t)max(0,min(255,(int32_t)( pow((double)i, dinvgamma) / dMax)));
+ }
+
+ return Lut(cTable);
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Adjusts the color balance indipendent for each color channel
+ * \param gammaR, gammaG, gammaB can be from 0.1 to 5.
+ * \return true if everything is ok
+ * \sa Gamma
+ */
+bool CxImage::GammaRGB(float gammaR, float gammaG, float gammaB)
+{
+ if (!pDib) return false;
+
+ if (gammaR <= 0.0f) return false;
+ if (gammaG <= 0.0f) return false;
+ if (gammaB <= 0.0f) return false;
+
+ double dinvgamma, dMax;
+ int32_t i;
+
+ dinvgamma = 1/gammaR;
+ dMax = pow(255.0, dinvgamma) / 255.0;
+ uint8_t cTableR[256];
+ for (i=0;i<256;i++) {
+ cTableR[i] = (uint8_t)max(0,min(255,(int32_t)( pow((double)i, dinvgamma) / dMax)));
+ }
+
+ dinvgamma = 1/gammaG;
+ dMax = pow(255.0, dinvgamma) / 255.0;
+ uint8_t cTableG[256];
+ for (i=0;i<256;i++) {
+ cTableG[i] = (uint8_t)max(0,min(255,(int32_t)( pow((double)i, dinvgamma) / dMax)));
+ }
+
+ dinvgamma = 1/gammaB;
+ dMax = pow(255.0, dinvgamma) / 255.0;
+ uint8_t cTableB[256];
+ for (i=0;i<256;i++) {
+ cTableB[i] = (uint8_t)max(0,min(255,(int32_t)( pow((double)i, dinvgamma) / dMax)));
+ }
+
+ return Lut(cTableR, cTableG, cTableB);
+}
+////////////////////////////////////////////////////////////////////////////////
+
+//#if !defined (_WIN32_WCE)
+/**
+ * Adjusts the intensity of each pixel to the median intensity of its surrounding pixels.
+ * \param Ksize: size of the kernel.
+ * \return true if everything is ok
+ */
+bool CxImage::Median(int32_t Ksize)
+{
+ if (!pDib) return false;
+
+ int32_t k2 = Ksize/2;
+ int32_t kmax= Ksize-k2;
+ int32_t i,j,k;
+
+ RGBQUAD* kernel = (RGBQUAD*)malloc(Ksize*Ksize*sizeof(RGBQUAD));
+
+ CxImage tmp(*this);
+ if (!tmp.IsValid()){
+ strcpy(info.szLastError,tmp.GetLastError());
+ return false;
+ }
+
+ int32_t xmin,xmax,ymin,ymax;
+ if (pSelection){
+ xmin = info.rSelectionBox.left; xmax = info.rSelectionBox.right;
+ ymin = info.rSelectionBox.bottom; ymax = info.rSelectionBox.top;
+ } else {
+ xmin = ymin = 0;
+ xmax = head.biWidth; ymax=head.biHeight;
+ }
+
+ for(int32_t y=ymin; y<ymax; y++){
+ info.nProgress = (int32_t)(100*(y-ymin)/(ymax-ymin));
+ if (info.nEscape) break;
+ for(int32_t x=xmin; x<xmax; x++){
+#if CXIMAGE_SUPPORT_SELECTION
+ if (BlindSelectionIsInside(x,y))
+#endif //CXIMAGE_SUPPORT_SELECTION
+ {
+ for(j=-k2, i=0;j<kmax;j++)
+ for(k=-k2;k<kmax;k++)
+ if (IsInside(x+j,y+k))
+ kernel[i++]=BlindGetPixelColor(x+j,y+k);
+
+ qsort(kernel, i, sizeof(RGBQUAD), CompareColors);
+ tmp.SetPixelColor(x,y,kernel[i/2]);
+ }
+ }
+ }
+ free(kernel);
+ Transfer(tmp);
+ return true;
+}
+//#endif //_WIN32_WCE
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Adds an uniform noise to the image
+ * \param level: can be from 0 (no noise) to 255 (lot of noise).
+ * \return true if everything is ok
+ */
+bool CxImage::Noise(int32_t level)
+{
+ if (!pDib) return false;
+ RGBQUAD color;
+
+ int32_t xmin,xmax,ymin,ymax,n;
+ if (pSelection){
+ xmin = info.rSelectionBox.left; xmax = info.rSelectionBox.right;
+ ymin = info.rSelectionBox.bottom; ymax = info.rSelectionBox.top;
+ } else {
+ xmin = ymin = 0;
+ xmax = head.biWidth; ymax=head.biHeight;
+ }
+
+ for(int32_t y=ymin; y<ymax; y++){
+ info.nProgress = (int32_t)(100*(y-ymin)/(ymax-ymin)); //<zhanghk><Anatoly Ivasyuk>
+ for(int32_t x=xmin; x<xmax; x++){
+#if CXIMAGE_SUPPORT_SELECTION
+ if (BlindSelectionIsInside(x,y))
+#endif //CXIMAGE_SUPPORT_SELECTION
+ {
+ color = BlindGetPixelColor(x,y);
+ n=(int32_t)((rand()/(float)RAND_MAX - 0.5)*level);
+ color.rgbRed = (uint8_t)max(0,min(255,(int32_t)(color.rgbRed + n)));
+ n=(int32_t)((rand()/(float)RAND_MAX - 0.5)*level);
+ color.rgbGreen = (uint8_t)max(0,min(255,(int32_t)(color.rgbGreen + n)));
+ n=(int32_t)((rand()/(float)RAND_MAX - 0.5)*level);
+ color.rgbBlue = (uint8_t)max(0,min(255,(int32_t)(color.rgbBlue + n)));
+ BlindSetPixelColor(x,y,color);
+ }
+ }
+ }
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Computes the bidimensional FFT or DFT of the image.
+ * - The images are processed as grayscale
+ * - If the dimensions of the image are a power of, 2 the FFT is performed automatically.
+ * - If dstReal and/or dstImag are NULL, the resulting images replaces the original(s).
+ * - Note: with 8 bits there is a HUGE loss in the dynamics. The function tries
+ * to keep an acceptable SNR, but 8bit = 48dB...
+ *
+ * \param srcReal, srcImag: source images: One can be NULL, but not both
+ * \param dstReal, dstImag: destination images. Can be NULL.
+ * \param direction: 1 = forward, -1 = inverse.
+ * \param bForceFFT: if true, the images are resampled to make the dimensions a power of 2.
+ * \param bMagnitude: if true, the real part returns the magnitude, the imaginary part returns the phase
+ * \return true if everything is ok
+ */
+bool CxImage::FFT2(CxImage* srcReal, CxImage* srcImag, CxImage* dstReal, CxImage* dstImag,
+ int32_t direction, bool bForceFFT, bool bMagnitude)
+{
+ //check if there is something to convert
+ if (srcReal==NULL && srcImag==NULL) return false;
+
+ int32_t w,h;
+ //get width and height
+ if (srcReal) {
+ w=srcReal->GetWidth();
+ h=srcReal->GetHeight();
+ } else {
+ w=srcImag->GetWidth();
+ h=srcImag->GetHeight();
+ }
+
+ bool bXpow2 = IsPowerof2(w);
+ bool bYpow2 = IsPowerof2(h);
+ //if bForceFFT, width AND height must be powers of 2
+ if (bForceFFT && !(bXpow2 && bYpow2)) {
+ int32_t i;
+
+ i=0;
+ while((1<<i)<w) i++;
+ w=1<<i;
+ bXpow2=true;
+
+ i=0;
+ while((1<<i)<h) i++;
+ h=1<<i;
+ bYpow2=true;
+ }
+
+ // I/O images for FFT
+ CxImage *tmpReal,*tmpImag;
+
+ // select output
+ tmpReal = (dstReal) ? dstReal : srcReal;
+ tmpImag = (dstImag) ? dstImag : srcImag;
+
+ // src!=dst -> copy the image
+ if (srcReal && dstReal) tmpReal->Copy(*srcReal,true,false,false);
+ if (srcImag && dstImag) tmpImag->Copy(*srcImag,true,false,false);
+
+ // dst&&src are empty -> create new one, else turn to GrayScale
+ if (srcReal==0 && dstReal==0){
+ tmpReal = new CxImage(w,h,8);
+ tmpReal->Clear(0);
+ tmpReal->SetGrayPalette();
+ } else {
+ if (!tmpReal->IsGrayScale()) tmpReal->GrayScale();
+ }
+ if (srcImag==0 && dstImag==0){
+ tmpImag = new CxImage(w,h,8);
+ tmpImag->Clear(0);
+ tmpImag->SetGrayPalette();
+ } else {
+ if (!tmpImag->IsGrayScale()) tmpImag->GrayScale();
+ }
+
+ if (!(tmpReal->IsValid() && tmpImag->IsValid())){
+ if (srcReal==0 && dstReal==0) delete tmpReal;
+ if (srcImag==0 && dstImag==0) delete tmpImag;
+ return false;
+ }
+
+ //resample for FFT, if necessary
+ tmpReal->Resample(w,h,0);
+ tmpImag->Resample(w,h,0);
+
+ //ok, here we have 2 (w x h), grayscale images ready for a FFT
+
+ double* real;
+ double* imag;
+ int32_t j,k,m;
+
+ _complex **grid;
+ //double mean = tmpReal->Mean();
+ /* Allocate memory for the grid */
+ grid = (_complex **)malloc(w * sizeof(_complex));
+ for (k=0;k<w;k++) {
+ grid[k] = (_complex *)malloc(h * sizeof(_complex));
+ }
+ for (j=0;j<h;j++) {
+ for (k=0;k<w;k++) {
+ grid[k][j].x = tmpReal->GetPixelIndex(k,j)-128;
+ grid[k][j].y = tmpImag->GetPixelIndex(k,j)-128;
+ }
+ }
+
+ //DFT buffers
+ double *real2,*imag2;
+ real2 = (double*)malloc(max(w,h) * sizeof(double));
+ imag2 = (double*)malloc(max(w,h) * sizeof(double));
+
+ /* Transform the rows */
+ real = (double *)malloc(w * sizeof(double));
+ imag = (double *)malloc(w * sizeof(double));
+
+ m=0;
+ while((1<<m)<w) m++;
+
+ for (j=0;j<h;j++) {
+ for (k=0;k<w;k++) {
+ real[k] = grid[k][j].x;
+ imag[k] = grid[k][j].y;
+ }
+
+ if (bXpow2) FFT(direction,m,real,imag);
+ else DFT(direction,w,real,imag,real2,imag2);
+
+ for (k=0;k<w;k++) {
+ grid[k][j].x = real[k];
+ grid[k][j].y = imag[k];
+ }
+ }
+ free(real);
+ free(imag);
+
+ /* Transform the columns */
+ real = (double *)malloc(h * sizeof(double));
+ imag = (double *)malloc(h * sizeof(double));
+
+ m=0;
+ while((1<<m)<h) m++;
+
+ for (k=0;k<w;k++) {
+ for (j=0;j<h;j++) {
+ real[j] = grid[k][j].x;
+ imag[j] = grid[k][j].y;
+ }
+
+ if (bYpow2) FFT(direction,m,real,imag);
+ else DFT(direction,h,real,imag,real2,imag2);
+
+ for (j=0;j<h;j++) {
+ grid[k][j].x = real[j];
+ grid[k][j].y = imag[j];
+ }
+ }
+ free(real);
+ free(imag);
+
+ free(real2);
+ free(imag2);
+
+ /* converting from double to byte, there is a HUGE loss in the dynamics
+ "nn" tries to keep an acceptable SNR, but 8bit=48dB: don't ask more */
+ double nn=pow((double)2,(double)log((double)max(w,h))/(double)log((double)2)-4);
+ //reversed gain for reversed transform
+ if (direction==-1) nn=1/nn;
+ //bMagnitude : just to see it on the screen
+ if (bMagnitude) nn*=4;
+
+ for (j=0;j<h;j++) {
+ for (k=0;k<w;k++) {
+ if (bMagnitude){
+ tmpReal->SetPixelIndex(k,j,(uint8_t)max(0,min(255,(nn*(3+log(_cabs(grid[k][j])))))));
+ if (grid[k][j].x==0){
+ tmpImag->SetPixelIndex(k,j,(uint8_t)max(0,min(255,(128+(atan(grid[k][j].y/0.0000000001)*nn)))));
+ } else {
+ tmpImag->SetPixelIndex(k,j,(uint8_t)max(0,min(255,(128+(atan(grid[k][j].y/grid[k][j].x)*nn)))));
+ }
+ } else {
+ tmpReal->SetPixelIndex(k,j,(uint8_t)max(0,min(255,(128 + grid[k][j].x*nn))));
+ tmpImag->SetPixelIndex(k,j,(uint8_t)max(0,min(255,(128 + grid[k][j].y*nn))));
+ }
+ }
+ }
+
+ for (k=0;k<w;k++) free (grid[k]);
+ free (grid);
+
+ if (srcReal==0 && dstReal==0) delete tmpReal;
+ if (srcImag==0 && dstImag==0) delete tmpImag;
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+bool CxImage::IsPowerof2(int32_t x)
+{
+ int32_t i=0;
+ while ((1<<i)<x) i++;
+ if (x==(1<<i)) return true;
+ return false;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ This computes an in-place complex-to-complex FFT
+ x and y are the real and imaginary arrays of n=2^m points.
+ o(n)=n*log2(n)
+ dir = 1 gives forward transform
+ dir = -1 gives reverse transform
+ Written by Paul Bourke, July 1998
+ FFT algorithm by Cooley and Tukey, 1965
+*/
+bool CxImage::FFT(int32_t dir,int32_t m,double *x,double *y)
+{
+ int32_t nn,i,i1,j,k,i2,l,l1,l2;
+ double c1,c2,tx,ty,t1,t2,u1,u2,z;
+
+ /* Calculate the number of points */
+ nn = 1<<m;
+
+ /* Do the bit reversal */
+ i2 = nn >> 1;
+ j = 0;
+ for (i=0;i<nn-1;i++) {
+ if (i < j) {
+ tx = x[i];
+ ty = y[i];
+ x[i] = x[j];
+ y[i] = y[j];
+ x[j] = tx;
+ y[j] = ty;
+ }
+ k = i2;
+ while (k <= j) {
+ j -= k;
+ k >>= 1;
+ }
+ j += k;
+ }
+
+ /* Compute the FFT */
+ c1 = -1.0;
+ c2 = 0.0;
+ l2 = 1;
+ for (l=0;l<m;l++) {
+ l1 = l2;
+ l2 <<= 1;
+ u1 = 1.0;
+ u2 = 0.0;
+ for (j=0;j<l1;j++) {
+ for (i=j;i<nn;i+=l2) {
+ i1 = i + l1;
+ t1 = u1 * x[i1] - u2 * y[i1];
+ t2 = u1 * y[i1] + u2 * x[i1];
+ x[i1] = x[i] - t1;
+ y[i1] = y[i] - t2;
+ x[i] += t1;
+ y[i] += t2;
+ }
+ z = u1 * c1 - u2 * c2;
+ u2 = u1 * c2 + u2 * c1;
+ u1 = z;
+ }
+ c2 = sqrt((1.0 - c1) / 2.0);
+ if (dir == 1)
+ c2 = -c2;
+ c1 = sqrt((1.0 + c1) / 2.0);
+ }
+
+ /* Scaling for forward transform */
+ if (dir == 1) {
+ for (i=0;i<nn;i++) {
+ x[i] /= (double)nn;
+ y[i] /= (double)nn;
+ }
+ }
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ Direct fourier transform o(n)=n^2
+ Written by Paul Bourke, July 1998
+*/
+bool CxImage::DFT(int32_t dir,int32_t m,double *x1,double *y1,double *x2,double *y2)
+{
+ int32_t i,k;
+ double arg;
+ double cosarg,sinarg;
+
+ for (i=0;i<m;i++) {
+ x2[i] = 0;
+ y2[i] = 0;
+ arg = - dir * 2.0 * PI * i / (double)m;
+ for (k=0;k<m;k++) {
+ cosarg = cos(k * arg);
+ sinarg = sin(k * arg);
+ x2[i] += (x1[k] * cosarg - y1[k] * sinarg);
+ y2[i] += (x1[k] * sinarg + y1[k] * cosarg);
+ }
+ }
+
+ /* Copy the data back */
+ if (dir == 1) {
+ for (i=0;i<m;i++) {
+ x1[i] = x2[i] / m;
+ y1[i] = y2[i] / m;
+ }
+ } else {
+ for (i=0;i<m;i++) {
+ x1[i] = x2[i];
+ y1[i] = y2[i];
+ }
+ }
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Combines different color components into a single image
+ * \param r,g,b: color channels
+ * \param a: alpha layer, can be NULL
+ * \param colorspace: 0 = RGB, 1 = HSL, 2 = YUV, 3 = YIQ, 4 = XYZ
+ * \return true if everything is ok
+ */
+bool CxImage::Combine(CxImage* r,CxImage* g,CxImage* b,CxImage* a, int32_t colorspace)
+{
+ if (r==0 || g==0 || b==0) return false;
+
+ int32_t w = r->GetWidth();
+ int32_t h = r->GetHeight();
+
+ Create(w,h,24);
+
+ g->Resample(w,h);
+ b->Resample(w,h);
+
+ if (a) {
+ a->Resample(w,h);
+#if CXIMAGE_SUPPORT_ALPHA
+ AlphaCreate();
+#endif //CXIMAGE_SUPPORT_ALPHA
+ }
+
+ RGBQUAD c;
+ for (int32_t y=0;y<h;y++){
+ info.nProgress = (int32_t)(100*y/h); //<Anatoly Ivasyuk>
+ for (int32_t x=0;x<w;x++){
+ c.rgbRed=r->GetPixelIndex(x,y);
+ c.rgbGreen=g->GetPixelIndex(x,y);
+ c.rgbBlue=b->GetPixelIndex(x,y);
+ switch (colorspace){
+ case 1:
+ BlindSetPixelColor(x,y,HSLtoRGB(c));
+ break;
+ case 2:
+ BlindSetPixelColor(x,y,YUVtoRGB(c));
+ break;
+ case 3:
+ BlindSetPixelColor(x,y,YIQtoRGB(c));
+ break;
+ case 4:
+ BlindSetPixelColor(x,y,XYZtoRGB(c));
+ break;
+ default:
+ BlindSetPixelColor(x,y,c);
+ }
+#if CXIMAGE_SUPPORT_ALPHA
+ if (a) AlphaSet(x,y,a->GetPixelIndex(x,y));
+#endif //CXIMAGE_SUPPORT_ALPHA
+ }
+ }
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Smart blurring to remove small defects, dithering or artifacts.
+ * \param radius: normally between 0.01 and 0.5
+ * \param niterations: should be trimmed with radius, to avoid blurring should be (radius*niterations)<1
+ * \param colorspace: 0 = RGB, 1 = HSL, 2 = YUV, 3 = YIQ, 4 = XYZ
+ * \return true if everything is ok
+ */
+bool CxImage::Repair(float radius, int32_t niterations, int32_t colorspace)
+{
+ if (!IsValid()) return false;
+
+ int32_t w = GetWidth();
+ int32_t h = GetHeight();
+
+ CxImage r,g,b;
+
+ r.Create(w,h,8);
+ g.Create(w,h,8);
+ b.Create(w,h,8);
+
+ switch (colorspace){
+ case 1:
+ SplitHSL(&r,&g,&b);
+ break;
+ case 2:
+ SplitYUV(&r,&g,&b);
+ break;
+ case 3:
+ SplitYIQ(&r,&g,&b);
+ break;
+ case 4:
+ SplitXYZ(&r,&g,&b);
+ break;
+ default:
+ SplitRGB(&r,&g,&b);
+ }
+
+ for (int32_t i=0; i<niterations; i++){
+ RepairChannel(&r,radius);
+ RepairChannel(&g,radius);
+ RepairChannel(&b,radius);
+ }
+
+ CxImage* a=NULL;
+#if CXIMAGE_SUPPORT_ALPHA
+ if (AlphaIsValid()){
+ a = new CxImage();
+ AlphaSplit(a);
+ }
+#endif
+
+ Combine(&r,&g,&b,a,colorspace);
+
+ delete a;
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+bool CxImage::RepairChannel(CxImage *ch, float radius)
+{
+ if (ch==NULL) return false;
+
+ CxImage tmp(*ch);
+ if (!tmp.IsValid()){
+ strcpy(info.szLastError,tmp.GetLastError());
+ return false;
+ }
+
+ int32_t w = ch->GetWidth()-1;
+ int32_t h = ch->GetHeight()-1;
+
+ double correction,ix,iy,ixx,ixy,iyy;
+ int32_t x,y,xy0,xp1,xm1,yp1,ym1;
+
+ for(x=1; x<w; x++){
+ for(y=1; y<h; y++){
+
+ xy0 = ch->BlindGetPixelIndex(x,y);
+ xm1 = ch->BlindGetPixelIndex(x-1,y);
+ xp1 = ch->BlindGetPixelIndex(x+1,y);
+ ym1 = ch->BlindGetPixelIndex(x,y-1);
+ yp1 = ch->BlindGetPixelIndex(x,y+1);
+
+ ix= (xp1-xm1)/2.0;
+ iy= (yp1-ym1)/2.0;
+ ixx= xp1 - 2.0 * xy0 + xm1;
+ iyy= yp1 - 2.0 * xy0 + ym1;
+ ixy=(ch->BlindGetPixelIndex(x+1,y+1) + ch->BlindGetPixelIndex(x-1,y-1) -
+ ch->BlindGetPixelIndex(x-1,y+1) - ch->BlindGetPixelIndex(x+1,y-1))/4.0;
+
+ correction = ((1.0+iy*iy)*ixx - ix*iy*ixy + (1.0+ix*ix)*iyy)/(1.0+ix*ix+iy*iy);
+
+ tmp.BlindSetPixelIndex(x,y,(uint8_t)min(255,max(0,(xy0 + radius * correction + 0.5))));
+ }
+ }
+
+ for (x=0;x<=w;x++){
+ for(y=0; y<=h; y+=h){
+ xy0 = ch->BlindGetPixelIndex(x,y);
+ xm1 = ch->GetPixelIndex(x-1,y);
+ xp1 = ch->GetPixelIndex(x+1,y);
+ ym1 = ch->GetPixelIndex(x,y-1);
+ yp1 = ch->GetPixelIndex(x,y+1);
+
+ ix= (xp1-xm1)/2.0;
+ iy= (yp1-ym1)/2.0;
+ ixx= xp1 - 2.0 * xy0 + xm1;
+ iyy= yp1 - 2.0 * xy0 + ym1;
+ ixy=(ch->GetPixelIndex(x+1,y+1) + ch->GetPixelIndex(x-1,y-1) -
+ ch->GetPixelIndex(x-1,y+1) - ch->GetPixelIndex(x+1,y-1))/4.0;
+
+ correction = ((1.0+iy*iy)*ixx - ix*iy*ixy + (1.0+ix*ix)*iyy)/(1.0+ix*ix+iy*iy);
+
+ tmp.BlindSetPixelIndex(x,y,(uint8_t)min(255,max(0,(xy0 + radius * correction + 0.5))));
+ }
+ }
+ for (x=0;x<=w;x+=w){
+ for (y=0;y<=h;y++){
+ xy0 = ch->BlindGetPixelIndex(x,y);
+ xm1 = ch->GetPixelIndex(x-1,y);
+ xp1 = ch->GetPixelIndex(x+1,y);
+ ym1 = ch->GetPixelIndex(x,y-1);
+ yp1 = ch->GetPixelIndex(x,y+1);
+
+ ix= (xp1-xm1)/2.0;
+ iy= (yp1-ym1)/2.0;
+ ixx= xp1 - 2.0 * xy0 + xm1;
+ iyy= yp1 - 2.0 * xy0 + ym1;
+ ixy=(ch->GetPixelIndex(x+1,y+1) + ch->GetPixelIndex(x-1,y-1) -
+ ch->GetPixelIndex(x-1,y+1) - ch->GetPixelIndex(x+1,y-1))/4.0;
+
+ correction = ((1.0+iy*iy)*ixx - ix*iy*ixy + (1.0+ix*ix)*iyy)/(1.0+ix*ix+iy*iy);
+
+ tmp.BlindSetPixelIndex(x,y,(uint8_t)min(255,max(0,(xy0 + radius * correction + 0.5))));
+ }
+ }
+
+ ch->Transfer(tmp);
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Enhance the variations between adjacent pixels.
+ * Similar results can be achieved using Filter(),
+ * but the algorithms are different both in Edge() and in Contour().
+ * \return true if everything is ok
+ */
+bool CxImage::Contour()
+{
+ if (!pDib) return false;
+
+ int32_t Ksize = 3;
+ int32_t k2 = Ksize/2;
+ int32_t kmax= Ksize-k2;
+ int32_t i,j,k;
+ uint8_t maxr,maxg,maxb;
+ RGBQUAD pix1,pix2;
+
+ CxImage tmp(*this);
+ if (!tmp.IsValid()){
+ strcpy(info.szLastError,tmp.GetLastError());
+ return false;
+ }
+
+ int32_t xmin,xmax,ymin,ymax;
+ if (pSelection){
+ xmin = info.rSelectionBox.left; xmax = info.rSelectionBox.right;
+ ymin = info.rSelectionBox.bottom; ymax = info.rSelectionBox.top;
+ } else {
+ xmin = ymin = 0;
+ xmax = head.biWidth; ymax=head.biHeight;
+ }
+
+ for(int32_t y=ymin; y<ymax; y++){
+ info.nProgress = (int32_t)(100*(y-ymin)/(ymax-ymin));
+ if (info.nEscape) break;
+ for(int32_t x=xmin; x<xmax; x++){
+#if CXIMAGE_SUPPORT_SELECTION
+ if (BlindSelectionIsInside(x,y))
+#endif //CXIMAGE_SUPPORT_SELECTION
+ {
+ pix1 = BlindGetPixelColor(x,y);
+ maxr=maxg=maxb=0;
+ for(j=-k2, i=0;j<kmax;j++){
+ for(k=-k2;k<kmax;k++, i++){
+ if (!IsInside(x+j,y+k)) continue;
+ pix2 = BlindGetPixelColor(x+j,y+k);
+ if ((pix2.rgbBlue-pix1.rgbBlue)>maxb) maxb = pix2.rgbBlue;
+ if ((pix2.rgbGreen-pix1.rgbGreen)>maxg) maxg = pix2.rgbGreen;
+ if ((pix2.rgbRed-pix1.rgbRed)>maxr) maxr = pix2.rgbRed;
+ }
+ }
+ pix1.rgbBlue=(uint8_t)(255-maxb);
+ pix1.rgbGreen=(uint8_t)(255-maxg);
+ pix1.rgbRed=(uint8_t)(255-maxr);
+ tmp.BlindSetPixelColor(x,y,pix1);
+ }
+ }
+ }
+ Transfer(tmp);
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Adds a random offset to each pixel in the image
+ * \param radius: maximum pixel displacement
+ * \return true if everything is ok
+ */
+bool CxImage::Jitter(int32_t radius)
+{
+ if (!pDib) return false;
+
+ int32_t nx,ny;
+
+ CxImage tmp(*this);
+ if (!tmp.IsValid()){
+ strcpy(info.szLastError,tmp.GetLastError());
+ return false;
+ }
+
+ int32_t xmin,xmax,ymin,ymax;
+ if (pSelection){
+ xmin = info.rSelectionBox.left; xmax = info.rSelectionBox.right;
+ ymin = info.rSelectionBox.bottom; ymax = info.rSelectionBox.top;
+ } else {
+ xmin = ymin = 0;
+ xmax = head.biWidth; ymax=head.biHeight;
+ }
+
+ for(int32_t y=ymin; y<ymax; y++){
+ info.nProgress = (int32_t)(100*(y-ymin)/(ymax-ymin));
+ if (info.nEscape) break;
+ for(int32_t x=xmin; x<xmax; x++){
+#if CXIMAGE_SUPPORT_SELECTION
+ if (BlindSelectionIsInside(x,y))
+#endif //CXIMAGE_SUPPORT_SELECTION
+ {
+ nx=x+(int32_t)((rand()/(float)RAND_MAX - 0.5)*(radius*2));
+ ny=y+(int32_t)((rand()/(float)RAND_MAX - 0.5)*(radius*2));
+ if (!IsInside(nx,ny)) {
+ nx=x;
+ ny=y;
+ }
+ if (head.biClrUsed==0){
+ tmp.BlindSetPixelColor(x,y,BlindGetPixelColor(nx,ny));
+ } else {
+ tmp.BlindSetPixelIndex(x,y,BlindGetPixelIndex(nx,ny));
+ }
+#if CXIMAGE_SUPPORT_ALPHA
+ tmp.AlphaSet(x,y,AlphaGet(nx,ny));
+#endif //CXIMAGE_SUPPORT_ALPHA
+ }
+ }
+ }
+ Transfer(tmp);
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * generates a 1-D convolution matrix to be used for each pass of
+ * a two-pass gaussian blur. Returns the length of the matrix.
+ * \author [nipper]
+ */
+int32_t CxImage::gen_convolve_matrix (float radius, float **cmatrix_p)
+{
+ int32_t matrix_length;
+ int32_t matrix_midpoint;
+ float* cmatrix;
+ int32_t i,j;
+ float std_dev;
+ float sum;
+
+ /* we want to generate a matrix that goes out a certain radius
+ * from the center, so we have to go out ceil(rad-0.5) pixels,
+ * inlcuding the center pixel. Of course, that's only in one direction,
+ * so we have to go the same amount in the other direction, but not count
+ * the center pixel again. So we double the previous result and subtract
+ * one.
+ * The radius parameter that is passed to this function is used as
+ * the standard deviation, and the radius of effect is the
+ * standard deviation * 2. It's a little confusing.
+ * <DP> modified scaling, so that matrix_lenght = 1+2*radius parameter
+ */
+ radius = (float)fabs(0.5*radius) + 0.25f;
+
+ std_dev = radius;
+ radius = std_dev * 2;
+
+ /* go out 'radius' in each direction */
+ matrix_length = int32_t (2 * ceil(radius-0.5) + 1);
+ if (matrix_length <= 0) matrix_length = 1;
+ matrix_midpoint = matrix_length/2 + 1;
+ *cmatrix_p = new float[matrix_length];
+ cmatrix = *cmatrix_p;
+
+ /* Now we fill the matrix by doing a numeric integration approximation
+ * from -2*std_dev to 2*std_dev, sampling 50 points per pixel.
+ * We do the bottom half, mirror it to the top half, then compute the
+ * center point. Otherwise asymmetric quantization errors will occur.
+ * The formula to integrate is e^-(x^2/2s^2).
+ */
+
+ /* first we do the top (right) half of matrix */
+ for (i = matrix_length/2 + 1; i < matrix_length; i++)
+ {
+ float base_x = i - (float)floor((float)(matrix_length/2)) - 0.5f;
+ sum = 0;
+ for (j = 1; j <= 50; j++)
+ {
+ if ( base_x+0.02*j <= radius )
+ sum += (float)exp (-(base_x+0.02*j)*(base_x+0.02*j) /
+ (2*std_dev*std_dev));
+ }
+ cmatrix[i] = sum/50;
+ }
+
+ /* mirror the thing to the bottom half */
+ for (i=0; i<=matrix_length/2; i++) {
+ cmatrix[i] = cmatrix[matrix_length-1-i];
+ }
+
+ /* find center val -- calculate an odd number of quanta to make it symmetric,
+ * even if the center point is weighted slightly higher than others. */
+ sum = 0;
+ for (j=0; j<=50; j++)
+ {
+ sum += (float)exp (-(0.5+0.02*j)*(0.5+0.02*j) /
+ (2*std_dev*std_dev));
+ }
+ cmatrix[matrix_length/2] = sum/51;
+
+ /* normalize the distribution by scaling the total sum to one */
+ sum=0;
+ for (i=0; i<matrix_length; i++) sum += cmatrix[i];
+ for (i=0; i<matrix_length; i++) cmatrix[i] = cmatrix[i] / sum;
+
+ return matrix_length;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * generates a lookup table for every possible product of 0-255 and
+ * each value in the convolution matrix. The returned array is
+ * indexed first by matrix position, then by input multiplicand (?)
+ * value.
+ * \author [nipper]
+ */
+float* CxImage::gen_lookup_table (float *cmatrix, int32_t cmatrix_length)
+{
+ float* lookup_table = new float[cmatrix_length * 256];
+ float* lookup_table_p = lookup_table;
+ float* cmatrix_p = cmatrix;
+
+ for (int32_t i=0; i<cmatrix_length; i++)
+ {
+ for (int32_t j=0; j<256; j++)
+ {
+ *(lookup_table_p++) = *cmatrix_p * (float)j;
+ }
+ cmatrix_p++;
+ }
+
+ return lookup_table;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * this function is written as if it is blurring a column at a time,
+ * even though it can operate on rows, too. There is no difference
+ * in the processing of the lines, at least to the blur_line function.
+ * \author [nipper]
+ */
+void CxImage::blur_line (float *ctable, float *cmatrix, int32_t cmatrix_length, uint8_t* cur_col, uint8_t* dest_col, int32_t y, int32_t bytes)
+{
+ float scale;
+ float sum;
+ int32_t i=0, j=0;
+ int32_t row;
+ int32_t cmatrix_middle = cmatrix_length/2;
+
+ float *cmatrix_p;
+ uint8_t *cur_col_p;
+ uint8_t *cur_col_p1;
+ uint8_t *dest_col_p;
+ float *ctable_p;
+
+ /* this first block is the same as the non-optimized version --
+ * it is only used for very small pictures, so speed isn't a
+ * big concern.
+ */
+ if (cmatrix_length > y)
+ {
+ for (row = 0; row < y ; row++)
+ {
+ scale=0;
+ /* find the scale factor */
+ for (j = 0; j < y ; j++)
+ {
+ /* if the index is in bounds, add it to the scale counter */
+ if ((j + cmatrix_middle - row >= 0) &&
+ (j + cmatrix_middle - row < cmatrix_length))
+ scale += cmatrix[j + cmatrix_middle - row];
+ }
+ for (i = 0; i<bytes; i++)
+ {
+ sum = 0;
+ for (j = 0; j < y; j++)
+ {
+ if ((j >= row - cmatrix_middle) &&
+ (j <= row + cmatrix_middle))
+ sum += cur_col[j*bytes + i] * cmatrix[j];
+ }
+ dest_col[row*bytes + i] = (uint8_t)(0.5f + sum / scale);
+ }
+ }
+ }
+ else
+ {
+ /* for the edge condition, we only use available info and scale to one */
+ for (row = 0; row < cmatrix_middle; row++)
+ {
+ /* find scale factor */
+ scale=0;
+ for (j = cmatrix_middle - row; j<cmatrix_length; j++)
+ scale += cmatrix[j];
+ for (i = 0; i<bytes; i++)
+ {
+ sum = 0;
+ for (j = cmatrix_middle - row; j<cmatrix_length; j++)
+ {
+ sum += cur_col[(row + j-cmatrix_middle)*bytes + i] * cmatrix[j];
+ }
+ dest_col[row*bytes + i] = (uint8_t)(0.5f + sum / scale);
+ }
+ }
+ /* go through each pixel in each col */
+ dest_col_p = dest_col + row*bytes;
+ for (; row < y-cmatrix_middle; row++)
+ {
+ cur_col_p = (row - cmatrix_middle) * bytes + cur_col;
+ for (i = 0; i<bytes; i++)
+ {
+ sum = 0;
+ cmatrix_p = cmatrix;
+ cur_col_p1 = cur_col_p;
+ ctable_p = ctable;
+ for (j = cmatrix_length; j>0; j--)
+ {
+ sum += *(ctable_p + *cur_col_p1);
+ cur_col_p1 += bytes;
+ ctable_p += 256;
+ }
+ cur_col_p++;
+ *(dest_col_p++) = (uint8_t)(0.5f + sum);
+ }
+ }
+
+ /* for the edge condition , we only use available info, and scale to one */
+ for (; row < y; row++)
+ {
+ /* find scale factor */
+ scale=0;
+ for (j = 0; j< y-row + cmatrix_middle; j++)
+ scale += cmatrix[j];
+ for (i = 0; i<bytes; i++)
+ {
+ sum = 0;
+ for (j = 0; j<y-row + cmatrix_middle; j++)
+ {
+ sum += cur_col[(row + j-cmatrix_middle)*bytes + i] * cmatrix[j];
+ }
+ dest_col[row*bytes + i] = (uint8_t) (0.5f + sum / scale);
+ }
+ }
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * \author [DP]
+ */
+void CxImage::blur_text (uint8_t threshold, uint8_t decay, uint8_t max_depth, CxImage* iSrc, CxImage* iDst, uint8_t bytes)
+{
+ int32_t x,y,z,m;
+ uint8_t *pSrc, *pSrc2, *pSrc3, *pDst;
+ uint8_t step,n;
+ int32_t pivot;
+
+ if (max_depth<1) max_depth = 1;
+
+ int32_t nmin,nmax,xmin,xmax,ymin,ymax;
+ xmin = ymin = 0;
+ xmax = iSrc->head.biWidth;
+ ymax = iSrc->head.biHeight;
+
+ if (xmin==xmax || ymin==ymax) return;
+
+ nmin = xmin * bytes;
+ nmax = xmax * bytes;
+
+ CImageIterator itSrc(iSrc);
+ CImageIterator itTmp(iDst);
+
+ double dbScaler = 100.0f/(ymax-ymin)/bytes;
+
+ for (n=0; n<bytes; n++){
+ for (y=ymin+1;y<(ymax-1);y++)
+ {
+ if (info.nEscape) break;
+ info.nProgress = (int32_t)((y-ymin)*dbScaler*(1+n));
+
+ pSrc = itSrc.GetRow(y);
+ pSrc2 = itSrc.GetRow(y+1);
+ pSrc3 = itSrc.GetRow(y-1);
+ pDst = itTmp.GetRow(y);
+
+ //scan left to right
+ for (x=n+nmin /*,i=xmin*/; x<(nmax-1); x+=bytes /*,i++*/)
+ {
+ z=x+bytes;
+ pivot = pSrc[z]-threshold;
+ //find upper corner
+ if (pSrc[x]<pivot && pSrc2[z]<pivot && pSrc3[x]>=pivot){
+ while (z<nmax && pSrc2[z]<pSrc[x+bytes] && pSrc[x+bytes]<=pSrc[z]){
+ z+=bytes;
+ }
+ m = z-x;
+ m = (decay>1) ? ((m/bytes)/decay+1) : m/bytes;
+ if (m>max_depth) m = max_depth;
+ step = (uint8_t)((pSrc[x+bytes]-pSrc[x])/(m+1));
+ while (m-->1){
+ pDst[x+m*bytes] = (uint8_t)(pDst[x]+(step*(m+1)));
+ }
+ }
+ //find lower corner
+ z=x+bytes;
+ if (pSrc[x]<pivot && pSrc3[z]<pivot && pSrc2[x]>=pivot){
+ while (z<nmax && pSrc3[z]<pSrc[x+bytes] && pSrc[x+bytes]<=pSrc[z]){
+ z+=bytes;
+ }
+ m = z-x;
+ m = (decay>1) ? ((m/bytes)/decay+1) : m/bytes;
+ if (m>max_depth) m = max_depth;
+ step = (uint8_t)((pSrc[x+bytes]-pSrc[x])/(m+1));
+ while (m-->1){
+ pDst[x+m*bytes] = (uint8_t)(pDst[x]+(step*(m+1)));
+ }
+ }
+ }
+ //scan right to left
+ for (x=nmax-1-n /*,i=(xmax-1)*/; x>0; x-=bytes /*,i--*/)
+ {
+ z=x-bytes;
+ pivot = pSrc[z]-threshold;
+ //find upper corner
+ if (pSrc[x]<pivot && pSrc2[z]<pivot && pSrc3[x]>=pivot){
+ while (z>n && pSrc2[z]<pSrc[x-bytes] && pSrc[x-bytes]<=pSrc[z]){
+ z-=bytes;
+ }
+ m = x-z;
+ m = (decay>1) ? ((m/bytes)/decay+1) : m/bytes;
+ if (m>max_depth) m = max_depth;
+ step = (uint8_t)((pSrc[x-bytes]-pSrc[x])/(m+1));
+ while (m-->1){
+ pDst[x-m*bytes] = (uint8_t)(pDst[x]+(step*(m+1)));
+ }
+ }
+ //find lower corner
+ z=x-bytes;
+ if (pSrc[x]<pivot && pSrc3[z]<pivot && pSrc2[x]>=pivot){
+ while (z>n && pSrc3[z]<pSrc[x-bytes] && pSrc[x-bytes]<=pSrc[z]){
+ z-=bytes;
+ }
+ m = x-z;
+ m = (decay>1) ? ((m/bytes)/decay+1) : m/bytes;
+ if (m>max_depth) m = max_depth;
+ step = (uint8_t)((pSrc[x-bytes]-pSrc[x])/(m+1));
+ while (m-->1){
+ pDst[x-m*bytes] = (uint8_t)(pDst[x]+(step*(m+1)));
+ }
+ }
+ }
+ }
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * \author [DP]
+ */
+bool CxImage::TextBlur(uint8_t threshold, uint8_t decay, uint8_t max_depth, bool bBlurHorizontal, bool bBlurVertical, CxImage* iDst)
+{
+ if (!pDib) return false;
+
+ RGBQUAD* pPalette=NULL;
+ uint16_t bpp = GetBpp();
+
+ //the routine is optimized for RGB or GrayScale images
+ if (!(head.biBitCount == 24 || IsGrayScale())){
+ pPalette = new RGBQUAD[head.biClrUsed];
+ memcpy(pPalette, GetPalette(),GetPaletteSize());
+ if (!IncreaseBpp(24))
+ return false;
+ }
+
+ CxImage tmp(*this);
+ if (!tmp.IsValid()){
+ strcpy(info.szLastError,tmp.GetLastError());
+ return false;
+ }
+
+ if (bBlurHorizontal)
+ blur_text(threshold, decay, max_depth, this, &tmp, head.biBitCount>>3);
+
+ if (bBlurVertical){
+ CxImage src2(*this);
+ src2.RotateLeft();
+ tmp.RotateLeft();
+ blur_text(threshold, decay, max_depth, &src2, &tmp, head.biBitCount>>3);
+ tmp.RotateRight();
+ }
+
+#if CXIMAGE_SUPPORT_SELECTION
+ //restore the non selected region
+ if (pSelection){
+ for(int32_t y=0; y<head.biHeight; y++){
+ for(int32_t x=0; x<head.biWidth; x++){
+ if (!BlindSelectionIsInside(x,y)){
+ tmp.BlindSetPixelColor(x,y,BlindGetPixelColor(x,y));
+ }
+ }
+ }
+ }
+#endif //CXIMAGE_SUPPORT_SELECTION
+
+ //if necessary, restore the original BPP and palette
+ if (pPalette){
+ tmp.DecreaseBpp(bpp, true, pPalette);
+ delete [] pPalette;
+ }
+
+ if (iDst) iDst->Transfer(tmp);
+ else Transfer(tmp);
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * \author [nipper]; changes [DP]
+ */
+bool CxImage::GaussianBlur(float radius /*= 1.0f*/, CxImage* iDst /*= 0*/)
+{
+ if (!pDib) return false;
+
+ RGBQUAD* pPalette=NULL;
+ uint16_t bpp = GetBpp();
+
+ //the routine is optimized for RGB or GrayScale images
+ if (!(head.biBitCount == 24 || IsGrayScale())){
+ pPalette = new RGBQUAD[head.biClrUsed];
+ memcpy(pPalette, GetPalette(),GetPaletteSize());
+ if (!IncreaseBpp(24))
+ return false;
+ }
+
+ CxImage tmp_x(*this, false, true, true);
+ if (!tmp_x.IsValid()){
+ strcpy(info.szLastError,tmp_x.GetLastError());
+ return false;
+ }
+
+ // generate convolution matrix and make sure it's smaller than each dimension
+ float *cmatrix = NULL;
+ int32_t cmatrix_length = gen_convolve_matrix(radius, &cmatrix);
+ // generate lookup table
+ float *ctable = gen_lookup_table(cmatrix, cmatrix_length);
+
+ int32_t x,y;
+ int32_t bypp = head.biBitCount>>3;
+
+ CImageIterator itSrc(this);
+ CImageIterator itTmp(&tmp_x);
+
+ double dbScaler = 50.0f/head.biHeight;
+
+ // blur the rows
+ for (y=0;y<head.biHeight;y++)
+ {
+ if (info.nEscape) break;
+ info.nProgress = (int32_t)(y*dbScaler);
+
+ blur_line(ctable, cmatrix, cmatrix_length, itSrc.GetRow(y), itTmp.GetRow(y), head.biWidth, bypp);
+ }
+
+ CxImage tmp_y(tmp_x, false, true, true);
+ if (!tmp_y.IsValid()){
+ strcpy(info.szLastError,tmp_y.GetLastError());
+ return false;
+ }
+
+ CImageIterator itDst(&tmp_y);
+
+ // blur the cols
+ uint8_t* cur_col = (uint8_t*)malloc(bypp*head.biHeight);
+ uint8_t* dest_col = (uint8_t*)malloc(bypp*head.biHeight);
+
+ dbScaler = 50.0f/head.biWidth;
+
+ for (x=0;x<head.biWidth;x++)
+ {
+ if (info.nEscape) break;
+ info.nProgress = (int32_t)(50.0f+x*dbScaler);
+
+ itTmp.GetCol(cur_col, x);
+ itDst.GetCol(dest_col, x);
+ blur_line(ctable, cmatrix, cmatrix_length, cur_col, dest_col, head.biHeight, bypp);
+ itDst.SetCol(dest_col, x);
+ }
+
+ free(cur_col);
+ free(dest_col);
+
+ delete [] cmatrix;
+ delete [] ctable;
+
+#if CXIMAGE_SUPPORT_SELECTION
+ //restore the non selected region
+ if (pSelection){
+ for(y=0; y<head.biHeight; y++){
+ for(x=0; x<head.biWidth; x++){
+ if (!BlindSelectionIsInside(x,y)){
+ tmp_y.BlindSetPixelColor(x,y,BlindGetPixelColor(x,y));
+ }
+ }
+ }
+ }
+#endif //CXIMAGE_SUPPORT_SELECTION
+
+ //if necessary, restore the original BPP and palette
+ if (pPalette){
+ tmp_y.DecreaseBpp(bpp, false, pPalette);
+ if (iDst) DecreaseBpp(bpp, false, pPalette);
+ delete [] pPalette;
+ }
+
+ if (iDst) iDst->Transfer(tmp_y);
+ else Transfer(tmp_y);
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * \author [DP],[nipper]
+ */
+bool CxImage::SelectiveBlur(float radius, uint8_t threshold, CxImage* iDst)
+{
+ if (!pDib) return false;
+
+ RGBQUAD* pPalette=NULL;
+ uint16_t bpp = GetBpp();
+
+ CxImage Tmp(*this, true, true, true);
+ if (!Tmp.IsValid()){
+ strcpy(info.szLastError,Tmp.GetLastError());
+ return false;
+ }
+
+ //the routine is optimized for RGB or GrayScale images
+ if (!(head.biBitCount == 24 || IsGrayScale())){
+ pPalette = new RGBQUAD[head.biClrUsed];
+ memcpy(pPalette, GetPalette(),GetPaletteSize());
+ if (!Tmp.IncreaseBpp(24)){
+ delete [] pPalette;
+ return false;
+ }
+ }
+
+ CxImage Dst(Tmp, true, true, true);
+ if (!Dst.IsValid()){
+ strcpy(info.szLastError,Dst.GetLastError());
+ delete [] pPalette;
+ return false;
+ }
+
+ //build the difference mask
+ uint8_t thresh_dw = (uint8_t)max( 0 ,(int32_t)(128 - threshold));
+ uint8_t thresh_up = (uint8_t)min(255,(int32_t)(128 + threshold));
+ int32_t kernel[]={-100,-100,-100,-100,801,-100,-100,-100,-100};
+ if (!Tmp.Filter(kernel,3,800,128)){
+ strcpy(info.szLastError,Tmp.GetLastError());
+ delete [] pPalette;
+ return false;
+ }
+
+ //if the image has no selection, build a selection for the whole image
+#if CXIMAGE_SUPPORT_SELECTION
+ if (!Tmp.SelectionIsValid()){
+ Tmp.SelectionCreate();
+ Tmp.SelectionClear(255);
+ }
+
+ int32_t xmin,xmax,ymin,ymax;
+ xmin = Tmp.info.rSelectionBox.left;
+ xmax = Tmp.info.rSelectionBox.right;
+ ymin = Tmp.info.rSelectionBox.bottom;
+ ymax = Tmp.info.rSelectionBox.top;
+
+ //modify the selection where the difference mask is over the threshold
+ for(int32_t y=ymin; y<ymax; y++){
+ info.nProgress = (int32_t)(100*(y-ymin)/(ymax-ymin));
+ if (info.nEscape) break;
+ for(int32_t x=xmin; x<xmax; x++){
+ if(Tmp.BlindSelectionIsInside(x,y)){
+ RGBQUAD c = Tmp.BlindGetPixelColor(x,y);
+ if ((c.rgbRed < thresh_dw || c.rgbRed > thresh_up) ||
+ (c.rgbGreen < thresh_dw || c.rgbGreen > thresh_up) ||
+ (c.rgbBlue < thresh_dw || c.rgbBlue > thresh_up))
+ {
+ Tmp.SelectionSet(x,y,0);
+ }
+ }
+ }
+ }
+
+ //blur the image (only in the selected pixels)
+ Dst.SelectionCopy(Tmp);
+ if (!Dst.GaussianBlur(radius)){
+ strcpy(info.szLastError,Dst.GetLastError());
+ delete [] pPalette;
+ return false;
+ }
+
+ //restore the original selection
+ Dst.SelectionCopy(*this);
+#endif //CXIMAGE_SUPPORT_SELECTION
+
+ //if necessary, restore the original BPP and palette
+ if (pPalette){
+ Dst.DecreaseBpp(bpp, false, pPalette);
+ delete [] pPalette;
+ }
+
+ if (iDst) iDst->Transfer(Dst);
+ else Transfer(Dst);
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * sharpen the image by subtracting a blurred copy from the original image.
+ * \param radius: width in pixels of the blurring effect. Range: >0; default = 5.
+ * \param amount: strength of the filter. Range: 0.0 (none) to 1.0 (max); default = 0.5
+ * \param threshold: difference, between blurred and original pixel, to trigger the filter
+ * Range: 0 (always triggered) to 255 (never triggered); default = 0.
+ * \return true if everything is ok
+ * \author [nipper]; changes [DP]
+ */
+bool CxImage::UnsharpMask(float radius /*= 5.0*/, float amount /*= 0.5*/, int32_t threshold /*= 0*/)
+{
+ if (!pDib) return false;
+
+ RGBQUAD* pPalette=NULL;
+ uint16_t bpp = GetBpp();
+
+ //the routine is optimized for RGB or GrayScale images
+ if (!(head.biBitCount == 24 || IsGrayScale())){
+ pPalette = new RGBQUAD[head.biClrUsed];
+ memcpy(pPalette, GetPalette(),GetPaletteSize());
+ if (!IncreaseBpp(24))
+ return false;
+ }
+
+ CxImage iDst;
+ if (!GaussianBlur(radius,&iDst))
+ return false;
+
+ CImageIterator itSrc(this);
+ CImageIterator itDst(&iDst);
+
+ int32_t xmin,xmax,ymin,ymax;
+ if (pSelection){
+ xmin = info.rSelectionBox.left; xmax = info.rSelectionBox.right;
+ ymin = info.rSelectionBox.bottom; ymax = info.rSelectionBox.top;
+ } else {
+ xmin = ymin = 0;
+ xmax = head.biWidth; ymax=head.biHeight;
+ }
+
+ if (xmin==xmax || ymin==ymax)
+ return false;
+
+ double dbScaler = 100.0/(ymax-ymin);
+ int32_t bypp = head.biBitCount>>3;
+
+ // merge the source and destination (which currently contains
+ // the blurred version) images
+ for (int32_t y=ymin; y<ymax; y++)
+ {
+ if (info.nEscape) break;
+ info.nProgress = (int32_t)((y-ymin)*dbScaler);
+
+ // get source row
+ uint8_t* cur_row = itSrc.GetRow(y);
+ // get dest row
+ uint8_t* dest_row = itDst.GetRow(y);
+ // combine the two
+ for (int32_t x=xmin; x<xmax; x++) {
+#if CXIMAGE_SUPPORT_SELECTION
+ if (BlindSelectionIsInside(x,y))
+#endif //CXIMAGE_SUPPORT_SELECTION
+ {
+ for (int32_t b=0, z=x*bypp; b<bypp; b++, z++){
+ int32_t diff = cur_row[z] - dest_row[z];
+
+ // do tresholding
+ if (abs(diff) < threshold){
+ dest_row[z] = cur_row[z];
+ } else {
+ dest_row[z] = (uint8_t)min(255, max(0,(int32_t)(cur_row[z] + amount * diff)));
+ }
+ }
+ }
+ }
+ }
+
+ //if necessary, restore the original BPP and palette
+ if (pPalette){
+ iDst.DecreaseBpp(bpp, false, pPalette);
+ delete [] pPalette;
+ }
+
+ Transfer(iDst);
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Apply a look up table to the image.
+ * \param pLut: uint8_t[256] look up table
+ * \return true if everything is ok
+ */
+bool CxImage::Lut(uint8_t* pLut)
+{
+ if (!pDib || !pLut) return false;
+ RGBQUAD color;
+
+ double dbScaler;
+ if (head.biClrUsed==0){
+
+ int32_t xmin,xmax,ymin,ymax;
+ if (pSelection){
+ xmin = info.rSelectionBox.left; xmax = info.rSelectionBox.right;
+ ymin = info.rSelectionBox.bottom; ymax = info.rSelectionBox.top;
+ } else {
+ // faster loop for full image
+ uint8_t *iSrc=info.pImage;
+ for(uint32_t i=0; i < head.biSizeImage ; i++){
+ *iSrc++ = pLut[*iSrc];
+ }
+ return true;
+ }
+
+ if (xmin==xmax || ymin==ymax)
+ return false;
+
+ dbScaler = 100.0/(ymax-ymin);
+
+ for(int32_t y=ymin; y<ymax; y++){
+ info.nProgress = (int32_t)((y-ymin)*dbScaler); //<Anatoly Ivasyuk>
+ for(int32_t x=xmin; x<xmax; x++){
+#if CXIMAGE_SUPPORT_SELECTION
+ if (BlindSelectionIsInside(x,y))
+#endif //CXIMAGE_SUPPORT_SELECTION
+ {
+ color = BlindGetPixelColor(x,y);
+ color.rgbRed = pLut[color.rgbRed];
+ color.rgbGreen = pLut[color.rgbGreen];
+ color.rgbBlue = pLut[color.rgbBlue];
+ BlindSetPixelColor(x,y,color);
+ }
+ }
+ }
+#if CXIMAGE_SUPPORT_SELECTION
+ } else if (pSelection && (head.biBitCount==8) && IsGrayScale()){
+ int32_t xmin,xmax,ymin,ymax;
+ xmin = info.rSelectionBox.left; xmax = info.rSelectionBox.right;
+ ymin = info.rSelectionBox.bottom; ymax = info.rSelectionBox.top;
+
+ if (xmin==xmax || ymin==ymax)
+ return false;
+
+ dbScaler = 100.0/(ymax-ymin);
+ for(int32_t y=ymin; y<ymax; y++){
+ info.nProgress = (int32_t)((y-ymin)*dbScaler);
+ for(int32_t x=xmin; x<xmax; x++){
+ if (BlindSelectionIsInside(x,y))
+ {
+ BlindSetPixelIndex(x,y,pLut[BlindGetPixelIndex(x,y)]);
+ }
+ }
+ }
+#endif //CXIMAGE_SUPPORT_SELECTION
+ } else {
+ bool bIsGrayScale = IsGrayScale();
+ for(uint32_t j=0; j<head.biClrUsed; j++){
+ color = GetPaletteColor((uint8_t)j);
+ color.rgbRed = pLut[color.rgbRed];
+ color.rgbGreen = pLut[color.rgbGreen];
+ color.rgbBlue = pLut[color.rgbBlue];
+ SetPaletteColor((uint8_t)j,color);
+ }
+ if (bIsGrayScale) GrayScale();
+ }
+ return true;
+
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Apply an indipendent look up table for each channel
+ * \param pLutR, pLutG, pLutB, pLutA: uint8_t[256] look up tables
+ * \return true if everything is ok
+ */
+bool CxImage::Lut(uint8_t* pLutR, uint8_t* pLutG, uint8_t* pLutB, uint8_t* pLutA)
+{
+ if (!pDib || !pLutR || !pLutG || !pLutB) return false;
+ RGBQUAD color;
+
+ double dbScaler;
+ if (head.biClrUsed==0){
+
+ int32_t xmin,xmax,ymin,ymax;
+ if (pSelection){
+ xmin = info.rSelectionBox.left; xmax = info.rSelectionBox.right;
+ ymin = info.rSelectionBox.bottom; ymax = info.rSelectionBox.top;
+ } else {
+ xmin = ymin = 0;
+ xmax = head.biWidth; ymax=head.biHeight;
+ }
+
+ if (xmin==xmax || ymin==ymax)
+ return false;
+
+ dbScaler = 100.0/(ymax-ymin);
+
+ for(int32_t y=ymin; y<ymax; y++){
+ info.nProgress = (int32_t)((y-ymin)*dbScaler);
+ for(int32_t x=xmin; x<xmax; x++){
+#if CXIMAGE_SUPPORT_SELECTION
+ if (BlindSelectionIsInside(x,y))
+#endif //CXIMAGE_SUPPORT_SELECTION
+ {
+ color = BlindGetPixelColor(x,y);
+ color.rgbRed = pLutR[color.rgbRed];
+ color.rgbGreen = pLutG[color.rgbGreen];
+ color.rgbBlue = pLutB[color.rgbBlue];
+ if (pLutA) color.rgbReserved=pLutA[color.rgbReserved];
+ BlindSetPixelColor(x,y,color,true);
+ }
+ }
+ }
+ } else {
+ bool bIsGrayScale = IsGrayScale();
+ for(uint32_t j=0; j<head.biClrUsed; j++){
+ color = GetPaletteColor((uint8_t)j);
+ color.rgbRed = pLutR[color.rgbRed];
+ color.rgbGreen = pLutG[color.rgbGreen];
+ color.rgbBlue = pLutB[color.rgbBlue];
+ SetPaletteColor((uint8_t)j,color);
+ }
+ if (bIsGrayScale) GrayScale();
+ }
+
+ return true;
+
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Use the RedEyeRemove function to remove the red-eye effect that frequently
+ * occurs in photographs of humans and animals. You must select the region
+ * where the function will filter the red channel.
+ * \param strength: range from 0.0f (no effect) to 1.0f (full effect). Default = 0.8
+ * \return true if everything is ok
+ */
+bool CxImage::RedEyeRemove(float strength)
+{
+ if (!pDib) return false;
+ RGBQUAD color;
+
+ int32_t xmin,xmax,ymin,ymax;
+ if (pSelection){
+ xmin = info.rSelectionBox.left; xmax = info.rSelectionBox.right;
+ ymin = info.rSelectionBox.bottom; ymax = info.rSelectionBox.top;
+ } else {
+ xmin = ymin = 0;
+ xmax = head.biWidth; ymax=head.biHeight;
+ }
+
+ if (xmin==xmax || ymin==ymax)
+ return false;
+
+ if (strength<0.0f) strength = 0.0f;
+ if (strength>1.0f) strength = 1.0f;
+
+ for(int32_t y=ymin; y<ymax; y++){
+ info.nProgress = (int32_t)(100*(y-ymin)/(ymax-ymin));
+ if (info.nEscape) break;
+ for(int32_t x=xmin; x<xmax; x++){
+#if CXIMAGE_SUPPORT_SELECTION
+ if (BlindSelectionIsInside(x,y))
+#endif //CXIMAGE_SUPPORT_SELECTION
+ {
+ float a = 1.0f-5.0f*((float)((x-0.5f*(xmax+xmin))*(x-0.5f*(xmax+xmin))+(y-0.5f*(ymax+ymin))*(y-0.5f*(ymax+ymin))))/((float)((xmax-xmin)*(ymax-ymin)));
+ if (a<0) a=0;
+ color = BlindGetPixelColor(x,y);
+ color.rgbRed = (uint8_t)(a*min(color.rgbGreen,color.rgbBlue)+(1.0f-a)*color.rgbRed);
+ BlindSetPixelColor(x,y,color);
+ }
+ }
+ }
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Changes the saturation of the image.
+ * \param saturation: can be from -100 to 100, positive values increase the saturation.
+ * \param colorspace: can be 1 (HSL) or 2 (YUV).
+ * \return true if everything is ok
+ */
+bool CxImage::Saturate(const int32_t saturation, const int32_t colorspace)
+{
+ if (!pDib)
+ return false;
+
+ int32_t xmin,xmax,ymin,ymax;
+ if (pSelection){
+ xmin = info.rSelectionBox.left; xmax = info.rSelectionBox.right;
+ ymin = info.rSelectionBox.bottom; ymax = info.rSelectionBox.top;
+ } else {
+ xmin = ymin = 0;
+ xmax = head.biWidth; ymax=head.biHeight;
+ }
+
+ if (xmin==xmax || ymin==ymax)
+ return false;
+
+ uint8_t cTable[256];
+
+ switch(colorspace)
+ {
+ case 1:
+ {
+ for (int32_t i=0;i<256;i++) {
+ cTable[i] = (uint8_t)max(0,min(255,(int32_t)(i + saturation)));
+ }
+ for(int32_t y=ymin; y<ymax; y++){
+ info.nProgress = (int32_t)(100*(y-ymin)/(ymax-ymin));
+ if (info.nEscape) break;
+ for(int32_t x=xmin; x<xmax; x++){
+#if CXIMAGE_SUPPORT_SELECTION
+ if (BlindSelectionIsInside(x,y))
+#endif //CXIMAGE_SUPPORT_SELECTION
+ {
+ RGBQUAD c = RGBtoHSL(BlindGetPixelColor(x,y));
+ c.rgbGreen = cTable[c.rgbGreen];
+ c = HSLtoRGB(c);
+ BlindSetPixelColor(x,y,c);
+ }
+ }
+ }
+ }
+ break;
+ case 2:
+ {
+ for (int32_t i=0;i<256;i++) {
+ cTable[i] = (uint8_t)max(0,min(255,(int32_t)((i-128)*(100 + saturation)/100.0f + 128.5f)));
+ }
+ for(int32_t y=ymin; y<ymax; y++){
+ info.nProgress = (int32_t)(100*(y-ymin)/(ymax-ymin));
+ if (info.nEscape) break;
+ for(int32_t x=xmin; x<xmax; x++){
+#if CXIMAGE_SUPPORT_SELECTION
+ if (BlindSelectionIsInside(x,y))
+#endif //CXIMAGE_SUPPORT_SELECTION
+ {
+ RGBQUAD c = RGBtoYUV(BlindGetPixelColor(x,y));
+ c.rgbGreen = cTable[c.rgbGreen];
+ c.rgbBlue = cTable[c.rgbBlue];
+ c = YUVtoRGB(c);
+ BlindSetPixelColor(x,y,c);
+ }
+ }
+ }
+ }
+ break;
+ default:
+ strcpy(info.szLastError,"Saturate: wrong colorspace");
+ return false;
+ }
+ return true;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Solarize: convert all colors above a given lightness level into their negative
+ * \param level : lightness threshold. Range = 0 to 255; default = 128.
+ * \param bLinkedChannels: true = compare with luminance, preserve colors (default)
+ * false = compare with independent R,G,B levels
+ * \return true if everything is ok
+ * \author [Priyank Bolia] (priyank_bolia(at)yahoo(dot)com); changes [DP]
+ */
+bool CxImage::Solarize(uint8_t level, bool bLinkedChannels)
+{
+ if (!pDib) return false;
+
+ int32_t xmin,xmax,ymin,ymax;
+ if (pSelection){
+ xmin = info.rSelectionBox.left; xmax = info.rSelectionBox.right;
+ ymin = info.rSelectionBox.bottom; ymax = info.rSelectionBox.top;
+ } else {
+ xmin = ymin = 0;
+ xmax = head.biWidth; ymax=head.biHeight;
+ }
+
+ if (head.biBitCount<=8){
+ if (IsGrayScale()){ //GRAYSCALE, selection
+ for(int32_t y=ymin; y<ymax; y++){
+ for(int32_t x=xmin; x<xmax; x++){
+#if CXIMAGE_SUPPORT_SELECTION
+ if (BlindSelectionIsInside(x,y))
+#endif //CXIMAGE_SUPPORT_SELECTION
+ {
+ uint8_t index = BlindGetPixelIndex(x,y);
+ RGBQUAD color = GetPaletteColor(index);
+ if ((uint8_t)RGB2GRAY(color.rgbRed,color.rgbGreen,color.rgbBlue)>level){
+ BlindSetPixelIndex(x,y,255-index);
+ }
+ }
+ }
+ }
+ } else { //PALETTE, full image
+ RGBQUAD* ppal=GetPalette();
+ for(uint32_t i=0;i<head.biClrUsed;i++){
+ RGBQUAD color = GetPaletteColor((uint8_t)i);
+ if (bLinkedChannels){
+ if ((uint8_t)RGB2GRAY(color.rgbRed,color.rgbGreen,color.rgbBlue)>level){
+ ppal[i].rgbBlue =(uint8_t)(255-ppal[i].rgbBlue);
+ ppal[i].rgbGreen =(uint8_t)(255-ppal[i].rgbGreen);
+ ppal[i].rgbRed =(uint8_t)(255-ppal[i].rgbRed);
+ }
+ } else {
+ if (color.rgbBlue>level) ppal[i].rgbBlue =(uint8_t)(255-ppal[i].rgbBlue);
+ if (color.rgbGreen>level) ppal[i].rgbGreen =(uint8_t)(255-ppal[i].rgbGreen);
+ if (color.rgbRed>level) ppal[i].rgbRed =(uint8_t)(255-ppal[i].rgbRed);
+ }
+ }
+ }
+ } else { //RGB, selection
+ for(int32_t y=ymin; y<ymax; y++){
+ for(int32_t x=xmin; x<xmax; x++){
+#if CXIMAGE_SUPPORT_SELECTION
+ if (BlindSelectionIsInside(x,y))
+#endif //CXIMAGE_SUPPORT_SELECTION
+ {
+ RGBQUAD color = BlindGetPixelColor(x,y);
+ if (bLinkedChannels){
+ if ((uint8_t)RGB2GRAY(color.rgbRed,color.rgbGreen,color.rgbBlue)>level){
+ color.rgbRed = (uint8_t)(255-color.rgbRed);
+ color.rgbGreen = (uint8_t)(255-color.rgbGreen);
+ color.rgbBlue = (uint8_t)(255-color.rgbBlue);
+ }
+ } else {
+ if (color.rgbBlue>level) color.rgbBlue =(uint8_t)(255-color.rgbBlue);
+ if (color.rgbGreen>level) color.rgbGreen =(uint8_t)(255-color.rgbGreen);
+ if (color.rgbRed>level) color.rgbRed =(uint8_t)(255-color.rgbRed);
+ }
+ BlindSetPixelColor(x,y,color);
+ }
+ }
+ }
+ }
+
+ //invert transparent color only in case of full image processing
+ if (pSelection==0 || (!IsGrayScale() && IsIndexed())){
+ if (bLinkedChannels){
+ if ((uint8_t)RGB2GRAY(info.nBkgndColor.rgbRed,info.nBkgndColor.rgbGreen,info.nBkgndColor.rgbBlue)>level){
+ info.nBkgndColor.rgbBlue = (uint8_t)(255-info.nBkgndColor.rgbBlue);
+ info.nBkgndColor.rgbGreen = (uint8_t)(255-info.nBkgndColor.rgbGreen);
+ info.nBkgndColor.rgbRed = (uint8_t)(255-info.nBkgndColor.rgbRed);
+ }
+ } else {
+ if (info.nBkgndColor.rgbBlue>level) info.nBkgndColor.rgbBlue = (uint8_t)(255-info.nBkgndColor.rgbBlue);
+ if (info.nBkgndColor.rgbGreen>level) info.nBkgndColor.rgbGreen = (uint8_t)(255-info.nBkgndColor.rgbGreen);
+ if (info.nBkgndColor.rgbRed>level) info.nBkgndColor.rgbRed = (uint8_t)(255-info.nBkgndColor.rgbRed);
+ }
+ }
+
+ return true;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Converts the RGB triplets to and from different colorspace
+ * \param dstColorSpace: destination colorspace; 0 = RGB, 1 = HSL, 2 = YUV, 3 = YIQ, 4 = XYZ
+ * \param srcColorSpace: source colorspace; 0 = RGB, 1 = HSL, 2 = YUV, 3 = YIQ, 4 = XYZ
+ * \return true if everything is ok
+ */
+bool CxImage::ConvertColorSpace(const int32_t dstColorSpace, const int32_t srcColorSpace)
+{
+ if (!pDib)
+ return false;
+
+ if (dstColorSpace == srcColorSpace)
+ return true;
+
+ int32_t w = GetWidth();
+ int32_t h = GetHeight();
+
+ for (int32_t y=0;y<h;y++){
+ info.nProgress = (int32_t)(100*y/h);
+ if (info.nEscape) break;
+ for (int32_t x=0;x<w;x++){
+ RGBQUAD c = BlindGetPixelColor(x,y);
+ switch (srcColorSpace){
+ case 0:
+ break;
+ case 1:
+ c = HSLtoRGB(c);
+ break;
+ case 2:
+ c = YUVtoRGB(c);
+ break;
+ case 3:
+ c = YIQtoRGB(c);
+ break;
+ case 4:
+ c = XYZtoRGB(c);
+ break;
+ default:
+ strcpy(info.szLastError,"ConvertColorSpace: unknown source colorspace");
+ return false;
+ }
+ switch (dstColorSpace){
+ case 0:
+ break;
+ case 1:
+ c = RGBtoHSL(c);
+ break;
+ case 2:
+ c = RGBtoYUV(c);
+ break;
+ case 3:
+ c = RGBtoYIQ(c);
+ break;
+ case 4:
+ c = RGBtoXYZ(c);
+ break;
+ default:
+ strcpy(info.szLastError,"ConvertColorSpace: unknown destination colorspace");
+ return false;
+ }
+ BlindSetPixelColor(x,y,c);
+ }
+ }
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Finds the optimal (global or local) treshold for image binarization
+ * \param method: 0 = average all methods (default); 1 = Otsu; 2 = Kittler & Illingworth; 3 = max entropy; 4 = potential difference;
+ * \param pBox: region from where the threshold is computed; 0 = full image (default).
+ * \param pContrastMask: limit the computation only in regions with contrasted (!=0) pixels; default = 0.
+ * the pContrastMask image must be grayscale with same with and height of the current image,
+ * can be obtained from the current image with a filter:
+ * CxImage iContrastMask(*image,true,false,false);
+ * iContrastMask.GrayScale();
+ * int32_t edge[]={-1,-1,-1,-1,8,-1,-1,-1,-1};
+ * iContrastMask.Filter(edge,3,1,0);
+ * int32_t blur[]={1,1,1,1,1,1,1,1,1};
+ * iContrastMask.Filter(blur,3,9,0);
+ * \return optimal threshold; -1 = error.
+ * \sa AdaptiveThreshold
+ */
+int32_t CxImage::OptimalThreshold(int32_t method, RECT * pBox, CxImage* pContrastMask)
+{
+ if (!pDib)
+ return false;
+
+ if (head.biBitCount!=8){
+ strcpy(info.szLastError,"OptimalThreshold works only on 8 bit images");
+ return -1;
+ }
+
+ if (pContrastMask){
+ if (!pContrastMask->IsValid() ||
+ !pContrastMask->IsGrayScale() ||
+ pContrastMask->GetWidth() != GetWidth() ||
+ pContrastMask->GetHeight() != GetHeight()){
+ strcpy(info.szLastError,"OptimalThreshold invalid ContrastMask");
+ return -1;
+ }
+ }
+
+ int32_t xmin,xmax,ymin,ymax;
+ if (pBox){
+ xmin = max(pBox->left,0);
+ xmax = min(pBox->right,head.biWidth);
+ ymin = max(pBox->bottom,0);
+ ymax = min(pBox->top,head.biHeight);
+ } else {
+ xmin = ymin = 0;
+ xmax = head.biWidth; ymax=head.biHeight;
+ }
+
+ if (xmin>=xmax || ymin>=ymax)
+ return -1;
+
+ double p[256];
+ memset(p, 0, 256*sizeof(double));
+ //build histogram
+ for (int32_t y = ymin; y<ymax; y++){
+ uint8_t* pGray = GetBits(y) + xmin;
+ uint8_t* pContr = 0;
+ if (pContrastMask) pContr = pContrastMask->GetBits(y) + xmin;
+ for (int32_t x = xmin; x<xmax; x++){
+ uint8_t n = *pGray++;
+ if (pContr){
+ if (*pContr) p[n]++;
+ pContr++;
+ } else {
+ p[n]++;
+ }
+ }
+ }
+
+ //find histogram limits
+ int32_t gray_min = 0;
+ while (gray_min<255 && p[gray_min]==0) gray_min++;
+ int32_t gray_max = 255;
+ while (gray_max>0 && p[gray_max]==0) gray_max--;
+ if (gray_min > gray_max)
+ return -1;
+ if (gray_min == gray_max){
+ if (gray_min == 0)
+ return 0;
+ else
+ return gray_max-1;
+ }
+
+ //compute total moments 0th,1st,2nd order
+ int32_t i,k;
+ double w_tot = 0;
+ double m_tot = 0;
+ double q_tot = 0;
+ for (i = gray_min; i <= gray_max; i++){
+ w_tot += p[i];
+ m_tot += i*p[i];
+ q_tot += i*i*p[i];
+ }
+
+ double L, L1max, L2max, L3max, L4max; //objective functions
+ int32_t th1,th2,th3,th4; //optimal thresholds
+ L1max = L2max = L3max = L4max = 0;
+ th1 = th2 = th3 = th4 = -1;
+
+ double w1, w2, m1, m2, q1, q2, s1, s2;
+ w1 = m1 = q1 = 0;
+ for (i = gray_min; i < gray_max; i++){
+ w1 += p[i];
+ w2 = w_tot - w1;
+ m1 += i*p[i];
+ m2 = m_tot - m1;
+ q1 += i*i*p[i];
+ q2 = q_tot - q1;
+ s1 = q1/w1-m1*m1/w1/w1; //s1 = q1/w1-pow(m1/w1,2);
+ s2 = q2/w2-m2*m2/w2/w2; //s2 = q2/w2-pow(m2/w2,2);
+
+ //Otsu
+ L = -(s1*w1 + s2*w2); //implemented as definition
+ //L = w1 * w2 * (m2/w2 - m1/w1)*(m2/w2 - m1/w1); //implementation that doesn't need s1 & s2
+ if (L1max < L || th1<0){
+ L1max = L;
+ th1 = i;
+ }
+
+ //Kittler and Illingworth
+ if (s1>0 && s2>0){
+ L = w1*log(w1/sqrt(s1))+w2*log(w2/sqrt(s2));
+ //L = w1*log(w1*w1/s1)+w2*log(w2*w2/s2);
+ if (L2max < L || th2<0){
+ L2max = L;
+ th2 = i;
+ }
+ }
+
+ //max entropy
+ L = 0;
+ for (k=gray_min;k<=i;k++) if (p[k] > 0) L -= p[k]*log(p[k]/w1)/w1;
+ for (k;k<=gray_max;k++) if (p[k] > 0) L -= p[k]*log(p[k]/w2)/w2;
+ if (L3max < L || th3<0){
+ L3max = L;
+ th3 = i;
+ }
+
+ //potential difference (based on Electrostatic Binarization method by J. Acharya & G. Sreechakra)
+ // L=-fabs(vdiff/vsum); è molto selettivo, sembra che L=-fabs(vdiff) o L=-(vsum)
+ // abbiano lo stesso valore di soglia... il che semplificherebbe molto la routine
+ double vdiff = 0;
+ for (k=gray_min;k<=i;k++)
+ vdiff += p[k]*(i-k)*(i-k);
+ double vsum = vdiff;
+ for (k;k<=gray_max;k++){
+ double dv = p[k]*(k-i)*(k-i);
+ vdiff -= dv;
+ vsum += dv;
+ }
+ if (vsum>0) L = -fabs(vdiff/vsum); else L = 0;
+ if (L4max < L || th4<0){
+ L4max = L;
+ th4 = i;
+ }
+ }
+
+ int32_t threshold;
+ switch (method){
+ case 1: //Otsu
+ threshold = th1;
+ break;
+ case 2: //Kittler and Illingworth
+ threshold = th2;
+ break;
+ case 3: //max entropy
+ threshold = th3;
+ break;
+ case 4: //potential difference
+ threshold = th4;
+ break;
+ default: //auto
+ {
+ int32_t nt = 0;
+ threshold = 0;
+ if (th1>=0) { threshold += th1; nt++;}
+ if (th2>=0) { threshold += th2; nt++;}
+ if (th3>=0) { threshold += th3; nt++;}
+ if (th4>=0) { threshold += th4; nt++;}
+ if (nt)
+ threshold /= nt;
+ else
+ threshold = (gray_min+gray_max)/2;
+
+ /*better(?) but really expensive alternative:
+ n = 0:255;
+ pth1 = c1(th1)/sqrt(2*pi*s1(th1))*exp(-((n - m1(th1)).^2)/2/s1(th1)) + c2(th1)/sqrt(2*pi*s2(th1))*exp(-((n - m2(th1)).^2)/2/s2(th1));
+ pth2 = c1(th2)/sqrt(2*pi*s1(th2))*exp(-((n - m1(th2)).^2)/2/s1(th2)) + c2(th2)/sqrt(2*pi*s2(th2))*exp(-((n - m2(th2)).^2)/2/s2(th2));
+ ...
+ mse_th1 = sum((p-pth1).^2);
+ mse_th2 = sum((p-pth2).^2);
+ ...
+ select th# that gives minimum mse_th#
+ */
+
+ }
+ }
+
+ if (threshold <= gray_min || threshold >= gray_max)
+ threshold = (gray_min+gray_max)/2;
+
+ return threshold;
+}
+///////////////////////////////////////////////////////////////////////////////
+/**
+ * Converts the image to B&W, using an optimal threshold mask
+ * \param method: 0 = average all methods (default); 1 = Otsu; 2 = Kittler & Illingworth; 3 = max entropy; 4 = potential difference;
+ * \param nBoxSize: the image is divided into "nBoxSize x nBoxSize" blocks, from where the threshold is computed; min = 8; default = 64.
+ * \param pContrastMask: limit the computation only in regions with contrasted (!=0) pixels; default = 0.
+ * \param nBias: global offset added to the threshold mask; default = 0.
+ * \param fGlobalLocalBalance: balance between local and global threshold. default = 0.5
+ * fGlobalLocalBalance can be from 0.0 (use only local threshold) to 1.0 (use only global threshold)
+ * the pContrastMask image must be grayscale with same with and height of the current image,
+ * \return true if everything is ok.
+ * \sa OptimalThreshold
+ */
+bool CxImage::AdaptiveThreshold(int32_t method, int32_t nBoxSize, CxImage* pContrastMask, int32_t nBias, float fGlobalLocalBalance)
+{
+ if (!pDib)
+ return false;
+
+ if (pContrastMask){
+ if (!pContrastMask->IsValid() ||
+ !pContrastMask->IsGrayScale() ||
+ pContrastMask->GetWidth() != GetWidth() ||
+ pContrastMask->GetHeight() != GetHeight()){
+ strcpy(info.szLastError,"AdaptiveThreshold invalid ContrastMask");
+ return false;
+ }
+ }
+
+ if (nBoxSize<8) nBoxSize = 8;
+ if (fGlobalLocalBalance<0.0f) fGlobalLocalBalance = 0.0f;
+ if (fGlobalLocalBalance>1.0f) fGlobalLocalBalance = 1.0f;
+
+ int32_t mw = (head.biWidth + nBoxSize - 1)/nBoxSize;
+ int32_t mh = (head.biHeight + nBoxSize - 1)/nBoxSize;
+
+ CxImage mask(mw,mh,8);
+ if(!mask.GrayScale())
+ return false;
+
+ if(!GrayScale())
+ return false;
+
+ int32_t globalthreshold = OptimalThreshold(method, 0, pContrastMask);
+ if (globalthreshold <0)
+ return false;
+
+ for (int32_t y=0; y<mh; y++){
+ for (int32_t x=0; x<mw; x++){
+ info.nProgress = (int32_t)(100*(x+y*mw)/(mw*mh));
+ if (info.nEscape) break;
+ RECT r;
+ r.left = x*nBoxSize;
+ r.right = r.left + nBoxSize;
+ r.bottom = y*nBoxSize;
+ r.top = r.bottom + nBoxSize;
+ int32_t threshold = OptimalThreshold(method, &r, pContrastMask);
+ if (threshold <0) return false;
+ mask.SetPixelIndex(x,y,(uint8_t)max(0,min(255,nBias+((1.0f-fGlobalLocalBalance)*threshold + fGlobalLocalBalance*globalthreshold))));
+ }
+ }
+
+ mask.Resample(mw*nBoxSize,mh*nBoxSize,0);
+ mask.Crop(0,head.biHeight,head.biWidth,0);
+
+ if(!Threshold(&mask))
+ return false;
+
+ return true;
+}
+///////////////////////////////////////////////////////////////////////////////
+/**
+ * Finds the contour of an object with a given color
+ * \param color_target: object color
+ * \param color_trace: contour color
+ * \return true if everything is ok.
+ * \sa Edge, Contour
+ */
+bool CxImage::Trace(RGBQUAD color_target, RGBQUAD color_trace)
+{
+ if (!pDib) return false;
+
+ RGBQUAD color;
+ bool bFindStartPoint;
+ int32_t nFindPoint;
+ POINT StartPoint,CurrentPoint;
+ int32_t Direction[8][2]={{1,0},{1,-1},{0,-1},{-1,-1},{-1,0},{-1,1}, {0,1},{1,1}};
+ int32_t BeginDirect = 0;
+ int32_t x,y;
+
+ CxImage tmp;
+ tmp.CopyInfo(*this);
+ tmp.Create(head.biWidth,head.biHeight,24,info.dwType);
+ if (!tmp.IsValid()){
+ strcpy(info.szLastError,tmp.GetLastError());
+ return false;
+ }
+ tmp.Clear(255);
+
+ CurrentPoint.x = StartPoint.x = CurrentPoint.y = StartPoint.y = 0;
+ bFindStartPoint = false;
+ for (y=head.biHeight-1;y>=0 && !bFindStartPoint;y--){
+ info.nProgress = (int32_t)(100*y/head.biHeight);
+ if (info.nEscape) break;
+ for (x=0;x<head.biWidth && !bFindStartPoint;x++){
+ color = BlindGetPixelColor(x,y);
+ if (color.rgbRed == color_target.rgbRed &&
+ color.rgbGreen == color_target.rgbGreen &&
+ color.rgbBlue == color_target.rgbBlue )
+ {
+ bFindStartPoint = true;
+ CurrentPoint.x = StartPoint.x = x;
+ CurrentPoint.y = StartPoint.y = y;
+ }
+ }
+ }
+
+ while(bFindStartPoint)
+ {
+ nFindPoint = 8;
+ while(nFindPoint)
+ {
+ x = CurrentPoint.x + Direction[BeginDirect][0];
+ y = CurrentPoint.y + Direction[BeginDirect][1];
+ color = GetPixelColor(x,y);
+
+ if (IsInside(x,y) &&
+ color.rgbRed == color_target.rgbRed &&
+ color.rgbGreen == color_target.rgbGreen &&
+ color.rgbBlue == color_target.rgbBlue )
+ {
+ nFindPoint = 0;
+ CurrentPoint.x = x;
+ CurrentPoint.y = y;
+
+ if(x == StartPoint.x && y == StartPoint.y)
+ bFindStartPoint = false;
+
+ tmp.BlindSetPixelColor(x,y,color_trace);
+
+ BeginDirect--;
+ if(BeginDirect == -1) BeginDirect = 7;
+ }
+ else
+ {
+ BeginDirect++;
+ if(BeginDirect == 8) BeginDirect = 0;
+ nFindPoint--;
+ if(nFindPoint == 0) {
+ bFindStartPoint = false;
+ tmp.SetPixelColor(CurrentPoint.x,CurrentPoint.y,color_trace);
+ }
+ }
+ }
+ }
+ Transfer(tmp);
+ return true;
+}
+
+#ifndef __MINGW32__
+////////////////////////////////////////////////////////////////////////////////
+#include <queue>
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Flood Fill
+ * \param xStart, yStart: starting point
+ * \param cFillColor: filling color
+ * \param nTolerance: deviation from the starting point color
+ * \param nOpacity: can be from 0 (transparent) to 255 (opaque, default)
+ * \param bSelectFilledArea: if true, the pixels in the region are also set in the selection layer; default = false
+ * \param nSelectionLevel: if bSelectFilledArea is true, the selected pixels are set to nSelectionLevel; default = 255
+ * Note: nOpacity=0 && bSelectFilledArea=true act as a "magic wand"
+ * \return true if everything is ok
+ */
+bool CxImage::FloodFill(const int32_t xStart, const int32_t yStart, const RGBQUAD cFillColor, const uint8_t nTolerance,
+ uint8_t nOpacity, const bool bSelectFilledArea, const uint8_t nSelectionLevel)
+{
+ if (!pDib)
+ return false;
+
+ if (!IsInside(xStart,yStart))
+ return true;
+
+#if CXIMAGE_SUPPORT_SELECTION
+ if (!SelectionIsInside(xStart,yStart))
+ return true;
+#endif //CXIMAGE_SUPPORT_SELECTION
+
+ RGBQUAD* pPalette=NULL;
+ uint16_t bpp = GetBpp();
+ //nTolerance or nOpacity implemented only for grayscale or 24bpp images
+ if ((nTolerance || nOpacity != 255) && !(head.biBitCount == 24 || IsGrayScale())){
+ pPalette = new RGBQUAD[head.biClrUsed];
+ memcpy(pPalette, GetPalette(),GetPaletteSize());
+ if (!IncreaseBpp(24))
+ return false;
+ }
+
+ uint8_t* pFillMask = (uint8_t*)calloc(head.biWidth * head.biHeight,1);
+ if (!pFillMask)
+ return false;
+
+//------------------------------------- Begin of Flood Fill
+ POINT offset[4] = {{-1,0},{0,-1},{1,0},{0,1}};
+ std::queue<POINT> q;
+ POINT point = {xStart,yStart};
+ q.push(point);
+
+ if (IsIndexed()){ //--- Generic indexed image, no tolerance OR Grayscale image with tolerance
+ uint8_t idxRef = GetPixelIndex(xStart,yStart);
+ uint8_t idxFill = GetNearestIndex(cFillColor);
+ uint8_t idxMin = (uint8_t)min(255, max(0,(int32_t)(idxRef - nTolerance)));
+ uint8_t idxMax = (uint8_t)min(255, max(0,(int32_t)(idxRef + nTolerance)));
+
+ while(!q.empty())
+ {
+ point = q.front();
+ q.pop();
+
+ for (int32_t z=0; z<4; z++){
+ int32_t x = point.x + offset[z].x;
+ int32_t y = point.y + offset[z].y;
+ if(IsInside(x,y)){
+#if CXIMAGE_SUPPORT_SELECTION
+ if (BlindSelectionIsInside(x,y))
+#endif //CXIMAGE_SUPPORT_SELECTION
+ {
+ uint8_t idx = BlindGetPixelIndex(x, y);
+ uint8_t* pFill = pFillMask + x + y * head.biWidth;
+ if (*pFill==0 && idxMin <= idx && idx <= idxMax )
+ {
+ if (nOpacity>0){
+ if (nOpacity == 255)
+ BlindSetPixelIndex(x, y, idxFill);
+ else
+ BlindSetPixelIndex(x, y, (uint8_t)((idxFill * nOpacity + idx * (255-nOpacity))>>8));
+ }
+ POINT pt = {x,y};
+ q.push(pt);
+ *pFill = 1;
+ }
+ }
+ }
+ }
+ }
+ } else { //--- RGB image
+ RGBQUAD cRef = GetPixelColor(xStart,yStart);
+ RGBQUAD cRefMin, cRefMax;
+ cRefMin.rgbRed = (uint8_t)min(255, max(0,(int32_t)(cRef.rgbRed - nTolerance)));
+ cRefMin.rgbGreen = (uint8_t)min(255, max(0,(int32_t)(cRef.rgbGreen - nTolerance)));
+ cRefMin.rgbBlue = (uint8_t)min(255, max(0,(int32_t)(cRef.rgbBlue - nTolerance)));
+ cRefMax.rgbRed = (uint8_t)min(255, max(0,(int32_t)(cRef.rgbRed + nTolerance)));
+ cRefMax.rgbGreen = (uint8_t)min(255, max(0,(int32_t)(cRef.rgbGreen + nTolerance)));
+ cRefMax.rgbBlue = (uint8_t)min(255, max(0,(int32_t)(cRef.rgbBlue + nTolerance)));
+
+ while(!q.empty())
+ {
+ point = q.front();
+ q.pop();
+
+ for (int32_t z=0; z<4; z++){
+ int32_t x = point.x + offset[z].x;
+ int32_t y = point.y + offset[z].y;
+ if(IsInside(x,y)){
+#if CXIMAGE_SUPPORT_SELECTION
+ if (BlindSelectionIsInside(x,y))
+#endif //CXIMAGE_SUPPORT_SELECTION
+ {
+ RGBQUAD cc = BlindGetPixelColor(x, y);
+ uint8_t* pFill = pFillMask + x + y * head.biWidth;
+ if (*pFill==0 &&
+ cRefMin.rgbRed <= cc.rgbRed && cc.rgbRed <= cRefMax.rgbRed &&
+ cRefMin.rgbGreen <= cc.rgbGreen && cc.rgbGreen <= cRefMax.rgbGreen &&
+ cRefMin.rgbBlue <= cc.rgbBlue && cc.rgbBlue <= cRefMax.rgbBlue )
+ {
+ if (nOpacity>0){
+ if (nOpacity == 255)
+ BlindSetPixelColor(x, y, cFillColor);
+ else
+ {
+ cc.rgbRed = (uint8_t)((cFillColor.rgbRed * nOpacity + cc.rgbRed * (255-nOpacity))>>8);
+ cc.rgbGreen = (uint8_t)((cFillColor.rgbGreen * nOpacity + cc.rgbGreen * (255-nOpacity))>>8);
+ cc.rgbBlue = (uint8_t)((cFillColor.rgbBlue * nOpacity + cc.rgbBlue * (255-nOpacity))>>8);
+ BlindSetPixelColor(x, y, cc);
+ }
+ }
+ POINT pt = {x,y};
+ q.push(pt);
+ *pFill = 1;
+ }
+ }
+ }
+ }
+ }
+ }
+ if (pFillMask[xStart+yStart*head.biWidth] == 0 && nOpacity>0){
+ if (nOpacity == 255)
+ BlindSetPixelColor(xStart, yStart, cFillColor);
+ else
+ {
+ RGBQUAD cc = BlindGetPixelColor(xStart, yStart);
+ cc.rgbRed = (uint8_t)((cFillColor.rgbRed * nOpacity + cc.rgbRed * (255-nOpacity))>>8);
+ cc.rgbGreen = (uint8_t)((cFillColor.rgbGreen * nOpacity + cc.rgbGreen * (255-nOpacity))>>8);
+ cc.rgbBlue = (uint8_t)((cFillColor.rgbBlue * nOpacity + cc.rgbBlue * (255-nOpacity))>>8);
+ BlindSetPixelColor(xStart, yStart, cc);
+ }
+ }
+ pFillMask[xStart+yStart*head.biWidth] = 1;
+//------------------------------------- End of Flood Fill
+
+ //if necessary, restore the original BPP and palette
+ if (pPalette){
+ DecreaseBpp(bpp, false, pPalette);
+ delete [] pPalette;
+ }
+
+#if CXIMAGE_SUPPORT_SELECTION
+ if (bSelectFilledArea){
+ if (!SelectionIsValid()){
+ if (!SelectionCreate()){
+ return false;
+ }
+ SelectionClear();
+ info.rSelectionBox.right = head.biWidth;
+ info.rSelectionBox.top = head.biHeight;
+ info.rSelectionBox.left = info.rSelectionBox.bottom = 0;
+ }
+ RECT r;
+ SelectionGetBox(r);
+ for (int32_t y = r.bottom; y < r.top; y++){
+ uint8_t* pFill = pFillMask + r.left + y * head.biWidth;
+ for (int32_t x = r.left; x<r.right; x++){
+ if (*pFill) SelectionSet(x,y,nSelectionLevel);
+ pFill++;
+ }
+ }
+ SelectionRebuildBox();
+ }
+#endif //CXIMAGE_SUPPORT_SELECTION
+
+ free(pFillMask);
+
+ return true;
+}
+#endif //__MINGW32__
+
+////////////////////////////////////////////////////////////////////////////////
+#endif //CXIMAGE_SUPPORT_DSP
diff --git a/smelt/sdl/CxImage/ximaenc.cpp b/smelt/sdl/CxImage/ximaenc.cpp new file mode 100644 index 0000000..6064e49 --- /dev/null +++ b/smelt/sdl/CxImage/ximaenc.cpp @@ -0,0 +1,1159 @@ +// xImaCodec.cpp : Encode Decode functions
+/* 07/08/2001 v1.00 - Davide Pizzolato - www.xdp.it
+ * CxImage version 7.0.0 31/Dec/2010
+ */
+
+#include "ximage.h"
+
+#if CXIMAGE_SUPPORT_JPG
+#include "ximajpg.h"
+#endif
+
+#if CXIMAGE_SUPPORT_GIF
+#include "ximagif.h"
+#endif
+
+#if CXIMAGE_SUPPORT_PNG
+#include "ximapng.h"
+#endif
+
+#if CXIMAGE_SUPPORT_MNG
+#include "ximamng.h"
+#endif
+
+#if CXIMAGE_SUPPORT_BMP
+#include "ximabmp.h"
+#endif
+
+#if CXIMAGE_SUPPORT_ICO
+#include "ximaico.h"
+#endif
+
+#if CXIMAGE_SUPPORT_TIF
+#include "ximatif.h"
+#endif
+
+#if CXIMAGE_SUPPORT_TGA
+#include "ximatga.h"
+#endif
+
+#if CXIMAGE_SUPPORT_PCX
+#include "ximapcx.h"
+#endif
+
+#if CXIMAGE_SUPPORT_WBMP
+#include "ximawbmp.h"
+#endif
+
+#if CXIMAGE_SUPPORT_WMF
+#include "ximawmf.h" // <vho> - WMF/EMF support
+#endif
+
+#if CXIMAGE_SUPPORT_JBG
+#include "ximajbg.h"
+#endif
+
+#if CXIMAGE_SUPPORT_JASPER
+#include "ximajas.h"
+#endif
+
+#if CXIMAGE_SUPPORT_SKA
+#include "ximaska.h"
+#endif
+
+#if CXIMAGE_SUPPORT_RAW
+#include "ximaraw.h"
+#endif
+
+#if CXIMAGE_SUPPORT_PSD
+#include "ximapsd.h"
+#endif
+
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_SUPPORT_ENCODE
+////////////////////////////////////////////////////////////////////////////////
+bool CxImage::EncodeSafeCheck(CxFile *hFile)
+{
+ if (hFile==NULL) {
+ strcpy(info.szLastError,CXIMAGE_ERR_NOFILE);
+ return true;
+ }
+
+ if (pDib==NULL){
+ strcpy(info.szLastError,CXIMAGE_ERR_NOIMAGE);
+ return true;
+ }
+ return false;
+}
+////////////////////////////////////////////////////////////////////////////////
+//#ifdef WIN32
+//bool CxImage::Save(LPCWSTR filename, uint32_t imagetype)
+//{
+// FILE* hFile; //file handle to write the image
+// if ((hFile=_wfopen(filename,L"wb"))==NULL) return false;
+// bool bOK = Encode(hFile,imagetype);
+// fclose(hFile);
+// return bOK;
+//}
+//#endif //WIN32
+////////////////////////////////////////////////////////////////////////////////
+// For UNICODE support: char -> TCHAR
+/**
+ * Saves to disk the image in a specific format.
+ * \param filename: file name
+ * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS
+ * \return true if everything is ok
+ */
+bool CxImage::Save(const TCHAR * filename, uint32_t imagetype)
+{
+ FILE* hFile; //file handle to write the image
+
+#ifdef WIN32
+ if ((hFile=_tfopen(filename,_T("wb")))==NULL) return false; // For UNICODE support
+#else
+ if ((hFile=fopen(filename,"wb"))==NULL) return false;
+#endif
+
+ bool bOK = Encode(hFile,imagetype);
+ fclose(hFile);
+ return bOK;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Saves to disk the image in a specific format.
+ * \param hFile: file handle, open and enabled for writing.
+ * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS
+ * \return true if everything is ok
+ */
+bool CxImage::Encode(FILE *hFile, uint32_t imagetype)
+{
+ CxIOFile file(hFile);
+ return Encode(&file,imagetype);
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Saves to memory buffer the image in a specific format.
+ * \param buffer: output memory buffer pointer. Must be NULL,
+ * the function allocates and fill the memory,
+ * the application must free the buffer, see also FreeMemory().
+ * \param size: output memory buffer size.
+ * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS
+ * \return true if everything is ok
+ */
+bool CxImage::Encode(uint8_t * &buffer, int32_t &size, uint32_t imagetype)
+{
+ if (buffer!=NULL){
+ strcpy(info.szLastError,"the buffer must be empty");
+ return false;
+ }
+ CxMemFile file;
+ file.Open();
+ if(Encode(&file,imagetype)){
+ buffer=file.GetBuffer();
+ size=file.Size();
+ return true;
+ }
+ return false;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Saves to disk the image in a specific format.
+ * \param hFile: file handle (CxMemFile or CxIOFile), with write access.
+ * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS
+ * \return true if everything is ok
+ * \sa ENUM_CXIMAGE_FORMATS
+ */
+bool CxImage::Encode(CxFile *hFile, uint32_t imagetype)
+{
+
+#if CXIMAGE_SUPPORT_BMP
+ if (CXIMAGE_FORMAT_BMP==imagetype){
+ CxImageBMP *newima = new CxImageBMP;
+ if (!newima) return false;
+ newima->Ghost(this);
+ if (newima->Encode(hFile)){
+ delete newima;
+ return true;
+ } else {
+ strcpy(info.szLastError,newima->GetLastError());
+ delete newima;
+ return false;
+ }
+ }
+#endif
+#if CXIMAGE_SUPPORT_ICO
+ if (CXIMAGE_FORMAT_ICO==imagetype){
+ CxImageICO *newima = new CxImageICO;
+ if (!newima) return false;
+ newima->Ghost(this);
+ if (newima->Encode(hFile)){
+ delete newima;
+ return true;
+ } else {
+ strcpy(info.szLastError,newima->GetLastError());
+ delete newima;
+ return false;
+ }
+ }
+#endif
+#if CXIMAGE_SUPPORT_TIF
+ if (CXIMAGE_FORMAT_TIF==imagetype){
+ CxImageTIF *newima = new CxImageTIF;
+ if (!newima) return false;
+ newima->Ghost(this);
+ if (newima->Encode(hFile)){
+ delete newima;
+ return true;
+ } else {
+ strcpy(info.szLastError,newima->GetLastError());
+ delete newima;
+ return false;
+ }
+ }
+#endif
+#if CXIMAGE_SUPPORT_JPG
+ if (CXIMAGE_FORMAT_JPG==imagetype){
+ CxImageJPG *newima = new CxImageJPG;
+ if (!newima) return false;
+ newima->Ghost(this);
+ if (newima->Encode(hFile)){
+ delete newima;
+ return true;
+ } else {
+ strcpy(info.szLastError,newima->GetLastError());
+ delete newima;
+ return false;
+ }
+ }
+#endif
+#if CXIMAGE_SUPPORT_GIF
+ if (CXIMAGE_FORMAT_GIF==imagetype){
+ CxImageGIF *newima = new CxImageGIF;
+ if (!newima) return false;
+ newima->Ghost(this);
+ if (newima->Encode(hFile)){
+ delete newima;
+ return true;
+ } else {
+ strcpy(info.szLastError,newima->GetLastError());
+ delete newima;
+ return false;
+ }
+ }
+#endif
+#if CXIMAGE_SUPPORT_PNG
+ if (CXIMAGE_FORMAT_PNG==imagetype){
+ CxImagePNG *newima = new CxImagePNG;
+ if (!newima) return false;
+ newima->Ghost(this);
+ if (newima->Encode(hFile)){
+ delete newima;
+ return true;
+ } else {
+ strcpy(info.szLastError,newima->GetLastError());
+ delete newima;
+ return false;
+ }
+ }
+#endif
+#if CXIMAGE_SUPPORT_MNG
+ if (CXIMAGE_FORMAT_MNG==imagetype){
+ CxImageMNG *newima = new CxImageMNG;
+ if (!newima) return false;
+ newima->Ghost(this);
+ if (newima->Encode(hFile)){
+ delete newima;
+ return true;
+ } else {
+ strcpy(info.szLastError,newima->GetLastError());
+ delete newima;
+ return false;
+ }
+ }
+#endif
+#if CXIMAGE_SUPPORT_TGA
+ if (CXIMAGE_FORMAT_TGA==imagetype){
+ CxImageTGA *newima = new CxImageTGA;
+ if (!newima) return false;
+ newima->Ghost(this);
+ if (newima->Encode(hFile)){
+ delete newima;
+ return true;
+ } else {
+ strcpy(info.szLastError,newima->GetLastError());
+ delete newima;
+ return false;
+ }
+ }
+#endif
+#if CXIMAGE_SUPPORT_PCX
+ if (CXIMAGE_FORMAT_PCX==imagetype){
+ CxImagePCX *newima = new CxImagePCX;
+ if (!newima) return false;
+ newima->Ghost(this);
+ if (newima->Encode(hFile)){
+ delete newima;
+ return true;
+ } else {
+ strcpy(info.szLastError,newima->GetLastError());
+ delete newima;
+ return false;
+ }
+ }
+#endif
+#if CXIMAGE_SUPPORT_WBMP
+ if (CXIMAGE_FORMAT_WBMP==imagetype){
+ CxImageWBMP *newima = new CxImageWBMP;
+ if (!newima) return false;
+ newima->Ghost(this);
+ if (newima->Encode(hFile)){
+ delete newima;
+ return true;
+ } else {
+ strcpy(info.szLastError,newima->GetLastError());
+ delete newima;
+ return false;
+ }
+ }
+#endif
+#if CXIMAGE_SUPPORT_WMF && CXIMAGE_SUPPORT_WINDOWS // <vho> - WMF/EMF support
+ if (CXIMAGE_FORMAT_WMF==imagetype){
+ CxImageWMF *newima = new CxImageWMF;
+ if (!newima) return false;
+ newima->Ghost(this);
+ if (newima->Encode(hFile)){
+ delete newima;
+ return true;
+ } else {
+ strcpy(info.szLastError,newima->GetLastError());
+ delete newima;
+ return false;
+ }
+ }
+#endif
+#if CXIMAGE_SUPPORT_JBG
+ if (CXIMAGE_FORMAT_JBG==imagetype){
+ CxImageJBG *newima = new CxImageJBG;
+ if (!newima) return false;
+ newima->Ghost(this);
+ if (newima->Encode(hFile)){
+ delete newima;
+ return true;
+ } else {
+ strcpy(info.szLastError,newima->GetLastError());
+ delete newima;
+ return false;
+ }
+ }
+#endif
+#if CXIMAGE_SUPPORT_JASPER
+ if (
+ #if CXIMAGE_SUPPORT_JP2
+ CXIMAGE_FORMAT_JP2==imagetype ||
+ #endif
+ #if CXIMAGE_SUPPORT_JPC
+ CXIMAGE_FORMAT_JPC==imagetype ||
+ #endif
+ #if CXIMAGE_SUPPORT_PGX
+ CXIMAGE_FORMAT_PGX==imagetype ||
+ #endif
+ #if CXIMAGE_SUPPORT_PNM
+ CXIMAGE_FORMAT_PNM==imagetype ||
+ #endif
+ #if CXIMAGE_SUPPORT_RAS
+ CXIMAGE_FORMAT_RAS==imagetype ||
+ #endif
+ false ){
+ CxImageJAS *newima = new CxImageJAS;
+ if (!newima) return false;
+ newima->Ghost(this);
+ if (newima->Encode(hFile,imagetype)){
+ delete newima;
+ return true;
+ } else {
+ strcpy(info.szLastError,newima->GetLastError());
+ delete newima;
+ return false;
+ }
+ }
+#endif
+
+#if CXIMAGE_SUPPORT_SKA
+ if (CXIMAGE_FORMAT_SKA==imagetype){
+ CxImageSKA *newima = new CxImageSKA;
+ if (!newima) return false;
+ newima->Ghost(this);
+ if (newima->Encode(hFile)){
+ delete newima;
+ return true;
+ } else {
+ strcpy(info.szLastError,newima->GetLastError());
+ delete newima;
+ return false;
+ }
+ }
+#endif
+
+#if CXIMAGE_SUPPORT_RAW
+ if (CXIMAGE_FORMAT_RAW==imagetype){
+ CxImageRAW *newima = new CxImageRAW;
+ if (!newima) return false;
+ newima->Ghost(this);
+ if (newima->Encode(hFile)){
+ delete newima;
+ return true;
+ } else {
+ strcpy(info.szLastError,newima->GetLastError());
+ delete newima;
+ return false;
+ }
+ }
+#endif
+
+#if CXIMAGE_SUPPORT_PSD
+ if (CXIMAGE_FORMAT_PSD==imagetype){
+ CxImagePSD *newima = new CxImagePSD;
+ if (!newima) return false;
+ newima->Ghost(this);
+ if (newima->Encode(hFile)){
+ delete newima;
+ return true;
+ } else {
+ strcpy(info.szLastError,newima->GetLastError());
+ delete newima;
+ return false;
+ }
+ }
+#endif
+
+ strcpy(info.szLastError,"Encode: Unknown format");
+ return false;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Saves to disk or memory pagecount images, referenced by an array of CxImage pointers.
+ * \param hFile: file handle.
+ * \param pImages: array of CxImage pointers.
+ * \param pagecount: number of images.
+ * \param imagetype: can be CXIMAGE_FORMAT_TIF or CXIMAGE_FORMAT_GIF.
+ * \return true if everything is ok
+ */
+bool CxImage::Encode(FILE * hFile, CxImage ** pImages, int32_t pagecount, uint32_t imagetype)
+{
+ CxIOFile file(hFile);
+ return Encode(&file, pImages, pagecount,imagetype);
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Saves to disk or memory pagecount images, referenced by an array of CxImage pointers.
+ * \param hFile: file handle (CxMemFile or CxIOFile), with write access.
+ * \param pImages: array of CxImage pointers.
+ * \param pagecount: number of images.
+ * \param imagetype: can be CXIMAGE_FORMAT_TIF, CXIMAGE_FORMAT_GIF or CXIMAGE_FORMAT_ICO.
+ * \return true if everything is ok
+ */
+bool CxImage::Encode(CxFile * hFile, CxImage ** pImages, int32_t pagecount, uint32_t imagetype)
+{
+#if CXIMAGE_SUPPORT_TIF
+ if (imagetype==CXIMAGE_FORMAT_TIF){
+ CxImageTIF newima;
+ newima.Ghost(this);
+ if (newima.Encode(hFile,pImages,pagecount)){
+ return true;
+ } else {
+ strcpy(info.szLastError,newima.GetLastError());
+ return false;
+ }
+ }
+#endif
+#if CXIMAGE_SUPPORT_GIF
+ if (imagetype==CXIMAGE_FORMAT_GIF){
+ CxImageGIF newima;
+ newima.Ghost(this);
+ if (newima.Encode(hFile,pImages,pagecount)){
+ return true;
+ } else {
+ strcpy(info.szLastError,newima.GetLastError());
+ return false;
+ }
+ }
+#endif
+#if CXIMAGE_SUPPORT_ICO
+ if (imagetype==CXIMAGE_FORMAT_ICO){
+ CxImageICO newima;
+ newima.Ghost(this);
+ if (newima.Encode(hFile,pImages,pagecount)){
+ return true;
+ } else {
+ strcpy(info.szLastError,newima.GetLastError());
+ return false;
+ }
+ }
+#endif
+ strcpy(info.szLastError,"Multipage Encode, Unsupported operation for this format");
+ return false;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * exports the image into a RGBA buffer, Useful for OpenGL applications.
+ * \param buffer: output memory buffer pointer. Must be NULL,
+ * the function allocates and fill the memory,
+ * the application must free the buffer, see also FreeMemory().
+ * \param size: output memory buffer size.
+ * \param bFlipY: direction of Y axis. default = false.
+ * \return true if everything is ok
+ */
+bool CxImage::Encode2RGBA(uint8_t * &buffer, int32_t &size, bool bFlipY)
+{
+ if (buffer!=NULL){
+ strcpy(info.szLastError,"the buffer must be empty");
+ return false;
+ }
+ CxMemFile file;
+ file.Open();
+ if(Encode2RGBA(&file,bFlipY)){
+ buffer=file.GetBuffer();
+ size=file.Size();
+ return true;
+ }
+ return false;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * exports the image into a RGBA buffer, Useful for OpenGL applications.
+ * \param hFile: file handle (CxMemFile or CxIOFile), with write access.
+ * \param bFlipY: direction of Y axis. default = false.
+ * \return true if everything is ok
+ */
+bool CxImage::Encode2RGBA(CxFile *hFile, bool bFlipY)
+{
+ if (EncodeSafeCheck(hFile)) return false;
+
+ for (int32_t y1 = 0; y1 < head.biHeight; y1++) {
+ int32_t y = bFlipY ? head.biHeight - 1 - y1 : y1;
+ for(int32_t x = 0; x < head.biWidth; x++) {
+ RGBQUAD color = BlindGetPixelColor(x,y);
+ hFile->PutC(color.rgbRed);
+ hFile->PutC(color.rgbGreen);
+ hFile->PutC(color.rgbBlue);
+ hFile->PutC(color.rgbReserved);
+ }
+ }
+ return true;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+#endif //CXIMAGE_SUPPORT_ENCODE
+////////////////////////////////////////////////////////////////////////////////
+
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_SUPPORT_DECODE
+////////////////////////////////////////////////////////////////////////////////
+// For UNICODE support: char -> TCHAR
+/**
+ * Reads from disk the image in a specific format.
+ * - If decoding fails using the specified image format,
+ * the function will try the automatic file format recognition.
+ *
+ * \param filename: file name
+ * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS
+ * \return true if everything is ok
+ */
+bool CxImage::Load(const TCHAR * filename, uint32_t imagetype)
+//bool CxImage::Load(const char * filename, uint32_t imagetype)
+{
+ /*FILE* hFile; //file handle to read the image
+ if ((hFile=fopen(filename,"rb"))==NULL) return false;
+ bool bOK = Decode(hFile,imagetype);
+ fclose(hFile);*/
+
+ /* automatic file type recognition */
+ bool bOK = false;
+ if ( GetTypeIndexFromId(imagetype) ){
+ FILE* hFile; //file handle to read the image
+
+#ifdef WIN32
+ if ((hFile=_tfopen(filename,_T("rb")))==NULL) return false; // For UNICODE support
+#else
+ if ((hFile=fopen(filename,"rb"))==NULL) return false;
+#endif
+
+ bOK = Decode(hFile,imagetype);
+ fclose(hFile);
+ if (bOK) return bOK;
+ }
+
+ char szError[256];
+ strcpy(szError,info.szLastError); //save the first error
+
+ // if failed, try automatic recognition of the file...
+ FILE* hFile;
+
+#ifdef WIN32
+ if ((hFile=_tfopen(filename,_T("rb")))==NULL) return false; // For UNICODE support
+#else
+ if ((hFile=fopen(filename,"rb"))==NULL) return false;
+#endif
+
+ bOK = Decode(hFile,CXIMAGE_FORMAT_UNKNOWN);
+ fclose(hFile);
+
+ if (!bOK && imagetype > 0) strcpy(info.szLastError,szError); //restore the first error
+
+ return bOK;
+}
+////////////////////////////////////////////////////////////////////////////////
+#ifdef WIN32
+//bool CxImage::Load(LPCWSTR filename, uint32_t imagetype)
+//{
+// /*FILE* hFile; //file handle to read the image
+// if ((hFile=_wfopen(filename, L"rb"))==NULL) return false;
+// bool bOK = Decode(hFile,imagetype);
+// fclose(hFile);*/
+//
+// /* automatic file type recognition */
+// bool bOK = false;
+// if ( GetTypeIndexFromId(imagetype) ){
+// FILE* hFile; //file handle to read the image
+// if ((hFile=_wfopen(filename,L"rb"))==NULL) return false;
+// bOK = Decode(hFile,imagetype);
+// fclose(hFile);
+// if (bOK) return bOK;
+// }
+//
+// char szError[256];
+// strcpy(szError,info.szLastError); //save the first error
+//
+// // if failed, try automatic recognition of the file...
+// FILE* hFile; //file handle to read the image
+// if ((hFile=_wfopen(filename,L"rb"))==NULL) return false;
+// bOK = Decode(hFile,CXIMAGE_FORMAT_UNKNOWN);
+// fclose(hFile);
+//
+// if (!bOK && imagetype > 0) strcpy(info.szLastError,szError); //restore the first error
+//
+// return bOK;
+//}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Loads an image from the application resources.
+ * \param hRes: the resource handle returned by FindResource().
+ * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS.
+ * \param hModule: NULL for internal resource, or external application/DLL hinstance returned by LoadLibray.
+ * \return true if everything is ok
+ */
+bool CxImage::LoadResource(HRSRC hRes, uint32_t imagetype, HMODULE hModule)
+{
+ uint32_t rsize=SizeofResource(hModule,hRes);
+ HGLOBAL hMem=::LoadResource(hModule,hRes);
+ if (hMem){
+ char* lpVoid=(char*)LockResource(hMem);
+ if (lpVoid){
+ // FILE* fTmp=tmpfile(); doesn't work with network
+ /*char tmpPath[MAX_PATH] = {0};
+ char tmpFile[MAX_PATH] = {0};
+ GetTempPath(MAX_PATH,tmpPath);
+ GetTempFileName(tmpPath,"IMG",0,tmpFile);
+ FILE* fTmp=fopen(tmpFile,"w+b");
+ if (fTmp){
+ fwrite(lpVoid,rsize,1,fTmp);
+ fseek(fTmp,0,SEEK_SET);
+ bool bOK = Decode(fTmp,imagetype);
+ fclose(fTmp);
+ DeleteFile(tmpFile);
+ return bOK;
+ }*/
+
+ CxMemFile fTmp((uint8_t*)lpVoid,rsize);
+ return Decode(&fTmp,imagetype);
+ }
+ } else strcpy(info.szLastError,"Unable to load resource!");
+ return false;
+}
+#endif //WIN32
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Constructor from file name, see Load()
+ * \param filename: file name
+ * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS
+ */
+//
+// > filename: file name
+// > imagetype: specify the image format (CXIMAGE_FORMAT_BMP,...)
+// For UNICODE support: char -> TCHAR
+CxImage::CxImage(const TCHAR * filename, uint32_t imagetype)
+//CxImage::CxImage(const char * filename, uint32_t imagetype)
+{
+ Startup(imagetype);
+ Load(filename,imagetype);
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Constructor from file handle, see Decode()
+ * \param stream: file handle, with read access.
+ * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS
+ */
+CxImage::CxImage(FILE * stream, uint32_t imagetype)
+{
+ Startup(imagetype);
+ Decode(stream,imagetype);
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Constructor from CxFile object, see Decode()
+ * \param stream: file handle (CxMemFile or CxIOFile), with read access.
+ * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS
+ */
+CxImage::CxImage(CxFile * stream, uint32_t imagetype)
+{
+ Startup(imagetype);
+ Decode(stream,imagetype);
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Constructor from memory buffer, see Decode()
+ * \param buffer: memory buffer
+ * \param size: size of buffer
+ * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS
+ */
+CxImage::CxImage(uint8_t * buffer, uint32_t size, uint32_t imagetype)
+{
+ Startup(imagetype);
+ CxMemFile stream(buffer,size);
+ Decode(&stream,imagetype);
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Loads an image from memory buffer
+ * \param buffer: memory buffer
+ * \param size: size of buffer
+ * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS
+ * \return true if everything is ok
+ */
+bool CxImage::Decode(uint8_t * buffer, uint32_t size, uint32_t imagetype)
+{
+ CxMemFile file(buffer,size);
+ return Decode(&file,imagetype);
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Loads an image from file handle.
+ * \param hFile: file handle, with read access.
+ * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS
+ * \return true if everything is ok
+ */
+bool CxImage::Decode(FILE *hFile, uint32_t imagetype)
+{
+ CxIOFile file(hFile);
+ return Decode(&file,imagetype);
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Loads an image from CxFile object
+ * \param hFile: file handle (CxMemFile or CxIOFile), with read access.
+ * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS
+ * \return true if everything is ok
+ * \sa ENUM_CXIMAGE_FORMATS
+ */
+bool CxImage::Decode(CxFile *hFile, uint32_t imagetype)
+{
+ if (hFile == NULL){
+ strcpy(info.szLastError,CXIMAGE_ERR_NOFILE);
+ return false;
+ }
+
+ uint32_t pos = hFile->Tell();
+
+#if CXIMAGE_SUPPORT_BMP
+ if (CXIMAGE_FORMAT_UNKNOWN==imagetype || CXIMAGE_FORMAT_BMP==imagetype){
+ CxImageBMP *newima = new CxImageBMP;
+ if (!newima)
+ return false;
+ newima->CopyInfo(*this);
+ if (newima->Decode(hFile)) {
+ Transfer(*newima);
+ delete newima;
+ return true;
+ } else {
+ strcpy(info.szLastError,newima->GetLastError());
+ hFile->Seek(pos,SEEK_SET);
+ delete newima;
+ if (CXIMAGE_FORMAT_UNKNOWN!=imagetype)
+ return false;
+ }
+ }
+#endif
+#if CXIMAGE_SUPPORT_JPG
+ if (CXIMAGE_FORMAT_UNKNOWN==imagetype || CXIMAGE_FORMAT_JPG==imagetype){
+ CxImageJPG *newima = new CxImageJPG;
+ if (!newima)
+ return false;
+ newima->CopyInfo(*this);
+ if (newima->Decode(hFile)) {
+ Transfer(*newima);
+ delete newima;
+ return true;
+ } else {
+ strcpy(info.szLastError,newima->GetLastError());
+ hFile->Seek(pos,SEEK_SET);
+ delete newima;
+ if (CXIMAGE_FORMAT_UNKNOWN!=imagetype)
+ return false;
+ }
+ }
+#endif
+#if CXIMAGE_SUPPORT_ICO
+ if (CXIMAGE_FORMAT_UNKNOWN==imagetype || CXIMAGE_FORMAT_ICO==imagetype){
+ CxImageICO *newima = new CxImageICO;
+ if (!newima)
+ return false;
+ newima->CopyInfo(*this);
+ if (newima->Decode(hFile)) {
+ Transfer(*newima);
+ delete newima;
+ return true;
+ } else {
+ info.nNumFrames = newima->info.nNumFrames;
+ strcpy(info.szLastError,newima->GetLastError());
+ hFile->Seek(pos,SEEK_SET);
+ delete newima;
+ if (CXIMAGE_FORMAT_UNKNOWN!=imagetype)
+ return false;
+ }
+ }
+#endif
+#if CXIMAGE_SUPPORT_GIF
+ if (CXIMAGE_FORMAT_UNKNOWN==imagetype || CXIMAGE_FORMAT_GIF==imagetype){
+ CxImageGIF *newima = new CxImageGIF;
+ if (!newima)
+ return false;
+ newima->CopyInfo(*this);
+ if (newima->Decode(hFile)) {
+ Transfer(*newima);
+ delete newima;
+ return true;
+ } else {
+ info.nNumFrames = newima->info.nNumFrames;
+ strcpy(info.szLastError,newima->GetLastError());
+ hFile->Seek(pos,SEEK_SET);
+ delete newima;
+ if (CXIMAGE_FORMAT_UNKNOWN!=imagetype)
+ return false;
+ }
+ }
+#endif
+#if CXIMAGE_SUPPORT_PNG
+ if (CXIMAGE_FORMAT_UNKNOWN==imagetype || CXIMAGE_FORMAT_PNG==imagetype){
+ CxImagePNG *newima = new CxImagePNG;
+ if (!newima)
+ return false;
+ newima->CopyInfo(*this);
+ if (newima->Decode(hFile)) {
+ Transfer(*newima);
+ delete newima;
+ return true;
+ } else {
+ strcpy(info.szLastError,newima->GetLastError());
+ hFile->Seek(pos,SEEK_SET);
+ delete newima;
+ if (CXIMAGE_FORMAT_UNKNOWN!=imagetype)
+ return false;
+ }
+ }
+#endif
+#if CXIMAGE_SUPPORT_TIF
+ if (CXIMAGE_FORMAT_UNKNOWN==imagetype || CXIMAGE_FORMAT_TIF==imagetype){
+ CxImageTIF *newima = new CxImageTIF;
+ if (!newima)
+ return false;
+ newima->CopyInfo(*this);
+ if (newima->Decode(hFile)) {
+ Transfer(*newima);
+ delete newima;
+ return true;
+ } else {
+ info.nNumFrames = newima->info.nNumFrames;
+ strcpy(info.szLastError,newima->GetLastError());
+ hFile->Seek(pos,SEEK_SET);
+ delete newima;
+ if (CXIMAGE_FORMAT_UNKNOWN!=imagetype)
+ return false;
+ }
+ }
+#endif
+#if CXIMAGE_SUPPORT_MNG
+ if (CXIMAGE_FORMAT_UNKNOWN==imagetype || CXIMAGE_FORMAT_MNG==imagetype){
+ CxImageMNG *newima = new CxImageMNG;
+ if (!newima)
+ return false;
+ newima->CopyInfo(*this);
+ if (newima->Decode(hFile)) {
+ Transfer(*newima);
+ delete newima;
+ return true;
+ } else {
+ info.nNumFrames = newima->info.nNumFrames;
+ strcpy(info.szLastError,newima->GetLastError());
+ hFile->Seek(pos,SEEK_SET);
+ delete newima;
+ if (CXIMAGE_FORMAT_UNKNOWN!=imagetype)
+ return false;
+ }
+ }
+#endif
+#if CXIMAGE_SUPPORT_TGA
+ if (CXIMAGE_FORMAT_UNKNOWN==imagetype || CXIMAGE_FORMAT_TGA==imagetype){
+ CxImageTGA *newima = new CxImageTGA;
+ if (!newima)
+ return false;
+ newima->CopyInfo(*this);
+ if (newima->Decode(hFile)) {
+ Transfer(*newima);
+ delete newima;
+ return true;
+ } else {
+ strcpy(info.szLastError,newima->GetLastError());
+ hFile->Seek(pos,SEEK_SET);
+ delete newima;
+ if (CXIMAGE_FORMAT_UNKNOWN!=imagetype)
+ return false;
+ }
+ }
+#endif
+#if CXIMAGE_SUPPORT_PCX
+ if (CXIMAGE_FORMAT_UNKNOWN==imagetype || CXIMAGE_FORMAT_PCX==imagetype){
+ CxImagePCX *newima = new CxImagePCX;
+ if (!newima)
+ return false;
+ newima->CopyInfo(*this);
+ if (newima->Decode(hFile)) {
+ Transfer(*newima);
+ delete newima;
+ return true;
+ } else {
+ strcpy(info.szLastError,newima->GetLastError());
+ hFile->Seek(pos,SEEK_SET);
+ delete newima;
+ if (CXIMAGE_FORMAT_UNKNOWN!=imagetype)
+ return false;
+ }
+ }
+#endif
+#if CXIMAGE_SUPPORT_WBMP
+ if (CXIMAGE_FORMAT_UNKNOWN==imagetype || CXIMAGE_FORMAT_WBMP==imagetype){
+ CxImageWBMP *newima = new CxImageWBMP;
+ if (!newima)
+ return false;
+ newima->CopyInfo(*this);
+ if (newima->Decode(hFile)) {
+ Transfer(*newima);
+ delete newima;
+ return true;
+ } else {
+ strcpy(info.szLastError,newima->GetLastError());
+ hFile->Seek(pos,SEEK_SET);
+ delete newima;
+ if (CXIMAGE_FORMAT_UNKNOWN!=imagetype)
+ return false;
+ }
+ }
+#endif
+#if CXIMAGE_SUPPORT_WMF && CXIMAGE_SUPPORT_WINDOWS
+ if (CXIMAGE_FORMAT_UNKNOWN==imagetype || CXIMAGE_FORMAT_WMF==imagetype){
+ CxImageWMF *newima = new CxImageWMF;
+ if (!newima)
+ return false;
+ newima->CopyInfo(*this);
+ if (newima->Decode(hFile)) {
+ Transfer(*newima);
+ delete newima;
+ return true;
+ } else {
+ strcpy(info.szLastError,newima->GetLastError());
+ hFile->Seek(pos,SEEK_SET);
+ delete newima;
+ if (CXIMAGE_FORMAT_UNKNOWN!=imagetype)
+ return false;
+ }
+ }
+#endif
+#if CXIMAGE_SUPPORT_JBG
+ if (CXIMAGE_FORMAT_UNKNOWN==imagetype || CXIMAGE_FORMAT_JBG==imagetype){
+ CxImageJBG *newima = new CxImageJBG;
+ if (!newima)
+ return false;
+ newima->CopyInfo(*this);
+ if (newima->Decode(hFile)) {
+ Transfer(*newima);
+ delete newima;
+ return true;
+ } else {
+ strcpy(info.szLastError,newima->GetLastError());
+ hFile->Seek(pos,SEEK_SET);
+ delete newima;
+ if (CXIMAGE_FORMAT_UNKNOWN!=imagetype)
+ return false;
+ }
+ }
+#endif
+#if CXIMAGE_SUPPORT_JASPER
+ if (CXIMAGE_FORMAT_UNKNOWN==imagetype ||
+#if CXIMAGE_SUPPORT_JP2
+ CXIMAGE_FORMAT_JP2==imagetype ||
+#endif
+#if CXIMAGE_SUPPORT_JPC
+ CXIMAGE_FORMAT_JPC==imagetype ||
+#endif
+#if CXIMAGE_SUPPORT_PGX
+ CXIMAGE_FORMAT_PGX==imagetype ||
+#endif
+#if CXIMAGE_SUPPORT_PNM
+ CXIMAGE_FORMAT_PNM==imagetype ||
+#endif
+#if CXIMAGE_SUPPORT_RAS
+ CXIMAGE_FORMAT_RAS==imagetype ||
+#endif
+ false ){
+ CxImageJAS *newima = new CxImageJAS;
+ if (!newima)
+ return false;
+ newima->CopyInfo(*this);
+ if (newima->Decode(hFile)) {
+ Transfer(*newima);
+ delete newima;
+ return true;
+ } else {
+ strcpy(info.szLastError,newima->GetLastError());
+ hFile->Seek(pos,SEEK_SET);
+ delete newima;
+ if (CXIMAGE_FORMAT_UNKNOWN!=imagetype)
+ return false;
+ }
+ }
+#endif
+#if CXIMAGE_SUPPORT_SKA
+ if (CXIMAGE_FORMAT_UNKNOWN==imagetype || CXIMAGE_FORMAT_SKA==imagetype){
+ CxImageSKA *newima = new CxImageSKA;
+ if (!newima)
+ return false;
+ newima->CopyInfo(*this);
+ if (newima->Decode(hFile)) {
+ Transfer(*newima);
+ delete newima;
+ return true;
+ } else {
+ strcpy(info.szLastError,newima->GetLastError());
+ hFile->Seek(pos,SEEK_SET);
+ delete newima;
+ if (CXIMAGE_FORMAT_UNKNOWN!=imagetype)
+ return false;
+ }
+ }
+#endif
+#if CXIMAGE_SUPPORT_RAW
+ if (CXIMAGE_FORMAT_UNKNOWN==imagetype || CXIMAGE_FORMAT_RAW==imagetype){
+ CxImageRAW *newima = new CxImageRAW;
+ if (!newima)
+ return false;
+ newima->CopyInfo(*this);
+ if (newima->Decode(hFile)) {
+ Transfer(*newima);
+ delete newima;
+ return true;
+ } else {
+ strcpy(info.szLastError,newima->GetLastError());
+ hFile->Seek(pos,SEEK_SET);
+ delete newima;
+ if (CXIMAGE_FORMAT_UNKNOWN!=imagetype)
+ return false;
+ }
+ }
+#endif
+#if CXIMAGE_SUPPORT_PSD
+ if (CXIMAGE_FORMAT_UNKNOWN==imagetype || CXIMAGE_FORMAT_PSD==imagetype){
+ CxImagePSD *newima = new CxImagePSD;
+ if (!newima)
+ return false;
+ newima->CopyInfo(*this);
+ if (newima->Decode(hFile)) {
+ Transfer(*newima);
+ delete newima;
+ return true;
+ } else {
+ strcpy(info.szLastError,newima->GetLastError());
+ hFile->Seek(pos,SEEK_SET);
+ delete newima;
+ if (CXIMAGE_FORMAT_UNKNOWN!=imagetype)
+ return false;
+ }
+ }
+#endif
+
+ strcpy(info.szLastError,"Decode: Unknown or wrong format");
+ return false;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Loads an image from CxFile object
+ * \param hFile: file handle (CxMemFile or CxIOFile), with read access.
+ * \param imagetype: file format, default = 0 (CXIMAGE_FORMAT_UNKNOWN)
+ * \return : if imagetype is not 0, the function returns true when imagetype
+ * matches the file image format. If imagetype is 0, the function returns true
+ * when the file image format is recognized as a supported format.
+ * If the returned value is true, use GetHeight(), GetWidth() or GetType()
+ * to retrieve the basic image information.
+ * \sa ENUM_CXIMAGE_FORMATS
+ */
+bool CxImage::CheckFormat(CxFile * hFile, uint32_t imagetype)
+{
+ SetType(CXIMAGE_FORMAT_UNKNOWN);
+ SetEscape(-1);
+
+ if (!Decode(hFile,imagetype))
+ return false;
+
+ if (GetType() == CXIMAGE_FORMAT_UNKNOWN ||
+ ((imagetype!=CXIMAGE_FORMAT_UNKNOWN)&&(GetType() != imagetype)))
+ return false;
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+bool CxImage::CheckFormat(uint8_t * buffer, uint32_t size, uint32_t imagetype)
+{
+ if (buffer==NULL || size==0){
+ strcpy(info.szLastError,"invalid or empty buffer");
+ return false;
+ }
+ CxMemFile file(buffer,size);
+ return CheckFormat(&file,imagetype);
+}
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_SUPPORT_EXIF
+bool CxImage::GetExifThumbnail(const TCHAR *filename, const TCHAR *outname, int32_t type)
+{
+ switch (type){
+#if CXIMAGE_SUPPORT_RAW
+ case CXIMAGE_FORMAT_RAW:
+ {
+ CxImageRAW image;
+ return image.GetExifThumbnail(filename, outname, type);
+ }
+#endif //CXIMAGE_SUPPORT_RAW
+#if CXIMAGE_SUPPORT_JPG
+ case CXIMAGE_FORMAT_JPG:
+ {
+ CxImageJPG image;
+ return image.GetExifThumbnail(filename, outname, type);
+ }
+#endif //CXIMAGE_SUPPORT_JPG
+ default:
+ return false;
+ }
+}
+#endif //CXIMAGE_SUPPORT_EXIF
+
+////////////////////////////////////////////////////////////////////////////////
+#endif //CXIMAGE_SUPPORT_DECODE
+////////////////////////////////////////////////////////////////////////////////
diff --git a/smelt/sdl/CxImage/ximaexif.cpp b/smelt/sdl/CxImage/ximaexif.cpp new file mode 100644 index 0000000..f880d72 --- /dev/null +++ b/smelt/sdl/CxImage/ximaexif.cpp @@ -0,0 +1,877 @@ +/*
+ * File: ximaexif.cpp
+ * Purpose: EXIF reader
+ * 18/Aug/2002 Davide Pizzolato - www.xdp.it
+ * CxImage version 7.0.0 31/Dec/2010
+ * based on jhead-1.8 by Matthias Wandel <mwandel(at)rim(dot)net>
+ */
+
+#include "ximajpg.h"
+
+#if CXIMAGEJPG_SUPPORT_EXIF
+
+////////////////////////////////////////////////////////////////////////////////
+CxImageJPG::CxExifInfo::CxExifInfo(EXIFINFO* info)
+{
+ if (info) {
+ m_exifinfo = info;
+ freeinfo = false;
+ } else {
+ m_exifinfo = new EXIFINFO;
+ memset(m_exifinfo,0,sizeof(EXIFINFO));
+ freeinfo = true;
+ }
+
+ m_szLastError[0]='\0';
+ ExifImageWidth = MotorolaOrder = 0;
+ SectionsRead=0;
+ memset(&Sections, 0, MAX_SECTIONS * sizeof(Section_t));
+}
+////////////////////////////////////////////////////////////////////////////////
+CxImageJPG::CxExifInfo::~CxExifInfo()
+{
+ for(int32_t i=0;i<MAX_SECTIONS;i++) if(Sections[i].Data) free(Sections[i].Data);
+ if (freeinfo) delete m_exifinfo;
+}
+////////////////////////////////////////////////////////////////////////////////
+bool CxImageJPG::CxExifInfo::DecodeExif(CxFile * hFile, int32_t nReadMode)
+{
+ int32_t a;
+ int32_t HaveCom = FALSE;
+
+ a = hFile->GetC();
+
+ if (a != 0xff || hFile->GetC() != M_SOI){
+ return FALSE;
+ }
+
+ for(;;){
+ int32_t itemlen;
+ int32_t marker = 0;
+ int32_t ll,lh, got;
+ uint8_t * Data;
+
+ if (SectionsRead >= MAX_SECTIONS){
+ strcpy(m_szLastError,"Too many sections in jpg file");
+ return false;
+ }
+
+ for (a=0;a<7;a++){
+ marker = hFile->GetC();
+ if (marker != 0xff) break;
+
+ if (a >= 6){
+ printf("too many padding bytes\n");
+ return false;
+ }
+ }
+
+ if (marker == 0xff){
+ // 0xff is legal padding, but if we get that many, something's wrong.
+ strcpy(m_szLastError,"too many padding bytes!");
+ return false;
+ }
+
+ Sections[SectionsRead].Type = marker;
+
+ // Read the length of the section.
+ lh = hFile->GetC();
+ ll = hFile->GetC();
+
+ itemlen = (lh << 8) | ll;
+
+ if (itemlen < 2){
+ strcpy(m_szLastError,"invalid marker");
+ return false;
+ }
+
+ Sections[SectionsRead].Size = itemlen;
+
+ Data = (uint8_t *)malloc(itemlen);
+ if (Data == NULL){
+ strcpy(m_szLastError,"Could not allocate memory");
+ return false;
+ }
+ Sections[SectionsRead].Data = Data;
+
+ // Store first two pre-read bytes.
+ Data[0] = (uint8_t)lh;
+ Data[1] = (uint8_t)ll;
+
+ got = hFile->Read(Data+2, 1, itemlen-2); // Read the whole section.
+ if (got != itemlen-2){
+ strcpy(m_szLastError,"Premature end of file?");
+ return false;
+ }
+ SectionsRead += 1;
+
+ switch(marker){
+
+ case M_SOS: // stop before hitting compressed data
+ // If reading entire image is requested, read the rest of the data.
+ if (nReadMode & EXIF_READ_IMAGE){
+ int32_t cp, ep, size;
+ // Determine how much file is left.
+ cp = hFile->Tell();
+ hFile->Seek(0, SEEK_END);
+ ep = hFile->Tell();
+ hFile->Seek(cp, SEEK_SET);
+
+ size = ep-cp;
+ Data = (uint8_t *)malloc(size);
+ if (Data == NULL){
+ strcpy(m_szLastError,"could not allocate data for entire image");
+ return false;
+ }
+
+ got = hFile->Read(Data, 1, size);
+ if (got != size){
+ strcpy(m_szLastError,"could not read the rest of the image");
+ return false;
+ }
+
+ Sections[SectionsRead].Data = Data;
+ Sections[SectionsRead].Size = size;
+ Sections[SectionsRead].Type = PSEUDO_IMAGE_MARKER;
+ SectionsRead ++;
+ }
+ return true;
+
+ case M_EOI: // in case it's a tables-only JPEG stream
+ printf("No image in jpeg!\n");
+ return FALSE;
+
+ case M_COM: // Comment section
+ if (HaveCom || ((nReadMode & EXIF_READ_EXIF) == 0)){
+ // Discard this section.
+ free(Sections[--SectionsRead].Data);
+ Sections[SectionsRead].Data=0;
+ }else{
+ process_COM(Data, itemlen);
+ HaveCom = TRUE;
+ }
+ break;
+
+ case M_JFIF:
+ // Regular jpegs always have this tag, exif images have the exif
+ // marker instead, althogh ACDsee will write images with both markers.
+ // this program will re-create this marker on absence of exif marker.
+ // hence no need to keep the copy from the file.
+ free(Sections[--SectionsRead].Data);
+ Sections[SectionsRead].Data=0;
+ break;
+
+ case M_EXIF:
+ // Seen files from some 'U-lead' software with Vivitar scanner
+ // that uses marker 31 for non exif stuff. Thus make sure
+ // it says 'Exif' in the section before treating it as exif.
+ if ((nReadMode & EXIF_READ_EXIF) && memcmp(Data+2, "Exif", 4) == 0){
+ m_exifinfo->IsExif = process_EXIF((uint8_t *)Data+2, itemlen);
+ }else{
+ // Discard this section.
+ free(Sections[--SectionsRead].Data);
+ Sections[SectionsRead].Data=0;
+ }
+ break;
+
+ case M_SOF0:
+ case M_SOF1:
+ case M_SOF2:
+ case M_SOF3:
+ case M_SOF5:
+ case M_SOF6:
+ case M_SOF7:
+ case M_SOF9:
+ case M_SOF10:
+ case M_SOF11:
+ case M_SOF13:
+ case M_SOF14:
+ case M_SOF15:
+ process_SOFn(Data, marker);
+ break;
+ default:
+ // Skip any other sections.
+ //if (ShowTags) printf("Jpeg section marker 0x%02x size %d\n",marker, itemlen);
+ break;
+ }
+ }
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/*--------------------------------------------------------------------------
+ Process a EXIF marker
+ Describes all the drivel that most digital cameras include...
+--------------------------------------------------------------------------*/
+bool CxImageJPG::CxExifInfo::process_EXIF(uint8_t * CharBuf, uint32_t length)
+{
+ m_exifinfo->FlashUsed = 0;
+ /* If it's from a digicam, and it used flash, it says so. */
+ m_exifinfo->Comments[0] = '\0'; /* Initial value - null string */
+
+ ExifImageWidth = 0;
+
+ { /* Check the EXIF header component */
+ static const uint8_t ExifHeader[] = "Exif\0\0";
+ if (memcmp(CharBuf+0, ExifHeader,6)){
+ strcpy(m_szLastError,"Incorrect Exif header");
+ return false;
+ }
+ }
+
+ if (memcmp(CharBuf+6,"II",2) == 0){
+ MotorolaOrder = 0;
+ }else{
+ if (memcmp(CharBuf+6,"MM",2) == 0){
+ MotorolaOrder = 1;
+ }else{
+ strcpy(m_szLastError,"Invalid Exif alignment marker.");
+ return false;
+ }
+ }
+
+ /* Check the next two values for correctness. */
+ if (Get16u(CharBuf+8) != 0x2a){
+ strcpy(m_szLastError,"Invalid Exif start (1)");
+ return false;
+ }
+
+ int32_t FirstOffset = Get32u(CharBuf+10);
+ /* <Richard Collins>
+ if (FirstOffset < 8 || FirstOffset > 16){
+ // I used to ensure this was set to 8 (website I used indicated its 8)
+ // but PENTAX Optio 230 has it set differently, and uses it as offset. (Sept 11 2002)
+ strcpy(m_szLastError,"Suspicious offset of first IFD value");
+ return false;
+ }*/
+
+ uint8_t * LastExifRefd = CharBuf;
+
+ /* First directory starts 16 bytes in. Offsets start at 8 bytes in. */
+ if (!ProcessExifDir(CharBuf+14, CharBuf+6, length-6, m_exifinfo, &LastExifRefd))
+ return false;
+
+ /* <Richard Collins> give a chance for a second directory */
+ if (FirstOffset > 8) {
+ if (!ProcessExifDir(CharBuf+14+FirstOffset-8, CharBuf+6, length-6, m_exifinfo, &LastExifRefd))
+ return false;
+ }
+
+ /* This is how far the interesting (non thumbnail) part of the exif went. */
+ // int32_t ExifSettingsLength = LastExifRefd - CharBuf;
+
+ /* Compute the CCD width, in milimeters. */
+ if (m_exifinfo->FocalplaneXRes != 0){
+ m_exifinfo->CCDWidth = (float)(ExifImageWidth * m_exifinfo->FocalplaneUnits / m_exifinfo->FocalplaneXRes);
+ }
+
+ return true;
+}
+//--------------------------------------------------------------------------
+// Get 16 bits motorola order (always) for jpeg header stuff.
+//--------------------------------------------------------------------------
+int32_t CxImageJPG::CxExifInfo::Get16m(void * Short)
+{
+ return (((uint8_t *)Short)[0] << 8) | ((uint8_t *)Short)[1];
+}
+////////////////////////////////////////////////////////////////////////////////
+/*--------------------------------------------------------------------------
+ Convert a 16 bit unsigned value from file's native byte order
+--------------------------------------------------------------------------*/
+int32_t CxImageJPG::CxExifInfo::Get16u(void * Short)
+{
+ if (MotorolaOrder){
+ return (((uint8_t *)Short)[0] << 8) | ((uint8_t *)Short)[1];
+ }else{
+ return (((uint8_t *)Short)[1] << 8) | ((uint8_t *)Short)[0];
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+/*--------------------------------------------------------------------------
+ Convert a 32 bit signed value from file's native byte order
+--------------------------------------------------------------------------*/
+int32_t CxImageJPG::CxExifInfo::Get32s(void * Long)
+{
+ if (MotorolaOrder){
+ return ((( char *)Long)[0] << 24) | (((uint8_t *)Long)[1] << 16)
+ | (((uint8_t *)Long)[2] << 8 ) | (((uint8_t *)Long)[3] << 0 );
+ }else{
+ return ((( char *)Long)[3] << 24) | (((uint8_t *)Long)[2] << 16)
+ | (((uint8_t *)Long)[1] << 8 ) | (((uint8_t *)Long)[0] << 0 );
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+/*--------------------------------------------------------------------------
+ Convert a 32 bit unsigned value from file's native byte order
+--------------------------------------------------------------------------*/
+uint32_t CxImageJPG::CxExifInfo::Get32u(void * Long)
+{
+ return (uint32_t)Get32s(Long) & 0xffffffff;
+}
+////////////////////////////////////////////////////////////////////////////////
+
+/* Describes format descriptor */
+static const int32_t BytesPerFormat[] = {0,1,1,2,4,8,1,1,2,4,8,4,8};
+#define NUM_FORMATS 12
+
+#define FMT_BYTE 1
+#define FMT_STRING 2
+#define FMT_USHORT 3
+#define FMT_ULONG 4
+#define FMT_URATIONAL 5
+#define FMT_SBYTE 6
+#define FMT_UNDEFINED 7
+#define FMT_SSHORT 8
+#define FMT_SLONG 9
+#define FMT_SRATIONAL 10
+#define FMT_SINGLE 11
+#define FMT_DOUBLE 12
+
+/* Describes tag values */
+
+#define TAG_EXIF_VERSION 0x9000
+#define TAG_EXIF_OFFSET 0x8769
+#define TAG_INTEROP_OFFSET 0xa005
+
+#define TAG_MAKE 0x010F
+#define TAG_MODEL 0x0110
+
+#define TAG_ORIENTATION 0x0112
+#define TAG_XRESOLUTION 0x011A
+#define TAG_YRESOLUTION 0x011B
+#define TAG_RESOLUTIONUNIT 0x0128
+
+#define TAG_EXPOSURETIME 0x829A
+#define TAG_FNUMBER 0x829D
+
+#define TAG_SHUTTERSPEED 0x9201
+#define TAG_APERTURE 0x9202
+#define TAG_BRIGHTNESS 0x9203
+#define TAG_MAXAPERTURE 0x9205
+#define TAG_FOCALLENGTH 0x920A
+
+#define TAG_DATETIME_ORIGINAL 0x9003
+#define TAG_USERCOMMENT 0x9286
+
+#define TAG_SUBJECT_DISTANCE 0x9206
+#define TAG_FLASH 0x9209
+
+#define TAG_FOCALPLANEXRES 0xa20E
+#define TAG_FOCALPLANEYRES 0xa20F
+#define TAG_FOCALPLANEUNITS 0xa210
+#define TAG_EXIF_IMAGEWIDTH 0xA002
+#define TAG_EXIF_IMAGELENGTH 0xA003
+
+/* the following is added 05-jan-2001 vcs */
+#define TAG_EXPOSURE_BIAS 0x9204
+#define TAG_WHITEBALANCE 0x9208
+#define TAG_METERING_MODE 0x9207
+#define TAG_EXPOSURE_PROGRAM 0x8822
+#define TAG_ISO_EQUIVALENT 0x8827
+#define TAG_COMPRESSION_LEVEL 0x9102
+
+#define TAG_THUMBNAIL_OFFSET 0x0201
+#define TAG_THUMBNAIL_LENGTH 0x0202
+
+
+/*--------------------------------------------------------------------------
+ Process one of the nested EXIF directories.
+--------------------------------------------------------------------------*/
+bool CxImageJPG::CxExifInfo::ProcessExifDir(uint8_t * DirStart, uint8_t * OffsetBase, unsigned ExifLength,
+ EXIFINFO * const m_exifinfo, uint8_t ** const LastExifRefdP, int32_t NestingLevel)
+{
+ int32_t de;
+ int32_t a;
+ int32_t NumDirEntries;
+ unsigned ThumbnailOffset = 0;
+ unsigned ThumbnailSize = 0;
+
+ if (NestingLevel > 4){
+ strcpy(m_szLastError,"Maximum directory nesting exceeded (corrupt exif header)");
+ return false;
+ }
+
+ NumDirEntries = Get16u(DirStart);
+
+ if ((DirStart+2+NumDirEntries*12) > (OffsetBase+ExifLength)){
+ strcpy(m_szLastError,"Illegally sized directory");
+ return false;
+ }
+
+ for (de=0;de<NumDirEntries;de++){
+ int32_t Tag, Format, Components;
+ uint8_t * ValuePtr;
+ /* This actually can point to a variety of things; it must be
+ cast to other types when used. But we use it as a byte-by-byte
+ cursor, so we declare it as a pointer to a generic byte here.
+ */
+ int32_t ByteCount;
+ uint8_t * DirEntry;
+ DirEntry = DirStart+2+12*de;
+
+ Tag = Get16u(DirEntry);
+ Format = Get16u(DirEntry+2);
+ Components = Get32u(DirEntry+4);
+
+ if ((Format-1) >= NUM_FORMATS) {
+ /* (-1) catches illegal zero case as unsigned underflows to positive large */
+ strcpy(m_szLastError,"Illegal format code in EXIF dir");
+ return false;
+ }
+
+ ByteCount = Components * BytesPerFormat[Format];
+
+ if (ByteCount > 4){
+ unsigned OffsetVal;
+ OffsetVal = Get32u(DirEntry+8);
+ /* If its bigger than 4 bytes, the dir entry contains an offset.*/
+ if (OffsetVal+ByteCount > ExifLength){
+ /* Bogus pointer offset and / or bytecount value */
+ strcpy(m_szLastError,"Illegal pointer offset value in EXIF.");
+ return false;
+ }
+ ValuePtr = OffsetBase+OffsetVal;
+ }else{
+ /* 4 bytes or less and value is in the dir entry itself */
+ ValuePtr = DirEntry+8;
+ }
+
+ if (*LastExifRefdP < ValuePtr+ByteCount){
+ /* Keep track of last byte in the exif header that was
+ actually referenced. That way, we know where the
+ discardable thumbnail data begins.
+ */
+ *LastExifRefdP = ValuePtr+ByteCount;
+ }
+
+ /* Extract useful components of tag */
+ switch(Tag){
+
+ case TAG_MAKE:
+ strncpy(m_exifinfo->CameraMake, (char*)ValuePtr, 31);
+ break;
+
+ case TAG_MODEL:
+ strncpy(m_exifinfo->CameraModel, (char*)ValuePtr, 39);
+ break;
+
+ case TAG_EXIF_VERSION:
+ strncpy(m_exifinfo->Version,(char*)ValuePtr, 4);
+ break;
+
+ case TAG_DATETIME_ORIGINAL:
+ strncpy(m_exifinfo->DateTime, (char*)ValuePtr, 19);
+ break;
+
+ case TAG_USERCOMMENT:
+ // Olympus has this padded with trailing spaces. Remove these first.
+ for (a=ByteCount;;){
+ a--;
+ if (((char*)ValuePtr)[a] == ' '){
+ ((char*)ValuePtr)[a] = '\0';
+ }else{
+ break;
+ }
+ if (a == 0) break;
+ }
+
+ /* Copy the comment */
+ if (memcmp(ValuePtr, "ASCII",5) == 0){
+ for (a=5;a<10;a++){
+ char c;
+ c = ((char*)ValuePtr)[a];
+ if (c != '\0' && c != ' '){
+ strncpy(m_exifinfo->Comments, (char*)ValuePtr+a, 199);
+ break;
+ }
+ }
+
+ }else{
+ strncpy(m_exifinfo->Comments, (char*)ValuePtr, 199);
+ }
+ break;
+
+ case TAG_FNUMBER:
+ /* Simplest way of expressing aperture, so I trust it the most.
+ (overwrite previously computd value if there is one)
+ */
+ m_exifinfo->ApertureFNumber = (float)ConvertAnyFormat(ValuePtr, Format);
+ break;
+
+ case TAG_APERTURE:
+ case TAG_MAXAPERTURE:
+ /* More relevant info always comes earlier, so only
+ use this field if we don't have appropriate aperture
+ information yet.
+ */
+ if (m_exifinfo->ApertureFNumber == 0){
+ m_exifinfo->ApertureFNumber = (float)exp(ConvertAnyFormat(ValuePtr, Format)*log(2.0f)*0.5);
+ }
+ break;
+
+ case TAG_BRIGHTNESS:
+ m_exifinfo->Brightness = (float)ConvertAnyFormat(ValuePtr, Format);
+ break;
+
+ case TAG_FOCALLENGTH:
+ /* Nice digital cameras actually save the focal length
+ as a function of how farthey are zoomed in.
+ */
+
+ m_exifinfo->FocalLength = (float)ConvertAnyFormat(ValuePtr, Format);
+ break;
+
+ case TAG_SUBJECT_DISTANCE:
+ /* Inidcates the distacne the autofocus camera is focused to.
+ Tends to be less accurate as distance increases.
+ */
+ m_exifinfo->Distance = (float)ConvertAnyFormat(ValuePtr, Format);
+ break;
+
+ case TAG_EXPOSURETIME:
+ /* Simplest way of expressing exposure time, so I
+ trust it most. (overwrite previously computd value
+ if there is one)
+ */
+ m_exifinfo->ExposureTime =
+ (float)ConvertAnyFormat(ValuePtr, Format);
+ break;
+
+ case TAG_SHUTTERSPEED:
+ /* More complicated way of expressing exposure time,
+ so only use this value if we don't already have it
+ from somewhere else.
+ */
+ if (m_exifinfo->ExposureTime == 0){
+ m_exifinfo->ExposureTime = (float)
+ (1/exp(ConvertAnyFormat(ValuePtr, Format)*log(2.0f)));
+ }
+ break;
+
+ case TAG_FLASH:
+ if ((int32_t)ConvertAnyFormat(ValuePtr, Format) & 7){
+ m_exifinfo->FlashUsed = 1;
+ }else{
+ m_exifinfo->FlashUsed = 0;
+ }
+ break;
+
+ case TAG_ORIENTATION:
+ m_exifinfo->Orientation = (int32_t)ConvertAnyFormat(ValuePtr, Format);
+ if (m_exifinfo->Orientation < 1 || m_exifinfo->Orientation > 8){
+ strcpy(m_szLastError,"Undefined rotation value");
+ m_exifinfo->Orientation = 0;
+ }
+ break;
+
+ case TAG_EXIF_IMAGELENGTH:
+ case TAG_EXIF_IMAGEWIDTH:
+ /* Use largest of height and width to deal with images
+ that have been rotated to portrait format.
+ */
+ a = (int32_t)ConvertAnyFormat(ValuePtr, Format);
+ if (ExifImageWidth < a) ExifImageWidth = a;
+ break;
+
+ case TAG_FOCALPLANEXRES:
+ m_exifinfo->FocalplaneXRes = (float)ConvertAnyFormat(ValuePtr, Format);
+ break;
+
+ case TAG_FOCALPLANEYRES:
+ m_exifinfo->FocalplaneYRes = (float)ConvertAnyFormat(ValuePtr, Format);
+ break;
+
+ case TAG_RESOLUTIONUNIT:
+ switch((int32_t)ConvertAnyFormat(ValuePtr, Format)){
+ case 1: m_exifinfo->ResolutionUnit = 1.0f; break; /* 1 inch */
+ case 2: m_exifinfo->ResolutionUnit = 1.0f; break;
+ case 3: m_exifinfo->ResolutionUnit = 0.3937007874f; break; /* 1 centimeter*/
+ case 4: m_exifinfo->ResolutionUnit = 0.03937007874f; break; /* 1 millimeter*/
+ case 5: m_exifinfo->ResolutionUnit = 0.00003937007874f; /* 1 micrometer*/
+ }
+ break;
+
+ case TAG_FOCALPLANEUNITS:
+ switch((int32_t)ConvertAnyFormat(ValuePtr, Format)){
+ case 1: m_exifinfo->FocalplaneUnits = 1.0f; break; /* 1 inch */
+ case 2: m_exifinfo->FocalplaneUnits = 1.0f; break;
+ case 3: m_exifinfo->FocalplaneUnits = 0.3937007874f; break; /* 1 centimeter*/
+ case 4: m_exifinfo->FocalplaneUnits = 0.03937007874f; break; /* 1 millimeter*/
+ case 5: m_exifinfo->FocalplaneUnits = 0.00003937007874f; /* 1 micrometer*/
+ }
+ break;
+
+ // Remaining cases contributed by: Volker C. Schoech <schoech(at)gmx(dot)de>
+
+ case TAG_EXPOSURE_BIAS:
+ m_exifinfo->ExposureBias = (float) ConvertAnyFormat(ValuePtr, Format);
+ break;
+
+ case TAG_WHITEBALANCE:
+ m_exifinfo->Whitebalance = (int32_t)ConvertAnyFormat(ValuePtr, Format);
+ break;
+
+ case TAG_METERING_MODE:
+ m_exifinfo->MeteringMode = (int32_t)ConvertAnyFormat(ValuePtr, Format);
+ break;
+
+ case TAG_EXPOSURE_PROGRAM:
+ m_exifinfo->ExposureProgram = (int32_t)ConvertAnyFormat(ValuePtr, Format);
+ break;
+
+ case TAG_ISO_EQUIVALENT:
+ m_exifinfo->ISOequivalent = (int32_t)ConvertAnyFormat(ValuePtr, Format);
+ if ( m_exifinfo->ISOequivalent < 50 ) m_exifinfo->ISOequivalent *= 200;
+ break;
+
+ case TAG_COMPRESSION_LEVEL:
+ m_exifinfo->CompressionLevel = (int32_t)ConvertAnyFormat(ValuePtr, Format);
+ break;
+
+ case TAG_XRESOLUTION:
+ m_exifinfo->Xresolution = (float)ConvertAnyFormat(ValuePtr, Format);
+ break;
+ case TAG_YRESOLUTION:
+ m_exifinfo->Yresolution = (float)ConvertAnyFormat(ValuePtr, Format);
+ break;
+
+ case TAG_THUMBNAIL_OFFSET:
+ ThumbnailOffset = (unsigned)ConvertAnyFormat(ValuePtr, Format);
+ break;
+
+ case TAG_THUMBNAIL_LENGTH:
+ ThumbnailSize = (unsigned)ConvertAnyFormat(ValuePtr, Format);
+ break;
+
+ }
+
+ if (Tag == TAG_EXIF_OFFSET || Tag == TAG_INTEROP_OFFSET){
+ uint8_t * SubdirStart;
+ unsigned Offset = Get32u(ValuePtr);
+ if (Offset>8){
+ SubdirStart = OffsetBase + Offset;
+ if (SubdirStart < OffsetBase ||
+ SubdirStart > OffsetBase+ExifLength){
+ strcpy(m_szLastError,"Illegal subdirectory link");
+ return false;
+ }
+ ProcessExifDir(SubdirStart, OffsetBase, ExifLength, m_exifinfo, LastExifRefdP, NestingLevel+1);
+ }
+ continue;
+ }
+ }
+
+
+ {
+ /* In addition to linking to subdirectories via exif tags,
+ there's also a potential link to another directory at the end
+ of each directory. This has got to be the result of a
+ committee!
+ */
+ uint8_t * SubdirStart;
+ unsigned Offset;
+ Offset = Get16u(DirStart+2+12*NumDirEntries);
+ if (Offset){
+ SubdirStart = OffsetBase + Offset;
+ if (SubdirStart < OffsetBase
+ || SubdirStart > OffsetBase+ExifLength){
+ strcpy(m_szLastError,"Illegal subdirectory link");
+ return false;
+ }
+ ProcessExifDir(SubdirStart, OffsetBase, ExifLength, m_exifinfo, LastExifRefdP, NestingLevel+1);
+ }
+ }
+
+
+ if (ThumbnailSize && ThumbnailOffset){
+ if (ThumbnailSize + ThumbnailOffset <= ExifLength){
+ /* The thumbnail pointer appears to be valid. Store it. */
+ m_exifinfo->ThumbnailPointer = OffsetBase + ThumbnailOffset;
+ m_exifinfo->ThumbnailSize = ThumbnailSize;
+ }
+ }
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/*--------------------------------------------------------------------------
+ Evaluate number, be it int32_t, rational, or float from directory.
+--------------------------------------------------------------------------*/
+double CxImageJPG::CxExifInfo::ConvertAnyFormat(void * ValuePtr, int32_t Format)
+{
+ double Value;
+ Value = 0;
+
+ switch(Format){
+ case FMT_SBYTE: Value = *(signed char *)ValuePtr; break;
+ case FMT_BYTE: Value = *(uint8_t *)ValuePtr; break;
+
+ case FMT_USHORT: Value = Get16u(ValuePtr); break;
+ case FMT_ULONG: Value = Get32u(ValuePtr); break;
+
+ case FMT_URATIONAL:
+ case FMT_SRATIONAL:
+ {
+ int32_t Num,Den;
+ Num = Get32s(ValuePtr);
+ Den = Get32s(4+(char *)ValuePtr);
+ if (Den == 0){
+ Value = 0;
+ }else{
+ Value = (double)Num/Den;
+ }
+ break;
+ }
+
+ case FMT_SSHORT: Value = (int16_t)Get16u(ValuePtr); break;
+ case FMT_SLONG: Value = Get32s(ValuePtr); break;
+
+ /* Not sure if this is correct (never seen float used in Exif format)
+ */
+ case FMT_SINGLE: Value = (double)*(float *)ValuePtr; break;
+ case FMT_DOUBLE: Value = *(double *)ValuePtr; break;
+ }
+ return Value;
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImageJPG::CxExifInfo::process_COM (const uint8_t * Data, int32_t length)
+{
+ int32_t ch;
+ char Comment[MAX_COMMENT+1];
+ int32_t nch;
+ int32_t a;
+
+ nch = 0;
+
+ if (length > MAX_COMMENT) length = MAX_COMMENT; // Truncate if it won't fit in our structure.
+
+ for (a=2;a<length;a++){
+ ch = Data[a];
+
+ if (ch == '\r' && Data[a+1] == '\n') continue; // Remove cr followed by lf.
+
+ if (isprint(ch) || ch == '\n' || ch == '\t'){
+ Comment[nch++] = (char)ch;
+ }else{
+ Comment[nch++] = '?';
+ }
+ }
+
+ Comment[nch] = '\0'; // Null terminate
+
+ //if (ShowTags) printf("COM marker comment: %s\n",Comment);
+
+ strcpy(m_exifinfo->Comments,Comment);
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImageJPG::CxExifInfo::process_SOFn (const uint8_t * Data, int32_t marker)
+{
+ int32_t data_precision, num_components;
+
+ data_precision = Data[2];
+ m_exifinfo->Height = Get16m((void*)(Data+3));
+ m_exifinfo->Width = Get16m((void*)(Data+5));
+ num_components = Data[7];
+
+ if (num_components == 3){
+ m_exifinfo->IsColor = 1;
+ }else{
+ m_exifinfo->IsColor = 0;
+ }
+
+ m_exifinfo->Process = marker;
+
+ //if (ShowTags) printf("JPEG image is %uw * %uh, %d color components, %d bits per sample\n",
+ // ImageInfo.Width, ImageInfo.Height, num_components, data_precision);
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * this will work only on a CxImageJPG object, if the image originally has valid EXIF data
+ \verbatim
+ CxImageJPG jpg;
+ CxIOFile in,out;
+ in.Open("D:\\exif_in.jpg","rb");
+ out.Open("D:\\exif_out.jpg","w+b");
+ jpg.Decode(&in);
+ if (jpg.IsValid()){
+ jpg.RotateLeft();
+ jpg.Encode(&out);
+ }
+ \endverbatim
+*/
+bool CxImageJPG::CxExifInfo::EncodeExif(CxFile * hFile)
+{
+ int32_t a;
+
+ if (FindSection(M_SOS)==NULL){
+ strcpy(m_szLastError,"Can't write exif : didn't read all");
+ return false;
+ }
+
+ // Initial static jpeg marker.
+ hFile->PutC(0xff);
+ hFile->PutC(0xd8);
+
+ if (Sections[0].Type != M_EXIF && Sections[0].Type != M_JFIF){
+ // The image must start with an exif or jfif marker. If we threw those away, create one.
+ static uint8_t JfifHead[18] = {
+ 0xff, M_JFIF,
+ 0x00, 0x10, 'J' , 'F' , 'I' , 'F' , 0x00, 0x01,
+ 0x01, 0x01, 0x01, 0x2C, 0x01, 0x2C, 0x00, 0x00
+ };
+ hFile->Write(JfifHead, 18, 1);
+ }
+
+ // Write all the misc sections
+ for (a=0;a<SectionsRead-1;a++){
+ hFile->PutC(0xff);
+ hFile->PutC((uint8_t)(Sections[a].Type));
+ hFile->Write(Sections[a].Data, Sections[a].Size, 1);
+ }
+
+ // Write the remaining image data.
+ hFile->Write(Sections[a].Data, Sections[a].Size, 1);
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImageJPG::CxExifInfo::DiscardAllButExif()
+{
+ Section_t ExifKeeper;
+ Section_t CommentKeeper;
+ int32_t a;
+
+ memset(&ExifKeeper, 0, sizeof(ExifKeeper));
+ memset(&CommentKeeper, 0, sizeof(ExifKeeper));
+
+ for (a=0;a<SectionsRead;a++){
+ if (Sections[a].Type == M_EXIF && ExifKeeper.Type == 0){
+ ExifKeeper = Sections[a];
+ }else if (Sections[a].Type == M_COM && CommentKeeper.Type == 0){
+ CommentKeeper = Sections[a];
+ }else{
+ free(Sections[a].Data);
+ Sections[a].Data = 0;
+ }
+ }
+ SectionsRead = 0;
+ if (ExifKeeper.Type){
+ Sections[SectionsRead++] = ExifKeeper;
+ }
+ if (CommentKeeper.Type){
+ Sections[SectionsRead++] = CommentKeeper;
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+void* CxImageJPG::CxExifInfo::FindSection(int32_t SectionType)
+{
+ int32_t a;
+ for (a=0;a<SectionsRead-1;a++){
+ if (Sections[a].Type == SectionType){
+ return &Sections[a];
+ }
+ }
+ // Could not be found.
+ return NULL;
+}
+////////////////////////////////////////////////////////////////////////////////
+#endif // CXIMAGEJPG_SUPPORT_EXIF
diff --git a/smelt/sdl/CxImage/ximage.cpp b/smelt/sdl/CxImage/ximage.cpp new file mode 100644 index 0000000..904b807 --- /dev/null +++ b/smelt/sdl/CxImage/ximage.cpp @@ -0,0 +1,537 @@ +// ximage.cpp : main implementation file
+/* 07/08/2001 v1.00 - Davide Pizzolato - www.xdp.it
+ * CxImage version 7.0.0 31/Dec/2010
+ */
+
+#include "ximage.h"
+
+////////////////////////////////////////////////////////////////////////////////
+// CxImage
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Initialize the internal structures
+ */
+void CxImage::Startup(uint32_t imagetype)
+{
+ //init pointers
+ pDib = pSelection = pAlpha = NULL;
+ ppLayers = ppFrames = NULL;
+ //init structures
+ memset(&head,0,sizeof(BITMAPINFOHEADER));
+ memset(&info,0,sizeof(CXIMAGEINFO));
+ //init default attributes
+ info.dwType = imagetype;
+ info.fQuality = 90.0f;
+ info.nAlphaMax = 255;
+ info.nBkgndIndex = -1;
+ info.bEnabled = true;
+ info.nJpegScale = 1;
+ SetXDPI(CXIMAGE_DEFAULT_DPI);
+ SetYDPI(CXIMAGE_DEFAULT_DPI);
+
+ int16_t test = 1;
+ info.bLittleEndianHost = (*((char *) &test) == 1);
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Empty image constructor
+ * \param imagetype: (optional) set the image format, see ENUM_CXIMAGE_FORMATS
+ */
+CxImage::CxImage(uint32_t imagetype)
+{
+ Startup(imagetype);
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Call this function to destroy image pixels, alpha channel, selection and sub layers.
+ * - Attributes are not erased, but IsValid returns false.
+ *
+ * \return true if everything is freed, false if the image is a Ghost
+ */
+bool CxImage::Destroy()
+{
+ //free this only if it's valid and it's not a ghost
+ if (info.pGhost==NULL){
+ if (ppLayers) {
+ for(int32_t n=0; n<info.nNumLayers;n++){ delete ppLayers[n]; }
+ delete [] ppLayers; ppLayers=0; info.nNumLayers = 0;
+ }
+ if (pSelection) {free(pSelection); pSelection=0;}
+ if (pAlpha) {free(pAlpha); pAlpha=0;}
+ if (pDib) {free(pDib); pDib=0;}
+ return true;
+ }
+ return false;
+}
+////////////////////////////////////////////////////////////////////////////////
+bool CxImage::DestroyFrames()
+{
+ if (info.pGhost==NULL) {
+ if (ppFrames) {
+ for (int32_t n=0; n<info.nNumFrames; n++) { delete ppFrames[n]; }
+ delete [] ppFrames; ppFrames = NULL; info.nNumFrames = 0;
+ }
+ return true;
+ }
+ return false;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Sized image constructor
+ * \param dwWidth: width
+ * \param dwHeight: height
+ * \param wBpp: bit per pixel, can be 1, 4, 8, 24
+ * \param imagetype: (optional) set the image format, see ENUM_CXIMAGE_FORMATS
+ */
+CxImage::CxImage(uint32_t dwWidth, uint32_t dwHeight, uint32_t wBpp, uint32_t imagetype)
+{
+ Startup(imagetype);
+ Create(dwWidth,dwHeight,wBpp,imagetype);
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * image constructor from existing source
+ * \param src: source image.
+ * \param copypixels: copy the pixels from the source image into the new image.
+ * \param copyselection: copy the selection from source
+ * \param copyalpha: copy the alpha channel from source
+ * \sa Copy
+ */
+CxImage::CxImage(const CxImage &src, bool copypixels, bool copyselection, bool copyalpha)
+{
+ Startup(src.GetType());
+ Copy(src,copypixels,copyselection,copyalpha);
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Copies the image from an exsisting source
+ * \param src: source image.
+ * \param copypixels: copy the pixels from the source image into the new image.
+ * \param copyselection: copy the selection from source
+ * \param copyalpha: copy the alpha channel from source
+ */
+void CxImage::Copy(const CxImage &src, bool copypixels, bool copyselection, bool copyalpha)
+{
+ // if the source is a ghost, the copy is still a ghost
+ if (src.info.pGhost){
+ Ghost(&src);
+ return;
+ }
+ //copy the attributes
+ memcpy(&info,&src.info,sizeof(CXIMAGEINFO));
+ memcpy(&head,&src.head,sizeof(BITMAPINFOHEADER)); // [andy] - fix for bitmap header DPI
+ //rebuild the image
+ Create(src.GetWidth(),src.GetHeight(),src.GetBpp(),src.GetType());
+ //copy the pixels and the palette, or at least copy the palette only.
+ if (copypixels && pDib && src.pDib) memcpy(pDib,src.pDib,GetSize());
+ else SetPalette(src.GetPalette());
+ int32_t nSize = head.biWidth * head.biHeight;
+ //copy the selection
+ if (copyselection && src.pSelection){
+ if (pSelection) free(pSelection);
+ pSelection = (uint8_t*)malloc(nSize);
+ memcpy(pSelection,src.pSelection,nSize);
+ }
+ //copy the alpha channel
+ if (copyalpha && src.pAlpha){
+ if (pAlpha) free(pAlpha);
+ pAlpha = (uint8_t*)malloc(nSize);
+ memcpy(pAlpha,src.pAlpha,nSize);
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Copies the image attributes from an existing image.
+ * - Works only on an empty image, and the image will be still empty.
+ * - <b> Use it before Create() </b>
+ */
+void CxImage::CopyInfo(const CxImage &src)
+{
+ if (pDib==NULL) memcpy(&info,&src.info,sizeof(CXIMAGEINFO));
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * \sa Copy
+ */
+CxImage& CxImage::operator = (const CxImage& isrc)
+{
+ if (this != &isrc) Copy(isrc);
+ return *this;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Initializes or rebuilds the image.
+ * \param dwWidth: width
+ * \param dwHeight: height
+ * \param wBpp: bit per pixel, can be 1, 4, 8, 24
+ * \param imagetype: (optional) set the image format, see ENUM_CXIMAGE_FORMATS
+ * \return pointer to the internal pDib object; NULL if an error occurs.
+ */
+void* CxImage::Create(uint32_t dwWidth, uint32_t dwHeight, uint32_t wBpp, uint32_t imagetype)
+{
+ // destroy the existing image (if any)
+ if (!Destroy())
+ return NULL;
+
+ // prevent further actions if width or height are not vaild <Balabasnia>
+ if ((dwWidth == 0) || (dwHeight == 0)){
+ strcpy(info.szLastError,"CxImage::Create : width and height must be greater than zero");
+ return NULL;
+ }
+
+ // Make sure bits per pixel is valid
+ if (wBpp <= 1) wBpp = 1;
+ else if (wBpp <= 4) wBpp = 4;
+ else if (wBpp <= 8) wBpp = 8;
+ else wBpp = 24;
+
+ // limit memory requirements
+ if ((((float)dwWidth*(float)dwHeight*(float)wBpp)/8.0f) > (float)CXIMAGE_MAX_MEMORY)
+ {
+ strcpy(info.szLastError,"CXIMAGE_MAX_MEMORY exceeded");
+ return NULL;
+ }
+
+ // set the correct bpp value
+ switch (wBpp){
+ case 1:
+ head.biClrUsed = 2; break;
+ case 4:
+ head.biClrUsed = 16; break;
+ case 8:
+ head.biClrUsed = 256; break;
+ default:
+ head.biClrUsed = 0;
+ }
+
+ //set the common image informations
+ info.dwEffWidth = ((((wBpp * dwWidth) + 31) / 32) * 4);
+ info.dwType = imagetype;
+
+ // initialize BITMAPINFOHEADER
+ head.biSize = sizeof(BITMAPINFOHEADER); //<ralphw>
+ head.biWidth = dwWidth; // fill in width from parameter
+ head.biHeight = dwHeight; // fill in height from parameter
+ head.biPlanes = 1; // must be 1
+ head.biBitCount = (uint16_t)wBpp; // from parameter
+ head.biCompression = BI_RGB;
+ head.biSizeImage = info.dwEffWidth * dwHeight;
+// head.biXPelsPerMeter = 0; See SetXDPI
+// head.biYPelsPerMeter = 0; See SetYDPI
+// head.biClrImportant = 0; See SetClrImportant
+
+ pDib = malloc(GetSize()); // alloc memory block to store our bitmap
+ if (!pDib){
+ strcpy(info.szLastError,"CxImage::Create can't allocate memory");
+ return NULL;
+ }
+
+ //clear the palette
+ RGBQUAD* pal=GetPalette();
+ if (pal) memset(pal,0,GetPaletteSize());
+ //Destroy the existing selection
+#if CXIMAGE_SUPPORT_SELECTION
+ if (pSelection) SelectionDelete();
+#endif //CXIMAGE_SUPPORT_SELECTION
+ //Destroy the existing alpha channel
+#if CXIMAGE_SUPPORT_ALPHA
+ if (pAlpha) AlphaDelete();
+#endif //CXIMAGE_SUPPORT_ALPHA
+
+ // use our bitmap info structure to fill in first part of
+ // our DIB with the BITMAPINFOHEADER
+ BITMAPINFOHEADER* lpbi;
+ lpbi = (BITMAPINFOHEADER*)(pDib);
+ *lpbi = head;
+
+ info.pImage=GetBits();
+
+ return pDib; //return handle to the DIB
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * \return pointer to the image pixels. <b> USE CAREFULLY </b>
+ */
+uint8_t* CxImage::GetBits(uint32_t row)
+{
+ if (pDib){
+ if (row) {
+ if (row<(uint32_t)head.biHeight){
+ return ((uint8_t*)pDib + *(uint32_t*)pDib + GetPaletteSize() + (info.dwEffWidth * row));
+ } else {
+ return NULL;
+ }
+ } else {
+ return ((uint8_t*)pDib + *(uint32_t*)pDib + GetPaletteSize());
+ }
+ }
+ return NULL;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * \return the size in bytes of the internal pDib object
+ */
+int32_t CxImage::GetSize()
+{
+ return head.biSize + head.biSizeImage + GetPaletteSize();
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Checks if the coordinates are inside the image
+ * \return true if x and y are both inside the image
+ */
+bool CxImage::IsInside(int32_t x, int32_t y)
+{
+ return (0<=y && y<head.biHeight && 0<=x && x<head.biWidth);
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Sets the image bits to the specified value
+ * - for indexed images, the output color is set by the palette entries.
+ * - for RGB images, the output color is a shade of gray.
+ */
+void CxImage::Clear(uint8_t bval)
+{
+ if (pDib == 0) return;
+
+ if (GetBpp() == 1){
+ if (bval > 0) bval = 255;
+ }
+ if (GetBpp() == 4){
+ bval = (uint8_t)(17*(0x0F & bval));
+ }
+
+ memset(info.pImage,bval,head.biSizeImage);
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Transfers the image from an existing source image. The source becomes empty.
+ * \return true if everything is ok
+ */
+bool CxImage::Transfer(CxImage &from, bool bTransferFrames /*=true*/)
+{
+ if (!Destroy())
+ return false;
+
+ memcpy(&head,&from.head,sizeof(BITMAPINFOHEADER));
+ memcpy(&info,&from.info,sizeof(CXIMAGEINFO));
+
+ pDib = from.pDib;
+ pSelection = from.pSelection;
+ pAlpha = from.pAlpha;
+ ppLayers = from.ppLayers;
+
+ memset(&from.head,0,sizeof(BITMAPINFOHEADER));
+ memset(&from.info,0,sizeof(CXIMAGEINFO));
+ from.pDib = from.pSelection = from.pAlpha = NULL;
+ from.ppLayers = NULL;
+
+ if (bTransferFrames){
+ DestroyFrames();
+ ppFrames = from.ppFrames;
+ from.ppFrames = NULL;
+ }
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * (this) points to the same pDib owned by (*from), the image remains in (*from)
+ * but (this) has the access to the pixels. <b>Use carefully !!!</b>
+ */
+void CxImage::Ghost(const CxImage *from)
+{
+ if (from){
+ memcpy(&head,&from->head,sizeof(BITMAPINFOHEADER));
+ memcpy(&info,&from->info,sizeof(CXIMAGEINFO));
+ pDib = from->pDib;
+ pSelection = from->pSelection;
+ pAlpha = from->pAlpha;
+ ppLayers = from->ppLayers;
+ ppFrames = from->ppFrames;
+ info.pGhost=(CxImage *)from;
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * turns a 16 or 32 bit bitfield image into a RGB image
+ */
+void CxImage::Bitfield2RGB(uint8_t *src, uint32_t redmask, uint32_t greenmask, uint32_t bluemask, uint8_t bpp)
+{
+ switch (bpp){
+ case 16:
+ {
+ uint32_t ns[3]={0,0,0};
+ // compute the number of shift for each mask
+ for (int32_t i=0;i<16;i++){
+ if ((redmask>>i)&0x01) ns[0]++;
+ if ((greenmask>>i)&0x01) ns[1]++;
+ if ((bluemask>>i)&0x01) ns[2]++;
+ }
+ ns[1]+=ns[0]; ns[2]+=ns[1]; ns[0]=8-ns[0]; ns[1]-=8; ns[2]-=8;
+ // dword aligned width for 16 bit image
+ int32_t effwidth2=(((head.biWidth + 1) / 2) * 4);
+ uint16_t w;
+ int32_t y2,y3,x2,x3;
+ uint8_t *p=info.pImage;
+ // scan the buffer in reverse direction to avoid reallocations
+ for (int32_t y=head.biHeight-1; y>=0; y--){
+ y2=effwidth2*y;
+ y3=info.dwEffWidth*y;
+ for (int32_t x=head.biWidth-1; x>=0; x--){
+ x2 = 2*x+y2;
+ x3 = 3*x+y3;
+ w = (uint16_t)(src[x2]+256*src[1+x2]);
+ p[ x3]=(uint8_t)((w & bluemask)<<ns[0]);
+ p[1+x3]=(uint8_t)((w & greenmask)>>ns[1]);
+ p[2+x3]=(uint8_t)((w & redmask)>>ns[2]);
+ }
+ }
+ break;
+ }
+ case 32:
+ {
+ uint32_t ns[3]={0,0,0};
+ // compute the number of shift for each mask
+ for (int32_t i=8;i<32;i+=8){
+ if (redmask>>i) ns[0]++;
+ if (greenmask>>i) ns[1]++;
+ if (bluemask>>i) ns[2]++;
+ }
+ // dword aligned width for 32 bit image
+ int32_t effwidth4 = head.biWidth * 4;
+ int32_t y4,y3,x4,x3;
+ uint8_t *p=info.pImage;
+ // scan the buffer in reverse direction to avoid reallocations
+ for (int32_t y=head.biHeight-1; y>=0; y--){
+ y4=effwidth4*y;
+ y3=info.dwEffWidth*y;
+ for (int32_t x=head.biWidth-1; x>=0; x--){
+ x4 = 4*x+y4;
+ x3 = 3*x+y3;
+ p[ x3]=src[ns[2]+x4];
+ p[1+x3]=src[ns[1]+x4];
+ p[2+x3]=src[ns[0]+x4];
+ }
+ }
+ }
+
+ }
+ return;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Creates an image from a generic buffer
+ * \param pArray: source memory buffer
+ * \param dwWidth: image width
+ * \param dwHeight: image height
+ * \param dwBitsperpixel: can be 1,4,8,24,32
+ * \param dwBytesperline: line alignment, in bytes, for a single row stored in pArray
+ * \param bFlipImage: tune this parameter if the image is upsidedown
+ * \return true if everything is ok
+ */
+bool CxImage::CreateFromArray(uint8_t* pArray,uint32_t dwWidth,uint32_t dwHeight,uint32_t dwBitsperpixel, uint32_t dwBytesperline, bool bFlipImage)
+{
+ if (pArray==NULL) return false;
+ if (!((dwBitsperpixel==1)||(dwBitsperpixel==4)||(dwBitsperpixel==8)||
+ (dwBitsperpixel==24)||(dwBitsperpixel==32))) return false;
+
+ if (!Create(dwWidth,dwHeight,dwBitsperpixel)) return false;
+
+ if (dwBitsperpixel<24) SetGrayPalette();
+
+#if CXIMAGE_SUPPORT_ALPHA
+ if (dwBitsperpixel==32) AlphaCreate();
+#endif //CXIMAGE_SUPPORT_ALPHA
+
+ uint8_t *dst,*src;
+
+ for (uint32_t y = 0; y<dwHeight; y++) {
+ dst = info.pImage + (bFlipImage?(dwHeight-1-y):y) * info.dwEffWidth;
+ src = pArray + y * dwBytesperline;
+ if (dwBitsperpixel==32){
+ for(uint32_t x=0;x<dwWidth;x++){
+ *dst++=src[0];
+ *dst++=src[1];
+ *dst++=src[2];
+#if CXIMAGE_SUPPORT_ALPHA
+ AlphaSet(x,(bFlipImage?(dwHeight-1-y):y),src[3]);
+#endif //CXIMAGE_SUPPORT_ALPHA
+ src+=4;
+ }
+ } else {
+ memcpy(dst,src,min(info.dwEffWidth,dwBytesperline));
+ }
+ }
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * \sa CreateFromArray
+ */
+bool CxImage::CreateFromMatrix(uint8_t** ppMatrix,uint32_t dwWidth,uint32_t dwHeight,uint32_t dwBitsperpixel, uint32_t dwBytesperline, bool bFlipImage)
+{
+ if (ppMatrix==NULL) return false;
+ if (!((dwBitsperpixel==1)||(dwBitsperpixel==4)||(dwBitsperpixel==8)||
+ (dwBitsperpixel==24)||(dwBitsperpixel==32))) return false;
+
+ if (!Create(dwWidth,dwHeight,dwBitsperpixel)) return false;
+
+ if (dwBitsperpixel<24) SetGrayPalette();
+
+#if CXIMAGE_SUPPORT_ALPHA
+ if (dwBitsperpixel==32) AlphaCreate();
+#endif //CXIMAGE_SUPPORT_ALPHA
+
+ uint8_t *dst,*src;
+
+ for (uint32_t y = 0; y<dwHeight; y++) {
+ dst = info.pImage + (bFlipImage?(dwHeight-1-y):y) * info.dwEffWidth;
+ src = ppMatrix[y];
+ if (src){
+ if (dwBitsperpixel==32){
+ for(uint32_t x=0;x<dwWidth;x++){
+ *dst++=src[0];
+ *dst++=src[1];
+ *dst++=src[2];
+#if CXIMAGE_SUPPORT_ALPHA
+ AlphaSet(x,(bFlipImage?(dwHeight-1-y):y),src[3]);
+#endif //CXIMAGE_SUPPORT_ALPHA
+ src+=4;
+ }
+ } else {
+ memcpy(dst,src,min(info.dwEffWidth,dwBytesperline));
+ }
+ }
+ }
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * \return lightness difference between elem1 and elem2
+ */
+int32_t CxImage::CompareColors(const void *elem1, const void *elem2)
+{
+ RGBQUAD* c1 = (RGBQUAD*)elem1;
+ RGBQUAD* c2 = (RGBQUAD*)elem2;
+
+ int32_t g1 = (int32_t)RGB2GRAY(c1->rgbRed,c1->rgbGreen,c1->rgbBlue);
+ int32_t g2 = (int32_t)RGB2GRAY(c2->rgbRed,c2->rgbGreen,c2->rgbBlue);
+
+ return (g1-g2);
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * simply calls "if (memblock) free(memblock);".
+ * Useful when calling Encode for a memory buffer,
+ * from a DLL compiled with different memory management options.
+ * CxImage::FreeMemory will use the same memory environment used by Encode.
+ * \author [livecn]
+ */
+void CxImage::FreeMemory(void* memblock)
+{
+ if (memblock)
+ free(memblock);
+}
+////////////////////////////////////////////////////////////////////////////////
+//EOF
diff --git a/smelt/sdl/CxImage/ximage.h b/smelt/sdl/CxImage/ximage.h new file mode 100644 index 0000000..4eed84e --- /dev/null +++ b/smelt/sdl/CxImage/ximage.h @@ -0,0 +1,808 @@ +/*
+ * File: ximage.h
+ * Purpose: General Purpose Image Class
+ */
+/*
+ --------------------------------------------------------------------------------
+
+ COPYRIGHT NOTICE, DISCLAIMER, and LICENSE:
+
+ CxImage version 7.0.0 31/Dec/2010
+
+ CxImage : Copyright (C) 2001 - 2010, Davide Pizzolato
+
+ Original CImage and CImageIterator implementation are:
+ Copyright (C) 1995, Alejandro Aguilar Sierra (asierra(at)servidor(dot)unam(dot)mx)
+
+ Covered code is provided under this license on an "as is" basis, without warranty
+ of any kind, either expressed or implied, including, without limitation, warranties
+ that the covered code is free of defects, merchantable, fit for a particular purpose
+ or non-infringing. The entire risk as to the quality and performance of the covered
+ code is with you. Should any covered code prove defective in any respect, you (not
+ the initial developer or any other contributor) assume the cost of any necessary
+ servicing, repair or correction. This disclaimer of warranty constitutes an essential
+ part of this license. No use of any covered code is authorized hereunder except under
+ this disclaimer.
+
+ Permission is hereby granted to use, copy, modify, and distribute this
+ source code, or portions hereof, for any purpose, including commercial applications,
+ freely and without fee, subject to the following restrictions:
+
+ 1. The origin of this software must not be misrepresented; you must not
+ claim that you wrote the original software. If you use this software
+ in a product, an acknowledgment in the product documentation would be
+ appreciated but is not required.
+
+ 2. Altered source versions must be plainly marked as such, and must not be
+ misrepresented as being the original software.
+
+ 3. This notice may not be removed or altered from any source distribution.
+
+ --------------------------------------------------------------------------------
+
+ Other information about CxImage, and the latest version, can be found at the
+ CxImage home page: http://www.xdp.it/cximage/
+
+ --------------------------------------------------------------------------------
+ */
+#if !defined(__CXIMAGE_H)
+#define __CXIMAGE_H
+
+#if _MSC_VER > 1000
+#pragma once
+#endif
+#ifdef _LINUX
+#ifndef _XOPEN_SOURCE
+ #define _XOPEN_SOURCE
+#endif
+ #include <unistd.h>
+ #include <arpa/inet.h>
+#endif
+
+/////////////////////////////////////////////////////////////////////////////
+#include "xfile.h"
+#include "xiofile.h"
+#include "xmemfile.h"
+#include "ximadef.h" //<vho> adjust some #define
+
+/* see "ximacfg.h" for CxImage configuration options */
+
+/////////////////////////////////////////////////////////////////////////////
+// CxImage formats enumerator
+enum ENUM_CXIMAGE_FORMATS{
+CXIMAGE_FORMAT_UNKNOWN = 0,
+#if CXIMAGE_SUPPORT_BMP
+CXIMAGE_FORMAT_BMP = 1,
+#endif
+#if CXIMAGE_SUPPORT_GIF
+CXIMAGE_FORMAT_GIF = 2,
+#endif
+#if CXIMAGE_SUPPORT_JPG
+CXIMAGE_FORMAT_JPG = 3,
+#endif
+#if CXIMAGE_SUPPORT_PNG
+CXIMAGE_FORMAT_PNG = 4,
+#endif
+#if CXIMAGE_SUPPORT_ICO
+CXIMAGE_FORMAT_ICO = 5,
+#endif
+#if CXIMAGE_SUPPORT_TIF
+CXIMAGE_FORMAT_TIF = 6,
+#endif
+#if CXIMAGE_SUPPORT_TGA
+CXIMAGE_FORMAT_TGA = 7,
+#endif
+#if CXIMAGE_SUPPORT_PCX
+CXIMAGE_FORMAT_PCX = 8,
+#endif
+#if CXIMAGE_SUPPORT_WBMP
+CXIMAGE_FORMAT_WBMP = 9,
+#endif
+#if CXIMAGE_SUPPORT_WMF
+CXIMAGE_FORMAT_WMF = 10,
+#endif
+#if CXIMAGE_SUPPORT_JP2
+CXIMAGE_FORMAT_JP2 = 11,
+#endif
+#if CXIMAGE_SUPPORT_JPC
+CXIMAGE_FORMAT_JPC = 12,
+#endif
+#if CXIMAGE_SUPPORT_PGX
+CXIMAGE_FORMAT_PGX = 13,
+#endif
+#if CXIMAGE_SUPPORT_PNM
+CXIMAGE_FORMAT_PNM = 14,
+#endif
+#if CXIMAGE_SUPPORT_RAS
+CXIMAGE_FORMAT_RAS = 15,
+#endif
+#if CXIMAGE_SUPPORT_JBG
+CXIMAGE_FORMAT_JBG = 16,
+#endif
+#if CXIMAGE_SUPPORT_MNG
+CXIMAGE_FORMAT_MNG = 17,
+#endif
+#if CXIMAGE_SUPPORT_SKA
+CXIMAGE_FORMAT_SKA = 18,
+#endif
+#if CXIMAGE_SUPPORT_RAW
+CXIMAGE_FORMAT_RAW = 19,
+#endif
+#if CXIMAGE_SUPPORT_PSD
+CXIMAGE_FORMAT_PSD = 20,
+#endif
+CMAX_IMAGE_FORMATS = CXIMAGE_SUPPORT_BMP + CXIMAGE_SUPPORT_GIF + CXIMAGE_SUPPORT_JPG +
+ CXIMAGE_SUPPORT_PNG + CXIMAGE_SUPPORT_MNG + CXIMAGE_SUPPORT_ICO +
+ CXIMAGE_SUPPORT_TIF + CXIMAGE_SUPPORT_TGA + CXIMAGE_SUPPORT_PCX +
+ CXIMAGE_SUPPORT_WBMP+ CXIMAGE_SUPPORT_WMF +
+ CXIMAGE_SUPPORT_JBG + CXIMAGE_SUPPORT_JP2 + CXIMAGE_SUPPORT_JPC +
+ CXIMAGE_SUPPORT_PGX + CXIMAGE_SUPPORT_PNM + CXIMAGE_SUPPORT_RAS +
+ CXIMAGE_SUPPORT_SKA + CXIMAGE_SUPPORT_RAW + CXIMAGE_SUPPORT_PSD + 1
+};
+
+#if CXIMAGE_SUPPORT_EXIF
+
+#define MAX_COMMENT 255
+#define MAX_SECTIONS 20
+
+typedef struct tag_ExifInfo {
+ char Version [5];
+ char CameraMake [32];
+ char CameraModel [40];
+ char DateTime [20];
+ int32_t Height, Width;
+ int32_t Orientation;
+ int32_t IsColor;
+ int32_t Process;
+ int32_t FlashUsed;
+ float FocalLength;
+ float ExposureTime;
+ float ApertureFNumber;
+ float Distance;
+ float CCDWidth;
+ float ExposureBias;
+ int32_t Whitebalance;
+ int32_t MeteringMode;
+ int32_t ExposureProgram;
+ int32_t ISOequivalent;
+ int32_t CompressionLevel;
+ float FocalplaneXRes;
+ float FocalplaneYRes;
+ float FocalplaneUnits;
+ float Xresolution;
+ float Yresolution;
+ float ResolutionUnit;
+ float Brightness;
+ char Comments[MAX_COMMENT+1];
+
+ uint8_t * ThumbnailPointer; /* Pointer at the thumbnail */
+ unsigned ThumbnailSize; /* Size of thumbnail. */
+
+ bool IsExif;
+} EXIFINFO;
+
+#endif //CXIMAGE_SUPPORT_EXIF
+
+/////////////////////////////////////////////////////////////////////////////
+// CxImage class
+/////////////////////////////////////////////////////////////////////////////
+class DLL_EXP CxImage
+{
+//extensible information collector
+typedef struct tagCxImageInfo {
+ uint32_t dwEffWidth; ///< uint32_t aligned scan line width
+ uint8_t* pImage; ///< THE IMAGE BITS
+ CxImage* pGhost; ///< if this is a ghost, pGhost points to the body
+ CxImage* pParent; ///< if this is a layer, pParent points to the body
+ uint32_t dwType; ///< original image format
+ char szLastError[256]; ///< debugging
+ int32_t nProgress; ///< monitor
+ int32_t nEscape; ///< escape
+ int32_t nBkgndIndex; ///< used for GIF, PNG, MNG
+ RGBQUAD nBkgndColor; ///< used for RGB transparency
+ float fQuality; ///< used for JPEG, JPEG2000 (0.0f ... 100.0f)
+ uint8_t nJpegScale; ///< used for JPEG [ignacio]
+ int32_t nFrame; ///< used for TIF, GIF, MNG : actual frame
+ int32_t nNumFrames; ///< used for TIF, GIF, MNG : total number of frames
+ uint32_t dwFrameDelay; ///< used for GIF, MNG
+ int32_t xDPI; ///< horizontal resolution
+ int32_t yDPI; ///< vertical resolution
+ RECT rSelectionBox; ///< bounding rectangle
+ uint8_t nAlphaMax; ///< max opacity (fade)
+ bool bAlphaPaletteEnabled; ///< true if alpha values in the palette are enabled.
+ bool bEnabled; ///< enables the painting functions
+ int32_t xOffset;
+ int32_t yOffset;
+ uint32_t dwCodecOpt[CMAX_IMAGE_FORMATS]; ///< for GIF, TIF : 0=def.1=unc,2=fax3,3=fax4,4=pack,5=jpg
+ RGBQUAD last_c; ///< for GetNearestIndex optimization
+ uint8_t last_c_index;
+ bool last_c_isvalid;
+ int32_t nNumLayers;
+ uint32_t dwFlags; ///< 0x??00000 = reserved, 0x00??0000 = blend mode, 0x0000???? = layer id - user flags
+ uint8_t dispmeth;
+ bool bGetAllFrames;
+ bool bLittleEndianHost;
+
+#if CXIMAGE_SUPPORT_EXIF
+ EXIFINFO ExifInfo;
+#endif
+
+} CXIMAGEINFO;
+
+public:
+ //public structures
+struct rgb_color { uint8_t r,g,b; };
+
+#if CXIMAGE_SUPPORT_WINDOWS
+// <VATI> text placement data
+// members must be initialized with the InitTextInfo(&this) function.
+typedef struct tagCxTextInfo
+{
+#if defined (_WIN32_WCE)
+ TCHAR text[256]; ///< text for windows CE
+#else
+ TCHAR text[4096]; ///< text (char -> TCHAR for UNICODE [Cesar M])
+#endif
+ LOGFONT lfont; ///< font and codepage data
+ COLORREF fcolor; ///< foreground color
+ int32_t align; ///< DT_CENTER, DT_RIGHT, DT_LEFT aligment for multiline text
+ uint8_t smooth; ///< text smoothing option. Default is false.
+ uint8_t opaque; ///< text has background or hasn't. Default is true.
+ ///< data for background (ignored if .opaque==FALSE)
+ COLORREF bcolor; ///< background color
+ float b_opacity; ///< opacity value for background between 0.0-1.0 Default is 0. (opaque)
+ uint8_t b_outline; ///< outline width for background (zero: no outline)
+ uint8_t b_round; ///< rounding radius for background rectangle. % of the height, between 0-50. Default is 10.
+ ///< (backgr. always has a frame: width = 3 pixel + 10% of height by default.)
+} CXTEXTINFO;
+#endif
+
+public:
+/** \addtogroup Constructors */ //@{
+ CxImage(uint32_t imagetype = 0);
+ CxImage(uint32_t dwWidth, uint32_t dwHeight, uint32_t wBpp, uint32_t imagetype = 0);
+ CxImage(const CxImage &src, bool copypixels = true, bool copyselection = true, bool copyalpha = true);
+#if CXIMAGE_SUPPORT_DECODE
+ CxImage(const TCHAR * filename, uint32_t imagetype); // For UNICODE support: char -> TCHAR
+ CxImage(FILE * stream, uint32_t imagetype);
+ CxImage(CxFile * stream, uint32_t imagetype);
+ CxImage(uint8_t * buffer, uint32_t size, uint32_t imagetype);
+#endif
+ virtual ~CxImage() { DestroyFrames(); Destroy(); };
+ CxImage& operator = (const CxImage&);
+//@}
+
+/** \addtogroup Initialization */ //@{
+ void* Create(uint32_t dwWidth, uint32_t dwHeight, uint32_t wBpp, uint32_t imagetype = 0);
+ bool Destroy();
+ bool DestroyFrames();
+ void Clear(uint8_t bval=0);
+ void Copy(const CxImage &src, bool copypixels = true, bool copyselection = true, bool copyalpha = true);
+ bool Transfer(CxImage &from, bool bTransferFrames = true);
+ bool CreateFromArray(uint8_t* pArray,uint32_t dwWidth,uint32_t dwHeight,uint32_t dwBitsperpixel, uint32_t dwBytesperline, bool bFlipImage);
+ bool CreateFromMatrix(uint8_t** ppMatrix,uint32_t dwWidth,uint32_t dwHeight,uint32_t dwBitsperpixel, uint32_t dwBytesperline, bool bFlipImage);
+ void FreeMemory(void* memblock);
+
+ uint32_t Dump(uint8_t * dst);
+ uint32_t UnDump(const uint8_t * src);
+ uint32_t DumpSize();
+
+//@}
+
+/** \addtogroup Attributes */ //@{
+ int32_t GetSize();
+ uint8_t* GetBits(uint32_t row = 0);
+ uint8_t GetColorType();
+ void* GetDIB() const;
+ uint32_t GetHeight() const;
+ uint32_t GetWidth() const;
+ uint32_t GetEffWidth() const;
+ uint32_t GetNumColors() const;
+ uint16_t GetBpp() const;
+ uint32_t GetType() const;
+ const char* GetLastError();
+ static const TCHAR* GetVersion();
+ static const float GetVersionNumber();
+
+ uint32_t GetFrameDelay() const;
+ void SetFrameDelay(uint32_t d);
+
+ void GetOffset(int32_t *x,int32_t *y);
+ void SetOffset(int32_t x,int32_t y);
+
+ uint8_t GetJpegQuality() const;
+ void SetJpegQuality(uint8_t q);
+ float GetJpegQualityF() const;
+ void SetJpegQualityF(float q);
+
+ uint8_t GetJpegScale() const;
+ void SetJpegScale(uint8_t q);
+
+#if CXIMAGE_SUPPORT_EXIF
+ EXIFINFO *GetExifInfo() {return &info.ExifInfo;};
+ bool GetExifThumbnail(const TCHAR *filename, const TCHAR *outname, int32_t imageType);
+ #if CXIMAGE_SUPPORT_TRANSFORMATION
+ bool RotateExif(int32_t orientation = 0);
+ #endif
+#endif
+
+ int32_t GetXDPI() const;
+ int32_t GetYDPI() const;
+ void SetXDPI(int32_t dpi);
+ void SetYDPI(int32_t dpi);
+
+ uint32_t GetClrImportant() const;
+ void SetClrImportant(uint32_t ncolors = 0);
+
+ int32_t GetProgress() const;
+ int32_t GetEscape() const;
+ void SetProgress(int32_t p);
+ void SetEscape(int32_t i);
+
+ int32_t GetTransIndex() const;
+ RGBQUAD GetTransColor();
+ void SetTransIndex(int32_t idx);
+ void SetTransColor(RGBQUAD rgb);
+ bool IsTransparent() const;
+
+ uint32_t GetCodecOption(uint32_t imagetype = 0);
+ bool SetCodecOption(uint32_t opt, uint32_t imagetype = 0);
+
+ uint32_t GetFlags() const;
+ void SetFlags(uint32_t flags, bool bLockReservedFlags = true);
+
+ uint8_t GetDisposalMethod() const;
+ void SetDisposalMethod(uint8_t dm);
+
+ bool SetType(uint32_t type);
+
+ static uint32_t GetNumTypes();
+ static uint32_t GetTypeIdFromName(const TCHAR* ext);
+ static uint32_t GetTypeIdFromIndex(const uint32_t index);
+ static uint32_t GetTypeIndexFromId(const uint32_t id);
+
+ bool GetRetreiveAllFrames() const;
+ void SetRetreiveAllFrames(bool flag);
+ CxImage * GetFrame(int32_t nFrame) const;
+
+ //void* GetUserData() const {return info.pUserData;}
+ //void SetUserData(void* pUserData) {info.pUserData = pUserData;}
+//@}
+
+/** \addtogroup Palette
+ * These functions have no effects on RGB images and in this case the returned value is always 0.
+ * @{ */
+ bool IsGrayScale();
+ bool IsIndexed() const;
+ bool IsSamePalette(CxImage &img, bool bCheckAlpha = true);
+ uint32_t GetPaletteSize();
+ RGBQUAD* GetPalette() const;
+ RGBQUAD GetPaletteColor(uint8_t idx);
+ bool GetPaletteColor(uint8_t i, uint8_t* r, uint8_t* g, uint8_t* b);
+ uint8_t GetNearestIndex(RGBQUAD c);
+ void BlendPalette(COLORREF cr,int32_t perc);
+ void SetGrayPalette();
+ void SetPalette(uint32_t n, uint8_t *r, uint8_t *g, uint8_t *b);
+ void SetPalette(RGBQUAD* pPal,uint32_t nColors=256);
+ void SetPalette(rgb_color *rgb,uint32_t nColors=256);
+ void SetPaletteColor(uint8_t idx, uint8_t r, uint8_t g, uint8_t b, uint8_t alpha=0);
+ void SetPaletteColor(uint8_t idx, RGBQUAD c);
+ void SetPaletteColor(uint8_t idx, COLORREF cr);
+ void SwapIndex(uint8_t idx1, uint8_t idx2);
+ void SwapRGB2BGR();
+ void SetStdPalette();
+//@}
+
+/** \addtogroup Pixel */ //@{
+ bool IsInside(int32_t x, int32_t y);
+ bool IsTransparent(int32_t x,int32_t y);
+ bool GetTransparentMask(CxImage* iDst = 0);
+ RGBQUAD GetPixelColor(int32_t x,int32_t y, bool bGetAlpha = true);
+ uint8_t GetPixelIndex(int32_t x,int32_t y);
+ uint8_t GetPixelGray(int32_t x, int32_t y);
+ void SetPixelColor(int32_t x,int32_t y,RGBQUAD c, bool bSetAlpha = false);
+ void SetPixelColor(int32_t x,int32_t y,COLORREF cr);
+ void SetPixelIndex(int32_t x,int32_t y,uint8_t i);
+ void DrawLine(int32_t StartX, int32_t EndX, int32_t StartY, int32_t EndY, RGBQUAD color, bool bSetAlpha=false);
+ void DrawLine(int32_t StartX, int32_t EndX, int32_t StartY, int32_t EndY, COLORREF cr);
+ void BlendPixelColor(int32_t x,int32_t y,RGBQUAD c, float blend, bool bSetAlpha = false);
+//@}
+
+protected:
+/** \addtogroup Protected */ //@{
+ uint8_t BlindGetPixelIndex(const int32_t x,const int32_t y);
+ RGBQUAD BlindGetPixelColor(const int32_t x,const int32_t y, bool bGetAlpha = true);
+ void *BlindGetPixelPointer(const int32_t x,const int32_t y);
+ void BlindSetPixelColor(int32_t x,int32_t y,RGBQUAD c, bool bSetAlpha = false);
+ void BlindSetPixelIndex(int32_t x,int32_t y,uint8_t i);
+//@}
+
+public:
+
+#if CXIMAGE_SUPPORT_INTERPOLATION
+/** \addtogroup Interpolation */ //@{
+ //overflow methods:
+ enum OverflowMethod {
+ OM_COLOR=1,
+ OM_BACKGROUND=2,
+ OM_TRANSPARENT=3,
+ OM_WRAP=4,
+ OM_REPEAT=5,
+ OM_MIRROR=6
+ };
+ void OverflowCoordinates(float &x, float &y, OverflowMethod const ofMethod);
+ void OverflowCoordinates(int32_t &x, int32_t &y, OverflowMethod const ofMethod);
+ RGBQUAD GetPixelColorWithOverflow(int32_t x, int32_t y, OverflowMethod const ofMethod=OM_BACKGROUND, RGBQUAD* const rplColor=0);
+ //interpolation methods:
+ enum InterpolationMethod {
+ IM_NEAREST_NEIGHBOUR=1,
+ IM_BILINEAR =2,
+ IM_BSPLINE =3,
+ IM_BICUBIC =4,
+ IM_BICUBIC2 =5,
+ IM_LANCZOS =6,
+ IM_BOX =7,
+ IM_HERMITE =8,
+ IM_HAMMING =9,
+ IM_SINC =10,
+ IM_BLACKMAN =11,
+ IM_BESSEL =12,
+ IM_GAUSSIAN =13,
+ IM_QUADRATIC =14,
+ IM_MITCHELL =15,
+ IM_CATROM =16,
+ IM_HANNING =17,
+ IM_POWER =18
+ };
+ RGBQUAD GetPixelColorInterpolated(float x,float y, InterpolationMethod const inMethod=IM_BILINEAR, OverflowMethod const ofMethod=OM_BACKGROUND, RGBQUAD* const rplColor=0);
+ RGBQUAD GetAreaColorInterpolated(float const xc, float const yc, float const w, float const h, InterpolationMethod const inMethod, OverflowMethod const ofMethod=OM_BACKGROUND, RGBQUAD* const rplColor=0);
+//@}
+
+protected:
+/** \addtogroup Protected */ //@{
+ void AddAveragingCont(RGBQUAD const &color, float const surf, float &rr, float &gg, float &bb, float &aa);
+//@}
+
+/** \addtogroup Kernels */ //@{
+public:
+ static float KernelBSpline(const float x);
+ static float KernelLinear(const float t);
+ static float KernelCubic(const float t);
+ static float KernelGeneralizedCubic(const float t, const float a=-1);
+ static float KernelLanczosSinc(const float t, const float r = 3);
+ static float KernelBox(const float x);
+ static float KernelHermite(const float x);
+ static float KernelHamming(const float x);
+ static float KernelSinc(const float x);
+ static float KernelBlackman(const float x);
+ static float KernelBessel_J1(const float x);
+ static float KernelBessel_P1(const float x);
+ static float KernelBessel_Q1(const float x);
+ static float KernelBessel_Order1(float x);
+ static float KernelBessel(const float x);
+ static float KernelGaussian(const float x);
+ static float KernelQuadratic(const float x);
+ static float KernelMitchell(const float x);
+ static float KernelCatrom(const float x);
+ static float KernelHanning(const float x);
+ static float KernelPower(const float x, const float a = 2);
+//@}
+#endif //CXIMAGE_SUPPORT_INTERPOLATION
+
+/** \addtogroup Painting */ //@{
+#if CXIMAGE_SUPPORT_WINDOWS
+ int32_t Blt(HDC pDC, int32_t x=0, int32_t y=0);
+ HBITMAP Draw2HBITMAP(HDC hdc, int32_t x, int32_t y, int32_t cx, int32_t cy, RECT* pClipRect, bool bSmooth);
+ HBITMAP MakeBitmap(HDC hdc = NULL, bool bTransparency = false);
+ HICON MakeIcon(HDC hdc = NULL, bool bTransparency = false);
+ HANDLE CopyToHandle();
+ bool CreateFromHANDLE(HANDLE hMem); //Windows objects (clipboard)
+ bool CreateFromHBITMAP(HBITMAP hbmp, HPALETTE hpal=0, bool bTransparency = false); //Windows resource
+ bool CreateFromHICON(HICON hico, bool bTransparency = false);
+ int32_t Draw(HDC hdc, int32_t x=0, int32_t y=0, int32_t cx = -1, int32_t cy = -1, RECT* pClipRect = 0, bool bSmooth = false, bool bFlipY = false);
+ int32_t Draw(HDC hdc, const RECT& rect, RECT* pClipRect=NULL, bool bSmooth = false, bool bFlipY = false);
+ int32_t Stretch(HDC hdc, int32_t xoffset, int32_t yoffset, int32_t xsize, int32_t ysize, uint32_t dwRop = SRCCOPY);
+ int32_t Stretch(HDC hdc, const RECT& rect, uint32_t dwRop = SRCCOPY);
+ int32_t Tile(HDC hdc, RECT *rc);
+ int32_t Draw2(HDC hdc, int32_t x=0, int32_t y=0, int32_t cx = -1, int32_t cy = -1);
+ int32_t Draw2(HDC hdc, const RECT& rect);
+ //int32_t DrawString(HDC hdc, int32_t x, int32_t y, const char* text, RGBQUAD color, const char* font, int32_t lSize=0, int32_t lWeight=400, uint8_t bItalic=0, uint8_t bUnderline=0, bool bSetAlpha=false);
+ int32_t DrawString(HDC hdc, int32_t x, int32_t y, const TCHAR* text, RGBQUAD color, const TCHAR* font, int32_t lSize=0, int32_t lWeight=400, uint8_t bItalic=0, uint8_t bUnderline=0, bool bSetAlpha=false);
+ // <VATI> extensions
+ int32_t DrawStringEx(HDC hdc, int32_t x, int32_t y, CXTEXTINFO *pTextType, bool bSetAlpha=false );
+ void InitTextInfo( CXTEXTINFO *txt );
+protected:
+ bool IsHBITMAPAlphaValid( HBITMAP hbmp );
+public:
+#endif //CXIMAGE_SUPPORT_WINDOWS
+//@}
+
+ // file operations
+#if CXIMAGE_SUPPORT_DECODE
+/** \addtogroup Decode */ //@{
+#ifdef WIN32
+ //bool Load(LPCWSTR filename, uint32_t imagetype=0);
+ bool LoadResource(HRSRC hRes, uint32_t imagetype, HMODULE hModule=NULL);
+#endif
+ // For UNICODE support: char -> TCHAR
+ bool Load(const TCHAR* filename, uint32_t imagetype=0);
+ //bool Load(const char * filename, uint32_t imagetype=0);
+ bool Decode(FILE * hFile, uint32_t imagetype);
+ bool Decode(CxFile * hFile, uint32_t imagetype);
+ bool Decode(uint8_t * buffer, uint32_t size, uint32_t imagetype);
+
+ bool CheckFormat(CxFile * hFile, uint32_t imagetype = 0);
+ bool CheckFormat(uint8_t * buffer, uint32_t size, uint32_t imagetype = 0);
+//@}
+#endif //CXIMAGE_SUPPORT_DECODE
+
+#if CXIMAGE_SUPPORT_ENCODE
+protected:
+/** \addtogroup Protected */ //@{
+ bool EncodeSafeCheck(CxFile *hFile);
+//@}
+
+public:
+/** \addtogroup Encode */ //@{
+#ifdef WIN32
+ //bool Save(LPCWSTR filename, uint32_t imagetype=0);
+#endif
+ // For UNICODE support: char -> TCHAR
+ bool Save(const TCHAR* filename, uint32_t imagetype);
+ //bool Save(const char * filename, uint32_t imagetype=0);
+ bool Encode(FILE * hFile, uint32_t imagetype);
+ bool Encode(CxFile * hFile, uint32_t imagetype);
+ bool Encode(CxFile * hFile, CxImage ** pImages, int32_t pagecount, uint32_t imagetype);
+ bool Encode(FILE *hFile, CxImage ** pImages, int32_t pagecount, uint32_t imagetype);
+ bool Encode(uint8_t * &buffer, int32_t &size, uint32_t imagetype);
+
+ bool Encode2RGBA(CxFile *hFile, bool bFlipY = false);
+ bool Encode2RGBA(uint8_t * &buffer, int32_t &size, bool bFlipY = false);
+//@}
+#endif //CXIMAGE_SUPPORT_ENCODE
+
+/** \addtogroup Attributes */ //@{
+ //misc.
+ bool IsValid() const;
+ bool IsEnabled() const;
+ void Enable(bool enable=true);
+
+ // frame operations
+ int32_t GetNumFrames() const;
+ int32_t GetFrame() const;
+ void SetFrame(int32_t nFrame);
+//@}
+
+#if CXIMAGE_SUPPORT_BASICTRANSFORMATIONS
+/** \addtogroup BasicTransformations */ //@{
+ bool GrayScale();
+ bool Flip(bool bFlipSelection = false, bool bFlipAlpha = true);
+ bool Mirror(bool bMirrorSelection = false, bool bMirrorAlpha = true);
+ bool Negative();
+ bool RotateLeft(CxImage* iDst = NULL);
+ bool RotateRight(CxImage* iDst = NULL);
+ bool IncreaseBpp(uint32_t nbit);
+//@}
+#endif //CXIMAGE_SUPPORT_BASICTRANSFORMATIONS
+
+#if CXIMAGE_SUPPORT_TRANSFORMATION
+/** \addtogroup Transformations */ //@{
+ // image operations
+ bool Rotate(float angle, CxImage* iDst = NULL);
+ bool Rotate2(float angle, CxImage *iDst = NULL, InterpolationMethod inMethod=IM_BILINEAR,
+ OverflowMethod ofMethod=OM_BACKGROUND, RGBQUAD *replColor=0,
+ bool const optimizeRightAngles=true, bool const bKeepOriginalSize=false);
+ bool Rotate180(CxImage* iDst = NULL);
+ bool Resample(int32_t newx, int32_t newy, int32_t mode = 1, CxImage* iDst = NULL);
+ bool Resample2(int32_t newx, int32_t newy, InterpolationMethod const inMethod=IM_BICUBIC2,
+ OverflowMethod const ofMethod=OM_REPEAT, CxImage* const iDst = NULL,
+ bool const disableAveraging=false);
+ bool DecreaseBpp(uint32_t nbit, bool errordiffusion, RGBQUAD* ppal = 0, uint32_t clrimportant = 0);
+ bool Dither(int32_t method = 0);
+ bool Crop(int32_t left, int32_t top, int32_t right, int32_t bottom, CxImage* iDst = NULL);
+ bool Crop(const RECT& rect, CxImage* iDst = NULL);
+ bool CropRotatedRectangle( int32_t topx, int32_t topy, int32_t width, int32_t height, float angle, CxImage* iDst = NULL);
+ bool Skew(float xgain, float ygain, int32_t xpivot=0, int32_t ypivot=0, bool bEnableInterpolation = false);
+ bool Expand(int32_t left, int32_t top, int32_t right, int32_t bottom, RGBQUAD canvascolor, CxImage* iDst = 0);
+ bool Expand(int32_t newx, int32_t newy, RGBQUAD canvascolor, CxImage* iDst = 0);
+ bool Thumbnail(int32_t newx, int32_t newy, RGBQUAD canvascolor, CxImage* iDst = 0);
+ bool CircleTransform(int32_t type,int32_t rmax=0,float Koeff=1.0f);
+ bool QIShrink(int32_t newx, int32_t newy, CxImage* const iDst = NULL, bool bChangeBpp = false);
+
+//@}
+#endif //CXIMAGE_SUPPORT_TRANSFORMATION
+
+#if CXIMAGE_SUPPORT_DSP
+/** \addtogroup DSP */ //@{
+ bool Contour();
+ bool HistogramStretch(int32_t method = 0, double threshold = 0);
+ bool HistogramEqualize();
+ bool HistogramNormalize();
+ bool HistogramRoot();
+ bool HistogramLog();
+ int32_t Histogram(int32_t* red, int32_t* green = 0, int32_t* blue = 0, int32_t* gray = 0, int32_t colorspace = 0);
+ bool Jitter(int32_t radius=2);
+ bool Repair(float radius = 0.25f, int32_t niterations = 1, int32_t colorspace = 0);
+ bool Combine(CxImage* r,CxImage* g,CxImage* b,CxImage* a, int32_t colorspace = 0);
+ bool FFT2(CxImage* srcReal, CxImage* srcImag, CxImage* dstReal, CxImage* dstImag, int32_t direction = 1, bool bForceFFT = true, bool bMagnitude = true);
+ bool Noise(int32_t level);
+ bool Median(int32_t Ksize=3);
+ bool Gamma(float gamma);
+ bool GammaRGB(float gammaR, float gammaG, float gammaB);
+ bool ShiftRGB(int32_t r, int32_t g, int32_t b);
+ bool Threshold(uint8_t level);
+ bool Threshold(CxImage* pThresholdMask);
+ bool Threshold2(uint8_t level, bool bDirection, RGBQUAD nBkgndColor, bool bSetAlpha = false);
+ bool Colorize(uint8_t hue, uint8_t sat, float blend = 1.0f);
+ bool Light(int32_t brightness, int32_t contrast = 0);
+ float Mean();
+ bool Filter(int32_t* kernel, int32_t Ksize, int32_t Kfactor, int32_t Koffset);
+ bool Erode(int32_t Ksize=2);
+ bool Dilate(int32_t Ksize=2);
+ bool Edge(int32_t Ksize=2);
+ void HuePalette(float correction=1);
+ enum ImageOpType { OpAdd, OpAnd, OpXor, OpOr, OpMask, OpSrcCopy, OpDstCopy, OpSub, OpSrcBlend, OpScreen, OpAvg, OpBlendAlpha };
+ void Mix(CxImage & imgsrc2, ImageOpType op, int32_t lXOffset = 0, int32_t lYOffset = 0, bool bMixAlpha = false);
+ void MixFrom(CxImage & imagesrc2, int32_t lXOffset, int32_t lYOffset);
+ bool UnsharpMask(float radius = 5.0f, float amount = 0.5f, int32_t threshold = 0);
+ bool Lut(uint8_t* pLut);
+ bool Lut(uint8_t* pLutR, uint8_t* pLutG, uint8_t* pLutB, uint8_t* pLutA = 0);
+ bool GaussianBlur(float radius = 1.0f, CxImage* iDst = 0);
+ bool TextBlur(uint8_t threshold = 100, uint8_t decay = 2, uint8_t max_depth = 5, bool bBlurHorizontal = true, bool bBlurVertical = true, CxImage* iDst = 0);
+ bool SelectiveBlur(float radius = 1.0f, uint8_t threshold = 25, CxImage* iDst = 0);
+ bool Solarize(uint8_t level = 128, bool bLinkedChannels = true);
+ bool FloodFill(const int32_t xStart, const int32_t yStart, const RGBQUAD cFillColor, const uint8_t tolerance = 0,
+ uint8_t nOpacity = 255, const bool bSelectFilledArea = false, const uint8_t nSelectionLevel = 255);
+ bool Saturate(const int32_t saturation, const int32_t colorspace = 1);
+ bool ConvertColorSpace(const int32_t dstColorSpace, const int32_t srcColorSpace);
+ int32_t OptimalThreshold(int32_t method = 0, RECT * pBox = 0, CxImage* pContrastMask = 0);
+ bool AdaptiveThreshold(int32_t method = 0, int32_t nBoxSize = 64, CxImage* pContrastMask = 0, int32_t nBias = 0, float fGlobalLocalBalance = 0.5f);
+ bool RedEyeRemove(float strength = 0.8f);
+ bool Trace(RGBQUAD color_target, RGBQUAD color_trace);
+
+//@}
+
+protected:
+/** \addtogroup Protected */ //@{
+ bool IsPowerof2(int32_t x);
+ bool FFT(int32_t dir,int32_t m,double *x,double *y);
+ bool DFT(int32_t dir,int32_t m,double *x1,double *y1,double *x2,double *y2);
+ bool RepairChannel(CxImage *ch, float radius);
+ // <nipper>
+ int32_t gen_convolve_matrix (float radius, float **cmatrix_p);
+ float* gen_lookup_table (float *cmatrix, int32_t cmatrix_length);
+ void blur_line (float *ctable, float *cmatrix, int32_t cmatrix_length, uint8_t* cur_col, uint8_t* dest_col, int32_t y, int32_t bytes);
+ void blur_text (uint8_t threshold, uint8_t decay, uint8_t max_depth, CxImage* iSrc, CxImage* iDst, uint8_t bytes);
+//@}
+
+public:
+/** \addtogroup ColorSpace */ //@{
+ bool SplitRGB(CxImage* r,CxImage* g,CxImage* b);
+ bool SplitYUV(CxImage* y,CxImage* u,CxImage* v);
+ bool SplitHSL(CxImage* h,CxImage* s,CxImage* l);
+ bool SplitYIQ(CxImage* y,CxImage* i,CxImage* q);
+ bool SplitXYZ(CxImage* x,CxImage* y,CxImage* z);
+ bool SplitCMYK(CxImage* c,CxImage* m,CxImage* y,CxImage* k);
+ static RGBQUAD HSLtoRGB(COLORREF cHSLColor);
+ static RGBQUAD RGBtoHSL(RGBQUAD lRGBColor);
+ static RGBQUAD HSLtoRGB(RGBQUAD lHSLColor);
+ static RGBQUAD YUVtoRGB(RGBQUAD lYUVColor);
+ static RGBQUAD RGBtoYUV(RGBQUAD lRGBColor);
+ static RGBQUAD YIQtoRGB(RGBQUAD lYIQColor);
+ static RGBQUAD RGBtoYIQ(RGBQUAD lRGBColor);
+ static RGBQUAD XYZtoRGB(RGBQUAD lXYZColor);
+ static RGBQUAD RGBtoXYZ(RGBQUAD lRGBColor);
+#endif //CXIMAGE_SUPPORT_DSP
+ static RGBQUAD RGBtoRGBQUAD(COLORREF cr);
+ static COLORREF RGBQUADtoRGB (RGBQUAD c);
+//@}
+
+/** \addtogroup Selection */ //@{
+ bool SelectionIsValid();
+#if CXIMAGE_SUPPORT_SELECTION
+ bool SelectionClear(uint8_t level = 0);
+ bool SelectionCreate();
+ bool SelectionDelete();
+ bool SelectionInvert();
+ bool SelectionMirror();
+ bool SelectionFlip();
+ bool SelectionAddRect(RECT r, uint8_t level = 255);
+ bool SelectionAddEllipse(RECT r, uint8_t level = 255);
+ bool SelectionAddPolygon(POINT *points, int32_t npoints, uint8_t level = 255);
+ bool SelectionAddColor(RGBQUAD c, uint8_t level = 255);
+ bool SelectionAddPixel(int32_t x, int32_t y, uint8_t level = 255);
+ bool SelectionCopy(CxImage &from);
+ bool SelectionIsInside(int32_t x, int32_t y);
+ void SelectionGetBox(RECT& r);
+ bool SelectionToHRGN(HRGN& region);
+ bool SelectionSplit(CxImage *dest);
+ uint8_t SelectionGet(const int32_t x,const int32_t y);
+ bool SelectionSet(CxImage &from);
+ void SelectionRebuildBox();
+ uint8_t* SelectionGetPointer(const int32_t x = 0,const int32_t y = 0);
+//@}
+
+protected:
+/** \addtogroup Protected */ //@{
+ bool BlindSelectionIsInside(int32_t x, int32_t y);
+ uint8_t BlindSelectionGet(const int32_t x,const int32_t y);
+ void SelectionSet(const int32_t x,const int32_t y,const uint8_t level);
+
+public:
+
+#endif //CXIMAGE_SUPPORT_SELECTION
+//@}
+
+#if CXIMAGE_SUPPORT_ALPHA
+/** \addtogroup Alpha */ //@{
+ void AlphaClear();
+ bool AlphaCreate();
+ void AlphaDelete();
+ void AlphaInvert();
+ bool AlphaMirror();
+ bool AlphaFlip();
+ bool AlphaCopy(CxImage &from);
+ bool AlphaSplit(CxImage *dest);
+ void AlphaStrip();
+ void AlphaSet(uint8_t level);
+ bool AlphaSet(CxImage &from);
+ void AlphaSet(const int32_t x,const int32_t y,const uint8_t level);
+ uint8_t AlphaGet(const int32_t x,const int32_t y);
+ uint8_t AlphaGetMax() const;
+ void AlphaSetMax(uint8_t nAlphaMax);
+ bool AlphaIsValid();
+ uint8_t* AlphaGetPointer(const int32_t x = 0,const int32_t y = 0);
+ bool AlphaFromTransparency();
+
+ void AlphaPaletteClear();
+ void AlphaPaletteEnable(bool enable=true);
+ bool AlphaPaletteIsEnabled();
+ bool AlphaPaletteIsValid();
+ bool AlphaPaletteSplit(CxImage *dest);
+//@}
+
+protected:
+/** \addtogroup Protected */ //@{
+ uint8_t BlindAlphaGet(const int32_t x,const int32_t y);
+//@}
+#endif //CXIMAGE_SUPPORT_ALPHA
+
+public:
+#if CXIMAGE_SUPPORT_LAYERS
+/** \addtogroup Layers */ //@{
+ bool LayerCreate(int32_t position = -1);
+ bool LayerDelete(int32_t position = -1);
+ void LayerDeleteAll();
+ CxImage* GetLayer(int32_t position);
+ CxImage* GetParent() const;
+ int32_t GetNumLayers() const;
+ int32_t LayerDrawAll(HDC hdc, int32_t x=0, int32_t y=0, int32_t cx = -1, int32_t cy = -1, RECT* pClipRect = 0, bool bSmooth = false);
+ int32_t LayerDrawAll(HDC hdc, const RECT& rect, RECT* pClipRect=NULL, bool bSmooth = false);
+//@}
+#endif //CXIMAGE_SUPPORT_LAYERS
+
+protected:
+/** \addtogroup Protected */ //@{
+ void Startup(uint32_t imagetype = 0);
+ void CopyInfo(const CxImage &src);
+ void Ghost(const CxImage *src);
+ void RGBtoBGR(uint8_t *buffer, int32_t length);
+ static float HueToRGB(float n1,float n2, float hue);
+ void Bitfield2RGB(uint8_t *src, uint32_t redmask, uint32_t greenmask, uint32_t bluemask, uint8_t bpp);
+ static int32_t CompareColors(const void *elem1, const void *elem2);
+ int16_t m_ntohs(const int16_t word);
+ int32_t m_ntohl(const int32_t dword);
+ void bihtoh(BITMAPINFOHEADER* bih);
+
+ void* pDib; //contains the header, the palette, the pixels
+ BITMAPINFOHEADER head; //standard header
+ CXIMAGEINFO info; //extended information
+ uint8_t* pSelection; //selected region
+ uint8_t* pAlpha; //alpha channel
+ CxImage** ppLayers; //generic layers
+ CxImage** ppFrames;
+//@}
+};
+
+////////////////////////////////////////////////////////////////////////////
+#endif // !defined(__CXIMAGE_H)
diff --git a/smelt/sdl/CxImage/ximagif.cpp b/smelt/sdl/CxImage/ximagif.cpp new file mode 100644 index 0000000..8c94b9e --- /dev/null +++ b/smelt/sdl/CxImage/ximagif.cpp @@ -0,0 +1,1681 @@ +/*
+ * File: ximagif.cpp
+ * Purpose: Platform Independent GIF Image Class Loader and Writer
+ * 07/Aug/2001 Davide Pizzolato - www.xdp.it
+ * CxImage version 7.0.0 31/Dec/2010
+ */
+
+#include "ximagif.h"
+
+#if CXIMAGE_SUPPORT_GIF
+
+#include "ximaiter.h"
+
+#if defined (_WIN32_WCE)
+ #define assert(s)
+#else
+ #include <assert.h>
+#endif
+
+////////////////////////////////////////////////////////////////////////////////
+CxImageGIF::CxImageGIF(): CxImage(CXIMAGE_FORMAT_GIF)
+{
+ buf = new uint8_t [GIFBUFTAM + 1];
+
+ stack = new uint8_t [MAX_CODES + 1];
+ suffix = new uint8_t [MAX_CODES + 1];
+ prefix = new uint16_t [MAX_CODES + 1];
+
+ htab = new int32_t [HSIZE];
+ codetab = new uint16_t [HSIZE];
+
+ byte_buff = new uint8_t [257];
+ accum = new char [256];
+ m_comment = new char [256];
+
+ m_loops=0;
+ info.dispmeth=0;
+ m_comment[0]='\0';
+
+}
+////////////////////////////////////////////////////////////////////////////////
+CxImageGIF::~CxImageGIF()
+{
+ delete [] buf;
+
+ delete [] stack;
+ delete [] suffix;
+ delete [] prefix;
+
+ delete [] htab;
+ delete [] codetab;
+
+ delete [] byte_buff;
+ delete [] accum;
+ delete [] m_comment;
+}
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_SUPPORT_DECODE
+////////////////////////////////////////////////////////////////////////////////
+bool CxImageGIF::Decode(CxFile *fp)
+{
+ /* AD - for transparency */
+ struct_dscgif dscgif;
+ struct_image image;
+ struct_TabCol TabCol;
+
+ if (fp == NULL) return false;
+
+ fp->Read(&dscgif,/*sizeof(dscgif)*/13,1);
+ //if (strncmp(dscgif.header,"GIF8",3)!=0) {
+ if (strncmp(dscgif.header,"GIF8",4)!=0) return FALSE;
+
+ // Avoid Byte order problem with Mac <AMSN>
+ dscgif.scrheight = m_ntohs(dscgif.scrheight);
+ dscgif.scrwidth = m_ntohs(dscgif.scrwidth);
+
+ if (info.nEscape == -1) {
+ // Return output dimensions only
+ head.biWidth = dscgif.scrwidth;
+ head.biHeight = dscgif.scrheight;
+ info.dwType = CXIMAGE_FORMAT_GIF;
+ return true;
+ }
+
+ /* AD - for interlace */
+ TabCol.sogct = (int16_t)(1 << ((dscgif.pflds & 0x07)+1));
+ TabCol.colres = (int16_t)(((dscgif.pflds & 0x70) >> 4) + 1);
+
+ // assume that the image is a truecolor-gif if
+ // 1) no global color map found
+ // 2) (image.w, image.h) of the 1st image != (dscgif.scrwidth, dscgif.scrheight)
+ int32_t bTrueColor=0;
+ CxImage* imaRGB=NULL;
+
+ // Global colour map?
+ if (dscgif.pflds & 0x80)
+ fp->Read(TabCol.paleta,sizeof(struct rgb_color)*TabCol.sogct,1);
+ else
+ bTrueColor++; //first chance for a truecolor gif
+
+ int32_t first_transparent_index = 0;
+
+ int32_t iImage = 0;
+ info.nNumFrames=get_num_frames(fp,&TabCol,&dscgif);
+
+ if ((info.nFrame<0)||(info.nFrame>=info.nNumFrames)) return false;
+
+ //it cannot be a true color GIF with only one frame
+ if (info.nNumFrames == 1)
+ bTrueColor=0;
+
+ char ch;
+ bool bPreviousWasNull = true;
+ int32_t prevdispmeth = 0;
+ CxImage *previousFrame = NULL;
+
+ for (BOOL bContinue = TRUE; bContinue; )
+ {
+ if (fp->Read(&ch, sizeof(ch), 1) != 1) {break;}
+
+ if (info.nEscape > 0) return false; // <vho> - cancel decoding
+ if (bPreviousWasNull || ch==0)
+ {
+ switch (ch)
+ {
+ case '!': // extension
+ {
+ bContinue = DecodeExtension(fp);
+ break;
+ }
+ case ',': // image
+ {
+ assert(sizeof(image) == 9);
+ fp->Read(&image,sizeof(image),1);
+ //avoid byte order problems with Solaris <candan> <AMSN>
+ image.l = m_ntohs(image.l);
+ image.t = m_ntohs(image.t);
+ image.w = m_ntohs(image.w);
+ image.h = m_ntohs(image.h);
+
+ if (((image.l + image.w) > dscgif.scrwidth)||((image.t + image.h) > dscgif.scrheight))
+ break;
+
+ // check if it could be a truecolor gif
+ if ((iImage==0) && (image.w != dscgif.scrwidth) && (image.h != dscgif.scrheight))
+ bTrueColor++;
+
+ rgb_color locpal[256]; //Local Palette
+ rgb_color* pcurpal = TabCol.paleta; //Current Palette
+ int16_t palcount = TabCol.sogct; //Current Palette color count
+
+ // Local colour map?
+ if (image.pf & 0x80) {
+ palcount = (int16_t)(1 << ((image.pf & 0x07) +1));
+ assert(3 == sizeof(struct rgb_color));
+ fp->Read(locpal,sizeof(struct rgb_color)*palcount,1);
+ pcurpal = locpal;
+ }
+
+ int32_t bpp; //<DP> select the correct bit per pixel value
+ if (palcount <= 2) bpp = 1;
+ else if (palcount <= 16) bpp = 4;
+ else bpp = 8;
+
+ CxImageGIF backimage;
+ backimage.CopyInfo(*this);
+ if (iImage==0){
+ //first frame: build image background
+ backimage.Create(dscgif.scrwidth, dscgif.scrheight, bpp, CXIMAGE_FORMAT_GIF);
+ first_transparent_index = info.nBkgndIndex;
+ backimage.Clear((uint8_t)gifgce.transpcolindex);
+ previousFrame = new CxImage(backimage);
+ previousFrame->SetRetreiveAllFrames(false);
+ } else {
+ //generic frame: handle disposal method from previous one
+ /*Values : 0 - No disposal specified. The decoder is
+ not required to take any action.
+ 1 - Do not dispose. The graphic is to be left
+ in place.
+ 2 - Restore to background color. The area used by the
+ graphic must be restored to the background color.
+ 3 - Restore to previous. The decoder is required to
+ restore the area overwritten by the graphic with
+ what was there prior to rendering the graphic.
+ */
+ /* backimage.Copy(*this);
+ if (prevdispmeth==2){
+ backimage.Clear((uint8_t)first_transparent_index);
+ }*/
+ if (prevdispmeth==2){
+ backimage.Copy(*this,false,false,false);
+ backimage.Clear((uint8_t)first_transparent_index);
+ } else if (prevdispmeth==3) {
+ backimage.Copy(*this,false,false,false);
+ backimage.Create(previousFrame->GetWidth(),
+ previousFrame->GetHeight(),
+ previousFrame->GetBpp(),CXIMAGE_FORMAT_GIF);
+ memcpy(backimage.GetDIB(),previousFrame->GetDIB(),
+ backimage.GetSize());
+ //backimage.AlphaSet(*previousFrame);
+ } else {
+ backimage.Copy(*this);
+ }
+ }
+
+ //active frame
+ Create(image.w, image.h, bpp, CXIMAGE_FORMAT_GIF);
+
+ if ((image.pf & 0x80) || (dscgif.pflds & 0x80)) {
+ uint8_t r[256], g[256], b[256];
+ int32_t i;//, has_white = 0;
+
+ for (i=0; i < palcount; i++) {
+ r[i] = pcurpal[i].r;
+ g[i] = pcurpal[i].g;
+ b[i] = pcurpal[i].b;
+ //if (RGB(r[i],g[i],b[i]) == 0xFFFFFF) has_white = 1;
+ }
+
+ // Force transparency colour white...
+ //if (0) if (info.nBkgndIndex >= 0)
+ // r[info.nBkgndIndex] = g[info.nBkgndIndex] = b[info.nBkgndIndex] = 255;
+ // Fill in with white // AD
+ if (info.nBkgndIndex >= 0) {
+ while (i < 256) {
+ //has_white = 1;
+ r[i] = g[i] = b[i] = 255;
+ i++;
+ }
+ }
+
+ // Force last colour to white... // AD
+ //if ((info.nBkgndIndex >= 0) && !has_white) {
+ // r[255] = g[255] = b[255] = 255;
+ //}
+
+ SetPalette((info.nBkgndIndex >= 0 ? 256 : palcount), r, g, b);
+ }
+
+ CImageIterator* iter = new CImageIterator(this);
+ iter->Upset();
+ int32_t badcode=0;
+ ibf = GIFBUFTAM+1;
+
+ interlaced = image.pf & 0x40;
+ iheight = image.h;
+ istep = 8;
+ iypos = 0;
+ ipass = 0;
+
+ int32_t pos_start = fp->Tell();
+ //if (interlaced) log << "Interlaced" << endl;
+ decoder(fp, iter, image.w, badcode);
+ delete iter;
+
+ if (info.nEscape) return false; // <vho> - cancel decoding
+
+ if (bTrueColor<2 ){ //standard GIF: mix frame with background
+ backimage.IncreaseBpp(bpp);
+ backimage.GifMix(*this,image);
+ backimage.SetTransIndex(first_transparent_index);
+ backimage.SetPalette(GetPalette());
+ Transfer(backimage,false);
+ } else { //it's a truecolor gif!
+ //force full image decoding
+ info.nFrame=info.nNumFrames-1;
+ //build the RGB image
+ if (imaRGB==NULL) imaRGB = new CxImage(dscgif.scrwidth,dscgif.scrheight,24,CXIMAGE_FORMAT_GIF);
+ //copy the partial image into the full RGB image
+ for(int32_t y=0;y<image.h;y++){
+ for (int32_t x=0;x<image.w;x++){
+ imaRGB->SetPixelColor(x+image.l,dscgif.scrheight-1-image.t-y,GetPixelColor(x,image.h-y-1));
+ }
+ }
+ }
+
+ prevdispmeth = (gifgce.flags >> 2) & 0x7;
+
+ //restore the correct position in the file for the next image
+ if (badcode){
+ seek_next_image(fp,pos_start);
+ } else {
+ fp->Seek(-(ibfmax - ibf - 1), SEEK_CUR);
+ }
+
+ if (info.bGetAllFrames && imaRGB == NULL) {
+ if (iImage == 0) {
+ DestroyFrames();
+ ppFrames = new CxImage*[info.nNumFrames];
+ for(int32_t frameIdx = 0; frameIdx < info.nNumFrames; frameIdx++){
+ ppFrames[frameIdx] = NULL;
+ }
+ }
+ ppFrames[iImage] = new CxImage(*this);
+ ppFrames[iImage]->SetRetreiveAllFrames(false);
+ }
+ if (prevdispmeth <= 1) {
+ delete previousFrame;
+ previousFrame = new CxImage(*this);
+ previousFrame->SetRetreiveAllFrames(false);
+ }
+
+ if ((info.nFrame==iImage) && (info.bGetAllFrames==false)) bContinue=false; else iImage++;
+
+ break;
+ }
+ case ';': //terminator
+ bContinue=false;
+ break;
+ default:
+ bPreviousWasNull = (ch==0);
+ break;
+ }
+ }
+ }
+
+ if (bTrueColor>=2 && imaRGB){
+ if (gifgce.flags & 0x1){
+ imaRGB->SetTransColor(GetPaletteColor((uint8_t)info.nBkgndIndex));
+ imaRGB->SetTransIndex(0);
+ }
+ Transfer(*imaRGB);
+ }
+ delete imaRGB;
+
+ delete previousFrame;
+
+ return true;
+
+}
+////////////////////////////////////////////////////////////////////////////////
+bool CxImageGIF::DecodeExtension(CxFile *fp)
+{
+ bool bContinue;
+ uint8_t count;
+ uint8_t fc;
+
+ bContinue = (1 == fp->Read(&fc, sizeof(fc), 1));
+ if (bContinue) {
+ /* AD - for transparency */
+ if (fc == 0xF9) {
+ bContinue = (1 == fp->Read(&count, sizeof(count), 1));
+ if (bContinue) {
+ assert(sizeof(gifgce) == 4);
+ bContinue = (count == fp->Read(&gifgce, 1, sizeof(gifgce)));
+ gifgce.delaytime = m_ntohs(gifgce.delaytime); // Avoid Byte order problem with Mac <AMSN>
+ if (bContinue) {
+ info.nBkgndIndex = (gifgce.flags & 0x1) ? gifgce.transpcolindex : -1;
+ info.dwFrameDelay = gifgce.delaytime;
+ SetDisposalMethod((gifgce.flags >> 2) & 0x7);
+ } } }
+
+ if (fc == 0xFE) { //<DP> Comment block
+ bContinue = (1 == fp->Read(&count, sizeof(count), 1));
+ if (bContinue) {
+ bContinue = (1 == fp->Read(m_comment, count, 1));
+ m_comment[count]='\0';
+ } }
+
+ if (fc == 0xFF) { //<DP> Application Extension block
+ bContinue = (1 == fp->Read(&count, sizeof(count), 1));
+ if (bContinue) {
+ bContinue = (count==11);
+ if (bContinue){
+ char AppID[11];
+ bContinue = (1 == fp->Read(AppID, count, 1));
+ if (bContinue) {
+ bContinue = (1 == fp->Read(&count, sizeof(count), 1));
+ if (bContinue) {
+ uint8_t* dati = (uint8_t*)malloc(count);
+ bContinue = (dati!=NULL);
+ if (bContinue){
+ bContinue = (1 == fp->Read(dati, count, 1));
+ if (count>2){
+ m_loops = dati[1]+256*dati[2];
+ }
+ }
+ free(dati);
+ } } } } }
+
+ while (bContinue && fp->Read(&count, sizeof(count), 1) && count) {
+ //log << "Skipping " << count << " bytes" << endl;
+ fp->Seek(count, SEEK_CUR);
+ }
+ }
+ return bContinue;
+
+}
+////////////////////////////////////////////////////////////////////////////////
+#endif //CXIMAGE_SUPPORT_DECODE
+////////////////////////////////////////////////////////////////////////////////
+
+// - This external (machine specific) function is expected to return
+// either the next uint8_t from the GIF file, or a negative error number.
+int32_t CxImageGIF::get_byte(CxFile* file)
+{
+ if (ibf>=GIFBUFTAM){
+ // FW 06/02/98 >>>
+ ibfmax = (int32_t)file->Read( buf , 1 , GIFBUFTAM) ;
+ if( ibfmax < GIFBUFTAM ) buf[ ibfmax ] = 255 ;
+ // FW 06/02/98 <<<
+ ibf = 0;
+ }
+ if (ibf>=ibfmax) return -1; //<DP> avoid overflows
+ return buf[ibf++];
+}
+////////////////////////////////////////////////////////////////////////////////
+/* - This function takes a full line of pixels (one uint8_t per pixel) and
+ * displays them (or does whatever your program wants with them...). It
+ * should return zero, or negative if an error or some other event occurs
+ * which would require aborting the decode process... Note that the length
+ * passed will almost always be equal to the line length passed to the
+ * decoder function, with the sole exception occurring when an ending code
+ * occurs in an odd place in the GIF file... In any case, linelen will be
+ * equal to the number of pixels passed...
+*/
+int32_t CxImageGIF::out_line(CImageIterator* iter, uint8_t *pixels, int32_t linelen)
+{
+ if (iter == NULL || pixels == NULL)
+ return -1;
+
+ //<DP> for 1 & 4 bpp images, the pixels are compressed
+ if (head.biBitCount < 8){
+ for(int32_t x=0;x<head.biWidth;x++){
+ uint8_t pos;
+ uint8_t* iDst= pixels + (x*head.biBitCount >> 3);
+ if (head.biBitCount==4){
+ pos = (uint8_t)(4*(1-x%2));
+ *iDst &= ~(0x0F<<pos);
+ *iDst |= ((pixels[x] & 0x0F)<<pos);
+ } else if (head.biBitCount==1){
+ pos = (uint8_t)(7-x%8);
+ *iDst &= ~(0x01<<pos);
+ *iDst |= ((pixels[x] & 0x01)<<pos);
+ }
+ }
+ }
+
+ /* AD - for interlace */
+ if (interlaced) {
+ iter->SetY(iheight-iypos-1);
+ iter->SetRow(pixels, linelen);
+
+ if ((iypos += istep) >= iheight) {
+ do {
+ if (ipass++ > 0) istep /= 2;
+ iypos = istep / 2;
+ }
+ while (iypos > iheight);
+ }
+ return 0;
+ } else {
+ if (iter->ItOK()) {
+ iter->SetRow(pixels, linelen);
+ (void)iter->PrevRow();
+ return 0;
+ } else {
+ // puts("chafeo");
+ return -1;
+ }
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_SUPPORT_ENCODE
+////////////////////////////////////////////////////////////////////////////////
+// SaveFile - writes GIF87a gif file
+// Randy Spann 6/15/97
+// R.Spann@ConnRiver.net
+bool CxImageGIF::Encode(CxFile * fp)
+{
+ if (EncodeSafeCheck(fp)) return false;
+
+ if(head.biBitCount > 8) {
+ //strcpy(info.szLastError,"GIF Images must be 8 bit or less");
+ //return FALSE;
+ return EncodeRGB(fp);
+ }
+
+ if ( GetNumFrames()>1 && ppFrames ) {
+ return Encode(fp, ppFrames, GetNumFrames() );
+ }
+
+ EncodeHeader(fp);
+
+ EncodeExtension(fp);
+
+ EncodeComment(fp);
+
+ EncodeBody(fp);
+
+ fp->PutC(';'); // Write the GIF file terminator
+
+ return true; // done!
+}
+////////////////////////////////////////////////////////////////////////////////
+bool CxImageGIF::Encode(CxFile * fp, CxImage ** pImages, int32_t pagecount, bool bLocalColorMap, bool bLocalDispMeth)
+{
+ cx_try {
+ if (fp==NULL) cx_throw("invalid file pointer");
+ if (pImages==NULL || pagecount<=0 || pImages[0]==NULL) cx_throw("multipage GIF, no images!");
+
+ int32_t i;
+ for (i=0; i<pagecount; i++){
+ if (pImages[i]==NULL)
+ cx_throw("Bad image pointer");
+ if (!(pImages[i]->IsValid()))
+ cx_throw("Empty image");
+ if (pImages[i]->GetNumColors()==0)
+ cx_throw("CxImageGIF::Encode cannot create animated GIFs with a true color frame. Use DecreaseBpp before");
+ }
+
+ CxImageGIF ghost;
+
+ //write the first image
+ ghost.Ghost(pImages[0]);
+ ghost.EncodeHeader(fp);
+
+ if (m_loops!=1){
+ ghost.SetLoops(max(0,m_loops-1));
+ ghost.EncodeLoopExtension(fp);
+ }
+
+ if (bLocalDispMeth) {
+ ghost.EncodeExtension(fp);
+ } else {
+ uint8_t dm = ghost.GetDisposalMethod();
+ ghost.SetDisposalMethod(GetDisposalMethod());
+ ghost.EncodeExtension(fp);
+ ghost.SetDisposalMethod(dm);
+ }
+
+ EncodeComment(fp);
+
+ ghost.EncodeBody(fp);
+
+ for (i=1; i<pagecount; i++){
+ ghost.Ghost(pImages[i]);
+
+ if (bLocalDispMeth) {
+ ghost.EncodeExtension(fp);
+ } else {
+ uint8_t dm = ghost.GetDisposalMethod();
+ ghost.SetDisposalMethod(GetDisposalMethod());
+ ghost.EncodeExtension(fp);
+ ghost.SetDisposalMethod(dm);
+ }
+
+ ghost.EncodeBody(fp,bLocalColorMap);
+ }
+
+ fp->PutC(';'); // Write the GIF file terminator
+
+ } cx_catch {
+ if (strcmp(message,"")) strncpy(info.szLastError,message,255);
+ return false;
+ }
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImageGIF::EncodeHeader(CxFile *fp)
+{
+ fp->Write("GIF89a",1,6); //GIF Header
+
+ Putword(head.biWidth,fp); //Logical screen descriptor
+ Putword(head.biHeight,fp);
+
+ uint8_t Flags;
+ if (head.biClrUsed==0){
+ Flags=0x11;
+ } else {
+ Flags = 0x80;
+ Flags |=(head.biBitCount - 1) << 5;
+ Flags |=(head.biBitCount - 1);
+ }
+
+ fp->PutC(Flags); //GIF "packed fields"
+ fp->PutC(0); //GIF "BackGround"
+ fp->PutC(0); //GIF "pixel aspect ratio"
+
+ if (head.biClrUsed!=0){
+ RGBQUAD* pPal = GetPalette();
+ for(uint32_t i=0; i<head.biClrUsed; ++i)
+ {
+ fp->PutC(pPal[i].rgbRed);
+ fp->PutC(pPal[i].rgbGreen);
+ fp->PutC(pPal[i].rgbBlue);
+ }
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImageGIF::EncodeExtension(CxFile *fp)
+{
+ // TRK BEGIN : transparency
+ fp->PutC('!');
+ fp->PutC(TRANSPARENCY_CODE);
+
+ gifgce.flags = 0;
+ gifgce.flags |= ((info.nBkgndIndex != -1) ? 1 : 0);
+ gifgce.flags |= ((GetDisposalMethod() & 0x7) << 2);
+ gifgce.delaytime = (uint16_t)info.dwFrameDelay;
+ gifgce.transpcolindex = (uint8_t)info.nBkgndIndex;
+
+ //Invert byte order in case we use a byte order arch, then set it back <AMSN>
+ gifgce.delaytime = m_ntohs(gifgce.delaytime);
+ fp->PutC(sizeof(gifgce));
+ fp->Write(&gifgce, sizeof(gifgce), 1);
+ gifgce.delaytime = m_ntohs(gifgce.delaytime);
+
+ fp->PutC(0);
+ // TRK END
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImageGIF::EncodeLoopExtension(CxFile *fp)
+{
+ fp->PutC('!'); //byte 1 : 33 (hex 0x21) GIF Extension code
+ fp->PutC(255); //byte 2 : 255 (hex 0xFF) Application Extension Label
+ fp->PutC(11); //byte 3 : 11 (hex (0x0B) Length of Application Block (eleven bytes of data to follow)
+ fp->Write("NETSCAPE2.0",11,1);
+ fp->PutC(3); //byte 15 : 3 (hex 0x03) Length of Data Sub-Block (three bytes of data to follow)
+ fp->PutC(1); //byte 16 : 1 (hex 0x01)
+ Putword(m_loops,fp); //bytes 17 to 18 : 0 to 65535, an unsigned integer in lo-hi byte format.
+ //This indicate the number of iterations the loop should be executed.
+ fp->PutC(0); //bytes 19 : 0 (hex 0x00) a Data Sub-block Terminator.
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImageGIF::EncodeBody(CxFile *fp, bool bLocalColorMap)
+{
+ curx = 0;
+ cury = head.biHeight - 1; //because we read the image bottom to top
+ CountDown = (int32_t)head.biWidth * (int32_t)head.biHeight;
+
+ fp->PutC(',');
+
+ Putword(info.xOffset,fp);
+ Putword(info.yOffset,fp);
+ Putword(head.biWidth,fp);
+ Putword(head.biHeight,fp);
+
+ uint8_t Flags=0x00; //non-interlaced (0x40 = interlaced) (0x80 = LocalColorMap)
+ if (bLocalColorMap) { Flags|=0x80; Flags|=head.biBitCount-1; }
+ fp->PutC(Flags);
+
+ if (bLocalColorMap){
+ Flags|=0x87;
+ RGBQUAD* pPal = GetPalette();
+ for(uint32_t i=0; i<head.biClrUsed; ++i)
+ {
+ fp->PutC(pPal[i].rgbRed);
+ fp->PutC(pPal[i].rgbGreen);
+ fp->PutC(pPal[i].rgbBlue);
+ }
+ }
+
+ int32_t InitCodeSize = head.biBitCount <=1 ? 2 : head.biBitCount;
+ // Write out the initial code size
+ fp->PutC((uint8_t)InitCodeSize);
+
+ // Go and actually compress the data
+ switch (GetCodecOption(CXIMAGE_FORMAT_GIF))
+ {
+ case 1: //uncompressed
+ compressNONE(InitCodeSize+1, fp);
+ break;
+ case 2: //RLE
+ compressRLE(InitCodeSize+1, fp);
+ break;
+ default: //LZW
+ compressLZW(InitCodeSize+1, fp);
+ }
+
+ // Write out a Zero-length packet (to end the series)
+ fp->PutC(0);
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImageGIF::EncodeComment(CxFile *fp)
+{
+ uint32_t n = (uint32_t) strlen(m_comment);
+ if (n>255) n=255;
+ if (n) {
+ fp->PutC('!'); //extension code:
+ fp->PutC(254); //comment extension
+ fp->PutC((uint8_t)n); //size of comment
+ fp->Write(m_comment,n,1);
+ fp->PutC(0); //block terminator
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+bool CxImageGIF::EncodeRGB(CxFile *fp)
+{
+ EncodeHeader(fp);
+
+// EncodeLoopExtension(fp);
+
+ EncodeComment(fp);
+
+ uint32_t w,h;
+ w=h=0;
+ const int32_t cellw = 17;
+ const int32_t cellh = 15;
+ CxImageGIF tmp;
+ for (int32_t y=0;y<head.biHeight;y+=cellh){
+ for (int32_t x=0;x<head.biWidth;x+=cellw){
+ if ((head.biWidth -x)<cellw) w=head.biWidth -x; else w=cellw;
+ if ((head.biHeight-y)<cellh) h=head.biHeight-y; else h=cellh;
+
+ if (w!=tmp.GetWidth() || h!=tmp.GetHeight()) tmp.Create(w,h,8);
+
+ if (IsTransparent()){
+ tmp.SetTransIndex(0);
+ tmp.SetPaletteColor(0,GetTransColor());
+ }
+
+ uint8_t i;
+ for (uint32_t j=0;j<h;j++){
+ for (uint32_t k=0;k<w;k++){
+ i=(uint8_t)(1+k+cellw*j);
+ tmp.SetPaletteColor(i,GetPixelColor(x+k,head.biHeight-y-h+j));
+ tmp.SetPixelIndex(k,j,tmp.GetNearestIndex(tmp.GetPaletteColor(i)));
+ }
+ }
+
+ tmp.SetOffset(x,y);
+ tmp.EncodeExtension(fp);
+ tmp.EncodeBody(fp,true);
+ }
+ }
+
+ fp->PutC(';'); // Write the GIF file terminator
+
+ return true; // done!
+}
+////////////////////////////////////////////////////////////////////////////////
+#endif // CXIMAGE_SUPPORT_ENCODE
+////////////////////////////////////////////////////////////////////////////////
+// Return the next pixel from the image
+// <DP> fix for 1 & 4 bpp images
+int32_t CxImageGIF::GifNextPixel( )
+{
+ if( CountDown == 0 ) return EOF;
+ --CountDown;
+ int32_t r = GetPixelIndex(curx,cury);
+ // Bump the current X position
+ ++curx;
+ if( curx == head.biWidth ){
+ curx = 0;
+ cury--; //bottom to top
+ }
+ return r;
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImageGIF::Putword(int32_t w, CxFile *fp )
+{
+ fp->PutC((uint8_t)(w & 0xff));
+ fp->PutC((uint8_t)((w >> 8) & 0xff));
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImageGIF::compressNONE( int32_t init_bits, CxFile* outfile)
+{
+ register int32_t c;
+ register int32_t ent;
+
+ // g_init_bits - initial number of bits
+ // g_outfile - pointer to output file
+ g_init_bits = init_bits;
+ g_outfile = outfile;
+
+ // Set up the necessary values
+ cur_accum = cur_bits = clear_flg = 0;
+ maxcode = (int16_t)MAXCODE(n_bits = g_init_bits);
+ code_int maxmaxcode = (code_int)1 << MAXBITSCODES;
+
+ ClearCode = (1 << (init_bits - 1));
+ EOFCode = ClearCode + 1;
+ free_ent = (int16_t)(ClearCode + 2);
+
+ a_count=0;
+ ent = GifNextPixel( );
+
+ output( (code_int)ClearCode );
+
+ while ( ent != EOF ) {
+ c = GifNextPixel();
+
+ output ( (code_int) ent );
+ ent = c;
+ if ( free_ent < maxmaxcode ) {
+ free_ent++;
+ } else {
+ free_ent=(int16_t)(ClearCode+2);
+ clear_flg=1;
+ output((code_int)ClearCode);
+ }
+ }
+ // Put out the final code.
+ output( (code_int) EOFCode );
+}
+////////////////////////////////////////////////////////////////////////////////
+
+/***************************************************************************
+ *
+ * GIFCOMPR.C - LZW GIF Image compression routines
+ *
+ ***************************************************************************/
+
+void CxImageGIF::compressLZW( int32_t init_bits, CxFile* outfile)
+{
+ register int32_t fcode;
+ register int32_t c;
+ register int32_t ent;
+ register int32_t hshift;
+ register int32_t disp;
+ register int32_t i;
+
+ // g_init_bits - initial number of bits
+ // g_outfile - pointer to output file
+ g_init_bits = init_bits;
+ g_outfile = outfile;
+
+ // Set up the necessary values
+ cur_accum = cur_bits = clear_flg = 0;
+ maxcode = (int16_t)MAXCODE(n_bits = g_init_bits);
+ code_int maxmaxcode = (code_int)1 << MAXBITSCODES;
+
+ ClearCode = (1 << (init_bits - 1));
+ EOFCode = ClearCode + 1;
+ free_ent = (int16_t)(ClearCode + 2);
+
+ a_count=0;
+ ent = GifNextPixel( );
+
+ hshift = 0;
+ for ( fcode = (int32_t) HSIZE; fcode < 65536L; fcode *= 2L ) ++hshift;
+ hshift = 8 - hshift; /* set hash code range bound */
+ cl_hash((int32_t)HSIZE); /* clear hash table */
+ output( (code_int)ClearCode );
+
+ while ( (c = GifNextPixel( )) != EOF ) {
+
+ fcode = (int32_t) (((int32_t) c << MAXBITSCODES) + ent);
+ i = (((code_int)c << hshift) ^ ent); /* xor hashing */
+
+ if ( HashTabOf (i) == fcode ) {
+ ent = CodeTabOf (i);
+ continue;
+ } else if ( (int32_t)HashTabOf (i) < 0 ) /* empty slot */
+ goto nomatch;
+ disp = HSIZE - i; /* secondary hash (after G. Knott) */
+ if ( i == 0 ) disp = 1;
+probe:
+ if ( (i -= disp) < 0 ) i += HSIZE;
+ if ( HashTabOf (i) == fcode ) { ent = CodeTabOf (i); continue; }
+ if ( (int32_t)HashTabOf (i) > 0 ) goto probe;
+nomatch:
+ output ( (code_int) ent );
+ ent = c;
+ if ( free_ent < maxmaxcode ) {
+ CodeTabOf (i) = free_ent++; /* code -> hashtable */
+ HashTabOf (i) = fcode;
+ } else {
+ cl_hash((int32_t)HSIZE);
+ free_ent=(int16_t)(ClearCode+2);
+ clear_flg=1;
+ output((code_int)ClearCode);
+ }
+ }
+ // Put out the final code.
+ output( (code_int)ent );
+ output( (code_int) EOFCode );
+}
+////////////////////////////////////////////////////////////////////////////////
+
+static const uint32_t code_mask[] = { 0x0000, 0x0001, 0x0003, 0x0007, 0x000F,
+ 0x001F, 0x003F, 0x007F, 0x00FF,
+ 0x01FF, 0x03FF, 0x07FF, 0x0FFF,
+ 0x1FFF, 0x3FFF, 0x7FFF, 0xFFFF };
+
+////////////////////////////////////////////////////////////////////////////////
+void CxImageGIF::output( code_int code)
+{
+ cur_accum &= code_mask[ cur_bits ];
+
+ if( cur_bits > 0 )
+ cur_accum |= ((int32_t)code << cur_bits);
+ else
+ cur_accum = code;
+
+ cur_bits += n_bits;
+
+ while( cur_bits >= 8 ) {
+ char_out( (uint32_t)(cur_accum & 0xff) );
+ cur_accum >>= 8;
+ cur_bits -= 8;
+ }
+
+ /*
+ * If the next entry is going to be too big for the code size,
+ * then increase it, if possible.
+ */
+
+ if ( free_ent > maxcode || clear_flg ) {
+ if( clear_flg ) {
+ maxcode = (int16_t)MAXCODE(n_bits = g_init_bits);
+ clear_flg = 0;
+ } else {
+ ++n_bits;
+ if ( n_bits == MAXBITSCODES )
+ maxcode = (code_int)1 << MAXBITSCODES; /* should NEVER generate this code */
+ else
+ maxcode = (int16_t)MAXCODE(n_bits);
+ }
+ }
+
+ if( code == EOFCode ) {
+ // At EOF, write the rest of the buffer.
+ while( cur_bits > 0 ) {
+ char_out( (uint32_t)(cur_accum & 0xff) );
+ cur_accum >>= 8;
+ cur_bits -= 8;
+ }
+
+ flush_char();
+ g_outfile->Flush();
+
+ if(g_outfile->Error()) strcpy(info.szLastError,"Write Error in GIF file");
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+
+void CxImageGIF::cl_hash(int32_t hsize)
+
+{
+ register int32_t *htab_p = htab+hsize;
+
+ register int32_t i;
+ register int32_t m1 = -1L;
+
+ i = hsize - 16;
+
+ do {
+ *(htab_p-16)=m1;
+ *(htab_p-15)=m1;
+ *(htab_p-14)=m1;
+ *(htab_p-13)=m1;
+ *(htab_p-12)=m1;
+ *(htab_p-11)=m1;
+ *(htab_p-10)=m1;
+ *(htab_p-9)=m1;
+ *(htab_p-8)=m1;
+ *(htab_p-7)=m1;
+ *(htab_p-6)=m1;
+ *(htab_p-5)=m1;
+ *(htab_p-4)=m1;
+ *(htab_p-3)=m1;
+ *(htab_p-2)=m1;
+ *(htab_p-1)=m1;
+
+ htab_p-=16;
+ } while ((i-=16) >=0);
+
+ for (i+=16;i>0;--i)
+ *--htab_p=m1;
+}
+
+/*******************************************************************************
+* GIF specific
+*******************************************************************************/
+
+void CxImageGIF::char_out(int32_t c)
+{
+ accum[a_count++]=(char)c;
+ if (a_count >=254)
+ flush_char();
+}
+
+void CxImageGIF::flush_char()
+{
+ if (a_count > 0) {
+ g_outfile->PutC((uint8_t)a_count);
+ g_outfile->Write(accum,1,a_count);
+ a_count=0;
+ }
+}
+
+/*******************************************************************************
+* GIF decoder
+*******************************************************************************/
+/* DECODE.C - An LZW decoder for GIF
+ * Copyright (C) 1987, by Steven A. Bennett
+ * Copyright (C) 1994, C++ version by Alejandro Aguilar Sierra
+*
+ * Permission is given by the author to freely redistribute and include
+ * this code in any program as int32_t as this credit is given where due.
+ *
+ * In accordance with the above, I want to credit Steve Wilhite who wrote
+ * the code which this is heavily inspired by...
+ *
+ * GIF and 'Graphics Interchange Format' are trademarks (tm) of
+ * Compuserve, Incorporated, an H&R Block Company.
+ *
+ * Release Notes: This file contains a decoder routine for GIF images
+ * which is similar, structurally, to the original routine by Steve Wilhite.
+ * It is, however, somewhat noticably faster in most cases.
+ *
+ */
+
+////////////////////////////////////////////////////////////////////////////////
+
+int16_t CxImageGIF::init_exp(int16_t size)
+{
+ curr_size = (int16_t)(size + 1);
+ top_slot = (int16_t)(1 << curr_size);
+ clear = (int16_t)(1 << size);
+ ending = (int16_t)(clear + 1);
+ slot = newcodes = (int16_t)(ending + 1);
+ navail_bytes = nbits_left = 0;
+
+ memset(stack,0,MAX_CODES + 1);
+ memset(prefix,0,MAX_CODES + 1);
+ memset(suffix,0,MAX_CODES + 1);
+ return(0);
+}
+////////////////////////////////////////////////////////////////////////////////
+
+/* get_next_code()
+ * - gets the next code from the GIF file. Returns the code, or else
+ * a negative number in case of file errors...
+ */
+int16_t CxImageGIF::get_next_code(CxFile* file)
+{
+ int16_t i, x;
+ uint32_t ret;
+
+ if (nbits_left == 0) {
+ if (navail_bytes <= 0) {
+ /* Out of bytes in current block, so read next block */
+ pbytes = byte_buff;
+ if ((navail_bytes = (int16_t)get_byte(file)) < 0)
+ return(navail_bytes);
+ else if (navail_bytes) {
+ for (i = 0; i < navail_bytes; ++i) {
+ if ((x = (int16_t)get_byte(file)) < 0) return(x);
+ byte_buff[i] = (uint8_t)x;
+ }
+ }
+ }
+ b1 = *pbytes++;
+ nbits_left = 8;
+ --navail_bytes;
+ }
+
+ if (navail_bytes<0) return ending; // prevent deadlocks (thanks to Mike Melnikov)
+
+ ret = b1 >> (8 - nbits_left);
+ while (curr_size > nbits_left){
+ if (navail_bytes <= 0){
+ /* Out of bytes in current block, so read next block*/
+ pbytes = byte_buff;
+ if ((navail_bytes = (int16_t)get_byte(file)) < 0)
+ return(navail_bytes);
+ else if (navail_bytes){
+ for (i = 0; i < navail_bytes; ++i){
+ if ((x = (int16_t)get_byte(file)) < 0) return(x);
+ byte_buff[i] = (uint8_t)x;
+ }
+ }
+ }
+ b1 = *pbytes++;
+ ret |= b1 << nbits_left;
+ nbits_left += 8;
+ --navail_bytes;
+ }
+ nbits_left = (int16_t)(nbits_left-curr_size);
+ ret &= code_mask[curr_size];
+ return((int16_t)(ret));
+}
+////////////////////////////////////////////////////////////////////////////////
+
+/* int16_t decoder(linewidth)
+ * int16_t linewidth; * Pixels per line of image *
+ *
+ * - This function decodes an LZW image, according to the method used
+ * in the GIF spec. Every *linewidth* "characters" (ie. pixels) decoded
+ * will generate a call to out_line(), which is a user specific function
+ * to display a line of pixels. The function gets it's codes from
+ * get_next_code() which is responsible for reading blocks of data and
+ * seperating them into the proper size codes. Finally, get_byte() is
+ * the global routine to read the next uint8_t from the GIF file.
+ *
+ * It is generally a good idea to have linewidth correspond to the actual
+ * width of a line (as specified in the Image header) to make your own
+ * code a bit simpler, but it isn't absolutely necessary.
+ *
+ * Returns: 0 if successful, else negative. (See ERRS.H)
+ *
+ */
+/* bad_code_count is incremented each time an out of range code is read.
+ * When this value is non-zero after a decode, your GIF file is probably
+ * corrupt in some way...
+ */
+int16_t CxImageGIF::decoder(CxFile* file, CImageIterator* iter, int16_t linewidth, int32_t &bad_code_count)
+{
+ register uint8_t *sp, *bufptr;
+ uint8_t *buf;
+ register int16_t code, fc, oc, bufcnt;
+ int16_t c, size, ret;
+
+ if (linewidth<=0)
+ return BAD_LINE_WIDTH;
+
+ /* Initialize for decoding a new image... */
+ bad_code_count = 0;
+ if ((size = (int16_t)get_byte(file)) < 0) return(size);
+ if (size < 2 || 9 < size) return(BAD_CODE_SIZE);
+ // out_line = outline;
+ init_exp(size);
+ //printf("L %d %x\n",linewidth,size);
+
+ /* Initialize in case they forgot to put in a clear code.
+ * (This shouldn't happen, but we'll try and decode it anyway...)
+ */
+ oc = fc = 0;
+
+ /* Allocate space for the decode buffer */
+ if ((buf = new uint8_t[linewidth + 1]) == NULL) return(OUT_OF_MEMORY);
+
+ /* Set up the stack pointer and decode buffer pointer */
+ sp = stack;
+ bufptr = buf;
+ bufcnt = linewidth;
+
+ /* This is the main loop. For each code we get we pass through the
+ * linked list of prefix codes, pushing the corresponding "character" for
+ * each code onto the stack. When the list reaches a single "character"
+ * we push that on the stack too, and then start unstacking each
+ * character for output in the correct order. Special handling is
+ * included for the clear code, and the whole thing ends when we get
+ * an ending code.
+ */
+ while ((c = get_next_code(file)) != ending) {
+ /* If we had a file error, return without completing the decode*/
+ if (c < 0){
+ delete [] buf;
+ return(0);
+ }
+ /* If the code is a clear code, reinitialize all necessary items.*/
+ if (c == clear){
+ curr_size = (int16_t)(size + 1);
+ slot = newcodes;
+ top_slot = (int16_t)(1 << curr_size);
+
+ /* Continue reading codes until we get a non-clear code
+ * (Another unlikely, but possible case...)
+ */
+ while ((c = get_next_code(file)) == clear);
+
+ /* If we get an ending code immediately after a clear code
+ * (Yet another unlikely case), then break out of the loop.
+ */
+ if (c == ending) break;
+
+ /* Finally, if the code is beyond the range of already set codes,
+ * (This one had better NOT happen... I have no idea what will
+ * result from this, but I doubt it will look good...) then set it
+ * to color zero.
+ */
+ if (c >= slot) c = 0;
+ oc = fc = c;
+
+ /* And let us not forget to put the char into the buffer... And
+ * if, on the off chance, we were exactly one pixel from the end
+ * of the line, we have to send the buffer to the out_line()
+ * routine...
+ */
+ *bufptr++ = (uint8_t)c;
+ if (--bufcnt == 0) {
+ if (iter) {
+ if ((ret = (int16_t)out_line(iter, buf, linewidth)) < 0) {
+ delete [] buf;
+ return(ret);
+ }
+ }
+ bufptr = buf;
+ bufcnt = linewidth;
+ }
+ } else {
+ /* In this case, it's not a clear code or an ending code, so
+ * it must be a code code... So we can now decode the code into
+ * a stack of character codes. (Clear as mud, right?)
+ */
+ code = c;
+
+ /* Here we go again with one of those off chances... If, on the
+ * off chance, the code we got is beyond the range of those already
+ * set up (Another thing which had better NOT happen...) we trick
+ * the decoder into thinking it actually got the last code read.
+ * (Hmmn... I'm not sure why this works... But it does...)
+ */
+ if (code >= slot && sp<(stack+MAX_CODES-1)) {
+ if (code > slot)
+ ++bad_code_count;
+ code = oc;
+ *sp++ = (uint8_t)fc;
+ }
+
+ /* Here we scan back along the linked list of prefixes, pushing
+ * helpless characters (ie. suffixes) onto the stack as we do so.
+ */
+ while (code >= newcodes && sp<(stack+MAX_CODES-1)) {
+ *sp++ = suffix[code];
+ code = prefix[code];
+ }
+
+ /* Push the last character on the stack, and set up the new
+ * prefix and suffix, and if the required slot number is greater
+ * than that allowed by the current bit size, increase the bit
+ * size. (NOTE - If we are all full, we *don't* save the new
+ * suffix and prefix... I'm not certain if this is correct...
+ * it might be more proper to overwrite the last code...
+ */
+ *sp++ = (uint8_t)code;
+ if (slot < top_slot){
+ suffix[slot] = (uint8_t)(fc = (uint8_t)code);
+ prefix[slot++] = oc;
+ oc = c;
+ }
+ if (slot >= top_slot){
+ if (curr_size < 12) {
+ top_slot <<= 1;
+ ++curr_size;
+ }
+ }
+
+ /* Now that we've pushed the decoded string (in reverse order)
+ * onto the stack, lets pop it off and put it into our decode
+ * buffer... And when the decode buffer is full, write another
+ * line...
+ */
+ while (sp > stack) {
+ *bufptr++ = *(--sp);
+ if (--bufcnt == 0) {
+ if (iter) {
+ if ((ret = (int16_t)out_line(iter, buf, linewidth)) < 0) {
+ delete [] buf;
+ return(ret);
+ }
+ }
+ bufptr = buf;
+ bufcnt = linewidth;
+ }
+ }
+ }
+ }
+ ret = 0;
+ if (bufcnt != linewidth && iter)
+ ret = (int16_t)out_line(iter, buf, (linewidth - bufcnt));
+ delete [] buf;
+ return(ret);
+}
+////////////////////////////////////////////////////////////////////////////////
+int32_t CxImageGIF::get_num_frames(CxFile *fp,struct_TabCol* TabColSrc,struct_dscgif* dscgif)
+{
+ struct_image image;
+
+ int32_t pos=fp->Tell();
+ int32_t nframes=0;
+
+ struct_TabCol TempTabCol;
+ memcpy(&TempTabCol,TabColSrc,sizeof(struct_TabCol));
+
+ char ch;
+ bool bPreviousWasNull = true;
+
+ for (BOOL bContinue = TRUE; bContinue; )
+ {
+ if (fp->Read(&ch, sizeof(ch), 1) != 1) {break;}
+
+ if (bPreviousWasNull || ch==0)
+ {
+ switch (ch)
+ {
+ case '!': // extension
+ {
+ DecodeExtension(fp);
+ break;
+ }
+ case ',': // image
+ {
+
+ assert(sizeof(image) == 9);
+ //log << "Image header" << endl;
+ fp->Read(&image,sizeof(image),1);
+
+ //avoid byte order problems with Solaris <candan> <AMSN>
+ image.l = m_ntohs(image.l);
+ image.t = m_ntohs(image.t);
+ image.w = m_ntohs(image.w);
+ image.h = m_ntohs(image.h);
+
+ // in case of images with empty screen descriptor, give a last chance
+ if (dscgif->scrwidth==0 && dscgif->scrheight==0){
+ dscgif->scrwidth = image.w;
+ dscgif->scrheight = image.h;
+ }
+
+ if (((image.l + image.w) > dscgif->scrwidth)||((image.t + image.h) > dscgif->scrheight))
+ break;
+
+ nframes++;
+
+ // Local colour map?
+ if (image.pf & 0x80) {
+ TempTabCol.sogct = (int16_t)(1 << ((image.pf & 0x07) +1));
+ assert(3 == sizeof(struct rgb_color));
+ fp->Read(TempTabCol.paleta,sizeof(struct rgb_color)*TempTabCol.sogct,1);
+ //log << "Local colour map" << endl;
+ }
+
+ int32_t badcode=0;
+ ibf = GIFBUFTAM+1;
+
+ interlaced = image.pf & 0x40;
+ iheight = image.h;
+ istep = 8;
+ iypos = 0;
+ ipass = 0;
+
+ int32_t pos_start = fp->Tell();
+
+ //if (interlaced) log << "Interlaced" << endl;
+ decoder(fp, 0, image.w, badcode);
+
+ if (badcode){
+ seek_next_image(fp,pos_start);
+ } else {
+ fp->Seek(-(ibfmax - ibf - 1), SEEK_CUR);
+ }
+
+ break;
+ }
+ case ';': //terminator
+ bContinue=false;
+ break;
+ default:
+ bPreviousWasNull = (ch==0);
+ break;
+ }
+ }
+ }
+
+ fp->Seek(pos,SEEK_SET);
+ return nframes;
+}
+////////////////////////////////////////////////////////////////////////////////
+int32_t CxImageGIF::seek_next_image(CxFile* fp, int32_t position)
+{
+ fp->Seek(position, SEEK_SET);
+ char ch1,ch2;
+ ch1=ch2=0;
+ while(fp->Read(&ch2,sizeof(char),1)>0){
+ if (ch1 == 0 && ch2 == ','){
+ fp->Seek(-1,SEEK_CUR);
+ return fp->Tell();
+ } else {
+ ch1 = ch2;
+ }
+ }
+ return -1;
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImageGIF::SetLoops(int32_t loops)
+{ m_loops=loops; }
+////////////////////////////////////////////////////////////////////////////////
+int32_t CxImageGIF::GetLoops()
+{ return m_loops; }
+////////////////////////////////////////////////////////////////////////////////
+void CxImageGIF::SetComment(const char* sz_comment_in)
+{ if (sz_comment_in) strncpy(m_comment,sz_comment_in,255); }
+////////////////////////////////////////////////////////////////////////////////
+void CxImageGIF::GetComment(char* sz_comment_out)
+{ if (sz_comment_out) strncpy(sz_comment_out,m_comment,255); }
+////////////////////////////////////////////////////////////////////////////////
+void CxImageGIF::GifMix(CxImage & imgsrc2, struct_image & imgdesc)
+{
+ int32_t ymin = max(0,(int32_t)(GetHeight()-imgdesc.t - imgdesc.h));
+ int32_t ymax = GetHeight()-imgdesc.t;
+ int32_t xmin = imgdesc.l;
+ int32_t xmax = min(GetWidth(), (uint32_t)(imgdesc.l + imgdesc.w));
+
+ int32_t ibg2= imgsrc2.GetTransIndex();
+ uint8_t i2;
+
+ for(int32_t y = ymin; y < ymax; y++){
+ for(int32_t x = xmin; x < xmax; x++){
+ i2 = imgsrc2.GetPixelIndex(x-xmin,y-ymin);
+ if(i2!=ibg2) SetPixelIndex(x,y,i2);
+ }
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+/*-----------------------------------------------------------------------
+ *
+ * miGIF Compression - mouse and ivo's GIF-compatible compression
+ *
+ * -run length encoding compression routines-
+ *
+ * Copyright (C) 1998 Hutchison Avenue Software Corporation
+ * http://www.hasc.com
+ * info@hasc.com
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose and without fee is hereby granted, provided
+ * that the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation. This software is provided "AS IS." The Hutchison Avenue
+ * Software Corporation disclaims all warranties, either express or implied,
+ * including but not limited to implied warranties of merchantability and
+ * fitness for a particular purpose, with respect to this code and accompanying
+ * documentation.
+ *
+ * The miGIF compression routines do not, strictly speaking, generate files
+ * conforming to the GIF spec, since the image data is not LZW-compressed
+ * (this is the point: in order to avoid transgression of the Unisys patent
+ * on the LZW algorithm.) However, miGIF generates data streams that any
+ * reasonably sane LZW decompresser will decompress to what we want.
+ *
+ * miGIF compression uses run length encoding. It compresses horizontal runs
+ * of pixels of the same color. This type of compression gives good results
+ * on images with many runs, for example images with lines, text and solid
+ * shapes on a solid-colored background. It gives little or no compression
+ * on images with few runs, for example digital or scanned photos.
+ *
+ * der Mouse
+ * mouse@rodents.montreal.qc.ca
+ * 7D C8 61 52 5D E7 2D 39 4E F1 31 3E E8 B3 27 4B
+ *
+ * ivo@hasc.com
+ *
+ * The Graphics Interchange Format(c) is the Copyright property of
+ * CompuServe Incorporated. GIF(sm) is a Service Mark property of
+ * CompuServe Incorporated.
+ *
+ */
+////////////////////////////////////////////////////////////////////////////////
+void CxImageGIF::rle_clear(struct_RLE* rle)
+{
+ rle->out_bits = rle->out_bits_init;
+ rle->out_bump = rle->out_bump_init;
+ rle->out_clear = rle->out_clear_init;
+ rle->out_count = 0;
+ rle->rl_table_max = 0;
+ rle->just_cleared = 1;
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImageGIF::rle_flush(struct_RLE* rle)
+{
+ if (rle->rl_count == 1){
+ rle_output_plain(rle->rl_pixel,rle);
+ rle->rl_count = 0;
+ return;
+ }
+ if (rle->just_cleared){
+ rle_flush_fromclear(rle->rl_count,rle);
+ } else if ((rle->rl_table_max < 2) || (rle->rl_table_pixel != rle->rl_pixel)) {
+ rle_flush_clearorrep(rle->rl_count,rle);
+ } else {
+ rle_flush_withtable(rle->rl_count,rle);
+ }
+ rle->rl_count = 0;
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImageGIF::rle_output_plain(int32_t c,struct_RLE* rle)
+{
+ rle->just_cleared = 0;
+ rle_output(c,rle);
+ rle->out_count++;
+ if (rle->out_count >= rle->out_bump){
+ rle->out_bits ++;
+ rle->out_bump += 1 << (rle->out_bits - 1);
+ }
+ if (rle->out_count >= rle->out_clear){
+ rle_output(rle->code_clear,rle);
+ rle_clear(rle);
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImageGIF::rle_flush_fromclear(int32_t count,struct_RLE* rle)
+{
+ int32_t n;
+
+ rle->out_clear = rle->max_ocodes;
+ rle->rl_table_pixel = rle->rl_pixel;
+ n = 1;
+ while (count > 0){
+ if (n == 1){
+ rle->rl_table_max = 1;
+ rle_output_plain(rle->rl_pixel,rle);
+ count --;
+ } else if (count >= n){
+ rle->rl_table_max = n;
+ rle_output_plain(rle->rl_basecode+n-2,rle);
+ count -= n;
+ } else if (count == 1){
+ rle->rl_table_max ++;
+ rle_output_plain(rle->rl_pixel,rle);
+ count = 0;
+ } else {
+ rle->rl_table_max ++;
+ rle_output_plain(rle->rl_basecode+count-2,rle);
+ count = 0;
+ }
+ if (rle->out_count == 0) n = 1; else n ++;
+ }
+ rle_reset_out_clear(rle);
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImageGIF::rle_reset_out_clear(struct_RLE* rle)
+{
+ rle->out_clear = rle->out_clear_init;
+ if (rle->out_count >= rle->out_clear){
+ rle_output(rle->code_clear,rle);
+ rle_clear(rle);
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImageGIF::rle_flush_withtable(int32_t count, struct_RLE* rle)
+{
+ int32_t repmax;
+ int32_t repleft;
+ int32_t leftover;
+
+ repmax = count / rle->rl_table_max;
+ leftover = count % rle->rl_table_max;
+ repleft = (leftover ? 1 : 0);
+ if (rle->out_count+repmax+repleft > rle->max_ocodes){
+ repmax = rle->max_ocodes - rle->out_count;
+ leftover = count - (repmax * rle->rl_table_max);
+ repleft = 1 + rle_compute_triangle_count(leftover,rle->max_ocodes);
+ }
+ if (1+rle_compute_triangle_count(count,rle->max_ocodes) < (uint32_t)(repmax+repleft)){
+ rle_output(rle->code_clear,rle);
+ rle_clear(rle);
+ rle_flush_fromclear(count,rle);
+ return;
+ }
+ rle->out_clear = rle->max_ocodes;
+ for (;repmax>0;repmax--) rle_output_plain(rle->rl_basecode+rle->rl_table_max-2,rle);
+ if (leftover){
+ if (rle->just_cleared){
+ rle_flush_fromclear(leftover,rle);
+ } else if (leftover == 1){
+ rle_output_plain(rle->rl_pixel,rle);
+ } else {
+ rle_output_plain(rle->rl_basecode+leftover-2,rle);
+ }
+ }
+ rle_reset_out_clear(rle);
+}
+////////////////////////////////////////////////////////////////////////////////
+uint32_t CxImageGIF::rle_compute_triangle_count(uint32_t count, uint32_t nrepcodes)
+{
+ uint32_t perrep;
+ uint32_t cost;
+
+ cost = 0;
+ perrep = (nrepcodes * (nrepcodes+1)) / 2;
+ while (count >= perrep){
+ cost += nrepcodes;
+ count -= perrep;
+ }
+ if (count > 0){
+ uint32_t n;
+ n = rle_isqrt(count);
+ while ((n*(n+1)) >= 2*count) n --;
+ while ((n*(n+1)) < 2*count) n ++;
+ cost += n;
+ }
+ return(cost);
+}
+////////////////////////////////////////////////////////////////////////////////
+uint32_t CxImageGIF::rle_isqrt(uint32_t x)
+{
+ uint32_t r;
+ uint32_t v;
+
+ if (x < 2) return(x);
+ for (v=x,r=1;v;v>>=2,r<<=1) ;
+ for( ;; )
+ {
+ v = ((x / r) + r) / 2;
+ if ((v == r) || (v == r+1)) return(r);
+ r = v;
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImageGIF::rle_flush_clearorrep(int32_t count, struct_RLE* rle)
+{
+ int32_t withclr;
+ withclr = 1 + rle_compute_triangle_count(count,rle->max_ocodes);
+ if (withclr < count) {
+ rle_output(rle->code_clear,rle);
+ rle_clear(rle);
+ rle_flush_fromclear(count,rle);
+ } else {
+ for (;count>0;count--) rle_output_plain(rle->rl_pixel,rle);
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImageGIF::rle_write_block(struct_RLE* rle)
+{
+ g_outfile->PutC((uint8_t)rle->oblen);
+ g_outfile->Write(rle->oblock,1,rle->oblen);
+ rle->oblen = 0;
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImageGIF::rle_block_out(uint8_t c, struct_RLE* rle)
+{
+ rle->oblock[rle->oblen++] = c;
+ if (rle->oblen >= 255) rle_write_block(rle);
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImageGIF::rle_block_flush(struct_RLE* rle)
+{
+ if (rle->oblen > 0) rle_write_block(rle);
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImageGIF::rle_output(int32_t val, struct_RLE* rle)
+{
+ rle->obuf |= val << rle->obits;
+ rle->obits += rle->out_bits;
+ while (rle->obits >= 8){
+ rle_block_out((uint8_t)(rle->obuf&0xff),rle);
+ rle->obuf >>= 8;
+ rle->obits -= 8;
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImageGIF::rle_output_flush(struct_RLE* rle)
+{
+ if (rle->obits > 0) rle_block_out((uint8_t)(rle->obuf),rle);
+ rle_block_flush(rle);
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImageGIF::compressRLE( int32_t init_bits, CxFile* outfile)
+{
+ g_init_bits = init_bits;
+ g_outfile = outfile;
+
+ struct_RLE rle;
+ rle.code_clear = 1 << (init_bits - 1);
+ rle.code_eof = rle.code_clear + 1;
+ rle.rl_basecode = rle.code_eof + 1;
+ rle.out_bump_init = (1 << (init_bits - 1)) - 1;
+ rle.out_clear_init = (init_bits <= 3) ? 9 : (rle.out_bump_init-1);
+ rle.out_bits_init = init_bits;
+ rle.max_ocodes = (1 << MAXBITSCODES) - ((1 << (rle.out_bits_init - 1)) + 3);
+ rle.rl_count = 0;
+ rle_clear(&rle);
+ rle.obuf = 0;
+ rle.obits = 0;
+ rle.oblen = 0;
+
+ rle_output(rle.code_clear,&rle);
+
+ int32_t c;
+ for( ;; )
+ {
+ c = GifNextPixel();
+ if ((rle.rl_count > 0) && (c != rle.rl_pixel)) rle_flush(&rle);
+ if (c == EOF) break;
+ if (rle.rl_pixel == c){
+ rle.rl_count++;
+ } else {
+ rle.rl_pixel = c;
+ rle.rl_count = 1;
+ }
+ }
+ rle_output(rle.code_eof,&rle);
+ rle_output_flush(&rle);
+}
+////////////////////////////////////////////////////////////////////////////////
+#endif // CXIMAGE_SUPPORT_GIF
diff --git a/smelt/sdl/CxImage/ximagif.h b/smelt/sdl/CxImage/ximagif.h new file mode 100644 index 0000000..4eec35e --- /dev/null +++ b/smelt/sdl/CxImage/ximagif.h @@ -0,0 +1,244 @@ +/*
+ * File: ximagif.h
+ * Purpose: GIF Image Class Loader and Writer
+ */
+/* ==========================================================
+ * CxImageGIF (c) 07/Aug/2001 Davide Pizzolato - www.xdp.it
+ * For conditions of distribution and use, see copyright notice in ximage.h
+ *
+ * Special thanks to Troels Knakkergaard for new features, enhancements and bugfixes
+ *
+ * original CImageGIF and CImageIterator implementation are:
+ * Copyright: (c) 1995, Alejandro Aguilar Sierra <asierra(at)servidor(dot)unam(dot)mx>
+ *
+ * 6/15/97 Randy Spann: Added GIF87a writing support
+ * R.Spann@ConnRiver.net
+ *
+ * DECODE.C - An LZW decoder for GIF
+ * Copyright (C) 1987, by Steven A. Bennett
+ * Copyright (C) 1994, C++ version by Alejandro Aguilar Sierra
+ *
+ * In accordance with the above, I want to credit Steve Wilhite who wrote
+ * the code which this is heavily inspired by...
+ *
+ * GIF and 'Graphics Interchange Format' are trademarks (tm) of
+ * Compuserve, Incorporated, an H&R Block Company.
+ *
+ * Release Notes: This file contains a decoder routine for GIF images
+ * which is similar, structurally, to the original routine by Steve Wilhite.
+ * It is, however, somewhat noticably faster in most cases.
+ *
+ * ==========================================================
+ */
+
+#if !defined(__ximaGIF_h)
+#define __ximaGIF_h
+
+#include "ximage.h"
+
+#if CXIMAGE_SUPPORT_GIF
+
+typedef int16_t code_int;
+
+/* Various error codes used by decoder */
+#define OUT_OF_MEMORY -10
+#define BAD_CODE_SIZE -20
+#define READ_ERROR -1
+#define WRITE_ERROR -2
+#define OPEN_ERROR -3
+#define CREATE_ERROR -4
+#define BAD_LINE_WIDTH -5
+#define MAX_CODES 4095
+#define GIFBUFTAM 16383
+#define TRANSPARENCY_CODE 0xF9
+
+//LZW GIF Image compression
+#define MAXBITSCODES 12
+#define HSIZE 5003 /* 80% occupancy */
+#define MAXCODE(n_bits) (((code_int) 1 << (n_bits)) - 1)
+#define HashTabOf(i) htab[i]
+#define CodeTabOf(i) codetab[i]
+
+
+class CImageIterator;
+class DLL_EXP CxImageGIF: public CxImage
+{
+#pragma pack(1)
+
+typedef struct tag_gifgce{
+ uint8_t flags; /*res:3|dispmeth:3|userinputflag:1|transpcolflag:1*/
+ uint16_t delaytime;
+ uint8_t transpcolindex;
+} struct_gifgce;
+
+typedef struct tag_dscgif{ /* Logic Screen Descriptor */
+ char header[6]; /* Firma and version */
+ uint16_t scrwidth;
+ uint16_t scrheight;
+ char pflds;
+ char bcindx;
+ char pxasrat;
+} struct_dscgif;
+
+typedef struct tag_image{ /* Image Descriptor */
+ uint16_t l;
+ uint16_t t;
+ uint16_t w;
+ uint16_t h;
+ uint8_t pf;
+} struct_image;
+
+typedef struct tag_TabCol{ /* Tabla de colores */
+ int16_t colres; /* color resolution */
+ int16_t sogct; /* size of global color table */
+ rgb_color paleta[256]; /* paleta */
+} struct_TabCol;
+
+typedef struct tag_RLE{
+ int32_t rl_pixel;
+ int32_t rl_basecode;
+ int32_t rl_count;
+ int32_t rl_table_pixel;
+ int32_t rl_table_max;
+ int32_t just_cleared;
+ int32_t out_bits;
+ int32_t out_bits_init;
+ int32_t out_count;
+ int32_t out_bump;
+ int32_t out_bump_init;
+ int32_t out_clear;
+ int32_t out_clear_init;
+ int32_t max_ocodes;
+ int32_t code_clear;
+ int32_t code_eof;
+ uint32_t obuf;
+ int32_t obits;
+ uint8_t oblock[256];
+ int32_t oblen;
+} struct_RLE;
+#pragma pack()
+
+public:
+ CxImageGIF();
+ ~CxImageGIF();
+
+// bool Load(const TCHAR * imageFileName){ return CxImage::Load(imageFileName,CXIMAGE_FORMAT_GIF);}
+// bool Save(const TCHAR * imageFileName){ return CxImage::Save(imageFileName,CXIMAGE_FORMAT_GIF);}
+
+ bool Decode(CxFile * fp);
+ bool Decode(FILE *fp) { CxIOFile file(fp); return Decode(&file); }
+
+#if CXIMAGE_SUPPORT_ENCODE
+ bool Encode(CxFile * fp);
+ bool Encode(CxFile * fp, CxImage ** pImages, int32_t pagecount, bool bLocalColorMap = false, bool bLocalDispMeth = false);
+ bool Encode(FILE *fp) { CxIOFile file(fp); return Encode(&file); }
+ bool Encode(FILE *fp, CxImage ** pImages, int32_t pagecount, bool bLocalColorMap = false)
+ { CxIOFile file(fp); return Encode(&file, pImages, pagecount, bLocalColorMap); }
+#endif // CXIMAGE_SUPPORT_ENCODE
+
+ void SetLoops(int32_t loops);
+ int32_t GetLoops();
+ void SetComment(const char* sz_comment_in);
+ void GetComment(char* sz_comment_out);
+
+protected:
+ bool DecodeExtension(CxFile *fp);
+ void EncodeHeader(CxFile *fp);
+ void EncodeLoopExtension(CxFile *fp);
+ void EncodeExtension(CxFile *fp);
+ void EncodeBody(CxFile *fp, bool bLocalColorMap = false);
+ void EncodeComment(CxFile *fp);
+ bool EncodeRGB(CxFile *fp);
+ void GifMix(CxImage & imgsrc2, struct_image & imgdesc);
+
+ struct_gifgce gifgce;
+
+ int32_t curx, cury;
+ int32_t CountDown;
+ uint32_t cur_accum;
+ int32_t cur_bits;
+ int32_t interlaced, iypos, istep, iheight, ipass;
+ int32_t ibf;
+ int32_t ibfmax;
+ uint8_t * buf;
+// Implementation
+ int32_t GifNextPixel ();
+ void Putword (int32_t w, CxFile* fp );
+ void compressNONE (int32_t init_bits, CxFile* outfile);
+ void compressLZW (int32_t init_bits, CxFile* outfile);
+ void output (code_int code );
+ void cl_hash (int32_t hsize);
+ void char_out (int32_t c);
+ void flush_char ();
+ int16_t init_exp(int16_t size);
+ int16_t get_next_code(CxFile*);
+ int16_t decoder(CxFile*, CImageIterator* iter, int16_t linewidth, int32_t &bad_code_count);
+ int32_t get_byte(CxFile*);
+ int32_t out_line(CImageIterator* iter, uint8_t *pixels, int32_t linelen);
+ int32_t get_num_frames(CxFile *f,struct_TabCol* TabColSrc,struct_dscgif* dscgif);
+ int32_t seek_next_image(CxFile* fp, int32_t position);
+
+ int16_t curr_size; /* The current code size */
+ int16_t clear; /* Value for a clear code */
+ int16_t ending; /* Value for a ending code */
+ int16_t newcodes; /* First available code */
+ int16_t top_slot; /* Highest code for current size */
+ int16_t slot; /* Last read code */
+
+ /* The following static variables are used
+ * for seperating out codes */
+ int16_t navail_bytes; /* # bytes left in block */
+ int16_t nbits_left; /* # bits left in current uint8_t */
+ uint8_t b1; /* Current uint8_t */
+ uint8_t * byte_buff; /* Current block */
+ uint8_t *pbytes; /* Pointer to next uint8_t in block */
+ /* The reason we have these seperated like this instead of using
+ * a structure like the original Wilhite code did, is because this
+ * stuff generally produces significantly faster code when compiled...
+ * This code is full of similar speedups... (For a good book on writing
+ * C for speed or for space optomisation, see Efficient C by Tom Plum,
+ * published by Plum-Hall Associates...)
+ */
+ uint8_t * stack; /* Stack for storing pixels */
+ uint8_t * suffix; /* Suffix table */
+ uint16_t * prefix; /* Prefix linked list */
+
+//LZW GIF Image compression routines
+ int32_t * htab;
+ uint16_t * codetab;
+ int32_t n_bits; /* number of bits/code */
+ code_int maxcode; /* maximum code, given n_bits */
+ code_int free_ent; /* first unused entry */
+ int32_t clear_flg;
+ int32_t g_init_bits;
+ CxFile* g_outfile;
+ int32_t ClearCode;
+ int32_t EOFCode;
+
+ int32_t a_count;
+ char * accum;
+
+ char * m_comment;
+ int32_t m_loops;
+
+//RLE compression routines
+ void compressRLE( int32_t init_bits, CxFile* outfile);
+ void rle_clear(struct_RLE* rle);
+ void rle_flush(struct_RLE* rle);
+ void rle_flush_withtable(int32_t count, struct_RLE* rle);
+ void rle_flush_clearorrep(int32_t count, struct_RLE* rle);
+ void rle_flush_fromclear(int32_t count,struct_RLE* rle);
+ void rle_output_plain(int32_t c,struct_RLE* rle);
+ void rle_reset_out_clear(struct_RLE* rle);
+ uint32_t rle_compute_triangle_count(uint32_t count, uint32_t nrepcodes);
+ uint32_t rle_isqrt(uint32_t x);
+ void rle_write_block(struct_RLE* rle);
+ void rle_block_out(uint8_t c, struct_RLE* rle);
+ void rle_block_flush(struct_RLE* rle);
+ void rle_output(int32_t val, struct_RLE* rle);
+ void rle_output_flush(struct_RLE* rle);
+};
+
+#endif
+
+#endif
diff --git a/smelt/sdl/CxImage/ximahist.cpp b/smelt/sdl/CxImage/ximahist.cpp new file mode 100644 index 0000000..830337f --- /dev/null +++ b/smelt/sdl/CxImage/ximahist.cpp @@ -0,0 +1,627 @@ +// xImaHist.cpp : histogram functions
+/* 28/01/2004 v1.00 - www.xdp.it
+ * CxImage version 7.0.0 31/Dec/2010
+ */
+
+#include "ximage.h"
+
+#if CXIMAGE_SUPPORT_DSP
+
+////////////////////////////////////////////////////////////////////////////////
+int32_t CxImage::Histogram(int32_t* red, int32_t* green, int32_t* blue, int32_t* gray, int32_t colorspace)
+{
+ if (!pDib) return 0;
+ RGBQUAD color;
+
+ if (red) memset(red,0,256*sizeof(int32_t));
+ if (green) memset(green,0,256*sizeof(int32_t));
+ if (blue) memset(blue,0,256*sizeof(int32_t));
+ if (gray) memset(gray,0,256*sizeof(int32_t));
+
+ int32_t xmin,xmax,ymin,ymax;
+ if (pSelection){
+ xmin = info.rSelectionBox.left; xmax = info.rSelectionBox.right;
+ ymin = info.rSelectionBox.bottom; ymax = info.rSelectionBox.top;
+ } else {
+ xmin = ymin = 0;
+ xmax = head.biWidth; ymax=head.biHeight;
+ }
+
+ for(int32_t y=ymin; y<ymax; y++){
+ for(int32_t x=xmin; x<xmax; x++){
+#if CXIMAGE_SUPPORT_SELECTION
+ if (BlindSelectionIsInside(x,y))
+#endif //CXIMAGE_SUPPORT_SELECTION
+ {
+ switch (colorspace){
+ case 1:
+ color = HSLtoRGB(BlindGetPixelColor(x,y));
+ break;
+ case 2:
+ color = YUVtoRGB(BlindGetPixelColor(x,y));
+ break;
+ case 3:
+ color = YIQtoRGB(BlindGetPixelColor(x,y));
+ break;
+ case 4:
+ color = XYZtoRGB(BlindGetPixelColor(x,y));
+ break;
+ default:
+ color = BlindGetPixelColor(x,y);
+ }
+
+ if (red) red[color.rgbRed]++;
+ if (green) green[color.rgbGreen]++;
+ if (blue) blue[color.rgbBlue]++;
+ if (gray) gray[(uint8_t)RGB2GRAY(color.rgbRed,color.rgbGreen,color.rgbBlue)]++;
+ }
+ }
+ }
+
+ int32_t n=0;
+ for (int32_t i=0; i<256; i++){
+ if (red && red[i]>n) n=red[i];
+ if (green && green[i]>n) n=green[i];
+ if (blue && blue[i]>n) n=blue[i];
+ if (gray && gray[i]>n) n=gray[i];
+ }
+
+ return n;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * HistogramStretch
+ * \param method: 0 = luminance (default), 1 = linked channels , 2 = independent channels.
+ * \param threshold: minimum percentage level in the histogram to recognize it as meaningful. Range: 0.0 to 1.0; default = 0; typical = 0.005 (0.5%);
+ * \return true if everything is ok
+ * \author [dave] and [nipper]; changes [DP]
+ */
+bool CxImage::HistogramStretch(int32_t method, double threshold)
+{
+ if (!pDib) return false;
+
+ double dbScaler = 50.0/head.biHeight;
+ int32_t x,y;
+
+ if ((head.biBitCount==8) && IsGrayScale()){
+
+ double p[256];
+ memset(p, 0, 256*sizeof(double));
+ for (y=0; y<head.biHeight; y++)
+ {
+ info.nProgress = (int32_t)(y*dbScaler);
+ if (info.nEscape) break;
+ for (x=0; x<head.biWidth; x++) {
+ p[BlindGetPixelIndex(x, y)]++;
+ }
+ }
+
+ double maxh = 0;
+ for (y=0; y<255; y++) if (maxh < p[y]) maxh = p[y];
+ threshold *= maxh;
+ int32_t minc = 0;
+ while (minc<255 && p[minc]<=threshold) minc++;
+ int32_t maxc = 255;
+ while (maxc>0 && p[maxc]<=threshold) maxc--;
+
+ if (minc == 0 && maxc == 255) return true;
+ if (minc >= maxc) return true;
+
+ // calculate LUT
+ uint8_t lut[256];
+ for (x = 0; x <256; x++){
+ lut[x] = (uint8_t)max(0,min(255,(255 * (x - minc) / (maxc - minc))));
+ }
+
+ for (y=0; y<head.biHeight; y++) {
+ if (info.nEscape) break;
+ info.nProgress = (int32_t)(50.0+y*dbScaler);
+ for (x=0; x<head.biWidth; x++)
+ {
+ BlindSetPixelIndex(x, y, lut[BlindGetPixelIndex(x, y)]);
+ }
+ }
+ } else {
+ switch(method){
+ case 1:
+ { // <nipper>
+ double p[256];
+ memset(p, 0, 256*sizeof(double));
+ for (y=0; y<head.biHeight; y++)
+ {
+ info.nProgress = (int32_t)(y*dbScaler);
+ if (info.nEscape) break;
+ for (x=0; x<head.biWidth; x++) {
+ RGBQUAD color = BlindGetPixelColor(x, y);
+ p[color.rgbRed]++;
+ p[color.rgbBlue]++;
+ p[color.rgbGreen]++;
+ }
+ }
+ double maxh = 0;
+ for (y=0; y<255; y++) if (maxh < p[y]) maxh = p[y];
+ threshold *= maxh;
+ int32_t minc = 0;
+ while (minc<255 && p[minc]<=threshold) minc++;
+ int32_t maxc = 255;
+ while (maxc>0 && p[maxc]<=threshold) maxc--;
+
+ if (minc == 0 && maxc == 255) return true;
+ if (minc >= maxc) return true;
+
+ // calculate LUT
+ uint8_t lut[256];
+ for (x = 0; x <256; x++){
+ lut[x] = (uint8_t)max(0,min(255,(255 * (x - minc) / (maxc - minc))));
+ }
+
+ // normalize image
+ for (y=0; y<head.biHeight; y++) {
+ if (info.nEscape) break;
+ info.nProgress = (int32_t)(50.0+y*dbScaler);
+
+ for (x=0; x<head.biWidth; x++)
+ {
+ RGBQUAD color = BlindGetPixelColor(x, y);
+
+ color.rgbRed = lut[color.rgbRed];
+ color.rgbBlue = lut[color.rgbBlue];
+ color.rgbGreen = lut[color.rgbGreen];
+
+ BlindSetPixelColor(x, y, color);
+ }
+ }
+ }
+ break;
+ case 2:
+ { // <nipper>
+ double pR[256];
+ memset(pR, 0, 256*sizeof(double));
+ double pG[256];
+ memset(pG, 0, 256*sizeof(double));
+ double pB[256];
+ memset(pB, 0, 256*sizeof(double));
+ for (y=0; y<head.biHeight; y++)
+ {
+ info.nProgress = (int32_t)(y*dbScaler);
+ if (info.nEscape) break;
+ for (int32_t x=0; x<head.biWidth; x++) {
+ RGBQUAD color = BlindGetPixelColor(x, y);
+ pR[color.rgbRed]++;
+ pB[color.rgbBlue]++;
+ pG[color.rgbGreen]++;
+ }
+ }
+
+ double maxh = 0;
+ for (y=0; y<255; y++) if (maxh < pR[y]) maxh = pR[y];
+ double threshold2 = threshold*maxh;
+ int32_t minR = 0;
+ while (minR<255 && pR[minR]<=threshold2) minR++;
+ int32_t maxR = 255;
+ while (maxR>0 && pR[maxR]<=threshold2) maxR--;
+
+ maxh = 0;
+ for (y=0; y<255; y++) if (maxh < pG[y]) maxh = pG[y];
+ threshold2 = threshold*maxh;
+ int32_t minG = 0;
+ while (minG<255 && pG[minG]<=threshold2) minG++;
+ int32_t maxG = 255;
+ while (maxG>0 && pG[maxG]<=threshold2) maxG--;
+
+ maxh = 0;
+ for (y=0; y<255; y++) if (maxh < pB[y]) maxh = pB[y];
+ threshold2 = threshold*maxh;
+ int32_t minB = 0;
+ while (minB<255 && pB[minB]<=threshold2) minB++;
+ int32_t maxB = 255;
+ while (maxB>0 && pB[maxB]<=threshold2) maxB--;
+
+ if (minR == 0 && maxR == 255 && minG == 0 && maxG == 255 && minB == 0 && maxB == 255)
+ return true;
+
+ // calculate LUT
+ uint8_t lutR[256];
+ uint8_t range = maxR - minR;
+ if (range != 0) {
+ for (x = 0; x <256; x++){
+ lutR[x] = (uint8_t)max(0,min(255,(255 * (x - minR) / range)));
+ }
+ } else lutR[minR] = minR;
+
+ uint8_t lutG[256];
+ range = maxG - minG;
+ if (range != 0) {
+ for (x = 0; x <256; x++){
+ lutG[x] = (uint8_t)max(0,min(255,(255 * (x - minG) / range)));
+ }
+ } else lutG[minG] = minG;
+
+ uint8_t lutB[256];
+ range = maxB - minB;
+ if (range != 0) {
+ for (x = 0; x <256; x++){
+ lutB[x] = (uint8_t)max(0,min(255,(255 * (x - minB) / range)));
+ }
+ } else lutB[minB] = minB;
+
+ // normalize image
+ for (y=0; y<head.biHeight; y++)
+ {
+ info.nProgress = (int32_t)(50.0+y*dbScaler);
+ if (info.nEscape) break;
+
+ for (x=0; x<head.biWidth; x++)
+ {
+ RGBQUAD color = BlindGetPixelColor(x, y);
+
+ color.rgbRed = lutR[color.rgbRed];
+ color.rgbBlue = lutB[color.rgbBlue];
+ color.rgbGreen = lutG[color.rgbGreen];
+
+ BlindSetPixelColor(x, y, color);
+ }
+ }
+ }
+ break;
+ default:
+ { // <dave>
+ double p[256];
+ memset(p, 0, 256*sizeof(double));
+ for (y=0; y<head.biHeight; y++)
+ {
+ info.nProgress = (int32_t)(y*dbScaler);
+ if (info.nEscape) break;
+ for (x=0; x<head.biWidth; x++) {
+ RGBQUAD color = BlindGetPixelColor(x, y);
+ p[RGB2GRAY(color.rgbRed, color.rgbGreen, color.rgbBlue)]++;
+ }
+ }
+
+ double maxh = 0;
+ for (y=0; y<255; y++) if (maxh < p[y]) maxh = p[y];
+ threshold *= maxh;
+ int32_t minc = 0;
+ while (minc<255 && p[minc]<=threshold) minc++;
+ int32_t maxc = 255;
+ while (maxc>0 && p[maxc]<=threshold) maxc--;
+
+ if (minc == 0 && maxc == 255) return true;
+ if (minc >= maxc) return true;
+
+ // calculate LUT
+ uint8_t lut[256];
+ for (x = 0; x <256; x++){
+ lut[x] = (uint8_t)max(0,min(255,(255 * (x - minc) / (maxc - minc))));
+ }
+
+ for(y=0; y<head.biHeight; y++){
+ info.nProgress = (int32_t)(50.0+y*dbScaler);
+ if (info.nEscape) break;
+ for(x=0; x<head.biWidth; x++){
+
+ RGBQUAD color = BlindGetPixelColor( x, y );
+ RGBQUAD yuvClr = RGBtoYUV(color);
+ yuvClr.rgbRed = lut[yuvClr.rgbRed];
+ color = YUVtoRGB(yuvClr);
+ BlindSetPixelColor( x, y, color );
+ }
+ }
+ }
+ }
+ }
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+// HistogramEqualize function by <dave> : dave(at)posortho(dot)com
+bool CxImage::HistogramEqualize()
+{
+ if (!pDib) return false;
+
+ int32_t histogram[256];
+ int32_t map[256];
+ int32_t equalize_map[256];
+ int32_t x, y, i, j;
+ RGBQUAD color;
+ RGBQUAD yuvClr;
+ uint32_t YVal, high, low;
+
+ memset( &histogram, 0, sizeof(int32_t) * 256 );
+ memset( &map, 0, sizeof(int32_t) * 256 );
+ memset( &equalize_map, 0, sizeof(int32_t) * 256 );
+
+ // form histogram
+ for(y=0; y < head.biHeight; y++){
+ info.nProgress = (int32_t)(50*y/head.biHeight);
+ if (info.nEscape) break;
+ for(x=0; x < head.biWidth; x++){
+ color = BlindGetPixelColor( x, y );
+ YVal = (uint32_t)RGB2GRAY(color.rgbRed, color.rgbGreen, color.rgbBlue);
+ histogram[YVal]++;
+ }
+ }
+
+ // integrate the histogram to get the equalization map.
+ j = 0;
+ for(i=0; i <= 255; i++){
+ j += histogram[i];
+ map[i] = j;
+ }
+
+ // equalize
+ low = map[0];
+ high = map[255];
+ if (low == high) return false;
+ for( i = 0; i <= 255; i++ ){
+ equalize_map[i] = (uint32_t)((((double)( map[i] - low ) ) * 255) / ( high - low ) );
+ }
+
+ // stretch the histogram
+ if(head.biClrUsed == 0){ // No Palette
+ for( y = 0; y < head.biHeight; y++ ){
+ info.nProgress = (int32_t)(50+50*y/head.biHeight);
+ if (info.nEscape) break;
+ for( x = 0; x < head.biWidth; x++ ){
+
+ color = BlindGetPixelColor( x, y );
+ yuvClr = RGBtoYUV(color);
+
+ yuvClr.rgbRed = (uint8_t)equalize_map[yuvClr.rgbRed];
+
+ color = YUVtoRGB(yuvClr);
+ BlindSetPixelColor( x, y, color );
+ }
+ }
+ } else { // Palette
+ for( i = 0; i < (int32_t)head.biClrUsed; i++ ){
+
+ color = GetPaletteColor((uint8_t)i);
+ yuvClr = RGBtoYUV(color);
+
+ yuvClr.rgbRed = (uint8_t)equalize_map[yuvClr.rgbRed];
+
+ color = YUVtoRGB(yuvClr);
+ SetPaletteColor( (uint8_t)i, color );
+ }
+ }
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+// HistogramNormalize function by <dave> : dave(at)posortho(dot)com
+bool CxImage::HistogramNormalize()
+{
+ if (!pDib) return false;
+
+ int32_t histogram[256];
+ int32_t threshold_intensity, intense;
+ int32_t x, y, i;
+ uint32_t normalize_map[256];
+ uint32_t high, low, YVal;
+
+ RGBQUAD color;
+ RGBQUAD yuvClr;
+
+ memset( &histogram, 0, sizeof( int32_t ) * 256 );
+ memset( &normalize_map, 0, sizeof( uint32_t ) * 256 );
+
+ // form histogram
+ for(y=0; y < head.biHeight; y++){
+ info.nProgress = (int32_t)(50*y/head.biHeight);
+ if (info.nEscape) break;
+ for(x=0; x < head.biWidth; x++){
+ color = BlindGetPixelColor( x, y );
+ YVal = (uint32_t)RGB2GRAY(color.rgbRed, color.rgbGreen, color.rgbBlue);
+ histogram[YVal]++;
+ }
+ }
+
+ // find histogram boundaries by locating the 1 percent levels
+ threshold_intensity = ( head.biWidth * head.biHeight) / 100;
+
+ intense = 0;
+ for( low = 0; low < 255; low++ ){
+ intense += histogram[low];
+ if( intense > threshold_intensity ) break;
+ }
+
+ intense = 0;
+ for( high = 255; high != 0; high--){
+ intense += histogram[ high ];
+ if( intense > threshold_intensity ) break;
+ }
+
+ if ( low == high ){
+ // Unreasonable contrast; use zero threshold to determine boundaries.
+ threshold_intensity = 0;
+ intense = 0;
+ for( low = 0; low < 255; low++){
+ intense += histogram[low];
+ if( intense > threshold_intensity ) break;
+ }
+ intense = 0;
+ for( high = 255; high != 0; high-- ){
+ intense += histogram [high ];
+ if( intense > threshold_intensity ) break;
+ }
+ }
+ if( low == high ) return false; // zero span bound
+
+ // Stretch the histogram to create the normalized image mapping.
+ for(i = 0; i <= 255; i++){
+ if ( i < (int32_t) low ){
+ normalize_map[i] = 0;
+ } else {
+ if(i > (int32_t) high)
+ normalize_map[i] = 255;
+ else
+ normalize_map[i] = ( 255 - 1) * ( i - low) / ( high - low );
+ }
+ }
+
+ // Normalize
+ if( head.biClrUsed == 0 ){
+ for( y = 0; y < head.biHeight; y++ ){
+ info.nProgress = (int32_t)(50+50*y/head.biHeight);
+ if (info.nEscape) break;
+ for( x = 0; x < head.biWidth; x++ ){
+
+ color = BlindGetPixelColor( x, y );
+ yuvClr = RGBtoYUV( color );
+
+ yuvClr.rgbRed = (uint8_t)normalize_map[yuvClr.rgbRed];
+
+ color = YUVtoRGB( yuvClr );
+ BlindSetPixelColor( x, y, color );
+ }
+ }
+ } else {
+ for(i = 0; i < (int32_t)head.biClrUsed; i++){
+
+ color = GetPaletteColor( (uint8_t)i );
+ yuvClr = RGBtoYUV( color );
+
+ yuvClr.rgbRed = (uint8_t)normalize_map[yuvClr.rgbRed];
+
+ color = YUVtoRGB( yuvClr );
+ SetPaletteColor( (uint8_t)i, color );
+ }
+ }
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+// HistogramLog function by <dave> : dave(at)posortho(dot)com
+bool CxImage::HistogramLog()
+{
+ if (!pDib) return false;
+
+ //q(i,j) = 255/log(1 + |high|) * log(1 + |p(i,j)|);
+ int32_t x, y, i;
+ RGBQUAD color;
+ RGBQUAD yuvClr;
+
+ uint32_t YVal, high = 1;
+
+ // Find Highest Luminance Value in the Image
+ if( head.biClrUsed == 0 ){ // No Palette
+ for(y=0; y < head.biHeight; y++){
+ info.nProgress = (int32_t)(50*y/head.biHeight);
+ if (info.nEscape) break;
+ for(x=0; x < head.biWidth; x++){
+ color = BlindGetPixelColor( x, y );
+ YVal = (uint32_t)RGB2GRAY(color.rgbRed, color.rgbGreen, color.rgbBlue);
+ if (YVal > high ) high = YVal;
+ }
+ }
+ } else { // Palette
+ for(i = 0; i < (int32_t)head.biClrUsed; i++){
+ color = GetPaletteColor((uint8_t)i);
+ YVal = (uint32_t)RGB2GRAY(color.rgbRed, color.rgbGreen, color.rgbBlue);
+ if (YVal > high ) high = YVal;
+ }
+ }
+
+ // Logarithm Operator
+ double k = 255.0 / ::log( 1.0 + (double)high );
+ if( head.biClrUsed == 0 ){
+ for( y = 0; y < head.biHeight; y++ ){
+ info.nProgress = (int32_t)(50+50*y/head.biHeight);
+ if (info.nEscape) break;
+ for( x = 0; x < head.biWidth; x++ ){
+
+ color = BlindGetPixelColor( x, y );
+ yuvClr = RGBtoYUV( color );
+
+ yuvClr.rgbRed = (uint8_t)(k * ::log( 1.0 + (double)yuvClr.rgbRed ) );
+
+ color = YUVtoRGB( yuvClr );
+ BlindSetPixelColor( x, y, color );
+ }
+ }
+ } else {
+ for(i = 0; i < (int32_t)head.biClrUsed; i++){
+
+ color = GetPaletteColor( (uint8_t)i );
+ yuvClr = RGBtoYUV( color );
+
+ yuvClr.rgbRed = (uint8_t)(k * ::log( 1.0 + (double)yuvClr.rgbRed ) );
+
+ color = YUVtoRGB( yuvClr );
+ SetPaletteColor( (uint8_t)i, color );
+ }
+ }
+
+ return true;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// HistogramRoot function by <dave> : dave(at)posortho(dot)com
+bool CxImage::HistogramRoot()
+{
+ if (!pDib) return false;
+ //q(i,j) = sqrt(|p(i,j)|);
+
+ int32_t x, y, i;
+ RGBQUAD color;
+ RGBQUAD yuvClr;
+ double dtmp;
+ uint32_t YVal, high = 1;
+
+ // Find Highest Luminance Value in the Image
+ if( head.biClrUsed == 0 ){ // No Palette
+ for(y=0; y < head.biHeight; y++){
+ info.nProgress = (int32_t)(50*y/head.biHeight);
+ if (info.nEscape) break;
+ for(x=0; x < head.biWidth; x++){
+ color = BlindGetPixelColor( x, y );
+ YVal = (uint32_t)RGB2GRAY(color.rgbRed, color.rgbGreen, color.rgbBlue);
+ if (YVal > high ) high = YVal;
+ }
+ }
+ } else { // Palette
+ for(i = 0; i < (int32_t)head.biClrUsed; i++){
+ color = GetPaletteColor((uint8_t)i);
+ YVal = (uint32_t)RGB2GRAY(color.rgbRed, color.rgbGreen, color.rgbBlue);
+ if (YVal > high ) high = YVal;
+ }
+ }
+
+ // Root Operator
+ double k = 256.0 / ::sqrt( 1.0 + (double)high );
+ if( head.biClrUsed == 0 ){
+ for( y = 0; y < head.biHeight; y++ ){
+ info.nProgress = (int32_t)(50+50*y/head.biHeight);
+ if (info.nEscape) break;
+ for( x = 0; x < head.biWidth; x++ ){
+
+ color = BlindGetPixelColor( x, y );
+ yuvClr = RGBtoYUV( color );
+
+ dtmp = k * ::sqrt( (double)yuvClr.rgbRed );
+ if ( dtmp > 255.0 ) dtmp = 255.0;
+ if ( dtmp < 0 ) dtmp = 0;
+ yuvClr.rgbRed = (uint8_t)dtmp;
+
+ color = YUVtoRGB( yuvClr );
+ BlindSetPixelColor( x, y, color );
+ }
+ }
+ } else {
+ for(i = 0; i < (int32_t)head.biClrUsed; i++){
+
+ color = GetPaletteColor( (uint8_t)i );
+ yuvClr = RGBtoYUV( color );
+
+ dtmp = k * ::sqrt( (double)yuvClr.rgbRed );
+ if ( dtmp > 255.0 ) dtmp = 255.0;
+ if ( dtmp < 0 ) dtmp = 0;
+ yuvClr.rgbRed = (uint8_t)dtmp;
+
+ color = YUVtoRGB( yuvClr );
+ SetPaletteColor( (uint8_t)i, color );
+ }
+ }
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+#endif
diff --git a/smelt/sdl/CxImage/ximaico.cpp b/smelt/sdl/CxImage/ximaico.cpp new file mode 100644 index 0000000..a808697 --- /dev/null +++ b/smelt/sdl/CxImage/ximaico.cpp @@ -0,0 +1,470 @@ +/*
+ * File: ximaico.cpp
+ * Purpose: Platform Independent ICON Image Class Loader and Writer (MS version)
+ * 07/Aug/2001 Davide Pizzolato - www.xdp.it
+ * CxImage version 7.0.0 31/Dec/2010
+ */
+
+#include "ximaico.h"
+
+#if CXIMAGE_SUPPORT_ICO
+
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_SUPPORT_DECODE
+////////////////////////////////////////////////////////////////////////////////
+bool CxImageICO::Decode(CxFile *hFile)
+{
+ if (hFile==NULL) return false;
+
+ uint32_t off = hFile->Tell(); //<yuandi>
+ int32_t page=info.nFrame; //internal icon structure indexes
+
+ // read the first part of the header
+ ICONHEADER icon_header;
+ hFile->Read(&icon_header,sizeof(ICONHEADER),1);
+
+ icon_header.idType = m_ntohs(icon_header.idType);
+ icon_header.idCount = m_ntohs(icon_header.idCount);
+
+ // check if it's an icon or a cursor
+ if ((icon_header.idReserved == 0) && ((icon_header.idType == 1)||(icon_header.idType == 2))) {
+
+ info.nNumFrames = icon_header.idCount;
+
+ // load the icon descriptions
+ ICONDIRENTRY *icon_list = (ICONDIRENTRY *)malloc(icon_header.idCount * sizeof(ICONDIRENTRY));
+ int32_t c;
+ for (c = 0; c < icon_header.idCount; c++) {
+ hFile->Read(icon_list + c, sizeof(ICONDIRENTRY), 1);
+
+ icon_list[c].wPlanes = m_ntohs(icon_list[c].wPlanes);
+ icon_list[c].wBitCount = m_ntohs(icon_list[c].wBitCount);
+ icon_list[c].dwBytesInRes = m_ntohl(icon_list[c].dwBytesInRes);
+ icon_list[c].dwImageOffset = m_ntohl(icon_list[c].dwImageOffset);
+ }
+
+ if ((page>=0)&&(page<icon_header.idCount)){
+
+ if (info.nEscape == -1) {
+ // Return output dimensions only
+ head.biWidth = icon_list[page].bWidth;
+ head.biHeight = icon_list[page].bHeight;
+#if CXIMAGE_SUPPORT_PNG
+ if (head.biWidth==0 && head.biHeight==0)
+ { // Vista icon support
+ hFile->Seek(off + icon_list[page].dwImageOffset, SEEK_SET);
+ CxImage png;
+ png.SetEscape(-1);
+ if (png.Decode(hFile,CXIMAGE_FORMAT_PNG)){
+ Transfer(png);
+ info.nNumFrames = icon_header.idCount;
+ }
+ }
+#endif //CXIMAGE_SUPPORT_PNG
+ free(icon_list);
+ info.dwType = CXIMAGE_FORMAT_ICO;
+ return true;
+ }
+
+ // get the bit count for the colors in the icon <CoreyRLucier>
+ BITMAPINFOHEADER bih;
+ hFile->Seek(off + icon_list[page].dwImageOffset, SEEK_SET);
+
+ if (icon_list[page].bWidth==0 && icon_list[page].bHeight==0)
+ { // Vista icon support
+#if CXIMAGE_SUPPORT_PNG
+ CxImage png;
+ if (png.Decode(hFile,CXIMAGE_FORMAT_PNG)){
+ Transfer(png);
+ info.nNumFrames = icon_header.idCount;
+ }
+ SetType(CXIMAGE_FORMAT_ICO);
+#endif //CXIMAGE_SUPPORT_PNG
+ }
+ else
+ { // standard icon
+ hFile->Read(&bih,sizeof(BITMAPINFOHEADER),1);
+
+ bihtoh(&bih);
+
+ c = bih.biBitCount;
+
+ // allocate memory for one icon
+ Create(icon_list[page].bWidth,icon_list[page].bHeight, c, CXIMAGE_FORMAT_ICO); //image creation
+
+ // read the palette
+ RGBQUAD pal[256];
+ if (bih.biClrUsed)
+ hFile->Read(pal,bih.biClrUsed*sizeof(RGBQUAD), 1);
+ else
+ hFile->Read(pal,head.biClrUsed*sizeof(RGBQUAD), 1);
+
+ SetPalette(pal,head.biClrUsed); //palette assign
+
+ //read the icon
+ if (c<=24){
+ hFile->Read(info.pImage, head.biSizeImage, 1);
+ } else { // 32 bit icon
+ uint8_t* buf=(uint8_t*)malloc(4*head.biHeight*head.biWidth);
+ uint8_t* src = buf;
+ hFile->Read(buf, 4*head.biHeight*head.biWidth, 1);
+#if CXIMAGE_SUPPORT_ALPHA
+ if (!AlphaIsValid()) AlphaCreate();
+#endif //CXIMAGE_SUPPORT_ALPHA
+ for (int32_t y = 0; y < head.biHeight; y++) {
+ uint8_t* dst = GetBits(y);
+ for(int32_t x=0;x<head.biWidth;x++){
+ *dst++=src[0];
+ *dst++=src[1];
+ *dst++=src[2];
+#if CXIMAGE_SUPPORT_ALPHA
+ AlphaSet(x,y,src[3]);
+#endif //CXIMAGE_SUPPORT_ALPHA
+ src+=4;
+ }
+ }
+ free(buf);
+ }
+ // apply the AND and XOR masks
+ int32_t maskwdt = ((head.biWidth+31) / 32) * 4; //line width of AND mask (always 1 Bpp)
+ int32_t masksize = head.biHeight * maskwdt; //size of mask
+ uint8_t *mask = (uint8_t *)malloc(masksize);
+ if (hFile->Read(mask, masksize, 1)){
+
+ bool bGoodMask=false;
+ for (int32_t im=0;im<masksize;im++){
+ if (mask[im]!=255){
+ bGoodMask=true;
+ break;
+ }
+ }
+
+ if (bGoodMask){
+#if CXIMAGE_SUPPORT_ALPHA
+ bool bNeedAlpha = false;
+ if (!AlphaIsValid()){
+ AlphaCreate();
+ } else {
+ bNeedAlpha=true; //32bit icon
+ }
+ int32_t x,y;
+ for (y = 0; y < head.biHeight; y++) {
+ for (x = 0; x < head.biWidth; x++) {
+ if (((mask[y*maskwdt+(x>>3)]>>(7-x%8))&0x01)){
+ AlphaSet(x,y,0);
+ bNeedAlpha=true;
+ }
+ }
+ }
+ if (!bNeedAlpha) AlphaDelete();
+#endif //CXIMAGE_SUPPORT_ALPHA
+
+ //check if there is only one transparent color
+ RGBQUAD cc,ct;
+ int32_t nTransColors=0;
+ int32_t nTransIndex=0;
+ for (y = 0; y < head.biHeight; y++){
+ for (x = 0; x < head.biWidth; x++){
+ if (((mask[y*maskwdt+(x>>3)] >> (7-x%8)) & 0x01)){
+ cc = GetPixelColor(x,y,false);
+ if (nTransColors==0){
+ nTransIndex = GetPixelIndex(x,y);
+ nTransColors++;
+ ct = cc;
+ } else {
+ if (memcmp(&cc, &ct, sizeof(RGBQUAD)) != 0){
+ nTransColors++;
+ }
+ }
+ }
+ }
+ }
+ if (nTransColors==1 && c<=8){
+ SetTransColor(ct);
+ SetTransIndex(nTransIndex);
+#if CXIMAGE_SUPPORT_ALPHA
+ AlphaDelete(); //because we have a unique transparent color in the image
+#endif //CXIMAGE_SUPPORT_ALPHA
+ }
+
+ // <vho> - Transparency support w/o Alpha support
+ if (c <= 8){ // only for icons with less than 256 colors (XP icons need alpha).
+
+ // find a color index, which is not used in the image
+ // it is almost sure to find one, bcs. nobody uses all possible colors for an icon
+
+ uint8_t colorsUsed[256];
+ memset(colorsUsed, 0, sizeof(colorsUsed));
+
+ for (y = 0; y < head.biHeight; y++){
+ for (x = 0; x < head.biWidth; x++){
+ colorsUsed[BlindGetPixelIndex(x,y)] = 1;
+ }
+ }
+
+ int32_t iTransIdx = -1;
+ for (x = (int32_t)(head.biClrUsed-1); x>=0 ; x--){
+ if (colorsUsed[x] == 0){
+ iTransIdx = x; // this one is not in use. we may use it as transparent color
+ break;
+ }
+ }
+
+ // Go thru image and set unused color as transparent index if needed
+ if (iTransIdx >= 0){
+ bool bNeedTrans = false;
+ for (y = 0; y < head.biHeight; y++){
+ for (x = 0; x < head.biWidth; x++){
+ // AND mask (Each Byte represents 8 Pixels)
+ if (((mask[y*maskwdt+(x>>3)] >> (7-x%8)) & 0x01)){
+ // AND mask is set (!=0). This is a transparent part
+ SetPixelIndex(x, y, (uint8_t)iTransIdx);
+ bNeedTrans = true;
+ }
+ }
+ }
+ // set transparent index if needed
+ if (bNeedTrans) SetTransIndex(iTransIdx);
+#if CXIMAGE_SUPPORT_ALPHA
+ AlphaDelete(); //because we have a transparent color in the palette
+#endif //CXIMAGE_SUPPORT_ALPHA
+ }
+ }
+ } else {
+ SetTransIndex(0); //empty mask, set black as transparent color
+ Negative();
+ }
+ }
+ free(mask);
+ }
+ free(icon_list);
+ // icon has been loaded successfully!
+ return true;
+ }
+ free(icon_list);
+ }
+ return false;
+}
+////////////////////////////////////////////////////////////////////////////////
+#endif //CXIMAGE_SUPPORT_DECODE
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_SUPPORT_ENCODE
+////////////////////////////////////////////////////////////////////////////////
+// Thanks to <Alas>
+bool CxImageICO::Encode(CxFile * hFile, CxImage ** pImages, int32_t nPageCount)
+{
+ cx_try
+ {
+ if (hFile==NULL) cx_throw("invalid file pointer");
+ if (pImages==NULL || nPageCount<=0) cx_throw("multipage ICO, no images!");
+
+ int32_t i;
+ for (i=0; i<nPageCount; i++){
+ if (pImages[i]==NULL)
+ cx_throw("Bad image pointer");
+ if (!(pImages[i]->IsValid()))
+ cx_throw("Empty image");
+ }
+
+ CxImageICO ghost;
+ for (i=0; i<nPageCount; i++){ //write headers
+ ghost.Ghost(pImages[i]);
+ ghost.info.nNumFrames = nPageCount;
+ if (i==0) {
+ if (!ghost.Encode(hFile,false,nPageCount))
+ cx_throw("Error writing ICO file header");
+ }
+ if (!ghost.Encode(hFile,true,nPageCount))
+ cx_throw("Error saving ICO image header");
+ }
+ for (i=0; i<nPageCount; i++){ //write bodies
+ ghost.Ghost(pImages[i]);
+ ghost.info.nNumFrames = nPageCount;
+ if (!ghost.Encode(hFile,true,i))
+ cx_throw("Error saving ICO body");
+ }
+
+ } cx_catch {
+ if (strcmp(message,"")) strncpy(info.szLastError,message,255);
+ return false;
+ }
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+bool CxImageICO::Encode(CxFile * hFile, bool bAppend, int32_t nPageCount)
+{
+ if (EncodeSafeCheck(hFile)) return false;
+
+#if CXIMAGE_SUPPORT_PNG == 0
+ //check format limits
+ if ((head.biWidth>255)||(head.biHeight>255)){
+ strcpy(info.szLastError,"Can't save this image as icon");
+ return false;
+ }
+#endif
+
+ //prepare the palette struct
+ RGBQUAD* pal=GetPalette();
+ if (head.biBitCount<=8 && pal==NULL) return false;
+
+ int32_t maskwdt=((head.biWidth+31)/32)*4; //mask line width
+ int32_t masksize=head.biHeight * maskwdt; //size of mask
+ int32_t bitcount=head.biBitCount;
+ int32_t imagesize=head.biSizeImage;
+#if CXIMAGE_SUPPORT_ALPHA
+ if (AlphaIsValid() && head.biClrUsed==0){
+ bitcount=32;
+ imagesize=4*head.biHeight*head.biWidth;
+ }
+#endif
+
+ //fill the icon headers
+ int32_t nPages = nPageCount;
+ if (nPages<1) nPages = 1;
+
+ ICONHEADER icon_header={0,1,nPages};
+
+ if (!bAppend)
+ m_dwImageOffset = sizeof(ICONHEADER) + nPages * sizeof(ICONDIRENTRY);
+
+ uint32_t dwBytesInRes = sizeof(BITMAPINFOHEADER)+head.biClrUsed*sizeof(RGBQUAD)+imagesize+masksize;
+
+ ICONDIRENTRY icon_list={
+ (uint8_t)head.biWidth,
+ (uint8_t)head.biHeight,
+ (uint8_t)head.biClrUsed,
+ 0, 0,
+ (uint16_t)bitcount,
+ dwBytesInRes,
+ m_dwImageOffset
+ };
+
+ BITMAPINFOHEADER bi={
+ sizeof(BITMAPINFOHEADER),
+ head.biWidth,
+ 2*head.biHeight,
+ 1,
+ (uint16_t)bitcount,
+ 0, imagesize,
+ 0, 0, 0, 0
+ };
+
+#if CXIMAGE_SUPPORT_PNG // Vista icon support
+ CxImage png(*this);
+ CxMemFile memfile;
+ if (head.biWidth>255 || head.biHeight>255){
+ icon_list.bWidth = icon_list.bHeight = 0;
+ memfile.Open();
+ png.Encode(&memfile,CXIMAGE_FORMAT_PNG);
+ icon_list.dwBytesInRes = dwBytesInRes = memfile.Size();
+ }
+#endif //CXIMAGE_SUPPORT_PNG
+
+ if (!bAppend){
+ icon_header.idType = m_ntohs(icon_header.idType);
+ icon_header.idCount = m_ntohs(icon_header.idCount);
+ hFile->Write(&icon_header,sizeof(ICONHEADER),1); //write the file header
+ icon_header.idType = m_ntohs(icon_header.idType);
+ icon_header.idCount = m_ntohs(icon_header.idCount);
+ }
+
+
+ if ((bAppend && nPageCount==info.nNumFrames) || (!bAppend && nPageCount==0)){
+ icon_list.wPlanes = m_ntohs(icon_list.wPlanes);
+ icon_list.wBitCount = m_ntohs(icon_list.wBitCount);
+ icon_list.dwBytesInRes = m_ntohl(icon_list.dwBytesInRes);
+ icon_list.dwImageOffset = m_ntohl(icon_list.dwImageOffset);
+ hFile->Write(&icon_list,sizeof(ICONDIRENTRY),1); //write the image entry
+ icon_list.wPlanes = m_ntohs(icon_list.wPlanes);
+ icon_list.wBitCount = m_ntohs(icon_list.wBitCount);
+ icon_list.dwBytesInRes = m_ntohl(icon_list.dwBytesInRes);
+ icon_list.dwImageOffset = m_ntohl(icon_list.dwImageOffset);
+
+ m_dwImageOffset += dwBytesInRes; //update offset for next header
+ }
+
+ if ((bAppend && nPageCount<info.nNumFrames) || (!bAppend && nPageCount==0))
+ {
+#if CXIMAGE_SUPPORT_PNG
+ if (icon_list.bWidth==0 && icon_list.bHeight==0) { // Vista icon support
+ hFile->Write(memfile.GetBuffer(false),dwBytesInRes,1);
+ } else
+#endif //CXIMAGE_SUPPORT_PNG
+ { // standard icon
+ bihtoh(&bi);
+ hFile->Write(&bi,sizeof(BITMAPINFOHEADER),1); //write the image header
+ bihtoh(&bi);
+
+ bool bTransparent = info.nBkgndIndex >= 0;
+ RGBQUAD ct = GetTransColor();
+ if (pal){
+ if (bTransparent) SetPaletteColor((uint8_t)info.nBkgndIndex,0,0,0,0);
+ hFile->Write(pal,head.biClrUsed*sizeof(RGBQUAD),1); //write palette
+ if (bTransparent) SetPaletteColor((uint8_t)info.nBkgndIndex,ct);
+ }
+
+#if CXIMAGE_SUPPORT_ALPHA
+ if (AlphaIsValid() && head.biClrUsed==0){
+ uint8_t* buf=(uint8_t*)malloc(imagesize);
+ uint8_t* dst = buf;
+ for (int32_t y = 0; y < head.biHeight; y++) {
+ uint8_t* src = GetBits(y);
+ for(int32_t x=0;x<head.biWidth;x++){
+ *dst++=*src++;
+ *dst++=*src++;
+ *dst++=*src++;
+ *dst++=AlphaGet(x,y);
+ }
+ }
+ hFile->Write(buf,imagesize, 1);
+ free(buf);
+ } else {
+ hFile->Write(info.pImage,imagesize,1); //write image
+ }
+#else
+ hFile->Write(info.pImage,imagesize,1); //write image
+#endif
+
+ //save transparency mask
+ uint8_t* mask=(uint8_t*)calloc(masksize,1); //create empty AND/XOR masks
+ if (!mask) return false;
+
+ //prepare the variables to build the mask
+ uint8_t* iDst;
+ int32_t pos,i;
+ RGBQUAD c={0,0,0,0};
+ int32_t* pc = (int32_t*)&c;
+ int32_t* pct= (int32_t*)&ct;
+#if CXIMAGE_SUPPORT_ALPHA
+ bool bAlphaPaletteIsValid = AlphaPaletteIsValid();
+ bool bAlphaIsValid = AlphaIsValid();
+#endif
+ //build the mask
+ for (int32_t y = 0; y < head.biHeight; y++) {
+ for (int32_t x = 0; x < head.biWidth; x++) {
+ i=0;
+#if CXIMAGE_SUPPORT_ALPHA
+ if (bAlphaIsValid && AlphaGet(x,y)==0) i=1;
+ if (bAlphaPaletteIsValid && BlindGetPixelColor(x,y).rgbReserved==0) i=1;
+#endif
+ c=GetPixelColor(x,y,false);
+ if (bTransparent && *pc==*pct) i=1;
+ iDst = mask + y*maskwdt + (x>>3);
+ pos = 7-x%8;
+ *iDst &= ~(0x01<<pos);
+ *iDst |= ((i & 0x01)<<pos);
+ }
+ }
+ //write AND/XOR masks
+ hFile->Write(mask,masksize,1);
+ free(mask);
+ }
+ }
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+#endif // CXIMAGE_SUPPORT_ENCODE
+////////////////////////////////////////////////////////////////////////////////
+#endif // CXIMAGE_SUPPORT_ICO
+
diff --git a/smelt/sdl/CxImage/ximaico.h b/smelt/sdl/CxImage/ximaico.h new file mode 100644 index 0000000..8d81b02 --- /dev/null +++ b/smelt/sdl/CxImage/ximaico.h @@ -0,0 +1,58 @@ +/*
+ * File: ximaico.h
+ * Purpose: ICON Image Class Loader and Writer
+ */
+/* ==========================================================
+ * CxImageICO (c) 07/Aug/2001 Davide Pizzolato - www.xdp.it
+ * For conditions of distribution and use, see copyright notice in ximage.h
+ * ==========================================================
+ */
+#if !defined(__ximaICO_h)
+#define __ximaICO_h
+
+#include "ximage.h"
+
+#if CXIMAGE_SUPPORT_ICO
+
+class CxImageICO: public CxImage
+{
+typedef struct tagIconDirectoryEntry {
+ uint8_t bWidth;
+ uint8_t bHeight;
+ uint8_t bColorCount;
+ uint8_t bReserved;
+ uint16_t wPlanes;
+ uint16_t wBitCount;
+ uint32_t dwBytesInRes;
+ uint32_t dwImageOffset;
+} ICONDIRENTRY;
+
+typedef struct tagIconDir {
+ uint16_t idReserved;
+ uint16_t idType;
+ uint16_t idCount;
+} ICONHEADER;
+
+public:
+ CxImageICO(): CxImage(CXIMAGE_FORMAT_ICO) {m_dwImageOffset=0;}
+
+// bool Load(const TCHAR * imageFileName){ return CxImage::Load(imageFileName,CXIMAGE_FORMAT_ICO);}
+// bool Save(const TCHAR * imageFileName){ return CxImage::Save(imageFileName,CXIMAGE_FORMAT_ICO);}
+ bool Decode(CxFile * hFile);
+ bool Decode(FILE *hFile) { CxIOFile file(hFile); return Decode(&file); }
+
+#if CXIMAGE_SUPPORT_ENCODE
+ bool Encode(CxFile * hFile, bool bAppend=false, int32_t nPageCount=0);
+ bool Encode(CxFile * hFile, CxImage ** pImages, int32_t nPageCount);
+ bool Encode(FILE *hFile, bool bAppend=false, int32_t nPageCount=0)
+ { CxIOFile file(hFile); return Encode(&file,bAppend,nPageCount); }
+ bool Encode(FILE *hFile, CxImage ** pImages, int32_t nPageCount)
+ { CxIOFile file(hFile); return Encode(&file, pImages, nPageCount); }
+#endif // CXIMAGE_SUPPORT_ENCODE
+protected:
+ uint32_t m_dwImageOffset;
+};
+
+#endif
+
+#endif
diff --git a/smelt/sdl/CxImage/ximainfo.cpp b/smelt/sdl/CxImage/ximainfo.cpp new file mode 100644 index 0000000..582d9ed --- /dev/null +++ b/smelt/sdl/CxImage/ximainfo.cpp @@ -0,0 +1,958 @@ +// ximainfo.cpp : main attributes
+/* 03/10/2004 v1.00 - Davide Pizzolato - www.xdp.it
+ * CxImage version 7.0.0 31/Dec/2010
+ */
+
+#include "ximage.h"
+
+#if defined(_LINUX) || defined(__APPLE__)
+ #define _tcsnicmp(a,b,c) strcasecmp(a,b)
+#endif
+
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * \return the color used for transparency, and/or for background color
+ */
+RGBQUAD CxImage::GetTransColor()
+{
+ if (head.biBitCount<24 && info.nBkgndIndex>=0) return GetPaletteColor((uint8_t)info.nBkgndIndex);
+ return info.nBkgndColor;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Gets the index used for transparency. Returns -1 for no transparancy.
+ */
+int32_t CxImage::GetTransIndex() const
+{
+ return info.nBkgndIndex;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Sets the index used for transparency with 1, 4 and 8 bpp images. Set to -1 to remove the effect.
+ */
+void CxImage::SetTransIndex(int32_t idx)
+{
+ if (idx<(int32_t)head.biClrUsed)
+ info.nBkgndIndex = idx;
+ else
+ info.nBkgndIndex = 0;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Sets the color used for transparency with 24 bpp images.
+ * You must call SetTransIndex(0) to enable the effect, SetTransIndex(-1) to disable it.
+ */
+void CxImage::SetTransColor(RGBQUAD rgb)
+{
+ rgb.rgbReserved=0;
+ info.nBkgndColor = rgb;
+}
+////////////////////////////////////////////////////////////////////////////////
+bool CxImage::IsTransparent() const
+{
+ return info.nBkgndIndex>=0; // <vho>
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Returns true if the image has 256 colors or less.
+ */
+bool CxImage::IsIndexed() const
+{
+ return head.biClrUsed!=0;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * \return 1 = indexed, 2 = RGB, 4 = RGBA
+ */
+uint8_t CxImage::GetColorType()
+{
+ uint8_t b = (uint8_t)((head.biBitCount>8) ? 2 /*COLORTYPE_COLOR*/ : 1 /*COLORTYPE_PALETTE*/);
+#if CXIMAGE_SUPPORT_ALPHA
+ if (AlphaIsValid()) b = 4 /*COLORTYPE_ALPHA*/;
+#endif //CXIMAGE_SUPPORT_ALPHA
+ return b;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * \return Resolution for TIFF, JPEG, PNG and BMP formats.
+ */
+int32_t CxImage::GetXDPI() const
+{
+ return info.xDPI;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * \return Resolution for TIFF, JPEG, PNG and BMP formats.
+ */
+int32_t CxImage::GetYDPI() const
+{
+ return info.yDPI;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Set resolution for TIFF, JPEG, PNG and BMP formats.
+ */
+void CxImage::SetXDPI(int32_t dpi)
+{
+ if (dpi<=0) dpi = CXIMAGE_DEFAULT_DPI;
+ info.xDPI = dpi;
+ head.biXPelsPerMeter = (int32_t) floor(dpi * 10000.0 / 254.0 + 0.5);
+ if (pDib) ((BITMAPINFOHEADER*)pDib)->biXPelsPerMeter = head.biXPelsPerMeter;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Set resolution for TIFF, JPEG, PNG and BMP formats.
+ */
+void CxImage::SetYDPI(int32_t dpi)
+{
+ if (dpi<=0) dpi = CXIMAGE_DEFAULT_DPI;
+ info.yDPI = dpi;
+ head.biYPelsPerMeter = (int32_t) floor(dpi * 10000.0 / 254.0 + 0.5);
+ if (pDib) ((BITMAPINFOHEADER*)pDib)->biYPelsPerMeter = head.biYPelsPerMeter;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * \sa SetFlags
+ */
+uint32_t CxImage::GetFlags() const
+{
+ return info.dwFlags;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Image flags, for future use
+ * \param flags
+ * - 0x??00000 = reserved for 16 bit, CMYK, multilayer
+ * - 0x00??0000 = blend modes
+ * - 0x0000???? = layer id or user flags
+ *
+ * \param bLockReservedFlags protects the "reserved" and "blend modes" flags
+ */
+void CxImage::SetFlags(uint32_t flags, bool bLockReservedFlags)
+{
+ if (bLockReservedFlags) info.dwFlags = flags & 0x0000ffff;
+ else info.dwFlags = flags;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * \sa SetCodecOption
+ */
+uint32_t CxImage::GetCodecOption(uint32_t imagetype)
+{
+ imagetype = GetTypeIndexFromId(imagetype);
+ if (imagetype==0){
+ imagetype = GetTypeIndexFromId(GetType());
+ }
+ return info.dwCodecOpt[imagetype];
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Encode option for GIF, TIF, JPG, PNG and RAW
+ * - GIF : 0 = LZW (default), 1 = none, 2 = RLE.
+ * - TIF : 0 = automatic (default), or a valid compression code as defined in "tiff.h" (COMPRESSION_NONE = 1, COMPRESSION_CCITTRLE = 2, ...)
+ * - JPG : valid values stored in enum CODEC_OPTION ( ENCODE_BASELINE = 0x01, ENCODE_PROGRESSIVE = 0x10, ...)
+ * - PNG : combination of interlace option and compression option
+ * interlace option : 1 = interlace, 0 = no interlace
+ * compression option : 2 = no compression, 4 = best speed, 6 = best compression, 8 = default compression
+ * default is no interlace and default compression
+ * example : 5 = 1+4 = interlace + best speed
+ * - RAW : valid values stored in enum CODEC_OPTION ( DECODE_QUALITY_LIN = 0x00, DECODE_QUALITY_VNG = 0x01, ...)
+ *
+ * \return true if everything is ok
+ */
+bool CxImage::SetCodecOption(uint32_t opt, uint32_t imagetype)
+{
+ imagetype = GetTypeIndexFromId(imagetype);
+ if (imagetype==0){
+ imagetype = GetTypeIndexFromId(GetType());
+ }
+ info.dwCodecOpt[imagetype] = opt;
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * \return internal hDib object..
+ */
+void* CxImage::GetDIB() const
+{
+ return pDib;
+}
+////////////////////////////////////////////////////////////////////////////////
+uint32_t CxImage::GetHeight() const
+{
+ return head.biHeight;
+}
+////////////////////////////////////////////////////////////////////////////////
+uint32_t CxImage::GetWidth() const
+{
+ return head.biWidth;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * \return uint32_t aligned width of the image.
+ */
+uint32_t CxImage::GetEffWidth() const
+{
+ return info.dwEffWidth;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * \return 2, 16, 256; 0 for RGB images.
+ */
+uint32_t CxImage::GetNumColors() const
+{
+ return head.biClrUsed;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * \return: 1, 4, 8, 24.
+ */
+uint16_t CxImage::GetBpp() const
+{
+ return head.biBitCount;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * \return original image format
+ * \sa ENUM_CXIMAGE_FORMATS.
+ */
+uint32_t CxImage::GetType() const
+{
+ return info.dwType;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * change image format identifier
+ * \sa ENUM_CXIMAGE_FORMATS.
+ */
+bool CxImage::SetType(uint32_t type)
+{
+ switch (type){
+#if CXIMAGE_SUPPORT_BMP
+ case CXIMAGE_FORMAT_BMP:
+#endif
+#if CXIMAGE_SUPPORT_GIF
+ case CXIMAGE_FORMAT_GIF:
+#endif
+#if CXIMAGE_SUPPORT_JPG
+ case CXIMAGE_FORMAT_JPG:
+#endif
+#if CXIMAGE_SUPPORT_PNG
+ case CXIMAGE_FORMAT_PNG:
+#endif
+#if CXIMAGE_SUPPORT_MNG
+ case CXIMAGE_FORMAT_MNG:
+#endif
+#if CXIMAGE_SUPPORT_ICO
+ case CXIMAGE_FORMAT_ICO:
+#endif
+#if CXIMAGE_SUPPORT_TIF
+ case CXIMAGE_FORMAT_TIF:
+#endif
+#if CXIMAGE_SUPPORT_TGA
+ case CXIMAGE_FORMAT_TGA:
+#endif
+#if CXIMAGE_SUPPORT_PCX
+ case CXIMAGE_FORMAT_PCX:
+#endif
+#if CXIMAGE_SUPPORT_WBMP
+ case CXIMAGE_FORMAT_WBMP:
+#endif
+#if CXIMAGE_SUPPORT_WMF
+ case CXIMAGE_FORMAT_WMF:
+#endif
+#if CXIMAGE_SUPPORT_JBG
+ case CXIMAGE_FORMAT_JBG:
+#endif
+#if CXIMAGE_SUPPORT_JP2
+ case CXIMAGE_FORMAT_JP2:
+#endif
+#if CXIMAGE_SUPPORT_JPC
+ case CXIMAGE_FORMAT_JPC:
+#endif
+#if CXIMAGE_SUPPORT_PGX
+ case CXIMAGE_FORMAT_PGX:
+#endif
+#if CXIMAGE_SUPPORT_PNM
+ case CXIMAGE_FORMAT_PNM:
+#endif
+#if CXIMAGE_SUPPORT_RAS
+ case CXIMAGE_FORMAT_RAS:
+#endif
+#if CXIMAGE_SUPPORT_SKA
+ case CXIMAGE_FORMAT_SKA:
+#endif
+#if CXIMAGE_SUPPORT_RAW
+ case CXIMAGE_FORMAT_RAW:
+#endif
+#if CXIMAGE_SUPPORT_PSD
+ case CXIMAGE_FORMAT_PSD:
+#endif
+ info.dwType = type;
+ return true;
+ case CXIMAGE_FORMAT_UNKNOWN:
+ default:
+ info.dwType = CXIMAGE_FORMAT_UNKNOWN;
+ }
+ return false;
+}
+////////////////////////////////////////////////////////////////////////////////
+uint32_t CxImage::GetNumTypes()
+{
+ return CMAX_IMAGE_FORMATS-1;
+}
+////////////////////////////////////////////////////////////////////////////////
+uint32_t CxImage::GetTypeIdFromName(const TCHAR* ext)
+{
+#if CXIMAGE_SUPPORT_BMP
+ if (_tcsnicmp(ext,_T("bmp"),3)==0 ) return CXIMAGE_FORMAT_BMP;
+#endif
+#if CXIMAGE_SUPPORT_JPG
+ if (_tcsnicmp(ext,_T("jpg"),3)==0 ||
+ _tcsnicmp(ext,_T("jpe"),3)==0 ||
+ _tcsnicmp(ext,_T("jfi"),3)==0 ) return CXIMAGE_FORMAT_JPG;
+#endif
+#if CXIMAGE_SUPPORT_GIF
+ if (_tcsnicmp(ext,_T("gif"),3)==0 ) return CXIMAGE_FORMAT_GIF;
+#endif
+#if CXIMAGE_SUPPORT_PNG
+ if (_tcsnicmp(ext,_T("png"),3)==0 ) return CXIMAGE_FORMAT_PNG;
+#endif
+#if CXIMAGE_SUPPORT_ICO
+ if (_tcsnicmp(ext,_T("ico"),3)==0 ||
+ _tcsnicmp(ext,_T("cur"),3)==0 ) return CXIMAGE_FORMAT_ICO;
+#endif
+#if CXIMAGE_SUPPORT_TIF
+ if (_tcsnicmp(ext,_T("tif"),3)==0 ) return CXIMAGE_FORMAT_TIF;
+#endif
+#if CXIMAGE_SUPPORT_TGA
+ if (_tcsnicmp(ext,_T("tga"),3)==0 ) return CXIMAGE_FORMAT_TGA;
+#endif
+#if CXIMAGE_SUPPORT_PCX
+ if (_tcsnicmp(ext,_T("pcx"),3)==0 ) return CXIMAGE_FORMAT_PCX;
+#endif
+#if CXIMAGE_SUPPORT_WBMP
+ if (_tcsnicmp(ext,_T("wbm"),3)==0 ) return CXIMAGE_FORMAT_WBMP;
+#endif
+#if CXIMAGE_SUPPORT_WMF
+ if (_tcsnicmp(ext,_T("wmf"),3)==0 ||
+ _tcsnicmp(ext,_T("emf"),3)==0 ) return CXIMAGE_FORMAT_WMF;
+#endif
+#if CXIMAGE_SUPPORT_JP2
+ if (_tcsnicmp(ext,_T("jp2"),3)==0 ||
+ _tcsnicmp(ext,_T("j2k"),3)==0 ) return CXIMAGE_FORMAT_JP2;
+#endif
+#if CXIMAGE_SUPPORT_JPC
+ if (_tcsnicmp(ext,_T("jpc"),3)==0 ||
+ _tcsnicmp(ext,_T("j2c"),3)==0 ) return CXIMAGE_FORMAT_JPC;
+#endif
+#if CXIMAGE_SUPPORT_PGX
+ if (_tcsnicmp(ext,_T("pgx"),3)==0 ) return CXIMAGE_FORMAT_PGX;
+#endif
+#if CXIMAGE_SUPPORT_RAS
+ if (_tcsnicmp(ext,_T("ras"),3)==0 ) return CXIMAGE_FORMAT_RAS;
+#endif
+#if CXIMAGE_SUPPORT_PNM
+ if (_tcsnicmp(ext,_T("pnm"),3)==0 ||
+ _tcsnicmp(ext,_T("pgm"),3)==0 ||
+ _tcsnicmp(ext,_T("ppm"),3)==0 ) return CXIMAGE_FORMAT_PNM;
+#endif
+#if CXIMAGE_SUPPORT_JBG
+ if (_tcsnicmp(ext,_T("jbg"),3)==0 ) return CXIMAGE_FORMAT_JBG;
+#endif
+#if CXIMAGE_SUPPORT_MNG
+ if (_tcsnicmp(ext,_T("mng"),3)==0 ||
+ _tcsnicmp(ext,_T("jng"),3)==0 ) return CXIMAGE_FORMAT_MNG;
+#endif
+#if CXIMAGE_SUPPORT_SKA
+ if (_tcsnicmp(ext,_T("ska"),3)==0 ) return CXIMAGE_FORMAT_SKA;
+#endif
+#if CXIMAGE_SUPPORT_PSD
+ if (_tcsnicmp(ext,_T("psd"),3)==0 ) return CXIMAGE_FORMAT_PSD;
+#endif
+#if CXIMAGE_SUPPORT_RAW
+ if (_tcsnicmp(ext,_T("nef"),3)==0 ||
+ _tcsnicmp(ext,_T("crw"),3)==0 ||
+ _tcsnicmp(ext,_T("cr2"),3)==0 ||
+ _tcsnicmp(ext,_T("dng"),3)==0 ||
+ _tcsnicmp(ext,_T("arw"),3)==0 ||
+ _tcsnicmp(ext,_T("erf"),3)==0 ||
+ _tcsnicmp(ext,_T("3fr"),3)==0 ||
+ _tcsnicmp(ext,_T("dcr"),3)==0 ||
+ _tcsnicmp(ext,_T("raw"),3)==0 ||
+ _tcsnicmp(ext,_T("x3f"),3)==0 ||
+ _tcsnicmp(ext,_T("mef"),3)==0 ||
+ _tcsnicmp(ext,_T("raf"),3)==0 ||
+ _tcsnicmp(ext,_T("mrw"),3)==0 ||
+ _tcsnicmp(ext,_T("pef"),3)==0 ||
+ _tcsnicmp(ext,_T("sr2"),3)==0 ||
+ _tcsnicmp(ext,_T("orf"),3)==0 ) return CXIMAGE_FORMAT_RAW;
+#endif
+
+ return CXIMAGE_FORMAT_UNKNOWN;
+}
+////////////////////////////////////////////////////////////////////////////////
+uint32_t CxImage::GetTypeIdFromIndex(const uint32_t index)
+{
+ uint32_t n;
+
+ n=0; if (index == n) return CXIMAGE_FORMAT_UNKNOWN;
+#if CXIMAGE_SUPPORT_BMP
+ n++; if (index == n) return CXIMAGE_FORMAT_BMP;
+#endif
+#if CXIMAGE_SUPPORT_GIF
+ n++; if (index == n) return CXIMAGE_FORMAT_GIF;
+#endif
+#if CXIMAGE_SUPPORT_JPG
+ n++; if (index == n) return CXIMAGE_FORMAT_JPG;
+#endif
+#if CXIMAGE_SUPPORT_PNG
+ n++; if (index == n) return CXIMAGE_FORMAT_PNG;
+#endif
+#if CXIMAGE_SUPPORT_ICO
+ n++; if (index == n) return CXIMAGE_FORMAT_ICO;
+#endif
+#if CXIMAGE_SUPPORT_TIF
+ n++; if (index == n) return CXIMAGE_FORMAT_TIF;
+#endif
+#if CXIMAGE_SUPPORT_TGA
+ n++; if (index == n) return CXIMAGE_FORMAT_TGA;
+#endif
+#if CXIMAGE_SUPPORT_PCX
+ n++; if (index == n) return CXIMAGE_FORMAT_PCX;
+#endif
+#if CXIMAGE_SUPPORT_WBMP
+ n++; if (index == n) return CXIMAGE_FORMAT_WBMP;
+#endif
+#if CXIMAGE_SUPPORT_WMF
+ n++; if (index == n) return CXIMAGE_FORMAT_WMF;
+#endif
+#if CXIMAGE_SUPPORT_JP2
+ n++; if (index == n) return CXIMAGE_FORMAT_JP2;
+#endif
+#if CXIMAGE_SUPPORT_JPC
+ n++; if (index == n) return CXIMAGE_FORMAT_JPC;
+#endif
+#if CXIMAGE_SUPPORT_PGX
+ n++; if (index == n) return CXIMAGE_FORMAT_PGX;
+#endif
+#if CXIMAGE_SUPPORT_PNM
+ n++; if (index == n) return CXIMAGE_FORMAT_PNM;
+#endif
+#if CXIMAGE_SUPPORT_RAS
+ n++; if (index == n) return CXIMAGE_FORMAT_RAS;
+#endif
+#if CXIMAGE_SUPPORT_JBG
+ n++; if (index == n) return CXIMAGE_FORMAT_JBG;
+#endif
+#if CXIMAGE_SUPPORT_MNG
+ n++; if (index == n) return CXIMAGE_FORMAT_MNG;
+#endif
+#if CXIMAGE_SUPPORT_SKA
+ n++; if (index == n) return CXIMAGE_FORMAT_SKA;
+#endif
+#if CXIMAGE_SUPPORT_RAW
+ n++; if (index == n) return CXIMAGE_FORMAT_RAW;
+#endif
+#if CXIMAGE_SUPPORT_PSD
+ n++; if (index == n) return CXIMAGE_FORMAT_PSD;
+#endif
+
+ return CXIMAGE_FORMAT_UNKNOWN;
+}
+////////////////////////////////////////////////////////////////////////////////
+uint32_t CxImage::GetTypeIndexFromId(const uint32_t id)
+{
+ uint32_t n;
+
+ n=0; if (id == CXIMAGE_FORMAT_UNKNOWN) return n;
+#if CXIMAGE_SUPPORT_BMP
+ n++; if (id == CXIMAGE_FORMAT_BMP) return n;
+#endif
+#if CXIMAGE_SUPPORT_GIF
+ n++; if (id == CXIMAGE_FORMAT_GIF) return n;
+#endif
+#if CXIMAGE_SUPPORT_JPG
+ n++; if (id == CXIMAGE_FORMAT_JPG) return n;
+#endif
+#if CXIMAGE_SUPPORT_PNG
+ n++; if (id == CXIMAGE_FORMAT_PNG) return n;
+#endif
+#if CXIMAGE_SUPPORT_ICO
+ n++; if (id == CXIMAGE_FORMAT_ICO) return n;
+#endif
+#if CXIMAGE_SUPPORT_TIF
+ n++; if (id == CXIMAGE_FORMAT_TIF) return n;
+#endif
+#if CXIMAGE_SUPPORT_TGA
+ n++; if (id == CXIMAGE_FORMAT_TGA) return n;
+#endif
+#if CXIMAGE_SUPPORT_PCX
+ n++; if (id == CXIMAGE_FORMAT_PCX) return n;
+#endif
+#if CXIMAGE_SUPPORT_WBMP
+ n++; if (id == CXIMAGE_FORMAT_WBMP) return n;
+#endif
+#if CXIMAGE_SUPPORT_WMF
+ n++; if (id == CXIMAGE_FORMAT_WMF) return n;
+#endif
+#if CXIMAGE_SUPPORT_JP2
+ n++; if (id == CXIMAGE_FORMAT_JP2) return n;
+#endif
+#if CXIMAGE_SUPPORT_JPC
+ n++; if (id == CXIMAGE_FORMAT_JPC) return n;
+#endif
+#if CXIMAGE_SUPPORT_PGX
+ n++; if (id == CXIMAGE_FORMAT_PGX) return n;
+#endif
+#if CXIMAGE_SUPPORT_PNM
+ n++; if (id == CXIMAGE_FORMAT_PNM) return n;
+#endif
+#if CXIMAGE_SUPPORT_RAS
+ n++; if (id == CXIMAGE_FORMAT_RAS) return n;
+#endif
+#if CXIMAGE_SUPPORT_JBG
+ n++; if (id == CXIMAGE_FORMAT_JBG) return n;
+#endif
+#if CXIMAGE_SUPPORT_MNG
+ n++; if (id == CXIMAGE_FORMAT_MNG) return n;
+#endif
+#if CXIMAGE_SUPPORT_SKA
+ n++; if (id == CXIMAGE_FORMAT_SKA) return n;
+#endif
+#if CXIMAGE_SUPPORT_RAW
+ n++; if (id == CXIMAGE_FORMAT_RAW) return n;
+#endif
+#if CXIMAGE_SUPPORT_PSD
+ n++; if (id == CXIMAGE_FORMAT_PSD) return n;
+#endif
+
+ return 0;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * \return current frame delay in milliseconds. Only for GIF and MNG formats.
+ */
+uint32_t CxImage::GetFrameDelay() const
+{
+ return info.dwFrameDelay;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Sets current frame delay. Only for GIF format.
+ * \param d = delay in milliseconds
+ */
+void CxImage::SetFrameDelay(uint32_t d)
+{
+ info.dwFrameDelay=d;
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImage::GetOffset(int32_t *x,int32_t *y)
+{
+ *x=info.xOffset;
+ *y=info.yOffset;
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImage::SetOffset(int32_t x,int32_t y)
+{
+ info.xOffset=x;
+ info.yOffset=y;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * \sa SetJpegQuality, GetJpegQualityF
+ * \author [DP]; changes [Stefan Schürmans]
+ */
+uint8_t CxImage::GetJpegQuality() const
+{
+ return (uint8_t)(info.fQuality + 0.5f);
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * \sa SetJpegQuality, GetJpegQuality
+ * \author [Stefan Schürmans]
+ */
+float CxImage::GetJpegQualityF() const
+{
+ return info.fQuality;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * quality level for JPEG and JPEG2000
+ * \param q: can be from 0 to 100
+ * \author [DP]; changes [Stefan Schürmans]
+ */
+void CxImage::SetJpegQuality(uint8_t q){
+ info.fQuality = (float)q;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * quality level for JPEG and JPEG2000
+ * necessary for JPEG2000 when quality is between 0.0 and 1.0
+ * \param q: can be from 0.0 to 100.0
+ * \author [Stefan Schürmans]
+ */
+void CxImage::SetJpegQualityF(float q){
+ if (q>0) info.fQuality = q;
+ else info.fQuality = 0.0f;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * \sa SetJpegScale
+ */
+uint8_t CxImage::GetJpegScale() const
+{
+ return info.nJpegScale;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * scaling down during JPEG decoding valid numbers are 1, 2, 4, 8
+ * \author [ignacio]
+ */
+void CxImage::SetJpegScale(uint8_t q){
+ info.nJpegScale = q;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Used to monitor the slow loops.
+ * \return value is from 0 to 100.
+ * \sa SetProgress
+ */
+int32_t CxImage::GetProgress() const
+{
+ return info.nProgress;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * \return the escape code.
+ * \sa SetEscape
+ */
+int32_t CxImage::GetEscape() const
+{
+ return info.nEscape;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Forces the value of the internal progress variable.
+ * \param p should be from 0 to 100.
+ * \sa GetProgress
+ */
+void CxImage::SetProgress(int32_t p)
+{
+ info.nProgress = p;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Used to quit the slow loops or the codecs.
+ * - SetEscape(-1) before Decode forces the function to exit, right after
+ * the image width and height are available ( for bmp, jpg, gif, tif )
+ */
+void CxImage::SetEscape(int32_t i)
+{
+ info.nEscape = i;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Checks if the image is correctly initializated.
+ */
+bool CxImage::IsValid() const
+{
+ return pDib!=0;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * True if the image is enabled for painting.
+ */
+bool CxImage::IsEnabled() const
+{
+ return info.bEnabled;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Enables/disables the image.
+ */
+void CxImage::Enable(bool enable)
+{
+ info.bEnabled=enable;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * This function must be used after a Decode() / Load() call.
+ * Use the sequence SetFrame(-1); Load(...); GetNumFrames();
+ * to get the number of images without loading the first image.
+ * \return the number of images in the file.
+ */
+int32_t CxImage::GetNumFrames() const
+{
+ return info.nNumFrames;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * \return the current selected image (zero-based index).
+ */
+int32_t CxImage::GetFrame() const
+{
+ return info.nFrame;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Sets the image number that the next Decode() / Load() call will load
+ */
+void CxImage::SetFrame(int32_t nFrame){
+ info.nFrame=nFrame;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Sets the method for drawing the frame related to others
+ * \sa GetDisposalMethod
+ */
+void CxImage::SetDisposalMethod(uint8_t dm)
+{ info.dispmeth=dm; }
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Gets the method for drawing the frame related to others
+ * Values : 0 - No disposal specified. The decoder is
+ * not required to take any action.
+ * 1 - Do not dispose. The graphic is to be left
+ * in place.
+ * 2 - Restore to background color. The area used by the
+ * graphic must be restored to the background color.
+ * 3 - Restore to previous. The decoder is required to
+ * restore the area overwritten by the graphic with
+ * what was there prior to rendering the graphic.
+ * 4-7 - To be defined.
+ */
+uint8_t CxImage::GetDisposalMethod() const
+{ return info.dispmeth; }
+////////////////////////////////////////////////////////////////////////////////
+bool CxImage::GetRetreiveAllFrames() const
+{ return info.bGetAllFrames; }
+////////////////////////////////////////////////////////////////////////////////
+void CxImage::SetRetreiveAllFrames(bool flag)
+{ info.bGetAllFrames = flag; }
+////////////////////////////////////////////////////////////////////////////////
+CxImage * CxImage::GetFrame(int32_t nFrame) const
+{
+ if ( ppFrames == NULL) return NULL;
+ if ( info.nNumFrames == 0) return NULL;
+ if ( nFrame >= info.nNumFrames ) return NULL;
+ if ( nFrame < 0) nFrame = info.nNumFrames - 1;
+ return ppFrames[nFrame];
+}
+////////////////////////////////////////////////////////////////////////////////
+int16_t CxImage::m_ntohs(const int16_t word)
+{
+ if (info.bLittleEndianHost) return word;
+ return ( (word & 0xff) << 8 ) | ( (word >> 8) & 0xff );
+}
+////////////////////////////////////////////////////////////////////////////////
+int32_t CxImage::m_ntohl(const int32_t dword)
+{
+ if (info.bLittleEndianHost) return dword;
+ return ((dword & 0xff) << 24 ) | ((dword & 0xff00) << 8 ) |
+ ((dword >> 8) & 0xff00) | ((dword >> 24) & 0xff);
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImage::bihtoh(BITMAPINFOHEADER* bih)
+{
+ bih->biSize = m_ntohl(bih->biSize);
+ bih->biWidth = m_ntohl(bih->biWidth);
+ bih->biHeight = m_ntohl(bih->biHeight);
+ bih->biPlanes = m_ntohs(bih->biPlanes);
+ bih->biBitCount = m_ntohs(bih->biBitCount);
+ bih->biCompression = m_ntohl(bih->biCompression);
+ bih->biSizeImage = m_ntohl(bih->biSizeImage);
+ bih->biXPelsPerMeter = m_ntohl(bih->biXPelsPerMeter);
+ bih->biYPelsPerMeter = m_ntohl(bih->biYPelsPerMeter);
+ bih->biClrUsed = m_ntohl(bih->biClrUsed);
+ bih->biClrImportant = m_ntohl(bih->biClrImportant);
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Returns the last reported error.
+ */
+const char* CxImage::GetLastError()
+{
+ return info.szLastError;
+}
+////////////////////////////////////////////////////////////////////////////////
+uint32_t CxImage::DumpSize()
+{
+ uint32_t n;
+ n = sizeof(BITMAPINFOHEADER) + sizeof(CXIMAGEINFO) + GetSize();
+
+#if CXIMAGE_SUPPORT_ALPHA
+ if (pAlpha){
+ n += 1 + head.biWidth * head.biHeight;
+ } else n++;
+#endif
+
+#if CXIMAGE_SUPPORT_SELECTION
+ if (pSelection){
+ n += 1 + head.biWidth * head.biHeight;
+ } else n++;
+#endif
+
+#if CXIMAGE_SUPPORT_LAYERS
+ if (ppLayers){
+ for (int32_t m=0; m<GetNumLayers(); m++){
+ if (GetLayer(m)){
+ n += 1 + GetLayer(m)->DumpSize();
+ }
+ }
+ } else n++;
+#endif
+
+ if (ppFrames){
+ for (int32_t m=0; m<GetNumFrames(); m++){
+ if (GetFrame(m)){
+ n += 1 + GetFrame(m)->DumpSize();
+ }
+ }
+ } else n++;
+
+ return n;
+}
+////////////////////////////////////////////////////////////////////////////////
+uint32_t CxImage::Dump(uint8_t * dst)
+{
+ if (!dst) return 0;
+
+ memcpy(dst,&head,sizeof(BITMAPINFOHEADER));
+ dst += sizeof(BITMAPINFOHEADER);
+
+ memcpy(dst,&info,sizeof(CXIMAGEINFO));
+ dst += sizeof(CXIMAGEINFO);
+
+ memcpy(dst,pDib,GetSize());
+ dst += GetSize();
+
+#if CXIMAGE_SUPPORT_ALPHA
+ if (pAlpha){
+ memset(dst++, 1, 1);
+ memcpy(dst,pAlpha,head.biWidth * head.biHeight);
+ dst += head.biWidth * head.biHeight;
+ } else {
+ memset(dst++, 0, 1);
+ }
+#endif
+
+#if CXIMAGE_SUPPORT_SELECTION
+ if (pSelection){
+ memset(dst++, 1, 1);
+ memcpy(dst,pSelection,head.biWidth * head.biHeight);
+ dst += head.biWidth * head.biHeight;
+ } else {
+ memset(dst++, 0, 1);
+ }
+#endif
+
+#if CXIMAGE_SUPPORT_LAYERS
+ if (ppLayers){
+ memset(dst++, 1, 1);
+ for (int32_t m=0; m<GetNumLayers(); m++){
+ if (GetLayer(m)){
+ dst += GetLayer(m)->Dump(dst);
+ }
+ }
+ } else {
+ memset(dst++, 0, 1);
+ }
+#endif
+
+ if (ppFrames){
+ memset(dst++, 1, 1);
+ for (int32_t m=0; m<GetNumFrames(); m++){
+ if (GetFrame(m)){
+ dst += GetFrame(m)->Dump(dst);
+ }
+ }
+ } else {
+ memset(dst++, 0, 1);
+ }
+
+ return DumpSize();
+}
+////////////////////////////////////////////////////////////////////////////////
+uint32_t CxImage::UnDump(const uint8_t * src)
+{
+ if (!src)
+ return 0;
+ if (!Destroy())
+ return 0;
+ if (!DestroyFrames())
+ return 0;
+
+ uint32_t n = 0;
+
+ memcpy(&head,src,sizeof(BITMAPINFOHEADER));
+ n += sizeof(BITMAPINFOHEADER);
+
+ memcpy(&info,&src[n],sizeof(CXIMAGEINFO));
+ n += sizeof(CXIMAGEINFO);
+
+ if (!Create(head.biWidth, head.biHeight, head.biBitCount, info.dwType))
+ return 0;
+
+ memcpy(pDib,&src[n],GetSize());
+ n += GetSize();
+
+#if CXIMAGE_SUPPORT_ALPHA
+ if (src[n++]){
+ if (AlphaCreate()){
+ memcpy(pAlpha, &src[n], head.biWidth * head.biHeight);
+ }
+ n += head.biWidth * head.biHeight;
+ }
+#endif
+
+#if CXIMAGE_SUPPORT_SELECTION
+ if (src[n++]){
+ RECT box = info.rSelectionBox;
+ if (SelectionCreate()){
+ info.rSelectionBox = box;
+ memcpy(pSelection, &src[n], head.biWidth * head.biHeight);
+ }
+ n += head.biWidth * head.biHeight;
+ }
+#endif
+
+#if CXIMAGE_SUPPORT_LAYERS
+ if (src[n++]){
+ ppLayers = new CxImage*[info.nNumLayers];
+ for (int32_t m=0; m<GetNumLayers(); m++){
+ ppLayers[m] = new CxImage();
+ n += ppLayers[m]->UnDump(&src[n]);
+ }
+ }
+#endif
+
+ if (src[n++]){
+ ppFrames = new CxImage*[info.nNumFrames];
+ for (int32_t m=0; m<GetNumFrames(); m++){
+ ppFrames[m] = new CxImage();
+ n += ppFrames[m]->UnDump(&src[n]);
+ }
+ }
+
+ return n;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * \return A.BBCCCDDDD
+ * - A = main version
+ * - BB = main revision
+ * - CCC = minor revision (letter)
+ * - DDDD = experimental revision
+ */
+const float CxImage::GetVersionNumber()
+{
+ return 7.000000000f;
+}
+////////////////////////////////////////////////////////////////////////////////
+const TCHAR* CxImage::GetVersion()
+{
+ static const TCHAR CxImageVersion[] = _T("CxImage 7.0.0");
+ return (CxImageVersion);
+}
+////////////////////////////////////////////////////////////////////////////////
diff --git a/smelt/sdl/CxImage/ximaint.cpp b/smelt/sdl/CxImage/ximaint.cpp new file mode 100644 index 0000000..5f93038 --- /dev/null +++ b/smelt/sdl/CxImage/ximaint.cpp @@ -0,0 +1,1046 @@ +// xImaInt.cpp : interpolation functions
+/* 02/2004 - Branko Brevensek
+ * CxImage version 7.0.0 31/Dec/2010 - Davide Pizzolato - www.xdp.it
+ */
+
+#include "ximage.h"
+#include "ximath.h"
+
+#if CXIMAGE_SUPPORT_INTERPOLATION
+
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Recalculates coordinates according to specified overflow method.
+ * If pixel (x,y) lies within image, nothing changes.
+ *
+ * \param x, y - coordinates of pixel
+ * \param ofMethod - overflow method
+ *
+ * \return x, y - new coordinates (pixel (x,y) now lies inside image)
+ *
+ * \author ***bd*** 2.2004
+ */
+void CxImage::OverflowCoordinates(int32_t &x, int32_t &y, OverflowMethod const ofMethod)
+{
+ if (IsInside(x,y)) return; //if pixel is within bounds, no change
+ switch (ofMethod) {
+ case OM_REPEAT:
+ //clip coordinates
+ x=max(x,0); x=min(x, head.biWidth-1);
+ y=max(y,0); y=min(y, head.biHeight-1);
+ break;
+ case OM_WRAP:
+ //wrap coordinates
+ x = x % head.biWidth;
+ y = y % head.biHeight;
+ if (x<0) x = head.biWidth + x;
+ if (y<0) y = head.biHeight + y;
+ break;
+ case OM_MIRROR:
+ //mirror pixels near border
+ if (x<0) x=((-x) % head.biWidth);
+ else if (x>=head.biWidth) x=head.biWidth-(x % head.biWidth + 1);
+ if (y<0) y=((-y) % head.biHeight);
+ else if (y>=head.biHeight) y=head.biHeight-(y % head.biHeight + 1);
+ break;
+ default:
+ return;
+ }//switch
+}
+
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * See OverflowCoordinates for integer version
+ * \author ***bd*** 2.2004
+ */
+void CxImage::OverflowCoordinates(float &x, float &y, OverflowMethod const ofMethod)
+{
+ if (x>=0 && x<head.biWidth && y>=0 && y<head.biHeight) return; //if pixel is within bounds, no change
+ switch (ofMethod) {
+ case OM_REPEAT:
+ //clip coordinates
+ x=max(x,0); x=min(x, head.biWidth-1);
+ y=max(y,0); y=min(y, head.biHeight-1);
+ break;
+ case OM_WRAP:
+ //wrap coordinates
+ x = (float)fmod(x, (float) head.biWidth);
+ y = (float)fmod(y, (float) head.biHeight);
+ if (x<0) x = head.biWidth + x;
+ if (y<0) y = head.biHeight + y;
+ break;
+ case OM_MIRROR:
+ //mirror pixels near border
+ if (x<0) x=(float)fmod(-x, (float) head.biWidth);
+ else if (x>=head.biWidth) x=head.biWidth-((float)fmod(x, (float) head.biWidth) + 1);
+ if (y<0) y=(float)fmod(-y, (float) head.biHeight);
+ else if (y>=head.biHeight) y=head.biHeight-((float)fmod(y, (float) head.biHeight) + 1);
+ break;
+ default:
+ return;
+ }//switch
+}
+
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Method return pixel color. Different methods are implemented for out of bounds pixels.
+ * If an image has alpha channel, alpha value is returned in .RGBReserved.
+ *
+ * \param x,y : pixel coordinates
+ * \param ofMethod : out-of-bounds method:
+ * - OF_WRAP - wrap over to pixels on other side of the image
+ * - OF_REPEAT - repeat last pixel on the edge
+ * - OF_COLOR - return input value of color
+ * - OF_BACKGROUND - return background color (if not set, return input color)
+ * - OF_TRANSPARENT - return transparent pixel
+ *
+ * \param rplColor : input color (returned for out-of-bound coordinates in OF_COLOR mode and if other mode is not applicable)
+ *
+ * \return color : color of pixel
+ * \author ***bd*** 2.2004
+ */
+RGBQUAD CxImage::GetPixelColorWithOverflow(int32_t x, int32_t y, OverflowMethod const ofMethod, RGBQUAD* const rplColor)
+{
+ RGBQUAD color; //color to return
+ if ((!IsInside(x,y)) || pDib==NULL) { //is pixel within bouns?:
+ //pixel is out of bounds or no DIB
+ if (rplColor!=NULL)
+ color=*rplColor;
+ else {
+ color.rgbRed=color.rgbGreen=color.rgbBlue=255; color.rgbReserved=0; //default replacement colour: white transparent
+ }//if
+ if (pDib==NULL) return color;
+ //pixel is out of bounds:
+ switch (ofMethod) {
+ case OM_TRANSPARENT:
+#if CXIMAGE_SUPPORT_ALPHA
+ if (AlphaIsValid()) {
+ //alpha transparency is supported and image has alpha layer
+ color.rgbReserved=0;
+ } else {
+#endif //CXIMAGE_SUPPORT_ALPHA
+ //no alpha transparency
+ if (GetTransIndex()>=0) {
+ color=GetTransColor(); //single color transparency enabled (return transparent color)
+ }//if
+#if CXIMAGE_SUPPORT_ALPHA
+ }//if
+#endif //CXIMAGE_SUPPORT_ALPHA
+ return color;
+ case OM_BACKGROUND:
+ //return background color (if it exists, otherwise input value)
+ if (info.nBkgndIndex >= 0) {
+ if (head.biBitCount<24) color = GetPaletteColor((uint8_t)info.nBkgndIndex);
+ else color = info.nBkgndColor;
+ }//if
+ return color;
+ case OM_REPEAT:
+ case OM_WRAP:
+ case OM_MIRROR:
+ OverflowCoordinates(x,y,ofMethod);
+ break;
+ default:
+ //simply return replacement color (OM_COLOR and others)
+ return color;
+ }//switch
+ }//if
+ //just return specified pixel (it's within bounds)
+ return BlindGetPixelColor(x,y);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * This method reconstructs image according to chosen interpolation method and then returns pixel (x,y).
+ * (x,y) can lie between actual image pixels. If (x,y) lies outside of image, method returns value
+ * according to overflow method.
+ * This method is very useful for geometrical image transformations, where destination pixel
+ * can often assume color value lying between source pixels.
+ *
+ * \param (x,y) - coordinates of pixel to return
+ * GPCI method recreates "analogue" image back from digital data, so x and y
+ * are float values and color value of point (1.1,1) will generally not be same
+ * as (1,1). Center of first pixel is at (0,0) and center of pixel right to it is (1,0).
+ * (0.5,0) is half way between these two pixels.
+ * \param inMethod - interpolation (reconstruction) method (kernel) to use:
+ * - IM_NEAREST_NEIGHBOUR - returns colour of nearest lying pixel (causes stairy look of
+ * processed images)
+ * - IM_BILINEAR - interpolates colour from four neighbouring pixels (softens image a bit)
+ * - IM_BICUBIC - interpolates from 16 neighbouring pixels (can produce "halo" artifacts)
+ * - IM_BICUBIC2 - interpolates from 16 neighbouring pixels (perhaps a bit less halo artifacts
+ than IM_BICUBIC)
+ * - IM_BSPLINE - interpolates from 16 neighbouring pixels (softens image, washes colours)
+ * (As far as I know, image should be prefiltered for this method to give
+ * good results... some other time :) )
+ * This method uses bicubic interpolation kernel from CXImage 5.99a and older
+ * versions.
+ * - IM_LANCZOS - interpolates from 12*12 pixels (slow, ringing artifacts)
+ *
+ * \param ofMethod - overflow method (see comments at GetPixelColorWithOverflow)
+ * \param rplColor - pointer to color used for out of borders pixels in OM_COLOR mode
+ * (and other modes if colour can't calculated in a specified way)
+ *
+ * \return interpolated color value (including interpolated alpha value, if image has alpha layer)
+ *
+ * \author ***bd*** 2.2004
+ */
+RGBQUAD CxImage::GetPixelColorInterpolated(
+ float x,float y,
+ InterpolationMethod const inMethod,
+ OverflowMethod const ofMethod,
+ RGBQUAD* const rplColor)
+{
+ //calculate nearest pixel
+ int32_t xi=(int32_t)(x); if (x<0) xi--; //these replace (incredibly slow) floor (Visual c++ 2003, AMD Athlon)
+ int32_t yi=(int32_t)(y); if (y<0) yi--;
+ RGBQUAD color; //calculated colour
+
+ switch (inMethod) {
+ case IM_NEAREST_NEIGHBOUR:
+ return GetPixelColorWithOverflow((int32_t)(x+0.5f), (int32_t)(y+0.5f), ofMethod, rplColor);
+ default: {
+ //IM_BILINEAR: bilinear interpolation
+ if (xi<-1 || xi>=head.biWidth || yi<-1 || yi>=head.biHeight) { //all 4 points are outside bounds?:
+ switch (ofMethod) {
+ case OM_COLOR: case OM_TRANSPARENT: case OM_BACKGROUND:
+ //we don't need to interpolate anything with all points outside in this case
+ return GetPixelColorWithOverflow(-999, -999, ofMethod, rplColor);
+ default:
+ //recalculate coordinates and use faster method later on
+ OverflowCoordinates(x,y,ofMethod);
+ xi=(int32_t)(x); if (x<0) xi--; //x and/or y have changed ... recalculate xi and yi
+ yi=(int32_t)(y); if (y<0) yi--;
+ }//switch
+ }//if
+ //get four neighbouring pixels
+ if ((xi+1)<head.biWidth && xi>=0 && (yi+1)<head.biHeight && yi>=0 && head.biClrUsed==0) {
+ //all pixels are inside RGB24 image... optimize reading (and use fixed point arithmetic)
+ uint16_t wt1=(uint16_t)((x-xi)*256.0f), wt2=(uint16_t)((y-yi)*256.0f);
+ uint16_t wd=wt1*wt2>>8;
+ uint16_t wb=wt1-wd;
+ uint16_t wc=wt2-wd;
+ uint16_t wa=256-wt1-wc;
+ uint16_t wrr,wgg,wbb;
+ uint8_t *pxptr=(uint8_t*)info.pImage+yi*info.dwEffWidth+xi*3;
+ wbb=wa*(*pxptr++); wgg=wa*(*pxptr++); wrr=wa*(*pxptr++);
+ wbb+=wb*(*pxptr++); wgg+=wb*(*pxptr++); wrr+=wb*(*pxptr);
+ pxptr+=(info.dwEffWidth-5); //move to next row
+ wbb+=wc*(*pxptr++); wgg+=wc*(*pxptr++); wrr+=wc*(*pxptr++);
+ wbb+=wd*(*pxptr++); wgg+=wd*(*pxptr++); wrr+=wd*(*pxptr);
+ color.rgbRed=(uint8_t) (wrr>>8); color.rgbGreen=(uint8_t) (wgg>>8); color.rgbBlue=(uint8_t) (wbb>>8);
+#if CXIMAGE_SUPPORT_ALPHA
+ if (pAlpha) {
+ uint16_t waa;
+ //image has alpha layer... we have to do the same for alpha data
+ pxptr=AlphaGetPointer(xi,yi); //pointer to first byte
+ waa=wa*(*pxptr++); waa+=wb*(*pxptr); //first two pixels
+ pxptr+=(head.biWidth-1); //move to next row
+ waa+=wc*(*pxptr++); waa+=wd*(*pxptr); //and second row pixels
+ color.rgbReserved=(uint8_t) (waa>>8);
+ } else
+#endif
+ { //Alpha not supported or no alpha at all
+ color.rgbReserved = 0;
+ }
+ return color;
+ } else {
+ //default (slower) way to get pixels (not RGB24 or some pixels out of borders)
+ float t1=x-xi, t2=y-yi;
+ float d=t1*t2;
+ float b=t1-d;
+ float c=t2-d;
+ float a=1-t1-c;
+ RGBQUAD rgb11,rgb21,rgb12,rgb22;
+ rgb11=GetPixelColorWithOverflow(xi, yi, ofMethod, rplColor);
+ rgb21=GetPixelColorWithOverflow(xi+1, yi, ofMethod, rplColor);
+ rgb12=GetPixelColorWithOverflow(xi, yi+1, ofMethod, rplColor);
+ rgb22=GetPixelColorWithOverflow(xi+1, yi+1, ofMethod, rplColor);
+ //calculate linear interpolation
+ color.rgbRed=(uint8_t) (a*rgb11.rgbRed+b*rgb21.rgbRed+c*rgb12.rgbRed+d*rgb22.rgbRed);
+ color.rgbGreen=(uint8_t) (a*rgb11.rgbGreen+b*rgb21.rgbGreen+c*rgb12.rgbGreen+d*rgb22.rgbGreen);
+ color.rgbBlue=(uint8_t) (a*rgb11.rgbBlue+b*rgb21.rgbBlue+c*rgb12.rgbBlue+d*rgb22.rgbBlue);
+#if CXIMAGE_SUPPORT_ALPHA
+ color.rgbReserved=(uint8_t) (a*rgb11.rgbReserved+b*rgb21.rgbReserved+c*rgb12.rgbReserved+d*rgb22.rgbReserved);
+#else
+ color.rgbReserved = 0;
+#endif
+ return color;
+ }//if
+ }//default
+ case IM_BICUBIC:
+ case IM_BICUBIC2:
+ case IM_BSPLINE:
+ case IM_BOX:
+ case IM_HERMITE:
+ case IM_HAMMING:
+ case IM_SINC:
+ case IM_BLACKMAN:
+ case IM_BESSEL:
+ case IM_GAUSSIAN:
+ case IM_QUADRATIC:
+ case IM_MITCHELL:
+ case IM_CATROM:
+ case IM_HANNING:
+ case IM_POWER:
+ //bicubic interpolation(s)
+ if (((xi+2)<0) || ((xi-1)>=head.biWidth) || ((yi+2)<0) || ((yi-1)>=head.biHeight)) { //all points are outside bounds?:
+ switch (ofMethod) {
+ case OM_COLOR: case OM_TRANSPARENT: case OM_BACKGROUND:
+ //we don't need to interpolate anything with all points outside in this case
+ return GetPixelColorWithOverflow(-999, -999, ofMethod, rplColor);
+ break;
+ default:
+ //recalculate coordinates and use faster method later on
+ OverflowCoordinates(x,y,ofMethod);
+ xi=(int32_t)(x); if (x<0) xi--; //x and/or y have changed ... recalculate xi and yi
+ yi=(int32_t)(y); if (y<0) yi--;
+ }//switch
+ }//if
+
+ //some variables needed from here on
+ int32_t xii,yii; //x any y integer indexes for loops
+ float kernel, kernelyc; //kernel cache
+ float kernelx[12], kernely[4]; //precalculated kernel values
+ float rr,gg,bb,aa; //accumulated color values
+ //calculate multiplication factors for all pixels
+ int32_t i;
+ switch (inMethod) {
+ case IM_BICUBIC:
+ for (i=0; i<4; i++) {
+ kernelx[i]=KernelCubic((float)(xi+i-1-x));
+ kernely[i]=KernelCubic((float)(yi+i-1-y));
+ }//for i
+ break;
+ case IM_BICUBIC2:
+ for (i=0; i<4; i++) {
+ kernelx[i]=KernelGeneralizedCubic((float)(xi+i-1-x), -0.5);
+ kernely[i]=KernelGeneralizedCubic((float)(yi+i-1-y), -0.5);
+ }//for i
+ break;
+ case IM_BSPLINE:
+ for (i=0; i<4; i++) {
+ kernelx[i]=KernelBSpline((float)(xi+i-1-x));
+ kernely[i]=KernelBSpline((float)(yi+i-1-y));
+ }//for i
+ break;
+ case IM_BOX:
+ for (i=0; i<4; i++) {
+ kernelx[i]=KernelBox((float)(xi+i-1-x));
+ kernely[i]=KernelBox((float)(yi+i-1-y));
+ }//for i
+ break;
+ case IM_HERMITE:
+ for (i=0; i<4; i++) {
+ kernelx[i]=KernelHermite((float)(xi+i-1-x));
+ kernely[i]=KernelHermite((float)(yi+i-1-y));
+ }//for i
+ break;
+ case IM_HAMMING:
+ for (i=0; i<4; i++) {
+ kernelx[i]=KernelHamming((float)(xi+i-1-x));
+ kernely[i]=KernelHamming((float)(yi+i-1-y));
+ }//for i
+ break;
+ case IM_SINC:
+ for (i=0; i<4; i++) {
+ kernelx[i]=KernelSinc((float)(xi+i-1-x));
+ kernely[i]=KernelSinc((float)(yi+i-1-y));
+ }//for i
+ break;
+ case IM_BLACKMAN:
+ for (i=0; i<4; i++) {
+ kernelx[i]=KernelBlackman((float)(xi+i-1-x));
+ kernely[i]=KernelBlackman((float)(yi+i-1-y));
+ }//for i
+ break;
+ case IM_BESSEL:
+ for (i=0; i<4; i++) {
+ kernelx[i]=KernelBessel((float)(xi+i-1-x));
+ kernely[i]=KernelBessel((float)(yi+i-1-y));
+ }//for i
+ break;
+ case IM_GAUSSIAN:
+ for (i=0; i<4; i++) {
+ kernelx[i]=KernelGaussian((float)(xi+i-1-x));
+ kernely[i]=KernelGaussian((float)(yi+i-1-y));
+ }//for i
+ break;
+ case IM_QUADRATIC:
+ for (i=0; i<4; i++) {
+ kernelx[i]=KernelQuadratic((float)(xi+i-1-x));
+ kernely[i]=KernelQuadratic((float)(yi+i-1-y));
+ }//for i
+ break;
+ case IM_MITCHELL:
+ for (i=0; i<4; i++) {
+ kernelx[i]=KernelMitchell((float)(xi+i-1-x));
+ kernely[i]=KernelMitchell((float)(yi+i-1-y));
+ }//for i
+ break;
+ case IM_CATROM:
+ for (i=0; i<4; i++) {
+ kernelx[i]=KernelCatrom((float)(xi+i-1-x));
+ kernely[i]=KernelCatrom((float)(yi+i-1-y));
+ }//for i
+ break;
+ case IM_HANNING:
+ for (i=0; i<4; i++) {
+ kernelx[i]=KernelHanning((float)(xi+i-1-x));
+ kernely[i]=KernelHanning((float)(yi+i-1-y));
+ }//for i
+ break;
+ case IM_POWER:
+ for (i=0; i<4; i++) {
+ kernelx[i]=KernelPower((float)(xi+i-1-x));
+ kernely[i]=KernelPower((float)(yi+i-1-y));
+ }//for i
+ break; + default:break;
+ }//switch
+ rr=gg=bb=aa=0;
+ if (((xi+2)<head.biWidth) && xi>=1 && ((yi+2)<head.biHeight) && (yi>=1) && !IsIndexed()) {
+ //optimized interpolation (faster pixel reads) for RGB24 images with all pixels inside bounds
+ for (yii=yi-1; yii<yi+3; yii++) {
+ uint8_t *pxptr=(uint8_t *)BlindGetPixelPointer(xi-1, yii); //calculate pointer to first byte in row
+ kernelyc=kernely[yii-(yi-1)];
+#if CXIMAGE_SUPPORT_ALPHA
+ if (AlphaIsValid()) {
+ //alpha is supported and valid (optimized bicubic int32_t. for image with alpha)
+ uint8_t *pxptra=AlphaGetPointer(xi-1, yii);
+ kernel=kernelyc*kernelx[0];
+ bb+=kernel*(*pxptr++); gg+=kernel*(*pxptr++); rr+=kernel*(*pxptr++); aa+=kernel*(*pxptra++);
+ kernel=kernelyc*kernelx[1];
+ bb+=kernel*(*pxptr++); gg+=kernel*(*pxptr++); rr+=kernel*(*pxptr++); aa+=kernel*(*pxptra++);
+ kernel=kernelyc*kernelx[2];
+ bb+=kernel*(*pxptr++); gg+=kernel*(*pxptr++); rr+=kernel*(*pxptr++); aa+=kernel*(*pxptra++);
+ kernel=kernelyc*kernelx[3];
+ bb+=kernel*(*pxptr++); gg+=kernel*(*pxptr++); rr+=kernel*(*pxptr); aa+=kernel*(*pxptra);
+ } else
+#endif
+ //alpha not supported or valid (optimized bicubic int32_t. for no alpha channel)
+ {
+ kernel=kernelyc*kernelx[0];
+ bb+=kernel*(*pxptr++); gg+=kernel*(*pxptr++); rr+=kernel*(*pxptr++);
+ kernel=kernelyc*kernelx[1];
+ bb+=kernel*(*pxptr++); gg+=kernel*(*pxptr++); rr+=kernel*(*pxptr++);
+ kernel=kernelyc*kernelx[2];
+ bb+=kernel*(*pxptr++); gg+=kernel*(*pxptr++); rr+=kernel*(*pxptr++);
+ kernel=kernelyc*kernelx[3];
+ bb+=kernel*(*pxptr++); gg+=kernel*(*pxptr++); rr+=kernel*(*pxptr);
+ }
+ }//yii
+ } else {
+ //slower more flexible interpolation for border pixels and paletted images
+ RGBQUAD rgbs;
+ for (yii=yi-1; yii<yi+3; yii++) {
+ kernelyc=kernely[yii-(yi-1)];
+ for (xii=xi-1; xii<xi+3; xii++) {
+ kernel=kernelyc*kernelx[xii-(xi-1)];
+ rgbs=GetPixelColorWithOverflow(xii, yii, ofMethod, rplColor);
+ rr+=kernel*rgbs.rgbRed;
+ gg+=kernel*rgbs.rgbGreen;
+ bb+=kernel*rgbs.rgbBlue;
+#if CXIMAGE_SUPPORT_ALPHA
+ aa+=kernel*rgbs.rgbReserved;
+#endif
+ }//xii
+ }//yii
+ }//if
+ //for all colors, clip to 0..255 and assign to RGBQUAD
+ if (rr>255) rr=255; if (rr<0) rr=0; color.rgbRed=(uint8_t) rr;
+ if (gg>255) gg=255; if (gg<0) gg=0; color.rgbGreen=(uint8_t) gg;
+ if (bb>255) bb=255; if (bb<0) bb=0; color.rgbBlue=(uint8_t) bb;
+#if CXIMAGE_SUPPORT_ALPHA
+ if (aa>255) aa=255; if (aa<0) aa=0; color.rgbReserved=(uint8_t) aa;
+#else
+ color.rgbReserved = 0;
+#endif
+ return color;
+ case IM_LANCZOS:
+ //lanczos window (16*16) sinc interpolation
+ if (((xi+6)<0) || ((xi-5)>=head.biWidth) || ((yi+6)<0) || ((yi-5)>=head.biHeight)) {
+ //all points are outside bounds
+ switch (ofMethod) {
+ case OM_COLOR: case OM_TRANSPARENT: case OM_BACKGROUND:
+ //we don't need to interpolate anything with all points outside in this case
+ return GetPixelColorWithOverflow(-999, -999, ofMethod, rplColor);
+ break;
+ default:
+ //recalculate coordinates and use faster method later on
+ OverflowCoordinates(x,y,ofMethod);
+ xi=(int32_t)(x); if (x<0) xi--; //x and/or y have changed ... recalculate xi and yi
+ yi=(int32_t)(y); if (y<0) yi--;
+ }//switch
+ }//if
+
+ for (xii=xi-5; xii<xi+7; xii++) kernelx[xii-(xi-5)]=KernelLanczosSinc((float)(xii-x), 6.0f);
+ rr=gg=bb=aa=0;
+
+ if (((xi+6)<head.biWidth) && ((xi-5)>=0) && ((yi+6)<head.biHeight) && ((yi-5)>=0) && !IsIndexed()) {
+ //optimized interpolation (faster pixel reads) for RGB24 images with all pixels inside bounds
+ for (yii=yi-5; yii<yi+7; yii++) {
+ uint8_t *pxptr=(uint8_t *)BlindGetPixelPointer(xi-5, yii); //calculate pointer to first byte in row
+ kernelyc=KernelLanczosSinc((float)(yii-y),6.0f);
+#if CXIMAGE_SUPPORT_ALPHA
+ if (AlphaIsValid()) {
+ //alpha is supported and valid
+ uint8_t *pxptra=AlphaGetPointer(xi-1, yii);
+ for (xii=0; xii<12; xii++) {
+ kernel=kernelyc*kernelx[xii];
+ bb+=kernel*(*pxptr++); gg+=kernel*(*pxptr++); rr+=kernel*(*pxptr++); aa+=kernel*(*pxptra++);
+ }//for xii
+ } else
+#endif
+ //alpha not supported or valid
+ {
+ for (xii=0; xii<12; xii++) {
+ kernel=kernelyc*kernelx[xii];
+ bb+=kernel*(*pxptr++); gg+=kernel*(*pxptr++); rr+=kernel*(*pxptr++);
+ }//for xii
+ }
+ }//yii
+ } else {
+ //slower more flexible interpolation for border pixels and paletted images
+ RGBQUAD rgbs;
+ for (yii=yi-5; yii<yi+7; yii++) {
+ kernelyc=KernelLanczosSinc((float)(yii-y),6.0f);
+ for (xii=xi-5; xii<xi+7; xii++) {
+ kernel=kernelyc*kernelx[xii-(xi-5)];
+ rgbs=GetPixelColorWithOverflow(xii, yii, ofMethod, rplColor);
+ rr+=kernel*rgbs.rgbRed;
+ gg+=kernel*rgbs.rgbGreen;
+ bb+=kernel*rgbs.rgbBlue;
+#if CXIMAGE_SUPPORT_ALPHA
+ aa+=kernel*rgbs.rgbReserved;
+#endif
+ }//xii
+ }//yii
+ }//if
+ //for all colors, clip to 0..255 and assign to RGBQUAD
+ if (rr>255) rr=255; if (rr<0) rr=0; color.rgbRed=(uint8_t) rr;
+ if (gg>255) gg=255; if (gg<0) gg=0; color.rgbGreen=(uint8_t) gg;
+ if (bb>255) bb=255; if (bb<0) bb=0; color.rgbBlue=(uint8_t) bb;
+#if CXIMAGE_SUPPORT_ALPHA
+ if (aa>255) aa=255; if (aa<0) aa=0; color.rgbReserved=(uint8_t) aa;
+#else
+ color.rgbReserved = 0;
+#endif
+ return color;
+ }//switch
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Helper function for GetAreaColorInterpolated.
+ * Adds 'surf' portion of image pixel with color 'color' to (rr,gg,bb,aa).
+ */
+void CxImage::AddAveragingCont(RGBQUAD const &color, float const surf, float &rr, float &gg, float &bb, float &aa)
+{
+ rr+=color.rgbRed*surf;
+ gg+=color.rgbGreen*surf;
+ bb+=color.rgbBlue*surf;
+#if CXIMAGE_SUPPORT_ALPHA
+ aa+=color.rgbReserved*surf;
+#endif
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * This method is similar to GetPixelColorInterpolated, but this method also properly handles
+ * subsampling.
+ * If you need to sample original image with interval of more than 1 pixel (as when shrinking an image),
+ * you should use this method instead of GetPixelColorInterpolated or aliasing will occur.
+ * When area width and height are both less than pixel, this method gets pixel color by interpolating
+ * color of frame center with selected (inMethod) interpolation by calling GetPixelColorInterpolated.
+ * If width and height are more than 1, method calculates color by averaging color of pixels within area.
+ * Interpolation method is not used in this case. Pixel color is interpolated by averaging instead.
+ * If only one of both is more than 1, method uses combination of interpolation and averaging.
+ * Chosen interpolation method is used, but since it is averaged later on, there is little difference
+ * between IM_BILINEAR (perhaps best for this case) and better methods. IM_NEAREST_NEIGHBOUR again
+ * leads to aliasing artifacts.
+ * This method is a bit slower than GetPixelColorInterpolated and when aliasing is not a problem, you should
+ * simply use the later.
+ *
+ * \param xc, yc - center of (rectangular) area
+ * \param w, h - width and height of area
+ * \param inMethod - interpolation method that is used, when interpolation is used (see above)
+ * \param ofMethod - overflow method used when retrieving individual pixel colors
+ * \param rplColor - replacement colour to use, in OM_COLOR
+ *
+ * \author ***bd*** 2.2004
+ */
+RGBQUAD CxImage::GetAreaColorInterpolated(
+ float const xc, float const yc, float const w, float const h,
+ InterpolationMethod const inMethod,
+ OverflowMethod const ofMethod,
+ RGBQUAD* const rplColor)
+{
+ RGBQUAD color; //calculated colour
+
+ if (h<=1 && w<=1) {
+ //both width and height are less than one... we will use interpolation of center point
+ return GetPixelColorInterpolated(xc, yc, inMethod, ofMethod, rplColor);
+ } else {
+ //area is wider and/or taller than one pixel:
+ CxRect2 area(xc-w/2.0f, yc-h/2.0f, xc+w/2.0f, yc+h/2.0f); //area
+ int32_t xi1=(int32_t)(area.botLeft.x+0.49999999f); //low x
+ int32_t yi1=(int32_t)(area.botLeft.y+0.49999999f); //low y
+
+
+ int32_t xi2=(int32_t)(area.topRight.x+0.5f); //top x
+ int32_t yi2=(int32_t)(area.topRight.y+0.5f); //top y (for loops)
+
+ float rr,gg,bb,aa; //red, green, blue and alpha components
+ rr=gg=bb=aa=0;
+ int32_t x,y; //loop counters
+ float s=0; //surface of all pixels
+ float cps; //surface of current crosssection
+ if (h>1 && w>1) {
+ //width and height of area are greater than one pixel, so we can employ "ordinary" averaging
+ CxRect2 intBL, intTR; //bottom left and top right intersection
+ intBL=area.CrossSection(CxRect2(((float)xi1)-0.5f, ((float)yi1)-0.5f, ((float)xi1)+0.5f, ((float)yi1)+0.5f));
+ intTR=area.CrossSection(CxRect2(((float)xi2)-0.5f, ((float)yi2)-0.5f, ((float)xi2)+0.5f, ((float)yi2)+0.5f));
+ float wBL, wTR, hBL, hTR;
+ wBL=intBL.Width(); //width of bottom left pixel-area intersection
+ hBL=intBL.Height(); //height of bottom left...
+ wTR=intTR.Width(); //width of top right...
+ hTR=intTR.Height(); //height of top right...
+
+ AddAveragingCont(GetPixelColorWithOverflow(xi1,yi1,ofMethod,rplColor), wBL*hBL, rr, gg, bb, aa); //bottom left pixel
+ AddAveragingCont(GetPixelColorWithOverflow(xi2,yi1,ofMethod,rplColor), wTR*hBL, rr, gg, bb, aa); //bottom right pixel
+ AddAveragingCont(GetPixelColorWithOverflow(xi1,yi2,ofMethod,rplColor), wBL*hTR, rr, gg, bb, aa); //top left pixel
+ AddAveragingCont(GetPixelColorWithOverflow(xi2,yi2,ofMethod,rplColor), wTR*hTR, rr, gg, bb, aa); //top right pixel
+ //bottom and top row
+ for (x=xi1+1; x<xi2; x++) {
+ AddAveragingCont(GetPixelColorWithOverflow(x,yi1,ofMethod,rplColor), hBL, rr, gg, bb, aa); //bottom row
+ AddAveragingCont(GetPixelColorWithOverflow(x,yi2,ofMethod,rplColor), hTR, rr, gg, bb, aa); //top row
+ }
+ //leftmost and rightmost column
+ for (y=yi1+1; y<yi2; y++) {
+ AddAveragingCont(GetPixelColorWithOverflow(xi1,y,ofMethod,rplColor), wBL, rr, gg, bb, aa); //left column
+ AddAveragingCont(GetPixelColorWithOverflow(xi2,y,ofMethod,rplColor), wTR, rr, gg, bb, aa); //right column
+ }
+ for (y=yi1+1; y<yi2; y++) {
+ for (x=xi1+1; x<xi2; x++) {
+ color=GetPixelColorWithOverflow(x,y,ofMethod,rplColor);
+ rr+=color.rgbRed;
+ gg+=color.rgbGreen;
+ bb+=color.rgbBlue;
+#if CXIMAGE_SUPPORT_ALPHA
+ aa+=color.rgbReserved;
+#endif
+ }//for x
+ }//for y
+ } else {
+ //width or height greater than one:
+ CxRect2 intersect; //intersection with current pixel
+ CxPoint2 center;
+ for (y=yi1; y<=yi2; y++) {
+ for (x=xi1; x<=xi2; x++) {
+ intersect=area.CrossSection(CxRect2(((float)x)-0.5f, ((float)y)-0.5f, ((float)x)+0.5f, ((float)y)+0.5f));
+ center=intersect.Center();
+ color=GetPixelColorInterpolated(center.x, center.y, inMethod, ofMethod, rplColor);
+ cps=intersect.Surface();
+ rr+=color.rgbRed*cps;
+ gg+=color.rgbGreen*cps;
+ bb+=color.rgbBlue*cps;
+#if CXIMAGE_SUPPORT_ALPHA
+ aa+=color.rgbReserved*cps;
+#endif
+ }//for x
+ }//for y
+ }//if
+
+ s=area.Surface();
+ rr/=s; gg/=s; bb/=s; aa/=s;
+ if (rr>255) rr=255; if (rr<0) rr=0; color.rgbRed=(uint8_t) rr;
+ if (gg>255) gg=255; if (gg<0) gg=0; color.rgbGreen=(uint8_t) gg;
+ if (bb>255) bb=255; if (bb<0) bb=0; color.rgbBlue=(uint8_t) bb;
+#if CXIMAGE_SUPPORT_ALPHA
+ if (aa>255) aa=255; if (aa<0) aa=0; color.rgbReserved=(uint8_t) aa;
+#else
+ color.rgbReserved = 0;
+#endif
+ }//if
+ return color;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+float CxImage::KernelBSpline(const float x)
+{
+ if (x>2.0f) return 0.0f;
+ // thanks to Kristian Kratzenstein
+ float a, b, c, d;
+ float xm1 = x - 1.0f; // Was calculatet anyway cause the "if((x-1.0f) < 0)"
+ float xp1 = x + 1.0f;
+ float xp2 = x + 2.0f;
+
+ if ((xp2) <= 0.0f) a = 0.0f; else a = xp2*xp2*xp2; // Only float, not float -> double -> float
+ if ((xp1) <= 0.0f) b = 0.0f; else b = xp1*xp1*xp1;
+ if (x <= 0) c = 0.0f; else c = x*x*x;
+ if ((xm1) <= 0.0f) d = 0.0f; else d = xm1*xm1*xm1;
+
+ return (0.16666666666666666667f * (a - (4.0f * b) + (6.0f * c) - (4.0f * d)));
+
+ /* equivalent <Vladimír Kloucek>
+ if (x < -2.0)
+ return(0.0f);
+ if (x < -1.0)
+ return((2.0f+x)*(2.0f+x)*(2.0f+x)*0.16666666666666666667f);
+ if (x < 0.0)
+ return((4.0f+x*x*(-6.0f-3.0f*x))*0.16666666666666666667f);
+ if (x < 1.0)
+ return((4.0f+x*x*(-6.0f+3.0f*x))*0.16666666666666666667f);
+ if (x < 2.0)
+ return((2.0f-x)*(2.0f-x)*(2.0f-x)*0.16666666666666666667f);
+ return(0.0f);
+ */
+}
+
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Bilinear interpolation kernel:
+ \verbatim
+ /
+ | 1-t , if 0 <= t <= 1
+ h(t) = | t+1 , if -1 <= t < 0
+ | 0 , otherwise
+ \
+ \endverbatim
+ * ***bd*** 2.2004
+ */
+float CxImage::KernelLinear(const float t)
+{
+// if (0<=t && t<=1) return 1-t;
+// if (-1<=t && t<0) return 1+t;
+// return 0;
+
+ //<Vladimír Kloucek>
+ if (t < -1.0f)
+ return 0.0f;
+ if (t < 0.0f)
+ return 1.0f+t;
+ if (t < 1.0f)
+ return 1.0f-t;
+ return 0.0f;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Bicubic interpolation kernel (a=-1):
+ \verbatim
+ /
+ | 1-2|t|**2+|t|**3 , if |t| < 1
+ h(t) = | 4-8|t|+5|t|**2-|t|**3 , if 1<=|t|<2
+ | 0 , otherwise
+ \
+ \endverbatim
+ * ***bd*** 2.2004
+ */
+float CxImage::KernelCubic(const float t)
+{
+ float abs_t = (float)fabs(t);
+ float abs_t_sq = abs_t * abs_t;
+ if (abs_t<1) return 1-2*abs_t_sq+abs_t_sq*abs_t;
+ if (abs_t<2) return 4 - 8*abs_t +5*abs_t_sq - abs_t_sq*abs_t;
+ return 0;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Bicubic kernel (for a=-1 it is the same as BicubicKernel):
+ \verbatim
+ /
+ | (a+2)|t|**3 - (a+3)|t|**2 + 1 , |t| <= 1
+ h(t) = | a|t|**3 - 5a|t|**2 + 8a|t| - 4a , 1 < |t| <= 2
+ | 0 , otherwise
+ \
+ \endverbatim
+ * Often used values for a are -1 and -1/2.
+ */
+float CxImage::KernelGeneralizedCubic(const float t, const float a)
+{
+ float abs_t = (float)fabs(t);
+ float abs_t_sq = abs_t * abs_t;
+ if (abs_t<1) return (a+2)*abs_t_sq*abs_t - (a+3)*abs_t_sq + 1;
+ if (abs_t<2) return a*abs_t_sq*abs_t - 5*a*abs_t_sq + 8*a*abs_t - 4*a;
+ return 0;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Lanczos windowed sinc interpolation kernel with radius r.
+ \verbatim
+ /
+ h(t) = | sinc(t)*sinc(t/r) , if |t|<r
+ | 0 , otherwise
+ \
+ \endverbatim
+ * ***bd*** 2.2004
+ */
+float CxImage::KernelLanczosSinc(const float t, const float r)
+{
+ if (fabs(t) > r) return 0;
+ if (t==0) return 1;
+ float pit=PI*t;
+ float pitd=pit/r;
+ return (float)((sin(pit)/pit) * (sin(pitd)/pitd));
+}
+
+////////////////////////////////////////////////////////////////////////////////
+float CxImage::KernelBox(const float x)
+{
+ if (x < -0.5f)
+ return 0.0f;
+ if (x < 0.5f)
+ return 1.0f;
+ return 0.0f;
+}
+////////////////////////////////////////////////////////////////////////////////
+float CxImage::KernelHermite(const float x)
+{
+ if (x < -1.0f)
+ return 0.0f;
+ if (x < 0.0f)
+ return (-2.0f*x-3.0f)*x*x+1.0f;
+ if (x < 1.0f)
+ return (2.0f*x-3.0f)*x*x+1.0f;
+ return 0.0f;
+// if (fabs(x)>1) return 0.0f;
+// return(0.5f+0.5f*(float)cos(PI*x));
+}
+////////////////////////////////////////////////////////////////////////////////
+float CxImage::KernelHanning(const float x)
+{
+ if (fabs(x)>1) return 0.0f;
+ return (0.5f+0.5f*(float)cos(PI*x))*((float)sin(PI*x)/(PI*x));
+}
+////////////////////////////////////////////////////////////////////////////////
+float CxImage::KernelHamming(const float x)
+{
+ if (x < -1.0f)
+ return 0.0f;
+ if (x < 0.0f)
+ return 0.92f*(-2.0f*x-3.0f)*x*x+1.0f;
+ if (x < 1.0f)
+ return 0.92f*(2.0f*x-3.0f)*x*x+1.0f;
+ return 0.0f;
+// if (fabs(x)>1) return 0.0f;
+// return(0.54f+0.46f*(float)cos(PI*x));
+}
+////////////////////////////////////////////////////////////////////////////////
+float CxImage::KernelSinc(const float x)
+{
+ if (x == 0.0)
+ return(1.0);
+ return((float)sin(PI*x)/(PI*x));
+}
+////////////////////////////////////////////////////////////////////////////////
+float CxImage::KernelBlackman(const float x)
+{
+ //if (fabs(x)>1) return 0.0f;
+ return (0.42f+0.5f*(float)cos(PI*x)+0.08f*(float)cos(2.0f*PI*x));
+}
+////////////////////////////////////////////////////////////////////////////////
+float CxImage::KernelBessel_J1(const float x)
+{
+ double p, q;
+
+ register int32_t i;
+
+ static const double
+ Pone[] =
+ {
+ 0.581199354001606143928050809e+21,
+ -0.6672106568924916298020941484e+20,
+ 0.2316433580634002297931815435e+19,
+ -0.3588817569910106050743641413e+17,
+ 0.2908795263834775409737601689e+15,
+ -0.1322983480332126453125473247e+13,
+ 0.3413234182301700539091292655e+10,
+ -0.4695753530642995859767162166e+7,
+ 0.270112271089232341485679099e+4
+ },
+ Qone[] =
+ {
+ 0.11623987080032122878585294e+22,
+ 0.1185770712190320999837113348e+20,
+ 0.6092061398917521746105196863e+17,
+ 0.2081661221307607351240184229e+15,
+ 0.5243710262167649715406728642e+12,
+ 0.1013863514358673989967045588e+10,
+ 0.1501793594998585505921097578e+7,
+ 0.1606931573481487801970916749e+4,
+ 0.1e+1
+ };
+
+ p = Pone[8];
+ q = Qone[8];
+ for (i=7; i >= 0; i--)
+ {
+ p = p*x*x+Pone[i];
+ q = q*x*x+Qone[i];
+ }
+ return (float)(p/q);
+}
+////////////////////////////////////////////////////////////////////////////////
+float CxImage::KernelBessel_P1(const float x)
+{
+ double p, q;
+
+ register int32_t i;
+
+ static const double
+ Pone[] =
+ {
+ 0.352246649133679798341724373e+5,
+ 0.62758845247161281269005675e+5,
+ 0.313539631109159574238669888e+5,
+ 0.49854832060594338434500455e+4,
+ 0.2111529182853962382105718e+3,
+ 0.12571716929145341558495e+1
+ },
+ Qone[] =
+ {
+ 0.352246649133679798068390431e+5,
+ 0.626943469593560511888833731e+5,
+ 0.312404063819041039923015703e+5,
+ 0.4930396490181088979386097e+4,
+ 0.2030775189134759322293574e+3,
+ 0.1e+1
+ };
+
+ p = Pone[5];
+ q = Qone[5];
+ for (i=4; i >= 0; i--)
+ {
+ p = p*(8.0/x)*(8.0/x)+Pone[i];
+ q = q*(8.0/x)*(8.0/x)+Qone[i];
+ }
+ return (float)(p/q);
+}
+////////////////////////////////////////////////////////////////////////////////
+float CxImage::KernelBessel_Q1(const float x)
+{
+ double p, q;
+
+ register int32_t i;
+
+ static const double
+ Pone[] =
+ {
+ 0.3511751914303552822533318e+3,
+ 0.7210391804904475039280863e+3,
+ 0.4259873011654442389886993e+3,
+ 0.831898957673850827325226e+2,
+ 0.45681716295512267064405e+1,
+ 0.3532840052740123642735e-1
+ },
+ Qone[] =
+ {
+ 0.74917374171809127714519505e+4,
+ 0.154141773392650970499848051e+5,
+ 0.91522317015169922705904727e+4,
+ 0.18111867005523513506724158e+4,
+ 0.1038187585462133728776636e+3,
+ 0.1e+1
+ };
+
+ p = Pone[5];
+ q = Qone[5];
+ for (i=4; i >= 0; i--)
+ {
+ p = p*(8.0/x)*(8.0/x)+Pone[i];
+ q = q*(8.0/x)*(8.0/x)+Qone[i];
+ }
+ return (float)(p/q);
+}
+////////////////////////////////////////////////////////////////////////////////
+float CxImage::KernelBessel_Order1(float x)
+{
+ float p, q;
+
+ if (x == 0.0)
+ return (0.0f);
+ p = x;
+ if (x < 0.0)
+ x=(-x);
+ if (x < 8.0)
+ return(p*KernelBessel_J1(x));
+ q = (float)sqrt(2.0f/(PI*x))*(float)(KernelBessel_P1(x)*(1.0f/sqrt(2.0f)*(sin(x)-cos(x)))-8.0f/x*KernelBessel_Q1(x)*
+ (-1.0f/sqrt(2.0f)*(sin(x)+cos(x))));
+ if (p < 0.0f)
+ q = (-q);
+ return (q);
+}
+////////////////////////////////////////////////////////////////////////////////
+float CxImage::KernelBessel(const float x)
+{
+ if (x == 0.0f)
+ return(PI/4.0f);
+ return(KernelBessel_Order1(PI*x)/(2.0f*x));
+}
+////////////////////////////////////////////////////////////////////////////////
+float CxImage::KernelGaussian(const float x)
+{
+ return (float)(exp(-2.0f*x*x)*0.79788456080287f/*sqrt(2.0f/PI)*/);
+}
+////////////////////////////////////////////////////////////////////////////////
+float CxImage::KernelQuadratic(const float x)
+{
+ if (x < -1.5f)
+ return(0.0f);
+ if (x < -0.5f)
+ return(0.5f*(x+1.5f)*(x+1.5f));
+ if (x < 0.5f)
+ return(0.75f-x*x);
+ if (x < 1.5f)
+ return(0.5f*(x-1.5f)*(x-1.5f));
+ return(0.0f);
+}
+////////////////////////////////////////////////////////////////////////////////
+float CxImage::KernelMitchell(const float x)
+{
+#define KM_B (1.0f/3.0f)
+#define KM_C (1.0f/3.0f)
+#define KM_P0 (( 6.0f - 2.0f * KM_B ) / 6.0f)
+#define KM_P2 ((-18.0f + 12.0f * KM_B + 6.0f * KM_C) / 6.0f)
+#define KM_P3 (( 12.0f - 9.0f * KM_B - 6.0f * KM_C) / 6.0f)
+#define KM_Q0 (( 8.0f * KM_B + 24.0f * KM_C) / 6.0f)
+#define KM_Q1 ((-12.0f * KM_B - 48.0f * KM_C) / 6.0f)
+#define KM_Q2 (( 6.0f * KM_B + 30.0f * KM_C) / 6.0f)
+#define KM_Q3 (( -1.0f * KM_B - 6.0f * KM_C) / 6.0f)
+
+ if (x < -2.0)
+ return(0.0f);
+ if (x < -1.0)
+ return(KM_Q0-x*(KM_Q1-x*(KM_Q2-x*KM_Q3)));
+ if (x < 0.0f)
+ return(KM_P0+x*x*(KM_P2-x*KM_P3));
+ if (x < 1.0f)
+ return(KM_P0+x*x*(KM_P2+x*KM_P3));
+ if (x < 2.0f)
+ return(KM_Q0+x*(KM_Q1+x*(KM_Q2+x*KM_Q3)));
+ return(0.0f);
+}
+////////////////////////////////////////////////////////////////////////////////
+float CxImage::KernelCatrom(const float x)
+{
+ if (x < -2.0)
+ return(0.0f);
+ if (x < -1.0)
+ return(0.5f*(4.0f+x*(8.0f+x*(5.0f+x))));
+ if (x < 0.0)
+ return(0.5f*(2.0f+x*x*(-5.0f-3.0f*x)));
+ if (x < 1.0)
+ return(0.5f*(2.0f+x*x*(-5.0f+3.0f*x)));
+ if (x < 2.0)
+ return(0.5f*(4.0f+x*(-8.0f+x*(5.0f-x))));
+ return(0.0f);
+}
+////////////////////////////////////////////////////////////////////////////////
+float CxImage::KernelPower(const float x, const float a)
+{
+ if (fabs(x)>1) return 0.0f;
+ return (1.0f - (float)fabs(pow(x,a)));
+}
+////////////////////////////////////////////////////////////////////////////////
+
+#endif
diff --git a/smelt/sdl/CxImage/ximaiter.h b/smelt/sdl/CxImage/ximaiter.h new file mode 100644 index 0000000..2371d28 --- /dev/null +++ b/smelt/sdl/CxImage/ximaiter.h @@ -0,0 +1,253 @@ +/*
+ * File: ImaIter.h
+ * Purpose: Declaration of the Platform Independent Image Base Class
+ * Author: Alejandro Aguilar Sierra
+ * Created: 1995
+ * Copyright: (c) 1995, Alejandro Aguilar Sierra <asierra(at)servidor(dot)unam(dot)mx>
+ *
+ * 07/08/2001 Davide Pizzolato - www.xdp.it
+ * - removed slow loops
+ * - added safe checks
+ *
+ * Permission is given by the author to freely redistribute and include
+ * this code in any program as int32_t as this credit is given where due.
+ *
+ * COVERED CODE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS, WITHOUT WARRANTY
+ * OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, WARRANTIES
+ * THAT THE COVERED CODE IS FREE OF DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE
+ * OR NON-INFRINGING. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE COVERED
+ * CODE IS WITH YOU. SHOULD ANY COVERED CODE PROVE DEFECTIVE IN ANY RESPECT, YOU (NOT
+ * THE INITIAL DEVELOPER OR ANY OTHER CONTRIBUTOR) ASSUME THE COST OF ANY NECESSARY
+ * SERVICING, REPAIR OR CORRECTION. THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL
+ * PART OF THIS LICENSE. NO USE OF ANY COVERED CODE IS AUTHORIZED HEREUNDER EXCEPT UNDER
+ * THIS DISCLAIMER.
+ *
+ * Use at your own risk!
+ * ==========================================================
+ */
+
+#if !defined(__ImaIter_h)
+#define __ImaIter_h
+
+#include "ximage.h"
+#include "ximadef.h"
+
+class CImageIterator
+{
+friend class CxImage;
+protected:
+ int32_t Itx, Ity; // Counters
+ int32_t Stepx, Stepy;
+ uint8_t* IterImage; // Image pointer
+ CxImage *ima;
+public:
+ // Constructors
+ CImageIterator ( void );
+ CImageIterator ( CxImage *image );
+ operator CxImage* ();
+
+ // Iterators
+ BOOL ItOK ();
+ void Reset ();
+ void Upset ();
+ void SetRow(uint8_t *buf, int32_t n);
+ void GetRow(uint8_t *buf, int32_t n);
+ uint8_t GetByte( ) { return IterImage[Itx]; }
+ void SetByte(uint8_t b) { IterImage[Itx] = b; }
+ uint8_t* GetRow(void);
+ uint8_t* GetRow(int32_t n);
+ BOOL NextRow();
+ BOOL PrevRow();
+ BOOL NextByte();
+ BOOL PrevByte();
+
+ void SetSteps(int32_t x, int32_t y=0) { Stepx = x; Stepy = y; }
+ void GetSteps(int32_t *x, int32_t *y) { *x = Stepx; *y = Stepy; }
+ BOOL NextStep();
+ BOOL PrevStep();
+
+ void SetY(int32_t y); /* AD - for interlace */
+ int32_t GetY() {return Ity;}
+ BOOL GetCol(uint8_t* pCol, uint32_t x);
+ BOOL SetCol(uint8_t* pCol, uint32_t x);
+};
+
+/////////////////////////////////////////////////////////////////////
+inline
+CImageIterator::CImageIterator(void)
+{
+ ima = 0;
+ IterImage = 0;
+ Itx = Ity = 0;
+ Stepx = Stepy = 0;
+}
+/////////////////////////////////////////////////////////////////////
+inline
+CImageIterator::CImageIterator(CxImage *imageImpl): ima(imageImpl)
+{
+ if (ima) IterImage = ima->GetBits();
+ Itx = Ity = 0;
+ Stepx = Stepy = 0;
+}
+/////////////////////////////////////////////////////////////////////
+inline
+CImageIterator::operator CxImage* ()
+{
+ return ima;
+}
+/////////////////////////////////////////////////////////////////////
+inline BOOL CImageIterator::ItOK ()
+{
+ if (ima) return ima->IsInside(Itx, Ity);
+ else return FALSE;
+}
+/////////////////////////////////////////////////////////////////////
+inline void CImageIterator::Reset()
+{
+ if (ima) IterImage = ima->GetBits();
+ else IterImage=0;
+ Itx = Ity = 0;
+}
+/////////////////////////////////////////////////////////////////////
+inline void CImageIterator::Upset()
+{
+ Itx = 0;
+ Ity = ima->GetHeight()-1;
+ IterImage = ima->GetBits() + ima->GetEffWidth()*(ima->GetHeight()-1);
+}
+/////////////////////////////////////////////////////////////////////
+inline BOOL CImageIterator::NextRow()
+{
+ if (++Ity >= (int32_t)ima->GetHeight()) return 0;
+ IterImage += ima->GetEffWidth();
+ return 1;
+}
+/////////////////////////////////////////////////////////////////////
+inline BOOL CImageIterator::PrevRow()
+{
+ if (--Ity < 0) return 0;
+ IterImage -= ima->GetEffWidth();
+ return 1;
+}
+/* AD - for interlace */
+inline void CImageIterator::SetY(int32_t y)
+{
+ if ((y < 0) || (y > (int32_t)ima->GetHeight())) return;
+ Ity = y;
+ IterImage = ima->GetBits() + ima->GetEffWidth()*y;
+}
+/////////////////////////////////////////////////////////////////////
+inline void CImageIterator::SetRow(uint8_t *buf, int32_t n)
+{
+ if (n<0) n = (int32_t)ima->GetEffWidth();
+ else n = min(n,(int32_t)ima->GetEffWidth());
+
+ if ((IterImage!=NULL)&&(buf!=NULL)&&(n>0)) memcpy(IterImage,buf,n);
+}
+/////////////////////////////////////////////////////////////////////
+inline void CImageIterator::GetRow(uint8_t *buf, int32_t n)
+{
+ if ((IterImage!=NULL)&&(buf!=NULL)&&(n>0))
+ memcpy(buf,IterImage,min(n,(int32_t)ima->GetEffWidth()));
+}
+/////////////////////////////////////////////////////////////////////
+inline uint8_t* CImageIterator::GetRow()
+{
+ return IterImage;
+}
+/////////////////////////////////////////////////////////////////////
+inline uint8_t* CImageIterator::GetRow(int32_t n)
+{
+ SetY(n);
+ return IterImage;
+}
+/////////////////////////////////////////////////////////////////////
+inline BOOL CImageIterator::NextByte()
+{
+ if (++Itx < (int32_t)ima->GetEffWidth()) return 1;
+ else
+ if (++Ity < (int32_t)ima->GetHeight()){
+ IterImage += ima->GetEffWidth();
+ Itx = 0;
+ return 1;
+ } else
+ return 0;
+}
+/////////////////////////////////////////////////////////////////////
+inline BOOL CImageIterator::PrevByte()
+{
+ if (--Itx >= 0) return 1;
+ else
+ if (--Ity >= 0){
+ IterImage -= ima->GetEffWidth();
+ Itx = 0;
+ return 1;
+ } else
+ return 0;
+}
+/////////////////////////////////////////////////////////////////////
+inline BOOL CImageIterator::NextStep()
+{
+ Itx += Stepx;
+ if (Itx < (int32_t)ima->GetEffWidth()) return 1;
+ else {
+ Ity += Stepy;
+ if (Ity < (int32_t)ima->GetHeight()){
+ IterImage += ima->GetEffWidth();
+ Itx = 0;
+ return 1;
+ } else
+ return 0;
+ }
+}
+/////////////////////////////////////////////////////////////////////
+inline BOOL CImageIterator::PrevStep()
+{
+ Itx -= Stepx;
+ if (Itx >= 0) return 1;
+ else {
+ Ity -= Stepy;
+ if (Ity >= 0 && Ity < (int32_t)ima->GetHeight()) {
+ IterImage -= ima->GetEffWidth();
+ Itx = 0;
+ return 1;
+ } else
+ return 0;
+ }
+}
+/////////////////////////////////////////////////////////////////////
+inline BOOL CImageIterator::GetCol(uint8_t* pCol, uint32_t x)
+{
+ if ((pCol==0)||(ima->GetBpp()<8)||(x>=ima->GetWidth()))
+ return 0;
+ uint32_t h = ima->GetHeight();
+ //uint32_t line = ima->GetEffWidth();
+ uint8_t bytes = (uint8_t)(ima->GetBpp()>>3);
+ uint8_t* pSrc;
+ for (uint32_t y=0;y<h;y++){
+ pSrc = ima->GetBits(y) + x*bytes;
+ for (uint8_t w=0;w<bytes;w++){
+ *pCol++=*pSrc++;
+ }
+ }
+ return 1;
+}
+/////////////////////////////////////////////////////////////////////
+inline BOOL CImageIterator::SetCol(uint8_t* pCol, uint32_t x)
+{
+ if ((pCol==0)||(ima->GetBpp()<8)||(x>=ima->GetWidth()))
+ return 0;
+ uint32_t h = ima->GetHeight();
+ //uint32_t line = ima->GetEffWidth();
+ uint8_t bytes = (uint8_t)(ima->GetBpp()>>3);
+ uint8_t* pSrc;
+ for (uint32_t y=0;y<h;y++){
+ pSrc = ima->GetBits(y) + x*bytes;
+ for (uint8_t w=0;w<bytes;w++){
+ *pSrc++=*pCol++;
+ }
+ }
+ return 1;
+}
+/////////////////////////////////////////////////////////////////////
+#endif
diff --git a/smelt/sdl/CxImage/ximajas.cpp b/smelt/sdl/CxImage/ximajas.cpp new file mode 100644 index 0000000..788e204 --- /dev/null +++ b/smelt/sdl/CxImage/ximajas.cpp @@ -0,0 +1,325 @@ +/*
+ * File: ximajas.cpp
+ * Purpose: Platform Independent JasPer Image Class Loader and Writer
+ * 12/Apr/2003 Davide Pizzolato - www.xdp.it
+ * CxImage version 7.0.0 31/Dec/2010
+ */
+
+#include "ximajas.h"
+
+#if CXIMAGE_SUPPORT_JASPER
+
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_SUPPORT_DECODE
+////////////////////////////////////////////////////////////////////////////////
+bool CxImageJAS::Decode(CxFile *hFile, uint32_t imagetype)
+{
+ if (hFile == NULL) return false;
+
+ jas_image_t *image=0;
+ jas_stream_t *in=0;
+ jas_matrix_t **bufs=0;
+ int32_t i,error=0;
+ int32_t fmt;
+ //jas_setdbglevel(0);
+
+ cx_try
+ {
+ if (jas_init())
+ cx_throw("cannot initialize jasper");
+
+ in = jas_stream_fdopen(0, "rb");
+ if (!in)
+ cx_throw("error: cannot open standard input");
+
+ CxFileJas src(hFile,in);
+
+ fmt = jas_image_getfmt(in);
+ if (fmt<0)
+ cx_throw("error: unknowm format");
+
+ image = jas_image_decode(in, fmt, 0);
+ if (!image){
+ fmt = -1;
+ cx_throw("error: cannot load image data");
+ }
+
+ char szfmt[4];
+ *szfmt = '\0';
+ strncpy(szfmt,jas_image_fmttostr(fmt),3);
+ szfmt[3] = '\0';
+
+ fmt = -1;
+#if CXIMAGE_SUPPORT_JP2
+ if (strcmp(szfmt,"jp2")==0) fmt = CXIMAGE_FORMAT_JP2;
+#endif
+#if CXIMAGE_SUPPORT_JPC
+ if (strcmp(szfmt,"jpc")==0) fmt = CXIMAGE_FORMAT_JPC;
+#endif
+#if CXIMAGE_SUPPORT_RAS
+ if (strcmp(szfmt,"ras")==0) fmt = CXIMAGE_FORMAT_RAS;
+#endif
+#if CXIMAGE_SUPPORT_PNM
+ if (strcmp(szfmt,"pnm")==0) fmt = CXIMAGE_FORMAT_PNM;
+#endif
+#if CXIMAGE_SUPPORT_PGX
+ if (strcmp(szfmt,"pgx")==0) fmt = CXIMAGE_FORMAT_PGX;
+#endif
+
+ //if (fmt<0)
+ // cx_throw("error: unknowm format");
+
+ int32_t x,y,w,h,depth,cmptno;
+
+ w = jas_image_cmptwidth(image,0);
+ h = jas_image_cmptheight(image,0);
+ depth = jas_image_cmptprec(image,0);
+
+ if (info.nEscape == -1){
+ head.biWidth = w;
+ head.biHeight= h;
+ info.dwType = fmt<0 ? 0 : fmt;
+ cx_throw("output dimensions returned");
+ }
+
+ if (image->numcmpts_ > 64 || image->numcmpts_ < 0)
+ cx_throw("error: too many components");
+
+ // <LD> 01/Jan/2005: Always force conversion to sRGB. Seems to be required for many types of JPEG2000 file.
+ // if (depth!=1 && depth!=4 && depth!=8)
+ if (image->numcmpts_>=3 && depth <=8)
+ {
+ jas_image_t *newimage;
+ jas_cmprof_t *outprof;
+ //jas_eprintf("forcing conversion to sRGB\n");
+ outprof = jas_cmprof_createfromclrspc(JAS_CLRSPC_SRGB);
+ if (!outprof) {
+ cx_throw("cannot create sRGB profile");
+ }
+ newimage = jas_image_chclrspc(image, outprof, JAS_CMXFORM_INTENT_PER);
+ if (!newimage) {
+ jas_cmprof_destroy(outprof); // <LD> 01/Jan/2005: Destroy color profile on error.
+ cx_throw("cannot convert to sRGB");
+ }
+ jas_image_destroy(image);
+ jas_cmprof_destroy(outprof);
+ image = newimage;
+ }
+
+ bufs = (jas_matrix_t **)calloc(image->numcmpts_, sizeof(jas_matrix_t**));
+ for (i = 0; i < image->numcmpts_; ++i) {
+ bufs[i] = jas_matrix_create(1, w);
+ if (!bufs[i]) {
+ cx_throw("error: cannot allocate memory");
+ }
+ }
+
+ int32_t nshift = (depth>8) ? (depth-8) : 0;
+
+ if (image->numcmpts_==3 &&
+ image->cmpts_[0]->width_ == image->cmpts_[1]->width_ &&
+ image->cmpts_[1]->width_ == image->cmpts_[2]->width_ &&
+ image->cmpts_[0]->height_ == image->cmpts_[1]->height_ &&
+ image->cmpts_[1]->height_ == image->cmpts_[2]->height_ &&
+ image->cmpts_[0]->prec_ == image->cmpts_[1]->prec_ &&
+ image->cmpts_[1]->prec_ == image->cmpts_[2]->prec_ )
+ {
+
+ if(!Create(w,h,24,fmt))
+ cx_throw("");
+
+ RGBQUAD c;
+ for (y=0; y<h; y++) {
+ for (cmptno = 0; cmptno < image->numcmpts_; ++cmptno) {
+ jas_image_readcmpt(image, cmptno, 0, y, w, 1, bufs[cmptno]);
+ }
+
+ for (x=0; x<w; x++){
+ c.rgbRed = (uint8_t)((jas_matrix_getv(bufs[0], x)>>nshift));
+ c.rgbGreen = (uint8_t)((jas_matrix_getv(bufs[1], x)>>nshift));
+ c.rgbBlue = (uint8_t)((jas_matrix_getv(bufs[2], x)>>nshift));
+ SetPixelColor(x,h-1-y,c);
+ }
+ }
+ } else {
+ info.nNumFrames = image->numcmpts_;
+ if ((info.nFrame<0)||(info.nFrame>=info.nNumFrames)){
+ cx_throw("wrong frame!");
+ }
+ for (cmptno=0; cmptno<=info.nFrame; cmptno++) {
+ w = jas_image_cmptwidth(image,cmptno);
+ h = jas_image_cmptheight(image,cmptno);
+ depth = jas_image_cmptprec(image,cmptno);
+ if (depth>8) depth=8;
+ if(!Create(w,h,depth,imagetype))
+ cx_throw("");
+ SetGrayPalette();
+ for (y=0; y<h; y++) {
+ jas_image_readcmpt(image, cmptno, 0, y, w, 1, bufs[0]);
+ for (x=0; x<w; x++){
+ SetPixelIndex(x,h-1-y,(uint8_t)((jas_matrix_getv(bufs[0], x)>>nshift)));
+ }
+ }
+ }
+ }
+
+
+ } cx_catch {
+ if (strcmp(message,"")) strncpy(info.szLastError,message,255);
+ if (info.nEscape == -1 && fmt>0){
+ error = 0;
+ } else {
+ error = 1;
+ }
+ }
+
+ if (bufs) {
+ for (i = 0; i < image->numcmpts_; ++i){ if (bufs[i]) jas_matrix_destroy(bufs[i]);}
+ free(bufs);
+ }
+ jas_cleanup();
+ if (image) jas_image_destroy(image);
+ if (in) jas_stream_close(in);
+ return (error==0);
+}
+////////////////////////////////////////////////////////////////////////////////
+#endif //CXIMAGE_SUPPORT_DECODE
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_SUPPORT_ENCODE
+////////////////////////////////////////////////////////////////////////////////
+bool CxImageJAS::Encode(CxFile * hFile, uint32_t imagetype)
+{
+ if (EncodeSafeCheck(hFile)) return false;
+
+ if (head.biClrUsed!=0 && !IsGrayScale()){
+ strcpy(info.szLastError,"JasPer can save only RGB or GrayScale images");
+ return false;
+ }
+
+ jas_image_t *image=0;
+ jas_stream_t *out=0;
+ jas_matrix_t *cmpts[3];
+ int32_t x,y,yflip,error=0;
+ uint_fast16_t cmptno, numcmpts=0;
+ jas_image_cmptparm_t cmptparms[3], *cmptparm;
+
+ cx_try {
+
+ if (jas_init())
+ cx_throw("cannot initialize jasper");
+
+ out = jas_stream_fdopen(0, "wb");
+ if (!out)
+ cx_throw("error: cannot open standard output");
+
+ CxFileJas src(hFile,out);
+
+ numcmpts = head.biClrUsed==0 ? 3 : 1;
+
+ for (cmptno = 0, cmptparm = cmptparms; cmptno < numcmpts; ++cmptno, ++cmptparm) {
+ cmptparm->tlx = 0;
+ cmptparm->tly = 0;
+ cmptparm->hstep = 1;
+ cmptparm->vstep = 1;
+ cmptparm->width = head.biWidth;
+ cmptparm->height = head.biHeight;
+ cmptparm->prec = 8;
+ cmptparm->sgnd = false;
+ }
+
+ /* Create image object. */
+ image = jas_image_create(numcmpts, cmptparms, JAS_CLRSPC_UNKNOWN);
+ if (!image)
+ cx_throw("error : jas_image_create");
+
+ if (numcmpts == 3) {
+ jas_image_setclrspc(image, JAS_CLRSPC_SRGB);
+ jas_image_setcmpttype(image, 0,
+ JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_RGB_R));
+ jas_image_setcmpttype(image, 1,
+ JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_RGB_G));
+ jas_image_setcmpttype(image, 2,
+ JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_RGB_B));
+ } else {
+ jas_image_setclrspc(image, JAS_CLRSPC_SGRAY);
+ jas_image_setcmpttype(image, 0,
+ JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_GRAY_Y));
+ }
+
+
+ for (x = 0; x < numcmpts; ++x) { cmpts[x] = 0; }
+ /* Create temporary matrices to hold component data. */
+ for (x = 0; x < numcmpts; ++x) {
+ cmpts[x] = jas_matrix_create(1, head.biWidth);
+ if (!cmpts[x]) {
+ cx_throw("error : can't allocate memory");
+ }
+ }
+
+ RGBQUAD c;
+ for (y = 0; y < head.biHeight; ++y) {
+ for (x = 0; x < head.biWidth; ++x) {
+ if (head.biClrUsed==0){
+ c = GetPixelColor(x,y);
+ jas_matrix_setv(cmpts[0], x, c.rgbRed);
+ jas_matrix_setv(cmpts[1], x, c.rgbGreen);
+ jas_matrix_setv(cmpts[2], x, c.rgbBlue);
+ } else {
+ jas_matrix_setv(cmpts[0], x, GetPixelIndex(x,y));
+ }
+ }
+ yflip = head.biHeight - 1 - y;
+ for (cmptno = 0; cmptno < numcmpts; ++cmptno) {
+ if (jas_image_writecmpt(image, cmptno, 0, yflip, head.biWidth, 1, cmpts[cmptno])) {
+ cx_throw("error : jas_image_writecmpt");
+ }
+ }
+ }
+
+ char szfmt[4];
+ *szfmt = '\0';
+#if CXIMAGE_SUPPORT_JP2
+ if (imagetype == CXIMAGE_FORMAT_JP2) strcpy(szfmt,"jp2");
+#endif
+#if CXIMAGE_SUPPORT_JPC
+ if (imagetype == CXIMAGE_FORMAT_JPC) strcpy(szfmt,"jpc");
+#endif
+#if CXIMAGE_SUPPORT_RAS
+ if (imagetype == CXIMAGE_FORMAT_RAS) strcpy(szfmt,"ras");
+#endif
+#if CXIMAGE_SUPPORT_PNM
+ if (imagetype == CXIMAGE_FORMAT_PNM) strcpy(szfmt,"pnm");
+#endif
+#if CXIMAGE_SUPPORT_PGX
+ if (imagetype == CXIMAGE_FORMAT_PGX){
+ strcpy(szfmt,"pgx");
+ if (head.biClrUsed==0) cx_throw("PGX can save only GrayScale images");
+ }
+#endif
+ int32_t outfmt = jas_image_strtofmt(szfmt);
+
+ char szoutopts[32];
+ sprintf(szoutopts,"rate=%.3f", info.fQuality/100.0f);
+
+ if (jas_image_encode(image, out, outfmt, szoutopts)) {
+ cx_throw("error: cannot encode image");
+ }
+ jas_stream_flush(out);
+
+ } cx_catch {
+ if (strcmp(message,"")) strncpy(info.szLastError,message,255);
+ error = 1;
+ }
+
+ for (x = 0; x < numcmpts; ++x) { if (cmpts[x]) { jas_matrix_destroy(cmpts[x]); } }
+ jas_cleanup();
+ if (image) jas_image_destroy(image);
+ if (out) jas_stream_close(out);
+
+ return (error==0);
+}
+////////////////////////////////////////////////////////////////////////////////
+#endif // CXIMAGE_SUPPORT_ENCODE
+////////////////////////////////////////////////////////////////////////////////
+#endif // CXIMAGE_SUPPORT_JASPER
+
diff --git a/smelt/sdl/CxImage/ximajas.h b/smelt/sdl/CxImage/ximajas.h new file mode 100644 index 0000000..da76dfc --- /dev/null +++ b/smelt/sdl/CxImage/ximajas.h @@ -0,0 +1,88 @@ +/*
+ * File: ximajas.h
+ * Purpose: Jasper Image Class Loader and Writer
+ */
+/* ==========================================================
+ * CxImageJAS (c) 12/Apr/2003 Davide Pizzolato - www.xdp.it
+ * For conditions of distribution and use, see copyright notice in ximage.h
+ *
+ * based on JasPer Copyright (c) 2001-2003 Michael David Adams - All rights reserved.
+ * ==========================================================
+ */
+#if !defined(__ximaJAS_h)
+#define __ximaJAS_h
+
+#include "ximage.h"
+
+#if CXIMAGE_SUPPORT_JASPER
+
+#ifdef _LINUX
+ #include <jasper/jasper.h>
+#else
+ #include "../jasper/include/jasper/jasper.h"
+#endif
+
+class CxImageJAS: public CxImage
+{
+public:
+ CxImageJAS(): CxImage((uint32_t)0) {} // <vho> cast to uint32_t
+
+// bool Load(const TCHAR * imageFileName){ return CxImage::Load(imageFileName,0);}
+// bool Save(const TCHAR * imageFileName){ return CxImage::Save(imageFileName,0);}
+ bool Decode(CxFile * hFile, uint32_t imagetype = 0);
+ bool Decode(FILE *hFile, uint32_t imagetype = 0) { CxIOFile file(hFile); return Decode(&file,imagetype); }
+
+#if CXIMAGE_SUPPORT_ENCODE
+ bool Encode(CxFile * hFile, uint32_t imagetype = 0);
+ bool Encode(FILE *hFile, uint32_t imagetype = 0) { CxIOFile file(hFile); return Encode(&file,imagetype); }
+#endif // CXIMAGE_SUPPORT_ENCODE
+protected:
+
+ class CxFileJas
+ {
+ public:
+ CxFileJas(CxFile* pFile,jas_stream_t *stream)
+ {
+ if (stream->obj_) jas_free(stream->obj_);
+ stream->obj_ = pFile;
+
+ // <vho> - cannot set the stream->ops_->functions here,
+ // because this overwrites a static structure in the Jasper library.
+ // This structure is used by Jasper for internal operations too, e.g. tempfile.
+ // However the ops_ pointer in the stream can be overwritten.
+
+ //stream->ops_->close_ = JasClose;
+ //stream->ops_->read_ = JasRead;
+ //stream->ops_->seek_ = JasSeek;
+ //stream->ops_->write_ = JasWrite;
+
+ jas_stream_CxFile.close_ = JasClose;
+ jas_stream_CxFile.read_ = JasRead;
+ jas_stream_CxFile.seek_ = JasSeek;
+ jas_stream_CxFile.write_ = JasWrite;
+
+ stream->ops_ = &jas_stream_CxFile;
+
+ // <vho> - end
+ }
+ static int32_t JasRead(jas_stream_obj_t *obj, char *buf, int32_t cnt)
+ { return ((CxFile*)obj)->Read(buf,1,cnt); }
+ static int32_t JasWrite(jas_stream_obj_t *obj, char *buf, int32_t cnt)
+ { return ((CxFile*)obj)->Write(buf,1,cnt); }
+ static long JasSeek(jas_stream_obj_t *obj, long offset, int32_t origin)
+ { return ((CxFile*)obj)->Seek(offset,origin); }
+ static int32_t JasClose(jas_stream_obj_t * /*obj*/)
+ { return 1; }
+
+ // <vho>
+private:
+ jas_stream_ops_t jas_stream_CxFile;
+ // <vho> - end
+
+ };
+
+};
+
+#endif
+
+#endif
diff --git a/smelt/sdl/CxImage/ximajbg.cpp b/smelt/sdl/CxImage/ximajbg.cpp new file mode 100644 index 0000000..ee7bc10 --- /dev/null +++ b/smelt/sdl/CxImage/ximajbg.cpp @@ -0,0 +1,174 @@ +/*
+ * File: ximajbg.cpp
+ * Purpose: Platform Independent JBG Image Class Loader and Writer
+ * 18/Aug/2002 Davide Pizzolato - www.xdp.it
+ * CxImage version 7.0.0 31/Dec/2010
+ */
+
+#include "ximajbg.h"
+
+#if CXIMAGE_SUPPORT_JBG
+
+#include "ximaiter.h"
+
+#define JBIG_BUFSIZE 8192
+
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_SUPPORT_DECODE
+////////////////////////////////////////////////////////////////////////////////
+bool CxImageJBG::Decode(CxFile *hFile)
+{
+ if (hFile == NULL) return false;
+
+ struct jbg_dec_state jbig_state;
+ uint32_t xmax = 4294967295UL, ymax = 4294967295UL;
+ uint32_t len, cnt;
+ uint8_t *buffer=0,*p;
+ int32_t result;
+
+ cx_try
+ {
+ jbg_dec_init(&jbig_state);
+ jbg_dec_maxsize(&jbig_state, xmax, ymax);
+
+ buffer = (uint8_t*)malloc(JBIG_BUFSIZE);
+ if (!buffer) cx_throw("Sorry, not enough memory available!");
+
+ result = JBG_EAGAIN;
+ do {
+ len = hFile->Read(buffer, 1, JBIG_BUFSIZE);
+ if (!len) break;
+ cnt = 0;
+ p = buffer;
+ while (len > 0 && (result == JBG_EAGAIN || result == JBG_EOK)) {
+ result = jbg_dec_in(&jbig_state, p, len, &cnt);
+ p += cnt;
+ len -= cnt;
+ }
+ } while (result == JBG_EAGAIN || result == JBG_EOK);
+
+ if (hFile->Error())
+ cx_throw("Problem while reading input file");
+ if (result != JBG_EOK && result != JBG_EOK_INTR)
+ cx_throw("Problem with input file");
+
+ int32_t w, h, bpp, planes, ew;
+
+ w = jbg_dec_getwidth(&jbig_state);
+ h = jbg_dec_getheight(&jbig_state);
+ planes = jbg_dec_getplanes(&jbig_state);
+ bpp = (planes+7)>>3;
+ ew = (w + 7)>>3;
+
+ if (info.nEscape == -1){
+ head.biWidth = w;
+ head.biHeight= h;
+ info.dwType = CXIMAGE_FORMAT_JBG;
+ cx_throw("output dimensions returned");
+ }
+
+ switch (planes){
+ case 1:
+ {
+ uint8_t* binary_image = jbg_dec_getimage(&jbig_state, 0);
+
+ if (!Create(w,h,1,CXIMAGE_FORMAT_JBG))
+ cx_throw("");
+
+ SetPaletteColor(0,255,255,255);
+ SetPaletteColor(1,0,0,0);
+
+ CImageIterator iter(this);
+ iter.Upset();
+ for (int32_t i=0;i<h;i++){
+ iter.SetRow(binary_image+i*ew,ew);
+ iter.PrevRow();
+ }
+
+ break;
+ }
+ default:
+ cx_throw("cannot decode images with more than 1 plane");
+ }
+
+ jbg_dec_free(&jbig_state);
+ free(buffer);
+
+ } cx_catch {
+ jbg_dec_free(&jbig_state);
+ if (buffer) free(buffer);
+ if (strcmp(message,"")) strncpy(info.szLastError,message,255);
+ if (info.nEscape == -1 && info.dwType == CXIMAGE_FORMAT_JBG) return true;
+ return false;
+ }
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+#endif //CXIMAGE_SUPPORT_DECODE
+////////////////////////////////////////////////////////////////////////////////
+bool CxImageJBG::Encode(CxFile * hFile)
+{
+ if (EncodeSafeCheck(hFile)) return false;
+
+ if (head.biBitCount != 1){
+ strcpy(info.szLastError,"JBG can save only 1-bpp images");
+ return false;
+ }
+
+ int32_t w, h, bpp, planes, ew, i, j, x, y;
+
+ w = head.biWidth;
+ h = head.biHeight;
+ planes = 1;
+ bpp = (planes+7)>>3;
+ ew = (w + 7)>>3;
+
+ uint8_t mask;
+ RGBQUAD *rgb = GetPalette();
+ if (CompareColors(&rgb[0],&rgb[1])<0) mask=255; else mask=0;
+
+ uint8_t *buffer = (uint8_t*)malloc(ew*h*2);
+ if (!buffer) {
+ strcpy(info.szLastError,"Sorry, not enough memory available!");
+ return false;
+ }
+
+ for (y=0; y<h; y++){
+ i= y*ew;
+ j= (h-y-1)*info.dwEffWidth;
+ for (x=0; x<ew; x++){
+ buffer[i + x]=info.pImage[j + x]^mask;
+ }
+ }
+
+ struct jbg_enc_state jbig_state;
+ jbg_enc_init(&jbig_state, w, h, planes, &buffer, jbig_data_out, hFile);
+
+ //jbg_enc_layers(&jbig_state, 2);
+ //jbg_enc_lrlmax(&jbig_state, 800, 600);
+
+ // Specify a few other options (each is ignored if negative)
+ int32_t dl = -1, dh = -1, d = -1, l0 = -1, mx = -1;
+ int32_t options = JBG_TPDON | JBG_TPBON | JBG_DPON;
+ int32_t order = JBG_ILEAVE | JBG_SMID;
+ jbg_enc_lrange(&jbig_state, dl, dh);
+ jbg_enc_options(&jbig_state, order, options, l0, mx, -1);
+
+ // now encode everything and send it to data_out()
+ jbg_enc_out(&jbig_state);
+
+ // give encoder a chance to free its temporary data structures
+ jbg_enc_free(&jbig_state);
+
+ free(buffer);
+
+ if (hFile->Error()){
+ strcpy(info.szLastError,"Problem while writing JBG file");
+ return false;
+ }
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+#endif // CXIMAGE_SUPPORT_JBG
+
diff --git a/smelt/sdl/CxImage/ximajbg.h b/smelt/sdl/CxImage/ximajbg.h new file mode 100644 index 0000000..1cf4965 --- /dev/null +++ b/smelt/sdl/CxImage/ximajbg.h @@ -0,0 +1,44 @@ +/*
+ * File: ximajbg.h
+ * Purpose: JBG Image Class Loader and Writer
+ */
+/* ==========================================================
+ * CxImageJBG (c) 18/Aug/2002 Davide Pizzolato - www.xdp.it
+ * For conditions of distribution and use, see copyright notice in ximage.h
+ *
+ * based on LIBJBG Copyright (c) 2002, Markus Kuhn - All rights reserved.
+ * ==========================================================
+ */
+#if !defined(__ximaJBG_h)
+#define __ximaJBG_h
+
+#include "ximage.h"
+
+#if CXIMAGE_SUPPORT_JBG
+
+extern "C" {
+#include "../jbig/jbig.h"
+};
+
+class CxImageJBG: public CxImage
+{
+public:
+ CxImageJBG(): CxImage(CXIMAGE_FORMAT_JBG) {}
+
+// bool Load(const TCHAR * imageFileName){ return CxImage::Load(imageFileName,CXIMAGE_FORMAT_JBG);}
+// bool Save(const TCHAR * imageFileName){ return CxImage::Save(imageFileName,CXIMAGE_FORMAT_JBG);}
+ bool Decode(CxFile * hFile);
+ bool Decode(FILE *hFile) { CxIOFile file(hFile); return Decode(&file); }
+
+#if CXIMAGE_SUPPORT_ENCODE
+ bool Encode(CxFile * hFile);
+ bool Encode(FILE *hFile) { CxIOFile file(hFile); return Encode(&file); }
+#endif // CXIMAGE_SUPPORT_ENCODE
+protected:
+ static void jbig_data_out(uint8_t *buffer, uint32_t len, void *file)
+ {((CxFile*)file)->Write(buffer,len,1);}
+};
+
+#endif
+
+#endif
diff --git a/smelt/sdl/CxImage/ximajpg.cpp b/smelt/sdl/CxImage/ximajpg.cpp new file mode 100644 index 0000000..b66bf97 --- /dev/null +++ b/smelt/sdl/CxImage/ximajpg.cpp @@ -0,0 +1,538 @@ +/*
+ * File: ximajpg.cpp
+ * Purpose: Platform Independent JPEG Image Class Loader and Writer
+ * 07/Aug/2001 Davide Pizzolato - www.xdp.it
+ * CxImage version 7.0.0 31/Dec/2010
+ */
+
+#include "ximajpg.h"
+
+#if CXIMAGE_SUPPORT_JPG
+
+#ifdef _LINUX
+ #include <jmorecfg.h>
+#else
+ #include "../jpeg/jmorecfg.h"
+#endif
+
+#include "ximaiter.h"
+
+#include <setjmp.h>
+
+struct jpg_error_mgr {
+ struct jpeg_error_mgr pub; /* "public" fields */
+ jmp_buf setjmp_buffer; /* for return to caller */
+ char* buffer; /* error message <CSC>*/
+};
+typedef jpg_error_mgr *jpg_error_ptr;
+
+////////////////////////////////////////////////////////////////////////////////
+// Here's the routine that will replace the standard error_exit method:
+////////////////////////////////////////////////////////////////////////////////
+static void
+ima_jpeg_error_exit (j_common_ptr cinfo)
+{
+ /* cinfo->err really points to a my_error_mgr struct, so coerce pointer */
+ jpg_error_ptr myerr = (jpg_error_ptr) cinfo->err;
+ /* Create the message */
+ myerr->pub.format_message (cinfo, myerr->buffer);
+ /* Send it to stderr, adding a newline */
+ /* Return control to the setjmp point */
+ longjmp(myerr->setjmp_buffer, 1);
+}
+////////////////////////////////////////////////////////////////////////////////
+CxImageJPG::CxImageJPG(): CxImage(CXIMAGE_FORMAT_JPG)
+{
+#if CXIMAGEJPG_SUPPORT_EXIF
+ m_exif = NULL;
+ memset(&info.ExifInfo, 0, sizeof(EXIFINFO));
+#endif
+}
+////////////////////////////////////////////////////////////////////////////////
+CxImageJPG::~CxImageJPG()
+{
+#if CXIMAGEJPG_SUPPORT_EXIF
+ if (m_exif) delete m_exif;
+#endif
+}
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGEJPG_SUPPORT_EXIF
+bool CxImageJPG::DecodeExif(CxFile * hFile)
+{
+ m_exif = new CxExifInfo(&info.ExifInfo);
+ if (m_exif){
+ int32_t pos=hFile->Tell();
+ m_exif->DecodeExif(hFile);
+ hFile->Seek(pos,SEEK_SET);
+ return m_exif->m_exifinfo->IsExif;
+ } else {
+ return false;
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+bool CxImageJPG::GetExifThumbnail(const TCHAR *filename, const TCHAR *outname, int32_t type)
+{
+ CxIOFile file;
+ if (!file.Open(filename, _T("rb"))) return false;
+ CxExifInfo exif(&info.ExifInfo);
+ exif.DecodeExif(&file);
+ if (info.ExifInfo.IsExif && info.ExifInfo.ThumbnailPointer && info.ExifInfo.ThumbnailSize > 0)
+ { // have a thumbnail - check whether it needs rotating or resizing
+ // TODO: Write a fast routine to read the jpeg header to get the width and height
+ CxImage image(info.ExifInfo.ThumbnailPointer, info.ExifInfo.ThumbnailSize, CXIMAGE_FORMAT_JPG);
+ if (image.IsValid())
+ {
+ if (image.GetWidth() > 256 || image.GetHeight() > 256)
+ { // resize the image
+// float amount = 256.0f / max(image.GetWidth(), image.GetHeight());
+// image.Resample((int32_t)(image.GetWidth() * amount), (int32_t)(image.GetHeight() * amount), 0);
+ }
+ if (info.ExifInfo.Orientation != 1)
+ image.RotateExif(info.ExifInfo.Orientation);
+ return image.Save(outname, CXIMAGE_FORMAT_JPG);
+ }
+ // nice and fast, but we can't resize :(
+ /*
+ FILE *hFileWrite;
+ if ((hFileWrite=fopen(outname, "wb")) != NULL)
+ {
+ fwrite(m_exifinfo.ThumbnailPointer, m_exifinfo.ThumbnailSize, 1, hFileWrite);
+ fclose(hFileWrite);
+ return true;
+ }*/
+ }
+ return false;
+}
+#endif //CXIMAGEJPG_SUPPORT_EXIF
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_SUPPORT_DECODE
+////////////////////////////////////////////////////////////////////////////////
+bool CxImageJPG::Decode(CxFile * hFile)
+{
+
+ bool is_exif = false;
+#if CXIMAGEJPG_SUPPORT_EXIF
+ is_exif = DecodeExif(hFile);
+#endif
+
+ CImageIterator iter(this);
+ /* This struct contains the JPEG decompression parameters and pointers to
+ * working space (which is allocated as needed by the JPEG library).
+ */
+ struct jpeg_decompress_struct cinfo;
+ /* We use our private extension JPEG error handler. <CSC> */
+ struct jpg_error_mgr jerr;
+ jerr.buffer=info.szLastError;
+ /* More stuff */
+ JSAMPARRAY buffer; /* Output row buffer */
+ int32_t row_stride; /* physical row width in output buffer */
+
+ /* In this example we want to open the input file before doing anything else,
+ * so that the setjmp() error recovery below can assume the file is open.
+ * VERY IMPORTANT: use "b" option to fopen() if you are on a machine that
+ * requires it in order to read binary files.
+ */
+
+ /* Step 1: allocate and initialize JPEG decompression object */
+ /* We set up the normal JPEG error routines, then override error_exit. */
+ cinfo.err = jpeg_std_error(&jerr.pub);
+ jerr.pub.error_exit = ima_jpeg_error_exit;
+
+ CxFileJpg src(hFile);
+
+ /* Establish the setjmp return context for my_error_exit to use. */
+ if (setjmp(jerr.setjmp_buffer)) {
+ /* If we get here, the JPEG code has signaled an error.
+ * We need to clean up the JPEG object, close the input file, and return.
+ */
+ jpeg_destroy_decompress(&cinfo);
+ return 0;
+ }
+ /* Now we can initialize the JPEG decompression object. */
+ jpeg_create_decompress(&cinfo);
+
+ /* Step 2: specify data source (eg, a file) */
+ //jpeg_stdio_src(&cinfo, infile);
+ cinfo.src = &src;
+
+ /* Step 3: read file parameters with jpeg_read_header() */
+ (void) jpeg_read_header(&cinfo, TRUE);
+
+ /* Step 4 <chupeev> handle decoder options*/
+ uint32_t dwCodecOptions = GetCodecOption(CXIMAGE_FORMAT_JPG); //[nm_114]
+ if ((dwCodecOptions & DECODE_GRAYSCALE) != 0)
+ cinfo.out_color_space = JCS_GRAYSCALE;
+ if ((dwCodecOptions & DECODE_QUANTIZE) != 0) {
+ cinfo.quantize_colors = TRUE;
+ cinfo.desired_number_of_colors = GetJpegQuality();
+ }
+ if ((dwCodecOptions & DECODE_DITHER) != 0)
+ cinfo.dither_mode = m_nDither;
+ if ((dwCodecOptions & DECODE_ONEPASS) != 0)
+ cinfo.two_pass_quantize = FALSE;
+ if ((dwCodecOptions & DECODE_NOSMOOTH) != 0)
+ cinfo.do_fancy_upsampling = FALSE;
+
+//<DP>: Load true color images as RGB (no quantize)
+/* Step 4: set parameters for decompression */
+/* if (cinfo.jpeg_color_space!=JCS_GRAYSCALE) {
+ * cinfo.quantize_colors = TRUE;
+ * cinfo.desired_number_of_colors = 128;
+ *}
+ */ //</DP>
+
+ cinfo.scale_num = 1;
+ // Set the scale <ignacio>
+ cinfo.scale_denom = GetJpegScale();
+
+ // Borrowed the idea from GIF implementation <ignacio>
+ if (info.nEscape == -1) {
+ // Return output dimensions only
+ jpeg_calc_output_dimensions(&cinfo);
+ head.biWidth = cinfo.output_width;
+ head.biHeight = cinfo.output_height;
+ info.dwType = CXIMAGE_FORMAT_JPG;
+ jpeg_destroy_decompress(&cinfo);
+ return true;
+ }
+
+ /* Step 5: Start decompressor */
+ jpeg_start_decompress(&cinfo);
+
+ /* We may need to do some setup of our own at this point before reading
+ * the data. After jpeg_start_decompress() we have the correct scaled
+ * output image dimensions available, as well as the output colormap
+ * if we asked for color quantization.
+ */
+ //Create the image using output dimensions <ignacio>
+ //Create(cinfo.image_width, cinfo.image_height, 8*cinfo.output_components, CXIMAGE_FORMAT_JPG);
+ Create(cinfo.output_width, cinfo.output_height, 8*cinfo.output_components, CXIMAGE_FORMAT_JPG);
+
+ if (!pDib) longjmp(jerr.setjmp_buffer, 1); //<DP> check if the image has been created
+
+ if (is_exif){
+#if CXIMAGEJPG_SUPPORT_EXIF
+ if ((info.ExifInfo.Xresolution != 0.0) && (info.ExifInfo.ResolutionUnit != 0))
+ SetXDPI((int32_t)(info.ExifInfo.Xresolution/info.ExifInfo.ResolutionUnit));
+ if ((info.ExifInfo.Yresolution != 0.0) && (info.ExifInfo.ResolutionUnit != 0))
+ SetYDPI((int32_t)(info.ExifInfo.Yresolution/info.ExifInfo.ResolutionUnit));
+#endif
+ } else {
+ switch (cinfo.density_unit) {
+ case 0: // [andy] fix for aspect ratio...
+ if((cinfo.Y_density > 0) && (cinfo.X_density > 0)){
+ SetYDPI((int32_t)(GetXDPI()*(float(cinfo.Y_density)/float(cinfo.X_density))));
+ }
+ break;
+ case 2: // [andy] fix: cinfo.X/Y_density is pixels per centimeter
+ SetXDPI((int32_t)floor(cinfo.X_density * 2.54 + 0.5));
+ SetYDPI((int32_t)floor(cinfo.Y_density * 2.54 + 0.5));
+ break;
+ default:
+ SetXDPI(cinfo.X_density);
+ SetYDPI(cinfo.Y_density);
+ }
+ }
+
+ if (cinfo.out_color_space==JCS_GRAYSCALE){
+ SetGrayPalette();
+ head.biClrUsed =256;
+ } else {
+ if (cinfo.quantize_colors){
+ SetPalette(cinfo.actual_number_of_colors, cinfo.colormap[0], cinfo.colormap[1], cinfo.colormap[2]);
+ head.biClrUsed=cinfo.actual_number_of_colors;
+ } else {
+ head.biClrUsed=0;
+ }
+ }
+
+ /* JSAMPLEs per row in output buffer */
+ row_stride = cinfo.output_width * cinfo.output_components;
+
+ /* Make a one-row-high sample array that will go away when done with image */
+ buffer = (*cinfo.mem->alloc_sarray)
+ ((j_common_ptr) &cinfo, JPOOL_IMAGE, row_stride, 1);
+
+ /* Step 6: while (scan lines remain to be read) */
+ /* jpeg_read_scanlines(...); */
+ /* Here we use the library's state variable cinfo.output_scanline as the
+ * loop counter, so that we don't have to keep track ourselves.
+ */
+ iter.Upset();
+ while (cinfo.output_scanline < cinfo.output_height) {
+
+ if (info.nEscape) longjmp(jerr.setjmp_buffer, 1); // <vho> - cancel decoding
+
+ (void) jpeg_read_scanlines(&cinfo, buffer, 1);
+ // info.nProgress = (int32_t)(100*cinfo.output_scanline/cinfo.output_height);
+ //<DP> Step 6a: CMYK->RGB */
+ if ((cinfo.num_components==4)&&(cinfo.quantize_colors==FALSE)){
+ uint8_t k,*dst,*src;
+ dst=iter.GetRow();
+ src=buffer[0];
+ for(int32_t x3=0,x4=0; x3<(int32_t)info.dwEffWidth && x4<row_stride; x3+=3, x4+=4){
+ k=src[x4+3];
+ dst[x3] =(uint8_t)((k * src[x4+2])/255);
+ dst[x3+1]=(uint8_t)((k * src[x4+1])/255);
+ dst[x3+2]=(uint8_t)((k * src[x4+0])/255);
+ }
+ } else {
+ /* Assume put_scanline_someplace wants a pointer and sample count. */
+ iter.SetRow(buffer[0], row_stride);
+ }
+ iter.PrevRow();
+ }
+
+ /* Step 7: Finish decompression */
+ (void) jpeg_finish_decompress(&cinfo);
+ /* We can ignore the return value since suspension is not possible
+ * with the stdio data source.
+ */
+
+ //<DP> Step 7A: Swap red and blue components
+ // not necessary if swapped red and blue definition in jmorecfg.h;ln322 <W. Morrison>
+ if ((cinfo.num_components==3)&&(cinfo.quantize_colors==FALSE)){
+ uint8_t* r0=GetBits();
+ for(int32_t y=0;y<head.biHeight;y++){
+ if (info.nEscape) longjmp(jerr.setjmp_buffer, 1); // <vho> - cancel decoding
+ RGBtoBGR(r0,3*head.biWidth);
+ r0+=info.dwEffWidth;
+ }
+ }
+
+ /* Step 8: Release JPEG decompression object */
+ /* This is an important step since it will release a good deal of memory. */
+ jpeg_destroy_decompress(&cinfo);
+
+ /* At this point you may want to check to see whether any corrupt-data
+ * warnings occurred (test whether jerr.pub.num_warnings is nonzero).
+ */
+
+ /* And we're done! */
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+#endif //CXIMAGE_SUPPORT_DECODE
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_SUPPORT_ENCODE
+////////////////////////////////////////////////////////////////////////////////
+bool CxImageJPG::Encode(CxFile * hFile)
+{
+ if (EncodeSafeCheck(hFile)) return false;
+
+ if (head.biClrUsed!=0 && !IsGrayScale()){
+ strcpy(info.szLastError,"JPEG can save only RGB or GreyScale images");
+ return false;
+ }
+
+ // necessary for EXIF, and for roll backs
+ int32_t pos=hFile->Tell();
+
+ /* This struct contains the JPEG compression parameters and pointers to
+ * working space (which is allocated as needed by the JPEG library).
+ * It is possible to have several such structures, representing multiple
+ * compression/decompression processes, in existence at once. We refer
+ * to any one struct (and its associated working data) as a "JPEG object".
+ */
+ struct jpeg_compress_struct cinfo;
+ /* This struct represents a JPEG error handler. It is declared separately
+ * because applications often want to supply a specialized error handler
+ * (see the second half of this file for an example). But here we just
+ * take the easy way out and use the standard error handler, which will
+ * print a message on stderr and call exit() if compression fails.
+ * Note that this struct must live as int32_t as the main JPEG parameter
+ * struct, to avoid dangling-pointer problems.
+ */
+ //struct jpeg_error_mgr jerr;
+ /* We use our private extension JPEG error handler. <CSC> */
+ struct jpg_error_mgr jerr;
+ jerr.buffer=info.szLastError;
+ /* More stuff */
+ int32_t row_stride; /* physical row width in image buffer */
+ JSAMPARRAY buffer; /* Output row buffer */
+
+ /* Step 1: allocate and initialize JPEG compression object */
+ /* We have to set up the error handler first, in case the initialization
+ * step fails. (Unlikely, but it could happen if you are out of memory.)
+ * This routine fills in the contents of struct jerr, and returns jerr's
+ * address which we place into the link field in cinfo.
+ */
+ //cinfo.err = jpeg_std_error(&jerr); <CSC>
+ /* We set up the normal JPEG error routines, then override error_exit. */
+ cinfo.err = jpeg_std_error(&jerr.pub);
+ jerr.pub.error_exit = ima_jpeg_error_exit;
+
+ /* Establish the setjmp return context for my_error_exit to use. */
+ if (setjmp(jerr.setjmp_buffer)) {
+ /* If we get here, the JPEG code has signaled an error.
+ * We need to clean up the JPEG object, close the input file, and return.
+ */
+ strcpy(info.szLastError, jerr.buffer); //<CSC>
+ jpeg_destroy_compress(&cinfo);
+ return 0;
+ }
+
+ /* Now we can initialize the JPEG compression object. */
+ jpeg_create_compress(&cinfo);
+ /* Step 2: specify data destination (eg, a file) */
+ /* Note: steps 2 and 3 can be done in either order. */
+ /* Here we use the library-supplied code to send compressed data to a
+ * stdio stream. You can also write your own code to do something else.
+ * VERY IMPORTANT: use "b" option to fopen() if you are on a machine that
+ * requires it in order to write binary files.
+ */
+
+ //jpeg_stdio_dest(&cinfo, outfile);
+ CxFileJpg dest(hFile);
+ cinfo.dest = &dest;
+
+ /* Step 3: set parameters for compression */
+ /* First we supply a description of the input image.
+ * Four fields of the cinfo struct must be filled in:
+ */
+ cinfo.image_width = GetWidth(); // image width and height, in pixels
+ cinfo.image_height = GetHeight();
+
+ if (IsGrayScale()){
+ cinfo.input_components = 1; // # of color components per pixel
+ cinfo.in_color_space = JCS_GRAYSCALE; /* colorspace of input image */
+ } else {
+ cinfo.input_components = 3; // # of color components per pixel
+ cinfo.in_color_space = JCS_RGB; /* colorspace of input image */
+ }
+
+ /* Now use the library's routine to set default compression parameters.
+ * (You must set at least cinfo.in_color_space before calling this,
+ * since the defaults depend on the source color space.)
+ */
+ jpeg_set_defaults(&cinfo);
+ /* Now you can set any non-default parameters you wish to.
+ * Here we just illustrate the use of quality (quantization table) scaling:
+ */
+
+ uint32_t dwCodecOptions = GetCodecOption(CXIMAGE_FORMAT_JPG); //[nm_114]
+//#ifdef C_ARITH_CODING_SUPPORTED
+ if ((dwCodecOptions & ENCODE_ARITHMETIC) != 0)
+ cinfo.arith_code = TRUE;
+//#endif
+
+//#ifdef ENTROPY_OPT_SUPPORTED
+ if ((dwCodecOptions & ENCODE_OPTIMIZE) != 0)
+ cinfo.optimize_coding = TRUE;
+//#endif
+
+ if ((dwCodecOptions & ENCODE_GRAYSCALE) != 0)
+ jpeg_set_colorspace(&cinfo, JCS_GRAYSCALE);
+
+ if ((dwCodecOptions & ENCODE_SMOOTHING) != 0)
+ cinfo.smoothing_factor = m_nSmoothing;
+
+ jpeg_set_quality(&cinfo, GetJpegQuality(), (dwCodecOptions & ENCODE_BASELINE) != 0);
+
+//#ifdef C_PROGRESSIVE_SUPPORTED
+ if ((dwCodecOptions & ENCODE_PROGRESSIVE) != 0)
+ jpeg_simple_progression(&cinfo);
+//#endif
+
+#ifdef C_LOSSLESS_SUPPORTED
+ if ((dwCodecOptions & ENCODE_LOSSLESS) != 0)
+ jpeg_simple_lossless(&cinfo, m_nPredictor, m_nPointTransform);
+#endif
+
+ //SetCodecOption(ENCODE_SUBSAMPLE_444 | GetCodecOption(CXIMAGE_FORMAT_JPG),CXIMAGE_FORMAT_JPG);
+
+ // 2x2, 1x1, 1x1 (4:1:1) : High (default sub sampling)
+ cinfo.comp_info[0].h_samp_factor = 2;
+ cinfo.comp_info[0].v_samp_factor = 2;
+ cinfo.comp_info[1].h_samp_factor = 1;
+ cinfo.comp_info[1].v_samp_factor = 1;
+ cinfo.comp_info[2].h_samp_factor = 1;
+ cinfo.comp_info[2].v_samp_factor = 1;
+
+ if ((dwCodecOptions & ENCODE_SUBSAMPLE_422) != 0){
+ // 2x1, 1x1, 1x1 (4:2:2) : Medium
+ cinfo.comp_info[0].h_samp_factor = 2;
+ cinfo.comp_info[0].v_samp_factor = 1;
+ cinfo.comp_info[1].h_samp_factor = 1;
+ cinfo.comp_info[1].v_samp_factor = 1;
+ cinfo.comp_info[2].h_samp_factor = 1;
+ cinfo.comp_info[2].v_samp_factor = 1;
+ }
+
+ if ((dwCodecOptions & ENCODE_SUBSAMPLE_444) != 0){
+ // 1x1 1x1 1x1 (4:4:4) : None
+ cinfo.comp_info[0].h_samp_factor = 1;
+ cinfo.comp_info[0].v_samp_factor = 1;
+ cinfo.comp_info[1].h_samp_factor = 1;
+ cinfo.comp_info[1].v_samp_factor = 1;
+ cinfo.comp_info[2].h_samp_factor = 1;
+ cinfo.comp_info[2].v_samp_factor = 1;
+ }
+
+ cinfo.density_unit=1;
+ cinfo.X_density=(uint16_t)GetXDPI();
+ cinfo.Y_density=(uint16_t)GetYDPI();
+
+ /* Step 4: Start compressor */
+ /* TRUE ensures that we will write a complete interchange-JPEG file.
+ * Pass TRUE unless you are very sure of what you're doing.
+ */
+ jpeg_start_compress(&cinfo, TRUE);
+
+ /* Step 5: while (scan lines remain to be written) */
+ /* jpeg_write_scanlines(...); */
+ /* Here we use the library's state variable cinfo.next_scanline as the
+ * loop counter, so that we don't have to keep track ourselves.
+ * To keep things simple, we pass one scanline per call; you can pass
+ * more if you wish, though.
+ */
+ row_stride = info.dwEffWidth; /* JSAMPLEs per row in image_buffer */
+
+ //<DP> "8+row_stride" fix heap deallocation problem during debug???
+ buffer = (*cinfo.mem->alloc_sarray)
+ ((j_common_ptr) &cinfo, JPOOL_IMAGE, 8+row_stride, 1);
+
+ CImageIterator iter(this);
+
+ iter.Upset();
+ while (cinfo.next_scanline < cinfo.image_height) {
+ // info.nProgress = (int32_t)(100*cinfo.next_scanline/cinfo.image_height);
+ iter.GetRow(buffer[0], row_stride);
+ // not necessary if swapped red and blue definition in jmorecfg.h;ln322 <W. Morrison>
+ if (head.biClrUsed==0){ // swap R & B for RGB images
+ RGBtoBGR(buffer[0], row_stride); // Lance : 1998/09/01 : Bug ID: EXP-2.1.1-9
+ }
+ iter.PrevRow();
+ (void) jpeg_write_scanlines(&cinfo, buffer, 1);
+ }
+
+ /* Step 6: Finish compression */
+ jpeg_finish_compress(&cinfo);
+
+ /* Step 7: release JPEG compression object */
+ /* This is an important step since it will release a good deal of memory. */
+ jpeg_destroy_compress(&cinfo);
+
+
+#if CXIMAGEJPG_SUPPORT_EXIF
+ if (m_exif && m_exif->m_exifinfo->IsExif){
+ // discard useless sections (if any) read from original image
+ m_exif->DiscardAllButExif();
+ // read new created image, to split the sections
+ hFile->Seek(pos,SEEK_SET);
+ m_exif->DecodeExif(hFile,EXIF_READ_IMAGE);
+ // save back the image, adding EXIF section
+ hFile->Seek(pos,SEEK_SET);
+ m_exif->EncodeExif(hFile);
+ }
+#endif
+
+
+ /* And we're done! */
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+#endif // CXIMAGE_SUPPORT_ENCODE
+////////////////////////////////////////////////////////////////////////////////
+#endif // CXIMAGE_SUPPORT_JPG
+
diff --git a/smelt/sdl/CxImage/ximajpg.h b/smelt/sdl/CxImage/ximajpg.h new file mode 100644 index 0000000..023bf61 --- /dev/null +++ b/smelt/sdl/CxImage/ximajpg.h @@ -0,0 +1,283 @@ +/*
+ * File: ximajpg.h
+ * Purpose: JPG Image Class Loader and Writer
+ */
+/* ==========================================================
+ * CxImageJPG (c) 07/Aug/2001 Davide Pizzolato - www.xdp.it
+ * For conditions of distribution and use, see copyright notice in ximage.h
+ *
+ * Special thanks to Troels Knakkergaard for new features, enhancements and bugfixes
+ *
+ * Special thanks to Chris Shearer Cooper for CxFileJpg tips & code
+ *
+ * EXIF support based on jhead-1.8 by Matthias Wandel <mwandel(at)rim(dot)net>
+ *
+ * original CImageJPG and CImageIterator implementation are:
+ * Copyright: (c) 1995, Alejandro Aguilar Sierra <asierra(at)servidor(dot)unam(dot)mx>
+ *
+ * This software is based in part on the work of the Independent JPEG Group.
+ * Copyright (C) 1991-1998, Thomas G. Lane.
+ * ==========================================================
+ */
+#if !defined(__ximaJPEG_h)
+#define __ximaJPEG_h
+
+#include "ximage.h"
+
+#if CXIMAGE_SUPPORT_JPG
+
+#define CXIMAGEJPG_SUPPORT_EXIF CXIMAGE_SUPPORT_EXIF
+
+extern "C" {
+#ifdef _LINUX
+ #include <jpeglib.h>
+ #include <jerror.h>
+#else
+ #include "jpeg/jpeglib.h"
+ #include "jpeg/jerror.h"
+#endif
+}
+
+class DLL_EXP CxImageJPG: public CxImage
+{
+public:
+ CxImageJPG();
+ ~CxImageJPG();
+
+// bool Load(const TCHAR * imageFileName){ return CxImage::Load(imageFileName,CXIMAGE_FORMAT_JPG);}
+// bool Save(const TCHAR * imageFileName){ return CxImage::Save(imageFileName,CXIMAGE_FORMAT_JPG);}
+ bool Decode(CxFile * hFile);
+ bool Decode(FILE *hFile) { CxIOFile file(hFile); return Decode(&file); }
+
+#if CXIMAGE_SUPPORT_ENCODE
+ bool Encode(CxFile * hFile);
+ bool Encode(FILE *hFile) { CxIOFile file(hFile); return Encode(&file); }
+#endif // CXIMAGE_SUPPORT_ENCODE
+
+/*
+ * EXIF support based on jhead-1.8 by Matthias Wandel <mwandel(at)rim(dot)net>
+ */
+
+#if CXIMAGEJPG_SUPPORT_EXIF
+
+//--------------------------------------------------------------------------
+// JPEG markers consist of one or more 0xFF bytes, followed by a marker
+// code byte (which is not an FF). Here are the marker codes of interest
+// in this program. (See jdmarker.c for a more complete list.)
+//--------------------------------------------------------------------------
+
+#define M_SOF0 0xC0 // Start Of Frame N
+#define M_SOF1 0xC1 // N indicates which compression process
+#define M_SOF2 0xC2 // Only SOF0-SOF2 are now in common use
+#define M_SOF3 0xC3
+#define M_SOF5 0xC5 // NB: codes C4 and CC are NOT SOF markers
+#define M_SOF6 0xC6
+#define M_SOF7 0xC7
+#define M_SOF9 0xC9
+#define M_SOF10 0xCA
+#define M_SOF11 0xCB
+#define M_SOF13 0xCD
+#define M_SOF14 0xCE
+#define M_SOF15 0xCF
+#define M_SOI 0xD8 // Start Of Image (beginning of datastream)
+#define M_EOI 0xD9 // End Of Image (end of datastream)
+#define M_SOS 0xDA // Start Of Scan (begins compressed data)
+#define M_JFIF 0xE0 // Jfif marker
+#define M_EXIF 0xE1 // Exif marker
+#define M_COM 0xFE // COMment
+
+#define PSEUDO_IMAGE_MARKER 0x123; // Extra value.
+
+#define EXIF_READ_EXIF 0x01
+#define EXIF_READ_IMAGE 0x02
+#define EXIF_READ_ALL 0x03
+
+class DLL_EXP CxExifInfo
+{
+
+typedef struct tag_Section_t{
+ uint8_t* Data;
+ int32_t Type;
+ unsigned Size;
+} Section_t;
+
+public:
+ EXIFINFO* m_exifinfo;
+ char m_szLastError[256];
+ CxExifInfo(EXIFINFO* info = NULL);
+ ~CxExifInfo();
+ bool DecodeExif(CxFile * hFile, int32_t nReadMode = EXIF_READ_EXIF);
+ bool EncodeExif(CxFile * hFile);
+ void DiscardAllButExif();
+protected:
+ bool process_EXIF(uint8_t * CharBuf, uint32_t length);
+ void process_COM (const uint8_t * Data, int32_t length);
+ void process_SOFn (const uint8_t * Data, int32_t marker);
+ int32_t Get16u(void * Short);
+ int32_t Get16m(void * Short);
+ int32_t Get32s(void * Long);
+ uint32_t Get32u(void * Long);
+ double ConvertAnyFormat(void * ValuePtr, int32_t Format);
+ void* FindSection(int32_t SectionType);
+ bool ProcessExifDir(uint8_t * DirStart, uint8_t * OffsetBase, unsigned ExifLength,
+ EXIFINFO * const pInfo, uint8_t ** const LastExifRefdP, int32_t NestingLevel=0);
+ int32_t ExifImageWidth;
+ int32_t MotorolaOrder;
+ Section_t Sections[MAX_SECTIONS];
+ int32_t SectionsRead;
+ bool freeinfo;
+};
+
+ CxExifInfo* m_exif;
+ bool DecodeExif(CxFile * hFile);
+ bool DecodeExif(FILE * hFile) { CxIOFile file(hFile); return DecodeExif(&file); }
+ bool GetExifThumbnail(const TCHAR *filename, const TCHAR *outname, int32_t type);
+
+#endif //CXIMAGEJPG_SUPPORT_EXIF
+
+////////////////////////////////////////////////////////////////////////////////////////
+////////////////////// C x F i l e J p g ////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////////////
+
+// thanks to Chris Shearer Cooper <cscooper(at)frii(dot)com>
+class CxFileJpg : public jpeg_destination_mgr, public jpeg_source_mgr
+ {
+public:
+ enum { eBufSize = 4096 };
+
+ CxFileJpg(CxFile* pFile)
+ {
+ m_pFile = pFile;
+
+ init_destination = InitDestination;
+ empty_output_buffer = EmptyOutputBuffer;
+ term_destination = TermDestination;
+
+ init_source = InitSource;
+ fill_input_buffer = FillInputBuffer;
+ skip_input_data = SkipInputData;
+ resync_to_restart = jpeg_resync_to_restart; // use default method
+ term_source = TermSource;
+ next_input_byte = NULL; //* => next byte to read from buffer
+ bytes_in_buffer = 0; //* # of bytes remaining in buffer
+
+ m_pBuffer = new uint8_t[eBufSize];
+ }
+ ~CxFileJpg()
+ {
+ delete [] m_pBuffer;
+ }
+
+ static void InitDestination(j_compress_ptr cinfo)
+ {
+ CxFileJpg* pDest = (CxFileJpg*)cinfo->dest;
+ pDest->next_output_byte = pDest->m_pBuffer;
+ pDest->free_in_buffer = eBufSize;
+ }
+
+ static boolean EmptyOutputBuffer(j_compress_ptr cinfo)
+ {
+ CxFileJpg* pDest = (CxFileJpg*)cinfo->dest;
+ if (pDest->m_pFile->Write(pDest->m_pBuffer,1,eBufSize)!=(size_t)eBufSize)
+ ERREXIT(cinfo, JERR_FILE_WRITE);
+ pDest->next_output_byte = pDest->m_pBuffer;
+ pDest->free_in_buffer = eBufSize;
+ return TRUE;
+ }
+
+ static void TermDestination(j_compress_ptr cinfo)
+ {
+ CxFileJpg* pDest = (CxFileJpg*)cinfo->dest;
+ size_t datacount = eBufSize - pDest->free_in_buffer;
+ /* Write any data remaining in the buffer */
+ if (datacount > 0) {
+ if (!pDest->m_pFile->Write(pDest->m_pBuffer,1,datacount))
+ ERREXIT(cinfo, JERR_FILE_WRITE);
+ }
+ pDest->m_pFile->Flush();
+ /* Make sure we wrote the output file OK */
+ if (pDest->m_pFile->Error()) ERREXIT(cinfo, JERR_FILE_WRITE);
+ return;
+ }
+
+ static void InitSource(j_decompress_ptr cinfo)
+ {
+ CxFileJpg* pSource = (CxFileJpg*)cinfo->src;
+ pSource->m_bStartOfFile = TRUE;
+ }
+
+ static boolean FillInputBuffer(j_decompress_ptr cinfo)
+ {
+ size_t nbytes;
+ CxFileJpg* pSource = (CxFileJpg*)cinfo->src;
+ nbytes = pSource->m_pFile->Read(pSource->m_pBuffer,1,eBufSize);
+ if (nbytes <= 0){
+ if (pSource->m_bStartOfFile) //* Treat empty input file as fatal error
+ ERREXIT(cinfo, JERR_INPUT_EMPTY);
+ WARNMS(cinfo, JWRN_JPEG_EOF);
+ // Insert a fake EOI marker
+ pSource->m_pBuffer[0] = (JOCTET) 0xFF;
+ pSource->m_pBuffer[1] = (JOCTET) JPEG_EOI;
+ nbytes = 2;
+ }
+ pSource->next_input_byte = pSource->m_pBuffer;
+ pSource->bytes_in_buffer = nbytes;
+ pSource->m_bStartOfFile = FALSE;
+ return TRUE;
+ }
+
+ static void SkipInputData(j_decompress_ptr cinfo, long num_bytes)
+ {
+ CxFileJpg* pSource = (CxFileJpg*)cinfo->src;
+ if (num_bytes > 0){
+ while (num_bytes > (int32_t)pSource->bytes_in_buffer){
+ num_bytes -= (int32_t)pSource->bytes_in_buffer;
+ FillInputBuffer(cinfo);
+ // note we assume that fill_input_buffer will never return FALSE,
+ // so suspension need not be handled.
+ }
+ pSource->next_input_byte += (size_t) num_bytes;
+ pSource->bytes_in_buffer -= (size_t) num_bytes;
+ }
+ }
+
+ static void TermSource(j_decompress_ptr /*cinfo*/)
+ {
+ return;
+ }
+protected:
+ CxFile *m_pFile;
+ uint8_t *m_pBuffer;
+ bool m_bStartOfFile;
+};
+
+public:
+ enum CODEC_OPTION
+ {
+ ENCODE_BASELINE = 0x1,
+ ENCODE_ARITHMETIC = 0x2,
+ ENCODE_GRAYSCALE = 0x4,
+ ENCODE_OPTIMIZE = 0x8,
+ ENCODE_PROGRESSIVE = 0x10,
+ ENCODE_LOSSLESS = 0x20,
+ ENCODE_SMOOTHING = 0x40,
+ DECODE_GRAYSCALE = 0x80,
+ DECODE_QUANTIZE = 0x100,
+ DECODE_DITHER = 0x200,
+ DECODE_ONEPASS = 0x400,
+ DECODE_NOSMOOTH = 0x800,
+ ENCODE_SUBSAMPLE_422 = 0x1000,
+ ENCODE_SUBSAMPLE_444 = 0x2000
+ };
+
+ int32_t m_nPredictor;
+ int32_t m_nPointTransform;
+ int32_t m_nSmoothing;
+ int32_t m_nQuantize;
+ J_DITHER_MODE m_nDither;
+
+};
+
+#endif
+
+#endif
diff --git a/smelt/sdl/CxImage/ximalpha.cpp b/smelt/sdl/CxImage/ximalpha.cpp new file mode 100644 index 0000000..2932068 --- /dev/null +++ b/smelt/sdl/CxImage/ximalpha.cpp @@ -0,0 +1,367 @@ +// xImalpha.cpp : Alpha channel functions
+/* 07/08/2001 v1.00 - Davide Pizzolato - www.xdp.it
+ * CxImage version 7.0.0 31/Dec/2010
+ */
+
+#include "ximage.h"
+
+#if CXIMAGE_SUPPORT_ALPHA
+
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * \sa AlphaSetMax
+ */
+uint8_t CxImage::AlphaGetMax() const
+{
+ return info.nAlphaMax;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Sets global Alpha (opacity) value applied to the whole image,
+ * valid only for painting functions.
+ * \param nAlphaMax: can be from 0 to 255
+ */
+void CxImage::AlphaSetMax(uint8_t nAlphaMax)
+{
+ info.nAlphaMax=nAlphaMax;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Checks if the image has a valid alpha channel.
+ */
+bool CxImage::AlphaIsValid()
+{
+ return pAlpha!=0;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Enables the alpha palette, so the Draw() function changes its behavior.
+ */
+void CxImage::AlphaPaletteEnable(bool enable)
+{
+ info.bAlphaPaletteEnabled=enable;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * True if the alpha palette is enabled for painting.
+ */
+bool CxImage::AlphaPaletteIsEnabled()
+{
+ return info.bAlphaPaletteEnabled;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Sets the alpha channel to full transparent. AlphaSet(0) has the same effect
+ */
+void CxImage::AlphaClear()
+{
+ if (pAlpha) memset(pAlpha,0,head.biWidth * head.biHeight);
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Sets the alpha level for the whole image.
+ * \param level : from 0 (transparent) to 255 (opaque)
+ */
+void CxImage::AlphaSet(uint8_t level)
+{
+ if (pAlpha) memset(pAlpha,level,head.biWidth * head.biHeight);
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Allocates an empty (opaque) alpha channel.
+ */
+bool CxImage::AlphaCreate()
+{
+ if (pAlpha==NULL) {
+ pAlpha = (uint8_t*)malloc(head.biWidth * head.biHeight);
+ if (pAlpha) memset(pAlpha,255,head.biWidth * head.biHeight);
+ }
+ return (pAlpha!=0);
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImage::AlphaDelete()
+{
+ if (pAlpha) { free(pAlpha); pAlpha=0; }
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImage::AlphaInvert()
+{
+ if (pAlpha) {
+ uint8_t *iSrc=pAlpha;
+ int32_t n=head.biHeight*head.biWidth;
+ for(int32_t i=0; i < n; i++){
+ *iSrc=(uint8_t)~(*(iSrc));
+ iSrc++;
+ }
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Imports an existing alpa channel from another image with the same width and height.
+ */
+bool CxImage::AlphaCopy(CxImage &from)
+{
+ if (from.pAlpha == NULL || head.biWidth != from.head.biWidth || head.biHeight != from.head.biHeight) return false;
+ if (pAlpha==NULL) pAlpha = (uint8_t*)malloc(head.biWidth * head.biHeight);
+ if (pAlpha==NULL) return false;
+ memcpy(pAlpha,from.pAlpha,head.biWidth * head.biHeight);
+ info.nAlphaMax=from.info.nAlphaMax;
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Creates the alpha channel from a gray scale image.
+ */
+bool CxImage::AlphaSet(CxImage &from)
+{
+ if (!from.IsGrayScale() || head.biWidth != from.head.biWidth || head.biHeight != from.head.biHeight) return false;
+ if (pAlpha==NULL) pAlpha = (uint8_t*)malloc(head.biWidth * head.biHeight);
+ uint8_t* src = from.info.pImage;
+ uint8_t* dst = pAlpha;
+ if (src==NULL || dst==NULL) return false;
+ for (int32_t y=0; y<head.biHeight; y++){
+ memcpy(dst,src,head.biWidth);
+ dst += head.biWidth;
+ src += from.info.dwEffWidth;
+ }
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Sets the alpha level for a single pixel
+ */
+void CxImage::AlphaSet(const int32_t x,const int32_t y,const uint8_t level)
+{
+ if (pAlpha && IsInside(x,y)) pAlpha[x+y*head.biWidth]=level;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Gets the alpha level for a single pixel
+ */
+uint8_t CxImage::AlphaGet(const int32_t x,const int32_t y)
+{
+ if (pAlpha && IsInside(x,y)) return pAlpha[x+y*head.biWidth];
+ return 0;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Returns pointer to alpha data for pixel (x,y).
+ *
+ * \author ***bd*** 2.2004
+ */
+uint8_t* CxImage::AlphaGetPointer(const int32_t x,const int32_t y)
+{
+ if (pAlpha && IsInside(x,y)) return pAlpha+x+y*head.biWidth;
+ return 0;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Get alpha value without boundscheck (a bit faster). Pixel must be inside the image.
+ *
+ * \author ***bd*** 2.2004
+ */
+uint8_t CxImage::BlindAlphaGet(const int32_t x,const int32_t y)
+{
+#ifdef _DEBUG
+ if (!IsInside(x,y) || (pAlpha==0))
+ #if CXIMAGE_SUPPORT_EXCEPTION_HANDLING
+ throw 0;
+ #else
+ return 0;
+ #endif
+#endif
+ return pAlpha[x+y*head.biWidth];
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Resets the alpha palette
+ */
+void CxImage::AlphaPaletteClear()
+{
+ RGBQUAD c;
+ for(uint16_t ip=0; ip<head.biClrUsed;ip++){
+ c=GetPaletteColor((uint8_t)ip);
+ c.rgbReserved=0;
+ SetPaletteColor((uint8_t)ip,c);
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Checks if the image has a valid alpha palette.
+ */
+bool CxImage::AlphaPaletteIsValid()
+{
+ RGBQUAD c;
+ for(uint16_t ip=0; ip<head.biClrUsed;ip++){
+ c=GetPaletteColor((uint8_t)ip);
+ if (c.rgbReserved != 0) return true;
+ }
+ return false;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Blends the alpha channel and the alpha palette with the pixels. The result is a 24 bit image.
+ * The background color can be selected using SetTransColor().
+ */
+void CxImage::AlphaStrip()
+{
+ bool bAlphaPaletteIsValid = AlphaPaletteIsValid();
+ bool bAlphaIsValid = AlphaIsValid();
+ if (!(bAlphaIsValid || bAlphaPaletteIsValid)) return;
+ RGBQUAD c;
+ int32_t a, a1;
+ if (head.biBitCount==24){
+ for(int32_t y=0; y<head.biHeight; y++){
+ for(int32_t x=0; x<head.biWidth; x++){
+ c = BlindGetPixelColor(x,y);
+ if (bAlphaIsValid) a=(BlindAlphaGet(x,y)*info.nAlphaMax)/255; else a=info.nAlphaMax;
+ a1 = 256-a;
+ c.rgbBlue = (uint8_t)((c.rgbBlue * a + a1 * info.nBkgndColor.rgbBlue)>>8);
+ c.rgbGreen = (uint8_t)((c.rgbGreen * a + a1 * info.nBkgndColor.rgbGreen)>>8);
+ c.rgbRed = (uint8_t)((c.rgbRed * a + a1 * info.nBkgndColor.rgbRed)>>8);
+ BlindSetPixelColor(x,y,c);
+ }
+ }
+ AlphaDelete();
+ } else {
+ CxImage tmp(head.biWidth,head.biHeight,24);
+ if (!tmp.IsValid()){
+ strcpy(info.szLastError,tmp.GetLastError());
+ return;
+ }
+
+ for(int32_t y=0; y<head.biHeight; y++){
+ for(int32_t x=0; x<head.biWidth; x++){
+ c = BlindGetPixelColor(x,y);
+ if (bAlphaIsValid) a=(BlindAlphaGet(x,y)*info.nAlphaMax)/255; else a=info.nAlphaMax;
+ if (bAlphaPaletteIsValid) a=(c.rgbReserved*a)/255;
+ a1 = 256-a;
+ c.rgbBlue = (uint8_t)((c.rgbBlue * a + a1 * info.nBkgndColor.rgbBlue)>>8);
+ c.rgbGreen = (uint8_t)((c.rgbGreen * a + a1 * info.nBkgndColor.rgbGreen)>>8);
+ c.rgbRed = (uint8_t)((c.rgbRed * a + a1 * info.nBkgndColor.rgbRed)>>8);
+ tmp.BlindSetPixelColor(x,y,c);
+ }
+ }
+ Transfer(tmp);
+ }
+ return;
+}
+////////////////////////////////////////////////////////////////////////////////
+bool CxImage::AlphaFlip()
+{
+ if (!pAlpha) return false;
+
+ uint8_t *buff = (uint8_t*)malloc(head.biWidth);
+ if (!buff) return false;
+
+ uint8_t *iSrc,*iDst;
+ iSrc = pAlpha + (head.biHeight-1)*head.biWidth;
+ iDst = pAlpha;
+ for (int32_t i=0; i<(head.biHeight/2); ++i)
+ {
+ memcpy(buff, iSrc, head.biWidth);
+ memcpy(iSrc, iDst, head.biWidth);
+ memcpy(iDst, buff, head.biWidth);
+ iSrc-=head.biWidth;
+ iDst+=head.biWidth;
+ }
+
+ free(buff);
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+bool CxImage::AlphaMirror()
+{
+ if (!pAlpha) return false;
+ uint8_t* pAlpha2 = (uint8_t*)malloc(head.biWidth * head.biHeight);
+ if (!pAlpha2) return false;
+ uint8_t *iSrc,*iDst;
+ int32_t wdt=head.biWidth-1;
+ iSrc=pAlpha + wdt;
+ iDst=pAlpha2;
+ for(int32_t y=0; y < head.biHeight; y++){
+ for(int32_t x=0; x <= wdt; x++)
+ *(iDst+x)=*(iSrc-x);
+ iSrc+=head.biWidth;
+ iDst+=head.biWidth;
+ }
+ free(pAlpha);
+ pAlpha=pAlpha2;
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Exports the alpha channel in a 8bpp grayscale image.
+ */
+bool CxImage::AlphaSplit(CxImage *dest)
+{
+ if (!pAlpha || !dest) return false;
+
+ CxImage tmp(head.biWidth,head.biHeight,8);
+ if (!tmp.IsValid()){
+ strcpy(info.szLastError,tmp.GetLastError());
+ return false;
+ }
+
+ uint8_t* src = pAlpha;
+ uint8_t* dst = tmp.info.pImage;
+ for (int32_t y=0; y<head.biHeight; y++){
+ memcpy(dst,src,head.biWidth);
+ dst += tmp.info.dwEffWidth;
+ src += head.biWidth;
+ }
+
+ tmp.SetGrayPalette();
+ dest->Transfer(tmp);
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Exports the alpha palette channel in a 8bpp grayscale image.
+ */
+bool CxImage::AlphaPaletteSplit(CxImage *dest)
+{
+ if (!AlphaPaletteIsValid() || !dest) return false;
+
+ CxImage tmp(head.biWidth,head.biHeight,8);
+ if (!tmp.IsValid()){
+ strcpy(info.szLastError,tmp.GetLastError());
+ return false;
+ }
+
+ for(int32_t y=0; y<head.biHeight; y++){
+ for(int32_t x=0; x<head.biWidth; x++){
+ tmp.BlindSetPixelIndex(x,y,BlindGetPixelColor(x,y).rgbReserved);
+ }
+ }
+
+ tmp.SetGrayPalette();
+ dest->Transfer(tmp);
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Merge in the alpha layer the transparent color mask
+ * (previously set with SetTransColor or SetTransIndex)
+ */
+bool CxImage::AlphaFromTransparency()
+{
+ if (!IsValid() || !IsTransparent())
+ return false;
+
+ AlphaCreate();
+
+ for(int32_t y=0; y<head.biHeight; y++){
+ for(int32_t x=0; x<head.biWidth; x++){
+ if (IsTransparent(x,y)){
+ AlphaSet(x,y,0);
+ }
+ }
+ }
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+#endif //CXIMAGE_SUPPORT_ALPHA
diff --git a/smelt/sdl/CxImage/ximalyr.cpp b/smelt/sdl/CxImage/ximalyr.cpp new file mode 100644 index 0000000..23dc226 --- /dev/null +++ b/smelt/sdl/CxImage/ximalyr.cpp @@ -0,0 +1,116 @@ +// xImaLyr.cpp : Layers functions
+/* 21/04/2003 v1.00 - Davide Pizzolato - www.xdp.it
+ * CxImage version 7.0.0 31/Dec/2010
+ */
+
+#include "ximage.h"
+
+#if CXIMAGE_SUPPORT_LAYERS
+
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * If the object is an internal layer, GetParent return its parent in the hierarchy.
+ */
+CxImage* CxImage::GetParent() const
+{
+ return info.pParent;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Number of layers allocated directly by the object.
+ */
+int32_t CxImage::GetNumLayers() const
+{
+ return info.nNumLayers;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Creates an empty layer. If position is less than 0, the new layer will be placed in the last position
+ */
+bool CxImage::LayerCreate(int32_t position)
+{
+ if ( position < 0 || position > info.nNumLayers ) position = info.nNumLayers;
+
+ CxImage** ptmp = new CxImage*[info.nNumLayers + 1];
+ if (ptmp==0) return false;
+
+ int32_t i=0;
+ for (int32_t n=0; n<info.nNumLayers; n++){
+ if (position == n){
+ ptmp[n] = new CxImage();
+ i=1;
+ }
+ ptmp[n+i]=ppLayers[n];
+ }
+ if (i==0) ptmp[info.nNumLayers] = new CxImage();
+
+ if (ptmp[position]){
+ ptmp[position]->info.pParent = this;
+ } else {
+ free(ptmp);
+ return false;
+ }
+
+ info.nNumLayers++;
+ delete [] ppLayers;
+ ppLayers = ptmp;
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Deletes a layer. If position is less than 0, the last layer will be deleted
+ */
+bool CxImage::LayerDelete(int32_t position)
+{
+ if ( position >= info.nNumLayers ) return false;
+ if ( position < 0) position = info.nNumLayers - 1;
+ if ( position < 0) return false;
+
+ if (info.nNumLayers>1){
+
+ CxImage** ptmp = new CxImage*[info.nNumLayers - 1];
+ if (ptmp==0) return false;
+
+ int32_t i=0;
+ for (int32_t n=0; n<info.nNumLayers; n++){
+ if (position == n){
+ delete ppLayers[n];
+ i=1;
+ }
+ ptmp[n]=ppLayers[n+i];
+ }
+
+ info.nNumLayers--;
+ delete [] ppLayers;
+ ppLayers = ptmp;
+
+ } else {
+ delete ppLayers[0];
+ delete [] ppLayers;
+ ppLayers = 0;
+ info.nNumLayers = 0;
+ }
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImage::LayerDeleteAll()
+{
+ if (ppLayers) {
+ for(int32_t n=0; n<info.nNumLayers;n++){ delete ppLayers[n]; }
+ delete [] ppLayers; ppLayers=0; info.nNumLayers = 0;
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Returns a pointer to a layer. If position is less than 0, the last layer will be returned
+ */
+CxImage* CxImage::GetLayer(int32_t position)
+{
+ if ( ppLayers == NULL) return NULL;
+ if ( info.nNumLayers == 0) return NULL;
+ if ( position >= info.nNumLayers ) return NULL;
+ if ( position < 0) position = info.nNumLayers - 1;
+ return ppLayers[position];
+}
+////////////////////////////////////////////////////////////////////////////////
+#endif //CXIMAGE_SUPPORT_LAYERS
diff --git a/smelt/sdl/CxImage/ximamng.cpp b/smelt/sdl/CxImage/ximamng.cpp new file mode 100644 index 0000000..d5ea82e --- /dev/null +++ b/smelt/sdl/CxImage/ximamng.cpp @@ -0,0 +1,430 @@ +/*
+ * File: ximamng.cpp
+ * Purpose: Platform Independent MNG Image Class Loader and Writer
+ * Author: 07/Aug/2001 Davide Pizzolato - www.xdp.it
+ * CxImage version 7.0.0 31/Dec/2010
+ */
+
+#include "ximamng.h"
+
+#if CXIMAGE_SUPPORT_MNG
+
+////////////////////////////////////////////////////////////////////////////////
+// callbacks for the mng decoder:
+////////////////////////////////////////////////////////////////////////////////
+
+////////////////////////////////////////////////////////////////////////////////
+// memory allocation; data must be zeroed
+static mng_ptr
+mymngalloc( mng_size_t size )
+{
+ return (mng_ptr)calloc(1, size);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// memory deallocation
+static void mymngfree(mng_ptr p, mng_size_t size)
+{
+ free(p);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Stream open/close:
+// since the user is responsible for opening and closing the file,
+// we leave the default implementation open
+static mng_bool mymngopenstream(mng_handle mng) { return MNG_TRUE; }
+static mng_bool mymngopenstreamwrite(mng_handle mng) { return MNG_TRUE; }
+static mng_bool mymngclosestream(mng_handle mng) { return MNG_TRUE; }
+
+////////////////////////////////////////////////////////////////////////////////
+// feed data to the decoder
+static mng_bool mymngreadstream(mng_handle mng, mng_ptr buffer, mng_uint32 size, mng_uint32 *bytesread)
+{
+ mngstuff *mymng = (mngstuff *)mng_get_userdata(mng);
+ // read the requested amount of data from the file
+ *bytesread = mymng->file->Read( buffer, sizeof(uint8_t), size);
+ return MNG_TRUE;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+static mng_bool mymngwritestream (mng_handle mng, mng_ptr pBuf, mng_uint32 iSize, mng_uint32 *iWritten)
+{
+ mngstuff *mymng = (mngstuff *)mng_get_userdata(mng);
+ // write it
+ *iWritten = mymng->file->Write (pBuf, 1, iSize);
+ return MNG_TRUE;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// the header's been read. set up the display stuff
+static mng_bool mymngprocessheader( mng_handle mng, mng_uint32 width, mng_uint32 height )
+{
+ // normally the image buffer is allocated here,
+ // but in this module we don't know nothing about
+ // the final environment.
+
+ mngstuff *mymng = (mngstuff *)mng_get_userdata(mng);
+
+ mymng->width = width;
+ mymng->height = height;
+ mymng->bpp = 24;
+ mymng->effwdt = ((((width * mymng->bpp) + 31) >> 5) << 2);
+
+ if (mng->bUseBKGD){
+ mymng->nBkgndIndex = 0;
+ mymng->nBkgndColor.rgbRed = mng->iBGred >> 8;
+ mymng->nBkgndColor.rgbGreen =mng->iBGgreen >> 8;
+ mymng->nBkgndColor.rgbBlue = mng->iBGblue >> 8;
+ }
+
+ mymng->image = (uint8_t*)malloc(height * mymng->effwdt);
+
+ // tell the mng decoder about our bit-depth choice
+#if CXIMAGE_SUPPORT_ALPHA
+ mng_set_canvasstyle( mng, MNG_CANVAS_RGB8_A8 );
+ mymng->alpha = (uint8_t*)malloc(height * width);
+#else
+ mng_set_canvasstyle( mng, MNG_CANVAS_BGR8);
+ mymng->alpha = NULL;
+#endif
+ return MNG_TRUE;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// return a row pointer for the decoder to fill
+static mng_ptr mymnggetcanvasline( mng_handle mng, mng_uint32 line )
+{
+ mngstuff *mymng = (mngstuff *)mng_get_userdata(mng);
+ return (mng_ptr)(mymng->image + (mymng->effwdt * (mymng->height - 1 - line)));
+}
+////////////////////////////////////////////////////////////////////////////////
+// return a row pointer for the decoder to fill for alpha channel
+static mng_ptr mymnggetalphaline( mng_handle mng, mng_uint32 line )
+{
+ mngstuff *mymng = (mngstuff *)mng_get_userdata(mng);
+ return (mng_ptr)(mymng->alpha + (mymng->width * (mymng->height - 1 - line)));
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// timer
+static mng_uint32 mymnggetticks(mng_handle mng)
+{
+#ifdef WIN32
+ return (mng_uint32)GetTickCount();
+#else
+ return 0;
+#endif
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Refresh: actual frame need to be updated (Invalidate)
+static mng_bool mymngrefresh(mng_handle mng, mng_uint32 x, mng_uint32 y, mng_uint32 w, mng_uint32 h)
+{
+// mngstuff *mymng = (mngstuff *)mng_get_userdata(mng);
+ return MNG_TRUE;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// interframe delay callback
+static mng_bool mymngsettimer(mng_handle mng, mng_uint32 msecs)
+{
+ mngstuff *mymng = (mngstuff *)mng_get_userdata(mng);
+ mymng->delay = msecs; // set the timer for when the decoder wants to be woken
+ return MNG_TRUE;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+static mng_bool mymngerror(mng_handle mng, mng_int32 code, mng_int8 severity, mng_chunkid chunktype, mng_uint32 chunkseq, mng_int32 extra1, mng_int32 extra2, mng_pchar text)
+{
+ return mng_cleanup(&mng); //<Arkadiy Olovyannikov>
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// CxImage members
+////////////////////////////////////////////////////////////////////////////////
+CxImageMNG::CxImageMNG(): CxImage(CXIMAGE_FORMAT_MNG)
+{
+ hmng = NULL;
+ memset(&mnginfo,0,sizeof(mngstuff));
+ mnginfo.nBkgndIndex = -1;
+ mnginfo.speed = 1.0f;
+}
+////////////////////////////////////////////////////////////////////////////////
+CxImageMNG::~CxImageMNG()
+{
+ // cleanup and return
+ if (mnginfo.thread){ //close the animation thread
+ mnginfo.animation_enabled=0;
+ ResumeThread(mnginfo.thread);
+ WaitForSingleObject(mnginfo.thread,500);
+ CloseHandle(mnginfo.thread);
+ }
+ // free objects
+ if (mnginfo.image) free(mnginfo.image);
+ if (mnginfo.alpha) free(mnginfo.alpha);
+ if (hmng) mng_cleanup(&hmng); //be sure it's not needed any more. (active timers ?)
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImageMNG::SetCallbacks(mng_handle mng)
+{
+ // set the callbacks
+ mng_setcb_errorproc(mng, mymngerror);
+ mng_setcb_openstream(mng, mymngopenstream);
+ mng_setcb_closestream(mng, mymngclosestream);
+ mng_setcb_readdata(mng, mymngreadstream);
+ mng_setcb_processheader(mng, mymngprocessheader);
+ mng_setcb_getcanvasline(mng, mymnggetcanvasline);
+ mng_setcb_refresh(mng, mymngrefresh);
+ mng_setcb_gettickcount(mng, mymnggetticks);
+ mng_setcb_settimer(mng, mymngsettimer);
+ mng_setcb_refresh(mng, mymngrefresh);
+ mng_setcb_getalphaline(mng, mymnggetalphaline);
+}
+////////////////////////////////////////////////////////////////////////////////
+// can't use the CxImage implementation because it looses mnginfo
+bool CxImageMNG::Load(const TCHAR * imageFileName){
+ FILE* hFile; //file handle to read the image
+#ifdef WIN32
+ if ((hFile=_tfopen(imageFileName,_T("rb")))==NULL) return false; // For UNICODE support
+#else
+ if ((hFile=fopen(imageFileName,"rb"))==NULL) return false;
+#endif
+ bool bOK = Decode(hFile);
+ fclose(hFile);
+ return bOK;
+}
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_SUPPORT_DECODE
+////////////////////////////////////////////////////////////////////////////////
+bool CxImageMNG::Decode(CxFile *hFile)
+{
+ if (hFile == NULL) return false;
+
+ cx_try
+ {
+ // set up the mng decoder for our stream
+ hmng = mng_initialize(&mnginfo, (mng_memalloc)mymngalloc, (mng_memfree)mymngfree, MNG_NULL);
+ if (hmng == NULL) cx_throw("could not initialize libmng");
+
+ // set the file we want to play
+ mnginfo.file = hFile;
+
+ // Set the colorprofile, lcms uses this:
+ mng_set_srgb(hmng, MNG_TRUE );
+ // Set white as background color:
+ uint16_t Red,Green,Blue;
+ Red = Green = Blue = (255 << 8) + 255;
+ mng_set_bgcolor(hmng, Red, Green, Blue );
+ // If PNG Background is available, use it:
+ mng_set_usebkgd(hmng, MNG_TRUE );
+
+ // No need to store chunks:
+ mng_set_storechunks(hmng, MNG_FALSE);
+ // No need to wait: straight reading
+ mng_set_suspensionmode(hmng, MNG_FALSE);
+
+ SetCallbacks(hmng);
+
+ mng_datap pData = (mng_datap)hmng;
+
+ // read in the image
+ info.nNumFrames=0;
+ int32_t retval=MNG_NOERROR;
+
+ retval = mng_readdisplay(hmng);
+
+ if (retval != MNG_NOERROR && retval != MNG_NEEDTIMERWAIT){
+ mng_store_error(hmng,retval,0,0);
+ if (hmng->zErrortext){
+ cx_throw(hmng->zErrortext);
+ } else {
+ cx_throw("Error in MNG file");
+ }
+ }
+
+ if (info.nEscape == -1) {
+ // Return output dimensions only
+ head.biWidth = hmng->iWidth;
+ head.biHeight = hmng->iHeight;
+ info.dwType = CXIMAGE_FORMAT_MNG;
+ return true;
+ }
+
+ // read all
+ while(pData->bReading){
+ retval = mng_display_resume(hmng);
+ info.nNumFrames++;
+ }
+
+ // single frame check:
+ if (retval != MNG_NEEDTIMERWAIT){
+ info.nNumFrames--;
+ } else {
+ mnginfo.animation=1;
+ }
+
+ if (info.nNumFrames<=0) info.nNumFrames=1;
+
+ if (mnginfo.animation_enabled==0){
+ // select the frame
+ if (info.nFrame>=0 && info.nFrame<info.nNumFrames){
+ for (int32_t n=0;n<info.nFrame;n++) mng_display_resume(hmng);
+ } else cx_throw("Error: frame not present in MNG file");
+ }
+
+ if (mnginfo.nBkgndIndex >= 0){
+ info.nBkgndIndex = mnginfo.nBkgndIndex;
+ info.nBkgndColor.rgbRed = mnginfo.nBkgndColor.rgbRed;
+ info.nBkgndColor.rgbGreen = mnginfo.nBkgndColor.rgbGreen;
+ info.nBkgndColor.rgbBlue = mnginfo.nBkgndColor.rgbBlue;
+ }
+
+ //store the newly created image
+ if (Create(mnginfo.width,mnginfo.height,mnginfo.bpp, CXIMAGE_FORMAT_MNG)){
+ memcpy(GetBits(), mnginfo.image, info.dwEffWidth * head.biHeight);
+#if CXIMAGE_SUPPORT_ALPHA
+ SwapRGB2BGR();
+ AlphaCreate();
+ if(AlphaIsValid() && mnginfo.alpha){
+ memcpy(AlphaGetPointer(),mnginfo.alpha,mnginfo.width * mnginfo.height);
+ }
+#endif
+ } else cx_throw("CxImageMNG::Decode cannot create image");
+
+
+ } cx_catch {
+ if (strcmp(message,"")) strncpy(info.szLastError,message,255);
+ return false;
+ }
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+#endif //CXIMAGE_SUPPORT_DECODE
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_SUPPORT_ENCODE
+////////////////////////////////////////////////////////////////////////////////
+bool CxImageMNG::Encode(CxFile *hFile)
+{
+ if (EncodeSafeCheck(hFile)) return false;
+
+ cx_try
+ {
+ if (head.biClrUsed != 0) cx_throw("MNG encoder can save only RGB images");
+ // set the file we want to play
+ mnginfo.file = hFile;
+ mnginfo.bpp = head.biBitCount;
+ mnginfo.effwdt = info.dwEffWidth;
+ mnginfo.height = head.biHeight;
+ mnginfo.width = head.biWidth;
+
+ mnginfo.image = (uint8_t*)malloc(head.biSizeImage);
+ if (mnginfo.image == NULL) cx_throw("could not allocate memory for MNG");
+ memcpy(mnginfo.image,info.pImage, head.biSizeImage);
+
+ // set up the mng decoder for our stream
+ hmng = mng_initialize(&mnginfo, (mng_memalloc)mymngalloc, (mng_memfree)mymngfree, MNG_NULL);
+ if (hmng == NULL) cx_throw("could not initialize libmng");
+
+ mng_setcb_openstream(hmng, mymngopenstreamwrite );
+ mng_setcb_closestream(hmng, mymngclosestream);
+ mng_setcb_writedata(hmng, mymngwritestream);
+
+ // Write File:
+ mng_create(hmng);
+ // Just a single Frame (save a normal PNG):
+ WritePNG(hmng, 0, 1 );
+ // Now write file:
+ mng_write(hmng);
+
+ } cx_catch {
+ if (strcmp(message,"")) strncpy(info.szLastError,message,255);
+ return false;
+ }
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+// Writes a single PNG datastream
+void CxImageMNG::WritePNG( mng_handle hMNG, int32_t Frame, int32_t FrameCount )
+{
+ mngstuff *mymng = (mngstuff *)mng_get_userdata(hMNG);
+
+ int32_t OffsetX=0,OffsetY=0,OffsetW=mymng->width,OffsetH=mymng->height;
+
+ uint8_t *tmpbuffer = new uint8_t[ (mymng->effwdt+1) * mymng->height];
+ if( tmpbuffer == 0 ) return;
+
+ // Write DEFI chunk.
+ mng_putchunk_defi( hMNG, 0, 0, 0, MNG_TRUE, OffsetX, OffsetY, MNG_FALSE, 0, 0, 0, 0 );
+
+ // Write Header:
+ mng_putchunk_ihdr(
+ hMNG,
+ OffsetW, OffsetH,
+ MNG_BITDEPTH_8,
+ MNG_COLORTYPE_RGB,
+ MNG_COMPRESSION_DEFLATE,
+ MNG_FILTER_ADAPTIVE,
+ MNG_INTERLACE_NONE
+ );
+
+ // transfer data, add Filterbyte:
+ for( int32_t Row=0; Row<OffsetH; Row++ ){
+ // First Byte in each Scanline is Filterbyte: Currently 0 -> No Filter.
+ tmpbuffer[Row*(mymng->effwdt+1)]=0;
+ // Copy the scanline: (reverse order)
+ memcpy(tmpbuffer+Row*(mymng->effwdt+1)+1,
+ mymng->image+((OffsetH-1-(OffsetY+Row))*(mymng->effwdt))+OffsetX,mymng->effwdt);
+ // swap red and blue components
+ RGBtoBGR(tmpbuffer+Row*(mymng->effwdt+1)+1,mymng->effwdt);
+ }
+
+ // Compress data with ZLib (Deflate):
+ uint8_t *dstbuffer = new uint8_t[(mymng->effwdt+1)*OffsetH];
+ if( dstbuffer == 0 ) return;
+ uint32_t dstbufferSize=(mymng->effwdt+1)*OffsetH;
+
+ // Compress data:
+ if(Z_OK != compress2((Bytef *)dstbuffer,(ULONG *)&dstbufferSize,(const Bytef*)tmpbuffer,
+ (ULONG) (mymng->effwdt+1)*OffsetH,9 )) return;
+
+ // Write Data into MNG File:
+ mng_putchunk_idat( hMNG, dstbufferSize, (mng_ptr*)dstbuffer);
+ mng_putchunk_iend(hMNG);
+
+ // Free the stuff:
+ delete [] tmpbuffer;
+ delete [] dstbuffer;
+}
+////////////////////////////////////////////////////////////////////////////////
+int32_t CxImageMNG::Resume()
+{
+ if (MNG_NEEDTIMERWAIT == mng_display_resume(hmng)){
+ if (info.pImage==NULL){
+ Create(mnginfo.width,mnginfo.height,mnginfo.bpp, CXIMAGE_FORMAT_MNG);
+ }
+ if (IsValid()){
+ memcpy(GetBits(), mnginfo.image, info.dwEffWidth * head.biHeight);
+#if CXIMAGE_SUPPORT_ALPHA
+ SwapRGB2BGR();
+ AlphaCreate();
+ if(AlphaIsValid() && mnginfo.alpha){
+ memcpy(AlphaGetPointer(),mnginfo.alpha,mnginfo.width * mnginfo.height);
+ }
+#endif
+ }
+ } else {
+ mnginfo.animation_enabled = 0;
+ }
+ return mnginfo.animation_enabled;
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImageMNG::SetSpeed(float speed)
+{
+ if (speed>10.0) mnginfo.speed = 10.0f;
+ else if (speed<0.1) mnginfo.speed = 0.1f;
+ else mnginfo.speed=speed;
+}
+////////////////////////////////////////////////////////////////////////////////
+#endif //CXIMAGE_SUPPORT_ENCODE
+////////////////////////////////////////////////////////////////////////////////
+#endif // CXIMAGE_SUPPORT_MNG
diff --git a/smelt/sdl/CxImage/ximamng.h b/smelt/sdl/CxImage/ximamng.h new file mode 100644 index 0000000..9466fc2 --- /dev/null +++ b/smelt/sdl/CxImage/ximamng.h @@ -0,0 +1,88 @@ +/*
+ * File: ximamng.h
+ * Purpose: Declaration of the MNG Image Class
+ * Author: Davide Pizzolato - www.xdp.it
+ * Created: 2001
+ */
+/* ==========================================================
+ * CxImageMNG (c) 07/Aug/2001 Davide Pizzolato - www.xdp.it
+ * For conditions of distribution and use, see copyright notice in ximage.h
+ *
+ * Special thanks to Frank Haug <f.haug(at)jdm(dot)de> for suggestions and code.
+ *
+ * original mng.cpp code created by Nikolaus Brennig, November 14th, 2000. <virtualnik(at)nol(dot)at>
+ *
+ * LIBMNG Copyright (c) 2000,2001 Gerard Juyn (gerard@libmng.com)
+ * ==========================================================
+ */
+
+#if !defined(__ximaMNG_h)
+#define __ximaMNG_h
+
+#include "ximage.h"
+
+#if CXIMAGE_SUPPORT_MNG
+
+//#define MNG_NO_CMS
+#define MNG_SUPPORT_DISPLAY
+#define MNG_SUPPORT_READ
+#define MNG_SUPPORT_WRITE
+#define MNG_ACCESS_CHUNKS
+#define MNG_STORE_CHUNKS
+
+extern "C" {
+#include "../mng/libmng.h"
+#include "../mng/libmng_data.h"
+#include "../mng/libmng_error.h"
+}
+
+//uint32_t _stdcall RunMNGThread(void *lpParam);
+
+typedef struct tagmngstuff
+{
+ CxFile *file;
+ uint8_t *image;
+ uint8_t *alpha;
+ HANDLE thread;
+ mng_uint32 delay;
+ mng_uint32 width;
+ mng_uint32 height;
+ mng_uint32 effwdt;
+ mng_int16 bpp;
+ mng_bool animation;
+ mng_bool animation_enabled;
+ float speed;
+ int32_t nBkgndIndex;
+ RGBQUAD nBkgndColor;
+} mngstuff;
+
+class CxImageMNG: public CxImage
+{
+public:
+ CxImageMNG();
+ ~CxImageMNG();
+
+ bool Load(const TCHAR * imageFileName);
+
+ bool Decode(CxFile * hFile);
+ bool Decode(FILE *hFile) { CxIOFile file(hFile); return Decode(&file); }
+
+#if CXIMAGE_SUPPORT_ENCODE
+ bool Encode(CxFile * hFile);
+ bool Encode(FILE *hFile) { CxIOFile file(hFile); return Encode(&file); }
+ bool Save(const TCHAR * imageFileName){ return CxImage::Save(imageFileName,CXIMAGE_FORMAT_MNG);}
+#endif // CXIMAGE_SUPPORT_ENCODE
+
+ int32_t Resume();
+ void SetSpeed(float speed);
+
+ mng_handle hmng;
+ mngstuff mnginfo;
+protected:
+ void WritePNG(mng_handle hMNG, int32_t Frame, int32_t FrameCount );
+ void SetCallbacks(mng_handle mng);
+};
+
+#endif
+
+#endif
diff --git a/smelt/sdl/CxImage/ximapal.cpp b/smelt/sdl/CxImage/ximapal.cpp new file mode 100644 index 0000000..fe0615b --- /dev/null +++ b/smelt/sdl/CxImage/ximapal.cpp @@ -0,0 +1,834 @@ +// xImaPal.cpp : Palette and Pixel functions
+/* 07/08/2001 v1.00 - Davide Pizzolato - www.xdp.it
+ * CxImage version 7.0.0 31/Dec/2010
+ */
+
+#include "ximage.h"
+
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * returns the palette dimension in byte
+ */
+uint32_t CxImage::GetPaletteSize()
+{
+ return (head.biClrUsed * sizeof(RGBQUAD));
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImage::SetPaletteColor(uint8_t idx, uint8_t r, uint8_t g, uint8_t b, uint8_t alpha)
+{
+ if ((pDib)&&(head.biClrUsed)){
+ uint8_t* iDst = (uint8_t*)(pDib) + sizeof(BITMAPINFOHEADER);
+ if (idx<head.biClrUsed){
+ int32_t ldx=idx*sizeof(RGBQUAD);
+ iDst[ldx++] = (uint8_t) b;
+ iDst[ldx++] = (uint8_t) g;
+ iDst[ldx++] = (uint8_t) r;
+ iDst[ldx] = (uint8_t) alpha;
+ info.last_c_isvalid = false;
+ }
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImage::SetPaletteColor(uint8_t idx, RGBQUAD c)
+{
+ if ((pDib)&&(head.biClrUsed)){
+ uint8_t* iDst = (uint8_t*)(pDib) + sizeof(BITMAPINFOHEADER);
+ if (idx<head.biClrUsed){
+ int32_t ldx=idx*sizeof(RGBQUAD);
+ iDst[ldx++] = (uint8_t) c.rgbBlue;
+ iDst[ldx++] = (uint8_t) c.rgbGreen;
+ iDst[ldx++] = (uint8_t) c.rgbRed;
+ iDst[ldx] = (uint8_t) c.rgbReserved;
+ info.last_c_isvalid = false;
+ }
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImage::SetPaletteColor(uint8_t idx, COLORREF cr)
+{
+ if ((pDib)&&(head.biClrUsed)){
+ uint8_t* iDst = (uint8_t*)(pDib) + sizeof(BITMAPINFOHEADER);
+ if (idx<head.biClrUsed){
+ int32_t ldx=idx*sizeof(RGBQUAD);
+ iDst[ldx++] = (uint8_t) GetBValue(cr);
+ iDst[ldx++] = (uint8_t) GetGValue(cr);
+ iDst[ldx++] = (uint8_t) GetRValue(cr);
+ iDst[ldx] = (uint8_t) 0;
+ info.last_c_isvalid = false;
+ }
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * returns the pointer to the first palette index
+ */
+RGBQUAD* CxImage::GetPalette() const
+{
+ if ((pDib)&&(head.biClrUsed))
+ return (RGBQUAD*)((uint8_t*)pDib + sizeof(BITMAPINFOHEADER));
+ return NULL;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Returns the color of the specified index.
+ */
+RGBQUAD CxImage::GetPaletteColor(uint8_t idx)
+{
+ RGBQUAD rgb = {0,0,0,0};
+ if ((pDib)&&(head.biClrUsed)){
+ uint8_t* iDst = (uint8_t*)(pDib) + sizeof(BITMAPINFOHEADER);
+ if (idx<head.biClrUsed){
+ int32_t ldx=idx*sizeof(RGBQUAD);
+ rgb.rgbBlue = iDst[ldx++];
+ rgb.rgbGreen=iDst[ldx++];
+ rgb.rgbRed =iDst[ldx++];
+ rgb.rgbReserved = iDst[ldx];
+ }
+ }
+ return rgb;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Returns the palette index of the specified pixel.
+ */
+uint8_t CxImage::GetPixelIndex(int32_t x,int32_t y)
+{
+ if ((pDib==NULL)||(head.biClrUsed==0)) return 0;
+
+ if ((x<0)||(y<0)||(x>=head.biWidth)||(y>=head.biHeight)) {
+ if (info.nBkgndIndex >= 0) return (uint8_t)info.nBkgndIndex;
+ else return *info.pImage;
+ }
+ if (head.biBitCount==8){
+ return info.pImage[y*info.dwEffWidth + x];
+ } else {
+ uint8_t pos;
+ uint8_t iDst= info.pImage[y*info.dwEffWidth + (x*head.biBitCount >> 3)];
+ if (head.biBitCount==4){
+ pos = (uint8_t)(4*(1-x%2));
+ iDst &= (0x0F<<pos);
+ return (uint8_t)(iDst >> pos);
+ } else if (head.biBitCount==1){
+ pos = (uint8_t)(7-x%8);
+ iDst &= (0x01<<pos);
+ return (uint8_t)(iDst >> pos);
+ }
+ }
+ return 0;
+}
+////////////////////////////////////////////////////////////////////////////////
+uint8_t CxImage::BlindGetPixelIndex(const int32_t x,const int32_t y)
+{
+#ifdef _DEBUG
+ if ((pDib==NULL) || (head.biClrUsed==0) || !IsInside(x,y))
+ #if CXIMAGE_SUPPORT_EXCEPTION_HANDLING
+ throw 0;
+ #else
+ return 0;
+ #endif
+#endif
+
+ if (head.biBitCount==8){
+ return info.pImage[y*info.dwEffWidth + x];
+ } else {
+ uint8_t pos;
+ uint8_t iDst= info.pImage[y*info.dwEffWidth + (x*head.biBitCount >> 3)];
+ if (head.biBitCount==4){
+ pos = (uint8_t)(4*(1-x%2));
+ iDst &= (0x0F<<pos);
+ return (uint8_t)(iDst >> pos);
+ } else if (head.biBitCount==1){
+ pos = (uint8_t)(7-x%8);
+ iDst &= (0x01<<pos);
+ return (uint8_t)(iDst >> pos);
+ }
+ }
+ return 0;
+}
+////////////////////////////////////////////////////////////////////////////////
+RGBQUAD CxImage::GetPixelColor(int32_t x,int32_t y, bool bGetAlpha)
+{
+// RGBQUAD rgb={0,0,0,0};
+ RGBQUAD rgb=info.nBkgndColor; //<mpwolski>
+ if ((pDib==NULL)||(x<0)||(y<0)||
+ (x>=head.biWidth)||(y>=head.biHeight)){
+ if (info.nBkgndIndex >= 0){
+ if (head.biBitCount<24) return GetPaletteColor((uint8_t)info.nBkgndIndex);
+ else return info.nBkgndColor;
+ } else if (pDib) return GetPixelColor(0,0);
+ return rgb;
+ }
+
+ if (head.biClrUsed){
+ rgb = GetPaletteColor(BlindGetPixelIndex(x,y));
+ } else {
+ uint8_t* iDst = info.pImage + y*info.dwEffWidth + x*3;
+ rgb.rgbBlue = *iDst++;
+ rgb.rgbGreen= *iDst++;
+ rgb.rgbRed = *iDst;
+ }
+#if CXIMAGE_SUPPORT_ALPHA
+ if (pAlpha && bGetAlpha) rgb.rgbReserved = BlindAlphaGet(x,y);
+#else
+ rgb.rgbReserved = 0;
+#endif //CXIMAGE_SUPPORT_ALPHA
+ return rgb;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * This is (a bit) faster version of GetPixelColor.
+ * It tests bounds only in debug mode (_DEBUG defined).
+ *
+ * It is an error to request out-of-borders pixel with this method.
+ * In DEBUG mode an exception will be thrown, and data will be violated in non-DEBUG mode.
+ * \author ***bd*** 2.2004
+ */
+RGBQUAD CxImage::BlindGetPixelColor(const int32_t x,const int32_t y, bool bGetAlpha)
+{
+ RGBQUAD rgb;
+#ifdef _DEBUG
+ if ((pDib==NULL) || !IsInside(x,y))
+ #if CXIMAGE_SUPPORT_EXCEPTION_HANDLING
+ throw 0;
+ #else
+ {rgb.rgbReserved = 0; return rgb;}
+ #endif
+#endif
+
+ if (head.biClrUsed){
+ rgb = GetPaletteColor(BlindGetPixelIndex(x,y));
+ } else {
+ uint8_t* iDst = info.pImage + y*info.dwEffWidth + x*3;
+ rgb.rgbBlue = *iDst++;
+ rgb.rgbGreen= *iDst++;
+ rgb.rgbRed = *iDst;
+ rgb.rgbReserved = 0; //needed for images without alpha layer
+ }
+#if CXIMAGE_SUPPORT_ALPHA
+ if (pAlpha && bGetAlpha) rgb.rgbReserved = BlindAlphaGet(x,y);
+#else
+ rgb.rgbReserved = 0;
+#endif //CXIMAGE_SUPPORT_ALPHA
+ return rgb;
+}
+////////////////////////////////////////////////////////////////////////////////
+uint8_t CxImage::GetPixelGray(int32_t x, int32_t y)
+{
+ RGBQUAD color = GetPixelColor(x,y);
+ return (uint8_t)RGB2GRAY(color.rgbRed,color.rgbGreen,color.rgbBlue);
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImage::BlindSetPixelIndex(int32_t x,int32_t y,uint8_t i)
+{
+#ifdef _DEBUG
+ if ((pDib==NULL)||(head.biClrUsed==0)||
+ (x<0)||(y<0)||(x>=head.biWidth)||(y>=head.biHeight))
+ #if CXIMAGE_SUPPORT_EXCEPTION_HANDLING
+ throw 0;
+ #else
+ return;
+ #endif
+#endif
+
+ if (head.biBitCount==8){
+ info.pImage[y*info.dwEffWidth + x]=i;
+ return;
+ } else {
+ uint8_t pos;
+ uint8_t* iDst= info.pImage + y*info.dwEffWidth + (x*head.biBitCount >> 3);
+ if (head.biBitCount==4){
+ pos = (uint8_t)(4*(1-x%2));
+ *iDst &= ~(0x0F<<pos);
+ *iDst |= ((i & 0x0F)<<pos);
+ return;
+ } else if (head.biBitCount==1){
+ pos = (uint8_t)(7-x%8);
+ *iDst &= ~(0x01<<pos);
+ *iDst |= ((i & 0x01)<<pos);
+ return;
+ }
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImage::SetPixelIndex(int32_t x,int32_t y,uint8_t i)
+{
+ if ((pDib==NULL)||(head.biClrUsed==0)||
+ (x<0)||(y<0)||(x>=head.biWidth)||(y>=head.biHeight)) return ;
+
+ if (head.biBitCount==8){
+ info.pImage[y*info.dwEffWidth + x]=i;
+ return;
+ } else {
+ uint8_t pos;
+ uint8_t* iDst= info.pImage + y*info.dwEffWidth + (x*head.biBitCount >> 3);
+ if (head.biBitCount==4){
+ pos = (uint8_t)(4*(1-x%2));
+ *iDst &= ~(0x0F<<pos);
+ *iDst |= ((i & 0x0F)<<pos);
+ return;
+ } else if (head.biBitCount==1){
+ pos = (uint8_t)(7-x%8);
+ *iDst &= ~(0x01<<pos);
+ *iDst |= ((i & 0x01)<<pos);
+ return;
+ }
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImage::SetPixelColor(int32_t x,int32_t y,COLORREF cr)
+{
+ SetPixelColor(x,y,RGBtoRGBQUAD(cr));
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImage::BlindSetPixelColor(int32_t x,int32_t y,RGBQUAD c, bool bSetAlpha)
+{
+#ifdef _DEBUG
+ if ((pDib==NULL)||(x<0)||(y<0)||
+ (x>=head.biWidth)||(y>=head.biHeight))
+ #if CXIMAGE_SUPPORT_EXCEPTION_HANDLING
+ throw 0;
+ #else
+ return;
+ #endif
+#endif
+ if (head.biClrUsed)
+ BlindSetPixelIndex(x,y,GetNearestIndex(c));
+ else {
+ uint8_t* iDst = info.pImage + y*info.dwEffWidth + x*3;
+ *iDst++ = c.rgbBlue;
+ *iDst++ = c.rgbGreen;
+ *iDst = c.rgbRed;
+ }
+#if CXIMAGE_SUPPORT_ALPHA
+ if (bSetAlpha) AlphaSet(x,y,c.rgbReserved);
+#endif //CXIMAGE_SUPPORT_ALPHA
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImage::SetPixelColor(int32_t x,int32_t y,RGBQUAD c, bool bSetAlpha)
+{
+ if ((pDib==NULL)||(x<0)||(y<0)||
+ (x>=head.biWidth)||(y>=head.biHeight)) return;
+ if (head.biClrUsed)
+ BlindSetPixelIndex(x,y,GetNearestIndex(c));
+ else {
+ uint8_t* iDst = info.pImage + y*info.dwEffWidth + x*3;
+ *iDst++ = c.rgbBlue;
+ *iDst++ = c.rgbGreen;
+ *iDst = c.rgbRed;
+ }
+#if CXIMAGE_SUPPORT_ALPHA
+ if (bSetAlpha) AlphaSet(x,y,c.rgbReserved);
+#endif //CXIMAGE_SUPPORT_ALPHA
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Blends the current pixel color with a new color.
+ * \param x,y = pixel
+ * \param c = new color
+ * \param blend = can be from 0 (no effect) to 1 (full effect).
+ * \param bSetAlpha = if true, blends also the alpha component stored in c.rgbReserved
+ */
+void CxImage::BlendPixelColor(int32_t x,int32_t y,RGBQUAD c, float blend, bool bSetAlpha)
+{
+ if ((pDib==NULL)||(x<0)||(y<0)||
+ (x>=head.biWidth)||(y>=head.biHeight)) return;
+
+ int32_t a0 = (int32_t)(256*blend);
+ int32_t a1 = 256 - a0;
+
+ RGBQUAD c0 = BlindGetPixelColor(x,y);
+ c.rgbRed = (uint8_t)((c.rgbRed * a0 + c0.rgbRed * a1)>>8);
+ c.rgbBlue = (uint8_t)((c.rgbBlue * a0 + c0.rgbBlue * a1)>>8);
+ c.rgbGreen = (uint8_t)((c.rgbGreen * a0 + c0.rgbGreen * a1)>>8);
+
+ if (head.biClrUsed)
+ BlindSetPixelIndex(x,y,GetNearestIndex(c));
+ else {
+ uint8_t* iDst = info.pImage + y*info.dwEffWidth + x*3;
+ *iDst++ = c.rgbBlue;
+ *iDst++ = c.rgbGreen;
+ *iDst = c.rgbRed;
+#if CXIMAGE_SUPPORT_ALPHA
+ if (bSetAlpha) AlphaSet(x,y,c.rgbReserved);
+#endif //CXIMAGE_SUPPORT_ALPHA
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Returns the best palette index that matches a specified color.
+ */
+uint8_t CxImage::GetNearestIndex(RGBQUAD c)
+{
+ if ((pDib==NULL)||(head.biClrUsed==0)) return 0;
+
+ // <RJ> check matching with the previous result
+ if (info.last_c_isvalid && (*(int32_t*)&info.last_c == *(int32_t*)&c)) return info.last_c_index;
+ info.last_c = c;
+ info.last_c_isvalid = true;
+
+ uint8_t* iDst = (uint8_t*)(pDib) + sizeof(BITMAPINFOHEADER);
+ int32_t distance=200000;
+ int32_t i,j = 0;
+ int32_t k,l;
+ int32_t m = (int32_t)(head.biClrImportant==0 ? head.biClrUsed : head.biClrImportant);
+ for(i=0,l=0;i<m;i++,l+=sizeof(RGBQUAD)){
+ k = (iDst[l]-c.rgbBlue)*(iDst[l]-c.rgbBlue)+
+ (iDst[l+1]-c.rgbGreen)*(iDst[l+1]-c.rgbGreen)+
+ (iDst[l+2]-c.rgbRed)*(iDst[l+2]-c.rgbRed);
+// k = abs(iDst[l]-c.rgbBlue)+abs(iDst[l+1]-c.rgbGreen)+abs(iDst[l+2]-c.rgbRed);
+ if (k==0){
+ j=i;
+ break;
+ }
+ if (k<distance){
+ distance=k;
+ j=i;
+ }
+ }
+ info.last_c_index = (uint8_t)j;
+ return (uint8_t)j;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * swaps the blue and red components (for RGB images)
+ * \param buffer : pointer to the pixels
+ * \param length : number of bytes to swap. lenght may not exceed the scan line.
+ */
+void CxImage::RGBtoBGR(uint8_t *buffer, int32_t length)
+{
+ if (buffer && (head.biClrUsed==0)){
+ uint8_t temp;
+ length = min(length,(int32_t)info.dwEffWidth);
+ length = min(length,(int32_t)(3*head.biWidth));
+ for (int32_t i=0;i<length;i+=3){
+ temp = buffer[i]; buffer[i] = buffer[i+2]; buffer[i+2] = temp;
+ }
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+RGBQUAD CxImage::RGBtoRGBQUAD(COLORREF cr)
+{
+ RGBQUAD c;
+ c.rgbRed = GetRValue(cr); /* get R, G, and B out of uint32_t */
+ c.rgbGreen = GetGValue(cr);
+ c.rgbBlue = GetBValue(cr);
+ c.rgbReserved=0;
+ return c;
+}
+////////////////////////////////////////////////////////////////////////////////
+COLORREF CxImage::RGBQUADtoRGB (RGBQUAD c)
+{
+ return RGB(c.rgbRed,c.rgbGreen,c.rgbBlue);
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Returns the color of the specified index.
+ * \param i = palette index
+ * \param r, g, b = output color channels
+ */
+bool CxImage::GetPaletteColor(uint8_t i, uint8_t* r, uint8_t* g, uint8_t* b)
+{
+ RGBQUAD* ppal=GetPalette();
+ if (ppal) {
+ *r = ppal[i].rgbRed;
+ *g = ppal[i].rgbGreen;
+ *b = ppal[i].rgbBlue;
+ return true;
+ }
+ return false;
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImage::SetPalette(uint32_t n, uint8_t *r, uint8_t *g, uint8_t *b)
+{
+ if ((!r)||(pDib==NULL)||(head.biClrUsed==0)) return;
+ if (!g) g = r;
+ if (!b) b = g;
+ RGBQUAD* ppal=GetPalette();
+ uint32_t m=min(n,head.biClrUsed);
+ for (uint32_t i=0; i<m;i++){
+ ppal[i].rgbRed=r[i];
+ ppal[i].rgbGreen=g[i];
+ ppal[i].rgbBlue=b[i];
+ }
+ info.last_c_isvalid = false;
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImage::SetPalette(rgb_color *rgb,uint32_t nColors)
+{
+ if ((!rgb)||(pDib==NULL)||(head.biClrUsed==0)) return;
+ RGBQUAD* ppal=GetPalette();
+ uint32_t m=min(nColors,head.biClrUsed);
+ for (uint32_t i=0; i<m;i++){
+ ppal[i].rgbRed=rgb[i].r;
+ ppal[i].rgbGreen=rgb[i].g;
+ ppal[i].rgbBlue=rgb[i].b;
+ }
+ info.last_c_isvalid = false;
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImage::SetPalette(RGBQUAD* pPal,uint32_t nColors)
+{
+ if ((pPal==NULL)||(pDib==NULL)||(head.biClrUsed==0)) return;
+ memcpy(GetPalette(),pPal,min(GetPaletteSize(),nColors*sizeof(RGBQUAD)));
+ info.last_c_isvalid = false;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Sets (or replaces) the palette to gray scale palette.
+ * The function doesn't change the pixels; for standard
+ * gray scale conversion use GrayScale().
+ */
+void CxImage::SetGrayPalette()
+{
+ if ((pDib==NULL)||(head.biClrUsed==0)) return;
+ RGBQUAD* pal=GetPalette();
+ for (uint32_t ni=0;ni<head.biClrUsed;ni++)
+ pal[ni].rgbBlue=pal[ni].rgbGreen = pal[ni].rgbRed = (uint8_t)(ni*(255/(head.biClrUsed-1)));
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Colorize the palette.
+ * \sa Colorize
+ */
+void CxImage::BlendPalette(COLORREF cr,int32_t perc)
+{
+ if ((pDib==NULL)||(head.biClrUsed==0)) return;
+ uint8_t* iDst = (uint8_t*)(pDib) + sizeof(BITMAPINFOHEADER);
+ uint32_t i,r,g,b;
+ RGBQUAD* pPal=(RGBQUAD*)iDst;
+ r = GetRValue(cr);
+ g = GetGValue(cr);
+ b = GetBValue(cr);
+ if (perc>100) perc=100;
+ for(i=0;i<head.biClrUsed;i++){
+ pPal[i].rgbBlue=(uint8_t)((pPal[i].rgbBlue*(100-perc)+b*perc)/100);
+ pPal[i].rgbGreen =(uint8_t)((pPal[i].rgbGreen*(100-perc)+g*perc)/100);
+ pPal[i].rgbRed =(uint8_t)((pPal[i].rgbRed*(100-perc)+r*perc)/100);
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Returns true if the image has 256 colors and a linear grey scale palette.
+ */
+bool CxImage::IsGrayScale()
+{
+ RGBQUAD* ppal=GetPalette();
+ if(!(pDib && ppal && head.biClrUsed)) return false;
+ for(uint32_t i=0;i<head.biClrUsed;i++){
+ if (ppal[i].rgbBlue!=i || ppal[i].rgbGreen!=i || ppal[i].rgbRed!=i) return false;
+ }
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * swap two indexes in the image and their colors in the palette
+ */
+void CxImage::SwapIndex(uint8_t idx1, uint8_t idx2)
+{
+ RGBQUAD* ppal=GetPalette();
+ if(!(pDib && ppal)) return;
+ //swap the colors
+ RGBQUAD tempRGB=GetPaletteColor(idx1);
+ SetPaletteColor(idx1,GetPaletteColor(idx2));
+ SetPaletteColor(idx2,tempRGB);
+ //swap the pixels
+ uint8_t idx;
+ for(int32_t y=0; y < head.biHeight; y++){
+ for(int32_t x=0; x < head.biWidth; x++){
+ idx=BlindGetPixelIndex(x,y);
+ if (idx==idx1) BlindSetPixelIndex(x,y,idx2);
+ if (idx==idx2) BlindSetPixelIndex(x,y,idx1);
+ }
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * swap Red and Blue colors
+ */
+void CxImage::SwapRGB2BGR()
+{
+ if (!pDib) return;
+
+ if (head.biClrUsed){
+ RGBQUAD* ppal=GetPalette();
+ uint8_t b;
+ if(!ppal) return;
+ for(uint16_t a=0;a<head.biClrUsed;a++){
+ b=ppal[a].rgbBlue; ppal[a].rgbBlue=ppal[a].rgbRed; ppal[a].rgbRed=b;
+ }
+ } else {
+ for(int32_t y=0;y<head.biHeight;y++){
+ RGBtoBGR(GetBits(y),3*head.biWidth);
+ }
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+bool CxImage::IsTransparent(int32_t x, int32_t y)
+{
+ if (!pDib) return false;
+
+ if (info.nBkgndIndex>=0){
+ if (head.biClrUsed){
+ if (GetPixelIndex(x,y) == info.nBkgndIndex) return true;
+ } else {
+ RGBQUAD ct = info.nBkgndColor;
+ RGBQUAD c = GetPixelColor(x,y,false);
+ if (*(int32_t*)&c==*(int32_t*)&ct) return true;
+ }
+ }
+
+#if CXIMAGE_SUPPORT_ALPHA
+ if (pAlpha) return AlphaGet(x,y)==0;
+#endif
+
+ return false;
+}
+////////////////////////////////////////////////////////////////////////////////
+bool CxImage::GetTransparentMask(CxImage* iDst)
+{
+ if (!pDib) return false;
+
+ CxImage tmp;
+ tmp.Create(head.biWidth, head.biHeight, 1, GetType());
+ tmp.SetStdPalette();
+ tmp.Clear(0);
+
+ for(int32_t y=0; y<head.biHeight; y++){
+ for(int32_t x=0; x<head.biWidth; x++){
+ if (IsTransparent(x,y)){
+ tmp.BlindSetPixelIndex(x,y,1);
+ }
+ }
+ }
+
+ if (iDst) iDst->Transfer(tmp);
+ else Transfer(tmp);
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Checks if image has the same palette, if any.
+ * \param img = image to compare.
+ * \param bCheckAlpha = check also the rgbReserved field.
+ */
+bool CxImage::IsSamePalette(CxImage &img, bool bCheckAlpha)
+{
+ if (head.biClrUsed != img.head.biClrUsed)
+ return false;
+ if (head.biClrUsed == 0)
+ return false;
+
+ RGBQUAD c1,c2;
+ for (uint32_t n=0; n<head.biClrUsed; n++){
+ c1 = GetPaletteColor((uint8_t)n);
+ c2 = img.GetPaletteColor((uint8_t)n);
+ if (c1.rgbRed != c2.rgbRed) return false;
+ if (c1.rgbBlue != c2.rgbBlue) return false;
+ if (c1.rgbGreen != c2.rgbGreen) return false;
+ if (bCheckAlpha && (c1.rgbReserved != c2.rgbReserved)) return false;
+ }
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * \sa SetClrImportant
+ */
+uint32_t CxImage::GetClrImportant() const
+{
+ return head.biClrImportant;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * sets the maximum number of colors that some functions like
+ * DecreaseBpp() or GetNearestIndex() will use on indexed images
+ * \param ncolors should be less than 2^bpp,
+ * or 0 if all the colors are important.
+ */
+void CxImage::SetClrImportant(uint32_t ncolors)
+{
+ if (ncolors==0 || ncolors>256) {
+ head.biClrImportant = 0;
+ return;
+ }
+
+ switch(head.biBitCount){
+ case 1:
+ head.biClrImportant = min(ncolors,2);
+ break;
+ case 4:
+ head.biClrImportant = min(ncolors,16);
+ break;
+ case 8:
+ head.biClrImportant = ncolors;
+ break;
+ }
+ return;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Returns pointer to pixel. Currently implemented only for truecolor images.
+ *
+ * \param x,y - coordinates
+ *
+ * \return pointer to first byte of pixel data
+ *
+ * \author ***bd*** 2.2004
+ */
+void* CxImage::BlindGetPixelPointer(const int32_t x, const int32_t y)
+{
+#ifdef _DEBUG
+ if ((pDib==NULL) || !IsInside(x,y))
+ #if CXIMAGE_SUPPORT_EXCEPTION_HANDLING
+ throw 0;
+ #else
+ return 0;
+ #endif
+#endif
+ if (!IsIndexed())
+ return info.pImage + y*info.dwEffWidth + x*3;
+ else
+ return 0;
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImage::DrawLine(int32_t StartX, int32_t EndX, int32_t StartY, int32_t EndY, COLORREF cr)
+{
+ DrawLine(StartX, EndX, StartY, EndY, RGBtoRGBQUAD(cr));
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImage::DrawLine(int32_t StartX, int32_t EndX, int32_t StartY, int32_t EndY, RGBQUAD color, bool bSetAlpha)
+{
+ if (!pDib) return;
+ //////////////////////////////////////////////////////
+ // Draws a line using the Bresenham line algorithm
+ // Thanks to Jordan DeLozier <JDL>
+ //////////////////////////////////////////////////////
+ int32_t x1 = StartX;
+ int32_t y1 = StartY;
+ int32_t x = x1; // Start x off at the first pixel
+ int32_t y = y1; // Start y off at the first pixel
+ int32_t x2 = EndX;
+ int32_t y2 = EndY;
+
+ int32_t xinc1,xinc2,yinc1,yinc2; // Increasing values
+ int32_t den, num, numadd,numpixels;
+ int32_t deltax = abs(x2 - x1); // The difference between the x's
+ int32_t deltay = abs(y2 - y1); // The difference between the y's
+
+ // Get Increasing Values
+ if (x2 >= x1) { // The x-values are increasing
+ xinc1 = 1;
+ xinc2 = 1;
+ } else { // The x-values are decreasing
+ xinc1 = -1;
+ xinc2 = -1;
+ }
+
+ if (y2 >= y1) { // The y-values are increasing
+ yinc1 = 1;
+ yinc2 = 1;
+ } else { // The y-values are decreasing
+ yinc1 = -1;
+ yinc2 = -1;
+ }
+
+ // Actually draw the line
+ if (deltax >= deltay) // There is at least one x-value for every y-value
+ {
+ xinc1 = 0; // Don't change the x when numerator >= denominator
+ yinc2 = 0; // Don't change the y for every iteration
+ den = deltax;
+ num = deltax / 2;
+ numadd = deltay;
+ numpixels = deltax; // There are more x-values than y-values
+ }
+ else // There is at least one y-value for every x-value
+ {
+ xinc2 = 0; // Don't change the x for every iteration
+ yinc1 = 0; // Don't change the y when numerator >= denominator
+ den = deltay;
+ num = deltay / 2;
+ numadd = deltax;
+ numpixels = deltay; // There are more y-values than x-values
+ }
+
+ for (int32_t curpixel = 0; curpixel <= numpixels; curpixel++)
+ {
+ // Draw the current pixel
+ SetPixelColor(x,y,color,bSetAlpha);
+
+ num += numadd; // Increase the numerator by the top of the fraction
+ if (num >= den) // Check if numerator >= denominator
+ {
+ num -= den; // Calculate the new numerator value
+ x += xinc1; // Change the x as appropriate
+ y += yinc1; // Change the y as appropriate
+ }
+ x += xinc2; // Change the x as appropriate
+ y += yinc2; // Change the y as appropriate
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Sets a palette with standard colors for 1, 4 and 8 bpp images.
+ */
+void CxImage::SetStdPalette()
+{
+ if (!pDib) return;
+ switch (head.biBitCount){
+ case 8:
+ {
+ const uint8_t pal256[1024] = {0,0,0,0,0,0,128,0,0,128,0,0,0,128,128,0,128,0,0,0,128,0,128,0,128,128,0,0,192,192,192,0,
+ 192,220,192,0,240,202,166,0,212,240,255,0,177,226,255,0,142,212,255,0,107,198,255,0,
+ 72,184,255,0,37,170,255,0,0,170,255,0,0,146,220,0,0,122,185,0,0,98,150,0,0,74,115,0,0,
+ 50,80,0,212,227,255,0,177,199,255,0,142,171,255,0,107,143,255,0,72,115,255,0,37,87,255,0,0,
+ 85,255,0,0,73,220,0,0,61,185,0,0,49,150,0,0,37,115,0,0,25,80,0,212,212,255,0,177,177,255,0,
+ 142,142,255,0,107,107,255,0,72,72,255,0,37,37,255,0,0,0,254,0,0,0,220,0,0,0,185,0,0,0,150,0,
+ 0,0,115,0,0,0,80,0,227,212,255,0,199,177,255,0,171,142,255,0,143,107,255,0,115,72,255,0,
+ 87,37,255,0,85,0,255,0,73,0,220,0,61,0,185,0,49,0,150,0,37,0,115,0,25,0,80,0,240,212,255,0,
+ 226,177,255,0,212,142,255,0,198,107,255,0,184,72,255,0,170,37,255,0,170,0,255,0,146,0,220,0,
+ 122,0,185,0,98,0,150,0,74,0,115,0,50,0,80,0,255,212,255,0,255,177,255,0,255,142,255,0,255,107,255,0,
+ 255,72,255,0,255,37,255,0,254,0,254,0,220,0,220,0,185,0,185,0,150,0,150,0,115,0,115,0,80,0,80,0,
+ 255,212,240,0,255,177,226,0,255,142,212,0,255,107,198,0,255,72,184,0,255,37,170,0,255,0,170,0,
+ 220,0,146,0,185,0,122,0,150,0,98,0,115,0,74,0,80,0,50,0,255,212,227,0,255,177,199,0,255,142,171,0,
+ 255,107,143,0,255,72,115,0,255,37,87,0,255,0,85,0,220,0,73,0,185,0,61,0,150,0,49,0,115,0,37,0,
+ 80,0,25,0,255,212,212,0,255,177,177,0,255,142,142,0,255,107,107,0,255,72,72,0,255,37,37,0,254,0,
+ 0,0,220,0,0,0,185,0,0,0,150,0,0,0,115,0,0,0,80,0,0,0,255,227,212,0,255,199,177,0,255,171,142,0,
+ 255,143,107,0,255,115,72,0,255,87,37,0,255,85,0,0,220,73,0,0,185,61,0,0,150,49,0,0,115,37,0,
+ 0,80,25,0,0,255,240,212,0,255,226,177,0,255,212,142,0,255,198,107,0,255,184,72,0,255,170,37,0,
+ 255,170,0,0,220,146,0,0,185,122,0,0,150,98,0,0,115,74,0,0,80,50,0,0,255,255,212,0,255,255,177,0,
+ 255,255,142,0,255,255,107,0,255,255,72,0,255,255,37,0,254,254,0,0,220,220,0,0,185,185,0,0,150,150,0,
+ 0,115,115,0,0,80,80,0,0,240,255,212,0,226,255,177,0,212,255,142,0,198,255,107,0,184,255,72,0,
+ 170,255,37,0,170,255,0,0,146,220,0,0,122,185,0,0,98,150,0,0,74,115,0,0,50,80,0,0,227,255,212,0,
+ 199,255,177,0,171,255,142,0,143,255,107,0,115,255,72,0,87,255,37,0,85,255,0,0,73,220,0,0,61,185,0,
+ 0,49,150,0,0,37,115,0,0,25,80,0,0,212,255,212,0,177,255,177,0,142,255,142,0,107,255,107,0,72,255,72,0,
+ 37,255,37,0,0,254,0,0,0,220,0,0,0,185,0,0,0,150,0,0,0,115,0,0,0,80,0,0,212,255,227,0,177,255,199,0,
+ 142,255,171,0,107,255,143,0,72,255,115,0,37,255,87,0,0,255,85,0,0,220,73,0,0,185,61,0,0,150,49,0,0,
+ 115,37,0,0,80,25,0,212,255,240,0,177,255,226,0,142,255,212,0,107,255,198,0,72,255,184,0,37,255,170,0,
+ 0,255,170,0,0,220,146,0,0,185,122,0,0,150,98,0,0,115,74,0,0,80,50,0,212,255,255,0,177,255,255,0,
+ 142,255,255,0,107,255,255,0,72,255,255,0,37,255,255,0,0,254,254,0,0,220,220,0,0,185,185,0,0,
+ 150,150,0,0,115,115,0,0,80,80,0,242,242,242,0,230,230,230,0,218,218,218,0,206,206,206,0,194,194,194,0,
+ 182,182,182,0,170,170,170,0,158,158,158,0,146,146,146,0,134,134,134,0,122,122,122,0,110,110,110,0,
+ 98,98,98,0,86,86,86,0,74,74,74,0,62,62,62,0,50,50,50,0,38,38,38,0,26,26,26,0,14,14,14,0,240,251,255,0,
+ 164,160,160,0,128,128,128,0,0,0,255,0,0,255,0,0,0,255,255,0,255,0,0,0,255,0,255,0,255,255,0,0,255,255,255,0};
+ memcpy(GetPalette(),pal256,1024);
+ break;
+ }
+ case 4:
+ {
+ const uint8_t pal16[64]={0,0,0,0,0,0,128,0,0,128,0,0,0,128,128,0,128,0,0,0,128,0,128,0,128,128,0,0,192,192,192,0,
+ 128,128,128,0,0,0,255,0,0,255,0,0,0,255,255,0,255,0,0,0,255,0,255,0,255,255,0,0,255,255,255,0};
+ memcpy(GetPalette(),pal16,64);
+ break;
+ }
+ case 1:
+ {
+ const uint8_t pal2[8]={0,0,0,0,255,255,255,0};
+ memcpy(GetPalette(),pal2,8);
+ break;
+ }
+ }
+ info.last_c_isvalid = false;
+ return;
+}
+////////////////////////////////////////////////////////////////////////////////
diff --git a/smelt/sdl/CxImage/ximapcx.cpp b/smelt/sdl/CxImage/ximapcx.cpp new file mode 100644 index 0000000..2fa2f5d --- /dev/null +++ b/smelt/sdl/CxImage/ximapcx.cpp @@ -0,0 +1,479 @@ +/*
+ * File: ximapcx.cpp
+ * Purpose: Platform Independent PCX Image Class Loader and Writer
+ * 05/Jan/2002 Davide Pizzolato - www.xdp.it
+ * CxImage version 7.0.0 31/Dec/2010
+ *
+ * based on ppmtopcx.c - convert a portable pixmap to PCX
+ * Copyright (C) 1994 by Ingo Wilken (Ingo.Wilken@informatik.uni-oldenburg.de)
+ * based on ppmtopcx.c by Michael Davidson
+ */
+
+#include "ximapcx.h"
+
+#if CXIMAGE_SUPPORT_PCX
+
+#include "xmemfile.h"
+
+#define PCX_MAGIC 0X0A // PCX magic number
+#define PCX_256_COLORS 0X0C // magic number for 256 colors
+#define PCX_HDR_SIZE 128 // size of PCX header
+#define PCX_MAXCOLORS 256
+#define PCX_MAXPLANES 4
+#define PCX_MAXVAL 255
+
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_SUPPORT_DECODE
+////////////////////////////////////////////////////////////////////////////////
+bool CxImagePCX::Decode(CxFile *hFile)
+{
+ if (hFile == NULL) return false;
+
+ PCXHEADER pcxHeader;
+ int32_t i, x, y, y2, nbytes, count, Height, Width;
+ uint8_t c, ColorMap[PCX_MAXCOLORS][3];
+ uint8_t *pcximage = NULL, *lpHead1 = NULL, *lpHead2 = NULL;
+ uint8_t *pcxplanes, *pcxpixels;
+
+ cx_try
+ {
+ if (hFile->Read(&pcxHeader,sizeof(PCXHEADER),1)==0) cx_throw("Can't read PCX image");
+
+ PCX_toh(&pcxHeader);
+
+ if (pcxHeader.Manufacturer != PCX_MAGIC) cx_throw("Error: Not a PCX file");
+ // Check for PCX run length encoding
+ if (pcxHeader.Encoding != 1) cx_throw("PCX file has unknown encoding scheme");
+
+ Width = (pcxHeader.Xmax - pcxHeader.Xmin) + 1;
+ Height = (pcxHeader.Ymax - pcxHeader.Ymin) + 1;
+ info.xDPI = pcxHeader.Hres;
+ info.yDPI = pcxHeader.Vres;
+
+ if (info.nEscape == -1){
+ head.biWidth = Width;
+ head.biHeight= Height;
+ info.dwType = CXIMAGE_FORMAT_PCX;
+ return true;
+ }
+
+ // Check that we can handle this image format
+ if (pcxHeader.ColorPlanes > 4)
+ cx_throw("Can't handle image with more than 4 planes");
+
+ // Create the image
+ if (pcxHeader.ColorPlanes >= 3 && pcxHeader.BitsPerPixel == 8){
+ Create (Width, Height, 24, CXIMAGE_FORMAT_PCX);
+#if CXIMAGE_SUPPORT_ALPHA
+ if (pcxHeader.ColorPlanes==4) AlphaCreate();
+#endif //CXIMAGE_SUPPORT_ALPHA
+ } else if (pcxHeader.ColorPlanes == 4 && pcxHeader.BitsPerPixel == 1)
+ Create (Width, Height, 4, CXIMAGE_FORMAT_PCX);
+ else
+ Create (Width, Height, pcxHeader.BitsPerPixel, CXIMAGE_FORMAT_PCX);
+
+ if (info.nEscape) cx_throw("Cancelled"); // <vho> - cancel decoding
+
+ //Read the image and check if it's ok
+ nbytes = pcxHeader.BytesPerLine * pcxHeader.ColorPlanes * Height;
+ lpHead1 = pcximage = (uint8_t*)malloc(nbytes);
+ while (nbytes > 0){
+ if (hFile == NULL || hFile->Eof()) cx_throw("corrupted PCX");
+
+ hFile->Read(&c,1,1);
+ if ((c & 0XC0) != 0XC0){ // Repeated group
+ *pcximage++ = c;
+ --nbytes;
+ continue;
+ }
+ count = c & 0X3F; // extract count
+ hFile->Read(&c,1,1);
+ if (count > nbytes) cx_throw("repeat count spans end of image");
+
+ nbytes -= count;
+ while (--count >=0) *pcximage++ = c;
+ }
+ pcximage = lpHead1;
+
+ //store the palette
+ for (i = 0; i < 16; i++){
+ ColorMap[i][0] = pcxHeader.ColorMap[i][0];
+ ColorMap[i][1] = pcxHeader.ColorMap[i][1];
+ ColorMap[i][2] = pcxHeader.ColorMap[i][2];
+ }
+ if (pcxHeader.BitsPerPixel == 8 && pcxHeader.ColorPlanes == 1){
+ hFile->Read(&c,1,1);
+ if (c != PCX_256_COLORS) cx_throw("bad color map signature");
+
+ for (i = 0; i < PCX_MAXCOLORS; i++){
+ hFile->Read(&ColorMap[i][0],1,1);
+ hFile->Read(&ColorMap[i][1],1,1);
+ hFile->Read(&ColorMap[i][2],1,1);
+ }
+ }
+ if (pcxHeader.BitsPerPixel == 1 && pcxHeader.ColorPlanes == 1){
+ ColorMap[0][0] = ColorMap[0][1] = ColorMap[0][2] = 0;
+ ColorMap[1][0] = ColorMap[1][1] = ColorMap[1][2] = 255;
+ }
+
+ for (uint32_t idx=0; idx<head.biClrUsed; idx++) SetPaletteColor((uint8_t)idx,ColorMap[idx][0],ColorMap[idx][1],ColorMap[idx][2]);
+
+ lpHead2 = pcxpixels = (uint8_t *)malloc(Width + pcxHeader.BytesPerLine * 8);
+ // Convert the image
+ for (y = 0; y < Height; y++){
+
+ if (info.nEscape) cx_throw("Cancelled"); // <vho> - cancel decoding
+
+ y2=Height-1-y;
+ pcxpixels = lpHead2;
+ pcxplanes = pcximage + (y * pcxHeader.BytesPerLine * pcxHeader.ColorPlanes);
+
+ if (pcxHeader.ColorPlanes == 3 && pcxHeader.BitsPerPixel == 8){
+ // Deal with 24 bit color image
+ for (x = 0; x < Width; x++){
+ SetPixelColor(x,y2,RGB(pcxplanes[x],pcxplanes[pcxHeader.BytesPerLine + x],pcxplanes[2*pcxHeader.BytesPerLine + x]));
+ }
+ continue;
+#if CXIMAGE_SUPPORT_ALPHA
+ } else if (pcxHeader.ColorPlanes == 4 && pcxHeader.BitsPerPixel == 8){
+ for (x = 0; x < Width; x++){
+ SetPixelColor(x,y2,RGB(pcxplanes[x],pcxplanes[pcxHeader.BytesPerLine + x],pcxplanes[2*pcxHeader.BytesPerLine + x]));
+ AlphaSet(x,y2,pcxplanes[3*pcxHeader.BytesPerLine + x]);
+ }
+ continue;
+#endif //CXIMAGE_SUPPORT_ALPHA
+ } else if (pcxHeader.ColorPlanes == 1) {
+ if (!PCX_UnpackPixels(pcxpixels, pcxplanes, pcxHeader.BytesPerLine, pcxHeader.ColorPlanes, pcxHeader.BitsPerPixel)){
+ cx_throw("PCX_UnpackPixels: Can't handle packed pixels with more than 1 plane");
+ }
+ } else {
+ if (!PCX_PlanesToPixels(pcxpixels, pcxplanes, pcxHeader.BytesPerLine, pcxHeader.ColorPlanes, pcxHeader.BitsPerPixel)){
+ cx_throw("PCX_PlanesToPixels: more than 4 planes or more than 1 bit per pixel");
+ }
+ }
+ for (x = 0; x < Width; x++) SetPixelIndex(x,y2,pcxpixels[x]);
+ }
+
+ } cx_catch {
+ if (strcmp(message,"")) strncpy(info.szLastError,message,255);
+ if (lpHead1){ free(lpHead1); lpHead1 = NULL; }
+ if (lpHead2){ free(lpHead2); lpHead2 = NULL; }
+ return false;
+ }
+ if (lpHead1){ free(lpHead1); lpHead1 = NULL; }
+ if (lpHead2){ free(lpHead2); lpHead2 = NULL; }
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+#endif //CXIMAGE_SUPPORT_DECODE
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_SUPPORT_ENCODE
+////////////////////////////////////////////////////////////////////////////////
+bool CxImagePCX::Encode(CxFile * hFile)
+{
+ if (EncodeSafeCheck(hFile)) return false;
+
+ cx_try
+ {
+ PCXHEADER pcxHeader;
+ memset(&pcxHeader,0,sizeof(pcxHeader));
+ pcxHeader.Manufacturer = PCX_MAGIC;
+ pcxHeader.Version = 5;
+ pcxHeader.Encoding = 1;
+ pcxHeader.Xmin = 0;
+ pcxHeader.Ymin = 0;
+ pcxHeader.Xmax = (uint16_t)head.biWidth-1;
+ pcxHeader.Ymax = (uint16_t)head.biHeight-1;
+ pcxHeader.Hres = (uint16_t)info.xDPI;
+ pcxHeader.Vres = (uint16_t)info.yDPI;
+ pcxHeader.Reserved = 0;
+ pcxHeader.PaletteType = head.biClrUsed==0;
+
+ switch(head.biBitCount){
+ case 24:
+ case 8:
+ {
+ pcxHeader.BitsPerPixel = 8;
+ pcxHeader.ColorPlanes = head.biClrUsed==0 ? 3 : 1;
+#if CXIMAGE_SUPPORT_ALPHA
+ if (AlphaIsValid() && head.biClrUsed==0) pcxHeader.ColorPlanes =4;
+#endif //CXIMAGE_SUPPORT_ALPHA
+ pcxHeader.BytesPerLine = (uint16_t)head.biWidth;
+ break;
+ }
+ default: //(4 1)
+ pcxHeader.BitsPerPixel = 1;
+ pcxHeader.ColorPlanes = head.biClrUsed==16 ? 4 : 1;
+ pcxHeader.BytesPerLine = (uint16_t)((head.biWidth * pcxHeader.BitsPerPixel + 7)>>3);
+ }
+
+ if (pcxHeader.BitsPerPixel == 1 && pcxHeader.ColorPlanes == 1){
+ pcxHeader.ColorMap[0][0] = pcxHeader.ColorMap[0][1] = pcxHeader.ColorMap[0][2] = 0;
+ pcxHeader.ColorMap[1][0] = pcxHeader.ColorMap[1][1] = pcxHeader.ColorMap[1][2] = 255;
+ }
+ if (pcxHeader.BitsPerPixel == 1 && pcxHeader.ColorPlanes == 4){
+ RGBQUAD c;
+ for (int32_t i = 0; i < 16; i++){
+ c=GetPaletteColor(i);
+ pcxHeader.ColorMap[i][0] = c.rgbRed;
+ pcxHeader.ColorMap[i][1] = c.rgbGreen;
+ pcxHeader.ColorMap[i][2] = c.rgbBlue;
+ }
+ }
+
+ pcxHeader.BytesPerLine = (pcxHeader.BytesPerLine + 1)&(~1);
+
+ PCX_toh(&pcxHeader);
+ if (hFile->Write(&pcxHeader, sizeof(pcxHeader), 1) == 0 )
+ cx_throw("cannot write PCX header");
+ PCX_toh(&pcxHeader);
+
+ CxMemFile buffer;
+ buffer.Open();
+
+ uint8_t c,n;
+ int32_t x,y;
+ if (head.biClrUsed==0){
+ for (y = head.biHeight-1; y >=0 ; y--){
+ for (int32_t p=0; p<pcxHeader.ColorPlanes; p++){
+ c=n=0;
+ for (x = 0; x<head.biWidth; x++){
+ if (p==0)
+ PCX_PackPixels(BlindGetPixelColor(x,y).rgbRed,c,n,buffer);
+ else if (p==1)
+ PCX_PackPixels(BlindGetPixelColor(x,y).rgbGreen,c,n,buffer);
+ else if (p==2)
+ PCX_PackPixels(BlindGetPixelColor(x,y).rgbBlue,c,n,buffer);
+#if CXIMAGE_SUPPORT_ALPHA
+ else if (p==3)
+ PCX_PackPixels(BlindAlphaGet(x,y),c,n,buffer);
+#endif //CXIMAGE_SUPPORT_ALPHA
+ }
+ PCX_PackPixels(-1-(head.biWidth&0x1),c,n,buffer);
+ }
+ }
+
+ hFile->Write(buffer.GetBuffer(false),buffer.Tell(),1);
+
+ } else if (head.biBitCount==8) {
+
+ for (y = head.biHeight-1; y >=0 ; y--){
+ c=n=0;
+ for (x = 0; x<head.biWidth; x++){
+ PCX_PackPixels(GetPixelIndex(x,y),c,n,buffer);
+ }
+ PCX_PackPixels(-1-(head.biWidth&0x1),c,n,buffer);
+ }
+
+ hFile->Write(buffer.GetBuffer(false),buffer.Tell(),1);
+
+ if (head.biBitCount == 8){
+ hFile->PutC(0x0C);
+ uint8_t* pal = (uint8_t*)malloc(768);
+ RGBQUAD c;
+ for (int32_t i=0;i<256;i++){
+ c=GetPaletteColor(i);
+ pal[3*i+0] = c.rgbRed;
+ pal[3*i+1] = c.rgbGreen;
+ pal[3*i+2] = c.rgbBlue;
+ }
+ hFile->Write(pal,768,1);
+ free(pal);
+ }
+ } else { //(head.biBitCount==4) || (head.biBitCount==1)
+
+ RGBQUAD *rgb = GetPalette();
+ bool binvert = false;
+ if (CompareColors(&rgb[0],&rgb[1])>0) binvert=(head.biBitCount==1);
+
+ uint8_t* plane = (uint8_t*)malloc(pcxHeader.BytesPerLine);
+ uint8_t* raw = (uint8_t*)malloc(head.biWidth);
+
+ for(y = head.biHeight-1; y >=0 ; y--) {
+
+ for( x = 0; x < head.biWidth; x++) raw[x] = (uint8_t)GetPixelIndex(x,y);
+
+ if (binvert) for( x = 0; x < head.biWidth; x++) raw[x] = 1-raw[x];
+
+ for( x = 0; x < pcxHeader.ColorPlanes; x++ ) {
+ PCX_PixelsToPlanes(raw, head.biWidth, plane, x);
+ PCX_PackPlanes(plane, pcxHeader.BytesPerLine, buffer);
+ }
+ }
+
+ free(plane);
+ free(raw);
+
+ hFile->Write(buffer.GetBuffer(false),buffer.Tell(),1);
+
+ }
+
+ } cx_catch {
+ if (strcmp(message,"")) strncpy(info.szLastError,message,255);
+ return false;
+ }
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+#endif // CXIMAGE_SUPPORT_ENCODE
+////////////////////////////////////////////////////////////////////////////////
+// Convert multi-plane format into 1 pixel per byte
+// from unpacked file data bitplanes[] into pixel row pixels[]
+// image Height rows, with each row having planes image planes each
+// bytesperline bytes
+bool CxImagePCX::PCX_PlanesToPixels(uint8_t * pixels, uint8_t * bitplanes, int16_t bytesperline, int16_t planes, int16_t bitsperpixel)
+{
+ int32_t i, j, npixels;
+ uint8_t * p;
+ if (planes > 4) return false;
+ if (bitsperpixel != 1) return false;
+
+ // Clear the pixel buffer
+ npixels = (bytesperline * 8) / bitsperpixel;
+ p = pixels;
+ while (--npixels >= 0) *p++ = 0;
+
+ // Do the format conversion
+ for (i = 0; i < planes; i++){
+ int32_t pixbit, bits, mask;
+ p = pixels;
+ pixbit = (1 << i); // pixel bit for this plane
+ for (j = 0; j < bytesperline; j++){
+ bits = *bitplanes++;
+ for (mask = 0X80; mask != 0; mask >>= 1, p++)
+ if (bits & mask) *p |= pixbit;
+ }
+ }
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+// convert packed pixel format into 1 pixel per byte
+// from unpacked file data bitplanes[] into pixel row pixels[]
+// image Height rows, with each row having planes image planes each
+// bytesperline bytes
+bool CxImagePCX::PCX_UnpackPixels(uint8_t * pixels, uint8_t * bitplanes, int16_t bytesperline, int16_t planes, int16_t bitsperpixel)
+{
+ register int32_t bits;
+ if (planes != 1) return false;
+
+ if (bitsperpixel == 8){ // 8 bits/pixels, no unpacking needed
+ while (bytesperline-- > 0) *pixels++ = *bitplanes++;
+ } else if (bitsperpixel == 4){ // 4 bits/pixel, two pixels per byte
+ while (bytesperline-- > 0){
+ bits = *bitplanes++;
+ *pixels++ = (uint8_t)((bits >> 4) & 0X0F);
+ *pixels++ = (uint8_t)((bits) & 0X0F);
+ }
+ } else if (bitsperpixel == 2){ // 2 bits/pixel, four pixels per byte
+ while (bytesperline-- > 0){
+ bits = *bitplanes++;
+ *pixels++ = (uint8_t)((bits >> 6) & 0X03);
+ *pixels++ = (uint8_t)((bits >> 4) & 0X03);
+ *pixels++ = (uint8_t)((bits >> 2) & 0X03);
+ *pixels++ = (uint8_t)((bits) & 0X03);
+ }
+ } else if (bitsperpixel == 1){ // 1 bits/pixel, 8 pixels per byte
+ while (bytesperline-- > 0){
+ bits = *bitplanes++;
+ *pixels++ = ((bits & 0X80) != 0);
+ *pixels++ = ((bits & 0X40) != 0);
+ *pixels++ = ((bits & 0X20) != 0);
+ *pixels++ = ((bits & 0X10) != 0);
+ *pixels++ = ((bits & 0X08) != 0);
+ *pixels++ = ((bits & 0X04) != 0);
+ *pixels++ = ((bits & 0X02) != 0);
+ *pixels++ = ((bits & 0X01) != 0);
+ }
+ }
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/* PCX_PackPixels(const int32_t p,uint8_t &c, uint8_t &n, int32_t &l, CxFile &f)
+ * p = current pixel (-1 ends the line -2 ends odd line)
+ * c = previous pixel
+ * n = number of consecutive pixels
+ */
+void CxImagePCX::PCX_PackPixels(const int32_t p,uint8_t &c, uint8_t &n, CxFile &f)
+{
+ if (p!=c && n){
+ if (n==1 && c<0xC0){
+ f.PutC(c);
+ } else {
+ f.PutC(0xC0|n);
+ f.PutC(c);
+ }
+ n=0;
+ }
+ if (n==0x3F) {
+ f.PutC(0xFF);
+ f.PutC(c);
+ n=0;
+ }
+ if (p==-2) f.PutC(0);
+ c=(uint8_t)p;
+ n++;
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImagePCX::PCX_PackPlanes(uint8_t* buff, const int32_t size, CxFile &f)
+{
+ uint8_t *start,*end;
+ uint8_t c, previous, count;
+
+ start = buff;
+ end = buff + size;
+ previous = *start++;
+ count = 1;
+
+ while (start < end) {
+ c = *start++;
+ if (c == previous && count < 63) {
+ ++count;
+ continue;
+ }
+
+ if (count > 1 || (previous & 0xc0) == 0xc0) {
+ f.PutC( count | 0xc0 );
+ }
+ f.PutC(previous);
+ previous = c;
+ count = 1;
+ }
+
+ if (count > 1 || (previous & 0xc0) == 0xc0) {
+ count |= 0xc0;
+ f.PutC(count);
+ }
+ f.PutC(previous);
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImagePCX::PCX_PixelsToPlanes(uint8_t* raw, int32_t width, uint8_t* buf, int32_t plane)
+{
+ int32_t cbit, x, mask;
+ uint8_t *cp = buf-1;
+
+ mask = 1 << plane;
+ cbit = -1;
+ for( x = 0; x < width; x++ ) {
+ if( cbit < 0 ) {
+ cbit = 7;
+ *++cp = 0;
+ }
+ if( raw[x] & mask )
+ *cp |= (1<<cbit);
+ --cbit;
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImagePCX::PCX_toh(PCXHEADER* p)
+{
+ p->Xmin = m_ntohs(p->Xmin);
+ p->Ymin = m_ntohs(p->Ymin);
+ p->Xmax = m_ntohs(p->Xmax);
+ p->Ymax = m_ntohs(p->Ymax);
+ p->Hres = m_ntohs(p->Hres);
+ p->Vres = m_ntohs(p->Vres);
+ p->BytesPerLine = m_ntohs(p->BytesPerLine);
+ p->PaletteType = m_ntohs(p->PaletteType);
+}
+////////////////////////////////////////////////////////////////////////////////
+#endif // CXIMAGE_SUPPORT_PCX
diff --git a/smelt/sdl/CxImage/ximapcx.h b/smelt/sdl/CxImage/ximapcx.h new file mode 100644 index 0000000..05c5ad0 --- /dev/null +++ b/smelt/sdl/CxImage/ximapcx.h @@ -0,0 +1,64 @@ +/*
+ * File: ximapcx.h
+ * Purpose: PCX Image Class Loader and Writer
+ */
+/* ==========================================================
+ * CxImagePCX (c) 05/Jan/2002 Davide Pizzolato - www.xdp.it
+ * For conditions of distribution and use, see copyright notice in ximage.h
+ *
+ * Parts of the code come from Paintlib: Copyright (c) 1996-1998 Ulrich von Zadow
+ * ==========================================================
+ */
+#if !defined(__ximaPCX_h)
+#define __ximaPCX_h
+
+#include "ximage.h"
+
+#if CXIMAGE_SUPPORT_PCX
+
+class CxImagePCX: public CxImage
+{
+// PCX Image File
+#pragma pack(1)
+typedef struct tagPCXHEADER
+{
+ char Manufacturer; // always 0X0A
+ char Version; // version number
+ char Encoding; // always 1
+ char BitsPerPixel; // color bits
+ uint16_t Xmin, Ymin; // image origin
+ uint16_t Xmax, Ymax; // image dimensions
+ uint16_t Hres, Vres; // resolution values
+ uint8_t ColorMap[16][3]; // color palette
+ char Reserved;
+ char ColorPlanes; // color planes
+ uint16_t BytesPerLine; // line buffer size
+ uint16_t PaletteType; // grey or color palette
+ char Filter[58];
+} PCXHEADER;
+#pragma pack()
+
+public:
+ CxImagePCX(): CxImage(CXIMAGE_FORMAT_PCX) {}
+
+// bool Load(const TCHAR * imageFileName){ return CxImage::Load(imageFileName,CXIMAGE_FORMAT_PCX);}
+// bool Save(const TCHAR * imageFileName){ return CxImage::Save(imageFileName,CXIMAGE_FORMAT_PCX);}
+ bool Decode(CxFile * hFile);
+ bool Decode(FILE *hFile) { CxIOFile file(hFile); return Decode(&file); }
+
+#if CXIMAGE_SUPPORT_ENCODE
+ bool Encode(CxFile * hFile);
+ bool Encode(FILE *hFile) { CxIOFile file(hFile); return Encode(&file); }
+#endif // CXIMAGE_SUPPORT_ENCODE
+protected:
+ bool PCX_PlanesToPixels(uint8_t * pixels, uint8_t * bitplanes, int16_t bytesperline, int16_t planes, int16_t bitsperpixel);
+ bool PCX_UnpackPixels(uint8_t * pixels, uint8_t * bitplanes, int16_t bytesperline, int16_t planes, int16_t bitsperpixel);
+ void PCX_PackPixels(const int32_t p,uint8_t &c, uint8_t &n, CxFile &f);
+ void PCX_PackPlanes(uint8_t* buff, const int32_t size, CxFile &f);
+ void PCX_PixelsToPlanes(uint8_t* raw, int32_t width, uint8_t* buf, int32_t plane);
+ void PCX_toh(PCXHEADER* p);
+};
+
+#endif
+
+#endif
diff --git a/smelt/sdl/CxImage/ximapng.cpp b/smelt/sdl/CxImage/ximapng.cpp new file mode 100644 index 0000000..db2f636 --- /dev/null +++ b/smelt/sdl/CxImage/ximapng.cpp @@ -0,0 +1,644 @@ +/*
+ * File: ximapng.cpp
+ * Purpose: Platform Independent PNG Image Class Loader and Writer
+ * 07/Aug/2001 Davide Pizzolato - www.xdp.it
+ * CxImage version 7.0.0 31/Dec/2010
+ */
+
+#include "ximapng.h"
+
+#if CXIMAGE_SUPPORT_PNG
+
+#include "ximaiter.h"
+
+////////////////////////////////////////////////////////////////////////////////
+void CxImagePNG::ima_png_error(png_struct *png_ptr, char *message)
+{
+ strcpy(info.szLastError,message);
+#if PNG_LIBPNG_VER > 10399
+ longjmp(png_jmpbuf(png_ptr), 1);
+#else
+ longjmp(png_ptr->jmpbuf, 1);
+#endif
+}
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_SUPPORT_DECODE
+////////////////////////////////////////////////////////////////////////////////
+void CxImagePNG::expand2to4bpp(uint8_t* prow)
+{
+ uint8_t *psrc,*pdst;
+ uint8_t pos,idx;
+ for(int32_t x=head.biWidth-1;x>=0;x--){
+ psrc = prow + ((2*x)>>3);
+ pdst = prow + ((4*x)>>3);
+ pos = (uint8_t)(2*(3-x%4));
+ idx = (uint8_t)((*psrc & (0x03<<pos))>>pos);
+ pos = (uint8_t)(4*(1-x%2));
+ *pdst &= ~(0x0F<<pos);
+ *pdst |= (idx & 0x0F)<<pos;
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+bool CxImagePNG::Decode(CxFile *hFile)
+{
+ png_struct *png_ptr;
+ png_info *info_ptr;
+ uint8_t *row_pointers=NULL;
+ CImageIterator iter(this);
+
+ cx_try
+ {
+ /* Create and initialize the png_struct with the desired error handler
+ * functions. If you want to use the default stderr and longjump method,
+ * you can supply NULL for the last three parameters. We also supply the
+ * the compiler header file version, so that we know if the application
+ * was compiled with a compatible version of the library. REQUIRED */
+ png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING,(void *)NULL,NULL,NULL);
+ if (png_ptr == NULL) cx_throw("Failed to create PNG structure");
+
+ /* Allocate/initialize the memory for image information. REQUIRED. */
+ info_ptr = png_create_info_struct(png_ptr);
+ if (info_ptr == NULL) {
+ png_destroy_read_struct(&png_ptr, (png_infopp)NULL, (png_infopp)NULL);
+ cx_throw("Failed to initialize PNG info structure");
+ }
+
+ /* Set error handling if you are using the setjmp/longjmp method (this is
+ * the normal method of doing things with libpng). REQUIRED unless you
+ * set up your own error handlers in the png_create_read_struct() earlier. */
+#if PNG_LIBPNG_VER > 10399
+ if (setjmp(png_jmpbuf(png_ptr))) {
+#else
+ if (setjmp(png_ptr->jmpbuf)) {
+#endif
+ /* Free all of the memory associated with the png_ptr and info_ptr */
+ delete [] row_pointers;
+ png_destroy_read_struct(&png_ptr, &info_ptr, (png_infopp)NULL);
+ cx_throw("");
+ }
+
+ // use custom I/O functions
+ png_set_read_fn(png_ptr, hFile, /*(png_rw_ptr)*/user_read_data);
+ png_set_error_fn(png_ptr,info.szLastError,/*(png_error_ptr)*/user_error_fn,NULL);
+
+ /* read the file information */
+ png_read_info(png_ptr, info_ptr);
+
+ png_uint_32 _width,_height;
+ int _bit_depth,_color_type,_interlace_type,_compression_type,_filter_type;
+#if PNG_LIBPNG_VER > 10399
+ png_get_IHDR(png_ptr,info_ptr,&_width,&_height,&_bit_depth,&_color_type,
+ &_interlace_type,&_compression_type,&_filter_type);
+#else
+ _width=info_ptr->width;
+ _height=info_ptr->height;
+ _bit_depth=info_ptr->bit_depth;
+ _color_type=info_ptr->color_type;
+ _interlace_type=info_ptr->interlace_type;
+ //_compression_type=info_ptr->compression_type;
+ //_filter_type=info_ptr->filter_type;
+#endif
+
+ if (info.nEscape == -1){
+ head.biWidth = _width;
+ head.biHeight= _height;
+ info.dwType = CXIMAGE_FORMAT_PNG;
+#if PNG_LIBPNG_VER > 10399
+ longjmp(png_jmpbuf(png_ptr), 1);
+#else
+ longjmp(png_ptr->jmpbuf, 1);
+#endif
+ }
+
+ /* calculate new number of channels */
+ int32_t channels=0;
+ switch(_color_type){
+ case PNG_COLOR_TYPE_GRAY:
+ case PNG_COLOR_TYPE_PALETTE:
+ channels = 1;
+ break;
+ case PNG_COLOR_TYPE_GRAY_ALPHA:
+ channels = 2;
+ break;
+ case PNG_COLOR_TYPE_RGB:
+ channels = 3;
+ break;
+ case PNG_COLOR_TYPE_RGB_ALPHA:
+ channels = 4;
+ break;
+ default:
+ strcpy(info.szLastError,"unknown PNG color type");
+#if PNG_LIBPNG_VER > 10399
+ longjmp(png_jmpbuf(png_ptr), 1);
+#else
+ longjmp(png_ptr->jmpbuf, 1);
+#endif
+ }
+
+ //find the right pixel depth used for cximage
+#if PNG_LIBPNG_VER > 10399
+ int pixel_depth = _bit_depth * png_get_channels(png_ptr,info_ptr);
+#else
+ int pixel_depth = info_ptr->pixel_depth;
+#endif
+ if (channels == 1 && pixel_depth>8) pixel_depth=8;
+ if (channels == 2) pixel_depth=8;
+ if (channels >= 3) pixel_depth=24;
+
+ if (!Create(_width, _height, pixel_depth, CXIMAGE_FORMAT_PNG)){
+#if PNG_LIBPNG_VER > 10399
+ longjmp(png_jmpbuf(png_ptr), 1);
+#else
+ longjmp(png_ptr->jmpbuf, 1);
+#endif
+ }
+
+ /* get metrics */
+ png_uint_32 _x_pixels_per_unit,_y_pixels_per_unit;
+ int _phys_unit_type;
+#if PNG_LIBPNG_VER > 10399
+ png_get_pHYs(png_ptr,info_ptr,&_x_pixels_per_unit,&_y_pixels_per_unit,&_phys_unit_type);
+#else
+ _x_pixels_per_unit=info_ptr->x_pixels_per_unit;
+ _y_pixels_per_unit=info_ptr->y_pixels_per_unit;
+ _phys_unit_type=info_ptr->phys_unit_type;
+#endif
+ switch (_phys_unit_type)
+ {
+ case PNG_RESOLUTION_UNKNOWN:
+ SetXDPI(_x_pixels_per_unit);
+ SetYDPI(_y_pixels_per_unit);
+ break;
+ case PNG_RESOLUTION_METER:
+ SetXDPI((long)floor(_x_pixels_per_unit * 254.0 / 10000.0 + 0.5));
+ SetYDPI((long)floor(_y_pixels_per_unit * 254.0 / 10000.0 + 0.5));
+ break;
+ }
+
+ int _num_palette;
+ png_colorp _palette;
+#if PNG_LIBPNG_VER > 10399
+ png_get_PLTE(png_ptr,info_ptr,&_palette,&_num_palette);
+#else
+ _num_palette=info_ptr->num_palette;
+ _palette=info_ptr->palette;
+#endif
+ if (_num_palette>0){
+ SetPalette((rgb_color*)_palette,_num_palette);
+ SetClrImportant(_num_palette);
+ } else if (_bit_depth ==2) { //<DP> needed for 2 bpp grayscale PNGs
+ SetPaletteColor(0,0,0,0);
+ SetPaletteColor(1,85,85,85);
+ SetPaletteColor(2,170,170,170);
+ SetPaletteColor(3,255,255,255);
+ } else SetGrayPalette(); //<DP> needed for grayscale PNGs
+
+ int nshift = max(0,(_bit_depth>>3)-1)<<3;
+
+ png_bytep _trans_alpha;
+ int _num_trans;
+ png_color_16p _trans_color;
+#if PNG_LIBPNG_VER > 10399
+ png_get_tRNS(png_ptr,info_ptr,&_trans_alpha,&_num_trans,&_trans_color);
+#else
+ _num_trans=info_ptr->num_trans;
+#endif
+ if (_num_trans!=0){ //palette transparency
+ if (_num_trans==1){
+ if (_color_type == PNG_COLOR_TYPE_PALETTE){
+ info.nBkgndIndex = _trans_color->index;
+ } else{
+ info.nBkgndIndex = _trans_color->gray>>nshift;
+ }
+ }
+ if (_num_trans>1){
+ RGBQUAD* pal=GetPalette();
+ if (pal){
+ uint32_t ip;
+ if(_trans_alpha != 0) {
+ for (ip=0;ip<min(head.biClrUsed,(unsigned long)_num_trans);ip++)
+ pal[ip].rgbReserved=_trans_alpha[ip];
+ }
+ for (ip=_num_trans;ip<head.biClrUsed;ip++){
+ pal[ip].rgbReserved=255;
+ }
+ info.bAlphaPaletteEnabled=true;
+ }
+ }
+ }
+
+ if (channels == 3){ //check RGB binary transparency
+ /* seems unnecessary to call again, but the conditional must be important so... */
+ if (png_get_tRNS(png_ptr,info_ptr,&_trans_alpha,&_num_trans,&_trans_color)){
+ info.nBkgndColor.rgbRed = (uint8_t)(_trans_color->red>>nshift);
+ info.nBkgndColor.rgbGreen = (uint8_t)(_trans_color->green>>nshift);
+ info.nBkgndColor.rgbBlue = (uint8_t)(_trans_color->blue>>nshift);
+ info.nBkgndColor.rgbReserved = 0;
+ info.nBkgndIndex = 0;
+ }
+ }
+
+ int32_t alpha_present = (channels - 1) % 2;
+ if (alpha_present){
+#if CXIMAGE_SUPPORT_ALPHA // <vho>
+ AlphaCreate();
+#else
+ png_set_strip_alpha(png_ptr);
+#endif //CXIMAGE_SUPPORT_ALPHA
+ }
+
+ // <vho> - flip the RGB pixels to BGR (or RGBA to BGRA)
+ if (_color_type & PNG_COLOR_MASK_COLOR){
+ png_set_bgr(png_ptr);
+ }
+
+ // <vho> - handle cancel
+ if (info.nEscape)
+#if PNG_LIBPNG_VER > 10399
+ longjmp(png_jmpbuf(png_ptr), 1);
+#else
+ longjmp(png_ptr->jmpbuf, 1);
+#endif
+
+ // row_bytes is the width x number of channels x (bit-depth / 8)
+#if PNG_LIBPNG_VER > 10399
+ row_pointers = new uint8_t[png_get_rowbytes(png_ptr,info_ptr) + 8];
+#else
+ row_pointers = new uint8_t[info_ptr->rowbytes + 8];
+#endif
+
+
+ // turn on interlace handling
+ int32_t number_passes = png_set_interlace_handling(png_ptr);
+
+ if (number_passes>1){
+ SetCodecOption( (ENCODE_INTERLACE) | GetCodecOption(CXIMAGE_FORMAT_PNG));
+ } else {
+ SetCodecOption(~(ENCODE_INTERLACE) & GetCodecOption(CXIMAGE_FORMAT_PNG));
+ }
+
+ int chan_offset = _bit_depth >> 3;
+#if PNG_LIBPNG_VER > 10399
+ int pixel_offset = (_bit_depth * png_get_channels(png_ptr,info_ptr)) >> 3;
+#else
+ int pixel_offset = info_ptr->pixel_depth >> 3;
+#endif
+
+ for (int32_t pass=0; pass < number_passes; pass++) {
+ iter.Upset();
+ int32_t y=0;
+ do {
+
+ // <vho> - handle cancel
+ if (info.nEscape)
+#if PNG_LIBPNG_VER > 10399
+ longjmp(png_jmpbuf(png_ptr), 1);
+#else
+ longjmp(png_ptr->jmpbuf, 1);
+#endif
+
+#if CXIMAGE_SUPPORT_ALPHA // <vho>
+ if (AlphaIsValid()) {
+
+ //compute the correct position of the line
+ int32_t ax,ay;
+ ay = head.biHeight-1-y;
+ uint8_t* prow= iter.GetRow(ay);
+
+ //recover data from previous scan
+ if (_interlace_type && pass>0 && pass!=7){
+ for(ax=0;ax<head.biWidth;ax++){
+ int32_t px = ax * pixel_offset;
+ if (channels == 2){
+ row_pointers[px] = prow[ax];
+ row_pointers[px+chan_offset]=AlphaGet(ax,ay);
+ } else {
+ int32_t qx = ax * 3;
+ row_pointers[px] =prow[qx];
+ row_pointers[px+chan_offset] =prow[qx+1];
+ row_pointers[px+chan_offset*2]=prow[qx+2];
+ row_pointers[px+chan_offset*3]=AlphaGet(ax,ay);
+ }
+ }
+ }
+
+ //read next row
+ png_read_row(png_ptr, row_pointers, NULL);
+
+ //RGBA -> RGB + A
+ for(ax=0;ax<head.biWidth;ax++){
+ int32_t px = ax * pixel_offset;
+ if (channels == 2){
+ prow[ax] = row_pointers[px];
+ AlphaSet(ax,ay,row_pointers[px+chan_offset]);
+ } else {
+ int32_t qx = ax * 3;
+ prow[qx] =row_pointers[px];
+ prow[qx+1]=row_pointers[px+chan_offset];
+ prow[qx+2]=row_pointers[px+chan_offset*2];
+ AlphaSet(ax,ay,row_pointers[px+chan_offset*3]);
+ }
+ }
+ } else
+#endif // CXIMAGE_SUPPORT_ALPHA // vho
+ {
+ //recover data from previous scan
+ if (_interlace_type && pass>0){
+#if PNG_LIBPNG_VER > 10399
+ iter.GetRow(row_pointers, png_get_rowbytes(png_ptr,info_ptr));
+#else
+ iter.GetRow(row_pointers, info_ptr->rowbytes);
+#endif
+ //re-expand buffer for images with bit depth > 8
+ if (_bit_depth > 8){
+ for(int32_t ax=(head.biWidth*channels-1);ax>=0;ax--)
+ row_pointers[ax*chan_offset] = row_pointers[ax];
+ }
+ }
+
+ //read next row
+ png_read_row(png_ptr, row_pointers, NULL);
+
+ //shrink 16 bit depth images down to 8 bits
+ if (_bit_depth > 8){
+ for(int32_t ax=0;ax<(head.biWidth*channels);ax++)
+ row_pointers[ax] = row_pointers[ax*chan_offset];
+ }
+
+ //copy the pixels
+#if PNG_LIBPNG_VER > 10399
+ iter.SetRow(row_pointers, png_get_rowbytes(png_ptr,info_ptr));
+#else
+ iter.SetRow(row_pointers, info_ptr->rowbytes);
+#endif
+ //<DP> expand 2 bpp images only in the last pass
+ if (_bit_depth==2 && pass==(number_passes-1))
+ expand2to4bpp(iter.GetRow());
+
+ //go on
+ iter.PrevRow();
+ }
+
+ y++;
+ } while(y<head.biHeight);
+ }
+
+ delete [] row_pointers;
+ row_pointers = NULL;
+
+ /* read the rest of the file, getting any additional chunks in info_ptr - REQUIRED */
+ png_read_end(png_ptr, info_ptr);
+
+ /* clean up after the read, and free any memory allocated - REQUIRED */
+ png_destroy_read_struct(&png_ptr, &info_ptr, (png_infopp)NULL);
+
+ } cx_catch {
+ if (strcmp(message,"")) strncpy(info.szLastError,message,255);
+ if (info.nEscape == -1 && info.dwType == CXIMAGE_FORMAT_PNG) return true;
+ return false;
+ }
+ /* that's it */
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+#endif //CXIMAGE_SUPPORT_DECODE
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_SUPPORT_ENCODE
+////////////////////////////////////////////////////////////////////////////////
+bool CxImagePNG::Encode(CxFile *hFile)
+{
+ if (EncodeSafeCheck(hFile)) return false;
+
+ CImageIterator iter(this);
+ uint8_t trans[256]; //for transparency (don't move)
+ png_struct *png_ptr;
+ png_info *info_ptr;
+
+ cx_try
+ {
+ /* Create and initialize the png_struct with the desired error handler
+ * functions. If you want to use the default stderr and longjump method,
+ * you can supply NULL for the last three parameters. We also check that
+ * the library version is compatible with the one used at compile time,
+ * in case we are using dynamically linked libraries. REQUIRED.
+ */
+ png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING,(void *)NULL,NULL,NULL);
+ if (png_ptr == NULL) cx_throw("Failed to create PNG structure");
+
+ /* Allocate/initialize the image information data. REQUIRED */
+ info_ptr = png_create_info_struct(png_ptr);
+ if (info_ptr == NULL){
+ png_destroy_write_struct(&png_ptr, (png_infopp)NULL);
+ cx_throw("Failed to initialize PNG info structure");
+ }
+
+ /* Set error handling. REQUIRED if you aren't supplying your own
+ * error hadnling functions in the png_create_write_struct() call.
+ */
+ if (setjmp(png_ptr->jmpbuf)){
+ /* If we get here, we had a problem reading the file */
+ if (info_ptr->palette) free(info_ptr->palette);
+ png_destroy_write_struct(&png_ptr, (png_infopp)&info_ptr);
+ cx_throw("Error saving PNG file");
+ }
+
+ /* set up the output control */
+ //png_init_io(png_ptr, hFile);
+
+ // use custom I/O functions
+ png_set_write_fn(png_ptr,hFile,/*(png_rw_ptr)*/user_write_data,/*(png_flush_ptr)*/user_flush_data);
+
+ /* set the file information here */
+ info_ptr->width = GetWidth();
+ info_ptr->height = GetHeight();
+ info_ptr->pixel_depth = (uint8_t)GetBpp();
+ info_ptr->channels = (GetBpp()>8) ? (uint8_t)3: (uint8_t)1;
+ info_ptr->bit_depth = (uint8_t)(GetBpp()/info_ptr->channels);
+ info_ptr->compression_type = info_ptr->filter_type = 0;
+ info_ptr->valid = 0;
+
+ // set interlace type
+ DWORD codec_opt = GetCodecOption(CXIMAGE_FORMAT_PNG);
+ if (codec_opt & CxImagePNG::ENCODE_INTERLACE)
+ info_ptr->interlace_type = PNG_INTERLACE_ADAM7;
+ else
+ info_ptr->interlace_type = PNG_INTERLACE_NONE;
+
+ /* set compression level */
+ int32_t compress_level;
+ switch (codec_opt & CxImagePNG::ENCODE_COMPRESSION_MASK)
+ {
+ case ENCODE_NO_COMPRESSION:
+ compress_level = Z_NO_COMPRESSION;
+ break;
+ case ENCODE_BEST_SPEED:
+ compress_level = Z_BEST_SPEED;
+ break;
+ case ENCODE_BEST_COMPRESSION:
+ compress_level = Z_BEST_COMPRESSION;
+ break;
+ default:
+ compress_level = Z_DEFAULT_COMPRESSION;
+ break;
+ }
+ png_set_compression_level(png_ptr, compress_level);
+
+ bool bGrayScale = IsGrayScale();
+
+ if (GetNumColors()){
+ if (bGrayScale){
+ info_ptr->color_type = PNG_COLOR_TYPE_GRAY;
+ } else {
+ info_ptr->color_type = PNG_COLOR_TYPE_PALETTE;
+ }
+ } else {
+ info_ptr->color_type = PNG_COLOR_TYPE_RGB;
+ }
+#if CXIMAGE_SUPPORT_ALPHA
+ if (AlphaIsValid()){
+ info_ptr->color_type |= PNG_COLOR_MASK_ALPHA;
+ info_ptr->channels++;
+ info_ptr->bit_depth = 8;
+ info_ptr->pixel_depth += 8;
+ }
+#endif
+
+ /* set background */
+ png_color_16 image_background={ 0, 255, 255, 255, 0 };
+ RGBQUAD tc = GetTransColor();
+ if (info.nBkgndIndex>=0) {
+ image_background.blue = tc.rgbBlue;
+ image_background.green = tc.rgbGreen;
+ image_background.red = tc.rgbRed;
+ }
+ png_set_bKGD(png_ptr, info_ptr, &image_background);
+
+ /* set metrics */
+ png_set_pHYs(png_ptr, info_ptr, head.biXPelsPerMeter, head.biYPelsPerMeter, PNG_RESOLUTION_METER);
+
+ png_set_IHDR(png_ptr, info_ptr, info_ptr->width, info_ptr->height, info_ptr->bit_depth,
+ info_ptr->color_type, info_ptr->interlace_type,
+ PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
+
+ //<DP> simple transparency
+ if (info.nBkgndIndex >= 0){
+ info_ptr->num_trans = 1;
+ info_ptr->valid |= PNG_INFO_tRNS;
+ info_ptr->trans_alpha = trans;
+ info_ptr->trans_color.index = (uint8_t)info.nBkgndIndex;
+ info_ptr->trans_color.red = tc.rgbRed;
+ info_ptr->trans_color.green = tc.rgbGreen;
+ info_ptr->trans_color.blue = tc.rgbBlue;
+ info_ptr->trans_color.gray = info_ptr->trans_color.index;
+
+ // the transparency indexes start from 0 for non grayscale palette
+ if (!bGrayScale && head.biClrUsed && info.nBkgndIndex)
+ SwapIndex(0,(uint8_t)info.nBkgndIndex);
+ }
+
+ /* set the palette if there is one */
+ if (GetPalette()){
+ if (!bGrayScale){
+ info_ptr->valid |= PNG_INFO_PLTE;
+ }
+
+ int32_t nc = GetClrImportant();
+ if (nc==0) nc = GetNumColors();
+
+ if (info.bAlphaPaletteEnabled){
+ for(uint16_t ip=0; ip<nc;ip++)
+ trans[ip]=GetPaletteColor((uint8_t)ip).rgbReserved;
+ info_ptr->num_trans = (uint16_t)nc;
+ info_ptr->valid |= PNG_INFO_tRNS;
+ info_ptr->trans_alpha = trans;
+ }
+
+ // copy the palette colors
+ info_ptr->palette = new png_color[nc];
+ info_ptr->num_palette = (png_uint_16) nc;
+ for (int32_t i=0; i<nc; i++)
+ GetPaletteColor(i, &info_ptr->palette[i].red, &info_ptr->palette[i].green, &info_ptr->palette[i].blue);
+ }
+
+#if CXIMAGE_SUPPORT_ALPHA // <vho>
+ //Merge the transparent color with the alpha channel
+ if (AlphaIsValid() && head.biBitCount==24 && info.nBkgndIndex>=0){
+ for(int32_t y=0; y < head.biHeight; y++){
+ for(int32_t x=0; x < head.biWidth ; x++){
+ RGBQUAD c=GetPixelColor(x,y,false);
+ if (*(int32_t*)&c==*(int32_t*)&tc)
+ AlphaSet(x,y,0);
+ } } }
+#endif // CXIMAGE_SUPPORT_ALPHA // <vho>
+
+ int32_t row_size = max(info.dwEffWidth, info_ptr->width*info_ptr->channels*(info_ptr->bit_depth/8));
+ info_ptr->rowbytes = row_size;
+ uint8_t *row_pointers = new uint8_t[row_size];
+
+ /* write the file information */
+ png_write_info(png_ptr, info_ptr);
+
+ //interlace handling
+ int32_t num_pass = png_set_interlace_handling(png_ptr);
+ for (int32_t pass = 0; pass < num_pass; pass++){
+ //write image
+ iter.Upset();
+ int32_t ay=head.biHeight-1;
+ RGBQUAD c;
+ do {
+#if CXIMAGE_SUPPORT_ALPHA // <vho>
+ if (AlphaIsValid()){
+ for (int32_t ax=head.biWidth-1; ax>=0;ax--){
+ c = BlindGetPixelColor(ax,ay);
+ int32_t px = ax * info_ptr->channels;
+ if (!bGrayScale){
+ row_pointers[px++]=c.rgbRed;
+ row_pointers[px++]=c.rgbGreen;
+ }
+ row_pointers[px++]=c.rgbBlue;
+ row_pointers[px] = AlphaGet(ax,ay);
+ }
+ png_write_row(png_ptr, row_pointers);
+ ay--;
+ }
+ else
+#endif //CXIMAGE_SUPPORT_ALPHA // <vho>
+ {
+ iter.GetRow(row_pointers, row_size);
+ if (info_ptr->color_type == PNG_COLOR_TYPE_RGB) //HACK BY OP
+ RGBtoBGR(row_pointers, row_size);
+ png_write_row(png_ptr, row_pointers);
+ }
+ } while(iter.PrevRow());
+ }
+
+ delete [] row_pointers;
+ row_pointers = NULL;
+
+ //if necessary, restore the original palette
+ if (!bGrayScale && head.biClrUsed && info.nBkgndIndex>0)
+ SwapIndex((uint8_t)info.nBkgndIndex,0);
+
+ /* It is REQUIRED to call this to finish writing the rest of the file */
+ png_write_end(png_ptr, info_ptr);
+
+ /* if you malloced the palette, free it here */
+ if (info_ptr->palette){
+ delete [] (info_ptr->palette);
+ info_ptr->palette = NULL;
+ }
+
+ /* clean up after the write, and free any memory allocated */
+ png_destroy_write_struct(&png_ptr, (png_infopp)&info_ptr);
+
+ } cx_catch {
+ if (strcmp(message,"")) strncpy(info.szLastError,message,255);
+ return FALSE;
+ }
+ /* that's it */
+ return TRUE;
+}
+////////////////////////////////////////////////////////////////////////////////
+#endif // CXIMAGE_SUPPORT_ENCODE
+////////////////////////////////////////////////////////////////////////////////
+#endif // CXIMAGE_SUPPORT_PNG
diff --git a/smelt/sdl/CxImage/ximapng.h b/smelt/sdl/CxImage/ximapng.h new file mode 100644 index 0000000..bc53e52 --- /dev/null +++ b/smelt/sdl/CxImage/ximapng.h @@ -0,0 +1,95 @@ +/*
+ * File: ximapng.h
+ * Purpose: PNG Image Class Loader and Writer
+ */
+/* ==========================================================
+ * CxImagePNG (c) 07/Aug/2001 Davide Pizzolato - www.xdp.it
+ * For conditions of distribution and use, see copyright notice in ximage.h
+ *
+ * Special thanks to Troels Knakkergaard for new features, enhancements and bugfixes
+ *
+ * original CImagePNG and CImageIterator implementation are:
+ * Copyright: (c) 1995, Alejandro Aguilar Sierra <asierra(at)servidor(dot)unam(dot)mx>
+ *
+ * libpng Copyright (c) 1998-2003 Glenn Randers-Pehrson
+ * ==========================================================
+ */
+#if !defined(__ximaPNG_h)
+#define __ximaPNG_h
+
+#include "ximage.h"
+
+#if CXIMAGE_SUPPORT_PNG
+
+extern "C" {
+#ifdef _LINUX
+ #undef _DLL
+ #include <png.h>
+#else
+ #include "png.h"
+#endif
+}
+
+class CxImagePNG: public CxImage
+{
+public:
+ CxImagePNG(): CxImage(CXIMAGE_FORMAT_PNG) {}
+
+// bool Load(const TCHAR * imageFileName){ return CxImage::Load(imageFileName,CXIMAGE_FORMAT_PNG);}
+// bool Save(const TCHAR * imageFileName){ return CxImage::Save(imageFileName,CXIMAGE_FORMAT_PNG);}
+ bool Decode(CxFile * hFile);
+ bool Decode(FILE *hFile) { CxIOFile file(hFile); return Decode(&file); }
+
+#if CXIMAGE_SUPPORT_ENCODE
+ bool Encode(CxFile * hFile);
+ bool Encode(FILE *hFile) { CxIOFile file(hFile); return Encode(&file); }
+#endif // CXIMAGE_SUPPORT_ENCODE
+
+ enum CODEC_OPTION
+ {
+ ENCODE_INTERLACE = 0x01,
+ // Exclusive compression types : 3 bit wide field
+ ENCODE_COMPRESSION_MASK = 0x0E,
+ ENCODE_NO_COMPRESSION = 1 << 1,
+ ENCODE_BEST_SPEED = 2 << 1,
+ ENCODE_BEST_COMPRESSION = 3 << 1,
+ ENCODE_DEFAULT_COMPRESSION = 4 << 1
+ };
+
+protected:
+ void ima_png_error(png_struct *png_ptr, char *message);
+ void expand2to4bpp(uint8_t* prow);
+
+ static void PNGAPI user_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
+ {
+ CxFile* hFile = (CxFile*)png_get_io_ptr(png_ptr);
+ if (hFile == NULL || hFile->Read(data,1,length) != length) png_error(png_ptr, "Read Error");
+ }
+
+ static void PNGAPI user_write_data(png_structp png_ptr, png_bytep data, png_size_t length)
+ {
+ CxFile* hFile = (CxFile*)png_get_io_ptr(png_ptr);
+ if (hFile == NULL || hFile->Write(data,1,length) != length) png_error(png_ptr, "Write Error");
+ }
+
+ static void PNGAPI user_flush_data(png_structp png_ptr)
+ {
+ CxFile* hFile = (CxFile*)png_get_io_ptr(png_ptr);
+ if (hFile == NULL || !hFile->Flush()) png_error(png_ptr, "Flush Error");
+ }
+
+ static void PNGAPI user_error_fn(png_structp png_ptr,png_const_charp error_msg)
+ {
+#if PNG_LIBPNG_VER > 10399
+ strncpy((char*)png_get_error_ptr(png_ptr),error_msg,255);
+ longjmp(png_jmpbuf(png_ptr), 1);
+#else
+ strncpy((char*)png_ptr->error_ptr,error_msg,255);
+ longjmp(png_ptr->jmpbuf, 1);
+#endif
+ }
+};
+
+#endif
+
+#endif
diff --git a/smelt/sdl/CxImage/ximapsd.cpp b/smelt/sdl/CxImage/ximapsd.cpp new file mode 100644 index 0000000..2d8417b --- /dev/null +++ b/smelt/sdl/CxImage/ximapsd.cpp @@ -0,0 +1,1307 @@ +/*
+ * File: ximapsd.cpp
+ * Purpose: Platform Independent PSD Image Class Loader
+ * Dec/2010 Davide Pizzolato - www.xdp.it
+ * CxImage version 7.0.0 31/Dec/2010
+ *
+ * libpsd (c) 2004-2007 Graphest Software
+ *
+ * Based on MyPSD class by Iosif Hamlatzis
+ * Details: http://www.codeproject.com/KB/graphics/MyPSD.aspx
+ * Cleaned up a bit and ported to CxImage by Vitaly Ovchinnikov
+ * Send feedback to vitaly(dot)ovchinnikov(at)gmail.com
+ */
+
+#include "ximapsd.h"
+
+#if CXIMAGE_SUPPORT_PSD
+
+enum {
+ PSD_FILE_HEADER,
+ PSD_COLOR_MODE_DATA,
+ PSD_IMAGE_RESOURCE,
+ PSD_LAYER_AND_MASK_INFORMATION,
+ PSD_IMAGE_DATA,
+ PSD_DONE
+};
+
+////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_USE_LIBPSD == 0
+// MyPSD.h /////////////////////////////////////////////////////////////////////
+
+#ifndef __MyPSD_H__
+#define __MyPSD_H__
+
+namespace MyPSD
+{
+
+ class CPSD
+ {
+ struct HEADER_INFO
+ {
+ //Table 2-12: HeaderInfo Color spaces
+ // Color-ID Name Description
+ //-------------------------------------------
+ // 0 Bitmap // Probably means black & white
+ // 1 Grayscale The first value in the color data is the gray value, from 0...10000.
+ // 2 Indexed
+ // 3 RGB The first three values in the color data are red, green, and blue.
+ // They are full unsigned 16–bit values as in Apple’s RGBColor data
+ // structure. Pure red=65535,0,0.
+ // 4 CMYK The four values in the color data are cyan, magenta, yellow, and
+ // black. They are full unsigned 16–bit values. 0=100% ink. Pure
+ // cyan=0,65535,65535,65535.
+ // 7 Multichannel // Have no idea
+ // 8 Duotone
+ // 9 Lab The first three values in the color data are lightness, a chrominance,
+ // and b chrominance.
+ // Lightness is a 16–bit value from 0...100. The chromanance components
+ // are each 16–bit values from –128...127. Gray values
+ // are represented by chrominance components of 0. Pure
+ // white=100,0,0.
+ short nChannels;
+ int nHeight;
+ int nWidth;
+ short nBitsPerPixel;
+ short nColourMode;
+ HEADER_INFO();
+ };
+
+ struct COLOUR_MODE_DATA
+ {
+ int nLength;
+ unsigned char* ColourData;
+ COLOUR_MODE_DATA();
+ };
+
+
+ struct IMAGE_RESOURCE
+ {
+ // Table 2–1: Image resource block
+ // Type Name Description
+ //-------------------------------------------
+ // OSType Type Photoshop always uses its signature, 8BIM
+ // int16 ID Unique identifier
+ // PString Name A pascal string, padded to make size even (a null name consists of two bytes of 0)
+ // Pascal style string where the first byte gives the length of the
+ // string and the content bytes follow.
+ // int32 Size Actual size of resource data. This does not include the
+ // Type, ID, Name, or Size fields.
+ // Variable Data Resource data, padded to make size even
+ int nLength;
+ char OSType[4];
+ short nID;
+ unsigned char* Name;
+ int nSize;
+ IMAGE_RESOURCE();
+ void Reset();
+ };
+
+ struct RESOLUTION_INFO
+ {
+ // Table A-6: ResolutionInfo structure
+ // Type Name Description
+ //-------------------------------------------
+ // Fixed hRes Horizontal resolution in pixels per inch.
+ // int hResUnit 1=display horizontal resolution in pixels per inch;
+ // 2=display horizontal resolution in pixels per cm.
+ // short widthUnit Display width as 1=inches; 2=cm; 3=points; 4=picas; 5=columns.
+ // Fixed vRes Vertical resolution in pixels per inch.
+ // int vResUnit 1=display vertical resolution in pixels per inch;
+ // 2=display vertical resolution in pixels per cm.
+ // short heightUnit Display height as 1=inches; 2=cm; 3=points; 4=picas; 5=columns.
+ short hRes;
+ int hResUnit;
+ short widthUnit;
+
+ short vRes;
+ int vResUnit;
+ short heightUnit;
+ RESOLUTION_INFO();
+ };
+
+ struct RESOLUTION_INFO_v2 // Obsolete - Photoshop 2.0
+ {
+ short nChannels;
+ short nRows;
+ short nColumns;
+ short nDepth;
+ short nMode;
+ RESOLUTION_INFO_v2();
+ };
+
+ struct DISPLAY_INFO
+ {
+ // This structure contains display information about each channel.
+ //Table A-7: DisplayInfo Color spaces
+ // Color-ID Name Description
+ //-------------------------------------------
+ // 0 RGB The first three values in the color data are red, green, and blue.
+ // They are full unsigned 16–bit values as in Apple’s RGBColor data
+ // structure. Pure red=65535,0,0.
+ // 1 HSB The first three values in the color data are hue, saturation, and
+ // brightness. They are full unsigned 16–bit values as in Apple’s
+ // HSVColor data structure. Pure red=0,65535, 65535.
+ // 2 CMYK The four values in the color data are cyan, magenta, yellow, and
+ // black. They are full unsigned 16–bit values. 0=100% ink. Pure
+ // cyan=0,65535,65535,65535.
+ // 7 Lab The first three values in the color data are lightness, a chrominance,
+ // and b chrominance.
+ // Lightness is a 16–bit value from 0...10000. The chromanance components
+ // are each 16–bit values from –12800...12700. Gray values
+ // are represented by chrominance components of 0. Pure
+ // white=10000,0,0.
+ // 8 grayscale The first value in the color data is the gray value, from 0...10000.
+ short ColourSpace;
+ short Colour[4];
+ short Opacity; // 0..100
+ bool kind; // selected = 0, protected = 1
+ unsigned char padding; // should be zero
+ DISPLAY_INFO();
+ };
+ struct THUMBNAIL
+ {
+ // Adobe Photoshop 5.0 and later stores thumbnail information for preview
+ // display in an image resource block. These resource blocks consist of an
+ // 28 byte header, followed by a JFIF thumbnail in RGB (red, green, blue)
+ // for both Macintosh and Windows. Adobe Photoshop 4.0 stored the
+ // thumbnail information in the same format except the data section is
+ // (blue, green, red). The Adobe Photoshop 4.0 format is at resource ID
+ // and the Adobe Photoshop 5.0 format is at resource ID 1036.
+ // Table 2–5: Thumnail resource header
+ // Type Name Description
+ //-------------------------------------------
+ // 4 bytes format = 1 (kJpegRGB). Also supports kRawRGB (0).
+ // 4 bytes width Width of thumbnail in pixels.
+ // 4 bytes height Height of thumbnail in pixels.
+ // 4 bytes widthbytes Padded row bytes as (width * bitspixel + 31) / 32 * 4.
+ // 4 bytes size Total size as widthbytes * height * planes
+ // 4 bytes compressedsize Size after compression. Used for consistentcy check.
+ // 2 bytes bitspixel = 24. Bits per pixel.
+ // 2 bytes planes = 1. Number of planes.
+ // Variable Data JFIF data in RGB format.
+ // Note: For resource ID 1033 the data is in BGR format.
+ int nFormat;
+ int nWidth;
+ int nHeight;
+ int nWidthBytes;
+ int nSize;
+ int nCompressedSize;
+ short nBitPerPixel;
+ short nPlanes;
+ unsigned char* Data;
+ THUMBNAIL();
+ };
+
+
+ CxImage &m_image;
+
+ HEADER_INFO header_info;
+
+ COLOUR_MODE_DATA colour_mode_data;
+ short mnColourCount;
+ short mnTransparentIndex;
+
+ IMAGE_RESOURCE image_resource;
+
+ int mnGlobalAngle;
+
+ RESOLUTION_INFO resolution_info;
+ bool mbResolutionInfoFilled;
+
+ RESOLUTION_INFO_v2 resolution_info_v2;
+ bool mbResolutionInfoFilled_v2;
+
+ DISPLAY_INFO display_info;
+ bool mbDisplayInfoFilled;
+
+ THUMBNAIL thumbnail;
+ bool mbThumbNailFilled;
+
+ bool mbCopyright;
+
+ int Calculate(unsigned char* c, int nDigits);
+ void XYZToRGB(const double X, const double Y, const double Z, int &R, int &G, int &B);
+ void LabToRGB(const int L, const int a, const int b, int &R, int &G, int &B );
+ void CMYKToRGB(const double C, const double M, const double Y, const double K, int &R, int &G, int &B);
+
+ bool ReadHeader(CxFile &f, HEADER_INFO& header_info);
+ bool ReadColourModeData(CxFile &f, COLOUR_MODE_DATA& colour_mode_data);
+ bool ReadImageResource(CxFile &f, IMAGE_RESOURCE& image_resource);
+ bool ReadLayerAndMaskInfoSection(CxFile &f); // Actually ignore it
+ int ReadImageData(CxFile &f);
+
+ int DecodeRawData(CxFile &pFile);
+ int DecodeRLEData(CxFile &pFile);
+
+ void ProccessBuffer(unsigned char* pData = 0);
+
+ public:
+ CPSD(CxImage &image);
+ ~CPSD();
+
+ int Load(LPCTSTR szPathName);
+ int Load(CxFile &file);
+
+ bool ThumbNailIncluded() const { return mbThumbNailFilled; }
+ void DPI(int &x, int &y) const { x = resolution_info.hRes; y = resolution_info.vRes; }
+ void Dimensions(int &cx, int &cy) const { cx = header_info.nWidth; cy = header_info.nHeight; }
+ int BitsPerPixel() const { return header_info.nBitsPerPixel; }
+ int GlobalAngle() const { return mnGlobalAngle; }
+ bool IsCopyright() const { return mbCopyright; }
+ HBITMAP Detach();
+ };
+}
+
+#endif // __MyPSD_H__
+
+// MyPSD.cpp ///////////////////////////////////////////////////////////////////
+
+
+inline int dti(double value) { return (int)floor(value+.5f); }
+
+#define assert(a)
+
+#define mypsd_fread(a, b, c, d) d.Read(a, b, c)
+#define mypsd_fseek(a, b, c) a.Seek(b, c)
+#define mypsd_feof(a) a.Eof()
+
+namespace MyPSD
+{
+ CPSD::CPSD(CxImage &image) : m_image(image)
+ {
+ mbThumbNailFilled = false;
+ mbDisplayInfoFilled = false;
+ mbResolutionInfoFilled = false;
+ mbResolutionInfoFilled_v2 = false;
+ mnGlobalAngle = 30;
+ mbCopyright = false;
+ mnColourCount = -1;
+ mnTransparentIndex = -1;
+ }
+ CPSD::~CPSD()
+ {
+ // free memory
+ if ( 0 < colour_mode_data.nLength )
+ delete[] colour_mode_data.ColourData;
+ colour_mode_data.ColourData = 0;
+
+ if ( image_resource.Name )
+ delete[] image_resource.Name;
+ image_resource.Name = 0;
+ }
+
+ int CPSD::Calculate(unsigned char* c, int nDigits)
+ {
+ int nValue = 0;
+
+ for(int n = 0; n < nDigits; ++n)
+ nValue = ( nValue << 8 ) | *(c+n);
+
+ return nValue;
+ };
+
+ void CPSD::XYZToRGB(const double X, const double Y, const double Z, int &R, int &G, int &B)
+ {
+ // Standards used Observer = 2, Illuminant = D65
+ // ref_X = 95.047, ref_Y = 100.000, ref_Z = 108.883
+ const double ref_X = 95.047;
+ const double ref_Y = 100.000;
+ const double ref_Z = 108.883;
+
+ double var_X = X / 100.0;
+ double var_Y = Y / 100.0;
+ double var_Z = Z / 100.0;
+
+ double var_R = var_X * 3.2406 + var_Y * (-1.5372) + var_Z * (-0.4986);
+ double var_G = var_X * (-0.9689) + var_Y * 1.8758 + var_Z * 0.0415;
+ double var_B = var_X * 0.0557 + var_Y * (-0.2040) + var_Z * 1.0570;
+
+ if ( var_R > 0.0031308 )
+ var_R = 1.055 * ( pow(var_R, 1/2.4) ) - 0.055;
+ else
+ var_R = 12.92 * var_R;
+
+ if ( var_G > 0.0031308 )
+ var_G = 1.055 * ( pow(var_G, 1/2.4) ) - 0.055;
+ else
+ var_G = 12.92 * var_G;
+
+ if ( var_B > 0.0031308 )
+ var_B = 1.055 * ( pow(var_B, 1/2.4) )- 0.055;
+ else
+ var_B = 12.92 * var_B;
+
+ R = (int)(var_R * 256.0);
+ G = (int)(var_G * 256.0);
+ B = (int)(var_B * 256.0);
+ };
+
+ void CPSD::LabToRGB(const int L, const int a, const int b, int &R, int &G, int &B )
+ {
+ // For the conversion we first convert values to XYZ and then to RGB
+ // Standards used Observer = 2, Illuminant = D65
+ // ref_X = 95.047, ref_Y = 100.000, ref_Z = 108.883
+ const double ref_X = 95.047;
+ const double ref_Y = 100.000;
+ const double ref_Z = 108.883;
+
+ double var_Y = ( (double)L + 16.0 ) / 116.0;
+ double var_X = (double)a / 500.0 + var_Y;
+ double var_Z = var_Y - (double)b / 200.0;
+
+ if ( pow(var_Y, 3) > 0.008856 )
+ var_Y = pow(var_Y, 3);
+ else
+ var_Y = ( var_Y - 16 / 116 ) / 7.787;
+
+ if ( pow(var_X, 3) > 0.008856 )
+ var_X = pow(var_X, 3);
+ else
+ var_X = ( var_X - 16 / 116 ) / 7.787;
+
+ if ( pow(var_Z, 3) > 0.008856 )
+ var_Z = pow(var_Z, 3);
+ else
+ var_Z = ( var_Z - 16 / 116 ) / 7.787;
+
+ double X = ref_X * var_X;
+ double Y = ref_Y * var_Y;
+ double Z = ref_Z * var_Z;
+
+ XYZToRGB(X, Y, Z, R, G, B);
+ };
+
+ void CPSD::CMYKToRGB(const double C, const double M, const double Y, const double K, int &R, int &G, int &B )
+ {
+ R = dti( ( 1.0f - ( C *( 1.0f - K ) + K ) ) * 255.0f );
+ G = dti( ( 1.0f - ( M *( 1.0f - K ) + K ) ) * 255.0f );
+ B = dti( ( 1.0f - ( Y *( 1.0f - K ) + K ) ) * 255.0f );
+ };
+
+ bool CPSD::ReadLayerAndMaskInfoSection(CxFile &pFile) // Actually ignore it
+ {
+ bool bSuccess = false;
+
+ unsigned char DataLength[4];
+ int nBytesRead = 0;
+ int nItemsRead = (int)(int)mypsd_fread(&DataLength, sizeof(DataLength), 1, pFile);
+
+ int nTotalBytes = Calculate( DataLength, sizeof(DataLength) );
+
+ unsigned char data[1];
+ while( !mypsd_feof( pFile ) && ( nBytesRead < nTotalBytes ) )
+ {
+ data[0] = '\0';
+ nItemsRead = (int)(int)mypsd_fread(&data, sizeof(data), 1, pFile);
+ nBytesRead += nItemsRead * sizeof(data);
+ }
+
+ assert ( nBytesRead == nTotalBytes );
+ if ( nBytesRead == nTotalBytes )
+ bSuccess = true;
+
+ return bSuccess;
+ }
+ bool CPSD::ReadImageResource(CxFile &pFile, IMAGE_RESOURCE& image_resource)
+ {
+ bool bSuccess = false;
+
+ unsigned char Length[4];
+ int nItemsRead = (int)(int)mypsd_fread(&Length, sizeof(Length), 1, pFile);
+
+ image_resource.nLength = Calculate( Length, sizeof(image_resource.nLength) );
+
+ int nBytesRead = 0;
+ int nTotalBytes = image_resource.nLength;
+
+ while( !mypsd_feof( pFile ) && ( nBytesRead < nTotalBytes ) )
+ {
+ nItemsRead = 0;
+ image_resource.Reset();
+
+ nItemsRead = (int)(int)mypsd_fread(&image_resource.OSType, sizeof(image_resource.OSType), 1, pFile);
+ nBytesRead += nItemsRead * sizeof(image_resource.OSType);
+
+ assert ( 0 == (nBytesRead % 2) );
+ if (::memcmp(image_resource.OSType, "8BIM", 4) == 0)
+ {
+ unsigned char ID[2];
+ nItemsRead = (int)(int)mypsd_fread(&ID, sizeof(ID), 1, pFile);
+ nBytesRead += nItemsRead * sizeof(ID);
+
+ image_resource.nID = (short)Calculate( ID, sizeof(ID) );
+
+ unsigned char SizeOfName;
+ nItemsRead = (int)(int)mypsd_fread(&SizeOfName, sizeof(SizeOfName), 1, pFile);
+ nBytesRead += nItemsRead * sizeof(SizeOfName);
+
+ int nSizeOfName = Calculate( &SizeOfName, sizeof(SizeOfName) );
+ if ( 0 < nSizeOfName )
+ {
+ image_resource.Name = new unsigned char[nSizeOfName];
+ nItemsRead = (int)(int)mypsd_fread(image_resource.Name, nSizeOfName, 1, pFile);
+ nBytesRead += nItemsRead * nSizeOfName;
+ }
+
+ if ( 0 == (nSizeOfName % 2) )
+ {
+ nItemsRead = (int)(int)mypsd_fread(&SizeOfName, sizeof(SizeOfName), 1, pFile);
+ nBytesRead += nItemsRead * sizeof(SizeOfName);
+ }
+
+ unsigned char Size[4];
+ nItemsRead = (int)(int)mypsd_fread(&Size, sizeof(Size), 1, pFile);
+ nBytesRead += nItemsRead * sizeof(Size);
+
+ image_resource.nSize = Calculate( Size, sizeof(image_resource.nSize) );
+
+ if ( 0 != (image_resource.nSize % 2) ) // resource data must be even
+ image_resource.nSize++;
+ if ( 0 < image_resource.nSize )
+ {
+ unsigned char IntValue[4];
+ unsigned char ShortValue[2];
+
+ switch( image_resource.nID )
+ {
+ case 1000:
+ {
+ // Obsolete - Photoshop 2.0
+ mbResolutionInfoFilled_v2 = true;
+
+ nItemsRead = (int)(int)mypsd_fread(&ShortValue, sizeof(ShortValue), 1, pFile);
+ nBytesRead += nItemsRead * sizeof(ShortValue);
+ resolution_info_v2.nChannels = (short)Calculate(ShortValue, sizeof(resolution_info_v2.nChannels) );
+ nItemsRead = (int)(int)mypsd_fread(&ShortValue, sizeof(ShortValue), 1, pFile);
+ nBytesRead += nItemsRead * sizeof(ShortValue);
+ resolution_info_v2.nRows = (short)Calculate(ShortValue, sizeof(resolution_info_v2.nRows) );
+ nItemsRead = (int)(int)mypsd_fread(&ShortValue, sizeof(ShortValue), 1, pFile);
+ nBytesRead += nItemsRead * sizeof(ShortValue);
+ resolution_info_v2.nColumns = (short)Calculate(ShortValue, sizeof(resolution_info_v2.nColumns) );
+ nItemsRead = (int)(int)mypsd_fread(&ShortValue, sizeof(ShortValue), 1, pFile);
+ nBytesRead += nItemsRead * sizeof(ShortValue);
+ resolution_info_v2.nDepth = (short)Calculate(ShortValue, sizeof(resolution_info_v2.nDepth) );
+ nItemsRead = (int)(int)mypsd_fread(&ShortValue, sizeof(ShortValue), 1, pFile);
+ nBytesRead += nItemsRead * sizeof(ShortValue);
+ resolution_info_v2.nMode = (short)Calculate(ShortValue, sizeof(resolution_info_v2.nMode) );
+ }
+ break;
+ case 1005:
+ {
+ mbResolutionInfoFilled = true;
+
+ nItemsRead = (int)(int)mypsd_fread(&ShortValue, sizeof(ShortValue), 1, pFile);
+ nBytesRead += nItemsRead * sizeof(ShortValue);
+ resolution_info.hRes = (short)Calculate(ShortValue, sizeof(resolution_info.hRes) );
+ nItemsRead = (int)(int)mypsd_fread(&IntValue, sizeof(IntValue), 1, pFile);
+ nBytesRead += nItemsRead * sizeof(IntValue);
+ resolution_info.hResUnit = Calculate(IntValue, sizeof(resolution_info.hResUnit) );
+ nItemsRead = (int)(int)mypsd_fread(&ShortValue, sizeof(ShortValue), 1, pFile);
+ nBytesRead += nItemsRead * sizeof(ShortValue);
+ resolution_info.widthUnit = (short)Calculate(ShortValue, sizeof(resolution_info.widthUnit) );
+
+ nItemsRead = (int)(int)mypsd_fread(&ShortValue, sizeof(ShortValue), 1, pFile);
+ nBytesRead += nItemsRead * sizeof(ShortValue);
+ resolution_info.vRes = (short)Calculate(ShortValue, sizeof(resolution_info.vRes) );
+ nItemsRead = (int)(int)mypsd_fread(&IntValue, sizeof(IntValue), 1, pFile);
+ nBytesRead += nItemsRead * sizeof(IntValue);
+ resolution_info.vResUnit = Calculate(IntValue, sizeof(resolution_info.vResUnit) );
+ nItemsRead = (int)mypsd_fread(&ShortValue, sizeof(ShortValue), 1, pFile);
+ nBytesRead += nItemsRead * sizeof(ShortValue);
+ resolution_info.heightUnit = (short)Calculate(ShortValue, sizeof(resolution_info.heightUnit) );
+ }
+ break;
+ case 1007:
+ {
+ mbDisplayInfoFilled = true;
+
+ nItemsRead = (int)mypsd_fread(&ShortValue, sizeof(ShortValue), 1, pFile);
+ nBytesRead += nItemsRead * sizeof(ShortValue);
+ display_info.ColourSpace = (short)Calculate(ShortValue, sizeof(display_info.ColourSpace) );
+
+ for ( unsigned int n = 0; n < 4; ++n )
+ {
+ nItemsRead = (int)mypsd_fread(&ShortValue, sizeof(ShortValue), 1, pFile);
+ nBytesRead += nItemsRead * sizeof(ShortValue);
+ display_info.Colour[n] = (short)Calculate(ShortValue, sizeof(display_info.Colour[n]) );
+ }
+
+ nItemsRead = (int)mypsd_fread(&ShortValue, sizeof(ShortValue), 1, pFile);
+ nBytesRead += nItemsRead * sizeof(ShortValue);
+ display_info.Opacity = (short)Calculate(ShortValue, sizeof(display_info.Opacity) );
+ assert ( 0 <= display_info.Opacity );
+ assert ( 100 >= display_info.Opacity );
+
+ unsigned char c[1];
+ nItemsRead = (int)mypsd_fread(&c, sizeof(c), 1, pFile);
+ nBytesRead += nItemsRead * sizeof(c);
+ ( 1 == Calculate(c, sizeof(c) ) ) ? display_info.kind = true : display_info.kind = false;
+
+ nItemsRead = (int)mypsd_fread(&c, sizeof(c), 1, pFile);
+ nBytesRead += nItemsRead * sizeof(c);
+ display_info.padding = (unsigned int)Calculate(c, sizeof(c) );
+ assert ( 0 == display_info.padding );
+ }
+ break;
+ case 1034:
+ {
+ nItemsRead = (int)mypsd_fread(&ShortValue, sizeof(ShortValue), 1, pFile);
+ nBytesRead += nItemsRead * sizeof(ShortValue);
+ ( 1 == Calculate(ShortValue, sizeof(ShortValue) ) ) ? mbCopyright = true : mbCopyright = false;
+ }
+ break;
+ case 1033:
+ case 1036:
+ {
+ mbThumbNailFilled = true;
+
+ nItemsRead = (int)mypsd_fread(&IntValue, sizeof(IntValue), 1, pFile);
+ nBytesRead += nItemsRead * sizeof(IntValue);
+ thumbnail.nFormat = Calculate(IntValue, sizeof(thumbnail.nFormat) );
+
+ nItemsRead = (int)mypsd_fread(&IntValue, sizeof(IntValue), 1, pFile);
+ nBytesRead += nItemsRead * sizeof(IntValue);
+ thumbnail.nWidth = Calculate(IntValue, sizeof(thumbnail.nWidth) );
+
+ nItemsRead = (int)mypsd_fread(&IntValue, sizeof(IntValue), 1, pFile);
+ nBytesRead += nItemsRead * sizeof(IntValue);
+ thumbnail.nHeight = Calculate(IntValue, sizeof(thumbnail.nHeight) );
+
+ nItemsRead = (int)mypsd_fread(&IntValue, sizeof(IntValue), 1, pFile);
+ nBytesRead += nItemsRead * sizeof(IntValue);
+ thumbnail.nWidthBytes = Calculate(IntValue, sizeof(thumbnail.nWidthBytes) );
+
+ nItemsRead = (int)mypsd_fread(&IntValue, sizeof(IntValue), 1, pFile);
+ nBytesRead += nItemsRead * sizeof(IntValue);
+ thumbnail.nSize = Calculate(IntValue, sizeof(thumbnail.nSize) );
+
+ nItemsRead = (int)mypsd_fread(&IntValue, sizeof(IntValue), 1, pFile);
+ nBytesRead += nItemsRead * sizeof(IntValue);
+ thumbnail.nCompressedSize = Calculate(IntValue, sizeof(thumbnail.nCompressedSize) );
+
+ nItemsRead = (int)mypsd_fread(&ShortValue, sizeof(ShortValue), 1, pFile);
+ nBytesRead += nItemsRead * sizeof(ShortValue);
+ thumbnail.nBitPerPixel = (short)Calculate(ShortValue, sizeof(thumbnail.nBitPerPixel) );
+
+ nItemsRead = (int)mypsd_fread(&ShortValue, sizeof(ShortValue), 1, pFile);
+ nBytesRead += nItemsRead * sizeof(ShortValue);
+ thumbnail.nPlanes = (short)Calculate(ShortValue, sizeof(thumbnail.nPlanes) );
+
+ int nTotalData = image_resource.nSize - 28; // header
+ unsigned char* buffer = new unsigned char[nTotalData];
+ unsigned char c[1];
+ if ( 1033 == image_resource.nID )
+ {
+ // In BGR format
+ for (int n = 0; n < nTotalData; n = n +3 )
+ {
+ nItemsRead = (int)mypsd_fread(&c, sizeof(unsigned char), 1, pFile);
+ nBytesRead += nItemsRead * sizeof(unsigned char);
+ buffer[n+2] = (unsigned char)Calculate(c, sizeof(unsigned char) );
+ nItemsRead = (int)mypsd_fread(&c, sizeof(unsigned char), 1, pFile);
+ nBytesRead += nItemsRead * sizeof(unsigned char);
+ buffer[n+1] = (unsigned char)Calculate(c, sizeof(BYTE) );
+ nItemsRead = (int)mypsd_fread(&c, sizeof(unsigned char), 1, pFile);
+ nBytesRead += nItemsRead * sizeof(unsigned char);
+ buffer[n] = (unsigned char)Calculate(c, sizeof(unsigned char) );
+ }
+ }
+ else if ( 1036 == image_resource.nID )
+ {
+ // In RGB format
+ for (int n = 0; n < nTotalData; ++n )
+ {
+ nItemsRead = (int)mypsd_fread(&c, sizeof(BYTE), 1, pFile);
+ nBytesRead += nItemsRead * sizeof(BYTE);
+ buffer[n] = (BYTE)Calculate(c, sizeof(BYTE) );
+ }
+ }
+
+ delete[] buffer;
+ buffer = 0;
+ }
+ break;
+ case 1037:
+ {
+ nItemsRead = (int)mypsd_fread(&IntValue, sizeof(IntValue), 1, pFile);
+ nBytesRead += nItemsRead * sizeof(IntValue);
+ mnGlobalAngle = Calculate(IntValue, sizeof(mnGlobalAngle) );
+ }
+ break;
+ case 1046:
+ {
+ nItemsRead = (int)mypsd_fread(&ShortValue, sizeof(ShortValue), 1, pFile);
+ nBytesRead += nItemsRead * sizeof(ShortValue);
+ mnColourCount = (short)Calculate(ShortValue, sizeof(ShortValue) );
+ }
+ break;
+ case 1047:
+ {
+ nItemsRead = (int)mypsd_fread(&ShortValue, sizeof(ShortValue), 1, pFile);
+ nBytesRead += nItemsRead * sizeof(ShortValue);
+ mnTransparentIndex = (short)Calculate(ShortValue, sizeof(ShortValue) );
+ }
+ break;
+
+ default:
+ pFile.Seek(image_resource.nSize, SEEK_CUR);
+ nBytesRead += image_resource.nSize;
+ break;
+ }
+ }
+ }
+ }
+
+ assert ( nBytesRead == nTotalBytes );
+ if ( nBytesRead == nTotalBytes )
+ bSuccess = true;
+
+ return bSuccess;
+ }
+ bool CPSD::ReadColourModeData(CxFile &pFile, COLOUR_MODE_DATA& colour_mode_data)
+ {
+ // Only indexed colour and duotone have colour mode data,
+ // for all other modes this section is 4 bytes length, the length field is set to zero
+
+ // For indexed color images, the length will be equal to 768, and the color
+ // will contain the color table for the image, in non–interleaved order.
+
+ // For duotone images, the color data will contain the duotone specification,
+ // the format of which is not documented. Other applications that read
+ // Photoshop files can treat a duotone image as a grayscale image, and just
+ // preserve the contents of the duotone information when reading and writing
+ // the file.
+
+ // free memory
+ if ( 0 < colour_mode_data.nLength )
+ delete[] colour_mode_data.ColourData;
+ colour_mode_data.ColourData = 0;
+
+ unsigned char Length[4];
+ int nItemsRead = (int)mypsd_fread(&Length, sizeof(Length), 1, pFile);
+
+ colour_mode_data.nLength = Calculate( Length, sizeof(colour_mode_data.nLength) );
+ if ( 0 < colour_mode_data.nLength )
+ {
+ colour_mode_data.ColourData = new unsigned char[colour_mode_data.nLength];
+ nItemsRead = 0;
+ memset(colour_mode_data.ColourData, 254, colour_mode_data.nLength);
+
+ nItemsRead += (int)mypsd_fread( colour_mode_data.ColourData, colour_mode_data.nLength, 1, pFile);
+
+ }
+
+ return true;
+ }
+
+ bool CPSD::ReadHeader(CxFile &pFile, HEADER_INFO& header_info)
+ {
+ bool bSuccess = false;
+
+ struct HEADER
+ {
+ char Signature[4]; // always equal 8BPS, do not read file if not
+ unsigned char Version[2]; // always equal 1, do not read file if not
+ char Reserved[6]; // must be zero
+ unsigned char Channels[2]; // numer of channels including any alpha channels, supported range 1 to 24
+ unsigned char Rows[4]; // height in PIXELS, supported range 1 to 30000
+ unsigned char Columns[4]; // width in PIXELS, supported range 1 to 30000
+ unsigned char Depth[2]; // number of bpp
+ unsigned char Mode[2]; // colour mode of the file,
+ // Btmap=0, Grayscale=1, Indexed=2, RGB=3,
+ // CMYK=4, Multichannel=7, Duotone=8, Lab=9
+ };
+
+ HEADER header;
+ int nItemsRead = (int)mypsd_fread(&header, sizeof(HEADER), 1, pFile);
+ if ( nItemsRead )
+ {
+ if ( 0 == ::memcmp(header.Signature, "8BPS", 4))
+ {
+ int nVersion = Calculate( header.Version, sizeof(header.Version) );
+
+ if ( 1 == nVersion )
+ {
+ unsigned int n = 0;
+ bool bOK = true;
+ while ( (n < 6) && bOK )
+ {
+ if ( '\0' != header.Reserved[n] )
+ bOK = false;
+ n++;
+ }
+ bSuccess = bOK;
+
+ if ( bSuccess )
+ {
+ header_info.nChannels = (short)Calculate( header.Channels, sizeof(header.Channels) );
+ header_info.nHeight = Calculate( header.Rows, sizeof(header.Rows) );
+ header_info.nWidth = Calculate( header.Columns, sizeof(header.Columns) );
+ header_info.nBitsPerPixel = (short)Calculate( header.Depth, sizeof(header.Depth) );
+ header_info.nColourMode = (short)Calculate( header.Mode, sizeof(header.Mode) );
+ }
+ }
+ }
+ }
+
+ return bSuccess;
+ }
+
+
+ void CPSD::ProccessBuffer(unsigned char* pData )
+ {
+ if (!pData) return;
+
+ switch ( header_info.nColourMode )
+ {
+ case 1: // Grayscale
+ case 8: // Duotone
+ {
+ bool bAlpha = header_info.nChannels > 1;
+
+ int nPixels = header_info.nWidth * header_info.nHeight;
+ byte *pRGBA = new byte[nPixels * (bAlpha ? 4 : 3)];
+ byte *pSrc = pData, *pDst = pRGBA;
+ for (int i = 0; i < nPixels; i++, pSrc += header_info.nChannels, pDst += bAlpha ? 4 : 3)
+ {
+ pDst[0] = pDst[1] = pDst[2] = pSrc[0];
+ if (bAlpha) pDst[3] = pSrc[1];
+ }
+
+ m_image.CreateFromArray(pRGBA, header_info.nWidth, header_info.nHeight, bAlpha ? 32 : 24, header_info.nWidth * (bAlpha ? 4 : 3), true);
+
+ delete [] pRGBA;
+ }
+ break;
+ case 2: // Indexed
+ {
+ if (!colour_mode_data.ColourData) break;
+ if (colour_mode_data.nLength != 768) break;
+ if (mnColourCount == 0) break;
+
+ int nPixels = header_info.nWidth * header_info.nHeight;
+ byte *pRGB = new byte[nPixels * 3];
+ ::memset(pRGB, 0, nPixels * 3);
+ byte *pSrc = pData, *pDst = pRGB;
+ for (int i = 0; i < nPixels; i++, pSrc += header_info.nChannels, pDst += 3)
+ {
+ int nIndex = *pSrc;
+ pDst[2] = colour_mode_data.ColourData[nIndex + 0 * 256];
+ pDst[1] = colour_mode_data.ColourData[nIndex + 1 * 256];
+ pDst[0] = colour_mode_data.ColourData[nIndex + 2 * 256];
+ }
+
+ m_image.CreateFromArray(pRGB, header_info.nWidth, header_info.nHeight, 24, header_info.nWidth * 3, true);
+ delete [] pRGB;
+ }
+ break;
+ case 3: // RGB
+ {
+ m_image.CreateFromArray(pData, header_info.nWidth, header_info.nHeight, header_info.nChannels == 3 ? 24 : 32, header_info.nWidth * header_info.nChannels, true);
+ m_image.SwapRGB2BGR();
+ }
+ break;
+ case 4: // CMYK
+ {
+ bool bAlpha = header_info.nChannels > 4;
+
+ int nPixels = header_info.nWidth * header_info.nHeight;
+ byte *pRGBA = new byte[nPixels * (bAlpha ? 4 : 3)];
+ byte *pSrc = pData, *pDst = pRGBA;
+ double C, M, Y, K;
+ int nRed, nGreen, nBlue;
+ for (int i = 0; i < nPixels; i++, pSrc += header_info.nChannels, pDst += bAlpha ? 4 : 3)
+ {
+ C = (1.0 - (double)pSrc[0] / 256);
+ M = (1.0 - (double)pSrc[1] / 256);
+ Y = (1.0 - (double)pSrc[2] / 256);
+ K = (1.0 - (double)pSrc[3] / 256);
+
+ CMYKToRGB(C, M, Y, K, nRed, nGreen, nBlue);
+
+ if (0 > nRed) nRed = 0; else if (255 < nRed) nRed = 255;
+ if (0 > nGreen) nGreen = 0; else if (255 < nGreen) nGreen = 255;
+ if (0 > nBlue) nBlue = 0; else if (255 < nBlue) nBlue = 255;
+
+ pDst[0] = nBlue; pDst[1] = nGreen; pDst[2] = nRed;
+ if (bAlpha) pDst[3] = pSrc[4];
+ }
+
+ m_image.CreateFromArray(pRGBA, header_info.nWidth, header_info.nHeight, bAlpha ? 32 : 24, header_info.nWidth * (bAlpha ? 4 : 3), true);
+
+ delete [] pRGBA;
+ }
+ break;
+ case 7: // Multichannel
+ {
+ if (header_info.nChannels == 0 || header_info.nChannels > 4) break; // ???
+
+ int nPixels = header_info.nWidth * header_info.nHeight;
+ byte *pRGB = new byte[nPixels * 3];
+ byte *pSrc = pData, *pDst = pRGB;
+ double C, M, Y, K;
+ int nRed, nGreen, nBlue;
+ for (int i = 0; i < nPixels; i++, pSrc += header_info.nChannels, pDst += 3)
+ {
+ C = M = Y = K = 0;
+ C = (1.0 - (double)pSrc[0] / 256);
+ if (header_info.nChannels > 1) M = (1.0 - (double)pSrc[1] / 256);
+ if (header_info.nChannels > 2) Y = (1.0 - (double)pSrc[2] / 256);
+ if (header_info.nChannels > 3) K = (1.0 - (double)pSrc[3] / 256);
+
+ CMYKToRGB(C, M, Y, K, nRed, nGreen, nBlue);
+
+ if (0 > nRed) nRed = 0; else if (255 < nRed) nRed = 255;
+ if (0 > nGreen) nGreen = 0; else if (255 < nGreen) nGreen = 255;
+ if (0 > nBlue) nBlue = 0; else if (255 < nBlue) nBlue = 255;
+
+ pDst[0] = nBlue; pDst[1] = nGreen; pDst[2] = nRed;
+ }
+
+ m_image.CreateFromArray(pRGB, header_info.nWidth, header_info.nHeight, 24, header_info.nWidth * 3, true);
+
+ delete [] pRGB;
+ }
+ break;
+ case 9: // Lab
+ {
+ bool bAlpha = header_info.nChannels > 3;
+
+ int nPixels = header_info.nWidth * header_info.nHeight;
+ byte *pRGBA = new byte[nPixels * (bAlpha ? 4 : 3)];
+ byte *pSrc = pData, *pDst = pRGBA;
+
+ double L_coef = 256.f / 100.f, a_coef = 256.f / 256.f, b_coef = 256.f / 256.f;
+ int L, a, b;
+ int nRed, nGreen, nBlue;
+ for (int i = 0; i < nPixels; i++, pSrc += header_info.nChannels, pDst += bAlpha ? 4 : 3)
+ {
+ L = (int)((float)pSrc[0] / L_coef);
+ a = (int)((float)pSrc[1] / a_coef - 128.0);
+ b = (int)((float)pSrc[2] / b_coef - 128.0);
+
+ LabToRGB(L, a, b, nRed, nGreen, nBlue );
+
+ if (0 > nRed) nRed = 0; else if (255 < nRed) nRed = 255;
+ if (0 > nGreen) nGreen = 0; else if (255 < nGreen) nGreen = 255;
+ if (0 > nBlue) nBlue = 0; else if (255 < nBlue) nBlue = 255;
+
+ pDst[0] = nBlue; pDst[1] = nGreen; pDst[2] = nRed;
+ if (bAlpha) pDst[3] = pSrc[3];
+ }
+
+ m_image.CreateFromArray(pRGBA, header_info.nWidth, header_info.nHeight, bAlpha ? 32 : 24, header_info.nWidth * (bAlpha ? 4 : 3), true);
+
+ delete [] pRGBA;
+ }
+ break;
+ }
+ }
+
+ int CPSD::Load(LPCTSTR szPathName)
+ {
+ CxIOFile f;
+ if (!f.Open(szPathName, _T("rb"))) return -1;
+ return Load(f);
+ }
+
+ int CPSD::Load(CxFile &f)
+ {
+ if (!ReadHeader(f, header_info)) return -2; // Error in header
+ if (!ReadColourModeData(f, colour_mode_data)) return -3; // Error in ColourMode Data
+ if (!ReadImageResource(f, image_resource)) return -4; // Error in Image Resource
+ if (!ReadLayerAndMaskInfoSection(f)) return -5; // Error in Mask Info
+ if (ReadImageData(f) != 0) return -6; // Error in Image Data
+ return 0; // all right
+ }
+
+ int CPSD::DecodeRawData( CxFile &pFile)
+ {
+ if (header_info.nBitsPerPixel != 8 && header_info.nBitsPerPixel != 16) return -7; // can't read this
+
+ int nWidth = header_info.nWidth;
+ int nHeight = header_info.nHeight;
+ int bytesPerPixelPerChannel = header_info.nBitsPerPixel / 8;
+
+ int nPixels = nWidth * nHeight;
+ int nTotalBytes = 0;
+
+ byte* pData = NULL;
+
+ switch ( header_info.nColourMode )
+ {
+ case 1: // Grayscale
+ case 2: // Indexed
+ case 3: // RGB
+ case 4: // CMYK
+ case 8: // Duotone
+ case 9: // Lab
+ {
+ // read RRRRRRRGGGGGGGBBBBBBAAAAAA data
+ int nAllDataSize = nPixels * bytesPerPixelPerChannel * header_info.nChannels;
+ byte *pFileData = new byte[nAllDataSize];
+ ::memset(pFileData, 0, nAllDataSize);
+ if (pFile.Read(pFileData, nAllDataSize, 1) != 1)
+ {
+ delete [] pFileData;
+ return -1; // bad data
+ }
+
+ // and convert them to RGBARGBARGBA data (depends on number of channels)
+ nTotalBytes = nPixels * header_info.nChannels;
+ pData = new byte[nTotalBytes];
+ byte *pSource = pFileData;
+ for (int nChannel = 0; nChannel < header_info.nChannels; nChannel++)
+ {
+ byte *pDest = pData + nChannel;
+ for (int pos = 0; pos < nPixels; pos++, pDest += header_info.nChannels, pSource += bytesPerPixelPerChannel) *pDest = *pSource;
+ }
+ delete [] pFileData;
+ }
+ break;
+ default:
+ return -1; // unsupported format
+ }
+
+ ProccessBuffer(pData);
+ delete [] pData;
+
+ // dpi related things
+ int ppm_x = 3780; // 96 dpi
+ int ppm_y = 3780; // 96 dpi
+ if (mbResolutionInfoFilled)
+ {
+ int nHorResolution = (int)resolution_info.hRes;
+ int nVertResolution = (int)resolution_info.vRes;
+ ppm_x = (nHorResolution * 10000) / 254;
+ ppm_y = (nVertResolution * 10000) / 254;
+ }
+ m_image.SetXDPI(ppm_x);
+ m_image.SetYDPI(ppm_y);
+
+ return 0;
+ }
+
+
+ int CPSD::DecodeRLEData(CxFile & pFile)
+ {
+ if (header_info.nBitsPerPixel != 8) return -7; // can't read this
+
+ int nWidth = header_info.nWidth;
+ int nHeight = header_info.nHeight;
+ int nPixels = nWidth * nHeight;
+
+ // The RLE-compressed data is preceeded by a 2-byte data count for each row in the data
+ // read them and compute size of RLE data
+ int nLengthDataSize = nHeight * header_info.nChannels * 2;
+ byte *pLengthData = new byte[nLengthDataSize];
+ if (pFile.Read(pLengthData, nLengthDataSize, 1) != 1)
+ {
+ delete [] pLengthData;
+ return -1; // error while reading
+ }
+ int nRLEDataSize = 0;
+ for (int i = 0; i < nHeight * header_info.nChannels * 2; i += 2)
+ nRLEDataSize += Calculate(pLengthData + i, 2);
+ delete [] pLengthData;
+
+ // now read RLE data to the buffer for fast access
+ byte *pRLEData = new byte[nRLEDataSize];
+ if (pFile.Read(pRLEData, nRLEDataSize, 1) != 1)
+ {
+ delete [] pRLEData;
+ return -1;
+ }
+
+ // allocate buffer for raw data (RRRRRRR...RRRGGGGG...GGGGGGBBBBB...BBBBBAAAAA....AAAAA) it has the same size as the final buffer
+ // and the perform RLE-decoding
+ int nTotalBytes = nPixels * header_info.nChannels;
+ byte* pRawData = new byte[nTotalBytes];
+ byte *pRLESource = pRLEData, *pRLEDest = pRawData;
+ for (int channel = 0; channel < header_info.nChannels; channel++)
+ {
+ int nCount = 0;
+ while (nCount < nPixels)
+ {
+ int len = *pRLESource++;
+ if ( 128 > len )
+ { // copy next (len + 1) bytes as is
+ len++;
+ nCount += len;
+ ::memcpy(pRLEDest, pRLESource, len);
+ pRLEDest += len; pRLESource += len;
+ }
+ else if ( 128 < len )
+ {
+ // Next -len+1 bytes in the dest are replicated from next source byte.
+ // (Interpret len as a negative 8-bit int.)
+ len ^= 0x0FF;
+ len += 2;
+ nCount += len;
+ ::memset(pRLEDest, *pRLESource++, len);
+ pRLEDest += len;
+ }
+ else if ( 128 == len ) { /* Do nothing */ }
+ }
+ }
+ delete [] pRLEData;
+
+ // transform raw data to the good one (RGBARGBARGBA...RGBA)
+ byte *pRawSource = pRawData;
+ byte *pData = new byte[nTotalBytes];
+ int nPixelCounter = 0;
+ for( int nColour = 0; nColour < header_info.nChannels; ++nColour )
+ {
+ nPixelCounter = nColour;
+ for (int nPos = 0; nPos < nPixels; nPos++, pRawSource++)
+ {
+ pData[nPixelCounter] = *pRawSource;
+ nPixelCounter += header_info.nChannels;
+ }
+ }
+ delete[] pRawData;
+
+ // create image
+ ProccessBuffer(pData);
+ delete [] pData;
+
+ // dpi related things
+ int ppm_x = 3780; // 96 dpi
+ int ppm_y = 3780; // 96 dpi
+ if (mbResolutionInfoFilled)
+ {
+ int nHorResolution = (int)resolution_info.hRes;
+ int nVertResolution = (int)resolution_info.vRes;
+ ppm_x = (nHorResolution * 10000) / 254;
+ ppm_y = (nVertResolution * 10000) / 254;
+ }
+ m_image.SetXDPI(ppm_x);
+ m_image.SetYDPI(ppm_y);
+
+ return 0;
+ }
+
+ int CPSD::ReadImageData(CxFile &pFile)
+ {
+ int nErrorCode = 0; // No Errors
+
+ if ( !mypsd_feof(pFile) )
+ {
+ unsigned char ShortValue[2];
+ int nBytesRead = 0;
+ int nItemsRead = (int)mypsd_fread(&ShortValue, sizeof(ShortValue), 1, pFile);
+ short nCompression = (short)Calculate( ShortValue, sizeof(ShortValue) );
+
+ switch ( nCompression )
+ {
+ case 0: // raw data
+ nErrorCode = DecodeRawData(pFile);
+ break;
+ case 1: // RLE compression
+ nErrorCode = DecodeRLEData(pFile);
+ break;
+ case 2: // ZIP without prediction
+ nErrorCode = -10; // ZIP without prediction, no specification
+ break;
+ case 3: // ZIP with prediction
+ nErrorCode = -11; // ZIP with prediction, no specification
+ break;
+ default:
+ nErrorCode = -12; // Unknown format
+ }
+ }
+ return nErrorCode;
+ }
+
+ //////////////////////////////////////////////////////////////////////////
+ //////////////////////////////////////////////////////////////////////////
+ CPSD::HEADER_INFO::HEADER_INFO()
+ {
+ nChannels = -1;
+ nHeight = -1;
+ nWidth = -1;
+ nBitsPerPixel = -1;
+ nColourMode = -1;
+ }
+
+ CPSD::COLOUR_MODE_DATA::COLOUR_MODE_DATA()
+ {
+ nLength = -1;
+ ColourData = 0;
+ }
+
+ CPSD::IMAGE_RESOURCE::IMAGE_RESOURCE()
+ {
+ Name = 0;
+ Reset();
+ }
+
+ void CPSD::IMAGE_RESOURCE::Reset()
+ {
+ nLength = -1;
+ memset( OSType, '\0', sizeof(OSType) );
+ nID = -1;
+ if ( Name )
+ delete[] Name;
+ Name = 0;
+ nSize = -1;
+ }
+
+ CPSD::RESOLUTION_INFO::RESOLUTION_INFO()
+ {
+ hRes = -1;
+ hResUnit = -1;
+ widthUnit = -1;
+ vRes = -1;
+ vResUnit = -1;
+ heightUnit = -1;
+ }
+
+ CPSD::RESOLUTION_INFO_v2::RESOLUTION_INFO_v2()
+ {
+ nChannels = -1;
+ nRows = -1;
+ nColumns = -1;
+ nDepth = -1;
+ nMode = -1;
+ }
+
+ CPSD::DISPLAY_INFO::DISPLAY_INFO()
+ {
+ ColourSpace = -1;
+ for ( unsigned int n = 0; n < 4; ++n)
+ Colour[n] = 0;
+ Opacity = -1;
+ kind = false;
+ padding = '0';
+ }
+
+ CPSD::THUMBNAIL::THUMBNAIL()
+ {
+ nFormat = -1;
+ nWidth = -1;
+ nHeight = -1;
+ nWidthBytes = -1;
+ nSize = -1;
+ nCompressedSize = -1;
+ nBitPerPixel = -1;
+ nPlanes = -1;
+ Data = 0;
+ }
+} // MyPSD
+
+////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
+#endif //CXIMAGE_USE_LIBPSD
+
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_SUPPORT_DECODE
+////////////////////////////////////////////////////////////////////////////////
+bool CxImagePSD::Decode(CxFile *hFile)
+{
+ if (hFile==NULL)
+ return false;
+
+#if CXIMAGE_USE_LIBPSD
+ psd_context* context = NULL;
+#endif
+
+ cx_try
+ {
+#if CXIMAGE_USE_LIBPSD
+
+ psd_status status;
+
+ context = (psd_context *)malloc(sizeof(psd_context));
+ if(context == NULL){
+ cx_throw("CxImagePSD: psd_status_malloc_failed");
+ }
+ memset(context, 0, sizeof(psd_context));
+
+ // install file manager
+ CxFilePsd src(hFile,context);
+
+ context->state = PSD_FILE_HEADER;
+ context->stream.file_length = hFile->Size();
+ context->load_tag = psd_load_tag_all;
+ status = psd_main_loop(context);
+
+ if(status != psd_status_done){
+ cx_throw("CxImagePSD: psd_main_loop failed");
+ }
+
+ Create(context->width,context->height,24,CXIMAGE_FORMAT_PSD);
+
+ uint8_t* rgba = (uint8_t*)context->merged_image_data;
+ uint8_t* alpha = NULL;
+ if (context->alpha_channel_info)
+ alpha = (uint8_t*)context->alpha_channel_info->channel_data;
+ if (alpha)
+ AlphaCreate();
+
+ int32_t x,y;
+ RGBQUAD c;
+ c.rgbReserved = 0;
+ if (rgba){
+ for(y =context->height-1; y--;){
+ for (x=0; x<context->width; x++){
+ c.rgbBlue = *rgba++;
+ c.rgbGreen = *rgba++;
+ c.rgbRed = *rgba++;
+ rgba++;
+ SetPixelColor(x,y,c);
+#if CXIMAGE_SUPPORT_ALPHA
+ if (alpha) AlphaSet(x,y,*alpha++);
+#endif //CXIMAGE_SUPPORT_ALPHA
+ }
+ }
+ }
+
+ psd_image_free(context);
+ free(context);
+
+#else //CXIMAGE_USE_LIBPSD == 0
+
+ MyPSD::CPSD psd(*this);
+ int nErrorCode = psd.Load(*hFile);
+ if (nErrorCode != 0) cx_throw("error loading PSD file");
+
+#endif //CXIMAGE_USE_LIBPSD
+
+ } cx_catch {
+
+#if CXIMAGE_USE_LIBPSD
+ psd_image_free(context);
+ if (context) free(context);
+#endif //CXIMAGE_USE_LIBPSD
+
+ if (strcmp(message,"")) strncpy(info.szLastError,message,255);
+ if (info.nEscape == -1 && info.dwType == CXIMAGE_FORMAT_PSD) return true;
+ return false;
+ }
+ /* that's it */
+ return true;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+#endif //CXIMAGE_SUPPORT_DECODE
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_SUPPORT_ENCODE
+////////////////////////////////////////////////////////////////////////////////
+bool CxImagePSD::Encode(CxFile * hFile)
+{
+ if (hFile == NULL) return false;
+ strcpy(info.szLastError, "Save PSD not supported");
+ return false;
+}
+////////////////////////////////////////////////////////////////////////////////
+#endif // CXIMAGE_SUPPORT_ENCODE
+////////////////////////////////////////////////////////////////////////////////
+#endif // CXIMAGE_SUPPORT_PSD
+
diff --git a/smelt/sdl/CxImage/ximapsd.h b/smelt/sdl/CxImage/ximapsd.h new file mode 100644 index 0000000..92be8f1 --- /dev/null +++ b/smelt/sdl/CxImage/ximapsd.h @@ -0,0 +1,110 @@ +/*
+ * File: ximapsd.h
+ * Purpose: PSD Image Class Loader and Writer
+ */
+/* ==========================================================
+ * CxImagePSD (c) Dec/2010
+ * For conditions of distribution and use, see copyright notice in ximage.h
+ *
+ * libpsd (c) 2004-2007 Graphest Software
+ *
+ * ==========================================================
+ */
+#if !defined(__ximaPSD_h)
+#define __ximaPSD_h
+
+#include "ximage.h"
+
+#if CXIMAGE_SUPPORT_PSD
+
+#define CXIMAGE_USE_LIBPSD 1
+
+#if CXIMAGE_USE_LIBPSD
+ extern "C" {
+ #include "../libpsd/libpsd.h"
+ }
+#endif
+
+class CxImagePSD: public CxImage
+{
+
+public:
+ CxImagePSD(): CxImage(CXIMAGE_FORMAT_PSD) {}
+
+// bool Load(const char * imageFileName){ return CxImage::Load(imageFileName,CXIMAGE_FORMAT_PSD);}
+// bool Save(const char * imageFileName){ return CxImage::Save(imageFileName,CXIMAGE_FORMAT_PSD);}
+ bool Decode(CxFile * hFile);
+ bool Decode(FILE *hFile) { CxIOFile file(hFile); return Decode(&file); }
+
+//#if CXIMAGE_SUPPORT_EXIF
+// bool GetExifThumbnail(const TCHAR *filename, const TCHAR *outname, int32_t type);
+//#endif //CXIMAGE_SUPPORT_EXIF
+
+#if CXIMAGE_SUPPORT_ENCODE
+ bool Encode(CxFile * hFile);
+ bool Encode(FILE *hFile) { CxIOFile file(hFile); return Encode(&file); }
+#endif // CXIMAGE_SUPPORT_ENCODE
+
+#if CXIMAGE_USE_LIBPSD
+protected:
+ class CxFilePsd
+ {
+ public:
+ CxFilePsd(CxFile* pFile,psd_context *context)
+ {
+ context->file = pFile;
+
+ psd_CxFile_ops.size_ = psd_file_size;
+ psd_CxFile_ops.seek_ = psd_file_seek;
+ psd_CxFile_ops.read_ = psd_file_read;
+// psd_CxFile_ops.write_ = psd_file_write;
+// psd_CxFile_ops.close_ = psd_file_close;
+// psd_CxFile_ops.gets_ = psd_file_gets;
+// psd_CxFile_ops.eof_ = psd_file_eof;
+// psd_CxFile_ops.tell_ = psd_file_tell;
+// psd_CxFile_ops.getc_ = psd_file_getc;
+// psd_CxFile_ops.scanf_ = psd_file_scanf;
+
+ context->ops_ = &psd_CxFile_ops;
+
+ }
+
+ static int32_t psd_file_size(psd_file_obj *obj)
+ { return ((CxFile*)obj)->Size(); }
+
+ static int32_t psd_file_seek(psd_file_obj *obj, int32_t offset, int32_t origin)
+ { return ((CxFile*)obj)->Seek(offset,origin); }
+
+ static int32_t psd_file_read(psd_file_obj *obj, void *buf, int32_t size, int32_t cnt)
+ { return ((CxFile*)obj)->Read(buf,size,cnt); }
+
+// static int32_t psd_file_write(psd_file_obj *obj, void *buf, int32_t size, int32_t cnt)
+// { return ((CxFile*)obj)->Write(buf,size,cnt); }
+
+// static int32_t psd_file_close(psd_file_obj *obj)
+// { return 1; /*((CxFile*)obj)->Close();*/ }
+
+// static char* psd_file_gets(psd_file_obj *obj, char *string, int32_t n)
+// { return ((CxFile*)obj)->GetS(string,n); }
+
+// static int32_t psd_file_eof(psd_file_obj *obj)
+// { return ((CxFile*)obj)->Eof(); }
+
+// static long psd_file_tell(psd_file_obj *obj)
+// { return ((CxFile*)obj)->Tell(); }
+
+// static int32_t psd_file_getc(psd_file_obj *obj)
+// { return ((CxFile*)obj)->GetC(); }
+
+// static int32_t psd_file_scanf(psd_file_obj *obj,const char *format, void* output)
+// { return ((CxFile*)obj)->Scanf(format, output); }
+
+ private:
+ psd_file_ops psd_CxFile_ops;
+ };
+#endif //CXIMAGE_USE_LIBPSD
+};
+
+#endif
+
+#endif
diff --git a/smelt/sdl/CxImage/ximaraw.cpp b/smelt/sdl/CxImage/ximaraw.cpp new file mode 100644 index 0000000..aedc50a --- /dev/null +++ b/smelt/sdl/CxImage/ximaraw.cpp @@ -0,0 +1,331 @@ +/*
+ * File: ximaraw.cpp
+ * Purpose: Platform Independent RAW Image Class Loader
+ * 16/Dec/2007 Davide Pizzolato - www.xdp.it
+ * CxImage version 7.0.0 31/Dec/2010
+ *
+ * CxImageRAW (c) May/2006 pdw63
+ *
+ * based on dcraw.c -- Dave Coffin's raw photo decoder
+ * Copyright 1997-2007 by Dave Coffin, dcoffin a cybercom o net
+ */
+
+#include "ximaraw.h"
+
+#if CXIMAGE_SUPPORT_RAW
+
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_SUPPORT_DECODE
+////////////////////////////////////////////////////////////////////////////////
+bool CxImageRAW::Decode(CxFile *hFile)
+{
+ if (hFile==NULL)
+ return false;
+
+ DCRAW dcr;
+
+ cx_try
+ {
+ // initialization
+ dcr_init_dcraw(&dcr);
+
+ dcr.opt.user_qual = GetCodecOption(CXIMAGE_FORMAT_RAW) & 0x03;
+
+ // setup variables for debugging
+ char szClass[] = "CxImageRAW";
+ dcr.ifname = szClass;
+ dcr.sz_error = info.szLastError;
+
+ // setup library options, see dcr_print_manual for the available switches
+ // call dcr_parse_command_line_options(&dcr,0,0,0) to set default options
+ // if (dcr_parse_command_line_options(&dcr,argc,argv,&arg))
+ if (dcr_parse_command_line_options(&dcr,0,0,0)){
+ cx_throw("CxImageRAW: unknown option");
+ }
+
+ // set return point for error handling
+ if (setjmp (dcr.failure)) {
+ cx_throw("");
+ }
+
+ // install file manager
+ CxFileRaw src(hFile,&dcr);
+
+ // check file header
+ dcr_identify(&dcr);
+
+ if(!dcr.is_raw){
+ cx_throw("CxImageRAW: not a raw image");
+ }
+
+ if (dcr.load_raw == NULL) {
+ cx_throw("CxImageRAW: missing raw decoder");
+ }
+
+ // verify special case
+ if (dcr.load_raw == dcr_kodak_ycbcr_load_raw) {
+ dcr.height += dcr.height & 1;
+ dcr.width += dcr.width & 1;
+ }
+
+ if (info.nEscape == -1){
+ head.biWidth = dcr.width;
+ head.biHeight= dcr.height;
+ info.dwType = CXIMAGE_FORMAT_RAW;
+ cx_throw("output dimensions returned");
+ }
+
+ // shrinked decoding available and requested?
+ dcr.shrink = dcr.filters && (dcr.opt.half_size || dcr.opt.threshold || dcr.opt.aber[0] != 1 || dcr.opt.aber[2] != 1);
+ dcr.iheight = (dcr.height + dcr.shrink) >> dcr.shrink;
+ dcr.iwidth = (dcr.width + dcr.shrink) >> dcr.shrink;
+
+ // install custom camera matrix
+ if (dcr.opt.use_camera_matrix && dcr.cmatrix[0][0] > 0.25) {
+ memcpy (dcr.rgb_cam, dcr.cmatrix, sizeof dcr.cmatrix);
+ dcr.raw_color = 0;
+ } else {
+ dcr.opt.use_camera_wb = 1;
+ }
+
+ // allocate memory for the image
+ dcr.image = (ushort (*)[4]) calloc (dcr.iheight*dcr.iwidth, sizeof *dcr.image);
+ dcr_merror (&dcr, dcr.image, szClass);
+
+ if (dcr.meta_length) {
+ dcr.meta_data = (char *) malloc (dcr.meta_length);
+ dcr_merror (&dcr, dcr.meta_data, szClass);
+ }
+
+ // start image decoder
+ hFile->Seek(dcr.data_offset, SEEK_SET);
+ (*dcr.load_raw)(&dcr);
+
+ // post processing
+ if (dcr.zero_is_bad) dcr_remove_zeroes(&dcr);
+
+ dcr_bad_pixels(&dcr,dcr.opt.bpfile);
+
+ if (dcr.opt.dark_frame) dcr_subtract (&dcr,dcr.opt.dark_frame);
+
+ dcr.quality = 2 + !dcr.fuji_width;
+
+ if (dcr.opt.user_qual >= 0) dcr.quality = dcr.opt.user_qual;
+
+ if (dcr.opt.user_black >= 0) dcr.black = dcr.opt.user_black;
+
+ if (dcr.opt.user_sat >= 0) dcr.maximum = dcr.opt.user_sat;
+
+#ifdef COLORCHECK
+ dcr_colorcheck(&dcr);
+#endif
+
+#if RESTRICTED
+ if (dcr.is_foveon && !dcr.opt.document_mode) dcr_foveon_interpolate(&dcr);
+#endif
+
+ if (!dcr.is_foveon && dcr.opt.document_mode < 2) dcr_scale_colors(&dcr);
+
+ // pixel interpolation and filters
+ dcr_pre_interpolate(&dcr);
+
+ if (dcr.filters && !dcr.opt.document_mode) {
+ if (dcr.quality == 0)
+ dcr_lin_interpolate(&dcr);
+ else if (dcr.quality == 1 || dcr.colors > 3)
+ dcr_vng_interpolate(&dcr);
+ else if (dcr.quality == 2)
+ dcr_ppg_interpolate(&dcr);
+ else
+ dcr_ahd_interpolate(&dcr);
+ }
+
+ if (dcr.mix_green) {
+ int32_t i;
+ for (dcr.colors=3, i=0; i < dcr.height*dcr.width; i++) {
+ dcr.image[i][1] = (dcr.image[i][1] + dcr.image[i][3]) >> 1;
+ }
+ }
+
+ if (!dcr.is_foveon && dcr.colors == 3) dcr_median_filter(&dcr);
+
+ if (!dcr.is_foveon && dcr.opt.highlight == 2) dcr_blend_highlights(&dcr);
+
+ if (!dcr.is_foveon && dcr.opt.highlight > 2) dcr_recover_highlights(&dcr);
+
+ if (dcr.opt.use_fuji_rotate) dcr_fuji_rotate(&dcr);
+
+#ifndef NO_LCMS
+ if (dcr.opt.cam_profile) dcr_apply_profile (dcr.opt.cam_profile, dcr.opt.out_profile);
+#endif
+
+ // final conversion
+ dcr_convert_to_rgb(&dcr);
+
+ if (dcr.opt.use_fuji_rotate) dcr_stretch(&dcr);
+
+ dcr.iheight = dcr.height;
+ dcr.iwidth = dcr.width;
+ if (dcr.flip & 4) SWAP(dcr.height,dcr.width);
+
+ // ready to transfer data from dcr.image
+ if (!Create(dcr.width,dcr.height,24,CXIMAGE_FORMAT_RAW)){
+ cx_throw("");
+ }
+
+ uchar *ppm = (uchar *) calloc (dcr.width, dcr.colors*dcr.opt.output_bps/8);
+ ushort *ppm2 = (ushort *) ppm;
+ dcr_merror (&dcr, ppm, szClass);
+
+ uchar lut[0x10000];
+ if (dcr.opt.output_bps == 8) dcr_gamma_lut (&dcr, lut);
+
+ int32_t c, row, col, soff, rstep, cstep;
+ soff = dcr_flip_index (&dcr, 0, 0);
+ cstep = dcr_flip_index (&dcr, 0, 1) - soff;
+ rstep = dcr_flip_index (&dcr, 1, 0) - dcr_flip_index (&dcr, 0, dcr.width);
+ for (row=0; row < dcr.height; row++, soff += rstep) {
+ for (col=0; col < dcr.width; col++, soff += cstep) {
+ if (dcr.opt.output_bps == 8)
+ for (c=0; c < dcr.colors; c++) ppm [col*dcr.colors+c] = lut[dcr.image[soff][c]];
+ else
+ for (c=0; c < dcr.colors; c++) ppm2[col*dcr.colors+c] = dcr.image[soff][c];
+ }
+ if (dcr.opt.output_bps == 16 && !dcr.opt.output_tiff && htons(0x55aa) != 0x55aa)
+#if defined(_LINUX) || defined(__APPLE__)
+ swab ((char*)ppm2, (char*)ppm2, dcr.width*dcr.colors*2);
+#else
+ _swab ((char*)ppm2, (char*)ppm2, dcr.width*dcr.colors*2);
+#endif
+
+ uint32_t size = dcr.width * (dcr.colors*dcr.opt.output_bps/8);
+ RGBtoBGR(ppm,size);
+ memcpy(GetBits(dcr.height - 1 - row), ppm, min(size,GetEffWidth()));
+ }
+ free (ppm);
+
+
+ dcr_cleanup_dcraw(&dcr);
+
+ } cx_catch {
+
+ dcr_cleanup_dcraw(&dcr);
+
+ if (strcmp(message,"")) strncpy(info.szLastError,message,255);
+ if (info.nEscape == -1 && info.dwType == CXIMAGE_FORMAT_RAW) return true;
+ return false;
+ }
+ /* that's it */
+ return true;
+}
+
+#if CXIMAGE_SUPPORT_EXIF
+bool CxImageRAW::GetExifThumbnail(const TCHAR *filename, const TCHAR *outname, int32_t type)
+{
+ DCRAW dcr;
+
+ CxIOFile file;
+ if (!file.Open(filename, _T("rb")))
+ return false;
+
+ cx_try
+ {
+ // initialization
+ dcr_init_dcraw(&dcr);
+
+ dcr.opt.user_qual = GetCodecOption(CXIMAGE_FORMAT_RAW) & 0x03;
+
+ // setup variables for debugging
+ char szClass[] = "CxImageRAW";
+ dcr.ifname = szClass;
+ dcr.sz_error = info.szLastError;
+
+ // setup library options, see dcr_print_manual for the available switches
+ // call dcr_parse_command_line_options(&dcr,0,0,0) to set default options
+ // if (dcr_parse_command_line_options(&dcr,argc,argv,&arg))
+ if (dcr_parse_command_line_options(&dcr,0,0,0)){
+ cx_throw("CxImageRAW: unknown option");
+ }
+
+ // set return point for error handling
+ if (setjmp (dcr.failure)) {
+ cx_throw("");
+ }
+
+ // install file manager
+ CxFileRaw src(&file,&dcr);
+
+ // check file header
+ dcr_identify(&dcr);
+
+ if(!dcr.is_raw){
+ cx_throw("CxImageRAW: not a raw image");
+ }
+
+ if (dcr.load_raw == NULL) {
+ cx_throw("CxImageRAW: missing raw decoder");
+ }
+
+ // THUMB.
+ if (dcr.thumb_offset != 0)
+ {
+ FILE* file = _tfopen(outname, _T("wb"));
+ DCRAW* p = &dcr;
+ dcr_fseek(dcr.obj_, dcr.thumb_offset, SEEK_SET);
+ dcr.write_thumb(&dcr, file);
+ fclose(file);
+
+ // Read in the thumbnail to resize and rotate.
+ CxImage image(outname, CXIMAGE_FORMAT_UNKNOWN);
+ if (image.IsValid())
+ {
+ // Resizing.
+ if (image.GetWidth() > 256 || image.GetHeight() > 256)
+ {
+ float amount = 256.0f / max(image.GetWidth(), image.GetHeight());
+ image.Resample((int32_t)(image.GetWidth() * amount), (int32_t)(image.GetHeight() * amount), 0);
+ }
+
+ // Rotation.
+ if (p->flip != 0)
+ image.RotateExif(p->flip);
+
+ return image.Save(outname, CXIMAGE_FORMAT_JPG);
+ }
+ }
+ else
+ {
+ cx_throw("No thumbnail!");
+ }
+
+ dcr_cleanup_dcraw(&dcr);
+
+ } cx_catch {
+
+ dcr_cleanup_dcraw(&dcr);
+
+ if (strcmp(message,"")) strncpy(info.szLastError,message,255);
+ if (info.nEscape == -1 && info.dwType == CXIMAGE_FORMAT_RAW) return true;
+ return false;
+ }
+ /* that's it */
+ return true;
+}
+#endif //CXIMAGE_SUPPORT_EXIF
+
+////////////////////////////////////////////////////////////////////////////////
+#endif //CXIMAGE_SUPPORT_DECODE
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_SUPPORT_ENCODE
+////////////////////////////////////////////////////////////////////////////////
+bool CxImageRAW::Encode(CxFile * hFile)
+{
+ if (hFile == NULL) return false;
+ strcpy(info.szLastError, "Save RAW not supported");
+ return false;
+}
+////////////////////////////////////////////////////////////////////////////////
+#endif // CXIMAGE_SUPPORT_ENCODE
+////////////////////////////////////////////////////////////////////////////////
+#endif // CXIMAGE_SUPPORT_RAW
+
diff --git a/smelt/sdl/CxImage/ximaraw.h b/smelt/sdl/CxImage/ximaraw.h new file mode 100644 index 0000000..2fe4961 --- /dev/null +++ b/smelt/sdl/CxImage/ximaraw.h @@ -0,0 +1,112 @@ +/*
+ * File: ximaraw.h
+ * Purpose: RAW Image Class Loader and Writer
+ */
+/* ==========================================================
+ * CxImageRAW (c) May/2006 pdw63
+ * For conditions of distribution and use, see copyright notice in ximage.h
+ * Special thanks to David Coffin for dcraw without which this class would not exist
+ *
+ * libdcr (c) Dec/2007 Davide Pizzolato - www.xdp.it
+ *
+ * based on dcraw.c -- Dave Coffin's raw photo decoder
+ * Copyright 1997-2007 by Dave Coffin, dcoffin a cybercom o net
+ * ==========================================================
+ */
+#if !defined(__ximaRAW_h)
+#define __ximaRAW_h
+
+#include "ximage.h"
+
+#if CXIMAGE_SUPPORT_RAW
+
+extern "C" {
+ #include "../raw/libdcr.h"
+}
+
+class CxImageRAW: public CxImage
+{
+
+public:
+ CxImageRAW(): CxImage(CXIMAGE_FORMAT_RAW) {}
+
+// bool Load(const char * imageFileName){ return CxImage::Load(imageFileName,CXIMAGE_FORMAT_ICO);}
+// bool Save(const char * imageFileName){ return CxImage::Save(imageFileName,CXIMAGE_FORMAT_ICO);}
+ bool Decode(CxFile * hFile);
+ bool Decode(FILE *hFile) { CxIOFile file(hFile); return Decode(&file); }
+
+#if CXIMAGE_SUPPORT_EXIF
+ bool GetExifThumbnail(const TCHAR *filename, const TCHAR *outname, int32_t type);
+#endif //CXIMAGE_SUPPORT_EXIF
+
+#if CXIMAGE_SUPPORT_ENCODE
+ bool Encode(CxFile * hFile);
+ bool Encode(FILE *hFile) { CxIOFile file(hFile); return Encode(&file); }
+#endif // CXIMAGE_SUPPORT_ENCODE
+
+ enum CODEC_OPTION
+ {
+ DECODE_QUALITY_LIN = 0x00,
+ DECODE_QUALITY_VNG = 0x01,
+ DECODE_QUALITY_PPG = 0x02,
+ DECODE_QUALITY_AHD = 0x03,
+ };
+
+protected:
+
+ class CxFileRaw
+ {
+ public:
+ CxFileRaw(CxFile* pFile,DCRAW *stream)
+ {
+ stream->obj_ = pFile;
+
+ ras_stream_CxFile.read_ = raw_sfile_read;
+ ras_stream_CxFile.write_ = raw_sfile_write;
+ ras_stream_CxFile.seek_ = raw_sfile_seek;
+ ras_stream_CxFile.close_ = raw_sfile_close;
+ ras_stream_CxFile.gets_ = raw_sfile_gets;
+ ras_stream_CxFile.eof_ = raw_sfile_eof;
+ ras_stream_CxFile.tell_ = raw_sfile_tell;
+ ras_stream_CxFile.getc_ = raw_sfile_getc;
+ ras_stream_CxFile.scanf_ = raw_sfile_scanf;
+
+ stream->ops_ = &ras_stream_CxFile;
+
+ }
+
+ static int32_t raw_sfile_read(dcr_stream_obj *obj, void *buf, int32_t size, int32_t cnt)
+ { return ((CxFile*)obj)->Read(buf,size,cnt); }
+
+ static int32_t raw_sfile_write(dcr_stream_obj *obj, void *buf, int32_t size, int32_t cnt)
+ { return ((CxFile*)obj)->Write(buf,size,cnt); }
+
+ static long raw_sfile_seek(dcr_stream_obj *obj, long offset, int32_t origin)
+ { return ((CxFile*)obj)->Seek(offset,origin); }
+
+ static int32_t raw_sfile_close(dcr_stream_obj *obj)
+ { return 1; /*((CxFile*)obj)->Close();*/ }
+
+ static char* raw_sfile_gets(dcr_stream_obj *obj, char *string, int32_t n)
+ { return ((CxFile*)obj)->GetS(string,n); }
+
+ static int32_t raw_sfile_eof(dcr_stream_obj *obj)
+ { return ((CxFile*)obj)->Eof(); }
+
+ static long raw_sfile_tell(dcr_stream_obj *obj)
+ { return ((CxFile*)obj)->Tell(); }
+
+ static int32_t raw_sfile_getc(dcr_stream_obj *obj)
+ { return ((CxFile*)obj)->GetC(); }
+
+ static int32_t raw_sfile_scanf(dcr_stream_obj *obj,const char *format, void* output)
+ { return ((CxFile*)obj)->Scanf(format, output); }
+
+ private:
+ dcr_stream_ops ras_stream_CxFile;
+ };
+};
+
+#endif
+
+#endif
diff --git a/smelt/sdl/CxImage/ximasel.cpp b/smelt/sdl/CxImage/ximasel.cpp new file mode 100644 index 0000000..c50ff99 --- /dev/null +++ b/smelt/sdl/CxImage/ximasel.cpp @@ -0,0 +1,698 @@ +// xImaSel.cpp : Selection functions
+/* 07/08/2001 v1.00 - Davide Pizzolato - www.xdp.it
+ * CxImage version 7.0.0 31/Dec/2010
+ */
+
+#include "ximage.h"
+
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Checks if the image has a valid selection.
+ */
+bool CxImage::SelectionIsValid()
+{
+ return pSelection!=0;
+}
+
+#if CXIMAGE_SUPPORT_SELECTION
+
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Gets the smallest rectangle that contains the selection
+ */
+void CxImage::SelectionGetBox(RECT& r)
+{
+ memcpy(&r,&info.rSelectionBox,sizeof(RECT));
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Empties the selection.
+ */
+bool CxImage::SelectionClear(uint8_t level)
+{
+ if (pSelection){
+ if (level==0){
+ memset(pSelection,0,head.biWidth * head.biHeight);
+ info.rSelectionBox.left = head.biWidth;
+ info.rSelectionBox.bottom = head.biHeight;
+ info.rSelectionBox.right = info.rSelectionBox.top = 0;
+ } else {
+ memset(pSelection,level,head.biWidth * head.biHeight);
+ info.rSelectionBox.right = head.biWidth;
+ info.rSelectionBox.top = head.biHeight;
+ info.rSelectionBox.left = info.rSelectionBox.bottom = 0;
+ }
+ return true;
+ }
+ return false;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Allocates an empty selection.
+ */
+bool CxImage::SelectionCreate()
+{
+ SelectionDelete();
+ pSelection = (uint8_t*)calloc(head.biWidth * head.biHeight, 1);
+ return (pSelection!=0);
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Deallocates the selction.
+ */
+bool CxImage::SelectionDelete()
+{
+ if (pSelection){
+ free(pSelection);
+ pSelection=NULL;
+ }
+ info.rSelectionBox.left = head.biWidth;
+ info.rSelectionBox.bottom = head.biHeight;
+ info.rSelectionBox.right = info.rSelectionBox.top = 0;
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Checks if the coordinates are inside the selection.
+ */
+bool CxImage::SelectionIsInside(int32_t x, int32_t y)
+{
+ if (IsInside(x,y)){
+ if (pSelection==NULL) return true;
+ return pSelection[x+y*head.biWidth]!=0;
+ }
+ return false;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Checks if the coordinates are inside the selection.
+ * "blind" version assumes that (x,y) is inside to the image.
+ */
+bool CxImage::BlindSelectionIsInside(int32_t x, int32_t y)
+{
+#ifdef _DEBUG
+ if (!IsInside(x,y))
+ #if CXIMAGE_SUPPORT_EXCEPTION_HANDLING
+ throw 0;
+ #else
+ return 0;
+ #endif
+#endif
+ if (pSelection==NULL) return true;
+ return pSelection[x+y*head.biWidth]!=0;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Adds a rectangle to the existing selection.
+ */
+bool CxImage::SelectionAddRect(RECT r, uint8_t level)
+{
+ if (pSelection==NULL) SelectionCreate();
+ if (pSelection==NULL) return false;
+
+ RECT r2;
+ if (r.left<r.right) {r2.left=r.left; r2.right=r.right; } else {r2.left=r.right ; r2.right=r.left; }
+ if (r.bottom<r.top) {r2.bottom=r.bottom; r2.top=r.top; } else {r2.bottom=r.top ; r2.top=r.bottom; }
+
+ if (info.rSelectionBox.top <= r2.top) info.rSelectionBox.top = max(0L,min(head.biHeight,r2.top+1));
+ if (info.rSelectionBox.left > r2.left) info.rSelectionBox.left = max(0L,min(head.biWidth,r2.left));
+ if (info.rSelectionBox.right <= r2.right) info.rSelectionBox.right = max(0L,min(head.biWidth,r2.right+1));
+ if (info.rSelectionBox.bottom > r2.bottom) info.rSelectionBox.bottom = max(0L,min(head.biHeight,r2.bottom));
+
+ int32_t ymin = max(0L,min(head.biHeight,r2.bottom));
+ int32_t ymax = max(0L,min(head.biHeight,r2.top+1));
+ int32_t xmin = max(0L,min(head.biWidth,r2.left));
+ int32_t xmax = max(0L,min(head.biWidth,r2.right+1));
+
+ for (int32_t y=ymin; y<ymax; y++)
+ memset(pSelection + xmin + y * head.biWidth, level, xmax-xmin);
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Adds an ellipse to the existing selection.
+ */
+bool CxImage::SelectionAddEllipse(RECT r, uint8_t level)
+{
+ if (pSelection==NULL) SelectionCreate();
+ if (pSelection==NULL) return false;
+
+ int32_t xradius = abs(r.right - r.left)/2;
+ int32_t yradius = abs(r.top - r.bottom)/2;
+ if (xradius==0 || yradius==0) return false;
+
+ int32_t xcenter = (r.right + r.left)/2;
+ int32_t ycenter = (r.top + r.bottom)/2;
+
+ if (info.rSelectionBox.left > (xcenter - xradius)) info.rSelectionBox.left = max(0L,min(head.biWidth,(xcenter - xradius)));
+ if (info.rSelectionBox.right <= (xcenter + xradius)) info.rSelectionBox.right = max(0L,min(head.biWidth,(xcenter + xradius + 1)));
+ if (info.rSelectionBox.bottom > (ycenter - yradius)) info.rSelectionBox.bottom = max(0L,min(head.biHeight,(ycenter - yradius)));
+ if (info.rSelectionBox.top <= (ycenter + yradius)) info.rSelectionBox.top = max(0L,min(head.biHeight,(ycenter + yradius + 1)));
+
+ int32_t xmin = max(0L,min(head.biWidth,xcenter - xradius));
+ int32_t xmax = max(0L,min(head.biWidth,xcenter + xradius + 1));
+ int32_t ymin = max(0L,min(head.biHeight,ycenter - yradius));
+ int32_t ymax = max(0L,min(head.biHeight,ycenter + yradius + 1));
+
+ int32_t y,yo;
+ for (y=ymin; y<min(ycenter,ymax); y++){
+ for (int32_t x=xmin; x<xmax; x++){
+ yo = (int32_t)(ycenter - yradius * sqrt(1-pow((float)(x - xcenter)/(float)xradius,2)));
+ if (yo<y) pSelection[x + y * head.biWidth] = level;
+ }
+ }
+ for (y=ycenter; y<ymax; y++){
+ for (int32_t x=xmin; x<xmax; x++){
+ yo = (int32_t)(ycenter + yradius * sqrt(1-pow((float)(x - xcenter)/(float)xradius,2)));
+ if (yo>y) pSelection[x + y * head.biWidth] = level;
+ }
+ }
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Inverts the selection.
+ * Note: the SelectionBox is set to "full image", call SelectionGetBox before (if necessary)
+ */
+bool CxImage::SelectionInvert()
+{
+ if (pSelection) {
+ uint8_t *iSrc=pSelection;
+ int32_t n=head.biHeight*head.biWidth;
+ for(int32_t i=0; i < n; i++){
+ *iSrc=(uint8_t)~(*(iSrc));
+ iSrc++;
+ }
+
+ SelectionRebuildBox();
+
+ return true;
+ }
+ return false;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Imports an existing region from another image with the same width and height.
+ */
+bool CxImage::SelectionCopy(CxImage &from)
+{
+ if (from.pSelection == NULL || head.biWidth != from.head.biWidth || head.biHeight != from.head.biHeight) return false;
+ if (pSelection==NULL) pSelection = (uint8_t*)malloc(head.biWidth * head.biHeight);
+ if (pSelection==NULL) return false;
+ memcpy(pSelection,from.pSelection,head.biWidth * head.biHeight);
+ memcpy(&info.rSelectionBox,&from.info.rSelectionBox,sizeof(RECT));
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Adds a polygonal region to the existing selection. points points to an array of POINT structures.
+ * Each structure specifies the x-coordinate and y-coordinate of one vertex of the polygon.
+ * npoints specifies the number of POINT structures in the array pointed to by points.
+ */
+bool CxImage::SelectionAddPolygon(POINT *points, int32_t npoints, uint8_t level)
+{
+ if (points==NULL || npoints<3) return false;
+
+ if (pSelection==NULL) SelectionCreate();
+ if (pSelection==NULL) return false;
+
+ uint8_t* plocal = (uint8_t*)calloc(head.biWidth*head.biHeight, 1);
+ RECT localbox = {head.biWidth,0,0,head.biHeight};
+
+ int32_t x,y,i=0;
+ POINT *current;
+ POINT *next = NULL;
+ POINT *start = NULL;
+ //trace contour
+ while (i < npoints){
+ current = &points[i];
+ if (current->x!=-1){
+ if (i==0 || (i>0 && points[i-1].x==-1)) start = &points[i];
+
+ if ((i+1)==npoints || points[i+1].x==-1)
+ next = start;
+ else
+ next = &points[i+1];
+
+ float beta;
+ if (current->x != next->x){
+ beta = (float)(next->y - current->y)/(float)(next->x - current->x);
+ if (current->x < next->x){
+ for (x=current->x; x<=next->x; x++){
+ y = (int32_t)(current->y + (x - current->x) * beta);
+ if (IsInside(x,y)) plocal[x + y * head.biWidth] = 255;
+ }
+ } else {
+ for (x=current->x; x>=next->x; x--){
+ y = (int32_t)(current->y + (x - current->x) * beta);
+ if (IsInside(x,y)) plocal[x + y * head.biWidth] = 255;
+ }
+ }
+ }
+ if (current->y != next->y){
+ beta = (float)(next->x - current->x)/(float)(next->y - current->y);
+ if (current->y < next->y){
+ for (y=current->y; y<=next->y; y++){
+ x = (int32_t)(current->x + (y - current->y) * beta);
+ if (IsInside(x,y)) plocal[x + y * head.biWidth] = 255;
+ }
+ } else {
+ for (y=current->y; y>=next->y; y--){
+ x = (int32_t)(current->x + (y - current->y) * beta);
+ if (IsInside(x,y)) plocal[x + y * head.biWidth] = 255;
+ }
+ }
+ }
+ }
+
+ RECT r2;
+ if (current->x < next->x) {r2.left=current->x; r2.right=next->x; } else {r2.left=next->x ; r2.right=current->x; }
+ if (current->y < next->y) {r2.bottom=current->y; r2.top=next->y; } else {r2.bottom=next->y ; r2.top=current->y; }
+ if (localbox.top < r2.top) localbox.top = max(0L,min(head.biHeight-1,r2.top+1));
+ if (localbox.left > r2.left) localbox.left = max(0L,min(head.biWidth-1,r2.left-1));
+ if (localbox.right < r2.right) localbox.right = max(0L,min(head.biWidth-1,r2.right+1));
+ if (localbox.bottom > r2.bottom) localbox.bottom = max(0L,min(head.biHeight-1,r2.bottom-1));
+
+ i++;
+ }
+
+ //fill the outer region
+ int32_t npix=(localbox.right - localbox.left)*(localbox.top - localbox.bottom);
+ POINT* pix = (POINT*)calloc(npix,sizeof(POINT));
+ uint8_t back=0, mark=1;
+ int32_t fx, fy, fxx, fyy, first, last;
+ int32_t xmin = 0;
+ int32_t xmax = 0;
+ int32_t ymin = 0;
+ int32_t ymax = 0;
+
+ for (int32_t side=0; side<4; side++){
+ switch(side){
+ case 0:
+ xmin=localbox.left; xmax=localbox.right+1; ymin=localbox.bottom; ymax=localbox.bottom+1;
+ break;
+ case 1:
+ xmin=localbox.right; xmax=localbox.right+1; ymin=localbox.bottom; ymax=localbox.top+1;
+ break;
+ case 2:
+ xmin=localbox.left; xmax=localbox.right+1; ymin=localbox.top; ymax=localbox.top+1;
+ break;
+ case 3:
+ xmin=localbox.left; xmax=localbox.left+1; ymin=localbox.bottom; ymax=localbox.top+1;
+ break;
+ }
+ //fill from the border points
+ for(y=ymin;y<ymax;y++){
+ for(x=xmin;x<xmax;x++){
+ if (plocal[x+y*head.biWidth]==0){
+ // Subject: FLOOD FILL ROUTINE Date: 12-23-97 (00:57)
+ // Author: Petter Holmberg Code: QB, QBasic, PDS
+ // Origin: petter.holmberg@usa.net Packet: GRAPHICS.ABC
+ first=0;
+ last=1;
+ while(first!=last){
+ fx = pix[first].x;
+ fy = pix[first].y;
+ fxx = fx + x;
+ fyy = fy + y;
+ for(;;)
+ {
+ if ((plocal[fxx + fyy*head.biWidth] == back) &&
+ fxx>=localbox.left && fxx<=localbox.right && fyy>=localbox.bottom && fyy<=localbox.top )
+ {
+ plocal[fxx + fyy*head.biWidth] = mark;
+ if (fyy > 0 && plocal[fxx + (fyy - 1)*head.biWidth] == back){
+ pix[last].x = fx;
+ pix[last].y = fy - 1;
+ last++;
+ if (last == npix) last = 0;
+ }
+ if ((fyy + 1)<head.biHeight && plocal[fxx + (fyy + 1)*head.biWidth] == back){
+ pix[last].x = fx;
+ pix[last].y = fy + 1;
+ last++;
+ if (last == npix) last = 0;
+ }
+ } else {
+ break;
+ }
+ fx++;
+ fxx++;
+ };
+
+ fx = pix[first].x - 1;
+ fy = pix[first].y;
+ fxx = fx + x;
+ fyy = fy + y;
+
+ for( ;; )
+ {
+ if ((plocal[fxx + fyy*head.biWidth] == back) &&
+ fxx>=localbox.left && fxx<=localbox.right && fyy>=localbox.bottom && fyy<=localbox.top )
+ {
+ plocal[fxx + (y + fy)*head.biWidth] = mark;
+ if (fyy > 0 && plocal[fxx + (fyy - 1)*head.biWidth] == back){
+ pix[last].x = fx;
+ pix[last].y = fy - 1;
+ last++;
+ if (last == npix) last = 0;
+ }
+ if ((fyy + 1)<head.biHeight && plocal[fxx + (fyy + 1)*head.biWidth] == back){
+ pix[last].x = fx;
+ pix[last].y = fy + 1;
+ last++;
+ if (last == npix) last = 0;
+ }
+ } else {
+ break;
+ }
+ fx--;
+ fxx--;
+ }
+
+ first++;
+ if (first == npix) first = 0;
+ }
+ }
+ }
+ }
+ }
+
+ //transfer the region
+ int32_t yoffset;
+ for (y=localbox.bottom; y<=localbox.top; y++){
+ yoffset = y * head.biWidth;
+ for (x=localbox.left; x<=localbox.right; x++)
+ if (plocal[x + yoffset]!=1) pSelection[x + yoffset]=level;
+ }
+ if (info.rSelectionBox.top <= localbox.top) info.rSelectionBox.top = min(head.biHeight,localbox.top + 1);
+ if (info.rSelectionBox.left > localbox.left) info.rSelectionBox.left = min(head.biWidth,localbox.left);
+ if (info.rSelectionBox.right <= localbox.right) info.rSelectionBox.right = min(head.biWidth,localbox.right + 1);
+ if (info.rSelectionBox.bottom > localbox.bottom) info.rSelectionBox.bottom = min(head.biHeight,localbox.bottom);
+
+ free(plocal);
+ free(pix);
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Adds to the selection all the pixels matching the specified color.
+ */
+bool CxImage::SelectionAddColor(RGBQUAD c, uint8_t level)
+{
+ if (pSelection==NULL) SelectionCreate();
+ if (pSelection==NULL) return false;
+
+ RECT localbox = {head.biWidth,0,0,head.biHeight};
+
+ for (int32_t y = 0; y < head.biHeight; y++){
+ for (int32_t x = 0; x < head.biWidth; x++){
+ RGBQUAD color = BlindGetPixelColor(x, y);
+ if (color.rgbRed == c.rgbRed &&
+ color.rgbGreen == c.rgbGreen &&
+ color.rgbBlue == c.rgbBlue)
+ {
+ pSelection[x + y * head.biWidth] = level;
+
+ if (localbox.top < y) localbox.top = y;
+ if (localbox.left > x) localbox.left = x;
+ if (localbox.right < x) localbox.right = x;
+ if (localbox.bottom > y) localbox.bottom = y;
+ }
+ }
+ }
+
+ if (info.rSelectionBox.top <= localbox.top) info.rSelectionBox.top = localbox.top + 1;
+ if (info.rSelectionBox.left > localbox.left) info.rSelectionBox.left = localbox.left;
+ if (info.rSelectionBox.right <= localbox.right) info.rSelectionBox.right = localbox.right + 1;
+ if (info.rSelectionBox.bottom > localbox.bottom) info.rSelectionBox.bottom = localbox.bottom;
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Adds a single pixel to the existing selection.
+ */
+bool CxImage::SelectionAddPixel(int32_t x, int32_t y, uint8_t level)
+{
+ if (pSelection==NULL) SelectionCreate();
+ if (pSelection==NULL) return false;
+
+ if (IsInside(x,y)) {
+ pSelection[x + y * head.biWidth] = level; // set the correct mask bit
+
+ if (info.rSelectionBox.top <= y) info.rSelectionBox.top = y+1;
+ if (info.rSelectionBox.left > x) info.rSelectionBox.left = x;
+ if (info.rSelectionBox.right <= x) info.rSelectionBox.right = x+1;
+ if (info.rSelectionBox.bottom > y) info.rSelectionBox.bottom = y;
+
+ return true;
+ }
+
+ return false;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Exports the selection channel in a 8bpp grayscale image.
+ */
+bool CxImage::SelectionSplit(CxImage *dest)
+{
+ if (!pSelection || !dest) return false;
+
+ CxImage tmp(head.biWidth,head.biHeight,8);
+ if (!tmp.IsValid()){
+ strcpy(info.szLastError,tmp.GetLastError());
+ return false;
+ }
+
+ for(int32_t y=0; y<head.biHeight; y++){
+ for(int32_t x=0; x<head.biWidth; x++){
+ tmp.BlindSetPixelIndex(x,y,pSelection[x+y*head.biWidth]);
+ }
+ }
+
+ tmp.SetGrayPalette();
+ dest->Transfer(tmp);
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Creates the selection channel from a gray scale image.
+ * black = unselected
+ */
+bool CxImage::SelectionSet(CxImage &from)
+{
+ if (!from.IsGrayScale() || head.biWidth != from.head.biWidth || head.biHeight != from.head.biHeight){
+ strcpy(info.szLastError,"CxImage::SelectionSet: wrong width or height, or image is not gray scale");
+ return false;
+ }
+
+ if (pSelection==NULL) pSelection = (uint8_t*)malloc(head.biWidth * head.biHeight);
+
+ uint8_t* src = from.info.pImage;
+ uint8_t* dst = pSelection;
+ if (src==NULL || dst==NULL){
+ strcpy(info.szLastError,"CxImage::SelectionSet: null pointer");
+ return false;
+ }
+
+ for (int32_t y=0; y<head.biHeight; y++){
+ memcpy(dst,src,head.biWidth);
+ dst += head.biWidth;
+ src += from.info.dwEffWidth;
+ }
+
+ SelectionRebuildBox();
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Sets the Selection level for a single pixel
+ * internal use only: doesn't set SelectionBox. Use SelectionAddPixel
+ */
+void CxImage::SelectionSet(const int32_t x,const int32_t y,const uint8_t level)
+{
+ if (pSelection && IsInside(x,y)) pSelection[x+y*head.biWidth]=level;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Gets the Selection level for a single pixel
+ */
+uint8_t CxImage::SelectionGet(const int32_t x,const int32_t y)
+{
+ if (pSelection && IsInside(x,y)) return pSelection[x+y*head.biWidth];
+ return 0;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Rebuilds the SelectionBox
+ */
+void CxImage::SelectionRebuildBox()
+{
+ info.rSelectionBox.left = head.biWidth;
+ info.rSelectionBox.bottom = head.biHeight;
+ info.rSelectionBox.right = info.rSelectionBox.top = 0;
+
+ if (!pSelection)
+ return;
+
+ int32_t x,y;
+
+ for (y=0; y<head.biHeight; y++){
+ for (x=0; x<info.rSelectionBox.left; x++){
+ if (pSelection[x+y*head.biWidth]){
+ info.rSelectionBox.left = x;
+ continue;
+ }
+ }
+ }
+
+ for (y=0; y<head.biHeight; y++){
+ for (x=head.biWidth-1; x>=info.rSelectionBox.right; x--){
+ if (pSelection[x+y*head.biWidth]){
+ info.rSelectionBox.right = x+1;
+ continue;
+ }
+ }
+ }
+
+ for (x=0; x<head.biWidth; x++){
+ for (y=0; y<info.rSelectionBox.bottom; y++){
+ if (pSelection[x+y*head.biWidth]){
+ info.rSelectionBox.bottom = y;
+ continue;
+ }
+ }
+ }
+
+ for (x=0; x<head.biWidth; x++){
+ for (y=head.biHeight-1; y>=info.rSelectionBox.top; y--){
+ if (pSelection[x+y*head.biWidth]){
+ info.rSelectionBox.top = y+1;
+ continue;
+ }
+ }
+ }
+
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Gets the Selection level for a single pixel
+ * "blind" version assumes that (x,y) is inside to the image.
+ */
+uint8_t CxImage::BlindSelectionGet(const int32_t x,const int32_t y)
+{
+#ifdef _DEBUG
+ if (!IsInside(x,y) || (pSelection==0))
+ #if CXIMAGE_SUPPORT_EXCEPTION_HANDLING
+ throw 0;
+ #else
+ return 0;
+ #endif
+#endif
+ return pSelection[x+y*head.biWidth];
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Returns pointer to selection data for pixel (x,y).
+ */
+uint8_t* CxImage::SelectionGetPointer(const int32_t x,const int32_t y)
+{
+ if (pSelection && IsInside(x,y)) return pSelection+x+y*head.biWidth;
+ return 0;
+}
+////////////////////////////////////////////////////////////////////////////////
+bool CxImage::SelectionFlip()
+{
+ if (!pSelection) return false;
+
+ uint8_t *buff = (uint8_t*)malloc(head.biWidth);
+ if (!buff) return false;
+
+ uint8_t *iSrc,*iDst;
+ iSrc = pSelection + (head.biHeight-1)*head.biWidth;
+ iDst = pSelection;
+ for (int32_t i=0; i<(head.biHeight/2); ++i)
+ {
+ memcpy(buff, iSrc, head.biWidth);
+ memcpy(iSrc, iDst, head.biWidth);
+ memcpy(iDst, buff, head.biWidth);
+ iSrc-=head.biWidth;
+ iDst+=head.biWidth;
+ }
+
+ free(buff);
+
+ int32_t top = info.rSelectionBox.top;
+ info.rSelectionBox.top = head.biHeight - info.rSelectionBox.bottom;
+ info.rSelectionBox.bottom = head.biHeight - top;
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+bool CxImage::SelectionMirror()
+{
+ if (!pSelection) return false;
+ uint8_t* pSelection2 = (uint8_t*)malloc(head.biWidth * head.biHeight);
+ if (!pSelection2) return false;
+
+ uint8_t *iSrc,*iDst;
+ int32_t wdt=head.biWidth-1;
+ iSrc=pSelection + wdt;
+ iDst=pSelection2;
+ for(int32_t y=0; y < head.biHeight; y++){
+ for(int32_t x=0; x <= wdt; x++)
+ *(iDst+x)=*(iSrc-x);
+ iSrc+=head.biWidth;
+ iDst+=head.biWidth;
+ }
+ free(pSelection);
+ pSelection=pSelection2;
+
+ int32_t left = info.rSelectionBox.left;
+ info.rSelectionBox.left = head.biWidth - info.rSelectionBox.right;
+ info.rSelectionBox.right = head.biWidth - left;
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_SUPPORT_WINDOWS
+/**
+ * Converts the selection in a HRGN object.
+ */
+bool CxImage::SelectionToHRGN(HRGN& region)
+{
+ if (pSelection && region){
+ for(int32_t y = 0; y < head.biHeight; y++){
+ HRGN hTemp = NULL;
+ int32_t iStart = -1;
+ int32_t x = 0;
+ for(; x < head.biWidth; x++){
+ if (pSelection[x + y * head.biWidth] != 0){
+ if (iStart == -1) iStart = x;
+ continue;
+ }else{
+ if (iStart >= 0){
+ hTemp = CreateRectRgn(iStart, y, x, y + 1);
+ CombineRgn(region, hTemp, region, RGN_OR);
+ DeleteObject(hTemp);
+ iStart = -1;
+ }
+ }
+ }
+ if (iStart >= 0){
+ hTemp = CreateRectRgn(iStart, y, x, y + 1);
+ CombineRgn(region, hTemp, region, RGN_OR);
+ DeleteObject(hTemp);
+ iStart = -1;
+ }
+ }
+ return true;
+ }
+ return false;
+}
+#endif //CXIMAGE_SUPPORT_WINDOWS
+////////////////////////////////////////////////////////////////////////////////
+#endif //CXIMAGE_SUPPORT_SELECTION
diff --git a/smelt/sdl/CxImage/ximaska.cpp b/smelt/sdl/CxImage/ximaska.cpp new file mode 100644 index 0000000..6f1b1c2 --- /dev/null +++ b/smelt/sdl/CxImage/ximaska.cpp @@ -0,0 +1,126 @@ +/*
+ * File: ximaska.cpp
+ * Purpose: Platform Independent SKA Image Class Loader and Writer
+ * 25/Sep/2007 Davide Pizzolato - www.xdp.it
+ * CxImage version 7.0.0 31/Dec/2010
+ */
+
+#include "ximaska.h"
+
+#if CXIMAGE_SUPPORT_SKA
+
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_SUPPORT_DECODE
+////////////////////////////////////////////////////////////////////////////////
+bool CxImageSKA::Decode(CxFile *hFile)
+{
+ if (hFile==NULL)
+ return false;
+
+ // read the header
+ SKAHEADER ska_header;
+ hFile->Read(&ska_header,sizeof(SKAHEADER),1);
+
+ ska_header.Width = m_ntohs(ska_header.Width);
+ ska_header.Height = m_ntohs(ska_header.Height);
+ ska_header.dwUnknown = m_ntohl(ska_header.dwUnknown);
+
+ // check header
+ if (ska_header.dwUnknown != 0x01000000 ||
+ ska_header.Width > 0x7FFF || ska_header.Height > 0x7FFF ||
+ ska_header.BppExp != 3)
+ return false;
+
+ if (info.nEscape == -1){
+ head.biWidth = ska_header.Width ;
+ head.biHeight= ska_header.Height;
+ info.dwType = CXIMAGE_FORMAT_SKA;
+ return true;
+ }
+
+ int32_t bpp = 1<<ska_header.BppExp;
+
+ Create(ska_header.Width,ska_header.Height,bpp,CXIMAGE_FORMAT_SKA);
+ if (!IsValid())
+ return false;
+
+ // read the palette
+ int32_t nColors = 1<<bpp;
+ rgb_color* ppal = (rgb_color*)malloc(nColors*sizeof(rgb_color));
+ if (!ppal) return false;
+ hFile->Read(ppal,nColors*sizeof(rgb_color),1);
+ SetPalette(ppal,nColors);
+ free(ppal);
+
+ //read the image
+ hFile->Read(GetBits(),ska_header.Width*ska_header.Height,1);
+
+ //reorder rows
+ if (GetEffWidth() != ska_header.Width){
+ uint8_t *src,*dst;
+ src = GetBits() + ska_header.Width*(ska_header.Height-1);
+ dst = GetBits(ska_header.Height-1);
+ for(int32_t y=0;y<ska_header.Height;y++){
+ memcpy(dst,src,ska_header.Width);
+ src -= ska_header.Width;
+ dst -= GetEffWidth();
+ }
+ }
+
+ Flip();
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+#endif //CXIMAGE_SUPPORT_DECODE
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_SUPPORT_ENCODE
+////////////////////////////////////////////////////////////////////////////////
+bool CxImageSKA::Encode(CxFile * hFile)
+{
+ if (EncodeSafeCheck(hFile)) return false;
+
+ if(head.biBitCount > 8) {
+ strcpy(info.szLastError,"SKA Images must be 8 bit or less");
+ return false;
+ }
+
+ SKAHEADER ska_header;
+
+ ska_header.Width = (uint16_t)GetWidth();
+ ska_header.Height = (uint16_t)GetHeight();
+ ska_header.BppExp = 3;
+ ska_header.dwUnknown = 0x01000000;
+
+ ska_header.Width = m_ntohs(ska_header.Width);
+ ska_header.Height = m_ntohs(ska_header.Height);
+ ska_header.dwUnknown = m_ntohl(ska_header.dwUnknown);
+
+ hFile->Write(&ska_header,sizeof(SKAHEADER),1);
+
+ ska_header.Width = m_ntohs(ska_header.Width);
+ ska_header.Height = m_ntohs(ska_header.Height);
+ ska_header.dwUnknown = m_ntohl(ska_header.dwUnknown);
+
+ if (head.biBitCount<8) IncreaseBpp(8);
+
+ rgb_color pal[256];
+ for(int32_t idx=0; idx<256; idx++){
+ GetPaletteColor(idx,&(pal[idx].r),&(pal[idx].g),&(pal[idx].b));
+ }
+
+ hFile->Write(pal,256*sizeof(rgb_color),1);
+
+ uint8_t* src = GetBits(ska_header.Height-1);
+ for(int32_t y=0;y<ska_header.Height;y++){
+ hFile->Write(src,ska_header.Width,1);
+ src -= GetEffWidth();
+ }
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+#endif // CXIMAGE_SUPPORT_ENCODE
+////////////////////////////////////////////////////////////////////////////////
+#endif // CXIMAGE_SUPPORT_SKA
+
diff --git a/smelt/sdl/CxImage/ximaska.h b/smelt/sdl/CxImage/ximaska.h new file mode 100644 index 0000000..ad3f598 --- /dev/null +++ b/smelt/sdl/CxImage/ximaska.h @@ -0,0 +1,44 @@ +/*
+ * File: ximaska.h
+ * Purpose: SKA Image Class Loader and Writer
+ */
+/* ==========================================================
+ * CxImageSKA (c) 25/Sep/2007 Davide Pizzolato - www.xdp.it
+ * For conditions of distribution and use, see copyright notice in ximage.h
+ * ==========================================================
+ */
+#if !defined(__ximaSKA_h)
+#define __ximaSKA_h
+
+#include "ximage.h"
+
+#if CXIMAGE_SUPPORT_SKA
+
+class CxImageSKA: public CxImage
+{
+#pragma pack(1)
+ typedef struct tagSkaHeader {
+ uint16_t Width;
+ uint16_t Height;
+ uint8_t BppExp;
+ uint32_t dwUnknown;
+} SKAHEADER;
+#pragma pack()
+
+public:
+ CxImageSKA(): CxImage(CXIMAGE_FORMAT_SKA) {}
+
+// bool Load(const char * imageFileName){ return CxImage::Load(imageFileName,CXIMAGE_FORMAT_ICO);}
+// bool Save(const char * imageFileName){ return CxImage::Save(imageFileName,CXIMAGE_FORMAT_ICO);}
+ bool Decode(CxFile * hFile);
+ bool Decode(FILE *hFile) { CxIOFile file(hFile); return Decode(&file); }
+
+#if CXIMAGE_SUPPORT_ENCODE
+ bool Encode(CxFile * hFile);
+ bool Encode(FILE *hFile) { CxIOFile file(hFile); return Encode(&file); }
+#endif // CXIMAGE_SUPPORT_ENCODE
+};
+
+#endif
+
+#endif
diff --git a/smelt/sdl/CxImage/ximatga.cpp b/smelt/sdl/CxImage/ximatga.cpp new file mode 100644 index 0000000..f1a762a --- /dev/null +++ b/smelt/sdl/CxImage/ximatga.cpp @@ -0,0 +1,320 @@ +/*
+ * File: ximatga.cpp
+ * Purpose: Platform Independent TGA Image Class Loader and Writer
+ * 05/Jan/2001 Davide Pizzolato - www.xdp.it
+ * CxImage version 7.0.0 31/Dec/2010
+ */
+
+#include "ximatga.h"
+
+#if CXIMAGE_SUPPORT_TGA
+
+#include "ximaiter.h"
+
+// Definitions for image types.
+#define TGA_Null 0
+#define TGA_Map 1
+#define TGA_RGB 2
+#define TGA_Mono 3
+#define TGA_RLEMap 9
+#define TGA_RLERGB 10
+#define TGA_RLEMono 11
+#define TGA_CompMap 32
+#define TGA_CompMap4 33
+
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_SUPPORT_DECODE
+////////////////////////////////////////////////////////////////////////////////
+bool CxImageTGA::Decode(CxFile *hFile)
+{
+ if (hFile == NULL) return false;
+
+ TGAHEADER tgaHead;
+
+ cx_try
+ {
+ if (hFile->Read(&tgaHead,sizeof(tgaHead),1)==0)
+ cx_throw("Not a TGA");
+
+ tga_toh(&tgaHead);
+
+ bool bCompressed;
+ switch (tgaHead.ImageType){
+ case TGA_Map:
+ case TGA_RGB:
+ case TGA_Mono:
+ bCompressed = false;
+ break;
+ case TGA_RLEMap:
+ case TGA_RLERGB:
+ case TGA_RLEMono:
+ bCompressed = true;
+ break;
+ default:
+ cx_throw("Unknown TGA image type");
+ }
+
+ if (tgaHead.ImageWidth==0 || tgaHead.ImageHeight==0 || tgaHead.PixelDepth==0 || tgaHead.CmapLength>256)
+ cx_throw("bad TGA header");
+
+ if (tgaHead.PixelDepth!=8 && tgaHead.PixelDepth!=15 && tgaHead.PixelDepth!=16 && tgaHead.PixelDepth!=24 && tgaHead.PixelDepth!=32)
+ cx_throw("bad TGA header");
+
+ if (info.nEscape == -1){
+ head.biWidth = tgaHead.ImageWidth ;
+ head.biHeight= tgaHead.ImageHeight;
+ info.dwType = CXIMAGE_FORMAT_TGA;
+ return true;
+ }
+
+ if (tgaHead.IdLength>0) hFile->Seek(tgaHead.IdLength,SEEK_CUR); //skip descriptor
+
+ Create(tgaHead.ImageWidth, tgaHead.ImageHeight, tgaHead.PixelDepth, CXIMAGE_FORMAT_TGA);
+#if CXIMAGE_SUPPORT_ALPHA // <vho>
+ if (tgaHead.PixelDepth==32) AlphaCreate(); // Image has alpha channel
+#endif //CXIMAGE_SUPPORT_ALPHA
+
+ if (!IsValid()) cx_throw("TGA Create failed");
+
+ if (info.nEscape) cx_throw("Cancelled"); // <vho> - cancel decoding
+
+ if (tgaHead.CmapType != 0){ // read the palette
+ rgb_color pal[256];
+ hFile->Read(pal,tgaHead.CmapLength*sizeof(rgb_color), 1);
+ for (int32_t i=0;i<tgaHead.CmapLength; i++) SetPaletteColor((uint8_t)i,pal[i].b,pal[i].g,pal[i].r);
+ }
+
+ if (tgaHead.ImageType == TGA_Mono || tgaHead.ImageType == TGA_RLEMono)
+ SetGrayPalette();
+
+ // Bits 4 & 5 of the Image Descriptor byte control the ordering of the pixels.
+ bool bXReversed = ((tgaHead.ImagDesc & 16) == 16);
+ bool bYReversed = ((tgaHead.ImagDesc & 32) == 32);
+
+ CImageIterator iter(this);
+ uint8_t rleLeftover = 255; //for images with illegal packet boundary
+ uint8_t* pDest;
+ for (int32_t y=0; y < tgaHead.ImageHeight; y++){
+
+ if (info.nEscape) cx_throw("Cancelled"); // <vho> - cancel decoding
+
+ if (hFile == NULL || hFile->Eof()) cx_throw("corrupted TGA");
+
+ if (bYReversed) pDest = iter.GetRow(tgaHead.ImageHeight-y-1);
+ else pDest = iter.GetRow(y);
+
+ if (bCompressed) rleLeftover = ExpandCompressedLine(pDest,&tgaHead,hFile,tgaHead.ImageWidth,y,rleLeftover);
+ else ExpandUncompressedLine (pDest,&tgaHead,hFile,tgaHead.ImageWidth,y,0);
+ }
+
+ if (bXReversed) Mirror();
+
+#if CXIMAGE_SUPPORT_ALPHA
+ if (bYReversed && tgaHead.PixelDepth==32) AlphaFlip(); //<lioucr>
+#endif //CXIMAGE_SUPPORT_ALPHA
+
+ } cx_catch {
+ if (strcmp(message,"")) strncpy(info.szLastError,message,255);
+ return false;
+ }
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+#endif //CXIMAGE_SUPPORT_DECODE
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_SUPPORT_ENCODE
+////////////////////////////////////////////////////////////////////////////////
+bool CxImageTGA::Encode(CxFile * hFile)
+{
+ if (EncodeSafeCheck(hFile)) return false;
+
+ if (head.biBitCount<8){
+ strcpy(info.szLastError,"Bit depth must be 8 or 24");
+ return false;
+ }
+
+ TGAHEADER tgaHead;
+
+ tgaHead.IdLength = 0; // Image ID Field Length
+ tgaHead.CmapType = GetPalette()!=0; // Color Map Type
+ tgaHead.ImageType = (head.biBitCount == 8) ? (uint8_t)TGA_Map : (uint8_t)TGA_RGB; // Image Type
+
+ tgaHead.CmapIndex=0; // First Entry Index
+ tgaHead.CmapLength=(head.biBitCount == 8) ? 256 : 0; // Color Map Length
+ tgaHead.CmapEntrySize=(head.biBitCount == 8) ? (uint8_t)24 : (uint8_t)0; // Color Map Entry Size
+
+ tgaHead.X_Origin=0; // X-origin of Image
+ tgaHead.Y_Origin=0; // Y-origin of Image
+ tgaHead.ImageWidth=(uint16_t)head.biWidth; // Image Width
+ tgaHead.ImageHeight=(uint16_t)head.biHeight; // Image Height
+ tgaHead.PixelDepth=(uint8_t)head.biBitCount; // Pixel Depth
+ tgaHead.ImagDesc=0; // Image Descriptor
+
+ if (pAlpha && head.biBitCount==24) tgaHead.PixelDepth=32;
+
+ tga_toh(&tgaHead);
+ hFile->Write(&tgaHead,sizeof(TGAHEADER),1);
+ tga_toh(&tgaHead);
+
+ if (head.biBitCount==8){
+ rgb_color pal[256];
+ RGBQUAD* ppal = GetPalette();
+ for (int32_t i=0;i<256; i++){
+ pal[i].r = ppal[i].rgbBlue;
+ pal[i].g = ppal[i].rgbGreen;
+ pal[i].b = ppal[i].rgbRed;
+ }
+ hFile->Write(&pal,256*sizeof(rgb_color),1);
+ }
+
+ CImageIterator iter(this);
+ uint8_t* pDest;
+ if (pAlpha==0 || head.biBitCount==8){
+ for (int32_t y=0; y < tgaHead.ImageHeight; y++){
+ pDest = iter.GetRow(y);
+ hFile->Write(pDest,tgaHead.ImageWidth * (head.biBitCount >> 3),1);
+ }
+ } else {
+ pDest = (uint8_t*)malloc(4*tgaHead.ImageWidth);
+ RGBQUAD c;
+ for (int32_t y=0; y < tgaHead.ImageHeight; y++){
+ for(int32_t x=0, x4=0;x<tgaHead.ImageWidth;x++, x4+=4){
+ c = BlindGetPixelColor(x,y);
+ pDest[x4+0]=c.rgbBlue;
+ pDest[x4+1]=c.rgbGreen;
+ pDest[x4+2]=c.rgbRed;
+#if CXIMAGE_SUPPORT_ALPHA // <vho>
+ pDest[x4+3]=AlphaGet(x,y);
+#else
+ pDest[x4+3]=0;
+#endif //CXIMAGE_SUPPORT_ALPHA
+ }
+ hFile->Write(pDest,4*tgaHead.ImageWidth,1);
+ }
+ free(pDest);
+ }
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+#endif // CXIMAGE_SUPPORT_ENCODE
+////////////////////////////////////////////////////////////////////////////////
+uint8_t CxImageTGA::ExpandCompressedLine(uint8_t* pDest,TGAHEADER* ptgaHead,CxFile *hFile,int32_t width, int32_t y, uint8_t rleLeftover)
+{
+ uint8_t rle;
+ int32_t filePos=0;
+ for (int32_t x=0; x<width; ){
+ if (rleLeftover != 255){
+ rle = rleLeftover;
+ rleLeftover = 255;
+ } else {
+ hFile->Read(&rle,1,1);
+ }
+ if (rle & 128) { // RLE-Encoded packet
+ rle -= 127; // Calculate real repeat count.
+ if ((x+rle)>width){
+ rleLeftover = (uint8_t)(128 + (rle - (width - x) - 1));
+ filePos = hFile->Tell();
+ rle = (uint8_t)(width - x);
+ }
+ switch (ptgaHead->PixelDepth)
+ {
+ case 32: {
+ RGBQUAD color;
+ hFile->Read(&color,4,1);
+ for (int32_t ix = 0; ix < rle; ix++){
+ memcpy(&pDest[3*ix],&color,3);
+#if CXIMAGE_SUPPORT_ALPHA // <vho>
+ AlphaSet(ix+x,y,color.rgbReserved);
+#endif //CXIMAGE_SUPPORT_ALPHA
+ }
+ break;
+ }
+ case 24: {
+ rgb_color triple;
+ hFile->Read(&triple,3,1);
+ for (int32_t ix = 0; ix < rle; ix++) memcpy(&pDest[3*ix],&triple,3);
+ break;
+ }
+ case 15:
+ case 16: {
+ uint16_t pixel;
+ hFile->Read(&pixel,2,1);
+ rgb_color triple;
+ triple.r = (uint8_t)(( pixel & 0x1F ) * 8); // red
+ triple.g = (uint8_t)(( pixel >> 2 ) & 0x0F8); // green
+ triple.b = (uint8_t)(( pixel >> 7 ) & 0x0F8); // blue
+ for (int32_t ix = 0; ix < rle; ix++){
+ memcpy(&pDest[3*ix],&triple,3);
+ }
+ break;
+ }
+ case 8: {
+ uint8_t pixel;
+ hFile->Read(&pixel,1,1);
+ for (int32_t ix = 0; ix < rle; ix++) pDest[ix] = pixel;
+ }
+ }
+ if (rleLeftover!=255) hFile->Seek(filePos, SEEK_SET);
+ } else { // Raw packet
+ rle += 1; // Calculate real repeat count.
+ if ((x+rle)>width){
+ rleLeftover = (uint8_t)(rle - (width - x) - 1);
+ rle = (uint8_t)(width - x);
+ }
+ ExpandUncompressedLine(pDest,ptgaHead,hFile,rle,y,x);
+ }
+ if (head.biBitCount == 24) pDest += rle*3; else pDest += rle;
+ x += rle;
+ }
+ return rleLeftover;
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImageTGA::ExpandUncompressedLine(uint8_t* pDest,TGAHEADER* ptgaHead,CxFile *hFile,int32_t width, int32_t y, int32_t xoffset)
+{
+ switch (ptgaHead->PixelDepth){
+ case 8:
+ hFile->Read(pDest,width,1);
+ break;
+ case 15:
+ case 16:{
+ uint8_t* dst=pDest;
+ uint16_t pixel;
+ for (int32_t x=0; x<width; x++){
+ hFile->Read(&pixel,2,1);
+ *dst++ = (uint8_t)(( pixel & 0x1F ) * 8); // blue
+ *dst++ = (uint8_t)(( pixel >> 2 ) & 0x0F8); // green
+ *dst++ = (uint8_t)(( pixel >> 7 ) & 0x0F8); // red
+ }
+ break;
+ }
+ case 24:
+ hFile->Read(pDest,3*width,1);
+ break;
+ case 32:{
+ uint8_t* dst=pDest;
+ for (int32_t x=0; x<width; x++){
+ RGBQUAD pixel;
+ hFile->Read(&pixel,4,1);
+ *dst++ = pixel.rgbBlue;
+ *dst++ = pixel.rgbGreen;
+ *dst++ = pixel.rgbRed;
+#if CXIMAGE_SUPPORT_ALPHA // <vho>
+ AlphaSet(x+xoffset,y,pixel.rgbReserved); //alpha
+#endif //CXIMAGE_SUPPORT_ALPHA
+ }
+ break;
+ }
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImageTGA::tga_toh(TGAHEADER* p)
+{
+ p->CmapIndex = m_ntohs(p->CmapIndex);
+ p->CmapLength = m_ntohs(p->CmapLength);
+ p->X_Origin = m_ntohs(p->X_Origin);
+ p->Y_Origin = m_ntohs(p->Y_Origin);
+ p->ImageWidth = m_ntohs(p->ImageWidth);
+ p->ImageHeight = m_ntohs(p->ImageHeight);
+}
+////////////////////////////////////////////////////////////////////////////////
+#endif // CXIMAGE_SUPPORT_TGA
diff --git a/smelt/sdl/CxImage/ximatga.h b/smelt/sdl/CxImage/ximatga.h new file mode 100644 index 0000000..3cbc36a --- /dev/null +++ b/smelt/sdl/CxImage/ximatga.h @@ -0,0 +1,61 @@ +/*
+ * File: ximatga.h
+ * Purpose: TARGA Image Class Loader and Writer
+ */
+/* ==========================================================
+ * CxImageTGA (c) 05/Jan/2002 Davide Pizzolato - www.xdp.it
+ * For conditions of distribution and use, see copyright notice in ximage.h
+ *
+ * Parts of the code come from Paintlib : Copyright (c) 1996-1998 Ulrich von Zadow
+ * ==========================================================
+ */
+#if !defined(__ximaTGA_h)
+#define __ximaTGA_h
+
+#include "ximage.h"
+
+#if CXIMAGE_SUPPORT_TGA
+
+class CxImageTGA: public CxImage
+{
+#pragma pack(1)
+typedef struct tagTgaHeader
+{
+ uint8_t IdLength; // Image ID Field Length
+ uint8_t CmapType; // Color Map Type
+ uint8_t ImageType; // Image Type
+
+ uint16_t CmapIndex; // First Entry Index
+ uint16_t CmapLength; // Color Map Length
+ uint8_t CmapEntrySize; // Color Map Entry Size
+
+ uint16_t X_Origin; // X-origin of Image
+ uint16_t Y_Origin; // Y-origin of Image
+ uint16_t ImageWidth; // Image Width
+ uint16_t ImageHeight; // Image Height
+ uint8_t PixelDepth; // Pixel Depth
+ uint8_t ImagDesc; // Image Descriptor
+} TGAHEADER;
+#pragma pack()
+
+public:
+ CxImageTGA(): CxImage(CXIMAGE_FORMAT_TGA) {}
+
+// bool Load(const TCHAR * imageFileName){ return CxImage::Load(imageFileName,CXIMAGE_FORMAT_TGA);}
+// bool Save(const TCHAR * imageFileName){ return CxImage::Save(imageFileName,CXIMAGE_FORMAT_TGA);}
+ bool Decode(CxFile * hFile);
+ bool Decode(FILE *hFile) { CxIOFile file(hFile); return Decode(&file); }
+
+#if CXIMAGE_SUPPORT_ENCODE
+ bool Encode(CxFile * hFile);
+ bool Encode(FILE *hFile) { CxIOFile file(hFile); return Encode(&file); }
+#endif // CXIMAGE_SUPPORT_ENCODE
+protected:
+ uint8_t ExpandCompressedLine(uint8_t* pDest,TGAHEADER* ptgaHead,CxFile *hFile,int32_t width, int32_t y, uint8_t rleLeftover);
+ void ExpandUncompressedLine(uint8_t* pDest,TGAHEADER* ptgaHead,CxFile *hFile,int32_t width, int32_t y, int32_t xoffset);
+ void tga_toh(TGAHEADER* p);
+};
+
+#endif
+
+#endif
diff --git a/smelt/sdl/CxImage/ximath.cpp b/smelt/sdl/CxImage/ximath.cpp new file mode 100644 index 0000000..0175184 --- /dev/null +++ b/smelt/sdl/CxImage/ximath.cpp @@ -0,0 +1,97 @@ +#include "ximage.h"
+#include "ximath.h"
+#include <math.h>
+
+//this module should contain some classes for geometrical transformations
+//usable with selections, etc... once it's done, that is. :)
+
+CxPoint2::CxPoint2()
+{
+ x=y=0.0f;
+}
+
+CxPoint2::CxPoint2(float const x_, float const y_)
+{
+ x=x_;
+ y=y_;
+}
+
+CxPoint2::CxPoint2(CxPoint2 const &p)
+{
+ x=p.x;
+ y=p.y;
+}
+
+float CxPoint2::Distance(CxPoint2 const p2)
+{
+ return (float)sqrt((x-p2.x)*(x-p2.x)+(y-p2.y)*(y-p2.y));
+}
+
+float CxPoint2::Distance(float const x_, float const y_)
+{
+ return (float)sqrt((x-x_)*(x-x_)+(y-y_)*(y-y_));
+}
+
+CxRect2::CxRect2()
+{
+}
+
+CxRect2::CxRect2(float const x1_, float const y1_, float const x2_, float const y2_)
+{
+ botLeft.x=x1_;
+ botLeft.y=y1_;
+ topRight.x=x2_;
+ topRight.y=y2_;
+}
+
+CxRect2::CxRect2(CxRect2 const &p)
+{
+ botLeft=p.botLeft;
+ topRight=p.topRight;
+}
+
+float CxRect2::Surface() const
+/*
+ * Returns the surface of rectangle.
+ */
+{
+ return (topRight.x-botLeft.x)*(topRight.y-botLeft.y);
+}
+
+CxRect2 CxRect2::CrossSection(CxRect2 const &r2) const
+/*
+ * Returns crossection with another rectangle.
+ */
+{
+ CxRect2 cs;
+ cs.botLeft.x=max(botLeft.x, r2.botLeft.x);
+ cs.botLeft.y=max(botLeft.y, r2.botLeft.y);
+ cs.topRight.x=min(topRight.x, r2.topRight.x);
+ cs.topRight.y=min(topRight.y, r2.topRight.y);
+ if (cs.botLeft.x<=cs.topRight.x && cs.botLeft.y<=cs.topRight.y) {
+ return cs;
+ } else {
+ return CxRect2(0,0,0,0);
+ }//if
+}
+
+CxPoint2 CxRect2::Center() const
+/*
+ * Returns the center point of rectangle.
+ */
+{
+ return CxPoint2((topRight.x+botLeft.x)/2.0f, (topRight.y+botLeft.y)/2.0f);
+}
+
+float CxRect2::Width() const
+//returns rectangle width
+{
+ return topRight.x-botLeft.x;
+}
+
+float CxRect2::Height() const
+//returns rectangle height
+{
+ return topRight.y-botLeft.y;
+}
+
diff --git a/smelt/sdl/CxImage/ximath.h b/smelt/sdl/CxImage/ximath.h new file mode 100644 index 0000000..014c14b --- /dev/null +++ b/smelt/sdl/CxImage/ximath.h @@ -0,0 +1,39 @@ +#if !defined(__ximath_h)
+#define __ximath_h
+
+#include "ximadef.h"
+
+//***bd*** simple floating point point
+class DLL_EXP CxPoint2
+{
+public:
+ CxPoint2();
+ CxPoint2(float const x_, float const y_);
+ CxPoint2(CxPoint2 const &p);
+
+ float Distance(CxPoint2 const p2);
+ float Distance(float const x_, float const y_);
+
+ float x,y;
+};
+
+//and simple rectangle
+class DLL_EXP CxRect2
+{
+public:
+ CxRect2();
+ CxRect2(float const x1_, float const y1_, float const x2_, float const y2_);
+ CxRect2(CxPoint2 const &bl, CxPoint2 const &tr);
+ CxRect2(CxRect2 const &p);
+
+ float Surface() const;
+ CxRect2 CrossSection(CxRect2 const &r2) const;
+ CxPoint2 Center() const;
+ float Width() const;
+ float Height() const;
+
+ CxPoint2 botLeft;
+ CxPoint2 topRight;
+};
+
+#endif
diff --git a/smelt/sdl/CxImage/ximatif.cpp b/smelt/sdl/CxImage/ximatif.cpp new file mode 100644 index 0000000..7675361 --- /dev/null +++ b/smelt/sdl/CxImage/ximatif.cpp @@ -0,0 +1,982 @@ +/*
+ * File: ximatif.cpp
+ * Purpose: Platform Independent TIFF Image Class Loader and Writer
+ * 07/Aug/2001 Davide Pizzolato - www.xdp.it
+ * CxImage version 7.0.0 31/Dec/2010
+ */
+
+#include "ximatif.h"
+
+#if CXIMAGE_SUPPORT_TIF
+
+#define FIX_16BPP_DARKIMG // + VK: if uncomment, dark 16bpp images are fixed
+
+#include "../tiff/tiffio.h"
+
+#define CVT(x) (((x) * 255L) / ((1L<<16)-1))
+#define SCALE(x) (((x)*((1L<<16)-1))/255)
+#define CalculateLine(width,bitdepth) (((width * bitdepth) + 7) / 8)
+#define CalculatePitch(line) (line + 3 & ~3)
+
+extern "C" TIFF* _TIFFOpenEx(CxFile* stream, const char* mode);
+
+////////////////////////////////////////////////////////////////////////////////
+CxImageTIF::~CxImageTIF()
+{
+ if (m_tif2) TIFFClose(m_tif2);
+}
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_SUPPORT_DECODE
+////////////////////////////////////////////////////////////////////////////////
+bool CxImageTIF::Decode(CxFile * hFile)
+{
+ //Comment this line if you need more information on errors
+ // TIFFSetErrorHandler(NULL); //<Patrick Hoffmann>
+
+ //Open file and fill the TIFF structure
+ // m_tif = TIFFOpen(imageFileName,"rb");
+ TIFF* m_tif = _TIFFOpenEx(hFile, "rb");
+
+ uint32 height=0;
+ uint32 width=0;
+ uint16 bitspersample=1;
+ uint16 samplesperpixel=1;
+ uint32 rowsperstrip=(uint32_t)-1;
+ uint16 photometric=0;
+ uint16 compression=1;
+ uint16 orientation=ORIENTATION_TOPLEFT; //<vho>
+ uint16 res_unit; //<Trifon>
+ uint32 x, y;
+ float resolution, offset;
+ BOOL isRGB;
+ uint8_t *bits; //pointer to source data
+ uint8_t *bits2; //pointer to destination data
+
+ cx_try
+ {
+ //check if it's a tiff file
+ if (!m_tif)
+ cx_throw("Error encountered while opening TIFF file");
+
+ // <Robert Abram> - 12/2002 : get NumFrames directly, instead of looping
+ // info.nNumFrames=0;
+ // while(TIFFSetDirectory(m_tif,(uint16)info.nNumFrames)) info.nNumFrames++;
+ info.nNumFrames = TIFFNumberOfDirectories(m_tif);
+
+ if (!TIFFSetDirectory(m_tif, (uint16)info.nFrame))
+ cx_throw("Error: page not present in TIFF file");
+
+ //get image info
+ TIFFGetField(m_tif, TIFFTAG_IMAGEWIDTH, &width);
+ TIFFGetField(m_tif, TIFFTAG_IMAGELENGTH, &height);
+ TIFFGetField(m_tif, TIFFTAG_SAMPLESPERPIXEL, &samplesperpixel);
+ TIFFGetField(m_tif, TIFFTAG_BITSPERSAMPLE, &bitspersample);
+ TIFFGetField(m_tif, TIFFTAG_ROWSPERSTRIP, &rowsperstrip);
+ TIFFGetField(m_tif, TIFFTAG_PHOTOMETRIC, &photometric);
+ TIFFGetField(m_tif, TIFFTAG_ORIENTATION, &orientation);
+
+ if (info.nEscape == -1) {
+ // Return output dimensions only
+ head.biWidth = width;
+ head.biHeight = height;
+ info.dwType = CXIMAGE_FORMAT_TIF;
+ cx_throw("output dimensions returned");
+ }
+
+ TIFFGetFieldDefaulted(m_tif, TIFFTAG_RESOLUTIONUNIT, &res_unit);
+ if (TIFFGetField(m_tif, TIFFTAG_XRESOLUTION, &resolution))
+ {
+ if (res_unit == RESUNIT_CENTIMETER) resolution = (float)(resolution*2.54f + 0.5f);
+ SetXDPI((int32_t)resolution);
+ }
+ if (TIFFGetField(m_tif, TIFFTAG_YRESOLUTION, &resolution))
+ {
+ if (res_unit == RESUNIT_CENTIMETER) resolution = (float)(resolution*2.54f + 0.5f);
+ SetYDPI((int32_t)resolution);
+ }
+
+ if (TIFFGetField(m_tif, TIFFTAG_XPOSITION, &offset)) info.xOffset = (int32_t)offset;
+ if (TIFFGetField(m_tif, TIFFTAG_YPOSITION, &offset)) info.yOffset = (int32_t)offset;
+
+ head.biClrUsed=0;
+ info.nBkgndIndex =-1;
+
+ if (rowsperstrip>height){
+ rowsperstrip=height;
+ TIFFSetField(m_tif, TIFFTAG_ROWSPERSTRIP, rowsperstrip);
+ }
+
+ isRGB = /*(bitspersample >= 8) && (VK: it is possible so for RGB to have < 8 bpp!)*/
+ (photometric == PHOTOMETRIC_RGB) ||
+ (photometric == PHOTOMETRIC_YCBCR) ||
+ (photometric == PHOTOMETRIC_SEPARATED) ||
+ (photometric == PHOTOMETRIC_LOGL) ||
+ (photometric == PHOTOMETRIC_LOGLUV);
+
+ if (isRGB){
+ head.biBitCount=24;
+ }else{
+ if ((photometric==PHOTOMETRIC_MINISBLACK)||(photometric==PHOTOMETRIC_MINISWHITE)||(photometric==PHOTOMETRIC_PALETTE)){
+ if (bitspersample == 1){
+ head.biBitCount=1; //B&W image
+ head.biClrUsed =2;
+ } else if (bitspersample == 4) {
+ head.biBitCount=4; //16 colors gray scale
+ head.biClrUsed =16;
+ } else {
+ head.biBitCount=8; //gray scale
+ head.biClrUsed =256;
+ }
+ } else if (bitspersample == 4) {
+ head.biBitCount=4; // 16 colors
+ head.biClrUsed=16;
+ } else {
+ head.biBitCount=8; //256 colors
+ head.biClrUsed=256;
+ }
+
+ if ((bitspersample > 8) && (photometric==PHOTOMETRIC_PALETTE)) // + VK + (BIG palette! => convert to RGB)
+ { head.biBitCount=24;
+ head.biClrUsed =0;
+ }
+ }
+
+ if (info.nEscape) cx_throw("Cancelled"); // <vho> - cancel decoding
+
+ Create(width,height,head.biBitCount,CXIMAGE_FORMAT_TIF); //image creation
+ if (!pDib) cx_throw("CxImageTIF can't create image");
+
+#if CXIMAGE_SUPPORT_ALPHA
+ if (samplesperpixel==4) AlphaCreate(); //add alpha support for 32bpp tiffs
+ if (samplesperpixel==2 && bitspersample==8) AlphaCreate(); //add alpha support for 8bpp + alpha
+#endif //CXIMAGE_SUPPORT_ALPHA
+
+ TIFFGetField(m_tif, TIFFTAG_COMPRESSION, &compression);
+ SetCodecOption(compression); // <DPR> save original compression type
+
+ if (isRGB) {
+ // Read the whole image into one big RGBA buffer using
+ // the traditional TIFFReadRGBAImage() API that we trust.
+ uint32* raster; // retrieve RGBA image
+ uint32 *row;
+
+ raster = (uint32*)_TIFFmalloc(width * height * sizeof (uint32));
+ if (raster == NULL) cx_throw("No space for raster buffer");
+
+ // Read the image in one chunk into an RGBA array
+ if(!TIFFReadRGBAImage(m_tif, width, height, raster, 1)) {
+ _TIFFfree(raster);
+ cx_throw("Corrupted TIFF file!");
+ }
+
+ // read the raster lines and save them in the DIB
+ // with RGB mode, we have to change the order of the 3 samples RGB
+ row = &raster[0];
+ bits2 = info.pImage;
+ for (y = 0; y < height; y++) {
+
+ if (info.nEscape){ // <vho> - cancel decoding
+ _TIFFfree(raster);
+ cx_throw("Cancelled");
+ }
+
+ bits = bits2;
+ for (x = 0; x < width; x++) {
+ *bits++ = (uint8_t)TIFFGetB(row[x]);
+ *bits++ = (uint8_t)TIFFGetG(row[x]);
+ *bits++ = (uint8_t)TIFFGetR(row[x]);
+#if CXIMAGE_SUPPORT_ALPHA
+ if (samplesperpixel==4) AlphaSet(x,y,(uint8_t)TIFFGetA(row[x]));
+#endif //CXIMAGE_SUPPORT_ALPHA
+ }
+ row += width;
+ bits2 += info.dwEffWidth;
+ }
+ _TIFFfree(raster);
+ } else {
+ int32_t BIG_palette = (bitspersample > 8) && // + VK
+ (photometric==PHOTOMETRIC_PALETTE);
+ if (BIG_palette && (bitspersample > 24)) // + VK
+ cx_throw("Too big palette to handle"); // + VK
+
+ RGBQUAD *pal;
+ pal=(RGBQUAD*)calloc(BIG_palette ? 1<<bitspersample : 256,sizeof(RGBQUAD));
+ // ! VK: it coasts nothing but more correct to use 256 as temp palette storage
+ // ! VK: but for case of BIG palette it just copied
+ if (pal==NULL) cx_throw("Unable to allocate TIFF palette");
+
+ int32_t bpp = bitspersample <= 8 ? bitspersample : 8; // + VK (to use instead of bitspersample for case of > 8)
+
+ // set up the colormap based on photometric
+ switch(photometric) {
+ case PHOTOMETRIC_MINISBLACK: // bitmap and greyscale image types
+ case PHOTOMETRIC_MINISWHITE:
+ if (bitspersample == 1) { // Monochrome image
+ if (photometric == PHOTOMETRIC_MINISBLACK) {
+ pal[1].rgbRed = pal[1].rgbGreen = pal[1].rgbBlue = 255;
+ } else {
+ pal[0].rgbRed = pal[0].rgbGreen = pal[0].rgbBlue = 255;
+ }
+ } else { // need to build the scale for greyscale images
+ if (photometric == PHOTOMETRIC_MINISBLACK) {
+ for (int32_t i=0; i<(1<<bpp); i++){
+ pal[i].rgbRed = pal[i].rgbGreen = pal[i].rgbBlue = (uint8_t)(i*(255/((1<<bpp)-1)));
+ }
+ } else {
+ for (int32_t i=0; i<(1<<bpp); i++){
+ pal[i].rgbRed = pal[i].rgbGreen = pal[i].rgbBlue = (uint8_t)(255-i*(255/((1<<bpp)-1)));
+ }
+ }
+ }
+ break;
+ case PHOTOMETRIC_PALETTE: // color map indexed
+ uint16 *red;
+ uint16 *green;
+ uint16 *blue;
+ TIFFGetField(m_tif, TIFFTAG_COLORMAP, &red, &green, &blue);
+
+ // Is the palette 16 or 8 bits ?
+ BOOL Palette16Bits = /*FALSE*/ BIG_palette;
+ if (!BIG_palette) {
+ int32_t n= 1<<bpp;
+ while (n-- > 0) {
+ if (red[n] >= 256 || green[n] >= 256 || blue[n] >= 256) {
+ Palette16Bits=TRUE;
+ break;
+ }
+ }
+ }
+
+ // load the palette in the DIB
+ for (int32_t i = (1 << ( BIG_palette ? bitspersample : bpp )) - 1; i >= 0; i--) {
+ if (Palette16Bits) {
+ pal[i].rgbRed =(uint8_t) CVT(red[i]);
+ pal[i].rgbGreen = (uint8_t) CVT(green[i]);
+ pal[i].rgbBlue = (uint8_t) CVT(blue[i]);
+ } else {
+ pal[i].rgbRed = (uint8_t) red[i];
+ pal[i].rgbGreen = (uint8_t) green[i];
+ pal[i].rgbBlue = (uint8_t) blue[i];
+ }
+ }
+ break;
+ }
+ if (!BIG_palette) { // + VK (BIG palette is stored until image is ready)
+ SetPalette(pal,/*head.biClrUsed*/ 1<<bpp); //palette assign // * VK
+ free(pal);
+ pal = NULL;
+ }
+
+ // read the tiff lines and save them in the DIB
+ uint32 nrow;
+ uint32 ys;
+ int32_t line = CalculateLine(width, bitspersample * samplesperpixel);
+
+ int32_t bitsize = TIFFStripSize(m_tif);
+ //verify bitsize: could be wrong if StripByteCounts is missing.
+ if (bitsize>(int32_t)(head.biSizeImage*samplesperpixel))
+ bitsize = head.biSizeImage*samplesperpixel;
+ if (bitsize<(int32_t)(info.dwEffWidth*rowsperstrip))
+ bitsize = info.dwEffWidth*rowsperstrip;
+
+ if ((bitspersample > 8) && (bitspersample != 16)) // + VK (for bitspersample == 9..15,17..32..64
+ bitsize *= (bitspersample + 7)/8;
+
+ int32_t tiled_image = TIFFIsTiled(m_tif);
+ uint32 tw=0, tl=0;
+ uint8_t* tilebuf=NULL;
+ if (tiled_image){
+ TIFFGetField(m_tif, TIFFTAG_TILEWIDTH, &tw);
+ TIFFGetField(m_tif, TIFFTAG_TILELENGTH, &tl);
+ rowsperstrip = tl;
+ bitsize = TIFFTileSize(m_tif) * (int32_t)(1+width/tw);
+ tilebuf = (uint8_t*)malloc(TIFFTileSize(m_tif));
+ }
+
+ bits = (uint8_t*)malloc(bitspersample==16? bitsize*2 : bitsize); // * VK
+ uint8_t * bits16 = NULL; // + VK
+ int32_t line16 = 0; // + VK
+
+ if (!tiled_image && bitspersample==16) { // + VK +
+ line16 = line;
+ line = CalculateLine(width, 8 * samplesperpixel);
+ bits16 = bits;
+ bits = (uint8_t*)malloc(bitsize);
+ }
+
+ if (bits==NULL){
+ if (bits16) free(bits16); // + VK
+ if (pal) free(pal); // + VK
+ if (tilebuf)free(tilebuf); // + VK
+ cx_throw("CxImageTIF can't allocate memory");
+ }
+
+#ifdef FIX_16BPP_DARKIMG // + VK: for each line, store shift count bits used to fix it
+ uint8_t* row_shifts = NULL;
+ if (bits16) row_shifts = (uint8_t*)malloc(height);
+#endif
+
+ for (ys = 0; ys < height; ys += rowsperstrip) {
+
+ if (info.nEscape){ // <vho> - cancel decoding
+ free(bits);
+ cx_throw("Cancelled");
+ }
+
+ nrow = (ys + rowsperstrip > height ? height - ys : rowsperstrip);
+
+ if (tiled_image){
+ uint32 imagew = TIFFScanlineSize(m_tif);
+ uint32 tilew = TIFFTileRowSize(m_tif);
+ int32_t iskew = imagew - tilew;
+ uint8* bufp = (uint8*) bits;
+
+ uint32 colb = 0;
+ for (uint32 col = 0; col < width; col += tw) {
+ if (TIFFReadTile(m_tif, tilebuf, col, ys, 0, 0) < 0){
+ free(tilebuf);
+ free(bits);
+ cx_throw("Corrupted tiled TIFF file!");
+ }
+
+ if (colb + tw > imagew) {
+ uint32 owidth = imagew - colb;
+ uint32 oskew = tilew - owidth;
+ TileToStrip(bufp + colb, tilebuf, nrow, owidth, oskew + iskew, oskew );
+ } else {
+ TileToStrip(bufp + colb, tilebuf, nrow, tilew, iskew, 0);
+ }
+ colb += tilew;
+ }
+
+ } else {
+ if (TIFFReadEncodedStrip(m_tif, TIFFComputeStrip(m_tif, ys, 0),
+ (bits16? bits16 : bits), nrow * (bits16 ? line16 : line)) == -1) { // * VK
+
+#ifdef NOT_IGNORE_CORRUPTED
+ free(bits);
+ if (bits16) free(bits16); // + VK
+ cx_throw("Corrupted TIFF file!");
+#else
+ break;
+#endif
+ }
+ }
+
+ for (y = 0; y < nrow; y++) {
+ int32_t offset=(nrow-y-1)*line;
+ if ((bitspersample==16) && !BIG_palette) { // * VK
+ int32_t offset16 = (nrow-y-1)*line16; // + VK
+ if (bits16) { // + VK +
+#ifdef FIX_16BPP_DARKIMG
+ int32_t the_shift;
+ uint8_t hi_byte, hi_max=0;
+ uint32_t xi;
+ for (xi=0;xi<(uint32)line;xi++) {
+ hi_byte = bits16[xi*2+offset16+1];
+ if(hi_byte>hi_max)
+ hi_max = hi_byte;
+ }
+ the_shift = (hi_max == 0) ? 8 : 0;
+ if (!the_shift)
+ while( ! (hi_max & 0x80) ) {
+ the_shift++;
+ hi_max <<= 1;
+ }
+ row_shifts[height-ys-nrow+y] = the_shift;
+ the_shift = 8 - the_shift;
+ for (xi=0;xi<(uint32)line;xi++)
+ bits[xi+offset]= ((bits16[xi*2+offset16+1]<<8) | bits16[xi*2+offset16]) >> the_shift;
+#else
+ for (uint32_t xi=0;xi<(uint32)line;xi++)
+ bits[xi+offset]=bits16[xi*2+offset16+1];
+#endif
+ } else {
+ for (uint32_t xi=0;xi<width;xi++)
+ bits[xi+offset]=bits[xi*2+offset+1];
+ }
+ }
+ if (samplesperpixel==1) {
+ if (BIG_palette)
+ if (bits16) {
+ int32_t offset16 = (nrow-y-1)*line16; // + VK
+ MoveBitsPal( info.pImage + info.dwEffWidth * (height-ys-nrow+y),
+ bits16 + offset16, width, bitspersample, pal );
+ } else
+ MoveBitsPal( info.pImage + info.dwEffWidth * (height-ys-nrow+y),
+ bits + offset, width, bitspersample, pal );
+ else if ((bitspersample == head.biBitCount) ||
+ (bitspersample == 16)) //simple 8bpp, 4bpp image or 16bpp
+ memcpy(info.pImage+info.dwEffWidth*(height-ys-nrow+y),bits+offset,min((unsigned)line, info.dwEffWidth));
+ else
+ MoveBits( info.pImage + info.dwEffWidth * (height-ys-nrow+y),
+ bits + offset, width, bitspersample );
+ } else if (samplesperpixel==2) { //8bpp image with alpha layer
+ int32_t xi=0;
+ int32_t ii=0;
+ int32_t yi=height-ys-nrow+y;
+#if CXIMAGE_SUPPORT_ALPHA
+ if (!pAlpha) AlphaCreate(); // + VK
+#endif //CXIMAGE_SUPPORT_ALPHA
+ while (ii<line){
+ SetPixelIndex(xi,yi,bits[ii+offset]);
+#if CXIMAGE_SUPPORT_ALPHA
+ AlphaSet(xi,yi,bits[ii+offset+1]);
+#endif //CXIMAGE_SUPPORT_ALPHA
+ ii+=2;
+ xi++;
+ if (xi>=(int32_t)width){
+ yi--;
+ xi=0;
+ }
+ }
+ } else { //photometric==PHOTOMETRIC_CIELAB
+ if (head.biBitCount!=24){ //fix image
+ Create(width,height,24,CXIMAGE_FORMAT_TIF);
+#if CXIMAGE_SUPPORT_ALPHA
+ if (samplesperpixel==4) AlphaCreate();
+#endif //CXIMAGE_SUPPORT_ALPHA
+ }
+
+ int32_t xi=0;
+ uint32 ii=0;
+ int32_t yi=height-ys-nrow+y;
+ RGBQUAD c;
+ int32_t l,a,b,bitsoffset;
+ double p,cx,cy,cz,cr,cg,cb;
+ while (ii</*line*/width){ // * VK
+ bitsoffset = ii*samplesperpixel+offset;
+ l=bits[bitsoffset];
+ a=bits[bitsoffset+1];
+ b=bits[bitsoffset+2];
+ if (a>127) a-=256;
+ if (b>127) b-=256;
+ // lab to xyz
+ p = (l/2.55 + 16) / 116.0;
+ cx = pow( p + a * 0.002, 3);
+ cy = pow( p, 3);
+ cz = pow( p - b * 0.005, 3);
+ // white point
+ cx*=0.95047;
+ //cy*=1.000;
+ cz*=1.0883;
+ // xyz to rgb
+ cr = 3.240479 * cx - 1.537150 * cy - 0.498535 * cz;
+ cg = -0.969256 * cx + 1.875992 * cy + 0.041556 * cz;
+ cb = 0.055648 * cx - 0.204043 * cy + 1.057311 * cz;
+
+ if ( cr > 0.00304 ) cr = 1.055 * pow(cr,0.41667) - 0.055;
+ else cr = 12.92 * cr;
+ if ( cg > 0.00304 ) cg = 1.055 * pow(cg,0.41667) - 0.055;
+ else cg = 12.92 * cg;
+ if ( cb > 0.00304 ) cb = 1.055 * pow(cb,0.41667) - 0.055;
+ else cb = 12.92 * cb;
+
+ c.rgbRed =(uint8_t)max(0,min(255,(int32_t)(cr*255)));
+ c.rgbGreen=(uint8_t)max(0,min(255,(int32_t)(cg*255)));
+ c.rgbBlue =(uint8_t)max(0,min(255,(int32_t)(cb*255)));
+
+ SetPixelColor(xi,yi,c);
+#if CXIMAGE_SUPPORT_ALPHA
+ if (samplesperpixel==4) AlphaSet(xi,yi,bits[bitsoffset+3]);
+#endif //CXIMAGE_SUPPORT_ALPHA
+ ii++;
+ xi++;
+ if (xi>=(int32_t)width){
+ yi--;
+ xi=0;
+ }
+ }
+ }
+ }
+ }
+ free(bits);
+ if (bits16) free(bits16);
+
+#ifdef FIX_16BPP_DARKIMG
+ if (row_shifts && (samplesperpixel == 1) && (bitspersample==16) && !BIG_palette) {
+ // 1. calculate maximum necessary shift
+ int32_t min_row_shift = 8;
+ for( y=0; y<height; y++ ) {
+ if (min_row_shift > row_shifts[y]) min_row_shift = row_shifts[y];
+ }
+ // 2. for rows having less shift value, correct such rows:
+ for( y=0; y<height; y++ ) {
+ if (min_row_shift < row_shifts[y]) {
+ int32_t need_shift = row_shifts[y] - min_row_shift;
+ uint8_t* data = info.pImage + info.dwEffWidth * y;
+ for( x=0; x<width; x++, data++ )
+ *data >>= need_shift;
+ }
+ }
+ }
+ if (row_shifts) free( row_shifts );
+#endif
+
+ if (tiled_image) free(tilebuf);
+ if (pal) free(pal);
+
+ switch(orientation){
+ case ORIENTATION_TOPRIGHT: /* row 0 top, col 0 rhs */
+ Mirror();
+ break;
+ case ORIENTATION_BOTRIGHT: /* row 0 bottom, col 0 rhs */
+ Flip();
+ Mirror();
+ break;
+ case ORIENTATION_BOTLEFT: /* row 0 bottom, col 0 lhs */
+ Flip();
+ break;
+ case ORIENTATION_LEFTTOP: /* row 0 lhs, col 0 top */
+ RotateRight();
+ Mirror();
+ break;
+ case ORIENTATION_RIGHTTOP: /* row 0 rhs, col 0 top */
+ RotateLeft();
+ break;
+ case ORIENTATION_RIGHTBOT: /* row 0 rhs, col 0 bottom */
+ RotateLeft();
+ Mirror();
+ break;
+ case ORIENTATION_LEFTBOT: /* row 0 lhs, col 0 bottom */
+ RotateRight();
+ break;
+ }
+
+ }
+ } cx_catch {
+ if (strcmp(message,"")) strncpy(info.szLastError,message,255);
+ if (m_tif) TIFFClose(m_tif);
+ if (info.nEscape == -1 && info.dwType == CXIMAGE_FORMAT_TIF) return true;
+ return false;
+ }
+ TIFFClose(m_tif);
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+#endif //CXIMAGE_SUPPORT_DECODE
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_SUPPORT_ENCODE
+////////////////////////////////////////////////////////////////////////////////
+bool CxImageTIF::Encode(CxFile * hFile, bool bAppend)
+{
+ cx_try
+ {
+ if (hFile==NULL) cx_throw(CXIMAGE_ERR_NOFILE);
+ if (pDib==NULL) cx_throw(CXIMAGE_ERR_NOIMAGE);
+
+ // <RJ> replaced "w+b" with "a", to append an image directly on an existing file
+ if (m_tif2==NULL) m_tif2=_TIFFOpenEx(hFile, "a");
+ if (m_tif2==NULL) cx_throw("initialization fail");
+
+ if (bAppend || m_pages) m_multipage=true;
+ m_pages++;
+
+ if (!EncodeBody(m_tif2,m_multipage,m_pages,m_pages)) cx_throw("Error saving TIFF file");
+ if (bAppend) {
+ if (!TIFFWriteDirectory(m_tif2)) cx_throw("Error saving TIFF directory");
+ }
+ } cx_catch {
+ if (strcmp(message,"")) strncpy(info.szLastError,message,255);
+ if (m_tif2){
+ TIFFClose(m_tif2);
+ m_tif2=NULL;
+ m_multipage=false;
+ m_pages=0;
+ }
+ return false;
+ }
+ if (!bAppend){
+ TIFFClose(m_tif2);
+ m_tif2=NULL;
+ m_multipage=false;
+ m_pages=0;
+ }
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+// Thanks to Abe <God(dot)bless(at)marihuana(dot)com>
+bool CxImageTIF::Encode(CxFile * hFile, CxImage ** pImages, int32_t pagecount)
+{
+ cx_try
+ {
+ if (hFile==NULL) cx_throw("invalid file pointer");
+ if (pImages==NULL || pagecount<=0) cx_throw("multipage TIFF, no images!");
+
+ int32_t i;
+ for (i=0; i<pagecount; i++){
+ if (pImages[i]==NULL)
+ cx_throw("Bad image pointer");
+ if (!(pImages[i]->IsValid()))
+ cx_throw("Empty image");
+ }
+
+ CxImageTIF ghost;
+ for (i=0; i<pagecount; i++){
+ ghost.Ghost(pImages[i]);
+ if (!ghost.Encode(hFile,true)) cx_throw("Error saving TIFF file");
+ }
+ } cx_catch {
+ if (strcmp(message,"")) strncpy(info.szLastError,message,255);
+ return false;
+ }
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+bool CxImageTIF::EncodeBody(TIFF *m_tif, bool multipage, int32_t page, int32_t pagecount)
+{
+ uint32 height=head.biHeight;
+ uint32 width=head.biWidth;
+ uint16 bitcount=head.biBitCount;
+ uint16 bitspersample;
+ uint16 samplesperpixel;
+ uint16 photometric=0;
+ uint16 compression;
+// uint16 pitch;
+// int32_t line;
+ uint32 x, y;
+
+ samplesperpixel = ((bitcount == 24) || (bitcount == 32)) ? (uint8_t)3 : (uint8_t)1;
+#if CXIMAGE_SUPPORT_ALPHA
+ if (bitcount==24 && AlphaIsValid()) { bitcount=32; samplesperpixel=4; }
+#endif //CXIMAGE_SUPPORT_ALPHA
+
+ bitspersample = bitcount / samplesperpixel;
+
+ //set the PHOTOMETRIC tag
+ RGBQUAD *rgb = GetPalette();
+ switch (bitcount) {
+ case 1:
+ if (CompareColors(&rgb[0],&rgb[1])<0) {
+ /* <abe> some viewers do not handle PHOTOMETRIC_MINISBLACK:
+ * let's transform the image in PHOTOMETRIC_MINISWHITE
+ */
+ //invert the colors
+ RGBQUAD tempRGB=GetPaletteColor(0);
+ SetPaletteColor(0,GetPaletteColor(1));
+ SetPaletteColor(1,tempRGB);
+ //invert the pixels
+ uint8_t *iSrc=info.pImage;
+ for (uint32_t i=0;i<head.biSizeImage;i++){
+ *iSrc=(uint8_t)~(*(iSrc));
+ iSrc++;
+ }
+ photometric = PHOTOMETRIC_MINISWHITE;
+ //photometric = PHOTOMETRIC_MINISBLACK;
+ } else {
+ photometric = PHOTOMETRIC_MINISWHITE;
+ }
+ break;
+ case 4: // Check if the DIB has a color or a greyscale palette
+ case 8:
+ photometric = PHOTOMETRIC_MINISBLACK; //default to gray scale
+ for (x = 0; x < head.biClrUsed; x++) {
+ if ((rgb->rgbRed != x)||(rgb->rgbRed != rgb->rgbGreen)||(rgb->rgbRed != rgb->rgbBlue)){
+ photometric = PHOTOMETRIC_PALETTE;
+ break;
+ }
+ rgb++;
+ }
+ break;
+ case 24:
+ case 32:
+ photometric = PHOTOMETRIC_RGB;
+ break;
+ }
+
+#if CXIMAGE_SUPPORT_ALPHA
+ if (AlphaIsValid() && bitcount==8) samplesperpixel=2; //8bpp + alpha layer
+#endif //CXIMAGE_SUPPORT_ALPHA
+
+// line = CalculateLine(width, bitspersample * samplesperpixel);
+// pitch = (uint16)CalculatePitch(line);
+
+ //prepare the palette struct
+ RGBQUAD pal[256];
+ if (GetPalette()){
+ uint8_t b;
+ memcpy(pal,GetPalette(),GetPaletteSize());
+ for(uint16_t a=0;a<head.biClrUsed;a++){ //swap blue and red components
+ b=pal[a].rgbBlue; pal[a].rgbBlue=pal[a].rgbRed; pal[a].rgbRed=b;
+ }
+ }
+
+ // handle standard width/height/bpp stuff
+ TIFFSetField(m_tif, TIFFTAG_IMAGEWIDTH, width);
+ TIFFSetField(m_tif, TIFFTAG_IMAGELENGTH, height);
+ TIFFSetField(m_tif, TIFFTAG_SAMPLESPERPIXEL, samplesperpixel);
+ TIFFSetField(m_tif, TIFFTAG_BITSPERSAMPLE, bitspersample);
+ TIFFSetField(m_tif, TIFFTAG_PHOTOMETRIC, photometric);
+ TIFFSetField(m_tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG); // single image plane
+ TIFFSetField(m_tif, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT);
+
+ uint32 rowsperstrip = TIFFDefaultStripSize(m_tif, (uint32) -1); //<REC> gives better compression
+ TIFFSetField(m_tif, TIFFTAG_ROWSPERSTRIP, rowsperstrip);
+
+ // handle metrics
+ TIFFSetField(m_tif, TIFFTAG_RESOLUTIONUNIT, RESUNIT_INCH);
+ TIFFSetField(m_tif, TIFFTAG_XRESOLUTION, (float)info.xDPI);
+ TIFFSetField(m_tif, TIFFTAG_YRESOLUTION, (float)info.yDPI);
+// TIFFSetField(m_tif, TIFFTAG_XPOSITION, (float)info.xOffset);
+// TIFFSetField(m_tif, TIFFTAG_YPOSITION, (float)info.yOffset);
+
+ // multi-paging - Thanks to Abe <God(dot)bless(at)marihuana(dot)com>
+ if (multipage)
+ {
+ char page_number[20];
+ sprintf(page_number, "Page %d", page);
+
+ TIFFSetField(m_tif, TIFFTAG_SUBFILETYPE, FILETYPE_PAGE);
+ TIFFSetField(m_tif, TIFFTAG_PAGENUMBER, page,pagecount);
+ TIFFSetField(m_tif, TIFFTAG_PAGENAME, page_number);
+ } else {
+ TIFFSetField(m_tif, TIFFTAG_SUBFILETYPE, 0);
+ }
+
+ // palettes (image colormaps are automatically scaled to 16-bits)
+ if (photometric == PHOTOMETRIC_PALETTE) {
+ uint16 *r, *g, *b;
+ r = (uint16 *) _TIFFmalloc(sizeof(uint16) * 3 * 256);
+ g = r + 256;
+ b = g + 256;
+
+ for (int32_t i = 255; i >= 0; i--) {
+ b[i] = (uint16)SCALE((uint16)pal[i].rgbRed);
+ g[i] = (uint16)SCALE((uint16)pal[i].rgbGreen);
+ r[i] = (uint16)SCALE((uint16)pal[i].rgbBlue);
+ }
+
+ TIFFSetField(m_tif, TIFFTAG_COLORMAP, r, g, b);
+ _TIFFfree(r);
+ }
+
+ // compression
+ if (GetCodecOption(CXIMAGE_FORMAT_TIF)) {
+ compression = (uint16_t)GetCodecOption(CXIMAGE_FORMAT_TIF);
+ } else {
+ switch (bitcount) {
+ case 1 :
+ compression = COMPRESSION_CCITTFAX4;
+ break;
+ case 4 :
+ case 8 :
+ compression = COMPRESSION_LZW;
+ break;
+ case 24 :
+ case 32 :
+ compression = COMPRESSION_JPEG;
+ break;
+ default :
+ compression = COMPRESSION_NONE;
+ break;
+ }
+ }
+ TIFFSetField(m_tif, TIFFTAG_COMPRESSION, compression);
+
+ switch (compression) {
+ case COMPRESSION_JPEG:
+ TIFFSetField(m_tif, TIFFTAG_JPEGQUALITY, GetJpegQuality());
+ TIFFSetField(m_tif, TIFFTAG_ROWSPERSTRIP, ((7+rowsperstrip)>>3)<<3);
+ break;
+ case COMPRESSION_LZW:
+ if (bitcount>=8) TIFFSetField(m_tif, TIFFTAG_PREDICTOR, 2);
+ break;
+ }
+
+ // read the DIB lines from bottom to top and save them in the TIF
+
+ uint8_t *bits;
+ switch(bitcount) {
+ case 1 :
+ case 4 :
+ case 8 :
+ {
+ if (samplesperpixel==1){
+ bits = (uint8_t*)malloc(info.dwEffWidth);
+ if (!bits) return false;
+ for (y = 0; y < height; y++) {
+ memcpy(bits,info.pImage + (height - y - 1)*info.dwEffWidth,info.dwEffWidth);
+ if (TIFFWriteScanline(m_tif,bits, y, 0)==-1){
+ free(bits);
+ return false;
+ }
+ }
+ free(bits);
+ }
+#if CXIMAGE_SUPPORT_ALPHA
+ else { //8bpp + alpha layer
+ bits = (uint8_t*)malloc(2*width);
+ if (!bits) return false;
+ for (y = 0; y < height; y++) {
+ for (x=0;x<width;x++){
+ bits[2*x]=BlindGetPixelIndex(x,height - y - 1);
+ bits[2*x+1]=AlphaGet(x,height - y - 1);
+ }
+ if (TIFFWriteScanline(m_tif,bits, y, 0)==-1) {
+ free(bits);
+ return false;
+ }
+ }
+ free(bits);
+ }
+#endif //CXIMAGE_SUPPORT_ALPHA
+ break;
+ }
+ case 24:
+ {
+ uint8_t *buffer = (uint8_t *)malloc(info.dwEffWidth);
+ if (!buffer) return false;
+ for (y = 0; y < height; y++) {
+ // get a pointer to the scanline
+ memcpy(buffer, info.pImage + (height - y - 1)*info.dwEffWidth, info.dwEffWidth);
+ // TIFFs store color data RGB instead of BGR
+ uint8_t *pBuf = buffer;
+ for (x = 0; x < width; x++) {
+ uint8_t tmp = pBuf[0];
+ pBuf[0] = pBuf[2];
+ pBuf[2] = tmp;
+ pBuf += 3;
+ }
+ // write the scanline to disc
+ if (TIFFWriteScanline(m_tif, buffer, y, 0)==-1){
+ free(buffer);
+ return false;
+ }
+ }
+ free(buffer);
+ break;
+ }
+ case 32 :
+ {
+#if CXIMAGE_SUPPORT_ALPHA
+ uint8_t *buffer = (uint8_t *)malloc((info.dwEffWidth*4)/3);
+ if (!buffer) return false;
+ for (y = 0; y < height; y++) {
+ // get a pointer to the scanline
+ memcpy(buffer, info.pImage + (height - y - 1)*info.dwEffWidth, info.dwEffWidth);
+ // TIFFs store color data RGB instead of BGR
+ uint8_t *pSrc = buffer + 3 * width;
+ uint8_t *pDst = buffer + 4 * width;
+ for (x = 0; x < width; x++) {
+ pDst-=4;
+ pSrc-=3;
+ pDst[3] = AlphaGet(width-x-1,height-y-1);
+ pDst[2] = pSrc[0];
+ pDst[1] = pSrc[1];
+ pDst[0] = pSrc[2];
+ }
+ // write the scanline to disc
+ if (TIFFWriteScanline(m_tif, buffer, y, 0)==-1){
+ free(buffer);
+ return false;
+ }
+ }
+ free(buffer);
+#endif //CXIMAGE_SUPPORT_ALPHA
+ break;
+ }
+ }
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+#endif // CXIMAGE_SUPPORT_ENCODE
+////////////////////////////////////////////////////////////////////////////////
+void CxImageTIF::TileToStrip(uint8* out, uint8* in, uint32 rows, uint32 cols, int32_t outskew, int32_t inskew)
+{
+ while (rows-- > 0) {
+ uint32 j = cols;
+ while (j-- > 0)
+ *out++ = *in++;
+ out += outskew;
+ in += inskew;
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+TIFF* CxImageTIF::TIFFOpenEx(CxFile * hFile)
+{
+ if (hFile) return _TIFFOpenEx(hFile, "rb");
+ return NULL;
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImageTIF::TIFFCloseEx(TIFF* tif)
+{
+ if (tif) TIFFClose(tif);
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImageTIF::MoveBits( uint8_t* dest, uint8_t* from, int32_t count, int32_t bpp )
+{ int32_t offbits = 0;
+ uint16 w;
+ uint32 d;
+ if (bpp <= 8) {
+ while (count-- > 0) {
+ if (offbits + bpp <= 8)
+ w = *from >> (8 - offbits - bpp);
+ else {
+ w = *from++ << (offbits + bpp - 8);
+ w |= *from >> (16 - offbits - bpp);
+ }
+ offbits += bpp;
+ if (offbits >= 8) {
+ offbits -= 8;
+ if (offbits == 0) from++;
+ }
+ *dest++ = (uint8_t)w & ((1 << bpp)-1);
+ }
+ } else if (bpp < 16) {
+ while (count-- > 0) {
+ d = (*from << 24) | (from[1]<<16) | (from[2]<<8) | from[3];
+ d >>= (24 - offbits);
+ *dest++ = (uint8_t) ( d );
+ offbits += bpp;
+ while (offbits >= 8) {
+ from++;
+ offbits -= 8;
+ }
+ }
+ } else if (bpp < 32) {
+ while (count-- > 0) {
+ d = (*from << 24) | (from[1]<<16) | (from[2]<<8) | from[3];
+ //d = *(uint32*)from;
+ *dest++ = (uint8_t) ( d >> (offbits + bpp - 8) );
+ offbits += bpp;
+ while (offbits >= 8) {
+ from++;
+ offbits -= 8;
+ }
+ }
+ } else {
+ while (count-- > 0) {
+ d = *(uint32*)from;
+ *dest++ = (uint8_t) (d >> 24);
+ from += 4;
+ }
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImageTIF::MoveBitsPal( uint8_t* dest, uint8_t*from, int32_t count, int32_t bpp, RGBQUAD* pal )
+{ int32_t offbits = 0;
+ uint32 d;
+ uint16 palidx;
+ while (count-- > 0) {
+ d = (*from << 24) | ( *( from + 1 ) << 16 )
+ | ( *( from + 2 ) << 8 )
+ | ( *( from + 3 ) );
+ palidx = (uint16) (d >> (32 - offbits - bpp));
+ if (bpp < 16) {
+ palidx <<= 16-bpp;
+ palidx = (palidx >> 8) | (palidx <<8);
+ palidx >>= 16-bpp;
+ } else palidx = (palidx >> 8) | (palidx << 8);
+ *dest++ = pal[palidx].rgbBlue;
+ *dest++ = pal[palidx].rgbGreen;
+ *dest++ = pal[palidx].rgbRed;
+ offbits += bpp;
+ while (offbits >= 8) {
+ from++;
+ offbits -= 8;
+ }
+ }
+}
+////////////////////////////////////////////////////////////////////////////////
+
+#endif // CXIMAGE_SUPPORT_TIF
diff --git a/smelt/sdl/CxImage/ximatif.h b/smelt/sdl/CxImage/ximatif.h new file mode 100644 index 0000000..5ea31f0 --- /dev/null +++ b/smelt/sdl/CxImage/ximatif.h @@ -0,0 +1,62 @@ +/*
+ * File: ximatif.h
+ * Purpose: TIFF Image Class Loader and Writer
+ */
+/* ==========================================================
+ * CxImageTIF (c) 07/Aug/2001 Davide Pizzolato - www.xdp.it
+ * For conditions of distribution and use, see copyright notice in ximage.h
+ *
+ * Special thanks to Troels Knakkergaard for new features, enhancements and bugfixes
+ *
+ * Special thanks to Abe <God(dot)bless(at)marihuana(dot)com> for MultiPageTIFF code.
+ *
+ * LibTIFF is:
+ * Copyright (c) 1988-1997 Sam Leffler
+ * Copyright (c) 1991-1997 Silicon Graphics, Inc.
+ * ==========================================================
+ */
+
+#if !defined(__ximatif_h)
+#define __ximatif_h
+
+#include "ximage.h"
+
+#if CXIMAGE_SUPPORT_TIF
+
+#include "../tiff/tiffio.h"
+
+class DLL_EXP CxImageTIF: public CxImage
+{
+public:
+ CxImageTIF(): CxImage(CXIMAGE_FORMAT_TIF) {m_tif2=NULL; m_multipage=false; m_pages=0;}
+ ~CxImageTIF();
+
+ TIFF* TIFFOpenEx(CxFile * hFile);
+ void TIFFCloseEx(TIFF* tif);
+
+// bool Load(const TCHAR * imageFileName){ return CxImage::Load(imageFileName,CXIMAGE_FORMAT_TIF);}
+// bool Save(const TCHAR * imageFileName){ return CxImage::Save(imageFileName,CXIMAGE_FORMAT_TIF);}
+ bool Decode(CxFile * hFile);
+ bool Decode(FILE *hFile) { CxIOFile file(hFile); return Decode(&file); }
+
+#if CXIMAGE_SUPPORT_ENCODE
+ bool Encode(CxFile * hFile, bool bAppend=false);
+ bool Encode(CxFile * hFile, CxImage ** pImages, int32_t pagecount);
+ bool Encode(FILE *hFile, bool bAppend=false) { CxIOFile file(hFile); return Encode(&file,bAppend); }
+ bool Encode(FILE *hFile, CxImage ** pImages, int32_t pagecount)
+ { CxIOFile file(hFile); return Encode(&file, pImages, pagecount); }
+#endif // CXIMAGE_SUPPORT_ENCODE
+
+protected:
+ void TileToStrip(uint8* out, uint8* in, uint32 rows, uint32 cols, int32_t outskew, int32_t inskew);
+ bool EncodeBody(TIFF *m_tif, bool multipage=false, int32_t page=0, int32_t pagecount=0);
+ TIFF *m_tif2;
+ bool m_multipage;
+ int32_t m_pages;
+ void MoveBits( uint8_t* dest, uint8_t* from, int32_t count, int32_t bpp );
+ void MoveBitsPal( uint8_t* dest, uint8_t*from, int32_t count, int32_t bpp, RGBQUAD* pal );
+};
+
+#endif
+
+#endif
diff --git a/smelt/sdl/CxImage/ximatran.cpp b/smelt/sdl/CxImage/ximatran.cpp new file mode 100644 index 0000000..decac18 --- /dev/null +++ b/smelt/sdl/CxImage/ximatran.cpp @@ -0,0 +1,2728 @@ +// xImaTran.cpp : Transformation functions
+/* 07/08/2001 v1.00 - Davide Pizzolato - www.xdp.it
+ * CxImage version 7.0.0 31/Dec/2010
+ */
+
+#include "ximage.h"
+#include "ximath.h"
+
+#if CXIMAGE_SUPPORT_BASICTRANSFORMATIONS
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Increases the number of bits per pixel of the image.
+ * \param nbit: 4, 8, 24
+ */
+bool CxImage::IncreaseBpp(uint32_t nbit)
+{
+ if (!pDib) return false;
+ switch (nbit){
+ case 4:
+ {
+ if (head.biBitCount==4) return true;
+ if (head.biBitCount>4) return false;
+
+ CxImage tmp;
+ tmp.CopyInfo(*this);
+ tmp.Create(head.biWidth,head.biHeight,4,info.dwType);
+ tmp.SetPalette(GetPalette(),GetNumColors());
+ if (!tmp.IsValid()){
+ strcpy(info.szLastError,tmp.GetLastError());
+ return false;
+ }
+
+
+#if CXIMAGE_SUPPORT_SELECTION
+ tmp.SelectionCopy(*this);
+#endif //CXIMAGE_SUPPORT_SELECTION
+
+#if CXIMAGE_SUPPORT_ALPHA
+ tmp.AlphaCopy(*this);
+#endif //CXIMAGE_SUPPORT_ALPHA
+
+ for (int32_t y=0;y<head.biHeight;y++){
+ if (info.nEscape) break;
+ for (int32_t x=0;x<head.biWidth;x++){
+ tmp.BlindSetPixelIndex(x,y,BlindGetPixelIndex(x,y));
+ }
+ }
+ Transfer(tmp);
+ return true;
+ }
+ case 8:
+ {
+ if (head.biBitCount==8) return true;
+ if (head.biBitCount>8) return false;
+
+ CxImage tmp;
+ tmp.CopyInfo(*this);
+ tmp.Create(head.biWidth,head.biHeight,8,info.dwType);
+ tmp.SetPalette(GetPalette(),GetNumColors());
+ if (!tmp.IsValid()){
+ strcpy(info.szLastError,tmp.GetLastError());
+ return false;
+ }
+
+#if CXIMAGE_SUPPORT_SELECTION
+ tmp.SelectionCopy(*this);
+#endif //CXIMAGE_SUPPORT_SELECTION
+
+#if CXIMAGE_SUPPORT_ALPHA
+ tmp.AlphaCopy(*this);
+#endif //CXIMAGE_SUPPORT_ALPHA
+
+ for (int32_t y=0;y<head.biHeight;y++){
+ if (info.nEscape) break;
+ for (int32_t x=0;x<head.biWidth;x++){
+ tmp.BlindSetPixelIndex(x,y,BlindGetPixelIndex(x,y));
+ }
+ }
+ Transfer(tmp);
+ return true;
+ }
+ case 24:
+ {
+ if (head.biBitCount==24) return true;
+ if (head.biBitCount>24) return false;
+
+ CxImage tmp;
+ tmp.CopyInfo(*this);
+ tmp.Create(head.biWidth,head.biHeight,24,info.dwType);
+ if (!tmp.IsValid()){
+ strcpy(info.szLastError,tmp.GetLastError());
+ return false;
+ }
+
+ if (info.nBkgndIndex>=0) //translate transparency
+ tmp.info.nBkgndColor=GetPaletteColor((uint8_t)info.nBkgndIndex);
+
+#if CXIMAGE_SUPPORT_SELECTION
+ tmp.SelectionCopy(*this);
+#endif //CXIMAGE_SUPPORT_SELECTION
+
+#if CXIMAGE_SUPPORT_ALPHA
+ tmp.AlphaCopy(*this);
+ if (AlphaPaletteIsValid() && !AlphaIsValid()) tmp.AlphaCreate();
+#endif //CXIMAGE_SUPPORT_ALPHA
+
+ for (int32_t y=0;y<head.biHeight;y++){
+ if (info.nEscape) break;
+ for (int32_t x=0;x<head.biWidth;x++){
+ tmp.BlindSetPixelColor(x,y,BlindGetPixelColor(x,y),true);
+ }
+ }
+ Transfer(tmp);
+ return true;
+ }
+ }
+ return false;
+}
+////////////////////////////////////////////////////////////////////////////////
+bool CxImage::GrayScale()
+{
+ if (!pDib) return false;
+ if (head.biBitCount<=8){
+ RGBQUAD* ppal=GetPalette();
+ int32_t gray;
+ //converts the colors to gray, use the blue channel only
+ for(uint32_t i=0;i<head.biClrUsed;i++){
+ gray=(int32_t)RGB2GRAY(ppal[i].rgbRed,ppal[i].rgbGreen,ppal[i].rgbBlue);
+ ppal[i].rgbBlue = (uint8_t)gray;
+ }
+ // preserve transparency
+ if (info.nBkgndIndex >= 0) info.nBkgndIndex = ppal[info.nBkgndIndex].rgbBlue;
+ //create a "real" 8 bit gray scale image
+ if (head.biBitCount==8){
+ uint8_t *img=info.pImage;
+ for(uint32_t i=0;i<head.biSizeImage;i++) img[i]=ppal[img[i]].rgbBlue;
+ SetGrayPalette();
+ }
+ //transform to 8 bit gray scale
+ if (head.biBitCount==4 || head.biBitCount==1){
+ CxImage ima;
+ ima.CopyInfo(*this);
+ if (!ima.Create(head.biWidth,head.biHeight,8,info.dwType)) return false;
+ ima.SetGrayPalette();
+#if CXIMAGE_SUPPORT_SELECTION
+ ima.SelectionCopy(*this);
+#endif //CXIMAGE_SUPPORT_SELECTION
+#if CXIMAGE_SUPPORT_ALPHA
+ ima.AlphaCopy(*this);
+#endif //CXIMAGE_SUPPORT_ALPHA
+ for (int32_t y=0;y<head.biHeight;y++){
+ uint8_t *iDst = ima.GetBits(y);
+ uint8_t *iSrc = GetBits(y);
+ for (int32_t x=0;x<head.biWidth; x++){
+ //iDst[x]=ppal[BlindGetPixelIndex(x,y)].rgbBlue;
+ if (head.biBitCount==4){
+ uint8_t pos = (uint8_t)(4*(1-x%2));
+ iDst[x]= ppal[(uint8_t)((iSrc[x >> 1]&((uint8_t)0x0F<<pos)) >> pos)].rgbBlue;
+ } else {
+ uint8_t pos = (uint8_t)(7-x%8);
+ iDst[x]= ppal[(uint8_t)((iSrc[x >> 3]&((uint8_t)0x01<<pos)) >> pos)].rgbBlue;
+ }
+ }
+ }
+ Transfer(ima);
+ }
+ } else { //from RGB to 8 bit gray scale
+ uint8_t *iSrc=info.pImage;
+ CxImage ima;
+ ima.CopyInfo(*this);
+ if (!ima.Create(head.biWidth,head.biHeight,8,info.dwType)) return false;
+ ima.SetGrayPalette();
+ if (GetTransIndex()>=0){
+ RGBQUAD c = GetTransColor();
+ ima.SetTransIndex((uint8_t)RGB2GRAY(c.rgbRed,c.rgbGreen,c.rgbBlue));
+ }
+#if CXIMAGE_SUPPORT_SELECTION
+ ima.SelectionCopy(*this);
+#endif //CXIMAGE_SUPPORT_SELECTION
+#if CXIMAGE_SUPPORT_ALPHA
+ ima.AlphaCopy(*this);
+#endif //CXIMAGE_SUPPORT_ALPHA
+ uint8_t *img=ima.GetBits();
+ int32_t l8=ima.GetEffWidth();
+ int32_t l=head.biWidth * 3;
+ for(int32_t y=0; y < head.biHeight; y++) {
+ for(int32_t x=0,x8=0; x < l; x+=3,x8++) {
+ img[x8+y*l8]=(uint8_t)RGB2GRAY(*(iSrc+x+2),*(iSrc+x+1),*(iSrc+x+0));
+ }
+ iSrc+=info.dwEffWidth;
+ }
+ Transfer(ima);
+ }
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * \sa Mirror
+ * \author [qhbo]
+ */
+bool CxImage::Flip(bool bFlipSelection, bool bFlipAlpha)
+{
+ if (!pDib) return false;
+
+ uint8_t *buff = (uint8_t*)malloc(info.dwEffWidth);
+ if (!buff) return false;
+
+ uint8_t *iSrc,*iDst;
+ iSrc = GetBits(head.biHeight-1);
+ iDst = GetBits(0);
+ for (int32_t i=0; i<(head.biHeight/2); ++i)
+ {
+ memcpy(buff, iSrc, info.dwEffWidth);
+ memcpy(iSrc, iDst, info.dwEffWidth);
+ memcpy(iDst, buff, info.dwEffWidth);
+ iSrc-=info.dwEffWidth;
+ iDst+=info.dwEffWidth;
+ }
+
+ free(buff);
+
+ if (bFlipSelection){
+#if CXIMAGE_SUPPORT_SELECTION
+ SelectionFlip();
+#endif //CXIMAGE_SUPPORT_SELECTION
+ }
+
+ if (bFlipAlpha){
+#if CXIMAGE_SUPPORT_ALPHA
+ AlphaFlip();
+#endif //CXIMAGE_SUPPORT_ALPHA
+ }
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * \sa Flip
+ */
+bool CxImage::Mirror(bool bMirrorSelection, bool bMirrorAlpha)
+{
+ if (!pDib) return false;
+
+ CxImage* imatmp = new CxImage(*this,false,true,true);
+ if (!imatmp) return false;
+ if (!imatmp->IsValid()){
+ delete imatmp;
+ return false;
+ }
+
+ uint8_t *iSrc,*iDst;
+ int32_t wdt=(head.biWidth-1) * (head.biBitCount==24 ? 3:1);
+ iSrc=info.pImage + wdt;
+ iDst=imatmp->info.pImage;
+ int32_t x,y;
+ switch (head.biBitCount){
+ case 24:
+ for(y=0; y < head.biHeight; y++){
+ for(x=0; x <= wdt; x+=3){
+ *(iDst+x)=*(iSrc-x);
+ *(iDst+x+1)=*(iSrc-x+1);
+ *(iDst+x+2)=*(iSrc-x+2);
+ }
+ iSrc+=info.dwEffWidth;
+ iDst+=info.dwEffWidth;
+ }
+ break;
+ case 8:
+ for(y=0; y < head.biHeight; y++){
+ for(x=0; x <= wdt; x++)
+ *(iDst+x)=*(iSrc-x);
+ iSrc+=info.dwEffWidth;
+ iDst+=info.dwEffWidth;
+ }
+ break;
+ default:
+ for(y=0; y < head.biHeight; y++){
+ for(x=0; x <= wdt; x++)
+ imatmp->SetPixelIndex(x,y,GetPixelIndex(wdt-x,y));
+ }
+ }
+
+ if (bMirrorSelection){
+#if CXIMAGE_SUPPORT_SELECTION
+ imatmp->SelectionMirror();
+#endif //CXIMAGE_SUPPORT_SELECTION
+ }
+
+ if (bMirrorAlpha){
+#if CXIMAGE_SUPPORT_ALPHA
+ imatmp->AlphaMirror();
+#endif //CXIMAGE_SUPPORT_ALPHA
+ }
+
+ Transfer(*imatmp);
+ delete imatmp;
+ return true;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+#define RBLOCK 64
+
+////////////////////////////////////////////////////////////////////////////////
+bool CxImage::RotateLeft(CxImage* iDst)
+{
+ if (!pDib) return false;
+
+ int32_t newWidth = GetHeight();
+ int32_t newHeight = GetWidth();
+
+ CxImage imgDest;
+ imgDest.CopyInfo(*this);
+ imgDest.Create(newWidth,newHeight,GetBpp(),GetType());
+ imgDest.SetPalette(GetPalette());
+
+#if CXIMAGE_SUPPORT_ALPHA
+ if (AlphaIsValid()) imgDest.AlphaCreate();
+#endif
+
+#if CXIMAGE_SUPPORT_SELECTION
+ if (SelectionIsValid()) imgDest.SelectionCreate();
+#endif
+
+ int32_t x,x2,y,dlineup;
+
+ // Speedy rotate for BW images <Robert Abram>
+ if (head.biBitCount == 1) {
+
+ uint8_t *sbits, *dbits, *dbitsmax, bitpos, *nrow,*srcdisp;
+ ldiv_t div_r;
+
+ uint8_t *bsrc = GetBits(), *bdest = imgDest.GetBits();
+ dbitsmax = bdest + imgDest.head.biSizeImage - 1;
+ dlineup = 8 * imgDest.info.dwEffWidth - imgDest.head.biWidth;
+
+ imgDest.Clear(0);
+ for (y = 0; y < head.biHeight; y++) {
+ // Figure out the Column we are going to be copying to
+ div_r = ldiv(y + dlineup, (int32_t)8);
+ // set bit pos of src column byte
+ bitpos = (uint8_t)(1 << div_r.rem);
+ srcdisp = bsrc + y * info.dwEffWidth;
+ for (x = 0; x < (int32_t)info.dwEffWidth; x++) {
+ // Get Source Bits
+ sbits = srcdisp + x;
+ // Get destination column
+ nrow = bdest + (x * 8) * imgDest.info.dwEffWidth + imgDest.info.dwEffWidth - 1 - div_r.quot;
+ for (int32_t z = 0; z < 8; z++) {
+ // Get Destination Byte
+ dbits = nrow + z * imgDest.info.dwEffWidth;
+ if ((dbits < bdest) || (dbits > dbitsmax)) break;
+ if (*sbits & (128 >> z)) *dbits |= bitpos;
+ }
+ }
+ }//for y
+
+#if CXIMAGE_SUPPORT_ALPHA
+ if (AlphaIsValid()) {
+ for (x = 0; x < newWidth; x++){
+ x2=newWidth-x-1;
+ for (y = 0; y < newHeight; y++){
+ imgDest.AlphaSet(x,y,BlindAlphaGet(y, x2));
+ }//for y
+ }//for x
+ }
+#endif //CXIMAGE_SUPPORT_ALPHA
+
+#if CXIMAGE_SUPPORT_SELECTION
+ if (SelectionIsValid()) {
+ imgDest.info.rSelectionBox.left = newWidth-info.rSelectionBox.top;
+ imgDest.info.rSelectionBox.right = newWidth-info.rSelectionBox.bottom;
+ imgDest.info.rSelectionBox.bottom = info.rSelectionBox.left;
+ imgDest.info.rSelectionBox.top = info.rSelectionBox.right;
+ for (x = 0; x < newWidth; x++){
+ x2=newWidth-x-1;
+ for (y = 0; y < newHeight; y++){
+ imgDest.SelectionSet(x,y,BlindSelectionGet(y, x2));
+ }//for y
+ }//for x
+ }
+#endif //CXIMAGE_SUPPORT_SELECTION
+
+ } else {
+ //anything other than BW:
+ //bd, 10. 2004: This optimized version of rotation rotates image by smaller blocks. It is quite
+ //a bit faster than obvious algorithm, because it produces much less CPU cache misses.
+ //This optimization can be tuned by changing block size (RBLOCK). 96 is good value for current
+ //CPUs (tested on Athlon XP and Celeron D). Larger value (if CPU has enough cache) will increase
+ //speed somehow, but once you drop out of CPU's cache, things will slow down drastically.
+ //For older CPUs with less cache, lower value would yield better results.
+
+ uint8_t *srcPtr, *dstPtr; //source and destionation for 24-bit version
+ int32_t xs, ys; //x-segment and y-segment
+ for (xs = 0; xs < newWidth; xs+=RBLOCK) { //for all image blocks of RBLOCK*RBLOCK pixels
+ for (ys = 0; ys < newHeight; ys+=RBLOCK) {
+ if (head.biBitCount==24) {
+ //RGB24 optimized pixel access:
+ for (x = xs; x < min(newWidth, xs+RBLOCK); x++){ //do rotation
+ info.nProgress = (int32_t)(100*x/newWidth);
+ x2=newWidth-x-1;
+ dstPtr = (uint8_t*) imgDest.BlindGetPixelPointer(x,ys);
+ srcPtr = (uint8_t*) BlindGetPixelPointer(ys, x2);
+ for (y = ys; y < min(newHeight, ys+RBLOCK); y++){
+ //imgDest.SetPixelColor(x, y, GetPixelColor(y, x2));
+ *(dstPtr) = *(srcPtr);
+ *(dstPtr+1) = *(srcPtr+1);
+ *(dstPtr+2) = *(srcPtr+2);
+ srcPtr += 3;
+ dstPtr += imgDest.info.dwEffWidth;
+ }//for y
+ }//for x
+ } else {
+ //anything else than 24bpp (and 1bpp): palette
+ for (x = xs; x < min(newWidth, xs+RBLOCK); x++){
+ info.nProgress = (int32_t)(100*x/newWidth); //<Anatoly Ivasyuk>
+ x2=newWidth-x-1;
+ for (y = ys; y < min(newHeight, ys+RBLOCK); y++){
+ imgDest.SetPixelIndex(x, y, BlindGetPixelIndex(y, x2));
+ }//for y
+ }//for x
+ }//if (version selection)
+#if CXIMAGE_SUPPORT_ALPHA
+ if (AlphaIsValid()) {
+ for (x = xs; x < min(newWidth, xs+RBLOCK); x++){
+ x2=newWidth-x-1;
+ for (y = ys; y < min(newHeight, ys+RBLOCK); y++){
+ imgDest.AlphaSet(x,y,BlindAlphaGet(y, x2));
+ }//for y
+ }//for x
+ }//if (alpha channel)
+#endif //CXIMAGE_SUPPORT_ALPHA
+
+#if CXIMAGE_SUPPORT_SELECTION
+ if (SelectionIsValid()) {
+ imgDest.info.rSelectionBox.left = newWidth-info.rSelectionBox.top;
+ imgDest.info.rSelectionBox.right = newWidth-info.rSelectionBox.bottom;
+ imgDest.info.rSelectionBox.bottom = info.rSelectionBox.left;
+ imgDest.info.rSelectionBox.top = info.rSelectionBox.right;
+ for (x = xs; x < min(newWidth, xs+RBLOCK); x++){
+ x2=newWidth-x-1;
+ for (y = ys; y < min(newHeight, ys+RBLOCK); y++){
+ imgDest.SelectionSet(x,y,BlindSelectionGet(y, x2));
+ }//for y
+ }//for x
+ }//if (selection)
+#endif //CXIMAGE_SUPPORT_SELECTION
+ }//for ys
+ }//for xs
+ }//if
+
+ //select the destination
+ if (iDst) iDst->Transfer(imgDest);
+ else Transfer(imgDest);
+ return true;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+bool CxImage::RotateRight(CxImage* iDst)
+{
+ if (!pDib) return false;
+
+ int32_t newWidth = GetHeight();
+ int32_t newHeight = GetWidth();
+
+ CxImage imgDest;
+ imgDest.CopyInfo(*this);
+ imgDest.Create(newWidth,newHeight,GetBpp(),GetType());
+ imgDest.SetPalette(GetPalette());
+
+#if CXIMAGE_SUPPORT_ALPHA
+ if (AlphaIsValid()) imgDest.AlphaCreate();
+#endif
+
+#if CXIMAGE_SUPPORT_SELECTION
+ if (SelectionIsValid()) imgDest.SelectionCreate();
+#endif
+
+ int32_t x,y,y2;
+ // Speedy rotate for BW images <Robert Abram>
+ if (head.biBitCount == 1) {
+
+ uint8_t *sbits, *dbits, *dbitsmax, bitpos, *nrow,*srcdisp;
+ ldiv_t div_r;
+
+ uint8_t *bsrc = GetBits(), *bdest = imgDest.GetBits();
+ dbitsmax = bdest + imgDest.head.biSizeImage - 1;
+
+ imgDest.Clear(0);
+ for (y = 0; y < head.biHeight; y++) {
+ // Figure out the Column we are going to be copying to
+ div_r = ldiv(y, (int32_t)8);
+ // set bit pos of src column byte
+ bitpos = (uint8_t)(128 >> div_r.rem);
+ srcdisp = bsrc + y * info.dwEffWidth;
+ for (x = 0; x < (int32_t)info.dwEffWidth; x++) {
+ // Get Source Bits
+ sbits = srcdisp + x;
+ // Get destination column
+ nrow = bdest + (imgDest.head.biHeight-1-(x*8)) * imgDest.info.dwEffWidth + div_r.quot;
+ for (int32_t z = 0; z < 8; z++) {
+ // Get Destination Byte
+ dbits = nrow - z * imgDest.info.dwEffWidth;
+ if ((dbits < bdest) || (dbits > dbitsmax)) break;
+ if (*sbits & (128 >> z)) *dbits |= bitpos;
+ }
+ }
+ }
+
+#if CXIMAGE_SUPPORT_ALPHA
+ if (AlphaIsValid()){
+ for (y = 0; y < newHeight; y++){
+ y2=newHeight-y-1;
+ for (x = 0; x < newWidth; x++){
+ imgDest.AlphaSet(x,y,BlindAlphaGet(y2, x));
+ }
+ }
+ }
+#endif //CXIMAGE_SUPPORT_ALPHA
+
+#if CXIMAGE_SUPPORT_SELECTION
+ if (SelectionIsValid()){
+ imgDest.info.rSelectionBox.left = info.rSelectionBox.bottom;
+ imgDest.info.rSelectionBox.right = info.rSelectionBox.top;
+ imgDest.info.rSelectionBox.bottom = newHeight-info.rSelectionBox.right;
+ imgDest.info.rSelectionBox.top = newHeight-info.rSelectionBox.left;
+ for (y = 0; y < newHeight; y++){
+ y2=newHeight-y-1;
+ for (x = 0; x < newWidth; x++){
+ imgDest.SelectionSet(x,y,BlindSelectionGet(y2, x));
+ }
+ }
+ }
+#endif //CXIMAGE_SUPPORT_SELECTION
+
+ } else {
+ //anything else but BW
+ uint8_t *srcPtr, *dstPtr; //source and destionation for 24-bit version
+ int32_t xs, ys; //x-segment and y-segment
+ for (xs = 0; xs < newWidth; xs+=RBLOCK) {
+ for (ys = 0; ys < newHeight; ys+=RBLOCK) {
+ if (head.biBitCount==24) {
+ //RGB24 optimized pixel access:
+ for (y = ys; y < min(newHeight, ys+RBLOCK); y++){
+ info.nProgress = (int32_t)(100*y/newHeight); //<Anatoly Ivasyuk>
+ y2=newHeight-y-1;
+ dstPtr = (uint8_t*) imgDest.BlindGetPixelPointer(xs,y);
+ srcPtr = (uint8_t*) BlindGetPixelPointer(y2, xs);
+ for (x = xs; x < min(newWidth, xs+RBLOCK); x++){
+ //imgDest.SetPixelColor(x, y, GetPixelColor(y2, x));
+ *(dstPtr) = *(srcPtr);
+ *(dstPtr+1) = *(srcPtr+1);
+ *(dstPtr+2) = *(srcPtr+2);
+ dstPtr += 3;
+ srcPtr += info.dwEffWidth;
+ }//for x
+ }//for y
+ } else {
+ //anything else than BW & RGB24: palette
+ for (y = ys; y < min(newHeight, ys+RBLOCK); y++){
+ info.nProgress = (int32_t)(100*y/newHeight); //<Anatoly Ivasyuk>
+ y2=newHeight-y-1;
+ for (x = xs; x < min(newWidth, xs+RBLOCK); x++){
+ imgDest.SetPixelIndex(x, y, BlindGetPixelIndex(y2, x));
+ }//for x
+ }//for y
+ }//if
+#if CXIMAGE_SUPPORT_ALPHA
+ if (AlphaIsValid()){
+ for (y = ys; y < min(newHeight, ys+RBLOCK); y++){
+ y2=newHeight-y-1;
+ for (x = xs; x < min(newWidth, xs+RBLOCK); x++){
+ imgDest.AlphaSet(x,y,BlindAlphaGet(y2, x));
+ }//for x
+ }//for y
+ }//if (has alpha)
+#endif //CXIMAGE_SUPPORT_ALPHA
+
+#if CXIMAGE_SUPPORT_SELECTION
+ if (SelectionIsValid()){
+ imgDest.info.rSelectionBox.left = info.rSelectionBox.bottom;
+ imgDest.info.rSelectionBox.right = info.rSelectionBox.top;
+ imgDest.info.rSelectionBox.bottom = newHeight-info.rSelectionBox.right;
+ imgDest.info.rSelectionBox.top = newHeight-info.rSelectionBox.left;
+ for (y = ys; y < min(newHeight, ys+RBLOCK); y++){
+ y2=newHeight-y-1;
+ for (x = xs; x < min(newWidth, xs+RBLOCK); x++){
+ imgDest.SelectionSet(x,y,BlindSelectionGet(y2, x));
+ }//for x
+ }//for y
+ }//if (has alpha)
+#endif //CXIMAGE_SUPPORT_SELECTION
+ }//for ys
+ }//for xs
+ }//if
+
+ //select the destination
+ if (iDst) iDst->Transfer(imgDest);
+ else Transfer(imgDest);
+ return true;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+bool CxImage::Negative()
+{
+ if (!pDib) return false;
+
+ if (head.biBitCount<=8){
+ if (IsGrayScale()){ //GRAYSCALE, selection
+ if (pSelection){
+ for(int32_t y=info.rSelectionBox.bottom; y<info.rSelectionBox.top; y++){
+ for(int32_t x=info.rSelectionBox.left; x<info.rSelectionBox.right; x++){
+#if CXIMAGE_SUPPORT_SELECTION
+ if (BlindSelectionIsInside(x,y))
+#endif //CXIMAGE_SUPPORT_SELECTION
+ {
+ BlindSetPixelIndex(x,y,(uint8_t)(255-BlindGetPixelIndex(x,y)));
+ }
+ }
+ }
+ } else {
+ uint8_t *iSrc=info.pImage;
+ for(uint32_t i=0; i < head.biSizeImage; i++){
+ *iSrc=(uint8_t)~(*(iSrc));
+ iSrc++;
+ }
+ }
+ } else { //PALETTE, full image
+ RGBQUAD* ppal=GetPalette();
+ for(uint32_t i=0;i<head.biClrUsed;i++){
+ ppal[i].rgbBlue =(uint8_t)(255-ppal[i].rgbBlue);
+ ppal[i].rgbGreen =(uint8_t)(255-ppal[i].rgbGreen);
+ ppal[i].rgbRed =(uint8_t)(255-ppal[i].rgbRed);
+ }
+ }
+ } else {
+ if (pSelection==NULL){ //RGB, full image
+ uint8_t *iSrc=info.pImage;
+ for(uint32_t i=0; i < head.biSizeImage; i++){
+ *iSrc=(uint8_t)~(*(iSrc));
+ iSrc++;
+ }
+ } else { // RGB with selection
+ RGBQUAD color;
+ for(int32_t y=info.rSelectionBox.bottom; y<info.rSelectionBox.top; y++){
+ for(int32_t x=info.rSelectionBox.left; x<info.rSelectionBox.right; x++){
+#if CXIMAGE_SUPPORT_SELECTION
+ if (BlindSelectionIsInside(x,y))
+#endif //CXIMAGE_SUPPORT_SELECTION
+ {
+ color = BlindGetPixelColor(x,y);
+ color.rgbRed = (uint8_t)(255-color.rgbRed);
+ color.rgbGreen = (uint8_t)(255-color.rgbGreen);
+ color.rgbBlue = (uint8_t)(255-color.rgbBlue);
+ BlindSetPixelColor(x,y,color);
+ }
+ }
+ }
+ }
+ //<DP> invert transparent color too
+ info.nBkgndColor.rgbBlue = (uint8_t)(255-info.nBkgndColor.rgbBlue);
+ info.nBkgndColor.rgbGreen = (uint8_t)(255-info.nBkgndColor.rgbGreen);
+ info.nBkgndColor.rgbRed = (uint8_t)(255-info.nBkgndColor.rgbRed);
+ }
+ return true;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+#endif //CXIMAGE_SUPPORT_BASICTRANSFORMATIONS
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_SUPPORT_TRANSFORMATION
+////////////////////////////////////////////////////////////////////////////////
+
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_SUPPORT_EXIF
+bool CxImage::RotateExif(int32_t orientation /* = 0 */)
+{
+ bool ret = true;
+ if (orientation <= 0)
+ orientation = info.ExifInfo.Orientation;
+ if (orientation == 3)
+ ret = Rotate180();
+ else if (orientation == 6)
+ ret = RotateRight();
+ else if (orientation == 8)
+ ret = RotateLeft();
+ else if (orientation == 5)
+ ret = RotateLeft();
+
+ info.ExifInfo.Orientation = 1;
+ return ret;
+}
+#endif //CXIMAGE_SUPPORT_EXIF
+
+////////////////////////////////////////////////////////////////////////////////
+bool CxImage::Rotate(float angle, CxImage* iDst)
+{
+ if (!pDib) return false;
+
+ if (fmod(angle,180.0f)==0.0f && fmod(angle,360.0f)!=0.0f)
+ return Rotate180(iDst);
+
+ // Copyright (c) 1996-1998 Ulrich von Zadow
+
+ // Negative the angle, because the y-axis is negative.
+ double ang = -angle*acos((float)0)/90;
+ int32_t newWidth, newHeight;
+ int32_t nWidth = GetWidth();
+ int32_t nHeight= GetHeight();
+ double cos_angle = cos(ang);
+ double sin_angle = sin(ang);
+
+ // Calculate the size of the new bitmap
+ POINT p1={0,0};
+ POINT p2={nWidth,0};
+ POINT p3={0,nHeight};
+ POINT p4={nWidth,nHeight};
+ CxPoint2 newP1,newP2,newP3,newP4, leftTop, rightTop, leftBottom, rightBottom;
+
+ newP1.x = (float)p1.x;
+ newP1.y = (float)p1.y;
+ newP2.x = (float)(p2.x*cos_angle - p2.y*sin_angle);
+ newP2.y = (float)(p2.x*sin_angle + p2.y*cos_angle);
+ newP3.x = (float)(p3.x*cos_angle - p3.y*sin_angle);
+ newP3.y = (float)(p3.x*sin_angle + p3.y*cos_angle);
+ newP4.x = (float)(p4.x*cos_angle - p4.y*sin_angle);
+ newP4.y = (float)(p4.x*sin_angle + p4.y*cos_angle);
+
+ leftTop.x = min(min(newP1.x,newP2.x),min(newP3.x,newP4.x));
+ leftTop.y = min(min(newP1.y,newP2.y),min(newP3.y,newP4.y));
+ rightBottom.x = max(max(newP1.x,newP2.x),max(newP3.x,newP4.x));
+ rightBottom.y = max(max(newP1.y,newP2.y),max(newP3.y,newP4.y));
+ leftBottom.x = leftTop.x;
+ leftBottom.y = rightBottom.y;
+ rightTop.x = rightBottom.x;
+ rightTop.y = leftTop.y;
+
+ newWidth = (int32_t) floor(0.5f + rightTop.x - leftTop.x);
+ newHeight= (int32_t) floor(0.5f + leftBottom.y - leftTop.y);
+ CxImage imgDest;
+ imgDest.CopyInfo(*this);
+ imgDest.Create(newWidth,newHeight,GetBpp(),GetType());
+ imgDest.SetPalette(GetPalette());
+
+#if CXIMAGE_SUPPORT_ALPHA
+ if(AlphaIsValid()) //MTA: Fix for rotation problem when the image has an alpha channel
+ {
+ imgDest.AlphaCreate();
+ imgDest.AlphaClear();
+ }
+#endif //CXIMAGE_SUPPORT_ALPHA
+
+ int32_t x,y,newX,newY,oldX,oldY;
+
+ if (head.biClrUsed==0){ //RGB
+ for (y = (int32_t)leftTop.y, newY = 0; y<=(int32_t)leftBottom.y; y++,newY++){
+ info.nProgress = (int32_t)(100*newY/newHeight);
+ if (info.nEscape) break;
+ for (x = (int32_t)leftTop.x, newX = 0; x<=(int32_t)rightTop.x; x++,newX++){
+ oldX = (int32_t)(x*cos_angle + y*sin_angle + 0.5);
+ oldY = (int32_t)(y*cos_angle - x*sin_angle + 0.5);
+ imgDest.SetPixelColor(newX,newY,GetPixelColor(oldX,oldY));
+#if CXIMAGE_SUPPORT_ALPHA
+ imgDest.AlphaSet(newX,newY,AlphaGet(oldX,oldY)); //MTA: copy the alpha value
+#endif //CXIMAGE_SUPPORT_ALPHA
+ }
+ }
+ } else { //PALETTE
+ for (y = (int32_t)leftTop.y, newY = 0; y<=(int32_t)leftBottom.y; y++,newY++){
+ info.nProgress = (int32_t)(100*newY/newHeight);
+ if (info.nEscape) break;
+ for (x = (int32_t)leftTop.x, newX = 0; x<=(int32_t)rightTop.x; x++,newX++){
+ oldX = (int32_t)(x*cos_angle + y*sin_angle + 0.5);
+ oldY = (int32_t)(y*cos_angle - x*sin_angle + 0.5);
+ imgDest.SetPixelIndex(newX,newY,GetPixelIndex(oldX,oldY));
+#if CXIMAGE_SUPPORT_ALPHA
+ imgDest.AlphaSet(newX,newY,AlphaGet(oldX,oldY)); //MTA: copy the alpha value
+#endif //CXIMAGE_SUPPORT_ALPHA
+ }
+ }
+ }
+ //select the destination
+ if (iDst) iDst->Transfer(imgDest);
+ else Transfer(imgDest);
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Rotates image around it's center.
+ * Method can use interpolation with paletted images, but does not change pallete, so results vary.
+ * (If you have only four colours in a palette, there's not much room for interpolation.)
+ *
+ * \param angle - angle in degrees (positive values rotate clockwise)
+ * \param *iDst - destination image (if null, this image is changed)
+ * \param inMethod - interpolation method used
+ * (IM_NEAREST_NEIGHBOUR produces aliasing (fast), IM_BILINEAR softens picture a bit (slower)
+ * IM_SHARPBICUBIC is slower and produces some halos...)
+ * \param ofMethod - overflow method (how to choose colour of pixels that have no source)
+ * \param replColor - replacement colour to use (OM_COLOR, OM_BACKGROUND with no background colour...)
+ * \param optimizeRightAngles - call faster methods for 90, 180, and 270 degree rotations. Faster methods
+ * are called for angles, where error (in location of corner pixels) is less
+ * than 0.25 pixels.
+ * \param bKeepOriginalSize - rotates the image without resizing.
+ *
+ * \author ***bd*** 2.2004
+ */
+bool CxImage::Rotate2(float angle,
+ CxImage *iDst,
+ InterpolationMethod inMethod,
+ OverflowMethod ofMethod,
+ RGBQUAD *replColor,
+ bool const optimizeRightAngles,
+ bool const bKeepOriginalSize)
+{
+ if (!pDib) return false; //no dib no go
+
+ if (fmod(angle,180.0f)==0.0f && fmod(angle,360.0f)!=0.0f)
+ return Rotate180(iDst);
+
+ double ang = -angle*acos(0.0f)/90.0f; //convert angle to radians and invert (positive angle performs clockwise rotation)
+ float cos_angle = (float) cos(ang); //these two are needed later (to rotate)
+ float sin_angle = (float) sin(ang);
+
+ //Calculate the size of the new bitmap (rotate corners of image)
+ CxPoint2 p[4]; //original corners of the image
+ p[0]=CxPoint2(-0.5f,-0.5f);
+ p[1]=CxPoint2(GetWidth()-0.5f,-0.5f);
+ p[2]=CxPoint2(-0.5f,GetHeight()-0.5f);
+ p[3]=CxPoint2(GetWidth()-0.5f,GetHeight()-0.5f);
+ CxPoint2 newp[4]; //rotated positions of corners
+ //(rotate corners)
+ if (bKeepOriginalSize){
+ for (int32_t i=0; i<4; i++) {
+ newp[i].x = p[i].x;
+ newp[i].y = p[i].y;
+ }//for
+ } else {
+ for (int32_t i=0; i<4; i++) {
+ newp[i].x = (p[i].x*cos_angle - p[i].y*sin_angle);
+ newp[i].y = (p[i].x*sin_angle + p[i].y*cos_angle);
+ }//for i
+
+ if (optimizeRightAngles) {
+ //For rotations of 90, -90 or 180 or 0 degrees, call faster routines
+ if (newp[3].Distance(CxPoint2(GetHeight()-0.5f, 0.5f-GetWidth())) < 0.25)
+ //rotation right for circa 90 degrees (diagonal pixels less than 0.25 pixel away from 90 degree rotation destination)
+ return RotateRight(iDst);
+ if (newp[3].Distance(CxPoint2(0.5f-GetHeight(), -0.5f+GetWidth())) < 0.25)
+ //rotation left for ~90 degrees
+ return RotateLeft(iDst);
+ if (newp[3].Distance(CxPoint2(0.5f-GetWidth(), 0.5f-GetHeight())) < 0.25)
+ //rotation left for ~180 degrees
+ return Rotate180(iDst);
+ if (newp[3].Distance(p[3]) < 0.25) {
+ //rotation not significant
+ if (iDst) iDst->Copy(*this); //copy image to iDst, if required
+ return true; //and we're done
+ }//if
+ }//if
+ }//if
+
+ //(read new dimensions from location of corners)
+ float minx = (float) min(min(newp[0].x,newp[1].x),min(newp[2].x,newp[3].x));
+ float miny = (float) min(min(newp[0].y,newp[1].y),min(newp[2].y,newp[3].y));
+ float maxx = (float) max(max(newp[0].x,newp[1].x),max(newp[2].x,newp[3].x));
+ float maxy = (float) max(max(newp[0].y,newp[1].y),max(newp[2].y,newp[3].y));
+ int32_t newWidth = (int32_t) floor(maxx-minx+0.5f);
+ int32_t newHeight= (int32_t) floor(maxy-miny+0.5f);
+ float ssx=((maxx+minx)- ((float) newWidth-1))/2.0f; //start for x
+ float ssy=((maxy+miny)- ((float) newHeight-1))/2.0f; //start for y
+
+ float newxcenteroffset = 0.5f * newWidth;
+ float newycenteroffset = 0.5f * newHeight;
+ if (bKeepOriginalSize){
+ ssx -= 0.5f * GetWidth();
+ ssy -= 0.5f * GetHeight();
+ }
+
+ //create destination image
+ CxImage imgDest;
+ imgDest.CopyInfo(*this);
+ imgDest.Create(newWidth,newHeight,GetBpp(),GetType());
+ imgDest.SetPalette(GetPalette());
+#if CXIMAGE_SUPPORT_ALPHA
+ if(AlphaIsValid()) imgDest.AlphaCreate(); //MTA: Fix for rotation problem when the image has an alpha channel
+#endif //CXIMAGE_SUPPORT_ALPHA
+
+ RGBQUAD rgb; //pixel colour
+ RGBQUAD rc;
+ if (replColor!=0)
+ rc=*replColor;
+ else {
+ rc.rgbRed=255; rc.rgbGreen=255; rc.rgbBlue=255; rc.rgbReserved=0;
+ }//if
+ float x,y; //destination location (float, with proper offset)
+ float origx, origy; //origin location
+ int32_t destx, desty; //destination location
+
+ y=ssy; //initialize y
+ if (!IsIndexed()){ //RGB24
+ //optimized RGB24 implementation (direct write to destination):
+ uint8_t *pxptr;
+#if CXIMAGE_SUPPORT_ALPHA
+ uint8_t *pxptra=0;
+#endif //CXIMAGE_SUPPORT_ALPHA
+ for (desty=0; desty<newHeight; desty++) {
+ info.nProgress = (int32_t)(100*desty/newHeight);
+ if (info.nEscape) break;
+ //initialize x
+ x=ssx;
+ //calculate pointer to first byte in row
+ pxptr=(uint8_t *)imgDest.BlindGetPixelPointer(0, desty);
+#if CXIMAGE_SUPPORT_ALPHA
+ //calculate pointer to first byte in row
+ if (AlphaIsValid()) pxptra=imgDest.AlphaGetPointer(0, desty);
+#endif //CXIMAGE_SUPPORT_ALPHA
+ for (destx=0; destx<newWidth; destx++) {
+ //get source pixel coordinate for current destination point
+ //origx = (cos_angle*(x-head.biWidth/2)+sin_angle*(y-head.biHeight/2))+newWidth/2;
+ //origy = (cos_angle*(y-head.biHeight/2)-sin_angle*(x-head.biWidth/2))+newHeight/2;
+ origx = cos_angle*x+sin_angle*y;
+ origy = cos_angle*y-sin_angle*x;
+ if (bKeepOriginalSize){
+ origx += newxcenteroffset;
+ origy += newycenteroffset;
+ }
+ rgb = GetPixelColorInterpolated(origx, origy, inMethod, ofMethod, &rc); //get interpolated colour value
+ //copy alpha and colour value to destination
+#if CXIMAGE_SUPPORT_ALPHA
+ if (pxptra) *pxptra++ = rgb.rgbReserved;
+#endif //CXIMAGE_SUPPORT_ALPHA
+ *pxptr++ = rgb.rgbBlue;
+ *pxptr++ = rgb.rgbGreen;
+ *pxptr++ = rgb.rgbRed;
+ x++;
+ }//for destx
+ y++;
+ }//for desty
+ } else {
+ //non-optimized implementation for paletted images
+ for (desty=0; desty<newHeight; desty++) {
+ info.nProgress = (int32_t)(100*desty/newHeight);
+ if (info.nEscape) break;
+ x=ssx;
+ for (destx=0; destx<newWidth; destx++) {
+ //get source pixel coordinate for current destination point
+ origx=(cos_angle*x+sin_angle*y);
+ origy=(cos_angle*y-sin_angle*x);
+ if (bKeepOriginalSize){
+ origx += newxcenteroffset;
+ origy += newycenteroffset;
+ }
+ rgb = GetPixelColorInterpolated(origx, origy, inMethod, ofMethod, &rc);
+ //***!*** SetPixelColor is slow for palleted images
+#if CXIMAGE_SUPPORT_ALPHA
+ if (AlphaIsValid())
+ imgDest.SetPixelColor(destx,desty,rgb,true);
+ else
+#endif //CXIMAGE_SUPPORT_ALPHA
+ imgDest.SetPixelColor(destx,desty,rgb,false);
+ x++;
+ }//for destx
+ y++;
+ }//for desty
+ }
+ //select the destination
+
+ if (iDst) iDst->Transfer(imgDest);
+ else Transfer(imgDest);
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+bool CxImage::Rotate180(CxImage* iDst)
+{
+ if (!pDib) return false;
+
+ int32_t wid = GetWidth();
+ int32_t ht = GetHeight();
+
+ CxImage imgDest;
+ imgDest.CopyInfo(*this);
+ imgDest.Create(wid,ht,GetBpp(),GetType());
+ imgDest.SetPalette(GetPalette());
+
+#if CXIMAGE_SUPPORT_ALPHA
+ if (AlphaIsValid()) imgDest.AlphaCreate();
+#endif //CXIMAGE_SUPPORT_ALPHA
+
+ int32_t x,y,y2;
+ for (y = 0; y < ht; y++){
+ info.nProgress = (int32_t)(100*y/ht); //<Anatoly Ivasyuk>
+ y2=ht-y-1;
+ for (x = 0; x < wid; x++){
+ if(head.biClrUsed==0)//RGB
+ imgDest.SetPixelColor(wid-x-1, y2, BlindGetPixelColor(x, y));
+ else //PALETTE
+ imgDest.SetPixelIndex(wid-x-1, y2, BlindGetPixelIndex(x, y));
+
+#if CXIMAGE_SUPPORT_ALPHA
+ if (AlphaIsValid()) imgDest.AlphaSet(wid-x-1, y2,BlindAlphaGet(x, y));
+#endif //CXIMAGE_SUPPORT_ALPHA
+
+ }
+ }
+
+ //select the destination
+ if (iDst) iDst->Transfer(imgDest);
+ else Transfer(imgDest);
+ return true;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Resizes the image. mode can be 0 for slow (bilinear) method ,
+ * 1 for fast (nearest pixel) method, or 2 for accurate (bicubic spline interpolation) method.
+ * The function is faster with 24 and 1 bpp images, slow for 4 bpp images and slowest for 8 bpp images.
+ */
+bool CxImage::Resample(int32_t newx, int32_t newy, int32_t mode, CxImage* iDst)
+{
+ if (newx==0 || newy==0) return false;
+
+ if (head.biWidth==newx && head.biHeight==newy){
+ if (iDst) iDst->Copy(*this);
+ return true;
+ }
+
+ float xScale, yScale, fX, fY;
+ xScale = (float)head.biWidth / (float)newx;
+ yScale = (float)head.biHeight / (float)newy;
+
+ CxImage newImage;
+ newImage.CopyInfo(*this);
+ newImage.Create(newx,newy,head.biBitCount,GetType());
+ newImage.SetPalette(GetPalette());
+ if (!newImage.IsValid()){
+ strcpy(info.szLastError,newImage.GetLastError());
+ return false;
+ }
+
+ switch (mode) {
+ case 1: // nearest pixel
+ {
+ for(int32_t y=0; y<newy; y++){
+ info.nProgress = (int32_t)(100*y/newy);
+ if (info.nEscape) break;
+ fY = y * yScale;
+ for(int32_t x=0; x<newx; x++){
+ fX = x * xScale;
+ newImage.SetPixelColor(x,y,GetPixelColor((int32_t)fX,(int32_t)fY));
+ }
+ }
+ break;
+ }
+ case 2: // bicubic interpolation by Blake L. Carlson <blake-carlson(at)uiowa(dot)edu
+ {
+ float f_x, f_y, a, b, rr, gg, bb, r1, r2;
+ int32_t i_x, i_y, xx, yy;
+ RGBQUAD rgb;
+ uint8_t* iDst;
+ for(int32_t y=0; y<newy; y++){
+ info.nProgress = (int32_t)(100*y/newy);
+ if (info.nEscape) break;
+ f_y = (float) y * yScale - 0.5f;
+ i_y = (int32_t) floor(f_y);
+ a = f_y - (float)floor(f_y);
+ for(int32_t x=0; x<newx; x++){
+ f_x = (float) x * xScale - 0.5f;
+ i_x = (int32_t) floor(f_x);
+ b = f_x - (float)floor(f_x);
+
+ rr = gg = bb = 0.0f;
+ for(int32_t m=-1; m<3; m++) {
+ r1 = KernelBSpline((float) m - a);
+ yy = i_y+m;
+ if (yy<0) yy=0;
+ if (yy>=head.biHeight) yy = head.biHeight-1;
+ for(int32_t n=-1; n<3; n++) {
+ r2 = r1 * KernelBSpline(b - (float)n);
+ xx = i_x+n;
+ if (xx<0) xx=0;
+ if (xx>=head.biWidth) xx=head.biWidth-1;
+
+ if (head.biClrUsed){
+ rgb = GetPixelColor(xx,yy);
+ } else {
+ iDst = info.pImage + yy*info.dwEffWidth + xx*3;
+ rgb.rgbBlue = *iDst++;
+ rgb.rgbGreen= *iDst++;
+ rgb.rgbRed = *iDst;
+ }
+
+ rr += rgb.rgbRed * r2;
+ gg += rgb.rgbGreen * r2;
+ bb += rgb.rgbBlue * r2;
+ }
+ }
+
+ if (head.biClrUsed)
+ newImage.SetPixelColor(x,y,RGB(rr,gg,bb));
+ else {
+ iDst = newImage.info.pImage + y*newImage.info.dwEffWidth + x*3;
+ *iDst++ = (uint8_t)bb;
+ *iDst++ = (uint8_t)gg;
+ *iDst = (uint8_t)rr;
+ }
+
+ }
+ }
+ break;
+ }
+ default: // bilinear interpolation
+ if (!(head.biWidth>newx && head.biHeight>newy && head.biBitCount==24)) {
+ // (c) 1999 Steve McMahon (steve@dogma.demon.co.uk)
+ int32_t ifX, ifY, ifX1, ifY1, xmax, ymax;
+ float ir1, ir2, ig1, ig2, ib1, ib2, dx, dy;
+ uint8_t r,g,b;
+ RGBQUAD rgb1, rgb2, rgb3, rgb4;
+ xmax = head.biWidth-1;
+ ymax = head.biHeight-1;
+ for(int32_t y=0; y<newy; y++){
+ info.nProgress = (int32_t)(100*y/newy);
+ if (info.nEscape) break;
+ fY = y * yScale;
+ ifY = (int32_t)fY;
+ ifY1 = min(ymax, ifY+1);
+ dy = fY - ifY;
+ for(int32_t x=0; x<newx; x++){
+ fX = x * xScale;
+ ifX = (int32_t)fX;
+ ifX1 = min(xmax, ifX+1);
+ dx = fX - ifX;
+ // Interpolate using the four nearest pixels in the source
+ if (head.biClrUsed){
+ rgb1=GetPaletteColor(GetPixelIndex(ifX,ifY));
+ rgb2=GetPaletteColor(GetPixelIndex(ifX1,ifY));
+ rgb3=GetPaletteColor(GetPixelIndex(ifX,ifY1));
+ rgb4=GetPaletteColor(GetPixelIndex(ifX1,ifY1));
+ }
+ else {
+ uint8_t* iDst;
+ iDst = info.pImage + ifY*info.dwEffWidth + ifX*3;
+ rgb1.rgbBlue = *iDst++; rgb1.rgbGreen= *iDst++; rgb1.rgbRed =*iDst;
+ iDst = info.pImage + ifY*info.dwEffWidth + ifX1*3;
+ rgb2.rgbBlue = *iDst++; rgb2.rgbGreen= *iDst++; rgb2.rgbRed =*iDst;
+ iDst = info.pImage + ifY1*info.dwEffWidth + ifX*3;
+ rgb3.rgbBlue = *iDst++; rgb3.rgbGreen= *iDst++; rgb3.rgbRed =*iDst;
+ iDst = info.pImage + ifY1*info.dwEffWidth + ifX1*3;
+ rgb4.rgbBlue = *iDst++; rgb4.rgbGreen= *iDst++; rgb4.rgbRed =*iDst;
+ }
+ // Interplate in x direction:
+ ir1 = rgb1.rgbRed + (rgb3.rgbRed - rgb1.rgbRed) * dy;
+ ig1 = rgb1.rgbGreen + (rgb3.rgbGreen - rgb1.rgbGreen) * dy;
+ ib1 = rgb1.rgbBlue + (rgb3.rgbBlue - rgb1.rgbBlue) * dy;
+ ir2 = rgb2.rgbRed + (rgb4.rgbRed - rgb2.rgbRed) * dy;
+ ig2 = rgb2.rgbGreen + (rgb4.rgbGreen - rgb2.rgbGreen) * dy;
+ ib2 = rgb2.rgbBlue + (rgb4.rgbBlue - rgb2.rgbBlue) * dy;
+ // Interpolate in y:
+ r = (uint8_t)(ir1 + (ir2-ir1) * dx);
+ g = (uint8_t)(ig1 + (ig2-ig1) * dx);
+ b = (uint8_t)(ib1 + (ib2-ib1) * dx);
+ // Set output
+ newImage.SetPixelColor(x,y,RGB(r,g,b));
+ }
+ }
+ } else {
+ //high resolution shrink, thanks to Henrik Stellmann <henrik.stellmann@volleynet.de>
+ const int32_t ACCURACY = 1000;
+ int32_t i,j; // index for faValue
+ int32_t x,y; // coordinates in source image
+ uint8_t* pSource;
+ uint8_t* pDest = newImage.info.pImage;
+ int32_t* naAccu = new int32_t[3 * newx + 3];
+ int32_t* naCarry = new int32_t[3 * newx + 3];
+ int32_t* naTemp;
+ int32_t nWeightX,nWeightY;
+ float fEndX;
+ int32_t nScale = (int32_t)(ACCURACY * xScale * yScale);
+
+ memset(naAccu, 0, sizeof(int32_t) * 3 * newx);
+ memset(naCarry, 0, sizeof(int32_t) * 3 * newx);
+
+ int32_t u, v = 0; // coordinates in dest image
+ float fEndY = yScale - 1.0f;
+ for (y = 0; y < head.biHeight; y++){
+ info.nProgress = (int32_t)(100*y/head.biHeight); //<Anatoly Ivasyuk>
+ if (info.nEscape) break;
+ pSource = info.pImage + y * info.dwEffWidth;
+ u = i = 0;
+ fEndX = xScale - 1.0f;
+ if ((float)y < fEndY) { // complete source row goes into dest row
+ for (x = 0; x < head.biWidth; x++){
+ if ((float)x < fEndX){ // complete source pixel goes into dest pixel
+ for (j = 0; j < 3; j++) naAccu[i + j] += (*pSource++) * ACCURACY;
+ } else { // source pixel is splitted for 2 dest pixels
+ nWeightX = (int32_t)(((float)x - fEndX) * ACCURACY);
+ for (j = 0; j < 3; j++){
+ naAccu[i] += (ACCURACY - nWeightX) * (*pSource);
+ naAccu[3 + i++] += nWeightX * (*pSource++);
+ }
+ fEndX += xScale;
+ u++;
+ }
+ }
+ } else { // source row is splitted for 2 dest rows
+ nWeightY = (int32_t)(((float)y - fEndY) * ACCURACY);
+ for (x = 0; x < head.biWidth; x++){
+ if ((float)x < fEndX){ // complete source pixel goes into 2 pixel
+ for (j = 0; j < 3; j++){
+ naAccu[i + j] += ((ACCURACY - nWeightY) * (*pSource));
+ naCarry[i + j] += nWeightY * (*pSource++);
+ }
+ } else { // source pixel is splitted for 4 dest pixels
+ nWeightX = (int32_t)(((float)x - fEndX) * ACCURACY);
+ for (j = 0; j < 3; j++) {
+ naAccu[i] += ((ACCURACY - nWeightY) * (ACCURACY - nWeightX)) * (*pSource) / ACCURACY;
+ *pDest++ = (uint8_t)(naAccu[i] / nScale);
+ naCarry[i] += (nWeightY * (ACCURACY - nWeightX) * (*pSource)) / ACCURACY;
+ naAccu[i + 3] += ((ACCURACY - nWeightY) * nWeightX * (*pSource)) / ACCURACY;
+ naCarry[i + 3] = (nWeightY * nWeightX * (*pSource)) / ACCURACY;
+ i++;
+ pSource++;
+ }
+ fEndX += xScale;
+ u++;
+ }
+ }
+ if (u < newx){ // possibly not completed due to rounding errors
+ for (j = 0; j < 3; j++) *pDest++ = (uint8_t)(naAccu[i++] / nScale);
+ }
+ naTemp = naCarry;
+ naCarry = naAccu;
+ naAccu = naTemp;
+ memset(naCarry, 0, sizeof(int32_t) * 3); // need only to set first pixel zero
+ pDest = newImage.info.pImage + (++v * newImage.info.dwEffWidth);
+ fEndY += yScale;
+ }
+ }
+ if (v < newy){ // possibly not completed due to rounding errors
+ for (i = 0; i < 3 * newx; i++) *pDest++ = (uint8_t)(naAccu[i] / nScale);
+ }
+ delete [] naAccu;
+ delete [] naCarry;
+ }
+ }
+
+#if CXIMAGE_SUPPORT_ALPHA
+ if (AlphaIsValid()){
+ if (1 == mode){
+ newImage.AlphaCreate();
+ for(int32_t y=0; y<newy; y++){
+ fY = y * yScale;
+ for(int32_t x=0; x<newx; x++){
+ fX = x * xScale;
+ newImage.AlphaSet(x,y,AlphaGet((int32_t)fX,(int32_t)fY));
+ }
+ }
+ } else {
+ CxImage newAlpha;
+ AlphaSplit(&newAlpha);
+ newAlpha.Resample(newx, newy, mode);
+ newImage.AlphaSet(newAlpha);
+ }
+ }
+#endif //CXIMAGE_SUPPORT_ALPHA
+
+ //select the destination
+ if (iDst) iDst->Transfer(newImage);
+ else Transfer(newImage);
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * New simpler resample. Adds new interpolation methods and simplifies code (using GetPixelColorInterpolated
+ * and GetAreaColorInterpolated). It also (unlike old method) interpolates alpha layer.
+ *
+ * \param newx, newy - size of resampled image
+ * \param inMethod - interpolation method to use (see comments at GetPixelColorInterpolated)
+ * If image size is being reduced, averaging is used instead (or simultaneously with) inMethod.
+ * \param ofMethod - what to replace outside pixels by (only significant for bordering pixels of enlarged image)
+ * \param iDst - pointer to destination CxImage or NULL.
+ * \param disableAveraging - force no averaging when shrinking images (Produces aliasing.
+ * You probably just want to leave this off...)
+ *
+ * \author ***bd*** 2.2004
+ */
+bool CxImage::Resample2(
+ int32_t newx, int32_t newy,
+ InterpolationMethod const inMethod,
+ OverflowMethod const ofMethod,
+ CxImage* const iDst,
+ bool const disableAveraging)
+{
+ if (newx<=0 || newy<=0 || !pDib) return false;
+
+ if (head.biWidth==newx && head.biHeight==newy) {
+ //image already correct size (just copy and return)
+ if (iDst) iDst->Copy(*this);
+ return true;
+ }//if
+
+ //calculate scale of new image (less than 1 for enlarge)
+ float xScale, yScale;
+ xScale = (float)head.biWidth / (float)newx;
+ yScale = (float)head.biHeight / (float)newy;
+
+ //create temporary destination image
+ CxImage newImage;
+ newImage.CopyInfo(*this);
+ newImage.Create(newx,newy,head.biBitCount,GetType());
+ newImage.SetPalette(GetPalette());
+ if (!newImage.IsValid()){
+ strcpy(info.szLastError,newImage.GetLastError());
+ return false;
+ }
+
+ //and alpha channel if required
+#if CXIMAGE_SUPPORT_ALPHA
+ if (AlphaIsValid()) newImage.AlphaCreate();
+ uint8_t *pxptra = 0; // destination alpha data
+#endif
+
+ float sX, sY; //source location
+ int32_t dX,dY; //destination pixel (int32_t value)
+ if ((xScale<=1 && yScale<=1) || disableAveraging) {
+ //image is being enlarged (or interpolation on demand)
+ if (!IsIndexed()) {
+ //RGB24 image (optimized version with direct writes)
+ RGBQUAD q; //pixel colour
+ uint8_t *pxptr; //pointer to destination pixel
+ for(dY=0; dY<newy; dY++){
+ info.nProgress = (int32_t)(100*dY/newy);
+ if (info.nEscape) break;
+ sY = (dY + 0.5f) * yScale - 0.5f;
+ pxptr=(uint8_t*)(newImage.BlindGetPixelPointer(0,dY));
+#if CXIMAGE_SUPPORT_ALPHA
+ pxptra=newImage.AlphaGetPointer(0,dY);
+#endif
+ for(dX=0; dX<newx; dX++){
+ sX = (dX + 0.5f) * xScale - 0.5f;
+ q=GetPixelColorInterpolated(sX,sY,inMethod,ofMethod,0);
+ *pxptr++=q.rgbBlue;
+ *pxptr++=q.rgbGreen;
+ *pxptr++=q.rgbRed;
+#if CXIMAGE_SUPPORT_ALPHA
+ if (pxptra) *pxptra++=q.rgbReserved;
+#endif
+ }//for dX
+ }//for dY
+ } else {
+ //enlarge paletted image. Slower method.
+ for(dY=0; dY<newy; dY++){
+ info.nProgress = (int32_t)(100*dY/newy);
+ if (info.nEscape) break;
+ sY = (dY + 0.5f) * yScale - 0.5f;
+ for(dX=0; dX<newx; dX++){
+ sX = (dX + 0.5f) * xScale - 0.5f;
+ newImage.SetPixelColor(dX,dY,GetPixelColorInterpolated(sX,sY,inMethod,ofMethod,0),true);
+ }//for x
+ }//for y
+ }//if
+ } else {
+ //image size is being reduced (averaging enabled)
+ for(dY=0; dY<newy; dY++){
+ info.nProgress = (int32_t)(100*dY/newy); if (info.nEscape) break;
+ sY = (dY+0.5f) * yScale - 0.5f;
+ for(dX=0; dX<newx; dX++){
+ sX = (dX+0.5f) * xScale - 0.5f;
+ newImage.SetPixelColor(dX,dY,GetAreaColorInterpolated(sX, sY, xScale, yScale, inMethod, ofMethod,0),true);
+ }//for x
+ }//for y
+ }//if
+
+#if CXIMAGE_SUPPORT_ALPHA
+ if (AlphaIsValid() && pxptra == 0){
+ for(int32_t y=0; y<newy; y++){
+ dY = (int32_t)(y * yScale);
+ for(int32_t x=0; x<newx; x++){
+ dX = (int32_t)(x * xScale);
+ newImage.AlphaSet(x,y,AlphaGet(dX,dY));
+ }
+ }
+ }
+#endif //CXIMAGE_SUPPORT_ALPHA
+
+ //copy new image to the destination
+ if (iDst)
+ iDst->Transfer(newImage);
+ else
+ Transfer(newImage);
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Reduces the number of bits per pixel to nbit (1, 4 or 8).
+ * ppal points to a valid palette for the final image; if not supplied the function will use a standard palette.
+ * ppal is not necessary for reduction to 1 bpp.
+ */
+bool CxImage::DecreaseBpp(uint32_t nbit, bool errordiffusion, RGBQUAD* ppal, uint32_t clrimportant)
+{
+ if (!pDib) return false;
+ if (head.biBitCount < nbit){
+ strcpy(info.szLastError,"DecreaseBpp: target BPP greater than source BPP");
+ return false;
+ }
+ if (head.biBitCount == nbit){
+ if (clrimportant==0) return true;
+ if (head.biClrImportant && (head.biClrImportant<clrimportant)) return true;
+ }
+
+ int32_t er,eg,eb;
+ RGBQUAD c,ce;
+
+ CxImage tmp;
+ tmp.CopyInfo(*this);
+ tmp.Create(head.biWidth,head.biHeight,(uint16_t)nbit,info.dwType);
+ if (clrimportant) tmp.SetClrImportant(clrimportant);
+ if (!tmp.IsValid()){
+ strcpy(info.szLastError,tmp.GetLastError());
+ return false;
+ }
+
+#if CXIMAGE_SUPPORT_SELECTION
+ tmp.SelectionCopy(*this);
+#endif //CXIMAGE_SUPPORT_SELECTION
+
+#if CXIMAGE_SUPPORT_ALPHA
+ tmp.AlphaCopy(*this);
+#endif //CXIMAGE_SUPPORT_ALPHA
+
+ if (ppal) {
+ if (clrimportant) {
+ tmp.SetPalette(ppal,clrimportant);
+ } else {
+ tmp.SetPalette(ppal,1<<tmp.head.biBitCount);
+ }
+ } else {
+ tmp.SetStdPalette();
+ }
+
+ for (int32_t y=0;y<head.biHeight;y++){
+ if (info.nEscape) break;
+ info.nProgress = (int32_t)(100*y/head.biHeight);
+ for (int32_t x=0;x<head.biWidth;x++){
+ if (!errordiffusion){
+ tmp.BlindSetPixelColor(x,y,BlindGetPixelColor(x,y));
+ } else {
+ c = BlindGetPixelColor(x,y);
+ tmp.BlindSetPixelColor(x,y,c);
+
+ ce = tmp.BlindGetPixelColor(x,y);
+ er=(int32_t)c.rgbRed - (int32_t)ce.rgbRed;
+ eg=(int32_t)c.rgbGreen - (int32_t)ce.rgbGreen;
+ eb=(int32_t)c.rgbBlue - (int32_t)ce.rgbBlue;
+
+ c = GetPixelColor(x+1,y);
+ c.rgbRed = (uint8_t)min(255L,max(0L,(int32_t)c.rgbRed + ((er*7)/16)));
+ c.rgbGreen = (uint8_t)min(255L,max(0L,(int32_t)c.rgbGreen + ((eg*7)/16)));
+ c.rgbBlue = (uint8_t)min(255L,max(0L,(int32_t)c.rgbBlue + ((eb*7)/16)));
+ SetPixelColor(x+1,y,c);
+ int32_t coeff=1;
+ for(int32_t i=-1; i<2; i++){
+ switch(i){
+ case -1:
+ coeff=2; break;
+ case 0:
+ coeff=4; break;
+ case 1:
+ coeff=1; break;
+ }
+ c = GetPixelColor(x+i,y+1);
+ c.rgbRed = (uint8_t)min(255L,max(0L,(int32_t)c.rgbRed + ((er * coeff)/16)));
+ c.rgbGreen = (uint8_t)min(255L,max(0L,(int32_t)c.rgbGreen + ((eg * coeff)/16)));
+ c.rgbBlue = (uint8_t)min(255L,max(0L,(int32_t)c.rgbBlue + ((eb * coeff)/16)));
+ SetPixelColor(x+i,y+1,c);
+ }
+ }
+ }
+ }
+
+ Transfer(tmp);
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Converts the image to B&W using the desired method :
+ * - 0 = Floyd-Steinberg
+ * - 1 = Ordered-Dithering (4x4)
+ * - 2 = Burkes
+ * - 3 = Stucki
+ * - 4 = Jarvis-Judice-Ninke
+ * - 5 = Sierra
+ * - 6 = Stevenson-Arce
+ * - 7 = Bayer (4x4 ordered dithering)
+ * - 8 = Bayer (8x8 ordered dithering)
+ * - 9 = Bayer (16x16 ordered dithering)
+ */
+bool CxImage::Dither(int32_t method)
+{
+ if (!pDib) return false;
+ if (head.biBitCount == 1) return true;
+
+ GrayScale();
+
+ CxImage tmp;
+ tmp.CopyInfo(*this);
+ tmp.Create(head.biWidth, head.biHeight, 1, info.dwType);
+ if (!tmp.IsValid()){
+ strcpy(info.szLastError,tmp.GetLastError());
+ return false;
+ }
+
+#if CXIMAGE_SUPPORT_SELECTION
+ tmp.SelectionCopy(*this);
+#endif //CXIMAGE_SUPPORT_SELECTION
+
+#if CXIMAGE_SUPPORT_ALPHA
+ tmp.AlphaCopy(*this);
+#endif //CXIMAGE_SUPPORT_ALPHA
+
+ switch (method){
+ case 1:
+ {
+ // Multi-Level Ordered-Dithering by Kenny Hoff (Oct. 12, 1995)
+ #define dth_NumRows 4
+ #define dth_NumCols 4
+ #define dth_NumIntensityLevels 2
+ #define dth_NumRowsLessOne (dth_NumRows-1)
+ #define dth_NumColsLessOne (dth_NumCols-1)
+ #define dth_RowsXCols (dth_NumRows*dth_NumCols)
+ #define dth_MaxIntensityVal 255
+ #define dth_MaxDitherIntensityVal (dth_NumRows*dth_NumCols*(dth_NumIntensityLevels-1))
+
+ int32_t DitherMatrix[dth_NumRows][dth_NumCols] = {{0,8,2,10}, {12,4,14,6}, {3,11,1,9}, {15,7,13,5} };
+
+ uint8_t Intensity[dth_NumIntensityLevels] = { 0,1 }; // 2 LEVELS B/W
+ //uint8_t Intensity[NumIntensityLevels] = { 0,255 }; // 2 LEVELS
+ //uint8_t Intensity[NumIntensityLevels] = { 0,127,255 }; // 3 LEVELS
+ //uint8_t Intensity[NumIntensityLevels] = { 0,85,170,255 }; // 4 LEVELS
+ //uint8_t Intensity[NumIntensityLevels] = { 0,63,127,191,255 }; // 5 LEVELS
+ //uint8_t Intensity[NumIntensityLevels] = { 0,51,102,153,204,255 }; // 6 LEVELS
+ //uint8_t Intensity[NumIntensityLevels] = { 0,42,85,127,170,213,255 }; // 7 LEVELS
+ //uint8_t Intensity[NumIntensityLevels] = { 0,36,73,109,145,182,219,255 }; // 8 LEVELS
+ int32_t DitherIntensity, DitherMatrixIntensity, Offset, DeviceIntensity;
+ uint8_t DitherValue;
+
+ for (int32_t y=0;y<head.biHeight;y++){
+ info.nProgress = (int32_t)(100*y/head.biHeight);
+ if (info.nEscape) break;
+ for (int32_t x=0;x<head.biWidth;x++){
+
+ DeviceIntensity = BlindGetPixelIndex(x,y);
+ DitherIntensity = DeviceIntensity*dth_MaxDitherIntensityVal/dth_MaxIntensityVal;
+ DitherMatrixIntensity = DitherIntensity % dth_RowsXCols;
+ Offset = DitherIntensity / dth_RowsXCols;
+ if (DitherMatrix[y&dth_NumRowsLessOne][x&dth_NumColsLessOne] < DitherMatrixIntensity)
+ DitherValue = Intensity[1+Offset];
+ else
+ DitherValue = Intensity[0+Offset];
+
+ tmp.BlindSetPixelIndex(x,y,DitherValue);
+ }
+ }
+ break;
+ }
+ case 2:
+ {
+ //Burkes error diffusion (Thanks to Franco Gerevini)
+ int32_t TotalCoeffSum = 32;
+ int32_t error, nlevel, coeff=1;
+ uint8_t level;
+
+ for (int32_t y = 0; y < head.biHeight; y++) {
+ info.nProgress = (int32_t)(100 * y / head.biHeight);
+ if (info.nEscape)
+ break;
+ for (int32_t x = 0; x < head.biWidth; x++) {
+ level = BlindGetPixelIndex(x, y);
+ if (level > 128) {
+ tmp.SetPixelIndex(x, y, 1);
+ error = level - 255;
+ } else {
+ tmp.SetPixelIndex(x, y, 0);
+ error = level;
+ }
+
+ nlevel = GetPixelIndex(x + 1, y) + (error * 8) / TotalCoeffSum;
+ level = (uint8_t)min(255, max(0, (int32_t)nlevel));
+ SetPixelIndex(x + 1, y, level);
+ nlevel = GetPixelIndex(x + 2, y) + (error * 4) / TotalCoeffSum;
+ level = (uint8_t)min(255, max(0, (int32_t)nlevel));
+ SetPixelIndex(x + 2, y, level);
+ int32_t i;
+ for (i = -2; i < 3; i++) {
+ switch (i) {
+ case -2:
+ coeff = 2;
+ break;
+ case -1:
+ coeff = 4;
+ break;
+ case 0:
+ coeff = 8;
+ break;
+ case 1:
+ coeff = 4;
+ break;
+ case 2:
+ coeff = 2;
+ break;
+ }
+ nlevel = GetPixelIndex(x + i, y + 1) + (error * coeff) / TotalCoeffSum;
+ level = (uint8_t)min(255, max(0, (int32_t)nlevel));
+ SetPixelIndex(x + i, y + 1, level);
+ }
+ }
+ }
+ break;
+ }
+ case 3:
+ {
+ //Stucki error diffusion (Thanks to Franco Gerevini)
+ int32_t TotalCoeffSum = 42;
+ int32_t error, nlevel, coeff=1;
+ uint8_t level;
+
+ for (int32_t y = 0; y < head.biHeight; y++) {
+ info.nProgress = (int32_t)(100 * y / head.biHeight);
+ if (info.nEscape)
+ break;
+ for (int32_t x = 0; x < head.biWidth; x++) {
+ level = BlindGetPixelIndex(x, y);
+ if (level > 128) {
+ tmp.SetPixelIndex(x, y, 1);
+ error = level - 255;
+ } else {
+ tmp.SetPixelIndex(x, y, 0);
+ error = level;
+ }
+
+ nlevel = GetPixelIndex(x + 1, y) + (error * 8) / TotalCoeffSum;
+ level = (uint8_t)min(255, max(0, (int32_t)nlevel));
+ SetPixelIndex(x + 1, y, level);
+ nlevel = GetPixelIndex(x + 2, y) + (error * 4) / TotalCoeffSum;
+ level = (uint8_t)min(255, max(0, (int32_t)nlevel));
+ SetPixelIndex(x + 2, y, level);
+ int32_t i;
+ for (i = -2; i < 3; i++) {
+ switch (i) {
+ case -2:
+ coeff = 2;
+ break;
+ case -1:
+ coeff = 4;
+ break;
+ case 0:
+ coeff = 8;
+ break;
+ case 1:
+ coeff = 4;
+ break;
+ case 2:
+ coeff = 2;
+ break;
+ }
+ nlevel = GetPixelIndex(x + i, y + 1) + (error * coeff) / TotalCoeffSum;
+ level = (uint8_t)min(255, max(0, (int32_t)nlevel));
+ SetPixelIndex(x + i, y + 1, level);
+ }
+ for (i = -2; i < 3; i++) {
+ switch (i) {
+ case -2:
+ coeff = 1;
+ break;
+ case -1:
+ coeff = 2;
+ break;
+ case 0:
+ coeff = 4;
+ break;
+ case 1:
+ coeff = 2;
+ break;
+ case 2:
+ coeff = 1;
+ break;
+ }
+ nlevel = GetPixelIndex(x + i, y + 2) + (error * coeff) / TotalCoeffSum;
+ level = (uint8_t)min(255, max(0, (int32_t)nlevel));
+ SetPixelIndex(x + i, y + 2, level);
+ }
+ }
+ }
+ break;
+ }
+ case 4:
+ {
+ //Jarvis, Judice and Ninke error diffusion (Thanks to Franco Gerevini)
+ int32_t TotalCoeffSum = 48;
+ int32_t error, nlevel, coeff=1;
+ uint8_t level;
+
+ for (int32_t y = 0; y < head.biHeight; y++) {
+ info.nProgress = (int32_t)(100 * y / head.biHeight);
+ if (info.nEscape)
+ break;
+ for (int32_t x = 0; x < head.biWidth; x++) {
+ level = BlindGetPixelIndex(x, y);
+ if (level > 128) {
+ tmp.SetPixelIndex(x, y, 1);
+ error = level - 255;
+ } else {
+ tmp.SetPixelIndex(x, y, 0);
+ error = level;
+ }
+
+ nlevel = GetPixelIndex(x + 1, y) + (error * 7) / TotalCoeffSum;
+ level = (uint8_t)min(255, max(0, (int32_t)nlevel));
+ SetPixelIndex(x + 1, y, level);
+ nlevel = GetPixelIndex(x + 2, y) + (error * 5) / TotalCoeffSum;
+ level = (uint8_t)min(255, max(0, (int32_t)nlevel));
+ SetPixelIndex(x + 2, y, level);
+ int32_t i;
+ for (i = -2; i < 3; i++) {
+ switch (i) {
+ case -2:
+ coeff = 3;
+ break;
+ case -1:
+ coeff = 5;
+ break;
+ case 0:
+ coeff = 7;
+ break;
+ case 1:
+ coeff = 5;
+ break;
+ case 2:
+ coeff = 3;
+ break;
+ }
+ nlevel = GetPixelIndex(x + i, y + 1) + (error * coeff) / TotalCoeffSum;
+ level = (uint8_t)min(255, max(0, (int32_t)nlevel));
+ SetPixelIndex(x + i, y + 1, level);
+ }
+ for (i = -2; i < 3; i++) {
+ switch (i) {
+ case -2:
+ coeff = 1;
+ break;
+ case -1:
+ coeff = 3;
+ break;
+ case 0:
+ coeff = 5;
+ break;
+ case 1:
+ coeff = 3;
+ break;
+ case 2:
+ coeff = 1;
+ break;
+ }
+ nlevel = GetPixelIndex(x + i, y + 2) + (error * coeff) / TotalCoeffSum;
+ level = (uint8_t)min(255, max(0, (int32_t)nlevel));
+ SetPixelIndex(x + i, y + 2, level);
+ }
+ }
+ }
+ break;
+ }
+ case 5:
+ {
+ //Sierra error diffusion (Thanks to Franco Gerevini)
+ int32_t TotalCoeffSum = 32;
+ int32_t error, nlevel, coeff=1;
+ uint8_t level;
+
+ for (int32_t y = 0; y < head.biHeight; y++) {
+ info.nProgress = (int32_t)(100 * y / head.biHeight);
+ if (info.nEscape)
+ break;
+ for (int32_t x = 0; x < head.biWidth; x++) {
+ level = BlindGetPixelIndex(x, y);
+ if (level > 128) {
+ tmp.SetPixelIndex(x, y, 1);
+ error = level - 255;
+ } else {
+ tmp.SetPixelIndex(x, y, 0);
+ error = level;
+ }
+
+ nlevel = GetPixelIndex(x + 1, y) + (error * 5) / TotalCoeffSum;
+ level = (uint8_t)min(255, max(0, (int32_t)nlevel));
+ SetPixelIndex(x + 1, y, level);
+ nlevel = GetPixelIndex(x + 2, y) + (error * 3) / TotalCoeffSum;
+ level = (uint8_t)min(255, max(0, (int32_t)nlevel));
+ SetPixelIndex(x + 2, y, level);
+ int32_t i;
+ for (i = -2; i < 3; i++) {
+ switch (i) {
+ case -2:
+ coeff = 2;
+ break;
+ case -1:
+ coeff = 4;
+ break;
+ case 0:
+ coeff = 5;
+ break;
+ case 1:
+ coeff = 4;
+ break;
+ case 2:
+ coeff = 2;
+ break;
+ }
+ nlevel = GetPixelIndex(x + i, y + 1) + (error * coeff) / TotalCoeffSum;
+ level = (uint8_t)min(255, max(0, (int32_t)nlevel));
+ SetPixelIndex(x + i, y + 1, level);
+ }
+ for (i = -1; i < 2; i++) {
+ switch (i) {
+ case -1:
+ coeff = 2;
+ break;
+ case 0:
+ coeff = 3;
+ break;
+ case 1:
+ coeff = 2;
+ break;
+ }
+ nlevel = GetPixelIndex(x + i, y + 2) + (error * coeff) / TotalCoeffSum;
+ level = (uint8_t)min(255, max(0, (int32_t)nlevel));
+ SetPixelIndex(x + i, y + 2, level);
+ }
+ }
+ }
+ break;
+ }
+ case 6:
+ {
+ //Stevenson and Arce error diffusion (Thanks to Franco Gerevini)
+ int32_t TotalCoeffSum = 200;
+ int32_t error, nlevel;
+ uint8_t level;
+
+ for (int32_t y = 0; y < head.biHeight; y++) {
+ info.nProgress = (int32_t)(100 * y / head.biHeight);
+ if (info.nEscape)
+ break;
+ for (int32_t x = 0; x < head.biWidth; x++) {
+ level = BlindGetPixelIndex(x, y);
+ if (level > 128) {
+ tmp.SetPixelIndex(x, y, 1);
+ error = level - 255;
+ } else {
+ tmp.SetPixelIndex(x, y, 0);
+ error = level;
+ }
+
+ int32_t tmp_index_x = x + 2;
+ int32_t tmp_index_y = y;
+ int32_t tmp_coeff = 32;
+ nlevel = GetPixelIndex(tmp_index_x, tmp_index_y) + (error * tmp_coeff) / TotalCoeffSum;
+ level = (uint8_t)min(255, max(0, (int32_t)nlevel));
+ SetPixelIndex(tmp_index_x, tmp_index_y, level);
+
+ tmp_index_x = x - 3;
+ tmp_index_y = y + 1;
+ tmp_coeff = 12;
+ nlevel = GetPixelIndex(tmp_index_x, tmp_index_y) + (error * tmp_coeff) / TotalCoeffSum;
+ level = (uint8_t)min(255, max(0, (int32_t)nlevel));
+ SetPixelIndex(tmp_index_x, tmp_index_y, level);
+
+ tmp_index_x = x - 1;
+ tmp_coeff = 26;
+ nlevel = GetPixelIndex(tmp_index_x, tmp_index_y) + (error * tmp_coeff) / TotalCoeffSum;
+ level = (uint8_t)min(255, max(0, (int32_t)nlevel));
+ SetPixelIndex(tmp_index_x, tmp_index_y, level);
+
+ tmp_index_x = x + 1;
+ tmp_coeff = 30;
+ nlevel = GetPixelIndex(tmp_index_x, tmp_index_y) + (error * tmp_coeff) / TotalCoeffSum;
+ level = (uint8_t)min(255, max(0, (int32_t)nlevel));
+ SetPixelIndex(tmp_index_x, tmp_index_y, level);
+
+ tmp_index_x = x + 3;
+ tmp_coeff = 16;
+ nlevel = GetPixelIndex(tmp_index_x, tmp_index_y) + (error * tmp_coeff) / TotalCoeffSum;
+ level = (uint8_t)min(255, max(0, (int32_t)nlevel));
+ SetPixelIndex(tmp_index_x, tmp_index_y, level);
+
+ tmp_index_x = x - 2;
+ tmp_index_y = y + 2;
+ tmp_coeff = 12;
+ nlevel = GetPixelIndex(tmp_index_x, tmp_index_y) + (error * tmp_coeff) / TotalCoeffSum;
+ level = (uint8_t)min(255, max(0, (int32_t)nlevel));
+ SetPixelIndex(tmp_index_x, tmp_index_y, level);
+
+ tmp_index_x = x;
+ tmp_coeff = 26;
+ nlevel = GetPixelIndex(tmp_index_x, tmp_index_y) + (error * tmp_coeff) / TotalCoeffSum;
+ level = (uint8_t)min(255, max(0, (int32_t)nlevel));
+ SetPixelIndex(tmp_index_x, tmp_index_y, level);
+
+ tmp_index_x = x + 2;
+ tmp_coeff = 12;
+ nlevel = GetPixelIndex(tmp_index_x, tmp_index_y) + (error * tmp_coeff) / TotalCoeffSum;
+ level = (uint8_t)min(255, max(0, (int32_t)nlevel));
+ SetPixelIndex(tmp_index_x, tmp_index_y, level);
+
+ tmp_index_x = x - 3;
+ tmp_index_y = y + 3;
+ tmp_coeff = 5;
+ nlevel = GetPixelIndex(tmp_index_x, tmp_index_y) + (error * tmp_coeff) / TotalCoeffSum;
+ level = (uint8_t)min(255, max(0, (int32_t)nlevel));
+ SetPixelIndex(tmp_index_x, tmp_index_y, level);
+
+ tmp_index_x = x - 1;
+ tmp_coeff = 12;
+ nlevel = GetPixelIndex(tmp_index_x, tmp_index_y) + (error * tmp_coeff) / TotalCoeffSum;
+ level = (uint8_t)min(255, max(0, (int32_t)nlevel));
+ SetPixelIndex(tmp_index_x, tmp_index_y, level);
+
+ tmp_index_x = x + 1;
+ tmp_coeff = 12;
+ nlevel = GetPixelIndex(tmp_index_x, tmp_index_y) + (error * tmp_coeff) / TotalCoeffSum;
+ level = (uint8_t)min(255, max(0, (int32_t)nlevel));
+ SetPixelIndex(tmp_index_x, tmp_index_y, level);
+
+ tmp_index_x = x + 3;
+ tmp_coeff = 5;
+ nlevel = GetPixelIndex(tmp_index_x, tmp_index_y) + (error * tmp_coeff) / TotalCoeffSum;
+ level = (uint8_t)min(255, max(0, (int32_t)nlevel));
+ SetPixelIndex(tmp_index_x, tmp_index_y, level);
+ }
+ }
+ break;
+ }
+ case 7:
+ {
+ // Bayer ordered dither
+ int32_t order = 4;
+ //create Bayer matrix
+ if (order>4) order = 4;
+ int32_t size = (1 << (2*order));
+ uint8_t* Bmatrix = (uint8_t*) malloc(size * sizeof(uint8_t));
+ for(int32_t i = 0; i < size; i++) {
+ int32_t n = order;
+ int32_t x = i / n;
+ int32_t y = i % n;
+ int32_t dither = 0;
+ while (n-- > 0){
+ dither = (((dither<<1)|((x&1) ^ (y&1)))<<1) | (y&1);
+ x >>= 1;
+ y >>= 1;
+ }
+ Bmatrix[i] = (uint8_t)(dither);
+ }
+
+ int32_t scale = max(0,(8-2*order));
+ int32_t level;
+ for (int32_t y=0;y<head.biHeight;y++){
+ info.nProgress = (int32_t)(100*y/head.biHeight);
+ if (info.nEscape) break;
+ for (int32_t x=0;x<head.biWidth;x++){
+ level = BlindGetPixelIndex(x,y) >> scale;
+ if(level > Bmatrix[ (x % order) + order * (y % order) ]){
+ tmp.SetPixelIndex(x,y,1);
+ } else {
+ tmp.SetPixelIndex(x,y,0);
+ }
+ }
+ }
+
+ free(Bmatrix);
+
+ break;
+ }
+ case 8:
+ {
+ // 8x8 Bayer ordered dither
+ int32_t const pattern8x8[8][8] = {
+ { 0, 32, 8, 40, 2, 34, 10, 42}, /* 8x8 Bayer ordered dithering */
+ {48, 16, 56, 24, 50, 18, 58, 26}, /* pattern. Each input pixel */
+ {12, 44, 4, 36, 14, 46, 6, 38}, /* is scaled to the 0..63 range */
+ {60, 28, 52, 20, 62, 30, 54, 22}, /* before looking in this table */
+ { 3, 35, 11, 43, 1, 33, 9, 41}, /* to determine the action. */
+ {51, 19, 59, 27, 49, 17, 57, 25},
+ {15, 47, 7, 39, 13, 45, 5, 37},
+ {63, 31, 55, 23, 61, 29, 53, 21} };
+
+ for (int32_t y=0;y<head.biHeight;y++){
+ info.nProgress = (int32_t)(100*y/head.biHeight);
+ if (info.nEscape) break;
+ for (int32_t x=0;x<head.biWidth;x++){
+ int32_t level = BlindGetPixelIndex(x,y) >> 2;
+ if(level && level >= pattern8x8[x & 7][y & 7]){
+ tmp.SetPixelIndex(x,y,1);
+ } else {
+ tmp.SetPixelIndex(x,y,0);
+ }
+ }
+ }
+ break;
+ }
+ case 9:
+ {
+ // 16x16 Bayer ordered dither
+ int32_t const pattern16x16[16][16] = {
+ { 1,235, 59,219, 15,231, 55,215, 2,232, 56,216, 12,228, 52,212},
+ { 129, 65,187,123,143, 79,183,119,130, 66,184,120,140, 76,180,116},
+ { 33,193, 17,251, 47,207, 31,247, 34,194, 18,248, 44,204, 28,244},
+ { 161, 97,145, 81,175,111,159, 95,162, 98,146, 82,172,108,156, 92},
+ { 9,225, 49,209, 5,239, 63,223, 10,226, 50,210, 6,236, 60,220},
+ { 137, 73,177,113,133, 69,191,127,138, 74,178,114,134, 70,188,124},
+ { 41,201, 25,241, 37,197, 21,255, 42,202, 26,242, 38,198, 22,252},
+ { 169,105,153, 89,165,101,149, 85,170,106,154, 90,166,102,150, 86},
+ { 3,233, 57,217, 13,229, 53,213, 0,234, 58,218, 14,230, 54,214},
+ { 131, 67,185,121,141, 77,181,117,128, 64,186,122,142, 78,182,118},
+ { 35,195, 19,249, 45,205, 29,245, 32,192, 16,250, 46,206, 30,246},
+ { 163, 99,147, 83,173,109,157, 93,160, 96,144, 80,174,110,158, 94},
+ { 11,227, 51,211, 7,237, 61,221, 8,224, 48,208, 4,238, 62,222},
+ { 139, 75,179,115,135, 71,189,125,136, 72,176,112,132, 68,190,126},
+ { 43,203, 27,243, 39,199, 23,253, 40,200, 24,240, 36,196, 20,254},
+ { 171,107,155, 91,167,103,151, 87,168,104,152, 88,164,100,148, 84}
+ };
+
+ for (int32_t y=0;y<head.biHeight;y++){
+ info.nProgress = (int32_t)(100*y/head.biHeight);
+ if (info.nEscape) break;
+ for (int32_t x=0;x<head.biWidth;x++){
+ if (BlindGetPixelIndex(x,y) > pattern16x16[x & 15][y & 15]){
+ tmp.SetPixelIndex(x,y,1);
+ } else {
+ tmp.SetPixelIndex(x,y,0);
+ }
+ }
+ }
+ break;
+ }
+ default:
+ {
+ // Floyd-Steinberg error diffusion (Thanks to Steve McMahon)
+ int32_t error,nlevel,coeff=1;
+ uint8_t level;
+
+ for (int32_t y=0;y<head.biHeight;y++){
+ info.nProgress = (int32_t)(100*y/head.biHeight);
+ if (info.nEscape) break;
+ for (int32_t x=0;x<head.biWidth;x++){
+
+ level = BlindGetPixelIndex(x,y);
+ if (level > 128){
+ tmp.SetPixelIndex(x,y,1);
+ error = level-255;
+ } else {
+ tmp.SetPixelIndex(x,y,0);
+ error = level;
+ }
+
+ nlevel = GetPixelIndex(x+1,y) + (error * 7)/16;
+ level = (uint8_t)min(255,max(0,(int32_t)nlevel));
+ SetPixelIndex(x+1,y,level);
+ for(int32_t i=-1; i<2; i++){
+ switch(i){
+ case -1:
+ coeff=3; break;
+ case 0:
+ coeff=5; break;
+ case 1:
+ coeff=1; break;
+ }
+ nlevel = GetPixelIndex(x+i,y+1) + (error * coeff)/16;
+ level = (uint8_t)min(255,max(0,(int32_t)nlevel));
+ SetPixelIndex(x+i,y+1,level);
+ }
+ }
+ }
+ }
+ }
+
+ tmp.SetPaletteColor(0,0,0,0);
+ tmp.SetPaletteColor(1,255,255,255);
+ Transfer(tmp);
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * CropRotatedRectangle
+ * \param topx,topy : topmost and leftmost point of the rectangle
+ (topmost, and if there are 2 topmost points, the left one)
+ * \param width : size of the right hand side of rect, from (topx,topy) roundwalking clockwise
+ * \param height : size of the left hand side of rect, from (topx,topy) roundwalking clockwise
+ * \param angle : angle of the right hand side of rect, from (topx,topy)
+ * \param iDst : pointer to destination image (if 0, this image is modified)
+ * \author [VATI]
+ */
+bool CxImage::CropRotatedRectangle( int32_t topx, int32_t topy, int32_t width, int32_t height, float angle, CxImage* iDst)
+{
+ if (!pDib) return false;
+
+
+ int32_t startx,starty,endx,endy;
+ double cos_angle = cos(angle/*/57.295779513082320877*/);
+ double sin_angle = sin(angle/*/57.295779513082320877*/);
+
+ // if there is nothing special, call the original Crop():
+ if ( fabs(angle)<0.0002 )
+ return Crop( topx, topy, topx+width, topy+height, iDst);
+
+ startx = min(topx, topx - (int32_t)(sin_angle*(double)height));
+ endx = topx + (int32_t)(cos_angle*(double)width);
+ endy = topy + (int32_t)(cos_angle*(double)height + sin_angle*(double)width);
+ // check: corners of the rectangle must be inside
+ if ( IsInside( startx, topy )==false ||
+ IsInside( endx, endy ) == false )
+ return false;
+
+ // first crop to bounding rectangle
+ CxImage tmp(*this, true, false, true);
+ // tmp.Copy(*this, true, false, true);
+ if (!tmp.IsValid()){
+ strcpy(info.szLastError,tmp.GetLastError());
+ return false;
+ }
+ if (!tmp.Crop( startx, topy, endx, endy)){
+ strcpy(info.szLastError,tmp.GetLastError());
+ return false;
+ }
+
+ // the midpoint of the image now became the same as the midpoint of the rectangle
+ // rotate new image with minus angle amount
+ if ( false == tmp.Rotate( (float)(-angle*57.295779513082320877) ) ) // Rotate expects angle in degrees
+ return false;
+
+ // crop rotated image to the original selection rectangle
+ endx = (tmp.head.biWidth+width)/2;
+ startx = (tmp.head.biWidth-width)/2;
+ starty = (tmp.head.biHeight+height)/2;
+ endy = (tmp.head.biHeight-height)/2;
+ if ( false == tmp.Crop( startx, starty, endx, endy ) )
+ return false;
+
+ if (iDst) iDst->Transfer(tmp);
+ else Transfer(tmp);
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+bool CxImage::Crop(const RECT& rect, CxImage* iDst)
+{
+ return Crop(rect.left, rect.top, rect.right, rect.bottom, iDst);
+}
+////////////////////////////////////////////////////////////////////////////////
+bool CxImage::Crop(int32_t left, int32_t top, int32_t right, int32_t bottom, CxImage* iDst)
+{
+ if (!pDib) return false;
+
+ int32_t startx = max(0L,min(left,head.biWidth));
+ int32_t endx = max(0L,min(right,head.biWidth));
+ int32_t starty = head.biHeight - max(0L,min(top,head.biHeight));
+ int32_t endy = head.biHeight - max(0L,min(bottom,head.biHeight));
+
+ if (startx==endx || starty==endy) return false;
+
+ if (startx>endx) {int32_t tmp=startx; startx=endx; endx=tmp;}
+ if (starty>endy) {int32_t tmp=starty; starty=endy; endy=tmp;}
+
+ CxImage tmp;
+ tmp.CopyInfo(*this);
+ tmp.Create(endx-startx,endy-starty,head.biBitCount,info.dwType);
+ if (!tmp.IsValid()){
+ strcpy(info.szLastError,tmp.GetLastError());
+ return false;
+ }
+
+ tmp.SetPalette(GetPalette(),head.biClrUsed);
+ tmp.info.nBkgndIndex = info.nBkgndIndex;
+ tmp.info.nBkgndColor = info.nBkgndColor;
+
+ switch (head.biBitCount) {
+ case 1:
+ case 4:
+ {
+ for(int32_t y=starty, yd=0; y<endy; y++, yd++){
+ info.nProgress = (int32_t)(100*(y-starty)/(endy-starty)); //<Anatoly Ivasyuk>
+ for(int32_t x=startx, xd=0; x<endx; x++, xd++){
+ tmp.SetPixelIndex(xd,yd,GetPixelIndex(x,y));
+ }
+ }
+ break;
+ }
+ case 8:
+ case 24:
+ {
+ int32_t linelen = tmp.head.biWidth * tmp.head.biBitCount >> 3;
+ uint8_t* pDest = tmp.info.pImage;
+ uint8_t* pSrc = info.pImage + starty * info.dwEffWidth + (startx*head.biBitCount >> 3);
+ for(int32_t y=starty; y<endy; y++){
+ info.nProgress = (int32_t)(100*(y-starty)/(endy-starty)); //<Anatoly Ivasyuk>
+ memcpy(pDest,pSrc,linelen);
+ pDest+=tmp.info.dwEffWidth;
+ pSrc+=info.dwEffWidth;
+ }
+ }
+ }
+
+#if CXIMAGE_SUPPORT_ALPHA
+ if (AlphaIsValid()){ //<oboolo>
+ tmp.AlphaCreate();
+ if (!tmp.AlphaIsValid()) return false;
+ uint8_t* pDest = tmp.pAlpha;
+ uint8_t* pSrc = pAlpha + startx + starty*head.biWidth;
+ for (int32_t y=starty; y<endy; y++){
+ memcpy(pDest,pSrc,endx-startx);
+ pDest+=tmp.head.biWidth;
+ pSrc+=head.biWidth;
+ }
+ }
+#endif //CXIMAGE_SUPPORT_ALPHA
+
+ //select the destination
+ if (iDst) iDst->Transfer(tmp);
+ else Transfer(tmp);
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * \param xgain, ygain : can be from 0 to 1.
+ * \param xpivot, ypivot : is the center of the transformation.
+ * \param bEnableInterpolation : if true, enables bilinear interpolation.
+ * \return true if everything is ok
+ */
+bool CxImage::Skew(float xgain, float ygain, int32_t xpivot, int32_t ypivot, bool bEnableInterpolation)
+{
+ if (!pDib) return false;
+ float nx,ny;
+
+ CxImage tmp(*this);
+ if (!tmp.IsValid()){
+ strcpy(info.szLastError,tmp.GetLastError());
+ return false;
+ }
+
+ int32_t xmin,xmax,ymin,ymax;
+ if (pSelection){
+ xmin = info.rSelectionBox.left; xmax = info.rSelectionBox.right;
+ ymin = info.rSelectionBox.bottom; ymax = info.rSelectionBox.top;
+ } else {
+ xmin = ymin = 0;
+ xmax = head.biWidth; ymax=head.biHeight;
+ }
+ for(int32_t y=ymin; y<ymax; y++){
+ info.nProgress = (int32_t)(100*(y-ymin)/(ymax-ymin));
+ if (info.nEscape) break;
+ for(int32_t x=xmin; x<xmax; x++){
+#if CXIMAGE_SUPPORT_SELECTION
+ if (BlindSelectionIsInside(x,y))
+#endif //CXIMAGE_SUPPORT_SELECTION
+ {
+ nx = x + (xgain*(y - ypivot));
+ ny = y + (ygain*(x - xpivot));
+#if CXIMAGE_SUPPORT_INTERPOLATION
+ if (bEnableInterpolation){
+ tmp.SetPixelColor(x,y,GetPixelColorInterpolated(nx, ny, CxImage::IM_BILINEAR, CxImage::OM_BACKGROUND),true);
+ } else
+#endif //CXIMAGE_SUPPORT_INTERPOLATION
+ {
+ if (head.biClrUsed==0){
+ tmp.SetPixelColor(x,y,GetPixelColor((int32_t)nx,(int32_t)ny));
+ } else {
+ tmp.SetPixelIndex(x,y,GetPixelIndex((int32_t)nx,(int32_t)ny));
+ }
+#if CXIMAGE_SUPPORT_ALPHA
+ tmp.AlphaSet(x,y,AlphaGet((int32_t)nx,(int32_t)ny));
+#endif //CXIMAGE_SUPPORT_ALPHA
+ }
+ }
+ }
+ }
+ Transfer(tmp);
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Expands the borders.
+ * \param left, top, right, bottom = additional dimensions, should be greater than 0.
+ * \param canvascolor = border color. canvascolor.rgbReserved will set the alpha channel (if any) in the border.
+ * \param iDst = pointer to destination image (if it's 0, this image is modified)
+ * \return true if everything is ok
+ * \author [Colin Urquhart]; changes [DP]
+ */
+bool CxImage::Expand(int32_t left, int32_t top, int32_t right, int32_t bottom, RGBQUAD canvascolor, CxImage* iDst)
+{
+ if (!pDib) return false;
+
+ if ((left < 0) || (right < 0) || (bottom < 0) || (top < 0)) return false;
+
+ int32_t newWidth = head.biWidth + left + right;
+ int32_t newHeight = head.biHeight + top + bottom;
+
+ right = left + head.biWidth - 1;
+ top = bottom + head.biHeight - 1;
+
+ CxImage tmp;
+ tmp.CopyInfo(*this);
+ if (!tmp.Create(newWidth, newHeight, head.biBitCount, info.dwType)){
+ strcpy(info.szLastError,tmp.GetLastError());
+ return false;
+ }
+
+ tmp.SetPalette(GetPalette(),head.biClrUsed);
+
+ switch (head.biBitCount) {
+ case 1:
+ case 4:
+ {
+ uint8_t pixel = tmp.GetNearestIndex(canvascolor);
+ for(int32_t y=0; y < newHeight; y++){
+ info.nProgress = (int32_t)(100*y/newHeight);
+ for(int32_t x=0; x < newWidth; x++){
+ if ((y < bottom) || (y > top) || (x < left) || (x > right)) {
+ tmp.SetPixelIndex(x,y, pixel);
+ } else {
+ tmp.SetPixelIndex(x,y,GetPixelIndex(x-left,y-bottom));
+ }
+ }
+ }
+ break;
+ }
+ case 8:
+ case 24:
+ {
+ if (head.biBitCount == 8) {
+ uint8_t pixel = tmp.GetNearestIndex( canvascolor);
+ memset(tmp.info.pImage, pixel, + (tmp.info.dwEffWidth * newHeight));
+ } else {
+ for (int32_t y = 0; y < newHeight; ++y) {
+ uint8_t *pDest = tmp.info.pImage + (y * tmp.info.dwEffWidth);
+ for (int32_t x = 0; x < newWidth; ++x) {
+ *pDest++ = canvascolor.rgbBlue;
+ *pDest++ = canvascolor.rgbGreen;
+ *pDest++ = canvascolor.rgbRed;
+ }
+ }
+ }
+
+ uint8_t* pDest = tmp.info.pImage + (tmp.info.dwEffWidth * bottom) + (left*(head.biBitCount >> 3));
+ uint8_t* pSrc = info.pImage;
+ for(int32_t y=bottom; y <= top; y++){
+ info.nProgress = (int32_t)(100*y/(1 + top - bottom));
+ memcpy(pDest,pSrc,(head.biBitCount >> 3) * (right - left + 1));
+ pDest+=tmp.info.dwEffWidth;
+ pSrc+=info.dwEffWidth;
+ }
+ }
+ }
+
+#if CXIMAGE_SUPPORT_SELECTION
+ if (SelectionIsValid()){
+ if (!tmp.SelectionCreate())
+ return false;
+ uint8_t* pSrc = SelectionGetPointer();
+ uint8_t* pDst = tmp.SelectionGetPointer(left,bottom);
+ for(int32_t y=bottom; y <= top; y++){
+ memcpy(pDst,pSrc, (right - left + 1));
+ pSrc+=head.biWidth;
+ pDst+=tmp.head.biWidth;
+ }
+ tmp.info.rSelectionBox.left = info.rSelectionBox.left + left;
+ tmp.info.rSelectionBox.right = info.rSelectionBox.right + left;
+ tmp.info.rSelectionBox.top = info.rSelectionBox.top + bottom;
+ tmp.info.rSelectionBox.bottom = info.rSelectionBox.bottom + bottom;
+ }
+#endif //CXIMAGE_SUPPORT_SELECTION
+
+#if CXIMAGE_SUPPORT_ALPHA
+ if (AlphaIsValid()){
+ if (!tmp.AlphaCreate())
+ return false;
+ tmp.AlphaSet(canvascolor.rgbReserved);
+ uint8_t* pSrc = AlphaGetPointer();
+ uint8_t* pDst = tmp.AlphaGetPointer(left,bottom);
+ for(int32_t y=bottom; y <= top; y++){
+ memcpy(pDst,pSrc, (right - left + 1));
+ pSrc+=head.biWidth;
+ pDst+=tmp.head.biWidth;
+ }
+ }
+#endif //CXIMAGE_SUPPORT_ALPHA
+
+ //select the destination
+ if (iDst) iDst->Transfer(tmp);
+ else Transfer(tmp);
+
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+bool CxImage::Expand(int32_t newx, int32_t newy, RGBQUAD canvascolor, CxImage* iDst)
+{
+ //thanks to <Colin Urquhart>
+
+ if (!pDib) return false;
+
+ if ((newx < head.biWidth) || (newy < head.biHeight)) return false;
+
+ int32_t nAddLeft = (newx - head.biWidth) / 2;
+ int32_t nAddTop = (newy - head.biHeight) / 2;
+
+ return Expand(nAddLeft, nAddTop, newx - (head.biWidth + nAddLeft), newy - (head.biHeight + nAddTop), canvascolor, iDst);
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Resamples the image with the correct aspect ratio, and fills the borders.
+ * \param newx, newy = thumbnail size.
+ * \param canvascolor = border color.
+ * \param iDst = pointer to destination image (if it's 0, this image is modified).
+ * \return true if everything is ok.
+ * \author [Colin Urquhart]
+ */
+bool CxImage::Thumbnail(int32_t newx, int32_t newy, RGBQUAD canvascolor, CxImage* iDst)
+{
+ if (!pDib) return false;
+
+ if ((newx <= 0) || (newy <= 0)) return false;
+
+ CxImage tmp(*this);
+ if (!tmp.IsValid()){
+ strcpy(info.szLastError,tmp.GetLastError());
+ return false;
+ }
+
+ // determine whether we need to shrink the image
+ if ((head.biWidth > newx) || (head.biHeight > newy)) {
+ float fScale;
+ float fAspect = (float) newx / (float) newy;
+ if (fAspect * head.biHeight > head.biWidth) {
+ fScale = (float) newy / head.biHeight;
+ } else {
+ fScale = (float) newx / head.biWidth;
+ }
+ tmp.Resample((int32_t) (fScale * head.biWidth), (int32_t) (fScale * head.biHeight), 0);
+ }
+
+ // expand the frame
+ tmp.Expand(newx, newy, canvascolor);
+
+ //select the destination
+ if (iDst) iDst->Transfer(tmp);
+ else Transfer(tmp);
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Perform circle_based transformations.
+ * \param type - for different transformations
+ * - 0 for normal (proturberant) FishEye
+ * - 1 for reverse (concave) FishEye
+ * - 2 for Swirle
+ * - 3 for Cilinder mirror
+ * - 4 for bathroom
+ *
+ * \param rmax - effect radius. If 0, the whole image is processed
+ * \param Koeff - only for swirle
+ * \author Arkadiy Olovyannikov ark(at)msun(dot)ru
+ */
+bool CxImage::CircleTransform(int32_t type,int32_t rmax,float Koeff)
+{
+ if (!pDib) return false;
+
+ int32_t nx,ny;
+ double angle,radius,rnew;
+
+ CxImage tmp(*this);
+ if (!tmp.IsValid()){
+ strcpy(info.szLastError,tmp.GetLastError());
+ return false;
+ }
+
+ int32_t xmin,xmax,ymin,ymax,xmid,ymid;
+ if (pSelection){
+ xmin = info.rSelectionBox.left; xmax = info.rSelectionBox.right;
+ ymin = info.rSelectionBox.bottom; ymax = info.rSelectionBox.top;
+ } else {
+ xmin = ymin = 0;
+ xmax = head.biWidth; ymax=head.biHeight;
+ }
+
+ xmid = (int32_t) (tmp.GetWidth()/2);
+ ymid = (int32_t) (tmp.GetHeight()/2);
+
+ if (!rmax) rmax=(int32_t)sqrt((float)((xmid-xmin)*(xmid-xmin)+(ymid-ymin)*(ymid-ymin)));
+ if (Koeff==0.0f) Koeff=1.0f;
+
+ for(int32_t y=ymin; y<ymax; y++){
+ info.nProgress = (int32_t)(100*(y-ymin)/(ymax-ymin));
+ if (info.nEscape) break;
+ for(int32_t x=xmin; x<xmax; x++){
+#if CXIMAGE_SUPPORT_SELECTION
+ if (BlindSelectionIsInside(x,y))
+#endif //CXIMAGE_SUPPORT_SELECTION
+ {
+ nx=xmid-x;
+ ny=ymid-y;
+ radius=sqrt((float)(nx*nx+ny*ny));
+ if (radius<rmax) {
+ angle=atan2((double)ny,(double)nx);
+ if (type==0) rnew=radius*radius/rmax;
+ else if (type==1) rnew=sqrt(radius*rmax);
+ else if (type==2) {rnew=radius;angle += radius / Koeff;}
+ else rnew = 1; // potentially uninitialized
+ if (type<3){
+ nx = xmid + (int32_t)(rnew * cos(angle));
+ ny = ymid - (int32_t)(rnew * sin(angle));
+ }
+ else if (type==3){
+ nx = (int32_t)fabs((angle*xmax/6.2831852));
+ ny = (int32_t)fabs((radius*ymax/rmax));
+ }
+ else {
+ nx=x+(x%32)-16;
+ ny=y;
+ }
+// nx=max(xmin,min(nx,xmax));
+// ny=max(ymin,min(ny,ymax));
+ }
+ else { nx=-1;ny=-1;}
+ if (head.biClrUsed==0){
+ tmp.SetPixelColor(x,y,GetPixelColor(nx,ny));
+ } else {
+ tmp.SetPixelIndex(x,y,GetPixelIndex(nx,ny));
+ }
+#if CXIMAGE_SUPPORT_ALPHA
+ tmp.AlphaSet(x,y,AlphaGet(nx,ny));
+#endif //CXIMAGE_SUPPORT_ALPHA
+ }
+ }
+ }
+ Transfer(tmp);
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Faster way to almost properly shrink image. Algorithm produces results comparable with "high resoultion shrink"
+ * when resulting image is much smaller (that would be 3 times or more) than original. When
+ * resulting image is only slightly smaller, results are closer to nearest pixel.
+ * This algorithm works by averaging, but it does not calculate fractions of pixels. It adds whole
+ * source pixels to the best destionation. It is not geometrically "correct".
+ * It's main advantage over "high" resulution shrink is speed, so it's useful, when speed is most
+ * important (preview thumbnails, "map" view, ...).
+ * Method is optimized for RGB24 images.
+ *
+ * \param newx, newy - size of destination image (must be smaller than original!)
+ * \param iDst - pointer to destination image (if it's 0, this image is modified)
+ * \param bChangeBpp - flag points to change result image bpp (if it's true, this result image bpp = 24 (useful for B/W image thumbnails))
+ *
+ * \return true if everything is ok
+ * \author [bd], 9.2004; changes [Artiom Mirolubov], 1.2005
+ */
+bool CxImage::QIShrink(int32_t newx, int32_t newy, CxImage* const iDst, bool bChangeBpp)
+{
+ if (!pDib) return false;
+
+ if (newx>head.biWidth || newy>head.biHeight) {
+ //let me repeat... this method can't enlarge image
+ strcpy(info.szLastError,"QIShrink can't enlarge image");
+ return false;
+ }
+
+ if (newx==head.biWidth && newy==head.biHeight) {
+ //image already correct size (just copy and return)
+ if (iDst) iDst->Copy(*this);
+ return true;
+ }//if
+
+ //create temporary destination image
+ CxImage newImage;
+ newImage.CopyInfo(*this);
+ newImage.Create(newx,newy,(bChangeBpp)?24:head.biBitCount,GetType());
+ newImage.SetPalette(GetPalette());
+ if (!newImage.IsValid()){
+ strcpy(info.szLastError,newImage.GetLastError());
+ return false;
+ }
+
+ //and alpha channel if required
+#if CXIMAGE_SUPPORT_ALPHA
+ if (AlphaIsValid()) newImage.AlphaCreate();
+#endif
+
+ const int32_t oldx = head.biWidth;
+ const int32_t oldy = head.biHeight;
+
+ int32_t accuCellSize = 4;
+#if CXIMAGE_SUPPORT_ALPHA
+ uint8_t *alphaPtr;
+ if (AlphaIsValid()) accuCellSize=5;
+#endif
+
+ uint32_t *accu = new uint32_t[newx*accuCellSize]; //array for suming pixels... one pixel for every destination column
+ uint32_t *accuPtr; //pointer for walking through accu
+ //each cell consists of blue, red, green component and count of pixels summed in this cell
+ memset(accu, 0, newx * accuCellSize * sizeof(uint32_t)); //clear accu
+
+ if (!IsIndexed()) {
+ //RGB24 version with pointers
+ uint8_t *destPtr, *srcPtr, *destPtrS, *srcPtrS; //destination and source pixel, and beginnings of current row
+ srcPtrS=(uint8_t*)BlindGetPixelPointer(0,0);
+ destPtrS=(uint8_t*)newImage.BlindGetPixelPointer(0,0);
+ int32_t ex=0, ey=0; //ex and ey replace division...
+ int32_t dy=0;
+ //(we just add pixels, until by adding newx or newy we get a number greater than old size... then
+ // it's time to move to next pixel)
+
+ for(int32_t y=0; y<oldy; y++){ //for all source rows
+ info.nProgress = (int32_t)(100*y/oldy); if (info.nEscape) break;
+ ey += newy;
+ ex = 0; //restart with ex = 0
+ accuPtr=accu; //restart from beginning of accu
+ srcPtr=srcPtrS; //and from new source line
+#if CXIMAGE_SUPPORT_ALPHA
+ alphaPtr = AlphaGetPointer(0, y);
+#endif
+
+ for(int32_t x=0; x<oldx; x++){ //for all source columns
+ ex += newx;
+ *accuPtr += *(srcPtr++); //add current pixel to current accu slot
+ *(accuPtr+1) += *(srcPtr++);
+ *(accuPtr+2) += *(srcPtr++);
+ (*(accuPtr+3)) ++;
+#if CXIMAGE_SUPPORT_ALPHA
+ if (alphaPtr) *(accuPtr+4) += *(alphaPtr++);
+#endif
+ if (ex>oldx) { //when we reach oldx, it's time to move to new slot
+ accuPtr += accuCellSize;
+ ex -= oldx; //(substract oldx from ex and resume from there on)
+ }//if (ex overflow)
+ }//for x
+
+ if (ey>=oldy) { //now when this happens
+ ey -= oldy; //it's time to move to new destination row
+ destPtr = destPtrS; //reset pointers to proper initial values
+ accuPtr = accu;
+#if CXIMAGE_SUPPORT_ALPHA
+ alphaPtr = newImage.AlphaGetPointer(0, dy++);
+#endif
+ for (int32_t k=0; k<newx; k++) { //copy accu to destination row (divided by number of pixels in each slot)
+ *(destPtr++) = (uint8_t)(*(accuPtr) / *(accuPtr+3));
+ *(destPtr++) = (uint8_t)(*(accuPtr+1) / *(accuPtr+3));
+ *(destPtr++) = (uint8_t)(*(accuPtr+2) / *(accuPtr+3));
+#if CXIMAGE_SUPPORT_ALPHA
+ if (alphaPtr) *(alphaPtr++) = (uint8_t)(*(accuPtr+4) / *(accuPtr+3));
+#endif
+ accuPtr += accuCellSize;
+ }//for k
+ memset(accu, 0, newx * accuCellSize * sizeof(uint32_t)); //clear accu
+ destPtrS += newImage.info.dwEffWidth;
+ }//if (ey overflow)
+
+ srcPtrS += info.dwEffWidth; //next round we start from new source row
+ }//for y
+ } else {
+ //standard version with GetPixelColor...
+ int32_t ex=0, ey=0; //ex and ey replace division...
+ int32_t dy=0;
+ //(we just add pixels, until by adding newx or newy we get a number greater than old size... then
+ // it's time to move to next pixel)
+ RGBQUAD rgb;
+
+ for(int32_t y=0; y<oldy; y++){ //for all source rows
+ info.nProgress = (int32_t)(100*y/oldy); if (info.nEscape) break;
+ ey += newy;
+ ex = 0; //restart with ex = 0
+ accuPtr=accu; //restart from beginning of accu
+ for(int32_t x=0; x<oldx; x++){ //for all source columns
+ ex += newx;
+ rgb = GetPixelColor(x, y, true);
+ *accuPtr += rgb.rgbBlue; //add current pixel to current accu slot
+ *(accuPtr+1) += rgb.rgbRed;
+ *(accuPtr+2) += rgb.rgbGreen;
+ (*(accuPtr+3)) ++;
+#if CXIMAGE_SUPPORT_ALPHA
+ if (pAlpha) *(accuPtr+4) += rgb.rgbReserved;
+#endif
+ if (ex>oldx) { //when we reach oldx, it's time to move to new slot
+ accuPtr += accuCellSize;
+ ex -= oldx; //(substract oldx from ex and resume from there on)
+ }//if (ex overflow)
+ }//for x
+
+ if (ey>=oldy) { //now when this happens
+ ey -= oldy; //it's time to move to new destination row
+ accuPtr = accu;
+ for (int32_t dx=0; dx<newx; dx++) { //copy accu to destination row (divided by number of pixels in each slot)
+ rgb.rgbBlue = (uint8_t)(*(accuPtr) / *(accuPtr+3));
+ rgb.rgbRed = (uint8_t)(*(accuPtr+1) / *(accuPtr+3));
+ rgb.rgbGreen= (uint8_t)(*(accuPtr+2) / *(accuPtr+3));
+#if CXIMAGE_SUPPORT_ALPHA
+ if (pAlpha) rgb.rgbReserved = (uint8_t)(*(accuPtr+4) / *(accuPtr+3));
+#endif
+ newImage.SetPixelColor(dx, dy, rgb, pAlpha!=0);
+ accuPtr += accuCellSize;
+ }//for dx
+ memset(accu, 0, newx * accuCellSize * sizeof(uint32_t)); //clear accu
+ dy++;
+ }//if (ey overflow)
+ }//for y
+ }//if
+
+ delete [] accu; //delete helper array
+
+ //copy new image to the destination
+ if (iDst)
+ iDst->Transfer(newImage);
+ else
+ Transfer(newImage);
+ return true;
+
+}
+
+////////////////////////////////////////////////////////////////////////////////
+#endif //CXIMAGE_SUPPORT_TRANSFORMATION
diff --git a/smelt/sdl/CxImage/ximawbmp.cpp b/smelt/sdl/CxImage/ximawbmp.cpp new file mode 100644 index 0000000..7ba5d00 --- /dev/null +++ b/smelt/sdl/CxImage/ximawbmp.cpp @@ -0,0 +1,134 @@ +/*
+ * File: ximawbmp.cpp
+ * Purpose: Platform Independent WBMP Image Class Loader and Writer
+ * 12/Jul/2002 Davide Pizzolato - www.xdp.it
+ * CxImage version 7.0.0 31/Dec/2010
+ */
+
+#include "ximawbmp.h"
+
+#if CXIMAGE_SUPPORT_WBMP
+
+#include "ximaiter.h"
+
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_SUPPORT_DECODE
+////////////////////////////////////////////////////////////////////////////////
+bool CxImageWBMP::Decode(CxFile *hFile)
+{
+ if (hFile == NULL) return false;
+
+ WBMPHEADER wbmpHead;
+
+ cx_try
+ {
+ ReadOctet(hFile, &wbmpHead.Type);
+
+ uint32_t dat;
+ ReadOctet(hFile, &dat);
+ wbmpHead.FixHeader = (uint8_t)dat;
+
+ ReadOctet(hFile, &wbmpHead.ImageWidth);
+ ReadOctet(hFile, &wbmpHead.ImageHeight);
+
+ if (hFile->Eof())
+ cx_throw("Not a WBMP");
+
+ if (wbmpHead.Type != 0)
+ cx_throw("Unsupported WBMP type");
+
+ head.biWidth = wbmpHead.ImageWidth;
+ head.biHeight= wbmpHead.ImageHeight;
+
+ if (head.biWidth<=0 || head.biHeight<=0)
+ cx_throw("Corrupted WBMP");
+
+ if (info.nEscape == -1){
+ info.dwType = CXIMAGE_FORMAT_WBMP;
+ return true;
+ }
+
+ Create(head.biWidth, head.biHeight, 1, CXIMAGE_FORMAT_WBMP);
+ if (!IsValid()) cx_throw("WBMP Create failed");
+ SetGrayPalette();
+
+ int32_t linewidth=(head.biWidth+7)/8;
+ CImageIterator iter(this);
+ iter.Upset();
+ for (int32_t y=0; y < head.biHeight; y++){
+ hFile->Read(iter.GetRow(),linewidth,1);
+ iter.PrevRow();
+ }
+
+ } cx_catch {
+ if (strcmp(message,"")) strncpy(info.szLastError,message,255);
+ return FALSE;
+ }
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+bool CxImageWBMP::ReadOctet(CxFile * hFile, uint32_t *data)
+{
+ uint8_t c;
+ *data = 0;
+ do {
+ if (hFile->Eof()) return false;
+ c = (uint8_t)hFile->GetC();
+ *data <<= 7;
+ *data |= (c & 0x7F);
+ } while ((c&0x80)!=0);
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+#endif //CXIMAGE_SUPPORT_DECODE
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_SUPPORT_ENCODE
+////////////////////////////////////////////////////////////////////////////////
+bool CxImageWBMP::Encode(CxFile * hFile)
+{
+ if (EncodeSafeCheck(hFile)) return false;
+
+ //check format limits
+ if (head.biBitCount!=1){
+ strcpy(info.szLastError,"Can't save this image as WBMP");
+ return false;
+ }
+
+ WBMPHEADER wbmpHead;
+ wbmpHead.Type=0;
+ wbmpHead.FixHeader=0;
+ wbmpHead.ImageWidth=head.biWidth;
+ wbmpHead.ImageHeight=head.biHeight;
+
+ // Write the file header
+ hFile->PutC('\0');
+ hFile->PutC('\0');
+ WriteOctet(hFile,wbmpHead.ImageWidth);
+ WriteOctet(hFile,wbmpHead.ImageHeight);
+ // Write the pixels
+ int32_t linewidth=(wbmpHead.ImageWidth+7)/8;
+ CImageIterator iter(this);
+ iter.Upset();
+ for (uint32_t y=0; y < wbmpHead.ImageHeight; y++){
+ hFile->Write(iter.GetRow(),linewidth,1);
+ iter.PrevRow();
+ }
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+bool CxImageWBMP::WriteOctet(CxFile * hFile, const uint32_t data)
+{
+ int32_t ns = 0;
+ while (data>>(ns+7)) ns+=7;
+ while (ns>0){
+ if (!hFile->PutC(0x80 | (uint8_t)(data>>ns))) return false;
+ ns-=7;
+ }
+ if (!(hFile->PutC((uint8_t)(0x7F & data)))) return false;
+ return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+#endif // CXIMAGE_SUPPORT_ENCODE
+////////////////////////////////////////////////////////////////////////////////
+#endif // CXIMAGE_SUPPORT_WBMP
+
diff --git a/smelt/sdl/CxImage/ximawbmp.h b/smelt/sdl/CxImage/ximawbmp.h new file mode 100644 index 0000000..9a7837e --- /dev/null +++ b/smelt/sdl/CxImage/ximawbmp.h @@ -0,0 +1,49 @@ +/*
+ * File: ximawbmp.h
+ * Purpose: WBMP Image Class Loader and Writer
+ */
+/* ==========================================================
+ * CxImageWBMP (c) 12/Jul/2002 Davide Pizzolato - www.xdp.it
+ * For conditions of distribution and use, see copyright notice in ximage.h
+ * ==========================================================
+ */
+#if !defined(__ximaWBMP_h)
+#define __ximaWBMP_h
+
+#include "ximage.h"
+
+#if CXIMAGE_SUPPORT_WBMP
+
+class CxImageWBMP: public CxImage
+{
+#pragma pack(1)
+typedef struct tagWbmpHeader
+{
+ uint32_t Type; // 0
+ uint8_t FixHeader; // 0
+ uint32_t ImageWidth; // Image Width
+ uint32_t ImageHeight; // Image Height
+} WBMPHEADER;
+#pragma pack()
+public:
+ CxImageWBMP(): CxImage(CXIMAGE_FORMAT_WBMP) {}
+
+// bool Load(const TCHAR * imageFileName){ return CxImage::Load(imageFileName,CXIMAGE_FORMAT_WBMP);}
+// bool Save(const TCHAR * imageFileName){ return CxImage::Save(imageFileName,CXIMAGE_FORMAT_WBMP);}
+ bool Decode(CxFile * hFile);
+ bool Decode(FILE *hFile) { CxIOFile file(hFile); return Decode(&file); }
+protected:
+ bool ReadOctet(CxFile * hFile, uint32_t *data);
+
+public:
+#if CXIMAGE_SUPPORT_ENCODE
+ bool Encode(CxFile * hFile);
+ bool Encode(FILE *hFile) { CxIOFile file(hFile); return Encode(&file); }
+protected:
+ bool WriteOctet(CxFile * hFile, const uint32_t data);
+#endif // CXIMAGE_SUPPORT_ENCODE
+};
+
+#endif
+
+#endif
diff --git a/smelt/sdl/CxImage/ximawmf.cpp b/smelt/sdl/CxImage/ximawmf.cpp new file mode 100644 index 0000000..a1057f5 --- /dev/null +++ b/smelt/sdl/CxImage/ximawmf.cpp @@ -0,0 +1,483 @@ +/*
+*********************************************************************
+ * File: ximawmf.cpp
+ * Purpose: Windows Metafile Class Loader and Writer
+ * Author: Volker Horch - vhorch@gmx.de
+ * created: 13-Jun-2002
+ *
+ * Note: If the code below works, i wrote it.
+ * If it doesn't work, i don't know who wrote it.
+*********************************************************************
+ */
+
+/*
+*********************************************************************
+ Note by Author:
+*********************************************************************
+
+ Metafile Formats:
+ =================
+
+ There are 2 kinds of Windows Metafiles:
+ - Standard Windows Metafile
+ - Placeable Windows Metafile
+
+ A StandardWindows Metafile looks like:
+ - Metafile Header (MEATAHEADER)
+ - Metafile Records
+
+ A Placeable Metafile looks like:
+ - Aldus Header (METAFILEHEADER)
+ - Metafile Header (METAHEADER)
+ - Metafile Records
+
+ The "Metafile Header" and the "Metafile Records" are the same
+ for both formats. However, the Standard Metafile does not contain any
+ information about the original dimensions or x/y ratio of the Metafile.
+
+ I decided, to allow only placeable Metafiles here. If you also want to
+ enable Standard Metafiles, you will have to guess the dimensions of
+ the image.
+
+*********************************************************************
+ Limitations: see ximawmf.h
+ you may configure some stuff there
+*********************************************************************
+*/
+
+#include "ximawmf.h"
+
+#if CXIMAGE_SUPPORT_WMF && CXIMAGE_SUPPORT_WINDOWS
+
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_SUPPORT_DECODE
+////////////////////////////////////////////////////////////////////////////////
+bool CxImageWMF::Decode(CxFile *hFile, int32_t nForceWidth, int32_t nForceHeight)
+{
+ if (hFile == NULL) return false;
+
+ HENHMETAFILE hMeta;
+ HDC hDC;
+ int32_t cx,cy;
+
+ //save the current position of the file
+ int32_t pos = hFile->Tell();
+
+ // Read the Metafile and convert to an Enhanced Metafile
+ METAFILEHEADER mfh;
+ hMeta = ConvertWmfFiletoEmf(hFile, &mfh);
+ if (hMeta) { // ok, it's a WMF
+
+/////////////////////////////////////////////////////////////////////
+// We use the original WMF size information, because conversion to
+// EMF adjusts the Metafile to Full Screen or does not set rclBounds at all
+// ENHMETAHEADER emh;
+// uint32_t uRet;
+// uRet = GetEnhMetaFileHeader(hMeta, // handle of enhanced metafile
+// sizeof(ENHMETAHEADER), // size of buffer, in bytes
+// &emh); // address of buffer to receive data
+// if (!uRet){
+// DeleteEnhMetaFile(hMeta);
+// return false;
+// }
+// // calculate size
+// cx = emh.rclBounds.right - emh.rclBounds.left;
+// cy = emh.rclBounds.bottom - emh.rclBounds.top;
+/////////////////////////////////////////////////////////////////////
+
+ // calculate size
+ // scale the metafile (pixels/inch of metafile => pixels/inch of display)
+ // mfh.inch already checked to be <> 0
+
+ hDC = ::GetDC(0);
+ int32_t cx1 = ::GetDeviceCaps(hDC, LOGPIXELSX);
+ int32_t cy1 = ::GetDeviceCaps(hDC, LOGPIXELSY);
+ ::ReleaseDC(0, hDC);
+
+ cx = (mfh.inch/2 + (mfh.bbox.right - mfh.bbox.left) * cx1) / mfh.inch;
+ cy = (mfh.inch/2 + (mfh.bbox.bottom - mfh.bbox.top) * cy1) / mfh.inch;
+
+ } else { // maybe it's an EMF...
+
+ hFile->Seek(pos,SEEK_SET);
+
+ ENHMETAHEADER emh;
+ hMeta = ConvertEmfFiletoEmf(hFile, &emh);
+
+ if (!hMeta){
+ strcpy(info.szLastError,"corrupted WMF");
+ return false; // definitively give up
+ }
+
+ // ok, it's an EMF; calculate canvas size
+ cx = emh.rclBounds.right - emh.rclBounds.left;
+ cy = emh.rclBounds.bottom - emh.rclBounds.top;
+
+ // alternative methods, sometime not so reliable... [DP]
+ //cx = emh.szlDevice.cx;
+ //cy = emh.szlDevice.cy;
+ //
+ //hDC = ::GetDC(0);
+ //float hscale = (float)GetDeviceCaps(hDC, HORZRES)/(100.0f * GetDeviceCaps(hDC, HORZSIZE));
+ //float vscale = (float)GetDeviceCaps(hDC, VERTRES)/(100.0f * GetDeviceCaps(hDC, VERTSIZE));
+ //::ReleaseDC(0, hDC);
+ //cx = (int32_t)((emh.rclFrame.right - emh.rclFrame.left) * hscale);
+ //cy = (int32_t)((emh.rclFrame.bottom - emh.rclFrame.top) * vscale);
+ }
+
+ if (info.nEscape == -1) { // Check if cancelled
+ head.biWidth = cx;
+ head.biHeight= cy;
+ info.dwType = CXIMAGE_FORMAT_WMF;
+ DeleteEnhMetaFile(hMeta);
+ strcpy(info.szLastError,"output dimensions returned");
+ return true;
+ }
+
+ if (!cx || !cy) {
+ DeleteEnhMetaFile(hMeta);
+ strcpy(info.szLastError,"empty WMF");
+ return false;
+ }
+
+ if (nForceWidth) cx=nForceWidth;
+ if (nForceHeight) cy=nForceHeight;
+ ShrinkMetafile(cx, cy); // !! Otherwise Bitmap may have bombastic size
+
+ HDC hDC0 = ::GetDC(0); // DC of screen
+ HBITMAP hBitmap = CreateCompatibleBitmap(hDC0, cx, cy); // has # colors of display
+ hDC = CreateCompatibleDC(hDC0); // memory dc compatible with screen
+ ::ReleaseDC(0, hDC0); // don't need anymore. get rid of it.
+
+ if (hDC){
+ if (hBitmap){
+ RECT rc = {0,0,cx,cy};
+ int32_t bpp = ::GetDeviceCaps(hDC, BITSPIXEL);
+
+ HBITMAP hBitmapOld = (HBITMAP)SelectObject(hDC, hBitmap);
+
+ // clear out the entire bitmap with windows background
+ // because the MetaFile may not contain background information
+ uint32_t dwBack = XMF_COLOR_BACK;
+#if XMF_SUPPORT_TRANSPARENCY
+ if (bpp == 24) dwBack = XMF_COLOR_TRANSPARENT;
+#endif
+ uint32_t OldColor = SetBkColor(hDC, dwBack);
+ ExtTextOut(hDC, 0, 0, ETO_OPAQUE, &rc, NULL, 0, NULL);
+ SetBkColor(hDC, OldColor);
+
+ //retrieves optional palette entries from the specified enhanced metafile
+ PLOGPALETTE plogPal;
+ PBYTE pjTmp;
+ HPALETTE hPal;
+ int32_t iEntries = GetEnhMetaFilePaletteEntries(hMeta, 0, NULL);
+ if (iEntries) {
+ if ((plogPal = (PLOGPALETTE)GlobalAlloc(GMEM_FIXED | GMEM_ZEROINIT,
+ sizeof(uint32_t) + sizeof(PALETTEENTRY)*iEntries )) == NULL) {
+ DeleteObject(hBitmap);
+ DeleteDC(hDC);
+ DeleteEnhMetaFile(hMeta);
+ strcpy(info.szLastError,"Cancelled");
+ return false;
+ }
+
+ plogPal->palVersion = 0x300;
+ plogPal->palNumEntries = (uint16_t) iEntries;
+ pjTmp = (PBYTE) plogPal;
+ pjTmp += 4;
+
+ GetEnhMetaFilePaletteEntries(hMeta, iEntries, (PPALETTEENTRY)pjTmp);
+ hPal = CreatePalette(plogPal);
+ GlobalFree(plogPal);
+
+ SelectPalette(hDC, hPal, FALSE);
+ RealizePalette(hDC);
+ }
+
+ // Play the Metafile into Memory DC
+ BOOL bRet = PlayEnhMetaFile(hDC, // handle to a device context
+ hMeta, // handle to an enhanced metafile
+ &rc); // pointer to bounding rectangle
+
+ SelectObject(hDC, hBitmapOld);
+ DeleteEnhMetaFile(hMeta); // we are done with this one
+
+ if (info.nEscape) { // Check if cancelled
+ DeleteObject(hBitmap);
+ DeleteDC(hDC);
+ strcpy(info.szLastError,"Cancelled");
+ return false;
+ }
+
+ // the Bitmap now has the image.
+ // Create our DIB and convert the DDB into DIB
+ if (!Create(cx, cy, bpp, CXIMAGE_FORMAT_WMF)) {
+ DeleteObject(hBitmap);
+ DeleteDC(hDC);
+ return false;
+ }
+
+#if XMF_SUPPORT_TRANSPARENCY
+ if (bpp == 24) {
+ RGBQUAD rgbTrans = { XMF_RGBQUAD_TRANSPARENT };
+ SetTransColor(rgbTrans);
+ }
+#endif
+ // We're finally ready to get the DIB. Call the driver and let
+ // it party on our bitmap. It will fill in the color table,
+ // and bitmap bits of our global memory block.
+ bRet = GetDIBits(hDC, hBitmap, 0,
+ (uint32_t)cy, GetBits(), (LPBITMAPINFO)pDib, DIB_RGB_COLORS);
+
+ DeleteObject(hBitmap);
+ DeleteDC(hDC);
+
+ return (bRet!=0);
+ } else {
+ DeleteDC(hDC);
+ }
+ } else {
+ if (hBitmap) DeleteObject(hBitmap);
+ }
+
+ DeleteEnhMetaFile(hMeta);
+
+ return false;
+}
+
+/**********************************************************************
+ Function: CheckMetafileHeader
+ Purpose: Check if the Metafileheader of a file is valid
+**********************************************************************/
+BOOL CxImageWMF::CheckMetafileHeader(METAFILEHEADER *metafileheader)
+{
+ uint16_t *pw;
+ uint16_t cs;
+ int32_t i;
+
+ // check magic #
+ if (metafileheader->key != 0x9ac6cdd7L) return false;
+
+ // test checksum of header
+ pw = (uint16_t *)metafileheader;
+ cs = *pw;
+ pw++;
+ for (i = 0; i < 9; i++) {
+ cs ^= *pw;
+ pw++;
+ }
+
+ if (cs != metafileheader->checksum) return false;
+
+ // check resolution
+ if ((metafileheader->inch <= 0) || (metafileheader->inch > 2540)) return false;
+
+ return true;
+}
+
+/**********************************************************************
+ Function: ConvertWmfFiletoEmf
+ Purpose: Converts a Windows Metafile into an Enhanced Metafile
+**********************************************************************/
+HENHMETAFILE CxImageWMF::ConvertWmfFiletoEmf(CxFile *fp, METAFILEHEADER *metafileheader)
+{
+ HENHMETAFILE hMeta;
+ uint32_t lenFile;
+ uint32_t len;
+ uint8_t *p;
+ METAHEADER mfHeader;
+ uint32_t seekpos;
+
+ hMeta = 0;
+
+ // get length of the file
+ lenFile = fp->Size();
+
+ // a placeable metafile starts with a METAFILEHEADER
+ // read it and check metafileheader
+ len = fp->Read(metafileheader, 1, sizeof(METAFILEHEADER));
+ if (len < sizeof(METAFILEHEADER)) return (hMeta);
+
+ if (CheckMetafileHeader(metafileheader)) {
+ // This is a placeable metafile
+ // Convert the placeable format into something that can
+ // be used with GDI metafile functions
+ seekpos = sizeof(METAFILEHEADER);
+ } else {
+ // Not a placeable wmf. A windows metafile?
+ // at least not scaleable.
+ // we could try to convert, but would loose ratio. don't allow this
+ return (hMeta);
+
+ //metafileheader->bbox.right = ?;
+ //metafileheader->bbox.left = ?;
+ //metafileheader->bbox.bottom = ?;
+ //metafileheader->bbox.top = ?;
+ //metafileheader->inch = ?;
+ //
+ //seekpos = 0;
+ // fp->Seek(0, SEEK_SET); // rewind
+ }
+
+ // At this point we have a metaheader regardless of whether
+ // the metafile was a windows metafile or a placeable metafile
+ // so check to see if it is valid. There is really no good
+ // way to do this so just make sure that the mtType is either
+ // 1 or 2 (memory or disk file)
+ // in addition we compare the length of the METAHEADER against
+ // the length of the file. if filelength < len => no Metafile
+
+ len = fp->Read(&mfHeader, 1, sizeof(METAHEADER));
+ if (len < sizeof(METAHEADER)) return (hMeta);
+
+ if ((mfHeader.mtType != 1) && (mfHeader.mtType != 2)) return (hMeta);
+
+ // Length in Bytes from METAHEADER
+ len = mfHeader.mtSize * 2;
+ if (len > lenFile) return (hMeta);
+
+ // Allocate memory for the metafile bits
+ p = (uint8_t *)malloc(len);
+ if (!p) return (hMeta);
+
+ // seek back to METAHEADER and read all the stuff at once
+ fp->Seek(seekpos, SEEK_SET);
+ lenFile = fp->Read(p, 1, len);
+ if (lenFile != len) {
+ free(p);
+ return (hMeta);
+ }
+
+ // the following (commented code) works, but adjusts rclBound of the
+ // Enhanced Metafile to full screen.
+ // the METAFILEHEADER from above is needed to scale the image
+
+// hMeta = SetWinMetaFileBits(len, p, NULL, NULL);
+
+ // scale the metafile (pixels/inch of metafile => pixels/inch of display)
+
+ METAFILEPICT mfp;
+ int32_t cx1, cy1;
+ HDC hDC;
+
+ hDC = ::GetDC(0);
+ cx1 = ::GetDeviceCaps(hDC, LOGPIXELSX);
+ cy1 = ::GetDeviceCaps(hDC, LOGPIXELSY);
+
+ memset(&mfp, 0, sizeof(mfp));
+
+ mfp.mm = MM_ANISOTROPIC;
+ mfp.xExt = 10000; //(metafileheader->bbox.right - metafileheader->bbox.left) * cx1 / metafileheader->inch;
+ mfp.yExt = 10000; //(metafileheader->bbox.bottom - metafileheader->bbox.top) * cy1 / metafileheader->inch;
+ mfp.hMF = 0;
+
+ // in MM_ANISOTROPIC mode xExt and yExt are in MM_HIENGLISH
+ // MM_HIENGLISH means: Each logical unit is converted to 0.001 inch
+ //mfp.xExt *= 1000;
+ //mfp.yExt *= 1000;
+ // ????
+ //int32_t k = 332800 / ::GetSystemMetrics(SM_CXSCREEN);
+ //mfp.xExt *= k; mfp.yExt *= k;
+
+ // fix for Win9x
+ while ((mfp.xExt < 6554) && (mfp.yExt < 6554))
+ {
+ mfp.xExt *= 10;
+ mfp.yExt *= 10;
+ }
+
+ hMeta = SetWinMetaFileBits(len, p, hDC, &mfp);
+
+ if (!hMeta){ //try 2nd conversion using a different mapping
+ mfp.mm = MM_TEXT;
+ hMeta = SetWinMetaFileBits(len, p, hDC, &mfp);
+ }
+
+ ::ReleaseDC(0, hDC);
+
+ // Free Memory
+ free(p);
+
+ return (hMeta);
+}
+/////////////////////////////////////////////////////////////////////
+HENHMETAFILE CxImageWMF::ConvertEmfFiletoEmf(CxFile *pFile, ENHMETAHEADER *pemfh)
+{
+ HENHMETAFILE hMeta;
+ int32_t iLen = pFile->Size();
+
+ // Check the header first: <km>
+ int32_t pos = pFile->Tell();
+ int32_t iLenRead = pFile->Read(pemfh, 1, sizeof(ENHMETAHEADER));
+ if (iLenRead < sizeof(ENHMETAHEADER)) return NULL;
+ if (pemfh->iType != EMR_HEADER) return NULL;
+ if (pemfh->dSignature != ENHMETA_SIGNATURE) return NULL;
+ //if (pemfh->nBytes != (uint32_t)iLen) return NULL;
+ pFile->Seek(pos,SEEK_SET);
+
+ uint8_t* pBuff = (uint8_t *)malloc(iLen);
+ if (!pBuff) return (FALSE);
+
+ // Read the Enhanced Metafile
+ iLenRead = pFile->Read(pBuff, 1, iLen);
+ if (iLenRead != iLen) {
+ free(pBuff);
+ return NULL;
+ }
+
+ // Make it a Memory Metafile
+ hMeta = SetEnhMetaFileBits(iLen, pBuff);
+
+ free(pBuff); // finished with this one
+
+ if (!hMeta) return NULL; // oops.
+
+ // Get the Enhanced Metafile Header
+ uint32_t uRet = GetEnhMetaFileHeader(hMeta, // handle of enhanced metafile
+ sizeof(ENHMETAHEADER), // size of buffer, in bytes
+ pemfh); // address of buffer to receive data
+
+ if (!uRet) {
+ DeleteEnhMetaFile(hMeta);
+ return NULL;
+ }
+
+ return (hMeta);
+}
+////////////////////////////////////////////////////////////////////////////////
+#endif //CXIMAGE_SUPPORT_DECODE
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_SUPPORT_ENCODE
+/////////////////////////////////////////////////////////////////////
+bool CxImageWMF::Encode(CxFile * hFile)
+{
+ if (hFile == NULL) return false;
+ strcpy(info.szLastError, "Save WMF not supported");
+ return false;
+}
+#endif // CXIMAGE_SUPPORT_ENCODE
+/////////////////////////////////////////////////////////////////////
+
+/**********************************************************************
+Function: ShrinkMetafile
+Purpose: Shrink the size of a metafile to be not larger than
+ the definition
+**********************************************************************/
+void CxImageWMF::ShrinkMetafile(int32_t &cx, int32_t &cy)
+{
+ int32_t xScreen = XMF_MAXSIZE_CX;
+ int32_t yScreen = XMF_MAXSIZE_CY;
+
+ if (cx > xScreen){
+ cy = cy * xScreen / cx;
+ cx = xScreen;
+ }
+
+ if (cy > yScreen){
+ cx = cx * yScreen / cy;
+ cy = yScreen;
+ }
+}
+
+#endif // CIMAGE_SUPPORT_WMF
+
diff --git a/smelt/sdl/CxImage/ximawmf.h b/smelt/sdl/CxImage/ximawmf.h new file mode 100644 index 0000000..94fb168 --- /dev/null +++ b/smelt/sdl/CxImage/ximawmf.h @@ -0,0 +1,154 @@ +/*
+*********************************************************************
+ * File: ximawmf.h
+ * Purpose: Windows Metafile Class Loader and Writer
+ * Author: Volker Horch - vhorch@gmx.de
+ * created: 13-Jun-2002
+*********************************************************************
+ */
+
+/*
+*********************************************************************
+ Notes by Author:
+*********************************************************************
+
+ Limitations:
+ ============
+
+ a) Transparency:
+
+ A Metafile is vector graphics, which has transparency by design.
+ This class always converts into a Bitmap format. Transparency is
+ supported, but there is no good way to find out, which parts
+ of the Metafile are transparent. There are two ways how we can
+ handle this:
+
+ - Clear the Background of the Bitmap with the background color
+ you like (i have used COLOR_WINDOW) and don't support transparency.
+
+ below #define XMF_SUPPORT_TRANSPARENCY 0
+ #define XMF_COLOR_BACK RGB(Background color you like)
+
+ - Clear the Background of the Bitmap with a very unusual color
+ (which one ?) and use this color as the transparent color
+
+ below #define XMF_SUPPORT_TRANSPARENCY 1
+ #define XMF_COLOR_TRANSPARENT_R ...
+ #define XMF_COLOR_TRANSPARENT_G ...
+ #define XMF_COLOR_TRANSPARENT_B ...
+
+ b) Resolution
+
+ Once we have converted the Metafile into a Bitmap and we zoom in
+ or out, the image may not look very good. If we still had the
+ original Metafile, zooming would produce good results always.
+
+ c) Size
+
+ Although the filesize of a Metafile may be very small, it might
+ produce a Bitmap with a bombastic size. Assume you have a Metafile
+ with an image size of 6000*4000, which contains just one Metafile
+ record ((e.g. a line from (0,0) to (6000, 4000)). The filesize
+ of this Metafile would be let's say 100kB. If we convert it to
+ a 6000*4000 Bitmap with 24 Bits/Pixes, the Bitmap would consume
+ about 68MB of memory.
+
+ I have choosen, to limit the size of the Bitmap to max.
+ screensize, to avoid memory problems.
+
+ If you want something else,
+ modify #define XMF_MAXSIZE_CX / XMF_MAXSIZE_CY below
+
+*********************************************************************
+*/
+
+#ifndef _XIMAWMF_H
+#define _XIMAWMF_H
+
+#include "ximage.h"
+
+#if CXIMAGE_SUPPORT_WMF && CXIMAGE_SUPPORT_WINDOWS
+
+class CxImageWMF: public CxImage
+{
+
+#pragma pack(1)
+
+typedef struct tagRECT16
+{
+ int16_t left;
+ int16_t top;
+ int16_t right;
+ int16_t bottom;
+} RECT16;
+
+// taken from Windos 3.11 SDK Documentation (Programmer's Reference Volume 4: Resources)
+typedef struct tagMETAFILEHEADER
+{
+ uint32_t key; // always 0x9ac6cdd7
+ uint16_t reserved1; // reserved = 0
+ RECT16 bbox; // bounding rectangle in metafile units as defined in "inch"
+ uint16_t inch; // number of metafile units per inch (should be < 1440)
+ uint32_t reserved2; // reserved = 0
+ uint16_t checksum; // sum of the first 10 WORDS (using XOR operator)
+} METAFILEHEADER;
+
+#pragma pack()
+
+public:
+ CxImageWMF(): CxImage(CXIMAGE_FORMAT_WMF) { }
+
+ bool Decode(CxFile * hFile, int32_t nForceWidth=0, int32_t nForceHeight=0);
+ bool Decode(FILE *hFile, int32_t nForceWidth=0, int32_t nForceHeight=0)
+ { CxIOFile file(hFile); return Decode(&file,nForceWidth,nForceHeight); }
+
+#if CXIMAGE_SUPPORT_ENCODE
+ bool Encode(CxFile * hFile);
+ bool Encode(FILE *hFile) { CxIOFile file(hFile); return Encode(&file); }
+#endif // CXIMAGE_SUPPORT_ENCODE
+
+protected:
+ void ShrinkMetafile(int32_t &cx, int32_t &cy);
+ BOOL CheckMetafileHeader(METAFILEHEADER *pmetafileheader);
+ HENHMETAFILE ConvertWmfFiletoEmf(CxFile *pFile, METAFILEHEADER *pmetafileheader);
+ HENHMETAFILE ConvertEmfFiletoEmf(CxFile *pFile, ENHMETAHEADER *pemfh);
+
+};
+
+#define METAFILEKEY 0x9ac6cdd7L
+
+// Background color definition (if no transparency). see Notes above
+#define XMF_COLOR_BACK GetSysColor(COLOR_WINDOW)
+// alternatives
+//#define XMF_COLOR_BACK RGB(192, 192, 192) // lite gray
+//#define XMF_COLOR_BACK RGB( 0, 0, 0) // black
+//#define XMF_COLOR_BACK RGB(255, 255, 255) // white
+
+
+// transparency support. see Notes above
+#define XMF_SUPPORT_TRANSPARENCY 0
+#define XMF_COLOR_TRANSPARENT_R 211
+#define XMF_COLOR_TRANSPARENT_G 121
+#define XMF_COLOR_TRANSPARENT_B 112
+// don't change
+#define XMF_COLOR_TRANSPARENT RGB (XMF_COLOR_TRANSPARENT_R, \
+ XMF_COLOR_TRANSPARENT_G, \
+ XMF_COLOR_TRANSPARENT_B)
+// don't change
+#define XMF_RGBQUAD_TRANSPARENT XMF_COLOR_TRANSPARENT_B, \
+ XMF_COLOR_TRANSPARENT_G, \
+ XMF_COLOR_TRANSPARENT_R, \
+ 0
+// max. size. see Notes above
+// alternatives
+//#define XMF_MAXSIZE_CX (GetSystemMetrics(SM_CXSCREEN)-10)
+//#define XMF_MAXSIZE_CY (GetSystemMetrics(SM_CYSCREEN)-50)
+//#define XMF_MAXSIZE_CX (2*GetSystemMetrics(SM_CXSCREEN)/3)
+//#define XMF_MAXSIZE_CY (2*GetSystemMetrics(SM_CYSCREEN)/3)
+#define XMF_MAXSIZE_CX 4000
+#define XMF_MAXSIZE_CY 4000
+
+
+#endif
+
+#endif
diff --git a/smelt/sdl/CxImage/ximawnd.cpp b/smelt/sdl/CxImage/ximawnd.cpp new file mode 100644 index 0000000..7f23f8f --- /dev/null +++ b/smelt/sdl/CxImage/ximawnd.cpp @@ -0,0 +1,1900 @@ +// xImaWnd.cpp : Windows functions
+/* 07/08/2001 v1.00 - Davide Pizzolato - www.xdp.it
+ * CxImage version 7.0.0 31/Dec/2010
+ */
+
+#include "ximage.h"
+
+#include "ximaiter.h"
+#include "ximabmp.h"
+
+////////////////////////////////////////////////////////////////////////////////
+#if defined (_WIN32_WCE)
+
+#ifndef DEFAULT_GUI_FONT
+#define DEFAULT_GUI_FONT 17
+#endif
+
+#ifndef PROOF_QUALITY
+#define PROOF_QUALITY 2
+#endif
+
+struct DIBINFO : public BITMAPINFO
+{
+ RGBQUAD arColors[255]; // Color table info - adds an extra 255 entries to palette
+ operator LPBITMAPINFO() { return (LPBITMAPINFO) this; }
+ operator LPBITMAPINFOHEADER() { return &bmiHeader; }
+ RGBQUAD* ColorTable() { return bmiColors; }
+};
+
+int32_t BytesPerLine(int32_t nWidth, int32_t nBitsPerPixel)
+{
+ return ( (nWidth * nBitsPerPixel + 31) & (~31) ) / 8;
+}
+
+int32_t NumColorEntries(int32_t nBitsPerPixel, int32_t nCompression, uint32_t biClrUsed)
+{
+ int32_t nColors = 0;
+ switch (nBitsPerPixel)
+ {
+ case 1:
+ nColors = 2; break;
+ case 2:
+ nColors = 4; break; // winCE only
+ case 4:
+ nColors = 16; break;
+ case 8:
+ nColors =256; break;
+ case 24:
+ nColors = 0; break;
+ case 16:
+ case 32:
+ nColors = 3; break; // I've found that PocketPCs need this regardless of BI_RGB or BI_BITFIELDS
+ default:
+ ASSERT(FALSE);
+ }
+ // If biClrUsed is provided, and it is a legal value, use it
+ if (biClrUsed > 0 && biClrUsed <= (uint32_t)nColors)
+ return biClrUsed;
+
+ return nColors;
+}
+
+int32_t GetDIBits(
+ HDC hdc, // handle to DC
+ HBITMAP hbmp, // handle to bitmap
+ uint32_t uStartScan, // first scan line to set
+ uint32_t cScanLines, // number of scan lines to copy
+ LPVOID lpvBits, // array for bitmap bits
+ LPBITMAPINFO lpbi, // bitmap data buffer
+ uint32_t uUsage // RGB or palette index
+)
+{
+ uint32_t iColorTableSize = 0;
+
+ if (!hbmp)
+ return 0;
+
+ // Get dimensions of bitmap
+ BITMAP bm;
+ if (!::GetObject(hbmp, sizeof(bm),(LPVOID)&bm))
+ return 0;
+
+ //3. Creating new bitmap and receive pointer to it's bits.
+ HBITMAP hTargetBitmap;
+ void *pBuffer;
+
+ //3.1 Initilize DIBINFO structure
+ DIBINFO dibInfo;
+ dibInfo.bmiHeader.biBitCount = 24;
+ dibInfo.bmiHeader.biClrImportant = 0;
+ dibInfo.bmiHeader.biClrUsed = 0;
+ dibInfo.bmiHeader.biCompression = 0;
+ dibInfo.bmiHeader.biHeight = bm.bmHeight;
+ dibInfo.bmiHeader.biPlanes = 1;
+ dibInfo.bmiHeader.biSize = 40;
+ dibInfo.bmiHeader.biSizeImage = bm.bmHeight*BytesPerLine(bm.bmWidth,24);
+ dibInfo.bmiHeader.biWidth = bm.bmWidth;
+ dibInfo.bmiHeader.biXPelsPerMeter = 3780;
+ dibInfo.bmiHeader.biYPelsPerMeter = 3780;
+ dibInfo.bmiColors[0].rgbBlue = 0;
+ dibInfo.bmiColors[0].rgbGreen = 0;
+ dibInfo.bmiColors[0].rgbRed = 0;
+ dibInfo.bmiColors[0].rgbReserved = 0;
+
+ //3.2 Create bitmap and receive pointer to points into pBuffer
+ HDC hDC = ::GetDC(NULL);
+ ASSERT(hDC);
+ hTargetBitmap = CreateDIBSection(
+ hDC,
+ (const BITMAPINFO*)dibInfo,
+ DIB_RGB_COLORS,
+ (void**)&pBuffer,
+ NULL,
+ 0);
+
+ ::ReleaseDC(NULL, hDC);
+
+ //4. Copy source bitmap into the target bitmap.
+
+ //4.1 Create 2 device contexts
+ HDC memDc = CreateCompatibleDC(NULL);
+ if (!memDc) {
+ ASSERT(FALSE);
+ }
+
+ HDC targetDc = CreateCompatibleDC(NULL);
+ if (!targetDc) {
+ ASSERT(FALSE);
+ }
+
+ //4.2 Select source bitmap into one DC, target into another
+ HBITMAP hOldBitmap1 = (HBITMAP)::SelectObject(memDc, hbmp);
+ HBITMAP hOldBitmap2 = (HBITMAP)::SelectObject(targetDc, hTargetBitmap);
+
+ //4.3 Copy source bitmap into the target one
+ BitBlt(targetDc, 0, 0, bm.bmWidth, bm.bmHeight, memDc, 0, 0, SRCCOPY);
+
+ //4.4 Restore device contexts
+ ::SelectObject(memDc, hOldBitmap1);
+ ::SelectObject(targetDc, hOldBitmap2);
+ DeleteDC(memDc);
+ DeleteDC(targetDc);
+
+ //Here we can bitmap bits: pBuffer. Note:
+ // 1. pBuffer contains 3 bytes per point
+ // 2. Lines ane from the bottom to the top!
+ // 3. Points in the line are from the left to the right
+ // 4. Bytes in one point are BGR (blue, green, red) not RGB
+ // 5. Don't delete pBuffer, it will be automatically deleted
+ // when delete hTargetBitmap
+ lpvBits = pBuffer;
+
+ DeleteObject(hbmp);
+ //DeleteObject(hTargetBitmap);
+
+ return 1;
+}
+#endif
+
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_SUPPORT_WINDOWS
+////////////////////////////////////////////////////////////////////////////////
+int32_t CxImage::Blt(HDC pDC, int32_t x, int32_t y)
+{
+ if((pDib==0)||(pDC==0)||(!info.bEnabled)) return 0;
+
+ HBRUSH brImage = CreateDIBPatternBrushPt(pDib, DIB_RGB_COLORS);
+ POINT pt;
+ SetBrushOrgEx(pDC,x,y,&pt); //<RT>
+ HBRUSH brOld = (HBRUSH) SelectObject(pDC, brImage);
+ PatBlt(pDC, x, y, head.biWidth, head.biHeight, PATCOPY);
+ SelectObject(pDC, brOld);
+ SetBrushOrgEx(pDC,pt.x,pt.y,NULL);
+ DeleteObject(brImage);
+ return 1;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Transfer the image in a global bitmap handle (clipboard copy)
+ */
+HANDLE CxImage::CopyToHandle()
+{
+ HANDLE hMem=NULL;
+ if (pDib){
+ hMem= GlobalAlloc(GHND, GetSize());
+ if (hMem){
+ uint8_t* pDst=(uint8_t*)GlobalLock(hMem);
+ if (pDst){
+ memcpy(pDst,pDib,GetSize());
+ }
+ GlobalUnlock(hMem);
+ }
+ }
+ return hMem;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Global object (clipboard paste) constructor
+ * \param hMem: source bitmap object, the clipboard format must be CF_DIB
+ * \return true if everything is ok
+ */
+bool CxImage::CreateFromHANDLE(HANDLE hMem)
+{
+ if (!Destroy())
+ return false;
+
+ uint32_t dwSize = GlobalSize(hMem);
+ if (!dwSize) return false;
+
+ uint8_t *lpVoid; //pointer to the bitmap
+ lpVoid = (uint8_t *)GlobalLock(hMem);
+ BITMAPINFOHEADER *pHead; //pointer to the bitmap header
+ pHead = (BITMAPINFOHEADER *)lpVoid;
+ if (lpVoid){
+
+ //CxMemFile hFile(lpVoid,dwSize);
+
+ //copy the bitmap header
+ memcpy(&head,pHead,sizeof(BITMAPINFOHEADER));
+ //check if it's a top-down bitmap
+ bool bTopDownDib = head.biHeight<0;
+ if (bTopDownDib) head.biHeight=-head.biHeight;
+ //create the image
+ if(!Create(head.biWidth,head.biHeight,head.biBitCount)){
+ GlobalUnlock(hMem);
+ return false;
+ }
+ //preserve DPI
+ SetXDPI((int32_t)floor(head.biXPelsPerMeter * 254.0 / 10000.0 + 0.5));
+ SetYDPI((int32_t)floor(head.biYPelsPerMeter * 254.0 / 10000.0 + 0.5));
+
+ /*//copy the pixels (old way)
+ if((pHead->biCompression != BI_RGB) || (pHead->biBitCount == 32)){ //<Jörgen Alfredsson>
+ // BITFIELD case
+ // set the internal header in the dib
+ memcpy(pDib,&head,sizeof(head));
+ // get the bitfield masks
+ uint32_t bf[3];
+ memcpy(bf,lpVoid+pHead->biSize,12);
+ // transform into RGB
+ Bitfield2RGB(lpVoid+pHead->biSize+12,bf[0],bf[1],bf[2],(uint8_t)pHead->biBitCount);
+ } else { //normal bitmap
+ memcpy(pDib,lpVoid,GetSize());
+ }*/
+
+ // <Michael Gandyra>
+ // fill in color map
+ bool bIsOldBmp = (head.biSize == sizeof(BITMAPCOREHEADER));
+ RGBQUAD *pRgb = GetPalette();
+ if (pRgb) {
+ // number of colors to fill in
+ int32_t nColors = DibNumColors(pHead);
+ if (bIsOldBmp) {
+ /* get pointer to BITMAPCOREINFO (old style 1.x) */
+ LPBITMAPCOREINFO lpbmc = (LPBITMAPCOREINFO)lpVoid;
+ for (int32_t i = nColors - 1; i >= 0; i--) {
+ pRgb[i].rgbRed = lpbmc->bmciColors[i].rgbtRed;
+ pRgb[i].rgbGreen = lpbmc->bmciColors[i].rgbtGreen;
+ pRgb[i].rgbBlue = lpbmc->bmciColors[i].rgbtBlue;
+ pRgb[i].rgbReserved = (uint8_t)0;
+ }
+ } else {
+ /* get pointer to BITMAPINFO (new style 3.x) */
+ LPBITMAPINFO lpbmi = (LPBITMAPINFO)lpVoid;
+ for (int32_t i = nColors - 1; i >= 0; i--) {
+ pRgb[i].rgbRed = lpbmi->bmiColors[i].rgbRed;
+ pRgb[i].rgbGreen = lpbmi->bmiColors[i].rgbGreen;
+ pRgb[i].rgbBlue = lpbmi->bmiColors[i].rgbBlue;
+ pRgb[i].rgbReserved = (uint8_t)0;
+ }
+ }
+ }
+
+ // <Michael Gandyra>
+ uint32_t dwCompression = pHead->biCompression;
+ // compressed bitmap ?
+ if(dwCompression!=BI_RGB || pHead->biBitCount==32 || pHead->biBitCount ==16) {
+ // get the bitmap bits
+ LPSTR lpDIBBits = (LPSTR)((uint8_t*)pHead + *(uint32_t*)pHead + (uint16_t)(GetNumColors() * sizeof(RGBQUAD)));
+ // decode and copy them to our image
+ switch (pHead->biBitCount) {
+ case 32 :
+ {
+ // BITFIELD case
+ if (dwCompression == BI_BITFIELDS || dwCompression == BI_RGB) {
+ // get the bitfield masks
+ uint32_t bf[3];
+ memcpy(bf,lpVoid+pHead->biSize,12);
+ // transform into RGB
+ Bitfield2RGB(lpVoid+pHead->biSize+12,bf[0],bf[1],bf[2],(uint8_t)pHead->biBitCount);
+ } else {
+ // "unknown compression";
+ GlobalUnlock(hMem);
+ return false;
+ }
+ }
+ break;
+ case 16 :
+ {
+ // get the bitfield masks
+ int32_t offset=0;
+ uint32_t bf[3];
+ if (dwCompression == BI_BITFIELDS) {
+ memcpy(bf,lpVoid+pHead->biSize,12);
+ offset= 12;
+ } else {
+ bf[0] = 0x7C00;
+ bf[1] = 0x3E0;
+ bf[2] = 0x1F; // RGB555
+ }
+ // copy the pixels
+ memcpy(info.pImage, lpDIBBits + offset, head.biHeight*((head.biWidth+1)/2)*4);
+ // transform into RGB
+ Bitfield2RGB(info.pImage, bf[0], bf[1], bf[2], 16);
+ }
+ break;
+ case 8 :
+ case 4 :
+ case 1 :
+ {
+ switch (dwCompression) {
+ case BI_RLE4:
+ {
+ uint8_t status_byte = 0;
+ uint8_t second_byte = 0;
+ int32_t scanline = 0;
+ int32_t bits = 0;
+ BOOL low_nibble = FALSE;
+ CImageIterator iter(this);
+
+ for (BOOL bContinue = TRUE; bContinue; ) {
+ status_byte = *(lpDIBBits++);
+ switch (status_byte) {
+ case RLE_COMMAND :
+ status_byte = *(lpDIBBits++);
+ switch (status_byte) {
+ case RLE_ENDOFLINE :
+ bits = 0;
+ scanline++;
+ low_nibble = FALSE;
+ break;
+ case RLE_ENDOFBITMAP :
+ bContinue = FALSE;
+ break;
+ case RLE_DELTA :
+ {
+ // read the delta values
+ uint8_t delta_x;
+ uint8_t delta_y;
+ delta_x = *(lpDIBBits++);
+ delta_y = *(lpDIBBits++);
+ // apply them
+ bits += delta_x / 2;
+ scanline += delta_y;
+ break;
+ }
+ default :
+ second_byte = *(lpDIBBits++);
+ uint8_t* sline = iter.GetRow(scanline);
+ for (int32_t i = 0; i < status_byte; i++) {
+ if ((uint8_t*)(sline+bits) < (uint8_t*)(info.pImage+head.biSizeImage)){
+ if (low_nibble) {
+ if (i&1)
+ *(sline + bits) |= (second_byte & 0x0f);
+ else
+ *(sline + bits) |= (second_byte & 0xf0)>>4;
+ bits++;
+ } else {
+ if (i&1)
+ *(sline + bits) = (uint8_t)(second_byte & 0x0f)<<4;
+ else
+ *(sline + bits) = (uint8_t)(second_byte & 0xf0);
+ }
+ }
+
+ if ((i & 1) && (i != (status_byte - 1)))
+ second_byte = *(lpDIBBits++);
+
+ low_nibble = !low_nibble;
+ }
+ if ((((status_byte+1) >> 1) & 1 ) == 1)
+ second_byte = *(lpDIBBits++);
+ break;
+ };
+ break;
+ default :
+ {
+ uint8_t* sline = iter.GetRow(scanline);
+ second_byte = *(lpDIBBits++);
+ for (unsigned i = 0; i < status_byte; i++) {
+ if ((uint8_t*)(sline+bits) < (uint8_t*)(info.pImage+head.biSizeImage)){
+ if (low_nibble) {
+ if (i&1)
+ *(sline + bits) |= (second_byte & 0x0f);
+ else
+ *(sline + bits) |= (second_byte & 0xf0)>>4;
+ bits++;
+ } else {
+ if (i&1)
+ *(sline + bits) = (uint8_t)(second_byte & 0x0f)<<4;
+ else
+ *(sline + bits) = (uint8_t)(second_byte & 0xf0);
+ }
+ }
+ low_nibble = !low_nibble;
+ }
+ }
+ break;
+ };
+ }
+ }
+ break;
+ case BI_RLE8 :
+ {
+ uint8_t status_byte = 0;
+ uint8_t second_byte = 0;
+ int32_t scanline = 0;
+ int32_t bits = 0;
+ CImageIterator iter(this);
+
+ for (BOOL bContinue = TRUE; bContinue; ) {
+ status_byte = *(lpDIBBits++);
+ if (status_byte==RLE_COMMAND) {
+ status_byte = *(lpDIBBits++);
+ switch (status_byte) {
+ case RLE_ENDOFLINE :
+ bits = 0;
+ scanline++;
+ break;
+ case RLE_ENDOFBITMAP :
+ bContinue = FALSE;
+ break;
+ case RLE_DELTA :
+ {
+ // read the delta values
+ uint8_t delta_x;
+ uint8_t delta_y;
+ delta_x = *(lpDIBBits++);
+ delta_y = *(lpDIBBits++);
+ // apply them
+ bits += delta_x;
+ scanline += delta_y;
+ }
+ break;
+ default :
+ int32_t nNumBytes = sizeof(uint8_t) * status_byte;
+ memcpy((void *)(iter.GetRow(scanline) + bits), lpDIBBits, nNumBytes);
+ lpDIBBits += nNumBytes;
+ // align run length to even number of bytes
+ if ((status_byte & 1) == 1)
+ second_byte = *(lpDIBBits++);
+ bits += status_byte;
+ break;
+ };
+ } else {
+ uint8_t *sline = iter.GetRow(scanline);
+ second_byte = *(lpDIBBits++);
+ for (unsigned i = 0; i < status_byte; i++) {
+ if ((uint8_t*)(sline+bits) < (uint8_t*)(info.pImage+head.biSizeImage)){
+ *(sline + bits) = second_byte;
+ bits++;
+ } else {
+ bContinue = FALSE; //don't delete: we are in memory, it is not as with files
+ break;
+ }
+ }
+ }
+ }
+ }
+ break;
+ default :
+ {
+ // "compression type not supported";
+ GlobalUnlock(hMem);
+ return false;
+ }
+ }
+ }
+ }
+ } else {
+ //normal bitmap (not compressed)
+ memcpy(pDib,lpVoid,GetSize());
+ }
+
+ GlobalUnlock(hMem);
+
+ if (bTopDownDib) Flip();
+
+ return true;
+ }
+ return false;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Transfer the image in a icon handle, with transparency.
+ * \param hdc: target device context (the screen, usually)
+ * \param bTransparency : (optional) exports trancparency
+ * \return icon handle, or NULL if an error occurs.
+ * \sa MakeBitmap
+ * \author [brunom]
+ */
+HICON CxImage::MakeIcon(HDC hdc, bool bTransparency)
+{
+ HICON hDestIcon = 0;
+
+ ICONINFO csDest;
+
+ csDest.fIcon = TRUE;
+ csDest.xHotspot = 0;
+ csDest.yHotspot = 0;
+
+ // Assign HBITMAP with Transparency to ICON Info structure
+ csDest.hbmColor = MakeBitmap( hdc, bTransparency );
+
+ // Create Mask just in case we need a Mask for the Icons
+ CxImage a_Mask;
+ GetTransparentMask(&a_Mask);
+
+ // Assign Mask
+ csDest.hbmMask = a_Mask.MakeBitmap();
+
+ // Create Icon
+ hDestIcon = ::CreateIconIndirect(&csDest);
+
+ return hDestIcon;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Transfer the image in a bitmap handle
+ * \param hdc: target device context (the screen, usually)
+ * \param bTransparency : (optional) exports trancparency
+ * \return bitmap handle, or NULL if an error occurs.
+ * \sa Draw2HBITMAP, MakeIcon
+ * \author []; changes [brunom]
+ */
+HBITMAP CxImage::MakeBitmap(HDC hdc, bool bTransparency)
+{
+ if (!pDib)
+ return NULL;
+
+ // Create HBITMAP with Trancparency
+ if( (pAlpha!=0) && bTransparency )
+ {
+ HDC hMemDC;
+ if (hdc)
+ hMemDC = hdc;
+ else
+ hMemDC = CreateCompatibleDC(NULL);
+
+ BITMAPINFO bi;
+
+ // Fill in the BITMAPINFOHEADER
+ bi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
+ bi.bmiHeader.biWidth = GetWidth();
+ bi.bmiHeader.biHeight = GetHeight();
+ bi.bmiHeader.biPlanes = 1;
+ bi.bmiHeader.biBitCount = 32;
+ bi.bmiHeader.biCompression = BI_RGB;
+ bi.bmiHeader.biSizeImage = 4 * GetWidth() * GetHeight();
+ bi.bmiHeader.biXPelsPerMeter = 0;
+ bi.bmiHeader.biYPelsPerMeter = 0;
+ bi.bmiHeader.biClrUsed = 0;
+ bi.bmiHeader.biClrImportant = 0;
+
+ COLORREF* pCrBits = NULL;
+ HBITMAP hbmp = CreateDIBSection (
+ hMemDC, &bi, DIB_RGB_COLORS, (void **)&pCrBits,
+ NULL, NULL);
+
+ if (!hdc)
+ DeleteDC(hMemDC);
+
+ DIBSECTION ds;
+ if (::GetObject (hbmp, sizeof (DIBSECTION), &ds) == 0)
+ {
+ return 0;
+ }
+
+ // transfer Pixels from CxImage to Bitmap
+ RGBQUAD* pBit = (RGBQUAD*) ds.dsBm.bmBits;
+ int32_t lPx,lPy;
+ for( lPy=0 ; lPy < bi.bmiHeader.biHeight ; ++lPy )
+ {
+ for( lPx=0 ; lPx < bi.bmiHeader.biWidth ; ++lPx )
+ {
+ RGBQUAD lPixel = GetPixelColor(lPx,lPy,true);
+ *pBit = lPixel;
+ pBit++;
+ }
+ }
+
+ return hbmp;
+ }
+
+ // Create HBITMAP without Trancparency
+ if (!hdc){
+ // this call to CreateBitmap doesn't create a DIB <jaslet>
+ // // Create a device-independent bitmap <CSC>
+ // return CreateBitmap(head.biWidth,head.biHeight, 1, head.biBitCount, GetBits());
+ // use instead this code
+ HDC hMemDC = CreateCompatibleDC(NULL);
+ LPVOID pBit32;
+ HBITMAP bmp = CreateDIBSection(hMemDC,(LPBITMAPINFO)pDib,DIB_RGB_COLORS, &pBit32, NULL, 0);
+ if (pBit32) memcpy(pBit32, GetBits(), head.biSizeImage);
+ DeleteDC(hMemDC);
+ return bmp;
+ }
+
+ // this single line seems to work very well
+ //HBITMAP bmp = CreateDIBitmap(hdc, (LPBITMAPINFOHEADER)pDib, CBM_INIT,
+ // GetBits(), (LPBITMAPINFO)pDib, DIB_RGB_COLORS);
+ // this alternative works also with _WIN32_WCE
+ LPVOID pBit32;
+ HBITMAP bmp = CreateDIBSection(hdc, (LPBITMAPINFO)pDib, DIB_RGB_COLORS, &pBit32, NULL, 0);
+ if (pBit32) memcpy(pBit32, GetBits(), head.biSizeImage);
+
+ return bmp;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * check if the bitmap contains transparency data
+ * \param hbmp : bitmap resource handle
+ * \return true the bitmap has transparency
+ * \author [brunom]
+ */
+bool CxImage::IsHBITMAPAlphaValid( HBITMAP hbmp )
+{
+ bool lbAlphaValid = false;
+ if (hbmp)
+ {
+ BITMAP bm;
+ // get informations about the bitmap
+ GetObject(hbmp, sizeof(BITMAP), (LPSTR) &bm);
+
+ // for alpha there must bee 32 Bit's per Pixel ??
+ if( bm.bmBitsPixel == 32 )
+ {
+ BITMAPINFO l_BitmapInfo;
+ l_BitmapInfo.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
+ l_BitmapInfo.bmiHeader.biWidth = bm.bmWidth;
+ l_BitmapInfo.bmiHeader.biHeight = bm.bmHeight;
+ l_BitmapInfo.bmiHeader.biPlanes = bm.bmPlanes;
+ l_BitmapInfo.bmiHeader.biBitCount = bm.bmBitsPixel;
+ l_BitmapInfo.bmiHeader.biCompression = BI_RGB;
+
+ // create Buffer for Image
+ RGBQUAD * l_pRawBytes = new RGBQUAD[bm.bmWidth * bm.bmHeight];
+
+ HDC dc = ::GetDC(NULL);
+
+ if(dc)
+ {
+ // Get Pixel Data from Image
+ if(GetDIBits(dc, hbmp, 0, bm.bmHeight, l_pRawBytes, &l_BitmapInfo, DIB_RGB_COLORS))
+ {
+ RGBQUAD * lpArray = l_pRawBytes;
+ RGBQUAD * lpArrayEnd = l_pRawBytes + (bm.bmWidth * bm.bmHeight);
+
+ // check if Alpha Channel is realy valid (anny value not zero)
+ for( ;lpArray != lpArrayEnd ; ++lpArray )
+ {
+ // any alpha value not zero
+ if( lpArray->rgbReserved != 0 )
+ {
+ // must be vaid alph channel
+ lbAlphaValid = true;
+ break;
+ }
+ }
+ }
+ ::ReleaseDC(NULL, dc);
+ }
+ // free temporary Memory
+ delete [] l_pRawBytes;
+ }
+ }
+
+ return lbAlphaValid;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Bitmap resource constructor
+ * \param hbmp : bitmap resource handle
+ * \param hpal : (optional) palette, useful for 8bpp DC
+ * \param bTransparency : (optional) for 32bpp images only, imports trancparency
+ * \return true if everything is ok
+ * \author []; changes [brunom]
+ */
+bool CxImage::CreateFromHBITMAP(HBITMAP hbmp, HPALETTE hpal, bool bTransparency)
+{
+ if (!Destroy())
+ return false;
+
+ if (hbmp) {
+ BITMAP bm;
+ // get informations about the bitmap
+ GetObject(hbmp, sizeof(BITMAP), (LPSTR) &bm);
+
+ // Transparency in HBITMAP
+ if(bTransparency && IsHBITMAPAlphaValid(hbmp))
+ {
+ bool l_bResult = true;
+
+ BITMAPINFO l_BitmapInfo;
+ l_BitmapInfo.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
+ l_BitmapInfo.bmiHeader.biWidth = bm.bmWidth;
+ l_BitmapInfo.bmiHeader.biHeight = bm.bmHeight;
+ l_BitmapInfo.bmiHeader.biPlanes = bm.bmPlanes;
+ l_BitmapInfo.bmiHeader.biBitCount = bm.bmBitsPixel;
+ l_BitmapInfo.bmiHeader.biCompression = BI_RGB;
+
+ RGBQUAD *l_pRawBytes = new RGBQUAD[bm.bmWidth * bm.bmHeight];
+
+ HDC dc = ::GetDC(NULL);
+
+ if(dc)
+ {
+ if(GetDIBits(dc, hbmp, 0, bm.bmHeight, l_pRawBytes, &l_BitmapInfo, DIB_RGB_COLORS))
+ l_bResult = CreateFromArray((uint8_t*)l_pRawBytes, bm.bmWidth, bm.bmHeight, bm.bmBitsPixel, bm.bmWidthBytes, false);
+ else
+ l_bResult = false;
+
+ ::ReleaseDC(NULL, dc);
+ }
+ else
+ l_bResult = false;
+
+ delete [] l_pRawBytes;
+
+ return l_bResult;
+ }
+ else
+ {
+ // create the image
+ if (!Create(bm.bmWidth, bm.bmHeight, bm.bmBitsPixel, 0))
+ return false;
+ // create a device context for the bitmap
+ HDC dc = ::GetDC(NULL);
+ if (!dc)
+ return false;
+
+ if (hpal){
+ SelectObject(dc,hpal); //the palette you should get from the user or have a stock one
+ RealizePalette(dc);
+ }
+
+ // copy the pixels
+ if (GetDIBits(dc, hbmp, 0, head.biHeight, info.pImage,
+ (LPBITMAPINFO)pDib, DIB_RGB_COLORS) == 0){ //replace &head with pDib <Wil Stark>
+ strcpy(info.szLastError,"GetDIBits failed");
+ ::ReleaseDC(NULL, dc);
+ return false;
+ }
+ ::ReleaseDC(NULL, dc);
+ return true;
+ }
+ }
+ return false;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * icon resource constructor
+ * \param hico : icon resource handle
+ * \param bTransparency : (optional) for 32bpp images only, imports trancparency
+ * \return true if everything is ok
+ * \author []; changes [Arlen Albert Keshabian], [brunom]
+ */
+#if !defined (_WIN32_WCE)
+bool CxImage::CreateFromHICON(HICON hico, bool bTransparency)
+{
+ if (!Destroy() || !hico)
+ return false;
+
+ bool l_bResult = true;
+
+ ICONINFO iinfo;
+ GetIconInfo(hico,&iinfo);
+
+ //BITMAP l_Bitmap;
+ //GetObject(iinfo.hbmColor, sizeof(BITMAP), &l_Bitmap);
+
+ l_bResult = CreateFromHBITMAP( iinfo.hbmColor, NULL, bTransparency );
+
+#if CXIMAGE_SUPPORT_ALPHA
+ if(l_bResult && ((!IsHBITMAPAlphaValid(iinfo.hbmColor)) || (!bTransparency)) )
+ {
+ CxImage mask;
+ mask.CreateFromHBITMAP(iinfo.hbmMask);
+ mask.GrayScale();
+ mask.Negative();
+ AlphaSet(mask);
+ }
+#endif
+
+ DeleteObject(iinfo.hbmColor); //<Sims>
+ DeleteObject(iinfo.hbmMask); //<Sims>
+
+ return l_bResult;
+}
+#endif //_WIN32_WCE
+////////////////////////////////////////////////////////////////////////////////
+int32_t CxImage::Draw(HDC hdc, const RECT& rect, RECT* pClipRect, bool bSmooth, bool bFlipY)
+{
+ return Draw(hdc, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top, pClipRect,bSmooth, bFlipY);
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Draws the image in the specified device context, with support for alpha channel, alpha palette, transparency, opacity.
+ * \param hdc : destination device context
+ * \param x,y : (optional) offset
+ * \param cx,cy : (optional) size.
+ * - If cx or cy are not specified (or less than 0), the normal width or height will be used
+ * - If cx or cy are different than width or height, the image will be stretched
+ *
+ * \param pClipRect : limit the drawing operations inside a given rectangle in the output device context.
+ * \param bSmooth : activates a bilinear filter that will enhance the appearence for zommed pictures.
+ * Quite slow. Needs CXIMAGE_SUPPORT_INTERPOLATION.
+ * \param bFlipY : draws a mirror image along the y-axis
+ * \return true if everything is ok
+ */
+int32_t CxImage::Draw(HDC hdc, int32_t x, int32_t y, int32_t cx, int32_t cy, RECT* pClipRect, bool bSmooth, bool bFlipY)
+{
+ if((pDib==0)||(hdc==0)||(cx==0)||(cy==0)||(!info.bEnabled)) return 0;
+
+ if (cx < 0) cx = head.biWidth;
+ if (cy < 0) cy = head.biHeight;
+ bool bTransparent = info.nBkgndIndex >= 0;
+ bool bAlpha = pAlpha != 0;
+
+ //required for MM_ANISOTROPIC, MM_HIENGLISH, and similar modes [Greg Peatfield]
+ int32_t hdc_Restore = ::SaveDC(hdc);
+ if (!hdc_Restore)
+ return 0;
+
+#if !defined (_WIN32_WCE)
+ RECT mainbox; // (experimental)
+ if (pClipRect){
+ GetClipBox(hdc,&mainbox);
+ HRGN rgn = CreateRectRgnIndirect(pClipRect);
+ ExtSelectClipRgn(hdc,rgn,RGN_AND);
+ DeleteObject(rgn);
+ }
+#endif
+
+ //find the smallest area to paint
+ RECT clipbox,paintbox;
+ GetClipBox(hdc,&clipbox);
+
+ paintbox.top = min(clipbox.bottom,max(clipbox.top,y));
+ paintbox.left = min(clipbox.right,max(clipbox.left,x));
+ paintbox.right = max(clipbox.left,min(clipbox.right,x+cx));
+ paintbox.bottom = max(clipbox.top,min(clipbox.bottom,y+cy));
+
+ int32_t destw = paintbox.right - paintbox.left;
+ int32_t desth = paintbox.bottom - paintbox.top;
+
+ if (!(bTransparent || bAlpha || info.bAlphaPaletteEnabled)){
+ if (cx==head.biWidth && cy==head.biHeight){ //NORMAL
+#if !defined (_WIN32_WCE)
+ SetStretchBltMode(hdc,COLORONCOLOR);
+#endif
+ if (bFlipY){
+ StretchDIBits(hdc, x, y+cy-1,
+ cx, -cy, 0, 0, cx, cy,
+ info.pImage,(BITMAPINFO*)pDib,DIB_RGB_COLORS,SRCCOPY);
+ } else {
+ SetDIBitsToDevice(hdc, x, y, cx, cy, 0, 0, 0, cy,
+ info.pImage,(BITMAPINFO*)pDib,DIB_RGB_COLORS);
+ }
+ } else { //STRETCH
+ //pixel informations
+ RGBQUAD c={0,0,0,0};
+ //Preparing Bitmap Info
+ BITMAPINFO bmInfo;
+ memset(&bmInfo.bmiHeader,0,sizeof(BITMAPINFOHEADER));
+ bmInfo.bmiHeader.biSize=sizeof(BITMAPINFOHEADER);
+ bmInfo.bmiHeader.biWidth=destw;
+ bmInfo.bmiHeader.biHeight=desth;
+ bmInfo.bmiHeader.biPlanes=1;
+ bmInfo.bmiHeader.biBitCount=24;
+ uint8_t *pbase; //points to the final dib
+ uint8_t *pdst; //current pixel from pbase
+ uint8_t *ppix; //current pixel from image
+ //get the background
+ HDC TmpDC=CreateCompatibleDC(hdc);
+ HBITMAP TmpBmp=CreateDIBSection(hdc,&bmInfo,DIB_RGB_COLORS,(void**)&pbase,0,0);
+ HGDIOBJ TmpObj=SelectObject(TmpDC,TmpBmp);
+
+ if (pbase){
+ int32_t xx,yy;
+ int32_t sx,sy;
+ float dx,dy;
+ uint8_t *psrc;
+
+ int32_t ew = ((((24 * destw) + 31) / 32) * 4);
+ int32_t ymax = paintbox.bottom;
+ int32_t xmin = paintbox.left;
+ float fx=(float)head.biWidth/(float)cx;
+ float fy=(float)head.biHeight/(float)cy;
+
+ for(yy=0;yy<desth;yy++){
+ dy = head.biHeight-(ymax-yy-y)*fy;
+ sy = max(0L,(int32_t)floor(dy));
+ psrc = info.pImage+sy*info.dwEffWidth;
+ if (bFlipY){
+ pdst = pbase+(desth-1-yy)*ew;
+ } else {
+ pdst = pbase+yy*ew;
+ }
+ for(xx=0;xx<destw;xx++){
+ dx = (xx+xmin-x)*fx;
+ sx = max(0L,(int32_t)floor(dx));
+#if CXIMAGE_SUPPORT_INTERPOLATION
+ if (bSmooth){
+ if (fx > 1 && fy > 1) {
+ c = GetAreaColorInterpolated(dx - 0.5f, dy - 0.5f, fx, fy, CxImage::IM_BILINEAR, CxImage::OM_REPEAT);
+ } else {
+ c = GetPixelColorInterpolated(dx - 0.5f, dy - 0.5f, CxImage::IM_BILINEAR, CxImage::OM_REPEAT);
+ }
+ } else
+#endif //CXIMAGE_SUPPORT_INTERPOLATION
+ {
+ if (head.biClrUsed){
+ c=GetPaletteColor(GetPixelIndex(sx,sy));
+ } else {
+ ppix = psrc + sx*3;
+ c.rgbBlue = *ppix++;
+ c.rgbGreen= *ppix++;
+ c.rgbRed = *ppix;
+ }
+ }
+ *pdst++=c.rgbBlue;
+ *pdst++=c.rgbGreen;
+ *pdst++=c.rgbRed;
+ }
+ }
+ }
+ //paint the image & cleanup
+ SetDIBitsToDevice(hdc,paintbox.left,paintbox.top,destw,desth,0,0,0,desth,pbase,&bmInfo,0);
+ DeleteObject(SelectObject(TmpDC,TmpObj));
+ DeleteDC(TmpDC);
+ }
+ } else { // draw image with transparent/alpha blending
+ //////////////////////////////////////////////////////////////////
+ //Alpha blend - Thanks to Florian Egel
+
+ //pixel informations
+ RGBQUAD c={0,0,0,0};
+ RGBQUAD ct = GetTransColor();
+ int32_t* pc = (int32_t*)&c;
+ int32_t* pct= (int32_t*)&ct;
+ int32_t cit = GetTransIndex();
+ int32_t ci = 0;
+
+ //Preparing Bitmap Info
+ BITMAPINFO bmInfo;
+ memset(&bmInfo.bmiHeader,0,sizeof(BITMAPINFOHEADER));
+ bmInfo.bmiHeader.biSize=sizeof(BITMAPINFOHEADER);
+ bmInfo.bmiHeader.biWidth=destw;
+ bmInfo.bmiHeader.biHeight=desth;
+ bmInfo.bmiHeader.biPlanes=1;
+ bmInfo.bmiHeader.biBitCount=24;
+
+ uint8_t *pbase; //points to the final dib
+ uint8_t *pdst; //current pixel from pbase
+ uint8_t *ppix; //current pixel from image
+
+ //get the background
+ HDC TmpDC=CreateCompatibleDC(hdc);
+ HBITMAP TmpBmp=CreateDIBSection(hdc,&bmInfo,DIB_RGB_COLORS,(void**)&pbase,0,0);
+ HGDIOBJ TmpObj=SelectObject(TmpDC,TmpBmp);
+ BitBlt(TmpDC,0,0,destw,desth,hdc,paintbox.left,paintbox.top,SRCCOPY);
+
+ if (pbase){
+ int32_t xx,yy,alphaoffset,ix,iy;
+ uint8_t a,a1,*psrc;
+ int32_t ew = ((((24 * destw) + 31) / 32) * 4);
+ int32_t ymax = paintbox.bottom;
+ int32_t xmin = paintbox.left;
+
+ if (cx!=head.biWidth || cy!=head.biHeight){
+ //STRETCH
+ float fx=(float)head.biWidth/(float)cx;
+ float fy=(float)head.biHeight/(float)cy;
+ float dx,dy;
+ int32_t sx,sy;
+
+ for(yy=0;yy<desth;yy++){
+ dy = head.biHeight-(ymax-yy-y)*fy;
+ sy = max(0L,(int32_t)floor(dy));
+
+ alphaoffset = sy*head.biWidth;
+ if (bFlipY){
+ pdst = pbase+(desth-1-yy)*ew;
+ } else {
+ pdst = pbase + yy*ew;
+ }
+ psrc = info.pImage + sy*info.dwEffWidth;
+
+ for(xx=0;xx<destw;xx++){
+ dx = (xx+xmin-x)*fx;
+ sx = max(0L,(int32_t)floor(dx));
+
+ if (bAlpha) a=pAlpha[alphaoffset+sx]; else a=255;
+ a =(uint8_t)((a*(1+info.nAlphaMax))>>8);
+
+ if (head.biClrUsed){
+ ci = GetPixelIndex(sx,sy);
+#if CXIMAGE_SUPPORT_INTERPOLATION
+ if (bSmooth){
+ if (fx > 1 && fy > 1) {
+ c = GetAreaColorInterpolated(dx - 0.5f, dy - 0.5f, fx, fy, CxImage::IM_BILINEAR, CxImage::OM_REPEAT);
+ } else {
+ c = GetPixelColorInterpolated(dx - 0.5f, dy - 0.5f, CxImage::IM_BILINEAR, CxImage::OM_REPEAT);
+ }
+ } else
+#endif //CXIMAGE_SUPPORT_INTERPOLATION
+ {
+ c = GetPaletteColor(GetPixelIndex(sx,sy));
+ }
+ if (info.bAlphaPaletteEnabled){
+ a = (uint8_t)((a*(1+c.rgbReserved))>>8);
+ }
+ } else {
+#if CXIMAGE_SUPPORT_INTERPOLATION
+ if (bSmooth){
+ if (fx > 1 && fy > 1) {
+ c = GetAreaColorInterpolated(dx - 0.5f, dy - 0.5f, fx, fy, CxImage::IM_BILINEAR, CxImage::OM_REPEAT);
+ } else {
+ c = GetPixelColorInterpolated(dx - 0.5f, dy - 0.5f, CxImage::IM_BILINEAR, CxImage::OM_REPEAT);
+ }
+ } else
+#endif //CXIMAGE_SUPPORT_INTERPOLATION
+ {
+ ppix = psrc + sx*3;
+ c.rgbBlue = *ppix++;
+ c.rgbGreen= *ppix++;
+ c.rgbRed = *ppix;
+ }
+ }
+ //if (*pc!=*pct || !bTransparent){
+ //if ((head.biClrUsed && ci!=cit) || ((!head.biClrUsed||bSmooth) && *pc!=*pct) || !bTransparent){
+ if ((head.biClrUsed && ci!=cit) || (!head.biClrUsed && *pc!=*pct) || !bTransparent){
+ // DJT, assume many pixels are fully transparent or opaque and thus avoid multiplication
+ if (a == 0) { // Transparent, retain dest
+ pdst+=3;
+ } else if (a == 255) { // opaque, ignore dest
+ *pdst++= c.rgbBlue;
+ *pdst++= c.rgbGreen;
+ *pdst++= c.rgbRed;
+ } else { // semi transparent
+ a1=(uint8_t)~a;
+ *pdst++=(uint8_t)((*pdst * a1 + a * c.rgbBlue)>>8);
+ *pdst++=(uint8_t)((*pdst * a1 + a * c.rgbGreen)>>8);
+ *pdst++=(uint8_t)((*pdst * a1 + a * c.rgbRed)>>8);
+ }
+ } else {
+ pdst+=3;
+ }
+ }
+ }
+ } else {
+ //NORMAL
+ iy=head.biHeight-ymax+y;
+ for(yy=0;yy<desth;yy++,iy++){
+ alphaoffset=iy*head.biWidth;
+ ix=xmin-x;
+ if (bFlipY){
+ pdst = pbase+(desth-1-yy)*ew;
+ } else {
+ pdst = pbase+yy*ew;
+ }
+ ppix=info.pImage+iy*info.dwEffWidth+ix*3;
+ for(xx=0;xx<destw;xx++,ix++){
+
+ if (bAlpha) a=pAlpha[alphaoffset+ix]; else a=255;
+ a = (uint8_t)((a*(1+info.nAlphaMax))>>8);
+
+ if (head.biClrUsed){
+ ci = GetPixelIndex(ix,iy);
+ c = GetPaletteColor((uint8_t)ci);
+ if (info.bAlphaPaletteEnabled){
+ a = (uint8_t)((a*(1+c.rgbReserved))>>8);
+ }
+ } else {
+ c.rgbBlue = *ppix++;
+ c.rgbGreen= *ppix++;
+ c.rgbRed = *ppix++;
+ }
+
+ //if (*pc!=*pct || !bTransparent){
+ if ((head.biClrUsed && ci!=cit) || (!head.biClrUsed && *pc!=*pct) || !bTransparent){
+ // DJT, assume many pixels are fully transparent or opaque and thus avoid multiplication
+ if (a == 0) { // Transparent, retain dest
+ pdst+=3;
+ } else if (a == 255) { // opaque, ignore dest
+ *pdst++= c.rgbBlue;
+ *pdst++= c.rgbGreen;
+ *pdst++= c.rgbRed;
+ } else { // semi transparent
+ a1=(uint8_t)~a;
+ *pdst++=(uint8_t)((*pdst * a1 + a * c.rgbBlue)>>8);
+ *pdst++=(uint8_t)((*pdst * a1 + a * c.rgbGreen)>>8);
+ *pdst++=(uint8_t)((*pdst * a1 + a * c.rgbRed)>>8);
+ }
+ } else {
+ pdst+=3;
+ }
+ }
+ }
+ }
+ }
+ //paint the image & cleanup
+ SetDIBitsToDevice(hdc,paintbox.left,paintbox.top,destw,desth,0,0,0,desth,pbase,&bmInfo,0);
+ DeleteObject(SelectObject(TmpDC,TmpObj));
+ DeleteDC(TmpDC);
+ }
+
+#if !defined (_WIN32_WCE)
+ if (pClipRect){ // (experimental)
+ HRGN rgn = CreateRectRgnIndirect(&mainbox);
+ ExtSelectClipRgn(hdc,rgn,RGN_OR);
+ DeleteObject(rgn);
+ }
+#endif
+
+ ::RestoreDC(hdc,hdc_Restore);
+ return 1;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * renders the image into a HBITMAP handle
+ * \param hdc : destination device context
+ * \param x,y : (optional) offset
+ * \param cx,cy : (optional) size.
+ * - If cx or cy are not specified (or less than 0), the normal width or height will be used
+ * - If cx or cy are different than width or height, the image will be stretched
+ * \param pClipRect : limit the drawing operations inside a given rectangle in the output device context.
+ * \param bSmooth : activates a bilinear filter that will enhance the appearence for zommed pictures.
+ * Quite slow. Needs CXIMAGE_SUPPORT_INTERPOLATION.
+ * \return HBITMAP handle, NULL in case of error
+ * \sa MakeBitmap
+ */
+HBITMAP CxImage::Draw2HBITMAP(HDC hdc, int32_t x, int32_t y, int32_t cx, int32_t cy, RECT* pClipRect, bool bSmooth)
+{
+ if((pDib==0)||(hdc==0)||(cx==0)||(cy==0)||(!info.bEnabled)) return 0;
+
+ if (cx < 0) cx = head.biWidth;
+ if (cy < 0) cy = head.biHeight;
+ bool bTransparent = info.nBkgndIndex >= 0;
+ bool bAlpha = pAlpha != 0;
+
+ //required for MM_ANISOTROPIC, MM_HIENGLISH, and similar modes [Greg Peatfield]
+ int32_t hdc_Restore = ::SaveDC(hdc);
+ if (!hdc_Restore)
+ return 0;
+
+#if !defined (_WIN32_WCE)
+ RECT mainbox; // (experimental)
+ if (pClipRect){
+ GetClipBox(hdc,&mainbox);
+ HRGN rgn = CreateRectRgnIndirect(pClipRect);
+ ExtSelectClipRgn(hdc,rgn,RGN_AND);
+ DeleteObject(rgn);
+ }
+#endif
+
+ HBITMAP TmpBmp;
+
+ //find the smallest area to paint
+ RECT clipbox,paintbox;
+ GetClipBox(hdc,&clipbox);
+
+ paintbox.top = min(clipbox.bottom,max(clipbox.top,y));
+ paintbox.left = min(clipbox.right,max(clipbox.left,x));
+ paintbox.right = max(clipbox.left,min(clipbox.right,x+cx));
+ paintbox.bottom = max(clipbox.top,min(clipbox.bottom,y+cy));
+
+ int32_t destw = paintbox.right - paintbox.left;
+ int32_t desth = paintbox.bottom - paintbox.top;
+
+ if (!(bTransparent || bAlpha || info.bAlphaPaletteEnabled)){
+ if (cx==head.biWidth && cy==head.biHeight){ //NORMAL
+#if !defined (_WIN32_WCE)
+ SetStretchBltMode(hdc,COLORONCOLOR);
+#endif
+ SetDIBitsToDevice(hdc, x, y, cx, cy, 0, 0, 0, cy,
+ info.pImage,(BITMAPINFO*)pDib,DIB_RGB_COLORS);
+ } else { //STRETCH
+ //pixel informations
+ RGBQUAD c={0,0,0,0};
+ //Preparing Bitmap Info
+ BITMAPINFO bmInfo;
+ memset(&bmInfo.bmiHeader,0,sizeof(BITMAPINFOHEADER));
+ bmInfo.bmiHeader.biSize=sizeof(BITMAPINFOHEADER);
+ bmInfo.bmiHeader.biWidth=destw;
+ bmInfo.bmiHeader.biHeight=desth;
+ bmInfo.bmiHeader.biPlanes=1;
+ bmInfo.bmiHeader.biBitCount=24;
+ uint8_t *pbase; //points to the final dib
+ uint8_t *pdst; //current pixel from pbase
+ uint8_t *ppix; //current pixel from image
+ //get the background
+ HDC TmpDC=CreateCompatibleDC(hdc);
+ TmpBmp=CreateDIBSection(hdc,&bmInfo,DIB_RGB_COLORS,(void**)&pbase,0,0);
+ HGDIOBJ TmpObj=SelectObject(TmpDC,TmpBmp);
+
+ if (pbase){
+ int32_t xx,yy;
+ int32_t sx,sy;
+ float dx,dy;
+ uint8_t *psrc;
+
+ int32_t ew = ((((24 * destw) + 31) / 32) * 4);
+ int32_t ymax = paintbox.bottom;
+ int32_t xmin = paintbox.left;
+ float fx=(float)head.biWidth/(float)cx;
+ float fy=(float)head.biHeight/(float)cy;
+
+ for(yy=0;yy<desth;yy++){
+ dy = head.biHeight-(ymax-yy-y)*fy;
+ sy = max(0L,(int32_t)floor(dy));
+ psrc = info.pImage+sy*info.dwEffWidth;
+ pdst = pbase+yy*ew;
+ for(xx=0;xx<destw;xx++){
+ dx = (xx+xmin-x)*fx;
+ sx = max(0L,(int32_t)floor(dx));
+#if CXIMAGE_SUPPORT_INTERPOLATION
+ if (bSmooth){
+ if (fx > 1 && fy > 1) {
+ c = GetAreaColorInterpolated(dx - 0.5f, dy - 0.5f, fx, fy, CxImage::IM_BILINEAR, CxImage::OM_REPEAT);
+ } else {
+ c = GetPixelColorInterpolated(dx - 0.5f, dy - 0.5f, CxImage::IM_BILINEAR, CxImage::OM_REPEAT);
+ }
+ } else
+#endif //CXIMAGE_SUPPORT_INTERPOLATION
+ {
+ if (head.biClrUsed){
+ c=GetPaletteColor(GetPixelIndex(sx,sy));
+ } else {
+ ppix = psrc + sx*3;
+ c.rgbBlue = *ppix++;
+ c.rgbGreen= *ppix++;
+ c.rgbRed = *ppix;
+ }
+ }
+ *pdst++=c.rgbBlue;
+ *pdst++=c.rgbGreen;
+ *pdst++=c.rgbRed;
+ }
+ }
+ }
+ //cleanup
+ SelectObject(TmpDC,TmpObj);
+ DeleteDC(TmpDC);
+ }
+ } else { // draw image with transparent/alpha blending
+ //////////////////////////////////////////////////////////////////
+ //Alpha blend - Thanks to Florian Egel
+
+ //pixel informations
+ RGBQUAD c={0,0,0,0};
+ RGBQUAD ct = GetTransColor();
+ int32_t* pc = (int32_t*)&c;
+ int32_t* pct= (int32_t*)&ct;
+ int32_t cit = GetTransIndex();
+ int32_t ci = 0;
+
+ //Preparing Bitmap Info
+ BITMAPINFO bmInfo;
+ memset(&bmInfo.bmiHeader,0,sizeof(BITMAPINFOHEADER));
+ bmInfo.bmiHeader.biSize=sizeof(BITMAPINFOHEADER);
+ bmInfo.bmiHeader.biWidth=destw;
+ bmInfo.bmiHeader.biHeight=desth;
+ bmInfo.bmiHeader.biPlanes=1;
+ bmInfo.bmiHeader.biBitCount=24;
+
+ uint8_t *pbase; //points to the final dib
+ uint8_t *pdst; //current pixel from pbase
+ uint8_t *ppix; //current pixel from image
+
+ //get the background
+ HDC TmpDC=CreateCompatibleDC(hdc);
+ TmpBmp=CreateDIBSection(hdc,&bmInfo,DIB_RGB_COLORS,(void**)&pbase,0,0);
+ HGDIOBJ TmpObj=SelectObject(TmpDC,TmpBmp);
+ BitBlt(TmpDC,0,0,destw,desth,hdc,paintbox.left,paintbox.top,SRCCOPY);
+
+ if (pbase){
+ int32_t xx,yy,alphaoffset,ix,iy;
+ uint8_t a,a1,*psrc;
+ int32_t ew = ((((24 * destw) + 31) / 32) * 4);
+ int32_t ymax = paintbox.bottom;
+ int32_t xmin = paintbox.left;
+
+ if (cx!=head.biWidth || cy!=head.biHeight){
+ //STRETCH
+ float fx=(float)head.biWidth/(float)cx;
+ float fy=(float)head.biHeight/(float)cy;
+ float dx,dy;
+ int32_t sx,sy;
+
+ for(yy=0;yy<desth;yy++){
+ dy = head.biHeight-(ymax-yy-y)*fy;
+ sy = max(0L,(int32_t)floor(dy));
+
+ alphaoffset = sy*head.biWidth;
+ pdst = pbase + yy*ew;
+ psrc = info.pImage + sy*info.dwEffWidth;
+
+ for(xx=0;xx<destw;xx++){
+ dx = (xx+xmin-x)*fx;
+ sx = max(0L,(int32_t)floor(dx));
+
+ if (bAlpha) a=pAlpha[alphaoffset+sx]; else a=255;
+ a =(uint8_t)((a*(1+info.nAlphaMax))>>8);
+
+ if (head.biClrUsed){
+ ci = GetPixelIndex(sx,sy);
+#if CXIMAGE_SUPPORT_INTERPOLATION
+ if (bSmooth){
+ if (fx > 1 && fy > 1) {
+ c = GetAreaColorInterpolated(dx - 0.5f, dy - 0.5f, fx, fy, CxImage::IM_BILINEAR, CxImage::OM_REPEAT);
+ } else {
+ c = GetPixelColorInterpolated(dx - 0.5f, dy - 0.5f, CxImage::IM_BILINEAR, CxImage::OM_REPEAT);
+ }
+ } else
+#endif //CXIMAGE_SUPPORT_INTERPOLATION
+ {
+ c = GetPaletteColor(GetPixelIndex(sx,sy));
+ }
+ if (info.bAlphaPaletteEnabled){
+ a = (uint8_t)((a*(1+c.rgbReserved))>>8);
+ }
+ } else {
+#if CXIMAGE_SUPPORT_INTERPOLATION
+ if (bSmooth){
+ if (fx > 1 && fy > 1) {
+ c = GetAreaColorInterpolated(dx - 0.5f, dy - 0.5f, fx, fy, CxImage::IM_BILINEAR, CxImage::OM_REPEAT);
+ } else {
+ c = GetPixelColorInterpolated(dx - 0.5f, dy - 0.5f, CxImage::IM_BILINEAR, CxImage::OM_REPEAT);
+ }
+ } else
+#endif //CXIMAGE_SUPPORT_INTERPOLATION
+ {
+ ppix = psrc + sx*3;
+ c.rgbBlue = *ppix++;
+ c.rgbGreen= *ppix++;
+ c.rgbRed = *ppix;
+ }
+ }
+ //if (*pc!=*pct || !bTransparent){
+ //if ((head.biClrUsed && ci!=cit) || ((!head.biClrUsed||bSmooth) && *pc!=*pct) || !bTransparent){
+ if ((head.biClrUsed && ci!=cit) || (!head.biClrUsed && *pc!=*pct) || !bTransparent){
+ // DJT, assume many pixels are fully transparent or opaque and thus avoid multiplication
+ if (a == 0) { // Transparent, retain dest
+ pdst+=3;
+ } else if (a == 255) { // opaque, ignore dest
+ *pdst++= c.rgbBlue;
+ *pdst++= c.rgbGreen;
+ *pdst++= c.rgbRed;
+ } else { // semi transparent
+ a1=(uint8_t)~a;
+ *pdst++=(uint8_t)((*pdst * a1 + a * c.rgbBlue)>>8);
+ *pdst++=(uint8_t)((*pdst * a1 + a * c.rgbGreen)>>8);
+ *pdst++=(uint8_t)((*pdst * a1 + a * c.rgbRed)>>8);
+ }
+ } else {
+ pdst+=3;
+ }
+ }
+ }
+ } else {
+ //NORMAL
+ iy=head.biHeight-ymax+y;
+ for(yy=0;yy<desth;yy++,iy++){
+ alphaoffset=iy*head.biWidth;
+ ix=xmin-x;
+ pdst=pbase+yy*ew;
+ ppix=info.pImage+iy*info.dwEffWidth+ix*3;
+ for(xx=0;xx<destw;xx++,ix++){
+
+ if (bAlpha) a=pAlpha[alphaoffset+ix]; else a=255;
+ a = (uint8_t)((a*(1+info.nAlphaMax))>>8);
+
+ if (head.biClrUsed){
+ ci = GetPixelIndex(ix,iy);
+ c = GetPaletteColor((uint8_t)ci);
+ if (info.bAlphaPaletteEnabled){
+ a = (uint8_t)((a*(1+c.rgbReserved))>>8);
+ }
+ } else {
+ c.rgbBlue = *ppix++;
+ c.rgbGreen= *ppix++;
+ c.rgbRed = *ppix++;
+ }
+
+ //if (*pc!=*pct || !bTransparent){
+ if ((head.biClrUsed && ci!=cit) || (!head.biClrUsed && *pc!=*pct) || !bTransparent){
+ // DJT, assume many pixels are fully transparent or opaque and thus avoid multiplication
+ if (a == 0) { // Transparent, retain dest
+ pdst+=3;
+ } else if (a == 255) { // opaque, ignore dest
+ *pdst++= c.rgbBlue;
+ *pdst++= c.rgbGreen;
+ *pdst++= c.rgbRed;
+ } else { // semi transparent
+ a1=(uint8_t)~a;
+ *pdst++=(uint8_t)((*pdst * a1 + a * c.rgbBlue)>>8);
+ *pdst++=(uint8_t)((*pdst * a1 + a * c.rgbGreen)>>8);
+ *pdst++=(uint8_t)((*pdst * a1 + a * c.rgbRed)>>8);
+ }
+ } else {
+ pdst+=3;
+ }
+ }
+ }
+ }
+ }
+ //cleanup
+ SelectObject(TmpDC,TmpObj);
+ DeleteDC(TmpDC);
+ }
+
+#if !defined (_WIN32_WCE)
+ if (pClipRect){ // (experimental)
+ HRGN rgn = CreateRectRgnIndirect(&mainbox);
+ ExtSelectClipRgn(hdc,rgn,RGN_OR);
+ DeleteObject(rgn);
+ }
+#endif
+
+ ::RestoreDC(hdc,hdc_Restore);
+ return TmpBmp;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+int32_t CxImage::Draw2(HDC hdc, const RECT& rect)
+{
+ return Draw2(hdc, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top);
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Draws (stretch) the image with single transparency support
+ * \param hdc : destination device context
+ * \param x,y : (optional) offset
+ * \param cx,cy : (optional) size.
+ * - If cx or cy are not specified (or less than 0), the normal width or height will be used
+ * - If cx or cy are different than width or height, the image will be stretched
+ *
+ * \return true if everything is ok
+ */
+int32_t CxImage::Draw2(HDC hdc, int32_t x, int32_t y, int32_t cx, int32_t cy)
+{
+ if((pDib==0)||(hdc==0)||(cx==0)||(cy==0)||(!info.bEnabled)) return 0;
+ if (cx < 0) cx = head.biWidth;
+ if (cy < 0) cy = head.biHeight;
+ bool bTransparent = (info.nBkgndIndex >= 0);
+
+ //required for MM_ANISOTROPIC, MM_HIENGLISH, and similar modes [Greg Peatfield]
+ int32_t hdc_Restore = ::SaveDC(hdc);
+ if (!hdc_Restore)
+ return 0;
+
+ if (!bTransparent){
+#if !defined (_WIN32_WCE)
+ SetStretchBltMode(hdc,COLORONCOLOR);
+#endif
+ StretchDIBits(hdc, x, y, cx, cy, 0, 0, head.biWidth, head.biHeight,
+ info.pImage,(BITMAPINFO*)pDib, DIB_RGB_COLORS,SRCCOPY);
+ } else {
+ // draw image with transparent background
+ const int32_t safe = 0; // or else GDI fails in the following - sometimes
+ RECT rcDst = {x+safe, y+safe, x+cx, y+cy};
+ if (RectVisible(hdc, &rcDst)){
+ /////////////////////////////////////////////////////////////////
+ // True Mask Method - Thanks to Paul Reynolds and Ron Gery
+ int32_t nWidth = head.biWidth;
+ int32_t nHeight = head.biHeight;
+ // Create two memory dcs for the image and the mask
+ HDC dcImage=CreateCompatibleDC(hdc);
+ HDC dcTrans=CreateCompatibleDC(hdc);
+ // Select the image into the appropriate dc
+ HBITMAP bm = CreateCompatibleBitmap(hdc, nWidth, nHeight);
+ HBITMAP pOldBitmapImage = (HBITMAP)SelectObject(dcImage,bm);
+#if !defined (_WIN32_WCE)
+ SetStretchBltMode(dcImage,COLORONCOLOR);
+#endif
+ StretchDIBits(dcImage, 0, 0, nWidth, nHeight, 0, 0, nWidth, nHeight,
+ info.pImage,(BITMAPINFO*)pDib,DIB_RGB_COLORS,SRCCOPY);
+
+ // Create the mask bitmap
+ HBITMAP bitmapTrans = CreateBitmap(nWidth, nHeight, 1, 1, NULL);
+ // Select the mask bitmap into the appropriate dc
+ HBITMAP pOldBitmapTrans = (HBITMAP)SelectObject(dcTrans, bitmapTrans);
+ // Build mask based on transparent colour
+ RGBQUAD rgbBG;
+ if (head.biBitCount<24) rgbBG = GetPaletteColor((uint8_t)info.nBkgndIndex);
+ else rgbBG = info.nBkgndColor;
+ COLORREF crColour = RGB(rgbBG.rgbRed, rgbBG.rgbGreen, rgbBG.rgbBlue);
+ COLORREF crOldBack = SetBkColor(dcImage,crColour);
+ BitBlt(dcTrans,0, 0, nWidth, nHeight, dcImage, 0, 0, SRCCOPY);
+
+ // Do the work - True Mask method - cool if not actual display
+ StretchBlt(hdc,x, y,cx,cy, dcImage, 0, 0, nWidth, nHeight, SRCINVERT);
+ StretchBlt(hdc,x, y,cx,cy, dcTrans, 0, 0, nWidth, nHeight, SRCAND);
+ StretchBlt(hdc,x, y,cx,cy, dcImage, 0, 0, nWidth, nHeight, SRCINVERT);
+
+ // Restore settings
+ SelectObject(dcImage,pOldBitmapImage);
+ SelectObject(dcTrans,pOldBitmapTrans);
+ SetBkColor(hdc,crOldBack);
+ DeleteObject( bitmapTrans ); // RG 29/01/2002
+ DeleteDC(dcImage);
+ DeleteDC(dcTrans);
+ DeleteObject(bm);
+ }
+ }
+ ::RestoreDC(hdc,hdc_Restore);
+ return 1;
+}
+////////////////////////////////////////////////////////////////////////////////
+int32_t CxImage::Stretch(HDC hdc, const RECT& rect, uint32_t dwRop)
+{
+ return Stretch(hdc, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top, dwRop);
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Stretch the image. Obsolete: use Draw() or Draw2()
+ * \param hdc : destination device context
+ * \param xoffset,yoffset : (optional) offset
+ * \param xsize,ysize : size.
+ * \param dwRop : raster operation code (see BitBlt documentation)
+ * \return true if everything is ok
+ */
+int32_t CxImage::Stretch(HDC hdc, int32_t xoffset, int32_t yoffset, int32_t xsize, int32_t ysize, uint32_t dwRop)
+{
+ if((pDib)&&(hdc)) {
+ //palette must be correctly filled
+#if !defined (_WIN32_WCE)
+ SetStretchBltMode(hdc,COLORONCOLOR);
+#endif
+ StretchDIBits(hdc, xoffset, yoffset,
+ xsize, ysize, 0, 0, head.biWidth, head.biHeight,
+ info.pImage,(BITMAPINFO*)pDib,DIB_RGB_COLORS,dwRop);
+ return 1;
+ }
+ return 0;
+}
+////////////////////////////////////////////////////////////////////////////////
+/**
+ * Tiles the device context in the specified rectangle with the image.
+ * \param hdc : destination device context
+ * \param rc : tiled rectangle in the output device context
+ * \return true if everything is ok
+ */
+int32_t CxImage::Tile(HDC hdc, RECT *rc)
+{
+ if((pDib)&&(hdc)&&(rc)) {
+ int32_t w = rc->right - rc->left;
+ int32_t h = rc->bottom - rc->top;
+ int32_t x,y,z;
+ int32_t bx=head.biWidth;
+ int32_t by=head.biHeight;
+ for (y = 0 ; y < h ; y += by){
+ if ((y+by)>h) by=h-y;
+ z=bx;
+ for (x = 0 ; x < w ; x += z){
+ if ((x+z)>w) z=w-x;
+ RECT r = {rc->left + x,rc->top + y,rc->left + x + z,rc->top + y + by};
+ Draw(hdc,rc->left + x, rc->top + y,-1,-1,&r);
+ }
+ }
+ return 1;
+ }
+ return 0;
+}
+////////////////////////////////////////////////////////////////////////////////
+// For UNICODE support: char -> TCHAR
+int32_t CxImage::DrawString(HDC hdc, int32_t x, int32_t y, const TCHAR* text, RGBQUAD color, const TCHAR* font, int32_t lSize, int32_t lWeight, uint8_t bItalic, uint8_t bUnderline, bool bSetAlpha)
+//int32_t CxImage::DrawString(HDC hdc, int32_t x, int32_t y, const char* text, RGBQUAD color, const char* font, int32_t lSize, int32_t lWeight, uint8_t bItalic, uint8_t bUnderline, bool bSetAlpha)
+{
+ if (IsValid()){
+ //get the background
+ HDC pDC;
+ if (hdc) pDC=hdc; else pDC = ::GetDC(0);
+ if (pDC==NULL) return 0;
+ HDC TmpDC=CreateCompatibleDC(pDC);
+ if (hdc==NULL) ::ReleaseDC(0, pDC);
+ if (TmpDC==NULL) return 0;
+ //choose the font
+ HFONT m_Font;
+ LOGFONT* m_pLF;
+ m_pLF=(LOGFONT*)calloc(1,sizeof(LOGFONT));
+ _tcsncpy(m_pLF->lfFaceName,font,31); // For UNICODE support
+ //strncpy(m_pLF->lfFaceName,font,31);
+ m_pLF->lfHeight=lSize;
+ m_pLF->lfWeight=lWeight;
+ m_pLF->lfItalic=bItalic;
+ m_pLF->lfUnderline=bUnderline;
+ m_Font=CreateFontIndirect(m_pLF);
+ //select the font in the dc
+ HFONT pOldFont=NULL;
+ if (m_Font)
+ pOldFont = (HFONT)SelectObject(TmpDC,m_Font);
+ else
+ pOldFont = (HFONT)SelectObject(TmpDC,GetStockObject(DEFAULT_GUI_FONT));
+
+ //Set text color
+ SetTextColor(TmpDC,RGB(255,255,255));
+ SetBkColor(TmpDC,RGB(0,0,0));
+ //draw the text
+ SetBkMode(TmpDC,OPAQUE);
+ //Set text position;
+ RECT pos = {0,0,0,0};
+ //int32_t len = (int32_t)strlen(text);
+ int32_t len = (int32_t)_tcslen(text); // For UNICODE support
+ ::DrawText(TmpDC,text,len,&pos,DT_CALCRECT);
+ pos.right+=pos.bottom; //for italics
+
+ //Preparing Bitmap Info
+ int32_t width=pos.right;
+ int32_t height=pos.bottom;
+ BITMAPINFO bmInfo;
+ memset(&bmInfo.bmiHeader,0,sizeof(BITMAPINFOHEADER));
+ bmInfo.bmiHeader.biSize=sizeof(BITMAPINFOHEADER);
+ bmInfo.bmiHeader.biWidth=width;
+ bmInfo.bmiHeader.biHeight=height;
+ bmInfo.bmiHeader.biPlanes=1;
+ bmInfo.bmiHeader.biBitCount=24;
+ uint8_t *pbase; //points to the final dib
+
+ HBITMAP TmpBmp=CreateDIBSection(TmpDC,&bmInfo,DIB_RGB_COLORS,(void**)&pbase,0,0);
+ HGDIOBJ TmpObj=SelectObject(TmpDC,TmpBmp);
+ memset(pbase,0,height*((((24 * width) + 31) / 32) * 4));
+
+ ::DrawText(TmpDC,text,len,&pos,0);
+
+ CxImage itext;
+ itext.CreateFromHBITMAP(TmpBmp);
+
+ y=head.biHeight-y-1;
+ for (int32_t ix=0;ix<width;ix++){
+ for (int32_t iy=0;iy<height;iy++){
+ if (itext.GetPixelColor(ix,iy).rgbBlue) SetPixelColor(x+ix,y+iy,color,bSetAlpha);
+ }
+ }
+
+ //cleanup
+ if (pOldFont) SelectObject(TmpDC,pOldFont);
+ DeleteObject(m_Font);
+ free(m_pLF);
+ DeleteObject(SelectObject(TmpDC,TmpObj));
+ DeleteDC(TmpDC);
+ }
+
+ return 1;
+}
+////////////////////////////////////////////////////////////////////////////////
+// <VATI>
+int32_t CxImage::DrawStringEx(HDC hdc, int32_t x, int32_t y, CXTEXTINFO *pTextType, bool bSetAlpha )
+{
+ if (!IsValid())
+ return -1;
+
+ //get the background
+ HDC pDC;
+ if (hdc) pDC=hdc; else pDC = ::GetDC(0);
+ if (pDC==NULL) return 0;
+ HDC TmpDC=CreateCompatibleDC(pDC);
+ if (hdc==NULL) ::ReleaseDC(0, pDC);
+ if (TmpDC==NULL) return 0;
+
+ //choose the font
+ HFONT m_Font;
+ m_Font=CreateFontIndirect( &pTextType->lfont );
+
+ // get colors in RGBQUAD
+ RGBQUAD p_forecolor = RGBtoRGBQUAD(pTextType->fcolor);
+ RGBQUAD p_backcolor = RGBtoRGBQUAD(pTextType->bcolor);
+
+ // check alignment and re-set default if necessary
+ if ( pTextType->align != DT_CENTER &&
+ pTextType->align != DT_LEFT &&
+ pTextType->align != DT_RIGHT )
+ pTextType->align = DT_CENTER;
+
+ // check rounding radius and re-set default if necessary
+ if ( pTextType->b_round > 50 )
+ pTextType->b_round = 10;
+
+ // check opacity and re-set default if necessary
+ if ( pTextType->b_opacity > 1. || pTextType->b_opacity < .0 )
+ pTextType->b_opacity = 0.;
+
+ //select the font in the dc
+ HFONT pOldFont=NULL;
+ if (m_Font)
+ pOldFont = (HFONT)SelectObject(TmpDC,m_Font);
+ else
+ pOldFont = (HFONT)SelectObject(TmpDC,GetStockObject(DEFAULT_GUI_FONT));
+
+ //Set text color
+ SetTextColor(TmpDC,RGB(255,255,255));
+ SetBkColor(TmpDC,RGB(0,0,0));
+ SetBkMode(TmpDC,OPAQUE);
+ //Set text position;
+ RECT pos = {0,0,0,0};
+
+ // get text length and number of lines
+ int32_t i=0, numlines=1, len=(int32_t)_tcsclen(pTextType->text);
+ while (i<len)
+ {
+ if ( pTextType->text[i++]==13 )
+ numlines++;
+ }
+
+ ::DrawText(TmpDC, pTextType->text, len, &pos, /*DT_EDITCONTROL|DT_EXTERNALLEADING|*/DT_NOPREFIX | DT_CALCRECT );
+
+ // increase only if it's really italics, and only one line height
+ if ( pTextType->lfont.lfItalic )
+ pos.right += pos.bottom/2/numlines;
+
+ // background frame and rounding radius
+ int32_t frame = 0, roundR = 0;
+ if ( pTextType->opaque )
+ {
+ roundR= (int32_t)(pos.bottom/numlines * pTextType->b_round / 100 ) ;
+ frame = (int32_t)(/*3.5 + */0.29289*roundR ) ;
+ pos.right += pos.bottom/numlines/3 ; // JUST FOR BEAUTY
+ }
+
+ //Preparing Bitmap Info
+ int32_t width=pos.right +frame*2;
+ int32_t height=pos.bottom +frame*2;
+ BITMAPINFO bmInfo;
+ memset(&bmInfo.bmiHeader,0,sizeof(BITMAPINFOHEADER));
+ bmInfo.bmiHeader.biSize=sizeof(BITMAPINFOHEADER);
+ bmInfo.bmiHeader.biWidth=width;
+ bmInfo.bmiHeader.biHeight=height;
+ bmInfo.bmiHeader.biPlanes=1;
+ bmInfo.bmiHeader.biBitCount=24;
+ uint8_t *pbase; //points to the final dib
+
+ HBITMAP TmpBmp=CreateDIBSection(TmpDC,&bmInfo,DIB_RGB_COLORS,(void**)&pbase,0,0);
+ HGDIOBJ TmpObj=SelectObject(TmpDC,TmpBmp);
+ memset(pbase,0,height*((((24 * width) + 31) / 32) * 4));
+
+ ::DrawText(TmpDC,pTextType->text,len, &pos, /*DT_EDITCONTROL|DT_EXTERNALLEADING|*/DT_NOPREFIX| pTextType->align );
+
+ CxImage itext;
+ itext.CreateFromHBITMAP(TmpBmp);
+ y=head.biHeight-y-1;
+
+ itext.Negative();
+
+#if CXIMAGE_SUPPORT_DSP
+ if (pTextType->smooth==FALSE){
+ itext.Threshold(128);
+ } else {
+ //itext.TextBlur();
+ }
+#endif
+
+ //move the insertion point according to alignment type
+ // DT_CENTER: cursor points to the center of text rectangle
+ // DT_RIGHT: cursor points to right side end of text rectangle
+ // DT_LEFT: cursor points to left end of text rectangle
+ if ( pTextType->align == DT_CENTER )
+ x -= width/2;
+ else if ( pTextType->align == DT_RIGHT )
+ x -= width;
+ if (x<0) x=0;
+
+ //draw the background first, if it exists
+ int32_t ix,iy;
+ if ( pTextType->opaque )
+ {
+ int32_t ixf=0;
+ for (ix=0;ix<width;ix++)
+ {
+ if ( ix<=roundR )
+ ixf = (int32_t)(.5+roundR-sqrt((float)(roundR*roundR-(ix-roundR)*(ix-roundR))));
+ else if ( ix>=width-roundR-1 )
+ ixf = (int32_t)(.5+roundR-sqrt((float)(roundR*roundR-(width-1-ix-roundR)*(width-1-ix-roundR))));
+ else
+ ixf=0;
+
+ for (iy=0;iy<height;iy++)
+ {
+ if ( (ix<=roundR && ( iy > height-ixf-1 || iy < ixf )) ||
+ (ix>=width-roundR-1 && ( iy > height-ixf-1 || iy < ixf )) )
+ continue;
+ else
+ if ( pTextType->b_opacity > 0.0 && pTextType->b_opacity < 1.0 )
+ {
+ RGBQUAD bcolor, pcolor;
+ // calculate a transition color from original image to background color:
+ pcolor = GetPixelColor(x+ix,y+iy);
+ bcolor.rgbBlue = (uint8_t)(pTextType->b_opacity * pcolor.rgbBlue + (1.0-pTextType->b_opacity) * p_backcolor.rgbBlue );
+ bcolor.rgbRed = (uint8_t)(pTextType->b_opacity * pcolor.rgbRed + (1.0-pTextType->b_opacity) * p_backcolor.rgbRed ) ;
+ bcolor.rgbGreen = (uint8_t)(pTextType->b_opacity * pcolor.rgbGreen + (1.0-pTextType->b_opacity) * p_backcolor.rgbGreen ) ;
+ bcolor.rgbReserved = 0;
+ SetPixelColor(x+ix,y+iy,bcolor,bSetAlpha);
+ }
+ else
+ SetPixelColor(x+ix,y+iy,p_backcolor,bSetAlpha);
+ }
+ }
+ }
+
+ // draw the text itself
+ for (ix=0;ix<width;ix++)
+ {
+ for (iy=0;iy<height;iy++)
+ {
+ RGBQUAD pcolor = GetPixelColor(x+ix,y+iy);
+ RGBQUAD tcolor = itext.GetPixelColor(ix,iy);
+ if (tcolor.rgbBlue!=255){
+ float a = tcolor.rgbBlue/255.0f;
+ pcolor.rgbBlue = (uint8_t)(a * (pcolor.rgbBlue - p_forecolor.rgbBlue) + p_forecolor.rgbBlue );
+ pcolor.rgbRed = (uint8_t)(a * (pcolor.rgbRed - p_forecolor.rgbRed) + p_forecolor.rgbRed ) ;
+ pcolor.rgbGreen = (uint8_t)(a * (pcolor.rgbGreen - p_forecolor.rgbGreen) + p_forecolor.rgbGreen );
+ pcolor.rgbReserved = 0;
+ SetPixelColor(x+ix+frame,y+iy-frame,pcolor,bSetAlpha);
+ //SetPixelColor(x+ix+frame,y+iy-frame,p_forecolor,bSetAlpha);
+ }
+ }
+ }
+
+ //cleanup
+ if (pOldFont) SelectObject(TmpDC,pOldFont);
+ DeleteObject(m_Font);
+ DeleteObject(SelectObject(TmpDC,TmpObj));
+ DeleteDC(TmpDC);
+ return 1;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+void CxImage::InitTextInfo( CXTEXTINFO *txt )
+{
+
+ memset( txt, 0, sizeof(CXTEXTINFO));
+
+ // LOGFONT defaults
+ txt->lfont.lfHeight = -36;
+ txt->lfont.lfCharSet = EASTEUROPE_CHARSET; // just for Central-European users
+ txt->lfont.lfWeight = FW_NORMAL;
+ txt->lfont.lfWidth = 0;
+ txt->lfont.lfEscapement = 0;
+ txt->lfont.lfOrientation = 0;
+ txt->lfont.lfItalic = FALSE;
+ txt->lfont.lfUnderline = FALSE;
+ txt->lfont.lfStrikeOut = FALSE;
+ txt->lfont.lfOutPrecision = OUT_DEFAULT_PRECIS;
+ txt->lfont.lfClipPrecision = CLIP_DEFAULT_PRECIS;
+ txt->lfont.lfQuality = PROOF_QUALITY;
+ txt->lfont.lfPitchAndFamily= DEFAULT_PITCH | FF_DONTCARE ;
+ _stprintf( txt->lfont.lfFaceName, _T("Arial")); //use TCHAR mappings <Cesar M>
+
+ // initial colors
+ txt->fcolor = RGB( 255,255,160 ); // default foreground: light goldyellow
+ txt->bcolor = RGB( 0, 80,160 ); // default background: light blue
+
+ // background
+ txt->opaque = TRUE; // text has a non-transparent background;
+ txt->smooth = TRUE;
+ txt->b_opacity = 0.0; // default: opaque background
+ txt->b_outline = 0; // default: no outline (OUTLINE NOT IMPLEMENTED AT THIS TIME)
+ txt->b_round = 20; // default: rounding radius is 20% of the rectangle height
+ // the text
+ _stprintf( txt->text, _T("Sample Text 01234õû")); // text use TCHAR mappings <Cesar M>
+ txt->align = DT_CENTER;
+ return;
+}
+
+#if CXIMAGE_SUPPORT_LAYERS
+////////////////////////////////////////////////////////////////////////////////
+int32_t CxImage::LayerDrawAll(HDC hdc, const RECT& rect, RECT* pClipRect, bool bSmooth)
+{
+ return LayerDrawAll(hdc, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top, pClipRect,bSmooth);
+}
+////////////////////////////////////////////////////////////////////////////////
+int32_t CxImage::LayerDrawAll(HDC hdc, int32_t x, int32_t y, int32_t cx, int32_t cy, RECT* pClipRect, bool bSmooth)
+{
+ int32_t n=0;
+ CxImage* pLayer;
+ while(pLayer=GetLayer(n++)){
+ if (pLayer->Draw(hdc,x+pLayer->info.xOffset,y+pLayer->info.yOffset,cx,cy,pClipRect,bSmooth)==0)
+ return 0;
+ if (pLayer->LayerDrawAll(hdc,x+pLayer->info.xOffset,y+pLayer->info.yOffset,cx,cy,pClipRect,bSmooth)==0)
+ return 0;
+ }
+ return 1;
+}
+#endif //CXIMAGE_SUPPORT_LAYERS
+
+////////////////////////////////////////////////////////////////////////////////
+#endif //CXIMAGE_SUPPORT_WINDOWS
+////////////////////////////////////////////////////////////////////////////////
diff --git a/smelt/sdl/CxImage/xiofile.h b/smelt/sdl/CxImage/xiofile.h new file mode 100644 index 0000000..e05811e --- /dev/null +++ b/smelt/sdl/CxImage/xiofile.h @@ -0,0 +1,125 @@ +#if !defined(__xiofile_h)
+#define __xiofile_h
+
+#include "xfile.h"
+//#include <TCHAR.h>
+
+class DLL_EXP CxIOFile : public CxFile
+ {
+public:
+ CxIOFile(FILE* fp = NULL)
+ {
+ m_fp = fp;
+ m_bCloseFile = (bool)(fp==0);
+ }
+
+ ~CxIOFile()
+ {
+ Close();
+ }
+//////////////////////////////////////////////////////////
+ bool Open(const TCHAR * filename, const TCHAR * mode)
+ {
+ if (m_fp) return false; // Can't re-open without closing first
+
+ m_fp = fopen(filename, mode);
+ if (!m_fp) return false;
+
+ m_bCloseFile = true;
+
+ return true;
+ }
+//////////////////////////////////////////////////////////
+ virtual bool Close()
+ {
+ int32_t iErr = 0;
+ if ( (m_fp) && (m_bCloseFile) ){
+ iErr = fclose(m_fp);
+ m_fp = NULL;
+ }
+ return (bool)(iErr==0);
+ }
+//////////////////////////////////////////////////////////
+ virtual size_t Read(void *buffer, size_t size, size_t count)
+ {
+ if (!m_fp) return 0;
+ return fread(buffer, size, count, m_fp);
+ }
+//////////////////////////////////////////////////////////
+ virtual size_t Write(const void *buffer, size_t size, size_t count)
+ {
+ if (!m_fp) return 0;
+ return fwrite(buffer, size, count, m_fp);
+ }
+//////////////////////////////////////////////////////////
+ virtual bool Seek(int32_t offset, int32_t origin)
+ {
+ if (!m_fp) return false;
+ return (bool)(fseek(m_fp, offset, origin) == 0);
+ }
+//////////////////////////////////////////////////////////
+ virtual int32_t Tell()
+ {
+ if (!m_fp) return 0;
+ return ftell(m_fp);
+ }
+//////////////////////////////////////////////////////////
+ virtual int32_t Size()
+ {
+ if (!m_fp) return -1;
+ int32_t pos,size;
+ pos = ftell(m_fp);
+ fseek(m_fp, 0, SEEK_END);
+ size = ftell(m_fp);
+ fseek(m_fp, pos,SEEK_SET);
+ return size;
+ }
+//////////////////////////////////////////////////////////
+ virtual bool Flush()
+ {
+ if (!m_fp) return false;
+ return (bool)(fflush(m_fp) == 0);
+ }
+//////////////////////////////////////////////////////////
+ virtual bool Eof()
+ {
+ if (!m_fp) return true;
+ return (bool)(feof(m_fp) != 0);
+ }
+//////////////////////////////////////////////////////////
+ virtual int32_t Error()
+ {
+ if (!m_fp) return -1;
+ return ferror(m_fp);
+ }
+//////////////////////////////////////////////////////////
+ virtual bool PutC(uint8_t c)
+ {
+ if (!m_fp) return false;
+ return (bool)(fputc(c, m_fp) == c);
+ }
+//////////////////////////////////////////////////////////
+ virtual int32_t GetC()
+ {
+ if (!m_fp) return EOF;
+ return getc(m_fp);
+ }
+//////////////////////////////////////////////////////////
+ virtual char * GetS(char *string, int32_t n)
+ {
+ if (!m_fp) return NULL;
+ return fgets(string,n,m_fp);
+ }
+//////////////////////////////////////////////////////////
+ virtual int32_t Scanf(const char *format, void* output)
+ {
+ if (!m_fp) return EOF;
+ return fscanf(m_fp, format, output);
+ }
+//////////////////////////////////////////////////////////
+protected:
+ FILE *m_fp;
+ bool m_bCloseFile;
+ };
+
+#endif
diff --git a/smelt/sdl/CxImage/xmemfile.cpp b/smelt/sdl/CxImage/xmemfile.cpp new file mode 100644 index 0000000..f235899 --- /dev/null +++ b/smelt/sdl/CxImage/xmemfile.cpp @@ -0,0 +1,213 @@ +#include "xmemfile.h"
+
+//////////////////////////////////////////////////////////
+CxMemFile::CxMemFile(uint8_t* pBuffer, uint32_t size)
+{
+ m_pBuffer = pBuffer;
+ m_Position = 0;
+ m_Size = m_Edge = size;
+ m_bFreeOnClose = (bool)(pBuffer==0);
+ m_bEOF = false;
+}
+//////////////////////////////////////////////////////////
+CxMemFile::~CxMemFile()
+{
+ Close();
+}
+//////////////////////////////////////////////////////////
+bool CxMemFile::Close()
+{
+ if ( (m_pBuffer) && (m_bFreeOnClose) ){
+ free(m_pBuffer);
+ m_pBuffer = NULL;
+ m_Size = 0;
+ }
+ return true;
+}
+//////////////////////////////////////////////////////////
+bool CxMemFile::Open()
+{
+ if (m_pBuffer) return false; // Can't re-open without closing first
+
+ m_Position = m_Size = m_Edge = 0;
+ m_pBuffer=(uint8_t*)malloc(1);
+ m_bFreeOnClose = true;
+
+ return (m_pBuffer!=0);
+}
+//////////////////////////////////////////////////////////
+uint8_t* CxMemFile::GetBuffer(bool bDetachBuffer)
+{
+ //can only detach, avoid inadvertantly attaching to
+ // memory that may not be ours [Jason De Arte]
+ if( bDetachBuffer )
+ m_bFreeOnClose = false;
+ return m_pBuffer;
+}
+//////////////////////////////////////////////////////////
+size_t CxMemFile::Read(void *buffer, size_t size, size_t count)
+{
+ if (buffer==NULL) return 0;
+
+ if (m_pBuffer==NULL) return 0;
+ if (m_Position >= (int32_t)m_Size){
+ m_bEOF = true;
+ return 0;
+ }
+
+ int32_t nCount = (int32_t)(count*size);
+ if (nCount == 0) return 0;
+
+ int32_t nRead;
+ if (m_Position + nCount > (int32_t)m_Size){
+ m_bEOF = true;
+ nRead = (m_Size - m_Position);
+ } else
+ nRead = nCount;
+
+ memcpy(buffer, m_pBuffer + m_Position, nRead);
+ m_Position += nRead;
+
+ return (size_t)(nRead/size);
+}
+//////////////////////////////////////////////////////////
+size_t CxMemFile::Write(const void *buffer, size_t size, size_t count)
+{
+ m_bEOF = false;
+ if (m_pBuffer==NULL) return 0;
+ if (buffer==NULL) return 0;
+
+ int32_t nCount = (int32_t)(count*size);
+ if (nCount == 0) return 0;
+
+ if (m_Position + nCount > m_Edge){
+ if (!Alloc(m_Position + nCount)){
+ return false;
+ }
+ }
+
+ memcpy(m_pBuffer + m_Position, buffer, nCount);
+
+ m_Position += nCount;
+
+ if (m_Position > (int32_t)m_Size) m_Size = m_Position;
+
+ return count;
+}
+//////////////////////////////////////////////////////////
+bool CxMemFile::Seek(int32_t offset, int32_t origin)
+{
+ m_bEOF = false;
+ if (m_pBuffer==NULL) return false;
+ int32_t lNewPos = m_Position;
+
+ if (origin == SEEK_SET) lNewPos = offset;
+ else if (origin == SEEK_CUR) lNewPos += offset;
+ else if (origin == SEEK_END) lNewPos = m_Size + offset;
+ else return false;
+
+ if (lNewPos < 0) lNewPos = 0;
+
+ m_Position = lNewPos;
+ return true;
+}
+//////////////////////////////////////////////////////////
+int32_t CxMemFile::Tell()
+{
+ if (m_pBuffer==NULL) return -1;
+ return m_Position;
+}
+//////////////////////////////////////////////////////////
+int32_t CxMemFile::Size()
+{
+ if (m_pBuffer==NULL) return -1;
+ return m_Size;
+}
+//////////////////////////////////////////////////////////
+bool CxMemFile::Flush()
+{
+ if (m_pBuffer==NULL) return false;
+ return true;
+}
+//////////////////////////////////////////////////////////
+bool CxMemFile::Eof()
+{
+ if (m_pBuffer==NULL) return true;
+ return m_bEOF;
+}
+//////////////////////////////////////////////////////////
+int32_t CxMemFile::Error()
+{
+ if (m_pBuffer==NULL) return -1;
+ return (m_Position > (int32_t)m_Size);
+}
+//////////////////////////////////////////////////////////
+bool CxMemFile::PutC(uint8_t c)
+{
+ m_bEOF = false;
+ if (m_pBuffer==NULL) return false;
+
+ if (m_Position >= m_Edge){
+ if (!Alloc(m_Position + 1)){
+ return false;
+ }
+ }
+
+ m_pBuffer[m_Position++] = c;
+
+ if (m_Position > (int32_t)m_Size) m_Size = m_Position;
+
+ return true;
+}
+//////////////////////////////////////////////////////////
+int32_t CxMemFile::GetC()
+{
+ if (m_pBuffer==NULL || m_Position >= (int32_t)m_Size){
+ m_bEOF = true;
+ return EOF;
+ }
+ return *(uint8_t*)((uint8_t*)m_pBuffer + m_Position++);
+}
+//////////////////////////////////////////////////////////
+char * CxMemFile::GetS(char *string, int32_t n)
+{
+ n--;
+ int32_t c,i=0;
+ while (i<n){
+ c = GetC();
+ if (c == EOF) return 0;
+ string[i++] = (char)c;
+ if (c == '\n') break;
+ }
+ string[i] = 0;
+ return string;
+}
+//////////////////////////////////////////////////////////
+int32_t CxMemFile::Scanf(const char *format, void* output)
+{
+ return 0;
+}
+//////////////////////////////////////////////////////////
+bool CxMemFile::Alloc(uint32_t dwNewLen)
+{
+ if (dwNewLen > (uint32_t)m_Edge)
+ {
+ // find new buffer size
+ uint32_t dwNewBufferSize = (uint32_t)(((dwNewLen>>16)+1)<<16);
+
+ // allocate new buffer
+ if (m_pBuffer == NULL) m_pBuffer = (uint8_t*)malloc(dwNewBufferSize);
+ else m_pBuffer = (uint8_t*)realloc(m_pBuffer, dwNewBufferSize);
+ // I own this buffer now (caller knows nothing about it)
+ m_bFreeOnClose = true;
+
+ m_Edge = dwNewBufferSize;
+ }
+ return (m_pBuffer!=0);
+}
+//////////////////////////////////////////////////////////
+void CxMemFile::Free()
+{
+ Close();
+}
+//////////////////////////////////////////////////////////
diff --git a/smelt/sdl/CxImage/xmemfile.h b/smelt/sdl/CxImage/xmemfile.h new file mode 100644 index 0000000..e132db3 --- /dev/null +++ b/smelt/sdl/CxImage/xmemfile.h @@ -0,0 +1,42 @@ +#if !defined(__xmemfile_h)
+#define __xmemfile_h
+
+#include "xfile.h"
+
+//////////////////////////////////////////////////////////
+class DLL_EXP CxMemFile : public CxFile
+{
+public:
+ CxMemFile(uint8_t* pBuffer = NULL, uint32_t size = 0);
+ ~CxMemFile();
+
+ bool Open();
+ uint8_t* GetBuffer(bool bDetachBuffer = true);
+
+ virtual bool Close();
+ virtual size_t Read(void *buffer, size_t size, size_t count);
+ virtual size_t Write(const void *buffer, size_t size, size_t count);
+ virtual bool Seek(int32_t offset, int32_t origin);
+ virtual int32_t Tell();
+ virtual int32_t Size();
+ virtual bool Flush();
+ virtual bool Eof();
+ virtual int32_t Error();
+ virtual bool PutC(uint8_t c);
+ virtual int32_t GetC();
+ virtual char * GetS(char *string, int32_t n);
+ virtual int32_t Scanf(const char *format, void* output);
+
+protected:
+ bool Alloc(uint32_t nBytes);
+ void Free();
+
+ uint8_t* m_pBuffer;
+ uint32_t m_Size;
+ bool m_bFreeOnClose;
+ int32_t m_Position; //current position
+ int32_t m_Edge; //buffer size
+ bool m_bEOF;
+};
+
+#endif
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