From c91847d549cc1c30eb15504a15ea9a6d5aa48165 Mon Sep 17 00:00:00 2001 From: "chirs241097@gmail.com" Date: Sun, 12 Jan 2014 14:43:14 +0000 Subject: --- hge/CxImage/ximajpg.h | 283 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 283 insertions(+) create mode 100644 hge/CxImage/ximajpg.h (limited to 'hge/CxImage/ximajpg.h') diff --git a/hge/CxImage/ximajpg.h b/hge/CxImage/ximajpg.h new file mode 100644 index 0000000..da21643 --- /dev/null +++ b/hge/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 + * + * original CImageJPG and CImageIterator implementation are: + * Copyright: (c) 1995, Alejandro Aguilar Sierra + * + * 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 + #include +#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 + */ + +#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 +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 -- cgit v1.2.3