diff options
Diffstat (limited to 'smelt/sdl/CxImage/ximajpg.cpp')
| -rw-r--r-- | smelt/sdl/CxImage/ximajpg.cpp | 538 |
1 files changed, 0 insertions, 538 deletions
diff --git a/smelt/sdl/CxImage/ximajpg.cpp b/smelt/sdl/CxImage/ximajpg.cpp deleted file mode 100644 index b66bf97..0000000 --- a/smelt/sdl/CxImage/ximajpg.cpp +++ /dev/null @@ -1,538 +0,0 @@ -/*
- * 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
-
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