diff options
Diffstat (limited to 'plugins/freeimage/Source/FreeImageToolkit/JPEGTransform.cpp')
| -rw-r--r-- | plugins/freeimage/Source/FreeImageToolkit/JPEGTransform.cpp | 410 |
1 files changed, 0 insertions, 410 deletions
diff --git a/plugins/freeimage/Source/FreeImageToolkit/JPEGTransform.cpp b/plugins/freeimage/Source/FreeImageToolkit/JPEGTransform.cpp deleted file mode 100644 index 5b5fcefe2b..0000000000 --- a/plugins/freeimage/Source/FreeImageToolkit/JPEGTransform.cpp +++ /dev/null @@ -1,410 +0,0 @@ -// ==========================================================
-// JPEG lossless transformations
-//
-// Design and implementation by
-// - Petr Pytelka (pyta@lightcomp.com)
-// - Hervé Drolon (drolon@infonie.fr)
-//
-// This file is part of FreeImage 3
-//
-// 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!
-// ==========================================================
-
-extern "C" {
-#define XMD_H
-#undef FAR
-#include <setjmp.h>
-
-#include "../LibJPEG/jinclude.h"
-#include "../LibJPEG/jpeglib.h"
-#include "../LibJPEG/jerror.h"
-#include "../LibJPEG/transupp.h"
-}
-
-#include "FreeImage.h"
-#include "Utilities.h"
-
-// ----------------------------------------------------------
-// IO filename handling
-// ----------------------------------------------------------
-
-typedef struct tagFilenameIO {
- const char *src_file;
- const char *dst_file;
- const wchar_t *wsrc_file;
- const wchar_t *wdst_file;
-} FilenameIO;
-
-// ----------------------------------------------------------
-// Error handling
-// ----------------------------------------------------------
-
-/**
- Receives control for a fatal error. Information sufficient to
- generate the error message has been stored in cinfo->err; call
- output_message to display it. Control must NOT return to the caller;
- generally this routine will exit() or longjmp() somewhere.
-*/
-METHODDEF(void)
-ls_jpeg_error_exit (j_common_ptr cinfo) {
- // always display the message
- (*cinfo->err->output_message)(cinfo);
-
- // allow JPEG with a premature end of file
- if((cinfo)->err->msg_parm.i[0] != 13) {
-
- // let the memory manager delete any temp files before we die
- jpeg_destroy(cinfo);
-
- throw FIF_JPEG;
- }
-}
-
-/**
- Actual output of any JPEG message. Note that this method does not know
- how to generate a message, only where to send it.
-*/
-METHODDEF(void)
-ls_jpeg_output_message (j_common_ptr cinfo) {
- char buffer[JMSG_LENGTH_MAX];
-
- // create the message
- (*cinfo->err->format_message)(cinfo, buffer);
- // send it to user's message proc
- FreeImage_OutputMessageProc(FIF_JPEG, buffer);
-}
-
-// ----------------------------------------------------------
-// Main program
-// ----------------------------------------------------------
-
-static BOOL
-LosslessTransform(const FilenameIO *filenameIO, FREE_IMAGE_JPEG_OPERATION operation, const char *crop, BOOL perfect) {
- // We assume all-in-memory processing and can therefore use only a
- // single file pointer for sequential input and output operation
- FILE *fp = NULL;
-
- // check for UNICODE filenames - previous structure filling was done before
- bool bUseUnicode = filenameIO && filenameIO->wsrc_file && filenameIO->wdst_file;
-
- // Set up the jpeglib structures
- jpeg_decompress_struct srcinfo;
- jpeg_compress_struct dstinfo;
- jpeg_error_mgr jsrcerr, jdsterr;
- jvirt_barray_ptr *src_coef_arrays = NULL;
- jvirt_barray_ptr *dst_coef_arrays = NULL;
- // Support for copying optional markers from source to destination file
- JCOPY_OPTION copyoption;
- // Image transformation options
- jpeg_transform_info transfoptions;
-
- // Initialize structures
- memset(&srcinfo, 0, sizeof(srcinfo));
- memset(&jsrcerr, 0, sizeof(jsrcerr));
- memset(&jdsterr, 0, sizeof(jdsterr));
- memset(&dstinfo, 0, sizeof(dstinfo));
- memset(&transfoptions, 0, sizeof(transfoptions));
-
- // Copy all extra markers from source file
- copyoption = JCOPYOPT_ALL;
-
- // Set up default JPEG parameters
- transfoptions.force_grayscale = FALSE;
- transfoptions.crop = FALSE;
-
- // Select the transform option
- switch(operation) {
- case FIJPEG_OP_FLIP_H: // horizontal flip
- transfoptions.transform = JXFORM_FLIP_H;
- break;
- case FIJPEG_OP_FLIP_V: // vertical flip
- transfoptions.transform = JXFORM_FLIP_V;
- break;
- case FIJPEG_OP_TRANSPOSE: // transpose across UL-to-LR axis
- transfoptions.transform = JXFORM_TRANSPOSE;
- break;
- case FIJPEG_OP_TRANSVERSE: // transpose across UR-to-LL axis
- transfoptions.transform = JXFORM_TRANSVERSE;
- break;
- case FIJPEG_OP_ROTATE_90: // 90-degree clockwise rotation
- transfoptions.transform = JXFORM_ROT_90;
- break;
- case FIJPEG_OP_ROTATE_180: // 180-degree rotation
- transfoptions.transform = JXFORM_ROT_180;
- break;
- case FIJPEG_OP_ROTATE_270: // 270-degree clockwise (or 90 ccw)
- transfoptions.transform = JXFORM_ROT_270;
- break;
- default:
- case FIJPEG_OP_NONE: // no transformation
- transfoptions.transform = JXFORM_NONE;
- break;
- }
- // (perfect == TRUE) ==> fail if there is non-transformable edge blocks
- transfoptions.perfect = (perfect == TRUE) ? TRUE : FALSE;
- // Drop non-transformable edge blocks: trim off any partial edge MCUs that the transform can't handle.
- transfoptions.trim = TRUE;
-
- try {
-
- // Initialize the JPEG decompression object with default error handling
- srcinfo.err = jpeg_std_error(&jsrcerr);
- srcinfo.err->error_exit = ls_jpeg_error_exit;
- srcinfo.err->output_message = ls_jpeg_output_message;
- jpeg_create_decompress(&srcinfo);
-
- // Initialize the JPEG compression object with default error handling
- dstinfo.err = jpeg_std_error(&jdsterr);
- dstinfo.err->error_exit = ls_jpeg_error_exit;
- dstinfo.err->output_message = ls_jpeg_output_message;
- jpeg_create_compress(&dstinfo);
-
- // crop option
- if(crop != NULL) {
- if(!jtransform_parse_crop_spec(&transfoptions, crop)) {
- FreeImage_OutputMessageProc(FIF_JPEG, "Bogus crop argument %s", crop);
- throw(1);
- }
- }
-
- // Open the input file
- if(bUseUnicode) {
-#ifdef _WIN32
- if((fp = _wfopen(filenameIO->wsrc_file, L"rb")) == NULL) {
- FreeImage_OutputMessageProc(FIF_JPEG, "Cannot open input file for reading");
- }
-#else
- fp = NULL;
-#endif // _WIN32
- } else {
- if((fp = fopen(filenameIO->src_file, "rb")) == NULL) {
- FreeImage_OutputMessageProc(FIF_JPEG, "Cannot open %s for reading", filenameIO->src_file);
- }
- }
- if(fp == NULL) {
- jpeg_destroy_compress(&dstinfo);
- jpeg_destroy_decompress(&srcinfo);
- return FALSE;
- }
-
- // Specify data source for decompression
- jpeg_stdio_src(&srcinfo, fp);
-
- // Enable saving of extra markers that we want to copy
- jcopy_markers_setup(&srcinfo, copyoption);
-
- // Read the file header
- jpeg_read_header(&srcinfo, TRUE);
-
- // Any space needed by a transform option must be requested before
- // jpeg_read_coefficients so that memory allocation will be done right
-
- // Prepare transformation workspace
- // Fails right away if perfect flag is TRUE and transformation is not perfect
- if( !jtransform_request_workspace(&srcinfo, &transfoptions) ) {
- FreeImage_OutputMessageProc(FIF_JPEG, "Transformation is not perfect");
- throw(1);
- }
-
- // Read source file as DCT coefficients
- src_coef_arrays = jpeg_read_coefficients(&srcinfo);
-
- // Initialize destination compression parameters from source values
- jpeg_copy_critical_parameters(&srcinfo, &dstinfo);
-
- // Adjust destination parameters if required by transform options;
- // also find out which set of coefficient arrays will hold the output
- dst_coef_arrays = jtransform_adjust_parameters(&srcinfo, &dstinfo, src_coef_arrays, &transfoptions);
-
- // Close the input file.
- // Note: we assume that jpeg_read_coefficients consumed all input
- // until JPEG_REACHED_EOI, and that jpeg_finish_decompress will
- // only consume more while (! cinfo->inputctl->eoi_reached).
- // We cannot call jpeg_finish_decompress here since we still need the
- // virtual arrays allocated from the source object for processing.
- fclose(fp);
-
- // Open the output file
- if(bUseUnicode) {
-#ifdef _WIN32
- if((fp = _wfopen(filenameIO->wdst_file, L"wb")) == NULL) {
- FreeImage_OutputMessageProc(FIF_JPEG, "Cannot open output file for writing");
- }
-#else
- fp = NULL;
-#endif // _WIN32
- } else {
- if((fp = fopen(filenameIO->dst_file, "wb")) == NULL) {
- FreeImage_OutputMessageProc(FIF_JPEG, "Cannot open %s for writing", filenameIO->dst_file);
- }
- }
- if(fp == NULL) {
- throw(1);
- }
-
- // Specify data destination for compression
- jpeg_stdio_dest(&dstinfo, fp);
-
- // Start compressor (note no image data is actually written here)
- jpeg_write_coefficients(&dstinfo, dst_coef_arrays);
-
- // Copy to the output file any extra markers that we want to preserve
- jcopy_markers_execute(&srcinfo, &dstinfo, copyoption);
-
- // Execute image transformation, if any
- jtransform_execute_transformation(&srcinfo, &dstinfo, src_coef_arrays, &transfoptions);
-
- // Finish compression and release memory
- jpeg_finish_compress(&dstinfo);
- jpeg_destroy_compress(&dstinfo);
- jpeg_finish_decompress(&srcinfo);
- jpeg_destroy_decompress(&srcinfo);
-
- // Close output file and return
- fclose(fp);
- }
- catch(...) {
- if(fp) fclose(fp);
- jpeg_destroy_compress(&dstinfo);
- jpeg_destroy_decompress(&srcinfo);
- return FALSE;
- }
-
- return TRUE;
-}
-
-// ----------------------------------------------------------
-// FreeImage interface
-// ----------------------------------------------------------
-
-BOOL DLL_CALLCONV
-FreeImage_JPEGTransform(const char *src_file, const char *dst_file, FREE_IMAGE_JPEG_OPERATION operation, BOOL perfect) {
- try {
- // check the src file format
- if(FreeImage_GetFileType(src_file) != FIF_JPEG) {
- throw FI_MSG_ERROR_MAGIC_NUMBER;
- }
-
- // setup IO
- FilenameIO filenameIO;
- memset(&filenameIO, 0, sizeof(FilenameIO));
- filenameIO.src_file = src_file;
- filenameIO.dst_file = dst_file;
-
- // perform the transformation
- return LosslessTransform(&filenameIO, operation, NULL, perfect);
-
- } catch(const char *text) {
- FreeImage_OutputMessageProc(FIF_JPEG, text);
- return FALSE;
- }
-}
-
-BOOL DLL_CALLCONV
-FreeImage_JPEGCrop(const char *src_file, const char *dst_file, int left, int top, int right, int bottom) {
- char crop[64];
-
- try {
- // check the src file format
- if(FreeImage_GetFileType(src_file) != FIF_JPEG) {
- throw FI_MSG_ERROR_MAGIC_NUMBER;
- }
-
- // normalize the rectangle
- if(right < left) {
- INPLACESWAP(left, right);
- }
- if(bottom < top) {
- INPLACESWAP(top, bottom);
- }
-
- // build the crop option
- sprintf(crop, "%dx%d+%d+%d", right - left, bottom - top, left, top);
-
- // setup IO
- FilenameIO filenameIO;
- memset(&filenameIO, 0, sizeof(FilenameIO));
- filenameIO.src_file = src_file;
- filenameIO.dst_file = dst_file;
-
- // perform the transformation
- return LosslessTransform(&filenameIO, FIJPEG_OP_NONE, crop, FALSE);
-
- } catch(const char *text) {
- FreeImage_OutputMessageProc(FIF_JPEG, text);
- return FALSE;
- }
-}
-
-BOOL DLL_CALLCONV
-FreeImage_JPEGTransformU(const wchar_t *src_file, const wchar_t *dst_file, FREE_IMAGE_JPEG_OPERATION operation, BOOL perfect) {
-#ifdef _WIN32
- try {
- // check the src file format
- if(FreeImage_GetFileTypeU(src_file) != FIF_JPEG) {
- throw FI_MSG_ERROR_MAGIC_NUMBER;
- }
-
- // setup IO
- FilenameIO filenameIO;
- memset(&filenameIO, 0, sizeof(FilenameIO));
- filenameIO.wsrc_file = src_file;
- filenameIO.wdst_file = dst_file;
-
- // perform the transformation
- return LosslessTransform(&filenameIO, operation, NULL, perfect);
-
- } catch(const char *text) {
- FreeImage_OutputMessageProc(FIF_JPEG, text);
- }
-#endif /// _WIN32
- return FALSE;
-}
-
-BOOL DLL_CALLCONV
-FreeImage_JPEGCropU(const wchar_t *src_file, const wchar_t *dst_file, int left, int top, int right, int bottom) {
-#ifdef _WIN32
- char crop[64];
-
- try {
- // check the src file format
- if(FreeImage_GetFileTypeU(src_file) != FIF_JPEG) {
- throw FI_MSG_ERROR_MAGIC_NUMBER;
- }
-
- // normalize the rectangle
- if(right < left) {
- INPLACESWAP(left, right);
- }
- if(bottom < top) {
- INPLACESWAP(top, bottom);
- }
-
- // build the crop option
- sprintf(crop, "%dx%d+%d+%d", right - left, bottom - top, left, top);
-
- // setup IO
- FilenameIO filenameIO;
- memset(&filenameIO, 0, sizeof(FilenameIO));
- filenameIO.wsrc_file = src_file;
- filenameIO.wdst_file = dst_file;
-
- // perform the transformation
- return LosslessTransform(&filenameIO, FIJPEG_OP_NONE, crop, FALSE);
-
- } catch(const char *text) {
- FreeImage_OutputMessageProc(FIF_JPEG, text);
- }
-#endif // _WIN32
- return FALSE;
-}
|