X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?a=blobdiff_plain;f=src%2FgdcmJpeg.cxx;h=4c8f850352334dfeb0d6ed79ef78f024f2ebbfde;hb=7a06c1759c4f03b6c8dc7780bfda9b508a2250c5;hp=640522d97487363cbae36852c6bb2efaf981ea04;hpb=f045e95a9d0b82e8c4bd687710bd4a15323fbf55;p=gdcm.git diff --git a/src/gdcmJpeg.cxx b/src/gdcmJpeg.cxx index 640522d9..4c8f8503 100644 --- a/src/gdcmJpeg.cxx +++ b/src/gdcmJpeg.cxx @@ -5,6 +5,10 @@ #define BITS_IN_JSAMPLE 8 +#ifdef GDCM_DEBUG +#define GDCM_jpr_DEBUG 0 +#endif //GDCM_DEBUG + /* DICOM provides a mechanism for supporting the use of JPEG Image Compression through the Encapsulated Format (see PS 3.3 of the DICOM Standard). @@ -118,8 +122,8 @@ extern "C" { //----------------------------------------------------------------------------- struct my_error_mgr { - struct jpeg_error_mgr pub; /* "public" fields */ - jmp_buf setjmp_buffer; /* for return to caller */ + struct jpeg_error_mgr pub; /* "public" fields */ + jmp_buf setjmp_buffer; /* for return to caller */ }; //----------------------------------------------------------------------------- @@ -164,11 +168,11 @@ bool gdcmFile::gdcm_read_JPEG_file (FILE *fp,void * image_buffer) { struct jpeg_decompress_struct cinfo; /* -------------- inside, we found : - * JDIMENSION image_width; // input image width - * JDIMENSION image_height; // input image height - * int input_components; // nb of color components in input image - * J_COLOR_SPACE in_color_space; // colorspace of input image - * double input_gamma; // image gamma of input image + * JDIMENSION image_width; // input image width + * JDIMENSION image_height; // input image height + * int input_components; // nb of color components in input image + * J_COLOR_SPACE in_color_space; // colorspace of input image + * double input_gamma; // image gamma of input image * -------------- */ /* We use our private extension JPEG error handler. @@ -178,20 +182,20 @@ bool gdcmFile::gdcm_read_JPEG_file (FILE *fp,void * image_buffer) { struct my_error_mgr jerr; /* More stuff */ - JSAMPARRAY buffer; /* Output row buffer */ + JSAMPARRAY buffer;/* Output row buffer */ // rappel : // ------ // typedef unsigned char JSAMPLE; - // typedef JSAMPLE FAR *JSAMPROW; /* ptr to one image row of pixel samples. */ - // typedef JSAMPROW *JSAMPARRAY; /* ptr to some rows (a 2-D sample array) */ - // typedef JSAMPARRAY *JSAMPIMAGE; /* a 3-D sample array: top index is color */ + // typedef JSAMPLE FAR *JSAMPROW;/* ptr to one image row of pixel samples. */ + // typedef JSAMPROW *JSAMPARRAY;/* ptr to some rows (a 2-D sample array) */ + // typedef JSAMPARRAY *JSAMPIMAGE;/* a 3-D sample array: top index is color */ - int row_stride; /* physical row width in output buffer */ + int row_stride;/* physical row width in output buffer */ -#ifdef GDCM_DEBUG +#ifdef GDCM_JPG_DEBUG printf("entree dans gdcmFile::gdcm_read_JPEG_file12, depuis gdcmJpeg\n"); -#endif //GDCM_DEBUG +#endif //GDCM_JPG_DEBUG /* 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. @@ -200,9 +204,9 @@ bool gdcmFile::gdcm_read_JPEG_file (FILE *fp,void * image_buffer) { */ /* Step 1: allocate and initialize JPEG decompression object */ -#ifdef GDCM_DEBUG +#ifdef GDCM_JPG_DEBUG printf("Entree Step 1\n"); -#endif //GDCM_DEBUG +#endif //GDCM_JPG_DEBUG /* We set up the normal JPEG error routines, then override error_exit. */ @@ -221,16 +225,16 @@ bool gdcmFile::gdcm_read_JPEG_file (FILE *fp,void * image_buffer) { jpeg_create_decompress(&cinfo); /* Step 2: specify data source (eg, a file) */ -#ifdef GDCM_DEBUG +#ifdef GDCM_JPG_DEBUG printf("Entree Step 2\n"); -#endif //GDCM_DEBUG +#endif //GDCM_JPG_DEBUG jpeg_stdio_src(&cinfo, fp); /* Step 3: read file parameters with jpeg_read_header() */ -#ifdef GDCM_DEBUG +#ifdef GDCM_JPG_DEBUG printf("Entree Step 3\n"); -#endif //GDCM_DEBUG +#endif //GDCM_JPG_DEBUG (void) jpeg_read_header(&cinfo, TRUE); @@ -240,7 +244,7 @@ bool gdcmFile::gdcm_read_JPEG_file (FILE *fp,void * image_buffer) { * See libjpeg.doc for more info. */ -#ifdef GDCM_DEBUG +#ifdef GDCM_JPG_DEBUG printf("--------------Header contents :----------------\n"); printf("image_width %d image_height %d\n", cinfo.image_width , cinfo.image_height); @@ -248,30 +252,30 @@ bool gdcmFile::gdcm_read_JPEG_file (FILE *fp,void * image_buffer) { cinfo.output_components); printf("nb of color components returned %d \n", cinfo.data_precision); -#endif //GDCM_DEBUG +#endif //GDCM_JPG_DEBUG /* - * JDIMENSION image_width; // input image width - * JDIMENSION image_height; // input image height - * int output_components; // # of color components returned - * J_COLOR_SPACE in_color_space; // colorspace of input image - * double input_gamma; // image gamma of input image - * int data_precision; // bits of precision in image data + * JDIMENSION image_width; // input image width + * JDIMENSION image_height; // input image height + * int output_components; // # of color components returned + * J_COLOR_SPACE in_color_space; // colorspace of input image + * double input_gamma; // image gamma of input image + * int data_precision; // bits of precision in image data */ /* Step 4: set parameters for decompression */ -#ifdef GDCM_DEBUG +#ifdef GDCM_JPG_DEBUG printf("Entree Step 4\n"); -#endif //GDCM_DEBUG +#endif //GDCM_JPG_DEBUG /* In this example, we don't need to change any of the defaults set by * jpeg_read_header(), so we do nothing here. */ /* Step 5: Start decompressor */ -#ifdef GDCM_DEBUG +#ifdef GDCM_JPG_DEBUG printf("Entree Step 5\n"); -#endif GDCM_DEBUG +#endif //GDCM_JPG_DEBUG (void) jpeg_start_decompress(&cinfo); /* We can ignore the return value since suspension is not possible @@ -288,28 +292,28 @@ bool gdcmFile::gdcm_read_JPEG_file (FILE *fp,void * image_buffer) { /* JSAMPLEs per row in output buffer */ row_stride = cinfo.output_width * cinfo.output_components; -#ifdef GDCM_DEBUG +#ifdef GDCM_JPG_DEBUG printf ("cinfo.output_width %d cinfo.output_components %d row_stride %d\n", cinfo.output_width, cinfo.output_components,row_stride); -#endif //GDCM_DEBUG +#endif //GDCM_JPG_DEBUG /* 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) */ -#ifdef GDCM_DEBUG +#ifdef GDCM_JPG_DEBUG printf("Entree Step 6\n"); -#endif //GDCM_DEBUG +#endif //GDCM_JPG_DEBUG /* 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. */ -#ifdef GDCM_DEBUG +#ifdef GDCM_JPG_DEBUG printf ("cinfo.output_height %d cinfo.output_width %d\n", cinfo.output_height,cinfo.output_width); -#endif //GDCM_DEBUG +#endif //GDCM_JPG_DEBUG pimage=(char *)image_buffer; while (cinfo.output_scanline < cinfo.output_height) { @@ -336,9 +340,9 @@ bool gdcmFile::gdcm_read_JPEG_file (FILE *fp,void * image_buffer) { } /* Step 7: Finish decompression */ -#ifdef GDCM_DEBUG +#ifdef GDCM_JPG_DEBUG printf("Entree Step 7\n"); -#endif //GDCM_DEBUG +#endif //GDCM_JPG_DEBUG (void) jpeg_finish_decompress(&cinfo); @@ -348,9 +352,9 @@ bool gdcmFile::gdcm_read_JPEG_file (FILE *fp,void * image_buffer) { /* Step 8: Release JPEG decompression object */ -#ifdef GDCM_DEBUG +#ifdef GDCM_JPG_DEBUG printf("Entree Step 8\n"); -#endif //GDCM_DEBUG +#endif //GDCM_JPG_DEBUG /* This is an important step since it will release a good deal of memory. */ @@ -396,4 +400,4 @@ bool gdcmFile::gdcm_read_JPEG_file (FILE *fp,void * image_buffer) { * temporary files are deleted if the program is interrupted. See libjpeg.doc. */ -//----------------------------------------------------------------------------- +//----------------------------------------------------------------------------