71539b3e13
* commit 'b8d044a666056d4d8d28d7a5d0805ac32b619b36': (58 commits) Big oops. wrjpgcom on Windows was being built using the rdjpgcom source. Prevent a buffer overrun if the comment begins with a literal quote character and the string exceeds 65k characters. Also prevent comments longer than 65k characters from being written, since this will produce an incorrect JPEG file. Remove VMS-specific code Our copyright string is longer than JMSG_LENGTH_MAX, and this was causing a buffer overrun if output_message() was called with msg_code set to JMSG_COPYRIGHT, or if format_message() was called with msg_code set to JMSG_COPYRIGHT and with a buffer of length JMSG_LENGTH_MAX. We don't support non-ANSI C compilers Allow for building the MIPS DSPr2 extensions if the host is mips-* as well as mipsel-*. The DSPr2 extensions are little endian, so we still have to check that the compiler defines __MIPSEL__ before enabling them. This paves the way for supporting big-endian MIPS, and in the near term, it allows the SIMD extensions to be built with Sourcery CodeBench. SIMD-accelerated int upsample routine for MIPS DSPr2 Fix MIPS build libjpeg-turbo has never supported non-ANSI compilers, so get rid of the crufty SIZEOF() macro. It was not being used consistently anyhow, so it would not have been possible to build prior releases of libjpeg-turbo using the broken compilers for which that macro was designed. Remove MS-DOS code and information, and adjust copyright headers to reflect the removal of features in r1307 and r1308. libjpeg-turbo has never supported MS-DOS, nor is it even possible for us to do so. Further copyright header cleanup Further copyright header cleanup Get rid of the HAVE_PROTOTYPES configuration option, as well as the related JMETHOD and JPP macros. libjpeg-turbo has never supported compilers that don't handle prototypes. Doing so requires ansi2knr, which isn't even supported in the IJG code anymore. Remove all of the NEED_SHORT_EXTERNAL_NAMES stuff. There is scant information available as to which linkers ever had a 15-character global symbol name limit. AFAICT, it might have been a VMS and/or a.out BSD thing, but none of those platforms have ever been supported by libjpeg-turbo (nor are such systems supported by other open source libraries of this nature.) Clean up code formatting in the SIMD interface functions SIMD-accelerated NULL convert routine for MIPS DSPr2 Fix build, which was broken by the checkin of the MIPS DSPr2 accelerated smooth downsampling routine. Until/unless other platforms include SIMD support for that function, it's just easier to #ifdef around it rather than adding stubs for the other platforms. Fix error in MIPS DSPr2 accelerated smooth downsample routine SIMD-accelerated h2v2 smooth downsampling routine for MIPS DSPr2 Minor tweak to improve code readability ... Conflicts: BUILDING.txt CMakeLists.txt Makefile.am cdjpeg.h cjpeg.1 cjpeg.c configure.ac djpeg.1 example.c jccoefct.c jcdctmgr.c jchuff.c jchuff.h jcinit.c jcmaster.c jcparam.c jcphuff.c jidctflt.c jpegint.h jpeglib.h jversion.h libjpeg.txt rdswitch.c simd/CMakeLists.txt tjbench.c turbojpeg.c usage.txt wrjpgcom.c
156 lines
5.3 KiB
C
156 lines
5.3 KiB
C
/*
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* cdjpeg.h
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*
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* This file was part of the Independent JPEG Group's software:
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* Copyright (C) 1994-1997, Thomas G. Lane.
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* It was modified by The libjpeg-turbo Project to include only code relevant
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* to libjpeg-turbo.
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* mozjpeg Modifications:
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* Copyright (C) 2014, Mozilla Corporation.
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* For conditions of distribution and use, see the accompanying README file.
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*
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* This file contains common declarations for the sample applications
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* cjpeg and djpeg. It is NOT used by the core JPEG library.
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*/
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#define JPEG_CJPEG_DJPEG /* define proper options in jconfig.h */
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#define JPEG_INTERNAL_OPTIONS /* cjpeg.c,djpeg.c need to see xxx_SUPPORTED */
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#include "jinclude.h"
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#include "jpeglib.h"
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#include "jerror.h" /* get library error codes too */
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#include "cderror.h" /* get application-specific error codes */
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#define JPEG_RAW_READER 0
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/*
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* Object interface for cjpeg's source file decoding modules
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*/
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typedef struct cjpeg_source_struct * cjpeg_source_ptr;
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struct cjpeg_source_struct {
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void (*start_input) (j_compress_ptr cinfo, cjpeg_source_ptr sinfo);
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JDIMENSION (*get_pixel_rows) (j_compress_ptr cinfo, cjpeg_source_ptr sinfo);
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void (*finish_input) (j_compress_ptr cinfo, cjpeg_source_ptr sinfo);
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FILE *input_file;
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JSAMPARRAY buffer;
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JDIMENSION buffer_height;
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#if JPEG_RAW_READER
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// For reading JPEG
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JSAMPARRAY plane_pointer[4];
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#endif
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jpeg_saved_marker_ptr marker_list;
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};
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/*
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* Object interface for djpeg's output file encoding modules
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*/
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typedef struct djpeg_dest_struct * djpeg_dest_ptr;
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struct djpeg_dest_struct {
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/* start_output is called after jpeg_start_decompress finishes.
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* The color map will be ready at this time, if one is needed.
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*/
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void (*start_output) (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo);
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/* Emit the specified number of pixel rows from the buffer. */
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void (*put_pixel_rows) (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo,
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JDIMENSION rows_supplied);
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/* Finish up at the end of the image. */
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void (*finish_output) (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo);
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/* Target file spec; filled in by djpeg.c after object is created. */
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FILE * output_file;
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/* Output pixel-row buffer. Created by module init or start_output.
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* Width is cinfo->output_width * cinfo->output_components;
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* height is buffer_height.
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*/
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JSAMPARRAY buffer;
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JDIMENSION buffer_height;
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};
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/*
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* cjpeg/djpeg may need to perform extra passes to convert to or from
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* the source/destination file format. The JPEG library does not know
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* about these passes, but we'd like them to be counted by the progress
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* monitor. We use an expanded progress monitor object to hold the
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* additional pass count.
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*/
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struct cdjpeg_progress_mgr {
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struct jpeg_progress_mgr pub; /* fields known to JPEG library */
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int completed_extra_passes; /* extra passes completed */
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int total_extra_passes; /* total extra */
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/* last printed percentage stored here to avoid multiple printouts */
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int percent_done;
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};
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typedef struct cdjpeg_progress_mgr * cd_progress_ptr;
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/* Module selection routines for I/O modules. */
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EXTERN(cjpeg_source_ptr) jinit_read_bmp (j_compress_ptr cinfo);
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EXTERN(djpeg_dest_ptr) jinit_write_bmp (j_decompress_ptr cinfo,
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boolean is_os2);
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EXTERN(cjpeg_source_ptr) jinit_read_gif (j_compress_ptr cinfo);
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EXTERN(djpeg_dest_ptr) jinit_write_gif (j_decompress_ptr cinfo);
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EXTERN(cjpeg_source_ptr) jinit_read_jpeg (j_compress_ptr cinfo);
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EXTERN(cjpeg_source_ptr) jinit_read_ppm (j_compress_ptr cinfo);
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EXTERN(djpeg_dest_ptr) jinit_write_ppm (j_decompress_ptr cinfo);
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EXTERN(cjpeg_source_ptr) jinit_read_rle (j_compress_ptr cinfo);
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EXTERN(djpeg_dest_ptr) jinit_write_rle (j_decompress_ptr cinfo);
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EXTERN(cjpeg_source_ptr) jinit_read_targa (j_compress_ptr cinfo);
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EXTERN(djpeg_dest_ptr) jinit_write_targa (j_decompress_ptr cinfo);
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/* cjpeg support routines (in rdswitch.c) */
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EXTERN(boolean) read_quant_tables (j_compress_ptr cinfo, char * filename,
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boolean force_baseline);
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EXTERN(boolean) read_scan_script (j_compress_ptr cinfo, char * filename);
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EXTERN(boolean) set_quality_ratings (j_compress_ptr cinfo, char *arg,
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boolean force_baseline);
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EXTERN(boolean) set_quant_slots (j_compress_ptr cinfo, char *arg);
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EXTERN(boolean) set_sample_factors (j_compress_ptr cinfo, char *arg);
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/* djpeg support routines (in rdcolmap.c) */
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EXTERN(void) read_color_map (j_decompress_ptr cinfo, FILE * infile);
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/* common support routines (in cdjpeg.c) */
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EXTERN(void) enable_signal_catcher (j_common_ptr cinfo);
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EXTERN(void) start_progress_monitor (j_common_ptr cinfo,
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cd_progress_ptr progress);
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EXTERN(void) end_progress_monitor (j_common_ptr cinfo);
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EXTERN(boolean) keymatch (char * arg, const char * keyword, int minchars);
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EXTERN(FILE *) read_stdin (void);
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EXTERN(FILE *) write_stdout (void);
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/* miscellaneous useful macros */
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#ifdef DONT_USE_B_MODE /* define mode parameters for fopen() */
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#define READ_BINARY "r"
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#define WRITE_BINARY "w"
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#else
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#define READ_BINARY "rb"
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#define WRITE_BINARY "wb"
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#endif
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#ifndef EXIT_FAILURE /* define exit() codes if not provided */
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#define EXIT_FAILURE 1
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#endif
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#ifndef EXIT_SUCCESS
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#define EXIT_SUCCESS 0
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#endif
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#ifndef EXIT_WARNING
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#define EXIT_WARNING 2
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#endif
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