You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
162 lines
5.8 KiB
162 lines
5.8 KiB
4 months ago
|
/*
|
||
|
|
* cdjpeg.h
|
||
|
|
*
|
||
|
|
* This file was part of the Independent JPEG Group's software:
|
||
|
|
* Copyright (C) 1994-1997, Thomas G. Lane.
|
||
|
|
* Modified 2019 by Guido Vollbeding.
|
||
|
|
* libjpeg-turbo Modifications:
|
||
|
|
* Copyright (C) 2017, 2019, 2021, D. R. Commander.
|
||
|
|
* For conditions of distribution and use, see the accompanying README.ijg
|
||
|
|
* file.
|
||
|
|
*
|
||
|
|
* This file contains common declarations for the sample applications
|
||
|
|
* cjpeg and djpeg. It is NOT used by the core JPEG library.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#define JPEG_CJPEG_DJPEG /* define proper options in jconfig.h */
|
||
|
|
#define JPEG_INTERNAL_OPTIONS /* cjpeg.c,djpeg.c need to see xxx_SUPPORTED */
|
||
|
|
#include "jinclude.h"
|
||
|
|
#include "jpeglib.h"
|
||
|
|
#include "jerror.h" /* get library error codes too */
|
||
|
|
#include "cderror.h" /* get application-specific error codes */
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Object interface for cjpeg's source file decoding modules
|
||
|
|
*/
|
||
|
|
|
||
|
|
typedef struct cjpeg_source_struct *cjpeg_source_ptr;
|
||
|
|
|
||
|
|
struct cjpeg_source_struct {
|
||
|
|
void (*start_input) (j_compress_ptr cinfo, cjpeg_source_ptr sinfo);
|
||
|
|
JDIMENSION (*get_pixel_rows) (j_compress_ptr cinfo, cjpeg_source_ptr sinfo);
|
||
|
|
void (*finish_input) (j_compress_ptr cinfo, cjpeg_source_ptr sinfo);
|
||
|
|
|
||
|
|
FILE *input_file;
|
||
|
|
|
||
|
|
JSAMPARRAY buffer;
|
||
|
|
JDIMENSION buffer_height;
|
||
|
|
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
|
||
|
|
JDIMENSION max_pixels;
|
||
|
|
#endif
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Object interface for djpeg's output file encoding modules
|
||
|
|
*/
|
||
|
|
|
||
|
|
typedef struct djpeg_dest_struct *djpeg_dest_ptr;
|
||
|
|
|
||
|
|
struct djpeg_dest_struct {
|
||
|
|
/* start_output is called after jpeg_start_decompress finishes.
|
||
|
|
* The color map will be ready at this time, if one is needed.
|
||
|
|
*/
|
||
|
|
void (*start_output) (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo);
|
||
|
|
/* Emit the specified number of pixel rows from the buffer. */
|
||
|
|
void (*put_pixel_rows) (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo,
|
||
|
|
JDIMENSION rows_supplied);
|
||
|
|
/* Finish up at the end of the image. */
|
||
|
|
void (*finish_output) (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo);
|
||
|
|
/* Re-calculate buffer dimensions based on output dimensions (for use with
|
||
|
|
partial image decompression.) If this is NULL, then the output format
|
||
|
|
does not support partial image decompression (BMP, in particular, cannot
|
||
|
|
support partial decompression because it uses an inversion buffer to write
|
||
|
|
the image in bottom-up order.) */
|
||
|
|
void (*calc_buffer_dimensions) (j_decompress_ptr cinfo,
|
||
|
|
djpeg_dest_ptr dinfo);
|
||
|
|
|
||
|
|
|
||
|
|
/* Target file spec; filled in by djpeg.c after object is created. */
|
||
|
|
FILE *output_file;
|
||
|
|
|
||
|
|
/* Output pixel-row buffer. Created by module init or start_output.
|
||
|
|
* Width is cinfo->output_width * cinfo->output_components;
|
||
|
|
* height is buffer_height.
|
||
|
|
*/
|
||
|
|
JSAMPARRAY buffer;
|
||
|
|
JDIMENSION buffer_height;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* cjpeg/djpeg may need to perform extra passes to convert to or from
|
||
|
|
* the source/destination file format. The JPEG library does not know
|
||
|
|
* about these passes, but we'd like them to be counted by the progress
|
||
|
|
* monitor. We use an expanded progress monitor object to hold the
|
||
|
|
* additional pass count.
|
||
|
|
*/
|
||
|
|
|
||
|
|
struct cdjpeg_progress_mgr {
|
||
|
|
struct jpeg_progress_mgr pub; /* fields known to JPEG library */
|
||
|
|
int completed_extra_passes; /* extra passes completed */
|
||
|
|
int total_extra_passes; /* total extra */
|
||
|
|
JDIMENSION max_scans; /* abort if the number of scans exceeds this
|
||
|
|
value and the value is non-zero */
|
||
|
|
boolean report; /* whether or not to report progress */
|
||
|
|
/* last printed percentage stored here to avoid multiple printouts */
|
||
|
|
int percent_done;
|
||
|
|
};
|
||
|
|
|
||
|
|
typedef struct cdjpeg_progress_mgr *cd_progress_ptr;
|
||
|
|
|
||
|
|
|
||
|
|
/* Module selection routines for I/O modules. */
|
||
|
|
|
||
|
|
EXTERN(cjpeg_source_ptr) jinit_read_bmp(j_compress_ptr cinfo,
|
||
|
|
boolean use_inversion_array);
|
||
|
|
EXTERN(djpeg_dest_ptr) jinit_write_bmp(j_decompress_ptr cinfo, boolean is_os2,
|
||
|
|
boolean use_inversion_array);
|
||
|
|
EXTERN(cjpeg_source_ptr) jinit_read_gif(j_compress_ptr cinfo);
|
||
|
|
EXTERN(djpeg_dest_ptr) jinit_write_gif(j_decompress_ptr cinfo, boolean is_lzw);
|
||
|
|
EXTERN(cjpeg_source_ptr) jinit_read_ppm(j_compress_ptr cinfo);
|
||
|
|
EXTERN(djpeg_dest_ptr) jinit_write_ppm(j_decompress_ptr cinfo);
|
||
|
|
EXTERN(cjpeg_source_ptr) jinit_read_targa(j_compress_ptr cinfo);
|
||
|
|
EXTERN(djpeg_dest_ptr) jinit_write_targa(j_decompress_ptr cinfo);
|
||
|
|
|
||
|
|
/* cjpeg support routines (in rdswitch.c) */
|
||
|
|
|
||
|
|
EXTERN(boolean) read_quant_tables(j_compress_ptr cinfo, char *filename,
|
||
|
|
boolean force_baseline);
|
||
|
|
EXTERN(boolean) read_scan_script(j_compress_ptr cinfo, char *filename);
|
||
|
|
EXTERN(boolean) set_quality_ratings(j_compress_ptr cinfo, char *arg,
|
||
|
|
boolean force_baseline);
|
||
|
|
EXTERN(boolean) set_quant_slots(j_compress_ptr cinfo, char *arg);
|
||
|
|
EXTERN(boolean) set_sample_factors(j_compress_ptr cinfo, char *arg);
|
||
|
|
|
||
|
|
/* djpeg support routines (in rdcolmap.c) */
|
||
|
|
|
||
|
|
EXTERN(void) read_color_map(j_decompress_ptr cinfo, FILE *infile);
|
||
|
|
|
||
|
|
/* common support routines (in cdjpeg.c) */
|
||
|
|
|
||
|
|
EXTERN(void) start_progress_monitor(j_common_ptr cinfo,
|
||
|
|
cd_progress_ptr progress);
|
||
|
|
EXTERN(void) end_progress_monitor(j_common_ptr cinfo);
|
||
|
|
EXTERN(boolean) keymatch(char *arg, const char *keyword, int minchars);
|
||
|
|
EXTERN(FILE *) read_stdin(void);
|
||
|
|
EXTERN(FILE *) write_stdout(void);
|
||
|
|
|
||
|
|
/* miscellaneous useful macros */
|
||
|
|
|
||
|
|
#ifdef DONT_USE_B_MODE /* define mode parameters for fopen() */
|
||
|
|
#define READ_BINARY "r"
|
||
|
|
#define WRITE_BINARY "w"
|
||
|
|
#else
|
||
|
|
#define READ_BINARY "rb"
|
||
|
|
#define WRITE_BINARY "wb"
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef EXIT_FAILURE /* define exit() codes if not provided */
|
||
|
|
#define EXIT_FAILURE 1
|
||
|
|
#endif
|
||
|
|
#ifndef EXIT_SUCCESS
|
||
|
|
#define EXIT_SUCCESS 0
|
||
|
|
#endif
|
||
|
|
#ifndef EXIT_WARNING
|
||
|
|
#define EXIT_WARNING 2
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#define IsExtRGB(cs) \
|
||
|
|
(cs == JCS_RGB || (cs >= JCS_EXT_RGB && cs <= JCS_EXT_ARGB))
|