--- /dev/null
+/*
+ * cdjpeg.h
+ *
+ * Copyright (C) 1994-1997, Thomas G. Lane.
+ * This file is part of the Independent JPEG Group's software.
+ * For conditions of distribution and use, see the accompanying README 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 {
+ JMETHOD(void, start_input, (j_compress_ptr cinfo,
+ cjpeg_source_ptr sinfo));
+ JMETHOD(JDIMENSION, get_pixel_rows, (j_compress_ptr cinfo,
+ cjpeg_source_ptr sinfo));
+ JMETHOD(void, finish_input, (j_compress_ptr cinfo,
+ cjpeg_source_ptr sinfo));
+
+ FILE *input_file;
+
+ JSAMPARRAY buffer;
+ JDIMENSION buffer_height;
+};
+
+
+/*
+ * 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.
+ */
+ JMETHOD(void, start_output, (j_decompress_ptr cinfo,
+ djpeg_dest_ptr dinfo));
+ /* Emit the specified number of pixel rows from the buffer. */
+ JMETHOD(void, put_pixel_rows, (j_decompress_ptr cinfo,
+ djpeg_dest_ptr dinfo,
+ JDIMENSION rows_supplied));
+ /* Finish up at the end of the image. */
+ JMETHOD(void, finish_output, (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 */
+ /* last printed percentage stored here to avoid multiple printouts */
+ int percent_done;
+};
+
+typedef struct cdjpeg_progress_mgr * cd_progress_ptr;
+
+
+/* Short forms of external names for systems with brain-damaged linkers. */
+
+#ifdef NEED_SHORT_EXTERNAL_NAMES
+#define jinit_read_bmp jIRdBMP
+#define jinit_write_bmp jIWrBMP
+#define jinit_read_gif jIRdGIF
+#define jinit_write_gif jIWrGIF
+#define jinit_read_ppm jIRdPPM
+#define jinit_write_ppm jIWrPPM
+#define jinit_read_rle jIRdRLE
+#define jinit_write_rle jIWrRLE
+#define jinit_read_targa jIRdTarga
+#define jinit_write_targa jIWrTarga
+#define read_quant_tables RdQTables
+#define read_scan_script RdScnScript
+#define set_quant_slots SetQSlots
+#define set_sample_factors SetSFacts
+#define read_color_map RdCMap
+#define enable_signal_catcher EnSigCatcher
+#define start_progress_monitor StProgMon
+#define end_progress_monitor EnProgMon
+#define read_stdin RdStdin
+#define write_stdout WrStdout
+#endif /* NEED_SHORT_EXTERNAL_NAMES */
+
+/* Module selection routines for I/O modules. */
+
+EXTERN(cjpeg_source_ptr) jinit_read_bmp JPP((j_compress_ptr cinfo));
+EXTERN(djpeg_dest_ptr) jinit_write_bmp JPP((j_decompress_ptr cinfo,
+ boolean is_os2));
+EXTERN(cjpeg_source_ptr) jinit_read_gif JPP((j_compress_ptr cinfo));
+EXTERN(djpeg_dest_ptr) jinit_write_gif JPP((j_decompress_ptr cinfo));
+EXTERN(cjpeg_source_ptr) jinit_read_ppm JPP((j_compress_ptr cinfo));
+EXTERN(djpeg_dest_ptr) jinit_write_ppm JPP((j_decompress_ptr cinfo));
+EXTERN(cjpeg_source_ptr) jinit_read_rle JPP((j_compress_ptr cinfo));
+EXTERN(djpeg_dest_ptr) jinit_write_rle JPP((j_decompress_ptr cinfo));
+EXTERN(cjpeg_source_ptr) jinit_read_targa JPP((j_compress_ptr cinfo));
+EXTERN(djpeg_dest_ptr) jinit_write_targa JPP((j_decompress_ptr cinfo));
+
+/* cjpeg support routines (in rdswitch.c) */
+
+EXTERN(boolean) read_quant_tables JPP((j_compress_ptr cinfo, char * filename,
+ int scale_factor, boolean force_baseline));
+EXTERN(boolean) read_scan_script JPP((j_compress_ptr cinfo, char * filename));
+EXTERN(boolean) set_quant_slots JPP((j_compress_ptr cinfo, char *arg));
+EXTERN(boolean) set_sample_factors JPP((j_compress_ptr cinfo, char *arg));
+
+/* djpeg support routines (in rdcolmap.c) */
+
+EXTERN(void) read_color_map JPP((j_decompress_ptr cinfo, FILE * infile));
+
+/* common support routines (in cdjpeg.c) */
+
+EXTERN(void) enable_signal_catcher JPP((j_common_ptr cinfo));
+EXTERN(void) start_progress_monitor JPP((j_common_ptr cinfo,
+ cd_progress_ptr progress));
+EXTERN(void) end_progress_monitor JPP((j_common_ptr cinfo));
+EXTERN(boolean) keymatch JPP((char * arg, const char * keyword, int minchars));
+EXTERN(FILE *) read_stdin JPP((void));
+EXTERN(FILE *) write_stdout JPP((void));
+
+/* miscellaneous useful macros */
+
+#ifdef DONT_USE_B_MODE /* define mode parameters for fopen() */
+#define READ_BINARY "r"
+#define WRITE_BINARY "w"
+#else
+#ifdef VMS /* VMS is very nonstandard */
+#define READ_BINARY "rb", "ctx=stm"
+#define WRITE_BINARY "wb", "ctx=stm"
+#else /* standard ANSI-compliant case */
+#define READ_BINARY "rb"
+#define WRITE_BINARY "wb"
+#endif
+#endif
+
+#ifndef EXIT_FAILURE /* define exit() codes if not provided */
+#define EXIT_FAILURE 1
+#endif
+#ifndef EXIT_SUCCESS
+#ifdef VMS
+#define EXIT_SUCCESS 1 /* VMS is very nonstandard */
+#else
+#define EXIT_SUCCESS 0
+#endif
+#endif
+#ifndef EXIT_WARNING
+#ifdef VMS
+#define EXIT_WARNING 1 /* VMS is very nonstandard */
+#else
+#define EXIT_WARNING 2
+#endif
+#endif
projects / synfig.git / blobdiff