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djpeg.c
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1 /*
2  * djpeg.c
3  *
4  * Copyright (C) 1991-1997, Thomas G. Lane.
5  * Modified 2009-2019 by Guido Vollbeding.
6  * This file is part of the Independent JPEG Group's software.
7  * For conditions of distribution and use, see the accompanying README file.
8  *
9  * This file contains a command-line user interface for the JPEG decompressor.
10  * It should work on any system with Unix- or MS-DOS-style command lines.
11  *
12  * Two different command line styles are permitted, depending on the
13  * compile-time switch TWO_FILE_COMMANDLINE:
14  * djpeg [options] inputfile outputfile
15  * djpeg [options] [inputfile]
16  * In the second style, output is always to standard output, which you'd
17  * normally redirect to a file or pipe to some other program. Input is
18  * either from a named file or from standard input (typically redirected).
19  * The second style is convenient on Unix but is unhelpful on systems that
20  * don't support pipes. Also, you MUST use the first style if your system
21  * doesn't do binary I/O to stdin/stdout.
22  * To simplify script writing, the "-outfile" switch is provided. The syntax
23  * djpeg [options] -outfile outputfile inputfile
24  * works regardless of which command line style is used.
25  */
26 
27 #include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */
28 #include "jversion.h" /* for version message */
29 
30 #include <ctype.h> /* to declare isprint() */
31 
32 #ifdef USE_CCOMMAND /* command-line reader for Macintosh */
33 #ifdef __MWERKS__
34 #include <SIOUX.h> /* Metrowerks needs this */
35 #include <console.h> /* ... and this */
36 #endif
37 #ifdef THINK_C
38 #include <console.h> /* Think declares it here */
39 #endif
40 #endif
41 
42 
43 /* Create the add-on message string table. */
44 
45 #define JMESSAGE(code,string) string ,
46 
47 static const char * const cdjpeg_message_table[] = {
48 #include "cderror.h"
49  NULL
50 };
51 
52 
53 /*
54  * This list defines the known output image formats
55  * (not all of which need be supported by a given version).
56  * You can change the default output format by defining DEFAULT_FMT;
57  * indeed, you had better do so if you undefine PPM_SUPPORTED.
58  */
59 
60 typedef enum {
61  FMT_BMP, /* BMP format (Windows flavor) */
62  FMT_GIF, /* GIF format (LZW compressed) */
63  FMT_GIF0, /* GIF format (uncompressed) */
64  FMT_OS2, /* BMP format (OS/2 flavor) */
65  FMT_PPM, /* PPM/PGM (PBMPLUS formats) */
66  FMT_RLE, /* RLE format */
67  FMT_TARGA, /* Targa format */
68  FMT_TIFF /* TIFF format */
70 
71 #ifndef DEFAULT_FMT /* so can override from CFLAGS in Makefile */
72 #define DEFAULT_FMT FMT_PPM
73 #endif
74 
76 
77 
78 /*
79  * Argument-parsing code.
80  * The switch parser is designed to be useful with DOS-style command line
81  * syntax, ie, intermixed switches and file names, where only the switches
82  * to the left of a given file name affect processing of that file.
83  * The main program in this file doesn't actually use this capability...
84  */
85 
86 
87 static const char * progname; /* program name for error messages */
88 static char * outfilename; /* for -outfile switch */
89 
90 
91 LOCAL(void)
92 usage (void)
93 /* complain about bad command line */
94 {
95  fprintf(stderr, "usage: %s [switches] ", progname);
96 #ifdef TWO_FILE_COMMANDLINE
97  fprintf(stderr, "inputfile outputfile\n");
98 #else
99  fprintf(stderr, "[inputfile]\n");
100 #endif
101 
102  fprintf(stderr, "Switches (names may be abbreviated):\n");
103  fprintf(stderr, " -colors N Reduce image to no more than N colors\n");
104  fprintf(stderr, " -fast Fast, low-quality processing\n");
105  fprintf(stderr, " -grayscale Force grayscale output\n");
106  fprintf(stderr, " -rgb Force RGB output\n");
107 #ifdef IDCT_SCALING_SUPPORTED
108  fprintf(stderr, " -scale M/N Scale output image by fraction M/N, eg, 1/8\n");
109 #endif
110 #ifdef BMP_SUPPORTED
111  fprintf(stderr, " -bmp Select BMP output format (Windows style)%s\n",
112  (DEFAULT_FMT == FMT_BMP ? " (default)" : ""));
113 #endif
114 #ifdef GIF_SUPPORTED
115  fprintf(stderr, " -gif Select GIF output format (LZW compressed)%s\n",
116  (DEFAULT_FMT == FMT_GIF ? " (default)" : ""));
117  fprintf(stderr, " -gif0 Select GIF output format (uncompressed)%s\n",
118  (DEFAULT_FMT == FMT_GIF0 ? " (default)" : ""));
119 #endif
120 #ifdef BMP_SUPPORTED
121  fprintf(stderr, " -os2 Select BMP output format (OS/2 style)%s\n",
122  (DEFAULT_FMT == FMT_OS2 ? " (default)" : ""));
123 #endif
124 #ifdef PPM_SUPPORTED
125  fprintf(stderr, " -pnm Select PBMPLUS (PPM/PGM) output format%s\n",
126  (DEFAULT_FMT == FMT_PPM ? " (default)" : ""));
127 #endif
128 #ifdef RLE_SUPPORTED
129  fprintf(stderr, " -rle Select Utah RLE output format%s\n",
130  (DEFAULT_FMT == FMT_RLE ? " (default)" : ""));
131 #endif
132 #ifdef TARGA_SUPPORTED
133  fprintf(stderr, " -targa Select Targa output format%s\n",
134  (DEFAULT_FMT == FMT_TARGA ? " (default)" : ""));
135 #endif
136  fprintf(stderr, "Switches for advanced users:\n");
137 #ifdef DCT_ISLOW_SUPPORTED
138  fprintf(stderr, " -dct int Use integer DCT method%s\n",
139  (JDCT_DEFAULT == JDCT_ISLOW ? " (default)" : ""));
140 #endif
141 #ifdef DCT_IFAST_SUPPORTED
142  fprintf(stderr, " -dct fast Use fast integer DCT (less accurate)%s\n",
143  (JDCT_DEFAULT == JDCT_IFAST ? " (default)" : ""));
144 #endif
145 #ifdef DCT_FLOAT_SUPPORTED
146  fprintf(stderr, " -dct float Use floating-point DCT method%s\n",
147  (JDCT_DEFAULT == JDCT_FLOAT ? " (default)" : ""));
148 #endif
149  fprintf(stderr, " -dither fs Use F-S dithering (default)\n");
150  fprintf(stderr, " -dither none Don't use dithering in quantization\n");
151  fprintf(stderr, " -dither ordered Use ordered dither (medium speed, quality)\n");
152 #ifdef QUANT_2PASS_SUPPORTED
153  fprintf(stderr, " -map FILE Map to colors used in named image file\n");
154 #endif
155  fprintf(stderr, " -nosmooth Don't use high-quality upsampling\n");
156 #ifdef QUANT_1PASS_SUPPORTED
157  fprintf(stderr, " -onepass Use 1-pass quantization (fast, low quality)\n");
158 #endif
159  fprintf(stderr, " -maxmemory N Maximum memory to use (in kbytes)\n");
160  fprintf(stderr, " -outfile name Specify name for output file\n");
161  fprintf(stderr, " -verbose or -debug Emit debug output\n");
163 }
164 
165 
166 LOCAL(int)
168  int last_file_arg_seen, boolean for_real)
169 /* Parse optional switches.
170  * Returns argv[] index of first file-name argument (== argc if none).
171  * Any file names with indexes <= last_file_arg_seen are ignored;
172  * they have presumably been processed in a previous iteration.
173  * (Pass 0 for last_file_arg_seen on the first or only iteration.)
174  * for_real is FALSE on the first (dummy) pass; we may skip any expensive
175  * processing.
176  */
177 {
178  int argn;
179  char * arg;
180 
181  /* Set up default JPEG parameters. */
182  requested_fmt = DEFAULT_FMT; /* set default output file format */
183  outfilename = NULL;
184  cinfo->err->trace_level = 0;
185 
186  /* Scan command line options, adjust parameters */
187 
188  for (argn = 1; argn < argc; argn++) {
189  arg = argv[argn];
190  if (*arg != '-') {
191  /* Not a switch, must be a file name argument */
192  if (argn <= last_file_arg_seen) {
193  outfilename = NULL; /* -outfile applies to just one input file */
194  continue; /* ignore this name if previously processed */
195  }
196  break; /* else done parsing switches */
197  }
198  arg++; /* advance past switch marker character */
199 
200  if (keymatch(arg, "bmp", 1)) {
201  /* BMP output format (Windows flavor). */
203 
204  } else if (keymatch(arg, "colors", 1) || keymatch(arg, "colours", 1) ||
205  keymatch(arg, "quantize", 1) || keymatch(arg, "quantise", 1)) {
206  /* Do color quantization. */
207  int val;
208 
209  if (++argn >= argc) /* advance to next argument */
210  usage();
211  if (sscanf(argv[argn], "%d", &val) != 1)
212  usage();
213  cinfo->desired_number_of_colors = val;
214  cinfo->quantize_colors = TRUE;
215 
216  } else if (keymatch(arg, "dct", 2)) {
217  /* Select IDCT algorithm. */
218  if (++argn >= argc) /* advance to next argument */
219  usage();
220  if (keymatch(argv[argn], "int", 1)) {
221  cinfo->dct_method = JDCT_ISLOW;
222  } else if (keymatch(argv[argn], "fast", 2)) {
223  cinfo->dct_method = JDCT_IFAST;
224  } else if (keymatch(argv[argn], "float", 2)) {
225  cinfo->dct_method = JDCT_FLOAT;
226  } else
227  usage();
228 
229  } else if (keymatch(arg, "dither", 2)) {
230  /* Select dithering algorithm. */
231  if (++argn >= argc) /* advance to next argument */
232  usage();
233  if (keymatch(argv[argn], "fs", 2)) {
234  cinfo->dither_mode = JDITHER_FS;
235  } else if (keymatch(argv[argn], "none", 2)) {
236  cinfo->dither_mode = JDITHER_NONE;
237  } else if (keymatch(argv[argn], "ordered", 2)) {
238  cinfo->dither_mode = JDITHER_ORDERED;
239  } else
240  usage();
241 
242  } else if (keymatch(arg, "debug", 1) || keymatch(arg, "verbose", 1)) {
243  /* Enable debug printouts. */
244  /* On first -d, print version identification */
245  static boolean printed_version = FALSE;
246 
247  if (! printed_version) {
248  fprintf(stderr, "Independent JPEG Group's DJPEG, version %s\n%s\n",
250  printed_version = TRUE;
251  }
252  cinfo->err->trace_level++;
253 
254  } else if (keymatch(arg, "fast", 1)) {
255  /* Select recommended processing options for quick-and-dirty output. */
256  cinfo->two_pass_quantize = FALSE;
257  cinfo->dither_mode = JDITHER_ORDERED;
258  if (! cinfo->quantize_colors) /* don't override an earlier -colors */
259  cinfo->desired_number_of_colors = 216;
260  cinfo->dct_method = JDCT_FASTEST;
261  cinfo->do_fancy_upsampling = FALSE;
262 
263  } else if (keymatch(arg, "gif", 1)) {
264  /* GIF output format (LZW compressed). */
266 
267  } else if (keymatch(arg, "gif0", 4)) {
268  /* GIF output format (uncompressed). */
270 
271  } else if (keymatch(arg, "grayscale", 2) || keymatch(arg, "greyscale",2)) {
272  /* Force monochrome output. */
273  cinfo->out_color_space = JCS_GRAYSCALE;
274 
275  } else if (keymatch(arg, "rgb", 3)) {
276  /* Force RGB output. */
277  cinfo->out_color_space = JCS_RGB;
278 
279  } else if (keymatch(arg, "map", 3)) {
280  /* Quantize to a color map taken from an input file. */
281  if (++argn >= argc) /* advance to next argument */
282  usage();
283  if (for_real) { /* too expensive to do twice! */
284 #ifdef QUANT_2PASS_SUPPORTED /* otherwise can't quantize to supplied map */
285  FILE * mapfile;
286 
287  if ((mapfile = fopen(argv[argn], READ_BINARY)) == NULL) {
288  fprintf(stderr, "%s: can't open %s\n", progname, argv[argn]);
290  }
291  read_color_map(cinfo, mapfile);
292  fclose(mapfile);
293  cinfo->quantize_colors = TRUE;
294 #else
295  ERREXIT(cinfo, JERR_NOT_COMPILED);
296 #endif
297  }
298 
299  } else if (keymatch(arg, "maxmemory", 3)) {
300  /* Maximum memory in Kb (or Mb with 'm'). */
301  long lval;
302  char ch = 'x';
303 
304  if (++argn >= argc) /* advance to next argument */
305  usage();
306  if (sscanf(argv[argn], "%ld%c", &lval, &ch) < 1)
307  usage();
308  if (ch == 'm' || ch == 'M')
309  lval *= 1000L;
310  cinfo->mem->max_memory_to_use = lval * 1000L;
311 
312  } else if (keymatch(arg, "nosmooth", 3)) {
313  /* Suppress fancy upsampling. */
314  cinfo->do_fancy_upsampling = FALSE;
315 
316  } else if (keymatch(arg, "onepass", 3)) {
317  /* Use fast one-pass quantization. */
318  cinfo->two_pass_quantize = FALSE;
319 
320  } else if (keymatch(arg, "os2", 3)) {
321  /* BMP output format (OS/2 flavor). */
323 
324  } else if (keymatch(arg, "outfile", 4)) {
325  /* Set output file name. */
326  if (++argn >= argc) /* advance to next argument */
327  usage();
328  outfilename = argv[argn]; /* save it away for later use */
329 
330  } else if (keymatch(arg, "pnm", 1) || keymatch(arg, "ppm", 1)) {
331  /* PPM/PGM output format. */
333 
334  } else if (keymatch(arg, "rle", 1)) {
335  /* RLE output format. */
337 
338  } else if (keymatch(arg, "scale", 1)) {
339  /* Scale the output image by a fraction M/N. */
340  if (++argn >= argc) /* advance to next argument */
341  usage();
342  if (sscanf(argv[argn], "%u/%u",
343  &cinfo->scale_num, &cinfo->scale_denom) < 1)
344  usage();
345 
346  } else if (keymatch(arg, "targa", 1)) {
347  /* Targa output format. */
349 
350  } else {
351  usage(); /* bogus switch */
352  }
353  }
354 
355  return argn; /* return index of next arg (file name) */
356 }
357 
358 
359 /*
360  * Marker processor for COM and interesting APPn markers.
361  * This replaces the library's built-in processor, which just skips the marker.
362  * We want to print out the marker as text, to the extent possible.
363  * Note this code relies on a non-suspending data source.
364  */
365 
366 LOCAL(unsigned int)
368 /* Read next byte */
369 {
370  struct jpeg_source_mgr * datasrc = cinfo->src;
371 
372  if (datasrc->bytes_in_buffer == 0) {
373  if (! (*datasrc->fill_input_buffer) (cinfo))
374  ERREXIT(cinfo, JERR_CANT_SUSPEND);
375  }
376  datasrc->bytes_in_buffer--;
377  return GETJOCTET(*datasrc->next_input_byte++);
378 }
379 
380 
381 METHODDEF(boolean)
383 {
384  boolean traceit = (cinfo->err->trace_level >= 1);
385  INT32 length;
386  unsigned int ch;
387  unsigned int lastch = 0;
388 
389  length = jpeg_getc(cinfo) << 8;
390  length += jpeg_getc(cinfo);
391  length -= 2; /* discount the length word itself */
392 
393  if (traceit) {
394  if (cinfo->unread_marker == JPEG_COM)
395  fprintf(stderr, "Comment, length %ld:\n", (long) length);
396  else /* assume it is an APPn otherwise */
397  fprintf(stderr, "APP%d, length %ld:\n",
398  cinfo->unread_marker - JPEG_APP0, (long) length);
399  }
400 
401  while (--length >= 0) {
402  ch = jpeg_getc(cinfo);
403  if (traceit) {
404  /* Emit the character in a readable form.
405  * Nonprintables are converted to \nnn form,
406  * while \ is converted to \\.
407  * Newlines in CR, CR/LF, or LF form will be printed as one newline.
408  */
409  if (ch == '\r') {
410  fprintf(stderr, "\n");
411  } else if (ch == '\n') {
412  if (lastch != '\r')
413  fprintf(stderr, "\n");
414  } else if (ch == '\\') {
415  fprintf(stderr, "\\\\");
416  } else if (isprint(ch)) {
417  putc(ch, stderr);
418  } else {
419  fprintf(stderr, "\\%03o", ch);
420  }
421  lastch = ch;
422  }
423  }
424 
425  if (traceit)
426  fprintf(stderr, "\n");
427 
428  return TRUE;
429 }
430 
431 
432 /*
433  * The main program.
434  */
435 
436 int
437 main (int argc, char **argv)
438 {
439  struct jpeg_decompress_struct cinfo;
440  struct jpeg_error_mgr jerr;
441 #ifdef PROGRESS_REPORT
443 #endif
444  int file_index;
445  djpeg_dest_ptr dest_mgr = NULL;
446  FILE * input_file;
447  FILE * output_file;
448  JDIMENSION num_scanlines;
449 
450  /* On Mac, fetch a command line. */
451 #ifdef USE_CCOMMAND
452  argc = ccommand(&argv);
453 #endif
454 
455  progname = argv[0];
456  if (progname == NULL || progname[0] == 0)
457  progname = "djpeg"; /* in case C library doesn't provide it */
458 
459  /* Initialize the JPEG decompression object with default error handling. */
460  cinfo.err = jpeg_std_error(&jerr);
461  jpeg_create_decompress(&cinfo);
462  /* Add some application-specific error messages (from cderror.h) */
464  jerr.first_addon_message = JMSG_FIRSTADDONCODE;
465  jerr.last_addon_message = JMSG_LASTADDONCODE;
466 
467  /* Insert custom marker processor for COM and APP12.
468  * APP12 is used by some digital camera makers for textual info,
469  * so we provide the ability to display it as text.
470  * If you like, additional APPn marker types can be selected for display,
471  * but don't try to override APP0 or APP14 this way (see libjpeg.txt).
472  */
475 
476  /* Now safe to enable signal catcher. */
477 #ifdef NEED_SIGNAL_CATCHER
478  enable_signal_catcher((j_common_ptr) &cinfo);
479 #endif
480 
481  /* Scan command line to find file names. */
482  /* It is convenient to use just one switch-parsing routine, but the switch
483  * values read here are ignored; we will rescan the switches after opening
484  * the input file.
485  * (Exception: tracing level set here controls verbosity for COM markers
486  * found during jpeg_read_header...)
487  */
488 
489  file_index = parse_switches(&cinfo, argc, argv, 0, FALSE);
490 
491 #ifdef TWO_FILE_COMMANDLINE
492  /* Must have either -outfile switch or explicit output file name */
493  if (outfilename == NULL) {
494  if (file_index != argc-2) {
495  fprintf(stderr, "%s: must name one input and one output file\n",
496  progname);
497  usage();
498  }
499  outfilename = argv[file_index+1];
500  } else {
501  if (file_index != argc-1) {
502  fprintf(stderr, "%s: must name one input and one output file\n",
503  progname);
504  usage();
505  }
506  }
507 #else
508  /* Unix style: expect zero or one file name */
509  if (file_index < argc-1) {
510  fprintf(stderr, "%s: only one input file\n", progname);
511  usage();
512  }
513 #endif /* TWO_FILE_COMMANDLINE */
514 
515  /* Open the input file. */
516  if (file_index < argc) {
517  if ((input_file = fopen(argv[file_index], READ_BINARY)) == NULL) {
518  fprintf(stderr, "%s: can't open %s\n", progname, argv[file_index]);
520  }
521  } else {
522  /* default input file is stdin */
523  input_file = read_stdin();
524  }
525 
526  /* Open the output file. */
527  if (outfilename != NULL) {
528  if ((output_file = fopen(outfilename, WRITE_BINARY)) == NULL) {
529  fprintf(stderr, "%s: can't open %s\n", progname, outfilename);
531  }
532  } else {
533  /* default output file is stdout */
534  output_file = write_stdout();
535  }
536 
537 #ifdef PROGRESS_REPORT
538  start_progress_monitor((j_common_ptr) &cinfo, &progress);
539 #endif
540 
541  /* Specify data source for decompression */
542  jpeg_stdio_src(&cinfo, input_file);
543 
544  /* Read file header, set default decompression parameters */
545  (void) jpeg_read_header(&cinfo, TRUE);
546 
547  /* Adjust default decompression parameters by re-parsing the options */
548  file_index = parse_switches(&cinfo, argc, argv, 0, TRUE);
549 
550  /* Initialize the output module now to let it override any crucial
551  * option settings (for instance, GIF wants to force color quantization).
552  */
553  switch (requested_fmt) {
554 #ifdef BMP_SUPPORTED
555  case FMT_BMP:
556  dest_mgr = jinit_write_bmp(&cinfo, FALSE);
557  break;
558  case FMT_OS2:
559  dest_mgr = jinit_write_bmp(&cinfo, TRUE);
560  break;
561 #endif
562 #ifdef GIF_SUPPORTED
563  case FMT_GIF:
564  dest_mgr = jinit_write_gif(&cinfo, TRUE);
565  break;
566  case FMT_GIF0:
567  dest_mgr = jinit_write_gif(&cinfo, FALSE);
568  break;
569 #endif
570 #ifdef PPM_SUPPORTED
571  case FMT_PPM:
572  dest_mgr = jinit_write_ppm(&cinfo);
573  break;
574 #endif
575 #ifdef RLE_SUPPORTED
576  case FMT_RLE:
577  dest_mgr = jinit_write_rle(&cinfo);
578  break;
579 #endif
580 #ifdef TARGA_SUPPORTED
581  case FMT_TARGA:
582  dest_mgr = jinit_write_targa(&cinfo);
583  break;
584 #endif
585  default:
586  ERREXIT(&cinfo, JERR_UNSUPPORTED_FORMAT);
587  }
588  dest_mgr->output_file = output_file;
589 
590  /* Start decompressor */
591  (void) jpeg_start_decompress(&cinfo);
592 
593  /* Write output file header */
594  (*dest_mgr->start_output) (&cinfo, dest_mgr);
595 
596  /* Process data */
597  while (cinfo.output_scanline < cinfo.output_height) {
598  num_scanlines = jpeg_read_scanlines(&cinfo, dest_mgr->buffer,
599  dest_mgr->buffer_height);
600  (*dest_mgr->put_pixel_rows) (&cinfo, dest_mgr, num_scanlines);
601  }
602 
603 #ifdef PROGRESS_REPORT
604  /* Hack: count final pass as done in case finish_output does an extra pass.
605  * The library won't have updated completed_passes.
606  */
607  progress.pub.completed_passes = progress.pub.total_passes;
608 #endif
609 
610  /* Finish decompression and release memory.
611  * I must do it in this order because output module has allocated memory
612  * of lifespan JPOOL_IMAGE; it needs to finish before releasing memory.
613  */
614  (*dest_mgr->finish_output) (&cinfo, dest_mgr);
615  (void) jpeg_finish_decompress(&cinfo);
616  jpeg_destroy_decompress(&cinfo);
617 
618  /* Close files, if we opened them */
619  if (input_file != stdin)
620  fclose(input_file);
621  if (output_file != stdout)
622  fclose(output_file);
623 
624 #ifdef PROGRESS_REPORT
625  end_progress_monitor((j_common_ptr) &cinfo);
626 #endif
627 
628  /* All done. */
630  return 0; /* suppress no-return-value warnings */
631 }
#define READ_BINARY
Definition: jmemdos.c:77
JSAMPARRAY buffer
Definition: cdjpeg.h:69
#define JDCT_FASTEST
Definition: jpeglib.h:250
static int argc
Definition: ServiceArgs.c:12
jpeg_read_header(j_decompress_ptr cinfo, boolean require_image)
Definition: jdapimin.c:245
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Definition: jpeglib.h:735
Definition: djpeg.c:66
struct png_info_def **typedef void(__cdecl typeof(png_destroy_read_struct))(struct png_struct_def **
Definition: typeof.h:49
int last_addon_message
Definition: jpeglib.h:754
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Definition: djpeg.c:382
#define ERREXIT(msg)
Definition: rdjpgcom.c:72
int main(int argc, char **argv)
Definition: djpeg.c:437
static const char *const cdjpeg_message_table[]
Definition: djpeg.c:47
#define GETJOCTET(value)
Definition: jmorecfg.h:171
#define TRUE
Definition: types.h:120
FILE * stdin
#define DEFAULT_FMT
Definition: djpeg.c:72
#define JDCT_DEFAULT
Definition: jpeglib.h:247
Definition: djpeg.c:64
void * arg
Definition: msvc.h:10
const char *const * addon_message_table
Definition: jpeglib.h:752
#define argv
Definition: mplay32.c:18
FILE * stdout
read_stdin(void)
Definition: cdjpeg.c:149
#define EXIT_SUCCESS
Definition: rdjpgcom.c:55
#define jpeg_create_decompress(cinfo)
Definition: jpeglib.h:962
Definition: djpeg.c:62
#define FALSE
Definition: types.h:117
_Check_return_opt_ _CRTIMP int __cdecl fprintf(_Inout_ FILE *_File, _In_z_ _Printf_format_string_ const char *_Format,...)
#define EXIT_WARNING
Definition: cdjpeg.h:187
#define JPEG_APP0
Definition: jpeglib.h:1128
#define JCOPYRIGHT
Definition: jversion.h:14
smooth NULL
Definition: ftsmooth.c:416
_Check_return_ _CRTIMP int __cdecl sscanf(_In_z_ const char *_Src, _In_z_ _Scanf_format_string_ const char *_Format,...)
usage(void)
Definition: djpeg.c:92
Definition: djpeg.c:65
keymatch(char *arg, const char *keyword, int minchars)
Definition: cdjpeg.c:122
#define LOCAL(type)
Definition: jmorecfg.h:289
GLuint GLfloat * val
Definition: glext.h:7180
FILE * output_file
Definition: cdjpeg.h:63
_Check_return_opt_ _CRTIMP int __cdecl putc(_In_ int _Ch, _Inout_ FILE *_File)
int first_addon_message
Definition: jpeglib.h:753
Definition: djpeg.c:61
GLenum GLuint GLenum GLsizei length
Definition: glext.h:5579
jpeg_stdio_src(j_decompress_ptr cinfo, FILE *infile)
Definition: jdatasrc.c:212
size_t bytes_in_buffer
Definition: jpeglib.h:786
static char * outfilename
Definition: djpeg.c:88
#define EXIT_FAILURE
Definition: jerror.c:33
parse_switches(j_decompress_ptr cinfo, int argc, char **argv, int last_file_arg_seen, boolean for_real)
Definition: djpeg.c:167
struct jpeg_progress_mgr pub
Definition: cdjpeg.h:83
static IMAGE_FORMATS requested_fmt
Definition: djpeg.c:75
jpeg_getc(j_decompress_ptr cinfo)
Definition: djpeg.c:367
jpeg_finish_decompress(j_decompress_ptr cinfo)
Definition: jdapimin.c:373
Definition: djpeg.c:68
static const WCHAR L[]
Definition: oid.c:1250
GLsizeiptr const GLvoid GLenum usage
Definition: glext.h:5919
jpeg_set_marker_processor(j_decompress_ptr cinfo, int marker_code, jpeg_marker_parser_method routine)
Definition: jdmarker.c:1494
_Check_return_opt_ _CRTIMP int __cdecl fclose(_Inout_ FILE *_File)
_Check_return_ _CRTIMP FILE *__cdecl fopen(_In_z_ const char *_Filename, _In_z_ const char *_Mode)
jpeg_destroy_decompress(j_decompress_ptr cinfo)
Definition: jdapimin.c:92
#define WRITE_BINARY
Definition: wrjpgcom.c:47
jpeg_read_scanlines(j_decompress_ptr cinfo, JSAMPARRAY scanlines, JDIMENSION max_lines)
Definition: jdapistd.c:153
#define METHODDEF(type)
Definition: jmorecfg.h:287
IMAGE_FORMATS
Definition: djpeg.c:60
JDIMENSION buffer_height
Definition: cdjpeg.h:70
cd_progress_ptr progress
Definition: cdjpeg.h:152
#define isprint(c)
Definition: acclib.h:73
write_stdout(void)
Definition: cdjpeg.c:167
jpeg_std_error(struct jpeg_error_mgr *err)
Definition: jerror.c:232
unsigned int JDIMENSION
Definition: jmorecfg.h:229
FILE * stderr
signed int INT32
const JOCTET * next_input_byte
Definition: jpeglib.h:785
void exit(int exitcode)
Definition: _exit.c:33
static const char * progname
Definition: djpeg.c:87
#define JPEG_COM
Definition: jpeglib.h:1129
#define JVERSION
Definition: jversion.h:12
Definition: djpeg.c:63