Visualization Library 2.0.0-b5

A lightweight C++ OpenGL middleware for 2D/3D graphics

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tif_predict.c
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1 /* $Id: tif_predict.c,v 1.11 2006/03/03 14:10:09 dron Exp $ */
2 
3 /*
4  * Copyright (c) 1988-1997 Sam Leffler
5  * Copyright (c) 1991-1997 Silicon Graphics, Inc.
6  *
7  * Permission to use, copy, modify, distribute, and sell this software and
8  * its documentation for any purpose is hereby granted without fee, provided
9  * that (i) the above copyright notices and this permission notice appear in
10  * all copies of the software and related documentation, and (ii) the names of
11  * Sam Leffler and Silicon Graphics may not be used in any advertising or
12  * publicity relating to the software without the specific, prior written
13  * permission of Sam Leffler and Silicon Graphics.
14  *
15  * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
16  * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
17  * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
18  *
19  * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
20  * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
21  * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
22  * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
23  * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
24  * OF THIS SOFTWARE.
25  */
26 
27 /*
28  * TIFF Library.
29  *
30  * Predictor Tag Support (used by multiple codecs).
31  */
32 #include "tiffiop.h"
33 #include "tif_predict.h"
34 
35 #define PredictorState(tif) ((TIFFPredictorState*) (tif)->tif_data)
36 
37 static void horAcc8(TIFF*, tidata_t, tsize_t);
38 static void horAcc16(TIFF*, tidata_t, tsize_t);
39 static void swabHorAcc16(TIFF*, tidata_t, tsize_t);
40 static void horDiff8(TIFF*, tidata_t, tsize_t);
41 static void horDiff16(TIFF*, tidata_t, tsize_t);
42 static void fpAcc(TIFF*, tidata_t, tsize_t);
43 static void fpDiff(TIFF*, tidata_t, tsize_t);
44 static int PredictorDecodeRow(TIFF*, tidata_t, tsize_t, tsample_t);
45 static int PredictorDecodeTile(TIFF*, tidata_t, tsize_t, tsample_t);
46 static int PredictorEncodeRow(TIFF*, tidata_t, tsize_t, tsample_t);
47 static int PredictorEncodeTile(TIFF*, tidata_t, tsize_t, tsample_t);
48 
49 static int
50 PredictorSetup(TIFF* tif)
51 {
52  static const char module[] = "PredictorSetup";
53 
55  TIFFDirectory* td = &tif->tif_dir;
56 
57  switch (sp->predictor) /* no differencing */
58  {
59  case PREDICTOR_NONE:
60  return 1;
62  if (td->td_bitspersample != 8
63  && td->td_bitspersample != 16) {
64  TIFFErrorExt(tif->tif_clientdata, module,
65  "Horizontal differencing \"Predictor\" not supported with %d-bit samples",
66  td->td_bitspersample);
67  return 0;
68  }
69  break;
72  TIFFErrorExt(tif->tif_clientdata, module,
73  "Floating point \"Predictor\" not supported with %d data format",
74  td->td_sampleformat);
75  return 0;
76  }
77  break;
78  default:
79  TIFFErrorExt(tif->tif_clientdata, module,
80  "\"Predictor\" value %d not supported",
81  sp->predictor);
82  return 0;
83  }
85  td->td_samplesperpixel : 1);
86  /*
87  * Calculate the scanline/tile-width size in bytes.
88  */
89  if (isTiled(tif))
90  sp->rowsize = TIFFTileRowSize(tif);
91  else
92  sp->rowsize = TIFFScanlineSize(tif);
93 
94  return 1;
95 }
96 
97 static int
98 PredictorSetupDecode(TIFF* tif)
99 {
101  TIFFDirectory* td = &tif->tif_dir;
102 
103  if (!(*sp->setupdecode)(tif) || !PredictorSetup(tif))
104  return 0;
105 
106  if (sp->predictor == 2) {
107  switch (td->td_bitspersample) {
108  case 8: sp->pfunc = horAcc8; break;
109  case 16: sp->pfunc = horAcc16; break;
110  }
111  /*
112  * Override default decoding method with one that does the
113  * predictor stuff.
114  */
115  sp->coderow = tif->tif_decoderow;
116  tif->tif_decoderow = PredictorDecodeRow;
117  sp->codestrip = tif->tif_decodestrip;
118  tif->tif_decodestrip = PredictorDecodeTile;
119  sp->codetile = tif->tif_decodetile;
120  tif->tif_decodetile = PredictorDecodeTile;
121  /*
122  * If the data is horizontally differenced 16-bit data that
123  * requires byte-swapping, then it must be byte swapped before
124  * the accumulation step. We do this with a special-purpose
125  * routine and override the normal post decoding logic that
126  * the library setup when the directory was read.
127  */
128  if (tif->tif_flags & TIFF_SWAB) {
129  if (sp->pfunc == horAcc16) {
130  sp->pfunc = swabHorAcc16;
132  } /* else handle 32-bit case... */
133  }
134  }
135 
136  else if (sp->predictor == 3) {
137  sp->pfunc = fpAcc;
138  /*
139  * Override default decoding method with one that does the
140  * predictor stuff.
141  */
142  sp->coderow = tif->tif_decoderow;
143  tif->tif_decoderow = PredictorDecodeRow;
144  sp->codestrip = tif->tif_decodestrip;
145  tif->tif_decodestrip = PredictorDecodeTile;
146  sp->codetile = tif->tif_decodetile;
147  tif->tif_decodetile = PredictorDecodeTile;
148  /*
149  * The data should not be swapped outside of the floating
150  * point predictor, the accumulation routine should return
151  * byres in the native order.
152  */
153  if (tif->tif_flags & TIFF_SWAB) {
155  }
156  /*
157  * Allocate buffer to keep the decoded bytes before
158  * rearranging in the ight order
159  */
160  }
161 
162  return 1;
163 }
164 
165 static int
166 PredictorSetupEncode(TIFF* tif)
167 {
169  TIFFDirectory* td = &tif->tif_dir;
170 
171  if (!(*sp->setupencode)(tif) || !PredictorSetup(tif))
172  return 0;
173 
174  if (sp->predictor == 2) {
175  switch (td->td_bitspersample) {
176  case 8: sp->pfunc = horDiff8; break;
177  case 16: sp->pfunc = horDiff16; break;
178  }
179  /*
180  * Override default encoding method with one that does the
181  * predictor stuff.
182  */
183  sp->coderow = tif->tif_encoderow;
184  tif->tif_encoderow = PredictorEncodeRow;
185  sp->codestrip = tif->tif_encodestrip;
186  tif->tif_encodestrip = PredictorEncodeTile;
187  sp->codetile = tif->tif_encodetile;
188  tif->tif_encodetile = PredictorEncodeTile;
189  }
190 
191  else if (sp->predictor == 3) {
192  sp->pfunc = fpDiff;
193  /*
194  * Override default encoding method with one that does the
195  * predictor stuff.
196  */
197  sp->coderow = tif->tif_encoderow;
198  tif->tif_encoderow = PredictorEncodeRow;
199  sp->codestrip = tif->tif_encodestrip;
200  tif->tif_encodestrip = PredictorEncodeTile;
201  sp->codetile = tif->tif_encodetile;
202  tif->tif_encodetile = PredictorEncodeTile;
203  }
204 
205  return 1;
206 }
207 
208 #define REPEAT4(n, op) \
209  switch (n) { \
210  default: { int i; for (i = n-4; i > 0; i--) { op; } } \
211  case 4: op; \
212  case 3: op; \
213  case 2: op; \
214  case 1: op; \
215  case 0: ; \
216  }
217 
218 static void
219 horAcc8(TIFF* tif, tidata_t cp0, tsize_t cc)
220 {
221  tsize_t stride = PredictorState(tif)->stride;
222 
223  char* cp = (char*) cp0;
224  if (cc > stride) {
225  cc -= stride;
226  /*
227  * Pipeline the most common cases.
228  */
229  if (stride == 3) {
230  unsigned int cr = cp[0];
231  unsigned int cg = cp[1];
232  unsigned int cb = cp[2];
233  do {
234  cc -= 3, cp += 3;
235  cp[0] = (char) (cr += cp[0]);
236  cp[1] = (char) (cg += cp[1]);
237  cp[2] = (char) (cb += cp[2]);
238  } while ((int32) cc > 0);
239  } else if (stride == 4) {
240  unsigned int cr = cp[0];
241  unsigned int cg = cp[1];
242  unsigned int cb = cp[2];
243  unsigned int ca = cp[3];
244  do {
245  cc -= 4, cp += 4;
246  cp[0] = (char) (cr += cp[0]);
247  cp[1] = (char) (cg += cp[1]);
248  cp[2] = (char) (cb += cp[2]);
249  cp[3] = (char) (ca += cp[3]);
250  } while ((int32) cc > 0);
251  } else {
252  do {
253  REPEAT4(stride, cp[stride] =
254  (char) (cp[stride] + *cp); cp++)
255  cc -= stride;
256  } while ((int32) cc > 0);
257  }
258  }
259 }
260 
261 static void
262 swabHorAcc16(TIFF* tif, tidata_t cp0, tsize_t cc)
263 {
264  tsize_t stride = PredictorState(tif)->stride;
265  uint16* wp = (uint16*) cp0;
266  tsize_t wc = cc / 2;
267 
268  if (wc > stride) {
269  TIFFSwabArrayOfShort(wp, wc);
270  wc -= stride;
271  do {
272  REPEAT4(stride, wp[stride] += wp[0]; wp++)
273  wc -= stride;
274  } while ((int32) wc > 0);
275  }
276 }
277 
278 static void
279 horAcc16(TIFF* tif, tidata_t cp0, tsize_t cc)
280 {
281  tsize_t stride = PredictorState(tif)->stride;
282  uint16* wp = (uint16*) cp0;
283  tsize_t wc = cc / 2;
284 
285  if (wc > stride) {
286  wc -= stride;
287  do {
288  REPEAT4(stride, wp[stride] += wp[0]; wp++)
289  wc -= stride;
290  } while ((int32) wc > 0);
291  }
292 }
293 
294 /*
295  * Floating point predictor accumulation routine.
296  */
297 static void
298 fpAcc(TIFF* tif, tidata_t cp0, tsize_t cc)
299 {
300  tsize_t stride = PredictorState(tif)->stride;
301  uint32 bps = tif->tif_dir.td_bitspersample / 8;
302  tsize_t wc = cc / bps;
303  tsize_t count = cc;
304  uint8 *cp = (uint8 *) cp0;
305  uint8 *tmp = (uint8 *)_TIFFmalloc(cc);
306 
307  if (!tmp)
308  return;
309 
310  while (count > stride) {
311  REPEAT4(stride, cp[stride] += cp[0]; cp++)
312  count -= stride;
313  }
314 
315  _TIFFmemcpy(tmp, cp0, cc);
316  cp = (uint8 *) cp0;
317  for (count = 0; count < wc; count++) {
318  uint32 byte;
319  for (byte = 0; byte < bps; byte++) {
320 #if WORDS_BIGENDIAN
321  cp[bps * count + byte] = tmp[byte * wc + count];
322 #else
323  cp[bps * count + byte] =
324  tmp[(bps - byte - 1) * wc + count];
325 #endif
326  }
327  }
328  _TIFFfree(tmp);
329 }
330 
331 /*
332  * Decode a scanline and apply the predictor routine.
333  */
334 static int
335 PredictorDecodeRow(TIFF* tif, tidata_t op0, tsize_t occ0, tsample_t s)
336 {
338 
339  assert(sp != NULL);
340  assert(sp->coderow != NULL);
341  assert(sp->pfunc != NULL);
342 
343  if ((*sp->coderow)(tif, op0, occ0, s)) {
344  (*sp->pfunc)(tif, op0, occ0);
345  return 1;
346  } else
347  return 0;
348 }
349 
350 /*
351  * Decode a tile/strip and apply the predictor routine.
352  * Note that horizontal differencing must be done on a
353  * row-by-row basis. The width of a "row" has already
354  * been calculated at pre-decode time according to the
355  * strip/tile dimensions.
356  */
357 static int
358 PredictorDecodeTile(TIFF* tif, tidata_t op0, tsize_t occ0, tsample_t s)
359 {
361 
362  assert(sp != NULL);
363  assert(sp->codetile != NULL);
364 
365  if ((*sp->codetile)(tif, op0, occ0, s)) {
366  tsize_t rowsize = sp->rowsize;
367  assert(rowsize > 0);
368  assert(sp->pfunc != NULL);
369  while ((long)occ0 > 0) {
370  (*sp->pfunc)(tif, op0, (tsize_t) rowsize);
371  occ0 -= rowsize;
372  op0 += rowsize;
373  }
374  return 1;
375  } else
376  return 0;
377 }
378 
379 static void
380 horDiff8(TIFF* tif, tidata_t cp0, tsize_t cc)
381 {
383  tsize_t stride = sp->stride;
384  char* cp = (char*) cp0;
385 
386  if (cc > stride) {
387  cc -= stride;
388  /*
389  * Pipeline the most common cases.
390  */
391  if (stride == 3) {
392  int r1, g1, b1;
393  int r2 = cp[0];
394  int g2 = cp[1];
395  int b2 = cp[2];
396  do {
397  r1 = cp[3]; cp[3] = r1-r2; r2 = r1;
398  g1 = cp[4]; cp[4] = g1-g2; g2 = g1;
399  b1 = cp[5]; cp[5] = b1-b2; b2 = b1;
400  cp += 3;
401  } while ((int32)(cc -= 3) > 0);
402  } else if (stride == 4) {
403  int r1, g1, b1, a1;
404  int r2 = cp[0];
405  int g2 = cp[1];
406  int b2 = cp[2];
407  int a2 = cp[3];
408  do {
409  r1 = cp[4]; cp[4] = r1-r2; r2 = r1;
410  g1 = cp[5]; cp[5] = g1-g2; g2 = g1;
411  b1 = cp[6]; cp[6] = b1-b2; b2 = b1;
412  a1 = cp[7]; cp[7] = a1-a2; a2 = a1;
413  cp += 4;
414  } while ((int32)(cc -= 4) > 0);
415  } else {
416  cp += cc - 1;
417  do {
418  REPEAT4(stride, cp[stride] -= cp[0]; cp--)
419  } while ((int32)(cc -= stride) > 0);
420  }
421  }
422 }
423 
424 static void
425 horDiff16(TIFF* tif, tidata_t cp0, tsize_t cc)
426 {
428  tsize_t stride = sp->stride;
429  int16 *wp = (int16*) cp0;
430  tsize_t wc = cc/2;
431 
432  if (wc > stride) {
433  wc -= stride;
434  wp += wc - 1;
435  do {
436  REPEAT4(stride, wp[stride] -= wp[0]; wp--)
437  wc -= stride;
438  } while ((int32) wc > 0);
439  }
440 }
441 
442 /*
443  * Floating point predictor differencing routine.
444  */
445 static void
446 fpDiff(TIFF* tif, tidata_t cp0, tsize_t cc)
447 {
448  tsize_t stride = PredictorState(tif)->stride;
449  uint32 bps = tif->tif_dir.td_bitspersample / 8;
450  tsize_t wc = cc / bps;
451  tsize_t count;
452  uint8 *cp = (uint8 *) cp0;
453  uint8 *tmp = (uint8 *)_TIFFmalloc(cc);
454 
455  if (!tmp)
456  return;
457 
458  _TIFFmemcpy(tmp, cp0, cc);
459  for (count = 0; count < wc; count++) {
460  uint32 byte;
461  for (byte = 0; byte < bps; byte++) {
462 #if WORDS_BIGENDIAN
463  cp[byte * wc + count] = tmp[bps * count + byte];
464 #else
465  cp[(bps - byte - 1) * wc + count] =
466  tmp[bps * count + byte];
467 #endif
468  }
469  }
470  _TIFFfree(tmp);
471 
472  cp = (uint8 *) cp0;
473  cp += cc - stride - 1;
474  for (count = cc; count > stride; count -= stride)
475  REPEAT4(stride, cp[stride] -= cp[0]; cp--)
476 }
477 
478 static int
479 PredictorEncodeRow(TIFF* tif, tidata_t bp, tsize_t cc, tsample_t s)
480 {
482 
483  assert(sp != NULL);
484  assert(sp->pfunc != NULL);
485  assert(sp->coderow != NULL);
486 
487  /* XXX horizontal differencing alters user's data XXX */
488  (*sp->pfunc)(tif, bp, cc);
489  return (*sp->coderow)(tif, bp, cc, s);
490 }
491 
492 static int
493 PredictorEncodeTile(TIFF* tif, tidata_t bp0, tsize_t cc0, tsample_t s)
494 {
496  tsize_t cc = cc0, rowsize;
497  unsigned char* bp = bp0;
498 
499  assert(sp != NULL);
500  assert(sp->pfunc != NULL);
501  assert(sp->codetile != NULL);
502 
503  rowsize = sp->rowsize;
504  assert(rowsize > 0);
505  while ((long)cc > 0) {
506  (*sp->pfunc)(tif, bp, (tsize_t) rowsize);
507  cc -= rowsize;
508  bp += rowsize;
509  }
510  return (*sp->codetile)(tif, bp0, cc0, s);
511 }
512 
513 #define FIELD_PREDICTOR (FIELD_CODEC+0) /* XXX */
514 
515 static const TIFFFieldInfo predictFieldInfo[] = {
517  FALSE, FALSE, "Predictor" },
518 };
519 #define N(a) (sizeof (a) / sizeof (a[0]))
520 
521 static int
522 PredictorVSetField(TIFF* tif, ttag_t tag, va_list ap)
523 {
525 
526  assert(sp != NULL);
527  assert(sp->vsetparent != NULL);
528 
529  switch (tag) {
530  case TIFFTAG_PREDICTOR:
531  sp->predictor = (uint16) va_arg(ap, int);
533  break;
534  default:
535  return (*sp->vsetparent)(tif, tag, ap);
536  }
537  tif->tif_flags |= TIFF_DIRTYDIRECT;
538  return 1;
539 }
540 
541 static int
542 PredictorVGetField(TIFF* tif, ttag_t tag, va_list ap)
543 {
545 
546  assert(sp != NULL);
547  assert(sp->vgetparent != NULL);
548 
549  switch (tag) {
550  case TIFFTAG_PREDICTOR:
551  *va_arg(ap, uint16*) = sp->predictor;
552  break;
553  default:
554  return (*sp->vgetparent)(tif, tag, ap);
555  }
556  return 1;
557 }
558 
559 static void
560 PredictorPrintDir(TIFF* tif, FILE* fd, long flags)
561 {
563 
564  (void) flags;
565  if (TIFFFieldSet(tif,FIELD_PREDICTOR)) {
566  fprintf(fd, " Predictor: ");
567  switch (sp->predictor) {
568  case 1: fprintf(fd, "none "); break;
569  case 2: fprintf(fd, "horizontal differencing "); break;
570  case 3: fprintf(fd, "floating point predictor "); break;
571  }
572  fprintf(fd, "%u (0x%x)\n", sp->predictor, sp->predictor);
573  }
574  if (sp->printdir)
575  (*sp->printdir)(tif, fd, flags);
576 }
577 
578 int
580 {
582 
583  assert(sp != 0);
584 
585  /*
586  * Merge codec-specific tag information and
587  * override parent get/set field methods.
588  */
589  _TIFFMergeFieldInfo(tif, predictFieldInfo, N(predictFieldInfo));
592  PredictorVGetField;/* hook for predictor tag */
595  PredictorVSetField;/* hook for predictor tag */
596  sp->printdir = tif->tif_tagmethods.printdir;
597  tif->tif_tagmethods.printdir =
598  PredictorPrintDir; /* hook for predictor tag */
599 
600  sp->setupdecode = tif->tif_setupdecode;
601  tif->tif_setupdecode = PredictorSetupDecode;
602  sp->setupencode = tif->tif_setupencode;
603  tif->tif_setupencode = PredictorSetupEncode;
604 
605  sp->predictor = 1; /* default value */
606  sp->pfunc = NULL; /* no predictor routine */
607  return 1;
608 }
609 
610 int
612 {
614 
615  assert(sp != 0);
616 
619  tif->tif_tagmethods.printdir = sp->printdir;
620  tif->tif_setupdecode = sp->setupdecode;
621  tif->tif_setupencode = sp->setupencode;
622 
623  return 1;
624 }
625 
626 /* vim: set ts=8 sts=8 sw=8 noet: */
int32 tsize_t
Definition: tiffio.h:66
uint16 tsample_t
Definition: tiffio.h:63
#define PredictorState(tif)
Definition: tif_predict.c:35
uint32 ttag_t
Definition: tiffio.h:61
TIFFCodeMethod tif_decoderow
Definition: tiffiop.h:146
TIFFTagMethods tif_tagmethods
Definition: tiffiop.h:183
tsize_t TIFFTileRowSize(TIFF *tif)
Definition: tif_tile.c:174
TIFFPostMethod pfunc
Definition: tif_predict.h:43
uint16 td_bitspersample
Definition: tif_dir.h:44
TIFFVGetMethod vgetparent
Definition: tif_predict.h:47
#define NULL
Definition: ftobjs.h:61
TIFFCodeMethod tif_encodestrip
Definition: tiffiop.h:149
TIFFCodeMethod tif_encoderow
Definition: tiffiop.h:147
unsigned char uint8
Definition: tiff.h:67
unsigned char byte
Definition: tif_acorn.c:69
#define FIELD_PREDICTOR
Definition: tif_predict.c:513
tsize_t TIFFScanlineSize(TIFF *tif)
Definition: tif_strip.c:227
#define PREDICTOR_HORIZONTAL
Definition: tiff.h:283
thandle_t tif_clientdata
Definition: tiffiop.h:171
void TIFFSwabArrayOfShort(uint16 *wp, register unsigned long n)
Definition: tif_swab.c:59
TIFFVSetMethod vsetparent
Definition: tif_predict.h:48
int TIFFPredictorCleanup(TIFF *tif)
Definition: tif_predict.c:611
typedef void(APIENTRY *GLDEBUGPROCARB)(GLenum source
#define TIFF_DIRTYDIRECT
Definition: tiffiop.h:102
Definition: tiffiop.h:95
void _TIFFmemcpy(tdata_t d, const tdata_t s, tsize_t c)
Definition: tif_acorn.c:485
TIFFPrintMethod printdir
Definition: tiffio.h:332
#define TIFFSetFieldBit(tif, field)
Definition: tif_dir.h:168
#define TIFF_SWAB
Definition: tiffiop.h:106
#define PREDICTOR_NONE
Definition: tiff.h:282
uint32 tif_flags
Definition: tiffiop.h:99
#define N(a)
Definition: tif_predict.c:519
TIFFCodeMethod tif_decodestrip
Definition: tiffiop.h:148
TIFFCodeMethod tif_encodetile
Definition: tiffiop.h:151
TIFFCodeMethod codestrip
Definition: tif_predict.h:45
unsigned short uint16
Definition: tiff.h:71
TIFFBoolMethod setupdecode
Definition: tif_predict.h:50
GLbitfield flags
TIFFVSetMethod vsetfield
Definition: tiffio.h:330
#define SAMPLEFORMAT_IEEEFP
Definition: tiff.h:314
TIFFPostMethod tif_postdecode
Definition: tiffiop.h:178
void _TIFFMergeFieldInfo(TIFF *tif, const TIFFFieldInfo info[], int n)
Definition: tif_dirinfo.c:570
uint16 td_planarconfig
Definition: tif_dir.h:57
void TIFFErrorExt(thandle_t fd, const char *module, const char *fmt,...)
Definition: tif_error.c:63
#define TIFFFieldSet(tif, field)
Definition: tif_dir.h:167
TIFFPrintMethod printdir
Definition: tif_predict.h:49
#define FALSE
Definition: ftobjs.h:57
TIFFCodeMethod tif_decodetile
Definition: tiffiop.h:150
TIFFBoolMethod setupencode
Definition: tif_predict.h:51
#define isTiled(tif)
Definition: tiffiop.h:189
unsigned long uint32
Definition: md5.h:41
void _TIFFNoPostDecode(TIFF *tif, tidata_t buf, tsize_t cc)
Definition: tif_read.c:613
uint16 td_samplesperpixel
Definition: tif_dir.h:51
tidataval_t * tidata_t
Definition: tiffiop.h:84
TIFFCodeMethod coderow
Definition: tif_predict.h:44
int TIFFPredictorInit(TIFF *tif)
Definition: tif_predict.c:579
short int16
Definition: tiff.h:69
TIFFDirectory tif_dir
Definition: tiffiop.h:122
GLdouble s
#define REPEAT4(n, op)
Definition: tif_predict.c:208
#define TIFFTAG_PREDICTOR
Definition: tiff.h:281
void * _TIFFmalloc(tsize_t s)
Definition: tif_acorn.c:461
GLuint GLuint GLsizei count
uint16 td_sampleformat
Definition: tif_dir.h:45
void _TIFFfree(tdata_t p)
Definition: tif_acorn.c:467
#define PREDICTOR_FLOATINGPOINT
Definition: tiff.h:284
GLsizei stride
TIFFVGetMethod vgetfield
Definition: tiffio.h:331
TIFFBoolMethod tif_setupencode
Definition: tiffiop.h:142
TIFFCodeMethod codetile
Definition: tif_predict.h:46
#define PLANARCONFIG_CONTIG
Definition: tiff.h:243
TIFFBoolMethod tif_setupdecode
Definition: tiffiop.h:140