ReactOS  0.4.14-dev-599-g2d4d3f5
tif_strip.c
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1 /*
2  * Copyright (c) 1991-1997 Sam Leffler
3  * Copyright (c) 1991-1997 Silicon Graphics, Inc.
4  *
5  * Permission to use, copy, modify, distribute, and sell this software and
6  * its documentation for any purpose is hereby granted without fee, provided
7  * that (i) the above copyright notices and this permission notice appear in
8  * all copies of the software and related documentation, and (ii) the names of
9  * Sam Leffler and Silicon Graphics may not be used in any advertising or
10  * publicity relating to the software without the specific, prior written
11  * permission of Sam Leffler and Silicon Graphics.
12  *
13  * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
14  * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
15  * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
16  *
17  * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
18  * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
19  * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
20  * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
21  * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
22  * OF THIS SOFTWARE.
23  */
24 
25 /*
26  * TIFF Library.
27  *
28  * Strip-organized Image Support Routines.
29  */
30 #include <precomp.h>
31 
32 /*
33  * Compute which strip a (row,sample) value is in.
34  */
35 uint32
37 {
38  static const char module[] = "TIFFComputeStrip";
39  TIFFDirectory *td = &tif->tif_dir;
40  uint32 strip;
41 
42  strip = row / td->td_rowsperstrip;
44  if (sample >= td->td_samplesperpixel) {
46  "%lu: Sample out of range, max %lu",
47  (unsigned long) sample, (unsigned long) td->td_samplesperpixel);
48  return (0);
49  }
50  strip += (uint32)sample*td->td_stripsperimage;
51  }
52  return (strip);
53 }
54 
55 /*
56  * Compute how many strips are in an image.
57  */
58 uint32
60 {
61  TIFFDirectory *td = &tif->tif_dir;
62  uint32 nstrips;
63 
64  nstrips = (td->td_rowsperstrip == (uint32) -1 ? 1 :
67  nstrips = _TIFFMultiply32(tif, nstrips, (uint32)td->td_samplesperpixel,
68  "TIFFNumberOfStrips");
69  return (nstrips);
70 }
71 
72 /*
73  * Compute the # bytes in a variable height, row-aligned strip.
74  */
75 uint64
77 {
78  static const char module[] = "TIFFVStripSize64";
79  TIFFDirectory *td = &tif->tif_dir;
80  if (nrows==(uint32)(-1))
81  nrows=td->td_imagelength;
84  (!isUpSampled(tif)))
85  {
86  /*
87  * Packed YCbCr data contain one Cb+Cr for every
88  * HorizontalSampling*VerticalSampling Y values.
89  * Must also roundup width and height when calculating
90  * since images that are not a multiple of the
91  * horizontal/vertical subsampling area include
92  * YCbCr data for the extended image.
93  */
94  uint16 ycbcrsubsampling[2];
95  uint16 samplingblock_samples;
96  uint32 samplingblocks_hor;
97  uint32 samplingblocks_ver;
98  uint64 samplingrow_samples;
99  uint64 samplingrow_size;
100  if(td->td_samplesperpixel!=3)
101  {
103  "Invalid td_samplesperpixel value");
104  return 0;
105  }
106  TIFFGetFieldDefaulted(tif,TIFFTAG_YCBCRSUBSAMPLING,ycbcrsubsampling+0,
107  ycbcrsubsampling+1);
108  if ((ycbcrsubsampling[0] != 1 && ycbcrsubsampling[0] != 2 && ycbcrsubsampling[0] != 4)
109  ||(ycbcrsubsampling[1] != 1 && ycbcrsubsampling[1] != 2 && ycbcrsubsampling[1] != 4))
110  {
112  "Invalid YCbCr subsampling (%dx%d)",
113  ycbcrsubsampling[0],
114  ycbcrsubsampling[1] );
115  return 0;
116  }
117  samplingblock_samples=ycbcrsubsampling[0]*ycbcrsubsampling[1]+2;
118  samplingblocks_hor=TIFFhowmany_32(td->td_imagewidth,ycbcrsubsampling[0]);
119  samplingblocks_ver=TIFFhowmany_32(nrows,ycbcrsubsampling[1]);
120  samplingrow_samples=_TIFFMultiply64(tif,samplingblocks_hor,samplingblock_samples,module);
121  samplingrow_size=TIFFhowmany8_64(_TIFFMultiply64(tif,samplingrow_samples,td->td_bitspersample,module));
122  return(_TIFFMultiply64(tif,samplingrow_size,samplingblocks_ver,module));
123  }
124  else
125  return(_TIFFMultiply64(tif,nrows,TIFFScanlineSize64(tif),module));
126 }
127 tmsize_t
129 {
130  static const char module[] = "TIFFVStripSize";
131  uint64 m;
132  m=TIFFVStripSize64(tif,nrows);
133  return _TIFFCastUInt64ToSSize(tif, m, module);
134 }
135 
136 /*
137  * Compute the # bytes in a raw strip.
138  */
139 uint64
141 {
142  static const char module[] = "TIFFRawStripSize64";
143  uint64 bytecount = TIFFGetStrileByteCount(tif, strip);
144 
145  if (bytecount == 0)
146  {
147 #if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__))
149  "%I64u: Invalid strip byte count, strip %lu",
150  (unsigned __int64) bytecount,
151  (unsigned long) strip);
152 #else
154  "%llu: Invalid strip byte count, strip %lu",
155  (unsigned long long) bytecount,
156  (unsigned long) strip);
157 #endif
158  bytecount = (uint64) -1;
159  }
160 
161  return bytecount;
162 }
163 tmsize_t
165 {
166  static const char module[] = "TIFFRawStripSize";
167  uint64 m;
168  tmsize_t n;
169  m=TIFFRawStripSize64(tif,strip);
170  if (m==(uint64)(-1))
171  n=(tmsize_t)(-1);
172  else
173  {
174  n=(tmsize_t)m;
175  if ((uint64)n!=m)
176  {
177  TIFFErrorExt(tif->tif_clientdata,module,"Integer overflow");
178  n=0;
179  }
180  }
181  return(n);
182 }
183 
184 /*
185  * Compute the # bytes in a (row-aligned) strip.
186  *
187  * Note that if RowsPerStrip is larger than the
188  * recorded ImageLength, then the strip size is
189  * truncated to reflect the actual space required
190  * to hold the strip.
191  */
192 uint64
194 {
195  TIFFDirectory* td = &tif->tif_dir;
196  uint32 rps = td->td_rowsperstrip;
197  if (rps > td->td_imagelength)
198  rps = td->td_imagelength;
199  return (TIFFVStripSize64(tif, rps));
200 }
201 tmsize_t
203 {
204  static const char module[] = "TIFFStripSize";
205  uint64 m;
206  m=TIFFStripSize64(tif);
207  return _TIFFCastUInt64ToSSize(tif, m, module);
208 }
209 
210 /*
211  * Compute a default strip size based on the image
212  * characteristics and a requested value. If the
213  * request is <1 then we choose a strip size according
214  * to certain heuristics.
215  */
216 uint32
218 {
219  return (*tif->tif_defstripsize)(tif, request);
220 }
221 
222 uint32
224 {
225  if ((int32) s < 1) {
226  /*
227  * If RowsPerStrip is unspecified, try to break the
228  * image up into strips that are approximately
229  * STRIP_SIZE_DEFAULT bytes long.
230  */
231  uint64 scanlinesize;
232  uint64 rows;
233  scanlinesize=TIFFScanlineSize64(tif);
234  if (scanlinesize==0)
235  scanlinesize=1;
236  rows=(uint64)STRIP_SIZE_DEFAULT/scanlinesize;
237  if (rows==0)
238  rows=1;
239  else if (rows>0xFFFFFFFF)
240  rows=0xFFFFFFFF;
241  s=(uint32)rows;
242  }
243  return (s);
244 }
245 
246 /*
247  * Return the number of bytes to read/write in a call to
248  * one of the scanline-oriented i/o routines. Note that
249  * this number may be 1/samples-per-pixel if data is
250  * stored as separate planes.
251  * The ScanlineSize in case of YCbCrSubsampling is defined as the
252  * strip size divided by the strip height, i.e. the size of a pack of vertical
253  * subsampling lines divided by vertical subsampling. It should thus make
254  * sense when multiplied by a multiple of vertical subsampling.
255  */
256 uint64
258 {
259  static const char module[] = "TIFFScanlineSize64";
260  TIFFDirectory *td = &tif->tif_dir;
261  uint64 scanline_size;
263  {
264  if ((td->td_photometric==PHOTOMETRIC_YCBCR)&&
265  (td->td_samplesperpixel==3)&&
266  (!isUpSampled(tif)))
267  {
268  uint16 ycbcrsubsampling[2];
269  uint16 samplingblock_samples;
270  uint32 samplingblocks_hor;
271  uint64 samplingrow_samples;
272  uint64 samplingrow_size;
273  if(td->td_samplesperpixel!=3)
274  {
276  "Invalid td_samplesperpixel value");
277  return 0;
278  }
280  ycbcrsubsampling+0,
281  ycbcrsubsampling+1);
282  if (((ycbcrsubsampling[0]!=1)&&(ycbcrsubsampling[0]!=2)&&(ycbcrsubsampling[0]!=4)) ||
283  ((ycbcrsubsampling[1]!=1)&&(ycbcrsubsampling[1]!=2)&&(ycbcrsubsampling[1]!=4)))
284  {
286  "Invalid YCbCr subsampling");
287  return 0;
288  }
289  samplingblock_samples = ycbcrsubsampling[0]*ycbcrsubsampling[1]+2;
290  samplingblocks_hor = TIFFhowmany_32(td->td_imagewidth,ycbcrsubsampling[0]);
291  samplingrow_samples = _TIFFMultiply64(tif,samplingblocks_hor,samplingblock_samples,module);
292  samplingrow_size = TIFFhowmany_64(_TIFFMultiply64(tif,samplingrow_samples,td->td_bitspersample,module),8);
293  scanline_size = (samplingrow_size/ycbcrsubsampling[1]);
294  }
295  else
296  {
297  uint64 scanline_samples;
298  scanline_samples=_TIFFMultiply64(tif,td->td_imagewidth,td->td_samplesperpixel,module);
299  scanline_size=TIFFhowmany_64(_TIFFMultiply64(tif,scanline_samples,td->td_bitspersample,module),8);
300  }
301  }
302  else
303  {
305  }
306  if (scanline_size == 0)
307  {
308  TIFFErrorExt(tif->tif_clientdata,module,"Computed scanline size is zero");
309  return 0;
310  }
311  return(scanline_size);
312 }
313 tmsize_t
315 {
316  static const char module[] = "TIFFScanlineSize";
317  uint64 m;
318  m=TIFFScanlineSize64(tif);
319  return _TIFFCastUInt64ToSSize(tif, m, module);
320 }
321 
322 /*
323  * Return the number of bytes required to store a complete
324  * decoded and packed raster scanline (as opposed to the
325  * I/O size returned by TIFFScanlineSize which may be less
326  * if data is store as separate planes).
327  */
328 uint64
330 {
331  static const char module[] = "TIFFRasterScanlineSize64";
332  TIFFDirectory *td = &tif->tif_dir;
333  uint64 scanline;
334 
335  scanline = _TIFFMultiply64(tif, td->td_bitspersample, td->td_imagewidth, module);
337  scanline = _TIFFMultiply64(tif, scanline, td->td_samplesperpixel, module);
338  return (TIFFhowmany8_64(scanline));
339  } else
340  return (_TIFFMultiply64(tif, TIFFhowmany8_64(scanline),
341  td->td_samplesperpixel, module));
342 }
343 tmsize_t
345 {
346  static const char module[] = "TIFFRasterScanlineSize";
347  uint64 m;
349  return _TIFFCastUInt64ToSSize(tif, m, module);
350 }
351 
352 /* vim: set ts=8 sts=8 sw=8 noet: */
353 /*
354  * Local Variables:
355  * mode: c
356  * c-basic-offset: 8
357  * fill-column: 78
358  * End:
359  */
unsigned long long uint64
Definition: platform.h:18
uint64 TIFFRawStripSize64(TIFF *tif, uint32 strip)
Definition: tif_strip.c:140
uint16 td_bitspersample
Definition: tif_dir.h:75
#define PHOTOMETRIC_YCBCR
Definition: tiff.h:202
uint64 TIFFRasterScanlineSize64(TIFF *tif)
Definition: tif_strip.c:329
uint32 _TIFFMultiply32(TIFF *tif, uint32 first, uint32 second, const char *where)
Definition: tif_aux.c:37
uint32 TIFFNumberOfStrips(TIFF *tif)
Definition: tif_strip.c:59
#define TIFFhowmany_32(x, y)
Definition: tiffiop.h:264
tmsize_t TIFFVStripSize(TIFF *tif, uint32 nrows)
Definition: tif_strip.c:128
#define STRIP_SIZE_DEFAULT
Definition: tiffiop.h:69
uint64 TIFFVStripSize64(TIFF *tif, uint32 nrows)
Definition: tif_strip.c:76
unsigned int uint32
Definition: types.h:32
GLdouble n
Definition: glext.h:7729
#define TIFFTAG_YCBCRSUBSAMPLING
Definition: tiff.h:367
thandle_t tif_clientdata
Definition: tiffiop.h:207
#define isUpSampled(tif)
Definition: tiffiop.h:232
#define TIFFhowmany8_64(x)
Definition: tiffiop.h:274
const GLfloat * m
Definition: glext.h:10848
Definition: tiffiop.h:115
uint32 TIFFDefaultStripSize(TIFF *tif, uint32 request)
Definition: tif_strip.c:217
tmsize_t TIFFStripSize(TIFF *tif)
Definition: tif_strip.c:202
TIFF_SSIZE_T tmsize_t
Definition: tiffio.h:65
uint64 TIFFScanlineSize64(TIFF *tif)
Definition: tif_strip.c:257
uint32 td_stripsperimage
Definition: tif_dir.h:99
uint16 td_planarconfig
Definition: tif_dir.h:89
uint32 _TIFFDefaultStripSize(TIFF *tif, uint32 s)
Definition: tif_strip.c:223
int TIFFGetFieldDefaulted(TIFF *tif, uint32 tag,...)
Definition: tif_aux.c:345
uint32 td_imagelength
Definition: tif_dir.h:72
uint16 td_photometric
Definition: tif_dir.h:78
void TIFFErrorExt(thandle_t fd, const char *module, const char *fmt,...)
Definition: tif_error.c:65
#define PLANARCONFIG_SEPARATE
Definition: tiff.h:241
GLdouble s
Definition: gl.h:2039
uint32 TIFFComputeStrip(TIFF *tif, uint32 row, uint16 sample)
Definition: tif_strip.c:36
uint32 td_rowsperstrip
Definition: tif_dir.h:83
uint64 TIFFStripSize64(TIFF *tif)
Definition: tif_strip.c:193
tmsize_t TIFFScanlineSize(TIFF *tif)
Definition: tif_strip.c:314
unsigned short uint16
Definition: types.h:30
TIFFDirectory tif_dir
Definition: tiffiop.h:151
tmsize_t _TIFFCastUInt64ToSSize(TIFF *tif, uint64 val, const char *module)
Definition: tif_aux.c:83
uint64 _TIFFMultiply64(TIFF *tif, uint64 first, uint64 second, const char *where)
Definition: tif_aux.c:48
#define TIFFhowmany_64(x, y)
Definition: tiffiop.h:273
Definition: tftpd.h:85
long int32
Definition: platform.h:12
uint16 td_samplesperpixel
Definition: tif_dir.h:82
tmsize_t TIFFRawStripSize(TIFF *tif, uint32 strip)
Definition: tif_strip.c:164
tmsize_t TIFFRasterScanlineSize(TIFF *tif)
Definition: tif_strip.c:344
uint32 td_imagewidth
Definition: tif_dir.h:72
TIFFStripMethod tif_defstripsize
Definition: tiffiop.h:189
uint64 TIFFGetStrileByteCount(TIFF *tif, uint32 strile)
Definition: tif_dirread.c:6305
#define __int64
Definition: basetyps.h:16
#define PLANARCONFIG_CONTIG
Definition: tiff.h:240
struct png_info_def *typedef unsigned char **typedef struct png_info_def *typedef struct png_info_def *typedef struct png_info_def *typedef unsigned char ** row
Definition: typeof.h:78