ReactOS  0.4.15-dev-2985-g54406bf
Macros | Functions
bitmap.c File Reference
#include "precomp.h"
Include dependency graph for bitmap.c:

Go to the source code of this file.

Macros

#define CVAL(p)   (*(p++))
 
#define CVAL2(p, v)   { v = (*(p++)); v |= (*(p++)) << 8; }
 
#define UNROLL8(exp)   { exp exp exp exp exp exp exp exp }
 
#define REPEAT(statement)
 
#define MASK_UPDATE()
 

Functions

static RD_BOOL bitmap_decompress1 (uint8 *output, int width, int height, uint8 *input, int size)
 
static RD_BOOL bitmap_decompress2 (uint8 *output, int width, int height, uint8 *input, int size)
 
static RD_BOOL bitmap_decompress3 (uint8 *output, int width, int height, uint8 *input, int size)
 
static int process_plane (uint8 *in, int width, int height, uint8 *out, int size)
 
static RD_BOOL bitmap_decompress4 (uint8 *output, int width, int height, uint8 *input, int size)
 
RD_BOOL bitmap_decompress (uint8 *output, int width, int height, uint8 *input, int size, int Bpp)
 

Macro Definition Documentation

◆ CVAL

#define CVAL (   p)    (*(p++))

Definition at line 29 of file bitmap.c.

◆ CVAL2

#define CVAL2 (   p,
  v 
)    { v = (*(p++)); v |= (*(p++)) << 8; }

Definition at line 32 of file bitmap.c.

◆ MASK_UPDATE

#define MASK_UPDATE ( )
Value:
{ \
mixmask <<= 1; \
if (mixmask == 0) \
{ \
mask = fom_mask ? fom_mask : CVAL(input); \
mixmask = 1; \
} \
}
input
GLenum GLenum GLenum input
Definition: glext.h:9031
CVAL
#define CVAL(p)
Definition: bitmap.c:29

Definition at line 55 of file bitmap.c.

◆ REPEAT

#define REPEAT (   statement)
Value:
{ \
while((count & ~0x7) && ((x+8) < width)) \
UNROLL8( statement; count--; x++; ); \
\
while((count > 0) && (x < width)) \
{ \
statement; \
count--; \
x++; \
} \
}
while
while(CdLookupNextInitialFileDirent(IrpContext, Fcb, FileContext))
width
GLint GLint GLsizei width
Definition: gl.h:1546
count
GLuint GLuint GLsizei count
Definition: gl.h:1545
x
GLint GLint GLint GLint GLint x
Definition: gl.h:1548

Definition at line 42 of file bitmap.c.

◆ UNROLL8

#define UNROLL8 (   exp)    { exp exp exp exp exp exp exp exp }

Definition at line 40 of file bitmap.c.

Function Documentation

◆ bitmap_decompress()

RD_BOOL bitmap_decompress ( uint8 *  output,
int  width,
int  height,
uint8 *  input,
int  size,
int  Bpp 
)

Definition at line 884 of file bitmap.c.

885 {
886  RD_BOOL rv = False;
887 
888  switch (Bpp)
889  {
890  case 1:
891  rv = bitmap_decompress1(output, width, height, input, size);
892  break;
893  case 2:
894  rv = bitmap_decompress2(output, width, height, input, size);
895  break;
896  case 3:
897  rv = bitmap_decompress3(output, width, height, input, size);
898  break;
899  case 4:
900  rv = bitmap_decompress4(output, width, height, input, size);
901  break;
902  default:
903  unimpl("Bpp %d\n", Bpp);
904  break;
905  }
906  return rv;
907 }
width
GLint GLint GLsizei width
Definition: gl.h:1546
output
static UCHAR ULONG UCHAR ULONG UCHAR * output
Definition: bcrypt.c:29
bitmap_decompress1
static RD_BOOL bitmap_decompress1(uint8 *output, int width, int height, uint8 *input, int size)
Definition: bitmap.c:67
bitmap_decompress3
static RD_BOOL bitmap_decompress3(uint8 *output, int width, int height, uint8 *input, int size)
Definition: bitmap.c:464
RD_BOOL
int RD_BOOL
Definition: types.h:21
False
#define False
Definition: types.h:25
size
GLsizeiptr size
Definition: glext.h:5919
bitmap_decompress4
static RD_BOOL bitmap_decompress4(uint8 *output, int width, int height, uint8 *input, int size)
Definition: bitmap.c:856
bitmap_decompress2
static RD_BOOL bitmap_decompress2(uint8 *output, int width, int height, uint8 *input, int size)
Definition: bitmap.c:265
height
GLint GLint GLsizei GLsizei height
Definition: gl.h:1546
input
GLenum GLenum GLenum input
Definition: glext.h:9031
unimpl
void unimpl(char *format,...)
Definition: uimain.c:801

Referenced by process_bitmap_updates(), process_bmpcache(), and process_bmpcache2().

◆ bitmap_decompress1()

static RD_BOOL bitmap_decompress1 ( uint8 *  output,
int  width,
int  height,
uint8 *  input,
int  size 
)
static

Definition at line 67 of file bitmap.c.

68 {
69  uint8 *end = input + size;
70  uint8 *prevline = NULL, *line = NULL;
71  int opcode, count, offset, isfillormix, x = width;
72  int lastopcode = -1, insertmix = False, bicolour = False;
73  uint8 code;
74  uint8 colour1 = 0, colour2 = 0;
75  uint8 mixmask, mask = 0;
76  uint8 mix = 0xff;
77  int fom_mask = 0;
78 
79  while (input < end)
80  {
81  fom_mask = 0;
82  code = CVAL(input);
83  opcode = code >> 4;
84  /* Handle different opcode forms */
85  switch (opcode)
86  {
87  case 0xc:
88  case 0xd:
89  case 0xe:
90  opcode -= 6;
91  count = code & 0xf;
92  offset = 16;
93  break;
94  case 0xf:
95  opcode = code & 0xf;
96  if (opcode < 9)
97  {
98  count = CVAL(input);
99  count |= CVAL(input) << 8;
100  }
101  else
102  {
103  count = (opcode < 0xb) ? 8 : 1;
104  }
105  offset = 0;
106  break;
107  default:
108  opcode >>= 1;
109  count = code & 0x1f;
110  offset = 32;
111  break;
112  }
113  /* Handle strange cases for counts */
114  if (offset != 0)
115  {
116  isfillormix = ((opcode == 2) || (opcode == 7));
117  if (count == 0)
118  {
119  if (isfillormix)
120  count = CVAL(input) + 1;
121  else
122  count = CVAL(input) + offset;
123  }
124  else if (isfillormix)
125  {
126  count <<= 3;
127  }
128  }
129  /* Read preliminary data */
130  switch (opcode)
131  {
132  case 0: /* Fill */
133  if ((lastopcode == opcode) && !((x == width) && (prevline == NULL)))
134  insertmix = True;
135  break;
136  case 8: /* Bicolour */
137  colour1 = CVAL(input);
138  case 3: /* Colour */
139  colour2 = CVAL(input);
140  break;
141  case 6: /* SetMix/Mix */
142  case 7: /* SetMix/FillOrMix */
143  mix = CVAL(input);
144  opcode -= 5;
145  break;
146  case 9: /* FillOrMix_1 */
147  mask = 0x03;
148  opcode = 0x02;
149  fom_mask = 3;
150  break;
151  case 0x0a: /* FillOrMix_2 */
152  mask = 0x05;
153  opcode = 0x02;
154  fom_mask = 5;
155  break;
156  }
157  lastopcode = opcode;
158  mixmask = 0;
159  /* Output body */
160  while (count > 0)
161  {
162  if (x >= width)
163  {
164  if (height <= 0)
165  return False;
166  x = 0;
167  height--;
168  prevline = line;
169  line = output + height * width;
170  }
171  switch (opcode)
172  {
173  case 0: /* Fill */
174  if (insertmix)
175  {
176  if (prevline == NULL)
177  line[x] = mix;
178  else
179  line[x] = prevline[x] ^ mix;
180  insertmix = False;
181  count--;
182  x++;
183  }
184  if (prevline == NULL)
185  {
186  REPEAT(line[x] = 0)
187  }
188  else
189  {
190  REPEAT(line[x] = prevline[x])
191  }
192  break;
193  case 1: /* Mix */
194  if (prevline == NULL)
195  {
196  REPEAT(line[x] = mix)
197  }
198  else
199  {
200  REPEAT(line[x] = prevline[x] ^ mix)
201  }
202  break;
203  case 2: /* Fill or Mix */
204  if (prevline == NULL)
205  {
206  REPEAT
207  (
208  MASK_UPDATE();
209  if (mask & mixmask)
210  line[x] = mix;
211  else
212  line[x] = 0;
213  )
214  }
215  else
216  {
217  REPEAT
218  (
219  MASK_UPDATE();
220  if (mask & mixmask)
221  line[x] = prevline[x] ^ mix;
222  else
223  line[x] = prevline[x];
224  )
225  }
226  break;
227  case 3: /* Colour */
228  REPEAT(line[x] = colour2)
229  break;
230  case 4: /* Copy */
231  REPEAT(line[x] = CVAL(input))
232  break;
233  case 8: /* Bicolour */
234  REPEAT
235  (
236  if (bicolour)
237  {
238  line[x] = colour2;
239  bicolour = False;
240  }
241  else
242  {
243  line[x] = colour1;
244  bicolour = True; count++;
245  }
246  )
247  break;
248  case 0xd: /* White */
249  REPEAT(line[x] = 0xff)
250  break;
251  case 0xe: /* Black */
252  REPEAT(line[x] = 0)
253  break;
254  default:
255  unimpl("bitmap opcode 0x%x\n", opcode);
256  return False;
257  }
258  }
259  }
260  return True;
261 }
width
GLint GLint GLsizei width
Definition: gl.h:1546
return
return
Definition: dirsup.c:529
output
static UCHAR ULONG UCHAR ULONG UCHAR * output
Definition: bcrypt.c:29
MASK_UPDATE
#define MASK_UPDATE()
Definition: bitmap.c:55
count
GLuint GLuint GLsizei count
Definition: gl.h:1545
n
GLdouble n
Definition: glext.h:7729
x
GLint GLint GLint GLint GLint x
Definition: gl.h:1548
REPEAT
#define REPEAT(statement)
Definition: bitmap.c:42
mask
GLenum GLint GLuint mask
Definition: glext.h:6028
line
Definition: parser.c:48
bitmap
Definition: uimain.c:88
True
#define True
Definition: types.h:24
False
#define False
Definition: types.h:25
size
GLsizeiptr size
Definition: glext.h:5919
offset
GLintptr offset
Definition: glext.h:5920
uint8
unsigned char uint8
Definition: types.h:28
end
GLuint GLuint end
Definition: gl.h:1545
code
Definition: inflate.c:139
line
IN PCTCH line
Definition: pager.h:36
code
int code
Definition: main.c:75
height
GLint GLint GLsizei GLsizei height
Definition: gl.h:1546
input
GLenum GLenum GLenum input
Definition: glext.h:9031
mix
_In_ PATHOBJ _In_ CLIPOBJ _In_ BRUSHOBJ _In_ POINTL _In_ MIX mix
Definition: winddi.h:3591
CVAL
#define CVAL(p)
Definition: bitmap.c:29
NULL
#define NULL
Definition: types.h:112
unimpl
void unimpl(char *format,...)
Definition: uimain.c:801

Referenced by bitmap_decompress().

◆ bitmap_decompress2()

static RD_BOOL bitmap_decompress2 ( uint8 *  output,
int  width,
int  height,
uint8 *  input,
int  size 
)
static

Definition at line 265 of file bitmap.c.

266 {
267  uint8 *end = input + size;
268  uint16 *prevline = NULL, *line = NULL;
269  int opcode, count, offset, isfillormix, x = width;
270  int lastopcode = -1, insertmix = False, bicolour = False;
271  uint8 code;
272  uint16 colour1 = 0, colour2 = 0;
273  uint8 mixmask, mask = 0;
274  uint16 mix = 0xffff;
275  int fom_mask = 0;
276 
277  while (input < end)
278  {
279  fom_mask = 0;
280  code = CVAL(input);
281  opcode = code >> 4;
282  /* Handle different opcode forms */
283  switch (opcode)
284  {
285  case 0xc:
286  case 0xd:
287  case 0xe:
288  opcode -= 6;
289  count = code & 0xf;
290  offset = 16;
291  break;
292  case 0xf:
293  opcode = code & 0xf;
294  if (opcode < 9)
295  {
296  count = CVAL(input);
297  count |= CVAL(input) << 8;
298  }
299  else
300  {
301  count = (opcode < 0xb) ? 8 : 1;
302  }
303  offset = 0;
304  break;
305  default:
306  opcode >>= 1;
307  count = code & 0x1f;
308  offset = 32;
309  break;
310  }
311  /* Handle strange cases for counts */
312  if (offset != 0)
313  {
314  isfillormix = ((opcode == 2) || (opcode == 7));
315  if (count == 0)
316  {
317  if (isfillormix)
318  count = CVAL(input) + 1;
319  else
320  count = CVAL(input) + offset;
321  }
322  else if (isfillormix)
323  {
324  count <<= 3;
325  }
326  }
327  /* Read preliminary data */
328  switch (opcode)
329  {
330  case 0: /* Fill */
331  if ((lastopcode == opcode) && !((x == width) && (prevline == NULL)))
332  insertmix = True;
333  break;
334  case 8: /* Bicolour */
335  CVAL2(input, colour1);
336  case 3: /* Colour */
337  CVAL2(input, colour2);
338  break;
339  case 6: /* SetMix/Mix */
340  case 7: /* SetMix/FillOrMix */
341  CVAL2(input, mix);
342  opcode -= 5;
343  break;
344  case 9: /* FillOrMix_1 */
345  mask = 0x03;
346  opcode = 0x02;
347  fom_mask = 3;
348  break;
349  case 0x0a: /* FillOrMix_2 */
350  mask = 0x05;
351  opcode = 0x02;
352  fom_mask = 5;
353  break;
354  }
355  lastopcode = opcode;
356  mixmask = 0;
357  /* Output body */
358  while (count > 0)
359  {
360  if (x >= width)
361  {
362  if (height <= 0)
363  return False;
364  x = 0;
365  height--;
366  prevline = line;
367  line = ((uint16 *) output) + height * width;
368  }
369  switch (opcode)
370  {
371  case 0: /* Fill */
372  if (insertmix)
373  {
374  if (prevline == NULL)
375  line[x] = mix;
376  else
377  line[x] = prevline[x] ^ mix;
378  insertmix = False;
379  count--;
380  x++;
381  }
382  if (prevline == NULL)
383  {
384  REPEAT(line[x] = 0)
385  }
386  else
387  {
388  REPEAT(line[x] = prevline[x])
389  }
390  break;
391  case 1: /* Mix */
392  if (prevline == NULL)
393  {
394  REPEAT(line[x] = mix)
395  }
396  else
397  {
398  REPEAT(line[x] = prevline[x] ^ mix)
399  }
400  break;
401  case 2: /* Fill or Mix */
402  if (prevline == NULL)
403  {
404  REPEAT
405  (
406  MASK_UPDATE();
407  if (mask & mixmask)
408  line[x] = mix;
409  else
410  line[x] = 0;
411  )
412  }
413  else
414  {
415  REPEAT
416  (
417  MASK_UPDATE();
418  if (mask & mixmask)
419  line[x] = prevline[x] ^ mix;
420  else
421  line[x] = prevline[x];
422  )
423  }
424  break;
425  case 3: /* Colour */
426  REPEAT(line[x] = colour2)
427  break;
428  case 4: /* Copy */
429  REPEAT(CVAL2(input, line[x]))
430  break;
431  case 8: /* Bicolour */
432  REPEAT
433  (
434  if (bicolour)
435  {
436  line[x] = colour2;
437  bicolour = False;
438  }
439  else
440  {
441  line[x] = colour1;
442  bicolour = True;
443  count++;
444  }
445  )
446  break;
447  case 0xd: /* White */
448  REPEAT(line[x] = 0xffff)
449  break;
450  case 0xe: /* Black */
451  REPEAT(line[x] = 0)
452  break;
453  default:
454  unimpl("bitmap opcode 0x%x\n", opcode);
455  return False;
456  }
457  }
458  }
459  return True;
460 }
width
GLint GLint GLsizei width
Definition: gl.h:1546
return
return
Definition: dirsup.c:529
CVAL2
#define CVAL2(p, v)
Definition: bitmap.c:32
output
static UCHAR ULONG UCHAR ULONG UCHAR * output
Definition: bcrypt.c:29
MASK_UPDATE
#define MASK_UPDATE()
Definition: bitmap.c:55
count
GLuint GLuint GLsizei count
Definition: gl.h:1545
n
GLdouble n
Definition: glext.h:7729
x
GLint GLint GLint GLint GLint x
Definition: gl.h:1548
REPEAT
#define REPEAT(statement)
Definition: bitmap.c:42
mask
GLenum GLint GLuint mask
Definition: glext.h:6028
line
Definition: parser.c:48
bitmap
Definition: uimain.c:88
True
#define True
Definition: types.h:24
False
#define False
Definition: types.h:25
size
GLsizeiptr size
Definition: glext.h:5919
offset
GLintptr offset
Definition: glext.h:5920
uint8
unsigned char uint8
Definition: types.h:28
end
GLuint GLuint end
Definition: gl.h:1545
code
Definition: inflate.c:139
line
IN PCTCH line
Definition: pager.h:36
code
int code
Definition: main.c:75
height
GLint GLint GLsizei GLsizei height
Definition: gl.h:1546
input
GLenum GLenum GLenum input
Definition: glext.h:9031
uint16
unsigned short uint16
Definition: types.h:30
mix
_In_ PATHOBJ _In_ CLIPOBJ _In_ BRUSHOBJ _In_ POINTL _In_ MIX mix
Definition: winddi.h:3591
CVAL
#define CVAL(p)
Definition: bitmap.c:29
NULL
#define NULL
Definition: types.h:112
unimpl
void unimpl(char *format,...)
Definition: uimain.c:801

Referenced by bitmap_decompress().

◆ bitmap_decompress3()

static RD_BOOL bitmap_decompress3 ( uint8 *  output,
int  width,
int  height,
uint8 *  input,
int  size 
)
static

Definition at line 464 of file bitmap.c.

465 {
466  uint8 *end = input + size;
467  uint8 *prevline = NULL, *line = NULL;
468  int opcode, count, offset, isfillormix, x = width;
469  int lastopcode = -1, insertmix = False, bicolour = False;
470  uint8 code;
471  uint8 colour1[3] = {0, 0, 0}, colour2[3] = {0, 0, 0};
472  uint8 mixmask, mask = 0;
473  uint8 mix[3] = {0xff, 0xff, 0xff};
474  int fom_mask = 0;
475 
476  while (input < end)
477  {
478  fom_mask = 0;
479  code = CVAL(input);
480  opcode = code >> 4;
481  /* Handle different opcode forms */
482  switch (opcode)
483  {
484  case 0xc:
485  case 0xd:
486  case 0xe:
487  opcode -= 6;
488  count = code & 0xf;
489  offset = 16;
490  break;
491  case 0xf:
492  opcode = code & 0xf;
493  if (opcode < 9)
494  {
495  count = CVAL(input);
496  count |= CVAL(input) << 8;
497  }
498  else
499  {
500  count = (opcode <
501  0xb) ? 8 : 1;
502  }
503  offset = 0;
504  break;
505  default:
506  opcode >>= 1;
507  count = code & 0x1f;
508  offset = 32;
509  break;
510  }
511  /* Handle strange cases for counts */
512  if (offset != 0)
513  {
514  isfillormix = ((opcode == 2) || (opcode == 7));
515  if (count == 0)
516  {
517  if (isfillormix)
518  count = CVAL(input) + 1;
519  else
520  count = CVAL(input) + offset;
521  }
522  else if (isfillormix)
523  {
524  count <<= 3;
525  }
526  }
527  /* Read preliminary data */
528  switch (opcode)
529  {
530  case 0: /* Fill */
531  if ((lastopcode == opcode) && !((x == width) && (prevline == NULL)))
532  insertmix = True;
533  break;
534  case 8: /* Bicolour */
535  colour1[0] = CVAL(input);
536  colour1[1] = CVAL(input);
537  colour1[2] = CVAL(input);
538  case 3: /* Colour */
539  colour2[0] = CVAL(input);
540  colour2[1] = CVAL(input);
541  colour2[2] = CVAL(input);
542  break;
543  case 6: /* SetMix/Mix */
544  case 7: /* SetMix/FillOrMix */
545  mix[0] = CVAL(input);
546  mix[1] = CVAL(input);
547  mix[2] = CVAL(input);
548  opcode -= 5;
549  break;
550  case 9: /* FillOrMix_1 */
551  mask = 0x03;
552  opcode = 0x02;
553  fom_mask = 3;
554  break;
555  case 0x0a: /* FillOrMix_2 */
556  mask = 0x05;
557  opcode = 0x02;
558  fom_mask = 5;
559  break;
560  }
561  lastopcode = opcode;
562  mixmask = 0;
563  /* Output body */
564  while (count > 0)
565  {
566  if (x >= width)
567  {
568  if (height <= 0)
569  return False;
570  x = 0;
571  height--;
572  prevline = line;
573  line = output + height * (width * 3);
574  }
575  switch (opcode)
576  {
577  case 0: /* Fill */
578  if (insertmix)
579  {
580  if (prevline == NULL)
581  {
582  line[x * 3] = mix[0];
583  line[x * 3 + 1] = mix[1];
584  line[x * 3 + 2] = mix[2];
585  }
586  else
587  {
588  line[x * 3] =
589  prevline[x * 3] ^ mix[0];
590  line[x * 3 + 1] =
591  prevline[x * 3 + 1] ^ mix[1];
592  line[x * 3 + 2] =
593  prevline[x * 3 + 2] ^ mix[2];
594  }
595  insertmix = False;
596  count--;
597  x++;
598  }
599  if (prevline == NULL)
600  {
601  REPEAT
602  (
603  line[x * 3] = 0;
604  line[x * 3 + 1] = 0;
605  line[x * 3 + 2] = 0;
606  )
607  }
608  else
609  {
610  REPEAT
611  (
612  line[x * 3] = prevline[x * 3];
613  line[x * 3 + 1] = prevline[x * 3 + 1];
614  line[x * 3 + 2] = prevline[x * 3 + 2];
615  )
616  }
617  break;
618  case 1: /* Mix */
619  if (prevline == NULL)
620  {
621  REPEAT
622  (
623  line[x * 3] = mix[0];
624  line[x * 3 + 1] = mix[1];
625  line[x * 3 + 2] = mix[2];
626  )
627  }
628  else
629  {
630  REPEAT
631  (
632  line[x * 3] =
633  prevline[x * 3] ^ mix[0];
634  line[x * 3 + 1] =
635  prevline[x * 3 + 1] ^ mix[1];
636  line[x * 3 + 2] =
637  prevline[x * 3 + 2] ^ mix[2];
638  )
639  }
640  break;
641  case 2: /* Fill or Mix */
642  if (prevline == NULL)
643  {
644  REPEAT
645  (
646  MASK_UPDATE();
647  if (mask & mixmask)
648  {
649  line[x * 3] = mix[0];
650  line[x * 3 + 1] = mix[1];
651  line[x * 3 + 2] = mix[2];
652  }
653  else
654  {
655  line[x * 3] = 0;
656  line[x * 3 + 1] = 0;
657  line[x * 3 + 2] = 0;
658  }
659  )
660  }
661  else
662  {
663  REPEAT
664  (
665  MASK_UPDATE();
666  if (mask & mixmask)
667  {
668  line[x * 3] =
669  prevline[x * 3] ^ mix [0];
670  line[x * 3 + 1] =
671  prevline[x * 3 + 1] ^ mix [1];
672  line[x * 3 + 2] =
673  prevline[x * 3 + 2] ^ mix [2];
674  }
675  else
676  {
677  line[x * 3] =
678  prevline[x * 3];
679  line[x * 3 + 1] =
680  prevline[x * 3 + 1];
681  line[x * 3 + 2] =
682  prevline[x * 3 + 2];
683  }
684  )
685  }
686  break;
687  case 3: /* Colour */
688  REPEAT
689  (
690  line[x * 3] = colour2 [0];
691  line[x * 3 + 1] = colour2 [1];
692  line[x * 3 + 2] = colour2 [2];
693  )
694  break;
695  case 4: /* Copy */
696  REPEAT
697  (
698  line[x * 3] = CVAL(input);
699  line[x * 3 + 1] = CVAL(input);
700  line[x * 3 + 2] = CVAL(input);
701  )
702  break;
703  case 8: /* Bicolour */
704  REPEAT
705  (
706  if (bicolour)
707  {
708  line[x * 3] = colour2[0];
709  line[x * 3 + 1] = colour2[1];
710  line[x * 3 + 2] = colour2[2];
711  bicolour = False;
712  }
713  else
714  {
715  line[x * 3] = colour1[0];
716  line[x * 3 + 1] = colour1[1];
717  line[x * 3 + 2] = colour1[2];
718  bicolour = True;
719  count++;
720  }
721  )
722  break;
723  case 0xd: /* White */
724  REPEAT
725  (
726  line[x * 3] = 0xff;
727  line[x * 3 + 1] = 0xff;
728  line[x * 3 + 2] = 0xff;
729  )
730  break;
731  case 0xe: /* Black */
732  REPEAT
733  (
734  line[x * 3] = 0;
735  line[x * 3 + 1] = 0;
736  line[x * 3 + 2] = 0;
737  )
738  break;
739  default:
740  unimpl("bitmap opcode 0x%x\n", opcode);
741  return False;
742  }
743  }
744  }
745  return True;
746 }
width
GLint GLint GLsizei width
Definition: gl.h:1546
output
static UCHAR ULONG UCHAR ULONG UCHAR * output
Definition: bcrypt.c:29
MASK_UPDATE
#define MASK_UPDATE()
Definition: bitmap.c:55
count
GLuint GLuint GLsizei count
Definition: gl.h:1545
x
GLint GLint GLint GLint GLint x
Definition: gl.h:1548
REPEAT
#define REPEAT(statement)
Definition: bitmap.c:42
mask
GLenum GLint GLuint mask
Definition: glext.h:6028
line
Definition: parser.c:48
True
#define True
Definition: types.h:24
False
#define False
Definition: types.h:25
size
GLsizeiptr size
Definition: glext.h:5919
offset
GLintptr offset
Definition: glext.h:5920
uint8
unsigned char uint8
Definition: types.h:28
end
GLuint GLuint end
Definition: gl.h:1545
code
Definition: inflate.c:139
line
IN PCTCH line
Definition: pager.h:36
code
int code
Definition: main.c:75
height
GLint GLint GLsizei GLsizei height
Definition: gl.h:1546
input
GLenum GLenum GLenum input
Definition: glext.h:9031
mix
_In_ PATHOBJ _In_ CLIPOBJ _In_ BRUSHOBJ _In_ POINTL _In_ MIX mix
Definition: winddi.h:3591
CVAL
#define CVAL(p)
Definition: bitmap.c:29
NULL
#define NULL
Definition: types.h:112
unimpl
void unimpl(char *format,...)
Definition: uimain.c:801

Referenced by bitmap_decompress().

◆ bitmap_decompress4()

static RD_BOOL bitmap_decompress4 ( uint8 *  output,
int  width,
int  height,
uint8 *  input,
int  size 
)
static

Definition at line 856 of file bitmap.c.

857 {
858  int code;
859  int bytes_pro;
860  int total_pro;
861 
862  code = CVAL(input);
863  if (code != 0x10)
864  {
865  return False;
866  }
867  total_pro = 1;
868  bytes_pro = process_plane(input, width, height, output + 3, size - total_pro);
869  total_pro += bytes_pro;
870  input += bytes_pro;
871  bytes_pro = process_plane(input, width, height, output + 2, size - total_pro);
872  total_pro += bytes_pro;
873  input += bytes_pro;
874  bytes_pro = process_plane(input, width, height, output + 1, size - total_pro);
875  total_pro += bytes_pro;
876  input += bytes_pro;
877  bytes_pro = process_plane(input, width, height, output + 0, size - total_pro);
878  total_pro += bytes_pro;
879  return size == total_pro;
880 }
width
GLint GLint GLsizei width
Definition: gl.h:1546
output
static UCHAR ULONG UCHAR ULONG UCHAR * output
Definition: bcrypt.c:29
process_plane
static int process_plane(uint8 *in, int width, int height, uint8 *out, int size)
Definition: bitmap.c:750
False
#define False
Definition: types.h:25
size
GLsizeiptr size
Definition: glext.h:5919
code
Definition: inflate.c:139
code
int code
Definition: main.c:75
height
GLint GLint GLsizei GLsizei height
Definition: gl.h:1546
input
GLenum GLenum GLenum input
Definition: glext.h:9031
CVAL
#define CVAL(p)
Definition: bitmap.c:29

Referenced by bitmap_decompress().

◆ process_plane()

static int process_plane ( uint8 *  in,
int  width,
int  height,
uint8 *  out,
int  size 
)
static

Definition at line 750 of file bitmap.c.

751 {
752  int indexw;
753  int indexh;
754  int code;
755  int collen;
756  int replen;
757  int color;
758  int x;
759  int revcode;
760  uint8 * last_line;
761  uint8 * this_line;
762  uint8 * org_in;
763  uint8 * org_out;
764 
765  org_in = in;
766  org_out = out;
767  last_line = 0;
768  indexh = 0;
769  while (indexh < height)
770  {
771  out = (org_out + width * height * 4) - ((indexh + 1) * width * 4);
772  color = 0;
773  this_line = out;
774  indexw = 0;
775  if (last_line == 0)
776  {
777  while (indexw < width)
778  {
779  code = CVAL(in);
780  replen = code & 0xf;
781  collen = (code >> 4) & 0xf;
782  revcode = (replen << 4) | collen;
783  if ((revcode <= 47) && (revcode >= 16))
784  {
785  replen = revcode;
786  collen = 0;
787  }
788  while (collen > 0)
789  {
790  color = CVAL(in);
791  *out = color;
792  out += 4;
793  indexw++;
794  collen--;
795  }
796  while (replen > 0)
797  {
798  *out = color;
799  out += 4;
800  indexw++;
801  replen--;
802  }
803  }
804  }
805  else
806  {
807  while (indexw < width)
808  {
809  code = CVAL(in);
810  replen = code & 0xf;
811  collen = (code >> 4) & 0xf;
812  revcode = (replen << 4) | collen;
813  if ((revcode <= 47) && (revcode >= 16))
814  {
815  replen = revcode;
816  collen = 0;
817  }
818  while (collen > 0)
819  {
820  x = CVAL(in);
821  if (x & 1)
822  {
823  x = x >> 1;
824  x = x + 1;
825  color = -x;
826  }
827  else
828  {
829  x = x >> 1;
830  color = x;
831  }
832  x = last_line[indexw * 4] + color;
833  *out = x;
834  out += 4;
835  indexw++;
836  collen--;
837  }
838  while (replen > 0)
839  {
840  x = last_line[indexw * 4] + color;
841  *out = x;
842  out += 4;
843  indexw++;
844  replen--;
845  }
846  }
847  }
848  indexh++;
849  last_line = this_line;
850  }
851  return (int) (in - org_in);
852 }
width
GLint GLint GLsizei width
Definition: gl.h:1546
x
GLint GLint GLint GLint GLint x
Definition: gl.h:1548
color
GLuint color
Definition: glext.h:6243
out
static FILE * out
Definition: regtests2xml.c:44
uint8
unsigned char uint8
Definition: types.h:28
code
Definition: inflate.c:139
code
int code
Definition: main.c:75
height
GLint GLint GLsizei GLsizei height
Definition: gl.h:1546
in
GLuint in
Definition: glext.h:9616
CVAL
#define CVAL(p)
Definition: bitmap.c:29

Referenced by bitmap_decompress4().