Coverage Report

Created: 2026-02-26 06:50

next uncovered line (L), next uncovered region (R), next uncovered branch (B)
/src/FreeRDP/libfreerdp/codec/interleaved.c
Line
Count
Source
1
/**
2
 * FreeRDP: A Remote Desktop Protocol Implementation
3
 * Interleaved RLE Bitmap Codec
4
 *
5
 * Copyright 2014 Marc-Andre Moreau <marcandre.moreau@gmail.com>
6
 * Copyright 2015 Thincast Technologies GmbH
7
 * Copyright 2015 DI (FH) Martin Haimberger <martin.haimberger@thincast.com>
8
 * Copyright 2016 Armin Novak <armin.novak@thincast.com>
9
 * Copyright 2016 Thincast Technologies GmbH
10
 *
11
 * Licensed under the Apache License, Version 2.0 (the "License");
12
 * you may not use this file except in compliance with the License.
13
 * You may obtain a copy of the License at
14
 *
15
 *     http://www.apache.org/licenses/LICENSE-2.0
16
 *
17
 * Unless required by applicable law or agreed to in writing, software
18
 * distributed under the License is distributed on an "AS IS" BASIS,
19
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
20
 * See the License for the specific language governing permissions and
21
 * limitations under the License.
22
 */
23
24
#include <winpr/assert.h>
25
#include <winpr/cast.h>
26
#include <freerdp/config.h>
27
28
#include <freerdp/codec/interleaved.h>
29
#include <freerdp/log.h>
30
31
#define TAG FREERDP_TAG("codec")
32
33
#define UNROLL_BODY(_exp, _count)             \
34
0
  do                                        \
35
0
  {                                         \
36
0
    for (size_t x = 0; x < (_count); x++) \
37
0
    {                                     \
38
0
      do                                \
39
0
      {                                 \
40
0
        _exp                          \
41
0
      } while (FALSE);                  \
42
0
    }                                     \
43
0
  } while (FALSE)
44
45
#define UNROLL_MULTIPLE(_condition, _exp, _count) \
46
0
  do                                            \
47
0
  {                                             \
48
0
    while ((_condition) >= (_count))          \
49
0
    {                                         \
50
0
      UNROLL_BODY(_exp, _count);            \
51
0
      (_condition) -= (_count);             \
52
0
    }                                         \
53
0
  } while (FALSE)
54
55
#define UNROLL(_condition, _exp)               \
56
0
  do                                         \
57
0
  {                                          \
58
0
    UNROLL_MULTIPLE(_condition, _exp, 16); \
59
0
    UNROLL_MULTIPLE(_condition, _exp, 4);  \
60
0
    UNROLL_MULTIPLE(_condition, _exp, 1);  \
61
0
  } while (FALSE)
62
63
/*
64
   RLE Compressed Bitmap Stream (RLE_BITMAP_STREAM)
65
   http://msdn.microsoft.com/en-us/library/cc240895%28v=prot.10%29.aspx
66
   pseudo-code
67
   http://msdn.microsoft.com/en-us/library/dd240593%28v=prot.10%29.aspx
68
*/
69
70
0
#define REGULAR_BG_RUN 0x00
71
0
#define MEGA_MEGA_BG_RUN 0xF0
72
0
#define REGULAR_FG_RUN 0x01
73
0
#define MEGA_MEGA_FG_RUN 0xF1
74
0
#define LITE_SET_FG_FG_RUN 0x0C
75
0
#define MEGA_MEGA_SET_FG_RUN 0xF6
76
0
#define LITE_DITHERED_RUN 0x0E
77
0
#define MEGA_MEGA_DITHERED_RUN 0xF8
78
0
#define REGULAR_COLOR_RUN 0x03
79
0
#define MEGA_MEGA_COLOR_RUN 0xF3
80
0
#define REGULAR_FGBG_IMAGE 0x02
81
0
#define MEGA_MEGA_FGBG_IMAGE 0xF2
82
0
#define LITE_SET_FG_FGBG_IMAGE 0x0D
83
0
#define MEGA_MEGA_SET_FGBG_IMAGE 0xF7
84
0
#define REGULAR_COLOR_IMAGE 0x04
85
0
#define MEGA_MEGA_COLOR_IMAGE 0xF4
86
0
#define SPECIAL_FGBG_1 0xF9
87
0
#define SPECIAL_FGBG_2 0xFA
88
0
#define SPECIAL_WHITE 0xFD
89
0
#define SPECIAL_BLACK 0xFE
90
91
#define BLACK_PIXEL 0x000000
92
93
typedef UINT32 PIXEL;
94
95
static const BYTE g_MaskSpecialFgBg1 = 0x03;
96
static const BYTE g_MaskSpecialFgBg2 = 0x05;
97
98
static const BYTE g_MaskRegularRunLength = 0x1F;
99
static const BYTE g_MaskLiteRunLength = 0x0F;
100
101
#if defined(WITH_DEBUG_CODECS)
102
static const char* rle_code_str(UINT32 code)
103
{
104
  switch (code)
105
  {
106
    case REGULAR_BG_RUN:
107
      return "REGULAR_BG_RUN";
108
    case MEGA_MEGA_BG_RUN:
109
      return "MEGA_MEGA_BG_RUN";
110
    case REGULAR_FG_RUN:
111
      return "REGULAR_FG_RUN";
112
    case MEGA_MEGA_FG_RUN:
113
      return "MEGA_MEGA_FG_RUN";
114
    case LITE_SET_FG_FG_RUN:
115
      return "LITE_SET_FG_FG_RUN";
116
    case MEGA_MEGA_SET_FG_RUN:
117
      return "MEGA_MEGA_SET_FG_RUN";
118
    case LITE_DITHERED_RUN:
119
      return "LITE_DITHERED_RUN";
120
    case MEGA_MEGA_DITHERED_RUN:
121
      return "MEGA_MEGA_DITHERED_RUN";
122
    case REGULAR_COLOR_RUN:
123
      return "REGULAR_COLOR_RUN";
124
    case MEGA_MEGA_COLOR_RUN:
125
      return "MEGA_MEGA_COLOR_RUN";
126
    case REGULAR_FGBG_IMAGE:
127
      return "REGULAR_FGBG_IMAGE";
128
    case MEGA_MEGA_FGBG_IMAGE:
129
      return "MEGA_MEGA_FGBG_IMAGE";
130
    case LITE_SET_FG_FGBG_IMAGE:
131
      return "LITE_SET_FG_FGBG_IMAGE";
132
    case MEGA_MEGA_SET_FGBG_IMAGE:
133
      return "MEGA_MEGA_SET_FGBG_IMAGE";
134
    case REGULAR_COLOR_IMAGE:
135
      return "REGULAR_COLOR_IMAGE";
136
    case MEGA_MEGA_COLOR_IMAGE:
137
      return "MEGA_MEGA_COLOR_IMAGE";
138
    case SPECIAL_FGBG_1:
139
      return "SPECIAL_FGBG_1";
140
    case SPECIAL_FGBG_2:
141
      return "SPECIAL_FGBG_2";
142
    case SPECIAL_WHITE:
143
      return "SPECIAL_WHITE";
144
    case SPECIAL_BLACK:
145
      return "SPECIAL_BLACK";
146
    default:
147
      return "UNKNOWN";
148
  }
149
}
150
#endif
151
152
#define buffer_within_range(pbSrc, size, pbEnd) \
153
0
  buffer_within_range_((pbSrc), (size), (pbEnd), __func__, __FILE__, __LINE__)
154
static inline BOOL buffer_within_range_(const void* pbSrc, size_t size, const void* pbEnd,
155
                                        const char* fkt, const char* file, size_t line)
156
0
{
157
0
  WINPR_UNUSED(file);
158
0
  WINPR_ASSERT(pbSrc);
159
0
  WINPR_ASSERT(pbEnd);
160
161
0
  if ((const char*)pbSrc + size > (const char*)pbEnd)
162
0
  {
163
0
    WLog_ERR(TAG, "[%s:%" PRIuz "] pbSrc=%p + %" PRIuz " > pbEnd=%p", fkt, line, pbSrc, size,
164
0
             pbEnd);
165
0
    return FALSE;
166
0
  }
167
0
  return TRUE;
168
0
}
169
170
/**
171
 * Reads the supplied order header and extracts the compression
172
 * order code ID.
173
 */
174
static inline UINT32 ExtractCodeId(BYTE bOrderHdr)
175
0
{
176
0
  if ((bOrderHdr & 0xC0U) != 0xC0U)
177
0
  {
178
    /* REGULAR orders
179
     * (000x xxxx, 001x xxxx, 010x xxxx, 011x xxxx, 100x xxxx)
180
     */
181
0
    return bOrderHdr >> 5;
182
0
  }
183
0
  else if ((bOrderHdr & 0xF0U) == 0xF0U)
184
0
  {
185
    /* MEGA and SPECIAL orders (0xF*) */
186
0
    return bOrderHdr;
187
0
  }
188
0
  else
189
0
  {
190
    /* LITE orders
191
     * 1100 xxxx, 1101 xxxx, 1110 xxxx)
192
     */
193
0
    return bOrderHdr >> 4;
194
0
  }
195
0
}
196
197
/**
198
 * Extract the run length of a compression order.
199
 */
200
static UINT ExtractRunLengthRegularFgBg(const BYTE* pbOrderHdr, const BYTE* pbEnd, UINT32* advance)
201
0
{
202
0
  UINT runLength = 0;
203
204
0
  WINPR_ASSERT(pbOrderHdr);
205
0
  WINPR_ASSERT(pbEnd);
206
0
  WINPR_ASSERT(advance);
207
208
0
  runLength = (*pbOrderHdr) & g_MaskRegularRunLength;
209
0
  if (runLength == 0)
210
0
  {
211
0
    if (!buffer_within_range(pbOrderHdr, 2, pbEnd))
212
0
    {
213
0
      *advance = 0;
214
0
      return 0;
215
0
    }
216
0
    runLength = *(pbOrderHdr + 1) + 1;
217
0
    (*advance)++;
218
0
  }
219
0
  else
220
0
    runLength = runLength * 8;
221
222
0
  return runLength;
223
0
}
224
225
static UINT ExtractRunLengthLiteFgBg(const BYTE* pbOrderHdr, const BYTE* pbEnd, UINT32* advance)
226
0
{
227
0
  UINT runLength = 0;
228
229
0
  WINPR_ASSERT(pbOrderHdr);
230
0
  WINPR_ASSERT(pbEnd);
231
0
  WINPR_ASSERT(advance);
232
233
0
  runLength = *pbOrderHdr & g_MaskLiteRunLength;
234
0
  if (runLength == 0)
235
0
  {
236
0
    if (!buffer_within_range(pbOrderHdr, 2, pbEnd))
237
0
    {
238
0
      *advance = 0;
239
0
      return 0;
240
0
    }
241
0
    runLength = *(pbOrderHdr + 1) + 1;
242
0
    (*advance)++;
243
0
  }
244
0
  else
245
0
    runLength = runLength * 8;
246
247
0
  return runLength;
248
0
}
249
250
static UINT ExtractRunLengthRegular(const BYTE* pbOrderHdr, const BYTE* pbEnd, UINT32* advance)
251
0
{
252
0
  UINT runLength = 0;
253
254
0
  WINPR_ASSERT(pbOrderHdr);
255
0
  WINPR_ASSERT(pbEnd);
256
0
  WINPR_ASSERT(advance);
257
258
0
  runLength = *pbOrderHdr & g_MaskRegularRunLength;
259
0
  if (runLength == 0)
260
0
  {
261
0
    if (!buffer_within_range(pbOrderHdr, 2, pbEnd))
262
0
    {
263
0
      *advance = 0;
264
0
      return 0;
265
0
    }
266
0
    runLength = *(pbOrderHdr + 1) + 32;
267
0
    (*advance)++;
268
0
  }
269
270
0
  return runLength;
271
0
}
272
273
static UINT ExtractRunLengthMegaMega(const BYTE* pbOrderHdr, const BYTE* pbEnd, UINT32* advance)
274
0
{
275
0
  UINT runLength = 0;
276
277
0
  WINPR_ASSERT(pbOrderHdr);
278
0
  WINPR_ASSERT(pbEnd);
279
0
  WINPR_ASSERT(advance);
280
281
0
  if (!buffer_within_range(pbOrderHdr, 3, pbEnd))
282
0
  {
283
0
    *advance = 0;
284
0
    return 0;
285
0
  }
286
287
0
  runLength = ((UINT16)pbOrderHdr[1]) | ((((UINT16)pbOrderHdr[2]) << 8) & 0xFF00);
288
0
  (*advance) += 2;
289
290
0
  return runLength;
291
0
}
292
293
static UINT ExtractRunLengthLite(const BYTE* pbOrderHdr, const BYTE* pbEnd, UINT32* advance)
294
0
{
295
0
  UINT runLength = 0;
296
297
0
  WINPR_ASSERT(pbOrderHdr);
298
0
  WINPR_ASSERT(pbEnd);
299
0
  WINPR_ASSERT(advance);
300
301
0
  runLength = *pbOrderHdr & g_MaskLiteRunLength;
302
0
  if (runLength == 0)
303
0
  {
304
0
    if (!buffer_within_range(pbOrderHdr, 2, pbEnd))
305
0
    {
306
0
      *advance = 0;
307
0
      return 0;
308
0
    }
309
0
    runLength = *(pbOrderHdr + 1) + 16;
310
0
    (*advance)++;
311
0
  }
312
0
  return runLength;
313
0
}
314
315
static inline UINT32 ExtractRunLength(UINT32 code, const BYTE* pbOrderHdr, const BYTE* pbEnd,
316
                                      UINT32* advance)
317
0
{
318
0
  UINT32 runLength = 0;
319
0
  UINT32 ladvance = 1;
320
321
0
  WINPR_ASSERT(pbOrderHdr);
322
0
  WINPR_ASSERT(pbEnd);
323
0
  WINPR_ASSERT(advance);
324
325
#if defined(WITH_DEBUG_CODECS)
326
  WLog_VRB(TAG, "extracting %s", rle_code_str(code));
327
#endif
328
329
0
  *advance = 0;
330
0
  if (!buffer_within_range(pbOrderHdr, 0, pbEnd))
331
0
    return 0;
332
333
0
  switch (code)
334
0
  {
335
0
    case REGULAR_FGBG_IMAGE:
336
0
      runLength = ExtractRunLengthRegularFgBg(pbOrderHdr, pbEnd, &ladvance);
337
0
      break;
338
339
0
    case LITE_SET_FG_FGBG_IMAGE:
340
0
      runLength = ExtractRunLengthLiteFgBg(pbOrderHdr, pbEnd, &ladvance);
341
0
      break;
342
343
0
    case REGULAR_BG_RUN:
344
0
    case REGULAR_FG_RUN:
345
0
    case REGULAR_COLOR_RUN:
346
0
    case REGULAR_COLOR_IMAGE:
347
0
      runLength = ExtractRunLengthRegular(pbOrderHdr, pbEnd, &ladvance);
348
0
      break;
349
350
0
    case LITE_SET_FG_FG_RUN:
351
0
    case LITE_DITHERED_RUN:
352
0
      runLength = ExtractRunLengthLite(pbOrderHdr, pbEnd, &ladvance);
353
0
      break;
354
355
0
    case MEGA_MEGA_BG_RUN:
356
0
    case MEGA_MEGA_FG_RUN:
357
0
    case MEGA_MEGA_SET_FG_RUN:
358
0
    case MEGA_MEGA_DITHERED_RUN:
359
0
    case MEGA_MEGA_COLOR_RUN:
360
0
    case MEGA_MEGA_FGBG_IMAGE:
361
0
    case MEGA_MEGA_SET_FGBG_IMAGE:
362
0
    case MEGA_MEGA_COLOR_IMAGE:
363
0
      runLength = ExtractRunLengthMegaMega(pbOrderHdr, pbEnd, &ladvance);
364
0
      break;
365
366
0
    default:
367
0
      runLength = 0;
368
0
      ladvance = 0;
369
0
      break;
370
0
  }
371
372
0
  *advance = ladvance;
373
0
  return runLength;
374
0
}
375
376
#define ensure_capacity(start, end, size, base) \
377
0
  ensure_capacity_((start), (end), (size), (base), __func__, __FILE__, __LINE__)
378
static inline BOOL ensure_capacity_(const BYTE* start, const BYTE* end, size_t size, size_t base,
379
                                    const char* fkt, WINPR_ATTR_UNUSED const char* file,
380
                                    size_t line)
381
0
{
382
0
  const size_t available = (uintptr_t)end - (uintptr_t)start;
383
0
  const BOOL rc = available >= size * base;
384
0
  const BOOL res = rc && (start <= end);
385
386
0
  if (!res)
387
0
    WLog_ERR(TAG,
388
0
             "[%s:%" PRIuz "] failed: start=%p <= end=%p, available=%" PRIuz " >= size=%" PRIuz
389
0
             " * base=%" PRIuz,
390
0
             fkt, line, WINPR_CXX_COMPAT_CAST(const void*, start),
391
0
             WINPR_CXX_COMPAT_CAST(const void*, end), available, size, base);
392
0
  return res;
393
0
}
394
395
static inline void write_pixel_8(BYTE* _buf, BYTE _pix)
396
0
{
397
0
  WINPR_ASSERT(_buf);
398
0
  *_buf = _pix;
399
0
}
400
401
static inline void write_pixel_24(BYTE* _buf, UINT32 _pix)
402
0
{
403
0
  WINPR_ASSERT(_buf);
404
0
  (_buf)[0] = (BYTE)(_pix);
405
0
  (_buf)[1] = (BYTE)((_pix) >> 8);
406
0
  (_buf)[2] = (BYTE)((_pix) >> 16);
407
0
}
408
409
static inline void write_pixel_16(BYTE* _buf, UINT16 _pix)
410
0
{
411
0
  WINPR_ASSERT(_buf);
412
0
  _buf[0] = _pix & 0xFF;
413
0
  _buf[1] = (_pix >> 8) & 0xFF;
414
0
}
415
416
#undef DESTWRITEPIXEL
417
#undef DESTREADPIXEL
418
#undef SRCREADPIXEL
419
#undef WRITEFGBGIMAGE
420
#undef WRITEFIRSTLINEFGBGIMAGE
421
#undef RLEDECOMPRESS
422
#undef RLEEXTRA
423
#undef WHITE_PIXEL
424
#undef PIXEL_SIZE
425
#undef PIXEL
426
#define PIXEL_SIZE 1
427
0
#define PIXEL BYTE
428
0
#define WHITE_PIXEL 0xFF
429
#define DESTWRITEPIXEL(_buf, _pix) \
430
0
  do                             \
431
0
  {                              \
432
0
    write_pixel_8(_buf, _pix); \
433
0
    (_buf) += 1;               \
434
0
  } while (0)
435
0
#define DESTREADPIXEL(_pix, _buf) _pix = (_buf)[0]
436
#define SRCREADPIXEL(_pix, _buf) \
437
0
  do                           \
438
0
  {                            \
439
0
    (_pix) = (_buf)[0];      \
440
0
    (_buf) += 1;             \
441
0
  } while (0)
442
443
0
#define WRITEFGBGIMAGE WriteFgBgImage8to8
444
0
#define WRITEFIRSTLINEFGBGIMAGE WriteFirstLineFgBgImage8to8
445
#define RLEDECOMPRESS RleDecompress8to8
446
#define RLEEXTRA
447
#undef ENSURE_CAPACITY
448
0
#define ENSURE_CAPACITY(_start, _end, _size) ensure_capacity(_start, _end, _size, 1)
449
#include "include/bitmap.h"
450
451
#undef DESTWRITEPIXEL
452
#undef DESTREADPIXEL
453
#undef SRCREADPIXEL
454
#undef WRITEFGBGIMAGE
455
#undef WRITEFIRSTLINEFGBGIMAGE
456
#undef RLEDECOMPRESS
457
#undef RLEEXTRA
458
#undef WHITE_PIXEL
459
#undef PIXEL_SIZE
460
#undef PIXEL
461
#define PIXEL_SIZE 2
462
0
#define PIXEL UINT16
463
0
#define WHITE_PIXEL 0xFFFF
464
#define DESTWRITEPIXEL(_buf, _pix)  \
465
0
  do                              \
466
0
  {                               \
467
0
    write_pixel_16(_buf, _pix); \
468
0
    (_buf) += 2;                \
469
0
  } while (0)
470
0
#define DESTREADPIXEL(_pix, _buf) _pix = ((UINT16*)(_buf))[0]
471
#define SRCREADPIXEL(_pix, _buf)                                                            \
472
0
  do                                                                                      \
473
0
  {                                                                                       \
474
0
    (_pix) = WINPR_ASSERTING_INT_CAST(UINT16, (_buf)[0] | (((_buf)[1] << 8) & 0xFF00)); \
475
0
    (_buf) += 2;                                                                        \
476
0
  } while (0)
477
0
#define WRITEFGBGIMAGE WriteFgBgImage16to16
478
0
#define WRITEFIRSTLINEFGBGIMAGE WriteFirstLineFgBgImage16to16
479
#define RLEDECOMPRESS RleDecompress16to16
480
#define RLEEXTRA
481
#undef ENSURE_CAPACITY
482
0
#define ENSURE_CAPACITY(_start, _end, _size) ensure_capacity(_start, _end, _size, 2)
483
#include "include/bitmap.h"
484
485
#undef DESTWRITEPIXEL
486
#undef DESTREADPIXEL
487
#undef SRCREADPIXEL
488
#undef WRITEFGBGIMAGE
489
#undef WRITEFIRSTLINEFGBGIMAGE
490
#undef RLEDECOMPRESS
491
#undef RLEEXTRA
492
#undef WHITE_PIXEL
493
#undef PIXEL_SIZE
494
#undef PIXEL
495
#define PIXEL_SIZE 3
496
0
#define PIXEL UINT32
497
0
#define WHITE_PIXEL 0xffffff
498
#define DESTWRITEPIXEL(_buf, _pix)  \
499
0
  do                              \
500
0
  {                               \
501
0
    write_pixel_24(_buf, _pix); \
502
0
    (_buf) += 3;                \
503
0
  } while (0)
504
#define DESTREADPIXEL(_pix, _buf) \
505
0
  _pix = (_buf)[0] | (((_buf)[1] << 8) & 0xFF00) | (((_buf)[2] << 16) & 0xFF0000)
506
#define SRCREADPIXEL(_pix, _buf)                                                           \
507
0
  do                                                                                     \
508
0
  {                                                                                      \
509
0
    (_pix) = (_buf)[0] | (((_buf)[1] << 8) & 0xFF00) | (((_buf)[2] << 16) & 0xFF0000); \
510
0
    (_buf) += 3;                                                                       \
511
0
  } while (0)
512
513
0
#define WRITEFGBGIMAGE WriteFgBgImage24to24
514
0
#define WRITEFIRSTLINEFGBGIMAGE WriteFirstLineFgBgImage24to24
515
#define RLEDECOMPRESS RleDecompress24to24
516
#define RLEEXTRA
517
#undef ENSURE_CAPACITY
518
0
#define ENSURE_CAPACITY(_start, _end, _size) ensure_capacity(_start, _end, _size, 3)
519
#include "include/bitmap.h"
520
521
struct S_BITMAP_INTERLEAVED_CONTEXT
522
{
523
  BOOL Compressor;
524
525
  UINT32 TempSize;
526
  BYTE* TempBuffer;
527
528
  wStream* bts;
529
};
530
531
BOOL interleaved_decompress(BITMAP_INTERLEAVED_CONTEXT* WINPR_RESTRICT interleaved,
532
                            const BYTE* WINPR_RESTRICT pSrcData, UINT32 SrcSize, UINT32 nSrcWidth,
533
                            UINT32 nSrcHeight, UINT32 bpp, BYTE* WINPR_RESTRICT pDstData,
534
                            UINT32 DstFormat, UINT32 nDstStep, UINT32 nXDst, UINT32 nYDst,
535
                            UINT32 nDstWidth, UINT32 nDstHeight,
536
                            const gdiPalette* WINPR_RESTRICT palette)
537
0
{
538
0
  UINT32 scanline = 0;
539
0
  UINT32 SrcFormat = 0;
540
0
  UINT32 BufferSize = 0;
541
542
0
  if (!interleaved || !pSrcData || !pDstData)
543
0
  {
544
0
    WLog_ERR(TAG, "invalid arguments: interleaved=%p, pSrcData=%p, pDstData=%p",
545
0
             WINPR_CXX_COMPAT_CAST(const void*, interleaved),
546
0
             WINPR_CXX_COMPAT_CAST(const void*, pSrcData),
547
0
             WINPR_CXX_COMPAT_CAST(const void*, pDstData));
548
0
    return FALSE;
549
0
  }
550
551
0
  switch (bpp)
552
0
  {
553
0
    case 24:
554
0
      scanline = nSrcWidth * 3;
555
0
      SrcFormat = PIXEL_FORMAT_BGR24;
556
0
      break;
557
558
0
    case 16:
559
0
      scanline = nSrcWidth * 2;
560
0
      SrcFormat = PIXEL_FORMAT_RGB16;
561
0
      break;
562
563
0
    case 15:
564
0
      scanline = nSrcWidth * 2;
565
0
      SrcFormat = PIXEL_FORMAT_RGB15;
566
0
      break;
567
568
0
    case 8:
569
0
      scanline = nSrcWidth;
570
0
      SrcFormat = PIXEL_FORMAT_RGB8;
571
0
      break;
572
573
0
    default:
574
0
      WLog_ERR(TAG, "Invalid color depth %" PRIu32 "", bpp);
575
0
      return FALSE;
576
0
  }
577
578
0
  BufferSize = scanline * nSrcHeight;
579
580
0
  if (BufferSize > interleaved->TempSize)
581
0
  {
582
0
    interleaved->TempBuffer =
583
0
        winpr_aligned_recalloc(interleaved->TempBuffer, BufferSize, sizeof(BYTE), 16);
584
0
    interleaved->TempSize = BufferSize;
585
0
  }
586
587
0
  if (!interleaved->TempBuffer)
588
0
  {
589
0
    WLog_ERR(TAG, "interleaved->TempBuffer=NULL");
590
0
    return FALSE;
591
0
  }
592
593
0
  switch (bpp)
594
0
  {
595
0
    case 24:
596
0
      if (!RleDecompress24to24(pSrcData, SrcSize, interleaved->TempBuffer, scanline,
597
0
                               nSrcWidth, nSrcHeight))
598
0
      {
599
0
        WLog_ERR(TAG, "RleDecompress24to24 failed");
600
0
        return FALSE;
601
0
      }
602
603
0
      break;
604
605
0
    case 16:
606
0
    case 15:
607
0
      if (!RleDecompress16to16(pSrcData, SrcSize, interleaved->TempBuffer, scanline,
608
0
                               nSrcWidth, nSrcHeight))
609
0
      {
610
0
        WLog_ERR(TAG, "RleDecompress16to16 failed");
611
0
        return FALSE;
612
0
      }
613
614
0
      break;
615
616
0
    case 8:
617
0
      if (!RleDecompress8to8(pSrcData, SrcSize, interleaved->TempBuffer, scanline, nSrcWidth,
618
0
                             nSrcHeight))
619
0
      {
620
0
        WLog_ERR(TAG, "RleDecompress8to8 failed");
621
0
        return FALSE;
622
0
      }
623
624
0
      break;
625
626
0
    default:
627
0
      WLog_ERR(TAG, "Invalid color depth %" PRIu32 "", bpp);
628
0
      return FALSE;
629
0
  }
630
631
0
  if (!freerdp_image_copy_no_overlap(pDstData, DstFormat, nDstStep, nXDst, nYDst, nDstWidth,
632
0
                                     nDstHeight, interleaved->TempBuffer, SrcFormat, scanline, 0,
633
0
                                     0, palette, FREERDP_FLIP_VERTICAL | FREERDP_KEEP_DST_ALPHA))
634
0
  {
635
0
    WLog_ERR(TAG, "freerdp_image_copy failed");
636
0
    return FALSE;
637
0
  }
638
0
  return TRUE;
639
0
}
640
641
BOOL interleaved_compress(BITMAP_INTERLEAVED_CONTEXT* WINPR_RESTRICT interleaved,
642
                          BYTE* WINPR_RESTRICT pDstData, UINT32* WINPR_RESTRICT pDstSize,
643
                          UINT32 nWidth, UINT32 nHeight, const BYTE* WINPR_RESTRICT pSrcData,
644
                          UINT32 SrcFormat, UINT32 nSrcStep, UINT32 nXSrc, UINT32 nYSrc,
645
                          const gdiPalette* WINPR_RESTRICT palette, UINT32 bpp)
646
0
{
647
0
  BOOL status = 0;
648
0
  wStream* s = NULL;
649
0
  UINT32 DstFormat = 0;
650
0
  const UINT32 maxSize = 64 * 64 * 4;
651
652
0
  if (!interleaved || !pDstData || !pSrcData)
653
0
    return FALSE;
654
655
0
  if ((nWidth == 0) || (nHeight == 0))
656
0
    return FALSE;
657
658
0
  if (nWidth % 4)
659
0
  {
660
0
    WLog_ERR(TAG, "interleaved_compress: width is not a multiple of 4");
661
0
    return FALSE;
662
0
  }
663
664
0
  if ((nWidth > 64) || (nHeight > 64))
665
0
  {
666
0
    WLog_ERR(TAG,
667
0
             "interleaved_compress: width (%" PRIu32 ") or height (%" PRIu32
668
0
             ") is greater than 64",
669
0
             nWidth, nHeight);
670
0
    return FALSE;
671
0
  }
672
673
0
  switch (bpp)
674
0
  {
675
0
    case 24:
676
0
      DstFormat = PIXEL_FORMAT_BGRX32;
677
0
      break;
678
679
0
    case 16:
680
0
      DstFormat = PIXEL_FORMAT_RGB16;
681
0
      break;
682
683
0
    case 15:
684
0
      DstFormat = PIXEL_FORMAT_RGB15;
685
0
      break;
686
687
0
    default:
688
0
      return FALSE;
689
0
  }
690
691
0
  if (!freerdp_image_copy_no_overlap(interleaved->TempBuffer, DstFormat, 0, 0, 0, nWidth, nHeight,
692
0
                                     pSrcData, SrcFormat, nSrcStep, nXSrc, nYSrc, palette,
693
0
                                     FREERDP_KEEP_DST_ALPHA))
694
0
    return FALSE;
695
696
0
  s = Stream_New(pDstData, *pDstSize);
697
698
0
  if (!s)
699
0
    return FALSE;
700
701
0
  Stream_SetPosition(interleaved->bts, 0);
702
703
0
  if (freerdp_bitmap_compress(interleaved->TempBuffer, nWidth, nHeight, s, bpp, maxSize,
704
0
                              nHeight - 1, interleaved->bts, 0) < 0)
705
0
    status = FALSE;
706
0
  else
707
0
    status = TRUE;
708
709
0
  Stream_SealLength(s);
710
0
  *pDstSize = (UINT32)Stream_Length(s);
711
0
  Stream_Free(s, FALSE);
712
0
  return status;
713
0
}
714
715
BOOL bitmap_interleaved_context_reset(BITMAP_INTERLEAVED_CONTEXT* WINPR_RESTRICT interleaved)
716
0
{
717
0
  if (!interleaved)
718
0
    return FALSE;
719
720
0
  return TRUE;
721
0
}
722
723
BITMAP_INTERLEAVED_CONTEXT* bitmap_interleaved_context_new(WINPR_ATTR_UNUSED BOOL Compressor)
724
0
{
725
0
  BITMAP_INTERLEAVED_CONTEXT* interleaved = NULL;
726
0
  interleaved = (BITMAP_INTERLEAVED_CONTEXT*)winpr_aligned_recalloc(
727
0
      NULL, 1, sizeof(BITMAP_INTERLEAVED_CONTEXT), 32);
728
729
0
  if (interleaved)
730
0
  {
731
0
    interleaved->TempSize = 64 * 64 * 4;
732
0
    interleaved->TempBuffer = winpr_aligned_calloc(interleaved->TempSize, sizeof(BYTE), 16);
733
734
0
    if (!interleaved->TempBuffer)
735
0
      goto fail;
736
737
0
    interleaved->bts = Stream_New(NULL, interleaved->TempSize);
738
739
0
    if (!interleaved->bts)
740
0
      goto fail;
741
0
  }
742
743
0
  return interleaved;
744
745
0
fail:
746
0
  WINPR_PRAGMA_DIAG_PUSH
747
0
  WINPR_PRAGMA_DIAG_IGNORED_MISMATCHED_DEALLOC
748
0
  bitmap_interleaved_context_free(interleaved);
749
0
  WINPR_PRAGMA_DIAG_POP
750
0
  return NULL;
751
0
}
752
753
void bitmap_interleaved_context_free(BITMAP_INTERLEAVED_CONTEXT* WINPR_RESTRICT interleaved)
754
0
{
755
0
  if (!interleaved)
756
0
    return;
757
758
0
  winpr_aligned_free(interleaved->TempBuffer);
759
0
  Stream_Free(interleaved->bts, TRUE);
760
0
  winpr_aligned_free(interleaved);
761
0
}