Revision e76709d8

View differences:

libswscale/Makefile
5 5

  
6 6
HEADERS = swscale.h
7 7

  
8
OBJS = rgb2rgb.o swscale.o swscale_avoption.o
8
OBJS = rgb2rgb.o swscale.o swscale_avoption.o yuv2rgb2.o
9 9

  
10 10
OBJS-$(ARCH_BFIN)          +=  internal_bfin.o swscale_bfin.o yuv2rgb_bfin.o
11
OBJS-$(CONFIG_GPL)         +=  yuv2rgb.o
12 11
OBJS-$(CONFIG_MLIB)        +=  yuv2rgb_mlib.o
13 12
OBJS-$(HAVE_ALTIVEC)       +=  yuv2rgb_altivec.o
14 13
OBJS-$(HAVE_VIS)           +=  yuv2rgb_vis.o
libswscale/swscale.c
2331 2331
        {
2332 2332
            c->swScale= PlanarToNV12Wrapper;
2333 2333
        }
2334
#if CONFIG_GPL
2335 2334
        /* yuv2bgr */
2336 2335
        if ((srcFormat==PIX_FMT_YUV420P || srcFormat==PIX_FMT_YUV422P) && (isBGR(dstFormat) || isRGB(dstFormat))
2337 2336
            && !(flags & SWS_ACCURATE_RND) && !(dstH&1))
2338 2337
        {
2339 2338
            c->swScale= sws_yuv2rgb_get_func_ptr(c);
2340 2339
        }
2341
#endif
2342 2340

  
2343 2341
        if (srcFormat==PIX_FMT_YUV410P && dstFormat==PIX_FMT_YUV420P && !(flags & SWS_BITEXACT))
2344 2342
        {
libswscale/swscale.h
31 31

  
32 32
#define LIBSWSCALE_VERSION_MAJOR 0
33 33
#define LIBSWSCALE_VERSION_MINOR 7
34
#define LIBSWSCALE_VERSION_MICRO 0
34
#define LIBSWSCALE_VERSION_MICRO 1
35 35

  
36 36
#define LIBSWSCALE_VERSION_INT  AV_VERSION_INT(LIBSWSCALE_VERSION_MAJOR, \
37 37
                                               LIBSWSCALE_VERSION_MINOR, \
libswscale/yuv2rgb2.c
1
/*
2
 * software YUV to RGB converter
3
 *
4
 * Copyright (C) 2009 Konstantin Shishkov
5
 *
6
 * MMX/MMX2 template stuff (needed for fast movntq support),
7
 * 1,4,8bpp support and context / deglobalize stuff
8
 * by Michael Niedermayer (michaelni@gmx.at)
9
 *
10
 * This file is part of FFmpeg.
11
 *
12
 * FFmpeg is free software; you can redistribute it and/or
13
 * modify it under the terms of the GNU Lesser General Public
14
 * License as published by the Free Software Foundation; either
15
 * version 2.1 of the License, or (at your option) any later version.
16
 *
17
 * FFmpeg is distributed in the hope that it will be useful,
18
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
20
 * Lesser General Public License for more details.
21
 *
22
 * You should have received a copy of the GNU Lesser General Public
23
 * License along with FFmpeg; if not, write to the Free Software
24
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
25
 */
26

  
27
#include <stdio.h>
28
#include <stdlib.h>
29
#include <inttypes.h>
30
#include <assert.h>
31

  
32
#include "config.h"
33
#include "rgb2rgb.h"
34
#include "swscale.h"
35
#include "swscale_internal.h"
36

  
37
#define DITHER1XBPP // only for MMX
38

  
39
extern const uint8_t dither_8x8_32[8][8];
40
extern const uint8_t dither_8x8_73[8][8];
41
extern const uint8_t dither_8x8_220[8][8];
42

  
43
#if HAVE_MMX && CONFIG_GPL
44

  
45
/* hope these constant values are cache line aligned */
46
DECLARE_ASM_CONST(8, uint64_t, mmx_00ffw)   = 0x00ff00ff00ff00ffULL;
47
DECLARE_ASM_CONST(8, uint64_t, mmx_redmask) = 0xf8f8f8f8f8f8f8f8ULL;
48
DECLARE_ASM_CONST(8, uint64_t, mmx_grnmask) = 0xfcfcfcfcfcfcfcfcULL;
49

  
50
//MMX versions
51
#undef RENAME
52
#undef HAVE_MMX2
53
#undef HAVE_AMD3DNOW
54
#define HAVE_MMX2 0
55
#define HAVE_AMD3DNOW 0
56
#define RENAME(a) a ## _MMX
57
#include "yuv2rgb_template.c"
58

  
59
//MMX2 versions
60
#undef RENAME
61
#undef HAVE_MMX2
62
#define HAVE_MMX2 1
63
#define RENAME(a) a ## _MMX2
64
#include "yuv2rgb_template.c"
65

  
66
#endif /* HAVE_MMX && CONFIG_GPL */
67

  
68
const int32_t ff_yuv2rgb_coeffs[8][4] = {
69
    {117504, 138453, 13954, 34903}, /* no sequence_display_extension */
70
    {117504, 138453, 13954, 34903}, /* ITU-R Rec. 709 (1990) */
71
    {104597, 132201, 25675, 53279}, /* unspecified */
72
    {104597, 132201, 25675, 53279}, /* reserved */
73
    {104448, 132798, 24759, 53109}, /* FCC */
74
    {104597, 132201, 25675, 53279}, /* ITU-R Rec. 624-4 System B, G */
75
    {104597, 132201, 25675, 53279}, /* SMPTE 170M */
76
    {117579, 136230, 16907, 35559}  /* SMPTE 240M (1987) */
77
};
78

  
79
#define LOADCHROMA(i)                               \
80
    U = pu[i];                                      \
81
    V = pv[i];                                      \
82
    r = (void *)c->table_rV[V];                     \
83
    g = (void *)(c->table_gU[U] + c->table_gV[V]);  \
84
    b = (void *)c->table_bU[U];
85

  
86
#define PUTRGB(dst,src,i,o)          \
87
    Y = src[2*i+o];                  \
88
    dst[2*i  ] = r[Y] + g[Y] + b[Y]; \
89
    Y = src[2*i+1-o];                \
90
    dst[2*i+1] = r[Y] + g[Y] + b[Y];
91

  
92
#define PUTRGB24(dst,src,i)                                  \
93
    Y = src[2*i];                                            \
94
    dst[6*i+0] = r[Y]; dst[6*i+1] = g[Y]; dst[6*i+2] = b[Y]; \
95
    Y = src[2*i+1];                                          \
96
    dst[6*i+3] = r[Y]; dst[6*i+4] = g[Y]; dst[6*i+5] = b[Y];
97

  
98
#define PUTBGR24(dst,src,i)                                  \
99
    Y = src[2*i];                                            \
100
    dst[6*i+0] = b[Y]; dst[6*i+1] = g[Y]; dst[6*i+2] = r[Y]; \
101
    Y = src[2*i+1];                                          \
102
    dst[6*i+3] = b[Y]; dst[6*i+4] = g[Y]; dst[6*i+5] = r[Y];
103

  
104
#define YUV2RGBFUNC(func_name, dst_type) \
105
static int func_name(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY, \
106
                     int srcSliceH, uint8_t* dst[], int dstStride[]){\
107
    int y;\
108
\
109
    if (c->srcFormat == PIX_FMT_YUV422P) {\
110
        srcStride[1] *= 2;\
111
        srcStride[2] *= 2;\
112
    }\
113
    for (y=0; y<srcSliceH; y+=2) {\
114
        dst_type *dst_1 = (dst_type*)(dst[0] + (y+srcSliceY  )*dstStride[0]);\
115
        dst_type *dst_2 = (dst_type*)(dst[0] + (y+srcSliceY+1)*dstStride[0]);\
116
        dst_type av_unused *r, *b;\
117
        dst_type *g;\
118
        uint8_t *py_1 = src[0] + y*srcStride[0];\
119
        uint8_t *py_2 = py_1 + srcStride[0];\
120
        uint8_t *pu = src[1] + (y>>1)*srcStride[1];\
121
        uint8_t *pv = src[2] + (y>>1)*srcStride[2];\
122
        unsigned int h_size = c->dstW>>3;\
123
        while (h_size--) {\
124
            int av_unused U, V;\
125
            int Y;\
126

  
127
#define ENDYUV2RGBLINE(dst_delta)\
128
            pu += 4;\
129
            pv += 4;\
130
            py_1 += 8;\
131
            py_2 += 8;\
132
            dst_1 += dst_delta;\
133
            dst_2 += dst_delta;\
134
        }\
135
        if (c->dstW & 4) {\
136
            int av_unused Y, U, V;\
137

  
138
#define ENDYUV2RGBFUNC()\
139
        }\
140
    }\
141
    return srcSliceH;\
142
}
143

  
144
#define CLOSEYUV2RGBFUNC(dst_delta)\
145
    ENDYUV2RGBLINE(dst_delta)\
146
    ENDYUV2RGBFUNC()
147

  
148
YUV2RGBFUNC(yuv2rgb_c_32, uint32_t)
149
    LOADCHROMA(0);
150
    PUTRGB(dst_1,py_1,0,0);
151
    PUTRGB(dst_2,py_2,0,1);
152

  
153
    LOADCHROMA(1);
154
    PUTRGB(dst_2,py_2,1,1);
155
    PUTRGB(dst_1,py_1,1,0);
156
    LOADCHROMA(1);
157
    PUTRGB(dst_2,py_2,1,1);
158
    PUTRGB(dst_1,py_1,1,0);
159

  
160
    LOADCHROMA(2);
161
    PUTRGB(dst_1,py_1,2,0);
162
    PUTRGB(dst_2,py_2,2,1);
163

  
164
    LOADCHROMA(3);
165
    PUTRGB(dst_2,py_2,3,1);
166
    PUTRGB(dst_1,py_1,3,0);
167
ENDYUV2RGBLINE(8)
168
    LOADCHROMA(0);
169
    PUTRGB(dst_1,py_1,0,0);
170
    PUTRGB(dst_2,py_2,0,1);
171

  
172
    LOADCHROMA(1);
173
    PUTRGB(dst_2,py_2,1,1);
174
    PUTRGB(dst_1,py_1,1,0);
175
ENDYUV2RGBFUNC()
176

  
177
YUV2RGBFUNC(yuv2rgb_c_24_rgb, uint8_t)
178
    LOADCHROMA(0);
179
    PUTRGB24(dst_1,py_1,0);
180
    PUTRGB24(dst_2,py_2,0);
181

  
182
    LOADCHROMA(1);
183
    PUTRGB24(dst_2,py_2,1);
184
    PUTRGB24(dst_1,py_1,1);
185

  
186
    LOADCHROMA(2);
187
    PUTRGB24(dst_1,py_1,2);
188
    PUTRGB24(dst_2,py_2,2);
189

  
190
    LOADCHROMA(3);
191
    PUTRGB24(dst_2,py_2,3);
192
    PUTRGB24(dst_1,py_1,3);
193
ENDYUV2RGBLINE(24)
194
    LOADCHROMA(0);
195
    PUTRGB24(dst_1,py_1,0);
196
    PUTRGB24(dst_2,py_2,0);
197

  
198
    LOADCHROMA(1);
199
    PUTRGB24(dst_2,py_2,1);
200
    PUTRGB24(dst_1,py_1,1);
201
ENDYUV2RGBFUNC()
202

  
203
// only trivial mods from yuv2rgb_c_24_rgb
204
YUV2RGBFUNC(yuv2rgb_c_24_bgr, uint8_t)
205
    LOADCHROMA(0);
206
    PUTBGR24(dst_1,py_1,0);
207
    PUTBGR24(dst_2,py_2,0);
208

  
209
    LOADCHROMA(1);
210
    PUTBGR24(dst_2,py_2,1);
211
    PUTBGR24(dst_1,py_1,1);
212

  
213
    LOADCHROMA(2);
214
    PUTBGR24(dst_1,py_1,2);
215
    PUTBGR24(dst_2,py_2,2);
216

  
217
    LOADCHROMA(3);
218
    PUTBGR24(dst_2,py_2,3);
219
    PUTBGR24(dst_1,py_1,3);
220
ENDYUV2RGBLINE(24)
221
    LOADCHROMA(0);
222
    PUTBGR24(dst_1,py_1,0);
223
    PUTBGR24(dst_2,py_2,0);
224

  
225
    LOADCHROMA(1);
226
    PUTBGR24(dst_2,py_2,1);
227
    PUTBGR24(dst_1,py_1,1);
228
ENDYUV2RGBFUNC()
229

  
230
// This is exactly the same code as yuv2rgb_c_32 except for the types of
231
// r, g, b, dst_1, dst_2
232
YUV2RGBFUNC(yuv2rgb_c_16, uint16_t)
233
    LOADCHROMA(0);
234
    PUTRGB(dst_1,py_1,0,0);
235
    PUTRGB(dst_2,py_2,0,1);
236

  
237
    LOADCHROMA(1);
238
    PUTRGB(dst_2,py_2,1,1);
239
    PUTRGB(dst_1,py_1,1,0);
240

  
241
    LOADCHROMA(2);
242
    PUTRGB(dst_1,py_1,2,0);
243
    PUTRGB(dst_2,py_2,2,1);
244

  
245
    LOADCHROMA(3);
246
    PUTRGB(dst_2,py_2,3,1);
247
    PUTRGB(dst_1,py_1,3,0);
248
CLOSEYUV2RGBFUNC(8)
249

  
250
// This is exactly the same code as yuv2rgb_c_32 except for the types of
251
// r, g, b, dst_1, dst_2
252
YUV2RGBFUNC(yuv2rgb_c_8, uint8_t)
253
    LOADCHROMA(0);
254
    PUTRGB(dst_1,py_1,0,0);
255
    PUTRGB(dst_2,py_2,0,1);
256

  
257
    LOADCHROMA(1);
258
    PUTRGB(dst_2,py_2,1,1);
259
    PUTRGB(dst_1,py_1,1,0);
260

  
261
    LOADCHROMA(2);
262
    PUTRGB(dst_1,py_1,2,0);
263
    PUTRGB(dst_2,py_2,2,1);
264

  
265
    LOADCHROMA(3);
266
    PUTRGB(dst_2,py_2,3,1);
267
    PUTRGB(dst_1,py_1,3,0);
268
CLOSEYUV2RGBFUNC(8)
269

  
270
// r, g, b, dst_1, dst_2
271
YUV2RGBFUNC(yuv2rgb_c_8_ordered_dither, uint8_t)
272
    const uint8_t *d32 = dither_8x8_32[y&7];
273
    const uint8_t *d64 = dither_8x8_73[y&7];
274
#define PUTRGB8(dst,src,i,o)                                    \
275
    Y = src[2*i];                                               \
276
    dst[2*i]   = r[Y+d32[0+o]] + g[Y+d32[0+o]] + b[Y+d64[0+o]]; \
277
    Y = src[2*i+1];                                             \
278
    dst[2*i+1] = r[Y+d32[1+o]] + g[Y+d32[1+o]] + b[Y+d64[1+o]];
279

  
280
    LOADCHROMA(0);
281
    PUTRGB8(dst_1,py_1,0,0);
282
    PUTRGB8(dst_2,py_2,0,0+8);
283

  
284
    LOADCHROMA(1);
285
    PUTRGB8(dst_2,py_2,1,2+8);
286
    PUTRGB8(dst_1,py_1,1,2);
287

  
288
    LOADCHROMA(2);
289
    PUTRGB8(dst_1,py_1,2,4);
290
    PUTRGB8(dst_2,py_2,2,4+8);
291

  
292
    LOADCHROMA(3);
293
    PUTRGB8(dst_2,py_2,3,6+8);
294
    PUTRGB8(dst_1,py_1,3,6);
295
CLOSEYUV2RGBFUNC(8)
296

  
297

  
298
// This is exactly the same code as yuv2rgb_c_32 except for the types of
299
// r, g, b, dst_1, dst_2
300
YUV2RGBFUNC(yuv2rgb_c_4, uint8_t)
301
    int acc;
302
#define PUTRGB4(dst,src,i)          \
303
    Y = src[2*i];                   \
304
    acc = r[Y] + g[Y] + b[Y];       \
305
    Y = src[2*i+1];                 \
306
    acc |= (r[Y] + g[Y] + b[Y])<<4; \
307
    dst[i] = acc;
308

  
309
    LOADCHROMA(0);
310
    PUTRGB4(dst_1,py_1,0);
311
    PUTRGB4(dst_2,py_2,0);
312

  
313
    LOADCHROMA(1);
314
    PUTRGB4(dst_2,py_2,1);
315
    PUTRGB4(dst_1,py_1,1);
316

  
317
    LOADCHROMA(2);
318
    PUTRGB4(dst_1,py_1,2);
319
    PUTRGB4(dst_2,py_2,2);
320

  
321
    LOADCHROMA(3);
322
    PUTRGB4(dst_2,py_2,3);
323
    PUTRGB4(dst_1,py_1,3);
324
CLOSEYUV2RGBFUNC(4)
325

  
326
YUV2RGBFUNC(yuv2rgb_c_4_ordered_dither, uint8_t)
327
    const uint8_t *d64 =  dither_8x8_73[y&7];
328
    const uint8_t *d128 = dither_8x8_220[y&7];
329
    int acc;
330

  
331
#define PUTRGB4D(dst,src,i,o)                                     \
332
    Y = src[2*i];                                                 \
333
    acc = r[Y+d128[0+o]] + g[Y+d64[0+o]] + b[Y+d128[0+o]];        \
334
    Y = src[2*i+1];                                               \
335
    acc |= (r[Y+d128[1+o]] + g[Y+d64[1+o]] + b[Y+d128[1+o]])<<4;  \
336
    dst[i]= acc;
337

  
338
    LOADCHROMA(0);
339
    PUTRGB4D(dst_1,py_1,0,0);
340
    PUTRGB4D(dst_2,py_2,0,0+8);
341

  
342
    LOADCHROMA(1);
343
    PUTRGB4D(dst_2,py_2,1,2+8);
344
    PUTRGB4D(dst_1,py_1,1,2);
345

  
346
    LOADCHROMA(2);
347
    PUTRGB4D(dst_1,py_1,2,4);
348
    PUTRGB4D(dst_2,py_2,2,4+8);
349

  
350
    LOADCHROMA(3);
351
    PUTRGB4D(dst_2,py_2,3,6+8);
352
    PUTRGB4D(dst_1,py_1,3,6);
353
CLOSEYUV2RGBFUNC(4)
354

  
355
// This is exactly the same code as yuv2rgb_c_32 except for the types of
356
// r, g, b, dst_1, dst_2
357
YUV2RGBFUNC(yuv2rgb_c_4b, uint8_t)
358
    LOADCHROMA(0);
359
    PUTRGB(dst_1,py_1,0,0);
360
    PUTRGB(dst_2,py_2,0,1);
361

  
362
    LOADCHROMA(1);
363
    PUTRGB(dst_2,py_2,1,1);
364
    PUTRGB(dst_1,py_1,1,0);
365

  
366
    LOADCHROMA(2);
367
    PUTRGB(dst_1,py_1,2,0);
368
    PUTRGB(dst_2,py_2,2,1);
369

  
370
    LOADCHROMA(3);
371
    PUTRGB(dst_2,py_2,3,1);
372
    PUTRGB(dst_1,py_1,3,0);
373
CLOSEYUV2RGBFUNC(8)
374

  
375
YUV2RGBFUNC(yuv2rgb_c_4b_ordered_dither, uint8_t)
376
    const uint8_t *d64 =  dither_8x8_73[y&7];
377
    const uint8_t *d128 = dither_8x8_220[y&7];
378

  
379
#define PUTRGB4DB(dst,src,i,o)                                    \
380
    Y = src[2*i];                                                 \
381
    dst[2*i]   = r[Y+d128[0+o]] + g[Y+d64[0+o]] + b[Y+d128[0+o]]; \
382
    Y = src[2*i+1];                                               \
383
    dst[2*i+1] = r[Y+d128[1+o]] + g[Y+d64[1+o]] + b[Y+d128[1+o]];
384

  
385
    LOADCHROMA(0);
386
    PUTRGB4DB(dst_1,py_1,0,0);
387
    PUTRGB4DB(dst_2,py_2,0,0+8);
388

  
389
    LOADCHROMA(1);
390
    PUTRGB4DB(dst_2,py_2,1,2+8);
391
    PUTRGB4DB(dst_1,py_1,1,2);
392

  
393
    LOADCHROMA(2);
394
    PUTRGB4DB(dst_1,py_1,2,4);
395
    PUTRGB4DB(dst_2,py_2,2,4+8);
396

  
397
    LOADCHROMA(3);
398
    PUTRGB4DB(dst_2,py_2,3,6+8);
399
    PUTRGB4DB(dst_1,py_1,3,6);
400
CLOSEYUV2RGBFUNC(8)
401

  
402
YUV2RGBFUNC(yuv2rgb_c_1_ordered_dither, uint8_t)
403
        const uint8_t *d128 = dither_8x8_220[y&7];
404
        char out_1 = 0, out_2 = 0;
405
        g= c->table_gU[128] + c->table_gV[128];
406

  
407
#define PUTRGB1(out,src,i,o)    \
408
    Y = src[2*i];               \
409
    out+= out + g[Y+d128[0+o]]; \
410
    Y = src[2*i+1];             \
411
    out+= out + g[Y+d128[1+o]];
412

  
413
    PUTRGB1(out_1,py_1,0,0);
414
    PUTRGB1(out_2,py_2,0,0+8);
415

  
416
    PUTRGB1(out_2,py_2,1,2+8);
417
    PUTRGB1(out_1,py_1,1,2);
418

  
419
    PUTRGB1(out_1,py_1,2,4);
420
    PUTRGB1(out_2,py_2,2,4+8);
421

  
422
    PUTRGB1(out_2,py_2,3,6+8);
423
    PUTRGB1(out_1,py_1,3,6);
424

  
425
    dst_1[0]= out_1;
426
    dst_2[0]= out_2;
427
CLOSEYUV2RGBFUNC(1)
428

  
429
SwsFunc sws_yuv2rgb_get_func_ptr(SwsContext *c)
430
{
431
    SwsFunc t = NULL;
432
#if (HAVE_MMX2 || HAVE_MMX) && CONFIG_GPL
433
    if (c->flags & SWS_CPU_CAPS_MMX2) {
434
        switch (c->dstFormat) {
435
        case PIX_FMT_RGB32:  return yuv420_rgb32_MMX2;
436
        case PIX_FMT_BGR24:  return yuv420_rgb24_MMX2;
437
        case PIX_FMT_RGB565: return yuv420_rgb16_MMX2;
438
        case PIX_FMT_RGB555: return yuv420_rgb15_MMX2;
439
        }
440
    }
441
    if (c->flags & SWS_CPU_CAPS_MMX) {
442
        switch (c->dstFormat) {
443
        case PIX_FMT_RGB32:  return yuv420_rgb32_MMX;
444
        case PIX_FMT_BGR24:  return yuv420_rgb24_MMX;
445
        case PIX_FMT_RGB565: return yuv420_rgb16_MMX;
446
        case PIX_FMT_RGB555: return yuv420_rgb15_MMX;
447
        }
448
    }
449
#endif
450
#if HAVE_VIS
451
    t = sws_yuv2rgb_init_vis(c);
452
#endif
453
#if CONFIG_MLIB
454
    t = sws_yuv2rgb_init_mlib(c);
455
#endif
456
#if HAVE_ALTIVEC && CONFIG_GPL
457
    if (c->flags & SWS_CPU_CAPS_ALTIVEC)
458
        t = sws_yuv2rgb_init_altivec(c);
459
#endif
460

  
461
#if ARCH_BFIN
462
    if (c->flags & SWS_CPU_CAPS_BFIN)
463
        t = sws_ff_bfin_yuv2rgb_get_func_ptr(c);
464
#endif
465

  
466
    if (t)
467
        return t;
468

  
469
    av_log(c, AV_LOG_WARNING, "No accelerated colorspace conversion found.\n");
470

  
471
    switch (c->dstFormat) {
472
    case PIX_FMT_BGR32_1:
473
    case PIX_FMT_RGB32_1:
474
    case PIX_FMT_BGR32:
475
    case PIX_FMT_RGB32:      return yuv2rgb_c_32;
476
    case PIX_FMT_RGB24:      return yuv2rgb_c_24_rgb;
477
    case PIX_FMT_BGR24:      return yuv2rgb_c_24_bgr;
478
    case PIX_FMT_RGB565:
479
    case PIX_FMT_BGR565:
480
    case PIX_FMT_RGB555:
481
    case PIX_FMT_BGR555:     return yuv2rgb_c_16;
482
    case PIX_FMT_RGB8:
483
    case PIX_FMT_BGR8:       return yuv2rgb_c_8_ordered_dither;
484
    case PIX_FMT_RGB4:
485
    case PIX_FMT_BGR4:       return yuv2rgb_c_4_ordered_dither;
486
    case PIX_FMT_RGB4_BYTE:
487
    case PIX_FMT_BGR4_BYTE:  return yuv2rgb_c_4b_ordered_dither;
488
    case PIX_FMT_MONOBLACK:  return yuv2rgb_c_1_ordered_dither;
489
    default:
490
        assert(0);
491
    }
492
    return NULL;
493
}
494

  
495
static void fill_table(uint8_t* table[256], const int elemsize, const int inc, uint8_t *y_table)
496
{
497
    int i;
498
    int64_t cb = 0;
499

  
500
    y_table -= elemsize * (inc >> 9);
501

  
502
    for (i = 0; i < 256; i++) {
503
        table[i] = y_table + elemsize * (cb >> 16);
504
        cb += inc;
505
    }
506
}
507

  
508
static void fill_gv_table(int table[256], const int elemsize, const int inc)
509
{
510
    int i;
511
    int64_t cb = 0;
512
    int off = -(inc >> 9);
513

  
514
    for (i = 0; i < 256; i++) {
515
        table[i] = elemsize * (off + (cb >> 16));
516
        cb += inc;
517
    }
518
}
519

  
520
av_cold int sws_yuv2rgb_c_init_tables(SwsContext *c, const int inv_table[4], int fullRange,
521
                                      int brightness, int contrast, int saturation)
522
{
523
    const int isRgb =      c->dstFormat==PIX_FMT_RGB32
524
                        || c->dstFormat==PIX_FMT_RGB32_1
525
                        || c->dstFormat==PIX_FMT_BGR24
526
                        || c->dstFormat==PIX_FMT_RGB565
527
                        || c->dstFormat==PIX_FMT_RGB555
528
                        || c->dstFormat==PIX_FMT_RGB8
529
                        || c->dstFormat==PIX_FMT_RGB4
530
                        || c->dstFormat==PIX_FMT_RGB4_BYTE
531
                        || c->dstFormat==PIX_FMT_MONOBLACK;
532
    const int bpp = fmt_depth(c->dstFormat);
533
    uint8_t *y_table;
534
    uint16_t *y_table16;
535
    uint32_t *y_table32;
536
    int i, base, rbase, gbase, bbase;
537
    const int yoffs = fullRange ? 384 : 326;
538

  
539
    int64_t crv =  inv_table[0];
540
    int64_t cbu =  inv_table[1];
541
    int64_t cgu = -inv_table[2];
542
    int64_t cgv = -inv_table[3];
543
    int64_t cy  = 1<<16;
544
    int64_t oy  = 0;
545

  
546
    int64_t yb = 0;
547

  
548
    if (!fullRange) {
549
        cy = (cy*255) / 219;
550
        oy = 16<<16;
551
    } else {
552
        crv = (crv*224) / 255;
553
        cbu = (cbu*224) / 255;
554
        cgu = (cgu*224) / 255;
555
        cgv = (cgv*224) / 255;
556
    }
557

  
558
    cy  = (cy *contrast             ) >> 16;
559
    crv = (crv*contrast * saturation) >> 32;
560
    cbu = (cbu*contrast * saturation) >> 32;
561
    cgu = (cgu*contrast * saturation) >> 32;
562
    cgv = (cgv*contrast * saturation) >> 32;
563
    oy -= 256*brightness;
564

  
565
    //scale coefficients by cy
566
    crv = ((crv << 16) + 0x8000) / cy;
567
    cbu = ((cbu << 16) + 0x8000) / cy;
568
    cgu = ((cgu << 16) + 0x8000) / cy;
569
    cgv = ((cgv << 16) + 0x8000) / cy;
570

  
571
    av_free(c->yuvTable);
572

  
573
    switch (bpp) {
574
    case 1:
575
        c->yuvTable = av_malloc(1024);
576
        y_table = c->yuvTable;
577
        yb = -(384<<16) - oy;
578
        for (i = 0; i < 1024-110; i++) {
579
            y_table[i+110] = av_clip_uint8((yb + 0x8000) >> 16) >> 7;
580
            yb += cy;
581
        }
582
        fill_table(c->table_gU, 1, cgu, y_table + yoffs);
583
        fill_gv_table(c->table_gV, 1, cgv);
584
        break;
585
    case 4:
586
    case 4|128:
587
        rbase = isRgb ? 3 : 0;
588
        gbase = 1;
589
        bbase = isRgb ? 0 : 3;
590
        c->yuvTable = av_malloc(1024*3);
591
        y_table = c->yuvTable;
592
        yb = -(384<<16) - oy;
593
        for (i = 0; i < 1024-110; i++) {
594
            int yval = av_clip_uint8((yb + 0x8000) >> 16);
595
            y_table[i+110     ] =  (yval >> 7)       << rbase;
596
            y_table[i+ 37+1024] = ((yval + 43) / 85) << gbase;
597
            y_table[i+110+2048] =  (yval >> 7)       << bbase;
598
            yb += cy;
599
        }
600
        fill_table(c->table_rV, 1, crv, y_table + yoffs);
601
        fill_table(c->table_gU, 1, cgu, y_table + yoffs + 1024);
602
        fill_table(c->table_bU, 1, cbu, y_table + yoffs + 2048);
603
        fill_gv_table(c->table_gV, 1, cgv);
604
        break;
605
    case 8:
606
        rbase = isRgb ? 5 : 0;
607
        gbase = isRgb ? 2 : 3;
608
        bbase = isRgb ? 0 : 6;
609
        c->yuvTable = av_malloc(1024*3);
610
        y_table = c->yuvTable;
611
        yb = -(384<<16) - oy;
612
        for (i = 0; i < 1024-38; i++) {
613
            int yval = av_clip_uint8((yb + 0x8000) >> 16);
614
            y_table[i+16     ] = ((yval + 18) / 36) << rbase;
615
            y_table[i+16+1024] = ((yval + 18) / 36) << gbase;
616
            y_table[i+37+2048] = ((yval + 43) / 85) << bbase;
617
            yb += cy;
618
        }
619
        fill_table(c->table_rV, 1, crv, y_table + yoffs);
620
        fill_table(c->table_gU, 1, cgu, y_table + yoffs + 1024);
621
        fill_table(c->table_bU, 1, cbu, y_table + yoffs + 2048);
622
        fill_gv_table(c->table_gV, 1, cgv);
623
        break;
624
    case 15:
625
    case 16:
626
        rbase = isRgb ? bpp - 5 : 0;
627
        gbase = 5;
628
        bbase = isRgb ? 0 : (bpp - 5);
629
        c->yuvTable = av_malloc(1024*3*2);
630
        y_table16 = c->yuvTable;
631
        yb = -(384<<16) - oy;
632
        for (i = 0; i < 1024; i++) {
633
            uint8_t yval = av_clip_uint8((yb + 0x8000) >> 16);
634
            y_table16[i     ] = (yval >> 3)          << rbase;
635
            y_table16[i+1024] = (yval >> (18 - bpp)) << gbase;
636
            y_table16[i+2048] = (yval >> 3)          << bbase;
637
            yb += cy;
638
        }
639
        fill_table(c->table_rV, 2, crv, y_table16 + yoffs);
640
        fill_table(c->table_gU, 2, cgu, y_table16 + yoffs + 1024);
641
        fill_table(c->table_bU, 2, cbu, y_table16 + yoffs + 2048);
642
        fill_gv_table(c->table_gV, 2, cgv);
643
        break;
644
    case 24:
645
        c->yuvTable = av_malloc(1024);
646
        y_table = c->yuvTable;
647
        yb = -(384<<16) - oy;
648
        for (i = 0; i < 1024; i++) {
649
            y_table[i] = av_clip_uint8((yb + 0x8000) >> 16);
650
            yb += cy;
651
        }
652
        fill_table(c->table_rV, 1, crv, y_table + yoffs);
653
        fill_table(c->table_gU, 1, cgu, y_table + yoffs);
654
        fill_table(c->table_bU, 1, cbu, y_table + yoffs);
655
        fill_gv_table(c->table_gV, 1, cgv);
656
        break;
657
    case 32:
658
        base = (c->dstFormat == PIX_FMT_RGB32_1 || c->dstFormat == PIX_FMT_BGR32_1) ? 8 : 0;
659
        rbase = base + (isRgb ? 16 : 0);
660
        gbase = base + 8;
661
        bbase = base + (isRgb ? 0 : 16);
662
        c->yuvTable = av_malloc(1024*3*4);
663
        y_table32 = c->yuvTable;
664
        yb = -(384<<16) - oy;
665
        for (i = 0; i < 1024; i++) {
666
            uint8_t yval = av_clip_uint8((yb + 0x8000) >> 16);
667
            y_table32[i     ] = yval << rbase;
668
            y_table32[i+1024] = yval << gbase;
669
            y_table32[i+2048] = yval << bbase;
670
            yb += cy;
671
        }
672
        fill_table(c->table_rV, 4, crv, y_table32 + yoffs);
673
        fill_table(c->table_gU, 4, cgu, y_table32 + yoffs + 1024);
674
        fill_table(c->table_bU, 4, cbu, y_table32 + yoffs + 2048);
675
        fill_gv_table(c->table_gV, 4, cgv);
676
        break;
677
    default:
678
        c->yuvTable = NULL;
679
        av_log(c, AV_LOG_ERROR, "%ibpp not supported by yuv2rgb\n", bpp);
680
        return -1;
681
    }
682
    return 0;
683
}

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