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1
/*
2
 * yuv2rgb.c, Software YUV to RGB converter
3
 *
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 *  Copyright (C) 1999, Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
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 *
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 *  Functions broken out from display_x11.c and several new modes
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 *  added by HÃ¥kan Hjort <d95hjort@dtek.chalmers.se>
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 *
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 *  15 & 16 bpp support by Franck Sicard <Franck.Sicard@solsoft.fr>
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 *
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 *  MMX/MMX2 template stuff (needed for fast movntq support),
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 *  1,4,8bpp support and context / deglobalize stuff
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 *  by Michael Niedermayer (michaelni@gmx.at)
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 *
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 *  This file is part of mpeg2dec, a free MPEG-2 video decoder
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 *
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 *  mpeg2dec is free software; you can redistribute it and/or modify
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 *  it under the terms of the GNU General Public License as published by
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 *  the Free Software Foundation; either version 2, or (at your option)
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 *  any later version.
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 *
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 *  mpeg2dec is distributed in the hope that it will be useful,
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 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
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 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 *  GNU General Public License for more details.
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 *
27
 *  You should have received a copy of the GNU General Public License
28
 *  along with mpeg2dec; if not, write to the Free Software
29
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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 */
31

    
32
#include <stdio.h>
33
#include <stdlib.h>
34
#include <inttypes.h>
35
#include <assert.h>
36

    
37
#include "config.h"
38
#include "rgb2rgb.h"
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#include "swscale.h"
40
#include "swscale_internal.h"
41

    
42
#define DITHER1XBPP // only for MMX
43

    
44
const uint8_t  __attribute__((aligned(8))) dither_2x2_4[2][8]={
45
{  1,   3,   1,   3,   1,   3,   1,   3, },
46
{  2,   0,   2,   0,   2,   0,   2,   0, },
47
};
48

    
49
const uint8_t  __attribute__((aligned(8))) dither_2x2_8[2][8]={
50
{  6,   2,   6,   2,   6,   2,   6,   2, },
51
{  0,   4,   0,   4,   0,   4,   0,   4, },
52
};
53

    
54
const uint8_t  __attribute__((aligned(8))) dither_8x8_32[8][8]={
55
{ 17,   9,  23,  15,  16,   8,  22,  14, },
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{  5,  29,   3,  27,   4,  28,   2,  26, },
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{ 21,  13,  19,  11,  20,  12,  18,  10, },
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{  0,  24,   6,  30,   1,  25,   7,  31, },
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{ 16,   8,  22,  14,  17,   9,  23,  15, },
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{  4,  28,   2,  26,   5,  29,   3,  27, },
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{ 20,  12,  18,  10,  21,  13,  19,  11, },
62
{  1,  25,   7,  31,   0,  24,   6,  30, },
63
};
64

    
65
#if 0
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const uint8_t  __attribute__((aligned(8))) dither_8x8_64[8][8]={
67
{  0,  48,  12,  60,   3,  51,  15,  63, },
68
{ 32,  16,  44,  28,  35,  19,  47,  31, },
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{  8,  56,   4,  52,  11,  59,   7,  55, },
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{ 40,  24,  36,  20,  43,  27,  39,  23, },
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{  2,  50,  14,  62,   1,  49,  13,  61, },
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{ 34,  18,  46,  30,  33,  17,  45,  29, },
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{ 10,  58,   6,  54,   9,  57,   5,  53, },
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{ 42,  26,  38,  22,  41,  25,  37,  21, },
75
};
76
#endif
77

    
78
const uint8_t  __attribute__((aligned(8))) dither_8x8_73[8][8]={
79
{  0,  55,  14,  68,   3,  58,  17,  72, },
80
{ 37,  18,  50,  32,  40,  22,  54,  35, },
81
{  9,  64,   5,  59,  13,  67,   8,  63, },
82
{ 46,  27,  41,  23,  49,  31,  44,  26, },
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{  2,  57,  16,  71,   1,  56,  15,  70, },
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{ 39,  21,  52,  34,  38,  19,  51,  33, },
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{ 11,  66,   7,  62,  10,  65,   6,  60, },
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{ 48,  30,  43,  25,  47,  29,  42,  24, },
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};
88

    
89
#if 0
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const uint8_t  __attribute__((aligned(8))) dither_8x8_128[8][8]={
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{ 68,  36,  92,  60,  66,  34,  90,  58, },
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{ 20, 116,  12, 108,  18, 114,  10, 106, },
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{ 84,  52,  76,  44,  82,  50,  74,  42, },
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{  0,  96,  24, 120,   6, 102,  30, 126, },
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{ 64,  32,  88,  56,  70,  38,  94,  62, },
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{ 16, 112,   8, 104,  22, 118,  14, 110, },
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{ 80,  48,  72,  40,  86,  54,  78,  46, },
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{  4, 100,  28, 124,   2,  98,  26, 122, },
99
};
100
#endif
101

    
102
#if 1
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const uint8_t  __attribute__((aligned(8))) dither_8x8_220[8][8]={
104
{117,  62, 158, 103, 113,  58, 155, 100, },
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{ 34, 199,  21, 186,  31, 196,  17, 182, },
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{144,  89, 131,  76, 141,  86, 127,  72, },
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{  0, 165,  41, 206,  10, 175,  52, 217, },
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{110,  55, 151,  96, 120,  65, 162, 107, },
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{ 28, 193,  14, 179,  38, 203,  24, 189, },
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{138,  83, 124,  69, 148,  93, 134,  79, },
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{  7, 172,  48, 213,   3, 168,  45, 210, },
112
};
113
#elif 1
114
// tries to correct a gamma of 1.5
115
const uint8_t  __attribute__((aligned(8))) dither_8x8_220[8][8]={
116
{  0, 143,  18, 200,   2, 156,  25, 215, },
117
{ 78,  28, 125,  64,  89,  36, 138,  74, },
118
{ 10, 180,   3, 161,  16, 195,   8, 175, },
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{109,  51,  93,  38, 121,  60, 105,  47, },
120
{  1, 152,  23, 210,   0, 147,  20, 205, },
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{ 85,  33, 134,  71,  81,  30, 130,  67, },
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{ 14, 190,   6, 171,  12, 185,   5, 166, },
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{117,  57, 101,  44, 113,  54,  97,  41, },
124
};
125
#elif 1
126
// tries to correct a gamma of 2.0
127
const uint8_t  __attribute__((aligned(8))) dither_8x8_220[8][8]={
128
{  0, 124,   8, 193,   0, 140,  12, 213, },
129
{ 55,  14, 104,  42,  66,  19, 119,  52, },
130
{  3, 168,   1, 145,   6, 187,   3, 162, },
131
{ 86,  31,  70,  21,  99,  39,  82,  28, },
132
{  0, 134,  11, 206,   0, 129,   9, 200, },
133
{ 62,  17, 114,  48,  58,  16, 109,  45, },
134
{  5, 181,   2, 157,   4, 175,   1, 151, },
135
{ 95,  36,  78,  26,  90,  34,  74,  24, },
136
};
137
#else
138
// tries to correct a gamma of 2.5
139
const uint8_t  __attribute__((aligned(8))) dither_8x8_220[8][8]={
140
{  0, 107,   3, 187,   0, 125,   6, 212, },
141
{ 39,   7,  86,  28,  49,  11, 102,  36, },
142
{  1, 158,   0, 131,   3, 180,   1, 151, },
143
{ 68,  19,  52,  12,  81,  25,  64,  17, },
144
{  0, 119,   5, 203,   0, 113,   4, 195, },
145
{ 45,   9,  96,  33,  42,   8,  91,  30, },
146
{  2, 172,   1, 144,   2, 165,   0, 137, },
147
{ 77,  23,  60,  15,  72,  21,  56,  14, },
148
};
149
#endif
150

    
151
#ifdef HAVE_MMX
152

    
153
/* hope these constant values are cache line aligned */
154
DECLARE_ASM_CONST(8, uint64_t, mmx_00ffw)   = 0x00ff00ff00ff00ffULL;
155
DECLARE_ASM_CONST(8, uint64_t, mmx_redmask) = 0xf8f8f8f8f8f8f8f8ULL;
156
DECLARE_ASM_CONST(8, uint64_t, mmx_grnmask) = 0xfcfcfcfcfcfcfcfcULL;
157

    
158
// The volatile is required because gcc otherwise optimizes some writes away
159
// not knowing that these are read in the ASM block.
160
static volatile uint64_t attribute_used __attribute__((aligned(8))) b5Dither;
161
static volatile uint64_t attribute_used __attribute__((aligned(8))) g5Dither;
162
static volatile uint64_t attribute_used __attribute__((aligned(8))) g6Dither;
163
static volatile uint64_t attribute_used __attribute__((aligned(8))) r5Dither;
164

    
165
#undef HAVE_MMX
166

    
167
//MMX versions
168
#undef RENAME
169
#define HAVE_MMX
170
#undef HAVE_MMX2
171
#undef HAVE_3DNOW
172
#define RENAME(a) a ## _MMX
173
#include "yuv2rgb_template.c"
174

    
175
//MMX2 versions
176
#undef RENAME
177
#define HAVE_MMX
178
#define HAVE_MMX2
179
#undef HAVE_3DNOW
180
#define RENAME(a) a ## _MMX2
181
#include "yuv2rgb_template.c"
182

    
183
#endif /* HAVE_MMX */
184

    
185
const int32_t Inverse_Table_6_9[8][4] = {
186
    {117504, 138453, 13954, 34903}, /* no sequence_display_extension */
187
    {117504, 138453, 13954, 34903}, /* ITU-R Rec. 709 (1990) */
188
    {104597, 132201, 25675, 53279}, /* unspecified */
189
    {104597, 132201, 25675, 53279}, /* reserved */
190
    {104448, 132798, 24759, 53109}, /* FCC */
191
    {104597, 132201, 25675, 53279}, /* ITU-R Rec. 624-4 System B, G */
192
    {104597, 132201, 25675, 53279}, /* SMPTE 170M */
193
    {117579, 136230, 16907, 35559}  /* SMPTE 240M (1987) */
194
};
195

    
196
#define RGB(i)                                      \
197
    U = pu[i];                                      \
198
    V = pv[i];                                      \
199
    r = (void *)c->table_rV[V];                     \
200
    g = (void *)(c->table_gU[U] + c->table_gV[V]);  \
201
    b = (void *)c->table_bU[U];
202

    
203
#define DST1(i)                         \
204
    Y = py_1[2*i];                      \
205
    dst_1[2*i] = r[Y] + g[Y] + b[Y];    \
206
    Y = py_1[2*i+1];                    \
207
    dst_1[2*i+1] = r[Y] + g[Y] + b[Y];
208

    
209
#define DST2(i)                         \
210
    Y = py_2[2*i];                      \
211
    dst_2[2*i] = r[Y] + g[Y] + b[Y];    \
212
    Y = py_2[2*i+1];                    \
213
    dst_2[2*i+1] = r[Y] + g[Y] + b[Y];
214

    
215
#define DST1RGB(i)                                                \
216
    Y = py_1[2*i];                                                \
217
    dst_1[6*i] = r[Y]; dst_1[6*i+1] = g[Y]; dst_1[6*i+2] = b[Y];  \
218
    Y = py_1[2*i+1];                                              \
219
    dst_1[6*i+3] = r[Y]; dst_1[6*i+4] = g[Y]; dst_1[6*i+5] = b[Y];
220

    
221
#define DST2RGB(i)                                                \
222
    Y = py_2[2*i];                                                \
223
    dst_2[6*i] = r[Y]; dst_2[6*i+1] = g[Y]; dst_2[6*i+2] = b[Y];  \
224
    Y = py_2[2*i+1];                                              \
225
    dst_2[6*i+3] = r[Y]; dst_2[6*i+4] = g[Y]; dst_2[6*i+5] = b[Y];
226

    
227
#define DST1BGR(i)                                                \
228
    Y = py_1[2*i];                                                \
229
    dst_1[6*i] = b[Y]; dst_1[6*i+1] = g[Y]; dst_1[6*i+2] = r[Y];  \
230
    Y = py_1[2*i+1];                                              \
231
    dst_1[6*i+3] = b[Y]; dst_1[6*i+4] = g[Y]; dst_1[6*i+5] = r[Y];
232

    
233
#define DST2BGR(i)                                                \
234
    Y = py_2[2*i];                                                \
235
    dst_2[6*i] = b[Y]; dst_2[6*i+1] = g[Y]; dst_2[6*i+2] = r[Y];  \
236
    Y = py_2[2*i+1];                                              \
237
    dst_2[6*i+3] = b[Y]; dst_2[6*i+4] = g[Y]; dst_2[6*i+5] = r[Y];
238

    
239
#define PROLOG(func_name, dst_type) \
240
static int func_name(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY, \
241
                     int srcSliceH, uint8_t* dst[], int dstStride[]){\
242
    int y;\
243
\
244
    if (c->srcFormat == PIX_FMT_YUV422P){\
245
        srcStride[1] *= 2;\
246
        srcStride[2] *= 2;\
247
    }\
248
    for (y=0; y<srcSliceH; y+=2){\
249
        dst_type *dst_1= (dst_type*)(dst[0] + (y+srcSliceY  )*dstStride[0]);\
250
        dst_type *dst_2= (dst_type*)(dst[0] + (y+srcSliceY+1)*dstStride[0]);\
251
        dst_type av_unused *r, *b;\
252
        dst_type *g;\
253
        uint8_t *py_1= src[0] + y*srcStride[0];\
254
        uint8_t *py_2= py_1 + srcStride[0];\
255
        uint8_t *pu= src[1] + (y>>1)*srcStride[1];\
256
        uint8_t *pv= src[2] + (y>>1)*srcStride[2];\
257
        unsigned int h_size= c->dstW>>3;\
258
        while (h_size--) {\
259
            int av_unused U, V;\
260
            int Y;\
261

    
262
#define EPILOG1(dst_delta)\
263
            pu += 4;\
264
            pv += 4;\
265
            py_1 += 8;\
266
            py_2 += 8;\
267
            dst_1 += dst_delta;\
268
            dst_2 += dst_delta;\
269
        }\
270
        if (c->dstW & 4) {\
271
            int av_unused Y, U, V;\
272

    
273
#define EPILOG2()\
274
        }\
275
    }\
276
    return srcSliceH;\
277
}
278

    
279
#define EPILOG(dst_delta)\
280
    EPILOG1(dst_delta)\
281
    EPILOG2()
282

    
283
PROLOG(yuv2rgb_c_32, uint32_t)
284
    RGB(0);
285
    DST1(0);
286
    DST2(0);
287

    
288
    RGB(1);
289
    DST2(1);
290
    DST1(1);
291

    
292
    RGB(2);
293
    DST1(2);
294
    DST2(2);
295

    
296
    RGB(3);
297
    DST2(3);
298
    DST1(3);
299
EPILOG1(8)
300
    RGB(0);
301
    DST1(0);
302
    DST2(0);
303

    
304
    RGB(1);
305
    DST2(1);
306
    DST1(1);
307
EPILOG2()
308

    
309
PROLOG(yuv2rgb_c_24_rgb, uint8_t)
310
    RGB(0);
311
    DST1RGB(0);
312
    DST2RGB(0);
313

    
314
    RGB(1);
315
    DST2RGB(1);
316
    DST1RGB(1);
317

    
318
    RGB(2);
319
    DST1RGB(2);
320
    DST2RGB(2);
321

    
322
    RGB(3);
323
    DST2RGB(3);
324
    DST1RGB(3);
325
EPILOG1(24)
326
    RGB(0);
327
    DST1RGB(0);
328
    DST2RGB(0);
329

    
330
    RGB(1);
331
    DST2RGB(1);
332
    DST1RGB(1);
333
EPILOG2()
334

    
335
// only trivial mods from yuv2rgb_c_24_rgb
336
PROLOG(yuv2rgb_c_24_bgr, uint8_t)
337
    RGB(0);
338
    DST1BGR(0);
339
    DST2BGR(0);
340

    
341
    RGB(1);
342
    DST2BGR(1);
343
    DST1BGR(1);
344

    
345
    RGB(2);
346
    DST1BGR(2);
347
    DST2BGR(2);
348

    
349
    RGB(3);
350
    DST2BGR(3);
351
    DST1BGR(3);
352
EPILOG1(24)
353
    RGB(0);
354
    DST1BGR(0);
355
    DST2BGR(0);
356

    
357
    RGB(1);
358
    DST2BGR(1);
359
    DST1BGR(1);
360
EPILOG2()
361

    
362
// This is exactly the same code as yuv2rgb_c_32 except for the types of
363
// r, g, b, dst_1, dst_2
364
PROLOG(yuv2rgb_c_16, uint16_t)
365
    RGB(0);
366
    DST1(0);
367
    DST2(0);
368

    
369
    RGB(1);
370
    DST2(1);
371
    DST1(1);
372

    
373
    RGB(2);
374
    DST1(2);
375
    DST2(2);
376

    
377
    RGB(3);
378
    DST2(3);
379
    DST1(3);
380
EPILOG(8)
381

    
382
// This is exactly the same code as yuv2rgb_c_32 except for the types of
383
// r, g, b, dst_1, dst_2
384
PROLOG(yuv2rgb_c_8, uint8_t)
385
    RGB(0);
386
    DST1(0);
387
    DST2(0);
388

    
389
    RGB(1);
390
    DST2(1);
391
    DST1(1);
392

    
393
    RGB(2);
394
    DST1(2);
395
    DST2(2);
396

    
397
    RGB(3);
398
    DST2(3);
399
    DST1(3);
400
EPILOG(8)
401

    
402
// r, g, b, dst_1, dst_2
403
PROLOG(yuv2rgb_c_8_ordered_dither, uint8_t)
404
    const uint8_t *d32= dither_8x8_32[y&7];
405
    const uint8_t *d64= dither_8x8_73[y&7];
406
#define DST1bpp8(i,o)                                               \
407
    Y = py_1[2*i];                                                  \
408
    dst_1[2*i]   = r[Y+d32[0+o]] + g[Y+d32[0+o]] + b[Y+d64[0+o]];   \
409
    Y = py_1[2*i+1];                                                \
410
    dst_1[2*i+1] = r[Y+d32[1+o]] + g[Y+d32[1+o]] + b[Y+d64[1+o]];
411

    
412
#define DST2bpp8(i,o)                                               \
413
    Y = py_2[2*i];                                                  \
414
    dst_2[2*i]   =  r[Y+d32[8+o]] + g[Y+d32[8+o]] + b[Y+d64[8+o]];  \
415
    Y = py_2[2*i+1];                                                \
416
    dst_2[2*i+1] =  r[Y+d32[9+o]] + g[Y+d32[9+o]] + b[Y+d64[9+o]];
417

    
418

    
419
    RGB(0);
420
    DST1bpp8(0,0);
421
    DST2bpp8(0,0);
422

    
423
    RGB(1);
424
    DST2bpp8(1,2);
425
    DST1bpp8(1,2);
426

    
427
    RGB(2);
428
    DST1bpp8(2,4);
429
    DST2bpp8(2,4);
430

    
431
    RGB(3);
432
    DST2bpp8(3,6);
433
    DST1bpp8(3,6);
434
EPILOG(8)
435

    
436

    
437
// This is exactly the same code as yuv2rgb_c_32 except for the types of
438
// r, g, b, dst_1, dst_2
439
PROLOG(yuv2rgb_c_4, uint8_t)
440
    int acc;
441
#define DST1_4(i)                   \
442
    Y = py_1[2*i];                  \
443
    acc = r[Y] + g[Y] + b[Y];       \
444
    Y = py_1[2*i+1];                \
445
    acc |= (r[Y] + g[Y] + b[Y])<<4; \
446
    dst_1[i] = acc;
447

    
448
#define DST2_4(i)                   \
449
    Y = py_2[2*i];                  \
450
    acc = r[Y] + g[Y] + b[Y];       \
451
    Y = py_2[2*i+1];                \
452
    acc |= (r[Y] + g[Y] + b[Y])<<4; \
453
    dst_2[i] = acc;
454

    
455
    RGB(0);
456
    DST1_4(0);
457
    DST2_4(0);
458

    
459
    RGB(1);
460
    DST2_4(1);
461
    DST1_4(1);
462

    
463
    RGB(2);
464
    DST1_4(2);
465
    DST2_4(2);
466

    
467
    RGB(3);
468
    DST2_4(3);
469
    DST1_4(3);
470
EPILOG(4)
471

    
472
PROLOG(yuv2rgb_c_4_ordered_dither, uint8_t)
473
    const uint8_t *d64= dither_8x8_73[y&7];
474
    const uint8_t *d128=dither_8x8_220[y&7];
475
    int acc;
476

    
477
#define DST1bpp4(i,o)                                             \
478
    Y = py_1[2*i];                                                \
479
    acc = r[Y+d128[0+o]] + g[Y+d64[0+o]] + b[Y+d128[0+o]];        \
480
    Y = py_1[2*i+1];                                              \
481
    acc |= (r[Y+d128[1+o]] + g[Y+d64[1+o]] + b[Y+d128[1+o]])<<4;  \
482
    dst_1[i]= acc;
483

    
484
#define DST2bpp4(i,o)                                             \
485
    Y = py_2[2*i];                                                \
486
    acc =  r[Y+d128[8+o]] + g[Y+d64[8+o]] + b[Y+d128[8+o]];       \
487
    Y = py_2[2*i+1];                                              \
488
    acc |=  (r[Y+d128[9+o]] + g[Y+d64[9+o]] + b[Y+d128[9+o]])<<4; \
489
    dst_2[i]= acc;
490

    
491

    
492
    RGB(0);
493
    DST1bpp4(0,0);
494
    DST2bpp4(0,0);
495

    
496
    RGB(1);
497
    DST2bpp4(1,2);
498
    DST1bpp4(1,2);
499

    
500
    RGB(2);
501
    DST1bpp4(2,4);
502
    DST2bpp4(2,4);
503

    
504
    RGB(3);
505
    DST2bpp4(3,6);
506
    DST1bpp4(3,6);
507
EPILOG(4)
508

    
509
// This is exactly the same code as yuv2rgb_c_32 except for the types of
510
// r, g, b, dst_1, dst_2
511
PROLOG(yuv2rgb_c_4b, uint8_t)
512
    RGB(0);
513
    DST1(0);
514
    DST2(0);
515

    
516
    RGB(1);
517
    DST2(1);
518
    DST1(1);
519

    
520
    RGB(2);
521
    DST1(2);
522
    DST2(2);
523

    
524
    RGB(3);
525
    DST2(3);
526
    DST1(3);
527
EPILOG(8)
528

    
529
PROLOG(yuv2rgb_c_4b_ordered_dither, uint8_t)
530
    const uint8_t *d64= dither_8x8_73[y&7];
531
    const uint8_t *d128=dither_8x8_220[y&7];
532

    
533
#define DST1bpp4b(i,o)                                                \
534
    Y = py_1[2*i];                                                    \
535
    dst_1[2*i]   = r[Y+d128[0+o]] + g[Y+d64[0+o]] + b[Y+d128[0+o]];   \
536
    Y = py_1[2*i+1];                                                  \
537
    dst_1[2*i+1] = r[Y+d128[1+o]] + g[Y+d64[1+o]] + b[Y+d128[1+o]];
538

    
539
#define DST2bpp4b(i,o)                                                \
540
    Y = py_2[2*i];                                                    \
541
    dst_2[2*i]   =  r[Y+d128[8+o]] + g[Y+d64[8+o]] + b[Y+d128[8+o]];  \
542
    Y = py_2[2*i+1];                                                  \
543
    dst_2[2*i+1] =  r[Y+d128[9+o]] + g[Y+d64[9+o]] + b[Y+d128[9+o]];
544

    
545

    
546
    RGB(0);
547
    DST1bpp4b(0,0);
548
    DST2bpp4b(0,0);
549

    
550
    RGB(1);
551
    DST2bpp4b(1,2);
552
    DST1bpp4b(1,2);
553

    
554
    RGB(2);
555
    DST1bpp4b(2,4);
556
    DST2bpp4b(2,4);
557

    
558
    RGB(3);
559
    DST2bpp4b(3,6);
560
    DST1bpp4b(3,6);
561
EPILOG(8)
562

    
563
PROLOG(yuv2rgb_c_1_ordered_dither, uint8_t)
564
        const uint8_t *d128=dither_8x8_220[y&7];
565
        char out_1=0, out_2=0;
566
        g= c->table_gU[128] + c->table_gV[128];
567

    
568
#define DST1bpp1(i,o)               \
569
    Y = py_1[2*i];                  \
570
    out_1+= out_1 + g[Y+d128[0+o]]; \
571
    Y = py_1[2*i+1];                \
572
    out_1+= out_1 + g[Y+d128[1+o]];
573

    
574
#define DST2bpp1(i,o)               \
575
    Y = py_2[2*i];                  \
576
    out_2+= out_2 + g[Y+d128[8+o]]; \
577
    Y = py_2[2*i+1];                \
578
    out_2+= out_2 + g[Y+d128[9+o]];
579

    
580
    DST1bpp1(0,0);
581
    DST2bpp1(0,0);
582

    
583
    DST2bpp1(1,2);
584
    DST1bpp1(1,2);
585

    
586
    DST1bpp1(2,4);
587
    DST2bpp1(2,4);
588

    
589
    DST2bpp1(3,6);
590
    DST1bpp1(3,6);
591

    
592
    dst_1[0]= out_1;
593
    dst_2[0]= out_2;
594
EPILOG(1)
595

    
596
SwsFunc yuv2rgb_get_func_ptr (SwsContext *c)
597
{
598
#if defined(HAVE_MMX2) || defined(HAVE_MMX)
599
    if (c->flags & SWS_CPU_CAPS_MMX2){
600
        switch(c->dstFormat){
601
        case PIX_FMT_RGB32:  return yuv420_rgb32_MMX2;
602
        case PIX_FMT_BGR24:  return yuv420_rgb24_MMX2;
603
        case PIX_FMT_RGB565: return yuv420_rgb16_MMX2;
604
        case PIX_FMT_RGB555: return yuv420_rgb15_MMX2;
605
        }
606
    }
607
    if (c->flags & SWS_CPU_CAPS_MMX){
608
        switch(c->dstFormat){
609
        case PIX_FMT_RGB32:  return yuv420_rgb32_MMX;
610
        case PIX_FMT_BGR24:  return yuv420_rgb24_MMX;
611
        case PIX_FMT_RGB565: return yuv420_rgb16_MMX;
612
        case PIX_FMT_RGB555: return yuv420_rgb15_MMX;
613
        }
614
    }
615
#endif
616
#ifdef HAVE_VIS
617
    {
618
        SwsFunc t= yuv2rgb_init_vis(c);
619
        if (t) return t;
620
    }
621
#endif
622
#ifdef CONFIG_MLIB
623
    {
624
        SwsFunc t= yuv2rgb_init_mlib(c);
625
        if (t) return t;
626
    }
627
#endif
628
#ifdef HAVE_ALTIVEC
629
    if (c->flags & SWS_CPU_CAPS_ALTIVEC)
630
    {
631
        SwsFunc t = yuv2rgb_init_altivec(c);
632
        if (t) return t;
633
    }
634
#endif
635

    
636
#ifdef ARCH_BFIN
637
    if (c->flags & SWS_CPU_CAPS_BFIN)
638
    {
639
        SwsFunc t = ff_bfin_yuv2rgb_get_func_ptr (c);
640
        if (t) return t;
641
    }
642
#endif
643

    
644
    av_log(c, AV_LOG_WARNING, "No accelerated colorspace conversion found.\n");
645

    
646
    switch(c->dstFormat){
647
    case PIX_FMT_BGR32_1:
648
    case PIX_FMT_RGB32_1:
649
    case PIX_FMT_BGR32:
650
    case PIX_FMT_RGB32: return yuv2rgb_c_32;
651
    case PIX_FMT_RGB24: return yuv2rgb_c_24_rgb;
652
    case PIX_FMT_BGR24: return yuv2rgb_c_24_bgr;
653
    case PIX_FMT_RGB565:
654
    case PIX_FMT_BGR565:
655
    case PIX_FMT_RGB555:
656
    case PIX_FMT_BGR555: return yuv2rgb_c_16;
657
    case PIX_FMT_RGB8:
658
    case PIX_FMT_BGR8:  return yuv2rgb_c_8_ordered_dither;
659
    case PIX_FMT_RGB4:
660
    case PIX_FMT_BGR4:  return yuv2rgb_c_4_ordered_dither;
661
    case PIX_FMT_RGB4_BYTE:
662
    case PIX_FMT_BGR4_BYTE:  return yuv2rgb_c_4b_ordered_dither;
663
    case PIX_FMT_MONOBLACK:  return yuv2rgb_c_1_ordered_dither;
664
    default:
665
        assert(0);
666
    }
667
    return NULL;
668
}
669

    
670
static int div_round (int dividend, int divisor)
671
{
672
    if (dividend > 0)
673
        return (dividend + (divisor>>1)) / divisor;
674
    else
675
        return -((-dividend + (divisor>>1)) / divisor);
676
}
677

    
678
int yuv2rgb_c_init_tables (SwsContext *c, const int inv_table[4], int fullRange, int brightness, int contrast, int saturation)
679
{
680
    const int isRgb =      c->dstFormat==PIX_FMT_RGB32
681
                        || c->dstFormat==PIX_FMT_RGB32_1
682
                        || c->dstFormat==PIX_FMT_BGR24
683
                        || c->dstFormat==PIX_FMT_RGB565
684
                        || c->dstFormat==PIX_FMT_RGB555
685
                        || c->dstFormat==PIX_FMT_RGB8
686
                        || c->dstFormat==PIX_FMT_RGB4
687
                        || c->dstFormat==PIX_FMT_RGB4_BYTE
688
                        || c->dstFormat==PIX_FMT_MONOBLACK;
689
    const int bpp = fmt_depth(c->dstFormat);
690
    int i, base;
691
    uint8_t table_Y[1024];
692
    uint32_t *table_32 = 0;
693
    uint16_t *table_16 = 0;
694
    uint8_t *table_8 = 0;
695
    uint8_t *table_332 = 0;
696
    uint8_t *table_121 = 0;
697
    uint8_t *table_1 = 0;
698
    int entry_size = 0;
699
    void *table_r = 0, *table_g = 0, *table_b = 0;
700
    void *table_start;
701

    
702
    int64_t crv =  inv_table[0];
703
    int64_t cbu =  inv_table[1];
704
    int64_t cgu = -inv_table[2];
705
    int64_t cgv = -inv_table[3];
706
    int64_t cy  = 1<<16;
707
    int64_t oy  = 0;
708

    
709
//printf("%lld %lld %lld %lld %lld\n", cy, crv, cbu, cgu, cgv);
710
    if (!fullRange){
711
        cy= (cy*255) / 219;
712
        oy= 16<<16;
713
    }else{
714
        crv= (crv*224) / 255;
715
        cbu= (cbu*224) / 255;
716
        cgu= (cgu*224) / 255;
717
        cgv= (cgv*224) / 255;
718
    }
719

    
720
    cy = (cy *contrast             )>>16;
721
    crv= (crv*contrast * saturation)>>32;
722
    cbu= (cbu*contrast * saturation)>>32;
723
    cgu= (cgu*contrast * saturation)>>32;
724
    cgv= (cgv*contrast * saturation)>>32;
725
//printf("%lld %lld %lld %lld %lld\n", cy, crv, cbu, cgu, cgv);
726
    oy -= 256*brightness;
727

    
728
    for (i = 0; i < 1024; i++) {
729
        int j;
730

    
731
        j= (cy*(((i - 384)<<16) - oy) + (1<<31))>>32;
732
        j = (j < 0) ? 0 : ((j > 255) ? 255 : j);
733
        table_Y[i] = j;
734
    }
735

    
736
    switch (bpp) {
737
    case 32:
738
        table_start= table_32 = av_malloc ((197 + 2*682 + 256 + 132) * sizeof (uint32_t));
739
        base= (c->dstFormat == PIX_FMT_RGB32_1 || c->dstFormat == PIX_FMT_BGR32_1) ? 8 : 0;
740

    
741
        entry_size = sizeof (uint32_t);
742
        table_r = table_32 + 197;
743
        table_b = table_32 + 197 + 685;
744
        table_g = table_32 + 197 + 2*682;
745

    
746
        for (i = -197; i < 256+197; i++)
747
            ((uint32_t *)table_r)[i] = table_Y[i+384] << ((isRgb ? 16 : 0) + base);
748
        for (i = -132; i < 256+132; i++)
749
            ((uint32_t *)table_g)[i] = table_Y[i+384] << (8                + base);
750
        for (i = -232; i < 256+232; i++)
751
            ((uint32_t *)table_b)[i] = table_Y[i+384] << ((isRgb ? 0 : 16) + base);
752
        break;
753

    
754
    case 24:
755
        table_start= table_8 = av_malloc ((256 + 2*232) * sizeof (uint8_t));
756

    
757
        entry_size = sizeof (uint8_t);
758
        table_r = table_g = table_b = table_8 + 232;
759

    
760
        for (i = -232; i < 256+232; i++)
761
            ((uint8_t * )table_b)[i] = table_Y[i+384];
762
        break;
763

    
764
    case 15:
765
    case 16:
766
        table_start= table_16 = av_malloc ((197 + 2*682 + 256 + 132) * sizeof (uint16_t));
767

    
768
        entry_size = sizeof (uint16_t);
769
        table_r = table_16 + 197;
770
        table_b = table_16 + 197 + 685;
771
        table_g = table_16 + 197 + 2*682;
772

    
773
        for (i = -197; i < 256+197; i++) {
774
            int j = table_Y[i+384] >> 3;
775

    
776
            if (isRgb)
777
                j <<= ((bpp==16) ? 11 : 10);
778

    
779
            ((uint16_t *)table_r)[i] = j;
780
        }
781
        for (i = -132; i < 256+132; i++) {
782
            int j = table_Y[i+384] >> ((bpp==16) ? 2 : 3);
783

    
784
            ((uint16_t *)table_g)[i] = j << 5;
785
        }
786
        for (i = -232; i < 256+232; i++) {
787
            int j = table_Y[i+384] >> 3;
788

    
789
            if (!isRgb)
790
                j <<= ((bpp==16) ? 11 : 10);
791

    
792
            ((uint16_t *)table_b)[i] = j;
793
        }
794
        break;
795

    
796
    case 8:
797
        table_start= table_332 = av_malloc ((197 + 2*682 + 256 + 132) * sizeof (uint8_t));
798

    
799
        entry_size = sizeof (uint8_t);
800
        table_r = table_332 + 197;
801
        table_b = table_332 + 197 + 685;
802
        table_g = table_332 + 197 + 2*682;
803

    
804
        for (i = -197; i < 256+197; i++) {
805
            int j = (table_Y[i+384 - 16] + 18)/36;
806

    
807
            if (isRgb)
808
                j <<= 5;
809

    
810
            ((uint8_t *)table_r)[i] = j;
811
        }
812
        for (i = -132; i < 256+132; i++) {
813
            int j = (table_Y[i+384 - 16] + 18)/36;
814

    
815
            if (!isRgb)
816
                j <<= 1;
817

    
818
            ((uint8_t *)table_g)[i] = j << 2;
819
        }
820
        for (i = -232; i < 256+232; i++) {
821
            int j = (table_Y[i+384 - 37] + 43)/85;
822

    
823
            if (!isRgb)
824
                j <<= 6;
825

    
826
            ((uint8_t *)table_b)[i] = j;
827
        }
828
        break;
829
    case 4:
830
    case 4|128:
831
        table_start= table_121 = av_malloc ((197 + 2*682 + 256 + 132) * sizeof (uint8_t));
832

    
833
        entry_size = sizeof (uint8_t);
834
        table_r = table_121 + 197;
835
        table_b = table_121 + 197 + 685;
836
        table_g = table_121 + 197 + 2*682;
837

    
838
        for (i = -197; i < 256+197; i++) {
839
            int j = table_Y[i+384 - 110] >> 7;
840

    
841
            if (isRgb)
842
                j <<= 3;
843

    
844
            ((uint8_t *)table_r)[i] = j;
845
        }
846
        for (i = -132; i < 256+132; i++) {
847
            int j = (table_Y[i+384 - 37]+ 43)/85;
848

    
849
            ((uint8_t *)table_g)[i] = j << 1;
850
        }
851
        for (i = -232; i < 256+232; i++) {
852
            int j =table_Y[i+384 - 110] >> 7;
853

    
854
            if (!isRgb)
855
                j <<= 3;
856

    
857
            ((uint8_t *)table_b)[i] = j;
858
        }
859
        break;
860

    
861
    case 1:
862
        table_start= table_1 = av_malloc (256*2 * sizeof (uint8_t));
863

    
864
        entry_size = sizeof (uint8_t);
865
        table_g = table_1;
866
        table_r = table_b = NULL;
867

    
868
        for (i = 0; i < 256+256; i++) {
869
            int j = table_Y[i + 384 - 110]>>7;
870

    
871
            ((uint8_t *)table_g)[i] = j;
872
        }
873
        break;
874

    
875
    default:
876
        table_start= NULL;
877
        av_log(c, AV_LOG_ERROR, "%ibpp not supported by yuv2rgb\n", bpp);
878
        //free mem?
879
        return -1;
880
    }
881

    
882
    for (i = 0; i < 256; i++) {
883
        c->table_rV[i] = (uint8_t *)table_r + entry_size * div_round (crv * (i-128), cy);
884
        c->table_gU[i] = (uint8_t *)table_g + entry_size * div_round (cgu * (i-128), cy);
885
        c->table_gV[i] = entry_size * div_round (cgv * (i-128), cy);
886
        c->table_bU[i] = (uint8_t *)table_b + entry_size * div_round (cbu * (i-128), cy);
887
    }
888

    
889
    av_free(c->yuvTable);
890
    c->yuvTable= table_start;
891
    return 0;
892
}