2 * software YUV to RGB converter
4 * Copyright (C) 2009 Konstantin Shishkov
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)
10 * This file is part of FFmpeg.
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.
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.
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
35 #include "swscale_internal.h"
36 #include "libavutil/x86_cpu.h"
38 #define DITHER1XBPP // only for MMX
40 extern const uint8_t dither_8x8_32[8][8];
41 extern const uint8_t dither_8x8_73[8][8];
42 extern const uint8_t dither_8x8_220[8][8];
44 #if HAVE_MMX && CONFIG_GPL
46 /* hope these constant values are cache line aligned */
47 DECLARE_ASM_CONST(8, uint64_t, mmx_00ffw) = 0x00ff00ff00ff00ffULL;
48 DECLARE_ASM_CONST(8, uint64_t, mmx_redmask) = 0xf8f8f8f8f8f8f8f8ULL;
49 DECLARE_ASM_CONST(8, uint64_t, mmx_grnmask) = 0xfcfcfcfcfcfcfcfcULL;
56 #define HAVE_AMD3DNOW 0
57 #define RENAME(a) a ## _MMX
58 #include "yuv2rgb_template.c"
64 #define RENAME(a) a ## _MMX2
65 #include "yuv2rgb_template.c"
67 #endif /* HAVE_MMX && CONFIG_GPL */
69 const int32_t ff_yuv2rgb_coeffs[8][4] = {
70 {117504, 138453, 13954, 34903}, /* no sequence_display_extension */
71 {117504, 138453, 13954, 34903}, /* ITU-R Rec. 709 (1990) */
72 {104597, 132201, 25675, 53279}, /* unspecified */
73 {104597, 132201, 25675, 53279}, /* reserved */
74 {104448, 132798, 24759, 53109}, /* FCC */
75 {104597, 132201, 25675, 53279}, /* ITU-R Rec. 624-4 System B, G */
76 {104597, 132201, 25675, 53279}, /* SMPTE 170M */
77 {117579, 136230, 16907, 35559} /* SMPTE 240M (1987) */
80 #define LOADCHROMA(i) \
83 r = (void *)c->table_rV[V]; \
84 g = (void *)(c->table_gU[U] + c->table_gV[V]); \
85 b = (void *)c->table_bU[U];
87 #define PUTRGB(dst,src,i,o) \
89 dst[2*i ] = r[Y] + g[Y] + b[Y]; \
91 dst[2*i+1] = r[Y] + g[Y] + b[Y];
93 #define PUTRGB24(dst,src,i) \
95 dst[6*i+0] = r[Y]; dst[6*i+1] = g[Y]; dst[6*i+2] = b[Y]; \
97 dst[6*i+3] = r[Y]; dst[6*i+4] = g[Y]; dst[6*i+5] = b[Y];
99 #define PUTBGR24(dst,src,i) \
101 dst[6*i+0] = b[Y]; dst[6*i+1] = g[Y]; dst[6*i+2] = r[Y]; \
103 dst[6*i+3] = b[Y]; dst[6*i+4] = g[Y]; dst[6*i+5] = r[Y];
105 #define PUTRGBA(dst,ysrc,asrc,i,o,s) \
107 dst[2*i ] = r[Y] + g[Y] + b[Y] + (asrc[2*i ]<<s); \
109 dst[2*i+1] = r[Y] + g[Y] + b[Y] + (asrc[2*i+1]<<s);
111 #define YUV2RGBFUNC(func_name, dst_type, alpha) \
112 static int func_name(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY, \
113 int srcSliceH, uint8_t* dst[], int dstStride[]){\
116 if (!alpha && c->srcFormat == PIX_FMT_YUV422P) {\
120 for (y=0; y<srcSliceH; y+=2) {\
121 dst_type *dst_1 = (dst_type*)(dst[0] + (y+srcSliceY )*dstStride[0]);\
122 dst_type *dst_2 = (dst_type*)(dst[0] + (y+srcSliceY+1)*dstStride[0]);\
123 dst_type av_unused *r, *b;\
125 uint8_t *py_1 = src[0] + y*srcStride[0];\
126 uint8_t *py_2 = py_1 + srcStride[0];\
127 uint8_t *pu = src[1] + (y>>1)*srcStride[1];\
128 uint8_t *pv = src[2] + (y>>1)*srcStride[2];\
129 uint8_t av_unused *pa_1, *pa_2;\
130 unsigned int h_size = c->dstW>>3;\
132 pa_1 = src[3] + y*srcStride[3];\
133 pa_2 = pa_1 + srcStride[3];\
139 #define ENDYUV2RGBLINE(dst_delta)\
148 int av_unused Y, U, V;\
150 #define ENDYUV2RGBFUNC()\
156 #define CLOSEYUV2RGBFUNC(dst_delta)\
157 ENDYUV2RGBLINE(dst_delta)\
160 YUV2RGBFUNC(yuv2rgb_c_32, uint32_t, 0)
162 PUTRGB(dst_1,py_1,0,0);
163 PUTRGB(dst_2,py_2,0,1);
166 PUTRGB(dst_2,py_2,1,1);
167 PUTRGB(dst_1,py_1,1,0);
169 PUTRGB(dst_2,py_2,1,1);
170 PUTRGB(dst_1,py_1,1,0);
173 PUTRGB(dst_1,py_1,2,0);
174 PUTRGB(dst_2,py_2,2,1);
177 PUTRGB(dst_2,py_2,3,1);
178 PUTRGB(dst_1,py_1,3,0);
181 PUTRGB(dst_1,py_1,0,0);
182 PUTRGB(dst_2,py_2,0,1);
185 PUTRGB(dst_2,py_2,1,1);
186 PUTRGB(dst_1,py_1,1,0);
189 YUV2RGBFUNC(yuva2rgba_c, uint32_t, 1)
191 PUTRGBA(dst_1,py_1,pa_1,0,0,24);
192 PUTRGBA(dst_2,py_2,pa_2,0,1,24);
195 PUTRGBA(dst_2,py_2,pa_1,1,1,24);
196 PUTRGBA(dst_1,py_1,pa_2,1,0,24);
198 PUTRGBA(dst_2,py_2,pa_1,1,1,24);
199 PUTRGBA(dst_1,py_1,pa_2,1,0,24);
202 PUTRGBA(dst_1,py_1,pa_1,2,0,24);
203 PUTRGBA(dst_2,py_2,pa_2,2,1,24);
206 PUTRGBA(dst_2,py_2,pa_1,3,1,24);
207 PUTRGBA(dst_1,py_1,pa_2,3,0,24);
212 PUTRGBA(dst_1,py_1,pa_1,0,0,24);
213 PUTRGBA(dst_2,py_2,pa_2,0,1,24);
216 PUTRGBA(dst_2,py_2,pa_1,1,1,24);
217 PUTRGBA(dst_1,py_1,pa_2,1,0,24);
220 YUV2RGBFUNC(yuva2argb_c, uint32_t, 1)
222 PUTRGBA(dst_1,py_1,pa_1,0,0,0);
223 PUTRGBA(dst_2,py_2,pa_2,0,1,0);
226 PUTRGBA(dst_2,py_2,pa_2,1,1,0);
227 PUTRGBA(dst_1,py_1,pa_1,1,0,0);
229 PUTRGBA(dst_2,py_2,pa_2,1,1,0);
230 PUTRGBA(dst_1,py_1,pa_1,1,0,0);
233 PUTRGBA(dst_1,py_1,pa_1,2,0,0);
234 PUTRGBA(dst_2,py_2,pa_2,2,1,0);
237 PUTRGBA(dst_2,py_2,pa_2,3,1,0);
238 PUTRGBA(dst_1,py_1,pa_1,3,0,0);
243 PUTRGBA(dst_1,py_1,pa_1,0,0,0);
244 PUTRGBA(dst_2,py_2,pa_2,0,1,0);
247 PUTRGBA(dst_2,py_2,pa_2,1,1,0);
248 PUTRGBA(dst_1,py_1,pa_1,1,0,0);
251 YUV2RGBFUNC(yuv2rgb_c_24_rgb, uint8_t, 0)
253 PUTRGB24(dst_1,py_1,0);
254 PUTRGB24(dst_2,py_2,0);
257 PUTRGB24(dst_2,py_2,1);
258 PUTRGB24(dst_1,py_1,1);
261 PUTRGB24(dst_1,py_1,2);
262 PUTRGB24(dst_2,py_2,2);
265 PUTRGB24(dst_2,py_2,3);
266 PUTRGB24(dst_1,py_1,3);
269 PUTRGB24(dst_1,py_1,0);
270 PUTRGB24(dst_2,py_2,0);
273 PUTRGB24(dst_2,py_2,1);
274 PUTRGB24(dst_1,py_1,1);
277 // only trivial mods from yuv2rgb_c_24_rgb
278 YUV2RGBFUNC(yuv2rgb_c_24_bgr, uint8_t, 0)
280 PUTBGR24(dst_1,py_1,0);
281 PUTBGR24(dst_2,py_2,0);
284 PUTBGR24(dst_2,py_2,1);
285 PUTBGR24(dst_1,py_1,1);
288 PUTBGR24(dst_1,py_1,2);
289 PUTBGR24(dst_2,py_2,2);
292 PUTBGR24(dst_2,py_2,3);
293 PUTBGR24(dst_1,py_1,3);
296 PUTBGR24(dst_1,py_1,0);
297 PUTBGR24(dst_2,py_2,0);
300 PUTBGR24(dst_2,py_2,1);
301 PUTBGR24(dst_1,py_1,1);
304 // This is exactly the same code as yuv2rgb_c_32 except for the types of
305 // r, g, b, dst_1, dst_2
306 YUV2RGBFUNC(yuv2rgb_c_16, uint16_t, 0)
308 PUTRGB(dst_1,py_1,0,0);
309 PUTRGB(dst_2,py_2,0,1);
312 PUTRGB(dst_2,py_2,1,1);
313 PUTRGB(dst_1,py_1,1,0);
316 PUTRGB(dst_1,py_1,2,0);
317 PUTRGB(dst_2,py_2,2,1);
320 PUTRGB(dst_2,py_2,3,1);
321 PUTRGB(dst_1,py_1,3,0);
324 // This is exactly the same code as yuv2rgb_c_32 except for the types of
325 // r, g, b, dst_1, dst_2
326 YUV2RGBFUNC(yuv2rgb_c_8, uint8_t, 0)
328 PUTRGB(dst_1,py_1,0,0);
329 PUTRGB(dst_2,py_2,0,1);
332 PUTRGB(dst_2,py_2,1,1);
333 PUTRGB(dst_1,py_1,1,0);
336 PUTRGB(dst_1,py_1,2,0);
337 PUTRGB(dst_2,py_2,2,1);
340 PUTRGB(dst_2,py_2,3,1);
341 PUTRGB(dst_1,py_1,3,0);
344 // r, g, b, dst_1, dst_2
345 YUV2RGBFUNC(yuv2rgb_c_8_ordered_dither, uint8_t, 0)
346 const uint8_t *d32 = dither_8x8_32[y&7];
347 const uint8_t *d64 = dither_8x8_73[y&7];
348 #define PUTRGB8(dst,src,i,o) \
350 dst[2*i] = r[Y+d32[0+o]] + g[Y+d32[0+o]] + b[Y+d64[0+o]]; \
352 dst[2*i+1] = r[Y+d32[1+o]] + g[Y+d32[1+o]] + b[Y+d64[1+o]];
355 PUTRGB8(dst_1,py_1,0,0);
356 PUTRGB8(dst_2,py_2,0,0+8);
359 PUTRGB8(dst_2,py_2,1,2+8);
360 PUTRGB8(dst_1,py_1,1,2);
363 PUTRGB8(dst_1,py_1,2,4);
364 PUTRGB8(dst_2,py_2,2,4+8);
367 PUTRGB8(dst_2,py_2,3,6+8);
368 PUTRGB8(dst_1,py_1,3,6);
372 // This is exactly the same code as yuv2rgb_c_32 except for the types of
373 // r, g, b, dst_1, dst_2
374 YUV2RGBFUNC(yuv2rgb_c_4, uint8_t, 0)
376 #define PUTRGB4(dst,src,i) \
378 acc = r[Y] + g[Y] + b[Y]; \
380 acc |= (r[Y] + g[Y] + b[Y])<<4; \
384 PUTRGB4(dst_1,py_1,0);
385 PUTRGB4(dst_2,py_2,0);
388 PUTRGB4(dst_2,py_2,1);
389 PUTRGB4(dst_1,py_1,1);
392 PUTRGB4(dst_1,py_1,2);
393 PUTRGB4(dst_2,py_2,2);
396 PUTRGB4(dst_2,py_2,3);
397 PUTRGB4(dst_1,py_1,3);
400 YUV2RGBFUNC(yuv2rgb_c_4_ordered_dither, uint8_t, 0)
401 const uint8_t *d64 = dither_8x8_73[y&7];
402 const uint8_t *d128 = dither_8x8_220[y&7];
405 #define PUTRGB4D(dst,src,i,o) \
407 acc = r[Y+d128[0+o]] + g[Y+d64[0+o]] + b[Y+d128[0+o]]; \
409 acc |= (r[Y+d128[1+o]] + g[Y+d64[1+o]] + b[Y+d128[1+o]])<<4; \
413 PUTRGB4D(dst_1,py_1,0,0);
414 PUTRGB4D(dst_2,py_2,0,0+8);
417 PUTRGB4D(dst_2,py_2,1,2+8);
418 PUTRGB4D(dst_1,py_1,1,2);
421 PUTRGB4D(dst_1,py_1,2,4);
422 PUTRGB4D(dst_2,py_2,2,4+8);
425 PUTRGB4D(dst_2,py_2,3,6+8);
426 PUTRGB4D(dst_1,py_1,3,6);
429 // This is exactly the same code as yuv2rgb_c_32 except for the types of
430 // r, g, b, dst_1, dst_2
431 YUV2RGBFUNC(yuv2rgb_c_4b, uint8_t, 0)
433 PUTRGB(dst_1,py_1,0,0);
434 PUTRGB(dst_2,py_2,0,1);
437 PUTRGB(dst_2,py_2,1,1);
438 PUTRGB(dst_1,py_1,1,0);
441 PUTRGB(dst_1,py_1,2,0);
442 PUTRGB(dst_2,py_2,2,1);
445 PUTRGB(dst_2,py_2,3,1);
446 PUTRGB(dst_1,py_1,3,0);
449 YUV2RGBFUNC(yuv2rgb_c_4b_ordered_dither, uint8_t, 0)
450 const uint8_t *d64 = dither_8x8_73[y&7];
451 const uint8_t *d128 = dither_8x8_220[y&7];
453 #define PUTRGB4DB(dst,src,i,o) \
455 dst[2*i] = r[Y+d128[0+o]] + g[Y+d64[0+o]] + b[Y+d128[0+o]]; \
457 dst[2*i+1] = r[Y+d128[1+o]] + g[Y+d64[1+o]] + b[Y+d128[1+o]];
460 PUTRGB4DB(dst_1,py_1,0,0);
461 PUTRGB4DB(dst_2,py_2,0,0+8);
464 PUTRGB4DB(dst_2,py_2,1,2+8);
465 PUTRGB4DB(dst_1,py_1,1,2);
468 PUTRGB4DB(dst_1,py_1,2,4);
469 PUTRGB4DB(dst_2,py_2,2,4+8);
472 PUTRGB4DB(dst_2,py_2,3,6+8);
473 PUTRGB4DB(dst_1,py_1,3,6);
476 YUV2RGBFUNC(yuv2rgb_c_1_ordered_dither, uint8_t, 0)
477 const uint8_t *d128 = dither_8x8_220[y&7];
478 char out_1 = 0, out_2 = 0;
479 g= c->table_gU[128] + c->table_gV[128];
481 #define PUTRGB1(out,src,i,o) \
483 out+= out + g[Y+d128[0+o]]; \
485 out+= out + g[Y+d128[1+o]];
487 PUTRGB1(out_1,py_1,0,0);
488 PUTRGB1(out_2,py_2,0,0+8);
490 PUTRGB1(out_2,py_2,1,2+8);
491 PUTRGB1(out_1,py_1,1,2);
493 PUTRGB1(out_1,py_1,2,4);
494 PUTRGB1(out_2,py_2,2,4+8);
496 PUTRGB1(out_2,py_2,3,6+8);
497 PUTRGB1(out_1,py_1,3,6);
503 SwsFunc ff_yuv2rgb_get_func_ptr(SwsContext *c)
506 #if (HAVE_MMX2 || HAVE_MMX) && CONFIG_GPL
507 if (c->flags & SWS_CPU_CAPS_MMX2) {
508 switch (c->dstFormat) {
510 if (CONFIG_SWSCALE_ALPHA && c->srcFormat == PIX_FMT_YUVA420P){
511 if (HAVE_7REGS) return yuva420_rgb32_MMX2;
512 }else return yuv420_rgb32_MMX2;
513 case PIX_FMT_BGR24: return yuv420_rgb24_MMX2;
514 case PIX_FMT_RGB565: return yuv420_rgb16_MMX2;
515 case PIX_FMT_RGB555: return yuv420_rgb15_MMX2;
518 if (c->flags & SWS_CPU_CAPS_MMX) {
519 switch (c->dstFormat) {
521 if (CONFIG_SWSCALE_ALPHA && c->srcFormat == PIX_FMT_YUVA420P){
522 if (HAVE_7REGS) return yuva420_rgb32_MMX;
523 }else return yuv420_rgb32_MMX;
524 case PIX_FMT_BGR24: return yuv420_rgb24_MMX;
525 case PIX_FMT_RGB565: return yuv420_rgb16_MMX;
526 case PIX_FMT_RGB555: return yuv420_rgb15_MMX;
531 t = ff_yuv2rgb_init_vis(c);
534 t = ff_yuv2rgb_init_mlib(c);
536 #if HAVE_ALTIVEC && CONFIG_GPL
537 if (c->flags & SWS_CPU_CAPS_ALTIVEC)
538 t = ff_yuv2rgb_init_altivec(c);
542 if (c->flags & SWS_CPU_CAPS_BFIN)
543 t = ff_yuv2rgb_get_func_ptr_bfin(c);
549 av_log(c, AV_LOG_WARNING, "No accelerated colorspace conversion found.\n");
551 switch (c->dstFormat) {
553 case PIX_FMT_ABGR: if (CONFIG_SWSCALE_ALPHA && c->srcFormat == PIX_FMT_YUVA420P) return yuva2argb_c;
555 case PIX_FMT_BGRA: return (CONFIG_SWSCALE_ALPHA && c->srcFormat == PIX_FMT_YUVA420P) ? yuva2rgba_c : yuv2rgb_c_32;
556 case PIX_FMT_RGB24: return yuv2rgb_c_24_rgb;
557 case PIX_FMT_BGR24: return yuv2rgb_c_24_bgr;
561 case PIX_FMT_BGR555: return yuv2rgb_c_16;
563 case PIX_FMT_BGR8: return yuv2rgb_c_8_ordered_dither;
565 case PIX_FMT_BGR4: return yuv2rgb_c_4_ordered_dither;
566 case PIX_FMT_RGB4_BYTE:
567 case PIX_FMT_BGR4_BYTE: return yuv2rgb_c_4b_ordered_dither;
568 case PIX_FMT_MONOBLACK: return yuv2rgb_c_1_ordered_dither;
575 static void fill_table(uint8_t* table[256], const int elemsize, const int inc, uint8_t *y_table)
580 y_table -= elemsize * (inc >> 9);
582 for (i = 0; i < 256; i++) {
583 table[i] = y_table + elemsize * (cb >> 16);
588 static void fill_gv_table(int table[256], const int elemsize, const int inc)
592 int off = -(inc >> 9);
594 for (i = 0; i < 256; i++) {
595 table[i] = elemsize * (off + (cb >> 16));
600 av_cold int ff_yuv2rgb_c_init_tables(SwsContext *c, const int inv_table[4], int fullRange,
601 int brightness, int contrast, int saturation)
603 const int isRgb = c->dstFormat==PIX_FMT_RGB32
604 || c->dstFormat==PIX_FMT_RGB32_1
605 || c->dstFormat==PIX_FMT_BGR24
606 || c->dstFormat==PIX_FMT_RGB565
607 || c->dstFormat==PIX_FMT_RGB555
608 || c->dstFormat==PIX_FMT_RGB8
609 || c->dstFormat==PIX_FMT_RGB4
610 || c->dstFormat==PIX_FMT_RGB4_BYTE
611 || c->dstFormat==PIX_FMT_MONOBLACK;
612 const int bpp = fmt_depth(c->dstFormat);
616 int i, base, rbase, gbase, bbase, abase, needAlpha;
617 const int yoffs = fullRange ? 384 : 326;
619 int64_t crv = inv_table[0];
620 int64_t cbu = inv_table[1];
621 int64_t cgu = -inv_table[2];
622 int64_t cgv = -inv_table[3];
632 crv = (crv*224) / 255;
633 cbu = (cbu*224) / 255;
634 cgu = (cgu*224) / 255;
635 cgv = (cgv*224) / 255;
638 cy = (cy *contrast ) >> 16;
639 crv = (crv*contrast * saturation) >> 32;
640 cbu = (cbu*contrast * saturation) >> 32;
641 cgu = (cgu*contrast * saturation) >> 32;
642 cgv = (cgv*contrast * saturation) >> 32;
643 oy -= 256*brightness;
645 //scale coefficients by cy
646 crv = ((crv << 16) + 0x8000) / cy;
647 cbu = ((cbu << 16) + 0x8000) / cy;
648 cgu = ((cgu << 16) + 0x8000) / cy;
649 cgv = ((cgv << 16) + 0x8000) / cy;
651 av_free(c->yuvTable);
655 c->yuvTable = av_malloc(1024);
656 y_table = c->yuvTable;
657 yb = -(384<<16) - oy;
658 for (i = 0; i < 1024-110; i++) {
659 y_table[i+110] = av_clip_uint8((yb + 0x8000) >> 16) >> 7;
662 fill_table(c->table_gU, 1, cgu, y_table + yoffs);
663 fill_gv_table(c->table_gV, 1, cgv);
667 rbase = isRgb ? 3 : 0;
669 bbase = isRgb ? 0 : 3;
670 c->yuvTable = av_malloc(1024*3);
671 y_table = c->yuvTable;
672 yb = -(384<<16) - oy;
673 for (i = 0; i < 1024-110; i++) {
674 int yval = av_clip_uint8((yb + 0x8000) >> 16);
675 y_table[i+110 ] = (yval >> 7) << rbase;
676 y_table[i+ 37+1024] = ((yval + 43) / 85) << gbase;
677 y_table[i+110+2048] = (yval >> 7) << bbase;
680 fill_table(c->table_rV, 1, crv, y_table + yoffs);
681 fill_table(c->table_gU, 1, cgu, y_table + yoffs + 1024);
682 fill_table(c->table_bU, 1, cbu, y_table + yoffs + 2048);
683 fill_gv_table(c->table_gV, 1, cgv);
686 rbase = isRgb ? 5 : 0;
687 gbase = isRgb ? 2 : 3;
688 bbase = isRgb ? 0 : 6;
689 c->yuvTable = av_malloc(1024*3);
690 y_table = c->yuvTable;
691 yb = -(384<<16) - oy;
692 for (i = 0; i < 1024-38; i++) {
693 int yval = av_clip_uint8((yb + 0x8000) >> 16);
694 y_table[i+16 ] = ((yval + 18) / 36) << rbase;
695 y_table[i+16+1024] = ((yval + 18) / 36) << gbase;
696 y_table[i+37+2048] = ((yval + 43) / 85) << bbase;
699 fill_table(c->table_rV, 1, crv, y_table + yoffs);
700 fill_table(c->table_gU, 1, cgu, y_table + yoffs + 1024);
701 fill_table(c->table_bU, 1, cbu, y_table + yoffs + 2048);
702 fill_gv_table(c->table_gV, 1, cgv);
706 rbase = isRgb ? bpp - 5 : 0;
708 bbase = isRgb ? 0 : (bpp - 5);
709 c->yuvTable = av_malloc(1024*3*2);
710 y_table16 = c->yuvTable;
711 yb = -(384<<16) - oy;
712 for (i = 0; i < 1024; i++) {
713 uint8_t yval = av_clip_uint8((yb + 0x8000) >> 16);
714 y_table16[i ] = (yval >> 3) << rbase;
715 y_table16[i+1024] = (yval >> (18 - bpp)) << gbase;
716 y_table16[i+2048] = (yval >> 3) << bbase;
719 fill_table(c->table_rV, 2, crv, y_table16 + yoffs);
720 fill_table(c->table_gU, 2, cgu, y_table16 + yoffs + 1024);
721 fill_table(c->table_bU, 2, cbu, y_table16 + yoffs + 2048);
722 fill_gv_table(c->table_gV, 2, cgv);
725 c->yuvTable = av_malloc(1024);
726 y_table = c->yuvTable;
727 yb = -(384<<16) - oy;
728 for (i = 0; i < 1024; i++) {
729 y_table[i] = av_clip_uint8((yb + 0x8000) >> 16);
732 fill_table(c->table_rV, 1, crv, y_table + yoffs);
733 fill_table(c->table_gU, 1, cgu, y_table + yoffs);
734 fill_table(c->table_bU, 1, cbu, y_table + yoffs);
735 fill_gv_table(c->table_gV, 1, cgv);
738 base = (c->dstFormat == PIX_FMT_RGB32_1 || c->dstFormat == PIX_FMT_BGR32_1) ? 8 : 0;
739 rbase = base + (isRgb ? 16 : 0);
741 bbase = base + (isRgb ? 0 : 16);
742 needAlpha = CONFIG_SWSCALE_ALPHA && isALPHA(c->srcFormat);
744 abase = (base + 24) & 31;
745 c->yuvTable = av_malloc(1024*3*4);
746 y_table32 = c->yuvTable;
747 yb = -(384<<16) - oy;
748 for (i = 0; i < 1024; i++) {
749 uint8_t yval = av_clip_uint8((yb + 0x8000) >> 16);
750 y_table32[i ] = (yval << rbase) + (needAlpha ? 0 : (255 << abase));
751 y_table32[i+1024] = yval << gbase;
752 y_table32[i+2048] = yval << bbase;
755 fill_table(c->table_rV, 4, crv, y_table32 + yoffs);
756 fill_table(c->table_gU, 4, cgu, y_table32 + yoffs + 1024);
757 fill_table(c->table_bU, 4, cbu, y_table32 + yoffs + 2048);
758 fill_gv_table(c->table_gV, 4, cgv);
762 av_log(c, AV_LOG_ERROR, "%ibpp not supported by yuv2rgb\n", bpp);