2 * software YUV to RGB converter
4 * Copyright (C) 2009 Konstantin Shishkov
6 * 1,4,8bpp support and context / deglobalize stuff
7 * by Michael Niedermayer (michaelni@gmx.at)
9 * This file is part of FFmpeg.
11 * FFmpeg is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Lesser General Public
13 * License as published by the Free Software Foundation; either
14 * version 2.1 of the License, or (at your option) any later version.
16 * FFmpeg is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * Lesser General Public License for more details.
21 * You should have received a copy of the GNU Lesser General Public
22 * License along with FFmpeg; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
34 #include "swscale_internal.h"
35 #include "libavutil/cpu.h"
36 #include "libavutil/bswap.h"
37 #include "libavutil/pixdesc.h"
39 extern const uint8_t dither_4x4_16[4][8];
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 const int32_t ff_yuv2rgb_coeffs[8][4] = {
45 {117504, 138453, 13954, 34903}, /* no sequence_display_extension */
46 {117504, 138453, 13954, 34903}, /* ITU-R Rec. 709 (1990) */
47 {104597, 132201, 25675, 53279}, /* unspecified */
48 {104597, 132201, 25675, 53279}, /* reserved */
49 {104448, 132798, 24759, 53109}, /* FCC */
50 {104597, 132201, 25675, 53279}, /* ITU-R Rec. 624-4 System B, G */
51 {104597, 132201, 25675, 53279}, /* SMPTE 170M */
52 {117579, 136230, 16907, 35559} /* SMPTE 240M (1987) */
55 const int *sws_getCoefficients(int colorspace)
57 if (colorspace > 7 || colorspace < 0)
58 colorspace = SWS_CS_DEFAULT;
59 return ff_yuv2rgb_coeffs[colorspace];
62 #define LOADCHROMA(i) \
65 r = (void *)c->table_rV[V]; \
66 g = (void *)(c->table_gU[U] + c->table_gV[V]); \
67 b = (void *)c->table_bU[U];
69 #define PUTRGB(dst,src,i) \
71 dst[2*i ] = r[Y] + g[Y] + b[Y]; \
73 dst[2*i+1] = r[Y] + g[Y] + b[Y];
75 #define PUTRGB24(dst,src,i) \
77 dst[6*i+0] = r[Y]; dst[6*i+1] = g[Y]; dst[6*i+2] = b[Y]; \
79 dst[6*i+3] = r[Y]; dst[6*i+4] = g[Y]; dst[6*i+5] = b[Y];
81 #define PUTBGR24(dst,src,i) \
83 dst[6*i+0] = b[Y]; dst[6*i+1] = g[Y]; dst[6*i+2] = r[Y]; \
85 dst[6*i+3] = b[Y]; dst[6*i+4] = g[Y]; dst[6*i+5] = r[Y];
87 #define PUTRGBA(dst,ysrc,asrc,i,s) \
89 dst[2*i ] = r[Y] + g[Y] + b[Y] + (asrc[2*i ]<<s); \
91 dst[2*i+1] = r[Y] + g[Y] + b[Y] + (asrc[2*i+1]<<s);
93 #define PUTRGB48(dst,src,i) \
95 dst[12*i+ 0] = dst[12*i+ 1] = r[Y]; \
96 dst[12*i+ 2] = dst[12*i+ 3] = g[Y]; \
97 dst[12*i+ 4] = dst[12*i+ 5] = b[Y]; \
99 dst[12*i+ 6] = dst[12*i+ 7] = r[Y]; \
100 dst[12*i+ 8] = dst[12*i+ 9] = g[Y]; \
101 dst[12*i+10] = dst[12*i+11] = b[Y];
103 #define PUTBGR48(dst,src,i) \
105 dst[12*i+ 0] = dst[12*i+ 1] = b[Y]; \
106 dst[12*i+ 2] = dst[12*i+ 3] = g[Y]; \
107 dst[12*i+ 4] = dst[12*i+ 5] = r[Y]; \
109 dst[12*i+ 6] = dst[12*i+ 7] = b[Y]; \
110 dst[12*i+ 8] = dst[12*i+ 9] = g[Y]; \
111 dst[12*i+10] = dst[12*i+11] = r[Y];
113 #define YUV2RGBFUNC(func_name, dst_type, alpha) \
114 static int func_name(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY, \
115 int srcSliceH, uint8_t* dst[], int dstStride[]) \
119 if (!alpha && c->srcFormat == PIX_FMT_YUV422P) {\
123 for (y=0; y<srcSliceH; y+=2) {\
124 dst_type *dst_1 = (dst_type*)(dst[0] + (y+srcSliceY )*dstStride[0]);\
125 dst_type *dst_2 = (dst_type*)(dst[0] + (y+srcSliceY+1)*dstStride[0]);\
126 dst_type av_unused *r, *b;\
128 const uint8_t *py_1 = src[0] + y*srcStride[0];\
129 const uint8_t *py_2 = py_1 + srcStride[0];\
130 const uint8_t *pu = src[1] + (y>>1)*srcStride[1];\
131 const uint8_t *pv = src[2] + (y>>1)*srcStride[2];\
132 const uint8_t av_unused *pa_1, *pa_2;\
133 unsigned int h_size = c->dstW>>3;\
135 pa_1 = src[3] + y*srcStride[3];\
136 pa_2 = pa_1 + srcStride[3];\
142 #define ENDYUV2RGBLINE(dst_delta)\
151 int av_unused Y, U, V;\
153 #define ENDYUV2RGBFUNC()\
159 #define CLOSEYUV2RGBFUNC(dst_delta)\
160 ENDYUV2RGBLINE(dst_delta)\
163 YUV2RGBFUNC(yuv2rgb_c_48, uint8_t, 0)
165 PUTRGB48(dst_1,py_1,0);
166 PUTRGB48(dst_2,py_2,0);
169 PUTRGB48(dst_2,py_2,1);
170 PUTRGB48(dst_1,py_1,1);
173 PUTRGB48(dst_1,py_1,2);
174 PUTRGB48(dst_2,py_2,2);
177 PUTRGB48(dst_2,py_2,3);
178 PUTRGB48(dst_1,py_1,3);
181 PUTRGB48(dst_1,py_1,0);
182 PUTRGB48(dst_2,py_2,0);
185 PUTRGB48(dst_2,py_2,1);
186 PUTRGB48(dst_1,py_1,1);
189 YUV2RGBFUNC(yuv2rgb_c_bgr48, uint8_t, 0)
191 PUTBGR48(dst_1,py_1,0);
192 PUTBGR48(dst_2,py_2,0);
195 PUTBGR48(dst_2,py_2,1);
196 PUTBGR48(dst_1,py_1,1);
199 PUTBGR48(dst_1,py_1,2);
200 PUTBGR48(dst_2,py_2,2);
203 PUTBGR48(dst_2,py_2,3);
204 PUTBGR48(dst_1,py_1,3);
207 PUTBGR48(dst_1,py_1,0);
208 PUTBGR48(dst_2,py_2,0);
211 PUTBGR48(dst_2,py_2,1);
212 PUTBGR48(dst_1,py_1,1);
215 YUV2RGBFUNC(yuv2rgb_c_32, uint32_t, 0)
217 PUTRGB(dst_1,py_1,0);
218 PUTRGB(dst_2,py_2,0);
221 PUTRGB(dst_2,py_2,1);
222 PUTRGB(dst_1,py_1,1);
225 PUTRGB(dst_1,py_1,2);
226 PUTRGB(dst_2,py_2,2);
229 PUTRGB(dst_2,py_2,3);
230 PUTRGB(dst_1,py_1,3);
233 PUTRGB(dst_1,py_1,0);
234 PUTRGB(dst_2,py_2,0);
237 PUTRGB(dst_2,py_2,1);
238 PUTRGB(dst_1,py_1,1);
241 YUV2RGBFUNC(yuva2rgba_c, uint32_t, 1)
243 PUTRGBA(dst_1,py_1,pa_1,0,24);
244 PUTRGBA(dst_2,py_2,pa_2,0,24);
247 PUTRGBA(dst_2,py_2,pa_1,1,24);
248 PUTRGBA(dst_1,py_1,pa_2,1,24);
251 PUTRGBA(dst_1,py_1,pa_1,2,24);
252 PUTRGBA(dst_2,py_2,pa_2,2,24);
255 PUTRGBA(dst_2,py_2,pa_1,3,24);
256 PUTRGBA(dst_1,py_1,pa_2,3,24);
261 PUTRGBA(dst_1,py_1,pa_1,0,24);
262 PUTRGBA(dst_2,py_2,pa_2,0,24);
265 PUTRGBA(dst_2,py_2,pa_1,1,24);
266 PUTRGBA(dst_1,py_1,pa_2,1,24);
269 YUV2RGBFUNC(yuva2argb_c, uint32_t, 1)
271 PUTRGBA(dst_1,py_1,pa_1,0,0);
272 PUTRGBA(dst_2,py_2,pa_2,0,0);
275 PUTRGBA(dst_2,py_2,pa_2,1,0);
276 PUTRGBA(dst_1,py_1,pa_1,1,0);
279 PUTRGBA(dst_1,py_1,pa_1,2,0);
280 PUTRGBA(dst_2,py_2,pa_2,2,0);
283 PUTRGBA(dst_2,py_2,pa_2,3,0);
284 PUTRGBA(dst_1,py_1,pa_1,3,0);
289 PUTRGBA(dst_1,py_1,pa_1,0,0);
290 PUTRGBA(dst_2,py_2,pa_2,0,0);
293 PUTRGBA(dst_2,py_2,pa_2,1,0);
294 PUTRGBA(dst_1,py_1,pa_1,1,0);
297 YUV2RGBFUNC(yuv2rgb_c_24_rgb, uint8_t, 0)
299 PUTRGB24(dst_1,py_1,0);
300 PUTRGB24(dst_2,py_2,0);
303 PUTRGB24(dst_2,py_2,1);
304 PUTRGB24(dst_1,py_1,1);
307 PUTRGB24(dst_1,py_1,2);
308 PUTRGB24(dst_2,py_2,2);
311 PUTRGB24(dst_2,py_2,3);
312 PUTRGB24(dst_1,py_1,3);
315 PUTRGB24(dst_1,py_1,0);
316 PUTRGB24(dst_2,py_2,0);
319 PUTRGB24(dst_2,py_2,1);
320 PUTRGB24(dst_1,py_1,1);
323 // only trivial mods from yuv2rgb_c_24_rgb
324 YUV2RGBFUNC(yuv2rgb_c_24_bgr, uint8_t, 0)
326 PUTBGR24(dst_1,py_1,0);
327 PUTBGR24(dst_2,py_2,0);
330 PUTBGR24(dst_2,py_2,1);
331 PUTBGR24(dst_1,py_1,1);
334 PUTBGR24(dst_1,py_1,2);
335 PUTBGR24(dst_2,py_2,2);
338 PUTBGR24(dst_2,py_2,3);
339 PUTBGR24(dst_1,py_1,3);
342 PUTBGR24(dst_1,py_1,0);
343 PUTBGR24(dst_2,py_2,0);
346 PUTBGR24(dst_2,py_2,1);
347 PUTBGR24(dst_1,py_1,1);
350 // This is exactly the same code as yuv2rgb_c_32 except for the types of
351 // r, g, b, dst_1, dst_2
352 YUV2RGBFUNC(yuv2rgb_c_16, uint16_t, 0)
354 PUTRGB(dst_1,py_1,0);
355 PUTRGB(dst_2,py_2,0);
358 PUTRGB(dst_2,py_2,1);
359 PUTRGB(dst_1,py_1,1);
362 PUTRGB(dst_1,py_1,2);
363 PUTRGB(dst_2,py_2,2);
366 PUTRGB(dst_2,py_2,3);
367 PUTRGB(dst_1,py_1,3);
370 // r, g, b, dst_1, dst_2
371 YUV2RGBFUNC(yuv2rgb_c_12_ordered_dither, uint16_t, 0)
372 const uint8_t *d16 = dither_4x4_16[y&3];
373 #define PUTRGB12(dst,src,i,o) \
375 dst[2*i] = r[Y+d16[0+o]] + g[Y+d16[0+o]] + b[Y+d16[0+o]]; \
377 dst[2*i+1] = r[Y+d16[1+o]] + g[Y+d16[1+o]] + b[Y+d16[1+o]];
380 PUTRGB12(dst_1,py_1,0,0);
381 PUTRGB12(dst_2,py_2,0,0+8);
384 PUTRGB12(dst_2,py_2,1,2+8);
385 PUTRGB12(dst_1,py_1,1,2);
388 PUTRGB12(dst_1,py_1,2,4);
389 PUTRGB12(dst_2,py_2,2,4+8);
392 PUTRGB12(dst_2,py_2,3,6+8);
393 PUTRGB12(dst_1,py_1,3,6);
396 // r, g, b, dst_1, dst_2
397 YUV2RGBFUNC(yuv2rgb_c_8_ordered_dither, uint8_t, 0)
398 const uint8_t *d32 = dither_8x8_32[y&7];
399 const uint8_t *d64 = dither_8x8_73[y&7];
400 #define PUTRGB8(dst,src,i,o) \
402 dst[2*i] = r[Y+d32[0+o]] + g[Y+d32[0+o]] + b[Y+d64[0+o]]; \
404 dst[2*i+1] = r[Y+d32[1+o]] + g[Y+d32[1+o]] + b[Y+d64[1+o]];
407 PUTRGB8(dst_1,py_1,0,0);
408 PUTRGB8(dst_2,py_2,0,0+8);
411 PUTRGB8(dst_2,py_2,1,2+8);
412 PUTRGB8(dst_1,py_1,1,2);
415 PUTRGB8(dst_1,py_1,2,4);
416 PUTRGB8(dst_2,py_2,2,4+8);
419 PUTRGB8(dst_2,py_2,3,6+8);
420 PUTRGB8(dst_1,py_1,3,6);
423 YUV2RGBFUNC(yuv2rgb_c_4_ordered_dither, uint8_t, 0)
424 const uint8_t *d64 = dither_8x8_73[y&7];
425 const uint8_t *d128 = dither_8x8_220[y&7];
428 #define PUTRGB4D(dst,src,i,o) \
430 acc = r[Y+d128[0+o]] + g[Y+d64[0+o]] + b[Y+d128[0+o]]; \
432 acc |= (r[Y+d128[1+o]] + g[Y+d64[1+o]] + b[Y+d128[1+o]])<<4; \
436 PUTRGB4D(dst_1,py_1,0,0);
437 PUTRGB4D(dst_2,py_2,0,0+8);
440 PUTRGB4D(dst_2,py_2,1,2+8);
441 PUTRGB4D(dst_1,py_1,1,2);
444 PUTRGB4D(dst_1,py_1,2,4);
445 PUTRGB4D(dst_2,py_2,2,4+8);
448 PUTRGB4D(dst_2,py_2,3,6+8);
449 PUTRGB4D(dst_1,py_1,3,6);
452 YUV2RGBFUNC(yuv2rgb_c_4b_ordered_dither, uint8_t, 0)
453 const uint8_t *d64 = dither_8x8_73[y&7];
454 const uint8_t *d128 = dither_8x8_220[y&7];
456 #define PUTRGB4DB(dst,src,i,o) \
458 dst[2*i] = r[Y+d128[0+o]] + g[Y+d64[0+o]] + b[Y+d128[0+o]]; \
460 dst[2*i+1] = r[Y+d128[1+o]] + g[Y+d64[1+o]] + b[Y+d128[1+o]];
463 PUTRGB4DB(dst_1,py_1,0,0);
464 PUTRGB4DB(dst_2,py_2,0,0+8);
467 PUTRGB4DB(dst_2,py_2,1,2+8);
468 PUTRGB4DB(dst_1,py_1,1,2);
471 PUTRGB4DB(dst_1,py_1,2,4);
472 PUTRGB4DB(dst_2,py_2,2,4+8);
475 PUTRGB4DB(dst_2,py_2,3,6+8);
476 PUTRGB4DB(dst_1,py_1,3,6);
479 YUV2RGBFUNC(yuv2rgb_c_1_ordered_dither, uint8_t, 0)
480 const uint8_t *d128 = dither_8x8_220[y&7];
481 char out_1 = 0, out_2 = 0;
482 g= c->table_gU[128] + c->table_gV[128];
484 #define PUTRGB1(out,src,i,o) \
486 out+= out + g[Y+d128[0+o]]; \
488 out+= out + g[Y+d128[1+o]];
490 PUTRGB1(out_1,py_1,0,0);
491 PUTRGB1(out_2,py_2,0,0+8);
493 PUTRGB1(out_2,py_2,1,2+8);
494 PUTRGB1(out_1,py_1,1,2);
496 PUTRGB1(out_1,py_1,2,4);
497 PUTRGB1(out_2,py_2,2,4+8);
499 PUTRGB1(out_2,py_2,3,6+8);
500 PUTRGB1(out_1,py_1,3,6);
506 SwsFunc ff_yuv2rgb_get_func_ptr(SwsContext *c)
511 t = ff_yuv2rgb_init_mmx(c);
512 } else if (HAVE_VIS) {
513 t = ff_yuv2rgb_init_vis(c);
514 } else if (CONFIG_MLIB) {
515 t = ff_yuv2rgb_init_mlib(c);
516 } else if (HAVE_ALTIVEC) {
517 t = ff_yuv2rgb_init_altivec(c);
518 } else if (ARCH_BFIN) {
519 t = ff_yuv2rgb_get_func_ptr_bfin(c);
525 av_log(c, AV_LOG_WARNING, "No accelerated colorspace conversion found from %s to %s.\n",
526 av_get_pix_fmt_name(c->srcFormat), av_get_pix_fmt_name(c->dstFormat));
528 switch (c->dstFormat) {
529 case PIX_FMT_BGR48BE:
530 case PIX_FMT_BGR48LE: return yuv2rgb_c_bgr48;
531 case PIX_FMT_RGB48BE:
532 case PIX_FMT_RGB48LE: return yuv2rgb_c_48;
534 case PIX_FMT_ABGR: if (CONFIG_SWSCALE_ALPHA && c->srcFormat == PIX_FMT_YUVA420P) return yuva2argb_c;
536 case PIX_FMT_BGRA: return (CONFIG_SWSCALE_ALPHA && c->srcFormat == PIX_FMT_YUVA420P) ? yuva2rgba_c : yuv2rgb_c_32;
537 case PIX_FMT_RGB24: return yuv2rgb_c_24_rgb;
538 case PIX_FMT_BGR24: return yuv2rgb_c_24_bgr;
542 case PIX_FMT_BGR555: return yuv2rgb_c_16;
544 case PIX_FMT_BGR444: return yuv2rgb_c_12_ordered_dither;
546 case PIX_FMT_BGR8: return yuv2rgb_c_8_ordered_dither;
548 case PIX_FMT_BGR4: return yuv2rgb_c_4_ordered_dither;
549 case PIX_FMT_RGB4_BYTE:
550 case PIX_FMT_BGR4_BYTE: return yuv2rgb_c_4b_ordered_dither;
551 case PIX_FMT_MONOBLACK: return yuv2rgb_c_1_ordered_dither;
558 static void fill_table(uint8_t* table[256], const int elemsize, const int inc, void *y_tab)
562 uint8_t *y_table = y_tab;
564 y_table -= elemsize * (inc >> 9);
566 for (i = 0; i < 256; i++) {
567 table[i] = y_table + elemsize * (cb >> 16);
572 static void fill_gv_table(int table[256], const int elemsize, const int inc)
576 int off = -(inc >> 9);
578 for (i = 0; i < 256; i++) {
579 table[i] = elemsize * (off + (cb >> 16));
584 static uint16_t roundToInt16(int64_t f)
586 int r= (f + (1<<15))>>16;
587 if (r<-0x7FFF) return 0x8000;
588 else if (r> 0x7FFF) return 0x7FFF;
592 av_cold int ff_yuv2rgb_c_init_tables(SwsContext *c, const int inv_table[4], int fullRange,
593 int brightness, int contrast, int saturation)
595 const int isRgb = c->dstFormat==PIX_FMT_RGB32
596 || c->dstFormat==PIX_FMT_RGB32_1
597 || c->dstFormat==PIX_FMT_BGR24
598 || c->dstFormat==PIX_FMT_RGB565BE
599 || c->dstFormat==PIX_FMT_RGB565LE
600 || c->dstFormat==PIX_FMT_RGB555BE
601 || c->dstFormat==PIX_FMT_RGB555LE
602 || c->dstFormat==PIX_FMT_RGB444BE
603 || c->dstFormat==PIX_FMT_RGB444LE
604 || c->dstFormat==PIX_FMT_RGB8
605 || c->dstFormat==PIX_FMT_RGB4
606 || c->dstFormat==PIX_FMT_RGB4_BYTE
607 || c->dstFormat==PIX_FMT_MONOBLACK;
608 const int isNotNe = c->dstFormat==PIX_FMT_NE(RGB565LE,RGB565BE)
609 || c->dstFormat==PIX_FMT_NE(RGB555LE,RGB555BE)
610 || c->dstFormat==PIX_FMT_NE(RGB444LE,RGB444BE)
611 || c->dstFormat==PIX_FMT_NE(BGR565LE,BGR565BE)
612 || c->dstFormat==PIX_FMT_NE(BGR555LE,BGR555BE)
613 || c->dstFormat==PIX_FMT_NE(BGR444LE,BGR444BE);
614 const int bpp = c->dstFormatBpp;
618 int i, base, rbase, gbase, bbase, av_uninit(abase), needAlpha;
619 const int yoffs = fullRange ? 384 : 326;
621 int64_t crv = inv_table[0];
622 int64_t cbu = inv_table[1];
623 int64_t cgu = -inv_table[2];
624 int64_t cgv = -inv_table[3];
634 crv = (crv*224) / 255;
635 cbu = (cbu*224) / 255;
636 cgu = (cgu*224) / 255;
637 cgv = (cgv*224) / 255;
640 cy = (cy *contrast ) >> 16;
641 crv = (crv*contrast * saturation) >> 32;
642 cbu = (cbu*contrast * saturation) >> 32;
643 cgu = (cgu*contrast * saturation) >> 32;
644 cgv = (cgv*contrast * saturation) >> 32;
645 oy -= 256*brightness;
647 c->uOffset= 0x0400040004000400LL;
648 c->vOffset= 0x0400040004000400LL;
649 c->yCoeff= roundToInt16(cy *8192) * 0x0001000100010001ULL;
650 c->vrCoeff= roundToInt16(crv*8192) * 0x0001000100010001ULL;
651 c->ubCoeff= roundToInt16(cbu*8192) * 0x0001000100010001ULL;
652 c->vgCoeff= roundToInt16(cgv*8192) * 0x0001000100010001ULL;
653 c->ugCoeff= roundToInt16(cgu*8192) * 0x0001000100010001ULL;
654 c->yOffset= roundToInt16(oy * 8) * 0x0001000100010001ULL;
656 c->yuv2rgb_y_coeff = (int16_t)roundToInt16(cy <<13);
657 c->yuv2rgb_y_offset = (int16_t)roundToInt16(oy << 9);
658 c->yuv2rgb_v2r_coeff= (int16_t)roundToInt16(crv<<13);
659 c->yuv2rgb_v2g_coeff= (int16_t)roundToInt16(cgv<<13);
660 c->yuv2rgb_u2g_coeff= (int16_t)roundToInt16(cgu<<13);
661 c->yuv2rgb_u2b_coeff= (int16_t)roundToInt16(cbu<<13);
663 //scale coefficients by cy
664 crv = ((crv << 16) + 0x8000) / cy;
665 cbu = ((cbu << 16) + 0x8000) / cy;
666 cgu = ((cgu << 16) + 0x8000) / cy;
667 cgv = ((cgv << 16) + 0x8000) / cy;
669 av_free(c->yuvTable);
673 c->yuvTable = av_malloc(1024);
674 y_table = c->yuvTable;
675 yb = -(384<<16) - oy;
676 for (i = 0; i < 1024-110; i++) {
677 y_table[i+110] = av_clip_uint8((yb + 0x8000) >> 16) >> 7;
680 fill_table(c->table_gU, 1, cgu, y_table + yoffs);
681 fill_gv_table(c->table_gV, 1, cgv);
685 rbase = isRgb ? 3 : 0;
687 bbase = isRgb ? 0 : 3;
688 c->yuvTable = av_malloc(1024*3);
689 y_table = c->yuvTable;
690 yb = -(384<<16) - oy;
691 for (i = 0; i < 1024-110; i++) {
692 int yval = av_clip_uint8((yb + 0x8000) >> 16);
693 y_table[i+110 ] = (yval >> 7) << rbase;
694 y_table[i+ 37+1024] = ((yval + 43) / 85) << gbase;
695 y_table[i+110+2048] = (yval >> 7) << bbase;
698 fill_table(c->table_rV, 1, crv, y_table + yoffs);
699 fill_table(c->table_gU, 1, cgu, y_table + yoffs + 1024);
700 fill_table(c->table_bU, 1, cbu, y_table + yoffs + 2048);
701 fill_gv_table(c->table_gV, 1, cgv);
704 rbase = isRgb ? 5 : 0;
705 gbase = isRgb ? 2 : 3;
706 bbase = isRgb ? 0 : 6;
707 c->yuvTable = av_malloc(1024*3);
708 y_table = c->yuvTable;
709 yb = -(384<<16) - oy;
710 for (i = 0; i < 1024-38; i++) {
711 int yval = av_clip_uint8((yb + 0x8000) >> 16);
712 y_table[i+16 ] = ((yval + 18) / 36) << rbase;
713 y_table[i+16+1024] = ((yval + 18) / 36) << gbase;
714 y_table[i+37+2048] = ((yval + 43) / 85) << bbase;
717 fill_table(c->table_rV, 1, crv, y_table + yoffs);
718 fill_table(c->table_gU, 1, cgu, y_table + yoffs + 1024);
719 fill_table(c->table_bU, 1, cbu, y_table + yoffs + 2048);
720 fill_gv_table(c->table_gV, 1, cgv);
723 rbase = isRgb ? 8 : 0;
725 bbase = isRgb ? 0 : 8;
726 c->yuvTable = av_malloc(1024*3*2);
727 y_table16 = c->yuvTable;
728 yb = -(384<<16) - oy;
729 for (i = 0; i < 1024; i++) {
730 uint8_t yval = av_clip_uint8((yb + 0x8000) >> 16);
731 y_table16[i ] = (yval >> 4) << rbase;
732 y_table16[i+1024] = (yval >> 4) << gbase;
733 y_table16[i+2048] = (yval >> 4) << bbase;
737 for (i = 0; i < 1024*3; i++)
738 y_table16[i] = av_bswap16(y_table16[i]);
739 fill_table(c->table_rV, 2, crv, y_table16 + yoffs);
740 fill_table(c->table_gU, 2, cgu, y_table16 + yoffs + 1024);
741 fill_table(c->table_bU, 2, cbu, y_table16 + yoffs + 2048);
742 fill_gv_table(c->table_gV, 2, cgv);
746 rbase = isRgb ? bpp - 5 : 0;
748 bbase = isRgb ? 0 : (bpp - 5);
749 c->yuvTable = av_malloc(1024*3*2);
750 y_table16 = c->yuvTable;
751 yb = -(384<<16) - oy;
752 for (i = 0; i < 1024; i++) {
753 uint8_t yval = av_clip_uint8((yb + 0x8000) >> 16);
754 y_table16[i ] = (yval >> 3) << rbase;
755 y_table16[i+1024] = (yval >> (18 - bpp)) << gbase;
756 y_table16[i+2048] = (yval >> 3) << bbase;
760 for (i = 0; i < 1024*3; i++)
761 y_table16[i] = av_bswap16(y_table16[i]);
762 fill_table(c->table_rV, 2, crv, y_table16 + yoffs);
763 fill_table(c->table_gU, 2, cgu, y_table16 + yoffs + 1024);
764 fill_table(c->table_bU, 2, cbu, y_table16 + yoffs + 2048);
765 fill_gv_table(c->table_gV, 2, cgv);
769 c->yuvTable = av_malloc(1024);
770 y_table = c->yuvTable;
771 yb = -(384<<16) - oy;
772 for (i = 0; i < 1024; i++) {
773 y_table[i] = av_clip_uint8((yb + 0x8000) >> 16);
776 fill_table(c->table_rV, 1, crv, y_table + yoffs);
777 fill_table(c->table_gU, 1, cgu, y_table + yoffs);
778 fill_table(c->table_bU, 1, cbu, y_table + yoffs);
779 fill_gv_table(c->table_gV, 1, cgv);
782 base = (c->dstFormat == PIX_FMT_RGB32_1 || c->dstFormat == PIX_FMT_BGR32_1) ? 8 : 0;
783 rbase = base + (isRgb ? 16 : 0);
785 bbase = base + (isRgb ? 0 : 16);
786 needAlpha = CONFIG_SWSCALE_ALPHA && isALPHA(c->srcFormat);
788 abase = (base + 24) & 31;
789 c->yuvTable = av_malloc(1024*3*4);
790 y_table32 = c->yuvTable;
791 yb = -(384<<16) - oy;
792 for (i = 0; i < 1024; i++) {
793 unsigned yval = av_clip_uint8((yb + 0x8000) >> 16);
794 y_table32[i ] = (yval << rbase) + (needAlpha ? 0 : (255u << abase));
795 y_table32[i+1024] = yval << gbase;
796 y_table32[i+2048] = yval << bbase;
799 fill_table(c->table_rV, 4, crv, y_table32 + yoffs);
800 fill_table(c->table_gU, 4, cgu, y_table32 + yoffs + 1024);
801 fill_table(c->table_bU, 4, cbu, y_table32 + yoffs + 2048);
802 fill_gv_table(c->table_gV, 4, cgv);
806 av_log(c, AV_LOG_ERROR, "%ibpp not supported by yuv2rgb\n", bpp);