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FFmpeg/postproc/yuv2rgb.c

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  1. /*

  2.  * yuv2rgb.c, Software YUV to RGB coverter

  3.  *

  4.  *  Copyright (C) 1999, Aaron Holtzman <aholtzma@ess.engr.uvic.ca>

  5.  *  All Rights Reserved.

  6.  *

  7.  *  Functions broken out from display_x11.c and several new modes

  8.  *  added by Håkan Hjort <d95hjort@dtek.chalmers.se>

  9.  *

  10.  *  15 & 16 bpp support by Franck Sicard <Franck.Sicard@solsoft.fr>

  11.  *

  12.  *  This file is part of mpeg2dec, a free MPEG-2 video decoder

  13.  *

  14.  *  mpeg2dec is free software; you can redistribute it and/or modify

  15.  *  it under the terms of the GNU General Public License as published by

  16.  *  the Free Software Foundation; either version 2, or (at your option)

  17.  *  any later version.

  18.  *

  19.  *  mpeg2dec is distributed in the hope that it will be useful,

  20.  *  but WITHOUT ANY WARRANTY; without even the implied warranty of

  21.  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

  22.  *  GNU General Public License for more details.

  23.  *

  24.  *  You should have received a copy of the GNU General Public License

  25.  *  along with GNU Make; see the file COPYING.  If not, write to

  26.  *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.

  27.  *

  28.  * MMX/MMX2 Template stuff from Michael Niedermayer (michaelni@gmx.at) (needed for fast movntq support)

  29.  * 1,4,8bpp support by Michael Niedermayer (michaelni@gmx.at)

  30.  * context / deglobalize stuff by Michael Niedermayer

  31.  */

  32. 

  33. #include <stdio.h>

  34. #include <stdlib.h>

  35. #include <inttypes.h>

  36. #include <assert.h>

  37. 

  38. #include "config.h"

  39. //#include "video_out.h"

  40. #include "rgb2rgb.h"

  41. #include "swscale.h"

  42. #include "swscale_internal.h"

  43. #include "../mangle.h"

  44. #include "../libvo/img_format.h" //FIXME try to reduce dependency of such stuff

  45. 

  46. #ifdef HAVE_MLIB

  47. #include "yuv2rgb_mlib.c"

  48. #endif

  49. 

  50. #define DITHER1XBPP // only for mmx

  51. 

  52. const uint8_t  __attribute__((aligned(8))) dither_2x2_4[2][8]={

  53. {  1,   3,   1,   3,   1,   3,   1,   3, },

  54. {  2,   0,   2,   0,   2,   0,   2,   0, },

  55. };

  56. 

  57. const uint8_t  __attribute__((aligned(8))) dither_2x2_8[2][8]={

  58. {  6,   2,   6,   2,   6,   2,   6,   2, },

  59. {  0,   4,   0,   4,   0,   4,   0,   4, },

  60. };

  61. 

  62. const uint8_t  __attribute__((aligned(8))) dither_8x8_32[8][8]={

  63. { 17,   9,  23,  15,  16,   8,  22,  14, },

  64. {  5,  29,   3,  27,   4,  28,   2,  26, },

  65. { 21,  13,  19,  11,  20,  12,  18,  10, },

  66. {  0,  24,   6,  30,   1,  25,   7,  31, },

  67. { 16,   8,  22,  14,  17,   9,  23,  15, },

  68. {  4,  28,   2,  26,   5,  29,   3,  27, },

  69. { 20,  12,  18,  10,  21,  13,  19,  11, },

  70. {  1,  25,   7,  31,   0,  24,   6,  30, },

  71. };

  72. 

  73. #if 0

  74. const uint8_t  __attribute__((aligned(8))) dither_8x8_64[8][8]={

  75. {  0,  48,  12,  60,   3,  51,  15,  63, },

  76. { 32,  16,  44,  28,  35,  19,  47,  31, },

  77. {  8,  56,   4,  52,  11,  59,   7,  55, },

  78. { 40,  24,  36,  20,  43,  27,  39,  23, },

  79. {  2,  50,  14,  62,   1,  49,  13,  61, },

  80. { 34,  18,  46,  30,  33,  17,  45,  29, },

  81. { 10,  58,   6,  54,   9,  57,   5,  53, },

  82. { 42,  26,  38,  22,  41,  25,  37,  21, },

  83. };

  84. #endif

  85. 

  86. const uint8_t  __attribute__((aligned(8))) dither_8x8_73[8][8]={

  87. {  0,  55,  14,  68,   3,  58,  17,  72, },

  88. { 37,  18,  50,  32,  40,  22,  54,  35, },

  89. {  9,  64,   5,  59,  13,  67,   8,  63, },

  90. { 46,  27,  41,  23,  49,  31,  44,  26, },

  91. {  2,  57,  16,  71,   1,  56,  15,  70, },

  92. { 39,  21,  52,  34,  38,  19,  51,  33, },

  93. { 11,  66,   7,  62,  10,  65,   6,  60, },

  94. { 48,  30,  43,  25,  47,  29,  42,  24, },

  95. };

  96. 

  97. #if 0

  98. const uint8_t  __attribute__((aligned(8))) dither_8x8_128[8][8]={

  99. { 68,  36,  92,  60,  66,  34,  90,  58, },

  100. { 20, 116,  12, 108,  18, 114,  10, 106, },

  101. { 84,  52,  76,  44,  82,  50,  74,  42, },

  102. {  0,  96,  24, 120,   6, 102,  30, 126, },

  103. { 64,  32,  88,  56,  70,  38,  94,  62, },

  104. { 16, 112,   8, 104,  22, 118,  14, 110, },

  105. { 80,  48,  72,  40,  86,  54,  78,  46, },

  106. {  4, 100,  28, 124,   2,  98,  26, 122, },

  107. };

  108. #endif

  109. 

  110. #if 1

  111. const uint8_t  __attribute__((aligned(8))) dither_8x8_220[8][8]={

  112. {117,  62, 158, 103, 113,  58, 155, 100, },

  113. { 34, 199,  21, 186,  31, 196,  17, 182, },

  114. {144,  89, 131,  76, 141,  86, 127,  72, },

  115. {  0, 165,  41, 206,  10, 175,  52, 217, },

  116. {110,  55, 151,  96, 120,  65, 162, 107, },

  117. { 28, 193,  14, 179,  38, 203,  24, 189, },

  118. {138,  83, 124,  69, 148,  93, 134,  79, },

  119. {  7, 172,  48, 213,   3, 168,  45, 210, },

  120. };

  121. #elif 1

  122. // tries to correct a gamma of 1.5

  123. const uint8_t  __attribute__((aligned(8))) dither_8x8_220[8][8]={

  124. {  0, 143,  18, 200,   2, 156,  25, 215, },

  125. { 78,  28, 125,  64,  89,  36, 138,  74, },

  126. { 10, 180,   3, 161,  16, 195,   8, 175, },

  127. {109,  51,  93,  38, 121,  60, 105,  47, },

  128. {  1, 152,  23, 210,   0, 147,  20, 205, },

  129. { 85,  33, 134,  71,  81,  30, 130,  67, },

  130. { 14, 190,   6, 171,  12, 185,   5, 166, },

  131. {117,  57, 101,  44, 113,  54,  97,  41, },

  132. };

  133. #elif 1

  134. // tries to correct a gamma of 2.0

  135. const uint8_t  __attribute__((aligned(8))) dither_8x8_220[8][8]={

  136. {  0, 124,   8, 193,   0, 140,  12, 213, },

  137. { 55,  14, 104,  42,  66,  19, 119,  52, },

  138. {  3, 168,   1, 145,   6, 187,   3, 162, },

  139. { 86,  31,  70,  21,  99,  39,  82,  28, },

  140. {  0, 134,  11, 206,   0, 129,   9, 200, },

  141. { 62,  17, 114,  48,  58,  16, 109,  45, },

  142. {  5, 181,   2, 157,   4, 175,   1, 151, },

  143. { 95,  36,  78,  26,  90,  34,  74,  24, },

  144. };

  145. #else

  146. // tries to correct a gamma of 2.5

  147. const uint8_t  __attribute__((aligned(8))) dither_8x8_220[8][8]={

  148. {  0, 107,   3, 187,   0, 125,   6, 212, },

  149. { 39,   7,  86,  28,  49,  11, 102,  36, },

  150. {  1, 158,   0, 131,   3, 180,   1, 151, },

  151. { 68,  19,  52,  12,  81,  25,  64,  17, },

  152. {  0, 119,   5, 203,   0, 113,   4, 195, },

  153. { 45,   9,  96,  33,  42,   8,  91,  30, },

  154. {  2, 172,   1, 144,   2, 165,   0, 137, },

  155. { 77,  23,  60,  15,  72,  21,  56,  14, },

  156. };

  157. #endif

  158. 

  159. #ifdef ARCH_X86

  160. 

  161. /* hope these constant values are cache line aligned */

  162. uint64_t attribute_used __attribute__((aligned(8))) mmx_00ffw = 0x00ff00ff00ff00ffULL;

  163. uint64_t attribute_used __attribute__((aligned(8))) mmx_redmask = 0xf8f8f8f8f8f8f8f8ULL;

  164. uint64_t attribute_used __attribute__((aligned(8))) mmx_grnmask = 0xfcfcfcfcfcfcfcfcULL;

  165. 

  166. uint64_t attribute_used __attribute__((aligned(8))) M24A=   0x00FF0000FF0000FFULL;

  167. uint64_t attribute_used __attribute__((aligned(8))) M24B=   0xFF0000FF0000FF00ULL;

  168. uint64_t attribute_used __attribute__((aligned(8))) M24C=   0x0000FF0000FF0000ULL;

  169. 

  170. // the volatile is required because gcc otherwise optimizes some writes away not knowing that these

  171. // are read in the asm block

  172. volatile uint64_t attribute_used __attribute__((aligned(8))) b5Dither;

  173. volatile uint64_t attribute_used __attribute__((aligned(8))) g5Dither;

  174. volatile uint64_t attribute_used __attribute__((aligned(8))) g6Dither;

  175. volatile uint64_t attribute_used __attribute__((aligned(8))) r5Dither;

  176. 

  177. uint64_t __attribute__((aligned(8))) dither4[2]={

  178. 	0x0103010301030103LL,

  179. 	0x0200020002000200LL,};

  180. 

  181. uint64_t __attribute__((aligned(8))) dither8[2]={

  182. 	0x0602060206020602LL,

  183. 	0x0004000400040004LL,};

  184. 

  185. #undef HAVE_MMX

  186. #undef ARCH_X86

  187. 

  188. //MMX versions

  189. #undef RENAME

  190. #define HAVE_MMX

  191. #undef HAVE_MMX2

  192. #undef HAVE_3DNOW

  193. #define ARCH_X86

  194. #define RENAME(a) a ## _MMX

  195. #include "yuv2rgb_template.c"

  196. 

  197. //MMX2 versions

  198. #undef RENAME

  199. #define HAVE_MMX

  200. #define HAVE_MMX2

  201. #undef HAVE_3DNOW

  202. #define ARCH_X86

  203. #define RENAME(a) a ## _MMX2

  204. #include "yuv2rgb_template.c"

  205. 

  206. #endif // CAN_COMPILE_X86_ASM

  207. 

  208. const int32_t Inverse_Table_6_9[8][4] = {

  209.     {117504, 138453, 13954, 34903}, /* no sequence_display_extension */

  210.     {117504, 138453, 13954, 34903}, /* ITU-R Rec. 709 (1990) */

  211.     {104597, 132201, 25675, 53279}, /* unspecified */

  212.     {104597, 132201, 25675, 53279}, /* reserved */

  213.     {104448, 132798, 24759, 53109}, /* FCC */

  214.     {104597, 132201, 25675, 53279}, /* ITU-R Rec. 624-4 System B, G */

  215.     {104597, 132201, 25675, 53279}, /* SMPTE 170M */

  216.     {117579, 136230, 16907, 35559}  /* SMPTE 240M (1987) */

  217. };

  218. 

  219. #define RGB(i)					\

  220. 	U = pu[i];				\

  221. 	V = pv[i];				\

  222. 	r = c->table_rV[V];			\

  223. 	g = c->table_gU[U] + c->table_gV[V];		\

  224. 	b = c->table_bU[U];

  225. 

  226. #define DST1(i)					\

  227. 	Y = py_1[2*i];				\

  228. 	dst_1[2*i] = r[Y] + g[Y] + b[Y];	\

  229. 	Y = py_1[2*i+1];			\

  230. 	dst_1[2*i+1] = r[Y] + g[Y] + b[Y];

  231. 

  232. #define DST2(i)					\

  233. 	Y = py_2[2*i];				\

  234. 	dst_2[2*i] = r[Y] + g[Y] + b[Y];	\

  235. 	Y = py_2[2*i+1];			\

  236. 	dst_2[2*i+1] = r[Y] + g[Y] + b[Y];

  237. 

  238. #define DST1RGB(i)							\

  239. 	Y = py_1[2*i];							\

  240. 	dst_1[6*i] = r[Y]; dst_1[6*i+1] = g[Y]; dst_1[6*i+2] = b[Y];	\

  241. 	Y = py_1[2*i+1];						\

  242. 	dst_1[6*i+3] = r[Y]; dst_1[6*i+4] = g[Y]; dst_1[6*i+5] = b[Y];

  243. 

  244. #define DST2RGB(i)							\

  245. 	Y = py_2[2*i];							\

  246. 	dst_2[6*i] = r[Y]; dst_2[6*i+1] = g[Y]; dst_2[6*i+2] = b[Y];	\

  247. 	Y = py_2[2*i+1];						\

  248. 	dst_2[6*i+3] = r[Y]; dst_2[6*i+4] = g[Y]; dst_2[6*i+5] = b[Y];

  249. 

  250. #define DST1BGR(i)							\

  251. 	Y = py_1[2*i];							\

  252. 	dst_1[6*i] = b[Y]; dst_1[6*i+1] = g[Y]; dst_1[6*i+2] = r[Y];	\

  253. 	Y = py_1[2*i+1];						\

  254. 	dst_1[6*i+3] = b[Y]; dst_1[6*i+4] = g[Y]; dst_1[6*i+5] = r[Y];

  255. 

  256. #define DST2BGR(i)							\

  257. 	Y = py_2[2*i];							\

  258. 	dst_2[6*i] = b[Y]; dst_2[6*i+1] = g[Y]; dst_2[6*i+2] = r[Y];	\

  259. 	Y = py_2[2*i+1];						\

  260. 	dst_2[6*i+3] = b[Y]; dst_2[6*i+4] = g[Y]; dst_2[6*i+5] = r[Y];

  261. 

  262. #define PROLOG(func_name, dst_type) \

  263. static int func_name(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY, \

  264.              int srcSliceH, uint8_t* dst[], int dstStride[]){\

  265.     int y;\

  266. \

  267.     if(c->srcFormat == IMGFMT_422P){\

  268. 	srcStride[1] *= 2;\

  269. 	srcStride[2] *= 2;\

  270.     }\

  271.     for(y=0; y<srcSliceH; y+=2){\

  272. 	dst_type *dst_1= (dst_type*)(dst[0] + (y+srcSliceY  )*dstStride[0]);\

  273. 	dst_type *dst_2= (dst_type*)(dst[0] + (y+srcSliceY+1)*dstStride[0]);\

  274. 	dst_type *r, *g, *b;\

  275. 	uint8_t *py_1= src[0] + y*srcStride[0];\

  276. 	uint8_t *py_2= py_1 + srcStride[0];\

  277. 	uint8_t *pu= src[1] + (y>>1)*srcStride[1];\

  278. 	uint8_t *pv= src[2] + (y>>1)*srcStride[2];\

  279. 	unsigned int h_size= c->dstW>>3;\

  280. 	while (h_size--) {\

  281. 	    int U, V, Y;\

  282. 

  283. #define EPILOG(dst_delta)\

  284. 	    pu += 4;\

  285. 	    pv += 4;\

  286. 	    py_1 += 8;\

  287. 	    py_2 += 8;\

  288. 	    dst_1 += dst_delta;\

  289. 	    dst_2 += dst_delta;\

  290. 	}\

  291.     }\

  292.     return srcSliceH;\

  293. }

  294. 

  295. PROLOG(yuv2rgb_c_32, uint32_t)

  296. 	RGB(0);

  297. 	DST1(0);

  298. 	DST2(0);

  299. 

  300. 	RGB(1);

  301. 	DST2(1);

  302. 	DST1(1);

  303. 

  304. 	RGB(2);

  305. 	DST1(2);

  306. 	DST2(2);

  307. 

  308. 	RGB(3);

  309. 	DST2(3);

  310. 	DST1(3);

  311. EPILOG(8)

  312. 

  313. PROLOG(yuv2rgb_c_24_rgb, uint8_t)

  314. 	RGB(0);

  315. 	DST1RGB(0);

  316. 	DST2RGB(0);

  317. 

  318. 	RGB(1);

  319. 	DST2RGB(1);

  320. 	DST1RGB(1);

  321. 

  322. 	RGB(2);

  323. 	DST1RGB(2);

  324. 	DST2RGB(2);

  325. 

  326. 	RGB(3);

  327. 	DST2RGB(3);

  328. 	DST1RGB(3);

  329. EPILOG(24)

  330. 

  331. // only trivial mods from yuv2rgb_c_24_rgb

  332. PROLOG(yuv2rgb_c_24_bgr, uint8_t)

  333. 	RGB(0);

  334. 	DST1BGR(0);

  335. 	DST2BGR(0);

  336. 

  337. 	RGB(1);

  338. 	DST2BGR(1);

  339. 	DST1BGR(1);

  340. 

  341. 	RGB(2);

  342. 	DST1BGR(2);

  343. 	DST2BGR(2);

  344. 

  345. 	RGB(3);

  346. 	DST2BGR(3);

  347. 	DST1BGR(3);

  348. EPILOG(24)

  349. 

  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. PROLOG(yuv2rgb_c_16, uint16_t)

  353. 	RGB(0);

  354. 	DST1(0);

  355. 	DST2(0);

  356. 

  357. 	RGB(1);

  358. 	DST2(1);

  359. 	DST1(1);

  360. 

  361. 	RGB(2);

  362. 	DST1(2);

  363. 	DST2(2);

  364. 

  365. 	RGB(3);

  366. 	DST2(3);

  367. 	DST1(3);

  368. EPILOG(8)

  369. 

  370. // This is exactly the same code as yuv2rgb_c_32 except for the types of

  371. // r, g, b, dst_1, dst_2

  372. PROLOG(yuv2rgb_c_8, uint8_t)

  373. 	RGB(0);

  374. 	DST1(0);

  375. 	DST2(0);

  376. 

  377. 	RGB(1);

  378. 	DST2(1);

  379. 	DST1(1);

  380. 

  381. 	RGB(2);

  382. 	DST1(2);

  383. 	DST2(2);

  384. 

  385. 	RGB(3);

  386. 	DST2(3);

  387. 	DST1(3);

  388. EPILOG(8)

  389. 

  390. // r, g, b, dst_1, dst_2

  391. PROLOG(yuv2rgb_c_8_ordered_dither, uint8_t)

  392. 	const uint8_t *d32= dither_8x8_32[y&7];

  393. 	const uint8_t *d64= dither_8x8_73[y&7];

  394. #define DST1bpp8(i,o)					\

  395. 	Y = py_1[2*i];				\

  396. 	dst_1[2*i] = r[Y+d32[0+o]] + g[Y+d32[0+o]] + b[Y+d64[0+o]];	\

  397. 	Y = py_1[2*i+1];			\

  398. 	dst_1[2*i+1] = r[Y+d32[1+o]] + g[Y+d32[1+o]] + b[Y+d64[1+o]];

  399. 

  400. #define DST2bpp8(i,o)					\

  401. 	Y = py_2[2*i];				\

  402. 	dst_2[2*i] =  r[Y+d32[8+o]] + g[Y+d32[8+o]] + b[Y+d64[8+o]];	\

  403. 	Y = py_2[2*i+1];			\

  404. 	dst_2[2*i+1] =  r[Y+d32[9+o]] + g[Y+d32[9+o]] + b[Y+d64[9+o]];

  405. 

  406. 

  407. 	RGB(0);

  408. 	DST1bpp8(0,0);

  409. 	DST2bpp8(0,0);

  410. 

  411. 	RGB(1);

  412. 	DST2bpp8(1,2);

  413. 	DST1bpp8(1,2);

  414. 

  415. 	RGB(2);

  416. 	DST1bpp8(2,4);

  417. 	DST2bpp8(2,4);

  418. 

  419. 	RGB(3);

  420. 	DST2bpp8(3,6);

  421. 	DST1bpp8(3,6);

  422. EPILOG(8)

  423. 

  424. 

  425. // This is exactly the same code as yuv2rgb_c_32 except for the types of

  426. // r, g, b, dst_1, dst_2

  427. PROLOG(yuv2rgb_c_4, uint8_t)

  428.         int acc;

  429. #define DST1_4(i)					\

  430. 	Y = py_1[2*i];				\

  431. 	acc = r[Y] + g[Y] + b[Y];	\

  432. 	Y = py_1[2*i+1];			\

  433.         acc |= (r[Y] + g[Y] + b[Y])<<4;\

  434. 	dst_1[i] = acc; 

  435. 

  436. #define DST2_4(i)					\

  437. 	Y = py_2[2*i];				\

  438. 	acc = r[Y] + g[Y] + b[Y];	\

  439. 	Y = py_2[2*i+1];			\

  440. 	acc |= (r[Y] + g[Y] + b[Y])<<4;\

  441. 	dst_2[i] = acc; 

  442. 	

  443.         RGB(0);

  444. 	DST1_4(0);

  445. 	DST2_4(0);

  446. 

  447. 	RGB(1);

  448. 	DST2_4(1);

  449. 	DST1_4(1);

  450. 

  451. 	RGB(2);

  452. 	DST1_4(2);

  453. 	DST2_4(2);

  454. 

  455. 	RGB(3);

  456. 	DST2_4(3);

  457. 	DST1_4(3);

  458. EPILOG(4)

  459. 

  460. PROLOG(yuv2rgb_c_4_ordered_dither, uint8_t)

  461. 	const uint8_t *d64= dither_8x8_73[y&7];

  462. 	const uint8_t *d128=dither_8x8_220[y&7];

  463.         int acc;

  464. 

  465. #define DST1bpp4(i,o)					\

  466. 	Y = py_1[2*i];				\

  467. 	acc = r[Y+d128[0+o]] + g[Y+d64[0+o]] + b[Y+d128[0+o]];	\

  468. 	Y = py_1[2*i+1];			\

  469. 	acc |= (r[Y+d128[1+o]] + g[Y+d64[1+o]] + b[Y+d128[1+o]])<<4;\

  470.         dst_1[i]= acc;

  471. 

  472. #define DST2bpp4(i,o)					\

  473. 	Y = py_2[2*i];				\

  474. 	acc =  r[Y+d128[8+o]] + g[Y+d64[8+o]] + b[Y+d128[8+o]];	\

  475. 	Y = py_2[2*i+1];			\

  476. 	acc |=  (r[Y+d128[9+o]] + g[Y+d64[9+o]] + b[Y+d128[9+o]])<<4;\

  477.         dst_2[i]= acc;

  478. 

  479. 

  480. 	RGB(0);

  481. 	DST1bpp4(0,0);

  482. 	DST2bpp4(0,0);

  483. 

  484. 	RGB(1);

  485. 	DST2bpp4(1,2);

  486. 	DST1bpp4(1,2);

  487. 

  488. 	RGB(2);

  489. 	DST1bpp4(2,4);

  490. 	DST2bpp4(2,4);

  491. 

  492. 	RGB(3);

  493. 	DST2bpp4(3,6);

  494. 	DST1bpp4(3,6);

  495. EPILOG(4)

  496. 

  497. // This is exactly the same code as yuv2rgb_c_32 except for the types of

  498. // r, g, b, dst_1, dst_2

  499. PROLOG(yuv2rgb_c_4b, uint8_t)

  500. 	RGB(0);

  501. 	DST1(0);

  502. 	DST2(0);

  503. 

  504. 	RGB(1);

  505. 	DST2(1);

  506. 	DST1(1);

  507. 

  508. 	RGB(2);

  509. 	DST1(2);

  510. 	DST2(2);

  511. 

  512. 	RGB(3);

  513. 	DST2(3);

  514. 	DST1(3);

  515. EPILOG(8)

  516. 

  517. PROLOG(yuv2rgb_c_4b_ordered_dither, uint8_t)

  518. 	const uint8_t *d64= dither_8x8_73[y&7];

  519. 	const uint8_t *d128=dither_8x8_220[y&7];

  520. 

  521. #define DST1bpp4b(i,o)					\

  522. 	Y = py_1[2*i];				\

  523. 	dst_1[2*i] = r[Y+d128[0+o]] + g[Y+d64[0+o]] + b[Y+d128[0+o]];	\

  524. 	Y = py_1[2*i+1];			\

  525. 	dst_1[2*i+1] = r[Y+d128[1+o]] + g[Y+d64[1+o]] + b[Y+d128[1+o]];

  526. 

  527. #define DST2bpp4b(i,o)					\

  528. 	Y = py_2[2*i];				\

  529. 	dst_2[2*i] =  r[Y+d128[8+o]] + g[Y+d64[8+o]] + b[Y+d128[8+o]];	\

  530. 	Y = py_2[2*i+1];			\

  531. 	dst_2[2*i+1] =  r[Y+d128[9+o]] + g[Y+d64[9+o]] + b[Y+d128[9+o]];

  532. 

  533. 

  534. 	RGB(0);

  535. 	DST1bpp4b(0,0);

  536. 	DST2bpp4b(0,0);

  537. 

  538. 	RGB(1);

  539. 	DST2bpp4b(1,2);

  540. 	DST1bpp4b(1,2);

  541. 

  542. 	RGB(2);

  543. 	DST1bpp4b(2,4);

  544. 	DST2bpp4b(2,4);

  545. 

  546. 	RGB(3);

  547. 	DST2bpp4b(3,6);

  548. 	DST1bpp4b(3,6);

  549. EPILOG(8)

  550. 

  551. PROLOG(yuv2rgb_c_1_ordered_dither, uint8_t)

  552. 	const uint8_t *d128=dither_8x8_220[y&7];

  553. 	char out_1=0, out_2=0;

  554. 	g= c->table_gU[128] + c->table_gV[128];

  555. 

  556. #define DST1bpp1(i,o)					\

  557. 	Y = py_1[2*i];				\

  558. 	out_1+= out_1 + g[Y+d128[0+o]];	\

  559. 	Y = py_1[2*i+1];			\

  560. 	out_1+= out_1 + g[Y+d128[1+o]];

  561. 

  562. #define DST2bpp1(i,o)					\

  563. 	Y = py_2[2*i];				\

  564. 	out_2+= out_2 + g[Y+d128[8+o]];	\

  565. 	Y = py_2[2*i+1];			\

  566. 	out_2+= out_2 + g[Y+d128[9+o]];

  567. 

  568. 	DST1bpp1(0,0);

  569. 	DST2bpp1(0,0);

  570. 

  571. 	DST2bpp1(1,2);

  572. 	DST1bpp1(1,2);

  573. 

  574. 	DST1bpp1(2,4);

  575. 	DST2bpp1(2,4);

  576. 

  577. 	DST2bpp1(3,6);

  578. 	DST1bpp1(3,6);

  579. 	

  580. 	dst_1[0]= out_1;

  581. 	dst_2[0]= out_2;

  582. EPILOG(1)

  583. 

  584. SwsFunc yuv2rgb_get_func_ptr (SwsContext *c)

  585. {

  586. #ifdef ARCH_X86

  587.     if(c->flags & SWS_CPU_CAPS_MMX2){

  588. 	switch(c->dstFormat){

  589. 	case IMGFMT_BGR32: return yuv420_rgb32_MMX2;

  590. 	case IMGFMT_BGR24: return yuv420_rgb24_MMX2;

  591. 	case IMGFMT_BGR16: return yuv420_rgb16_MMX2;

  592. 	case IMGFMT_BGR15: return yuv420_rgb15_MMX2;

  593. 	}

  594.     }

  595.     if(c->flags & SWS_CPU_CAPS_MMX){

  596. 	switch(c->dstFormat){

  597. 	case IMGFMT_BGR32: return yuv420_rgb32_MMX;

  598. 	case IMGFMT_BGR24: return yuv420_rgb24_MMX;

  599. 	case IMGFMT_BGR16: return yuv420_rgb16_MMX;

  600. 	case IMGFMT_BGR15: return yuv420_rgb15_MMX;

  601. 	}

  602.     }

  603. #endif

  604. #ifdef HAVE_MLIB

  605.     {

  606. 	SwsFunc t= yuv2rgb_init_mlib(c);

  607. 	if(t) return t;

  608.     }

  609. #endif

  610.     MSG_WARN("No accelerated colorspace conversion found\n");

  611. 

  612.     switch(c->dstFormat){

  613.     case IMGFMT_RGB32:

  614.     case IMGFMT_BGR32: return yuv2rgb_c_32;

  615.     case IMGFMT_RGB24: return yuv2rgb_c_24_rgb;

  616.     case IMGFMT_BGR24: return yuv2rgb_c_24_bgr;

  617.     case IMGFMT_RGB16:

  618.     case IMGFMT_BGR16:

  619.     case IMGFMT_RGB15:

  620.     case IMGFMT_BGR15: return yuv2rgb_c_16;

  621.     case IMGFMT_RGB8:

  622.     case IMGFMT_BGR8:  return yuv2rgb_c_8_ordered_dither;

  623.     case IMGFMT_RGB4:

  624.     case IMGFMT_BGR4:  return yuv2rgb_c_4_ordered_dither;

  625.     case IMGFMT_RG4B:

  626.     case IMGFMT_BG4B:  return yuv2rgb_c_4b_ordered_dither;

  627.     case IMGFMT_RGB1:

  628.     case IMGFMT_BGR1:  return yuv2rgb_c_1_ordered_dither;

  629.     default:

  630.     	assert(0);

  631.     }

  632.     return NULL;

  633. }

  634. 

  635. static int div_round (int dividend, int divisor)

  636. {

  637.     if (dividend > 0)

  638. 	return (dividend + (divisor>>1)) / divisor;

  639.     else

  640. 	return -((-dividend + (divisor>>1)) / divisor);

  641. }

  642. 

  643. int yuv2rgb_c_init_tables (SwsContext *c, const int inv_table[4], int fullRange, int brightness, int contrast, int saturation)

  644. {  

  645.     const int isRgb = IMGFMT_IS_RGB(c->dstFormat);

  646.     const int bpp = isRgb?IMGFMT_RGB_DEPTH(c->dstFormat):IMGFMT_BGR_DEPTH(c->dstFormat);

  647.     int i;

  648.     uint8_t table_Y[1024];

  649.     uint32_t *table_32 = 0;

  650.     uint16_t *table_16 = 0;

  651.     uint8_t *table_8 = 0;

  652.     uint8_t *table_332 = 0;

  653.     uint8_t *table_121 = 0;

  654.     uint8_t *table_1 = 0;

  655.     int entry_size = 0;

  656.     void *table_r = 0, *table_g = 0, *table_b = 0;

  657.     void *table_start;

  658. 

  659.     int64_t crv =  inv_table[0];

  660.     int64_t cbu =  inv_table[1];

  661.     int64_t cgu = -inv_table[2];

  662.     int64_t cgv = -inv_table[3];

  663.     int64_t cy  = 1<<16;

  664.     int64_t oy  = 0;

  665. 

  666. //printf("%lld %lld %lld %lld %lld\n", cy, crv, cbu, cgu, cgv);

  667.     if(!fullRange){

  668. 	cy= (cy*255) / 219;

  669. 	oy= 16<<16;

  670.     }

  671. 	

  672.     cy = (cy *contrast             )>>16;

  673.     crv= (crv*contrast * saturation)>>32;

  674.     cbu= (cbu*contrast * saturation)>>32;

  675.     cgu= (cgu*contrast * saturation)>>32;

  676.     cgv= (cgv*contrast * saturation)>>32;

  677. //printf("%lld %lld %lld %lld %lld\n", cy, crv, cbu, cgu, cgv);

  678.     oy -= 256*brightness;

  679. 

  680.     for (i = 0; i < 1024; i++) {

  681. 	int j;

  682. 

  683. 	j= (cy*(((i - 384)<<16) - oy) + (1<<31))>>32;

  684. 	j = (j < 0) ? 0 : ((j > 255) ? 255 : j);

  685. 	table_Y[i] = j;

  686.     }

  687. 

  688.     switch (bpp) {

  689.     case 32:

  690. 	table_start= table_32 = malloc ((197 + 2*682 + 256 + 132) * sizeof (uint32_t));

  691. 

  692. 	entry_size = sizeof (uint32_t);

  693. 	table_r = table_32 + 197;

  694. 	table_b = table_32 + 197 + 685;

  695. 	table_g = table_32 + 197 + 2*682;

  696. 

  697. 	for (i = -197; i < 256+197; i++)

  698. 	    ((uint32_t *)table_r)[i] = table_Y[i+384] << (isRgb ? 16 : 0);

  699. 	for (i = -132; i < 256+132; i++)

  700. 	    ((uint32_t *)table_g)[i] = table_Y[i+384] << 8;

  701. 	for (i = -232; i < 256+232; i++)

  702. 	    ((uint32_t *)table_b)[i] = table_Y[i+384] << (isRgb ? 0 : 16);

  703. 	break;

  704. 

  705.     case 24:

  706. 	table_start= table_8 = malloc ((256 + 2*232) * sizeof (uint8_t));

  707. 

  708. 	entry_size = sizeof (uint8_t);

  709. 	table_r = table_g = table_b = table_8 + 232;

  710. 

  711. 	for (i = -232; i < 256+232; i++)

  712. 	    ((uint8_t * )table_b)[i] = table_Y[i+384];

  713. 	break;

  714. 

  715.     case 15:

  716.     case 16:

  717. 	table_start= table_16 = malloc ((197 + 2*682 + 256 + 132) * sizeof (uint16_t));

  718. 

  719. 	entry_size = sizeof (uint16_t);

  720. 	table_r = table_16 + 197;

  721. 	table_b = table_16 + 197 + 685;

  722. 	table_g = table_16 + 197 + 2*682;

  723. 

  724. 	for (i = -197; i < 256+197; i++) {

  725. 	    int j = table_Y[i+384] >> 3;

  726. 

  727. 	    if (isRgb)

  728. 		j <<= ((bpp==16) ? 11 : 10);

  729. 

  730. 	    ((uint16_t *)table_r)[i] = j;

  731. 	}

  732. 	for (i = -132; i < 256+132; i++) {

  733. 	    int j = table_Y[i+384] >> ((bpp==16) ? 2 : 3);

  734. 

  735. 	    ((uint16_t *)table_g)[i] = j << 5;

  736. 	}

  737. 	for (i = -232; i < 256+232; i++) {

  738. 	    int j = table_Y[i+384] >> 3;

  739. 

  740. 	    if (!isRgb)

  741. 		j <<= ((bpp==16) ? 11 : 10);

  742. 

  743. 	    ((uint16_t *)table_b)[i] = j;

  744. 	}

  745. 	break;

  746. 

  747.     case 8:

  748. 	table_start= table_332 = malloc ((197 + 2*682 + 256 + 132) * sizeof (uint8_t));

  749. 

  750. 	entry_size = sizeof (uint8_t);

  751. 	table_r = table_332 + 197;

  752. 	table_b = table_332 + 197 + 685;

  753. 	table_g = table_332 + 197 + 2*682;

  754. 

  755. 	for (i = -197; i < 256+197; i++) {

  756. 	    int j = (table_Y[i+384 - 16] + 18)/36;

  757. 

  758. 	    if (isRgb)

  759. 		j <<= 5;

  760. 

  761. 	    ((uint8_t *)table_r)[i] = j;

  762. 	}

  763. 	for (i = -132; i < 256+132; i++) {

  764. 	    int j = (table_Y[i+384 - 16] + 18)/36;

  765. 

  766. 	    if (!isRgb)

  767. 		j <<= 1;

  768. 

  769. 	    ((uint8_t *)table_g)[i] = j << 2;

  770. 	}

  771. 	for (i = -232; i < 256+232; i++) {

  772. 	    int j = (table_Y[i+384 - 37] + 43)/85;

  773. 

  774. 	    if (!isRgb)

  775. 		j <<= 6;

  776. 

  777. 	    ((uint8_t *)table_b)[i] = j;

  778. 	}

  779. 	break;

  780.     case 4:

  781.     case 4|128:

  782. 	table_start= table_121 = malloc ((197 + 2*682 + 256 + 132) * sizeof (uint8_t));

  783. 

  784. 	entry_size = sizeof (uint8_t);

  785. 	table_r = table_121 + 197;

  786. 	table_b = table_121 + 197 + 685;

  787. 	table_g = table_121 + 197 + 2*682;

  788. 

  789. 	for (i = -197; i < 256+197; i++) {

  790. 	    int j = table_Y[i+384 - 110] >> 7;

  791. 

  792. 	    if (isRgb)

  793. 		j <<= 3;

  794. 

  795. 	    ((uint8_t *)table_r)[i] = j;

  796. 	}

  797. 	for (i = -132; i < 256+132; i++) {

  798. 	    int j = (table_Y[i+384 - 37]+ 43)/85;

  799. 

  800. 	    ((uint8_t *)table_g)[i] = j << 1;

  801. 	}

  802. 	for (i = -232; i < 256+232; i++) {

  803. 	    int j =table_Y[i+384 - 110] >> 7;

  804. 

  805. 	    if (!isRgb)

  806. 		j <<= 3;

  807. 

  808. 	    ((uint8_t *)table_b)[i] = j;

  809. 	}

  810. 	break;

  811. 

  812.     case 1:

  813. 	table_start= table_1 = malloc (256*2 * sizeof (uint8_t));

  814. 

  815. 	entry_size = sizeof (uint8_t);

  816. 	table_g = table_1;

  817. 	table_r = table_b = NULL;

  818. 

  819. 	for (i = 0; i < 256+256; i++) {

  820. 	    int j = table_Y[i + 384 - 110]>>7;

  821. 

  822. 	    ((uint8_t *)table_g)[i] = j;

  823. 	}

  824. 	break;

  825. 

  826.     default:

  827. 	table_start= NULL;

  828. 	MSG_ERR("%ibpp not supported by yuv2rgb\n", bpp);

  829. 	//free mem?

  830. 	return -1;

  831.     }

  832. 

  833.     for (i = 0; i < 256; i++) {

  834. 	c->table_rV[i] = table_r + entry_size * div_round (crv * (i-128), 76309);

  835. 	c->table_gU[i] = table_g + entry_size * div_round (cgu * (i-128), 76309);

  836. 	c->table_gV[i] = entry_size * div_round (cgv * (i-128), 76309);

  837. 	c->table_bU[i] = table_b + entry_size * div_round (cbu * (i-128), 76309);

  838.     }

  839. 

  840.     if(c->yuvTable) free(c->yuvTable);

  841.     c->yuvTable= table_start;

  842.     return 0;

  843. }