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FFmpeg/postproc/yuv2rgb_template.c

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  1. 

  2. /*

  3.  * yuv2rgb_mmx.c, Software YUV to RGB coverter with Intel MMX "technology"

  4.  *

  5.  * Copyright (C) 2000, Silicon Integrated System Corp.

  6.  * All Rights Reserved.

  7.  *

  8.  * Author: Olie Lho <ollie@sis.com.tw>

  9.  *

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

  11.  *

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

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

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

  15.  * any later version.

  16.  *

  17.  * mpeg2dec 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

  20.  * GNU General Public License for more details.

  21.  *

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

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

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

  25.  *

  26.  * 15,24 bpp and dithering from Michael Niedermayer (michaelni@gmx.at)

  27.  * MMX/MMX2 Template stuff from Michael Niedermayer (needed for fast movntq support)

  28.  */

  29. 

  30. #undef MOVNTQ

  31. #undef EMMS

  32. #undef SFENCE

  33. 

  34. #ifdef HAVE_3DNOW

  35. /* On K6 femms is faster of emms. On K7 femms is directly mapped on emms. */

  36. #define EMMS     "femms"

  37. #else

  38. #define EMMS     "emms"

  39. #endif

  40. 

  41. #ifdef HAVE_MMX2

  42. #define MOVNTQ "movntq"

  43. #define SFENCE "sfence"

  44. #else

  45. #define MOVNTQ "movq"

  46. #define SFENCE "/nop"

  47. #endif

  48. 

  49. #define YUV2RGB \

  50. 		     /* Do the multiply part of the conversion for even and odd pixels,

  51. 			register usage:

  52. 			mm0 -> Cblue, mm1 -> Cred, mm2 -> Cgreen even pixels,

  53. 			mm3 -> Cblue, mm4 -> Cred, mm5 -> Cgreen odd pixels,

  54. 			mm6 -> Y even, mm7 -> Y odd */\

  55. 		     /* convert the chroma part */\

  56. 		     "punpcklbw %%mm4, %%mm0;" /* scatter 4 Cb 00 u3 00 u2 00 u1 00 u0 */ \

  57. 		     "punpcklbw %%mm4, %%mm1;" /* scatter 4 Cr 00 v3 00 v2 00 v1 00 v0 */ \

  58. \

  59. 		     "psubsw "MANGLE(mmx_80w)", %%mm0;" /* Cb -= 128 */ \

  60. 		     "psubsw "MANGLE(mmx_80w)", %%mm1;" /* Cr -= 128 */ \

  61. \

  62. 		     "psllw $3, %%mm0;" /* Promote precision */ \

  63. 		     "psllw $3, %%mm1;" /* Promote precision */ \

  64. \

  65. 		     "movq %%mm0, %%mm2;" /* Copy 4 Cb 00 u3 00 u2 00 u1 00 u0 */ \

  66. 		     "movq %%mm1, %%mm3;" /* Copy 4 Cr 00 v3 00 v2 00 v1 00 v0 */ \

  67. \

  68. 		     "pmulhw "MANGLE(mmx_U_green)", %%mm2;" /* Mul Cb with green coeff -> Cb green */ \

  69. 		     "pmulhw "MANGLE(mmx_V_green)", %%mm3;" /* Mul Cr with green coeff -> Cr green */ \

  70. \

  71. 		     "pmulhw "MANGLE(mmx_U_blue)", %%mm0;" /* Mul Cb -> Cblue 00 b3 00 b2 00 b1 00 b0 */\

  72. 		     "pmulhw "MANGLE(mmx_V_red)", %%mm1;" /* Mul Cr -> Cred 00 r3 00 r2 00 r1 00 r0 */\

  73. \

  74. 		     "paddsw %%mm3, %%mm2;" /* Cb green + Cr green -> Cgreen */\

  75. \

  76. 		     /* convert the luma part */\

  77. 		     "psubusb "MANGLE(mmx_10w)", %%mm6;" /* Y -= 16 */\

  78. \

  79. 		     "movq %%mm6, %%mm7;" /* Copy 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */\

  80. 		     "pand "MANGLE(mmx_00ffw)", %%mm6;" /* get Y even 00 Y6 00 Y4 00 Y2 00 Y0 */\

  81. \

  82. 		     "psrlw $8, %%mm7;" /* get Y odd 00 Y7 00 Y5 00 Y3 00 Y1 */\

  83. \

  84. 		     "psllw $3, %%mm6;" /* Promote precision */\

  85. 		     "psllw $3, %%mm7;" /* Promote precision */\

  86. \

  87. 		     "pmulhw "MANGLE(mmx_Y_coeff)", %%mm6;" /* Mul 4 Y even 00 y6 00 y4 00 y2 00 y0 */\

  88. 		     "pmulhw "MANGLE(mmx_Y_coeff)", %%mm7;" /* Mul 4 Y odd 00 y7 00 y5 00 y3 00 y1 */\

  89. \

  90. 		     /* Do the addition part of the conversion for even and odd pixels,

  91. 			register usage:

  92. 			mm0 -> Cblue, mm1 -> Cred, mm2 -> Cgreen even pixels,

  93. 			mm3 -> Cblue, mm4 -> Cred, mm5 -> Cgreen odd pixels,

  94. 			mm6 -> Y even, mm7 -> Y odd */\

  95. 		     "movq %%mm0, %%mm3;" /* Copy Cblue */\

  96. 		     "movq %%mm1, %%mm4;" /* Copy Cred */\

  97. 		     "movq %%mm2, %%mm5;" /* Copy Cgreen */\

  98. \

  99. 		     "paddsw %%mm6, %%mm0;" /* Y even + Cblue 00 B6 00 B4 00 B2 00 B0 */\

  100. 		     "paddsw %%mm7, %%mm3;" /* Y odd + Cblue 00 B7 00 B5 00 B3 00 B1 */\

  101. \

  102. 		     "paddsw %%mm6, %%mm1;" /* Y even + Cred 00 R6 00 R4 00 R2 00 R0 */\

  103. 		     "paddsw %%mm7, %%mm4;" /* Y odd + Cred 00 R7 00 R5 00 R3 00 R1 */\

  104. \

  105. 		     "paddsw %%mm6, %%mm2;" /* Y even + Cgreen 00 G6 00 G4 00 G2 00 G0 */\

  106. 		     "paddsw %%mm7, %%mm5;" /* Y odd + Cgreen 00 G7 00 G5 00 G3 00 G1 */\

  107. \

  108. 		     /* Limit RGB even to 0..255 */\

  109. 		     "packuswb %%mm0, %%mm0;" /* B6 B4 B2 B0  B6 B4 B2 B0 */\

  110. 		     "packuswb %%mm1, %%mm1;" /* R6 R4 R2 R0  R6 R4 R2 R0 */\

  111. 		     "packuswb %%mm2, %%mm2;" /* G6 G4 G2 G0  G6 G4 G2 G0 */\

  112. \

  113. 		     /* Limit RGB odd to 0..255 */\

  114. 		     "packuswb %%mm3, %%mm3;" /* B7 B5 B3 B1  B7 B5 B3 B1 */\

  115. 		     "packuswb %%mm4, %%mm4;" /* R7 R5 R3 R1  R7 R5 R3 R1 */\

  116. 		     "packuswb %%mm5, %%mm5;" /* G7 G5 G3 G1  G7 G5 G3 G1 */\

  117. \

  118. 		     /* Interleave RGB even and odd */\

  119. 		     "punpcklbw %%mm3, %%mm0;" /* B7 B6 B5 B4 B3 B2 B1 B0 */\

  120. 		     "punpcklbw %%mm4, %%mm1;" /* R7 R6 R5 R4 R3 R2 R1 R0 */\

  121. 		     "punpcklbw %%mm5, %%mm2;" /* G7 G6 G5 G4 G3 G2 G1 G0 */\

  122. 

  123. 

  124. static inline void RENAME(yuv420_rgb16) (uint8_t * image, uint8_t * py,

  125. 			      uint8_t * pu, uint8_t * pv,

  126. 			      unsigned h_size, unsigned v_size,

  127. 			      unsigned rgb_stride, unsigned y_stride, unsigned uv_stride)

  128. {

  129.     int even = 1;

  130.     int x, y;

  131. 

  132.     __asm__ __volatile__ ("pxor %mm4, %mm4;" /* zero mm4 */ );

  133. 

  134.     for (y = v_size; --y >= 0; ) {

  135. 	uint8_t *_image = image;

  136. 	uint8_t *_py = py;

  137. 	uint8_t *_pu = pu;

  138. 	uint8_t *_pv = pv;

  139. 	int internal_h_size= h_size;

  140. 	int aligned_h_size= (h_size+7)&~7;

  141. 

  142. 	if(rgb_stride >= aligned_h_size*2) internal_h_size= aligned_h_size;

  143. 

  144. 	b5Dither= dither8[y&1];

  145. 	g6Dither= dither4[y&1];

  146. 	g5Dither= dither8[y&1];

  147. 	r5Dither= dither8[(y+1)&1];

  148. 

  149. 	/* load data for start of next scan line */

  150. 	__asm__ __volatile__ (

  151. 		 "movd (%1), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */

  152. 		 "movd (%2), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */

  153. 		 "movq (%0), %%mm6;" /* Load 8  Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */

  154. 

  155. 		 : : "r" (_py), "r" (_pu), "r" (_pv));

  156. 

  157. 	for (x = internal_h_size >> 3; --x >= 0; ) {

  158. 	    /* this mmx assembly code deals with SINGLE scan line at a time, it convert 8

  159. 	       pixels in each iteration */

  160. 

  161. 	    __asm__ __volatile__ (

  162. /* no speed diference on my p3@500 with prefetch,

  163.  * if it is faster for anyone with -benchmark then tell me

  164. 			PREFETCH" 64(%0) \n\t"

  165. 			PREFETCH" 64(%1) \n\t"

  166. 			PREFETCH" 64(%2) \n\t"

  167. */

  168. YUV2RGB

  169. 

  170. #ifdef DITHER1XBPP

  171. 			"paddusb "MANGLE(b5Dither)", %%mm0;"

  172. 			"paddusb "MANGLE(g6Dither)", %%mm2;"

  173. 			"paddusb "MANGLE(r5Dither)", %%mm1;"

  174. #endif

  175. 		     /* mask unneeded bits off */

  176. 		     "pand "MANGLE(mmx_redmask)", %%mm0;" /* b7b6b5b4 b3_0_0_0 b7b6b5b4 b3_0_0_0 */

  177. 		     "pand "MANGLE(mmx_grnmask)", %%mm2;" /* g7g6g5g4 g3g2_0_0 g7g6g5g4 g3g2_0_0 */

  178. 		     "pand "MANGLE(mmx_redmask)", %%mm1;" /* r7r6r5r4 r3_0_0_0 r7r6r5r4 r3_0_0_0 */

  179. 

  180. 		     "psrlw $3,%%mm0;" /* 0_0_0_b7 b6b5b4b3 0_0_0_b7 b6b5b4b3 */

  181. 		     "pxor %%mm4, %%mm4;" /* zero mm4 */

  182. 

  183. 		     "movq %%mm0, %%mm5;" /* Copy B7-B0 */

  184. 		     "movq %%mm2, %%mm7;" /* Copy G7-G0 */

  185. 

  186. 		     /* convert rgb24 plane to rgb16 pack for pixel 0-3 */

  187. 		     "punpcklbw %%mm4, %%mm2;" /* 0_0_0_0 0_0_0_0 g7g6g5g4 g3g2_0_0 */

  188. 		     "punpcklbw %%mm1, %%mm0;" /* r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3 */

  189. 

  190. 		     "psllw $3, %%mm2;" /* 0_0_0_0 0_g7g6g5 g4g3g2_0 0_0_0_0 */

  191. 		     "por %%mm2, %%mm0;" /* r7r6r5r4 r3g7g6g5 g4g3g2b7 b6b5b4b3 */

  192. 

  193. 		     "movq 8 (%0), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */

  194. 		     MOVNTQ " %%mm0, (%3);" /* store pixel 0-3 */

  195. 

  196. 		     /* convert rgb24 plane to rgb16 pack for pixel 0-3 */

  197. 		     "punpckhbw %%mm4, %%mm7;" /* 0_0_0_0 0_0_0_0 g7g6g5g4 g3g2_0_0 */

  198. 		     "punpckhbw %%mm1, %%mm5;" /* r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3 */

  199. 

  200. 		     "psllw $3, %%mm7;" /* 0_0_0_0 0_g7g6g5 g4g3g2_0 0_0_0_0 */

  201. 		     "movd 4 (%1), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */

  202. 

  203. 		     "por %%mm7, %%mm5;" /* r7r6r5r4 r3g7g6g5 g4g3g2b7 b6b5b4b3 */

  204. 		     "movd 4 (%2), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */

  205. 

  206. 		     MOVNTQ " %%mm5, 8 (%3);" /* store pixel 4-7 */

  207. 		     : : "r" (_py), "r" (_pu), "r" (_pv), "r" (_image));

  208. 

  209. 	    _py += 8;

  210. 	    _pu += 4;

  211. 	    _pv += 4;

  212. 	    _image += 16;

  213. 	}

  214. 

  215. 	if (!even) {

  216. 	    pu += uv_stride;

  217. 	    pv += uv_stride;

  218. 	}

  219. 

  220. 	py += y_stride;

  221. 	image += rgb_stride;

  222. 

  223. 	even = (!even);

  224.     }

  225. 

  226.     __asm__ __volatile__ (EMMS);

  227. }

  228. 

  229. static inline void RENAME(yuv420_rgb15) (uint8_t * image, uint8_t * py,

  230. 			      uint8_t * pu, uint8_t * pv,

  231. 			      unsigned h_size, unsigned v_size,

  232. 			      unsigned rgb_stride, unsigned y_stride, unsigned uv_stride)

  233. {

  234.     int even = 1;

  235.     int x, y;

  236. 

  237.     __asm__ __volatile__ ("pxor %mm4, %mm4;" /* zero mm4 */ );

  238. 

  239.     for (y = v_size; --y >= 0; ) {

  240. 	uint8_t *_image = image;

  241. 	uint8_t *_py = py;

  242. 	uint8_t *_pu = pu;

  243. 	uint8_t *_pv = pv;

  244. 	int internal_h_size= h_size;

  245. 	int aligned_h_size= (h_size+7)&~7;

  246. 

  247. 	if(rgb_stride >= aligned_h_size*2) internal_h_size= aligned_h_size;

  248. 

  249. 	b5Dither= dither8[y&1];

  250. 	g6Dither= dither4[y&1];

  251. 	g5Dither= dither8[y&1];

  252. 	r5Dither= dither8[(y+1)&1];

  253. 

  254. 	/* load data for start of next scan line */

  255. 	__asm__ __volatile__ (

  256. 		 "movd (%1), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */

  257. 		 "movd (%2), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */

  258. 		 "movq (%0), %%mm6;" /* Load 8  Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */

  259. 

  260. 		 : : "r" (_py), "r" (_pu), "r" (_pv));

  261. 

  262. 	for (x = internal_h_size >> 3; --x >= 0; ) {

  263. 	    /* this mmx assembly code deals with SINGLE scan line at a time, it convert 8

  264. 	       pixels in each iteration */

  265. 

  266. 	    __asm__ __volatile__ (

  267. YUV2RGB

  268. 

  269. #ifdef DITHER1XBPP

  270. 			"paddusb "MANGLE(b5Dither)", %%mm0	\n\t"

  271. 			"paddusb "MANGLE(g5Dither)", %%mm2	\n\t"

  272. 			"paddusb "MANGLE(r5Dither)", %%mm1	\n\t"

  273. #endif

  274. 

  275. 		     /* mask unneeded bits off */

  276. 		     "pand "MANGLE(mmx_redmask)", %%mm0;" /* b7b6b5b4 b3_0_0_0 b7b6b5b4 b3_0_0_0 */

  277. 		     "pand "MANGLE(mmx_redmask)", %%mm2;" /* g7g6g5g4 g3_0_0_0 g7g6g5g4 g3_0_0_0 */

  278. 		     "pand "MANGLE(mmx_redmask)", %%mm1;" /* r7r6r5r4 r3_0_0_0 r7r6r5r4 r3_0_0_0 */

  279. 

  280. 		     "psrlw $3,%%mm0;" /* 0_0_0_b7 b6b5b4b3 0_0_0_b7 b6b5b4b3 */

  281. 		     "psrlw $1,%%mm1;"            /* 0_r7r6r5  r4r3_0_0 0_r7r6r5 r4r3_0_0 */

  282. 		     "pxor %%mm4, %%mm4;" /* zero mm4 */

  283. 

  284. 		     "movq %%mm0, %%mm5;" /* Copy B7-B0 */

  285. 		     "movq %%mm2, %%mm7;" /* Copy G7-G0 */

  286. 

  287. 		     /* convert rgb24 plane to rgb16 pack for pixel 0-3 */

  288. 		     "punpcklbw %%mm4, %%mm2;" /* 0_0_0_0 0_0_0_0 g7g6g5g4 g3_0_0_0 */

  289. 		     "punpcklbw %%mm1, %%mm0;" /* r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3 */

  290. 

  291. 		     "psllw $2, %%mm2;" /* 0_0_0_0 0_0_g7g6 g5g4g3_0 0_0_0_0 */

  292. 		     "por %%mm2, %%mm0;" /* 0_r7r6r5 r4r3g7g6 g5g4g3b7 b6b5b4b3 */

  293. 

  294. 		     "movq 8 (%0), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */

  295. 		     MOVNTQ " %%mm0, (%3);" /* store pixel 0-3 */

  296. 

  297. 		     /* convert rgb24 plane to rgb16 pack for pixel 0-3 */

  298. 		     "punpckhbw %%mm4, %%mm7;" /* 0_0_0_0 0_0_0_0 0_g7g6g5 g4g3_0_0 */

  299. 		     "punpckhbw %%mm1, %%mm5;" /* r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3 */

  300. 

  301. 		     "psllw $2, %%mm7;" /* 0_0_0_0 0_0_g7g6 g5g4g3_0 0_0_0_0 */

  302. 		     "movd 4 (%1), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */

  303. 

  304. 		     "por %%mm7, %%mm5;" /* 0_r7r6r5 r4r3g7g6 g5g4g3b7 b6b5b4b3 */

  305. 		     "movd 4 (%2), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */

  306. 

  307. 		     MOVNTQ " %%mm5, 8 (%3);" /* store pixel 4-7 */

  308. 		     : : "r" (_py), "r" (_pu), "r" (_pv), "r" (_image));

  309. 

  310. 	    _py += 8;

  311. 	    _pu += 4;

  312. 	    _pv += 4;

  313. 	    _image += 16;

  314. 	}

  315. 

  316. 	if (!even) {

  317. 	    pu += uv_stride;

  318. 	    pv += uv_stride;

  319. 	}

  320. 

  321. 	py += y_stride;

  322. 	image += rgb_stride;

  323. 

  324. 	even = (!even);

  325.     }

  326. 

  327.     __asm__ __volatile__ (EMMS);

  328. }

  329. 

  330. static inline void RENAME(yuv420_rgb24) (uint8_t * image, uint8_t * py,

  331. 			      uint8_t * pu, uint8_t * pv,

  332. 			      unsigned h_size, unsigned v_size,

  333. 			      unsigned rgb_stride, unsigned y_stride, unsigned uv_stride)

  334. {

  335.     int even = 1;

  336.     int x, y;

  337. 

  338.     __asm__ __volatile__ ("pxor %mm4, %mm4;" /* zero mm4 */ );

  339. 

  340.     for (y = v_size; --y >= 0; ) {

  341. 	uint8_t *_image = image;

  342. 	uint8_t *_py = py;

  343. 	uint8_t *_pu = pu;

  344. 	uint8_t *_pv = pv;

  345. 	int internal_h_size= h_size;

  346. 	int aligned_h_size= (h_size+7)&~7;

  347. 

  348. 	if(rgb_stride >= aligned_h_size*3) internal_h_size= aligned_h_size;

  349. 

  350. 	/* load data for start of next scan line */

  351. 	__asm__ __volatile__ (

  352. 		 "movd (%1), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */

  353. 		 "movd (%2), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */

  354. 		 "movq (%0), %%mm6;" /* Load 8  Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */

  355. 

  356. 		 : : "r" (_py), "r" (_pu), "r" (_pv));

  357. 

  358. 	for (x = internal_h_size >> 3; --x >= 0; ) {

  359. 	    /* this mmx assembly code deals with SINGLE scan line at a time, it convert 8

  360. 	       pixels in each iteration */

  361. 

  362. 	    __asm__ __volatile__ (

  363. YUV2RGB

  364. 	/* mm0=B, %%mm2=G, %%mm1=R */

  365. #ifdef HAVE_MMX2

  366. 			"movq "MANGLE(M24A)", %%mm4	\n\t"

  367. 			"movq "MANGLE(M24C)", %%mm7	\n\t"

  368. 			"pshufw $0x50, %%mm0, %%mm5	\n\t" /* B3 B2 B3 B2  B1 B0 B1 B0 */

  369. 			"pshufw $0x50, %%mm2, %%mm3	\n\t" /* G3 G2 G3 G2  G1 G0 G1 G0 */

  370. 			"pshufw $0x00, %%mm1, %%mm6	\n\t" /* R1 R0 R1 R0  R1 R0 R1 R0 */

  371. 

  372. 			"pand %%mm4, %%mm5		\n\t" /*    B2        B1       B0 */

  373. 			"pand %%mm4, %%mm3		\n\t" /*    G2        G1       G0 */

  374. 			"pand %%mm7, %%mm6		\n\t" /*       R1        R0       */

  375. 

  376. 			"psllq $8, %%mm3		\n\t" /* G2        G1       G0    */

  377. 			"por %%mm5, %%mm6		\n\t"

  378. 			"por %%mm3, %%mm6		\n\t"

  379. 			MOVNTQ" %%mm6, (%3)		\n\t"

  380. 

  381. 			"psrlq $8, %%mm2		\n\t" /* 00 G7 G6 G5  G4 G3 G2 G1 */

  382. 			"pshufw $0xA5, %%mm0, %%mm5	\n\t" /* B5 B4 B5 B4  B3 B2 B3 B2 */

  383. 			"pshufw $0x55, %%mm2, %%mm3	\n\t" /* G4 G3 G4 G3  G4 G3 G4 G3 */

  384. 			"pshufw $0xA5, %%mm1, %%mm6	\n\t" /* R5 R4 R5 R4  R3 R2 R3 R2 */

  385. 

  386. 			"pand "MANGLE(M24B)", %%mm5	\n\t" /* B5       B4        B3    */

  387. 			"pand %%mm7, %%mm3		\n\t" /*       G4        G3       */

  388. 			"pand %%mm4, %%mm6		\n\t" /*    R4        R3       R2 */

  389. 

  390. 			"por %%mm5, %%mm3		\n\t" /* B5    G4 B4     G3 B3    */

  391. 			"por %%mm3, %%mm6		\n\t"

  392. 			MOVNTQ" %%mm6, 8(%3)		\n\t"

  393. 

  394. 			"pshufw $0xFF, %%mm0, %%mm5	\n\t" /* B7 B6 B7 B6  B7 B6 B6 B7 */

  395. 			"pshufw $0xFA, %%mm2, %%mm3	\n\t" /* 00 G7 00 G7  G6 G5 G6 G5 */

  396. 			"pshufw $0xFA, %%mm1, %%mm6	\n\t" /* R7 R6 R7 R6  R5 R4 R5 R4 */

  397. 			"movd 4 (%1), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */

  398. 

  399. 			"pand %%mm7, %%mm5		\n\t" /*       B7        B6       */

  400. 			"pand %%mm4, %%mm3		\n\t" /*    G7        G6       G5 */

  401. 			"pand "MANGLE(M24B)", %%mm6	\n\t" /* R7       R6        R5    */

  402. 			"movd 4 (%2), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */

  403. \

  404. 			"por %%mm5, %%mm3		\n\t"

  405. 			"por %%mm3, %%mm6		\n\t"

  406. 			MOVNTQ" %%mm6, 16(%3)		\n\t"

  407. 			"movq 8 (%0), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */

  408. 			"pxor %%mm4, %%mm4		\n\t"

  409. 

  410. #else

  411. 

  412. 			"pxor %%mm4, %%mm4		\n\t"

  413. 			"movq %%mm0, %%mm5		\n\t" /* B */

  414. 			"movq %%mm1, %%mm6		\n\t" /* R */

  415. 			"punpcklbw %%mm2, %%mm0		\n\t" /* GBGBGBGB 0 */

  416. 			"punpcklbw %%mm4, %%mm1		\n\t" /* 0R0R0R0R 0 */

  417. 			"punpckhbw %%mm2, %%mm5		\n\t" /* GBGBGBGB 2 */

  418. 			"punpckhbw %%mm4, %%mm6		\n\t" /* 0R0R0R0R 2 */

  419. 			"movq %%mm0, %%mm7		\n\t" /* GBGBGBGB 0 */

  420. 			"movq %%mm5, %%mm3		\n\t" /* GBGBGBGB 2 */

  421. 			"punpcklwd %%mm1, %%mm7		\n\t" /* 0RGB0RGB 0 */

  422. 			"punpckhwd %%mm1, %%mm0		\n\t" /* 0RGB0RGB 1 */

  423. 			"punpcklwd %%mm6, %%mm5		\n\t" /* 0RGB0RGB 2 */

  424. 			"punpckhwd %%mm6, %%mm3		\n\t" /* 0RGB0RGB 3 */

  425. 

  426. 			"movq %%mm7, %%mm2		\n\t" /* 0RGB0RGB 0 */

  427. 			"movq %%mm0, %%mm6		\n\t" /* 0RGB0RGB 1 */

  428. 			"movq %%mm5, %%mm1		\n\t" /* 0RGB0RGB 2 */

  429. 			"movq %%mm3, %%mm4		\n\t" /* 0RGB0RGB 3 */

  430. 

  431. 			"psllq $40, %%mm7		\n\t" /* RGB00000 0 */

  432. 			"psllq $40, %%mm0		\n\t" /* RGB00000 1 */

  433. 			"psllq $40, %%mm5		\n\t" /* RGB00000 2 */

  434. 			"psllq $40, %%mm3		\n\t" /* RGB00000 3 */

  435. 

  436. 			"punpckhdq %%mm2, %%mm7		\n\t" /* 0RGBRGB0 0 */

  437. 			"punpckhdq %%mm6, %%mm0		\n\t" /* 0RGBRGB0 1 */

  438. 			"punpckhdq %%mm1, %%mm5		\n\t" /* 0RGBRGB0 2 */

  439. 			"punpckhdq %%mm4, %%mm3		\n\t" /* 0RGBRGB0 3 */

  440. 

  441. 			"psrlq $8, %%mm7		\n\t" /* 00RGBRGB 0 */

  442. 			"movq %%mm0, %%mm6		\n\t" /* 0RGBRGB0 1 */

  443. 			"psllq $40, %%mm0		\n\t" /* GB000000 1 */

  444. 			"por %%mm0, %%mm7		\n\t" /* GBRGBRGB 0 */

  445. 			MOVNTQ" %%mm7, (%3)		\n\t"

  446. 

  447. 			"movd 4 (%1), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */

  448. 

  449. 			"psrlq $24, %%mm6		\n\t" /* 0000RGBR 1 */

  450. 			"movq %%mm5, %%mm1		\n\t" /* 0RGBRGB0 2 */

  451. 			"psllq $24, %%mm5		\n\t" /* BRGB0000 2 */

  452. 			"por %%mm5, %%mm6		\n\t" /* BRGBRGBR 1 */

  453. 			MOVNTQ" %%mm6, 8(%3)		\n\t"

  454. 

  455. 			"movq 8 (%0), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */

  456. 

  457. 			"psrlq $40, %%mm1		\n\t" /* 000000RG 2 */

  458. 			"psllq $8, %%mm3		\n\t" /* RGBRGB00 3 */

  459. 			"por %%mm3, %%mm1		\n\t" /* RGBRGBRG 2 */

  460. 			MOVNTQ" %%mm1, 16(%3)		\n\t"

  461. 

  462. 			"movd 4 (%2), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */

  463. 			"pxor %%mm4, %%mm4		\n\t"

  464. #endif

  465. 

  466. 		     : : "r" (_py), "r" (_pu), "r" (_pv), "r" (_image));

  467. 

  468. 	    _py += 8;

  469. 	    _pu += 4;

  470. 	    _pv += 4;

  471. 	    _image += 24;

  472. 	}

  473. 

  474. 	if (!even) {

  475. 	    pu += uv_stride;

  476. 	    pv += uv_stride;

  477. 	}

  478. 

  479. 	py += y_stride;

  480. 	image += rgb_stride;

  481. 

  482. 	even = (!even);

  483.     }

  484. 

  485.     __asm__ __volatile__ (EMMS);

  486. }

  487. 

  488. 

  489. static inline void RENAME(yuv420_argb32) (uint8_t * image, uint8_t * py,

  490. 			       uint8_t * pu, uint8_t * pv,

  491. 			       unsigned h_size, unsigned v_size,

  492. 			       unsigned rgb_stride, unsigned y_stride, unsigned uv_stride)

  493. {

  494.     int even = 1;

  495.     int x, y;

  496. 

  497.     __asm__ __volatile__ ("pxor %mm4, %mm4;" /* zero mm4 */ );

  498. 

  499.     for (y = v_size; --y >= 0; ) {

  500. 	uint8_t *_image = image;

  501. 	uint8_t *_py = py;

  502. 	uint8_t *_pu = pu;

  503. 	uint8_t *_pv = pv;

  504. 	int internal_h_size= h_size;

  505. 	int aligned_h_size= (h_size+7)&~7;

  506. 

  507. 	if(rgb_stride >= aligned_h_size*4) internal_h_size= aligned_h_size;

  508. 

  509. 	/* load data for start of next scan line */

  510. 	__asm__ __volatile__ 

  511. 	    (

  512. 	     "movd (%1), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */ 

  513. 	     "movd (%2), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */ 

  514. 	     "movq (%0), %%mm6;" /* Load 8  Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */ 

  515. 	     : : "r" (_py), "r" (_pu), "r" (_pv)

  516. 	     );

  517. 

  518. 	for (x = internal_h_size >> 3; --x >= 0; ) {

  519. 	    /* this mmx assembly code deals with SINGLE scan line at a time, it convert 8

  520. 	       pixels in each iteration */

  521. 	    __asm__ __volatile__ (

  522. YUV2RGB

  523. 		     /* convert RGB plane to RGB packed format,

  524. 			mm0 -> B, mm1 -> R, mm2 -> G, mm3 -> 0,

  525. 			mm4 -> GB, mm5 -> AR pixel 4-7,

  526. 			mm6 -> GB, mm7 -> AR pixel 0-3 */

  527. 		     "pxor %%mm3, %%mm3;" /* zero mm3 */

  528. 

  529. 		     "movq %%mm0, %%mm6;" /* B7 B6 B5 B4 B3 B2 B1 B0 */

  530. 		     "movq %%mm1, %%mm7;" /* R7 R6 R5 R4 R3 R2 R1 R0 */

  531. 

  532. 		     "movq %%mm0, %%mm4;" /* B7 B6 B5 B4 B3 B2 B1 B0 */

  533. 		     "movq %%mm1, %%mm5;" /* R7 R6 R5 R4 R3 R2 R1 R0 */

  534. 

  535. 		     "punpcklbw %%mm2, %%mm6;" /* G3 B3 G2 B2 G1 B1 G0 B0 */

  536. 		     "punpcklbw %%mm3, %%mm7;" /* 00 R3 00 R2 00 R1 00 R0 */

  537. 

  538. 		     "punpcklwd %%mm7, %%mm6;" /* 00 R1 B1 G1 00 R0 B0 G0 */

  539. 		     MOVNTQ " %%mm6, (%3);" /* Store ARGB1 ARGB0 */

  540. 

  541. 		     "movq %%mm0, %%mm6;" /* B7 B6 B5 B4 B3 B2 B1 B0 */

  542. 		     "punpcklbw %%mm2, %%mm6;" /* G3 B3 G2 B2 G1 B1 G0 B0 */

  543. 

  544. 		     "punpckhwd %%mm7, %%mm6;" /* 00 R3 G3 B3 00 R2 B3 G2 */

  545. 		     MOVNTQ " %%mm6, 8 (%3);" /* Store ARGB3 ARGB2 */

  546. 

  547. 		     "punpckhbw %%mm2, %%mm4;" /* G7 B7 G6 B6 G5 B5 G4 B4 */

  548. 		     "punpckhbw %%mm3, %%mm5;" /* 00 R7 00 R6 00 R5 00 R4 */

  549. 

  550. 		     "punpcklwd %%mm5, %%mm4;" /* 00 R5 B5 G5 00 R4 B4 G4 */

  551. 		     MOVNTQ " %%mm4, 16 (%3);" /* Store ARGB5 ARGB4 */

  552. 

  553. 		     "movq %%mm0, %%mm4;" /* B7 B6 B5 B4 B3 B2 B1 B0 */

  554. 		     "punpckhbw %%mm2, %%mm4;" /* G7 B7 G6 B6 G5 B5 G4 B4 */

  555. 

  556. 		     "punpckhwd %%mm5, %%mm4;" /* 00 R7 G7 B7 00 R6 B6 G6 */

  557. 		     MOVNTQ " %%mm4, 24 (%3);" /* Store ARGB7 ARGB6 */

  558. 

  559. 		     "movd 4 (%1), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */

  560. 		     "movd 4 (%2), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */

  561. 

  562. 		     "pxor %%mm4, %%mm4;" /* zero mm4 */

  563. 		     "movq 8 (%0), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */

  564. 

  565. 		     : : "r" (_py), "r" (_pu), "r" (_pv), "r" (_image));

  566. 

  567. 	    _py += 8;

  568. 	    _pu += 4;

  569. 	    _pv += 4;

  570. 	    _image += 32;

  571. 	}

  572. 

  573. 	if (!even) {

  574. 	    pu += uv_stride;

  575. 	    pv += uv_stride;

  576. 	}

  577. 

  578. 	py += y_stride;

  579. 	image += rgb_stride;

  580. 

  581. 	even = (!even);

  582.     }

  583. 

  584.     __asm__ __volatile__ (EMMS);

  585. }

  586. 

  587. yuv2rgb_fun RENAME(yuv2rgb_init) (unsigned bpp, int mode)

  588. {

  589.     if (bpp == 15 && mode == MODE_RGB) return RENAME(yuv420_rgb15);

  590.     if (bpp == 16 && mode == MODE_RGB) return RENAME(yuv420_rgb16);

  591.     if (bpp == 24 && mode == MODE_RGB) return RENAME(yuv420_rgb24);

  592.     if (bpp == 32 && mode == MODE_RGB) return RENAME(yuv420_argb32);

  593.     return NULL; // Fallback to C.

  594. }