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FFmpeg/postproc/swscale.c

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  1. 

  2. // Software scaling and colorspace conversion routines for MPlayer

  3. 

  4. // Orginal C implementation by A'rpi/ESP-team <arpi@thot.banki.hu>

  5. // current version mostly by Michael Niedermayer (michaelni@gmx.at)

  6. // the parts written by michael are under GNU GPL

  7. 

  8. #include <inttypes.h>

  9. #include <string.h>

  10. #include "../config.h"

  11. #include "swscale.h"

  12. #include "../mmx_defs.h"

  13. #undef MOVNTQ

  14. 

  15. //#undef HAVE_MMX2

  16. //#undef HAVE_MMX

  17. //#undef ARCH_X86

  18. #define DITHER1XBPP

  19. int fullUVIpol=0;

  20. //disables the unscaled height version

  21. int allwaysIpol=0;

  22. 

  23. #define RET 0xC3 //near return opcode

  24. /*

  25. NOTES

  26. 

  27. known BUGS with known cause (no bugreports please!, but patches are welcome :) )

  28. horizontal MMX2 scaler reads 1-7 samples too much (might cause a sig11)

  29. 

  30. Supported output formats BGR15 BGR16 BGR24 BGR32

  31. BGR15 & BGR16 MMX verions support dithering

  32. Special versions: fast Y 1:1 scaling (no interpolation in y direction)

  33. 

  34. TODO

  35. more intelligent missalignment avoidance for the horizontal scaler

  36. */

  37. 

  38. #define ABS(a) ((a) > 0 ? (a) : (-(a)))

  39. #define MIN(a,b) ((a) > (b) ? (b) : (a))

  40. #define MAX(a,b) ((a) < (b) ? (b) : (a))

  41. 

  42. #ifdef HAVE_MMX2

  43. #define PAVGB(a,b) "pavgb " #a ", " #b " \n\t"

  44. #elif defined (HAVE_3DNOW)

  45. #define PAVGB(a,b) "pavgusb " #a ", " #b " \n\t"

  46. #endif

  47. 

  48. #ifdef HAVE_MMX2

  49. #define MOVNTQ(a,b) "movntq " #a ", " #b " \n\t"

  50. #else

  51. #define MOVNTQ(a,b) "movq " #a ", " #b " \n\t"

  52. #endif

  53. 

  54. 

  55. #ifdef HAVE_MMX

  56. static uint64_t __attribute__((aligned(8))) yCoeff=    0x2568256825682568LL;

  57. static uint64_t __attribute__((aligned(8))) vrCoeff=   0x3343334333433343LL;

  58. static uint64_t __attribute__((aligned(8))) ubCoeff=   0x40cf40cf40cf40cfLL;

  59. static uint64_t __attribute__((aligned(8))) vgCoeff=   0xE5E2E5E2E5E2E5E2LL;

  60. static uint64_t __attribute__((aligned(8))) ugCoeff=   0xF36EF36EF36EF36ELL;

  61. static uint64_t __attribute__((aligned(8))) w400=      0x0400040004000400LL;

  62. static uint64_t __attribute__((aligned(8))) w80=       0x0080008000800080LL;

  63. static uint64_t __attribute__((aligned(8))) w10=       0x0010001000100010LL;

  64. static uint64_t __attribute__((aligned(8))) bm00001111=0x00000000FFFFFFFFLL;

  65. static uint64_t __attribute__((aligned(8))) bm00000111=0x0000000000FFFFFFLL;

  66. static uint64_t __attribute__((aligned(8))) bm11111000=0xFFFFFFFFFF000000LL;

  67. 

  68. static uint64_t __attribute__((aligned(8))) b16Dither= 0x0004000400040004LL;

  69. static uint64_t __attribute__((aligned(8))) b16Dither1=0x0004000400040004LL;

  70. static uint64_t __attribute__((aligned(8))) b16Dither2=0x0602060206020602LL;

  71. static uint64_t __attribute__((aligned(8))) g16Dither= 0x0002000200020002LL;

  72. static uint64_t __attribute__((aligned(8))) g16Dither1=0x0002000200020002LL;

  73. static uint64_t __attribute__((aligned(8))) g16Dither2=0x0301030103010301LL;

  74. 

  75. static uint64_t __attribute__((aligned(8))) b16Mask=   0x001F001F001F001FLL;

  76. static uint64_t __attribute__((aligned(8))) g16Mask=   0x07E007E007E007E0LL;

  77. static uint64_t __attribute__((aligned(8))) r16Mask=   0xF800F800F800F800LL;

  78. static uint64_t __attribute__((aligned(8))) b15Mask=   0x001F001F001F001FLL;

  79. static uint64_t __attribute__((aligned(8))) g15Mask=   0x03E003E003E003E0LL;

  80. static uint64_t __attribute__((aligned(8))) r15Mask=   0x7C007C007C007C00LL;

  81. 

  82. static uint64_t __attribute__((aligned(8))) temp0;

  83. static uint64_t __attribute__((aligned(8))) asm_yalpha1;

  84. static uint64_t __attribute__((aligned(8))) asm_uvalpha1;

  85. #endif

  86. 

  87. // temporary storage for 4 yuv lines:

  88. // 16bit for now (mmx likes it more compact)

  89. #ifdef HAVE_MMX

  90. static uint16_t __attribute__((aligned(8))) pix_buf_y[4][2048];

  91. static uint16_t __attribute__((aligned(8))) pix_buf_uv[2][2048*2];

  92. #else

  93. static uint16_t pix_buf_y[4][2048];

  94. static uint16_t pix_buf_uv[2][2048*2];

  95. #endif

  96. 

  97. // clipping helper table for C implementations:

  98. static unsigned char clip_table[768];

  99. 

  100. // yuv->rgb conversion tables:

  101. static    int yuvtab_2568[256];

  102. static    int yuvtab_3343[256];

  103. static    int yuvtab_0c92[256];

  104. static    int yuvtab_1a1e[256];

  105. static    int yuvtab_40cf[256];

  106. 

  107. 

  108. static uint8_t funnyYCode[10000];

  109. static uint8_t funnyUVCode[10000];

  110. 

  111. static int canMMX2BeUsed=0;

  112. 

  113. #define FULL_YSCALEYUV2RGB \

  114. 		"pxor %%mm7, %%mm7		\n\t"\

  115. 		"movd %6, %%mm6			\n\t" /*yalpha1*/\

  116. 		"punpcklwd %%mm6, %%mm6		\n\t"\

  117. 		"punpcklwd %%mm6, %%mm6		\n\t"\

  118. 		"movd %7, %%mm5			\n\t" /*uvalpha1*/\

  119. 		"punpcklwd %%mm5, %%mm5		\n\t"\

  120. 		"punpcklwd %%mm5, %%mm5		\n\t"\

  121. 		"xorl %%eax, %%eax		\n\t"\

  122. 		"1:				\n\t"\

  123. 		"movq (%0, %%eax, 2), %%mm0	\n\t" /*buf0[eax]*/\

  124. 		"movq (%1, %%eax, 2), %%mm1	\n\t" /*buf1[eax]*/\

  125. 		"movq (%2, %%eax,2), %%mm2	\n\t" /* uvbuf0[eax]*/\

  126. 		"movq (%3, %%eax,2), %%mm3	\n\t" /* uvbuf1[eax]*/\

  127. 		"psubw %%mm1, %%mm0		\n\t" /* buf0[eax] - buf1[eax]*/\

  128. 		"psubw %%mm3, %%mm2		\n\t" /* uvbuf0[eax] - uvbuf1[eax]*/\

  129. 		"pmulhw %%mm6, %%mm0		\n\t" /* (buf0[eax] - buf1[eax])yalpha1>>16*/\

  130. 		"pmulhw %%mm5, %%mm2		\n\t" /* (uvbuf0[eax] - uvbuf1[eax])uvalpha1>>16*/\

  131. 		"psraw $4, %%mm1		\n\t" /* buf0[eax] - buf1[eax] >>4*/\

  132. 		"movq 4096(%2, %%eax,2), %%mm4	\n\t" /* uvbuf0[eax+2048]*/\

  133. 		"psraw $4, %%mm3		\n\t" /* uvbuf0[eax] - uvbuf1[eax] >>4*/\

  134. 		"paddw %%mm0, %%mm1		\n\t" /* buf0[eax]yalpha1 + buf1[eax](1-yalpha1) >>16*/\

  135. 		"movq 4096(%3, %%eax,2), %%mm0	\n\t" /* uvbuf1[eax+2048]*/\

  136. 		"paddw %%mm2, %%mm3		\n\t" /* uvbuf0[eax]uvalpha1 - uvbuf1[eax](1-uvalpha1)*/\

  137. 		"psubw %%mm0, %%mm4		\n\t" /* uvbuf0[eax+2048] - uvbuf1[eax+2048]*/\

  138. 		"psubw w80, %%mm1		\n\t" /* 8(Y-16)*/\

  139. 		"psubw w400, %%mm3		\n\t" /* 8(U-128)*/\

  140. 		"pmulhw yCoeff, %%mm1		\n\t"\

  141. \

  142. \

  143. 		"pmulhw %%mm5, %%mm4		\n\t" /* (uvbuf0[eax+2048] - uvbuf1[eax+2048])uvalpha1>>16*/\

  144. 		"movq %%mm3, %%mm2		\n\t" /* (U-128)8*/\

  145. 		"pmulhw ubCoeff, %%mm3		\n\t"\

  146. 		"psraw $4, %%mm0		\n\t" /* uvbuf0[eax+2048] - uvbuf1[eax+2048] >>4*/\

  147. 		"pmulhw ugCoeff, %%mm2		\n\t"\

  148. 		"paddw %%mm4, %%mm0		\n\t" /* uvbuf0[eax+2048]uvalpha1 - uvbuf1[eax+2048](1-uvalpha1)*/\

  149. 		"psubw w400, %%mm0		\n\t" /* (V-128)8*/\

  150. \

  151. \

  152. 		"movq %%mm0, %%mm4		\n\t" /* (V-128)8*/\

  153. 		"pmulhw vrCoeff, %%mm0		\n\t"\

  154. 		"pmulhw vgCoeff, %%mm4		\n\t"\

  155. 		"paddw %%mm1, %%mm3		\n\t" /* B*/\

  156. 		"paddw %%mm1, %%mm0		\n\t" /* R*/\

  157. 		"packuswb %%mm3, %%mm3		\n\t"\

  158. \

  159. 		"packuswb %%mm0, %%mm0		\n\t"\

  160. 		"paddw %%mm4, %%mm2		\n\t"\

  161. 		"paddw %%mm2, %%mm1		\n\t" /* G*/\

  162. \

  163. 		"packuswb %%mm1, %%mm1		\n\t"

  164. 

  165. #define YSCALEYUV2RGB \

  166. 		"movd %6, %%mm6			\n\t" /*yalpha1*/\

  167. 		"punpcklwd %%mm6, %%mm6		\n\t"\

  168. 		"punpcklwd %%mm6, %%mm6		\n\t"\

  169. 		"movq %%mm6, asm_yalpha1	\n\t"\

  170. 		"movd %7, %%mm5			\n\t" /*uvalpha1*/\

  171. 		"punpcklwd %%mm5, %%mm5		\n\t"\

  172. 		"punpcklwd %%mm5, %%mm5		\n\t"\

  173. 		"movq %%mm5, asm_uvalpha1	\n\t"\

  174. 		"xorl %%eax, %%eax		\n\t"\

  175. 		"1:				\n\t"\

  176. 		"movq (%2, %%eax), %%mm2	\n\t" /* uvbuf0[eax]*/\

  177. 		"movq (%3, %%eax), %%mm3	\n\t" /* uvbuf1[eax]*/\

  178. 		"movq 4096(%2, %%eax), %%mm5	\n\t" /* uvbuf0[eax+2048]*/\

  179. 		"movq 4096(%3, %%eax), %%mm4	\n\t" /* uvbuf1[eax+2048]*/\

  180. 		"psubw %%mm3, %%mm2		\n\t" /* uvbuf0[eax] - uvbuf1[eax]*/\

  181. 		"psubw %%mm4, %%mm5		\n\t" /* uvbuf0[eax+2048] - uvbuf1[eax+2048]*/\

  182. 		"movq asm_uvalpha1, %%mm0	\n\t"\

  183. 		"pmulhw %%mm0, %%mm2		\n\t" /* (uvbuf0[eax] - uvbuf1[eax])uvalpha1>>16*/\

  184. 		"pmulhw %%mm0, %%mm5		\n\t" /* (uvbuf0[eax+2048] - uvbuf1[eax+2048])uvalpha1>>16*/\

  185. 		"psraw $4, %%mm3		\n\t" /* uvbuf0[eax] - uvbuf1[eax] >>4*/\

  186. 		"psraw $4, %%mm4		\n\t" /* uvbuf0[eax+2048] - uvbuf1[eax+2048] >>4*/\

  187. 		"paddw %%mm2, %%mm3		\n\t" /* uvbuf0[eax]uvalpha1 - uvbuf1[eax](1-uvalpha1)*/\

  188. 		"paddw %%mm5, %%mm4		\n\t" /* uvbuf0[eax+2048]uvalpha1 - uvbuf1[eax+2048](1-uvalpha1)*/\

  189. 		"psubw w400, %%mm3		\n\t" /* (U-128)8*/\

  190. 		"psubw w400, %%mm4		\n\t" /* (V-128)8*/\

  191. 		"movq %%mm3, %%mm2		\n\t" /* (U-128)8*/\

  192. 		"movq %%mm4, %%mm5		\n\t" /* (V-128)8*/\

  193. 		"pmulhw ugCoeff, %%mm3		\n\t"\

  194. 		"pmulhw vgCoeff, %%mm4		\n\t"\

  195. 	/* mm2=(U-128)8, mm3=ug, mm4=vg mm5=(V-128)8 */\

  196. 		"movq (%0, %%eax, 2), %%mm0	\n\t" /*buf0[eax]*/\

  197. 		"movq (%1, %%eax, 2), %%mm1	\n\t" /*buf1[eax]*/\

  198. 		"movq 8(%0, %%eax, 2), %%mm6	\n\t" /*buf0[eax]*/\

  199. 		"movq 8(%1, %%eax, 2), %%mm7	\n\t" /*buf1[eax]*/\

  200. 		"psubw %%mm1, %%mm0		\n\t" /* buf0[eax] - buf1[eax]*/\

  201. 		"psubw %%mm7, %%mm6		\n\t" /* buf0[eax] - buf1[eax]*/\

  202. 		"pmulhw asm_yalpha1, %%mm0	\n\t" /* (buf0[eax] - buf1[eax])yalpha1>>16*/\

  203. 		"pmulhw asm_yalpha1, %%mm6	\n\t" /* (buf0[eax] - buf1[eax])yalpha1>>16*/\

  204. 		"psraw $4, %%mm1		\n\t" /* buf0[eax] - buf1[eax] >>4*/\

  205. 		"psraw $4, %%mm7		\n\t" /* buf0[eax] - buf1[eax] >>4*/\

  206. 		"paddw %%mm0, %%mm1		\n\t" /* buf0[eax]yalpha1 + buf1[eax](1-yalpha1) >>16*/\

  207. 		"paddw %%mm6, %%mm7		\n\t" /* buf0[eax]yalpha1 + buf1[eax](1-yalpha1) >>16*/\

  208. 		"pmulhw ubCoeff, %%mm2		\n\t"\

  209. 		"pmulhw vrCoeff, %%mm5		\n\t"\

  210. 		"psubw w80, %%mm1		\n\t" /* 8(Y-16)*/\

  211. 		"psubw w80, %%mm7		\n\t" /* 8(Y-16)*/\

  212. 		"pmulhw yCoeff, %%mm1		\n\t"\

  213. 		"pmulhw yCoeff, %%mm7		\n\t"\

  214. 	/* mm1= Y1, mm2=ub, mm3=ug, mm4=vg mm5=vr, mm7=Y2 */\

  215. 		"paddw %%mm3, %%mm4		\n\t"\

  216. 		"movq %%mm2, %%mm0		\n\t"\

  217. 		"movq %%mm5, %%mm6		\n\t"\

  218. 		"movq %%mm4, %%mm3		\n\t"\

  219. 		"punpcklwd %%mm2, %%mm2		\n\t"\

  220. 		"punpcklwd %%mm5, %%mm5		\n\t"\

  221. 		"punpcklwd %%mm4, %%mm4		\n\t"\

  222. 		"paddw %%mm1, %%mm2		\n\t"\

  223. 		"paddw %%mm1, %%mm5		\n\t"\

  224. 		"paddw %%mm1, %%mm4		\n\t"\

  225. 		"punpckhwd %%mm0, %%mm0		\n\t"\

  226. 		"punpckhwd %%mm6, %%mm6		\n\t"\

  227. 		"punpckhwd %%mm3, %%mm3		\n\t"\

  228. 		"paddw %%mm7, %%mm0		\n\t"\

  229. 		"paddw %%mm7, %%mm6		\n\t"\

  230. 		"paddw %%mm7, %%mm3		\n\t"\

  231. 		/* mm0=B1, mm2=B2, mm3=G2, mm4=G1, mm5=R1, mm6=R2 */\

  232. 		"packuswb %%mm0, %%mm2		\n\t"\

  233. 		"packuswb %%mm6, %%mm5		\n\t"\

  234. 		"packuswb %%mm3, %%mm4		\n\t"\

  235. 		"pxor %%mm7, %%mm7		\n\t"

  236. 

  237. #define YSCALEYUV2RGB1 \

  238. 		"xorl %%eax, %%eax		\n\t"\

  239. 		"1:				\n\t"\

  240. 		"movq (%2, %%eax), %%mm3	\n\t" /* uvbuf0[eax]*/\

  241. 		"movq 4096(%2, %%eax), %%mm4	\n\t" /* uvbuf0[eax+2048]*/\

  242. 		"psraw $4, %%mm3		\n\t" /* uvbuf0[eax] - uvbuf1[eax] >>4*/\

  243. 		"psraw $4, %%mm4		\n\t" /* uvbuf0[eax+2048] - uvbuf1[eax+2048] >>4*/\

  244. 		"psubw w400, %%mm3		\n\t" /* (U-128)8*/\

  245. 		"psubw w400, %%mm4		\n\t" /* (V-128)8*/\

  246. 		"movq %%mm3, %%mm2		\n\t" /* (U-128)8*/\

  247. 		"movq %%mm4, %%mm5		\n\t" /* (V-128)8*/\

  248. 		"pmulhw ugCoeff, %%mm3		\n\t"\

  249. 		"pmulhw vgCoeff, %%mm4		\n\t"\

  250. 	/* mm2=(U-128)8, mm3=ug, mm4=vg mm5=(V-128)8 */\

  251. 		"movq (%1, %%eax, 2), %%mm1	\n\t" /*buf0[eax]*/\

  252. 		"movq 8(%1, %%eax, 2), %%mm7	\n\t" /*buf0[eax]*/\

  253. 		"psraw $4, %%mm1		\n\t" /* buf0[eax] - buf1[eax] >>4*/\

  254. 		"psraw $4, %%mm7		\n\t" /* buf0[eax] - buf1[eax] >>4*/\

  255. 		"pmulhw ubCoeff, %%mm2		\n\t"\

  256. 		"pmulhw vrCoeff, %%mm5		\n\t"\

  257. 		"psubw w80, %%mm1		\n\t" /* 8(Y-16)*/\

  258. 		"psubw w80, %%mm7		\n\t" /* 8(Y-16)*/\

  259. 		"pmulhw yCoeff, %%mm1		\n\t"\

  260. 		"pmulhw yCoeff, %%mm7		\n\t"\

  261. 	/* mm1= Y1, mm2=ub, mm3=ug, mm4=vg mm5=vr, mm7=Y2 */\

  262. 		"paddw %%mm3, %%mm4		\n\t"\

  263. 		"movq %%mm2, %%mm0		\n\t"\

  264. 		"movq %%mm5, %%mm6		\n\t"\

  265. 		"movq %%mm4, %%mm3		\n\t"\

  266. 		"punpcklwd %%mm2, %%mm2		\n\t"\

  267. 		"punpcklwd %%mm5, %%mm5		\n\t"\

  268. 		"punpcklwd %%mm4, %%mm4		\n\t"\

  269. 		"paddw %%mm1, %%mm2		\n\t"\

  270. 		"paddw %%mm1, %%mm5		\n\t"\

  271. 		"paddw %%mm1, %%mm4		\n\t"\

  272. 		"punpckhwd %%mm0, %%mm0		\n\t"\

  273. 		"punpckhwd %%mm6, %%mm6		\n\t"\

  274. 		"punpckhwd %%mm3, %%mm3		\n\t"\

  275. 		"paddw %%mm7, %%mm0		\n\t"\

  276. 		"paddw %%mm7, %%mm6		\n\t"\

  277. 		"paddw %%mm7, %%mm3		\n\t"\

  278. 		/* mm0=B1, mm2=B2, mm3=G2, mm4=G1, mm5=R1, mm6=R2 */\

  279. 		"packuswb %%mm0, %%mm2		\n\t"\

  280. 		"packuswb %%mm6, %%mm5		\n\t"\

  281. 		"packuswb %%mm3, %%mm4		\n\t"\

  282. 		"pxor %%mm7, %%mm7		\n\t"

  283. 

  284. #define WRITEBGR32 \

  285. 		/* mm2=B, %%mm4=G, %%mm5=R, %%mm7=0 */\

  286. 			"movq %%mm2, %%mm1		\n\t" /* B */\

  287. 			"movq %%mm5, %%mm6		\n\t" /* R */\

  288. 			"punpcklbw %%mm4, %%mm2		\n\t" /* GBGBGBGB 0 */\

  289. 			"punpcklbw %%mm7, %%mm5		\n\t" /* 0R0R0R0R 0 */\

  290. 			"punpckhbw %%mm4, %%mm1		\n\t" /* GBGBGBGB 2 */\

  291. 			"punpckhbw %%mm7, %%mm6		\n\t" /* 0R0R0R0R 2 */\

  292. 			"movq %%mm2, %%mm0		\n\t" /* GBGBGBGB 0 */\

  293. 			"movq %%mm1, %%mm3		\n\t" /* GBGBGBGB 2 */\

  294. 			"punpcklwd %%mm5, %%mm0		\n\t" /* 0RGB0RGB 0 */\

  295. 			"punpckhwd %%mm5, %%mm2		\n\t" /* 0RGB0RGB 1 */\

  296. 			"punpcklwd %%mm6, %%mm1		\n\t" /* 0RGB0RGB 2 */\

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

  298. \

  299. 			MOVNTQ(%%mm0, (%4, %%eax, 4))\

  300. 			MOVNTQ(%%mm2, 8(%4, %%eax, 4))\

  301. 			MOVNTQ(%%mm1, 16(%4, %%eax, 4))\

  302. 			MOVNTQ(%%mm3, 24(%4, %%eax, 4))\

  303. \

  304. 			"addl $8, %%eax			\n\t"\

  305. 			"cmpl %5, %%eax			\n\t"\

  306. 			" jb 1b				\n\t"

  307. 

  308. #define WRITEBGR16 \

  309. 			"movq %%mm2, %%mm1		\n\t" /* B */\

  310. 			"movq %%mm4, %%mm3		\n\t" /* G */\

  311. 			"movq %%mm5, %%mm6		\n\t" /* R */\

  312. \

  313. 			"punpcklbw %%mm7, %%mm3		\n\t" /* 0G0G0G0G */\

  314. 			"punpcklbw %%mm7, %%mm2		\n\t" /* 0B0B0B0B */\

  315. 			"punpcklbw %%mm7, %%mm5		\n\t" /* 0R0R0R0R */\

  316. \

  317. 			"psrlw $3, %%mm2		\n\t"\

  318. 			"psllw $3, %%mm3		\n\t"\

  319. 			"psllw $8, %%mm5		\n\t"\

  320. \

  321. 			"pand g16Mask, %%mm3		\n\t"\

  322. 			"pand r16Mask, %%mm5		\n\t"\

  323. \

  324. 			"por %%mm3, %%mm2		\n\t"\

  325. 			"por %%mm5, %%mm2		\n\t"\

  326. \

  327. 			"punpckhbw %%mm7, %%mm4		\n\t" /* 0G0G0G0G */\

  328. 			"punpckhbw %%mm7, %%mm1		\n\t" /* 0B0B0B0B */\

  329. 			"punpckhbw %%mm7, %%mm6		\n\t" /* 0R0R0R0R */\

  330. \

  331. 			"psrlw $3, %%mm1		\n\t"\

  332. 			"psllw $3, %%mm4		\n\t"\

  333. 			"psllw $8, %%mm6		\n\t"\

  334. \

  335. 			"pand g16Mask, %%mm4		\n\t"\

  336. 			"pand r16Mask, %%mm6		\n\t"\

  337. \

  338. 			"por %%mm4, %%mm1		\n\t"\

  339. 			"por %%mm6, %%mm1		\n\t"\

  340. \

  341. 			MOVNTQ(%%mm2, (%4, %%eax, 2))\

  342. 			MOVNTQ(%%mm1, 8(%4, %%eax, 2))\

  343. \

  344. 			"addl $8, %%eax			\n\t"\

  345. 			"cmpl %5, %%eax			\n\t"\

  346. 			" jb 1b				\n\t"

  347. 

  348. #define WRITEBGR15 \

  349. 			"movq %%mm2, %%mm1		\n\t" /* B */\

  350. 			"movq %%mm4, %%mm3		\n\t" /* G */\

  351. 			"movq %%mm5, %%mm6		\n\t" /* R */\

  352. \

  353. 			"punpcklbw %%mm7, %%mm3		\n\t" /* 0G0G0G0G */\

  354. 			"punpcklbw %%mm7, %%mm2		\n\t" /* 0B0B0B0B */\

  355. 			"punpcklbw %%mm7, %%mm5		\n\t" /* 0R0R0R0R */\

  356. \

  357. 			"psrlw $3, %%mm2		\n\t"\

  358. 			"psllw $2, %%mm3		\n\t"\

  359. 			"psllw $7, %%mm5		\n\t"\

  360. \

  361. 			"pand g15Mask, %%mm3		\n\t"\

  362. 			"pand r15Mask, %%mm5		\n\t"\

  363. \

  364. 			"por %%mm3, %%mm2		\n\t"\

  365. 			"por %%mm5, %%mm2		\n\t"\

  366. \

  367. 			"punpckhbw %%mm7, %%mm4		\n\t" /* 0G0G0G0G */\

  368. 			"punpckhbw %%mm7, %%mm1		\n\t" /* 0B0B0B0B */\

  369. 			"punpckhbw %%mm7, %%mm6		\n\t" /* 0R0R0R0R */\

  370. \

  371. 			"psrlw $3, %%mm1		\n\t"\

  372. 			"psllw $2, %%mm4		\n\t"\

  373. 			"psllw $7, %%mm6		\n\t"\

  374. \

  375. 			"pand g15Mask, %%mm4		\n\t"\

  376. 			"pand r15Mask, %%mm6		\n\t"\

  377. \

  378. 			"por %%mm4, %%mm1		\n\t"\

  379. 			"por %%mm6, %%mm1		\n\t"\

  380. \

  381. 			MOVNTQ(%%mm2, (%4, %%eax, 2))\

  382. 			MOVNTQ(%%mm1, 8(%4, %%eax, 2))\

  383. \

  384. 			"addl $8, %%eax			\n\t"\

  385. 			"cmpl %5, %%eax			\n\t"\

  386. 			" jb 1b				\n\t"

  387. // FIXME find a faster way to shuffle it to BGR24

  388. #define WRITEBGR24 \

  389. 		/* mm2=B, %%mm4=G, %%mm5=R, %%mm7=0 */\

  390. 			"movq %%mm2, %%mm1		\n\t" /* B */\

  391. 			"movq %%mm5, %%mm6		\n\t" /* R */\

  392. 			"punpcklbw %%mm4, %%mm2		\n\t" /* GBGBGBGB 0 */\

  393. 			"punpcklbw %%mm7, %%mm5		\n\t" /* 0R0R0R0R 0 */\

  394. 			"punpckhbw %%mm4, %%mm1		\n\t" /* GBGBGBGB 2 */\

  395. 			"punpckhbw %%mm7, %%mm6		\n\t" /* 0R0R0R0R 2 */\

  396. 			"movq %%mm2, %%mm0		\n\t" /* GBGBGBGB 0 */\

  397. 			"movq %%mm1, %%mm3		\n\t" /* GBGBGBGB 2 */\

  398. 			"punpcklwd %%mm5, %%mm0		\n\t" /* 0RGB0RGB 0 */\

  399. 			"punpckhwd %%mm5, %%mm2		\n\t" /* 0RGB0RGB 1 */\

  400. 			"punpcklwd %%mm6, %%mm1		\n\t" /* 0RGB0RGB 2 */\

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

  402. \

  403. 			"movq %%mm0, %%mm4		\n\t" /* 0RGB0RGB 0 */\

  404. 			"psrlq $8, %%mm0		\n\t" /* 00RGB0RG 0 */\

  405. 			"pand bm00000111, %%mm4		\n\t" /* 00000RGB 0 */\

  406. 			"pand bm11111000, %%mm0		\n\t" /* 00RGB000 0.5 */\

  407. 			"por %%mm4, %%mm0		\n\t" /* 00RGBRGB 0 */\

  408. 			"movq %%mm2, %%mm4		\n\t" /* 0RGB0RGB 1 */\

  409. 			"psllq $48, %%mm2		\n\t" /* GB000000 1 */\

  410. 			"por %%mm2, %%mm0		\n\t" /* GBRGBRGB 0 */\

  411. \

  412. 			"movq %%mm4, %%mm2		\n\t" /* 0RGB0RGB 1 */\

  413. 			"psrld $16, %%mm4		\n\t" /* 000R000R 1 */\

  414. 			"psrlq $24, %%mm2		\n\t" /* 0000RGB0 1.5 */\

  415. 			"por %%mm4, %%mm2		\n\t" /* 000RRGBR 1 */\

  416. 			"pand bm00001111, %%mm2		\n\t" /* 0000RGBR 1 */\

  417. 			"movq %%mm1, %%mm4		\n\t" /* 0RGB0RGB 2 */\

  418. 			"psrlq $8, %%mm1		\n\t" /* 00RGB0RG 2 */\

  419. 			"pand bm00000111, %%mm4		\n\t" /* 00000RGB 2 */\

  420. 			"pand bm11111000, %%mm1		\n\t" /* 00RGB000 2.5 */\

  421. 			"por %%mm4, %%mm1		\n\t" /* 00RGBRGB 2 */\

  422. 			"movq %%mm1, %%mm4		\n\t" /* 00RGBRGB 2 */\

  423. 			"psllq $32, %%mm1		\n\t" /* BRGB0000 2 */\

  424. 			"por %%mm1, %%mm2		\n\t" /* BRGBRGBR 1 */\

  425. \

  426. 			"psrlq $32, %%mm4		\n\t" /* 000000RG 2.5 */\

  427. 			"movq %%mm3, %%mm5		\n\t" /* 0RGB0RGB 3 */\

  428. 			"psrlq $8, %%mm3		\n\t" /* 00RGB0RG 3 */\

  429. 			"pand bm00000111, %%mm5		\n\t" /* 00000RGB 3 */\

  430. 			"pand bm11111000, %%mm3		\n\t" /* 00RGB000 3.5 */\

  431. 			"por %%mm5, %%mm3		\n\t" /* 00RGBRGB 3 */\

  432. 			"psllq $16, %%mm3		\n\t" /* RGBRGB00 3 */\

  433. 			"por %%mm4, %%mm3		\n\t" /* RGBRGBRG 2.5 */\

  434. \

  435. 			"leal (%%eax, %%eax, 2), %%ebx	\n\t"\

  436. 			MOVNTQ(%%mm0, (%4, %%ebx))\

  437. 			MOVNTQ(%%mm2, 8(%4, %%ebx))\

  438. 			MOVNTQ(%%mm3, 16(%4, %%ebx))\

  439. \

  440. 			"addl $8, %%eax			\n\t"\

  441. 			"cmpl %5, %%eax			\n\t"\

  442. 			" jb 1b				\n\t"

  443. 

  444. 

  445. static inline void yuv2yuv(uint16_t *buf0, uint16_t *buf1, uint16_t *uvbuf0, uint16_t *uvbuf1,

  446. 			   uint8_t *dest, uint8_t *uDest, uint8_t *vDest, int dstw, int yalpha, int uvalpha)

  447. {

  448. 	int yalpha1=yalpha^4095;

  449. 	int uvalpha1=uvalpha^4095;

  450. 	int i;

  451. 

  452. 	asm volatile ("\n\t"::: "memory");

  453. 

  454. 	for(i=0;i<dstw;i++)

  455. 	{

  456. 		((uint8_t*)dest)[0] = (buf0[i]*yalpha1+buf1[i]*yalpha)>>19;

  457. 		dest++;

  458. 	}

  459. 

  460. 	if(uvalpha != -1)

  461. 	{

  462. 		for(i=0; i<dstw/2; i++)

  463. 		{

  464. 			((uint8_t*)uDest)[0] = (uvbuf0[i]*uvalpha1+uvbuf1[i]*uvalpha)>>19;

  465. 			((uint8_t*)vDest)[0] = (uvbuf0[i+2048]*uvalpha1+uvbuf1[i+2048]*uvalpha)>>19;

  466. 			uDest++;

  467. 			vDest++;

  468. 		}

  469. 	}

  470. }

  471. 

  472. /**

  473.  * vertical scale YV12 to RGB

  474.  */

  475. static inline void yuv2rgbX(uint16_t *buf0, uint16_t *buf1, uint16_t *uvbuf0, uint16_t *uvbuf1,

  476. 			    uint8_t *dest, int dstw, int yalpha, int uvalpha, int dstbpp)

  477. {

  478. 	int yalpha1=yalpha^4095;

  479. 	int uvalpha1=uvalpha^4095;

  480. 	int i;

  481. 

  482. 	if(fullUVIpol)

  483. 	{

  484. 

  485. #ifdef HAVE_MMX

  486. 		if(dstbpp == 32)

  487. 		{

  488. 			asm volatile(

  489. 

  490. 

  491. FULL_YSCALEYUV2RGB

  492. 			"punpcklbw %%mm1, %%mm3		\n\t" // BGBGBGBG

  493. 			"punpcklbw %%mm7, %%mm0		\n\t" // R0R0R0R0

  494. 

  495. 			"movq %%mm3, %%mm1		\n\t"

  496. 			"punpcklwd %%mm0, %%mm3		\n\t" // BGR0BGR0

  497. 			"punpckhwd %%mm0, %%mm1		\n\t" // BGR0BGR0

  498. 

  499. 			MOVNTQ(%%mm3, (%4, %%eax, 4))

  500. 			MOVNTQ(%%mm1, 8(%4, %%eax, 4))

  501. 

  502. 			"addl $4, %%eax			\n\t"

  503. 			"cmpl %5, %%eax			\n\t"

  504. 			" jb 1b				\n\t"

  505. 

  506. 

  507. 			:: "r" (buf0), "r" (buf1), "r" (uvbuf0), "r" (uvbuf1), "r" (dest), "m" (dstw),

  508. 			"m" (yalpha1), "m" (uvalpha1)

  509. 			: "%eax"

  510. 			);

  511. 		}

  512. 		else if(dstbpp==24)

  513. 		{

  514. 			asm volatile(

  515. 

  516. FULL_YSCALEYUV2RGB

  517. 

  518. 								// lsb ... msb

  519. 			"punpcklbw %%mm1, %%mm3		\n\t" // BGBGBGBG

  520. 			"punpcklbw %%mm7, %%mm0		\n\t" // R0R0R0R0

  521. 

  522. 			"movq %%mm3, %%mm1		\n\t"

  523. 			"punpcklwd %%mm0, %%mm3		\n\t" // BGR0BGR0

  524. 			"punpckhwd %%mm0, %%mm1		\n\t" // BGR0BGR0

  525. 

  526. 			"movq %%mm3, %%mm2		\n\t" // BGR0BGR0

  527. 			"psrlq $8, %%mm3		\n\t" // GR0BGR00

  528. 			"pand bm00000111, %%mm2		\n\t" // BGR00000

  529. 			"pand bm11111000, %%mm3		\n\t" // 000BGR00

  530. 			"por %%mm2, %%mm3		\n\t" // BGRBGR00

  531. 			"movq %%mm1, %%mm2		\n\t"

  532. 			"psllq $48, %%mm1		\n\t" // 000000BG

  533. 			"por %%mm1, %%mm3		\n\t" // BGRBGRBG

  534. 

  535. 			"movq %%mm2, %%mm1		\n\t" // BGR0BGR0

  536. 			"psrld $16, %%mm2		\n\t" // R000R000

  537. 			"psrlq $24, %%mm1		\n\t" // 0BGR0000

  538. 			"por %%mm2, %%mm1		\n\t" // RBGRR000

  539. 

  540. 			"movl %4, %%ebx			\n\t"

  541. 			"addl %%eax, %%ebx		\n\t"

  542. 

  543. #ifdef HAVE_MMX2

  544. 			//FIXME Alignment

  545. 			"movntq %%mm3, (%%ebx, %%eax, 2)\n\t"

  546. 			"movntq %%mm1, 8(%%ebx, %%eax, 2)\n\t"

  547. #else

  548. 			"movd %%mm3, (%%ebx, %%eax, 2)	\n\t"

  549. 			"psrlq $32, %%mm3		\n\t"

  550. 			"movd %%mm3, 4(%%ebx, %%eax, 2)	\n\t"

  551. 			"movd %%mm1, 8(%%ebx, %%eax, 2)	\n\t"

  552. #endif

  553. 			"addl $4, %%eax			\n\t"

  554. 			"cmpl %5, %%eax			\n\t"

  555. 			" jb 1b				\n\t"

  556. 

  557. 			:: "r" (buf0), "r" (buf1), "r" (uvbuf0), "r" (uvbuf1), "m" (dest), "m" (dstw),

  558. 			"m" (yalpha1), "m" (uvalpha1)

  559. 			: "%eax", "%ebx"

  560. 			);

  561. 		}

  562. 		else if(dstbpp==15)

  563. 		{

  564. 			asm volatile(

  565. 

  566. FULL_YSCALEYUV2RGB

  567. #ifdef DITHER1XBPP

  568. 			"paddusb b16Dither, %%mm1	\n\t"

  569. 			"paddusb b16Dither, %%mm0	\n\t"

  570. 			"paddusb b16Dither, %%mm3	\n\t"

  571. #endif

  572. 			"punpcklbw %%mm7, %%mm1		\n\t" // 0G0G0G0G

  573. 			"punpcklbw %%mm7, %%mm3		\n\t" // 0B0B0B0B

  574. 			"punpcklbw %%mm7, %%mm0		\n\t" // 0R0R0R0R

  575. 

  576. 			"psrlw $3, %%mm3		\n\t"

  577. 			"psllw $2, %%mm1		\n\t"

  578. 			"psllw $7, %%mm0		\n\t"

  579. 			"pand g15Mask, %%mm1		\n\t"

  580. 			"pand r15Mask, %%mm0		\n\t"

  581. 

  582. 			"por %%mm3, %%mm1		\n\t"

  583. 			"por %%mm1, %%mm0		\n\t"

  584. 

  585. 			MOVNTQ(%%mm0, (%4, %%eax, 2))

  586. 

  587. 			"addl $4, %%eax			\n\t"

  588. 			"cmpl %5, %%eax			\n\t"

  589. 			" jb 1b				\n\t"

  590. 

  591. 			:: "r" (buf0), "r" (buf1), "r" (uvbuf0), "r" (uvbuf1), "r" (dest), "m" (dstw),

  592. 			"m" (yalpha1), "m" (uvalpha1)

  593. 			: "%eax"

  594. 			);

  595. 		}

  596. 		else if(dstbpp==16)

  597. 		{

  598. 			asm volatile(

  599. 

  600. FULL_YSCALEYUV2RGB

  601. #ifdef DITHER1XBPP

  602. 			"paddusb g16Dither, %%mm1	\n\t"

  603. 			"paddusb b16Dither, %%mm0	\n\t"

  604. 			"paddusb b16Dither, %%mm3	\n\t"

  605. #endif

  606. 			"punpcklbw %%mm7, %%mm1		\n\t" // 0G0G0G0G

  607. 			"punpcklbw %%mm7, %%mm3		\n\t" // 0B0B0B0B

  608. 			"punpcklbw %%mm7, %%mm0		\n\t" // 0R0R0R0R

  609. 

  610. 			"psrlw $3, %%mm3		\n\t"

  611. 			"psllw $3, %%mm1		\n\t"

  612. 			"psllw $8, %%mm0		\n\t"

  613. 			"pand g16Mask, %%mm1		\n\t"

  614. 			"pand r16Mask, %%mm0		\n\t"

  615. 

  616. 			"por %%mm3, %%mm1		\n\t"

  617. 			"por %%mm1, %%mm0		\n\t"

  618. 

  619. 			MOVNTQ(%%mm0, (%4, %%eax, 2))

  620. 

  621. 			"addl $4, %%eax			\n\t"

  622. 			"cmpl %5, %%eax			\n\t"

  623. 			" jb 1b				\n\t"

  624. 

  625. 			:: "r" (buf0), "r" (buf1), "r" (uvbuf0), "r" (uvbuf1), "r" (dest), "m" (dstw),

  626. 			"m" (yalpha1), "m" (uvalpha1)

  627. 			: "%eax"

  628. 			);

  629. 		}

  630. #else

  631. 		asm volatile ("\n\t"::: "memory");

  632. 

  633. 		if(dstbpp==32 || dstbpp==24)

  634. 		{

  635. 			for(i=0;i<dstw;i++){

  636. 				// vertical linear interpolation && yuv2rgb in a single step:

  637. 				int Y=yuvtab_2568[((buf0[i]*yalpha1+buf1[i]*yalpha)>>19)];

  638. 				int U=((uvbuf0[i]*uvalpha1+uvbuf1[i]*uvalpha)>>19);

  639. 				int V=((uvbuf0[i+2048]*uvalpha1+uvbuf1[i+2048]*uvalpha)>>19);

  640. 				dest[0]=clip_table[((Y + yuvtab_40cf[U]) >>13)];

  641. 				dest[1]=clip_table[((Y + yuvtab_1a1e[V] + yuvtab_0c92[U]) >>13)];

  642. 				dest[2]=clip_table[((Y + yuvtab_3343[V]) >>13)];

  643. 				dest+=dstbpp>>3;

  644. 			}

  645. 		}

  646. 		else if(dstbpp==16)

  647. 		{

  648. 			for(i=0;i<dstw;i++){

  649. 				// vertical linear interpolation && yuv2rgb in a single step:

  650. 				int Y=yuvtab_2568[((buf0[i]*yalpha1+buf1[i]*yalpha)>>19)];

  651. 				int U=((uvbuf0[i]*uvalpha1+uvbuf1[i]*uvalpha)>>19);

  652. 				int V=((uvbuf0[i+2048]*uvalpha1+uvbuf1[i+2048]*uvalpha)>>19);

  653. 

  654. 				((uint16_t*)dest)[0] =

  655. 					(clip_table[(Y + yuvtab_40cf[U]) >>13]>>3) |

  656. 					((clip_table[(Y + yuvtab_1a1e[V] + yuvtab_0c92[U]) >>13]<<3)&0x07E0) |

  657. 					((clip_table[(Y + yuvtab_3343[V]) >>13]<<8)&0xF800);

  658. 				dest+=2;

  659. 			}

  660. 		}

  661. 		else if(dstbpp==15)

  662. 		{

  663. 			for(i=0;i<dstw;i++){

  664. 				// vertical linear interpolation && yuv2rgb in a single step:

  665. 				int Y=yuvtab_2568[((buf0[i]*yalpha1+buf1[i]*yalpha)>>19)];

  666. 				int U=((uvbuf0[i]*uvalpha1+uvbuf1[i]*uvalpha)>>19);

  667. 				int V=((uvbuf0[i+2048]*uvalpha1+uvbuf1[i+2048]*uvalpha)>>19);

  668. 

  669. 				((uint16_t*)dest)[0] =

  670. 					(clip_table[(Y + yuvtab_40cf[U]) >>13]>>3) |

  671. 					((clip_table[(Y + yuvtab_1a1e[V] + yuvtab_0c92[U]) >>13]<<2)&0x03E0) |

  672. 					((clip_table[(Y + yuvtab_3343[V]) >>13]<<7)&0x7C00);

  673. 				dest+=2;

  674. 			}

  675. 		}

  676. #endif

  677. 	}//FULL_UV_IPOL

  678. 	else

  679. 	{

  680. #ifdef HAVE_MMX

  681. 		if(dstbpp == 32)

  682. 		{

  683. 			asm volatile(

  684. 				YSCALEYUV2RGB

  685. 				WRITEBGR32

  686. 

  687. 			:: "r" (buf0), "r" (buf1), "r" (uvbuf0), "r" (uvbuf1), "r" (dest), "m" (dstw),

  688. 			"m" (yalpha1), "m" (uvalpha1)

  689. 			: "%eax"

  690. 			);

  691. 		}

  692. 		else if(dstbpp==24)

  693. 		{

  694. 			asm volatile(

  695. 				YSCALEYUV2RGB

  696. 				WRITEBGR24

  697. 

  698. 			:: "r" (buf0), "r" (buf1), "r" (uvbuf0), "r" (uvbuf1), "r" (dest), "m" (dstw),

  699. 			"m" (yalpha1), "m" (uvalpha1)

  700. 			: "%eax", "%ebx"

  701. 			);

  702. 		}

  703. 		else if(dstbpp==15)

  704. 		{

  705. 			asm volatile(

  706. 				YSCALEYUV2RGB

  707. 		/* mm2=B, %%mm4=G, %%mm5=R, %%mm7=0 */

  708. #ifdef DITHER1XBPP

  709. 				"paddusb b16Dither, %%mm2	\n\t"

  710. 				"paddusb b16Dither, %%mm4	\n\t"

  711. 				"paddusb b16Dither, %%mm5	\n\t"

  712. #endif

  713. 

  714. 				WRITEBGR15

  715. 

  716. 			:: "r" (buf0), "r" (buf1), "r" (uvbuf0), "r" (uvbuf1), "r" (dest), "m" (dstw),

  717. 			"m" (yalpha1), "m" (uvalpha1)

  718. 			: "%eax"

  719. 			);

  720. 		}

  721. 		else if(dstbpp==16)

  722. 		{

  723. 			asm volatile(

  724. 				YSCALEYUV2RGB

  725. 		/* mm2=B, %%mm4=G, %%mm5=R, %%mm7=0 */

  726. #ifdef DITHER1XBPP

  727. 				"paddusb g16Dither, %%mm2	\n\t"

  728. 				"paddusb b16Dither, %%mm4	\n\t"

  729. 				"paddusb b16Dither, %%mm5	\n\t"

  730. #endif

  731. 

  732. 				WRITEBGR16

  733. 

  734. 			:: "r" (buf0), "r" (buf1), "r" (uvbuf0), "r" (uvbuf1), "r" (dest), "m" (dstw),

  735. 			"m" (yalpha1), "m" (uvalpha1)

  736. 			: "%eax"

  737. 			);

  738. 		}

  739. #else

  740. //FIXME unroll C loop and dont recalculate UV

  741. 		asm volatile ("\n\t"::: "memory");

  742. 

  743. 		if(dstbpp==32 || dstbpp==24)

  744. 		{

  745. 			for(i=0;i<dstw;i++){

  746. 				// vertical linear interpolation && yuv2rgb in a single step:

  747. 				int Y=yuvtab_2568[((buf0[i]*yalpha1+buf1[i]*yalpha)>>19)];

  748. 				int U=((uvbuf0[i/2]*uvalpha1+uvbuf1[i/2]*uvalpha)>>19);

  749. 				int V=((uvbuf0[i/2+2048]*uvalpha1+uvbuf1[i/2+2048]*uvalpha)>>19);

  750. 				dest[0]=clip_table[((Y + yuvtab_40cf[U]) >>13)];

  751. 				dest[1]=clip_table[((Y + yuvtab_1a1e[V] + yuvtab_0c92[U]) >>13)];

  752. 				dest[2]=clip_table[((Y + yuvtab_3343[V]) >>13)];

  753. 				dest+=dstbpp>>3;

  754. 			}

  755. 		}

  756. 		else if(dstbpp==16)

  757. 		{

  758. 			for(i=0;i<dstw;i++){

  759. 				// vertical linear interpolation && yuv2rgb in a single step:

  760. 				int Y=yuvtab_2568[((buf0[i]*yalpha1+buf1[i]*yalpha)>>19)];

  761. 				int U=((uvbuf0[i/2]*uvalpha1+uvbuf1[i/2]*uvalpha)>>19);

  762. 				int V=((uvbuf0[i/2+2048]*uvalpha1+uvbuf1[i/2+2048]*uvalpha)>>19);

  763. 

  764. 				((uint16_t*)dest)[0] =

  765. 					(clip_table[(Y + yuvtab_40cf[U]) >>13]>>3) |

  766. 					((clip_table[(Y + yuvtab_1a1e[V] + yuvtab_0c92[U]) >>13]<<3)&0x07E0) |

  767. 					((clip_table[(Y + yuvtab_3343[V]) >>13]<<8)&0xF800);

  768. 				dest+=2;

  769. 			}

  770. 		}

  771. 		else if(dstbpp==15)

  772. 		{

  773. 			for(i=0;i<dstw;i++){

  774. 				// vertical linear interpolation && yuv2rgb in a single step:

  775. 				int Y=yuvtab_2568[((buf0[i]*yalpha1+buf1[i]*yalpha)>>19)];

  776. 				int U=((uvbuf0[i/2]*uvalpha1+uvbuf1[i/2]*uvalpha)>>19);

  777. 				int V=((uvbuf0[i/2+2048]*uvalpha1+uvbuf1[i/2+2048]*uvalpha)>>19);

  778. 

  779. 				((uint16_t*)dest)[0] =

  780. 					(clip_table[(Y + yuvtab_40cf[U]) >>13]>>3) |

  781. 					((clip_table[(Y + yuvtab_1a1e[V] + yuvtab_0c92[U]) >>13]<<2)&0x03E0) |

  782. 					((clip_table[(Y + yuvtab_3343[V]) >>13]<<7)&0x7C00);

  783. 				dest+=2;

  784. 			}

  785. 		}

  786. #endif

  787. 	} //!FULL_UV_IPOL

  788. }

  789. 

  790. /**

  791.  * YV12 to RGB without scaling or interpolating

  792.  */

  793. static inline void yuv2rgb1(uint16_t *buf0, uint16_t *buf1, uint16_t *uvbuf0, uint16_t *uvbuf1,

  794. 			    uint8_t *dest, int dstw, int yalpha, int uvalpha, int dstbpp)

  795. {

  796. 	int yalpha1=yalpha^4095;

  797. 	int uvalpha1=uvalpha^4095;

  798. 	int i;

  799. 	if(fullUVIpol || allwaysIpol)

  800. 	{

  801. 		yuv2rgbX(buf0, buf1, uvbuf0, uvbuf1, dest, dstw, yalpha, uvalpha, dstbpp);

  802. 		return;

  803. 	}

  804. #ifdef HAVE_MMX

  805. 		if(dstbpp == 32)

  806. 		{

  807. 			asm volatile(

  808. 				YSCALEYUV2RGB1

  809. 				WRITEBGR32

  810. 			:: "r" (buf0), "r" (buf1), "r" (uvbuf0), "r" (uvbuf1), "r" (dest), "m" (dstw),

  811. 			"m" (yalpha1), "m" (uvalpha1)

  812. 			: "%eax"

  813. 			);

  814. 		}

  815. 		else if(dstbpp==24)

  816. 		{

  817. 			asm volatile(

  818. 				YSCALEYUV2RGB1

  819. 				WRITEBGR24

  820. 			:: "r" (buf0), "r" (buf1), "r" (uvbuf0), "r" (uvbuf1), "r" (dest), "m" (dstw),

  821. 			"m" (yalpha1), "m" (uvalpha1)

  822. 			: "%eax", "%ebx"

  823. 			);

  824. 		}

  825. 		else if(dstbpp==15)

  826. 		{

  827. 			asm volatile(

  828. 				YSCALEYUV2RGB1

  829. 		/* mm2=B, %%mm4=G, %%mm5=R, %%mm7=0 */

  830. #ifdef DITHER1XBPP

  831. 				"paddusb b16Dither, %%mm2	\n\t"

  832. 				"paddusb b16Dither, %%mm4	\n\t"

  833. 				"paddusb b16Dither, %%mm5	\n\t"

  834. #endif

  835. 				WRITEBGR15

  836. 			:: "r" (buf0), "r" (buf1), "r" (uvbuf0), "r" (uvbuf1), "r" (dest), "m" (dstw),

  837. 			"m" (yalpha1), "m" (uvalpha1)

  838. 			: "%eax"

  839. 			);

  840. 		}

  841. 		else if(dstbpp==16)

  842. 		{

  843. 			asm volatile(

  844. 				YSCALEYUV2RGB1

  845. 		/* mm2=B, %%mm4=G, %%mm5=R, %%mm7=0 */

  846. #ifdef DITHER1XBPP

  847. 				"paddusb g16Dither, %%mm2	\n\t"

  848. 				"paddusb b16Dither, %%mm4	\n\t"

  849. 				"paddusb b16Dither, %%mm5	\n\t"

  850. #endif

  851. 

  852. 				WRITEBGR16

  853. 			:: "r" (buf0), "r" (buf1), "r" (uvbuf0), "r" (uvbuf1), "r" (dest), "m" (dstw),

  854. 			"m" (yalpha1), "m" (uvalpha1)

  855. 			: "%eax"

  856. 			);

  857. 		}

  858. #else

  859. //FIXME unroll C loop and dont recalculate UV

  860. 		asm volatile ("\n\t"::: "memory");

  861. 

  862. 		if(dstbpp==32 || dstbpp==24)

  863. 		{

  864. 			for(i=0;i<dstw;i++){

  865. 				// vertical linear interpolation && yuv2rgb in a single step:

  866. 				int Y=yuvtab_2568[buf0[i]>>7];

  867. 				int U=((uvbuf0[i/2]*uvalpha1+uvbuf1[i/2]*uvalpha)>>19);

  868. 				int V=((uvbuf0[i/2+2048]*uvalpha1+uvbuf1[i/2+2048]*uvalpha)>>19);

  869. 				dest[0]=clip_table[((Y + yuvtab_40cf[U]) >>13)];

  870. 				dest[1]=clip_table[((Y + yuvtab_1a1e[V] + yuvtab_0c92[U]) >>13)];

  871. 				dest[2]=clip_table[((Y + yuvtab_3343[V]) >>13)];

  872. 				dest+=dstbpp>>3;

  873. 			}

  874. 		}

  875. 		else if(dstbpp==16)

  876. 		{

  877. 			for(i=0;i<dstw;i++){

  878. 				// vertical linear interpolation && yuv2rgb in a single step:

  879. 				int Y=yuvtab_2568[buf0[i]>>7];

  880. 				int U=((uvbuf0[i/2]*uvalpha1+uvbuf1[i/2]*uvalpha)>>19);

  881. 				int V=((uvbuf0[i/2+2048]*uvalpha1+uvbuf1[i/2+2048]*uvalpha)>>19);

  882. 

  883. 				((uint16_t*)dest)[0] =

  884. 					(clip_table[(Y + yuvtab_40cf[U]) >>13]>>3) |

  885. 					((clip_table[(Y + yuvtab_1a1e[V] + yuvtab_0c92[U]) >>13]<<3)&0x07E0) |

  886. 					((clip_table[(Y + yuvtab_3343[V]) >>13]<<8)&0xF800);

  887. 				dest+=2;

  888. 			}

  889. 		}

  890. 		else if(dstbpp==15)

  891. 		{

  892. 			for(i=0;i<dstw;i++){

  893. 				// vertical linear interpolation && yuv2rgb in a single step:

  894. 				int Y=yuvtab_2568[buf0[i]>>7];

  895. 				int U=((uvbuf0[i/2]*uvalpha1+uvbuf1[i/2]*uvalpha)>>19);

  896. 				int V=((uvbuf0[i/2+2048]*uvalpha1+uvbuf1[i/2+2048]*uvalpha)>>19);

  897. 

  898. 				((uint16_t*)dest)[0] =

  899. 					(clip_table[(Y + yuvtab_40cf[U]) >>13]>>3) |

  900. 					((clip_table[(Y + yuvtab_1a1e[V] + yuvtab_0c92[U]) >>13]<<2)&0x03E0) |

  901. 					((clip_table[(Y + yuvtab_3343[V]) >>13]<<7)&0x7C00);

  902. 				dest+=2;

  903. 			}

  904. 		}

  905. #endif

  906. }

  907. 

  908. 

  909. static inline void hyscale(uint16_t *dst, int dstWidth, uint8_t *src, int srcWidth, int xInc)

  910. {

  911. 	int i;

  912.       unsigned int xpos=0;

  913.       // *** horizontal scale Y line to temp buffer

  914. #ifdef ARCH_X86

  915. 

  916. #ifdef HAVE_MMX2

  917. 	if(canMMX2BeUsed)

  918. 	{

  919. 		asm volatile(

  920. 			"pxor %%mm7, %%mm7		\n\t"

  921. 			"pxor %%mm2, %%mm2		\n\t" // 2*xalpha

  922. 			"movd %5, %%mm6			\n\t" // xInc&0xFFFF

  923. 			"punpcklwd %%mm6, %%mm6		\n\t"

  924. 			"punpcklwd %%mm6, %%mm6		\n\t"

  925. 			"movq %%mm6, %%mm2		\n\t"

  926. 			"psllq $16, %%mm2		\n\t"

  927. 			"paddw %%mm6, %%mm2		\n\t"

  928. 			"psllq $16, %%mm2		\n\t"

  929. 			"paddw %%mm6, %%mm2		\n\t"

  930. 			"psllq $16, %%mm2		\n\t" //0,t,2t,3t		t=xInc&0xFF

  931. 			"movq %%mm2, temp0		\n\t"

  932. 			"movd %4, %%mm6			\n\t" //(xInc*4)&0xFFFF

  933. 			"punpcklwd %%mm6, %%mm6		\n\t"

  934. 			"punpcklwd %%mm6, %%mm6		\n\t"

  935. 			"xorl %%eax, %%eax		\n\t" // i

  936. 			"movl %0, %%esi			\n\t" // src

  937. 			"movl %1, %%edi			\n\t" // buf1

  938. 			"movl %3, %%edx			\n\t" // (xInc*4)>>16

  939. 			"xorl %%ecx, %%ecx		\n\t"

  940. 			"xorl %%ebx, %%ebx		\n\t"

  941. 			"movw %4, %%bx			\n\t" // (xInc*4)&0xFFFF

  942. 

  943. #define FUNNY_Y_CODE \

  944. 			PREFETCH" 1024(%%esi)		\n\t"\

  945. 			PREFETCH" 1056(%%esi)		\n\t"\

  946. 			PREFETCH" 1088(%%esi)		\n\t"\

  947. 			"call funnyYCode		\n\t"\

  948. 			"movq temp0, %%mm2		\n\t"\

  949. 			"xorl %%ecx, %%ecx		\n\t"

  950. 

  951. FUNNY_Y_CODE

  952. FUNNY_Y_CODE

  953. FUNNY_Y_CODE

  954. FUNNY_Y_CODE

  955. FUNNY_Y_CODE

  956. FUNNY_Y_CODE

  957. FUNNY_Y_CODE

  958. FUNNY_Y_CODE

  959. 

  960. 			:: "m" (src), "m" (dst), "m" (dstWidth), "m" ((xInc*4)>>16),

  961. 			"m" ((xInc*4)&0xFFFF), "m" (xInc&0xFFFF)

  962. 			: "%eax", "%ebx", "%ecx", "%edx", "%esi", "%edi"

  963. 		);

  964. 		for(i=dstWidth-1; (i*xInc)>>16 >=srcWidth-1; i--) dst[i] = src[srcWidth-1]*128;

  965. 	}

  966. 	else

  967. 	{

  968. #endif

  969. 	//NO MMX just normal asm ...

  970. 	asm volatile(

  971. 		"xorl %%eax, %%eax		\n\t" // i

  972. 		"xorl %%ebx, %%ebx		\n\t" // xx

  973. 		"xorl %%ecx, %%ecx		\n\t" // 2*xalpha

  974. 		"1:				\n\t"

  975. 		"movzbl  (%0, %%ebx), %%edi	\n\t" //src[xx]

  976. 		"movzbl 1(%0, %%ebx), %%esi	\n\t" //src[xx+1]

  977. 		"subl %%edi, %%esi		\n\t" //src[xx+1] - src[xx]

  978. 		"imull %%ecx, %%esi		\n\t" //(src[xx+1] - src[xx])*2*xalpha

  979. 		"shll $16, %%edi		\n\t"

  980. 		"addl %%edi, %%esi		\n\t" //src[xx+1]*2*xalpha + src[xx]*(1-2*xalpha)

  981. 		"movl %1, %%edi			\n\t"

  982. 		"shrl $9, %%esi			\n\t"

  983. 		"movw %%si, (%%edi, %%eax, 2)	\n\t"

  984. 		"addw %4, %%cx			\n\t" //2*xalpha += xInc&0xFF

  985. 		"adcl %3, %%ebx			\n\t" //xx+= xInc>>8 + carry

  986. 

  987. 		"movzbl (%0, %%ebx), %%edi	\n\t" //src[xx]

  988. 		"movzbl 1(%0, %%ebx), %%esi	\n\t" //src[xx+1]

  989. 		"subl %%edi, %%esi		\n\t" //src[xx+1] - src[xx]

  990. 		"imull %%ecx, %%esi		\n\t" //(src[xx+1] - src[xx])*2*xalpha

  991. 		"shll $16, %%edi		\n\t"

  992. 		"addl %%edi, %%esi		\n\t" //src[xx+1]*2*xalpha + src[xx]*(1-2*xalpha)

  993. 		"movl %1, %%edi			\n\t"

  994. 		"shrl $9, %%esi			\n\t"

  995. 		"movw %%si, 2(%%edi, %%eax, 2)	\n\t"

  996. 		"addw %4, %%cx			\n\t" //2*xalpha += xInc&0xFF

  997. 		"adcl %3, %%ebx			\n\t" //xx+= xInc>>8 + carry

  998. 

  999. 

  1000. 		"addl $2, %%eax			\n\t"

  1001. 		"cmpl %2, %%eax			\n\t"

  1002. 		" jb 1b				\n\t"

  1003. 

  1004. 

  1005. 		:: "r" (src), "m" (dst), "m" (dstWidth), "m" (xInc>>16), "m" (xInc&0xFFFF)

  1006. 		: "%eax", "%ebx", "%ecx", "%edi", "%esi"

  1007. 		);

  1008. #ifdef HAVE_MMX2

  1009. 	} //if MMX2 cant be used

  1010. #endif

  1011. #else

  1012.       for(i=0;i<dstWidth;i++){

  1013. 	register unsigned int xx=xpos>>16;

  1014.         register unsigned int xalpha=(xpos&0xFFFF)>>9;

  1015. 	dst[i]=(src[xx]*(xalpha^127)+src[xx+1]*xalpha);

  1016. 	xpos+=xInc;

  1017.       }

  1018. #endif

  1019. }

  1020. 

  1021. inline static void hcscale(uint16_t *dst, int dstWidth,

  1022. 				uint8_t *src1, uint8_t *src2, int srcWidth, int xInc)

  1023. {

  1024. 	int xpos=0;

  1025. 	int i;

  1026. #ifdef ARCH_X86

  1027. #ifdef HAVE_MMX2

  1028. 	if(canMMX2BeUsed)

  1029. 	{

  1030. 		asm volatile(

  1031. 		"pxor %%mm7, %%mm7		\n\t"

  1032. 		"pxor %%mm2, %%mm2		\n\t" // 2*xalpha

  1033. 		"movd %5, %%mm6			\n\t" // xInc&0xFFFF

  1034. 		"punpcklwd %%mm6, %%mm6		\n\t"

  1035. 		"punpcklwd %%mm6, %%mm6		\n\t"

  1036. 		"movq %%mm6, %%mm2		\n\t"

  1037. 		"psllq $16, %%mm2		\n\t"

  1038. 		"paddw %%mm6, %%mm2		\n\t"

  1039. 		"psllq $16, %%mm2		\n\t"

  1040. 		"paddw %%mm6, %%mm2		\n\t"

  1041. 		"psllq $16, %%mm2		\n\t" //0,t,2t,3t		t=xInc&0xFFFF

  1042. 		"movq %%mm2, temp0		\n\t"

  1043. 		"movd %4, %%mm6			\n\t" //(xInc*4)&0xFFFF

  1044. 		"punpcklwd %%mm6, %%mm6		\n\t"

  1045. 		"punpcklwd %%mm6, %%mm6		\n\t"

  1046. 		"xorl %%eax, %%eax		\n\t" // i

  1047. 		"movl %0, %%esi			\n\t" // src

  1048. 		"movl %1, %%edi			\n\t" // buf1

  1049. 		"movl %3, %%edx			\n\t" // (xInc*4)>>16

  1050. 		"xorl %%ecx, %%ecx		\n\t"

  1051. 		"xorl %%ebx, %%ebx		\n\t"

  1052. 		"movw %4, %%bx			\n\t" // (xInc*4)&0xFFFF

  1053. 

  1054. #define FUNNYUVCODE \

  1055. 			PREFETCH" 1024(%%esi)		\n\t"\

  1056. 			PREFETCH" 1056(%%esi)		\n\t"\

  1057. 			PREFETCH" 1088(%%esi)		\n\t"\

  1058. 			"call funnyUVCode		\n\t"\

  1059. 			"movq temp0, %%mm2		\n\t"\

  1060. 			"xorl %%ecx, %%ecx		\n\t"

  1061. 

  1062. FUNNYUVCODE

  1063. FUNNYUVCODE

  1064. FUNNYUVCODE

  1065. FUNNYUVCODE

  1066. 

  1067. FUNNYUVCODE

  1068. FUNNYUVCODE

  1069. FUNNYUVCODE

  1070. FUNNYUVCODE

  1071. 

  1072. 

  1073. 		"xorl %%eax, %%eax		\n\t" // i

  1074. 		"movl %6, %%esi			\n\t" // src

  1075. 		"movl %1, %%edi			\n\t" // buf1

  1076. 		"addl $4096, %%edi		\n\t"

  1077. 

  1078. FUNNYUVCODE

  1079. FUNNYUVCODE

  1080. FUNNYUVCODE

  1081. FUNNYUVCODE

  1082. 

  1083. FUNNYUVCODE

  1084. FUNNYUVCODE

  1085. FUNNYUVCODE

  1086. FUNNYUVCODE

  1087. 

  1088. 		:: "m" (src1), "m" (dst), "m" (dstWidth), "m" ((xInc*4)>>16),

  1089. 		  "m" ((xInc*4)&0xFFFF), "m" (xInc&0xFFFF), "m" (src2)

  1090. 		: "%eax", "%ebx", "%ecx", "%edx", "%esi", "%edi"

  1091. 	);

  1092. 		for(i=dstWidth-1; (i*xInc)>>16 >=srcWidth/2-1; i--)

  1093. 		{

  1094. 			dst[i] = src1[srcWidth/2-1]*128;

  1095. 			dst[i+2048] = src2[srcWidth/2-1]*128;

  1096. 		}

  1097. 	}

  1098. 	else

  1099. 	{

  1100. #endif

  1101. 	asm volatile(

  1102. 		"xorl %%eax, %%eax		\n\t" // i

  1103. 		"xorl %%ebx, %%ebx		\n\t" // xx

  1104. 		"xorl %%ecx, %%ecx		\n\t" // 2*xalpha

  1105. 		"1:				\n\t"

  1106. 		"movl %0, %%esi			\n\t"

  1107. 		"movzbl  (%%esi, %%ebx), %%edi	\n\t" //src[xx]

  1108. 		"movzbl 1(%%esi, %%ebx), %%esi	\n\t" //src[xx+1]

  1109. 		"subl %%edi, %%esi		\n\t" //src[xx+1] - src[xx]

  1110. 		"imull %%ecx, %%esi		\n\t" //(src[xx+1] - src[xx])*2*xalpha

  1111. 		"shll $16, %%edi		\n\t"

  1112. 		"addl %%edi, %%esi		\n\t" //src[xx+1]*2*xalpha + src[xx]*(1-2*xalpha)

  1113. 		"movl %1, %%edi			\n\t"

  1114. 		"shrl $9, %%esi			\n\t"

  1115. 		"movw %%si, (%%edi, %%eax, 2)	\n\t"

  1116. 

  1117. 		"movzbl  (%5, %%ebx), %%edi	\n\t" //src[xx]

  1118. 		"movzbl 1(%5, %%ebx), %%esi	\n\t" //src[xx+1]

  1119. 		"subl %%edi, %%esi		\n\t" //src[xx+1] - src[xx]

  1120. 		"imull %%ecx, %%esi		\n\t" //(src[xx+1] - src[xx])*2*xalpha

  1121. 		"shll $16, %%edi		\n\t"

  1122. 		"addl %%edi, %%esi		\n\t" //src[xx+1]*2*xalpha + src[xx]*(1-2*xalpha)

  1123. 		"movl %1, %%edi			\n\t"

  1124. 		"shrl $9, %%esi			\n\t"

  1125. 		"movw %%si, 4096(%%edi, %%eax, 2)\n\t"

  1126. 

  1127. 		"addw %4, %%cx			\n\t" //2*xalpha += xInc&0xFF

  1128. 		"adcl %3, %%ebx			\n\t" //xx+= xInc>>8 + carry

  1129. 		"addl $1, %%eax			\n\t"

  1130. 		"cmpl %2, %%eax			\n\t"

  1131. 		" jb 1b				\n\t"

  1132. 

  1133. 		:: "m" (src1), "m" (dst), "m" (dstWidth), "m" (xInc>>16), "m" (xInc&0xFFFF),

  1134. 		"r" (src2)

  1135. 		: "%eax", "%ebx", "%ecx", "%edi", "%esi"

  1136. 		);

  1137. #ifdef HAVE_MMX2

  1138. 	} //if MMX2 cant be used

  1139. #endif

  1140. #else

  1141.       for(i=0;i<dstWidth;i++){

  1142. 	  register unsigned int xx=xpos>>16;

  1143.           register unsigned int xalpha=(xpos&0xFFFF)>>9;

  1144. 	  dst[i]=(src1[xx]*(xalpha^127)+src1[xx+1]*xalpha);

  1145. 	  dst[i+2048]=(src2[xx]*(xalpha^127)+src2[xx+1]*xalpha);

  1146. 	  xpos+=xInc;

  1147.       }

  1148. #endif

  1149. }

  1150. 

  1151. 

  1152. // *** bilinear scaling and yuv->rgb or yuv->yuv conversion of yv12 slices:

  1153. // *** Note: it's called multiple times while decoding a frame, first time y==0

  1154. // *** Designed to upscale, but may work for downscale too.

  1155. // s_xinc = (src_width << 16) / dst_width

  1156. // s_yinc = (src_height << 16) / dst_height

  1157. void SwScale_YV12slice(unsigned char* srcptr[],int stride[], int y, int h,

  1158. 			     uint8_t* dstptr[], int dststride, int dstw, int dstbpp,

  1159. 			     unsigned int s_xinc,unsigned int s_yinc){

  1160. 

  1161. // scaling factors:

  1162. //static int s_yinc=(vo_dga_src_height<<16)/vo_dga_vp_height;

  1163. //static int s_xinc=(vo_dga_src_width<<8)/vo_dga_vp_width;

  1164. 

  1165. unsigned int s_xinc2;

  1166. 

  1167. static int s_srcypos; // points to the dst Pixels center in the source (0 is the center of pixel 0,0 in src)

  1168. static int s_ypos;

  1169. 

  1170. // last horzontally interpolated lines, used to avoid unnecessary calculations

  1171. static int s_last_ypos;

  1172. static int s_last_y1pos;

  1173. 

  1174. static int static_dstw;

  1175. 

  1176. #ifdef HAVE_MMX2

  1177. // used to detect a horizontal size change

  1178. static int old_dstw= -1;

  1179. static int old_s_xinc= -1;

  1180. #endif

  1181. 

  1182. int srcWidth= (dstw*s_xinc + 0x8000)>>16;

  1183. int dstUVw= fullUVIpol ? dstw : dstw/2;

  1184. 

  1185. 

  1186. #ifdef HAVE_MMX2

  1187. canMMX2BeUsed= (s_xinc <= 0x10000 && (dstw&31)==0 && (srcWidth&15)==0) ? 1 : 0;

  1188. #endif

  1189. 

  1190. // match pixel 0 of the src to pixel 0 of dst and match pixel n-2 of src to pixel n-2 of dst

  1191. // n-2 is the last chrominance sample available

  1192. // FIXME this is not perfect, but noone shuld notice the difference, the more correct variant

  1193. // would be like the vertical one, but that would require some special code for the

  1194. // first and last pixel

  1195. if(canMMX2BeUsed) 	s_xinc+= 20;

  1196. else			s_xinc = ((srcWidth-2)<<16)/(dstw-2) - 20;

  1197. 

  1198. if(fullUVIpol && !dstbpp==12) 	s_xinc2= s_xinc>>1;

  1199. else				s_xinc2= s_xinc;

  1200.   // force calculation of the horizontal interpolation of the first line

  1201. 

  1202.   if(y==0){

  1203. 	s_last_ypos=-99;

  1204. 	s_last_y1pos=-99;

  1205. 	s_srcypos= s_yinc/2 - 0x8000;

  1206. 	s_ypos=0;

  1207. #ifdef HAVE_MMX2

  1208. // cant downscale !!!

  1209. 	if((old_s_xinc != s_xinc || old_dstw!=dstw) && canMMX2BeUsed)

  1210. 	{

  1211. 		uint8_t *fragment;

  1212. 		int imm8OfPShufW1;

  1213. 		int imm8OfPShufW2;

  1214. 		int fragmentLength;

  1215. 

  1216. 		int xpos, xx, xalpha, i;

  1217. 

  1218. 		old_s_xinc= s_xinc;

  1219. 		old_dstw= dstw;

  1220. 

  1221. 		static_dstw= dstw;

  1222. 

  1223. 		// create an optimized horizontal scaling routine

  1224. 

  1225. 		//code fragment

  1226. 

  1227. 		asm volatile(

  1228. 			"jmp 9f				\n\t"

  1229. 		// Begin

  1230. 			"0:				\n\t"

  1231. 			"movq (%%esi), %%mm0		\n\t" //FIXME Alignment

  1232. 			"movq %%mm0, %%mm1		\n\t"

  1233. 			"psrlq $8, %%mm0		\n\t"

  1234. 			"punpcklbw %%mm7, %%mm1	\n\t"

  1235. 			"movq %%mm2, %%mm3		\n\t"

  1236. 			"punpcklbw %%mm7, %%mm0	\n\t"

  1237. 			"addw %%bx, %%cx		\n\t" //2*xalpha += (4*s_xinc)&0xFFFF

  1238. 			"pshufw $0xFF, %%mm1, %%mm1	\n\t"

  1239. 			"1:				\n\t"

  1240. 			"adcl %%edx, %%esi		\n\t" //xx+= (4*s_xinc)>>16 + carry

  1241. 			"pshufw $0xFF, %%mm0, %%mm0	\n\t"

  1242. 			"2:				\n\t"

  1243. 			"psrlw $9, %%mm3		\n\t"

  1244. 			"psubw %%mm1, %%mm0		\n\t"

  1245. 			"pmullw %%mm3, %%mm0		\n\t"

  1246. 			"paddw %%mm6, %%mm2		\n\t" // 2*alpha += xpos&0xFFFF

  1247. 			"psllw $7, %%mm1		\n\t"

  1248. 			"paddw %%mm1, %%mm0		\n\t"

  1249. 

  1250. 			"movq %%mm0, (%%edi, %%eax)	\n\t"

  1251. 

  1252. 			"addl $8, %%eax			\n\t"

  1253. 		// End

  1254. 			"9:				\n\t"

  1255. //		"int $3\n\t"

  1256. 			"leal 0b, %0			\n\t"

  1257. 			"leal 1b, %1			\n\t"

  1258. 			"leal 2b, %2			\n\t"

  1259. 			"decl %1			\n\t"

  1260. 			"decl %2			\n\t"

  1261. 			"subl %0, %1			\n\t"

  1262. 			"subl %0, %2			\n\t"

  1263. 			"leal 9b, %3			\n\t"

  1264. 			"subl %0, %3			\n\t"

  1265. 			:"=r" (fragment), "=r" (imm8OfPShufW1), "=r" (imm8OfPShufW2),

  1266. 			 "=r" (fragmentLength)

  1267. 		);

  1268. 

  1269. 		xpos= 0; //s_xinc/2 - 0x8000; // difference between pixel centers

  1270. 

  1271. 		/* choose xinc so that all 8 parts fit exactly

  1272. 		   Note: we cannot use just 1 part because it would not fit in the code cache */

  1273. //		s_xinc2_diff= -((((s_xinc2*(dstw/8))&0xFFFF))/(dstw/8))-10;

  1274. //		s_xinc_diff= -((((s_xinc*(dstw/8))&0xFFFF))/(dstw/8));

  1275. #ifdef ALT_ERROR

  1276. //		s_xinc2_diff+= ((0x10000/(dstw/8)));

  1277. #endif

  1278. //		s_xinc_diff= s_xinc2_diff*2;

  1279. 

  1280. //		s_xinc2+= s_xinc2_diff;

  1281. //		s_xinc+= s_xinc_diff;

  1282. 

  1283. //		old_s_xinc= s_xinc;

  1284. 

  1285. 		for(i=0; i<dstw/8; i++)

  1286. 		{

  1287. 			int xx=xpos>>16;

  1288. 

  1289. 			if((i&3) == 0)

  1290. 			{

  1291. 				int a=0;

  1292. 				int b=((xpos+s_xinc)>>16) - xx;

  1293. 				int c=((xpos+s_xinc*2)>>16) - xx;

  1294. 				int d=((xpos+s_xinc*3)>>16) - xx;

  1295. 

  1296. 				memcpy(funnyYCode + fragmentLength*i/4, fragment, fragmentLength);

  1297. 

  1298. 				funnyYCode[fragmentLength*i/4 + imm8OfPShufW1]=

  1299. 				funnyYCode[fragmentLength*i/4 + imm8OfPShufW2]=

  1300. 					a | (b<<2) | (c<<4) | (d<<6);

  1301. 

  1302. 				// if we dont need to read 8 bytes than dont :), reduces the chance of

  1303. 				// crossing a cache line

  1304. 				if(d<3) funnyYCode[fragmentLength*i/4 + 1]= 0x6E;

  1305. 

  1306. 				funnyYCode[fragmentLength*(i+4)/4]= RET;

  1307. 			}

  1308. 			xpos+=s_xinc;

  1309. 		}

  1310. 

  1311. 		xpos= 0; //s_xinc2/2 - 0x10000; // difference between centers of chrom samples

  1312. 		for(i=0; i<dstUVw/8; i++)

  1313. 		{

  1314. 			int xx=xpos>>16;

  1315. 

  1316. 			if((i&3) == 0)

  1317. 			{

  1318. 				int a=0;

  1319. 				int b=((xpos+s_xinc2)>>16) - xx;

  1320. 				int c=((xpos+s_xinc2*2)>>16) - xx;

  1321. 				int d=((xpos+s_xinc2*3)>>16) - xx;

  1322. 

  1323. 				memcpy(funnyUVCode + fragmentLength*i/4, fragment, fragmentLength);

  1324. 

  1325. 				funnyUVCode[fragmentLength*i/4 + imm8OfPShufW1]=

  1326. 				funnyUVCode[fragmentLength*i/4 + imm8OfPShufW2]=

  1327. 					a | (b<<2) | (c<<4) | (d<<6);

  1328. 

  1329. 				// if we dont need to read 8 bytes than dont :), reduces the chance of

  1330. 				// crossing a cache line

  1331. 				if(d<3) funnyUVCode[fragmentLength*i/4 + 1]= 0x6E;

  1332. 

  1333. 				funnyUVCode[fragmentLength*(i+4)/4]= RET;

  1334. 			}

  1335. 			xpos+=s_xinc2;

  1336. 		}

  1337. //		funnyCode[0]= RET;

  1338. 	}

  1339. 

  1340. #endif // HAVE_MMX2

  1341.   } // reset counters

  1342. 

  1343.   while(1){

  1344.     unsigned char *dest =dstptr[0]+dststride*s_ypos;

  1345.     unsigned char *uDest=dstptr[1]+(dststride>>1)*(s_ypos>>1);

  1346.     unsigned char *vDest=dstptr[2]+(dststride>>1)*(s_ypos>>1);

  1347. 

  1348.     int y0=(s_srcypos + 0xFFFF)>>16;  // first luminance source line number below the dst line

  1349. 	// points to the dst Pixels center in the source (0 is the center of pixel 0,0 in src)

  1350.     int srcuvpos= dstbpp==12 ?	s_srcypos + s_yinc/2 - 0x8000 :

  1351.     				s_srcypos - 0x8000;

  1352.     int y1=(srcuvpos + 0x1FFFF)>>17; // first chrominance source line number below the dst line

  1353.     int yalpha=((s_srcypos-1)&0xFFFF)>>4;

  1354.     int uvalpha=((srcuvpos-1)&0x1FFFF)>>5;

  1355.     uint16_t *buf0=pix_buf_y[y0&1];		// top line of the interpolated slice

  1356.     uint16_t *buf1=pix_buf_y[((y0+1)&1)];	// bottom line of the interpolated slice

  1357.     uint16_t *uvbuf0=pix_buf_uv[y1&1];		// top line of the interpolated slice

  1358.     uint16_t *uvbuf1=pix_buf_uv[(y1+1)&1];	// bottom line of the interpolated slice

  1359.     int i;

  1360. 

  1361.     if(y0>=y+h) break; // FIXME wrong, skips last lines, but they are dupliactes anyway

  1362. 

  1363.     if((y0&1) && dstbpp==12) uvalpha=-1; // there is no alpha if there is no line

  1364. 

  1365.     s_ypos++; s_srcypos+=s_yinc;

  1366. 

  1367.     //only interpolate the src line horizontally if we didnt do it allready

  1368. 	if(s_last_ypos!=y0)

  1369. 	{

  1370. 		unsigned char *src;

  1371. 		// skip if first line has been horiz scaled alleady

  1372. 		if(s_last_ypos != y0-1)

  1373. 		{

  1374. 			// check if first line is before any available src lines

  1375. 			if(y0-1 < y) 	src=srcptr[0]+(0     )*stride[0];

  1376. 			else		src=srcptr[0]+(y0-y-1)*stride[0];

  1377. 

  1378. 			hyscale(buf0, dstw, src, srcWidth, s_xinc);

  1379. 		}

  1380. 		// check if second line is after any available src lines

  1381. 		if(y0-y >= h)	src=srcptr[0]+(h-1)*stride[0];

  1382. 		else		src=srcptr[0]+(y0-y)*stride[0];

  1383. 

  1384. 		// the min() is required to avoid reuseing lines which where not available

  1385. 		s_last_ypos= MIN(y0, y+h-1);

  1386. 		hyscale(buf1, dstw, src, srcWidth, s_xinc);

  1387. 	}

  1388. //	printf("%d %d %d %d\n", y, y1, s_last_y1pos, h);

  1389.       // *** horizontal scale U and V lines to temp buffer

  1390. 	if(s_last_y1pos!=y1)

  1391. 	{

  1392. 		uint8_t *src1, *src2;

  1393. 		// skip if first line has been horiz scaled alleady

  1394. 		if(s_last_y1pos != y1-1)

  1395. 		{

  1396. 			// check if first line is before any available src lines

  1397. 			if(y1-y/2-1 < 0)

  1398. 			{

  1399. 				src1= srcptr[1]+(0)*stride[1];

  1400. 				src2= srcptr[2]+(0)*stride[2];

  1401. 			}else{

  1402. 				src1= srcptr[1]+(y1-y/2-1)*stride[1];

  1403. 				src2= srcptr[2]+(y1-y/2-1)*stride[2];

  1404. 			}

  1405. 			hcscale(uvbuf0, dstUVw, src1, src2, srcWidth, s_xinc2);

  1406. 		}

  1407. 

  1408. 		// check if second line is after any available src lines

  1409. 		if(y1 - y/2 >= h/2)

  1410. 		{

  1411. 			src1= srcptr[1]+(h/2-1)*stride[1];

  1412. 			src2= srcptr[2]+(h/2-1)*stride[2];

  1413. 		}else{

  1414. 			src1= srcptr[1]+(y1-y/2)*stride[1];

  1415. 			src2= srcptr[2]+(y1-y/2)*stride[2];

  1416. 		}

  1417. 		hcscale(uvbuf1, dstUVw, src1, src2, srcWidth, s_xinc2);

  1418. 

  1419. 		// the min() is required to avoid reuseing lines which where not available

  1420. 		s_last_y1pos= MIN(y1, y/2+h/2-1);

  1421. 	}

  1422. 

  1423. 	if(dstbpp==12) //YV12

  1424. 		yuv2yuv(buf0, buf1, uvbuf0, uvbuf1, dest, uDest, vDest, dstw, yalpha, uvalpha);

  1425. 	else if(ABS(s_yinc - 0x10000) < 10)

  1426. 		yuv2rgb1(buf0, buf1, uvbuf0, uvbuf1, dest, dstw, yalpha, uvalpha, dstbpp);

  1427. 	else

  1428. 		yuv2rgbX(buf0, buf1, uvbuf0, uvbuf1, dest, dstw, yalpha, uvalpha, dstbpp);

  1429. 

  1430. #ifdef HAVE_MMX

  1431.     	b16Dither= b16Dither1;

  1432. 	b16Dither1= b16Dither2;

  1433. 	b16Dither2= b16Dither;

  1434. 

  1435. 	g16Dither= g16Dither1;

  1436. 	g16Dither1= g16Dither2;

  1437. 	g16Dither2= g16Dither;

  1438. #endif

  1439.   }

  1440. 

  1441. #ifdef HAVE_MMX

  1442. 	__asm __volatile(SFENCE:::"memory");

  1443. 	__asm __volatile(EMMS);

  1444. #endif

  1445. }

  1446. 

  1447. 

  1448. void SwScale_Init(){

  1449.     // generating tables:

  1450.     int i;

  1451.     for(i=0;i<256;i++){

  1452.         clip_table[i]=0;

  1453.         clip_table[i+256]=i;

  1454.         clip_table[i+512]=255;

  1455. 	yuvtab_2568[i]=(0x2568*(i-16))+(256<<13);

  1456. 	yuvtab_3343[i]=0x3343*(i-128);

  1457. 	yuvtab_0c92[i]=-0x0c92*(i-128);

  1458. 	yuvtab_1a1e[i]=-0x1a1e*(i-128);

  1459. 	yuvtab_40cf[i]=0x40cf*(i-128);

  1460.     }

  1461. 

  1462. }