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FFmpeg/postproc/swscale_template.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. bicubic scaler

  37. */

  38. 

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

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

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

  42. 

  43. #ifdef HAVE_MMX2

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

  45. #elif defined (HAVE_3DNOW)

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

  47. #endif

  48. 

  49. #ifdef HAVE_MMX2

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

  51. #else

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

  53. #endif

  54. 

  55. 

  56. #ifdef HAVE_MMX

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

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

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

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

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

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

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

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

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

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

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

  68. 

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

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

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

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

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

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

  75. 

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

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

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

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

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

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

  82. 

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

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

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

  86. #endif

  87. 

  88. // temporary storage for 4 yuv lines:

  89. // 16bit for now (mmx likes it more compact)

  90. #ifdef HAVE_MMX

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

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

  93. #else

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

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

  96. #endif

  97. 

  98. // clipping helper table for C implementations:

  99. static unsigned char clip_table[768];

  100. 

  101. // yuv->rgb conversion tables:

  102. static    int yuvtab_2568[256];

  103. static    int yuvtab_3343[256];

  104. static    int yuvtab_0c92[256];

  105. static    int yuvtab_1a1e[256];

  106. static    int yuvtab_40cf[256];

  107. 

  108. 

  109. static uint8_t funnyYCode[10000];

  110. static uint8_t funnyUVCode[10000];

  111. 

  112. static int canMMX2BeUsed=0;

  113. 

  114. #define FULL_YSCALEYUV2RGB \

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

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

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

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

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

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

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

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

  123. 		"1:				\n\t"\

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  142. \

  143. \

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

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

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

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

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

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

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

  151. \

  152. \

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

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

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

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

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

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

  159. \

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

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

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

  163. \

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

  165. 

  166. #define YSCALEYUV2RGB \

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

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

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

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

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

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

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

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

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

  176. 		"1:				\n\t"\

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  237. 

  238. #define YSCALEYUV2RGB1 \

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

  240. 		"1:				\n\t"\

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

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

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

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

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

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

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

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

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

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

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

  252. 		"movq (%0, %%eax, 2), %%mm1	\n\t" /*buf0[eax]*/\

  253. 		"movq 8(%0, %%eax, 2), %%mm7	\n\t" /*buf0[eax]*/\

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  284. 

  285. // do vertical chrominance interpolation

  286. #define YSCALEYUV2RGB1b \

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

  288. 		"1:				\n\t"\

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

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

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

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

  293. 		"paddw %%mm2, %%mm3		\n\t"\

  294. 		"paddw %%mm5, %%mm4		\n\t"\

  295. 		"psraw $5, %%mm3		\n\t" /* uvbuf0[eax] - uvbuf1[eax] >>4*/\

  296. 		"psraw $5, %%mm4		\n\t" /* uvbuf0[eax+2048] - uvbuf1[eax+2048] >>4*/\

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

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

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

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

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

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

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

  304. 		"movq (%0, %%eax, 2), %%mm1	\n\t" /*buf0[eax]*/\

  305. 		"movq 8(%0, %%eax, 2), %%mm7	\n\t" /*buf0[eax]*/\

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  336. 

  337. #define WRITEBGR32 \

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

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

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

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

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

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

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

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

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

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

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

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

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

  351. \

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

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

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

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

  356. \

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

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

  359. 			" jb 1b				\n\t"

  360. 

  361. #define WRITEBGR16 \

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

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

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

  365. \

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

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

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

  369. \

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

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

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

  373. \

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

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

  376. \

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

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

  379. \

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

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

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

  383. \

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

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

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

  387. \

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

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

  390. \

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

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

  393. \

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

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

  396. \

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

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

  399. 			" jb 1b				\n\t"

  400. 

  401. #define WRITEBGR15 \

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

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

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

  405. \

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

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

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

  409. \

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

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

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

  413. \

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

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

  416. \

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

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

  419. \

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

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

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

  423. \

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

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

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

  427. \

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

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

  430. \

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

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

  433. \

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

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

  436. \

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

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

  439. 			" jb 1b				\n\t"

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

  441. #define WRITEBGR24 \

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

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

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

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

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

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

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

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

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

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

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

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

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

  455. \

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

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

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

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

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

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

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

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

  464. \

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

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

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

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

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

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

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

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

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

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

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

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

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

  478. \

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

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

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

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

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

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

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

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

  487. \

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

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

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

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

  492. \

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

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

  495. 			" jb 1b				\n\t"

  496. 

  497. 

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

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

  500. {

  501. 	int yalpha1=yalpha^4095;

  502. 	int uvalpha1=uvalpha^4095;

  503. 	int i;

  504. 

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

  506. 

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

  508. 	{

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

  510. 		dest++;

  511. 	}

  512. 

  513. 	if(uvalpha != -1)

  514. 	{

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

  516. 		{

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

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

  519. 			uDest++;

  520. 			vDest++;

  521. 		}

  522. 	}

  523. }

  524. 

  525. /**

  526.  * vertical scale YV12 to RGB

  527.  */

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

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

  530. {

  531. 	int yalpha1=yalpha^4095;

  532. 	int uvalpha1=uvalpha^4095;

  533. 	int i;

  534. 

  535. 	if(fullUVIpol)

  536. 	{

  537. 

  538. #ifdef HAVE_MMX

  539. 		if(dstbpp == 32)

  540. 		{

  541. 			asm volatile(

  542. 

  543. 

  544. FULL_YSCALEYUV2RGB

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

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

  547. 

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

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

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

  551. 

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

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

  554. 

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

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

  557. 			" jb 1b				\n\t"

  558. 

  559. 

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

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

  562. 			: "%eax"

  563. 			);

  564. 		}

  565. 		else if(dstbpp==24)

  566. 		{

  567. 			asm volatile(

  568. 

  569. FULL_YSCALEYUV2RGB

  570. 

  571. 								// lsb ... msb

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

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

  574. 

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

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

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

  578. 

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

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

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

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

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

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

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

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

  587. 

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

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

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

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

  592. 

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

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

  595. 

  596. #ifdef HAVE_MMX2

  597. 			//FIXME Alignment

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

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

  600. #else

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

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

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

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

  605. #endif

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

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

  608. 			" jb 1b				\n\t"

  609. 

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

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

  612. 			: "%eax", "%ebx"

  613. 			);

  614. 		}

  615. 		else if(dstbpp==15)

  616. 		{

  617. 			asm volatile(

  618. 

  619. FULL_YSCALEYUV2RGB

  620. #ifdef DITHER1XBPP

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

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

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

  624. #endif

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

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

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

  628. 

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

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

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

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

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

  634. 

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

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

  637. 

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

  639. 

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

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

  642. 			" jb 1b				\n\t"

  643. 

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

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

  646. 			: "%eax"

  647. 			);

  648. 		}

  649. 		else if(dstbpp==16)

  650. 		{

  651. 			asm volatile(

  652. 

  653. FULL_YSCALEYUV2RGB

  654. #ifdef DITHER1XBPP

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

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

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

  658. #endif

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

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

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

  662. 

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

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

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

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

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

  668. 

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

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

  671. 

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

  673. 

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

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

  676. 			" jb 1b				\n\t"

  677. 

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

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

  680. 			: "%eax"

  681. 			);

  682. 		}

  683. #else

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

  685. 

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

  687. 		{

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

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

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

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

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

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

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

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

  696. 				dest+=dstbpp>>3;

  697. 			}

  698. 		}

  699. 		else if(dstbpp==16)

  700. 		{

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

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

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

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

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

  706. 

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

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

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

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

  711. 				dest+=2;

  712. 			}

  713. 		}

  714. 		else if(dstbpp==15)

  715. 		{

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

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

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

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

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

  721. 

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

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

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

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

  726. 				dest+=2;

  727. 			}

  728. 		}

  729. #endif

  730. 	}//FULL_UV_IPOL

  731. 	else

  732. 	{

  733. #ifdef HAVE_MMX

  734. 		if(dstbpp == 32)

  735. 		{

  736. 			asm volatile(

  737. 				YSCALEYUV2RGB

  738. 				WRITEBGR32

  739. 

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

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

  742. 			: "%eax"

  743. 			);

  744. 		}

  745. 		else if(dstbpp==24)

  746. 		{

  747. 			asm volatile(

  748. 				YSCALEYUV2RGB

  749. 				WRITEBGR24

  750. 

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

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

  753. 			: "%eax", "%ebx"

  754. 			);

  755. 		}

  756. 		else if(dstbpp==15)

  757. 		{

  758. 			asm volatile(

  759. 				YSCALEYUV2RGB

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

  761. #ifdef DITHER1XBPP

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

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

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

  765. #endif

  766. 

  767. 				WRITEBGR15

  768. 

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

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

  771. 			: "%eax"

  772. 			);

  773. 		}

  774. 		else if(dstbpp==16)

  775. 		{

  776. 			asm volatile(

  777. 				YSCALEYUV2RGB

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

  779. #ifdef DITHER1XBPP

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

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

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

  783. #endif

  784. 

  785. 				WRITEBGR16

  786. 

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

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

  789. 			: "%eax"

  790. 			);

  791. 		}

  792. #else

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

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

  795. 

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

  797. 		{

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

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

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

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

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

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

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

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

  806. 				dest+=dstbpp>>3;

  807. 			}

  808. 		}

  809. 		else if(dstbpp==16)

  810. 		{

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

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

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

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

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

  816. 

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

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

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

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

  821. 				dest+=2;

  822. 			}

  823. 		}

  824. 		else if(dstbpp==15)

  825. 		{

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

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

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

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

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

  831. 

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

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

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

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

  836. 				dest+=2;

  837. 			}

  838. 		}

  839. #endif

  840. 	} //!FULL_UV_IPOL

  841. }

  842. 

  843. /**

  844.  * YV12 to RGB without scaling or interpolating

  845.  */

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

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

  848. {

  849. 	int yalpha1=yalpha^4095;

  850. 	int uvalpha1=uvalpha^4095;

  851. 	int i;

  852. 	if(fullUVIpol || allwaysIpol)

  853. 	{

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

  855. 		return;

  856. 	}

  857. #ifdef HAVE_MMX

  858. 	if( yalpha > 2048 ) buf0 = buf1;

  859. 	if( uvalpha < 2048 ) // note this is not correct (shifts chrominance by 0.5 pixels) but its a bit faster

  860. 	{

  861. 		if(dstbpp == 32)

  862. 		{

  863. 			asm volatile(

  864. 				YSCALEYUV2RGB1

  865. 				WRITEBGR32

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

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

  868. 			: "%eax"

  869. 			);

  870. 		}

  871. 		else if(dstbpp==24)

  872. 		{

  873. 			asm volatile(

  874. 				YSCALEYUV2RGB1

  875. 				WRITEBGR24

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

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

  878. 			: "%eax", "%ebx"

  879. 			);

  880. 		}

  881. 		else if(dstbpp==15)

  882. 		{

  883. 			asm volatile(

  884. 				YSCALEYUV2RGB1

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

  886. #ifdef DITHER1XBPP

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

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

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

  890. #endif

  891. 				WRITEBGR15

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

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

  894. 			: "%eax"

  895. 			);

  896. 		}

  897. 		else if(dstbpp==16)

  898. 		{

  899. 			asm volatile(

  900. 				YSCALEYUV2RGB1

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

  902. #ifdef DITHER1XBPP

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

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

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

  906. #endif

  907. 

  908. 				WRITEBGR16

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

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

  911. 			: "%eax"

  912. 			);

  913. 		}

  914. 	}

  915. 	else

  916. 	{

  917. 		if(dstbpp == 32)

  918. 		{

  919. 			asm volatile(

  920. 				YSCALEYUV2RGB1b

  921. 				WRITEBGR32

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

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

  924. 			: "%eax"

  925. 			);

  926. 		}

  927. 		else if(dstbpp==24)

  928. 		{

  929. 			asm volatile(

  930. 				YSCALEYUV2RGB1b

  931. 				WRITEBGR24

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

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

  934. 			: "%eax", "%ebx"

  935. 			);

  936. 		}

  937. 		else if(dstbpp==15)

  938. 		{

  939. 			asm volatile(

  940. 				YSCALEYUV2RGB1b

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

  942. #ifdef DITHER1XBPP

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

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

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

  946. #endif

  947. 				WRITEBGR15

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

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

  950. 			: "%eax"

  951. 			);

  952. 		}

  953. 		else if(dstbpp==16)

  954. 		{

  955. 			asm volatile(

  956. 				YSCALEYUV2RGB1b

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

  958. #ifdef DITHER1XBPP

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

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

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

  962. #endif

  963. 

  964. 				WRITEBGR16

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

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

  967. 			: "%eax"

  968. 			);

  969. 		}

  970. 	}

  971. #else

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

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

  974. 

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

  976. 	{

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

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

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

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

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

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

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

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

  985. 			dest+=dstbpp>>3;

  986. 		}

  987. 	}

  988. 	else if(dstbpp==16)

  989. 	{

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

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

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

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

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

  995. 

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

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

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

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

  1000. 			dest+=2;

  1001. 		}

  1002. 	}

  1003. 	else if(dstbpp==15)

  1004. 	{

  1005. 		for(i=0;i<dstw;i++){

  1006. 			// vertical linear interpolation && yuv2rgb in a single step:

  1007. 			int Y=yuvtab_2568[buf0[i]>>7];

  1008. 			int U=((uvbuf0[i/2]*uvalpha1+uvbuf1[i/2]*uvalpha)>>19);

  1009. 			int V=((uvbuf0[i/2+2048]*uvalpha1+uvbuf1[i/2+2048]*uvalpha)>>19);

  1010. 

  1011. 			((uint16_t*)dest)[0] =

  1012. 				(clip_table[(Y + yuvtab_40cf[U]) >>13]>>3) |

  1013. 				((clip_table[(Y + yuvtab_1a1e[V] + yuvtab_0c92[U]) >>13]<<2)&0x03E0) |

  1014. 				((clip_table[(Y + yuvtab_3343[V]) >>13]<<7)&0x7C00);

  1015. 			dest+=2;

  1016. 		}

  1017. 	}

  1018. #endif

  1019. }

  1020. 

  1021. 

  1022. static inline void hyscale(uint16_t *dst, int dstWidth, uint8_t *src, int srcWidth, int xInc)

  1023. {

  1024. 	int i;

  1025.       unsigned int xpos=0;

  1026.       // *** horizontal scale Y line to temp buffer

  1027. #ifdef ARCH_X86

  1028. #ifdef HAVE_MMX2

  1029. 	if(canMMX2BeUsed)

  1030. 	{

  1031. 		asm volatile(

  1032. 			"pxor %%mm7, %%mm7		\n\t"

  1033. 			"pxor %%mm2, %%mm2		\n\t" // 2*xalpha

  1034. 			"movd %5, %%mm6			\n\t" // xInc&0xFFFF

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

  1036. 			"punpcklwd %%mm6, %%mm6		\n\t"

  1037. 			"movq %%mm6, %%mm2		\n\t"

  1038. 			"psllq $16, %%mm2		\n\t"

  1039. 			"paddw %%mm6, %%mm2		\n\t"

  1040. 			"psllq $16, %%mm2		\n\t"

  1041. 			"paddw %%mm6, %%mm2		\n\t"

  1042. 			"psllq $16, %%mm2		\n\t" //0,t,2t,3t		t=xInc&0xFF

  1043. 			"movq %%mm2, temp0		\n\t"

  1044. 			"movd %4, %%mm6			\n\t" //(xInc*4)&0xFFFF

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

  1046. 			"punpcklwd %%mm6, %%mm6		\n\t"

  1047. 			"xorl %%eax, %%eax		\n\t" // i

  1048. 			"movl %0, %%esi			\n\t" // src

  1049. 			"movl %1, %%edi			\n\t" // buf1

  1050. 			"movl %3, %%edx			\n\t" // (xInc*4)>>16

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

  1052. 			"xorl %%ebx, %%ebx		\n\t"

  1053. 			"movw %4, %%bx			\n\t" // (xInc*4)&0xFFFF

  1054. 

  1055. #define FUNNY_Y_CODE \

  1056. 			PREFETCH" 1024(%%esi)		\n\t"\

  1057. 			PREFETCH" 1056(%%esi)		\n\t"\

  1058. 			PREFETCH" 1088(%%esi)		\n\t"\

  1059. 			"call funnyYCode		\n\t"\

  1060. 			"movq temp0, %%mm2		\n\t"\

  1061. 			"xorl %%ecx, %%ecx		\n\t"

  1062. 

  1063. FUNNY_Y_CODE

  1064. FUNNY_Y_CODE

  1065. FUNNY_Y_CODE

  1066. FUNNY_Y_CODE

  1067. FUNNY_Y_CODE

  1068. FUNNY_Y_CODE

  1069. FUNNY_Y_CODE

  1070. FUNNY_Y_CODE

  1071. 

  1072. 			:: "m" (src), "m" (dst), "m" (dstWidth), "m" ((xInc*4)>>16),

  1073. 			"m" ((xInc*4)&0xFFFF), "m" (xInc&0xFFFF)

  1074. 			: "%eax", "%ebx", "%ecx", "%edx", "%esi", "%edi"

  1075. 		);

  1076. 		for(i=dstWidth-1; (i*xInc)>>16 >=srcWidth-1; i--) dst[i] = src[srcWidth-1]*128;

  1077. 	}

  1078. 	else

  1079. 	{

  1080. #endif

  1081. 	//NO MMX just normal asm ...

  1082. 	asm volatile(

  1083. 		"xorl %%eax, %%eax		\n\t" // i

  1084. 		"xorl %%ebx, %%ebx		\n\t" // xx

  1085. 		"xorl %%ecx, %%ecx		\n\t" // 2*xalpha

  1086. 		"1:				\n\t"

  1087. 		"movzbl  (%0, %%ebx), %%edi	\n\t" //src[xx]

  1088. 		"movzbl 1(%0, %%ebx), %%esi	\n\t" //src[xx+1]

  1089. 		"subl %%edi, %%esi		\n\t" //src[xx+1] - src[xx]

  1090. 		"imull %%ecx, %%esi		\n\t" //(src[xx+1] - src[xx])*2*xalpha

  1091. 		"shll $16, %%edi		\n\t"

  1092. 		"addl %%edi, %%esi		\n\t" //src[xx+1]*2*xalpha + src[xx]*(1-2*xalpha)

  1093. 		"movl %1, %%edi			\n\t"

  1094. 		"shrl $9, %%esi			\n\t"

  1095. 		"movw %%si, (%%edi, %%eax, 2)	\n\t"

  1096. 		"addw %4, %%cx			\n\t" //2*xalpha += xInc&0xFF

  1097. 		"adcl %3, %%ebx			\n\t" //xx+= xInc>>8 + carry

  1098. 

  1099. 		"movzbl (%0, %%ebx), %%edi	\n\t" //src[xx]

  1100. 		"movzbl 1(%0, %%ebx), %%esi	\n\t" //src[xx+1]

  1101. 		"subl %%edi, %%esi		\n\t" //src[xx+1] - src[xx]

  1102. 		"imull %%ecx, %%esi		\n\t" //(src[xx+1] - src[xx])*2*xalpha

  1103. 		"shll $16, %%edi		\n\t"

  1104. 		"addl %%edi, %%esi		\n\t" //src[xx+1]*2*xalpha + src[xx]*(1-2*xalpha)

  1105. 		"movl %1, %%edi			\n\t"

  1106. 		"shrl $9, %%esi			\n\t"

  1107. 		"movw %%si, 2(%%edi, %%eax, 2)	\n\t"

  1108. 		"addw %4, %%cx			\n\t" //2*xalpha += xInc&0xFF

  1109. 		"adcl %3, %%ebx			\n\t" //xx+= xInc>>8 + carry

  1110. 

  1111. 

  1112. 		"addl $2, %%eax			\n\t"

  1113. 		"cmpl %2, %%eax			\n\t"

  1114. 		" jb 1b				\n\t"

  1115. 

  1116. 

  1117. 		:: "r" (src), "m" (dst), "m" (dstWidth), "m" (xInc>>16), "m" (xInc&0xFFFF)

  1118. 		: "%eax", "%ebx", "%ecx", "%edi", "%esi"

  1119. 		);

  1120. #ifdef HAVE_MMX2

  1121. 	} //if MMX2 cant be used

  1122. #endif

  1123. #else

  1124.       for(i=0;i<dstWidth;i++){

  1125. 	register unsigned int xx=xpos>>16;

  1126.         register unsigned int xalpha=(xpos&0xFFFF)>>9;

  1127. 	dst[i]= (src[xx]<<7) + (src[xx+1] - src[xx])*xalpha;

  1128. 	xpos+=xInc;

  1129.       }

  1130. #endif

  1131. }

  1132. 

  1133. inline static void hcscale(uint16_t *dst, int dstWidth,

  1134. 				uint8_t *src1, uint8_t *src2, int srcWidth, int xInc)

  1135. {

  1136. 	int xpos=0;

  1137. 	int i;

  1138. #ifdef ARCH_X86

  1139. #ifdef HAVE_MMX2

  1140. 	if(canMMX2BeUsed)

  1141. 	{

  1142. 		asm volatile(

  1143. 		"pxor %%mm7, %%mm7		\n\t"

  1144. 		"pxor %%mm2, %%mm2		\n\t" // 2*xalpha

  1145. 		"movd %5, %%mm6			\n\t" // xInc&0xFFFF

  1146. 		"punpcklwd %%mm6, %%mm6		\n\t"

  1147. 		"punpcklwd %%mm6, %%mm6		\n\t"

  1148. 		"movq %%mm6, %%mm2		\n\t"

  1149. 		"psllq $16, %%mm2		\n\t"

  1150. 		"paddw %%mm6, %%mm2		\n\t"

  1151. 		"psllq $16, %%mm2		\n\t"

  1152. 		"paddw %%mm6, %%mm2		\n\t"

  1153. 		"psllq $16, %%mm2		\n\t" //0,t,2t,3t		t=xInc&0xFFFF

  1154. 		"movq %%mm2, temp0		\n\t"

  1155. 		"movd %4, %%mm6			\n\t" //(xInc*4)&0xFFFF

  1156. 		"punpcklwd %%mm6, %%mm6		\n\t"

  1157. 		"punpcklwd %%mm6, %%mm6		\n\t"

  1158. 		"xorl %%eax, %%eax		\n\t" // i

  1159. 		"movl %0, %%esi			\n\t" // src

  1160. 		"movl %1, %%edi			\n\t" // buf1

  1161. 		"movl %3, %%edx			\n\t" // (xInc*4)>>16

  1162. 		"xorl %%ecx, %%ecx		\n\t"

  1163. 		"xorl %%ebx, %%ebx		\n\t"

  1164. 		"movw %4, %%bx			\n\t" // (xInc*4)&0xFFFF

  1165. 

  1166. #define FUNNYUVCODE \

  1167. 			PREFETCH" 1024(%%esi)		\n\t"\

  1168. 			PREFETCH" 1056(%%esi)		\n\t"\

  1169. 			PREFETCH" 1088(%%esi)		\n\t"\

  1170. 			"call funnyUVCode		\n\t"\

  1171. 			"movq temp0, %%mm2		\n\t"\

  1172. 			"xorl %%ecx, %%ecx		\n\t"

  1173. 

  1174. FUNNYUVCODE

  1175. FUNNYUVCODE

  1176. FUNNYUVCODE

  1177. FUNNYUVCODE

  1178. 

  1179. FUNNYUVCODE

  1180. FUNNYUVCODE

  1181. FUNNYUVCODE

  1182. FUNNYUVCODE

  1183. 		"xorl %%eax, %%eax		\n\t" // i

  1184. 		"movl %6, %%esi			\n\t" // src

  1185. 		"movl %1, %%edi			\n\t" // buf1

  1186. 		"addl $4096, %%edi		\n\t"

  1187. 

  1188. FUNNYUVCODE

  1189. FUNNYUVCODE

  1190. FUNNYUVCODE

  1191. FUNNYUVCODE

  1192. 

  1193. FUNNYUVCODE

  1194. FUNNYUVCODE

  1195. FUNNYUVCODE

  1196. FUNNYUVCODE

  1197. 

  1198. 		:: "m" (src1), "m" (dst), "m" (dstWidth), "m" ((xInc*4)>>16),

  1199. 		  "m" ((xInc*4)&0xFFFF), "m" (xInc&0xFFFF), "m" (src2)

  1200. 		: "%eax", "%ebx", "%ecx", "%edx", "%esi", "%edi"

  1201. 	);

  1202. 		for(i=dstWidth-1; (i*xInc)>>16 >=srcWidth/2-1; i--)

  1203. 		{

  1204. 			dst[i] = src1[srcWidth/2-1]*128;

  1205. 			dst[i+2048] = src2[srcWidth/2-1]*128;

  1206. 		}

  1207. 	}

  1208. 	else

  1209. 	{

  1210. #endif

  1211. 	asm volatile(

  1212. 		"xorl %%eax, %%eax		\n\t" // i

  1213. 		"xorl %%ebx, %%ebx		\n\t" // xx

  1214. 		"xorl %%ecx, %%ecx		\n\t" // 2*xalpha

  1215. 		"1:				\n\t"

  1216. 		"movl %0, %%esi			\n\t"

  1217. 		"movzbl  (%%esi, %%ebx), %%edi	\n\t" //src[xx]

  1218. 		"movzbl 1(%%esi, %%ebx), %%esi	\n\t" //src[xx+1]

  1219. 		"subl %%edi, %%esi		\n\t" //src[xx+1] - src[xx]

  1220. 		"imull %%ecx, %%esi		\n\t" //(src[xx+1] - src[xx])*2*xalpha

  1221. 		"shll $16, %%edi		\n\t"

  1222. 		"addl %%edi, %%esi		\n\t" //src[xx+1]*2*xalpha + src[xx]*(1-2*xalpha)

  1223. 		"movl %1, %%edi			\n\t"

  1224. 		"shrl $9, %%esi			\n\t"

  1225. 		"movw %%si, (%%edi, %%eax, 2)	\n\t"

  1226. 

  1227. 		"movzbl  (%5, %%ebx), %%edi	\n\t" //src[xx]

  1228. 		"movzbl 1(%5, %%ebx), %%esi	\n\t" //src[xx+1]

  1229. 		"subl %%edi, %%esi		\n\t" //src[xx+1] - src[xx]

  1230. 		"imull %%ecx, %%esi		\n\t" //(src[xx+1] - src[xx])*2*xalpha

  1231. 		"shll $16, %%edi		\n\t"

  1232. 		"addl %%edi, %%esi		\n\t" //src[xx+1]*2*xalpha + src[xx]*(1-2*xalpha)

  1233. 		"movl %1, %%edi			\n\t"

  1234. 		"shrl $9, %%esi			\n\t"

  1235. 		"movw %%si, 4096(%%edi, %%eax, 2)\n\t"

  1236. 

  1237. 		"addw %4, %%cx			\n\t" //2*xalpha += xInc&0xFF

  1238. 		"adcl %3, %%ebx			\n\t" //xx+= xInc>>8 + carry

  1239. 		"addl $1, %%eax			\n\t"

  1240. 		"cmpl %2, %%eax			\n\t"

  1241. 		" jb 1b				\n\t"

  1242. 

  1243. 		:: "m" (src1), "m" (dst), "m" (dstWidth), "m" (xInc>>16), "m" (xInc&0xFFFF),

  1244. 		"r" (src2)

  1245. 		: "%eax", "%ebx", "%ecx", "%edi", "%esi"

  1246. 		);

  1247. #ifdef HAVE_MMX2

  1248. 	} //if MMX2 cant be used

  1249. #endif

  1250. #else

  1251.       for(i=0;i<dstWidth;i++){

  1252. 	  register unsigned int xx=xpos>>16;

  1253.           register unsigned int xalpha=(xpos&0xFFFF)>>9;

  1254. 	  dst[i]=(src1[xx]*(xalpha^127)+src1[xx+1]*xalpha);

  1255. 	  dst[i+2048]=(src2[xx]*(xalpha^127)+src2[xx+1]*xalpha);

  1256. /* slower

  1257. 	  dst[i]= (src1[xx]<<7) + (src1[xx+1] - src1[xx])*xalpha;

  1258. 	  dst[i+2048]=(src2[xx]<<7) + (src2[xx+1] - src2[xx])*xalpha;

  1259. */

  1260. 	  xpos+=xInc;

  1261.       }

  1262. #endif

  1263. }

  1264. 

  1265. 

  1266. // *** bilinear scaling and yuv->rgb or yuv->yuv conversion of yv12 slices:

  1267. // *** Note: it's called multiple times while decoding a frame, first time y==0

  1268. // *** Designed to upscale, but may work for downscale too.

  1269. // s_xinc = (src_width << 16) / dst_width

  1270. // s_yinc = (src_height << 16) / dst_height

  1271. void SwScale_YV12slice(unsigned char* srcptr[],int stride[], int y, int h,

  1272. 			     uint8_t* dstptr[], int dststride, int dstw, int dstbpp,

  1273. 			     unsigned int s_xinc,unsigned int s_yinc){

  1274. 

  1275. // scaling factors:

  1276. //static int s_yinc=(vo_dga_src_height<<16)/vo_dga_vp_height;

  1277. //static int s_xinc=(vo_dga_src_width<<8)/vo_dga_vp_width;

  1278. 

  1279. unsigned int s_xinc2;

  1280. 

  1281. static int s_srcypos; // points to the dst Pixels center in the source (0 is the center of pixel 0,0 in src)

  1282. static int s_ypos;

  1283. 

  1284. // last horzontally interpolated lines, used to avoid unnecessary calculations

  1285. static int s_last_ypos;

  1286. static int s_last_y1pos;

  1287. 

  1288. static int static_dstw;

  1289. 

  1290. #ifdef HAVE_MMX2

  1291. // used to detect a horizontal size change

  1292. static int old_dstw= -1;

  1293. static int old_s_xinc= -1;

  1294. #endif

  1295. 

  1296. int srcWidth= (dstw*s_xinc + 0x8000)>>16;

  1297. int dstUVw= fullUVIpol ? dstw : dstw/2;

  1298. 

  1299. 

  1300. #ifdef HAVE_MMX2

  1301. canMMX2BeUsed= (s_xinc <= 0x10000 && (dstw&31)==0 && (srcWidth&15)==0) ? 1 : 0;

  1302. #endif

  1303. 

  1304. // match pixel 0 of the src to pixel 0 of dst and match pixel n-2 of src to pixel n-2 of dst

  1305. // n-2 is the last chrominance sample available

  1306. // FIXME this is not perfect, but noone shuld notice the difference, the more correct variant

  1307. // would be like the vertical one, but that would require some special code for the

  1308. // first and last pixel

  1309. if(canMMX2BeUsed) 	s_xinc+= 20;

  1310. else			s_xinc = ((srcWidth-2)<<16)/(dstw-2) - 20;

  1311. 

  1312. if(fullUVIpol && !(dstbpp==12)) 	s_xinc2= s_xinc>>1;

  1313. else					s_xinc2= s_xinc;

  1314.   // force calculation of the horizontal interpolation of the first line

  1315. 

  1316.   if(y==0){

  1317. 	s_last_ypos=-99;

  1318. 	s_last_y1pos=-99;

  1319. 	s_srcypos= s_yinc/2 - 0x8000;

  1320. 	s_ypos=0;

  1321. #ifdef HAVE_MMX2

  1322. // cant downscale !!!

  1323. 	if((old_s_xinc != s_xinc || old_dstw!=dstw) && canMMX2BeUsed)

  1324. 	{

  1325. 		uint8_t *fragment;

  1326. 		int imm8OfPShufW1;

  1327. 		int imm8OfPShufW2;

  1328. 		int fragmentLength;

  1329. 

  1330. 		int xpos, xx, xalpha, i;

  1331. 

  1332. 		old_s_xinc= s_xinc;

  1333. 		old_dstw= dstw;

  1334. 

  1335. 		static_dstw= dstw;

  1336. 

  1337. 		// create an optimized horizontal scaling routine

  1338. 

  1339. 		//code fragment

  1340. 

  1341. 		asm volatile(

  1342. 			"jmp 9f				\n\t"

  1343. 		// Begin

  1344. 			"0:				\n\t"

  1345. 			"movq (%%esi), %%mm0		\n\t" //FIXME Alignment

  1346. 			"movq %%mm0, %%mm1		\n\t"

  1347. 			"psrlq $8, %%mm0		\n\t"

  1348. 			"punpcklbw %%mm7, %%mm1	\n\t"

  1349. 			"movq %%mm2, %%mm3		\n\t"

  1350. 			"punpcklbw %%mm7, %%mm0	\n\t"

  1351. 			"addw %%bx, %%cx		\n\t" //2*xalpha += (4*s_xinc)&0xFFFF

  1352. 			"pshufw $0xFF, %%mm1, %%mm1	\n\t"

  1353. 			"1:				\n\t"

  1354. 			"adcl %%edx, %%esi		\n\t" //xx+= (4*s_xinc)>>16 + carry

  1355. 			"pshufw $0xFF, %%mm0, %%mm0	\n\t"

  1356. 			"2:				\n\t"

  1357. 			"psrlw $9, %%mm3		\n\t"

  1358. 			"psubw %%mm1, %%mm0		\n\t"

  1359. 			"pmullw %%mm3, %%mm0		\n\t"

  1360. 			"paddw %%mm6, %%mm2		\n\t" // 2*alpha += xpos&0xFFFF

  1361. 			"psllw $7, %%mm1		\n\t"

  1362. 			"paddw %%mm1, %%mm0		\n\t"

  1363. 

  1364. 			"movq %%mm0, (%%edi, %%eax)	\n\t"

  1365. 

  1366. 			"addl $8, %%eax			\n\t"

  1367. 		// End

  1368. 			"9:				\n\t"

  1369. //		"int $3\n\t"

  1370. 			"leal 0b, %0			\n\t"

  1371. 			"leal 1b, %1			\n\t"

  1372. 			"leal 2b, %2			\n\t"

  1373. 			"decl %1			\n\t"

  1374. 			"decl %2			\n\t"

  1375. 			"subl %0, %1			\n\t"

  1376. 			"subl %0, %2			\n\t"

  1377. 			"leal 9b, %3			\n\t"

  1378. 			"subl %0, %3			\n\t"

  1379. 			:"=r" (fragment), "=r" (imm8OfPShufW1), "=r" (imm8OfPShufW2),

  1380. 			 "=r" (fragmentLength)

  1381. 		);

  1382. 

  1383. 		xpos= 0; //s_xinc/2 - 0x8000; // difference between pixel centers

  1384. 

  1385. 		/* choose xinc so that all 8 parts fit exactly

  1386. 		   Note: we cannot use just 1 part because it would not fit in the code cache */

  1387. //		s_xinc2_diff= -((((s_xinc2*(dstw/8))&0xFFFF))/(dstw/8))-10;

  1388. //		s_xinc_diff= -((((s_xinc*(dstw/8))&0xFFFF))/(dstw/8));

  1389. #ifdef ALT_ERROR

  1390. //		s_xinc2_diff+= ((0x10000/(dstw/8)));

  1391. #endif

  1392. //		s_xinc_diff= s_xinc2_diff*2;

  1393. 

  1394. //		s_xinc2+= s_xinc2_diff;

  1395. //		s_xinc+= s_xinc_diff;

  1396. 

  1397. //		old_s_xinc= s_xinc;

  1398. 

  1399. 		for(i=0; i<dstw/8; i++)

  1400. 		{

  1401. 			int xx=xpos>>16;

  1402. 

  1403. 			if((i&3) == 0)

  1404. 			{

  1405. 				int a=0;

  1406. 				int b=((xpos+s_xinc)>>16) - xx;

  1407. 				int c=((xpos+s_xinc*2)>>16) - xx;

  1408. 				int d=((xpos+s_xinc*3)>>16) - xx;

  1409. 

  1410. 				memcpy(funnyYCode + fragmentLength*i/4, fragment, fragmentLength);

  1411. 

  1412. 				funnyYCode[fragmentLength*i/4 + imm8OfPShufW1]=

  1413. 				funnyYCode[fragmentLength*i/4 + imm8OfPShufW2]=

  1414. 					a | (b<<2) | (c<<4) | (d<<6);

  1415. 

  1416. 				// if we dont need to read 8 bytes than dont :), reduces the chance of

  1417. 				// crossing a cache line

  1418. 				if(d<3) funnyYCode[fragmentLength*i/4 + 1]= 0x6E;

  1419. 

  1420. 				funnyYCode[fragmentLength*(i+4)/4]= RET;

  1421. 			}

  1422. 			xpos+=s_xinc;

  1423. 		}

  1424. 

  1425. 		xpos= 0; //s_xinc2/2 - 0x10000; // difference between centers of chrom samples

  1426. 		for(i=0; i<dstUVw/8; i++)

  1427. 		{

  1428. 			int xx=xpos>>16;

  1429. 

  1430. 			if((i&3) == 0)

  1431. 			{

  1432. 				int a=0;

  1433. 				int b=((xpos+s_xinc2)>>16) - xx;

  1434. 				int c=((xpos+s_xinc2*2)>>16) - xx;

  1435. 				int d=((xpos+s_xinc2*3)>>16) - xx;

  1436. 

  1437. 				memcpy(funnyUVCode + fragmentLength*i/4, fragment, fragmentLength);

  1438. 

  1439. 				funnyUVCode[fragmentLength*i/4 + imm8OfPShufW1]=

  1440. 				funnyUVCode[fragmentLength*i/4 + imm8OfPShufW2]=

  1441. 					a | (b<<2) | (c<<4) | (d<<6);

  1442. 

  1443. 				// if we dont need to read 8 bytes than dont :), reduces the chance of

  1444. 				// crossing a cache line

  1445. 				if(d<3) funnyUVCode[fragmentLength*i/4 + 1]= 0x6E;

  1446. 

  1447. 				funnyUVCode[fragmentLength*(i+4)/4]= RET;

  1448. 			}

  1449. 			xpos+=s_xinc2;

  1450. 		}

  1451. //		funnyCode[0]= RET;

  1452. 	}

  1453. 

  1454. #endif // HAVE_MMX2

  1455.   } // reset counters

  1456. 

  1457.   while(1){

  1458.     unsigned char *dest =dstptr[0]+dststride*s_ypos;

  1459.     unsigned char *uDest=dstptr[1]+(dststride>>1)*(s_ypos>>1);

  1460.     unsigned char *vDest=dstptr[2]+(dststride>>1)*(s_ypos>>1);

  1461. 

  1462.     int y0=(s_srcypos + 0xFFFF)>>16;  // first luminance source line number below the dst line

  1463. 	// points to the dst Pixels center in the source (0 is the center of pixel 0,0 in src)

  1464.     int srcuvpos= dstbpp==12 ?	s_srcypos + s_yinc/2 - 0x8000 :

  1465.     				s_srcypos - 0x8000;

  1466.     int y1=(srcuvpos + 0x1FFFF)>>17; // first chrominance source line number below the dst line

  1467.     int yalpha=((s_srcypos-1)&0xFFFF)>>4;

  1468.     int uvalpha=((srcuvpos-1)&0x1FFFF)>>5;

  1469.     uint16_t *buf0=pix_buf_y[y0&1];		// top line of the interpolated slice

  1470.     uint16_t *buf1=pix_buf_y[((y0+1)&1)];	// bottom line of the interpolated slice

  1471.     uint16_t *uvbuf0=pix_buf_uv[y1&1];		// top line of the interpolated slice

  1472.     uint16_t *uvbuf1=pix_buf_uv[(y1+1)&1];	// bottom line of the interpolated slice

  1473.     int i;

  1474. 

  1475.     if(y0>=y+h) break; // FIXME wrong, skips last lines, but they are dupliactes anyway

  1476. 

  1477.     if((y0&1) && dstbpp==12) uvalpha=-1; // there is no alpha if there is no line

  1478. 

  1479.     s_ypos++; s_srcypos+=s_yinc;

  1480. 

  1481.     //only interpolate the src line horizontally if we didnt do it allready

  1482. 	if(s_last_ypos!=y0)

  1483. 	{

  1484. 		unsigned char *src;

  1485. 		// skip if first line has been horiz scaled alleady

  1486. 		if(s_last_ypos != y0-1)

  1487. 		{

  1488. 			// check if first line is before any available src lines

  1489. 			if(y0-1 < y) 	src=srcptr[0]+(0     )*stride[0];

  1490. 			else		src=srcptr[0]+(y0-y-1)*stride[0];

  1491. 

  1492. 			hyscale(buf0, dstw, src, srcWidth, s_xinc);

  1493. 		}

  1494. 		// check if second line is after any available src lines

  1495. 		if(y0-y >= h)	src=srcptr[0]+(h-1)*stride[0];

  1496. 		else		src=srcptr[0]+(y0-y)*stride[0];

  1497. 

  1498. 		// the min() is required to avoid reuseing lines which where not available

  1499. 		s_last_ypos= MIN(y0, y+h-1);

  1500. 		hyscale(buf1, dstw, src, srcWidth, s_xinc);

  1501. 	}

  1502. //	printf("%d %d %d %d\n", y, y1, s_last_y1pos, h);

  1503.       // *** horizontal scale U and V lines to temp buffer

  1504. 	if(s_last_y1pos!=y1)

  1505. 	{

  1506. 		uint8_t *src1, *src2;

  1507. 		// skip if first line has been horiz scaled alleady

  1508. 		if(s_last_y1pos != y1-1)

  1509. 		{

  1510. 			// check if first line is before any available src lines

  1511. 			if(y1-y/2-1 < 0)

  1512. 			{

  1513. 				src1= srcptr[1]+(0)*stride[1];

  1514. 				src2= srcptr[2]+(0)*stride[2];

  1515. 			}else{

  1516. 				src1= srcptr[1]+(y1-y/2-1)*stride[1];

  1517. 				src2= srcptr[2]+(y1-y/2-1)*stride[2];

  1518. 			}

  1519. 			hcscale(uvbuf0, dstUVw, src1, src2, srcWidth, s_xinc2);

  1520. 		}

  1521. 

  1522. 		// check if second line is after any available src lines

  1523. 		if(y1 - y/2 >= h/2)

  1524. 		{

  1525. 			src1= srcptr[1]+(h/2-1)*stride[1];

  1526. 			src2= srcptr[2]+(h/2-1)*stride[2];

  1527. 		}else{

  1528. 			src1= srcptr[1]+(y1-y/2)*stride[1];

  1529. 			src2= srcptr[2]+(y1-y/2)*stride[2];

  1530. 		}

  1531. 		hcscale(uvbuf1, dstUVw, src1, src2, srcWidth, s_xinc2);

  1532. 

  1533. 		// the min() is required to avoid reuseing lines which where not available

  1534. 		s_last_y1pos= MIN(y1, y/2+h/2-1);

  1535. 	}

  1536. 

  1537. 	if(dstbpp==12) //YV12

  1538. 		yuv2yuv(buf0, buf1, uvbuf0, uvbuf1, dest, uDest, vDest, dstw, yalpha, uvalpha);

  1539. 	else if(ABS(s_yinc - 0x10000) < 10)

  1540. 		yuv2rgb1(buf0, buf1, uvbuf0, uvbuf1, dest, dstw, yalpha, uvalpha, dstbpp);

  1541. 	else

  1542. 		yuv2rgbX(buf0, buf1, uvbuf0, uvbuf1, dest, dstw, yalpha, uvalpha, dstbpp);

  1543. 

  1544. #ifdef HAVE_MMX

  1545.     	b16Dither= b16Dither1;

  1546. 	b16Dither1= b16Dither2;

  1547. 	b16Dither2= b16Dither;

  1548. 

  1549. 	g16Dither= g16Dither1;

  1550. 	g16Dither1= g16Dither2;

  1551. 	g16Dither2= g16Dither;

  1552. #endif

  1553.   }

  1554. 

  1555. #ifdef HAVE_MMX

  1556. 	__asm __volatile(SFENCE:::"memory");

  1557. 	__asm __volatile(EMMS:::"memory");

  1558. #endif

  1559. }

  1560. 

  1561. 

  1562. void SwScale_Init(){

  1563.     // generating tables:

  1564.     int i;

  1565.     for(i=0;i<256;i++){

  1566.         clip_table[i]=0;

  1567.         clip_table[i+256]=i;

  1568.         clip_table[i+512]=255;

  1569. 	yuvtab_2568[i]=(0x2568*(i-16))+(256<<13);

  1570. 	yuvtab_3343[i]=0x3343*(i-128);

  1571. 	yuvtab_0c92[i]=-0x0c92*(i-128);

  1572. 	yuvtab_1a1e[i]=-0x1a1e*(i-128);

  1573. 	yuvtab_40cf[i]=0x40cf*(i-128);

  1574.     }

  1575. 

  1576. }