git.sesse.net Git - ffmpeg/blob - postproc/rgb2rgb_template.c

   1 /*
   2  *
   3  *  rgb2rgb.c, Software RGB to RGB convertor
   4  *  pluralize by Software PAL8 to RGB convertor
   5  *               Software YUV to YUV convertor
   6  *               Software YUV to RGB convertor
   7  *  Written by Nick Kurshev.
   8  *  palette & yuv & runtime cpu stuff by Michael (michaelni@gmx.at) (under GPL)
   9  */
  10
  11 #undef PREFETCH
  12 #undef MOVNTQ
  13 #undef EMMS
  14 #undef SFENCE
  15 #undef MMREG_SIZE
  16 #undef PREFETCHW
  17 #undef PAVGB
  18
  19 #ifdef HAVE_SSE2
  20 #define MMREG_SIZE 16
  21 #else
  22 #define MMREG_SIZE 8
  23 #endif
  24
  25 #ifdef HAVE_3DNOW
  26 #define PREFETCH  "prefetch"
  27 #define PREFETCHW "prefetchw"
  28 #define PAVGB     "pavgusb"
  29 #elif defined ( HAVE_MMX2 )
  30 #define PREFETCH "prefetchnta"
  31 #define PREFETCHW "prefetcht0"
  32 #define PAVGB     "pavgb"
  33 #else
  34 #define PREFETCH "/nop"
  35 #define PREFETCHW "/nop"
  36 #endif
  37
  38 #ifdef HAVE_3DNOW
  39 /* On K6 femms is faster of emms. On K7 femms is directly mapped on emms. */
  40 #define EMMS     "femms"
  41 #else
  42 #define EMMS     "emms"
  43 #endif
  44
  45 #ifdef HAVE_MMX2
  46 #define MOVNTQ "movntq"
  47 #define SFENCE "sfence"
  48 #else
  49 #define MOVNTQ "movq"
  50 #define SFENCE "/nop"
  51 #endif
  52
  53 static inline void RENAME(rgb24to32)(const uint8_t *src,uint8_t *dst,unsigned src_size)
  54 {
  55   uint8_t *dest = dst;
  56   const uint8_t *s = src;
  57   const uint8_t *end;
  58 #ifdef HAVE_MMX
  59   uint8_t *mm_end;
  60 #endif
  61   end = s + src_size;
  62 #ifdef HAVE_MMX
  63   __asm __volatile(PREFETCH"    %0"::"m"(*s):"memory");
  64   mm_end = (uint8_t*)((((unsigned long)end)/(MMREG_SIZE*4))*(MMREG_SIZE*4));
  65   __asm __volatile("movq        %0, %%mm7"::"m"(mask32):"memory");
  66   if(mm_end == end) mm_end -= MMREG_SIZE*4;
  67   while(s < mm_end)
  68   {
  69     __asm __volatile(
  70         PREFETCH"       32%1\n\t"
  71         "movd   %1, %%mm0\n\t"
  72         "punpckldq 3%1, %%mm0\n\t"
  73         "movd   6%1, %%mm1\n\t"
  74         "punpckldq 9%1, %%mm1\n\t"
  75         "movd   12%1, %%mm2\n\t"
  76         "punpckldq 15%1, %%mm2\n\t"
  77         "movd   18%1, %%mm3\n\t"
  78         "punpckldq 21%1, %%mm3\n\t"
  79         "pand   %%mm7, %%mm0\n\t"
  80         "pand   %%mm7, %%mm1\n\t"
  81         "pand   %%mm7, %%mm2\n\t"
  82         "pand   %%mm7, %%mm3\n\t"
  83         MOVNTQ" %%mm0, %0\n\t"
  84         MOVNTQ" %%mm1, 8%0\n\t"
  85         MOVNTQ" %%mm2, 16%0\n\t"
  86         MOVNTQ" %%mm3, 24%0"
  87         :"=m"(*dest)
  88         :"m"(*s)
  89         :"memory");
  90     dest += 32;
  91     s += 24;
  92   }
  93   __asm __volatile(SFENCE:::"memory");
  94   __asm __volatile(EMMS:::"memory");
  95 #endif
  96   while(s < end)
  97   {
  98     *dest++ = *s++;
  99     *dest++ = *s++;
 100     *dest++ = *s++;
 101     *dest++ = 0;
 102   }
 103 }
 104
 105 static inline void RENAME(rgb32to24)(const uint8_t *src,uint8_t *dst,unsigned src_size)
 106 {
 107   uint8_t *dest = dst;
 108   const uint8_t *s = src;
 109   const uint8_t *end;
 110 #ifdef HAVE_MMX
 111   uint8_t *mm_end;
 112 #endif
 113   end = s + src_size;
 114 #ifdef HAVE_MMX
 115   __asm __volatile(PREFETCH"    %0"::"m"(*s):"memory");
 116   mm_end = (uint8_t*)((((unsigned long)end)/(MMREG_SIZE*4))*(MMREG_SIZE*4));
 117   while(s < mm_end)
 118   {
 119     __asm __volatile(
 120         PREFETCH"       32%1\n\t"
 121         "movq   %1, %%mm0\n\t"
 122         "movq   8%1, %%mm1\n\t"
 123         "movq   16%1, %%mm4\n\t"
 124         "movq   24%1, %%mm5\n\t"
 125         "movq   %%mm0, %%mm2\n\t"
 126         "movq   %%mm1, %%mm3\n\t"
 127         "movq   %%mm4, %%mm6\n\t"
 128         "movq   %%mm5, %%mm7\n\t"
 129         "psrlq  $8, %%mm2\n\t"
 130         "psrlq  $8, %%mm3\n\t"
 131         "psrlq  $8, %%mm6\n\t"
 132         "psrlq  $8, %%mm7\n\t"
 133         "pand   %2, %%mm0\n\t"
 134         "pand   %2, %%mm1\n\t"
 135         "pand   %2, %%mm4\n\t"
 136         "pand   %2, %%mm5\n\t"
 137         "pand   %3, %%mm2\n\t"
 138         "pand   %3, %%mm3\n\t"
 139         "pand   %3, %%mm6\n\t"
 140         "pand   %3, %%mm7\n\t"
 141         "por    %%mm2, %%mm0\n\t"
 142         "por    %%mm3, %%mm1\n\t"
 143         "por    %%mm6, %%mm4\n\t"
 144         "por    %%mm7, %%mm5\n\t"
 145
 146         "movq   %%mm1, %%mm2\n\t"
 147         "movq   %%mm4, %%mm3\n\t"
 148         "psllq  $48, %%mm2\n\t"
 149         "psllq  $32, %%mm3\n\t"
 150         "pand   %4, %%mm2\n\t"
 151         "pand   %5, %%mm3\n\t"
 152         "por    %%mm2, %%mm0\n\t"
 153         "psrlq  $16, %%mm1\n\t"
 154         "psrlq  $32, %%mm4\n\t"
 155         "psllq  $16, %%mm5\n\t"
 156         "por    %%mm3, %%mm1\n\t"
 157         "pand   %6, %%mm5\n\t"
 158         "por    %%mm5, %%mm4\n\t"
 159
 160         MOVNTQ" %%mm0, %0\n\t"
 161         MOVNTQ" %%mm1, 8%0\n\t"
 162         MOVNTQ" %%mm4, 16%0"
 163         :"=m"(*dest)
 164         :"m"(*s),"m"(mask24l),
 165          "m"(mask24h),"m"(mask24hh),"m"(mask24hhh),"m"(mask24hhhh)
 166         :"memory");
 167     dest += 24;
 168     s += 32;
 169   }
 170   __asm __volatile(SFENCE:::"memory");
 171   __asm __volatile(EMMS:::"memory");
 172 #endif
 173   while(s < end)
 174   {
 175     *dest++ = *s++;
 176     *dest++ = *s++;
 177     *dest++ = *s++;
 178     s++;
 179   }
 180 }
 181
 182 /*
 183  Original by Strepto/Astral
 184  ported to gcc & bugfixed : A'rpi
 185  MMX2, 3DNOW optimization by Nick Kurshev
 186  32bit c version, and and&add trick by Michael Niedermayer
 187 */
 188 static inline void RENAME(rgb15to16)(const uint8_t *src,uint8_t *dst,unsigned src_size)
 189 {
 190 #ifdef HAVE_MMX
 191   register const char* s=src+src_size;
 192   register char* d=dst+src_size;
 193   register int offs=-src_size;
 194   __asm __volatile(PREFETCH"    %0"::"m"(*(s+offs)));
 195   __asm __volatile(
 196         "movq   %0, %%mm4\n\t"
 197         ::"m"(mask15s));
 198   while(offs<0)
 199   {
 200         __asm __volatile(
 201                 PREFETCH"       32%1\n\t"
 202                 "movq   %1, %%mm0\n\t"
 203                 "movq   8%1, %%mm2\n\t"
 204                 "movq   %%mm0, %%mm1\n\t"
 205                 "movq   %%mm2, %%mm3\n\t"
 206                 "pand   %%mm4, %%mm0\n\t"
 207                 "pand   %%mm4, %%mm2\n\t"
 208                 "paddw  %%mm1, %%mm0\n\t"
 209                 "paddw  %%mm3, %%mm2\n\t"
 210                 MOVNTQ" %%mm0, %0\n\t"
 211                 MOVNTQ" %%mm2, 8%0"
 212                 :"=m"(*(d+offs))
 213                 :"m"(*(s+offs))
 214                 );
 215         offs+=16;
 216   }
 217   __asm __volatile(SFENCE:::"memory");
 218   __asm __volatile(EMMS:::"memory");
 219 #else
 220 #if 0
 221    const uint16_t *s1=( uint16_t * )src;
 222    uint16_t *d1=( uint16_t * )dst;
 223    uint16_t *e=((uint8_t *)s1)+src_size;
 224    while( s1<e ){
 225      register int x=*( s1++ );
 226      /* rrrrrggggggbbbbb
 227         0rrrrrgggggbbbbb
 228         0111 1111 1110 0000=0x7FE0
 229         00000000000001 1111=0x001F */
 230      *( d1++ )=( x&0x001F )|( ( x&0x7FE0 )<<1 );
 231    }
 232 #else
 233         const unsigned *s1=( unsigned * )src;
 234         unsigned *d1=( unsigned * )dst;
 235         int i;
 236         int size= src_size>>2;
 237         for(i=0; i<size; i++)
 238         {
 239                 register int x= s1[i];
 240 //              d1[i] = x + (x&0x7FE07FE0); //faster but need msbit =0 which might not allways be true
 241                 d1[i] = (x&0x7FFF7FFF) + (x&0x7FE07FE0);
 242
 243         }
 244 #endif
 245 #endif
 246 }
 247
 248 static inline void RENAME(rgb32to16)(const uint8_t *src, uint8_t *dst, unsigned src_size)
 249 {
 250 #ifdef HAVE_MMX
 251         const uint8_t *s = src;
 252         const uint8_t *end,*mm_end;
 253         uint16_t *d = (uint16_t *)dst;
 254         end = s + src_size;
 255         mm_end = (uint8_t*)((((unsigned long)end)/(MMREG_SIZE*2))*(MMREG_SIZE*2));
 256         __asm __volatile(PREFETCH"      %0"::"m"(*src):"memory");
 257         __asm __volatile(
 258             "movq       %0, %%mm7\n\t"
 259             "movq       %1, %%mm6\n\t"
 260             ::"m"(red_16mask),"m"(green_16mask));
 261         while(s < mm_end)
 262         {
 263             __asm __volatile(
 264                 PREFETCH" 32%1\n\t"
 265                 "movd   %1, %%mm0\n\t"
 266                 "movd   4%1, %%mm3\n\t"
 267                 "punpckldq 8%1, %%mm0\n\t"
 268                 "punpckldq 12%1, %%mm3\n\t"
 269                 "movq   %%mm0, %%mm1\n\t"
 270                 "movq   %%mm0, %%mm2\n\t"
 271                 "movq   %%mm3, %%mm4\n\t"
 272                 "movq   %%mm3, %%mm5\n\t"
 273                 "psrlq  $3, %%mm0\n\t"
 274                 "psrlq  $3, %%mm3\n\t"
 275                 "pand   %2, %%mm0\n\t"
 276                 "pand   %2, %%mm3\n\t"
 277                 "psrlq  $5, %%mm1\n\t"
 278                 "psrlq  $5, %%mm4\n\t"
 279                 "pand   %%mm6, %%mm1\n\t"
 280                 "pand   %%mm6, %%mm4\n\t"
 281                 "psrlq  $8, %%mm2\n\t"
 282                 "psrlq  $8, %%mm5\n\t"
 283                 "pand   %%mm7, %%mm2\n\t"
 284                 "pand   %%mm7, %%mm5\n\t"
 285                 "por    %%mm1, %%mm0\n\t"
 286                 "por    %%mm4, %%mm3\n\t"
 287                 "por    %%mm2, %%mm0\n\t"
 288                 "por    %%mm5, %%mm3\n\t"
 289                 "psllq  $16, %%mm3\n\t"
 290                 "por    %%mm3, %%mm0\n\t"
 291                 MOVNTQ" %%mm0, %0\n\t"
 292                 :"=m"(*d):"m"(*s),"m"(blue_16mask):"memory");
 293                 d += 4;
 294                 s += 16;
 295         }
 296         while(s < end)
 297         {
 298                 const int b= *s++;
 299                 const int g= *s++;
 300                 const int r= *s++;
 301                 *d++ = (b>>3) | ((g&0xFC)<<3) | ((r&0xF8)<<8);
 302         }
 303         __asm __volatile(SFENCE:::"memory");
 304         __asm __volatile(EMMS:::"memory");
 305 #else
 306         unsigned j,i,num_pixels=src_size/4;
 307         uint16_t *d = (uint16_t *)dst;
 308         for(i=0,j=0; j<num_pixels; i+=4,j++)
 309         {
 310                 const int b= src[i+0];
 311                 const int g= src[i+1];
 312                 const int r= src[i+2];
 313
 314                 d[j]= (b>>3) | ((g&0xFC)<<3) | ((r&0xF8)<<8);
 315         }
 316 #endif
 317 }
 318
 319 static inline void RENAME(rgb32to15)(const uint8_t *src, uint8_t *dst, unsigned src_size)
 320 {
 321 #ifdef HAVE_MMX
 322         const uint8_t *s = src;
 323         const uint8_t *end,*mm_end;
 324         uint16_t *d = (uint16_t *)dst;
 325         end = s + src_size;
 326         mm_end = (uint8_t*)((((unsigned long)end)/(MMREG_SIZE*2))*(MMREG_SIZE*2));
 327         __asm __volatile(PREFETCH"      %0"::"m"(*src):"memory");
 328         __asm __volatile(
 329             "movq       %0, %%mm7\n\t"
 330             "movq       %1, %%mm6\n\t"
 331             ::"m"(red_15mask),"m"(green_15mask));
 332         while(s < mm_end)
 333         {
 334             __asm __volatile(
 335                 PREFETCH" 32%1\n\t"
 336                 "movd   %1, %%mm0\n\t"
 337                 "movd   4%1, %%mm3\n\t"
 338                 "punpckldq 8%1, %%mm0\n\t"
 339                 "punpckldq 12%1, %%mm3\n\t"
 340                 "movq   %%mm0, %%mm1\n\t"
 341                 "movq   %%mm0, %%mm2\n\t"
 342                 "movq   %%mm3, %%mm4\n\t"
 343                 "movq   %%mm3, %%mm5\n\t"
 344                 "psrlq  $3, %%mm0\n\t"
 345                 "psrlq  $3, %%mm3\n\t"
 346                 "pand   %2, %%mm0\n\t"
 347                 "pand   %2, %%mm3\n\t"
 348                 "psrlq  $6, %%mm1\n\t"
 349                 "psrlq  $6, %%mm4\n\t"
 350                 "pand   %%mm6, %%mm1\n\t"
 351                 "pand   %%mm6, %%mm4\n\t"
 352                 "psrlq  $9, %%mm2\n\t"
 353                 "psrlq  $9, %%mm5\n\t"
 354                 "pand   %%mm7, %%mm2\n\t"
 355                 "pand   %%mm7, %%mm5\n\t"
 356                 "por    %%mm1, %%mm0\n\t"
 357                 "por    %%mm4, %%mm3\n\t"
 358                 "por    %%mm2, %%mm0\n\t"
 359                 "por    %%mm5, %%mm3\n\t"
 360                 "psllq  $16, %%mm3\n\t"
 361                 "por    %%mm3, %%mm0\n\t"
 362                 MOVNTQ" %%mm0, %0\n\t"
 363                 :"=m"(*d):"m"(*s),"m"(blue_15mask):"memory");
 364                 d += 4;
 365                 s += 16;
 366         }
 367         while(s < end)
 368         {
 369                 const int b= *s++;
 370                 const int g= *s++;
 371                 const int r= *s++;
 372                 *d++ = (b>>3) | ((g&0xF8)<<2) | ((r&0xF8)<<7);
 373         }
 374         __asm __volatile(SFENCE:::"memory");
 375         __asm __volatile(EMMS:::"memory");
 376 #else
 377         unsigned j,i,num_pixels=src_size/4;
 378         uint16_t *d = (uint16_t *)dst;
 379         for(i=0,j=0; j<num_pixels; i+=4,j++)
 380         {
 381                 const int b= src[i+0];
 382                 const int g= src[i+1];
 383                 const int r= src[i+2];
 384
 385                 d[j]= (b>>3) | ((g&0xF8)<<2) | ((r&0xF8)<<7);
 386         }
 387 #endif
 388 }
 389
 390 static inline void RENAME(rgb24to16)(const uint8_t *src, uint8_t *dst, unsigned src_size)
 391 {
 392 #ifdef HAVE_MMX
 393         const uint8_t *s = src;
 394         const uint8_t *end,*mm_end;
 395         uint16_t *d = (uint16_t *)dst;
 396         end = s + src_size;
 397         mm_end = (uint8_t*)((((unsigned long)end)/(MMREG_SIZE*2))*(MMREG_SIZE*2));
 398         __asm __volatile(PREFETCH"      %0"::"m"(*src):"memory");
 399         __asm __volatile(
 400             "movq       %0, %%mm7\n\t"
 401             "movq       %1, %%mm6\n\t"
 402             ::"m"(red_16mask),"m"(green_16mask));
 403         if(mm_end == end) mm_end -= MMREG_SIZE*2;
 404         while(s < mm_end)
 405         {
 406             __asm __volatile(
 407                 PREFETCH" 32%1\n\t"
 408                 "movd   %1, %%mm0\n\t"
 409                 "movd   3%1, %%mm3\n\t"
 410                 "punpckldq 6%1, %%mm0\n\t"
 411                 "punpckldq 9%1, %%mm3\n\t"
 412                 "movq   %%mm0, %%mm1\n\t"
 413                 "movq   %%mm0, %%mm2\n\t"
 414                 "movq   %%mm3, %%mm4\n\t"
 415                 "movq   %%mm3, %%mm5\n\t"
 416                 "psrlq  $3, %%mm0\n\t"
 417                 "psrlq  $3, %%mm3\n\t"
 418                 "pand   %2, %%mm0\n\t"
 419                 "pand   %2, %%mm3\n\t"
 420                 "psrlq  $5, %%mm1\n\t"
 421                 "psrlq  $5, %%mm4\n\t"
 422                 "pand   %%mm6, %%mm1\n\t"
 423                 "pand   %%mm6, %%mm4\n\t"
 424                 "psrlq  $8, %%mm2\n\t"
 425                 "psrlq  $8, %%mm5\n\t"
 426                 "pand   %%mm7, %%mm2\n\t"
 427                 "pand   %%mm7, %%mm5\n\t"
 428                 "por    %%mm1, %%mm0\n\t"
 429                 "por    %%mm4, %%mm3\n\t"
 430                 "por    %%mm2, %%mm0\n\t"
 431                 "por    %%mm5, %%mm3\n\t"
 432                 "psllq  $16, %%mm3\n\t"
 433                 "por    %%mm3, %%mm0\n\t"
 434                 MOVNTQ" %%mm0, %0\n\t"
 435                 :"=m"(*d):"m"(*s),"m"(blue_16mask):"memory");
 436                 d += 4;
 437                 s += 12;
 438         }
 439         while(s < end)
 440         {
 441                 const int b= *s++;
 442                 const int g= *s++;
 443                 const int r= *s++;
 444                 *d++ = (b>>3) | ((g&0xFC)<<3) | ((r&0xF8)<<8);
 445         }
 446         __asm __volatile(SFENCE:::"memory");
 447         __asm __volatile(EMMS:::"memory");
 448 #else
 449         unsigned j,i,num_pixels=src_size/3;
 450         uint16_t *d = (uint16_t *)dst;
 451         for(i=0,j=0; j<num_pixels; i+=3,j++)
 452         {
 453                 const int b= src[i+0];
 454                 const int g= src[i+1];
 455                 const int r= src[i+2];
 456
 457                 d[j]= (b>>3) | ((g&0xFC)<<3) | ((r&0xF8)<<8);
 458         }
 459 #endif
 460 }
 461
 462 static inline void RENAME(rgb24to15)(const uint8_t *src, uint8_t *dst, unsigned src_size)
 463 {
 464 #ifdef HAVE_MMX
 465         const uint8_t *s = src;
 466         const uint8_t *end,*mm_end;
 467         uint16_t *d = (uint16_t *)dst;
 468         end = s + src_size;
 469         mm_end = (uint8_t*)((((unsigned long)end)/(MMREG_SIZE*2))*(MMREG_SIZE*2));
 470         __asm __volatile(PREFETCH"      %0"::"m"(*src):"memory");
 471         __asm __volatile(
 472             "movq       %0, %%mm7\n\t"
 473             "movq       %1, %%mm6\n\t"
 474             ::"m"(red_15mask),"m"(green_15mask));
 475         if(mm_end == end) mm_end -= MMREG_SIZE*2;
 476         while(s < mm_end)
 477         {
 478             __asm __volatile(
 479                 PREFETCH" 32%1\n\t"
 480                 "movd   %1, %%mm0\n\t"
 481                 "movd   3%1, %%mm3\n\t"
 482                 "punpckldq 6%1, %%mm0\n\t"
 483                 "punpckldq 9%1, %%mm3\n\t"
 484                 "movq   %%mm0, %%mm1\n\t"
 485                 "movq   %%mm0, %%mm2\n\t"
 486                 "movq   %%mm3, %%mm4\n\t"
 487                 "movq   %%mm3, %%mm5\n\t"
 488                 "psrlq  $3, %%mm0\n\t"
 489                 "psrlq  $3, %%mm3\n\t"
 490                 "pand   %2, %%mm0\n\t"
 491                 "pand   %2, %%mm3\n\t"
 492                 "psrlq  $6, %%mm1\n\t"
 493                 "psrlq  $6, %%mm4\n\t"
 494                 "pand   %%mm6, %%mm1\n\t"
 495                 "pand   %%mm6, %%mm4\n\t"
 496                 "psrlq  $9, %%mm2\n\t"
 497                 "psrlq  $9, %%mm5\n\t"
 498                 "pand   %%mm7, %%mm2\n\t"
 499                 "pand   %%mm7, %%mm5\n\t"
 500                 "por    %%mm1, %%mm0\n\t"
 501                 "por    %%mm4, %%mm3\n\t"
 502                 "por    %%mm2, %%mm0\n\t"
 503                 "por    %%mm5, %%mm3\n\t"
 504                 "psllq  $16, %%mm3\n\t"
 505                 "por    %%mm3, %%mm0\n\t"
 506                 MOVNTQ" %%mm0, %0\n\t"
 507                 :"=m"(*d):"m"(*s),"m"(blue_15mask):"memory");
 508                 d += 4;
 509                 s += 12;
 510         }
 511         while(s < end)
 512         {
 513                 const int b= *s++;
 514                 const int g= *s++;
 515                 const int r= *s++;
 516                 *d++ = (b>>3) | ((g&0xF8)<<2) | ((r&0xF8)<<7);
 517         }
 518         __asm __volatile(SFENCE:::"memory");
 519         __asm __volatile(EMMS:::"memory");
 520 #else
 521         unsigned j,i,num_pixels=src_size/3;
 522         uint16_t *d = (uint16_t *)dst;
 523         for(i=0,j=0; j<num_pixels; i+=3,j++)
 524         {
 525                 const int b= src[i+0];
 526                 const int g= src[i+1];
 527                 const int r= src[i+2];
 528
 529                 d[j]= (b>>3) | ((g&0xF8)<<2) | ((r&0xF8)<<7);
 530         }
 531 #endif
 532 }
 533
 534 static inline void RENAME(rgb32tobgr32)(const uint8_t *src, uint8_t *dst, unsigned int src_size)
 535 {
 536         int num_pixels= src_size >> 2;
 537 #ifdef HAVE_MMX
 538         asm volatile (
 539                 "xorl %%eax, %%eax              \n\t"
 540                 ".balign 16                     \n\t"
 541                 "1:                             \n\t"
 542                 PREFETCH" 32(%0, %%eax)         \n\t"
 543                 "movq (%0, %%eax), %%mm0        \n\t"
 544                 "movq %%mm0, %%mm1              \n\t"
 545                 "movq %%mm0, %%mm2              \n\t"
 546                 "pslld $16, %%mm0               \n\t"
 547                 "psrld $16, %%mm1               \n\t"
 548                 "pand mask32r, %%mm0            \n\t"
 549                 "pand mask32g, %%mm2            \n\t"
 550                 "pand mask32b, %%mm1            \n\t"
 551                 "por %%mm0, %%mm2               \n\t"
 552                 "por %%mm1, %%mm2               \n\t"
 553                 MOVNTQ" %%mm2, (%1, %%eax)      \n\t"
 554                 "addl $2, %%eax                 \n\t"
 555                 "cmpl %2, %%eax                 \n\t"
 556                 " jb 1b                         \n\t"
 557                 :: "r" (src), "r"(dst), "r" (num_pixels)
 558                 : "%eax"
 559         );
 560
 561         __asm __volatile(SFENCE:::"memory");
 562         __asm __volatile(EMMS:::"memory");
 563 #else
 564         int i;
 565         for(i=0; i<num_pixels; i++)
 566         {
 567                 dst[4*i + 0] = src[4*i + 2];
 568                 dst[4*i + 1] = src[4*i + 1];
 569                 dst[4*i + 2] = src[4*i + 0];
 570         }
 571 #endif
 572 }
 573
 574 /**
 575  *
 576  * height should be a multiple of 2 and width should be a multiple of 16 (if this is a
 577  * problem for anyone then tell me, and ill fix it)
 578  */
 579 static inline void RENAME(yv12toyuy2)(const uint8_t *ysrc, const uint8_t *usrc, const uint8_t *vsrc, uint8_t *dst,
 580         unsigned int width, unsigned int height,
 581         unsigned int lumStride, unsigned int chromStride, unsigned int dstStride)
 582 {
 583         int y;
 584         const int chromWidth= width>>1;
 585         for(y=0; y<height; y++)
 586         {
 587 #ifdef HAVE_MMX
 588 //FIXME handle 2 lines a once (fewer prefetch, reuse some chrom, but very likely limited by mem anyway)
 589                 asm volatile(
 590                         "xorl %%eax, %%eax              \n\t"
 591                         ".balign 16                     \n\t"
 592                         "1:                             \n\t"
 593                         PREFETCH" 32(%1, %%eax, 2)      \n\t"
 594                         PREFETCH" 32(%2, %%eax)         \n\t"
 595                         PREFETCH" 32(%3, %%eax)         \n\t"
 596                         "movq (%2, %%eax), %%mm0        \n\t" // U(0)
 597                         "movq %%mm0, %%mm2              \n\t" // U(0)
 598                         "movq (%3, %%eax), %%mm1        \n\t" // V(0)
 599                         "punpcklbw %%mm1, %%mm0         \n\t" // UVUV UVUV(0)
 600                         "punpckhbw %%mm1, %%mm2         \n\t" // UVUV UVUV(8)
 601
 602                         "movq (%1, %%eax,2), %%mm3      \n\t" // Y(0)
 603                         "movq 8(%1, %%eax,2), %%mm5     \n\t" // Y(8)
 604                         "movq %%mm3, %%mm4              \n\t" // Y(0)
 605                         "movq %%mm5, %%mm6              \n\t" // Y(8)
 606                         "punpcklbw %%mm0, %%mm3         \n\t" // YUYV YUYV(0)
 607                         "punpckhbw %%mm0, %%mm4         \n\t" // YUYV YUYV(4)
 608                         "punpcklbw %%mm2, %%mm5         \n\t" // YUYV YUYV(8)
 609                         "punpckhbw %%mm2, %%mm6         \n\t" // YUYV YUYV(12)
 610
 611                         MOVNTQ" %%mm3, (%0, %%eax, 4)   \n\t"
 612                         MOVNTQ" %%mm4, 8(%0, %%eax, 4)  \n\t"
 613                         MOVNTQ" %%mm5, 16(%0, %%eax, 4) \n\t"
 614                         MOVNTQ" %%mm6, 24(%0, %%eax, 4) \n\t"
 615
 616                         "addl $8, %%eax                 \n\t"
 617                         "cmpl %4, %%eax                 \n\t"
 618                         " jb 1b                         \n\t"
 619                         ::"r"(dst), "r"(ysrc), "r"(usrc), "r"(vsrc), "r" (chromWidth)
 620                         : "%eax"
 621                 );
 622 #else
 623                 int i;
 624                 for(i=0; i<chromWidth; i++)
 625                 {
 626                         dst[4*i+0] = ysrc[2*i+0];
 627                         dst[4*i+1] = usrc[i];
 628                         dst[4*i+2] = ysrc[2*i+1];
 629                         dst[4*i+3] = vsrc[i];
 630                 }
 631 #endif
 632                 if(y&1)
 633                 {
 634                         usrc += chromStride;
 635                         vsrc += chromStride;
 636                 }
 637                 ysrc += lumStride;
 638                 dst += dstStride;
 639         }
 640 #ifdef HAVE_MMX
 641 asm(    EMMS" \n\t"
 642         SFENCE" \n\t"
 643         :::"memory");
 644 #endif
 645 }
 646
 647 /**
 648  *
 649  * height should be a multiple of 2 and width should be a multiple of 16 (if this is a
 650  * problem for anyone then tell me, and ill fix it)
 651  */
 652 static inline void RENAME(yuy2toyv12)(const uint8_t *src, uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
 653         unsigned int width, unsigned int height,
 654         unsigned int lumStride, unsigned int chromStride, unsigned int srcStride)
 655 {
 656         int y;
 657         const int chromWidth= width>>1;
 658         for(y=0; y<height; y+=2)
 659         {
 660 #ifdef HAVE_MMX
 661                 asm volatile(
 662                         "xorl %%eax, %%eax              \n\t"
 663                         "pcmpeqw %%mm7, %%mm7           \n\t"
 664                         "psrlw $8, %%mm7                \n\t" // FF,00,FF,00...
 665                         ".balign 16                     \n\t"
 666                         "1:                             \n\t"
 667                         PREFETCH" 64(%0, %%eax, 4)      \n\t"
 668                         "movq (%0, %%eax, 4), %%mm0     \n\t" // YUYV YUYV(0)
 669                         "movq 8(%0, %%eax, 4), %%mm1    \n\t" // YUYV YUYV(4)
 670                         "movq %%mm0, %%mm2              \n\t" // YUYV YUYV(0)
 671                         "movq %%mm1, %%mm3              \n\t" // YUYV YUYV(4)
 672                         "psrlw $8, %%mm0                \n\t" // U0V0 U0V0(0)
 673                         "psrlw $8, %%mm1                \n\t" // U0V0 U0V0(4)
 674                         "pand %%mm7, %%mm2              \n\t" // Y0Y0 Y0Y0(0)
 675                         "pand %%mm7, %%mm3              \n\t" // Y0Y0 Y0Y0(4)
 676                         "packuswb %%mm1, %%mm0          \n\t" // UVUV UVUV(0)
 677                         "packuswb %%mm3, %%mm2          \n\t" // YYYY YYYY(0)
 678
 679                         MOVNTQ" %%mm2, (%1, %%eax, 2)   \n\t"
 680
 681                         "movq 16(%0, %%eax, 4), %%mm1   \n\t" // YUYV YUYV(8)
 682                         "movq 24(%0, %%eax, 4), %%mm2   \n\t" // YUYV YUYV(12)
 683                         "movq %%mm1, %%mm3              \n\t" // YUYV YUYV(8)
 684                         "movq %%mm2, %%mm4              \n\t" // YUYV YUYV(12)
 685                         "psrlw $8, %%mm1                \n\t" // U0V0 U0V0(8)
 686                         "psrlw $8, %%mm2                \n\t" // U0V0 U0V0(12)
 687                         "pand %%mm7, %%mm3              \n\t" // Y0Y0 Y0Y0(8)
 688                         "pand %%mm7, %%mm4              \n\t" // Y0Y0 Y0Y0(12)
 689                         "packuswb %%mm2, %%mm1          \n\t" // UVUV UVUV(8)
 690                         "packuswb %%mm4, %%mm3          \n\t" // YYYY YYYY(8)
 691
 692                         MOVNTQ" %%mm3, 8(%1, %%eax, 2)  \n\t"
 693
 694                         "movq %%mm0, %%mm2              \n\t" // UVUV UVUV(0)
 695                         "movq %%mm1, %%mm3              \n\t" // UVUV UVUV(8)
 696                         "psrlw $8, %%mm0                \n\t" // V0V0 V0V0(0)
 697                         "psrlw $8, %%mm1                \n\t" // V0V0 V0V0(8)
 698                         "pand %%mm7, %%mm2              \n\t" // U0U0 U0U0(0)
 699                         "pand %%mm7, %%mm3              \n\t" // U0U0 U0U0(8)
 700                         "packuswb %%mm1, %%mm0          \n\t" // VVVV VVVV(0)
 701                         "packuswb %%mm3, %%mm2          \n\t" // UUUU UUUU(0)
 702
 703                         MOVNTQ" %%mm0, (%3, %%eax)      \n\t"
 704                         MOVNTQ" %%mm2, (%2, %%eax)      \n\t"
 705
 706                         "addl $8, %%eax                 \n\t"
 707                         "cmpl %4, %%eax                 \n\t"
 708                         " jb 1b                         \n\t"
 709                         ::"r"(src), "r"(ydst), "r"(udst), "r"(vdst), "r" (chromWidth)
 710                         : "memory", "%eax"
 711                 );
 712
 713                 ydst += lumStride;
 714                 src  += srcStride;
 715
 716                 asm volatile(
 717                         "xorl %%eax, %%eax              \n\t"
 718                         ".balign 16                     \n\t"
 719                         "1:                             \n\t"
 720                         PREFETCH" 64(%0, %%eax, 4)      \n\t"
 721                         "movq (%0, %%eax, 4), %%mm0     \n\t" // YUYV YUYV(0)
 722                         "movq 8(%0, %%eax, 4), %%mm1    \n\t" // YUYV YUYV(4)
 723                         "movq 16(%0, %%eax, 4), %%mm2   \n\t" // YUYV YUYV(8)
 724                         "movq 24(%0, %%eax, 4), %%mm3   \n\t" // YUYV YUYV(12)
 725                         "pand %%mm7, %%mm0              \n\t" // Y0Y0 Y0Y0(0)
 726                         "pand %%mm7, %%mm1              \n\t" // Y0Y0 Y0Y0(4)
 727                         "pand %%mm7, %%mm2              \n\t" // Y0Y0 Y0Y0(8)
 728                         "pand %%mm7, %%mm3              \n\t" // Y0Y0 Y0Y0(12)
 729                         "packuswb %%mm1, %%mm0          \n\t" // YYYY YYYY(0)
 730                         "packuswb %%mm3, %%mm2          \n\t" // YYYY YYYY(8)
 731
 732                         MOVNTQ" %%mm0, (%1, %%eax, 2)   \n\t"
 733                         MOVNTQ" %%mm2, 8(%1, %%eax, 2)  \n\t"
 734
 735                         "addl $8, %%eax                 \n\t"
 736                         "cmpl %4, %%eax                 \n\t"
 737                         " jb 1b                         \n\t"
 738
 739                         ::"r"(src), "r"(ydst), "r"(udst), "r"(vdst), "r" (chromWidth)
 740                         : "memory", "%eax"
 741                 );
 742 #else
 743                 int i;
 744                 for(i=0; i<chromWidth; i++)
 745                 {
 746                         ydst[2*i+0]     = src[4*i+0];
 747                         udst[i]         = src[4*i+1];
 748                         ydst[2*i+1]     = src[4*i+2];
 749                         vdst[i]         = src[4*i+3];
 750                 }
 751                 ydst += lumStride;
 752                 src  += srcStride;
 753
 754                 for(i=0; i<chromWidth; i++)
 755                 {
 756                         ydst[2*i+0]     = src[4*i+0];
 757                         ydst[2*i+1]     = src[4*i+2];
 758                 }
 759 #endif
 760                 udst += chromStride;
 761                 vdst += chromStride;
 762                 ydst += lumStride;
 763                 src  += srcStride;
 764         }
 765 #ifdef HAVE_MMX
 766 asm volatile(   EMMS" \n\t"
 767                 SFENCE" \n\t"
 768                 :::"memory");
 769 #endif
 770 }
 771
 772 /**
 773  *
 774  * height should be a multiple of 2 and width should be a multiple of 16 (if this is a
 775  * problem for anyone then tell me, and ill fix it)
 776  * chrominance data is only taken from every secound line others are ignored FIXME write HQ version
 777  */
 778 static inline void RENAME(uyvytoyv12)(const uint8_t *src, uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
 779         unsigned int width, unsigned int height,
 780         unsigned int lumStride, unsigned int chromStride, unsigned int srcStride)
 781 {
 782         int y;
 783         const int chromWidth= width>>1;
 784         for(y=0; y<height; y+=2)
 785         {
 786 #ifdef HAVE_MMX
 787                 asm volatile(
 788                         "xorl %%eax, %%eax              \n\t"
 789                         "pcmpeqw %%mm7, %%mm7           \n\t"
 790                         "psrlw $8, %%mm7                \n\t" // FF,00,FF,00...
 791                         ".balign 16                     \n\t"
 792                         "1:                             \n\t"
 793                         PREFETCH" 64(%0, %%eax, 4)      \n\t"
 794                         "movq (%0, %%eax, 4), %%mm0     \n\t" // UYVY UYVY(0)
 795                         "movq 8(%0, %%eax, 4), %%mm1    \n\t" // UYVY UYVY(4)
 796                         "movq %%mm0, %%mm2              \n\t" // UYVY UYVY(0)
 797                         "movq %%mm1, %%mm3              \n\t" // UYVY UYVY(4)
 798                         "pand %%mm7, %%mm0              \n\t" // U0V0 U0V0(0)
 799                         "pand %%mm7, %%mm1              \n\t" // U0V0 U0V0(4)
 800                         "psrlw $8, %%mm2                \n\t" // Y0Y0 Y0Y0(0)
 801                         "psrlw $8, %%mm3                \n\t" // Y0Y0 Y0Y0(4)
 802                         "packuswb %%mm1, %%mm0          \n\t" // UVUV UVUV(0)
 803                         "packuswb %%mm3, %%mm2          \n\t" // YYYY YYYY(0)
 804
 805                         MOVNTQ" %%mm2, (%1, %%eax, 2)   \n\t"
 806
 807                         "movq 16(%0, %%eax, 4), %%mm1   \n\t" // UYVY UYVY(8)
 808                         "movq 24(%0, %%eax, 4), %%mm2   \n\t" // UYVY UYVY(12)
 809                         "movq %%mm1, %%mm3              \n\t" // UYVY UYVY(8)
 810                         "movq %%mm2, %%mm4              \n\t" // UYVY UYVY(12)
 811                         "pand %%mm7, %%mm1              \n\t" // U0V0 U0V0(8)
 812                         "pand %%mm7, %%mm2              \n\t" // U0V0 U0V0(12)
 813                         "psrlw $8, %%mm3                \n\t" // Y0Y0 Y0Y0(8)
 814                         "psrlw $8, %%mm4                \n\t" // Y0Y0 Y0Y0(12)
 815                         "packuswb %%mm2, %%mm1          \n\t" // UVUV UVUV(8)
 816                         "packuswb %%mm4, %%mm3          \n\t" // YYYY YYYY(8)
 817
 818                         MOVNTQ" %%mm3, 8(%1, %%eax, 2)  \n\t"
 819
 820                         "movq %%mm0, %%mm2              \n\t" // UVUV UVUV(0)
 821                         "movq %%mm1, %%mm3              \n\t" // UVUV UVUV(8)
 822                         "psrlw $8, %%mm0                \n\t" // V0V0 V0V0(0)
 823                         "psrlw $8, %%mm1                \n\t" // V0V0 V0V0(8)
 824                         "pand %%mm7, %%mm2              \n\t" // U0U0 U0U0(0)
 825                         "pand %%mm7, %%mm3              \n\t" // U0U0 U0U0(8)
 826                         "packuswb %%mm1, %%mm0          \n\t" // VVVV VVVV(0)
 827                         "packuswb %%mm3, %%mm2          \n\t" // UUUU UUUU(0)
 828
 829                         MOVNTQ" %%mm0, (%3, %%eax)      \n\t"
 830                         MOVNTQ" %%mm2, (%2, %%eax)      \n\t"
 831
 832                         "addl $8, %%eax                 \n\t"
 833                         "cmpl %4, %%eax                 \n\t"
 834                         " jb 1b                         \n\t"
 835                         ::"r"(src), "r"(ydst), "r"(udst), "r"(vdst), "r" (chromWidth)
 836                         : "memory", "%eax"
 837                 );
 838
 839                 ydst += lumStride;
 840                 src  += srcStride;
 841
 842                 asm volatile(
 843                         "xorl %%eax, %%eax              \n\t"
 844                         ".balign 16                     \n\t"
 845                         "1:                             \n\t"
 846                         PREFETCH" 64(%0, %%eax, 4)      \n\t"
 847                         "movq (%0, %%eax, 4), %%mm0     \n\t" // YUYV YUYV(0)
 848                         "movq 8(%0, %%eax, 4), %%mm1    \n\t" // YUYV YUYV(4)
 849                         "movq 16(%0, %%eax, 4), %%mm2   \n\t" // YUYV YUYV(8)
 850                         "movq 24(%0, %%eax, 4), %%mm3   \n\t" // YUYV YUYV(12)
 851                         "psrlw $8, %%mm0                \n\t" // Y0Y0 Y0Y0(0)
 852                         "psrlw $8, %%mm1                \n\t" // Y0Y0 Y0Y0(4)
 853                         "psrlw $8, %%mm2                \n\t" // Y0Y0 Y0Y0(8)
 854                         "psrlw $8, %%mm3                \n\t" // Y0Y0 Y0Y0(12)
 855                         "packuswb %%mm1, %%mm0          \n\t" // YYYY YYYY(0)
 856                         "packuswb %%mm3, %%mm2          \n\t" // YYYY YYYY(8)
 857
 858                         MOVNTQ" %%mm0, (%1, %%eax, 2)   \n\t"
 859                         MOVNTQ" %%mm2, 8(%1, %%eax, 2)  \n\t"
 860
 861                         "addl $8, %%eax                 \n\t"
 862                         "cmpl %4, %%eax                 \n\t"
 863                         " jb 1b                         \n\t"
 864
 865                         ::"r"(src), "r"(ydst), "r"(udst), "r"(vdst), "r" (chromWidth)
 866                         : "memory", "%eax"
 867                 );
 868 #else
 869                 int i;
 870                 for(i=0; i<chromWidth; i++)
 871                 {
 872                         udst[i]         = src[4*i+0];
 873                         ydst[2*i+0]     = src[4*i+1];
 874                         vdst[i]         = src[4*i+2];
 875                         ydst[2*i+1]     = src[4*i+3];
 876                 }
 877                 ydst += lumStride;
 878                 src  += srcStride;
 879
 880                 for(i=0; i<chromWidth; i++)
 881                 {
 882                         ydst[2*i+0]     = src[4*i+1];
 883                         ydst[2*i+1]     = src[4*i+3];
 884                 }
 885 #endif
 886                 udst += chromStride;
 887                 vdst += chromStride;
 888                 ydst += lumStride;
 889                 src  += srcStride;
 890         }
 891 #ifdef HAVE_MMX
 892 asm volatile(   EMMS" \n\t"
 893                 SFENCE" \n\t"
 894                 :::"memory");
 895 #endif
 896 }
 897
 898 /**
 899  *
 900  * height should be a multiple of 2 and width should be a multiple of 2 (if this is a
 901  * problem for anyone then tell me, and ill fix it)
 902  * chrominance data is only taken from every secound line others are ignored in the C version FIXME write HQ version
 903  */
 904 static inline void RENAME(rgb24toyv12)(const uint8_t *src, uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
 905         unsigned int width, unsigned int height,
 906         unsigned int lumStride, unsigned int chromStride, unsigned int srcStride)
 907 {
 908         int y;
 909         const int chromWidth= width>>1;
 910 #ifdef HAVE_MMX
 911         for(y=0; y<height-2; y+=2)
 912         {
 913                 int i;
 914                 for(i=0; i<2; i++)
 915                 {
 916                         asm volatile(
 917                                 "movl %2, %%eax                 \n\t"
 918                                 "movq bgr2YCoeff, %%mm6         \n\t"
 919                                 "movq w1111, %%mm5              \n\t"
 920                                 "pxor %%mm7, %%mm7              \n\t"
 921                                 "leal (%%eax, %%eax, 2), %%ebx  \n\t"
 922                                 ".balign 16                     \n\t"
 923                                 "1:                             \n\t"
 924                                 PREFETCH" 64(%0, %%ebx)         \n\t"
 925                                 "movd (%0, %%ebx), %%mm0        \n\t"
 926                                 "movd 3(%0, %%ebx), %%mm1       \n\t"
 927                                 "punpcklbw %%mm7, %%mm0         \n\t"
 928                                 "punpcklbw %%mm7, %%mm1         \n\t"
 929                                 "movd 6(%0, %%ebx), %%mm2       \n\t"
 930                                 "movd 9(%0, %%ebx), %%mm3       \n\t"
 931                                 "punpcklbw %%mm7, %%mm2         \n\t"
 932                                 "punpcklbw %%mm7, %%mm3         \n\t"
 933                                 "pmaddwd %%mm6, %%mm0           \n\t"
 934                                 "pmaddwd %%mm6, %%mm1           \n\t"
 935                                 "pmaddwd %%mm6, %%mm2           \n\t"
 936                                 "pmaddwd %%mm6, %%mm3           \n\t"
 937 #ifndef FAST_BGR2YV12
 938                                 "psrad $8, %%mm0                \n\t"
 939                                 "psrad $8, %%mm1                \n\t"
 940                                 "psrad $8, %%mm2                \n\t"
 941                                 "psrad $8, %%mm3                \n\t"
 942 #endif
 943                                 "packssdw %%mm1, %%mm0          \n\t"
 944                                 "packssdw %%mm3, %%mm2          \n\t"
 945                                 "pmaddwd %%mm5, %%mm0           \n\t"
 946                                 "pmaddwd %%mm5, %%mm2           \n\t"
 947                                 "packssdw %%mm2, %%mm0          \n\t"
 948                                 "psraw $7, %%mm0                \n\t"
 949
 950                                 "movd 12(%0, %%ebx), %%mm4      \n\t"
 951                                 "movd 15(%0, %%ebx), %%mm1      \n\t"
 952                                 "punpcklbw %%mm7, %%mm4         \n\t"
 953                                 "punpcklbw %%mm7, %%mm1         \n\t"
 954                                 "movd 18(%0, %%ebx), %%mm2      \n\t"
 955                                 "movd 21(%0, %%ebx), %%mm3      \n\t"
 956                                 "punpcklbw %%mm7, %%mm2         \n\t"
 957                                 "punpcklbw %%mm7, %%mm3         \n\t"
 958                                 "pmaddwd %%mm6, %%mm4           \n\t"
 959                                 "pmaddwd %%mm6, %%mm1           \n\t"
 960                                 "pmaddwd %%mm6, %%mm2           \n\t"
 961                                 "pmaddwd %%mm6, %%mm3           \n\t"
 962 #ifndef FAST_BGR2YV12
 963                                 "psrad $8, %%mm4                \n\t"
 964                                 "psrad $8, %%mm1                \n\t"
 965                                 "psrad $8, %%mm2                \n\t"
 966                                 "psrad $8, %%mm3                \n\t"
 967 #endif
 968                                 "packssdw %%mm1, %%mm4          \n\t"
 969                                 "packssdw %%mm3, %%mm2          \n\t"
 970                                 "pmaddwd %%mm5, %%mm4           \n\t"
 971                                 "pmaddwd %%mm5, %%mm2           \n\t"
 972                                 "addl $24, %%ebx                \n\t"
 973                                 "packssdw %%mm2, %%mm4          \n\t"
 974                                 "psraw $7, %%mm4                \n\t"
 975
 976                                 "packuswb %%mm4, %%mm0          \n\t"
 977                                 "paddusb bgr2YOffset, %%mm0     \n\t"
 978
 979                                 MOVNTQ" %%mm0, (%1, %%eax)      \n\t"
 980                                 "addl $8, %%eax                 \n\t"
 981                                 " js 1b                         \n\t"
 982                                 : : "r" (src+width*3), "r" (ydst+width), "g" (-width)
 983                                 : "%eax", "%ebx"
 984                         );
 985                         ydst += lumStride;
 986                         src  += srcStride;
 987                 }
 988                 src -= srcStride*2;
 989                 asm volatile(
 990                         "movl %4, %%eax                 \n\t"
 991                         "movq w1111, %%mm5              \n\t"
 992                         "movq bgr2UCoeff, %%mm6         \n\t"
 993                         "pxor %%mm7, %%mm7              \n\t"
 994                         "leal (%%eax, %%eax, 2), %%ebx  \n\t"
 995                         "addl %%ebx, %%ebx              \n\t"
 996                         ".balign 16                     \n\t"
 997                         "1:                             \n\t"
 998                         PREFETCH" 64(%0, %%ebx)         \n\t"
 999                         PREFETCH" 64(%1, %%ebx)         \n\t"
1000 #if defined (HAVE_MMX2) || defined (HAVE_3DNOW)
1001                         "movq (%0, %%ebx), %%mm0        \n\t"
1002                         "movq (%1, %%ebx), %%mm1        \n\t"
1003                         "movq 6(%0, %%ebx), %%mm2       \n\t"
1004                         "movq 6(%1, %%ebx), %%mm3       \n\t"
1005                         PAVGB" %%mm1, %%mm0             \n\t"
1006                         PAVGB" %%mm3, %%mm2             \n\t"
1007                         "movq %%mm0, %%mm1              \n\t"
1008                         "movq %%mm2, %%mm3              \n\t"
1009                         "psrlq $24, %%mm0               \n\t"
1010                         "psrlq $24, %%mm2               \n\t"
1011                         PAVGB" %%mm1, %%mm0             \n\t"
1012                         PAVGB" %%mm3, %%mm2             \n\t"
1013                         "punpcklbw %%mm7, %%mm0         \n\t"
1014                         "punpcklbw %%mm7, %%mm2         \n\t"
1015 #else
1016                         "movd (%0, %%ebx), %%mm0        \n\t"
1017                         "movd (%1, %%ebx), %%mm1        \n\t"
1018                         "movd 3(%0, %%ebx), %%mm2       \n\t"
1019                         "movd 3(%1, %%ebx), %%mm3       \n\t"
1020                         "punpcklbw %%mm7, %%mm0         \n\t"
1021                         "punpcklbw %%mm7, %%mm1         \n\t"
1022                         "punpcklbw %%mm7, %%mm2         \n\t"
1023                         "punpcklbw %%mm7, %%mm3         \n\t"
1024                         "paddw %%mm1, %%mm0             \n\t"
1025                         "paddw %%mm3, %%mm2             \n\t"
1026                         "paddw %%mm2, %%mm0             \n\t"
1027                         "movd 6(%0, %%ebx), %%mm4       \n\t"
1028                         "movd 6(%1, %%ebx), %%mm1       \n\t"
1029                         "movd 9(%0, %%ebx), %%mm2       \n\t"
1030                         "movd 9(%1, %%ebx), %%mm3       \n\t"
1031                         "punpcklbw %%mm7, %%mm4         \n\t"
1032                         "punpcklbw %%mm7, %%mm1         \n\t"
1033                         "punpcklbw %%mm7, %%mm2         \n\t"
1034                         "punpcklbw %%mm7, %%mm3         \n\t"
1035                         "paddw %%mm1, %%mm4             \n\t"
1036                         "paddw %%mm3, %%mm2             \n\t"
1037                         "paddw %%mm4, %%mm2             \n\t"
1038                         "psrlw $2, %%mm0                \n\t"
1039                         "psrlw $2, %%mm2                \n\t"
1040 #endif
1041                         "movq bgr2VCoeff, %%mm1         \n\t"
1042                         "movq bgr2VCoeff, %%mm3         \n\t"
1043
1044                         "pmaddwd %%mm0, %%mm1           \n\t"
1045                         "pmaddwd %%mm2, %%mm3           \n\t"
1046                         "pmaddwd %%mm6, %%mm0           \n\t"
1047                         "pmaddwd %%mm6, %%mm2           \n\t"
1048 #ifndef FAST_BGR2YV12
1049                         "psrad $8, %%mm0                \n\t"
1050                         "psrad $8, %%mm1                \n\t"
1051                         "psrad $8, %%mm2                \n\t"
1052                         "psrad $8, %%mm3                \n\t"
1053 #endif
1054                         "packssdw %%mm2, %%mm0          \n\t"
1055                         "packssdw %%mm3, %%mm1          \n\t"
1056                         "pmaddwd %%mm5, %%mm0           \n\t"
1057                         "pmaddwd %%mm5, %%mm1           \n\t"
1058                         "packssdw %%mm1, %%mm0          \n\t" // V1 V0 U1 U0
1059                         "psraw $7, %%mm0                \n\t"
1060
1061 #if defined (HAVE_MMX2) || defined (HAVE_3DNOW)
1062                         "movq 12(%0, %%ebx), %%mm4      \n\t"
1063                         "movq 12(%1, %%ebx), %%mm1      \n\t"
1064                         "movq 18(%0, %%ebx), %%mm2      \n\t"
1065                         "movq 18(%1, %%ebx), %%mm3      \n\t"
1066                         PAVGB" %%mm1, %%mm4             \n\t"
1067                         PAVGB" %%mm3, %%mm2             \n\t"
1068                         "movq %%mm4, %%mm1              \n\t"
1069                         "movq %%mm2, %%mm3              \n\t"
1070                         "psrlq $24, %%mm4               \n\t"
1071                         "psrlq $24, %%mm2               \n\t"
1072                         PAVGB" %%mm1, %%mm4             \n\t"
1073                         PAVGB" %%mm3, %%mm2             \n\t"
1074                         "punpcklbw %%mm7, %%mm4         \n\t"
1075                         "punpcklbw %%mm7, %%mm2         \n\t"
1076 #else
1077                         "movd 12(%0, %%ebx), %%mm4      \n\t"
1078                         "movd 12(%1, %%ebx), %%mm1      \n\t"
1079                         "movd 15(%0, %%ebx), %%mm2      \n\t"
1080                         "movd 15(%1, %%ebx), %%mm3      \n\t"
1081                         "punpcklbw %%mm7, %%mm4         \n\t"
1082                         "punpcklbw %%mm7, %%mm1         \n\t"
1083                         "punpcklbw %%mm7, %%mm2         \n\t"
1084                         "punpcklbw %%mm7, %%mm3         \n\t"
1085                         "paddw %%mm1, %%mm4             \n\t"
1086                         "paddw %%mm3, %%mm2             \n\t"
1087                         "paddw %%mm2, %%mm4             \n\t"
1088                         "movd 18(%0, %%ebx), %%mm5      \n\t"
1089                         "movd 18(%1, %%ebx), %%mm1      \n\t"
1090                         "movd 21(%0, %%ebx), %%mm2      \n\t"
1091                         "movd 21(%1, %%ebx), %%mm3      \n\t"
1092                         "punpcklbw %%mm7, %%mm5         \n\t"
1093                         "punpcklbw %%mm7, %%mm1         \n\t"
1094                         "punpcklbw %%mm7, %%mm2         \n\t"
1095                         "punpcklbw %%mm7, %%mm3         \n\t"
1096                         "paddw %%mm1, %%mm5             \n\t"
1097                         "paddw %%mm3, %%mm2             \n\t"
1098                         "paddw %%mm5, %%mm2             \n\t"
1099                         "movq w1111, %%mm5              \n\t"
1100                         "psrlw $2, %%mm4                \n\t"
1101                         "psrlw $2, %%mm2                \n\t"
1102 #endif
1103                         "movq bgr2VCoeff, %%mm1         \n\t"
1104                         "movq bgr2VCoeff, %%mm3         \n\t"
1105
1106                         "pmaddwd %%mm4, %%mm1           \n\t"
1107                         "pmaddwd %%mm2, %%mm3           \n\t"
1108                         "pmaddwd %%mm6, %%mm4           \n\t"
1109                         "pmaddwd %%mm6, %%mm2           \n\t"
1110 #ifndef FAST_BGR2YV12
1111                         "psrad $8, %%mm4                \n\t"
1112                         "psrad $8, %%mm1                \n\t"
1113                         "psrad $8, %%mm2                \n\t"
1114                         "psrad $8, %%mm3                \n\t"
1115 #endif
1116                         "packssdw %%mm2, %%mm4          \n\t"
1117                         "packssdw %%mm3, %%mm1          \n\t"
1118                         "pmaddwd %%mm5, %%mm4           \n\t"
1119                         "pmaddwd %%mm5, %%mm1           \n\t"
1120                         "addl $24, %%ebx                \n\t"
1121                         "packssdw %%mm1, %%mm4          \n\t" // V3 V2 U3 U2
1122                         "psraw $7, %%mm4                \n\t"
1123
1124                         "movq %%mm0, %%mm1              \n\t"
1125                         "punpckldq %%mm4, %%mm0         \n\t"
1126                         "punpckhdq %%mm4, %%mm1         \n\t"
1127                         "packsswb %%mm1, %%mm0          \n\t"
1128                         "paddb bgr2UVOffset, %%mm0      \n\t"
1129
1130                         "movd %%mm0, (%2, %%eax)        \n\t"
1131                         "punpckhdq %%mm0, %%mm0         \n\t"
1132                         "movd %%mm0, (%3, %%eax)        \n\t"
1133                         "addl $4, %%eax                 \n\t"
1134                         " js 1b                         \n\t"
1135                         : : "r" (src+width*6), "r" (src+srcStride+width*6), "r" (udst+width), "r" (vdst+width), "g" (-width)
1136                         : "%eax", "%ebx"
1137                 );
1138
1139                 udst += chromStride;
1140                 vdst += chromStride;
1141                 src  += srcStride*2;
1142         }
1143
1144         asm volatile(   EMMS" \n\t"
1145                         SFENCE" \n\t"
1146                         :::"memory");
1147 #else
1148         y=0;
1149 #endif
1150         for(; y<height; y+=2)
1151         {
1152                 int i;
1153                 for(i=0; i<chromWidth; i++)
1154                 {
1155                         unsigned int b= src[6*i+0];
1156                         unsigned int g= src[6*i+1];
1157                         unsigned int r= src[6*i+2];
1158
1159                         unsigned int Y  =  ((RY*r + GY*g + BY*b)>>RGB2YUV_SHIFT) + 16;
1160                         unsigned int V  =  ((RV*r + GV*g + BV*b)>>RGB2YUV_SHIFT) + 128;
1161                         unsigned int U  =  ((RU*r + GU*g + BU*b)>>RGB2YUV_SHIFT) + 128;
1162
1163                         udst[i]         = U;
1164                         vdst[i]         = V;
1165                         ydst[2*i]       = Y;
1166
1167                         b= src[6*i+3];
1168                         g= src[6*i+4];
1169                         r= src[6*i+5];
1170
1171                         Y  =  ((RY*r + GY*g + BY*b)>>RGB2YUV_SHIFT) + 16;
1172                         ydst[2*i+1]     = Y;
1173                 }
1174                 ydst += lumStride;
1175                 src  += srcStride;
1176
1177                 for(i=0; i<chromWidth; i++)
1178                 {
1179                         unsigned int b= src[6*i+0];
1180                         unsigned int g= src[6*i+1];
1181                         unsigned int r= src[6*i+2];
1182
1183                         unsigned int Y  =  ((RY*r + GY*g + BY*b)>>RGB2YUV_SHIFT) + 16;
1184
1185                         ydst[2*i]       = Y;
1186
1187                         b= src[6*i+3];
1188                         g= src[6*i+4];
1189                         r= src[6*i+5];
1190
1191                         Y  =  ((RY*r + GY*g + BY*b)>>RGB2YUV_SHIFT) + 16;
1192                         ydst[2*i+1]     = Y;
1193                 }
1194                 udst += chromStride;
1195                 vdst += chromStride;
1196                 ydst += lumStride;
1197                 src  += srcStride;
1198         }
1199 }