git.sesse.net Git - x264/blob - common/pixel.c

   1 /*****************************************************************************
   2  * pixel.c: h264 encoder
   3  *****************************************************************************
   4  * Copyright (C) 2003-2008 x264 project
   5  *
   6  * Authors: Loren Merritt <lorenm@u.washington.edu>
   7  *          Laurent Aimar <fenrir@via.ecp.fr>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02111, USA.
  22  *****************************************************************************/
  23
  24 #include "common.h"
  25
  26 #ifdef HAVE_MMX
  27 #   include "x86/pixel.h"
  28 #endif
  29 #ifdef ARCH_PPC
  30 #   include "ppc/pixel.h"
  31 #endif
  32 #ifdef ARCH_UltraSparc
  33 #   include "sparc/pixel.h"
  34 #endif
  35
  36
  37 /****************************************************************************
  38  * pixel_sad_WxH
  39  ****************************************************************************/
  40 #define PIXEL_SAD_C( name, lx, ly ) \
  41 static int name( uint8_t *pix1, int i_stride_pix1,  \
  42                  uint8_t *pix2, int i_stride_pix2 ) \
  43 {                                                   \
  44     int i_sum = 0;                                  \
  45     int x, y;                                       \
  46     for( y = 0; y < ly; y++ )                       \
  47     {                                               \
  48         for( x = 0; x < lx; x++ )                   \
  49         {                                           \
  50             i_sum += abs( pix1[x] - pix2[x] );      \
  51         }                                           \
  52         pix1 += i_stride_pix1;                      \
  53         pix2 += i_stride_pix2;                      \
  54     }                                               \
  55     return i_sum;                                   \
  56 }
  57
  58
  59 PIXEL_SAD_C( x264_pixel_sad_16x16, 16, 16 )
  60 PIXEL_SAD_C( x264_pixel_sad_16x8,  16,  8 )
  61 PIXEL_SAD_C( x264_pixel_sad_8x16,   8, 16 )
  62 PIXEL_SAD_C( x264_pixel_sad_8x8,    8,  8 )
  63 PIXEL_SAD_C( x264_pixel_sad_8x4,    8,  4 )
  64 PIXEL_SAD_C( x264_pixel_sad_4x8,    4,  8 )
  65 PIXEL_SAD_C( x264_pixel_sad_4x4,    4,  4 )
  66
  67
  68 /****************************************************************************
  69  * pixel_ssd_WxH
  70  ****************************************************************************/
  71 #define PIXEL_SSD_C( name, lx, ly ) \
  72 static int name( uint8_t *pix1, int i_stride_pix1,  \
  73                  uint8_t *pix2, int i_stride_pix2 ) \
  74 {                                                   \
  75     int i_sum = 0;                                  \
  76     int x, y;                                       \
  77     for( y = 0; y < ly; y++ )                       \
  78     {                                               \
  79         for( x = 0; x < lx; x++ )                   \
  80         {                                           \
  81             int d = pix1[x] - pix2[x];              \
  82             i_sum += d*d;                           \
  83         }                                           \
  84         pix1 += i_stride_pix1;                      \
  85         pix2 += i_stride_pix2;                      \
  86     }                                               \
  87     return i_sum;                                   \
  88 }
  89
  90 PIXEL_SSD_C( x264_pixel_ssd_16x16, 16, 16 )
  91 PIXEL_SSD_C( x264_pixel_ssd_16x8,  16,  8 )
  92 PIXEL_SSD_C( x264_pixel_ssd_8x16,   8, 16 )
  93 PIXEL_SSD_C( x264_pixel_ssd_8x8,    8,  8 )
  94 PIXEL_SSD_C( x264_pixel_ssd_8x4,    8,  4 )
  95 PIXEL_SSD_C( x264_pixel_ssd_4x8,    4,  8 )
  96 PIXEL_SSD_C( x264_pixel_ssd_4x4,    4,  4 )
  97
  98 int64_t x264_pixel_ssd_wxh( x264_pixel_function_t *pf, uint8_t *pix1, int i_pix1, uint8_t *pix2, int i_pix2, int i_width, int i_height )
  99 {
 100     int64_t i_ssd = 0;
 101     int x, y;
 102     int align = !(((long)pix1 | (long)pix2 | i_pix1 | i_pix2) & 15);
 103
 104 #define SSD(size) i_ssd += pf->ssd[size]( pix1 + y*i_pix1 + x, i_pix1, \
 105                                           pix2 + y*i_pix2 + x, i_pix2 );
 106     for( y = 0; y < i_height-15; y += 16 )
 107     {
 108         x = 0;
 109         if( align )
 110             for( ; x < i_width-15; x += 16 )
 111                 SSD(PIXEL_16x16);
 112         for( ; x < i_width-7; x += 8 )
 113             SSD(PIXEL_8x16);
 114     }
 115     if( y < i_height-7 )
 116         for( x = 0; x < i_width-7; x += 8 )
 117             SSD(PIXEL_8x8);
 118 #undef SSD
 119
 120 #define SSD1 { int d = pix1[y*i_pix1+x] - pix2[y*i_pix2+x]; i_ssd += d*d; }
 121     if( i_width % 8 != 0 )
 122     {
 123         for( y = 0; y < (i_height & ~7); y++ )
 124             for( x = i_width & ~7; x < i_width; x++ )
 125                 SSD1;
 126     }
 127     if( i_height % 8 != 0 )
 128     {
 129         for( y = i_height & ~7; y < i_height; y++ )
 130             for( x = 0; x < i_width; x++ )
 131                 SSD1;
 132     }
 133 #undef SSD1
 134
 135     return i_ssd;
 136 }
 137
 138
 139 static inline void pixel_sub_wxh( int16_t *diff, int i_size,
 140                                   uint8_t *pix1, int i_pix1, uint8_t *pix2, int i_pix2 )
 141 {
 142     int y, x;
 143     for( y = 0; y < i_size; y++ )
 144     {
 145         for( x = 0; x < i_size; x++ )
 146         {
 147             diff[x + y*i_size] = pix1[x] - pix2[x];
 148         }
 149         pix1 += i_pix1;
 150         pix2 += i_pix2;
 151     }
 152 }
 153
 154
 155 /****************************************************************************
 156  * pixel_satd_WxH: sum of 4x4 Hadamard transformed differences
 157  ****************************************************************************/
 158 static int pixel_satd_wxh( uint8_t *pix1, int i_pix1, uint8_t *pix2, int i_pix2, int i_width, int i_height )
 159 {
 160     int16_t tmp[4][4];
 161     int16_t diff[4][4];
 162     int x, y;
 163     int i_satd = 0;
 164
 165     for( y = 0; y < i_height; y += 4 )
 166     {
 167         for( x = 0; x < i_width; x += 4 )
 168         {
 169             int d;
 170
 171             pixel_sub_wxh( (int16_t*)diff, 4, &pix1[x], i_pix1, &pix2[x], i_pix2 );
 172
 173             for( d = 0; d < 4; d++ )
 174             {
 175                 int s01, s23;
 176                 int d01, d23;
 177
 178                 s01 = diff[d][0] + diff[d][1]; s23 = diff[d][2] + diff[d][3];
 179                 d01 = diff[d][0] - diff[d][1]; d23 = diff[d][2] - diff[d][3];
 180
 181                 tmp[d][0] = s01 + s23;
 182                 tmp[d][1] = s01 - s23;
 183                 tmp[d][2] = d01 - d23;
 184                 tmp[d][3] = d01 + d23;
 185             }
 186             for( d = 0; d < 4; d++ )
 187             {
 188                 int s01, s23;
 189                 int d01, d23;
 190
 191                 s01 = tmp[0][d] + tmp[1][d]; s23 = tmp[2][d] + tmp[3][d];
 192                 d01 = tmp[0][d] - tmp[1][d]; d23 = tmp[2][d] - tmp[3][d];
 193
 194                 i_satd += abs( s01 + s23 ) + abs( s01 - s23 ) + abs( d01 - d23 ) + abs( d01 + d23 );
 195             }
 196
 197         }
 198         pix1 += 4 * i_pix1;
 199         pix2 += 4 * i_pix2;
 200     }
 201
 202     return i_satd / 2;
 203 }
 204 #define PIXEL_SATD_C( name, width, height ) \
 205 static int name( uint8_t *pix1, int i_stride_pix1, \
 206                  uint8_t *pix2, int i_stride_pix2 ) \
 207 { \
 208     return pixel_satd_wxh( pix1, i_stride_pix1, pix2, i_stride_pix2, width, height ); \
 209 }
 210 PIXEL_SATD_C( x264_pixel_satd_16x16, 16, 16 )
 211 PIXEL_SATD_C( x264_pixel_satd_16x8,  16, 8 )
 212 PIXEL_SATD_C( x264_pixel_satd_8x16,  8, 16 )
 213 PIXEL_SATD_C( x264_pixel_satd_8x8,   8, 8 )
 214 PIXEL_SATD_C( x264_pixel_satd_8x4,   8, 4 )
 215 PIXEL_SATD_C( x264_pixel_satd_4x8,   4, 8 )
 216 PIXEL_SATD_C( x264_pixel_satd_4x4,   4, 4 )
 217
 218
 219 /****************************************************************************
 220  * pixel_sa8d_WxH: sum of 8x8 Hadamard transformed differences
 221  ****************************************************************************/
 222 #define SA8D_1D {\
 223     const int a0 = SRC(0) + SRC(4);\
 224     const int a4 = SRC(0) - SRC(4);\
 225     const int a1 = SRC(1) + SRC(5);\
 226     const int a5 = SRC(1) - SRC(5);\
 227     const int a2 = SRC(2) + SRC(6);\
 228     const int a6 = SRC(2) - SRC(6);\
 229     const int a3 = SRC(3) + SRC(7);\
 230     const int a7 = SRC(3) - SRC(7);\
 231     const int b0 = a0 + a2;\
 232     const int b2 = a0 - a2;\
 233     const int b1 = a1 + a3;\
 234     const int b3 = a1 - a3;\
 235     const int b4 = a4 + a6;\
 236     const int b6 = a4 - a6;\
 237     const int b5 = a5 + a7;\
 238     const int b7 = a5 - a7;\
 239     DST(0, b0 + b1);\
 240     DST(1, b0 - b1);\
 241     DST(2, b2 + b3);\
 242     DST(3, b2 - b3);\
 243     DST(4, b4 + b5);\
 244     DST(5, b4 - b5);\
 245     DST(6, b6 + b7);\
 246     DST(7, b6 - b7);\
 247 }
 248
 249 static inline int pixel_sa8d_wxh( uint8_t *pix1, int i_pix1, uint8_t *pix2, int i_pix2,
 250                                   int i_width, int i_height )
 251 {
 252     int16_t diff[8][8];
 253     int i_satd = 0;
 254     int x, y;
 255
 256     for( y = 0; y < i_height; y += 8 )
 257     {
 258         for( x = 0; x < i_width; x += 8 )
 259         {
 260             int i;
 261             pixel_sub_wxh( (int16_t*)diff, 8, pix1+x, i_pix1, pix2+x, i_pix2 );
 262
 263 #define SRC(x)     diff[i][x]
 264 #define DST(x,rhs) diff[i][x] = (rhs)
 265             for( i = 0; i < 8; i++ )
 266                 SA8D_1D
 267 #undef SRC
 268 #undef DST
 269
 270 #define SRC(x)     diff[x][i]
 271 #define DST(x,rhs) i_satd += abs(rhs)
 272             for( i = 0; i < 8; i++ )
 273                 SA8D_1D
 274 #undef SRC
 275 #undef DST
 276         }
 277         pix1 += 8 * i_pix1;
 278         pix2 += 8 * i_pix2;
 279     }
 280
 281     return i_satd;
 282 }
 283
 284 #define PIXEL_SA8D_C( width, height ) \
 285 static int x264_pixel_sa8d_##width##x##height( uint8_t *pix1, int i_stride_pix1, \
 286                                                uint8_t *pix2, int i_stride_pix2 ) \
 287 { \
 288     return ( pixel_sa8d_wxh( pix1, i_stride_pix1, pix2, i_stride_pix2, width, height ) + 2 ) >> 2; \
 289 }
 290 PIXEL_SA8D_C( 16, 16 )
 291 PIXEL_SA8D_C( 16, 8 )
 292 PIXEL_SA8D_C( 8, 16 )
 293 PIXEL_SA8D_C( 8, 8 )
 294
 295 /****************************************************************************
 296  * pixel_sad_x4
 297  ****************************************************************************/
 298 #define SAD_X( size ) \
 299 static void x264_pixel_sad_x3_##size( uint8_t *fenc, uint8_t *pix0, uint8_t *pix1, uint8_t *pix2, int i_stride, int scores[3] )\
 300 {\
 301     scores[0] = x264_pixel_sad_##size( fenc, FENC_STRIDE, pix0, i_stride );\
 302     scores[1] = x264_pixel_sad_##size( fenc, FENC_STRIDE, pix1, i_stride );\
 303     scores[2] = x264_pixel_sad_##size( fenc, FENC_STRIDE, pix2, i_stride );\
 304 }\
 305 static void x264_pixel_sad_x4_##size( uint8_t *fenc, uint8_t *pix0, uint8_t *pix1, uint8_t *pix2, uint8_t *pix3, int i_stride, int scores[4] )\
 306 {\
 307     scores[0] = x264_pixel_sad_##size( fenc, FENC_STRIDE, pix0, i_stride );\
 308     scores[1] = x264_pixel_sad_##size( fenc, FENC_STRIDE, pix1, i_stride );\
 309     scores[2] = x264_pixel_sad_##size( fenc, FENC_STRIDE, pix2, i_stride );\
 310     scores[3] = x264_pixel_sad_##size( fenc, FENC_STRIDE, pix3, i_stride );\
 311 }
 312
 313 SAD_X( 16x16 )
 314 SAD_X( 16x8 )
 315 SAD_X( 8x16 )
 316 SAD_X( 8x8 )
 317 SAD_X( 8x4 )
 318 SAD_X( 4x8 )
 319 SAD_X( 4x4 )
 320
 321 #ifdef ARCH_UltraSparc
 322 SAD_X( 16x16_vis )
 323 SAD_X( 16x8_vis )
 324 SAD_X( 8x16_vis )
 325 SAD_X( 8x8_vis )
 326 #endif
 327
 328 /****************************************************************************
 329  * pixel_satd_x4
 330  * no faster than single satd, but needed for satd to be a drop-in replacement for sad
 331  ****************************************************************************/
 332
 333 #define SATD_X( size, cpu ) \
 334 static void x264_pixel_satd_x3_##size##cpu( uint8_t *fenc, uint8_t *pix0, uint8_t *pix1, uint8_t *pix2, int i_stride, int scores[3] )\
 335 {\
 336     scores[0] = x264_pixel_satd_##size##cpu( fenc, FENC_STRIDE, pix0, i_stride );\
 337     scores[1] = x264_pixel_satd_##size##cpu( fenc, FENC_STRIDE, pix1, i_stride );\
 338     scores[2] = x264_pixel_satd_##size##cpu( fenc, FENC_STRIDE, pix2, i_stride );\
 339 }\
 340 static void x264_pixel_satd_x4_##size##cpu( uint8_t *fenc, uint8_t *pix0, uint8_t *pix1, uint8_t *pix2, uint8_t *pix3, int i_stride, int scores[4] )\
 341 {\
 342     scores[0] = x264_pixel_satd_##size##cpu( fenc, FENC_STRIDE, pix0, i_stride );\
 343     scores[1] = x264_pixel_satd_##size##cpu( fenc, FENC_STRIDE, pix1, i_stride );\
 344     scores[2] = x264_pixel_satd_##size##cpu( fenc, FENC_STRIDE, pix2, i_stride );\
 345     scores[3] = x264_pixel_satd_##size##cpu( fenc, FENC_STRIDE, pix3, i_stride );\
 346 }
 347 #define SATD_X_DECL5( cpu )\
 348 SATD_X( 16x16, cpu )\
 349 SATD_X( 16x8, cpu )\
 350 SATD_X( 8x16, cpu )\
 351 SATD_X( 8x8, cpu )\
 352 SATD_X( 8x4, cpu )
 353 #define SATD_X_DECL7( cpu )\
 354 SATD_X_DECL5( cpu )\
 355 SATD_X( 4x8, cpu )\
 356 SATD_X( 4x4, cpu )
 357
 358 SATD_X_DECL7()
 359 #ifdef HAVE_MMX
 360 SATD_X_DECL7( _mmxext )
 361 SATD_X_DECL5( _sse2 )
 362 SATD_X_DECL7( _ssse3 )
 363 SATD_X_DECL5( _ssse3_phadd )
 364 #endif
 365
 366 /****************************************************************************
 367  * structural similarity metric
 368  ****************************************************************************/
 369 static void ssim_4x4x2_core( const uint8_t *pix1, int stride1,
 370                              const uint8_t *pix2, int stride2,
 371                              int sums[2][4])
 372 {
 373     int x, y, z;
 374     for(z=0; z<2; z++)
 375     {
 376         uint32_t s1=0, s2=0, ss=0, s12=0;
 377         for(y=0; y<4; y++)
 378             for(x=0; x<4; x++)
 379             {
 380                 int a = pix1[x+y*stride1];
 381                 int b = pix2[x+y*stride2];
 382                 s1  += a;
 383                 s2  += b;
 384                 ss  += a*a;
 385                 ss  += b*b;
 386                 s12 += a*b;
 387             }
 388         sums[z][0] = s1;
 389         sums[z][1] = s2;
 390         sums[z][2] = ss;
 391         sums[z][3] = s12;
 392         pix1 += 4;
 393         pix2 += 4;
 394     }
 395 }
 396
 397 static float ssim_end1( int s1, int s2, int ss, int s12 )
 398 {
 399     static const int ssim_c1 = (int)(.01*.01*255*255*64 + .5);
 400     static const int ssim_c2 = (int)(.03*.03*255*255*64*63 + .5);
 401     int vars = ss*64 - s1*s1 - s2*s2;
 402     int covar = s12*64 - s1*s2;
 403     return (float)(2*s1*s2 + ssim_c1) * (float)(2*covar + ssim_c2)\
 404            / ((float)(s1*s1 + s2*s2 + ssim_c1) * (float)(vars + ssim_c2));
 405 }
 406
 407 static float ssim_end4( int sum0[5][4], int sum1[5][4], int width )
 408 {
 409     int i;
 410     float ssim = 0.0;
 411     for( i = 0; i < width; i++ )
 412         ssim += ssim_end1( sum0[i][0] + sum0[i+1][0] + sum1[i][0] + sum1[i+1][0],
 413                            sum0[i][1] + sum0[i+1][1] + sum1[i][1] + sum1[i+1][1],
 414                            sum0[i][2] + sum0[i+1][2] + sum1[i][2] + sum1[i+1][2],
 415                            sum0[i][3] + sum0[i+1][3] + sum1[i][3] + sum1[i+1][3] );
 416     return ssim;
 417 }
 418
 419 float x264_pixel_ssim_wxh( x264_pixel_function_t *pf,
 420                            uint8_t *pix1, int stride1,
 421                            uint8_t *pix2, int stride2,
 422                            int width, int height )
 423 {
 424     int x, y, z;
 425     float ssim = 0.0;
 426     int (*sum0)[4] = x264_malloc(4 * (width/4+3) * sizeof(int));
 427     int (*sum1)[4] = x264_malloc(4 * (width/4+3) * sizeof(int));
 428     width >>= 2;
 429     height >>= 2;
 430     z = 0;
 431     for( y = 1; y < height; y++ )
 432     {
 433         for( ; z <= y; z++ )
 434         {
 435             XCHG( void*, sum0, sum1 );
 436             for( x = 0; x < width; x+=2 )
 437                 pf->ssim_4x4x2_core( &pix1[4*(x+z*stride1)], stride1, &pix2[4*(x+z*stride2)], stride2, &sum0[x] );
 438         }
 439         for( x = 0; x < width-1; x += 4 )
 440             ssim += pf->ssim_end4( sum0+x, sum1+x, X264_MIN(4,width-x-1) );
 441     }
 442     x264_free(sum0);
 443     x264_free(sum1);
 444     return ssim;
 445 }
 446
 447
 448 /****************************************************************************
 449  * successive elimination
 450  ****************************************************************************/
 451 static int x264_pixel_ads4( int enc_dc[4], uint16_t *sums, int delta,
 452                             uint16_t *cost_mvx, int16_t *mvs, int width, int thresh )
 453 {
 454     int nmv=0, i;
 455     for( i=0; i<width; i++, sums++ )
 456     {
 457         int ads = abs( enc_dc[0] - sums[0] )
 458                 + abs( enc_dc[1] - sums[8] )
 459                 + abs( enc_dc[2] - sums[delta] )
 460                 + abs( enc_dc[3] - sums[delta+8] )
 461                 + cost_mvx[i];
 462         if( ads < thresh )
 463             mvs[nmv++] = i;
 464     }
 465     return nmv;
 466 }
 467
 468 static int x264_pixel_ads2( int enc_dc[2], uint16_t *sums, int delta,
 469                             uint16_t *cost_mvx, int16_t *mvs, int width, int thresh )
 470 {
 471     int nmv=0, i;
 472     for( i=0; i<width; i++, sums++ )
 473     {
 474         int ads = abs( enc_dc[0] - sums[0] )
 475                 + abs( enc_dc[1] - sums[delta] )
 476                 + cost_mvx[i];
 477         if( ads < thresh )
 478             mvs[nmv++] = i;
 479     }
 480     return nmv;
 481 }
 482
 483 static int x264_pixel_ads1( int enc_dc[1], uint16_t *sums, int delta,
 484                             uint16_t *cost_mvx, int16_t *mvs, int width, int thresh )
 485 {
 486     int nmv=0, i;
 487     for( i=0; i<width; i++, sums++ )
 488     {
 489         int ads = abs( enc_dc[0] - sums[0] )
 490                 + cost_mvx[i];
 491         if( ads < thresh )
 492             mvs[nmv++] = i;
 493     }
 494     return nmv;
 495 }
 496
 497
 498 /****************************************************************************
 499  * x264_pixel_init:
 500  ****************************************************************************/
 501 void x264_pixel_init( int cpu, x264_pixel_function_t *pixf )
 502 {
 503     memset( pixf, 0, sizeof(*pixf) );
 504
 505 #define INIT2( name, cpu ) \
 506     pixf->name[PIXEL_16x16] = x264_pixel_##name##_16x16##cpu;\
 507     pixf->name[PIXEL_16x8]  = x264_pixel_##name##_16x8##cpu;
 508 #define INIT4( name, cpu ) \
 509     INIT2( name, cpu ) \
 510     pixf->name[PIXEL_8x16]  = x264_pixel_##name##_8x16##cpu;\
 511     pixf->name[PIXEL_8x8]   = x264_pixel_##name##_8x8##cpu;
 512 #define INIT5( name, cpu ) \
 513     INIT4( name, cpu ) \
 514     pixf->name[PIXEL_8x4]   = x264_pixel_##name##_8x4##cpu;
 515 #define INIT7( name, cpu ) \
 516     INIT5( name, cpu ) \
 517     pixf->name[PIXEL_4x8]   = x264_pixel_##name##_4x8##cpu;\
 518     pixf->name[PIXEL_4x4]   = x264_pixel_##name##_4x4##cpu;
 519
 520 #define INIT_ADS( cpu ) \
 521     pixf->ads[PIXEL_16x16] = x264_pixel_ads4##cpu;\
 522     pixf->ads[PIXEL_16x8] = x264_pixel_ads2##cpu;\
 523     pixf->ads[PIXEL_8x8] = x264_pixel_ads1##cpu;
 524
 525     INIT7( sad, );
 526     INIT7( sad_x3, );
 527     INIT7( sad_x4, );
 528     INIT7( ssd, );
 529     INIT7( satd, );
 530     INIT7( satd_x3, );
 531     INIT7( satd_x4, );
 532     INIT4( sa8d, );
 533     INIT_ADS( );
 534
 535     pixf->ssim_4x4x2_core = ssim_4x4x2_core;
 536     pixf->ssim_end4 = ssim_end4;
 537
 538 #ifdef HAVE_MMX
 539     if( cpu&X264_CPU_MMX )
 540     {
 541         INIT7( ssd, _mmx );
 542     }
 543
 544     if( cpu&X264_CPU_MMXEXT )
 545     {
 546         INIT7( sad, _mmxext );
 547         INIT7( sad_x3, _mmxext );
 548         INIT7( sad_x4, _mmxext );
 549         INIT7( satd, _mmxext );
 550         INIT7( satd_x3, _mmxext );
 551         INIT7( satd_x4, _mmxext );
 552         INIT_ADS( _mmxext );
 553
 554 #ifdef ARCH_X86
 555         pixf->sa8d[PIXEL_16x16] = x264_pixel_sa8d_16x16_mmxext;
 556         pixf->sa8d[PIXEL_8x8]   = x264_pixel_sa8d_8x8_mmxext;
 557         pixf->intra_sa8d_x3_8x8 = x264_intra_sa8d_x3_8x8_mmxext;
 558         pixf->ssim_4x4x2_core  = x264_pixel_ssim_4x4x2_core_mmxext;
 559
 560         if( cpu&X264_CPU_CACHELINE_32 )
 561         {
 562             INIT5( sad, _cache32_mmxext );
 563             INIT4( sad_x3, _cache32_mmxext );
 564             INIT4( sad_x4, _cache32_mmxext );
 565         }
 566         else if( cpu&X264_CPU_CACHELINE_64 )
 567         {
 568             INIT5( sad, _cache64_mmxext );
 569             INIT4( sad_x3, _cache64_mmxext );
 570             INIT4( sad_x4, _cache64_mmxext );
 571         }
 572 #else
 573         if( cpu&X264_CPU_CACHELINE_64 )
 574         {
 575             pixf->sad[PIXEL_8x16] = x264_pixel_sad_8x16_cache64_mmxext;
 576             pixf->sad[PIXEL_8x8]  = x264_pixel_sad_8x8_cache64_mmxext;
 577             pixf->sad[PIXEL_8x4]  = x264_pixel_sad_8x4_cache64_mmxext;
 578             pixf->sad_x3[PIXEL_8x16] = x264_pixel_sad_x3_8x16_cache64_mmxext;
 579             pixf->sad_x3[PIXEL_8x8]  = x264_pixel_sad_x3_8x8_cache64_mmxext;
 580             pixf->sad_x4[PIXEL_8x16] = x264_pixel_sad_x4_8x16_cache64_mmxext;
 581             pixf->sad_x4[PIXEL_8x8]  = x264_pixel_sad_x4_8x8_cache64_mmxext;
 582         }
 583 #endif
 584         pixf->intra_satd_x3_16x16 = x264_intra_satd_x3_16x16_mmxext;
 585         pixf->intra_satd_x3_8x8c  = x264_intra_satd_x3_8x8c_mmxext;
 586         pixf->intra_satd_x3_4x4   = x264_intra_satd_x3_4x4_mmxext;
 587     }
 588
 589     if( (cpu&X264_CPU_SSE2) && !(cpu&X264_CPU_SSE2_IS_SLOW) )
 590     {
 591         INIT2( sad, _sse2 );
 592         INIT2( sad_x3, _sse2 );
 593         INIT2( sad_x4, _sse2 );
 594         INIT_ADS( _sse2 );
 595
 596 #ifdef ARCH_X86
 597         if( cpu&X264_CPU_CACHELINE_64 )
 598         {
 599             INIT2( sad, _cache64_sse2 );
 600             INIT2( sad_x3, _cache64_sse2 );
 601             INIT2( sad_x4, _cache64_sse2 );
 602         }
 603 #endif
 604     }
 605     if( cpu&X264_CPU_SSE2 )
 606     {
 607         INIT5( ssd, _sse2 );
 608         INIT5( satd, _sse2 );
 609         INIT5( satd_x3, _sse2 );
 610         INIT5( satd_x4, _sse2 );
 611         pixf->ssim_4x4x2_core  = x264_pixel_ssim_4x4x2_core_sse2;
 612         pixf->ssim_end4        = x264_pixel_ssim_end4_sse2;
 613         pixf->sa8d[PIXEL_16x16] = x264_pixel_sa8d_16x16_sse2;
 614         pixf->sa8d[PIXEL_8x8]   = x264_pixel_sa8d_8x8_sse2;
 615 #ifdef ARCH_X86_64
 616         pixf->intra_sa8d_x3_8x8 = x264_intra_sa8d_x3_8x8_sse2;
 617 #endif
 618     }
 619
 620     if( (cpu&X264_CPU_SSE3) && (cpu&X264_CPU_CACHELINE_64) )
 621     {
 622         INIT2( sad, _sse3 );
 623         INIT2( sad_x3, _sse3 );
 624         INIT2( sad_x4, _sse3 );
 625     }
 626
 627     if( cpu&X264_CPU_SSSE3 )
 628     {
 629         INIT7( satd, _ssse3 );
 630         INIT7( satd_x3, _ssse3 );
 631         INIT7( satd_x4, _ssse3 );
 632         INIT_ADS( _ssse3 );
 633         pixf->sa8d[PIXEL_16x16]= x264_pixel_sa8d_16x16_ssse3;
 634         pixf->sa8d[PIXEL_8x8]  = x264_pixel_sa8d_8x8_ssse3;
 635         pixf->intra_satd_x3_16x16 = x264_intra_satd_x3_16x16_ssse3;
 636         pixf->intra_satd_x3_8x8c  = x264_intra_satd_x3_8x8c_ssse3;
 637         pixf->intra_satd_x3_4x4   = x264_intra_satd_x3_4x4_ssse3;
 638 #ifdef ARCH_X86_64
 639         pixf->intra_sa8d_x3_8x8 = x264_intra_sa8d_x3_8x8_ssse3;
 640 #endif
 641         if( cpu&X264_CPU_CACHELINE_64 )
 642         {
 643             INIT2( sad, _cache64_ssse3 );
 644             INIT2( sad_x3, _cache64_ssse3 );
 645             INIT2( sad_x4, _cache64_ssse3 );
 646         }
 647         if( cpu&X264_CPU_PHADD_IS_FAST )
 648         {
 649             INIT5( satd, _ssse3_phadd );
 650             INIT5( satd_x3, _ssse3_phadd );
 651             INIT5( satd_x4, _ssse3_phadd );
 652         }
 653     }
 654 #endif //HAVE_MMX
 655
 656 #ifdef ARCH_PPC
 657     if( cpu&X264_CPU_ALTIVEC )
 658     {
 659         x264_pixel_altivec_init( pixf );
 660     }
 661 #endif
 662 #ifdef ARCH_UltraSparc
 663     INIT4( sad, _vis );
 664     INIT4( sad_x3, _vis );
 665     INIT4( sad_x4, _vis );
 666 #endif
 667
 668     pixf->ads[PIXEL_8x16] =
 669     pixf->ads[PIXEL_8x4] =
 670     pixf->ads[PIXEL_4x8] = pixf->ads[PIXEL_16x8];
 671     pixf->ads[PIXEL_4x4] = pixf->ads[PIXEL_8x8];
 672 }
 673