1 /*****************************************************************************
2 * pixel.c: pixel metrics
3 *****************************************************************************
4 * Copyright (C) 2003-2011 x264 project
6 * Authors: Loren Merritt <lorenm@u.washington.edu>
7 * Laurent Aimar <fenrir@via.ecp.fr>
8 * Fiona Glaser <fiona@x264.com>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
24 * This program is also available under a commercial proprietary license.
25 * For more information, contact us at licensing@x264.com.
26 *****************************************************************************/
31 # include "x86/pixel.h"
34 # include "ppc/pixel.h"
37 # include "arm/pixel.h"
40 # include "sparc/pixel.h"
44 /****************************************************************************
46 ****************************************************************************/
47 #define PIXEL_SAD_C( name, lx, ly ) \
48 static int name( pixel *pix1, int i_stride_pix1, \
49 pixel *pix2, int i_stride_pix2 ) \
52 for( int y = 0; y < ly; y++ ) \
54 for( int x = 0; x < lx; x++ ) \
56 i_sum += abs( pix1[x] - pix2[x] ); \
58 pix1 += i_stride_pix1; \
59 pix2 += i_stride_pix2; \
65 PIXEL_SAD_C( x264_pixel_sad_16x16, 16, 16 )
66 PIXEL_SAD_C( x264_pixel_sad_16x8, 16, 8 )
67 PIXEL_SAD_C( x264_pixel_sad_8x16, 8, 16 )
68 PIXEL_SAD_C( x264_pixel_sad_8x8, 8, 8 )
69 PIXEL_SAD_C( x264_pixel_sad_8x4, 8, 4 )
70 PIXEL_SAD_C( x264_pixel_sad_4x8, 4, 8 )
71 PIXEL_SAD_C( x264_pixel_sad_4x4, 4, 4 )
74 /****************************************************************************
76 ****************************************************************************/
77 #define PIXEL_SSD_C( name, lx, ly ) \
78 static int name( pixel *pix1, int i_stride_pix1, \
79 pixel *pix2, int i_stride_pix2 ) \
82 for( int y = 0; y < ly; y++ ) \
84 for( int x = 0; x < lx; x++ ) \
86 int d = pix1[x] - pix2[x]; \
89 pix1 += i_stride_pix1; \
90 pix2 += i_stride_pix2; \
95 PIXEL_SSD_C( x264_pixel_ssd_16x16, 16, 16 )
96 PIXEL_SSD_C( x264_pixel_ssd_16x8, 16, 8 )
97 PIXEL_SSD_C( x264_pixel_ssd_8x16, 8, 16 )
98 PIXEL_SSD_C( x264_pixel_ssd_8x8, 8, 8 )
99 PIXEL_SSD_C( x264_pixel_ssd_8x4, 8, 4 )
100 PIXEL_SSD_C( x264_pixel_ssd_4x8, 4, 8 )
101 PIXEL_SSD_C( x264_pixel_ssd_4x4, 4, 4 )
103 uint64_t x264_pixel_ssd_wxh( x264_pixel_function_t *pf, pixel *pix1, int i_pix1, pixel *pix2, int i_pix2, int i_width, int i_height )
107 int align = !(((intptr_t)pix1 | (intptr_t)pix2 | i_pix1 | i_pix2) & 15);
109 #define SSD(size) i_ssd += pf->ssd[size]( pix1 + y*i_pix1 + x, i_pix1, \
110 pix2 + y*i_pix2 + x, i_pix2 );
111 for( y = 0; y < i_height-15; y += 16 )
115 for( ; x < i_width-15; x += 16 )
117 for( ; x < i_width-7; x += 8 )
121 for( int x = 0; x < i_width-7; x += 8 )
125 #define SSD1 { int d = pix1[y*i_pix1+x] - pix2[y*i_pix2+x]; i_ssd += d*d; }
128 for( y = 0; y < (i_height & ~7); y++ )
129 for( int x = i_width & ~7; x < i_width; x++ )
134 for( y = i_height & ~7; y < i_height; y++ )
135 for( int x = 0; x < i_width; x++ )
143 static void pixel_ssd_nv12_core( pixel *pixuv1, int stride1, pixel *pixuv2, int stride2, int width, int height, uint64_t *ssd_u, uint64_t *ssd_v )
145 *ssd_u = 0, *ssd_v = 0;
146 for( int y = 0; y < height; y++, pixuv1+=stride1, pixuv2+=stride2 )
147 for( int x = 0; x < width; x++ )
149 int du = pixuv1[2*x] - pixuv2[2*x];
150 int dv = pixuv1[2*x+1] - pixuv2[2*x+1];
156 void x264_pixel_ssd_nv12( x264_pixel_function_t *pf, pixel *pix1, int i_pix1, pixel *pix2, int i_pix2, int i_width, int i_height, uint64_t *ssd_u, uint64_t *ssd_v )
158 pf->ssd_nv12_core( pix1, i_pix1, pix2, i_pix2, i_width&~7, i_height, ssd_u, ssd_v );
162 pixel_ssd_nv12_core( pix1+(i_width&~7), i_pix1, pix2+(i_width&~7), i_pix2, i_width&7, i_height, &tmp[0], &tmp[1] );
168 /****************************************************************************
170 ****************************************************************************/
171 #define PIXEL_VAR_C( name, w ) \
172 static uint64_t name( pixel *pix, int i_stride ) \
174 uint32_t sum = 0, sqr = 0; \
175 for( int y = 0; y < w; y++ ) \
177 for( int x = 0; x < w; x++ ) \
180 sqr += pix[x] * pix[x]; \
184 return sum + ((uint64_t)sqr << 32); \
187 PIXEL_VAR_C( x264_pixel_var_16x16, 16 )
188 PIXEL_VAR_C( x264_pixel_var_8x8, 8 )
190 /****************************************************************************
192 ****************************************************************************/
193 static int pixel_var2_8x8( pixel *pix1, int i_stride1, pixel *pix2, int i_stride2, int *ssd )
195 uint32_t var = 0, sum = 0, sqr = 0;
196 for( int y = 0; y < 8; y++ )
198 for( int x = 0; x < 8; x++ )
200 int diff = pix1[x] - pix2[x];
208 var = sqr - ((uint64_t)sum * sum >> 6);
214 typedef uint32_t sum_t;
215 typedef uint64_t sum2_t;
217 typedef uint16_t sum_t;
218 typedef uint32_t sum2_t;
220 #define BITS_PER_SUM (8 * sizeof(sum_t))
222 #define HADAMARD4(d0, d1, d2, d3, s0, s1, s2, s3) {\
223 sum2_t t0 = s0 + s1;\
224 sum2_t t1 = s0 - s1;\
225 sum2_t t2 = s2 + s3;\
226 sum2_t t3 = s2 - s3;\
233 // in: a pseudo-simd number of the form x+(y<<16)
234 // return: abs(x)+(abs(y)<<16)
235 static ALWAYS_INLINE sum2_t abs2( sum2_t a )
237 sum2_t s = ((a>>(BITS_PER_SUM-1))&(((sum2_t)1<<BITS_PER_SUM)+1))*((sum_t)-1);
241 /****************************************************************************
242 * pixel_satd_WxH: sum of 4x4 Hadamard transformed differences
243 ****************************************************************************/
245 static NOINLINE int x264_pixel_satd_4x4( pixel *pix1, int i_pix1, pixel *pix2, int i_pix2 )
248 sum2_t a0, a1, a2, a3, b0, b1;
250 for( int i = 0; i < 4; i++, pix1 += i_pix1, pix2 += i_pix2 )
252 a0 = pix1[0] - pix2[0];
253 a1 = pix1[1] - pix2[1];
254 b0 = (a0+a1) + ((a0-a1)<<BITS_PER_SUM);
255 a2 = pix1[2] - pix2[2];
256 a3 = pix1[3] - pix2[3];
257 b1 = (a2+a3) + ((a2-a3)<<BITS_PER_SUM);
261 for( int i = 0; i < 2; i++ )
263 HADAMARD4( a0, a1, a2, a3, tmp[0][i], tmp[1][i], tmp[2][i], tmp[3][i] );
264 a0 = abs2(a0) + abs2(a1) + abs2(a2) + abs2(a3);
265 sum += ((sum_t)a0) + (a0>>BITS_PER_SUM);
270 static NOINLINE int x264_pixel_satd_8x4( pixel *pix1, int i_pix1, pixel *pix2, int i_pix2 )
273 sum2_t a0, a1, a2, a3;
275 for( int i = 0; i < 4; i++, pix1 += i_pix1, pix2 += i_pix2 )
277 a0 = (pix1[0] - pix2[0]) + ((sum2_t)(pix1[4] - pix2[4]) << BITS_PER_SUM);
278 a1 = (pix1[1] - pix2[1]) + ((sum2_t)(pix1[5] - pix2[5]) << BITS_PER_SUM);
279 a2 = (pix1[2] - pix2[2]) + ((sum2_t)(pix1[6] - pix2[6]) << BITS_PER_SUM);
280 a3 = (pix1[3] - pix2[3]) + ((sum2_t)(pix1[7] - pix2[7]) << BITS_PER_SUM);
281 HADAMARD4( tmp[i][0], tmp[i][1], tmp[i][2], tmp[i][3], a0,a1,a2,a3 );
283 for( int i = 0; i < 4; i++ )
285 HADAMARD4( a0, a1, a2, a3, tmp[0][i], tmp[1][i], tmp[2][i], tmp[3][i] );
286 sum += abs2(a0) + abs2(a1) + abs2(a2) + abs2(a3);
288 return (((sum_t)sum) + (sum>>BITS_PER_SUM)) >> 1;
291 #define PIXEL_SATD_C( w, h, sub )\
292 static int x264_pixel_satd_##w##x##h( pixel *pix1, int i_pix1, pixel *pix2, int i_pix2 )\
294 int sum = sub( pix1, i_pix1, pix2, i_pix2 )\
295 + sub( pix1+4*i_pix1, i_pix1, pix2+4*i_pix2, i_pix2 );\
297 sum+= sub( pix1+8, i_pix1, pix2+8, i_pix2 )\
298 + sub( pix1+8+4*i_pix1, i_pix1, pix2+8+4*i_pix2, i_pix2 );\
300 sum+= sub( pix1+8*i_pix1, i_pix1, pix2+8*i_pix2, i_pix2 )\
301 + sub( pix1+12*i_pix1, i_pix1, pix2+12*i_pix2, i_pix2 );\
302 if( w==16 && h==16 )\
303 sum+= sub( pix1+8+8*i_pix1, i_pix1, pix2+8+8*i_pix2, i_pix2 )\
304 + sub( pix1+8+12*i_pix1, i_pix1, pix2+8+12*i_pix2, i_pix2 );\
307 PIXEL_SATD_C( 16, 16, x264_pixel_satd_8x4 )
308 PIXEL_SATD_C( 16, 8, x264_pixel_satd_8x4 )
309 PIXEL_SATD_C( 8, 16, x264_pixel_satd_8x4 )
310 PIXEL_SATD_C( 8, 8, x264_pixel_satd_8x4 )
311 PIXEL_SATD_C( 4, 8, x264_pixel_satd_4x4 )
314 static NOINLINE int sa8d_8x8( pixel *pix1, int i_pix1, pixel *pix2, int i_pix2 )
317 sum2_t a0, a1, a2, a3, a4, a5, a6, a7, b0, b1, b2, b3;
319 for( int i = 0; i < 8; i++, pix1 += i_pix1, pix2 += i_pix2 )
321 a0 = pix1[0] - pix2[0];
322 a1 = pix1[1] - pix2[1];
323 b0 = (a0+a1) + ((a0-a1)<<BITS_PER_SUM);
324 a2 = pix1[2] - pix2[2];
325 a3 = pix1[3] - pix2[3];
326 b1 = (a2+a3) + ((a2-a3)<<BITS_PER_SUM);
327 a4 = pix1[4] - pix2[4];
328 a5 = pix1[5] - pix2[5];
329 b2 = (a4+a5) + ((a4-a5)<<BITS_PER_SUM);
330 a6 = pix1[6] - pix2[6];
331 a7 = pix1[7] - pix2[7];
332 b3 = (a6+a7) + ((a6-a7)<<BITS_PER_SUM);
333 HADAMARD4( tmp[i][0], tmp[i][1], tmp[i][2], tmp[i][3], b0,b1,b2,b3 );
335 for( int i = 0; i < 4; i++ )
337 HADAMARD4( a0, a1, a2, a3, tmp[0][i], tmp[1][i], tmp[2][i], tmp[3][i] );
338 HADAMARD4( a4, a5, a6, a7, tmp[4][i], tmp[5][i], tmp[6][i], tmp[7][i] );
339 b0 = abs2(a0+a4) + abs2(a0-a4);
340 b0 += abs2(a1+a5) + abs2(a1-a5);
341 b0 += abs2(a2+a6) + abs2(a2-a6);
342 b0 += abs2(a3+a7) + abs2(a3-a7);
343 sum += (sum_t)b0 + (b0>>BITS_PER_SUM);
348 static int x264_pixel_sa8d_8x8( pixel *pix1, int i_pix1, pixel *pix2, int i_pix2 )
350 int sum = sa8d_8x8( pix1, i_pix1, pix2, i_pix2 );
354 static int x264_pixel_sa8d_16x16( pixel *pix1, int i_pix1, pixel *pix2, int i_pix2 )
356 int sum = sa8d_8x8( pix1, i_pix1, pix2, i_pix2 )
357 + sa8d_8x8( pix1+8, i_pix1, pix2+8, i_pix2 )
358 + sa8d_8x8( pix1+8*i_pix1, i_pix1, pix2+8*i_pix2, i_pix2 )
359 + sa8d_8x8( pix1+8+8*i_pix1, i_pix1, pix2+8+8*i_pix2, i_pix2 );
364 static NOINLINE uint64_t pixel_hadamard_ac( pixel *pix, int stride )
367 sum2_t a0, a1, a2, a3, dc;
368 sum2_t sum4 = 0, sum8 = 0;
369 for( int i = 0; i < 8; i++, pix+=stride )
371 sum2_t *t = tmp + (i&3) + (i&4)*4;
372 a0 = (pix[0]+pix[1]) + ((sum2_t)(pix[0]-pix[1])<<BITS_PER_SUM);
373 a1 = (pix[2]+pix[3]) + ((sum2_t)(pix[2]-pix[3])<<BITS_PER_SUM);
376 a2 = (pix[4]+pix[5]) + ((sum2_t)(pix[4]-pix[5])<<BITS_PER_SUM);
377 a3 = (pix[6]+pix[7]) + ((sum2_t)(pix[6]-pix[7])<<BITS_PER_SUM);
381 for( int i = 0; i < 8; i++ )
383 HADAMARD4( a0, a1, a2, a3, tmp[i*4+0], tmp[i*4+1], tmp[i*4+2], tmp[i*4+3] );
388 sum4 += abs2(a0) + abs2(a1) + abs2(a2) + abs2(a3);
390 for( int i = 0; i < 8; i++ )
392 HADAMARD4( a0,a1,a2,a3, tmp[i], tmp[8+i], tmp[16+i], tmp[24+i] );
393 sum8 += abs2(a0) + abs2(a1) + abs2(a2) + abs2(a3);
395 dc = (sum_t)(tmp[0] + tmp[8] + tmp[16] + tmp[24]);
396 sum4 = (sum_t)sum4 + (sum4>>BITS_PER_SUM) - dc;
397 sum8 = (sum_t)sum8 + (sum8>>BITS_PER_SUM) - dc;
398 return ((uint64_t)sum8<<32) + sum4;
401 #define HADAMARD_AC(w,h) \
402 static uint64_t x264_pixel_hadamard_ac_##w##x##h( pixel *pix, int stride )\
404 uint64_t sum = pixel_hadamard_ac( pix, stride );\
406 sum += pixel_hadamard_ac( pix+8, stride );\
408 sum += pixel_hadamard_ac( pix+8*stride, stride );\
409 if( w==16 && h==16 )\
410 sum += pixel_hadamard_ac( pix+8*stride+8, stride );\
411 return ((sum>>34)<<32) + ((uint32_t)sum>>1);\
413 HADAMARD_AC( 16, 16 )
419 /****************************************************************************
421 ****************************************************************************/
422 #define SAD_X( size ) \
423 static void x264_pixel_sad_x3_##size( pixel *fenc, pixel *pix0, pixel *pix1, pixel *pix2, int i_stride, int scores[3] )\
425 scores[0] = x264_pixel_sad_##size( fenc, FENC_STRIDE, pix0, i_stride );\
426 scores[1] = x264_pixel_sad_##size( fenc, FENC_STRIDE, pix1, i_stride );\
427 scores[2] = x264_pixel_sad_##size( fenc, FENC_STRIDE, pix2, i_stride );\
429 static void x264_pixel_sad_x4_##size( pixel *fenc, pixel *pix0, pixel *pix1, pixel *pix2, pixel *pix3, int i_stride, int scores[4] )\
431 scores[0] = x264_pixel_sad_##size( fenc, FENC_STRIDE, pix0, i_stride );\
432 scores[1] = x264_pixel_sad_##size( fenc, FENC_STRIDE, pix1, i_stride );\
433 scores[2] = x264_pixel_sad_##size( fenc, FENC_STRIDE, pix2, i_stride );\
434 scores[3] = x264_pixel_sad_##size( fenc, FENC_STRIDE, pix3, i_stride );\
452 #endif // !HIGH_BIT_DEPTH
454 /****************************************************************************
456 * no faster than single satd, but needed for satd to be a drop-in replacement for sad
457 ****************************************************************************/
459 #define SATD_X( size, cpu ) \
460 static void x264_pixel_satd_x3_##size##cpu( pixel *fenc, pixel *pix0, pixel *pix1, pixel *pix2, int i_stride, int scores[3] )\
462 scores[0] = x264_pixel_satd_##size##cpu( fenc, FENC_STRIDE, pix0, i_stride );\
463 scores[1] = x264_pixel_satd_##size##cpu( fenc, FENC_STRIDE, pix1, i_stride );\
464 scores[2] = x264_pixel_satd_##size##cpu( fenc, FENC_STRIDE, pix2, i_stride );\
466 static void x264_pixel_satd_x4_##size##cpu( pixel *fenc, pixel *pix0, pixel *pix1, pixel *pix2, pixel *pix3, int i_stride, int scores[4] )\
468 scores[0] = x264_pixel_satd_##size##cpu( fenc, FENC_STRIDE, pix0, i_stride );\
469 scores[1] = x264_pixel_satd_##size##cpu( fenc, FENC_STRIDE, pix1, i_stride );\
470 scores[2] = x264_pixel_satd_##size##cpu( fenc, FENC_STRIDE, pix2, i_stride );\
471 scores[3] = x264_pixel_satd_##size##cpu( fenc, FENC_STRIDE, pix3, i_stride );\
473 #define SATD_X_DECL6( cpu )\
474 SATD_X( 16x16, cpu )\
480 #define SATD_X_DECL7( cpu )\
486 SATD_X_DECL7( _mmxext )
488 SATD_X_DECL6( _sse2 )
489 SATD_X_DECL7( _ssse3 )
490 SATD_X_DECL7( _sse4 )
492 #endif // !HIGH_BIT_DEPTH
497 SATD_X_DECL7( _neon )
499 #endif // !HIGH_BIT_DEPTH
501 #define INTRA_MBCMP_8x8( mbcmp, cpu )\
502 void x264_intra_##mbcmp##_x3_8x8##cpu( pixel *fenc, pixel edge[33], int res[3] )\
504 ALIGNED_ARRAY_16( pixel, pix, [8*FDEC_STRIDE] );\
505 x264_predict_8x8_v_c( pix, edge );\
506 res[0] = x264_pixel_##mbcmp##_8x8##cpu( pix, FDEC_STRIDE, fenc, FENC_STRIDE );\
507 x264_predict_8x8_h_c( pix, edge );\
508 res[1] = x264_pixel_##mbcmp##_8x8##cpu( pix, FDEC_STRIDE, fenc, FENC_STRIDE );\
509 x264_predict_8x8_dc_c( pix, edge );\
510 res[2] = x264_pixel_##mbcmp##_8x8##cpu( pix, FDEC_STRIDE, fenc, FENC_STRIDE );\
513 INTRA_MBCMP_8x8( sad, )
514 INTRA_MBCMP_8x8(sa8d, )
515 #if HIGH_BIT_DEPTH && HAVE_MMX
516 INTRA_MBCMP_8x8( sad, _mmxext)
517 INTRA_MBCMP_8x8( sad, _sse2 )
518 INTRA_MBCMP_8x8( sad, _ssse3 )
519 INTRA_MBCMP_8x8(sa8d, _sse2 )
522 #define INTRA_MBCMP( mbcmp, size, pred1, pred2, pred3, chroma, cpu )\
523 void x264_intra_##mbcmp##_x3_##size##x##size##chroma##cpu( pixel *fenc, pixel *fdec, int res[3] )\
525 x264_predict_##size##x##size##chroma##_##pred1##_c( fdec );\
526 res[0] = x264_pixel_##mbcmp##_##size##x##size##cpu( fdec, FDEC_STRIDE, fenc, FENC_STRIDE );\
527 x264_predict_##size##x##size##chroma##_##pred2##_c( fdec );\
528 res[1] = x264_pixel_##mbcmp##_##size##x##size##cpu( fdec, FDEC_STRIDE, fenc, FENC_STRIDE );\
529 x264_predict_##size##x##size##chroma##_##pred3##_c( fdec );\
530 res[2] = x264_pixel_##mbcmp##_##size##x##size##cpu( fdec, FDEC_STRIDE, fenc, FENC_STRIDE );\
533 INTRA_MBCMP( sad, 4, v, h, dc, , )
534 INTRA_MBCMP(satd, 4, v, h, dc, , )
535 INTRA_MBCMP( sad, 8, dc, h, v, c, )
536 INTRA_MBCMP(satd, 8, dc, h, v, c, )
537 INTRA_MBCMP( sad, 16, v, h, dc, , )
538 INTRA_MBCMP(satd, 16, v, h, dc, , )
540 #if HIGH_BIT_DEPTH && HAVE_MMX
541 INTRA_MBCMP( sad, 4, v, h, dc, , _mmxext)
542 INTRA_MBCMP(satd, 4, v, h, dc, , _mmxext)
543 INTRA_MBCMP( sad, 8, dc, h, v, c, _mmxext)
544 INTRA_MBCMP(satd, 8, dc, h, v, c, _mmxext)
545 INTRA_MBCMP( sad, 16, v, h, dc, , _mmxext)
546 INTRA_MBCMP(satd, 16, v, h, dc, , _mmxext)
547 INTRA_MBCMP( sad, 8, dc, h, v, c, _sse2 )
548 INTRA_MBCMP( sad, 16, v, h, dc, , _sse2 )
549 INTRA_MBCMP( sad, 8, dc, h, v, c, _ssse3 )
550 INTRA_MBCMP( sad, 16, v, h, dc, , _ssse3 )
553 /****************************************************************************
554 * structural similarity metric
555 ****************************************************************************/
556 static void ssim_4x4x2_core( const pixel *pix1, int stride1,
557 const pixel *pix2, int stride2,
560 for( int z = 0; z < 2; z++ )
562 uint32_t s1 = 0, s2 = 0, ss = 0, s12 = 0;
563 for( int y = 0; y < 4; y++ )
564 for( int x = 0; x < 4; x++ )
566 int a = pix1[x+y*stride1];
567 int b = pix2[x+y*stride2];
583 static float ssim_end1( int s1, int s2, int ss, int s12 )
585 /* Maximum value for 10-bit is: ss*64 = (2^10-1)^2*16*4*64 = 4286582784, which will overflow in some cases.
586 * s1*s1, s2*s2, and s1*s2 also obtain this value for edge cases: ((2^10-1)*16*4)^2 = 4286582784.
587 * Maximum value for 9-bit is: ss*64 = (2^9-1)^2*16*4*64 = 1069551616, which will not overflow. */
590 static const float ssim_c1 = .01*.01*PIXEL_MAX*PIXEL_MAX*64;
591 static const float ssim_c2 = .03*.03*PIXEL_MAX*PIXEL_MAX*64*63;
594 static const int ssim_c1 = (int)(.01*.01*PIXEL_MAX*PIXEL_MAX*64 + .5);
595 static const int ssim_c2 = (int)(.03*.03*PIXEL_MAX*PIXEL_MAX*64*63 + .5);
601 type vars = fss*64 - fs1*fs1 - fs2*fs2;
602 type covar = fs12*64 - fs1*fs2;
603 return (float)(2*fs1*fs2 + ssim_c1) * (float)(2*covar + ssim_c2)
604 / ((float)(fs1*fs1 + fs2*fs2 + ssim_c1) * (float)(vars + ssim_c2));
608 static float ssim_end4( int sum0[5][4], int sum1[5][4], int width )
611 for( int i = 0; i < width; i++ )
612 ssim += ssim_end1( sum0[i][0] + sum0[i+1][0] + sum1[i][0] + sum1[i+1][0],
613 sum0[i][1] + sum0[i+1][1] + sum1[i][1] + sum1[i+1][1],
614 sum0[i][2] + sum0[i+1][2] + sum1[i][2] + sum1[i+1][2],
615 sum0[i][3] + sum0[i+1][3] + sum1[i][3] + sum1[i+1][3] );
619 float x264_pixel_ssim_wxh( x264_pixel_function_t *pf,
620 pixel *pix1, int stride1,
621 pixel *pix2, int stride2,
622 int width, int height, void *buf, int *cnt )
626 int (*sum0)[4] = buf;
627 int (*sum1)[4] = sum0 + (width >> 2) + 3;
630 for( int y = 1; y < height; y++ )
634 XCHG( void*, sum0, sum1 );
635 for( int x = 0; x < width; x+=2 )
636 pf->ssim_4x4x2_core( &pix1[4*(x+z*stride1)], stride1, &pix2[4*(x+z*stride2)], stride2, &sum0[x] );
638 for( int x = 0; x < width-1; x += 4 )
639 ssim += pf->ssim_end4( sum0+x, sum1+x, X264_MIN(4,width-x-1) );
641 *cnt = (height-1) * (width-1);
645 int pixel_vsad( pixel *src, int stride, int height )
648 for( int i = 1; i < height; i++, src += stride )
649 for( int j = 0; j < 16; j++ )
650 score += abs(src[j] - src[j+stride]);
654 int x264_field_vsad( x264_t *h, int mb_x, int mb_y )
656 int score_field, score_frame;
657 int stride = h->fenc->i_stride[0];
658 int mb_stride = h->mb.i_mb_stride;
659 pixel *fenc = h->fenc->plane[0] + 16 * (mb_x + mb_y * stride);
660 int mb_xy = mb_x + mb_y*mb_stride;
662 /* We don't want to analyze pixels outside the frame, as it gives inaccurate results. */
663 int mbpair_height = X264_MIN( h->param.i_height - mb_y * 16, 32 );
664 score_frame = h->pixf.vsad( fenc, stride, mbpair_height );
665 score_field = h->pixf.vsad( fenc, stride*2, mbpair_height >> 1 );
666 score_field += h->pixf.vsad( fenc+stride, stride*2, mbpair_height >> 1 );
669 score_field += 512 - h->mb.field[mb_xy -1]*1024;
671 score_field += 512 - h->mb.field[mb_xy-mb_stride]*1024;
673 return (score_field < score_frame);
676 /****************************************************************************
677 * successive elimination
678 ****************************************************************************/
679 static int x264_pixel_ads4( int enc_dc[4], uint16_t *sums, int delta,
680 uint16_t *cost_mvx, int16_t *mvs, int width, int thresh )
683 for( int i = 0; i < width; i++, sums++ )
685 int ads = abs( enc_dc[0] - sums[0] )
686 + abs( enc_dc[1] - sums[8] )
687 + abs( enc_dc[2] - sums[delta] )
688 + abs( enc_dc[3] - sums[delta+8] )
696 static int x264_pixel_ads2( int enc_dc[2], uint16_t *sums, int delta,
697 uint16_t *cost_mvx, int16_t *mvs, int width, int thresh )
700 for( int i = 0; i < width; i++, sums++ )
702 int ads = abs( enc_dc[0] - sums[0] )
703 + abs( enc_dc[1] - sums[delta] )
711 static int x264_pixel_ads1( int enc_dc[1], uint16_t *sums, int delta,
712 uint16_t *cost_mvx, int16_t *mvs, int width, int thresh )
715 for( int i = 0; i<width; i++, sums++ )
717 int ads = abs( enc_dc[0] - sums[0] )
726 /****************************************************************************
728 ****************************************************************************/
729 void x264_pixel_init( int cpu, x264_pixel_function_t *pixf )
731 memset( pixf, 0, sizeof(*pixf) );
733 #define INIT2_NAME( name1, name2, cpu ) \
734 pixf->name1[PIXEL_16x16] = x264_pixel_##name2##_16x16##cpu;\
735 pixf->name1[PIXEL_16x8] = x264_pixel_##name2##_16x8##cpu;
736 #define INIT4_NAME( name1, name2, cpu ) \
737 INIT2_NAME( name1, name2, cpu ) \
738 pixf->name1[PIXEL_8x16] = x264_pixel_##name2##_8x16##cpu;\
739 pixf->name1[PIXEL_8x8] = x264_pixel_##name2##_8x8##cpu;
740 #define INIT5_NAME( name1, name2, cpu ) \
741 INIT4_NAME( name1, name2, cpu ) \
742 pixf->name1[PIXEL_8x4] = x264_pixel_##name2##_8x4##cpu;
743 #define INIT6_NAME( name1, name2, cpu ) \
744 INIT5_NAME( name1, name2, cpu ) \
745 pixf->name1[PIXEL_4x8] = x264_pixel_##name2##_4x8##cpu;
746 #define INIT7_NAME( name1, name2, cpu ) \
747 INIT6_NAME( name1, name2, cpu ) \
748 pixf->name1[PIXEL_4x4] = x264_pixel_##name2##_4x4##cpu;
749 #define INIT2( name, cpu ) INIT2_NAME( name, name, cpu )
750 #define INIT4( name, cpu ) INIT4_NAME( name, name, cpu )
751 #define INIT5( name, cpu ) INIT5_NAME( name, name, cpu )
752 #define INIT6( name, cpu ) INIT6_NAME( name, name, cpu )
753 #define INIT7( name, cpu ) INIT7_NAME( name, name, cpu )
755 #define INIT_ADS( cpu ) \
756 pixf->ads[PIXEL_16x16] = x264_pixel_ads4##cpu;\
757 pixf->ads[PIXEL_16x8] = x264_pixel_ads2##cpu;\
758 pixf->ads[PIXEL_8x8] = x264_pixel_ads1##cpu;
761 INIT7_NAME( sad_aligned, sad, );
768 INIT4( hadamard_ac, );
771 pixf->sa8d[PIXEL_16x16] = x264_pixel_sa8d_16x16;
772 pixf->sa8d[PIXEL_8x8] = x264_pixel_sa8d_8x8;
773 pixf->var[PIXEL_16x16] = x264_pixel_var_16x16;
774 pixf->var[PIXEL_8x8] = x264_pixel_var_8x8;
776 pixf->ssd_nv12_core = pixel_ssd_nv12_core;
777 pixf->ssim_4x4x2_core = ssim_4x4x2_core;
778 pixf->ssim_end4 = ssim_end4;
779 pixf->var2_8x8 = pixel_var2_8x8;
780 pixf->vsad = pixel_vsad;
782 pixf->intra_sad_x3_4x4 = x264_intra_sad_x3_4x4;
783 pixf->intra_satd_x3_4x4 = x264_intra_satd_x3_4x4;
784 pixf->intra_sad_x3_8x8 = x264_intra_sad_x3_8x8;
785 pixf->intra_sa8d_x3_8x8 = x264_intra_sa8d_x3_8x8;
786 pixf->intra_sad_x3_8x8c = x264_intra_sad_x3_8x8c;
787 pixf->intra_satd_x3_8x8c = x264_intra_satd_x3_8x8c;
788 pixf->intra_sad_x3_16x16 = x264_intra_sad_x3_16x16;
789 pixf->intra_satd_x3_16x16 = x264_intra_satd_x3_16x16;
793 if( cpu&X264_CPU_MMXEXT )
795 INIT7( sad, _mmxext );
796 INIT7( sad_x3, _mmxext );
797 INIT7( sad_x4, _mmxext );
798 INIT7( satd, _mmxext );
799 INIT7( satd_x3, _mmxext );
800 INIT7( satd_x4, _mmxext );
801 INIT4( hadamard_ac, _mmxext );
802 INIT7( ssd, _mmxext );
805 pixf->ssd_nv12_core = x264_pixel_ssd_nv12_core_mmxext;
806 pixf->var[PIXEL_16x16] = x264_pixel_var_16x16_mmxext;
807 pixf->var[PIXEL_8x8] = x264_pixel_var_8x8_mmxext;
808 pixf->var2_8x8 = x264_pixel_var2_8x8_mmxext;
810 pixf->intra_sad_x3_4x4 = x264_intra_sad_x3_4x4_mmxext;
811 pixf->intra_satd_x3_4x4 = x264_intra_satd_x3_4x4_mmxext;
812 pixf->intra_sad_x3_8x8 = x264_intra_sad_x3_8x8_mmxext;
813 pixf->intra_sad_x3_8x8c = x264_intra_sad_x3_8x8c_mmxext;
814 pixf->intra_satd_x3_8x8c = x264_intra_satd_x3_8x8c_mmxext;
815 pixf->intra_sad_x3_16x16 = x264_intra_sad_x3_16x16_mmxext;
816 pixf->intra_satd_x3_16x16 = x264_intra_satd_x3_16x16_mmxext;
818 if( cpu&X264_CPU_SSE2 )
820 INIT4_NAME( sad_aligned, sad, _sse2_aligned );
823 pixf->sa8d[PIXEL_16x16] = x264_pixel_sa8d_16x16_sse2;
824 pixf->sa8d[PIXEL_8x8] = x264_pixel_sa8d_8x8_sse2;
826 pixf->intra_sa8d_x3_8x8 = x264_intra_sa8d_x3_8x8_sse2;
828 pixf->ssd_nv12_core = x264_pixel_ssd_nv12_core_sse2;
829 pixf->ssim_4x4x2_core = x264_pixel_ssim_4x4x2_core_sse2;
830 pixf->ssim_end4 = x264_pixel_ssim_end4_sse2;
831 pixf->var[PIXEL_16x16] = x264_pixel_var_16x16_sse2;
832 pixf->var[PIXEL_8x8] = x264_pixel_var_8x8_sse2;
833 pixf->var2_8x8 = x264_pixel_var2_8x8_sse2;
835 if( (cpu&X264_CPU_SSE2) && !(cpu&X264_CPU_SSE2_IS_SLOW) )
838 INIT2( sad_x3, _sse2 );
839 INIT2( sad_x4, _sse2 );
842 if( !(cpu&X264_CPU_STACK_MOD4) )
844 INIT4( hadamard_ac, _sse2 );
847 pixf->intra_sad_x3_8x8 = x264_intra_sad_x3_8x8_sse2;
848 pixf->intra_sad_x3_8x8c = x264_intra_sad_x3_8x8c_sse2;
849 pixf->intra_sad_x3_16x16 = x264_intra_sad_x3_16x16_sse2;
851 if( cpu&X264_CPU_SSE2_IS_FAST )
853 pixf->sad[PIXEL_8x16] = x264_pixel_sad_8x16_sse2;
854 pixf->sad_x3[PIXEL_8x16] = x264_pixel_sad_x3_8x16_sse2;
855 pixf->sad_x3[PIXEL_8x8] = x264_pixel_sad_x3_8x8_sse2;
856 pixf->sad_x3[PIXEL_8x4] = x264_pixel_sad_x3_8x4_sse2;
857 pixf->sad_x4[PIXEL_8x16] = x264_pixel_sad_x4_8x16_sse2;
858 pixf->sad_x4[PIXEL_8x8] = x264_pixel_sad_x4_8x8_sse2;
859 pixf->sad_x4[PIXEL_8x4] = x264_pixel_sad_x4_8x4_sse2;
861 if( cpu&X264_CPU_SSSE3 )
863 INIT4_NAME( sad_aligned, sad, _ssse3_aligned );
864 INIT7( sad, _ssse3 );
865 INIT7( sad_x3, _ssse3 );
866 INIT7( sad_x4, _ssse3 );
869 if( !(cpu&X264_CPU_STACK_MOD4) )
871 INIT4( hadamard_ac, _ssse3 );
874 pixf->sa8d[PIXEL_16x16]= x264_pixel_sa8d_16x16_ssse3;
875 pixf->sa8d[PIXEL_8x8] = x264_pixel_sa8d_8x8_ssse3;
876 pixf->intra_sad_x3_8x8 = x264_intra_sad_x3_8x8_ssse3;
877 pixf->intra_sad_x3_8x8c = x264_intra_sad_x3_8x8c_ssse3;
878 pixf->intra_sad_x3_16x16 = x264_intra_sad_x3_16x16_ssse3;
881 #else // !HIGH_BIT_DEPTH
883 if( cpu&X264_CPU_MMX )
888 if( cpu&X264_CPU_MMXEXT )
890 INIT7( sad, _mmxext );
891 INIT7_NAME( sad_aligned, sad, _mmxext );
892 INIT7( sad_x3, _mmxext );
893 INIT7( sad_x4, _mmxext );
894 INIT7( satd, _mmxext );
895 INIT7( satd_x3, _mmxext );
896 INIT7( satd_x4, _mmxext );
897 INIT4( hadamard_ac, _mmxext );
899 pixf->var[PIXEL_16x16] = x264_pixel_var_16x16_mmxext;
900 pixf->var[PIXEL_8x8] = x264_pixel_var_8x8_mmxext;
901 pixf->ssd_nv12_core = x264_pixel_ssd_nv12_core_mmxext;
903 pixf->sa8d[PIXEL_16x16] = x264_pixel_sa8d_16x16_mmxext;
904 pixf->sa8d[PIXEL_8x8] = x264_pixel_sa8d_8x8_mmxext;
905 pixf->intra_sa8d_x3_8x8 = x264_intra_sa8d_x3_8x8_mmxext;
906 pixf->ssim_4x4x2_core = x264_pixel_ssim_4x4x2_core_mmxext;
907 pixf->var2_8x8 = x264_pixel_var2_8x8_mmxext;
908 pixf->vsad = x264_pixel_vsad_mmxext;
910 if( cpu&X264_CPU_CACHELINE_32 )
912 INIT5( sad, _cache32_mmxext );
913 INIT4( sad_x3, _cache32_mmxext );
914 INIT4( sad_x4, _cache32_mmxext );
916 else if( cpu&X264_CPU_CACHELINE_64 )
918 INIT5( sad, _cache64_mmxext );
919 INIT4( sad_x3, _cache64_mmxext );
920 INIT4( sad_x4, _cache64_mmxext );
923 if( cpu&X264_CPU_CACHELINE_64 )
925 pixf->sad[PIXEL_8x16] = x264_pixel_sad_8x16_cache64_mmxext;
926 pixf->sad[PIXEL_8x8] = x264_pixel_sad_8x8_cache64_mmxext;
927 pixf->sad[PIXEL_8x4] = x264_pixel_sad_8x4_cache64_mmxext;
928 pixf->sad_x3[PIXEL_8x16] = x264_pixel_sad_x3_8x16_cache64_mmxext;
929 pixf->sad_x3[PIXEL_8x8] = x264_pixel_sad_x3_8x8_cache64_mmxext;
930 pixf->sad_x4[PIXEL_8x16] = x264_pixel_sad_x4_8x16_cache64_mmxext;
931 pixf->sad_x4[PIXEL_8x8] = x264_pixel_sad_x4_8x8_cache64_mmxext;
934 pixf->intra_satd_x3_16x16 = x264_intra_satd_x3_16x16_mmxext;
935 pixf->intra_sad_x3_16x16 = x264_intra_sad_x3_16x16_mmxext;
936 pixf->intra_satd_x3_8x8c = x264_intra_satd_x3_8x8c_mmxext;
937 pixf->intra_sad_x3_8x8c = x264_intra_sad_x3_8x8c_mmxext;
938 pixf->intra_sad_x3_8x8 = x264_intra_sad_x3_8x8_mmxext;
939 pixf->intra_satd_x3_4x4 = x264_intra_satd_x3_4x4_mmxext;
940 pixf->intra_sad_x3_4x4 = x264_intra_sad_x3_4x4_mmxext;
943 if( cpu&X264_CPU_SSE2 )
945 INIT5( ssd, _sse2slow );
946 INIT2_NAME( sad_aligned, sad, _sse2_aligned );
947 pixf->var[PIXEL_16x16] = x264_pixel_var_16x16_sse2;
948 pixf->ssd_nv12_core = x264_pixel_ssd_nv12_core_sse2;
949 pixf->ssim_4x4x2_core = x264_pixel_ssim_4x4x2_core_sse2;
950 pixf->ssim_end4 = x264_pixel_ssim_end4_sse2;
951 pixf->sa8d[PIXEL_16x16] = x264_pixel_sa8d_16x16_sse2;
952 pixf->sa8d[PIXEL_8x8] = x264_pixel_sa8d_8x8_sse2;
954 pixf->intra_sa8d_x3_8x8 = x264_intra_sa8d_x3_8x8_sse2;
956 pixf->var2_8x8 = x264_pixel_var2_8x8_sse2;
957 pixf->vsad = x264_pixel_vsad_sse2;
960 if( (cpu&X264_CPU_SSE2) && !(cpu&X264_CPU_SSE2_IS_SLOW) )
963 INIT2( sad_x3, _sse2 );
964 INIT2( sad_x4, _sse2 );
965 INIT6( satd, _sse2 );
966 INIT6( satd_x3, _sse2 );
967 INIT6( satd_x4, _sse2 );
968 if( !(cpu&X264_CPU_STACK_MOD4) )
970 INIT4( hadamard_ac, _sse2 );
973 pixf->var[PIXEL_8x8] = x264_pixel_var_8x8_sse2;
974 pixf->intra_sad_x3_16x16 = x264_intra_sad_x3_16x16_sse2;
975 if( cpu&X264_CPU_CACHELINE_64 )
977 INIT2( ssd, _sse2); /* faster for width 16 on p4 */
979 INIT2( sad, _cache64_sse2 );
980 INIT2( sad_x3, _cache64_sse2 );
981 INIT2( sad_x4, _cache64_sse2 );
983 if( cpu&X264_CPU_SSE2_IS_FAST )
985 pixf->sad_x3[PIXEL_8x16] = x264_pixel_sad_x3_8x16_cache64_sse2;
986 pixf->sad_x4[PIXEL_8x16] = x264_pixel_sad_x4_8x16_cache64_sse2;
990 if( cpu&X264_CPU_SSE_MISALIGN )
992 INIT2( sad_x3, _sse2_misalign );
993 INIT2( sad_x4, _sse2_misalign );
997 if( cpu&X264_CPU_SSE2_IS_FAST && !(cpu&X264_CPU_CACHELINE_64) )
999 pixf->sad_aligned[PIXEL_8x16] = x264_pixel_sad_8x16_sse2;
1000 pixf->sad[PIXEL_8x16] = x264_pixel_sad_8x16_sse2;
1001 pixf->sad_x3[PIXEL_8x16] = x264_pixel_sad_x3_8x16_sse2;
1002 pixf->sad_x3[PIXEL_8x8] = x264_pixel_sad_x3_8x8_sse2;
1003 pixf->sad_x3[PIXEL_8x4] = x264_pixel_sad_x3_8x4_sse2;
1004 pixf->sad_x4[PIXEL_8x16] = x264_pixel_sad_x4_8x16_sse2;
1005 pixf->sad_x4[PIXEL_8x8] = x264_pixel_sad_x4_8x8_sse2;
1006 pixf->sad_x4[PIXEL_8x4] = x264_pixel_sad_x4_8x4_sse2;
1009 if( (cpu&X264_CPU_SSE3) && (cpu&X264_CPU_CACHELINE_64) )
1011 INIT2( sad, _sse3 );
1012 INIT2( sad_x3, _sse3 );
1013 INIT2( sad_x4, _sse3 );
1016 if( cpu&X264_CPU_SSSE3 )
1018 if( !(cpu&X264_CPU_STACK_MOD4) )
1020 INIT4( hadamard_ac, _ssse3 );
1023 if( !(cpu&X264_CPU_SLOW_ATOM) )
1025 INIT7( ssd, _ssse3 );
1026 pixf->sa8d[PIXEL_16x16]= x264_pixel_sa8d_16x16_ssse3;
1027 pixf->sa8d[PIXEL_8x8] = x264_pixel_sa8d_8x8_ssse3;
1028 INIT7( satd, _ssse3 );
1029 INIT7( satd_x3, _ssse3 );
1030 INIT7( satd_x4, _ssse3 );
1032 pixf->intra_satd_x3_16x16 = x264_intra_satd_x3_16x16_ssse3;
1033 pixf->intra_sad_x3_16x16 = x264_intra_sad_x3_16x16_ssse3;
1034 pixf->intra_satd_x3_8x8c = x264_intra_satd_x3_8x8c_ssse3;
1035 pixf->intra_sad_x3_8x8c = x264_intra_sad_x3_8x8c_ssse3;
1036 pixf->intra_satd_x3_4x4 = x264_intra_satd_x3_4x4_ssse3;
1038 pixf->intra_sa8d_x3_8x8 = x264_intra_sa8d_x3_8x8_ssse3;
1040 pixf->var2_8x8 = x264_pixel_var2_8x8_ssse3;
1041 if( cpu&X264_CPU_CACHELINE_64 )
1043 INIT2( sad, _cache64_ssse3 );
1044 INIT2( sad_x3, _cache64_ssse3 );
1045 INIT2( sad_x4, _cache64_ssse3 );
1047 if( cpu&X264_CPU_SLOW_ATOM || !(cpu&X264_CPU_SHUFFLE_IS_FAST) )
1049 INIT5( ssd, _sse2 ); /* on conroe, sse2 is faster for width8/16 */
1053 if( cpu&X264_CPU_SSE4 )
1055 INIT7( satd, _sse4 );
1056 INIT7( satd_x3, _sse4 );
1057 INIT7( satd_x4, _sse4 );
1058 if( !(cpu&X264_CPU_STACK_MOD4) )
1060 INIT4( hadamard_ac, _sse4 );
1062 pixf->sa8d[PIXEL_16x16]= x264_pixel_sa8d_16x16_sse4;
1063 pixf->sa8d[PIXEL_8x8] = x264_pixel_sa8d_8x8_sse4;
1064 pixf->intra_sad_x3_4x4 = x264_intra_sad_x3_4x4_sse4;
1065 /* Slower on Conroe, so only enable under SSE4 */
1066 pixf->intra_sad_x3_8x8 = x264_intra_sad_x3_8x8_ssse3;
1069 if( cpu&X264_CPU_AVX )
1071 INIT7( satd, _avx );
1072 INIT7( satd_x3, _avx );
1073 INIT7( satd_x4, _avx );
1074 pixf->ads[PIXEL_16x16] = x264_pixel_ads4_avx;
1075 pixf->ads[PIXEL_16x8] = x264_pixel_ads2_avx;
1076 if( !(cpu&X264_CPU_STACK_MOD4) )
1078 INIT4( hadamard_ac, _avx );
1082 pixf->sa8d[PIXEL_16x16]= x264_pixel_sa8d_16x16_avx;
1083 pixf->sa8d[PIXEL_8x8] = x264_pixel_sa8d_8x8_avx;
1084 pixf->intra_sa8d_x3_8x8= x264_intra_sa8d_x3_8x8_avx;
1086 pixf->ssd_nv12_core = x264_pixel_ssd_nv12_core_avx;
1087 pixf->var[PIXEL_16x16] = x264_pixel_var_16x16_avx;
1088 pixf->var[PIXEL_8x8] = x264_pixel_var_8x8_avx;
1089 pixf->ssim_4x4x2_core = x264_pixel_ssim_4x4x2_core_avx;
1090 pixf->ssim_end4 = x264_pixel_ssim_end4_avx;
1091 pixf->intra_sad_x3_4x4 = x264_intra_sad_x3_4x4_avx;
1092 pixf->intra_sad_x3_8x8 = x264_intra_sad_x3_8x8_avx;
1097 if( cpu&X264_CPU_ARMV6 )
1099 pixf->sad[PIXEL_4x8] = x264_pixel_sad_4x8_armv6;
1100 pixf->sad[PIXEL_4x4] = x264_pixel_sad_4x4_armv6;
1101 pixf->sad_aligned[PIXEL_4x8] = x264_pixel_sad_4x8_armv6;
1102 pixf->sad_aligned[PIXEL_4x4] = x264_pixel_sad_4x4_armv6;
1104 if( cpu&X264_CPU_NEON )
1106 INIT5( sad, _neon );
1107 INIT5( sad_aligned, _neon );
1108 INIT7( sad_x3, _neon );
1109 INIT7( sad_x4, _neon );
1110 INIT7( ssd, _neon );
1111 INIT7( satd, _neon );
1112 INIT7( satd_x3, _neon );
1113 INIT7( satd_x4, _neon );
1114 INIT4( hadamard_ac, _neon );
1115 pixf->sa8d[PIXEL_8x8] = x264_pixel_sa8d_8x8_neon;
1116 pixf->sa8d[PIXEL_16x16] = x264_pixel_sa8d_16x16_neon;
1117 pixf->var[PIXEL_8x8] = x264_pixel_var_8x8_neon;
1118 pixf->var[PIXEL_16x16] = x264_pixel_var_16x16_neon;
1119 pixf->var2_8x8 = x264_pixel_var2_8x8_neon;
1121 pixf->ssim_4x4x2_core = x264_pixel_ssim_4x4x2_core_neon;
1122 pixf->ssim_end4 = x264_pixel_ssim_end4_neon;
1124 if( cpu&X264_CPU_FAST_NEON_MRC )
1126 pixf->sad[PIXEL_4x8] = x264_pixel_sad_4x8_neon;
1127 pixf->sad[PIXEL_4x4] = x264_pixel_sad_4x4_neon;
1128 pixf->sad_aligned[PIXEL_4x8] = x264_pixel_sad_aligned_4x8_neon;
1129 pixf->sad_aligned[PIXEL_4x4] = x264_pixel_sad_aligned_4x4_neon;
1131 else // really just scheduled for dual issue / A8
1133 INIT5( sad_aligned, _neon_dual );
1137 #endif // HIGH_BIT_DEPTH
1139 if( cpu&X264_CPU_ALTIVEC )
1141 x264_pixel_altivec_init( pixf );
1147 INIT4( sad_x3, _vis );
1148 INIT4( sad_x4, _vis );
1150 #endif // !HIGH_BIT_DEPTH
1152 pixf->ads[PIXEL_8x16] =
1153 pixf->ads[PIXEL_8x4] =
1154 pixf->ads[PIXEL_4x8] = pixf->ads[PIXEL_16x8];
1155 pixf->ads[PIXEL_4x4] = pixf->ads[PIXEL_8x8];