1 /*****************************************************************************
2 * pixel.c: h264 encoder
3 *****************************************************************************
4 * Copyright (C) 2003 Laurent Aimar
5 * $Id: pixel.c,v 1.1 2004/06/03 19:27:07 fenrir Exp $
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
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.
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.
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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
30 # include "i386/pixel.h"
33 # include "ppc/pixel.h"
35 #ifdef ARCH_UltraSparc
36 # include "sparc/pixel.h"
40 /****************************************************************************
42 ****************************************************************************/
43 #define PIXEL_SAD_C( name, lx, ly ) \
44 static int name( uint8_t *pix1, int i_stride_pix1, \
45 uint8_t *pix2, int i_stride_pix2 ) \
49 for( y = 0; y < ly; y++ ) \
51 for( x = 0; x < lx; x++ ) \
53 i_sum += abs( pix1[x] - pix2[x] ); \
55 pix1 += i_stride_pix1; \
56 pix2 += i_stride_pix2; \
62 PIXEL_SAD_C( x264_pixel_sad_16x16, 16, 16 )
63 PIXEL_SAD_C( x264_pixel_sad_16x8, 16, 8 )
64 PIXEL_SAD_C( x264_pixel_sad_8x16, 8, 16 )
65 PIXEL_SAD_C( x264_pixel_sad_8x8, 8, 8 )
66 PIXEL_SAD_C( x264_pixel_sad_8x4, 8, 4 )
67 PIXEL_SAD_C( x264_pixel_sad_4x8, 4, 8 )
68 PIXEL_SAD_C( x264_pixel_sad_4x4, 4, 4 )
71 /****************************************************************************
73 ****************************************************************************/
74 #define PIXEL_SSD_C( name, lx, ly ) \
75 static int name( uint8_t *pix1, int i_stride_pix1, \
76 uint8_t *pix2, int i_stride_pix2 ) \
80 for( y = 0; y < ly; y++ ) \
82 for( x = 0; x < lx; x++ ) \
84 int d = pix1[x] - pix2[x]; \
87 pix1 += i_stride_pix1; \
88 pix2 += i_stride_pix2; \
93 PIXEL_SSD_C( x264_pixel_ssd_16x16, 16, 16 )
94 PIXEL_SSD_C( x264_pixel_ssd_16x8, 16, 8 )
95 PIXEL_SSD_C( x264_pixel_ssd_8x16, 8, 16 )
96 PIXEL_SSD_C( x264_pixel_ssd_8x8, 8, 8 )
97 PIXEL_SSD_C( x264_pixel_ssd_8x4, 8, 4 )
98 PIXEL_SSD_C( x264_pixel_ssd_4x8, 4, 8 )
99 PIXEL_SSD_C( x264_pixel_ssd_4x4, 4, 4 )
101 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 )
106 #define SSD(size) i_ssd += pf->ssd[size]( pix1 + y*i_pix1 + x, i_pix1, \
107 pix2 + y*i_pix2 + x, i_pix2 );
108 for( y = 0; y < i_height-15; y += 16 )
110 for( x = 0; x < i_width-15; x += 16 )
116 for( x = 0; x < i_width-7; x += 8 )
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 )
123 for( y = 0; y < (i_height & ~7); y++ )
124 for( x = i_width & ~7; x < i_width; x++ )
127 if( i_height % 8 != 0 )
129 for( y = i_height & ~7; y < i_height; y++ )
130 for( x = 0; x < i_width; x++ )
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 )
143 for( y = 0; y < i_size; y++ )
145 for( x = 0; x < i_size; x++ )
147 diff[x + y*i_size] = pix1[x] - pix2[x];
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 )
165 for( y = 0; y < i_height; y += 4 )
167 for( x = 0; x < i_width; x += 4 )
171 pixel_sub_wxh( (int16_t*)diff, 4, &pix1[x], i_pix1, &pix2[x], i_pix2 );
173 for( d = 0; d < 4; d++ )
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];
181 tmp[d][0] = s01 + s23;
182 tmp[d][1] = s01 - s23;
183 tmp[d][2] = d01 - d23;
184 tmp[d][3] = d01 + d23;
186 for( d = 0; d < 4; d++ )
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];
194 i_satd += abs( s01 + s23 ) + abs( s01 - s23 ) + abs( d01 - d23 ) + abs( d01 + d23 );
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 ) \
208 return pixel_satd_wxh( pix1, i_stride_pix1, pix2, i_stride_pix2, width, height ); \
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 )
219 /****************************************************************************
220 * pixel_sa8d_WxH: sum of 8x8 Hadamard transformed differences
221 ****************************************************************************/
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;\
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 )
256 for( y = 0; y < i_height; y += 8 )
258 for( x = 0; x < i_width; x += 8 )
261 pixel_sub_wxh( (int16_t*)diff, 8, pix1+x, i_pix1, pix2+x, i_pix2 );
263 #define SRC(x) diff[i][x]
264 #define DST(x,rhs) diff[i][x] = (rhs)
265 for( i = 0; i < 8; i++ )
270 #define SRC(x) diff[x][i]
271 #define DST(x,rhs) i_satd += abs(rhs)
272 for( i = 0; i < 8; i++ )
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 ) \
288 return ( pixel_sa8d_wxh( pix1, i_stride_pix1, pix2, i_stride_pix2, width, height ) + 2 ) >> 2; \
290 PIXEL_SA8D_C( 16, 16 )
291 PIXEL_SA8D_C( 16, 8 )
292 PIXEL_SA8D_C( 8, 16 )
295 #define SAD_X( size ) \
296 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] )\
298 scores[0] = x264_pixel_sad_##size( fenc, FENC_STRIDE, pix0, i_stride );\
299 scores[1] = x264_pixel_sad_##size( fenc, FENC_STRIDE, pix1, i_stride );\
300 scores[2] = x264_pixel_sad_##size( fenc, FENC_STRIDE, pix2, i_stride );\
302 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] )\
304 scores[0] = x264_pixel_sad_##size( fenc, FENC_STRIDE, pix0, i_stride );\
305 scores[1] = x264_pixel_sad_##size( fenc, FENC_STRIDE, pix1, i_stride );\
306 scores[2] = x264_pixel_sad_##size( fenc, FENC_STRIDE, pix2, i_stride );\
307 scores[3] = x264_pixel_sad_##size( fenc, FENC_STRIDE, pix3, i_stride );\
318 #ifdef ARCH_UltraSparc
325 /****************************************************************************
327 ****************************************************************************/
328 void x264_pixel_init( int cpu, x264_pixel_function_t *pixf )
330 memset( pixf, 0, sizeof(*pixf) );
332 #define INIT( name, cpu ) \
333 pixf->name[PIXEL_16x16] = x264_pixel_##name##_16x16##cpu;\
334 pixf->name[PIXEL_16x8] = x264_pixel_##name##_16x8##cpu;\
335 pixf->name[PIXEL_8x16] = x264_pixel_##name##_8x16##cpu;\
336 pixf->name[PIXEL_8x8] = x264_pixel_##name##_8x8##cpu;\
337 pixf->name[PIXEL_8x4] = x264_pixel_##name##_8x4##cpu;\
338 pixf->name[PIXEL_4x8] = x264_pixel_##name##_4x8##cpu;\
339 pixf->name[PIXEL_4x4] = x264_pixel_##name##_4x4##cpu;
347 pixf->sa8d[PIXEL_16x16]= x264_pixel_sa8d_16x16;
348 pixf->sa8d[PIXEL_16x8] = x264_pixel_sa8d_16x8;
349 pixf->sa8d[PIXEL_8x16] = x264_pixel_sa8d_8x16;
350 pixf->sa8d[PIXEL_8x8] = x264_pixel_sa8d_8x8;
353 if( cpu&X264_CPU_MMX )
358 if( cpu&X264_CPU_MMXEXT )
360 INIT( sad, _mmxext );
361 INIT( sad_x3, _mmxext );
362 INIT( sad_x4, _mmxext );
363 INIT( satd, _mmxext );
365 pixf->sad_pde[PIXEL_16x16] = x264_pixel_sad_pde_16x16_mmxext;
366 pixf->sad_pde[PIXEL_16x8 ] = x264_pixel_sad_pde_16x8_mmxext;
367 pixf->sad_pde[PIXEL_8x16 ] = x264_pixel_sad_pde_8x16_mmxext;
370 pixf->sa8d[PIXEL_16x16] = x264_pixel_sa8d_16x16_mmxext;
371 pixf->sa8d[PIXEL_8x8] = x264_pixel_sa8d_8x8_mmxext;
372 pixf->intra_sa8d_x3_8x8 = x264_intra_sa8d_x3_8x8_mmxext;
374 pixf->intra_satd_x3_16x16 = x264_intra_satd_x3_16x16_mmxext;
375 pixf->intra_satd_x3_8x8c = x264_intra_satd_x3_8x8c_mmxext;
376 pixf->intra_satd_x3_4x4 = x264_intra_satd_x3_4x4_mmxext;
381 // disable on AMD processors since it is slower
382 if( (cpu&X264_CPU_SSE2) && !(cpu&X264_CPU_3DNOW) )
384 pixf->sad[PIXEL_16x16] = x264_pixel_sad_16x16_sse2;
385 pixf->sad[PIXEL_16x8 ] = x264_pixel_sad_16x8_sse2;
387 pixf->satd[PIXEL_16x16]= x264_pixel_satd_16x16_sse2;
388 pixf->satd[PIXEL_16x8] = x264_pixel_satd_16x8_sse2;
389 pixf->satd[PIXEL_8x16] = x264_pixel_satd_8x16_sse2;
390 pixf->satd[PIXEL_8x8] = x264_pixel_satd_8x8_sse2;
391 pixf->satd[PIXEL_8x4] = x264_pixel_satd_8x4_sse2;
394 pixf->sad_x3[PIXEL_16x16] = x264_pixel_sad_x3_16x16_sse2;
395 pixf->sad_x3[PIXEL_16x8 ] = x264_pixel_sad_x3_16x8_sse2;
397 pixf->sad_x4[PIXEL_16x16] = x264_pixel_sad_x4_16x16_sse2;
398 pixf->sad_x4[PIXEL_16x8 ] = x264_pixel_sad_x4_16x8_sse2;
401 // these are faster on both Intel and AMD
402 if( cpu&X264_CPU_SSE2 )
404 pixf->ssd[PIXEL_16x16] = x264_pixel_ssd_16x16_sse2;
405 pixf->ssd[PIXEL_16x8] = x264_pixel_ssd_16x8_sse2;
408 pixf->sa8d[PIXEL_16x16] = x264_pixel_sa8d_16x16_sse2;
409 pixf->sa8d[PIXEL_8x8] = x264_pixel_sa8d_8x8_sse2;
410 pixf->intra_sa8d_x3_8x8 = x264_intra_sa8d_x3_8x8_sse2;
416 if( cpu&X264_CPU_ALTIVEC )
418 x264_pixel_altivec_init( pixf );
421 #ifdef ARCH_UltraSparc
422 pixf->sad[PIXEL_8x8] = x264_pixel_sad_8x8_vis;
423 pixf->sad[PIXEL_8x16] = x264_pixel_sad_8x16_vis;
424 pixf->sad[PIXEL_16x8] = x264_pixel_sad_16x8_vis;
425 pixf->sad[PIXEL_16x16] = x264_pixel_sad_16x16_vis;
427 pixf->sad_x3[PIXEL_8x8] = x264_pixel_sad_x3_8x8_vis;
428 pixf->sad_x3[PIXEL_8x16] = x264_pixel_sad_x3_8x16_vis;
429 pixf->sad_x3[PIXEL_16x8] = x264_pixel_sad_x3_16x8_vis;
430 pixf->sad_x3[PIXEL_16x16] = x264_pixel_sad_x3_16x16_vis;
432 pixf->sad_x4[PIXEL_8x8] = x264_pixel_sad_x4_8x8_vis;
433 pixf->sad_x4[PIXEL_8x16] = x264_pixel_sad_x4_8x16_vis;
434 pixf->sad_x4[PIXEL_16x8] = x264_pixel_sad_x4_16x8_vis;
435 pixf->sad_x4[PIXEL_16x16] = x264_pixel_sad_x4_16x16_vis;