/*****************************************************************************
* pixel.c: h264 encoder
*****************************************************************************
- * Copyright (C) 2003 Laurent Aimar
- * $Id: pixel.c,v 1.1 2004/06/03 19:27:07 fenrir Exp $
+ * Copyright (C) 2003-2008 x264 project
*
- * Authors: Laurent Aimar <fenrir@via.ecp.fr>
+ * Authors: Loren Merritt <lorenm@u.washington.edu>
+ * Laurent Aimar <fenrir@via.ecp.fr>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
*****************************************************************************/
#include "common.h"
}
-static inline void pixel_sub_wxh( int16_t *diff, int i_size,
- uint8_t *pix1, int i_pix1, uint8_t *pix2, int i_pix2 )
-{
- int y, x;
- for( y = 0; y < i_size; y++ )
- {
- for( x = 0; x < i_size; x++ )
- {
- diff[x + y*i_size] = pix1[x] - pix2[x];
- }
- pix1 += i_pix1;
- pix2 += i_pix2;
- }
+/****************************************************************************
+ * pixel_var_wxh
+ ****************************************************************************/
+#define PIXEL_VAR_C( name, w, shift ) \
+static int name( uint8_t *pix, int i_stride, uint32_t *sad ) \
+{ \
+ uint32_t var = 0, sum = 0, sqr = 0; \
+ int x, y; \
+ for( y = 0; y < w; y++ ) \
+ { \
+ for( x = 0; x < w; x++ ) \
+ { \
+ sum += pix[x]; \
+ sqr += pix[x] * pix[x]; \
+ } \
+ pix += i_stride; \
+ } \
+ var = sqr - (sum * sum >> shift); \
+ *sad = sum; \
+ return var; \
}
+PIXEL_VAR_C( x264_pixel_var_16x16, 16, 8 )
+PIXEL_VAR_C( x264_pixel_var_8x8, 8, 6 )
+
+
+#define HADAMARD4(d0,d1,d2,d3,s0,s1,s2,s3) {\
+ int t0 = s0 + s1;\
+ int t1 = s0 - s1;\
+ int t2 = s2 + s3;\
+ int t3 = s2 - s3;\
+ d0 = t0 + t2;\
+ d2 = t0 - t2;\
+ d1 = t1 + t3;\
+ d3 = t1 - t3;\
+}
/****************************************************************************
* pixel_satd_WxH: sum of 4x4 Hadamard transformed differences
static int pixel_satd_wxh( uint8_t *pix1, int i_pix1, uint8_t *pix2, int i_pix2, int i_width, int i_height )
{
int16_t tmp[4][4];
- int16_t diff[4][4];
int x, y;
int i_satd = 0;
{
for( x = 0; x < i_width; x += 4 )
{
- int d;
-
- pixel_sub_wxh( (int16_t*)diff, 4, &pix1[x], i_pix1, &pix2[x], i_pix2 );
+ int i;
+ uint8_t *p1 = pix1+x, *p2 = pix2+x;
- for( d = 0; d < 4; d++ )
+ for( i=0; i<4; i++, p1+=i_pix1, p2+=i_pix2 )
{
- int s01, s23;
- int d01, d23;
-
- s01 = diff[d][0] + diff[d][1]; s23 = diff[d][2] + diff[d][3];
- d01 = diff[d][0] - diff[d][1]; d23 = diff[d][2] - diff[d][3];
-
- tmp[d][0] = s01 + s23;
- tmp[d][1] = s01 - s23;
- tmp[d][2] = d01 - d23;
- tmp[d][3] = d01 + d23;
+ int a0 = p1[0] - p2[0];
+ int a1 = p1[1] - p2[1];
+ int a2 = p1[2] - p2[2];
+ int a3 = p1[3] - p2[3];
+ HADAMARD4( tmp[i][0], tmp[i][1], tmp[i][2], tmp[i][3], a0,a1,a2,a3 );
}
- for( d = 0; d < 4; d++ )
+ for( i=0; i<4; i++ )
{
- int s01, s23;
- int d01, d23;
-
- s01 = tmp[0][d] + tmp[1][d]; s23 = tmp[2][d] + tmp[3][d];
- d01 = tmp[0][d] - tmp[1][d]; d23 = tmp[2][d] - tmp[3][d];
-
- i_satd += abs( s01 + s23 ) + abs( s01 - s23 ) + abs( d01 - d23 ) + abs( d01 + d23 );
+ int a0,a1,a2,a3;
+ HADAMARD4( a0,a1,a2,a3, tmp[0][i], tmp[1][i], tmp[2][i], tmp[3][i] );
+ i_satd += abs(a0) + abs(a1) + abs(a2) + abs(a3);
}
}
* pixel_sa8d_WxH: sum of 8x8 Hadamard transformed differences
****************************************************************************/
#define SA8D_1D {\
- const int a0 = SRC(0) + SRC(4);\
- const int a4 = SRC(0) - SRC(4);\
- const int a1 = SRC(1) + SRC(5);\
- const int a5 = SRC(1) - SRC(5);\
- const int a2 = SRC(2) + SRC(6);\
- const int a6 = SRC(2) - SRC(6);\
- const int a3 = SRC(3) + SRC(7);\
- const int a7 = SRC(3) - SRC(7);\
- const int b0 = a0 + a2;\
- const int b2 = a0 - a2;\
- const int b1 = a1 + a3;\
- const int b3 = a1 - a3;\
- const int b4 = a4 + a6;\
- const int b6 = a4 - a6;\
- const int b5 = a5 + a7;\
- const int b7 = a5 - a7;\
- DST(0, b0 + b1);\
- DST(1, b0 - b1);\
- DST(2, b2 + b3);\
- DST(3, b2 - b3);\
- DST(4, b4 + b5);\
- DST(5, b4 - b5);\
- DST(6, b6 + b7);\
- DST(7, b6 - b7);\
+ int b0,b1,b2,b3,b4,b5,b6,b7;\
+ HADAMARD4( b0,b1,b2,b3, SRC(0), SRC(1), SRC(2), SRC(3) );\
+ HADAMARD4( b4,b5,b6,b7, SRC(4), SRC(5), SRC(6), SRC(7) );\
+ DST(0, b0 + b4);\
+ DST(4, b0 - b4);\
+ DST(1, b1 + b5);\
+ DST(5, b1 - b5);\
+ DST(2, b2 + b6);\
+ DST(6, b2 - b6);\
+ DST(3, b3 + b7);\
+ DST(7, b3 - b7);\
}
static inline int pixel_sa8d_wxh( uint8_t *pix1, int i_pix1, uint8_t *pix2, int i_pix2,
for( x = 0; x < i_width; x += 8 )
{
int i;
- pixel_sub_wxh( (int16_t*)diff, 8, pix1+x, i_pix1, pix2+x, i_pix2 );
+ uint8_t *p1 = pix1+x, *p2 = pix2+x;
-#define SRC(x) diff[i][x]
+#define SRC(x) a##x
#define DST(x,rhs) diff[i][x] = (rhs)
- for( i = 0; i < 8; i++ )
+ for( i=0; i<8; i++, p1+=i_pix1, p2+=i_pix2 )
+ {
+ int a0 = p1[0] - p2[0];
+ int a1 = p1[1] - p2[1];
+ int a2 = p1[2] - p2[2];
+ int a3 = p1[3] - p2[3];
+ int a4 = p1[4] - p2[4];
+ int a5 = p1[5] - p2[5];
+ int a6 = p1[6] - p2[6];
+ int a7 = p1[7] - p2[7];
SA8D_1D
+ }
#undef SRC
#undef DST
#define SRC(x) diff[x][i]
#define DST(x,rhs) i_satd += abs(rhs)
- for( i = 0; i < 8; i++ )
+ for( i=0; i<8; i++ )
SA8D_1D
#undef SRC
#undef DST
PIXEL_SA8D_C( 8, 16 )
PIXEL_SA8D_C( 8, 8 )
+
+static uint64_t pixel_hadamard_ac( uint8_t *pix, int stride )
+{
+ int16_t tmp[8][8];
+ int sum4=0, sum8=0;
+ int i;
+ for( i=0; i<8; i++, pix+=stride )
+ {
+ HADAMARD4( tmp[0][i], tmp[1][i], tmp[2][i], tmp[3][i],
+ pix[0], pix[1], pix[2], pix[3] );
+ HADAMARD4( tmp[4][i], tmp[5][i], tmp[6][i], tmp[7][i],
+ pix[4], pix[5], pix[6], pix[7] );
+ }
+ for( i=0; i<8; i++ )
+ {
+ int a0,a1,a2,a3,a4,a5,a6,a7;
+ HADAMARD4( a0,a1,a2,a3, tmp[i][0], tmp[i][1], tmp[i][2], tmp[i][3] );
+ sum4 += abs(a0) + abs(a1) + abs(a2) + abs(a3);
+ HADAMARD4( a4,a5,a6,a7, tmp[i][4], tmp[i][5], tmp[i][6], tmp[i][7] );
+ sum4 += abs(a4) + abs(a5) + abs(a6) + abs(a7);
+ tmp[i][0] = a0 + a4;
+ tmp[i][4] = a0 - a4;
+ tmp[i][1] = a1 + a5;
+ tmp[i][5] = a1 - a5;
+ tmp[i][2] = a2 + a6;
+ tmp[i][6] = a2 - a6;
+ tmp[i][3] = a3 + a7;
+ tmp[i][7] = a3 - a7;
+ }
+ for( i=0; i<8; i++ )
+ {
+ sum8 += abs( tmp[0][i] + tmp[4][i] )
+ + abs( tmp[0][i] - tmp[4][i] )
+ + abs( tmp[1][i] + tmp[5][i] )
+ + abs( tmp[1][i] - tmp[5][i] )
+ + abs( tmp[2][i] + tmp[6][i] )
+ + abs( tmp[2][i] - tmp[6][i] )
+ + abs( tmp[3][i] + tmp[7][i] )
+ + abs( tmp[3][i] - tmp[7][i] );
+ }
+ sum4 -= tmp[0][0]+tmp[4][0];
+ sum8 -= tmp[0][0]+tmp[4][0];
+ return ((uint64_t)sum8<<32) + sum4;
+}
+
+#define HADAMARD_AC(w,h) \
+static uint64_t x264_pixel_hadamard_ac_##w##x##h( uint8_t *pix, int stride )\
+{\
+ uint64_t sum = pixel_hadamard_ac( pix, stride );\
+ if( w==16 )\
+ sum += pixel_hadamard_ac( pix+8, stride );\
+ if( h==16 )\
+ sum += pixel_hadamard_ac( pix+8*stride, stride );\
+ if( w==16 && h==16 )\
+ sum += pixel_hadamard_ac( pix+8*stride+8, stride );\
+ return ((sum>>34)<<32) + ((uint32_t)sum>>1);\
+}
+HADAMARD_AC( 16, 16 )
+HADAMARD_AC( 16, 8 )
+HADAMARD_AC( 8, 16 )
+HADAMARD_AC( 8, 8 )
+
+
/****************************************************************************
* pixel_sad_x4
****************************************************************************/
#ifdef HAVE_MMX
SATD_X_DECL7( _mmxext )
SATD_X_DECL5( _sse2 )
-#ifdef HAVE_SSE3
SATD_X_DECL7( _ssse3 )
-#endif
+SATD_X_DECL5( _ssse3_phadd )
#endif
/****************************************************************************
}
x264_free(sum0);
x264_free(sum1);
- return ssim / ((width-1) * (height-1));
+ return ssim;
}
{
memset( pixf, 0, sizeof(*pixf) );
-#define INIT2( name, cpu ) \
- pixf->name[PIXEL_16x16] = x264_pixel_##name##_16x16##cpu;\
- pixf->name[PIXEL_16x8] = x264_pixel_##name##_16x8##cpu;
-#define INIT4( name, cpu ) \
- INIT2( name, cpu ) \
- pixf->name[PIXEL_8x16] = x264_pixel_##name##_8x16##cpu;\
- pixf->name[PIXEL_8x8] = x264_pixel_##name##_8x8##cpu;
-#define INIT5( name, cpu ) \
- INIT4( name, cpu ) \
- pixf->name[PIXEL_8x4] = x264_pixel_##name##_8x4##cpu;
-#define INIT7( name, cpu ) \
- INIT5( name, cpu ) \
- pixf->name[PIXEL_4x8] = x264_pixel_##name##_4x8##cpu;\
- pixf->name[PIXEL_4x4] = x264_pixel_##name##_4x4##cpu;
+#define INIT2_NAME( name1, name2, cpu ) \
+ pixf->name1[PIXEL_16x16] = x264_pixel_##name2##_16x16##cpu;\
+ pixf->name1[PIXEL_16x8] = x264_pixel_##name2##_16x8##cpu;
+#define INIT4_NAME( name1, name2, cpu ) \
+ INIT2_NAME( name1, name2, cpu ) \
+ pixf->name1[PIXEL_8x16] = x264_pixel_##name2##_8x16##cpu;\
+ pixf->name1[PIXEL_8x8] = x264_pixel_##name2##_8x8##cpu;
+#define INIT5_NAME( name1, name2, cpu ) \
+ INIT4_NAME( name1, name2, cpu ) \
+ pixf->name1[PIXEL_8x4] = x264_pixel_##name2##_8x4##cpu;
+#define INIT7_NAME( name1, name2, cpu ) \
+ INIT5_NAME( name1, name2, cpu ) \
+ pixf->name1[PIXEL_4x8] = x264_pixel_##name2##_4x8##cpu;\
+ pixf->name1[PIXEL_4x4] = x264_pixel_##name2##_4x4##cpu;
+#define INIT2( name, cpu ) INIT2_NAME( name, name, cpu )
+#define INIT4( name, cpu ) INIT4_NAME( name, name, cpu )
+#define INIT5( name, cpu ) INIT5_NAME( name, name, cpu )
+#define INIT7( name, cpu ) INIT7_NAME( name, name, cpu )
#define INIT_ADS( cpu ) \
pixf->ads[PIXEL_16x16] = x264_pixel_ads4##cpu;\
pixf->ads[PIXEL_8x8] = x264_pixel_ads1##cpu;
INIT7( sad, );
+ INIT7_NAME( sad_aligned, sad, );
INIT7( sad_x3, );
INIT7( sad_x4, );
INIT7( ssd, );
INIT7( satd_x3, );
INIT7( satd_x4, );
INIT4( sa8d, );
+ INIT4( hadamard_ac, );
INIT_ADS( );
+ pixf->var[PIXEL_16x16] = x264_pixel_var_16x16;
+ pixf->var[PIXEL_8x8] = x264_pixel_var_8x8;
+
pixf->ssim_4x4x2_core = ssim_4x4x2_core;
pixf->ssim_end4 = ssim_end4;
if( cpu&X264_CPU_MMXEXT )
{
INIT7( sad, _mmxext );
+ INIT7_NAME( sad_aligned, sad, _mmxext );
INIT7( sad_x3, _mmxext );
INIT7( sad_x4, _mmxext );
INIT7( satd, _mmxext );
INIT7( satd_x3, _mmxext );
INIT7( satd_x4, _mmxext );
+ INIT4( hadamard_ac, _mmxext );
INIT_ADS( _mmxext );
-
+ pixf->var[PIXEL_16x16] = x264_pixel_var_16x16_mmxext;
+ pixf->var[PIXEL_8x8] = x264_pixel_var_8x8_mmxext;
#ifdef ARCH_X86
pixf->sa8d[PIXEL_16x16] = x264_pixel_sa8d_16x16_mmxext;
pixf->sa8d[PIXEL_8x8] = x264_pixel_sa8d_8x8_mmxext;
pixf->intra_sa8d_x3_8x8 = x264_intra_sa8d_x3_8x8_mmxext;
pixf->ssim_4x4x2_core = x264_pixel_ssim_4x4x2_core_mmxext;
- if( cpu&X264_CPU_CACHELINE_SPLIT )
+ if( cpu&X264_CPU_CACHELINE_32 )
{
- if( cpu&X264_CPU_CACHELINE_32 )
- {
- INIT5( sad, _cache32_mmxext );
- INIT4( sad_x3, _cache32_mmxext );
- INIT4( sad_x4, _cache32_mmxext );
- }
- else
- {
- INIT5( sad, _cache64_mmxext );
- INIT4( sad_x3, _cache64_mmxext );
- INIT4( sad_x4, _cache64_mmxext );
- }
+ INIT5( sad, _cache32_mmxext );
+ INIT4( sad_x3, _cache32_mmxext );
+ INIT4( sad_x4, _cache32_mmxext );
+ }
+ else if( cpu&X264_CPU_CACHELINE_64 )
+ {
+ INIT5( sad, _cache64_mmxext );
+ INIT4( sad_x3, _cache64_mmxext );
+ INIT4( sad_x4, _cache64_mmxext );
}
#else
- if( cpu&X264_CPU_CACHELINE_SPLIT )
+ if( cpu&X264_CPU_CACHELINE_64 )
{
pixf->sad[PIXEL_8x16] = x264_pixel_sad_8x16_cache64_mmxext;
pixf->sad[PIXEL_8x8] = x264_pixel_sad_8x8_cache64_mmxext;
}
#endif
pixf->intra_satd_x3_16x16 = x264_intra_satd_x3_16x16_mmxext;
+ pixf->intra_sad_x3_16x16 = x264_intra_sad_x3_16x16_mmxext;
pixf->intra_satd_x3_8x8c = x264_intra_satd_x3_8x8c_mmxext;
pixf->intra_satd_x3_4x4 = x264_intra_satd_x3_4x4_mmxext;
}
- // disable on AMD processors since it is slower
- if( (cpu&X264_CPU_SSE2) && !(cpu&X264_CPU_3DNOW) )
+ if( (cpu&X264_CPU_SSE2) && !(cpu&X264_CPU_SSE2_IS_SLOW) )
{
INIT2( sad, _sse2 );
INIT2( sad_x3, _sse2 );
INIT2( sad_x4, _sse2 );
- INIT5( satd, _sse2 );
- INIT5( satd_x3, _sse2 );
- INIT5( satd_x4, _sse2 );
+ if( !(cpu&X264_CPU_STACK_MOD4) )
+ {
+ INIT4( hadamard_ac, _sse2 );
+ }
INIT_ADS( _sse2 );
-
+ pixf->var[PIXEL_8x8] = x264_pixel_var_8x8_sse2;
+ pixf->intra_sad_x3_16x16 = x264_intra_sad_x3_16x16_sse2;
#ifdef ARCH_X86
- if( cpu&X264_CPU_CACHELINE_SPLIT )
+ if( cpu&X264_CPU_CACHELINE_64 )
{
INIT2( sad, _cache64_sse2 );
INIT2( sad_x3, _cache64_sse2 );
}
#endif
}
- // these are faster on both Intel and AMD
if( cpu&X264_CPU_SSE2 )
{
INIT5( ssd, _sse2 );
+ INIT5( satd, _sse2 );
+ INIT5( satd_x3, _sse2 );
+ INIT5( satd_x4, _sse2 );
+ INIT2_NAME( sad_aligned, sad, _sse2_aligned );
+ pixf->var[PIXEL_16x16] = x264_pixel_var_16x16_sse2;
pixf->ssim_4x4x2_core = x264_pixel_ssim_4x4x2_core_sse2;
pixf->ssim_end4 = x264_pixel_ssim_end4_sse2;
pixf->sa8d[PIXEL_16x16] = x264_pixel_sa8d_16x16_sse2;
#endif
}
-#ifdef HAVE_SSE3
- if( (cpu&X264_CPU_SSE3) && (cpu&X264_CPU_CACHELINE_SPLIT) )
+ if( (cpu&X264_CPU_SSE3) && (cpu&X264_CPU_CACHELINE_64) )
{
INIT2( sad, _sse3 );
INIT2( sad_x3, _sse3 );
INIT7( satd, _ssse3 );
INIT7( satd_x3, _ssse3 );
INIT7( satd_x4, _ssse3 );
+ if( !(cpu&X264_CPU_STACK_MOD4) )
+ {
+ INIT4( hadamard_ac, _ssse3 );
+ }
INIT_ADS( _ssse3 );
pixf->sa8d[PIXEL_16x16]= x264_pixel_sa8d_16x16_ssse3;
pixf->sa8d[PIXEL_8x8] = x264_pixel_sa8d_8x8_ssse3;
pixf->intra_satd_x3_16x16 = x264_intra_satd_x3_16x16_ssse3;
+ pixf->intra_sad_x3_16x16 = x264_intra_sad_x3_16x16_ssse3;
pixf->intra_satd_x3_8x8c = x264_intra_satd_x3_8x8c_ssse3;
pixf->intra_satd_x3_4x4 = x264_intra_satd_x3_4x4_ssse3;
#ifdef ARCH_X86_64
pixf->intra_sa8d_x3_8x8 = x264_intra_sa8d_x3_8x8_ssse3;
#endif
- if( cpu&X264_CPU_CACHELINE_SPLIT )
+ if( cpu&X264_CPU_CACHELINE_64 )
{
INIT2( sad, _cache64_ssse3 );
INIT2( sad_x3, _cache64_ssse3 );
INIT2( sad_x4, _cache64_ssse3 );
}
+ if( cpu&X264_CPU_PHADD_IS_FAST )
+ {
+ INIT5( satd, _ssse3_phadd );
+ INIT5( satd_x3, _ssse3_phadd );
+ INIT5( satd_x4, _ssse3_phadd );
+ }
}
-#endif //HAVE_SSE3
#endif //HAVE_MMX
#ifdef ARCH_PPC
projects / x264 / blobdiff