/***************************************************************************** * pixel.c: h264 encoder ***************************************************************************** * Copyright (C) 2003 Laurent Aimar * $Id: pixel.c,v 1.1 2004/06/03 19:27:07 fenrir Exp $ * * Authors: 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 * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the * GNU General Public License for more details. * * 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. *****************************************************************************/
#ifndef HAVE_STDINT_H
#define HAVE_STDINT_H
#endif
#ifdef HAVE_STDINT_H#include "stdint.h"#else#include <inttypes.h>#endif#include <stdlib.h>#include <string.h>#include <stdarg.h>#include "x264.h"#include "pixel.h"#include "clip1.h"#ifdef HAVE_MMXEXT#   include "i386/pixel.h"#endif#ifdef ARCH_PPC#   include "ppc/pixel.h"#endif/**************************************************************************** * pixel_sad_WxH ****************************************************************************/#define PIXEL_SAD_C( name, lx, ly ) \static int name( uint8_t *pix1, int i_stride_pix1,  \                 uint8_t *pix2, int i_stride_pix2 ) \{                                                   \    int i_sum = 0;                                  \    int x, y;                                       \    for( y = 0; y < ly; y++ )                       \    {                                               \        for( x = 0; x < lx; x++ )                   \        {                                           \            i_sum += abs( pix1[x] - pix2[x] );      \        }                                           \        pix1 += i_stride_pix1;                      \        pix2 += i_stride_pix2;                      \    }                                               \    return i_sum;                                   \}PIXEL_SAD_C( pixel_sad_16x16, 16, 16 )PIXEL_SAD_C( pixel_sad_16x8,  16,  8 )PIXEL_SAD_C( pixel_sad_8x16,   8, 16 )PIXEL_SAD_C( pixel_sad_8x8,    8,  8 )PIXEL_SAD_C( pixel_sad_8x4,    8,  4 )PIXEL_SAD_C( pixel_sad_4x8,    4,  8 )PIXEL_SAD_C( pixel_sad_4x4,    4,  4 )/**************************************************************************** * pixel_ssd_WxH ****************************************************************************/#define PIXEL_SSD_C( name, lx, ly ) \static int name( uint8_t *pix1, int i_stride_pix1,  \                 uint8_t *pix2, int i_stride_pix2 ) \{                                                   \    int i_sum = 0;                                  \    int x, y;                                       \    for( y = 0; y < ly; y++ )                       \    {                                               \        for( x = 0; x < lx; x++ )                   \        {                                           \            int d = pix1[x] - pix2[x];              \            i_sum += d*d;                           \        }                                           \        pix1 += i_stride_pix1;                      \        pix2 += i_stride_pix2;                      \    }                                               \    return i_sum;                                   \}PIXEL_SSD_C( pixel_ssd_16x16, 16, 16 )PIXEL_SSD_C( pixel_ssd_16x8,  16,  8 )PIXEL_SSD_C( pixel_ssd_8x16,   8, 16 )PIXEL_SSD_C( pixel_ssd_8x8,    8,  8 )PIXEL_SSD_C( pixel_ssd_8x4,    8,  4 )PIXEL_SSD_C( pixel_ssd_4x8,    4,  8 )PIXEL_SSD_C( pixel_ssd_4x4,    4,  4 )static void pixel_sub_4x4( int16_t diff[4][4], uint8_t *pix1, int i_pix1, uint8_t *pix2, int i_pix2 ){    int y, x;    for( y = 0; y < 4; y++ )    {        for( x = 0; x < 4; x++ )        {            diff[y][x] = pix1[x] - pix2[x];        }        pix1 += i_pix1;        pix2 += i_pix2;    }}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( y = 0; y < i_height; y += 4 )    {        for( x = 0; x < i_width; x += 4 )        {            int d;            pixel_sub_4x4( diff, &pix1[x], i_pix1, &pix2[x], i_pix2 );            for( d = 0; d < 4; d++ )            {                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;            }            for( d = 0; d < 4; d++ )            {                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 );            }        }        pix1 += 4 * i_pix1;        pix2 += 4 * i_pix2;    }    return i_satd / 2;}#define PIXEL_SATD_C( name, width, height ) \static int name( uint8_t *pix1, int i_stride_pix1, \                 uint8_t *pix2, int i_stride_pix2 ) \{ \    return pixel_satd_wxh( pix1, i_stride_pix1, pix2, i_stride_pix2, width, height ); \}PIXEL_SATD_C( pixel_satd_16x16, 16, 16 )PIXEL_SATD_C( pixel_satd_16x8,  16, 8 )PIXEL_SATD_C( pixel_satd_8x16,  8, 16 )PIXEL_SATD_C( pixel_satd_8x8,   8, 8 )PIXEL_SATD_C( pixel_satd_8x4,   8, 4 )PIXEL_SATD_C( pixel_satd_4x8,   4, 8 )PIXEL_SATD_C( pixel_satd_4x4,   4, 4 )static inline void pixel_avg_wxh( uint8_t *dst, int i_dst, uint8_t *src, int i_src, int width, int height ){    int x, y;    for( y = 0; y < height; y++ )    {        for( x = 0; x < width; x++ )        {            dst[x] = ( dst[x] + src[x] + 1 ) >> 1;        }        dst += i_dst;        src += i_src;    }}#define PIXEL_AVG_C( name, width, height ) \static void name( uint8_t *pix1, int i_stride_pix1, \                  uint8_t *pix2, int i_stride_pix2 ) \{ \    pixel_avg_wxh( pix1, i_stride_pix1, pix2, i_stride_pix2, width, height ); \}PIXEL_AVG_C( pixel_avg_16x16, 16, 16 )PIXEL_AVG_C( pixel_avg_16x8,  16, 8 )PIXEL_AVG_C( pixel_avg_8x16,  8, 16 )PIXEL_AVG_C( pixel_avg_8x8,   8, 8 )PIXEL_AVG_C( pixel_avg_8x4,   8, 4 )PIXEL_AVG_C( pixel_avg_4x8,   4, 8 )PIXEL_AVG_C( pixel_avg_4x4,   4, 4 )PIXEL_AVG_C( pixel_avg_4x2,   4, 2 )PIXEL_AVG_C( pixel_avg_2x4,   2, 4 )PIXEL_AVG_C( pixel_avg_2x2,   2, 2 )/* Implicit weighted bipred only: * assumes log2_denom = 5, offset = 0, weight1 + weight2 = 64 */#define op_scale2(x) dst[x] = x264_clip_uint8( (dst[x]*i_weight1 + src[x]*i_weight2 + (1<<5)) >> 6 )static inline void pixel_avg_weight_wxh( uint8_t *dst, int i_dst, uint8_t *src, int i_src, int width, int height, int i_weight1 ){    int y;    const int i_weight2 = 64 - i_weight1;    for(y=0; y<height; y++, dst += i_dst, src += i_src){        op_scale2(0);        op_scale2(1);        if(width==2) continue;        op_scale2(2);        op_scale2(3);        if(width==4) continue;        op_scale2(4);        op_scale2(5);        op_scale2(6);        op_scale2(7);        if(width==8) continue;        op_scale2(8);        op_scale2(9);        op_scale2(10);        op_scale2(11);        op_scale2(12);        op_scale2(13);        op_scale2(14);        op_scale2(15);    }}#define PIXEL_AVG_WEIGHT_C( width, height ) \static void pixel_avg_weight_##width##x##height( \                uint8_t *pix1, int i_stride_pix1, \                uint8_t *pix2, int i_stride_pix2, int i_weight1 ) \{ \    pixel_avg_weight_wxh( pix1, i_stride_pix1, pix2, i_stride_pix2, width, height, i_weight1 ); \}PIXEL_AVG_WEIGHT_C(16,16)PIXEL_AVG_WEIGHT_C(16,8)PIXEL_AVG_WEIGHT_C(8,16)PIXEL_AVG_WEIGHT_C(8,8)PIXEL_AVG_WEIGHT_C(8,4)PIXEL_AVG_WEIGHT_C(4,8)PIXEL_AVG_WEIGHT_C(4,4)PIXEL_AVG_WEIGHT_C(4,2)PIXEL_AVG_WEIGHT_C(2,4)PIXEL_AVG_WEIGHT_C(2,2)#undef op_scale2#undef PIXEL_AVG_WEIGHT_C/**************************************************************************** * x264_pixel_init: ****************************************************************************/void x264_pixel_init( int cpu, x264_pixel_function_t *pixf ){    pixf->sad[PIXEL_16x16] = pixel_sad_16x16;    pixf->sad[PIXEL_16x8]  = pixel_sad_16x8;    pixf->sad[PIXEL_8x16]  = pixel_sad_8x16;    pixf->sad[PIXEL_8x8]   = pixel_sad_8x8;    pixf->sad[PIXEL_8x4]   = pixel_sad_8x4;    pixf->sad[PIXEL_4x8]   = pixel_sad_4x8;    pixf->sad[PIXEL_4x4]   = pixel_sad_4x4;    pixf->ssd[PIXEL_16x16] = pixel_ssd_16x16;    pixf->ssd[PIXEL_16x8]  = pixel_ssd_16x8;    pixf->ssd[PIXEL_8x16]  = pixel_ssd_8x16;    pixf->ssd[PIXEL_8x8]   = pixel_ssd_8x8;    pixf->ssd[PIXEL_8x4]   = pixel_ssd_8x4;    pixf->ssd[PIXEL_4x8]   = pixel_ssd_4x8;    pixf->ssd[PIXEL_4x4]   = pixel_ssd_4x4;    pixf->satd[PIXEL_16x16]= pixel_satd_16x16;    pixf->satd[PIXEL_16x8] = pixel_satd_16x8;    pixf->satd[PIXEL_8x16] = pixel_satd_8x16;    pixf->satd[PIXEL_8x8]  = pixel_satd_8x8;    pixf->satd[PIXEL_8x4]  = pixel_satd_8x4;    pixf->satd[PIXEL_4x8]  = pixel_satd_4x8;    pixf->satd[PIXEL_4x4]  = pixel_satd_4x4;    pixf->avg[PIXEL_16x16]= pixel_avg_16x16;    pixf->avg[PIXEL_16x8] = pixel_avg_16x8;    pixf->avg[PIXEL_8x16] = pixel_avg_8x16;    pixf->avg[PIXEL_8x8]  = pixel_avg_8x8;    pixf->avg[PIXEL_8x4]  = pixel_avg_8x4;    pixf->avg[PIXEL_4x8]  = pixel_avg_4x8;    pixf->avg[PIXEL_4x4]  = pixel_avg_4x4;    pixf->avg[PIXEL_4x2]  = pixel_avg_4x2;    pixf->avg[PIXEL_2x4]  = pixel_avg_2x4;    pixf->avg[PIXEL_2x2]  = pixel_avg_2x2;        pixf->avg_weight[PIXEL_16x16]= pixel_avg_weight_16x16;    pixf->avg_weight[PIXEL_16x8] = pixel_avg_weight_16x8;    pixf->avg_weight[PIXEL_8x16] = pixel_avg_weight_8x16;    pixf->avg_weight[PIXEL_8x8]  = pixel_avg_weight_8x8;    pixf->avg_weight[PIXEL_8x4]  = pixel_avg_weight_8x4;    pixf->avg_weight[PIXEL_4x8]  = pixel_avg_weight_4x8;    pixf->avg_weight[PIXEL_4x4]  = pixel_avg_weight_4x4;    pixf->avg_weight[PIXEL_4x2]  = pixel_avg_weight_4x2;    pixf->avg_weight[PIXEL_2x4]  = pixel_avg_weight_2x4;    pixf->avg_weight[PIXEL_2x2]  = pixel_avg_weight_2x2;#ifdef HAVE_MMXEXT    if( cpu&X264_CPU_MMXEXT )    {        pixf->sad[PIXEL_16x16] = x264_pixel_sad_16x16_mmxext;        pixf->sad[PIXEL_16x8 ] = x264_pixel_sad_16x8_mmxext;        pixf->sad[PIXEL_8x16 ] = x264_pixel_sad_8x16_mmxext;        pixf->sad[PIXEL_8x8  ] = x264_pixel_sad_8x8_mmxext;        pixf->sad[PIXEL_8x4  ] = x264_pixel_sad_8x4_mmxext;        pixf->sad[PIXEL_4x8  ] = x264_pixel_sad_4x8_mmxext;        pixf->sad[PIXEL_4x4]   = x264_pixel_sad_4x4_mmxext;        pixf->ssd[PIXEL_16x16] = x264_pixel_ssd_16x16_mmxext;        pixf->ssd[PIXEL_16x8]  = x264_pixel_ssd_16x8_mmxext;        pixf->ssd[PIXEL_8x16]  = x264_pixel_ssd_8x16_mmxext;        pixf->ssd[PIXEL_8x8]   = x264_pixel_ssd_8x8_mmxext;        pixf->ssd[PIXEL_8x4]   = x264_pixel_ssd_8x4_mmxext;        pixf->ssd[PIXEL_4x8]   = x264_pixel_ssd_4x8_mmxext;        pixf->ssd[PIXEL_4x4]   = x264_pixel_ssd_4x4_mmxext;          pixf->satd[PIXEL_16x16]= x264_pixel_satd_16x16_mmxext;        pixf->satd[PIXEL_16x8] = x264_pixel_satd_16x8_mmxext;        pixf->satd[PIXEL_8x16] = x264_pixel_satd_8x16_mmxext;        pixf->satd[PIXEL_8x8]  = x264_pixel_satd_8x8_mmxext;        pixf->satd[PIXEL_8x4]  = x264_pixel_satd_8x4_mmxext;        pixf->satd[PIXEL_4x8]  = x264_pixel_satd_4x8_mmxext;        pixf->satd[PIXEL_4x4]  = x264_pixel_satd_4x4_mmxext;    }#endif#ifdef ARCH_PPC    if( cpu&X264_CPU_ALTIVEC )    {        x264_pixel_altivec_init( pixf );    }#endif}