/***************************************************************************** * predict.c: h264 encoder ***************************************************************************** * Copyright (C) 2003 Laurent Aimar * $Id: predict.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. *****************************************************************************/#include "common/common.h"#include "common/clip1.h"#include "predict.h"#include "pixel.h"extern void predict_16x16_v_mmx( uint8_t *src );extern void predict_16x16_dc_core_mmxext( uint8_t *src, int i_dc_left );extern void predict_16x16_dc_top_mmxext( uint8_t *src );extern void predict_16x16_p_core_mmxext( uint8_t *src, int i00, int b, int c );extern void predict_8x8c_p_core_mmxext( uint8_t *src, int i00, int b, int c );extern void predict_8x8c_dc_core_mmxext( uint8_t *src, int s2, int s3 );extern void predict_8x8c_v_mmx( uint8_t *src );extern void predict_8x8_v_mmxext( uint8_t *src, uint8_t edge[33] );extern void predict_8x8_dc_mmxext( uint8_t *src, uint8_t edge[33] );extern void predict_8x8_dc_top_mmxext( uint8_t *src, uint8_t edge[33] );extern void predict_8x8_dc_left_mmxext( uint8_t *src, uint8_t edge[33] );extern void predict_8x8_ddl_mmxext( uint8_t *src, uint8_t edge[33] );extern void predict_8x8_ddr_mmxext( uint8_t *src, uint8_t edge[33] );extern void predict_8x8_ddl_sse2( uint8_t *src, uint8_t edge[33] );extern void predict_8x8_ddr_sse2( uint8_t *src, uint8_t edge[33] );extern void predict_8x8_vl_sse2( uint8_t *src, uint8_t edge[33] );extern void predict_8x8_vr_core_mmxext( uint8_t *src, uint8_t edge[33] );extern void predict_4x4_ddl_mmxext( uint8_t *src );extern void predict_4x4_vl_mmxext( uint8_t *src );static void predict_16x16_p( uint8_t *src ){    int a, b, c, i;    int H = 0;    int V = 0;    int i00;    for( i = 1; i <= 8; i++ )    {        H += i * ( src[7+i - FDEC_STRIDE ]  - src[7-i - FDEC_STRIDE ] );        V += i * ( src[(7+i)*FDEC_STRIDE -1] - src[(7-i)*FDEC_STRIDE -1] );    }    a = 16 * ( src[15*FDEC_STRIDE -1] + src[15 - FDEC_STRIDE] );    b = ( 5 * H + 32 ) >> 6;    c = ( 5 * V + 32 ) >> 6;    i00 = a - b * 7 - c * 7 + 16;    predict_16x16_p_core_mmxext( src, i00, b, c );}static void predict_8x8c_p( uint8_t *src ){    int a, b, c, i;    int H = 0;    int V = 0;    int i00;    for( i = 1; i <= 4; i++ )    {        H += i * ( src[3+i - FDEC_STRIDE] - src[3-i - FDEC_STRIDE] );        V += i * ( src[(3+i)*FDEC_STRIDE -1] - src[(3-i)*FDEC_STRIDE -1] );    }    a = 16 * ( src[7*FDEC_STRIDE -1] + src[7 - FDEC_STRIDE] );    b = ( 17 * H + 16 ) >> 5;    c = ( 17 * V + 16 ) >> 5;    i00 = a -3*b -3*c + 16;    predict_8x8c_p_core_mmxext( src, i00, b, c );}static void predict_16x16_dc( uint8_t *src ){    uint32_t dc=16;    int i;    for( i = 0; i < 16; i+=2 )    {        dc += src[-1 + i * FDEC_STRIDE];        dc += src[-1 + (i+1) * FDEC_STRIDE];    }    predict_16x16_dc_core_mmxext( src, dc );}static void predict_8x8c_dc( uint8_t *src ){    int s2 = 4       + src[-1 + 0*FDEC_STRIDE]       + src[-1 + 1*FDEC_STRIDE]       + src[-1 + 2*FDEC_STRIDE]       + src[-1 + 3*FDEC_STRIDE];    int s3 = 2       + src[-1 + 4*FDEC_STRIDE]       + src[-1 + 5*FDEC_STRIDE]       + src[-1 + 6*FDEC_STRIDE]       + src[-1 + 7*FDEC_STRIDE];    predict_8x8c_dc_core_mmxext( src, s2, s3 );}#ifdef ARCH_X86_64static void predict_16x16_h( uint8_t *src ){    int y;    for( y = 0; y < 16; y++ )    {        const uint64_t v = 0x0101010101010101ULL * src[-1];        uint64_t *p = (uint64_t*)src;        p[0] = p[1] = v;        src += FDEC_STRIDE;    }}static void predict_8x8c_h( uint8_t *src ){    int y;    for( y = 0; y < 8; y++ )    {        *(uint64_t*)src = 0x0101010101010101ULL * src[-1];        src += FDEC_STRIDE;    }}static void predict_16x16_dc_left( uint8_t *src ){    uint32_t s = 0;    uint64_t dc;     int y;        for( y = 0; y < 16; y++ )    {        s += src[-1 + y * FDEC_STRIDE];    }       dc = (( s + 8 ) >> 4) * 0x0101010101010101ULL;        for( y = 0; y < 16; y++ )    {        uint64_t *p = (uint64_t*)src;        p[0] = p[1] = dc;        src += FDEC_STRIDE;    }}static void predict_8x8c_dc_left( uint8_t *src ){    int y;    uint32_t s0 = 0, s1 = 0;    uint64_t dc0, dc1;    for( y = 0; y < 4; y++ )    {        s0 += src[y * FDEC_STRIDE     - 1];        s1 += src[(y+4) * FDEC_STRIDE - 1];    }    dc0 = (( s0 + 2 ) >> 2) * 0x0101010101010101ULL;    dc1 = (( s1 + 2 ) >> 2) * 0x0101010101010101ULL;    for( y = 0; y < 4; y++ )    {        *(uint64_t*)src = dc0;        src += FDEC_STRIDE;    }    for( y = 0; y < 4; y++ )    {        *(uint64_t*)src = dc1;        src += FDEC_STRIDE;    }}static void predict_8x8c_dc_top( uint8_t *src ){    int y, x;    uint32_t s0 = 0, s1 = 0;    uint64_t dc;    for( x = 0; x < 4; x++ )    {        s0 += src[x     - FDEC_STRIDE];        s1 += src[x + 4 - FDEC_STRIDE];    }    dc = (( s0 + 2 ) >> 2) * 0x01010101       + (( s1 + 2 ) >> 2) * 0x0101010100000000ULL;    for( y = 0; y < 8; y++ )    {        *(uint64_t*)src = dc;        src += FDEC_STRIDE;    }}#endif/* Diagonals */#define PREDICT_4x4_LOAD_LEFT \    const int l0 = src[-1+0*FDEC_STRIDE];   \    const int l1 = src[-1+1*FDEC_STRIDE];   \    const int l2 = src[-1+2*FDEC_STRIDE];   \    UNUSED const int l3 = src[-1+3*FDEC_STRIDE];#define PREDICT_4x4_LOAD_TOP \    const int t0 = src[0-1*FDEC_STRIDE];   \    const int t1 = src[1-1*FDEC_STRIDE];   \    const int t2 = src[2-1*FDEC_STRIDE];   \    UNUSED const int t3 = src[3-1*FDEC_STRIDE];#define PREDICT_4x4_LOAD_TOP_RIGHT \    const int t4 = src[4-1*FDEC_STRIDE];   \    const int t5 = src[5-1*FDEC_STRIDE];   \    const int t6 = src[6-1*FDEC_STRIDE];   \    UNUSED const int t7 = src[7-1*FDEC_STRIDE];#define F1(a,b)   (((a)+(b)+1)>>1)#define F2(a,b,c) (((a)+2*(b)+(c)+2)>>2)#ifdef ARCH_X86_64 // slower on x86#if 0static void predict_4x4_ddl( uint8_t *src ){    PREDICT_4x4_LOAD_TOP    PREDICT_4x4_LOAD_TOP_RIGHT    uint32_t vec = (F2(t3,t4,t5)<< 0)                 + (F2(t4,t5,t6)<< 8)                 + (F2(t5,t6,t7)<<16)                 + (F2(t6,t7,t7)<<24);    *(uint32_t*)&src[3*FDEC_STRIDE] = vec;    *(uint32_t*)&src[2*FDEC_STRIDE] = vec = (vec<<8) + F2(t2,t3,t4);    *(uint32_t*)&src[1*FDEC_STRIDE] = vec = (vec<<8) + F2(t1,t2,t3);    *(uint32_t*)&src[0*FDEC_STRIDE] = vec = (vec<<8) + F2(t0,t1,t2);}#endifstatic void predict_4x4_ddr( uint8_t *src ){    const int lt = src[-1-FDEC_STRIDE];    PREDICT_4x4_LOAD_LEFT    PREDICT_4x4_LOAD_TOP    uint32_t vec = (F2(l0,lt,t0)<< 0)                 + (F2(lt,t0,t1)<< 8)                 + (F2(t0,t1,t2)<<16)                 + (F2(t1,t2,t3)<<24);    *(uint32_t*)&src[0*FDEC_STRIDE] = vec;    *(uint32_t*)&src[1*FDEC_STRIDE] = vec = (vec<<8) + F2(l1,l0,lt);    *(uint32_t*)&src[2*FDEC_STRIDE] = vec = (vec<<8) + F2(l2,l1,l0);    *(uint32_t*)&src[3*FDEC_STRIDE] = vec = (vec<<8) + F2(l3,l2,l1);}static void predict_4x4_vr( uint8_t *src ){    const int lt = src[-1-FDEC_STRIDE];    PREDICT_4x4_LOAD_LEFT    PREDICT_4x4_LOAD_TOP    const int ltt0 = lt + t0 + 1;    const int t0t1 = t0 + t1 + 1;