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h264chroma_template.c
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h264chroma_template.c
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/*
* Copyright (c) 2000, 2001 Fabrice Bellard
* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stddef.h>
#include "libavutil/avassert.h"
#include "bit_depth_template.c"
#define H264_CHROMA_MC(OPNAME, OP)\
static void FUNCC(OPNAME ## h264_chroma_mc1)(uint8_t *_dst /*align 8*/, uint8_t *_src /*align 1*/, ptrdiff_t stride, int h, int x, int y){\
pixel *dst = (pixel*)_dst;\
pixel *src = (pixel*)_src;\
const int A=(8-x)*(8-y);\
const int B=( x)*(8-y);\
const int C=(8-x)*( y);\
const int D=( x)*( y);\
int i;\
stride >>= sizeof(pixel)-1;\
\
av_assert2(x<8 && y<8 && x>=0 && y>=0);\
\
if(D){\
for(i=0; i<h; i++){\
OP(dst[0], (A*src[0] + B*src[1] + C*src[stride+0] + D*src[stride+1]));\
dst+= stride;\
src+= stride;\
}\
} else if (B + C) {\
const int E= B+C;\
const int step= C ? stride : 1;\
for(i=0; i<h; i++){\
OP(dst[0], (A*src[0] + E*src[step+0]));\
dst+= stride;\
src+= stride;\
}\
} else {\
for(i=0; i<h; i++){\
OP(dst[0], (A*src[0]));\
dst+= stride;\
src+= stride;\
}\
}\
}\
static void FUNCC(OPNAME ## h264_chroma_mc2)(uint8_t *_dst /*align 8*/, uint8_t *_src /*align 1*/, ptrdiff_t stride, int h, int x, int y)\
{\
pixel *dst = (pixel*)_dst;\
pixel *src = (pixel*)_src;\
const int A=(8-x)*(8-y);\
const int B=( x)*(8-y);\
const int C=(8-x)*( y);\
const int D=( x)*( y);\
int i;\
stride >>= sizeof(pixel)-1;\
\
av_assert2(x<8 && y<8 && x>=0 && y>=0);\
\
if(D){\
for(i=0; i<h; i++){\
OP(dst[0], (A*src[0] + B*src[1] + C*src[stride+0] + D*src[stride+1]));\
OP(dst[1], (A*src[1] + B*src[2] + C*src[stride+1] + D*src[stride+2]));\
dst+= stride;\
src+= stride;\
}\
} else if (B + C) {\
const int E= B+C;\
const ptrdiff_t step = C ? stride : 1;\
for(i=0; i<h; i++){\
OP(dst[0], (A*src[0] + E*src[step+0]));\
OP(dst[1], (A*src[1] + E*src[step+1]));\
dst+= stride;\
src+= stride;\
}\
} else {\
for ( i = 0; i < h; i++){\
OP(dst[0], A * src[0]);\
OP(dst[1], A * src[1]);\
dst += stride;\
src += stride;\
}\
}\
}\
\
static void FUNCC(OPNAME ## h264_chroma_mc4)(uint8_t *_dst /*align 8*/, uint8_t *_src /*align 1*/, ptrdiff_t stride, int h, int x, int y)\
{\
pixel *dst = (pixel*)_dst;\
pixel *src = (pixel*)_src;\
const int A=(8-x)*(8-y);\
const int B=( x)*(8-y);\
const int C=(8-x)*( y);\
const int D=( x)*( y);\
int i;\
stride >>= sizeof(pixel)-1;\
\
av_assert2(x<8 && y<8 && x>=0 && y>=0);\
\
if(D){\
for(i=0; i<h; i++){\
OP(dst[0], (A*src[0] + B*src[1] + C*src[stride+0] + D*src[stride+1]));\
OP(dst[1], (A*src[1] + B*src[2] + C*src[stride+1] + D*src[stride+2]));\
OP(dst[2], (A*src[2] + B*src[3] + C*src[stride+2] + D*src[stride+3]));\
OP(dst[3], (A*src[3] + B*src[4] + C*src[stride+3] + D*src[stride+4]));\
dst+= stride;\
src+= stride;\
}\
} else if (B + C) {\
const int E= B+C;\
const ptrdiff_t step = C ? stride : 1;\
for(i=0; i<h; i++){\
OP(dst[0], (A*src[0] + E*src[step+0]));\
OP(dst[1], (A*src[1] + E*src[step+1]));\
OP(dst[2], (A*src[2] + E*src[step+2]));\
OP(dst[3], (A*src[3] + E*src[step+3]));\
dst+= stride;\
src+= stride;\
}\
} else {\
for ( i = 0; i < h; i++){\
OP(dst[0], A * src[0]);\
OP(dst[1], A * src[1]);\
OP(dst[2], A * src[2]);\
OP(dst[3], A * src[3]);\
dst += stride;\
src += stride;\
}\
}\
}\
\
static void FUNCC(OPNAME ## h264_chroma_mc8)(uint8_t *_dst /*align 8*/, uint8_t *_src /*align 1*/, ptrdiff_t stride, int h, int x, int y)\
{\
pixel *dst = (pixel*)_dst;\
pixel *src = (pixel*)_src;\
const int A=(8-x)*(8-y);\
const int B=( x)*(8-y);\
const int C=(8-x)*( y);\
const int D=( x)*( y);\
int i;\
stride >>= sizeof(pixel)-1;\
\
av_assert2(x<8 && y<8 && x>=0 && y>=0);\
\
if(D){\
for(i=0; i<h; i++){\
OP(dst[0], (A*src[0] + B*src[1] + C*src[stride+0] + D*src[stride+1]));\
OP(dst[1], (A*src[1] + B*src[2] + C*src[stride+1] + D*src[stride+2]));\
OP(dst[2], (A*src[2] + B*src[3] + C*src[stride+2] + D*src[stride+3]));\
OP(dst[3], (A*src[3] + B*src[4] + C*src[stride+3] + D*src[stride+4]));\
OP(dst[4], (A*src[4] + B*src[5] + C*src[stride+4] + D*src[stride+5]));\
OP(dst[5], (A*src[5] + B*src[6] + C*src[stride+5] + D*src[stride+6]));\
OP(dst[6], (A*src[6] + B*src[7] + C*src[stride+6] + D*src[stride+7]));\
OP(dst[7], (A*src[7] + B*src[8] + C*src[stride+7] + D*src[stride+8]));\
dst+= stride;\
src+= stride;\
}\
} else if (B + C) {\
const int E= B+C;\
const ptrdiff_t step = C ? stride : 1;\
for(i=0; i<h; i++){\
OP(dst[0], (A*src[0] + E*src[step+0]));\
OP(dst[1], (A*src[1] + E*src[step+1]));\
OP(dst[2], (A*src[2] + E*src[step+2]));\
OP(dst[3], (A*src[3] + E*src[step+3]));\
OP(dst[4], (A*src[4] + E*src[step+4]));\
OP(dst[5], (A*src[5] + E*src[step+5]));\
OP(dst[6], (A*src[6] + E*src[step+6]));\
OP(dst[7], (A*src[7] + E*src[step+7]));\
dst+= stride;\
src+= stride;\
}\
} else {\
for ( i = 0; i < h; i++){\
OP(dst[0], A * src[0]);\
OP(dst[1], A * src[1]);\
OP(dst[2], A * src[2]);\
OP(dst[3], A * src[3]);\
OP(dst[4], A * src[4]);\
OP(dst[5], A * src[5]);\
OP(dst[6], A * src[6]);\
OP(dst[7], A * src[7]);\
dst += stride;\
src += stride;\
}\
}\
}
#define op_avg(a, b) a = (((a)+(((b) + 32)>>6)+1)>>1)
#define op_put(a, b) a = (((b) + 32)>>6)
H264_CHROMA_MC(put_ , op_put)
H264_CHROMA_MC(avg_ , op_avg)
#undef op_avg
#undef op_put