1
0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-02 03:06:28 +02:00
FFmpeg/libavcodec/x86/rv40dsp_mmx.c
Mathieu Velten 21ff7689da Use H264 MMX chroma functions to accelerate RV40 decoding.
Patch by Mathieu Velten (matmaul A gmail)

Originally committed as revision 16419 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-01-04 01:36:11 +00:00

62 lines
3.1 KiB
C

/*
* Copyright (c) 2008 Konstantin Shishkov, Mathieu Velten
*
* MMX-optimized DSP functions for RV40, based on H.264 optimizations by
* Michael Niedermayer and Loren Merritt
*
* 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 "dsputil_mmx.h"
/* bias interleaved with bias div 8, use p+1 to access bias div 8 */
DECLARE_ALIGNED_8(static const uint64_t, rv40_bias_reg[4][8]) = {
{ 0x0000000000000000ULL, 0x0000000000000000ULL, 0x0010001000100010ULL, 0x0002000200020002ULL,
0x0020002000200020ULL, 0x0004000400040004ULL, 0x0010001000100010ULL, 0x0002000200020002ULL },
{ 0x0020002000200020ULL, 0x0004000400040004ULL, 0x001C001C001C001CULL, 0x0003000300030003ULL,
0x0020002000200020ULL, 0x0004000400040004ULL, 0x001C001C001C001CULL, 0x0003000300030003ULL },
{ 0x0000000000000000ULL, 0x0000000000000000ULL, 0x0020002000200020ULL, 0x0004000400040004ULL,
0x0010001000100010ULL, 0x0002000200020002ULL, 0x0020002000200020ULL, 0x0004000400040004ULL },
{ 0x0020002000200020ULL, 0x0004000400040004ULL, 0x001C001C001C001CULL, 0x0003000300030003ULL,
0x0020002000200020ULL, 0x0004000400040004ULL, 0x001C001C001C001CULL, 0x0003000300030003ULL }
};
static void put_rv40_chroma_mc8_mmx(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int stride, int h, int x, int y)
{
put_h264_chroma_generic_mc8_mmx(dst, src, stride, h, x, y, &rv40_bias_reg[y>>1][x&(~1)]);
}
static void put_rv40_chroma_mc4_mmx(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int stride, int h, int x, int y)
{
put_h264_chroma_generic_mc4_mmx(dst, src, stride, h, x, y, &rv40_bias_reg[y>>1][x&(~1)]);
}
static void avg_rv40_chroma_mc8_mmx2(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int stride, int h, int x, int y)
{
avg_h264_chroma_generic_mc8_mmx2(dst, src, stride, h, x, y, &rv40_bias_reg[y>>1][x&(~1)]);
}
static void avg_rv40_chroma_mc4_mmx2(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int stride, int h, int x, int y)
{
avg_h264_chroma_generic_mc4_mmx2(dst, src, stride, h, x, y, &rv40_bias_reg[y>>1][x&(~1)]);
}
static void avg_rv40_chroma_mc8_3dnow(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int stride, int h, int x, int y)
{
avg_h264_chroma_generic_mc8_3dnow(dst, src, stride, h, x, y, &rv40_bias_reg[y>>1][x&(~1)]);
}
static void avg_rv40_chroma_mc4_3dnow(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int stride, int h, int x, int y)
{
avg_h264_chroma_generic_mc4_3dnow(dst, src, stride, h, x, y, &rv40_bias_reg[y>>1][x&(~1)]);
}