mirror of https://github.com/FFmpeg/FFmpeg.git
original patch by Zuxy Meng zuxy.meng _at_ gmail _dot_ com Originally committed as revision 17195 to svn://svn.ffmpeg.org/ffmpeg/trunkpull/126/head
parent
6af3c226c3
commit
ecb24904fe
4 changed files with 136 additions and 3 deletions
@ -0,0 +1,98 @@ |
||||
/**
|
||||
* @file libavcodec/x86/vp6dsp_mmx.c |
||||
* SSE2-optimized functions for the VP6 decoder |
||||
* |
||||
* Copyright (C) 2009 Zuxy Meng <zuxy.meng@gmail.com> |
||||
* |
||||
* 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 "libavutil/x86_cpu.h" |
||||
#include "libavcodec/dsputil.h" |
||||
#include "dsputil_mmx.h" |
||||
#include "vp6dsp_sse2.h" |
||||
|
||||
#define DIAG4_SSE2(in1,in2,in3,in4) \ |
||||
"movq "#in1"(%0), %%xmm0 \n\t" \
|
||||
"movq "#in2"(%0), %%xmm1 \n\t" \
|
||||
"punpcklbw %%xmm7, %%xmm0 \n\t" \
|
||||
"punpcklbw %%xmm7, %%xmm1 \n\t" \
|
||||
"pmullw %%xmm4, %%xmm0 \n\t" /* src[x-8 ] * biweight [0] */ \
|
||||
"pmullw %%xmm5, %%xmm1 \n\t" /* src[x ] * biweight [1] */ \
|
||||
"paddw %%xmm1, %%xmm0 \n\t" \
|
||||
"movq "#in3"(%0), %%xmm1 \n\t" \
|
||||
"movq "#in4"(%0), %%xmm2 \n\t" \
|
||||
"punpcklbw %%xmm7, %%xmm1 \n\t" \
|
||||
"punpcklbw %%xmm7, %%xmm2 \n\t" \
|
||||
"pmullw %%xmm6, %%xmm1 \n\t" /* src[x+8 ] * biweight [2] */ \
|
||||
"pmullw %%xmm3, %%xmm2 \n\t" /* src[x+16] * biweight [3] */ \
|
||||
"paddw %%xmm2, %%xmm1 \n\t" \
|
||||
"paddsw %%xmm1, %%xmm0 \n\t" \
|
||||
"paddsw "MANGLE(ff_pw_64)", %%xmm0 \n\t" /* Add 64 */ \
|
||||
"psraw $7, %%xmm0 \n\t" \
|
||||
"packuswb %%xmm0, %%xmm0 \n\t" \
|
||||
"movq %%xmm0, (%1) \n\t" \
|
||||
|
||||
void ff_vp6_filter_diag4_sse2(uint8_t *dst, uint8_t *src, int stride, |
||||
const int16_t *h_weights,const int16_t *v_weights) |
||||
{ |
||||
uint8_t tmp[8*11], *t = tmp; |
||||
src -= stride; |
||||
|
||||
__asm__ volatile( |
||||
"pxor %%xmm7, %%xmm7 \n\t" |
||||
"movq %4, %%xmm3 \n\t" |
||||
"pshuflw $0, %%xmm3, %%xmm4 \n\t" |
||||
"punpcklqdq %%xmm4, %%xmm4 \n\t" |
||||
"pshuflw $85, %%xmm3, %%xmm5 \n\t" |
||||
"punpcklqdq %%xmm5, %%xmm5 \n\t" |
||||
"pshuflw $170, %%xmm3, %%xmm6 \n\t" |
||||
"punpcklqdq %%xmm6, %%xmm6 \n\t" |
||||
"pshuflw $255, %%xmm3, %%xmm3 \n\t" |
||||
"punpcklqdq %%xmm3, %%xmm3 \n\t" |
||||
"1: \n\t" |
||||
DIAG4_SSE2(-1,0,1,2) |
||||
"add $8, %1 \n\t" |
||||
"add %2, %0 \n\t" |
||||
"decl %3 \n\t" |
||||
"jnz 1b \n\t" |
||||
: "+r"(src), "+r"(t) |
||||
: "g"((x86_reg)stride), "r"(11), "m"(*(const int64_t*)h_weights) |
||||
: "memory"); |
||||
|
||||
t = tmp + 8; |
||||
|
||||
__asm__ volatile( |
||||
"movq %4, %%xmm3 \n\t" |
||||
"pshuflw $0, %%xmm3, %%xmm4 \n\t" |
||||
"punpcklqdq %%xmm4, %%xmm4 \n\t" |
||||
"pshuflw $85, %%xmm3, %%xmm5 \n\t" |
||||
"punpcklqdq %%xmm5, %%xmm5 \n\t" |
||||
"pshuflw $170, %%xmm3, %%xmm6 \n\t" |
||||
"punpcklqdq %%xmm6, %%xmm6 \n\t" |
||||
"pshuflw $255, %%xmm3, %%xmm3 \n\t" |
||||
"punpcklqdq %%xmm3, %%xmm3 \n\t" |
||||
"1: \n\t" |
||||
DIAG4_SSE2(-8,0,8,16) |
||||
"add $8, %0 \n\t" |
||||
"add %2, %1 \n\t" |
||||
"decl %3 \n\t" |
||||
"jnz 1b \n\t" |
||||
: "+r"(t), "+r"(dst) |
||||
: "g"((x86_reg)stride), "r"(8), "m"(*(const int64_t*)v_weights) |
||||
: "memory"); |
||||
} |
@ -0,0 +1,30 @@ |
||||
/*
|
||||
* vp6dsp SSE2 function declarations |
||||
* Copyright (c) 2009 Zuxy Meng <zuxy.meng@gmail.com> |
||||
* |
||||
* 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 |
||||
*/ |
||||
|
||||
#ifndef AVCODEC_X86_VP6DSP_SSE2_H |
||||
#define AVCODEC_X86_VP6DSP_SSE2_H |
||||
|
||||
#include <stdint.h> |
||||
|
||||
void ff_vp6_filter_diag4_sse2(uint8_t *dst, uint8_t *src, int stride, |
||||
const int16_t *h_weights,const int16_t *v_weights); |
||||
|
||||
#endif /* AVCODEC_X86_VP6DSP_SSE2_H */ |
Loading…
Reference in new issue