diff options
Diffstat (limited to 'libavcodec/x86/vp6dsp_sse2.c')
| -rw-r--r-- | libavcodec/x86/vp6dsp_sse2.c | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/libavcodec/x86/vp6dsp_sse2.c b/libavcodec/x86/vp6dsp_sse2.c new file mode 100644 index 0000000000..c72a0cacb8 --- /dev/null +++ b/libavcodec/x86/vp6dsp_sse2.c @@ -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"); +} |