mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
60 lines
2.1 KiB
60 lines
2.1 KiB
/* |
|
* Copyright (c) 2012-2014 Christophe Gisquet <christophe.gisquet@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_DCA_H |
|
#define AVCODEC_X86_DCA_H |
|
|
|
#include "config.h" |
|
|
|
#if ARCH_X86_64 && HAVE_SSE2_INLINE |
|
# include "libavutil/x86/asm.h" |
|
# include "libavutil/mem.h" |
|
#include "libavcodec/dcadsp.h" |
|
|
|
# define int8x8_fmul_int32 int8x8_fmul_int32 |
|
static inline void int8x8_fmul_int32(av_unused DCADSPContext *dsp, |
|
float *dst, const int8_t *src, int scale) |
|
{ |
|
DECLARE_ALIGNED(16, static const uint32_t, inverse16) = 0x3D800000; |
|
__asm__ volatile ( |
|
"cvtsi2ss %2, %%xmm0 \n\t" |
|
"mulss %3, %%xmm0 \n\t" |
|
"movq (%1), %%xmm1 \n\t" |
|
"punpcklbw %%xmm1, %%xmm1 \n\t" |
|
"movaps %%xmm1, %%xmm2 \n\t" |
|
"punpcklwd %%xmm1, %%xmm1 \n\t" |
|
"punpckhwd %%xmm2, %%xmm2 \n\t" |
|
"psrad $24, %%xmm1 \n\t" |
|
"psrad $24, %%xmm2 \n\t" |
|
"shufps $0, %%xmm0, %%xmm0 \n\t" |
|
"cvtdq2ps %%xmm1, %%xmm1 \n\t" |
|
"cvtdq2ps %%xmm2, %%xmm2 \n\t" |
|
"mulps %%xmm0, %%xmm1 \n\t" |
|
"mulps %%xmm0, %%xmm2 \n\t" |
|
"movaps %%xmm1, 0(%0) \n\t" |
|
"movaps %%xmm2, 16(%0) \n\t" |
|
:: "r"(dst), "r"(src), "m"(scale), "m"(inverse16) |
|
XMM_CLOBBERS_ONLY("xmm0", "xmm1", "xmm2") |
|
); |
|
} |
|
|
|
#endif /* ARCH_X86_64 && HAVE_SSE2_INLINE */ |
|
|
|
#endif /* AVCODEC_X86_DCA_H */
|
|
|