130c33af35
* commit 'b23bc95920e2f10b9621857e829c45b064f356c0': x86: dca: Add missing multiple inclusion guards Merged-by: Michael Niedermayer <michaelni@gmx.at>
61 lines
2.1 KiB
C
61 lines
2.1 KiB
C
/*
|
|
* 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 */
|