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libavcodec
x86
dcadsp_init.c
Go to the documentation of this file.
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/*
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* Copyright (c) 2012-2014 Christophe Gisquet <christophe.gisquet@gmail.com>
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*
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* This file is part of Libav.
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*
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* Libav is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* Libav is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with Libav; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "
libavutil/attributes.h
"
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#include "
libavutil/cpu.h
"
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#include "
libavutil/x86/cpu.h
"
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#include "
libavcodec/dcadsp.h
"
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void
ff_int8x8_fmul_int32_sse
(
float
*dst,
const
int8_t *src,
int
scale
);
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void
ff_int8x8_fmul_int32_sse2
(
float
*dst,
const
int8_t *src,
int
scale
);
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void
ff_int8x8_fmul_int32_sse4
(
float
*dst,
const
int8_t *src,
int
scale
);
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av_cold
void
ff_dcadsp_init_x86
(
DCADSPContext
*s)
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{
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int
cpu_flags
=
av_get_cpu_flags
();
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if
(
EXTERNAL_SSE
(cpu_flags)) {
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#if ARCH_X86_32
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s->
int8x8_fmul_int32
=
ff_int8x8_fmul_int32_sse
;
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#endif
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}
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if
(
EXTERNAL_SSE2
(cpu_flags)) {
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s->
int8x8_fmul_int32
=
ff_int8x8_fmul_int32_sse2
;
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}
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if
(
EXTERNAL_SSE4
(cpu_flags)) {
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s->
int8x8_fmul_int32
=
ff_int8x8_fmul_int32_sse4
;
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}
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}
cpu.h
EXTERNAL_SSE
#define EXTERNAL_SSE(flags)
Definition:
cpu.h:47
attributes.h
Macro definitions for various function/variable attributes.
EXTERNAL_SSE4
#define EXTERNAL_SSE4(flags)
Definition:
cpu.h:51
av_cold
#define av_cold
Definition:
attributes.h:66
EXTERNAL_SSE2
#define EXTERNAL_SSE2(flags)
Definition:
cpu.h:48
ff_int8x8_fmul_int32_sse
void ff_int8x8_fmul_int32_sse(float *dst, const int8_t *src, int scale)
cpu_flags
static int cpu_flags
Definition:
dct-test.c:73
dcadsp.h
cpu.h
DCADSPContext
Definition:
dcadsp.h:25
ff_int8x8_fmul_int32_sse4
void ff_int8x8_fmul_int32_sse4(float *dst, const int8_t *src, int scale)
av_get_cpu_flags
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition:
cpu.c:47
scale
static const uint16_t scale[4]
Definition:
simple_idct_vis.c:39
DCADSPContext::int8x8_fmul_int32
void(* int8x8_fmul_int32)(float *dst, const int8_t *src, int scale)
Definition:
dcadsp.h:34
ff_dcadsp_init_x86
av_cold void ff_dcadsp_init_x86(DCADSPContext *s)
Definition:
dcadsp_init.c:30
ff_int8x8_fmul_int32_sse2
void ff_int8x8_fmul_int32_sse2(float *dst, const int8_t *src, int scale)
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