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libavcodec
x86
rv34dsp_init.c
Go to the documentation of this file.
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/*
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* RV30/40 MMX/SSE2 optimizations
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* Copyright (C) 2012 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/cpu.h
"
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#include "
libavutil/x86_cpu.h
"
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#include "
libavcodec/dsputil.h
"
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#include "
libavcodec/rv34dsp.h
"
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void
ff_rv34_idct_dc_mmx2
(
DCTELEM
*
block
);
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void
ff_rv34_idct_dc_noround_mmx2
(
DCTELEM
*
block
);
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void
ff_rv34_idct_dc_add_mmx
(uint8_t *dst,
int
stride
,
int
dc);
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void
ff_rv34_idct_dc_add_sse4
(uint8_t *dst,
int
stride
,
int
dc);
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av_cold
void
ff_rv34dsp_init_x86
(
RV34DSPContext
* c,
DSPContext
*
dsp
)
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{
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#if HAVE_YASM
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int
mm_flags =
av_get_cpu_flags
();
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if
(mm_flags &
AV_CPU_FLAG_MMX
)
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c->
rv34_idct_dc_add
=
ff_rv34_idct_dc_add_mmx
;
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if
(mm_flags &
AV_CPU_FLAG_MMX2
) {
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c->
rv34_inv_transform_dc
=
ff_rv34_idct_dc_noround_mmx2
;
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}
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if
(mm_flags &
AV_CPU_FLAG_SSE4
)
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c->
rv34_idct_dc_add
=
ff_rv34_idct_dc_add_sse4
;
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#endif
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}
ff_rv34_idct_dc_add_sse4
void ff_rv34_idct_dc_add_sse4(uint8_t *dst, int stride, int dc)
ff_rv34dsp_init_x86
av_cold void ff_rv34dsp_init_x86(RV34DSPContext *c, DSPContext *dsp)
Definition:
rv34dsp_init.c:32
ff_rv34_idct_dc_noround_mmx2
void ff_rv34_idct_dc_noround_mmx2(DCTELEM *block)
AV_CPU_FLAG_MMX2
#define AV_CPU_FLAG_MMX2
SSE integer functions or AMD MMX ext.
Definition:
cpu.h:28
stride
int stride
Definition:
mace.c:143
av_cold
#define av_cold
Definition:
attributes.h:71
dsp
static DSPContext dsp
Definition:
atrac3.c:135
rv34dsp.h
RV30/40 decoder motion compensation functions.
RV34DSPContext::rv34_idct_dc_add
rv34_idct_dc_add_func rv34_idct_dc_add
Definition:
rv34dsp.h:65
RV34DSPContext::rv34_inv_transform_dc
rv34_inv_transform_func rv34_inv_transform_dc
Definition:
rv34dsp.h:63
RV34DSPContext
Definition:
rv34dsp.h:56
ff_rv34_idct_dc_add_mmx
void ff_rv34_idct_dc_add_mmx(uint8_t *dst, int stride, int dc)
block
static DCTELEM block[64]
Definition:
dct-test.c:189
cpu.h
AV_CPU_FLAG_MMX
#define AV_CPU_FLAG_MMX
standard MMX
Definition:
cpu.h:27
AV_CPU_FLAG_SSE4
#define AV_CPU_FLAG_SSE4
Penryn SSE4.1 functions.
Definition:
cpu.h:38
av_get_cpu_flags
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition:
cpu.c:22
DCTELEM
short DCTELEM
Definition:
dsputil.h:39
dsputil.h
DSP utils.
ff_rv34_idct_dc_mmx2
void ff_rv34_idct_dc_mmx2(DCTELEM *block)
x86_cpu.h
DSPContext
DSPContext.
Definition:
dsputil.h:226