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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/asm.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_mmxext
(
DCTELEM
*
block
);
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void
ff_rv34_idct_dc_noround_mmxext
(
DCTELEM
*
block
);
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void
ff_rv34_idct_dc_add_mmx
(
uint8_t
*dst, ptrdiff_t
stride
,
int
dc);
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void
ff_rv34_idct_dc_add_sse4
(
uint8_t
*dst, ptrdiff_t
stride
,
int
dc);
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void
ff_rv34_idct_add_mmxext
(
uint8_t
*dst, ptrdiff_t
stride
,
DCTELEM
*
block
);
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av_cold
void
ff_rv34dsp_init_x86
(
RV34DSPContext
* c,
DSPContext
*dsp)
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{
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int
mm_flags =
av_get_cpu_flags
();
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if
(
EXTERNAL_MMX
(mm_flags))
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c->
rv34_idct_dc_add
=
ff_rv34_idct_dc_add_mmx
;
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if
(
EXTERNAL_MMXEXT
(mm_flags)) {
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c->
rv34_inv_transform_dc
=
ff_rv34_idct_dc_noround_mmxext
;
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c->
rv34_idct_add
=
ff_rv34_idct_add_mmxext
;
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}
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if
(
EXTERNAL_SSE4
(mm_flags))
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c->
rv34_idct_dc_add
=
ff_rv34_idct_dc_add_sse4
;
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}
EXTERNAL_MMX
#define EXTERNAL_MMX(flags)
Definition:
cpu.h:33
asm.h
ff_rv34dsp_init_x86
av_cold void ff_rv34dsp_init_x86(RV34DSPContext *c, DSPContext *dsp)
Definition:
rv34dsp_init.c:34
cpu.h
stride
int stride
Definition:
mace.c:144
av_cold
#define av_cold
EXTERNAL_SSE4
#define EXTERNAL_SSE4(flags)
Definition:
cpu.h:39
ff_rv34_idct_add_mmxext
void ff_rv34_idct_add_mmxext(uint8_t *dst, ptrdiff_t stride, DCTELEM *block)
uint8_t
uint8_t
Definition:
audio_convert.c:194
RV34DSPContext::rv34_idct_add
rv34_idct_add_func rv34_idct_add
Definition:
rv34dsp.h:69
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:70
ff_rv34_idct_dc_mmxext
void ff_rv34_idct_dc_mmxext(DCTELEM *block)
RV34DSPContext::rv34_inv_transform_dc
rv34_inv_transform_func rv34_inv_transform_dc
Definition:
rv34dsp.h:68
RV34DSPContext
Definition:
rv34dsp.h:56
block
static DCTELEM block[64]
Definition:
dct-test.c:169
cpu.h
av_get_cpu_flags
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition:
cpu.c:25
DCTELEM
short DCTELEM
Definition:
dsputil.h:39
EXTERNAL_MMXEXT
#define EXTERNAL_MMXEXT(flags)
Definition:
cpu.h:34
ff_rv34_idct_dc_add_mmx
void ff_rv34_idct_dc_add_mmx(uint8_t *dst, ptrdiff_t stride, int dc)
dsputil.h
DSP utils.
ff_rv34_idct_dc_noround_mmxext
void ff_rv34_idct_dc_noround_mmxext(DCTELEM *block)
ff_rv34_idct_dc_add_sse4
void ff_rv34_idct_dc_add_sse4(uint8_t *dst, ptrdiff_t stride, int dc)
DSPContext
DSPContext.
Definition:
dsputil.h:194