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libavcodec
x86
pngdsp_init.c
Go to the documentation of this file.
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/*
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* x86 PNG optimizations.
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* Copyright (c) 2008 Loren Merrit <lorenm@u.washington.edu>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg 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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* FFmpeg 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 FFmpeg; 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/common.h
"
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#include "
libavutil/x86/cpu.h
"
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#include "
libavcodec/pngdsp.h
"
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void
ff_add_png_paeth_prediction_mmxext
(
uint8_t
*dst,
uint8_t
*
src
,
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uint8_t
*top,
int
w,
int
bpp);
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void
ff_add_png_paeth_prediction_ssse3
(
uint8_t
*dst,
uint8_t
*
src
,
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uint8_t
*top,
int
w,
int
bpp);
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void
ff_add_bytes_l2_mmx
(
uint8_t
*dst,
uint8_t
*src1,
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uint8_t
*src2,
int
w);
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void
ff_add_bytes_l2_sse2
(
uint8_t
*dst,
uint8_t
*src1,
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uint8_t
*src2,
int
w);
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av_cold
void
ff_pngdsp_init_x86
(
PNGDSPContext
*dsp)
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{
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int
cpu_flags =
av_get_cpu_flags
();
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#if ARCH_X86_32
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if
(
EXTERNAL_MMX
(cpu_flags))
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dsp->
add_bytes_l2
=
ff_add_bytes_l2_mmx
;
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#endif
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if
(
EXTERNAL_MMXEXT
(cpu_flags))
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dsp->
add_paeth_prediction
=
ff_add_png_paeth_prediction_mmxext
;
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if
(
EXTERNAL_SSE2
(cpu_flags))
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dsp->
add_bytes_l2
=
ff_add_bytes_l2_sse2
;
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if
(
EXTERNAL_SSSE3
(cpu_flags))
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dsp->
add_paeth_prediction
=
ff_add_png_paeth_prediction_ssse3
;
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}
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1.8.1.2