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pngdsp_init.c
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1 /*
2  * x86 PNG optimizations.
3  * Copyright (c) 2008 Loren Merrit <lorenm@u.washington.edu>
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #include "libavutil/attributes.h"
23 #include "libavutil/common.h"
24 #include "libavutil/x86/cpu.h"
25 #include "libavcodec/pngdsp.h"
26 
28  uint8_t *top, int w, int bpp);
30  uint8_t *top, int w, int bpp);
32  uint8_t *src2, int w);
34  uint8_t *src2, int w);
35 
37 {
39 
40 #if ARCH_X86_32
41  if (EXTERNAL_MMX(cpu_flags))
43 #endif
44  if (EXTERNAL_MMXEXT(cpu_flags))
46  if (EXTERNAL_SSE2(cpu_flags))
48  if (EXTERNAL_SSSE3(cpu_flags))
50 }
#define EXTERNAL_MMX(flags)
Definition: cpu.h:54
void ff_add_png_paeth_prediction_mmxext(uint8_t *dst, uint8_t *src, uint8_t *top, int w, int bpp)
void(* add_bytes_l2)(uint8_t *dst, uint8_t *src1, uint8_t *src2, int w)
Definition: pngdsp.h:28
av_cold void ff_pngdsp_init_x86(PNGDSPContext *dsp)
Definition: pngdsp_init.c:36
#define src
Definition: vp8dsp.c:254
Macro definitions for various function/variable attributes.
uint8_t
#define av_cold
Definition: attributes.h:82
void ff_add_bytes_l2_mmx(uint8_t *dst, uint8_t *src1, uint8_t *src2, int w)
#define EXTERNAL_SSE2(flags)
Definition: cpu.h:57
void(* add_paeth_prediction)(uint8_t *dst, uint8_t *src, uint8_t *top, int w, int bpp)
Definition: pngdsp.h:33
void ff_add_bytes_l2_sse2(uint8_t *dst, uint8_t *src1, uint8_t *src2, int w)
#define src1
Definition: h264pred.c:139
static int cpu_flags
Definition: cpu.c:47
void ff_add_png_paeth_prediction_ssse3(uint8_t *dst, uint8_t *src, uint8_t *top, int w, int bpp)
#define EXTERNAL_SSSE3(flags)
Definition: cpu.h:63
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition: cpu.c:88
#define EXTERNAL_MMXEXT(flags)
Definition: cpu.h:55
common internal and external API header