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 Libav.
6  *
7  * Libav 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  * Libav 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 Libav; 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/common.h"
23 #include "libavutil/x86/cpu.h"
24 #include "libavcodec/pngdsp.h"
25 
27  uint8_t *top, int w, int bpp);
29  uint8_t *top, int w, int bpp);
30 void ff_add_bytes_l2_mmx (uint8_t *dst, uint8_t *src1,
31  uint8_t *src2, int w);
32 void ff_add_bytes_l2_sse2(uint8_t *dst, uint8_t *src1,
33  uint8_t *src2, int w);
34 
36 {
37  int flags = av_get_cpu_flags();
38 
39 #if ARCH_X86_32
40  if (EXTERNAL_MMX(flags))
42 #endif
43  if (EXTERNAL_MMXEXT(flags))
45  if (EXTERNAL_SSE2(flags))
47  if (EXTERNAL_SSSE3(flags))
49 }
#define EXTERNAL_MMX(flags)
Definition: cpu.h:33
void ff_add_png_paeth_prediction_mmxext(uint8_t *dst, uint8_t *src, uint8_t *top, int w, int bpp)
void ff_pngdsp_init_x86(PNGDSPContext *dsp)
Definition: pngdsp_init.c:35
void(* add_bytes_l2)(uint8_t *dst, uint8_t *src1, uint8_t *src2, int w)
Definition: pngdsp.h:28
uint8_t
static int flags
Definition: log.c:42
void ff_add_bytes_l2_mmx(uint8_t *dst, uint8_t *src1, uint8_t *src2, int w)
#define EXTERNAL_SSE2(flags)
Definition: cpu.h:36
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)
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:38
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition: cpu.c:25
#define EXTERNAL_MMXEXT(flags)
Definition: cpu.h:34
common internal and external API header