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2ba45a60 DM |
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 | ||
27 | void ff_add_png_paeth_prediction_mmxext(uint8_t *dst, uint8_t *src, | |
28 | uint8_t *top, int w, int bpp); | |
29 | void ff_add_png_paeth_prediction_ssse3(uint8_t *dst, uint8_t *src, | |
30 | uint8_t *top, int w, int bpp); | |
31 | void ff_add_bytes_l2_mmx (uint8_t *dst, uint8_t *src1, | |
32 | uint8_t *src2, int w); | |
33 | void ff_add_bytes_l2_sse2(uint8_t *dst, uint8_t *src1, | |
34 | uint8_t *src2, int w); | |
35 | ||
36 | av_cold void ff_pngdsp_init_x86(PNGDSPContext *dsp) | |
37 | { | |
38 | int cpu_flags = av_get_cpu_flags(); | |
39 | ||
40 | #if ARCH_X86_32 | |
41 | if (EXTERNAL_MMX(cpu_flags)) | |
42 | dsp->add_bytes_l2 = ff_add_bytes_l2_mmx; | |
43 | #endif | |
44 | if (EXTERNAL_MMXEXT(cpu_flags)) | |
45 | dsp->add_paeth_prediction = ff_add_png_paeth_prediction_mmxext; | |
46 | if (EXTERNAL_SSE2(cpu_flags)) | |
47 | dsp->add_bytes_l2 = ff_add_bytes_l2_sse2; | |
48 | if (EXTERNAL_SSSE3(cpu_flags)) | |
49 | dsp->add_paeth_prediction = ff_add_png_paeth_prediction_ssse3; | |
50 | } |