/* | |
* x86 PNG optimizations. | |
* Copyright (c) 2008 Loren Merrit <[email protected]> | |
* | |
* This file is part of FFmpeg. | |
* | |
* FFmpeg is free software; you can redistribute it and/or | |
* modify it under the terms of the GNU Lesser General Public | |
* License as published by the Free Software Foundation; either | |
* version 2.1 of the License, or (at your option) any later version. | |
* | |
* FFmpeg is distributed in the hope that it will be useful, | |
* but WITHOUT ANY WARRANTY; without even the implied warranty of | |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
* Lesser General Public License for more details. | |
* | |
* You should have received a copy of the GNU Lesser General Public | |
* License along with FFmpeg; if not, write to the Free Software | |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
*/ | |
void ff_add_png_paeth_prediction_mmxext(uint8_t *dst, uint8_t *src, | |
uint8_t *top, int w, int bpp); | |
void ff_add_png_paeth_prediction_ssse3(uint8_t *dst, uint8_t *src, | |
uint8_t *top, int w, int bpp); | |
void ff_add_bytes_l2_sse2(uint8_t *dst, uint8_t *src1, | |
uint8_t *src2, int w); | |
av_cold void ff_pngdsp_init_x86(PNGDSPContext *dsp) | |
{ | |
int cpu_flags = av_get_cpu_flags(); | |
if (EXTERNAL_MMXEXT(cpu_flags)) | |
dsp->add_paeth_prediction = ff_add_png_paeth_prediction_mmxext; | |
if (EXTERNAL_SSE2(cpu_flags)) | |
dsp->add_bytes_l2 = ff_add_bytes_l2_sse2; | |
if (EXTERNAL_SSSE3(cpu_flags)) | |
dsp->add_paeth_prediction = ff_add_png_paeth_prediction_ssse3; | |
} | |