yading@10: /*
yading@10:  * x86 PNG optimizations.
yading@10:  * Copyright (c) 2008 Loren Merrit <lorenm@u.washington.edu>
yading@10:  *
yading@10:  * This file is part of FFmpeg.
yading@10:  *
yading@10:  * FFmpeg is free software; you can redistribute it and/or
yading@10:  * modify it under the terms of the GNU Lesser General Public
yading@10:  * License as published by the Free Software Foundation; either
yading@10:  * version 2.1 of the License, or (at your option) any later version.
yading@10:  *
yading@10:  * FFmpeg is distributed in the hope that it will be useful,
yading@10:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
yading@10:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
yading@10:  * Lesser General Public License for more details.
yading@10:  *
yading@10:  * You should have received a copy of the GNU Lesser General Public
yading@10:  * License along with FFmpeg; if not, write to the Free Software
yading@10:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
yading@10:  */
yading@10: 
yading@10: #include "libavutil/attributes.h"
yading@10: #include "libavutil/common.h"
yading@10: #include "libavutil/x86/cpu.h"
yading@10: #include "libavcodec/pngdsp.h"
yading@10: 
yading@10: void ff_add_png_paeth_prediction_mmxext(uint8_t *dst, uint8_t *src,
yading@10:                                         uint8_t *top, int w, int bpp);
yading@10: void ff_add_png_paeth_prediction_ssse3(uint8_t *dst, uint8_t *src,
yading@10:                                        uint8_t *top, int w, int bpp);
yading@10: void ff_add_bytes_l2_mmx (uint8_t *dst, uint8_t *src1,
yading@10:                           uint8_t *src2, int w);
yading@10: void ff_add_bytes_l2_sse2(uint8_t *dst, uint8_t *src1,
yading@10:                           uint8_t *src2, int w);
yading@10: 
yading@10: av_cold void ff_pngdsp_init_x86(PNGDSPContext *dsp)
yading@10: {
yading@10:     int flags = av_get_cpu_flags();
yading@10: 
yading@10: #if ARCH_X86_32
yading@10:     if (EXTERNAL_MMX(flags))
yading@10:         dsp->add_bytes_l2         = ff_add_bytes_l2_mmx;
yading@10: #endif
yading@10:     if (EXTERNAL_MMXEXT(flags))
yading@10:         dsp->add_paeth_prediction = ff_add_png_paeth_prediction_mmxext;
yading@10:     if (EXTERNAL_SSE2(flags))
yading@10:         dsp->add_bytes_l2         = ff_add_bytes_l2_sse2;
yading@10:     if (EXTERNAL_SSSE3(flags))
yading@10:         dsp->add_paeth_prediction = ff_add_png_paeth_prediction_ssse3;
yading@10: }