/* * x86 PNG optimizations. * Copyright (c) 2008 Loren Merrit <lorenm@u.washington.edu> * * 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 */ #include "libavutil/attributes.h" #include "libavutil/common.h" #include "libavutil/x86/cpu.h" #include "libavcodec/pngdsp.h" 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_mmx (uint8_t *dst, uint8_t *src1, uint8_t *src2, int w); 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 flags = av_get_cpu_flags(); #if ARCH_X86_32 if (EXTERNAL_MMX(flags)) dsp->add_bytes_l2 = ff_add_bytes_l2_mmx; #endif if (EXTERNAL_MMXEXT(flags)) dsp->add_paeth_prediction = ff_add_png_paeth_prediction_mmxext; if (EXTERNAL_SSE2(flags)) dsp->add_bytes_l2 = ff_add_bytes_l2_sse2; if (EXTERNAL_SSSE3(flags)) dsp->add_paeth_prediction = ff_add_png_paeth_prediction_ssse3; }