diff options
Diffstat (limited to 'libavcodec/x86/pngdsp_init.c')
-rw-r--r-- | libavcodec/x86/pngdsp_init.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/libavcodec/x86/pngdsp_init.c b/libavcodec/x86/pngdsp_init.c new file mode 100644 index 0000000000..7a12730620 --- /dev/null +++ b/libavcodec/x86/pngdsp_init.c @@ -0,0 +1,51 @@ +/* + * 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/common.h" +#include "libavutil/cpu.h" +#include "libavcodec/pngdsp.h" + +void ff_add_png_paeth_prediction_mmx2 (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); + +void ff_pngdsp_init_x86(PNGDSPContext *dsp) +{ +#if HAVE_YASM + int flags = av_get_cpu_flags(); + +#if ARCH_X86_32 + if (flags & AV_CPU_FLAG_MMX) + dsp->add_bytes_l2 = ff_add_bytes_l2_mmx; +#endif + if (flags & AV_CPU_FLAG_MMXEXT) + dsp->add_paeth_prediction = ff_add_png_paeth_prediction_mmx2; + if (flags & AV_CPU_FLAG_SSE2) + dsp->add_bytes_l2 = ff_add_bytes_l2_sse2; + if (flags & AV_CPU_FLAG_SSSE3) + dsp->add_paeth_prediction = ff_add_png_paeth_prediction_ssse3; +#endif +} |