| /* |
| * 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 cpu_flags = av_get_cpu_flags(); |
| |
| #if ARCH_X86_32 |
| if (EXTERNAL_MMX(cpu_flags)) |
| dsp->add_bytes_l2 = ff_add_bytes_l2_mmx; |
| #endif |
| 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; |
| } |