1/* 2 * RV30/40 MMX/SSE2 optimizations 3 * Copyright (C) 2012 Christophe Gisquet <christophe.gisquet@gmail.com> 4 * 5 * This file is part of Libav. 6 * 7 * Libav is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Lesser General Public 9 * License as published by the Free Software Foundation; either 10 * version 2.1 of the License, or (at your option) any later version. 11 * 12 * Libav is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Lesser General Public License for more details. 16 * 17 * You should have received a copy of the GNU Lesser General Public 18 * License along with Libav; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 20 */ 21 22#include "libavutil/cpu.h" 23#include "libavutil/x86_cpu.h" 24#include "libavcodec/dsputil.h" 25#include "libavcodec/rv34dsp.h" 26 27void ff_rv34_idct_dc_mmx2(DCTELEM *block); 28void ff_rv34_idct_dc_noround_mmx2(DCTELEM *block); 29void ff_rv34_idct_dc_add_mmx(uint8_t *dst, int stride, int dc); 30void ff_rv34_idct_dc_add_sse4(uint8_t *dst, int stride, int dc); 31 32av_cold void ff_rv34dsp_init_x86(RV34DSPContext* c, DSPContext *dsp) 33{ 34#if HAVE_YASM 35 int mm_flags = av_get_cpu_flags(); 36 37 if (mm_flags & AV_CPU_FLAG_MMX) 38 c->rv34_idct_dc_add = ff_rv34_idct_dc_add_mmx; 39 if (mm_flags & AV_CPU_FLAG_MMX2) { 40 c->rv34_inv_transform_dc = ff_rv34_idct_dc_noround_mmx2; 41 } 42 if (mm_flags & AV_CPU_FLAG_SSE4) 43 c->rv34_idct_dc_add = ff_rv34_idct_dc_add_sse4; 44#endif 45} 46