1/* 2 * This file is part of FFmpeg. 3 * 4 * FFmpeg is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Lesser General Public 6 * License as published by the Free Software Foundation; either 7 * version 2.1 of the License, or (at your option) any later version. 8 * 9 * FFmpeg is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Lesser General Public License for more details. 13 * 14 * You should have received a copy of the GNU Lesser General Public 15 * License along with FFmpeg; if not, write to the Free Software 16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 17 */ 18 19#include <stdint.h> 20 21#include "config.h" 22#include "libavutil/attributes.h" 23#include "libavutil/internal.h" 24#include "libavutil/cpu.h" 25#include "libavutil/x86/cpu.h" 26#include "libavcodec/blockdsp.h" 27#include "libavcodec/version.h" 28 29void ff_clear_block_mmx(int16_t *block); 30void ff_clear_block_sse(int16_t *block); 31void ff_clear_blocks_mmx(int16_t *blocks); 32void ff_clear_blocks_sse(int16_t *blocks); 33 34#if FF_API_XVMC 35av_cold void ff_blockdsp_init_x86(BlockDSPContext *c, unsigned high_bit_depth, 36 AVCodecContext *avctx) 37#else 38av_cold void ff_blockdsp_init_x86(BlockDSPContext *c, unsigned high_bit_depth) 39#endif /* FF_API_XVMC */ 40{ 41#if HAVE_YASM 42 int cpu_flags = av_get_cpu_flags(); 43 44 if (!high_bit_depth) { 45 if (EXTERNAL_MMX(cpu_flags)) { 46 c->clear_block = ff_clear_block_mmx; 47 c->clear_blocks = ff_clear_blocks_mmx; 48 } 49 50 /* XvMCCreateBlocks() may not allocate 16-byte aligned blocks */ 51 if (CONFIG_XVMC && avctx->hwaccel && avctx->hwaccel->decode_mb) 52 return; 53 54 if (EXTERNAL_SSE(cpu_flags)) { 55 c->clear_block = ff_clear_block_sse; 56 c->clear_blocks = ff_clear_blocks_sse; 57 } 58 } 59#endif /* HAVE_YASM */ 60} 61