mirror of https://git.ffmpeg.org/ffmpeg.git
55 lines
1.7 KiB
C
55 lines
1.7 KiB
C
/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <stdint.h>
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#include "config.h"
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#include "libavutil/attributes.h"
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#include "libavutil/internal.h"
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#include "libavutil/cpu.h"
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#include "libavutil/x86/cpu.h"
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#include "libavcodec/blockdsp.h"
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#include "libavcodec/version.h"
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void ff_clear_block_mmx(int16_t *block);
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void ff_clear_block_sse(int16_t *block);
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void ff_clear_blocks_mmx(int16_t *blocks);
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void ff_clear_blocks_sse(int16_t *blocks);
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av_cold void ff_blockdsp_init_x86(BlockDSPContext *c,
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AVCodecContext *avctx)
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{
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#if HAVE_X86ASM
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int cpu_flags = av_get_cpu_flags();
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if (EXTERNAL_MMX(cpu_flags)) {
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c->clear_block = ff_clear_block_mmx;
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c->clear_blocks = ff_clear_blocks_mmx;
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}
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/* XvMCCreateBlocks() may not allocate 16-byte aligned blocks */
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if (CONFIG_XVMC && avctx->hwaccel && avctx->hwaccel->decode_mb)
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return;
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if (EXTERNAL_SSE(cpu_flags)) {
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c->clear_block = ff_clear_block_sse;
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c->clear_blocks = ff_clear_blocks_sse;
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}
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#endif /* HAVE_X86ASM */
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}
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