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ffmpeg / libavcodec / x86 / vp56dsp_init.c @ 2912e87a

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/*
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 * VP6 MMX/SSE2 optimizations
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 * Copyright (C) 2009  Sebastien Lucas <sebastien.lucas@gmail.com>
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 * Copyright (C) 2009  Zuxy Meng <zuxy.meng@gmail.com>
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 *
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 * This file is part of Libav.
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 *
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 * Libav 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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 * Libav 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 Libav; 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 "libavutil/cpu.h"
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#include "libavutil/x86_cpu.h"
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#include "libavcodec/dsputil.h"
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#include "libavcodec/vp56dsp.h"
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void ff_vp6_filter_diag4_mmx(uint8_t *dst, uint8_t *src, int stride,
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                             const int16_t *h_weights,const int16_t *v_weights);
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void ff_vp6_filter_diag4_sse2(uint8_t *dst, uint8_t *src, int stride,
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                              const int16_t *h_weights,const int16_t *v_weights);
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av_cold void ff_vp56dsp_init_x86(VP56DSPContext* c, enum CodecID codec)
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{
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#if HAVE_YASM
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    int mm_flags = av_get_cpu_flags();
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    if (CONFIG_VP6_DECODER && codec == CODEC_ID_VP6) {
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        if (mm_flags & AV_CPU_FLAG_MMX) {
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            c->vp6_filter_diag4 = ff_vp6_filter_diag4_mmx;
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        }
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        if (mm_flags & AV_CPU_FLAG_SSE2) {
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            c->vp6_filter_diag4 = ff_vp6_filter_diag4_sse2;
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        }
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    }
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#endif
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}