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libavcodec/x86/vp56dsp_init.c

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00001 /*
00002  * VP6 MMX/SSE2 optimizations
00003  * Copyright (C) 2009  Sebastien Lucas <sebastien.lucas@gmail.com>
00004  * Copyright (C) 2009  Zuxy Meng <zuxy.meng@gmail.com>
00005  *
00006  * This file is part of Libav.
00007  *
00008  * Libav is free software; you can redistribute it and/or
00009  * modify it under the terms of the GNU Lesser General Public
00010  * License as published by the Free Software Foundation; either
00011  * version 2.1 of the License, or (at your option) any later version.
00012  *
00013  * Libav is distributed in the hope that it will be useful,
00014  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00015  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00016  * Lesser General Public License for more details.
00017  *
00018  * You should have received a copy of the GNU Lesser General Public
00019  * License along with Libav; if not, write to the Free Software
00020  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
00021  */
00022 
00023 #include "libavutil/cpu.h"
00024 #include "libavutil/x86_cpu.h"
00025 #include "libavcodec/dsputil.h"
00026 #include "libavcodec/vp56dsp.h"
00027 
00028 void ff_vp6_filter_diag4_mmx(uint8_t *dst, uint8_t *src, int stride,
00029                              const int16_t *h_weights,const int16_t *v_weights);
00030 void ff_vp6_filter_diag4_sse2(uint8_t *dst, uint8_t *src, int stride,
00031                               const int16_t *h_weights,const int16_t *v_weights);
00032 
00033 av_cold void ff_vp56dsp_init_x86(VP56DSPContext* c, enum CodecID codec)
00034 {
00035 #if HAVE_YASM
00036     int mm_flags = av_get_cpu_flags();
00037 
00038     if (CONFIG_VP6_DECODER && codec == CODEC_ID_VP6) {
00039         if (mm_flags & AV_CPU_FLAG_MMX) {
00040             c->vp6_filter_diag4 = ff_vp6_filter_diag4_mmx;
00041         }
00042 
00043         if (mm_flags & AV_CPU_FLAG_SSE2) {
00044             c->vp6_filter_diag4 = ff_vp6_filter_diag4_sse2;
00045         }
00046     }
00047 #endif
00048 }
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