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https://github.com/FFmpeg/FFmpeg.git
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64 lines
2.3 KiB
C
64 lines
2.3 KiB
C
/*
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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 "config.h"
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#include "libavutil/attributes.h"
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#include "libavutil/cpu.h"
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#include "libavutil/x86/asm.h"
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#include "libavutil/x86/cpu.h"
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#include "libavcodec/huffyuvdsp.h"
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void ff_add_bytes_mmx(uint8_t *dst, uint8_t *src, int w);
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void ff_add_hfyu_median_pred_cmov(uint8_t *dst, const uint8_t *top,
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const uint8_t *diff, int w,
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int *left, int *left_top);
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void ff_add_hfyu_median_pred_mmxext(uint8_t *dst, const uint8_t *top,
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const uint8_t *diff, int w,
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int *left, int *left_top);
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int ff_add_hfyu_left_pred_ssse3(uint8_t *dst, const uint8_t *src,
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int w, int left);
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int ff_add_hfyu_left_pred_sse4(uint8_t *dst, const uint8_t *src,
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int w, int left);
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av_cold void ff_huffyuvdsp_init_x86(HuffYUVDSPContext *c)
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{
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int cpu_flags = av_get_cpu_flags();
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#if HAVE_7REGS && HAVE_INLINE_ASM
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if (cpu_flags & AV_CPU_FLAG_CMOV)
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c->add_hfyu_median_pred = ff_add_hfyu_median_pred_cmov;
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#endif
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if (INLINE_MMX(cpu_flags))
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c->add_bytes = ff_add_bytes_mmx;
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if (EXTERNAL_MMXEXT(cpu_flags)) {
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/* slower than cmov version on AMD */
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if (!(cpu_flags & AV_CPU_FLAG_3DNOW))
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c->add_hfyu_median_pred = ff_add_hfyu_median_pred_mmxext;
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}
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if (EXTERNAL_SSSE3(cpu_flags)) {
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c->add_hfyu_left_pred = ff_add_hfyu_left_pred_ssse3;
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if (cpu_flags & AV_CPU_FLAG_SSE4) // not really SSE4, just slow on Conroe
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c->add_hfyu_left_pred = ff_add_hfyu_left_pred_sse4;
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}
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}
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