mirror of
https://github.com/FFmpeg/FFmpeg.git
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55 lines
2.1 KiB
C
55 lines
2.1 KiB
C
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/*
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* SIMD-optimized HuffYUV encoding functions
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* Copyright (c) 2000, 2001 Fabrice Bellard
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* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
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*
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* MMX optimization by Nick Kurshev <nickols_k@mail.ru>
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*
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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 "libavutil/attributes.h"
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#include "libavutil/cpu.h"
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#include "libavutil/pixdesc.h"
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#include "libavutil/x86/cpu.h"
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#include "libavcodec/huffyuvencdsp.h"
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void ff_diff_int16_mmx (uint16_t *dst, const uint16_t *src1, const uint16_t *src2,
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unsigned mask, int w);
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void ff_diff_int16_sse2(uint16_t *dst, const uint16_t *src1, const uint16_t *src2,
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unsigned mask, int w);
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void ff_sub_hfyu_median_pred_int16_mmxext(uint16_t *dst, const uint16_t *src1, const uint16_t *src2,
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unsigned mask, int w, int *left, int *left_top);
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av_cold void ff_huffyuvencdsp_init_x86(HuffYUVEncDSPContext *c, AVCodecContext *avctx)
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{
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av_unused int cpu_flags = av_get_cpu_flags();
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const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(avctx->pix_fmt);
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if (ARCH_X86_32 && EXTERNAL_MMX(cpu_flags)) {
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c->diff_int16 = ff_diff_int16_mmx;
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}
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if (EXTERNAL_MMXEXT(cpu_flags) && pix_desc && pix_desc->comp[0].depth<16) {
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c->sub_hfyu_median_pred_int16 = ff_sub_hfyu_median_pred_int16_mmxext;
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}
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if (EXTERNAL_SSE2(cpu_flags)) {
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c->diff_int16 = ff_diff_int16_sse2;
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}
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}
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