mirror of https://git.ffmpeg.org/ffmpeg.git
114 lines
3.9 KiB
C
114 lines
3.9 KiB
C
/*
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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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* 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 "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/cpu.h"
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#include "libavcodec/avcodec.h"
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#include "libavcodec/dsputil.h"
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#include "libavcodec/simple_idct.h"
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#include "dsputil_x86.h"
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#include "idct_xvid.h"
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static av_cold void dsputil_init_mmx(DSPContext *c, AVCodecContext *avctx,
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int cpu_flags, unsigned high_bit_depth)
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{
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#if HAVE_MMX_INLINE
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c->put_pixels_clamped = ff_put_pixels_clamped_mmx;
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c->add_pixels_clamped = ff_add_pixels_clamped_mmx;
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if (!high_bit_depth) {
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c->draw_edges = ff_draw_edges_mmx;
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}
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if (avctx->lowres == 0 && !high_bit_depth) {
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switch (avctx->idct_algo) {
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case FF_IDCT_AUTO:
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case FF_IDCT_SIMPLEAUTO:
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case FF_IDCT_SIMPLEMMX:
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c->idct_put = ff_simple_idct_put_mmx;
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c->idct_add = ff_simple_idct_add_mmx;
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c->idct = ff_simple_idct_mmx;
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c->idct_permutation_type = FF_SIMPLE_IDCT_PERM;
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break;
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case FF_IDCT_XVIDMMX:
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c->idct_put = ff_idct_xvid_mmx_put;
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c->idct_add = ff_idct_xvid_mmx_add;
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c->idct = ff_idct_xvid_mmx;
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break;
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}
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}
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#endif /* HAVE_MMX_INLINE */
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#if HAVE_MMX_EXTERNAL
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c->put_signed_pixels_clamped = ff_put_signed_pixels_clamped_mmx;
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#endif /* HAVE_MMX_EXTERNAL */
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}
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static av_cold void dsputil_init_mmxext(DSPContext *c, AVCodecContext *avctx,
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int cpu_flags, unsigned high_bit_depth)
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{
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#if HAVE_MMXEXT_INLINE
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if (!high_bit_depth && avctx->idct_algo == FF_IDCT_XVIDMMX && avctx->lowres == 0) {
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c->idct_put = ff_idct_xvid_mmxext_put;
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c->idct_add = ff_idct_xvid_mmxext_add;
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c->idct = ff_idct_xvid_mmxext;
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}
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#endif /* HAVE_MMXEXT_INLINE */
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}
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static av_cold void dsputil_init_sse2(DSPContext *c, AVCodecContext *avctx,
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int cpu_flags, unsigned high_bit_depth)
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{
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#if HAVE_SSE2_INLINE
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if (!high_bit_depth && avctx->idct_algo == FF_IDCT_XVIDMMX && avctx->lowres == 0) {
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c->idct_put = ff_idct_xvid_sse2_put;
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c->idct_add = ff_idct_xvid_sse2_add;
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c->idct = ff_idct_xvid_sse2;
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c->idct_permutation_type = FF_SSE2_IDCT_PERM;
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}
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#endif /* HAVE_SSE2_INLINE */
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#if HAVE_SSE2_EXTERNAL
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c->put_signed_pixels_clamped = ff_put_signed_pixels_clamped_sse2;
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#endif /* HAVE_SSE2_EXTERNAL */
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}
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av_cold void ff_dsputil_init_x86(DSPContext *c, AVCodecContext *avctx,
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unsigned high_bit_depth)
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{
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int cpu_flags = av_get_cpu_flags();
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if (X86_MMX(cpu_flags))
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dsputil_init_mmx(c, avctx, cpu_flags, high_bit_depth);
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if (X86_MMXEXT(cpu_flags))
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dsputil_init_mmxext(c, avctx, cpu_flags, high_bit_depth);
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if (X86_SSE2(cpu_flags))
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dsputil_init_sse2(c, avctx, cpu_flags, high_bit_depth);
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if (CONFIG_ENCODERS)
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ff_dsputilenc_init_mmx(c, avctx, high_bit_depth);
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}
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