forked from KolibriOS/kolibrios
754f9336f0
git-svn-id: svn://kolibrios.org@4349 a494cfbc-eb01-0410-851d-a64ba20cac60
97 lines
3.9 KiB
C
97 lines
3.9 KiB
C
/*
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* Copyright (C) 2009 Loren Merritt <lorenm@u.washington.edu>
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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/mem.h"
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#include "libavutil/x86/asm.h"
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#include "libavutil/x86/cpu.h"
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#include "libavfilter/gradfun.h"
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#if HAVE_YASM
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void ff_gradfun_filter_line_mmxext(intptr_t x, uint8_t *dst, const uint8_t *src,
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const uint16_t *dc, int thresh,
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const uint16_t *dithers);
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static void gradfun_filter_line_mmxext(uint8_t *dst, const uint8_t *src,
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const uint16_t *dc,
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int width, int thresh,
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const uint16_t *dithers)
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{
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intptr_t x;
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if (width & 3) {
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x = width & ~3;
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ff_gradfun_filter_line_c(dst + x, src + x, dc + x / 2, width - x, thresh, dithers);
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width = x;
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}
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x = -width;
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ff_gradfun_filter_line_mmxext(x, dst + width, src + width, dc + width/2,
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thresh, dithers);
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}
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void ff_gradfun_filter_line_ssse3(intptr_t x, uint8_t *dst, const uint8_t *src,
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const uint16_t *dc, int thresh,
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const uint16_t *dithers);
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static void gradfun_filter_line_ssse3(uint8_t *dst, const uint8_t *src, const uint16_t *dc, int width, int thresh, const uint16_t *dithers)
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{
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intptr_t x;
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if (width & 7) {
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// could be 10% faster if I somehow eliminated this
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x = width & ~7;
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ff_gradfun_filter_line_c(dst + x, src + x, dc + x / 2, width - x, thresh, dithers);
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width = x;
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}
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x = -width;
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ff_gradfun_filter_line_ssse3(x, dst + width, src + width, dc + width/2,
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thresh, dithers);
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}
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void ff_gradfun_blur_line_movdqa_sse2(intptr_t x, uint16_t *buf, const uint16_t *buf1, uint16_t *dc, const uint8_t *src1, const uint8_t *src2);
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void ff_gradfun_blur_line_movdqu_sse2(intptr_t x, uint16_t *buf, const uint16_t *buf1, uint16_t *dc, const uint8_t *src1, const uint8_t *src2);
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static void gradfun_blur_line_sse2(uint16_t *dc, uint16_t *buf, const uint16_t *buf1, const uint8_t *src, int src_linesize, int width)
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{
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intptr_t x = -2*width;
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if (((intptr_t) src | src_linesize) & 15) {
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ff_gradfun_blur_line_movdqu_sse2(x, buf + width, buf1 + width,
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dc + width, src + width * 2,
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src + width * 2 + src_linesize);
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} else {
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ff_gradfun_blur_line_movdqa_sse2(x, buf + width, buf1 + width,
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dc + width, src + width * 2,
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src + width * 2 + src_linesize);
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}
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}
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#endif /* HAVE_YASM */
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av_cold void ff_gradfun_init_x86(GradFunContext *gf)
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{
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#if HAVE_YASM
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int cpu_flags = av_get_cpu_flags();
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if (EXTERNAL_MMXEXT(cpu_flags))
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gf->filter_line = gradfun_filter_line_mmxext;
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if (EXTERNAL_SSSE3(cpu_flags))
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gf->filter_line = gradfun_filter_line_ssse3;
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if (EXTERNAL_SSE2(cpu_flags))
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gf->blur_line = gradfun_blur_line_sse2;
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#endif /* HAVE_YASM */
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}
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