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/*
* Copyright (C) 2009 Loren Merritt <lorenm@u.washington.edu>
*
* This file is part of Libav.
*
* Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "config.h"
#include "libavutil/attributes.h"
#include "libavutil/cpu.h"
#include "libavutil/mem.h"
#include "libavutil/x86/asm.h"
#include "libavutil/x86/cpu.h"
#include "libavfilter/gradfun.h"
void ff_gradfun_filter_line_mmxext(intptr_t x, uint8_t *dst, uint8_t *src,
uint16_t *dc, int thresh,
const uint16_t *dithers);
void ff_gradfun_filter_line_ssse3(intptr_t x, uint8_t *dst, uint8_t *src,
uint16_t *dc, int thresh,
const uint16_t *dithers);
void ff_gradfun_blur_line_movdqa_sse2(intptr_t x, uint16_t *buf,
uint16_t *buf1, uint16_t *dc,
uint8_t *src1, uint8_t *src2);
void ff_gradfun_blur_line_movdqu_sse2(intptr_t x, uint16_t *buf,
uint16_t *buf1, uint16_t *dc,
uint8_t *src1, uint8_t *src2);
#if HAVE_YASM
static void gradfun_filter_line(uint8_t *dst, uint8_t *src, uint16_t *dc,
int width, int thresh, const uint16_t *dithers,
int alignment)
{
intptr_t x;
if (width & alignment) {
x = width & ~alignment;
ff_gradfun_filter_line_c(dst + x, src + x, dc + x / 2,
width - x, thresh, dithers);
width = x;
}
x = -width;
ff_gradfun_filter_line_mmxext(x, dst + width, src + width, dc + width / 2,
thresh, dithers);
}
static void gradfun_filter_line_mmxext(uint8_t *dst, uint8_t *src, uint16_t *dc,
int width, int thresh,
const uint16_t *dithers)
{
gradfun_filter_line(dst, src, dc, width, thresh, dithers, 3);
}
static void gradfun_filter_line_ssse3(uint8_t *dst, uint8_t *src, uint16_t *dc,
int width, int thresh,
const uint16_t *dithers)
{
gradfun_filter_line(dst, src, dc, width, thresh, dithers, 7);
}
static void gradfun_blur_line_sse2(uint16_t *dc, uint16_t *buf, uint16_t *buf1,
uint8_t *src, int src_linesize, int width)
{
intptr_t x = -2 * width;
if (((intptr_t) src | src_linesize) & 15)
ff_gradfun_blur_line_movdqu_sse2(x, buf + width, buf1 + width,
dc + width, src + width * 2,
src + width * 2 + src_linesize);
else
ff_gradfun_blur_line_movdqa_sse2(x, buf + width, buf1 + width,
dc + width, src + width * 2,
src + width * 2 + src_linesize);
}
#endif /* HAVE_YASM */
av_cold void ff_gradfun_init_x86(GradFunContext *gf)
{
#if HAVE_YASM
int cpu_flags = av_get_cpu_flags();
if (EXTERNAL_MMXEXT(cpu_flags))
gf->filter_line = gradfun_filter_line_mmxext;
if (EXTERNAL_SSSE3(cpu_flags))
gf->filter_line = gradfun_filter_line_ssse3;
if (EXTERNAL_SSE2(cpu_flags))
gf->blur_line = gradfun_blur_line_sse2;
#endif /* HAVE_YASM */
}
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