aac5773f
 hucm
功能基本完成，接口待打磨
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/*
* SIMD-optimized pixel operations
*
* This file is part of FFmpeg.
*
* FFmpeg 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.
*
* FFmpeg 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 FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavutil/attributes.h"
#include "libavutil/cpu.h"
#include "libavutil/x86/cpu.h"
#include "libavcodec/pixblockdsp.h"
void ff_get_pixels_mmx(int16_t *block, const uint8_t *pixels, ptrdiff_t stride);
void ff_get_pixels_sse2(int16_t *block, const uint8_t *pixels, ptrdiff_t stride);
void ff_diff_pixels_mmx(int16_t *block, const uint8_t *s1, const uint8_t *s2,
ptrdiff_t stride);
void ff_diff_pixels_sse2(int16_t *block, const uint8_t *s1, const uint8_t *s2,
ptrdiff_t stride);
av_cold void ff_pixblockdsp_init_x86(PixblockDSPContext *c,
AVCodecContext *avctx,
unsigned high_bit_depth)
{
int cpu_flags = av_get_cpu_flags();
if (EXTERNAL_MMX(cpu_flags)) {
if (!high_bit_depth)
c->get_pixels = ff_get_pixels_mmx;
c->diff_pixels_unaligned =
c->diff_pixels = ff_diff_pixels_mmx;
}
if (EXTERNAL_SSE2(cpu_flags)) {
if (!high_bit_depth)
c->get_pixels = ff_get_pixels_sse2;
c->diff_pixels_unaligned =
c->diff_pixels = ff_diff_pixels_sse2;
}
}
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