1 /*
2 * SIMD-optimized pixel operations
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #include "libavutil/attributes.h"
22 #include "libavutil/cpu.h"
23 #include "libavutil/x86/cpu.h"
24 #include "libavcodec/pixblockdsp.h"
25
26 void ff_get_pixels_sse2(int16_t *block, const uint8_t *pixels, ptrdiff_t stride);
27 void ff_diff_pixels_sse2(int16_t *block, const uint8_t *s1, const uint8_t *s2,
28 ptrdiff_t stride);
29
ff_pixblockdsp_init_x86(PixblockDSPContext *c, AVCodecContext *avctx, unsigned high_bit_depth)30 av_cold void ff_pixblockdsp_init_x86(PixblockDSPContext *c,
31 AVCodecContext *avctx,
32 unsigned high_bit_depth)
33 {
34 int cpu_flags = av_get_cpu_flags();
35
36 if (EXTERNAL_SSE2(cpu_flags)) {
37 if (!high_bit_depth) {
38 c->get_pixels_unaligned =
39 c->get_pixels = ff_get_pixels_sse2;
40 }
41 c->diff_pixels_unaligned =
42 c->diff_pixels = ff_diff_pixels_sse2;
43 }
44 }
45