FFmpeg  4.0
vf_hflip_init.c
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1 /*
2  * Copyright (c) 2017 Paul B Mahol
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 "libavfilter/hflip.h"
25 
26 void ff_hflip_byte_ssse3(const uint8_t *src, uint8_t *dst, int w);
27 void ff_hflip_byte_avx2(const uint8_t *src, uint8_t *dst, int w);
28 void ff_hflip_short_ssse3(const uint8_t *src, uint8_t *dst, int w);
29 void ff_hflip_short_avx2(const uint8_t *src, uint8_t *dst, int w);
30 
31 av_cold void ff_hflip_init_x86(FlipContext *s, int step[4], int nb_planes)
32 {
34  int i;
35 
36  for (i = 0; i < nb_planes; i++) {
37  if (step[i] == 1) {
38  if (EXTERNAL_SSSE3(cpu_flags)) {
40  }
41  if (EXTERNAL_AVX2_FAST(cpu_flags)) {
43  }
44  } else if (step[i] == 2) {
45  if (EXTERNAL_SSSE3(cpu_flags)) {
47  }
48  if (EXTERNAL_AVX2_FAST(cpu_flags)) {
50  }
51  }
52  }
53 }
const char * s
Definition: avisynth_c.h:768
void ff_hflip_byte_avx2(const uint8_t *src, uint8_t *dst, int w)
static atomic_int cpu_flags
Definition: cpu.c:50
#define src
Definition: vp8dsp.c:254
Macro definitions for various function/variable attributes.
uint8_t
#define av_cold
Definition: attributes.h:82
#define EXTERNAL_AVX2_FAST(flags)
Definition: cpu.h:79
av_cold void ff_hflip_init_x86(FlipContext *s, int step[4], int nb_planes)
Definition: vf_hflip_init.c:31
void ff_hflip_short_ssse3(const uint8_t *src, uint8_t *dst, int w)
void ff_hflip_short_avx2(const uint8_t *src, uint8_t *dst, int w)
uint8_t w
Definition: llviddspenc.c:38
#define EXTERNAL_SSSE3(flags)
Definition: cpu.h:65
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition: cpu.c:93
void(* flip_line[4])(const uint8_t *src, uint8_t *dst, int w)
Definition: hflip.h:33
void ff_hflip_byte_ssse3(const uint8_t *src, uint8_t *dst, int w)