FFmpeg
h264chroma_init.c
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1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #include <stdint.h>
20 
21 #include "config.h"
22 #include "libavutil/attributes.h"
23 #include "libavutil/cpu.h"
24 #include "libavutil/x86/cpu.h"
25 #include "libavcodec/h264chroma.h"
26 
28  ptrdiff_t stride, int h, int x, int y);
30  ptrdiff_t stride, int h, int x, int y);
32  ptrdiff_t stride, int h, int x, int y);
33 
35  ptrdiff_t stride, int h, int x, int y);
37  ptrdiff_t stride, int h, int x, int y);
39  ptrdiff_t stride, int h, int x, int y);
40 
42  ptrdiff_t stride, int h, int x, int y);
44  ptrdiff_t stride, int h, int x, int y);
45 
47  ptrdiff_t stride, int h, int x, int y);
49  ptrdiff_t stride, int h, int x, int y);
50 
52  ptrdiff_t stride, int h, int x, int y);
54  ptrdiff_t stride, int h, int x, int y);
55 
56 #define CHROMA_MC(OP, NUM, DEPTH, OPT) \
57 void ff_ ## OP ## _h264_chroma_mc ## NUM ## _ ## DEPTH ## _ ## OPT \
58  (uint8_t *dst, uint8_t *src, \
59  ptrdiff_t stride, int h, int x, int y);
60 
61 CHROMA_MC(put, 2, 10, mmxext)
62 CHROMA_MC(avg, 2, 10, mmxext)
63 CHROMA_MC(put, 4, 10, mmxext)
64 CHROMA_MC(avg, 4, 10, mmxext)
65 CHROMA_MC(put, 8, 10, sse2)
66 CHROMA_MC(avg, 8, 10, sse2)
67 CHROMA_MC(put, 8, 10, avx)
68 CHROMA_MC(avg, 8, 10, avx)
69 
71 {
72  int high_bit_depth = bit_depth > 8;
74 
75  if (EXTERNAL_MMX(cpu_flags) && !high_bit_depth) {
76  c->put_h264_chroma_pixels_tab[0] = ff_put_h264_chroma_mc8_rnd_mmx;
77  c->put_h264_chroma_pixels_tab[1] = ff_put_h264_chroma_mc4_mmx;
78  }
79 
80  if (EXTERNAL_AMD3DNOW(cpu_flags) && !high_bit_depth) {
81  c->avg_h264_chroma_pixels_tab[0] = ff_avg_h264_chroma_mc8_rnd_3dnow;
82  c->avg_h264_chroma_pixels_tab[1] = ff_avg_h264_chroma_mc4_3dnow;
83  }
84 
85  if (EXTERNAL_MMXEXT(cpu_flags) && !high_bit_depth) {
86  c->avg_h264_chroma_pixels_tab[0] = ff_avg_h264_chroma_mc8_rnd_mmxext;
87  c->avg_h264_chroma_pixels_tab[1] = ff_avg_h264_chroma_mc4_mmxext;
88  c->avg_h264_chroma_pixels_tab[2] = ff_avg_h264_chroma_mc2_mmxext;
89  c->put_h264_chroma_pixels_tab[2] = ff_put_h264_chroma_mc2_mmxext;
90  }
91 
92  if (EXTERNAL_MMXEXT(cpu_flags) && bit_depth > 8 && bit_depth <= 10) {
93  c->put_h264_chroma_pixels_tab[2] = ff_put_h264_chroma_mc2_10_mmxext;
94  c->avg_h264_chroma_pixels_tab[2] = ff_avg_h264_chroma_mc2_10_mmxext;
95  c->put_h264_chroma_pixels_tab[1] = ff_put_h264_chroma_mc4_10_mmxext;
96  c->avg_h264_chroma_pixels_tab[1] = ff_avg_h264_chroma_mc4_10_mmxext;
97  }
98 
99  if (EXTERNAL_SSE2(cpu_flags) && bit_depth > 8 && bit_depth <= 10) {
100  c->put_h264_chroma_pixels_tab[0] = ff_put_h264_chroma_mc8_10_sse2;
101  c->avg_h264_chroma_pixels_tab[0] = ff_avg_h264_chroma_mc8_10_sse2;
102  }
103 
104  if (EXTERNAL_SSSE3(cpu_flags) && !high_bit_depth) {
105  c->put_h264_chroma_pixels_tab[0] = ff_put_h264_chroma_mc8_rnd_ssse3;
106  c->avg_h264_chroma_pixels_tab[0] = ff_avg_h264_chroma_mc8_rnd_ssse3;
107  c->put_h264_chroma_pixels_tab[1] = ff_put_h264_chroma_mc4_ssse3;
108  c->avg_h264_chroma_pixels_tab[1] = ff_avg_h264_chroma_mc4_ssse3;
109  }
110 
111  if (EXTERNAL_AVX(cpu_flags) && bit_depth > 8 && bit_depth <= 10) {
112  // AVX implies !cache64.
113  // TODO: Port cache(32|64) detection from x264.
114  c->put_h264_chroma_pixels_tab[0] = ff_put_h264_chroma_mc8_10_avx;
115  c->avg_h264_chroma_pixels_tab[0] = ff_avg_h264_chroma_mc8_10_avx;
116  }
117 }
#define EXTERNAL_MMX(flags)
Definition: cpu.h:56
void ff_put_h264_chroma_mc4_mmx(uint8_t *dst, uint8_t *src, ptrdiff_t stride, int h, int x, int y)
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
Undefined Behavior In the C some operations are like signed integer dereferencing freed accessing outside allocated Undefined Behavior must not occur in a C it is not safe even if the output of undefined operations is unused The unsafety may seem nit picking but Optimizing compilers have in fact optimized code on the assumption that no undefined Behavior occurs Optimizing code based on wrong assumptions can and has in some cases lead to effects beyond the output of computations The signed integer overflow problem in speed critical code Code which is highly optimized and works with signed integers sometimes has the problem that often the output of the computation does not c
Definition: undefined.txt:32
void ff_put_h264_chroma_mc2_mmxext(uint8_t *dst, uint8_t *src, ptrdiff_t stride, int h, int x, int y)
#define EXTERNAL_SSE2(flags)
Definition: cpu.h:59
void ff_avg_h264_chroma_mc8_rnd_mmxext(uint8_t *dst, uint8_t *src, ptrdiff_t stride, int h, int x, int y)
static void bit_depth(AudioStatsContext *s, uint64_t mask, uint64_t imask, AVRational *depth)
Definition: af_astats.c:226
void ff_put_h264_chroma_mc4_ssse3(uint8_t *dst, uint8_t *src, ptrdiff_t stride, int h, int x, int y)
void ff_put_h264_chroma_mc8_rnd_mmx(uint8_t *dst, uint8_t *src, ptrdiff_t stride, int h, int x, int y)
av_cold void ff_h264chroma_init_x86(H264ChromaContext *c, int bit_depth)
void ff_avg_h264_chroma_mc8_rnd_ssse3(uint8_t *dst, uint8_t *src, ptrdiff_t stride, int h, int x, int y)
#define CHROMA_MC(OP, NUM, DEPTH, OPT)
#define EXTERNAL_SSSE3(flags)
Definition: cpu.h:65
void ff_avg_h264_chroma_mc4_3dnow(uint8_t *dst, uint8_t *src, ptrdiff_t stride, int h, int x, int y)
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition: cpu.c:93
void ff_avg_h264_chroma_mc4_mmxext(uint8_t *dst, uint8_t *src, ptrdiff_t stride, int h, int x, int y)
#define EXTERNAL_MMXEXT(flags)
Definition: cpu.h:57
#define avg(a, b, c, d)
GLint GLenum GLboolean GLsizei stride
Definition: opengl_enc.c:104
void ff_avg_h264_chroma_mc8_rnd_3dnow(uint8_t *dst, uint8_t *src, ptrdiff_t stride, int h, int x, int y)
void ff_avg_h264_chroma_mc2_mmxext(uint8_t *dst, uint8_t *src, ptrdiff_t stride, int h, int x, int y)
void ff_put_h264_chroma_mc8_rnd_ssse3(uint8_t *dst, uint8_t *src, ptrdiff_t stride, int h, int x, int y)
void ff_avg_h264_chroma_mc4_ssse3(uint8_t *dst, uint8_t *src, ptrdiff_t stride, int h, int x, int y)
#define EXTERNAL_AMD3DNOW(flags)
Definition: cpu.h:54
#define EXTERNAL_AVX(flags)
Definition: cpu.h:70