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 
27 void ff_put_h264_chroma_mc8_rnd_mmx  (uint8_t *dst, uint8_t *src,
28                                       ptrdiff_t stride, int h, int x, int y);
29 void ff_avg_h264_chroma_mc8_rnd_mmxext(uint8_t *dst, uint8_t *src,
30                                        ptrdiff_t stride, int h, int x, int y);
31 void ff_avg_h264_chroma_mc8_rnd_3dnow(uint8_t *dst, uint8_t *src,
32                                       ptrdiff_t stride, int h, int x, int y);
33 
34 void ff_put_h264_chroma_mc4_mmx      (uint8_t *dst, uint8_t *src,
35                                       ptrdiff_t stride, int h, int x, int y);
36 void ff_avg_h264_chroma_mc4_mmxext   (uint8_t *dst, uint8_t *src,
37                                       ptrdiff_t stride, int h, int x, int y);
38 void ff_avg_h264_chroma_mc4_3dnow    (uint8_t *dst, uint8_t *src,
39                                       ptrdiff_t stride, int h, int x, int y);
40 
41 void ff_put_h264_chroma_mc2_mmxext   (uint8_t *dst, uint8_t *src,
42                                       ptrdiff_t stride, int h, int x, int y);
43 void ff_avg_h264_chroma_mc2_mmxext   (uint8_t *dst, uint8_t *src,
44                                       ptrdiff_t stride, int h, int x, int y);
45 
46 void ff_put_h264_chroma_mc8_rnd_ssse3(uint8_t *dst, uint8_t *src,
47                                       ptrdiff_t stride, int h, int x, int y);
48 void ff_put_h264_chroma_mc4_ssse3    (uint8_t *dst, uint8_t *src,
49                                       ptrdiff_t stride, int h, int x, int y);
50 
51 void ff_avg_h264_chroma_mc8_rnd_ssse3(uint8_t *dst, uint8_t *src,
52                                       ptrdiff_t stride, int h, int x, int y);
53 void ff_avg_h264_chroma_mc4_ssse3    (uint8_t *dst, uint8_t *src,
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 
ff_h264chroma_init_x86(H264ChromaContext * c,int bit_depth)70 av_cold void ff_h264chroma_init_x86(H264ChromaContext *c, int bit_depth)
71 {
72     int high_bit_depth = bit_depth > 8;
73     int cpu_flags      = av_get_cpu_flags();
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 }
118