path: root/libavfilter/colorspacedsp.c (plain)
blob: b8ba5c06e494a3218a84011ec2264e6205f0ea01

1	/*
2	* Copyright (c) 2016 Ronald S. Bultje <rsbultje@gmail.com>
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 "colorspacedsp.h"
22
23	/*
24	* SS_W/H stands for "subsampling_w/h"
25	* it's analogous to AVPixFmtDescriptor->log2_chroma_w/h.
26	*/
27	#define SS_W 0
28	#define SS_H 0
29
30	#define BIT_DEPTH 8
31	#include "colorspacedsp_template.c"
32
33	#undef BIT_DEPTH
34	#define BIT_DEPTH 10
35	#include "colorspacedsp_template.c"
36
37	#undef BIT_DEPTH
38	#define BIT_DEPTH 12
39	#include "colorspacedsp_template.c"
40
41	#undef SS_W
42	#undef SS_H
43
44	#define SS_W 1
45	#define SS_H 0
46
47	#undef BIT_DEPTH
48	#define BIT_DEPTH 8
49	#include "colorspacedsp_template.c"
50
51	#undef BIT_DEPTH
52	#define BIT_DEPTH 10
53	#include "colorspacedsp_template.c"
54
55	#undef BIT_DEPTH
56	#define BIT_DEPTH 12
57	#include "colorspacedsp_template.c"
58
59	#undef SS_W
60	#undef SS_H
61
62	#define SS_W 1
63	#define SS_H 1
64
65	#undef BIT_DEPTH
66	#define BIT_DEPTH 8
67	#include "colorspacedsp_template.c"
68
69	#undef BIT_DEPTH
70	#define BIT_DEPTH 10
71	#include "colorspacedsp_template.c"
72
73	#undef BIT_DEPTH
74	#define BIT_DEPTH 12
75	#include "colorspacedsp_template.c"
76
77	static void multiply3x3_c(int16_t *buf[3], ptrdiff_t stride,
78	int w, int h, const int16_t m[3][3][8])
79	{
80	int y, x;
81	int16_t *buf0 = buf[0], *buf1 = buf[1], *buf2 = buf[2];
82
83	for (y = 0; y < h; y++) {
84	for (x = 0; x < w; x++) {
85	int v0 = buf0[x], v1 = buf1[x], v2 = buf2[x];
86
87	buf0[x] = av_clip_int16((m[0][0][0] * v0 + m[0][1][0] * v1 +
88	m[0][2][0] * v2 + 8192) >> 14);
89	buf1[x] = av_clip_int16((m[1][0][0] * v0 + m[1][1][0] * v1 +
90	m[1][2][0] * v2 + 8192) >> 14);
91	buf2[x] = av_clip_int16((m[2][0][0] * v0 + m[2][1][0] * v1 +
92	m[2][2][0] * v2 + 8192) >> 14);
93	}
94
95	buf0 += stride;
96	buf1 += stride;
97	buf2 += stride;
98	}
99	}
100
101	void ff_colorspacedsp_init(ColorSpaceDSPContext *dsp)
102	{
103	#define init_yuv2rgb_fn(bit) \
104	dsp->yuv2rgb[BPP_##bit][SS_444] = yuv2rgb_444p##bit##_c; \
105	dsp->yuv2rgb[BPP_##bit][SS_422] = yuv2rgb_422p##bit##_c; \
106	dsp->yuv2rgb[BPP_##bit][SS_420] = yuv2rgb_420p##bit##_c
107
108	init_yuv2rgb_fn( 8);
109	init_yuv2rgb_fn(10);
110	init_yuv2rgb_fn(12);
111
112	#define init_rgb2yuv_fn(bit) \
113	dsp->rgb2yuv[BPP_##bit][SS_444] = rgb2yuv_444p##bit##_c; \
114	dsp->rgb2yuv[BPP_##bit][SS_422] = rgb2yuv_422p##bit##_c; \
115	dsp->rgb2yuv[BPP_##bit][SS_420] = rgb2yuv_420p##bit##_c
116
117	init_rgb2yuv_fn( 8);
118	init_rgb2yuv_fn(10);
119	init_rgb2yuv_fn(12);
120
121	#define init_rgb2yuv_fsb_fn(bit) \
122	dsp->rgb2yuv_fsb[BPP_##bit][SS_444] = rgb2yuv_fsb_444p##bit##_c; \
123	dsp->rgb2yuv_fsb[BPP_##bit][SS_422] = rgb2yuv_fsb_422p##bit##_c; \
124	dsp->rgb2yuv_fsb[BPP_##bit][SS_420] = rgb2yuv_fsb_420p##bit##_c
125
126	init_rgb2yuv_fsb_fn( 8);
127	init_rgb2yuv_fsb_fn(10);
128	init_rgb2yuv_fsb_fn(12);
129
130	#define init_yuv2yuv_fn(idx1, bit1, bit2) \
131	dsp->yuv2yuv[idx1][BPP_##bit2][SS_444] = yuv2yuv_444p##bit1##to##bit2##_c; \
132	dsp->yuv2yuv[idx1][BPP_##bit2][SS_422] = yuv2yuv_422p##bit1##to##bit2##_c; \
133	dsp->yuv2yuv[idx1][BPP_##bit2][SS_420] = yuv2yuv_420p##bit1##to##bit2##_c
134	#define init_yuv2yuv_fns(bit1) \
135	init_yuv2yuv_fn(BPP_##bit1, bit1, 8); \
136	init_yuv2yuv_fn(BPP_##bit1, bit1, 10); \
137	init_yuv2yuv_fn(BPP_##bit1, bit1, 12)
138
139	init_yuv2yuv_fns( 8);
140	init_yuv2yuv_fns(10);
141	init_yuv2yuv_fns(12);
142
143	dsp->multiply3x3 = multiply3x3_c;
144
145	if (ARCH_X86)
146	ff_colorspacedsp_x86_init(dsp);
147	}
148