FFmpeg
bit_depth_template.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 "mathops.h"
20 #include "rnd_avg.h"
21 #include "libavutil/intreadwrite.h"
22 
23 #ifndef BIT_DEPTH
24 #define BIT_DEPTH 8
25 #endif
26 
27 #ifdef AVCODEC_BIT_DEPTH_TEMPLATE_C
28 # undef pixel
29 # undef pixel2
30 # undef pixel4
31 # undef dctcoef
32 # undef idctin
33 # undef INIT_CLIP
34 # undef no_rnd_avg_pixel4
35 # undef rnd_avg_pixel4
36 # undef AV_RN2P
37 # undef AV_RN4P
38 # undef AV_RN4PA
39 # undef AV_WN2P
40 # undef AV_WN4P
41 # undef AV_WN4PA
42 # undef CLIP
43 # undef FUNC
44 # undef FUNCC
45 # undef av_clip_pixel
46 # undef PIXEL_SPLAT_X4
47 #else
48 # define AVCODEC_BIT_DEPTH_TEMPLATE_C
49 #endif
50 
51 #if BIT_DEPTH > 8
52 # define pixel uint16_t
53 # define pixel2 uint32_t
54 # define pixel4 uint64_t
55 # define dctcoef int32_t
56 
57 #ifdef IN_IDCT_DEPTH
58 #if IN_IDCT_DEPTH == 32
59 # define idctin int32_t
60 #else
61 # define idctin int16_t
62 #endif
63 #else
64 # define idctin int16_t
65 #endif
66 
67 # define INIT_CLIP
68 # define no_rnd_avg_pixel4 no_rnd_avg64
69 # define rnd_avg_pixel4 rnd_avg64
70 # define AV_RN2P AV_RN32
71 # define AV_RN4P AV_RN64
72 # define AV_RN4PA AV_RN64A
73 # define AV_WN2P AV_WN32
74 # define AV_WN4P AV_WN64
75 # define AV_WN4PA AV_WN64A
76 # define PIXEL_SPLAT_X4(x) ((x)*0x0001000100010001ULL)
77 
78 # define av_clip_pixel(a) av_clip_uintp2(a, BIT_DEPTH)
79 # define CLIP(a) av_clip_uintp2(a, BIT_DEPTH)
80 #else
81 # define pixel uint8_t
82 # define pixel2 uint16_t
83 # define pixel4 uint32_t
84 # define dctcoef int16_t
85 # define idctin int16_t
86 
87 # define INIT_CLIP
88 # define no_rnd_avg_pixel4 no_rnd_avg32
89 # define rnd_avg_pixel4 rnd_avg32
90 # define AV_RN2P AV_RN16
91 # define AV_RN4P AV_RN32
92 # define AV_RN4PA AV_RN32A
93 # define AV_WN2P AV_WN16
94 # define AV_WN4P AV_WN32
95 # define AV_WN4PA AV_WN32A
96 # define PIXEL_SPLAT_X4(x) ((x)*0x01010101U)
97 
98 # define av_clip_pixel(a) av_clip_uint8(a)
99 # define CLIP(a) av_clip_uint8(a)
100 #endif
101 
102 #define FUNC3(a, b, c) a ## _ ## b ## c
103 #define FUNC2(a, b, c) FUNC3(a, b, c)
104 #define FUNC(a) FUNC2(a, BIT_DEPTH,)
105 #define FUNCC(a) FUNC2(a, BIT_DEPTH, _c)
106 #define FUNC4(a, b, c) a ## _int ## b ## _ ## c ## bit
107 #define FUNC5(a, b, c) FUNC4(a, b, c)
108 #define FUNC6(a) FUNC5(a, IN_IDCT_DEPTH, BIT_DEPTH)