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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 INIT_CLIP
33 # undef no_rnd_avg_pixel4
34 # undef rnd_avg_pixel4
35 # undef AV_RN2P
36 # undef AV_RN4P
37 # undef AV_RN4PA
38 # undef AV_WN2P
39 # undef AV_WN4P
40 # undef AV_WN4PA
41 # undef CLIP
42 # undef FUNC
43 # undef FUNCC
44 # undef av_clip_pixel
45 # undef PIXEL_SPLAT_X4
46 #else
47 # define AVCODEC_BIT_DEPTH_TEMPLATE_C
48 #endif
49 
50 #if BIT_DEPTH > 8
51 # define pixel uint16_t
52 # define pixel2 uint32_t
53 # define pixel4 uint64_t
54 # define dctcoef int32_t
55 
56 # define INIT_CLIP
57 # define no_rnd_avg_pixel4 no_rnd_avg64
58 # define rnd_avg_pixel4 rnd_avg64
59 # define AV_RN2P AV_RN32
60 # define AV_RN4P AV_RN64
61 # define AV_RN4PA AV_RN64A
62 # define AV_WN2P AV_WN32
63 # define AV_WN4P AV_WN64
64 # define AV_WN4PA AV_WN64A
65 # define PIXEL_SPLAT_X4(x) ((x)*0x0001000100010001ULL)
66 
67 # define av_clip_pixel(a) av_clip_uintp2(a, BIT_DEPTH)
68 # define CLIP(a) av_clip_uintp2(a, BIT_DEPTH)
69 #else
70 # define pixel uint8_t
71 # define pixel2 uint16_t
72 # define pixel4 uint32_t
73 # define dctcoef int16_t
74 
75 # define INIT_CLIP
76 # define no_rnd_avg_pixel4 no_rnd_avg32
77 # define rnd_avg_pixel4 rnd_avg32
78 # define AV_RN2P AV_RN16
79 # define AV_RN4P AV_RN32
80 # define AV_RN4PA AV_RN32A
81 # define AV_WN2P AV_WN16
82 # define AV_WN4P AV_WN32
83 # define AV_WN4PA AV_WN32A
84 # define PIXEL_SPLAT_X4(x) ((x)*0x01010101U)
85 
86 # define av_clip_pixel(a) av_clip_uint8(a)
87 # define CLIP(a) av_clip_uint8(a)
88 #endif
89 
90 #define FUNC3(a, b, c) a ## _ ## b ## c
91 #define FUNC2(a, b, c) FUNC3(a, b, c)
92 #define FUNC(a) FUNC2(a, BIT_DEPTH,)
93 #define FUNCC(a) FUNC2(a, BIT_DEPTH, _c)