1 /*
2 * Copyright © 2018, VideoLAN and dav1d authors
3 * Copyright © 2018, Two Orioles, LLC
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright notice, this
10 * list of conditions and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright notice,
13 * this list of conditions and the following disclaimer in the documentation
14 * and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28 #ifndef DAV1D_COMMON_BITDEPTH_H
29 #define DAV1D_COMMON_BITDEPTH_H
30
31 #include <stdint.h>
32 #include <string.h>
33
34 #include "common/attributes.h"
35
36 #if !defined(BITDEPTH)
37 typedef uint8_t pixel; /* can't be void due to pointer-to-array usage */
38 typedef void coef;
39 #define HIGHBD_DECL_SUFFIX /* nothing */
40 #define HIGHBD_CALL_SUFFIX /* nothing */
41 #define HIGHBD_TAIL_SUFFIX /* nothing */
42 #elif BITDEPTH == 8
43 typedef uint8_t pixel;
44 typedef int16_t coef;
45 #define PIXEL_TYPE uint8_t
46 #define COEF_TYPE int16_t
47 #define pixel_copy memcpy
48 #define pixel_set memset
49 #define iclip_pixel iclip_u8
50 #define PIX_HEX_FMT "%02x"
51 #define bitfn(x) x##_8bpc
52 #define BF(x, suffix) x##_8bpc_##suffix
53 #define PXSTRIDE(x) (x)
54 #define highbd_only(x)
55 #define HIGHBD_DECL_SUFFIX /* nothing */
56 #define HIGHBD_CALL_SUFFIX /* nothing */
57 #define HIGHBD_TAIL_SUFFIX /* nothing */
58 #define bitdepth_from_max(x) 8
59 #define BITDEPTH_MAX 0xff
60 #elif BITDEPTH == 16
61 typedef uint16_t pixel;
62 typedef int32_t coef;
63 #define PIXEL_TYPE uint16_t
64 #define COEF_TYPE int32_t
65 #define pixel_copy(a, b, c) memcpy(a, b, (c) << 1)
pixel_set(pixel * const dst,const int val,const int num)66 static inline void pixel_set(pixel *const dst, const int val, const int num) {
67 for (int n = 0; n < num; n++)
68 dst[n] = val;
69 }
70 #define PIX_HEX_FMT "%03x"
71 #define iclip_pixel(x) iclip(x, 0, bitdepth_max)
72 #define HIGHBD_DECL_SUFFIX , const int bitdepth_max
73 #define HIGHBD_CALL_SUFFIX , f->bitdepth_max
74 #define HIGHBD_TAIL_SUFFIX , bitdepth_max
75 #define bitdepth_from_max(bitdepth_max) (32 - clz(bitdepth_max))
76 #define BITDEPTH_MAX bitdepth_max
77 #define bitfn(x) x##_16bpc
78 #define BF(x, suffix) x##_16bpc_##suffix
PXSTRIDE(const ptrdiff_t x)79 static inline ptrdiff_t PXSTRIDE(const ptrdiff_t x) {
80 assert(!(x & 1));
81 return x >> 1;
82 }
83 #define highbd_only(x) x
84 #else
85 #error invalid value for bitdepth
86 #endif
87 #define bytefn(x) bitfn(x)
88
89 #define bitfn_decls(name, ...) \
90 name##_8bpc(__VA_ARGS__); \
91 name##_16bpc(__VA_ARGS__)
92
93 #endif /* DAV1D_COMMON_BITDEPTH_H */
94