1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
|
#ifndef INTREADWRITE_H
#define INTREADWRITE_H
#ifdef __GNUC__
struct unaligned_64 { uint64_t l; } __attribute__((packed));
struct unaligned_32 { uint32_t l; } __attribute__((packed));
struct unaligned_16 { uint16_t l; } __attribute__((packed));
#define LD16(a) (((const struct unaligned_16 *) (a))->l)
#define LD32(a) (((const struct unaligned_32 *) (a))->l)
#define LD64(a) (((const struct unaligned_64 *) (a))->l)
#define ST16(a, b) (((struct unaligned_16 *) (a))->l) = (b)
#define ST32(a, b) (((struct unaligned_32 *) (a))->l) = (b)
#else /* __GNUC__ */
#define LD16(a) (*((uint16_t*)(a)))
#define LD32(a) (*((uint32_t*)(a)))
#define LD64(a) (*((uint64_t*)(a)))
#define ST16(a, b) *((uint16_t*)(a)) = (b)
#define ST32(a, b) *((uint32_t*)(a)) = (b)
#endif /* !__GNUC__ */
/* endian macros */
#define AV_RB8(x) (((uint8_t*)(x))[0])
#define AV_WB8(p, i, d) { ((uint8_t*)(p))[(i)] = (d); }
#define AV_RB16(x) ((((uint8_t*)(x))[0] << 8) | ((uint8_t*)(x))[1])
#define AV_WB16(p, i, d) { \
((uint8_t*)(p))[(i)+1] = (d); \
((uint8_t*)(p))[(i)] = (d)>>8; }
#define AV_RB32(x) ((((uint8_t*)(x))[0] << 24) | \
(((uint8_t*)(x))[1] << 16) | \
(((uint8_t*)(x))[2] << 8) | \
((uint8_t*)(x))[3])
#define AV_WB32(p, i, d) { \
((uint8_t*)(p))[(i)+3] = (d); \
((uint8_t*)(p))[(i)+2] = (d)>>8; \
((uint8_t*)(p))[(i)+1] = (d)>>16; \
((uint8_t*)(p))[(i)] = (d)>>24; }
#define AV_RL8(x) AV_RB8(x)
#define AV_WL8(p, i, d) AV_WB8(p, i, d)
#define AV_RL16(x) ((((uint8_t*)(x))[1] << 8) | ((uint8_t*)(x))[0])
#define AV_WL16(p, i, d) { \
((uint8_t*)(p))[(i)] = (d); \
((uint8_t*)(p))[(i)+1] = (d)>>8; }
#define AV_RL32(x) ((((uint8_t*)(x))[3] << 24) | \
(((uint8_t*)(x))[2] << 16) | \
(((uint8_t*)(x))[1] << 8) | \
((uint8_t*)(x))[0])
#define AV_WL32(p, i, d) { \
((uint8_t*)(p))[(i)] = (d); \
((uint8_t*)(p))[(i)+1] = (d)>>8; \
((uint8_t*)(p))[(i)+2] = (d)>>16; \
((uint8_t*)(p))[(i)+3] = (d)>>24; }
#endif /* INTREADWRITE_H */
|
