|
|
|
#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 */
|