diff options
Diffstat (limited to 'common/common.h')
| -rw-r--r-- | common/common.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/common/common.h b/common/common.h index dfb2ba7b7a..af01e38e10 100644 --- a/common/common.h +++ b/common/common.h @@ -43,6 +43,16 @@ // align must be a power of two (align >= 1), x >= 0 #define MP_ALIGN_UP(x, align) (((x) + (align) - 1) & ~((align) - 1)) #define MP_ALIGN_DOWN(x, align) ((x) & ~((align) - 1)) +#define MP_IS_ALIGNED(x, align) (!((x) & ((align) - 1))) +#define MP_IS_POWER_OF_2(x) ((x) > 0 && !((x) & ((x) - 1))) + +// Return "a", or if that is NOPTS, return "def". +#define MP_PTS_OR_DEF(a, def) ((a) == MP_NOPTS_VALUE ? (def) : (a)) +// If one of the values is NOPTS, always pick the other one. +#define MP_PTS_MIN(a, b) MPMIN(MP_PTS_OR_DEF(a, b), MP_PTS_OR_DEF(b, a)) +#define MP_PTS_MAX(a, b) MPMAX(MP_PTS_OR_DEF(a, b), MP_PTS_OR_DEF(b, a)) +// Return a+b, unless a is NOPTS. b must not be NOPTS. +#define MP_ADD_PTS(a, b) ((a) == MP_NOPTS_VALUE ? (a) : ((a) + (b))) #define CONTROL_OK 1 #define CONTROL_TRUE 1 @@ -77,6 +87,11 @@ void mp_rect_union(struct mp_rect *rc, const struct mp_rect *src); bool mp_rect_intersection(struct mp_rect *rc, const struct mp_rect *rc2); bool mp_rect_contains(struct mp_rect *rc, int x, int y); bool mp_rect_equals(struct mp_rect *rc1, struct mp_rect *rc2); +int mp_rect_subtract(const struct mp_rect *rc1, const struct mp_rect *rc2, + struct mp_rect res_array[4]); + +unsigned int mp_log2(uint32_t v); +uint32_t mp_round_next_power_of_2(uint32_t v); int mp_snprintf_cat(char *str, size_t size, const char *format, ...) PRINTF_ATTRIBUTE(3, 4); |