diff options
| -rw-r--r-- | common/common.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/common/common.c b/common/common.c index 5068995ded..0552bddda4 100644 --- a/common/common.c +++ b/common/common.c @@ -344,9 +344,10 @@ unsigned int mp_log2(uint32_t v) // mp_round_next_power_of_2(UINT32_MAX) == 0 uint32_t mp_round_next_power_of_2(uint32_t v) { - for (int n = 0; n < 30; n++) { - if ((1 << n) >= v) - return 1 << n; - } - return 0; + if (!v) + return 1; + if (!(v & (v - 1))) + return v; + int l = mp_log2(v) + 1; + return l == 32 ? 0 : (uint32_t)1 << l; } |