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Added rounding functions.

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This commit is contained in:
David Williams 2012-11-25 00:04:18 +01:00
parent f5b638957c
commit bd00c8e572
1 changed files with 13 additions and 0 deletions
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13
library/PolyVoxCore/include/PolyVoxCore/Impl/Utility.h
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@ -32,6 +32,19 @@ namespace PolyVox
{ {
POLYVOX_API uint8_t logBase2(uint32_t uInput); POLYVOX_API uint8_t logBase2(uint32_t uInput);
POLYVOX_API bool isPowerOf2(uint32_t uInput); POLYVOX_API bool isPowerOf2(uint32_t uInput);
int32_t roundTowardsNegInf(float r);
int32_t roundToInteger(float r);
inline int32_t roundTowardsNegInf(float r)
{
return (r > 0.0) ? static_cast<int32_t>(r) : static_cast<int32_t>(r - 1.0f);
}
inline int32_t roundToNearestInteger(float r)
{
return (r > 0.0) ? static_cast<int32_t>(r + 0.5f) : static_cast<int32_t>(r - 0.5f);
}
} }
#endif #endif