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bit_util: Add SwapHalves32

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MerryMage 2021-02-06 21:23:56 +00:00
parent fa1b9545fd
commit aa89418e8b
1 changed files with 5 additions and 0 deletions
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5
src/common/bit_util.h
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@ -218,6 +218,11 @@ constexpr T RotateRight(T value, size_t amount) {
return static_cast<T>((x >> amount) | (x << (BitSize<T>() - amount))); return static_cast<T>((x >> amount) | (x << (BitSize<T>() - amount)));
} }
constexpr u32 SwapHalves32(u32 value) {
return ((value & 0xFFFF0000U) >> 16) |
((value & 0x0000FFFFU) << 16);
}
constexpr u16 SwapBytes16(u16 value) { constexpr u16 SwapBytes16(u16 value) {
return static_cast<u16>(u32{value} >> 8 | u32{value} << 8); return static_cast<u16>(u32{value} >> 8 | u32{value} << 8);
} }