diff options
Diffstat (limited to 'thirdparty/pvrtccompressor/BitUtility.h')
-rw-r--r-- | thirdparty/pvrtccompressor/BitUtility.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/thirdparty/pvrtccompressor/BitUtility.h b/thirdparty/pvrtccompressor/BitUtility.h new file mode 100644 index 0000000000..588ff3e892 --- /dev/null +++ b/thirdparty/pvrtccompressor/BitUtility.h @@ -0,0 +1,19 @@ +#pragma once + +namespace Javelin { + +class BitUtility { +public: + static bool IsPowerOf2(unsigned int x) { + return (x & (x - 1)) == 0; + } + + static unsigned int RotateRight(unsigned int value, unsigned int shift) { + if ((shift &= sizeof(value) * 8 - 1) == 0) { + return value; + } + return (value >> shift) | (value << (sizeof(value) * 8 - shift)); + } +}; + +} |