diff options
Diffstat (limited to 'include/core/SkMath.h')
| -rw-r--r-- | include/core/SkMath.h | 22 |
1 files changed, 5 insertions, 17 deletions
diff --git a/include/core/SkMath.h b/include/core/SkMath.h index 2da1a3a921..cee3257197 100644 --- a/include/core/SkMath.h +++ b/include/core/SkMath.h @@ -40,24 +40,12 @@ int32_t SkSqrtBits(int32_t value, int bitBias); //! Returns the number of leading zero bits (0...32) int SkCLZ_portable(uint32_t); +#if defined(SK_CPU_ARM) + #define SkCLZ(x) __builtin_clz(x) +#endif + #ifndef SkCLZ - #if defined(_MSC_VER) && _MSC_VER >= 1400 - #include <intrin.h> - - static inline int SkCLZ(uint32_t mask) { - if (mask) { - DWORD index; - _BitScanReverse(&index, mask); - return index ^ 0x1F; - } else { - return 32; - } - } - #elif defined(SK_CPU_ARM) || defined(__GNUC__) - #define SkCLZ(x) __builtin_clz(x) - #else - #define SkCLZ(x) SkCLZ_portable(x) - #endif + #define SkCLZ(x) SkCLZ_portable(x) #endif /** |