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author | Moonchild <mcwerewolf@wolfbeast.com> | 2019-03-13 07:49:07 +0100 |
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committer | GitHub <noreply@github.com> | 2019-03-13 07:49:07 +0100 |
commit | bf0413359245579e9509146d42cd5547e35da695 (patch) | |
tree | 8218d4f60d9eccacbf42df8cb88094a082d401b4 /media/libwebp/utils/utils.h | |
parent | 51b821b3fdc5a7eab2369cb6a6680598a6264b08 (diff) | |
parent | 709bc24e9110eba12f94cfcb8db00a8338ac4098 (diff) | |
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Merge pull request #998 from MoonchildProductions/master
Merge master into Sync-weave
Diffstat (limited to 'media/libwebp/utils/utils.h')
-rw-r--r-- | media/libwebp/utils/utils.h | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/media/libwebp/utils/utils.h b/media/libwebp/utils/utils.h index 27dc7e090..d22151b0f 100644 --- a/media/libwebp/utils/utils.h +++ b/media/libwebp/utils/utils.h @@ -107,19 +107,6 @@ static WEBP_INLINE void PutLE32(uint8_t* const data, uint32_t val) { PutLE16(data + 2, (int)(val >> 16)); } -// Returns 31 ^ clz(n) = log2(n). This is the default C-implementation, either -// based on table or not. Can be used as fallback if clz() is not available. -#define WEBP_NEED_LOG_TABLE_8BIT -extern const uint8_t WebPLogTable8bit[256]; -static WEBP_INLINE int WebPLog2FloorC(uint32_t n) { - int log_value = 0; - while (n >= 256) { - log_value += 8; - n >>= 8; - } - return log_value + WebPLogTable8bit[n]; -} - // Returns (int)floor(log2(n)). n must be > 0. // use GNU builtins where available. #if defined(__GNUC__) && \ @@ -138,6 +125,19 @@ static WEBP_INLINE int BitsLog2Floor(uint32_t n) { return first_set_bit; } #else // default: use the C-version. +// Returns 31 ^ clz(n) = log2(n). This is the default C-implementation, either +// based on table or not. Can be used as fallback if clz() is not available. +#define WEBP_NEED_LOG_TABLE_8BIT +extern const uint8_t WebPLogTable8bit[256]; +static WEBP_INLINE int WebPLog2FloorC(uint32_t n) { + int log_value = 0; + while (n >= 256) { + log_value += 8; + n >>= 8; + } + return log_value + WebPLogTable8bit[n]; +} + static WEBP_INLINE int BitsLog2Floor(uint32_t n) { return WebPLog2FloorC(n); } #endif @@ -175,4 +175,4 @@ WEBP_EXTERN int WebPGetColorPalette(const struct WebPPicture* const pic, } // extern "C" #endif -#endif /* WEBP_UTILS_UTILS_H_ */ +#endif // WEBP_UTILS_UTILS_H_ |