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author | wolfbeast <mcwerewolf@wolfbeast.com> | 2019-01-29 09:40:44 +0100 |
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committer | wolfbeast <mcwerewolf@wolfbeast.com> | 2019-01-29 09:40:44 +0100 |
commit | 1a04d73a129926d54e13ac9d947062b221f0bacd (patch) | |
tree | f7bb70c9928ad16a56e2532f9d98aece61dbe1c4 /media/libwebp/utils/utils.h | |
parent | 1f9ab3a6e6e3f1e79b482c0540c98859bbc71350 (diff) | |
parent | 7f992d50e417b0c2f18259ce2353e3ead4870694 (diff) | |
download | UXP-1a04d73a129926d54e13ac9d947062b221f0bacd.tar UXP-1a04d73a129926d54e13ac9d947062b221f0bacd.tar.gz UXP-1a04d73a129926d54e13ac9d947062b221f0bacd.tar.lz UXP-1a04d73a129926d54e13ac9d947062b221f0bacd.tar.xz UXP-1a04d73a129926d54e13ac9d947062b221f0bacd.zip |
Merge branch 'master' into cycle_collector-work
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_ |