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move back common constants for lossless_enc*.c into the .h

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Change-Id: I11bc979db691f6518d85e2e1c3ac7f05d69681b0
This commit is contained in:
Pascal Massimino
2015-12-17 15:11:56 +01:00
parent fb4c7832f1
commit b0547ff0b4
3 changed files with 8 additions and 11 deletions
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8
src/dsp/lossless.h
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@ -174,6 +174,14 @@ static WEBP_INLINE uint32_t VP8LSubSampleSize(uint32_t size,
// -----------------------------------------------------------------------------
// Faster logarithm for integers. Small values use a look-up table.
// The threshold till approximate version of log_2 can be used.
// Practically, we can get rid of the call to log() as the two values match to
// very high degree (the ratio of these two is 0.99999x).
// Keeping a high threshold for now.
#define APPROX_LOG_WITH_CORRECTION_MAX 65536
#define APPROX_LOG_MAX 4096
#define LOG_2_RECIPROCAL 1.44269504088896338700465094007086
#define LOG_LOOKUP_IDX_MAX 256
extern const float kLog2Table[LOG_LOOKUP_IDX_MAX];
extern const float kSLog2Table[LOG_LOOKUP_IDX_MAX];