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- diff --git a/thirdparty/libwebp/sharpyuv/sharpyuv_gamma.c b/thirdparty/libwebp/sharpyuv/sharpyuv_gamma.c
- index 09028428ac..6f1a88bf1a 100644
- --- a/thirdparty/libwebp/sharpyuv/sharpyuv_gamma.c
- +++ b/thirdparty/libwebp/sharpyuv/sharpyuv_gamma.c
- @@ -26,7 +26,11 @@ static uint32_t kGammaToLinearTabS[GAMMA_TO_LINEAR_TAB_SIZE + 2];
- #define LINEAR_TO_GAMMA_TAB_SIZE (1 << LINEAR_TO_GAMMA_TAB_BITS)
- static uint32_t kLinearToGammaTabS[LINEAR_TO_GAMMA_TAB_SIZE + 2];
-
- +#if defined(_MSC_VER)
- +static const double kGammaF = 2.222222222222222;
- +#else
- static const double kGammaF = 1. / 0.45;
- +#endif
- #define GAMMA_TO_LINEAR_BITS 16
-
- static volatile int kGammaTablesSOk = 0;
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