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/AliOS-Things-master/components/SDL2/src/image/external/libwebp-1.0.2/src/enc/
A Dpicture_csp_enc.c736 uint32_t total_a, int step, in LinearToGammaWeighted() argument
743 assert(total_a > 0 && total_a <= 4 * 0xff); in LinearToGammaWeighted()
745 assert((uint64_t)sum * kInvAlpha[total_a] < ((uint64_t)1 << 32)); in LinearToGammaWeighted()
747 return LinearToGamma(DIVIDE_BY_ALPHA(sum, total_a), 0); in LinearToGammaWeighted()

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