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/AliOS-Things-master/components/SDL2/src/image/external/libwebp-1.0.2/src/enc/
A Dpicture_csp_enc.c579 #define SUM2ALPHA(ptr) ((ptr)[0] + (ptr)[rgb_stride]) macro
580 #define SUM4ALPHA(ptr) (SUM2ALPHA(ptr) + SUM2ALPHA((ptr) + 4))
789 const uint32_t a = 2u * SUM2ALPHA(a_ptr + j); in AccumulateRGBA()
986 #undef SUM2ALPHA

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