1 typedef unsigned int uint32_t; 2 3 extern const uint32_t gMask_00FF00FF; 4 5 uint32_t SkAlphaMulQ(uint32_t c, unsigned scale) { 6 uint32_t mask = gMask_00FF00FF; 7 8 uint32_t rb = ((c & mask) * scale) >> 8; 9 uint32_t ag = ((c >> 8) & mask) * scale; 10 return (rb & mask) | (ag & ~mask); 11 } 12 13 int main() 14 { 15 } 16
