ALIGN_MASK 547 third_party/libwebp/dec/frame.c + cache_size + alpha_size + ALIGN_MASK; ALIGN_MASK 584 third_party/libwebp/dec/frame.c mem = (uint8_t*)((uintptr_t)(mem + ALIGN_MASK) & ~ALIGN_MASK); ALIGN_MASK 585 third_party/libwebp/dec/frame.c assert((yuv_size & ALIGN_MASK) == 0);