REG_FIDDLE(Image_isAlphaOnly, 256, 256, true, 0)
void SK_SPI SkDebugf(const char format[],...) SK_PRINTF_LIKE(1
static void draw(SkCanvas *canvas, SkRect &target, int x, int y)
SK_API sk_sp< SkImage > RasterFromPixmapCopy(const SkPixmap &pixmap)
sk_sp< const SkImage > image
static SkImageInfo MakeA8(int width, int height)