18 canvas->saveLayer(
nullptr,
nullptr);
25 canvas->saveLayer(
nullptr, &lumaFilter);
constexpr SkColor SK_ColorYELLOW
constexpr SkColor SK_ColorCYAN
constexpr SkColor SK_ColorTRANSPARENT
constexpr SkColor SK_ColorGRAY
void setBlendMode(SkBlendMode mode)
void setColorFilter(sk_sp< SkColorFilter > colorFilter)
#define DEF_SIMPLE_GM(NAME, CANVAS, W, H)
static sk_sp< SkColorFilter > Make()