Skia
2DGraphicsLibrary
|
Public Member Functions | |
SK_DECLARE_FLATTENABLE_REGISTRAR_GROUP () | |
Static Public Member Functions | |
static sk_sp< SkImageFilter > | Make (const SkRegion ®ion, SkScalar innerMin, SkScalar outerMax, sk_sp< SkImageFilter > input, const SkImageFilter::CropRect *cropRect=nullptr) |
Creates an image filter that samples a region. More... | |
|
static |
Creates an image filter that samples a region.
If the sample is inside the region the alpha of the image is boosted up to a threshold value. If it is outside the region then the alpha is decreased to the threshold value. The 0,0 point of the region corresponds to the upper left corner of the source image.