8 #ifndef SkDisplacementMapEffect_DEFINED
9 #define SkDisplacementMapEffect_DEFINED
11 #include "SkImageFilter.h"
15 enum ChannelSelectorType {
16 kUnknown_ChannelSelectorType,
17 kR_ChannelSelectorType,
18 kG_ChannelSelectorType,
19 kB_ChannelSelectorType,
20 kA_ChannelSelectorType
26 ChannelSelectorType yChannelSelector,
34 SkRect computeFastBounds(
const SkRect& src)
const override;
37 MapDirection)
const override;
41 SK_TO_STRING_OVERRIDE()
48 ChannelSelectorType yChannelSelector,
54 ChannelSelectorType fXChannelSelector;
55 ChannelSelectorType fYChannelSelector;
Definition: SkImageFilter.h:76
void flatten(SkWriteBuffer &) const override
Override this if your subclass needs to record data that it will need to recreate itself from its Cre...
The SkMatrix class holds a 3x3 matrix for transforming coordinates.
Definition: SkMatrix.h:28
virtual sk_sp< SkSpecialImage > onFilterImage(SkSpecialImage *src, const Context &, SkIPoint *offset) const =0
This is the virtual which should be overridden by the derived class to perform image filtering...
Definition: SkRefCnt.h:125
Base class for image filters.
Definition: SkImageFilter.h:36
SkImageFilter * getInput(int i) const
Returns the input filter at a given index, or NULL if no input is connected.
Definition: SkImageFilter.h:193
Definition: SkWriteBuffer.h:27
virtual SkIRect onFilterNodeBounds(const SkIRect &, const SkMatrix &, MapDirection) const
Performs a forwards or reverse mapping of the given rect to accommodate this filter's margin requirem...
virtual SkIRect onFilterBounds(const SkIRect &, const SkMatrix &, MapDirection) const
This function recurses into its inputs with the given rect (first argument), calls filterBounds() wit...
Definition: SkImageFilter.h:54
SkIRect holds four 32 bit integer coordinates for a rectangle.
Definition: SkRect.h:20
SkIPoint holds two 32 bit integer coordinates.
Definition: SkPoint.h:40
Definition: SkDisplacementMapEffect.h:13