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#ifndef _SkTestImageFilters_h
#define _SkTestImageFilters_h
#include "SkImageFilter.h"
#include "SkPoint.h"
class SkOffsetImageFilter : public SkImageFilter {
public:
SkOffsetImageFilter(SkScalar dx, SkScalar dy) {
fOffset.set(dx, dy);
}
SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkOffsetImageFilter)
protected:
SkOffsetImageFilter(SkFlattenableReadBuffer& buffer);
virtual void flatten(SkFlattenableWriteBuffer&) const SK_OVERRIDE;
virtual bool onFilterImage(Proxy*, const SkBitmap& src, const SkMatrix&,
SkBitmap* result, SkIPoint* loc) SK_OVERRIDE;
virtual bool onFilterBounds(const SkIRect&, const SkMatrix&, SkIRect*) SK_OVERRIDE;
private:
SkVector fOffset;
typedef SkImageFilter INHERITED;
};
class SkComposeImageFilter : public SkImageFilter {
public:
SkComposeImageFilter(SkImageFilter* outer, SkImageFilter* inner) {
fOuter = outer;
fInner = inner;
SkSafeRef(outer);
SkSafeRef(inner);
}
virtual ~SkComposeImageFilter();
SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkComposeImageFilter)
protected:
SkComposeImageFilter(SkFlattenableReadBuffer& buffer);
virtual void flatten(SkFlattenableWriteBuffer&) const SK_OVERRIDE;
virtual bool onFilterImage(Proxy*, const SkBitmap& src, const SkMatrix&,
SkBitmap* result, SkIPoint* loc) SK_OVERRIDE;
virtual bool onFilterBounds(const SkIRect&, const SkMatrix&, SkIRect*) SK_OVERRIDE;
private:
SkImageFilter* fOuter;
SkImageFilter* fInner;
typedef SkImageFilter INHERITED;
};
#include "SkXfermode.h"
class SkMergeImageFilter : public SkImageFilter {
public:
SkMergeImageFilter(SkImageFilter* first, SkImageFilter* second,
SkXfermode::Mode = SkXfermode::kSrcOver_Mode);
SkMergeImageFilter(SkImageFilter* const filters[], int count,
const SkXfermode::Mode modes[] = NULL);
virtual ~SkMergeImageFilter();
SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkMergeImageFilter)
protected:
SkMergeImageFilter(SkFlattenableReadBuffer& buffer);
virtual void flatten(SkFlattenableWriteBuffer&) const SK_OVERRIDE;
virtual bool onFilterImage(Proxy*, const SkBitmap& src, const SkMatrix&,
SkBitmap* result, SkIPoint* loc) SK_OVERRIDE;
virtual bool onFilterBounds(const SkIRect&, const SkMatrix&, SkIRect*) SK_OVERRIDE;
private:
SkImageFilter** fFilters;
uint8_t* fModes; // SkXfermode::Mode
int fCount;
// private storage, to avoid dynamically allocating storage for our copy
// of the filters and modes (unless fCount is so large we can't fit).
intptr_t fStorage[16];
void initAlloc(int count, bool hasModes);
void init(SkImageFilter* const [], int count, const SkXfermode::Mode []);
typedef SkImageFilter INHERITED;
};
///////////////////////////////////////////////////////////////////////////////
// Fun mode that scales down (only) and then scales back up to look pixelated
class SkDownSampleImageFilter : public SkImageFilter {
public:
SkDownSampleImageFilter(SkScalar scale) : fScale(scale) {}
SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkDownSampleImageFilter)
protected:
SkDownSampleImageFilter(SkFlattenableReadBuffer& buffer);
virtual void flatten(SkFlattenableWriteBuffer&) const SK_OVERRIDE;
virtual bool onFilterImage(Proxy*, const SkBitmap& src, const SkMatrix&,
SkBitmap* result, SkIPoint* loc) SK_OVERRIDE;
private:
SkScalar fScale;
typedef SkImageFilter INHERITED;
};
#endif
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