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/*
* Copyright 2011 The Android Open Source Project
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkBlurImageFilter_DEFINED
#define SkBlurImageFilter_DEFINED
#include "SkImageFilter.h"
#include "SkSize.h"
class SK_API SkBlurImageFilter : public SkImageFilter {
public:
static SkBlurImageFilter* Create(SkScalar sigmaX,
SkScalar sigmaY,
SkImageFilter* input = NULL,
const CropRect* cropRect = NULL) {
return SkNEW_ARGS(SkBlurImageFilter, (sigmaX, sigmaY, input, cropRect));
}
void computeFastBounds(const SkRect&, SkRect*) const SK_OVERRIDE;
SK_TO_STRING_OVERRIDE()
SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkBlurImageFilter)
protected:
SkBlurImageFilter(SkScalar sigmaX,
SkScalar sigmaY,
SkImageFilter* input,
const CropRect* cropRect);
void flatten(SkWriteBuffer&) const SK_OVERRIDE;
virtual bool onFilterImage(Proxy*, const SkBitmap& src, const Context&,
SkBitmap* result, SkIPoint* offset) const SK_OVERRIDE;
virtual bool onFilterBounds(const SkIRect& src, const SkMatrix&,
SkIRect* dst) const SK_OVERRIDE;
bool canFilterImageGPU() const SK_OVERRIDE { return true; }
virtual bool filterImageGPU(Proxy* proxy, const SkBitmap& src, const Context& ctx,
SkBitmap* result, SkIPoint* offset) const SK_OVERRIDE;
private:
SkSize fSigma;
typedef SkImageFilter INHERITED;
};
#endif
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