blob: 12ed13ed4157bf2d25e11ceee7d641659f9a20c8 [file] [log] [blame]
/*
* Copyright 2014 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 SkMatrixImageFilter_DEFINED
#define SkMatrixImageFilter_DEFINED
#include "include/core/SkFlattenable.h"
#include "include/core/SkMatrix.h"
#include "src/core/SkImageFilter_Base.h"
/*! \class SkMatrixImageFilter
Matrix transformation image filter. This filter draws its source
input transformed by the given matrix.
*/
class SkMatrixImageFilter : public SkImageFilter_Base {
public:
/** Construct a 2D transformation image filter.
* @param transform The matrix to apply when drawing the src bitmap
* @param filterQuality The quality of filtering to apply when scaling.
* @param input The input image filter. If nullptr, the src bitmap
* passed to filterImage() is used instead.
*/
static sk_sp<SkImageFilter> Make(const SkMatrix& transform,
SkFilterQuality filterQuality,
sk_sp<SkImageFilter> input);
SkRect computeFastBounds(const SkRect&) const override;
protected:
SkMatrixImageFilter(const SkMatrix& transform,
SkFilterQuality,
sk_sp<SkImageFilter> input);
void flatten(SkWriteBuffer&) const override;
sk_sp<SkSpecialImage> onFilterImage(const Context&, SkIPoint* offset) const override;
SkIRect onFilterNodeBounds(const SkIRect& src, const SkMatrix& ctm,
MapDirection, const SkIRect* inputRect) const override;
private:
SK_FLATTENABLE_HOOKS(SkMatrixImageFilter)
SkMatrix fTransform;
SkFilterQuality fFilterQuality;
typedef SkImageFilter_Base INHERITED;
};
#endif