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- /*
- * 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/SkImageFilter.h"
- #include "include/core/SkMatrix.h"
- /*! \class SkMatrixImageFilter
- Matrix transformation image filter. This filter draws its source
- input transformed by the given matrix.
- */
- class SkMatrixImageFilter : public SkImageFilter {
- 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(SkSpecialImage* source, 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 INHERITED;
- };
- #endif
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