| /* |
| * 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 "SkImageFilter.h" |
| #include "SkScalar.h" |
| #include "SkSize.h" |
| #include "SkPoint.h" |
| #include "SkPaint.h" |
| |
| /*! \class SkMatrixImageFilter |
| Matrix transformation image filter. This filter draws its source |
| input transformed by the given matrix. |
| */ |
| |
| class SK_API SkMatrixImageFilter : public SkImageFilter { |
| public: |
| /** Construct a 2D transformation image filter. |
| * @param transform The matrix to apply when drawing the src bitmap |
| * @param filterLevel The quality of filtering to apply when scaling. |
| * @param input The input image filter. If NULL, the src bitmap |
| * passed to filterImage() is used instead. |
| */ |
| |
| static SkMatrixImageFilter* Create(const SkMatrix& transform, |
| SkPaint::FilterLevel, |
| SkImageFilter* input = NULL); |
| virtual ~SkMatrixImageFilter(); |
| |
| virtual void computeFastBounds(const SkRect&, SkRect*) const SK_OVERRIDE; |
| |
| SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkMatrixImageFilter) |
| |
| protected: |
| SkMatrixImageFilter(const SkMatrix& transform, |
| SkPaint::FilterLevel, |
| SkImageFilter* input = NULL); |
| SkMatrixImageFilter(SkReadBuffer& buffer); |
| virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE; |
| |
| virtual bool onFilterImage(Proxy*, const SkBitmap& src, const Context&, |
| SkBitmap* result, SkIPoint* loc) const SK_OVERRIDE; |
| virtual bool onFilterBounds(const SkIRect& src, const SkMatrix&, |
| SkIRect* dst) const SK_OVERRIDE; |
| |
| private: |
| SkMatrix fTransform; |
| SkPaint::FilterLevel fFilterLevel; |
| typedef SkImageFilter INHERITED; |
| }; |
| |
| #endif |