| /* |
| * 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 "SkMatrix.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 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; |
| |
| SK_TO_STRING_OVERRIDE() |
| SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkMatrixImageFilter) |
| |
| #ifdef SK_SUPPORT_LEGACY_IMAGEFILTER_PTR |
| static SkImageFilter* Create(const SkMatrix& transform, |
| SkFilterQuality filterQuality, |
| SkImageFilter* input = nullptr) { |
| return Make(transform, filterQuality, sk_ref_sp<SkImageFilter>(input)).release(); |
| } |
| #endif |
| |
| 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&, MapDirection) const override; |
| |
| private: |
| SkMatrix fTransform; |
| SkFilterQuality fFilterQuality; |
| typedef SkImageFilter INHERITED; |
| }; |
| |
| #endif |