| /* |
| * Copyright 2015 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 SkLocalMatrixImageFilter_DEFINED |
| #define SkLocalMatrixImageFilter_DEFINED |
| |
| #include "include/core/SkFlattenable.h" |
| #include "src/core/SkImageFilter_Base.h" |
| |
| /** |
| * Wraps another imagefilter + matrix, such that using this filter will give the same result |
| * as using the wrapped filter with the matrix applied to its context. |
| */ |
| class SkLocalMatrixImageFilter : public SkImageFilter_Base { |
| public: |
| static sk_sp<SkImageFilter> Make(const SkMatrix& localM, sk_sp<SkImageFilter> input); |
| |
| protected: |
| void flatten(SkWriteBuffer&) const override; |
| sk_sp<SkSpecialImage> onFilterImage(const Context&, SkIPoint* offset) const override; |
| SkIRect onFilterBounds(const SkIRect& src, const SkMatrix& ctm, |
| MapDirection, const SkIRect* inputRect) const override; |
| |
| bool onCanHandleComplexCTM() const override { return true; } |
| |
| private: |
| SK_FLATTENABLE_HOOKS(SkLocalMatrixImageFilter) |
| |
| SkLocalMatrixImageFilter(const SkMatrix& localM, sk_sp<SkImageFilter> input); |
| |
| SkMatrix fLocalM; |
| |
| typedef SkImageFilter_Base INHERITED; |
| }; |
| |
| #endif |