| /* |
| * Copyright 2011 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 SkBlurImageFilter_DEFINED |
| #define SkBlurImageFilter_DEFINED |
| |
| #include "SkImageFilter.h" |
| #include "SkSize.h" |
| |
| class SK_API SkBlurImageFilter : public SkImageFilter { |
| public: |
| static sk_sp<SkImageFilter> Make(SkScalar sigmaX, SkScalar sigmaY, sk_sp<SkImageFilter> input, |
| const CropRect* cropRect = nullptr) { |
| if (0 == sigmaX && 0 == sigmaY && nullptr == cropRect) { |
| return input; |
| } |
| return sk_sp<SkImageFilter>(new SkBlurImageFilter(sigmaX, sigmaY, input, cropRect)); |
| } |
| |
| SkRect computeFastBounds(const SkRect&) const override; |
| |
| SK_TO_STRING_OVERRIDE() |
| SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkBlurImageFilter) |
| |
| #ifdef SK_SUPPORT_LEGACY_IMAGEFILTER_PTR |
| static SkImageFilter* Create(SkScalar sigmaX, SkScalar sigmaY, SkImageFilter* input = nullptr, |
| const CropRect* cropRect = nullptr) { |
| return Make(sigmaX, sigmaY, sk_ref_sp<SkImageFilter>(input), cropRect).release(); |
| } |
| #endif |
| |
| protected: |
| 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: |
| SkBlurImageFilter(SkScalar sigmaX, |
| SkScalar sigmaY, |
| sk_sp<SkImageFilter> input, |
| const CropRect* cropRect); |
| |
| SkSize fSigma; |
| typedef SkImageFilter INHERITED; |
| }; |
| |
| #endif |