1 /* 2 * Copyright 2006 The Android Open Source Project 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 #ifndef SkEmbossMaskFilter_DEFINED 9 #define SkEmbossMaskFilter_DEFINED 10 11 #include "SkMaskFilterBase.h" 12 13 /** \class SkEmbossMaskFilter 14 15 This mask filter creates a 3D emboss look, by specifying a light and blur amount. 16 */ 17 class SK_API SkEmbossMaskFilter : public SkMaskFilterBase { 18 public: 19 struct Light { 20 SkScalar fDirection[3]; // x,y,z 21 uint16_t fPad; 22 uint8_t fAmbient; 23 uint8_t fSpecular; // exponent, 4.4 right now 24 }; 25 26 static sk_sp<SkMaskFilter> Make(SkScalar blurSigma, const Light& light); 27 28 // overrides from SkMaskFilter 29 // This method is not exported to java. 30 SkMask::Format getFormat() const override; 31 // This method is not exported to java. 32 bool filterMask(SkMask* dst, const SkMask& src, const SkMatrix&, 33 SkIPoint* margin) const override; 34 35 SK_TO_STRING_OVERRIDE() 36 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkEmbossMaskFilter) 37 38 protected: 39 SkEmbossMaskFilter(SkScalar blurSigma, const Light& light); 40 void flatten(SkWriteBuffer&) const override; 41 42 private: 43 Light fLight; 44 SkScalar fBlurSigma; 45 46 typedef SkMaskFilter INHERITED; 47 }; 48 49 #endif 50
