1 /* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef SkEmbossMaskFilter_DEFINED 18 #define SkEmbossMaskFilter_DEFINED 19 20 #include "SkMaskFilter.h" 21 22 /** \class SkEmbossMaskFilter 23 24 This mask filter creates a 3D emboss look, by specifying a light and blur amount. 25 */ 26 class SkEmbossMaskFilter : public SkMaskFilter { 27 public: 28 struct Light { 29 SkScalar fDirection[3]; // x,y,z 30 uint16_t fPad; 31 uint8_t fAmbient; 32 uint8_t fSpecular; // exponent, 4.4 right now 33 }; 34 35 SkEmbossMaskFilter(const Light& light, SkScalar blurRadius); 36 37 // overrides from SkMaskFilter 38 // This method is not exported to java. 39 virtual SkMask::Format getFormat(); 40 // This method is not exported to java. 41 virtual bool filterMask(SkMask* dst, const SkMask& src, const SkMatrix& matrix, SkIPoint* margin); 42 43 // overrides from SkFlattenable 44 45 // This method is not exported to java. 46 virtual Factory getFactory(); 47 // This method is not exported to java. 48 virtual void flatten(SkFlattenableWriteBuffer&); 49 50 protected: 51 SkEmbossMaskFilter(SkFlattenableReadBuffer&); 52 53 private: 54 Light fLight; 55 SkScalar fBlurRadius; 56 57 static SkFlattenable* CreateProc(SkFlattenableReadBuffer&); 58 59 typedef SkMaskFilter INHERITED; 60 }; 61 62 #endif 63 64
