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&, 42 SkIPoint* margin); 43 44 // overrides from SkFlattenable 45 46 // This method is not exported to java. 47 virtual Factory getFactory(); 48 // This method is not exported to java. 49 virtual void flatten(SkFlattenableWriteBuffer&); 50 51 protected: 52 SkEmbossMaskFilter(SkFlattenableReadBuffer&); 53 54 private: 55 Light fLight; 56 SkScalar fBlurRadius; 57 58 static SkFlattenable* CreateProc(SkFlattenableReadBuffer&); 59 60 typedef SkMaskFilter INHERITED; 61 }; 62 63 #endif 64 65
