1 /* libs/graphics/sgl/SkBitmapShader.h 2 ** 3 ** Copyright 2006, The Android Open Source Project 4 ** 5 ** Licensed under the Apache License, Version 2.0 (the "License"); 6 ** you may not use this file except in compliance with the License. 7 ** You may obtain a copy of the License at 8 ** 9 ** http://www.apache.org/licenses/LICENSE-2.0 10 ** 11 ** Unless required by applicable law or agreed to in writing, software 12 ** distributed under the License is distributed on an "AS IS" BASIS, 13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 ** See the License for the specific language governing permissions and 15 ** limitations under the License. 16 */ 17 18 #ifndef SkBitmapShader_DEFINED 19 #define SkBitmapShader_DEFINED 20 21 #include "SkShader.h" 22 #include "SkBitmap.h" 23 #include "SkPaint.h" 24 25 class SkBitmapShader : public SkShader { 26 public: 27 SkBitmapShader( const SkBitmap& src, 28 bool doFilter, TileMode tx, TileMode ty); 29 30 virtual bool setContext(const SkBitmap&, const SkPaint& paint, const SkMatrix&); getFlags()31 virtual uint32_t getFlags() { return fFlags; } 32 33 protected: 34 SkBitmapShader(SkFlattenableReadBuffer& ); 35 virtual void flatten(SkFlattenableWriteBuffer& ); getFactory()36 virtual Factory getFactory() { return CreateProc; } getSrcBitmap()37 const SkBitmap& getSrcBitmap() const 38 { 39 #ifdef SK_SUPPORT_MIPMAP 40 return fMipSrcBitmap; 41 #else 42 return fOrigSrcBitmap; 43 #endif 44 } getFilterBitmap()45 bool getFilterBitmap() const { return fFilterBitmap != 0; } getTileModeX()46 TileMode getTileModeX() const { return (TileMode)fTileModeX; } getTileModeY()47 TileMode getTileModeY() const { return (TileMode)fTileModeY; } getMipLevel()48 SkFixed getMipLevel() const 49 { 50 #ifdef SK_SUPPORT_MIPMAP 51 return fMipLevel; 52 #else 53 return 0; 54 #endif 55 } 56 57 private: CreateProc(SkFlattenableReadBuffer & buffer)58 static SkFlattenable* CreateProc(SkFlattenableReadBuffer& buffer) { 59 return SkNEW_ARGS(SkBitmapShader, (buffer)); } 60 #ifdef SK_SUPPORT_MIPMAP 61 SkFixed fMipLevel; 62 SkBitmap fMipSrcBitmap; // the chosen level (in setContext) 63 #endif 64 SkBitmap fOrigSrcBitmap; 65 uint8_t fFilterBitmap; 66 uint8_t fTileModeX; 67 uint8_t fTileModeY; 68 uint8_t fFlags; 69 70 typedef SkShader INHERITED; 71 }; 72 73 #endif 74