1 /* 2 Copyright 2011 Google Inc. 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 18 #ifndef GrGpuGLShaders_DEFINED 19 #define GrGpuGLShaders_DEFINED 20 21 #include "GrGpuGL.h" 22 #include "GrGLProgram.h" 23 24 class GrGpuGLProgram; 25 26 // Programmable OpenGL or OpenGL ES 2.0 27 class GrGpuGLShaders : public GrGpuGL { 28 public: 29 GrGpuGLShaders(); 30 virtual ~GrGpuGLShaders(); 31 32 virtual void resetContext(); 33 34 virtual void abandonResources(); 35 36 protected: 37 // overrides from GrGpu 38 virtual bool flushGraphicsState(GrPrimitiveType type); 39 virtual void setupGeometry(int* startVertex, 40 int* startIndex, 41 int vertexCount, 42 int indexCount); 43 virtual void postDraw(); 44 45 private: 46 47 class ProgramCache; 48 49 // Helpers to make code more readable 50 const GrMatrix& getHWSamplerMatrix(int stage); 51 void recordHWSamplerMatrix(int stage, const GrMatrix& matrix); 52 53 // sets the texture matrix uniform for currently bound program 54 void flushTextureMatrix(int stage); 55 56 // sets the texture domain uniform for currently bound program 57 void flushTextureDomain(int stage); 58 59 // sets the color specified by GrDrawTarget::setColor() 60 void flushColor(); 61 62 // sets the MVP matrix uniform for currently bound program 63 void flushViewMatrix(); 64 65 // flushes the parameters to two point radial gradient 66 void flushRadial2(int stage); 67 68 // flushes the normalized texel size 69 void flushTexelSize(int stage); 70 71 // flushes the edges for edge AA 72 void flushEdgeAAData(); 73 74 static void DeleteProgram(GrGLProgram::CachedData* programData); 75 76 void ProgramUnitTest(); 77 78 void buildProgram(GrPrimitiveType type); 79 80 ProgramCache* fProgramCache; 81 GrGLProgram::CachedData* fProgramData; 82 GrGLuint fHWProgramID; 83 GrGLProgram fCurrentProgram; 84 85 typedef GrGpuGL INHERITED; 86 }; 87 88 #endif 89 90