1 /* 2 * Copyright 2015 Google Inc. 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 GrGLUniformHandler_DEFINED 9 #define GrGLUniformHandler_DEFINED 10 11 #include "glsl/GrGLSLUniformHandler.h" 12 13 #include "gl/GrGLProgramDataManager.h" 14 15 class GrGLCaps; 16 17 static const int kUniformsPerBlock = 8; 18 19 class GrGLUniformHandler : public GrGLSLUniformHandler { 20 public: 21 const GrGLSLShaderVar& getUniformVariable(UniformHandle u) const override { 22 return fUniforms[u.toIndex()].fVariable; 23 } 24 25 const char* getUniformCStr(UniformHandle u) const override { 26 return this->getUniformVariable(u).c_str(); 27 } 28 private: 29 explicit GrGLUniformHandler(GrGLSLProgramBuilder* program) 30 : INHERITED(program) 31 , fUniforms(kUniformsPerBlock) {} 32 33 UniformHandle internalAddUniformArray(uint32_t visibility, 34 GrSLType type, 35 GrSLPrecision precision, 36 const char* name, 37 bool mangleName, 38 int arrayCount, 39 const char** outName) override; 40 41 void appendUniformDecls(GrShaderFlags visibility, SkString*) const override; 42 43 // Manually set uniform locations for all our uniforms. 44 void bindUniformLocations(GrGLuint programID, const GrGLCaps& caps); 45 46 // Updates the loction of the Uniforms if we cannot bind uniform locations manually 47 void getUniformLocations(GrGLuint programID, const GrGLCaps& caps); 48 49 const GrGLGpu* glGpu() const; 50 51 typedef GrGLProgramDataManager::UniformInfo UniformInfo; 52 typedef GrGLProgramDataManager::UniformInfoArray UniformInfoArray; 53 54 UniformInfoArray fUniforms; 55 56 friend class GrGLProgramBuilder; 57 58 typedef GrGLSLUniformHandler INHERITED; 59 }; 60 61 #endif 62
