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 GrGLSLProgramDataManager_DEFINED 9 #define GrGLSLProgramDataManager_DEFINED 10 11 #include "GrResourceHandle.h" 12 #include "SkTypes.h" 13 14 class SkMatrix; 15 class SkMatrix44; 16 17 /** Manages the resources used by a shader program. 18 * The resources are objects the program uses to communicate with the 19 * application code. 20 */ 21 class GrGLSLProgramDataManager : SkNoncopyable { 22 public: 23 GR_DEFINE_RESOURCE_HANDLE_CLASS(UniformHandle); 24 ~GrGLSLProgramDataManager()25 virtual ~GrGLSLProgramDataManager() {} 26 27 /** Functions for uploading uniform values. The varities ending in v can be used to upload to an 28 * array of uniforms. arrayCount must be <= the array count of the uniform. 29 */ 30 virtual void set1i(UniformHandle, int32_t) const = 0; 31 virtual void set1iv(UniformHandle, int arrayCount, const int v[]) const = 0; 32 virtual void set1f(UniformHandle, float v0) const = 0; 33 virtual void set1fv(UniformHandle, int arrayCount, const float v[]) const = 0; 34 virtual void set2f(UniformHandle, float, float) const = 0; 35 virtual void set2fv(UniformHandle, int arrayCount, const float v[]) const = 0; 36 virtual void set3f(UniformHandle, float, float, float) const = 0; 37 virtual void set3fv(UniformHandle, int arrayCount, const float v[]) const = 0; 38 virtual void set4f(UniformHandle, float, float, float, float) const = 0; 39 virtual void set4fv(UniformHandle, int arrayCount, const float v[]) const = 0; 40 // matrices are column-major, the first three upload a single matrix, the latter three upload 41 // arrayCount matrices into a uniform array. 42 virtual void setMatrix2f(UniformHandle, const float matrix[]) const = 0; 43 virtual void setMatrix3f(UniformHandle, const float matrix[]) const = 0; 44 virtual void setMatrix4f(UniformHandle, const float matrix[]) const = 0; 45 virtual void setMatrix2fv(UniformHandle, int arrayCount, const float matrices[]) const = 0; 46 virtual void setMatrix3fv(UniformHandle, int arrayCount, const float matrices[]) const = 0; 47 virtual void setMatrix4fv(UniformHandle, int arrayCount, const float matrices[]) const = 0; 48 49 // convenience method for uploading a SkMatrix to a 3x3 matrix uniform 50 void setSkMatrix(UniformHandle, const SkMatrix&) const; 51 52 // convenience method for uploading a SkMatrix44 to a 4x4 matrix uniform 53 void setSkMatrix44(UniformHandle, const SkMatrix44&) const; 54 55 // for nvpr only 56 GR_DEFINE_RESOURCE_HANDLE_CLASS(VaryingHandle); 57 virtual void setPathFragmentInputTransform(VaryingHandle u, int components, 58 const SkMatrix& matrix) const = 0; 59 60 protected: GrGLSLProgramDataManager()61 GrGLSLProgramDataManager() {} 62 63 private: 64 typedef SkNoncopyable INHERITED; 65 }; 66 67 #endif 68