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 "include/core/SkTypes.h" 12 #include "include/effects/SkRuntimeEffect.h" 13 #include "include/private/base/SkNoncopyable.h" 14 #include "src/gpu/ganesh/GrResourceHandle.h" 15 16 class SkMatrix; 17 class SkM44; 18 19 /** Manages the resources used by a shader program. 20 * The resources are objects the program uses to communicate with the 21 * application code. 22 */ 23 class GrGLSLProgramDataManager { 24 public: 25 GR_DEFINE_RESOURCE_HANDLE_CLASS(UniformHandle); 26 ~GrGLSLProgramDataManager()27 virtual ~GrGLSLProgramDataManager() {} 28 29 /** Functions for uploading uniform values. The varities ending in v can be used to upload to an 30 * array of uniforms. arrayCount must be <= the array count of the uniform. 31 */ 32 virtual void set1i(UniformHandle, int32_t) const = 0; 33 virtual void set1iv(UniformHandle, int arrayCount, const int v[]) const = 0; 34 virtual void set1f(UniformHandle, float v0) const = 0; 35 virtual void set1fv(UniformHandle, int arrayCount, const float v[]) const = 0; 36 virtual void set2i(UniformHandle, int32_t, int32_t) const = 0; 37 virtual void set2iv(UniformHandle, int arrayCount, const int v[]) const = 0; 38 virtual void set2f(UniformHandle, float, float) const = 0; 39 virtual void set2fv(UniformHandle, int arrayCount, const float v[]) const = 0; 40 virtual void set3i(UniformHandle, int32_t, int32_t, int32_t) const = 0; 41 virtual void set3iv(UniformHandle, int arrayCount, const int v[]) const = 0; 42 virtual void set3f(UniformHandle, float, float, float) const = 0; 43 virtual void set3fv(UniformHandle, int arrayCount, const float v[]) const = 0; 44 virtual void set4i(UniformHandle, int32_t, int32_t, int32_t, int32_t) const = 0; 45 virtual void set4iv(UniformHandle, int arrayCount, const int v[]) const = 0; 46 virtual void set4f(UniformHandle, float, float, float, float) const = 0; 47 virtual void set4fv(UniformHandle, int arrayCount, const float v[]) const = 0; 48 // matrices are column-major, the first three upload a single matrix, the latter three upload 49 // arrayCount matrices into a uniform array. 50 virtual void setMatrix2f(UniformHandle, const float matrix[]) const = 0; 51 virtual void setMatrix3f(UniformHandle, const float matrix[]) const = 0; 52 virtual void setMatrix4f(UniformHandle, const float matrix[]) const = 0; 53 virtual void setMatrix2fv(UniformHandle, int arrayCount, const float matrices[]) const = 0; 54 virtual void setMatrix3fv(UniformHandle, int arrayCount, const float matrices[]) const = 0; 55 virtual void setMatrix4fv(UniformHandle, int arrayCount, const float matrices[]) const = 0; 56 57 // convenience method for uploading a SkMatrix to a 3x3 matrix uniform 58 void setSkMatrix(UniformHandle, const SkMatrix&) const; 59 // convenience method for uploading a SkMatrix to a 4x4 matrix uniform 60 void setSkM44(UniformHandle, const SkM44&) const; 61 62 enum class Specialized : bool { kNo = false, kYes = true }; 63 64 /** 65 * Sets runtime effect uniform values. The Specialized span is optional. If it is non-empty 66 * then it should be the same size as the Uniform span. Uniforms for which the Specialized value 67 * is kYes will be skipped and the UniformHandle span should have an entry for each 68 * kNo value. If Specialized is empty then the Uniform and UniformHandle spans should have the 69 * same size. 70 */ 71 void setRuntimeEffectUniforms(SkSpan<const SkRuntimeEffect::Uniform>, 72 SkSpan<const UniformHandle>, 73 SkSpan<const Specialized>, 74 const void* src) const; 75 setRuntimeEffectUniforms(SkSpan<const SkRuntimeEffect::Uniform> uniforms,SkSpan<const UniformHandle> handles,const void * src)76 void setRuntimeEffectUniforms(SkSpan<const SkRuntimeEffect::Uniform> uniforms, 77 SkSpan<const UniformHandle> handles, 78 const void* src) const { 79 this->setRuntimeEffectUniforms(uniforms, handles, {}, src); 80 } 81 82 protected: GrGLSLProgramDataManager()83 GrGLSLProgramDataManager() {} 84 85 private: 86 GrGLSLProgramDataManager(const GrGLSLProgramDataManager&) = delete; 87 GrGLSLProgramDataManager& operator=(const GrGLSLProgramDataManager&) = delete; 88 89 using INHERITED = SkNoncopyable; 90 }; 91 92 #endif 93