1 #ifndef _GLUOBJECTWRAPPER_HPP 2 #define _GLUOBJECTWRAPPER_HPP 3 /*------------------------------------------------------------------------- 4 * drawElements Quality Program OpenGL ES Utilities 5 * ------------------------------------------------ 6 * 7 * Copyright 2014 The Android Open Source Project 8 * 9 * Licensed under the Apache License, Version 2.0 (the "License"); 10 * you may not use this file except in compliance with the License. 11 * You may obtain a copy of the License at 12 * 13 * http://www.apache.org/licenses/LICENSE-2.0 14 * 15 * Unless required by applicable law or agreed to in writing, software 16 * distributed under the License is distributed on an "AS IS" BASIS, 17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 18 * See the License for the specific language governing permissions and 19 * limitations under the License. 20 * 21 *//*! 22 * \file 23 * \brief API object wrapper. 24 *//*--------------------------------------------------------------------*/ 25 26 #include "gluDefs.hpp" 27 #include "gluRenderContext.hpp" 28 #include "glwFunctions.hpp" 29 30 #include <vector> 31 32 namespace glu 33 { 34 35 /*--------------------------------------------------------------------*//*! 36 * \brief API object type. 37 * 38 * API object type is used to choose allocation and deallocation routines 39 * for objects. 40 *//*--------------------------------------------------------------------*/ 41 enum ObjectType 42 { 43 OBJECTTYPE_TEXTURE = 0, 44 OBJECTTYPE_BUFFER, 45 OBJECTTYPE_RENDERBUFFER, 46 OBJECTTYPE_FRAMEBUFFER, 47 OBJECTTYPE_TRANSFORM_FEEDBACK, 48 OBJECTTYPE_VERTEX_ARRAY, 49 OBJECTTYPE_QUERY, 50 51 OBJECTTYPE_LAST 52 }; 53 54 struct ObjectTraits 55 { 56 const char* name; 57 glw::glGenBuffersFunc glw::Functions::*genFunc; 58 glw::glDeleteBuffersFunc glw::Functions::*deleteFunc; 59 }; 60 61 const ObjectTraits& objectTraits (ObjectType type); 62 63 class ObjectWrapper 64 { 65 public: 66 ObjectWrapper (const glw::Functions& gl, const ObjectTraits& traits); 67 ~ObjectWrapper (void); 68 get(void) const69 inline deUint32 get (void) const { return m_object; } operator *(void) const70 inline deUint32 operator* (void) const { return m_object; } 71 72 protected: 73 const glw::Functions& m_gl; 74 const ObjectTraits& m_traits; 75 deUint32 m_object; 76 77 private: 78 ObjectWrapper (const ObjectWrapper& other); 79 ObjectWrapper& operator= (const ObjectWrapper& other); 80 }; 81 82 /*--------------------------------------------------------------------*//*! 83 * \brief API object wrapper template. 84 *//*--------------------------------------------------------------------*/ 85 template<ObjectType Type> class TypedObjectWrapper : public ObjectWrapper 86 { 87 public: TypedObjectWrapper(const RenderContext & context)88 explicit TypedObjectWrapper (const RenderContext& context) : ObjectWrapper(context.getFunctions(), objectTraits(Type)) {} TypedObjectWrapper(const glw::Functions & gl)89 explicit TypedObjectWrapper (const glw::Functions& gl) : ObjectWrapper(gl, objectTraits(Type)) {} 90 }; 91 92 /*--------------------------------------------------------------------*//*! 93 * \brief API object vector. 94 *//*--------------------------------------------------------------------*/ 95 class ObjectVector 96 { 97 public: 98 ObjectVector (const glw::Functions& gl, const ObjectTraits& traits, size_t numObjects = 0); 99 ~ObjectVector (void); 100 size(void) const101 size_t size (void) const { return m_objects.size(); } 102 103 void resize (size_t newSize); 104 void clear (void); 105 empty(void) const106 bool empty (void) const { return m_objects.empty(); } 107 get(size_t ndx) const108 deUint32 get (size_t ndx) const { return m_objects[ndx]; } operator [](size_t ndx) const109 deUint32 operator[] (size_t ndx) const { return get(ndx); } 110 111 private: 112 ObjectVector (const ObjectVector& other); 113 ObjectVector& operator= (const ObjectVector& other); 114 115 const glw::Functions& m_gl; 116 const ObjectTraits& m_traits; 117 std::vector<deUint32> m_objects; 118 }; 119 120 template<ObjectType Type> class TypedObjectVector : public ObjectVector 121 { 122 public: TypedObjectVector(const RenderContext & context,size_t numObjects=0)123 explicit TypedObjectVector (const RenderContext& context, size_t numObjects = 0) : ObjectVector(context.getFunctions(), objectTraits(Type), numObjects) {} TypedObjectVector(const glw::Functions & gl,size_t numObjects=0)124 explicit TypedObjectVector (const glw::Functions& gl, size_t numObjects = 0) : ObjectVector(gl, objectTraits(Type), numObjects) {} 125 }; 126 127 // Typedefs for simple wrappers without functionality. 128 129 typedef TypedObjectWrapper<OBJECTTYPE_TEXTURE> Texture; 130 typedef TypedObjectWrapper<OBJECTTYPE_BUFFER> Buffer; 131 typedef TypedObjectWrapper<OBJECTTYPE_RENDERBUFFER> Renderbuffer; 132 typedef TypedObjectWrapper<OBJECTTYPE_FRAMEBUFFER> Framebuffer; 133 typedef TypedObjectWrapper<OBJECTTYPE_TRANSFORM_FEEDBACK> TransformFeedback; 134 typedef TypedObjectWrapper<OBJECTTYPE_VERTEX_ARRAY> VertexArray; 135 typedef TypedObjectWrapper<OBJECTTYPE_QUERY> Query; 136 137 typedef TypedObjectVector<OBJECTTYPE_TEXTURE> TextureVector; 138 typedef TypedObjectVector<OBJECTTYPE_BUFFER> BufferVector; 139 typedef TypedObjectVector<OBJECTTYPE_RENDERBUFFER> RenderbufferVector; 140 141 } // glu 142 143 #endif // _GLUOBJECTWRAPPER_HPP 144