gluObjectWrapper.hpp revision 3c827367444ee418f129b2c238299f49d3264554 
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
32namespace 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 *//*--------------------------------------------------------------------*/
41enum 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
54struct ObjectTraits
55{
56	const char*					name;
57	glw::glGenBuffersFunc		glw::Functions::*genFunc;
58	glw::glDeleteBuffersFunc	glw::Functions::*deleteFunc;
59};
60
61const ObjectTraits& objectTraits (ObjectType type);
62
63class ObjectWrapper
64{
65public:
66							ObjectWrapper		(const glw::Functions& gl, const ObjectTraits& traits);
67							~ObjectWrapper		(void);
68
69	inline deUint32			get					(void) const { return m_object; }
70	inline deUint32			operator*			(void) const { return m_object; }
71
72protected:
73	const glw::Functions&	m_gl;
74	const ObjectTraits&		m_traits;
75	deUint32				m_object;
76
77private:
78							ObjectWrapper		(const ObjectWrapper& other);
79	ObjectWrapper&			operator=			(const ObjectWrapper& other);
80};
81
82/*--------------------------------------------------------------------*//*!
83 * \brief API object wrapper template.
84 *//*--------------------------------------------------------------------*/
85template<ObjectType Type> class TypedObjectWrapper : public ObjectWrapper
86{
87public:
88	explicit	TypedObjectWrapper (const RenderContext& context) : ObjectWrapper(context.getFunctions(), objectTraits(Type)) {}
89};
90
91/*--------------------------------------------------------------------*//*!
92 * \brief API object vector.
93 *//*--------------------------------------------------------------------*/
94class ObjectVector
95{
96public:
97										ObjectVector		(const glw::Functions& gl, const ObjectTraits& traits, size_t numObjects = 0);
98										~ObjectVector		(void);
99
100	size_t								size				(void) const		{ return m_objects.size();	}
101
102	void								resize				(size_t newSize);
103	void								clear				(void);
104
105	bool								empty				(void) const		{ return m_objects.empty();	}
106
107	deUint32							get					(size_t ndx) const	{ return m_objects[ndx];	}
108	deUint32							operator[]			(size_t ndx) const	{ return get(ndx);			}
109
110private:
111										ObjectVector		(const ObjectVector& other);
112	ObjectVector&						operator=			(const ObjectVector& other);
113
114	const glw::Functions&				m_gl;
115	const ObjectTraits&					m_traits;
116	std::vector<deUint32>				m_objects;
117};
118
119template<ObjectType Type> class TypedObjectVector : public ObjectVector
120{
121public:
122	explicit	TypedObjectVector (const RenderContext& context, size_t numObjects = 0) : ObjectVector(context.getFunctions(), objectTraits(Type), numObjects) {}
123};
124
125// Typedefs for simple wrappers without functionality.
126
127typedef TypedObjectWrapper<OBJECTTYPE_TEXTURE>				Texture;
128typedef TypedObjectWrapper<OBJECTTYPE_BUFFER>				Buffer;
129typedef TypedObjectWrapper<OBJECTTYPE_RENDERBUFFER>			Renderbuffer;
130typedef TypedObjectWrapper<OBJECTTYPE_FRAMEBUFFER>			Framebuffer;
131typedef TypedObjectWrapper<OBJECTTYPE_TRANSFORM_FEEDBACK>	TransformFeedback;
132typedef TypedObjectWrapper<OBJECTTYPE_VERTEX_ARRAY>			VertexArray;
133typedef TypedObjectWrapper<OBJECTTYPE_QUERY>				Query;
134
135typedef TypedObjectVector<OBJECTTYPE_TEXTURE>				TextureVector;
136typedef TypedObjectVector<OBJECTTYPE_BUFFER>				BufferVector;
137typedef TypedObjectVector<OBJECTTYPE_RENDERBUFFER>			RenderbufferVector;
138
139} // glu
140
141#endif // _GLUOBJECTWRAPPER_HPP
142