0023418: Crash on the object displaying when running DRAW on remote station. OpenGL...
[occt.git] / src / OpenGl / OpenGl_Element.hxx
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b311480e 1// Created on: 2011-08-05
2// Created by: Sergey ZERCHANINOV
3// Copyright (c) 2011-2012 OPEN CASCADE SAS
4//
5// The content of this file is subject to the Open CASCADE Technology Public
6// License Version 6.5 (the "License"). You may not use the content of this file
7// except in compliance with the License. Please obtain a copy of the License
8// at http://www.opencascade.org and read it completely before using this file.
9//
10// The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
11// main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
12//
13// The Original Code and all software distributed under the License is
14// distributed on an "AS IS" basis, without warranty of any kind, and the
15// Initial Developer hereby disclaims all such warranties, including without
16// limitation, any warranties of merchantability, fitness for a particular
17// purpose or non-infringement. Please see the License for the specific terms
18// and conditions governing the rights and limitations under the License.
19
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20
21#ifndef OpenGl_Element_Header
22#define OpenGl_Element_Header
23
24#include <OpenGl_Workspace.hxx>
25
26class OpenGl_Element
27{
5e27df78 28public:
2166f0fa 29
5e27df78 30 OpenGl_Element() {}
31
32 virtual void Render (const Handle(OpenGl_Workspace)& theWorkspace) const = 0;
33
34 //! Release GPU resources.
35 virtual void Release (const Handle(OpenGl_Context)& theContext) = 0;
36
37 template <typename theResource_t>
38 static void Destroy (const Handle(OpenGl_Context)& theContext,
39 theResource_t*& theElement)
40 {
41 if (theElement == NULL)
42 {
43 return;
44 }
45
46 theElement->Release (theContext);
47 OpenGl_Element* anElement = theElement;
48 delete anElement;
49 theElement = NULL;
50 }
51
52protected:
53
54 virtual ~OpenGl_Element() {}
55
56public:
2166f0fa 57
1c35b92f 58 DEFINE_STANDARD_ALLOC
5e27df78 59
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60};
61
62#endif //OpenGl_Element_Header