projects / occt.git / blame
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|---|---|---|
| b311480e | 1 | // Created on: 2011-03-18 |
| 2 | // Created by: Anton POLETAEV | |
| 973c2be1 | 3 | // Copyright (c) 2011-2014 OPEN CASCADE SAS |
| b311480e | 4 | // |
| 973c2be1 | 5 | // This file is part of Open CASCADE Technology software library. |
| b311480e | 6 | // |
| d5f74e42 | 7 | // This library is free software; you can redistribute it and/or modify it under |
| 8 | // the terms of the GNU Lesser General Public License version 2.1 as published | |
| 973c2be1 | 9 | // by the Free Software Foundation, with special exception defined in the file |
| 10 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT | |
| 11 | // distribution for complete text of the license and disclaimer of any warranty. | |
| b311480e | 12 | // |
| 973c2be1 | 13 | // Alternatively, this file may be used under the terms of Open CASCADE |
| 14 | // commercial license or contractual agreement. | |
| b311480e | 15 | |
| 5e27df78 | 16 | #ifndef _OpenGl_Resource_H__ |
| 17 | #define _OpenGl_Resource_H__ | |
| 161c4476 | 18 | |
| 4f953fa9 | 19 | #include <Standard_Type.hxx> |
| 161c4476 K |
20 | |
| 21 | class Standard_Transient; | |
| 5e27df78 | 22 | class OpenGl_Context; |
| 23 | ||
| 24 | //! Interface for OpenGl resource with following meaning: | |
| 25 | //! - object can be constructed at any time; | |
| 26 | //! - should be explicitly Initialized within active OpenGL context; | |
| 27 | //! - should be explicitly Released within active OpenGL context (virtual Release() method); | |
| 28 | //! - can be destroyed at any time. | |
| 29 | //! Destruction of object with unreleased GPU resources will cause leaks | |
| 30 | //! which will be ignored in release mode and will immediately stop program execution in debug mode using assert. | |
| 31 | class OpenGl_Resource : public Standard_Transient | |
| 161c4476 K |
32 | { |
| 33 | ||
| 34 | public: | |
| 35 | ||
| 5e27df78 | 36 | //! Empty constructor |
| 37 | Standard_EXPORT OpenGl_Resource(); | |
| 161c4476 | 38 | |
| 5e27df78 | 39 | //! Destructor. Inheritors should call Clean (NULL) within it. |
| 40 | Standard_EXPORT virtual ~OpenGl_Resource(); | |
| 161c4476 | 41 | |
| 5e27df78 | 42 | //! Release GPU resources. |
| 43 | //! Notice that implementation should be SAFE for several consecutive calls | |
| 44 | //! (thus should invalidate internal structures / ids to avoid multiple-free errors). | |
| 45 | //! @param theGlCtx - bound GL context, shouldn't be NULL. | |
| 10b9c7df | 46 | Standard_EXPORT virtual void Release (OpenGl_Context* theGlCtx) = 0; |
| 161c4476 | 47 | |
| 5e27df78 | 48 | private: |
| 161c4476 | 49 | |
| 5e27df78 | 50 | //! Copy should be performed only within Handles! |
| 51 | OpenGl_Resource (const OpenGl_Resource& ); | |
| 52 | OpenGl_Resource& operator= (const OpenGl_Resource& ); | |
| 161c4476 | 53 | |
| 3946774d | 54 | public: |
| 55 | ||
| 92efcf78 | 56 | DEFINE_STANDARD_RTTIEXT(OpenGl_Resource,Standard_Transient) // Type definition |
| 3946774d | 57 | |
| 161c4476 K |
58 | }; |
| 59 | ||
| 5e27df78 | 60 | DEFINE_STANDARD_HANDLE(OpenGl_Resource, Standard_Transient) |
| 161c4476 | 61 | |
| 5e27df78 | 62 | #endif // _OpenGl_Resource_H__ |