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source: downloads/OgreMain/include/OgreExternalTextureSourceManager.h @ 5

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1/*
2-----------------------------------------------------------------------------
3This source file is part of OGRE
4    (Object-oriented Graphics Rendering Engine)
5For the latest info, see http://www.ogre3d.org/
6
7Copyright (c) 2000-2006 Torus Knot Software Ltd
8Also see acknowledgements in Readme.html
9
10This program is free software; you can redistribute it and/or modify it under
11the terms of the GNU Lesser General Public License as published by the Free Software
12Foundation; either version 2 of the License, or (at your option) any later
13version.
14
15This program is distributed in the hope that it will be useful, but WITHOUT
16ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
17FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
18
19You should have received a copy of the GNU Lesser General Public License along with
20this program; if not, write to the Free Software Foundation, Inc., 59 Temple
21Place - Suite 330, Boston, MA 02111-1307, USA, or go to
22http://www.gnu.org/copyleft/lesser.txt.
23
24You may alternatively use this source under the terms of a specific version of
25the OGRE Unrestricted License provided you have obtained such a license from
26Torus Knot Software Ltd.
27-----------------------------------------------------------------------------
28*/
29#ifndef _OgreExternalTextureSourceManager_H
30#define _OgreExternalTextureSourceManager_H
31
32/***************************************************************************
33OgreExternalTextureSourceManager.h  - 
34        Handles the registering / unregistering of texture modifier plugins
35
36-------------------
37date                 : Jan 1 2004
38email                : pjcast@yahoo.com
39***************************************************************************/
40#include "OgreSingleton.h"
41#include "OgreString.h"
42#include "OgreResourceGroupManager.h"
43#include "OgreExternalTextureSource.h"
44
45namespace Ogre
46{
47        /**
48        Singleton Class which handles the registering and control of texture plugins. The plugins
49        will be mostly controlled via a string interface. */
50        class _OgreExport ExternalTextureSourceManager : public Singleton<ExternalTextureSourceManager>
51        {
52        public:
53                /** Constructor */
54                ExternalTextureSourceManager();
55                /** Destructor */
56                ~ExternalTextureSourceManager();
57
58                /** Sets active plugin (ie. "video", "effect", "generic", etc..) */
59                void setCurrentPlugIn( const String& sTexturePlugInType );
60
61                /** Returns currently selected plugin, may be null if none selected */
62                ExternalTextureSource* getCurrentPlugIn( void ) const { return mpCurrExternalTextureSource; }
63       
64                /** Calls the destroy method of all registered plugins...
65                Only the owner plugin should perform the destroy action. */
66                void destroyAdvancedTexture( const String& sTextureName,
67                        const String& groupName = ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
68
69                /** Returns the plugin which reistered itself with a specific name
70                (eg. "video"), or null if specified plugin not found */
71                ExternalTextureSource* getExternalTextureSource( const String& sTexturePlugInType );
72
73                /** Called from plugin to register itself */
74                void setExternalTextureSource( const String& sTexturePlugInType, ExternalTextureSource* pTextureSystem );
75
76        /** Override standard Singleton retrieval.
77        @remarks
78        Why do we do this? Well, it's because the Singleton
79        implementation is in a .h file, which means it gets compiled
80        into anybody who includes it. This is needed for the
81        Singleton template to work, but we actually only want it
82        compiled into the implementation of the class based on the
83        Singleton, not all of them. If we don't change this, we get
84        link errors when trying to use the Singleton-based class from
85        an outside dll.
86        @par
87        This method just delegates to the template version anyway,
88        but the implementation stays in this single compilation unit,
89        preventing link errors.
90        */
91        static ExternalTextureSourceManager& getSingleton(void);
92        /** Override standard Singleton retrieval.
93        @remarks
94        Why do we do this? Well, it's because the Singleton
95        implementation is in a .h file, which means it gets compiled
96        into anybody who includes it. This is needed for the
97        Singleton template to work, but we actually only want it
98        compiled into the implementation of the class based on the
99        Singleton, not all of them. If we don't change this, we get
100        link errors when trying to use the Singleton-based class from
101        an outside dll.
102        @par
103        This method just delegates to the template version anyway,
104        but the implementation stays in this single compilation unit,
105        preventing link errors.
106        */
107        static ExternalTextureSourceManager* getSingletonPtr(void);
108        protected:
109                //The current texture controller selected
110                ExternalTextureSource* mpCurrExternalTextureSource;
111               
112        // Collection of loaded texture System PlugIns, keyed by registered type
113        typedef std::map< String, ExternalTextureSource*> TextureSystemList;
114        TextureSystemList mTextureSystems;
115    };
116} 
117#endif
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