OgreGLTexture.h
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00001 /*
00002 -----------------------------------------------------------------------------
00003 This source file is part of OGRE
00004     (Object-oriented Graphics Rendering Engine)
00005 For the latest info, see http://www.ogre3d.org/
00006 
00007 Copyright (c) 2000-2012 Torus Knot Software Ltd
00008 
00009 Permission is hereby granted, free of charge, to any person obtaining a copy
00010 of this software and associated documentation files (the "Software"), to deal
00011 in the Software without restriction, including without limitation the rights
00012 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
00013 copies of the Software, and to permit persons to whom the Software is
00014 furnished to do so, subject to the following conditions:
00015 
00016 The above copyright notice and this permission notice shall be included in
00017 all copies or substantial portions of the Software.
00018 
00019 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
00020 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
00021 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
00022 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
00023 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00024 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
00025 THE SOFTWARE.
00026 -----------------------------------------------------------------------------
00027 */
00028 
00029 #ifndef __GLTEXTURE_H__
00030 #define __GLTEXTURE_H__
00031 
00032 #include "OgreGLPrerequisites.h"
00033 #include "OgrePlatform.h"
00034 #include "OgreRenderTexture.h"
00035 #include "OgreTexture.h"
00036 #include "OgreGLSupport.h"
00037 #include "OgreHardwarePixelBuffer.h"
00038 
00039 namespace Ogre {
00040 
00041     class _OgreGLExport GLTexture : public Texture
00042     {
00043     public:
00044         // Constructor
00045         GLTexture(ResourceManager* creator, const String& name, ResourceHandle handle,
00046             const String& group, bool isManual, ManualResourceLoader* loader, 
00047             GLSupport& support);
00048 
00049         virtual ~GLTexture();      
00050 
00051         void createRenderTexture();
00052             
00054         HardwarePixelBufferSharedPtr getBuffer(size_t face, size_t mipmap);
00055 
00056         // Takes the OGRE texture type (1d/2d/3d/cube) and returns the appropriate GL one
00057         GLenum getGLTextureTarget(void) const;
00058 
00059         GLuint getGLID() const
00060         {
00061             return mTextureID;
00062         }
00063         
00064         void getCustomAttribute(const String& name, void* pData);
00065 
00066     protected:
00068         void createInternalResourcesImpl(void);
00070         void prepareImpl(void);
00072         void unprepareImpl(void);
00074         void loadImpl(void);
00076         void freeInternalResourcesImpl(void);
00077 
00083         void _createSurfaceList();
00084 
00086         typedef SharedPtr<vector<Image>::type > LoadedImages;
00087 
00092         LoadedImages mLoadedImages;
00093 
00094 
00095     private:
00096         GLuint mTextureID;
00097         GLSupport& mGLSupport;
00098         
00100         typedef vector<HardwarePixelBufferSharedPtr>::type SurfaceList;
00101         SurfaceList mSurfaceList;
00102     };
00103 
00110     class _OgreGLExport GLTexturePtr : public SharedPtr<GLTexture> 
00111     {
00112     public:
00113         GLTexturePtr() : SharedPtr<GLTexture>() {}
00114         explicit GLTexturePtr(GLTexture* rep) : SharedPtr<GLTexture>(rep) {}
00115         GLTexturePtr(const GLTexturePtr& r) : SharedPtr<GLTexture>(r) {} 
00116         GLTexturePtr(const ResourcePtr& r) : SharedPtr<GLTexture>()
00117         {
00118             // lock & copy other mutex pointer
00119             OGRE_MUTEX_CONDITIONAL(r.OGRE_AUTO_MUTEX_NAME)
00120             {
00121                 OGRE_LOCK_MUTEX(*r.OGRE_AUTO_MUTEX_NAME)
00122                 OGRE_COPY_AUTO_SHARED_MUTEX(r.OGRE_AUTO_MUTEX_NAME)
00123                 pRep = static_cast<GLTexture*>(r.getPointer());
00124                 pUseCount = r.useCountPointer();
00125                 if (pUseCount)
00126                 {
00127                     ++(*pUseCount);
00128                 }
00129             }
00130         }
00131         GLTexturePtr(const TexturePtr& r) : SharedPtr<GLTexture>()
00132         {
00133             *this = r;
00134         }
00135 
00137         GLTexturePtr& operator=(const ResourcePtr& r)
00138         {
00139             if (pRep == static_cast<GLTexture*>(r.getPointer()))
00140                 return *this;
00141             release();
00142             // lock & copy other mutex pointer
00143             OGRE_MUTEX_CONDITIONAL(r.OGRE_AUTO_MUTEX_NAME)
00144             {
00145                 OGRE_LOCK_MUTEX(*r.OGRE_AUTO_MUTEX_NAME)
00146                 OGRE_COPY_AUTO_SHARED_MUTEX(r.OGRE_AUTO_MUTEX_NAME)
00147                 pRep = static_cast<GLTexture*>(r.getPointer());
00148                 pUseCount = r.useCountPointer();
00149                 if (pUseCount)
00150                 {
00151                     ++(*pUseCount);
00152                 }
00153             }
00154             else
00155             {
00156                 // RHS must be a null pointer
00157                 assert(r.isNull() && "RHS must be null if it has no mutex!");
00158                 setNull();
00159             }
00160             return *this;
00161         }
00163         GLTexturePtr& operator=(const TexturePtr& r)
00164         {
00165             if (pRep == static_cast<GLTexture*>(r.getPointer()))
00166                 return *this;
00167             release();
00168             // lock & copy other mutex pointer
00169             OGRE_MUTEX_CONDITIONAL(r.OGRE_AUTO_MUTEX_NAME)
00170             {
00171                 OGRE_LOCK_MUTEX(*r.OGRE_AUTO_MUTEX_NAME)
00172                 OGRE_COPY_AUTO_SHARED_MUTEX(r.OGRE_AUTO_MUTEX_NAME)
00173                 pRep = static_cast<GLTexture*>(r.getPointer());
00174                 pUseCount = r.useCountPointer();
00175                 if (pUseCount)
00176                 {
00177                     ++(*pUseCount);
00178                 }
00179             }
00180             else
00181             {
00182                 // RHS must be a null pointer
00183                 assert(r.isNull() && "RHS must be null if it has no mutex!");
00184                 setNull();
00185             }
00186             return *this;
00187         }
00188     };
00189 }
00190 
00191 #endif // __GLTEXTURE_H__

Copyright © 2012 Torus Knot Software Ltd
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This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.
Last modified Fri May 25 2012 21:48:50