# 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) 2000-2005 The OGRE Team
    00008 Also see acknowledgements in Readme.html
    00009
    00010 This program is free software; you can redistribute it and/or modify it under
    00011 the terms of the GNU Lesser General Public License as published by the Free Software
    00012 Foundation; either version 2 of the License, or (at your option) any later
    00013 version.
    00014
    00015 This program is distributed in the hope that it will be useful, but WITHOUT
    00016 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
    00017 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
    00018
    00019 You should have received a copy of the GNU Lesser General Public License along with
    00020 this program; if not, write to the Free Software Foundation, Inc., 59 Temple
    00021 Place - Suite 330, Boston, MA 02111-1307, USA, or go to
    00022 http://www.gnu.org/copyleft/lesser.txt.
    00023 -----------------------------------------------------------------------------
    00024 */
    00025
    00026 #ifndef __GLTEXTURE_H__
    00027 #define __GLTEXTURE_H__
    00028
    00029 #include "OgreGLPrerequisites.h"
    00030 #include "OgrePlatform.h"
    00031 #include "OgreRenderTexture.h"
    00032 #include "OgreTexture.h"
    00033 #include "OgreGLSupport.h"
    00034 #include "OgreHardwarePixelBuffer.h"
    00035
    00036 namespace Ogre {
    00037
    00038     class GLTexture : public Texture
    00039     {
    00040     public:
    00041         // Constructor
    00042         GLTexture(ResourceManager* creator, const String& name, ResourceHandle handle,
    00043             const String& group, bool isManual, ManualResourceLoader* loader,
    00044             GLSupport& support);
    00045
    00046         virtual ~GLTexture();
    00047
    00048         void loadImage( const Image& img );
    00049         void createRenderTexture();
    00050
    00052         HardwarePixelBufferSharedPtr getBuffer(size_t face, size_t mipmap);
    00053
    00054         // Takes the OGRE texture type (1d/2d/3d/cube) and returns the appropriate GL one
    00055         GLenum getGLTextureTarget(void) const;
    00056
    00057         GLuint getGLID() const
    00058         { return mTextureID; }
    00059
    00060     protected:
    00062         void createInternalResourcesImpl(void);
    00064         void loadImpl(void);
    00066         void freeInternalResourcesImpl(void);
    00067
    00073         void _createSurfaceList();
    00074     private:
    00075         GLuint mTextureID;
    00076         GLSupport& mGLSupport;
    00077
    00079         typedef std::vector<HardwarePixelBufferSharedPtr> SurfaceList;
    00080         SurfaceList mSurfaceList;
    00081     };
    00082
    00089     class GLTexturePtr : public SharedPtr<GLTexture>
    00090     {
    00091     public:
    00092         GLTexturePtr() : SharedPtr<GLTexture>() {}
    00093         explicit GLTexturePtr(GLTexture* rep) : SharedPtr<GLTexture>(rep) {}
    00094         GLTexturePtr(const GLTexturePtr& r) : SharedPtr<GLTexture>(r) {}
    00095         GLTexturePtr(const ResourcePtr& r) : SharedPtr<GLTexture>()
    00096         {
    00097             // lock & copy other mutex pointer
    00098             OGRE_LOCK_MUTEX(*r.OGRE_AUTO_MUTEX_NAME)
    00099             OGRE_COPY_AUTO_SHARED_MUTEX(r.OGRE_AUTO_MUTEX_NAME)
    00100             pRep = static_cast<GLTexture*>(r.getPointer());
    00101             pUseCount = r.useCountPointer();
    00102             if (pUseCount)
    00103             {
    00104                 ++(*pUseCount);
    00105             }
    00106         }
    00107
    00109         GLTexturePtr& operator=(const ResourcePtr& r)
    00110         {
    00111             if (pRep == static_cast<GLTexture*>(r.getPointer()))
    00112                 return *this;
    00113             release();
    00114             // lock & copy other mutex pointer
    00115             OGRE_LOCK_MUTEX(*r.OGRE_AUTO_MUTEX_NAME)
    00116             OGRE_COPY_AUTO_SHARED_MUTEX(r.OGRE_AUTO_MUTEX_NAME)
    00117             pRep = static_cast<GLTexture*>(r.getPointer());
    00118             pUseCount = r.useCountPointer();
    00119             if (pUseCount)
    00120             {
    00121                 ++(*pUseCount);
    00122             }
    00123             return *this;
    00124         }
    00126         GLTexturePtr& operator=(const TexturePtr& r)
    00127         {
    00128             if (pRep == static_cast<GLTexture*>(r.getPointer()))
    00129                 return *this;
    00130             release();
    00131             // lock & copy other mutex pointer
    00132             OGRE_LOCK_MUTEX(*r.OGRE_AUTO_MUTEX_NAME)
    00133             OGRE_COPY_AUTO_SHARED_MUTEX(r.OGRE_AUTO_MUTEX_NAME)
    00134             pRep = static_cast<GLTexture*>(r.getPointer());
    00135             pUseCount = r.useCountPointer();
    00136             if (pUseCount)
    00137             {
    00138                 ++(*pUseCount);
    00139             }
    00140             return *this;
    00141         }
    00142     };
    00143
    00145     class GLRenderTexture : public RenderTexture
    00146     {
    00147     public:
    00148         GLRenderTexture(const String& name, uint width, uint height, TextureType texType, PixelFormat format,
    00149             const NameValuePairList *miscParams)
    00150             : RenderTexture(name, width, height, texType, format)
    00151         {
    00152             mGLTexture = mTexture;
    00153         }
    00154
    00155         void _copyToTexture(void);
    00156
    00157         bool requiresTextureFlipping() const { return true; }
    00158         virtual void writeContentsToFile( const String & filename );
    00159     protected:
    00160         GLTexturePtr mGLTexture;
    00161     };
    00162 }
    00163
    00164 #endif // __GLTEXTURE_H__

Copyright © 2000-2005 by The OGRE Team
This work is licensed under a Creative Commons Attribution-ShareAlike 2.5 License.
Last modified Sun Feb 12 12:59:45 2006