OgreGLHardwareVertexBuffer.h Source File

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 #ifndef __GLHARDWAREVERTEXBUFFER_H__
00026 #define __GLHARDWAREVERTEXBUFFER_H__
00027 
00028 #include "OgreGLPrerequisites.h"
00029 #include "OgreHardwareVertexBuffer.h"
00030 
00031 namespace Ogre {
00032 
00034     class GLHardwareVertexBuffer : public HardwareVertexBuffer 
00035     {
00036     private:
00037         GLuint mBufferId;
00038 
00039     protected:
00041         void* lockImpl(size_t offset, size_t length, LockOptions options);
00043         void unlockImpl(void);
00044     public:
00045         GLHardwareVertexBuffer(size_t vertexSize, size_t numVertices, 
00046             HardwareBuffer::Usage usage, bool useShadowBuffer); 
00047         ~GLHardwareVertexBuffer();
00049         void readData(size_t offset, size_t length, void* pDest);
00051         void writeData(size_t offset, size_t length, 
00052             const void* pSource, bool discardWholeBuffer = false);
00053 
00054         GLuint getGLBufferId(void) const { return mBufferId; }
00055     };
00056 
00057 }
00058 #endif // __GLHARDWAREVERTEXBUFFER_H__