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 #ifndef __GLHARDWAREINDEXBUFFER_H__ 00029 #define __GLHARDWAREINDEXBUFFER_H__ 00030 00031 #include "OgreGLPrerequisites.h" 00032 #include "OgreHardwareIndexBuffer.h" 00033 00034 namespace Ogre { 00035 00036 00037 class _OgreGLExport GLHardwareIndexBuffer : public HardwareIndexBuffer 00038 { 00039 private: 00040 GLuint mBufferId; 00041 // Scratch buffer handling 00042 bool mLockedToScratch; 00043 size_t mScratchOffset; 00044 size_t mScratchSize; 00045 void* mScratchPtr; 00046 bool mScratchUploadOnUnlock; 00047 protected: 00049 void* lockImpl(size_t offset, size_t length, LockOptions options); 00051 void unlockImpl(void); 00052 public: 00053 GLHardwareIndexBuffer(HardwareBufferManagerBase* mgr, IndexType idxType, size_t numIndexes, 00054 HardwareBuffer::Usage usage, bool useShadowBuffer); 00055 ~GLHardwareIndexBuffer(); 00057 void readData(size_t offset, size_t length, void* pDest); 00059 void writeData(size_t offset, size_t length, 00060 const void* pSource, bool discardWholeBuffer = false); 00062 void _updateFromShadow(void); 00063 00064 GLuint getGLBufferId(void) const { return mBufferId; } 00065 }; 00066 00067 } 00068 00069 #endif // __GLHARDWAREINDEXBUFFER_H__ 00070
Copyright © 2012 Torus Knot Software Ltd
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Last modified Sun Sep 2 2012 07:27:21