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# OgreHardwareIndexBuffer.cpp

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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 © 2000-2002 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 #include "OgreStableHeaders.h"
    00026 #include "OgreHardwareIndexBuffer.h"
    00027 #include "OgreHardwareBufferManager.h"
    00028 #include "OgreDefaultHardwareBufferManager.h"
    00029
    00030
    00031 namespace Ogre {
    00032
    00033     //-----------------------------------------------------------------------------
    00034     HardwareIndexBuffer::HardwareIndexBuffer(IndexType idxType,
    00035         size_t numIndexes, HardwareBuffer::Usage usage,
    00036         bool useSystemMemory, bool useShadowBuffer)
    00037         : HardwareBuffer(usage, useSystemMemory, useShadowBuffer), mIndexType(idxType), mNumIndexes(numIndexes)
    00038     {
    00039         // Calculate the size of the indexes
    00040         switch (mIndexType)
    00041         {
    00042         case IT_16BIT:
    00043             mIndexSize = sizeof(unsigned short);
    00044             break;
    00045         case IT_32BIT:
    00046             mIndexSize = sizeof(unsigned int);
    00047             break;
    00048         }
    00049         mSizeInBytes = mIndexSize * mNumIndexes;
    00050
    00051         // Create a shadow buffer if required
    00052         if (mUseShadowBuffer)
    00053         {
    00054             mpShadowBuffer = new DefaultHardwareIndexBuffer(mIndexType,
    00055                 mNumIndexes, HardwareBuffer::HBU_DYNAMIC);
    00056         }
    00057
    00058
    00059     }
    00060     //-----------------------------------------------------------------------------
    00061     HardwareIndexBuffer::~HardwareIndexBuffer()
    00062     {
    00063         if (mpShadowBuffer)
    00064         {
    00065             delete mpShadowBuffer;
    00066         }
    00067     }
    00068     //-----------------------------------------------------------------------------
    00069     HardwareIndexBufferSharedPtr::HardwareIndexBufferSharedPtr(HardwareIndexBuffer* buf)
    00070         : SharedPtr<HardwareIndexBuffer>(buf)
    00071     {
    00072
    00073     }
    00074
    00075 }
    00076

Copyright © 2002-2003 by The OGRE Team
Last modified Sun Nov 28 19:48:29 2004