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OgreDefaultHardwareBufferManager.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 © 2000-2003 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 "OgreDefaultHardwareBufferManager.h"
00027 
00028 namespace Ogre {
00029 
00030     DefaultHardwareVertexBuffer::DefaultHardwareVertexBuffer(size_t vertexSize, size_t numVertices, 
00031         HardwareBuffer::Usage usage)
00032         : HardwareVertexBuffer(vertexSize, numVertices, usage, true, false) // always software, never shadowed
00033     {
00034         mpData = new unsigned char[mSizeInBytes];
00035     }
00036     //-----------------------------------------------------------------------
00037     DefaultHardwareVertexBuffer::~DefaultHardwareVertexBuffer()
00038     {
00039         delete [] mpData;
00040     }
00041     //-----------------------------------------------------------------------
00042     void* DefaultHardwareVertexBuffer::lockImpl(size_t offset, size_t length, LockOptions options)
00043     {
00044         // Only for use internally, no 'locking' as such
00045         return mpData + offset;
00046     }
00047     //-----------------------------------------------------------------------
00048     void DefaultHardwareVertexBuffer::unlockImpl(void)
00049     {
00050         // Nothing to do
00051     }
00052     //-----------------------------------------------------------------------
00053     void* DefaultHardwareVertexBuffer::lock(size_t offset, size_t length, LockOptions options)
00054     {
00055         mIsLocked = true;
00056         return mpData + offset;
00057     }
00058     //-----------------------------------------------------------------------
00059     void DefaultHardwareVertexBuffer::unlock(void)
00060     {
00061         mIsLocked = false;
00062         // Nothing to do
00063     }
00064     //-----------------------------------------------------------------------
00065     void DefaultHardwareVertexBuffer::readData(size_t offset, size_t length, void* pDest)
00066     {
00067         assert((offset + length) <= mSizeInBytes);
00068         memcpy(pDest, mpData + offset, length);
00069     }
00070     //-----------------------------------------------------------------------
00071     void DefaultHardwareVertexBuffer::writeData(size_t offset, size_t length, const void* pSource,
00072             bool discardWholeBuffer)
00073     {
00074         assert((offset + length) <= mSizeInBytes);
00075         // ignore discard, memory is not guaranteed to be zeroised
00076         memcpy(mpData + offset, pSource, length);
00077 
00078     }
00079     //-----------------------------------------------------------------------
00080 
00081     DefaultHardwareIndexBuffer::DefaultHardwareIndexBuffer(IndexType idxType, 
00082         size_t numIndexes, HardwareBuffer::Usage usage) 
00083         : HardwareIndexBuffer(idxType, numIndexes, usage, true, false) // always software, never shadowed
00084     {
00085         mpData = new unsigned char[mSizeInBytes];
00086     }
00087     //-----------------------------------------------------------------------
00088     DefaultHardwareIndexBuffer::~DefaultHardwareIndexBuffer()
00089     {
00090         delete [] mpData;
00091     }
00092     //-----------------------------------------------------------------------
00093     void* DefaultHardwareIndexBuffer::lockImpl(size_t offset, size_t length, LockOptions options)
00094     {
00095         // Only for use internally, no 'locking' as such
00096         return mpData + offset;
00097     }
00098     //-----------------------------------------------------------------------
00099     void DefaultHardwareIndexBuffer::unlockImpl(void)
00100     {
00101         // Nothing to do
00102     }
00103     //-----------------------------------------------------------------------
00104     void* DefaultHardwareIndexBuffer::lock(size_t offset, size_t length, LockOptions options)
00105     {
00106         mIsLocked = true;
00107         return mpData + offset;
00108     }
00109     //-----------------------------------------------------------------------
00110     void DefaultHardwareIndexBuffer::unlock(void)
00111     {
00112         mIsLocked = false;
00113         // Nothing to do
00114     }
00115     //-----------------------------------------------------------------------
00116     void DefaultHardwareIndexBuffer::readData(size_t offset, size_t length, void* pDest)
00117     {
00118         assert((offset + length) <= mSizeInBytes);
00119         memcpy(pDest, mpData + offset, length);
00120     }
00121     //-----------------------------------------------------------------------
00122     void DefaultHardwareIndexBuffer::writeData(size_t offset, size_t length, const void* pSource,
00123             bool discardWholeBuffer)
00124     {
00125         assert((offset + length) <= mSizeInBytes);
00126         // ignore discard, memory is not guaranteed to be zeroised
00127         memcpy(mpData + offset, pSource, length);
00128 
00129     }
00130     //-----------------------------------------------------------------------
00131     
00132     
00133     //-----------------------------------------------------------------------
00134     void DefaultHardwareBufferManager::destroyVertexBuffer(HardwareVertexBuffer* buf)
00135     {
00136         VertexBufferList::iterator i = mVertexBuffers.find(buf);
00137         if (i != mVertexBuffers.end())
00138         {
00139             delete *i;
00140             mVertexBuffers.erase(i);
00141         }
00142     }
00143     //-----------------------------------------------------------------------
00144     void DefaultHardwareBufferManager::destroyIndexBuffer(HardwareIndexBuffer* buf)
00145     {
00146         IndexBufferList::iterator i = mIndexBuffers.find(buf);
00147         if (i != mIndexBuffers.end())
00148         {
00149             delete *i;
00150             mIndexBuffers.erase(i);
00151         }
00152     }
00153     //-----------------------------------------------------------------------
00154     DefaultHardwareBufferManager::DefaultHardwareBufferManager()
00155     {
00156     }
00157     //-----------------------------------------------------------------------
00158     DefaultHardwareBufferManager::~DefaultHardwareBufferManager()
00159     {
00160         destroyAllDeclarations();
00161         destroyAllBindings(); 
00162     }
00163     //-----------------------------------------------------------------------
00164     HardwareVertexBufferSharedPtr 
00165         DefaultHardwareBufferManager::createVertexBuffer(size_t vertexSize, 
00166         size_t numVerts, HardwareBuffer::Usage usage, bool useShadowBuffer)
00167     {
00168         DefaultHardwareVertexBuffer* vb = new DefaultHardwareVertexBuffer(vertexSize, numVerts, usage);
00169         mVertexBuffers.insert(vb);
00170         return HardwareVertexBufferSharedPtr(vb);
00171     }
00172     //-----------------------------------------------------------------------
00173     HardwareIndexBufferSharedPtr 
00174         DefaultHardwareBufferManager::createIndexBuffer(HardwareIndexBuffer::IndexType itype, 
00175         size_t numIndexes, HardwareBuffer::Usage usage, bool useShadowBuffer)
00176     {
00177         DefaultHardwareIndexBuffer* ib = new DefaultHardwareIndexBuffer(itype, numIndexes, usage);
00178         mIndexBuffers.insert(ib);
00179         return HardwareIndexBufferSharedPtr(ib);
00180     }
00181 }

Copyright © 2002-2003 by The OGRE Team
Last modified Sun Nov 28 19:48:22 2004