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 "OgreD3D9HardwareBufferManager.h" 00026 #include "OgreD3D9HardwareVertexBuffer.h" 00027 #include "OgreD3D9HardwareIndexBuffer.h" 00028 #include "OgreD3D9VertexDeclaration.h" 00029 00030 namespace Ogre { 00031 //----------------------------------------------------------------------- 00032 D3D9HardwareBufferManager::D3D9HardwareBufferManager(LPDIRECT3DDEVICE9 device) 00033 : mlpD3DDevice(device) 00034 { 00035 } 00036 //----------------------------------------------------------------------- 00037 D3D9HardwareBufferManager::~D3D9HardwareBufferManager() 00038 { 00039 destroyAllDeclarations(); 00040 destroyAllBindings(); 00041 } 00042 //----------------------------------------------------------------------- 00043 HardwareVertexBufferSharedPtr 00044 D3D9HardwareBufferManager:: 00045 createVertexBuffer(size_t vertexSize, size_t numVerts, HardwareBuffer::Usage usage, 00046 bool useShadowBuffer) 00047 { 00048 #if OGRE_D3D_MANAGE_BUFFERS 00049 // Override shadow buffer setting; managed buffers are automatically 00050 // backed by system memory 00051 // Don't override shadow buffer if discardable, since then we use 00052 // unmanaged buffers for speed (avoids write-through overhead) 00053 if (useShadowBuffer && !(usage & HardwareBuffer::HBU_DISCARDABLE)) 00054 { 00055 useShadowBuffer = false; 00056 // Also drop any WRITE_ONLY so we can read direct 00057 if (usage == HardwareBuffer::HBU_DYNAMIC_WRITE_ONLY) 00058 { 00059 usage = HardwareBuffer::HBU_DYNAMIC; 00060 } 00061 else if (usage == HardwareBuffer::HBU_STATIC_WRITE_ONLY) 00062 { 00063 usage = HardwareBuffer::HBU_STATIC; 00064 } 00065 } 00066 #endif 00067 return HardwareVertexBufferSharedPtr( 00068 new D3D9HardwareVertexBuffer(vertexSize, 00069 numVerts, usage, mlpD3DDevice, false, useShadowBuffer) ); 00070 } 00071 //----------------------------------------------------------------------- 00072 void D3D9HardwareBufferManager::destroyVertexBuffer(HardwareVertexBuffer* buf) 00073 { 00074 delete buf; 00075 } 00076 //----------------------------------------------------------------------- 00077 void D3D9HardwareBufferManager::destroyAllDeclarations(void) 00078 { 00079 VertexDeclarationList::iterator decl; 00080 for (decl = mVertexDeclarations.begin(); decl != mVertexDeclarations.end(); ++decl) 00081 { 00082 delete *decl; 00083 } 00084 mVertexDeclarations.clear(); 00085 } 00086 //----------------------------------------------------------------------- 00087 HardwareIndexBufferSharedPtr 00088 D3D9HardwareBufferManager:: 00089 createIndexBuffer(HardwareIndexBuffer::IndexType itype, size_t numIndexes, 00090 HardwareBuffer::Usage usage, bool useShadowBuffer) 00091 { 00092 #if OGRE_D3D_MANAGE_BUFFERS 00093 // Override shadow buffer setting; managed buffers are automatically 00094 // backed by system memory 00095 if (useShadowBuffer) 00096 { 00097 useShadowBuffer = false; 00098 // Also drop any WRITE_ONLY so we can read direct 00099 if (usage == HardwareBuffer::HBU_DYNAMIC_WRITE_ONLY) 00100 { 00101 usage = HardwareBuffer::HBU_DYNAMIC; 00102 } 00103 else if (usage == HardwareBuffer::HBU_STATIC_WRITE_ONLY) 00104 { 00105 usage = HardwareBuffer::HBU_STATIC; 00106 } 00107 } 00108 #endif 00109 // NB no longer store the buffer in a local list since reference counted 00110 return HardwareIndexBufferSharedPtr( 00111 new D3D9HardwareIndexBuffer(itype, numIndexes, 00112 usage, mlpD3DDevice, false, useShadowBuffer) ); 00113 00114 } 00115 //----------------------------------------------------------------------- 00116 void D3D9HardwareBufferManager::destroyIndexBuffer(HardwareIndexBuffer* buf) 00117 { 00118 delete buf; 00119 } 00120 //----------------------------------------------------------------------- 00121 VertexDeclaration* D3D9HardwareBufferManager::createVertexDeclaration(void) 00122 { 00123 VertexDeclaration* decl = new D3D9VertexDeclaration(mlpD3DDevice); 00124 mVertexDeclarations.push_back(decl); 00125 return decl; 00126 00127 } 00128 //----------------------------------------------------------------------- 00129 void D3D9HardwareBufferManager::destroyVertexDeclaration(VertexDeclaration* decl) 00130 { 00131 mVertexDeclarations.remove(decl); 00132 delete decl; 00133 } 00134 00135 }
Copyright © 2002-2003 by The OGRE Team
Last modified Sun Nov 28 19:48:20 2004