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 __HardwareBufferManager__ 00026 #define __HardwareBufferManager__ 00027 00028 // Precompiler options 00029 #include "OgrePrerequisites.h" 00030 00031 #include "OgreSingleton.h" 00032 #include "OgreHardwareVertexBuffer.h" 00033 #include "OgreHardwareIndexBuffer.h" 00034 00035 00036 namespace Ogre { 00037 00048 class _OgreExport HardwareBufferLicensee 00049 { 00050 public: 00051 virtual ~HardwareBufferLicensee() { } 00054 virtual void licenseExpired(HardwareBuffer* buffer) = 0; 00055 }; 00056 00058 class _OgreExport TempBlendedBufferInfo : public HardwareBufferLicensee 00059 { 00060 public: 00061 // Pre-blended 00062 HardwareVertexBufferSharedPtr srcPositionBuffer; 00063 HardwareVertexBufferSharedPtr srcNormalBuffer; 00064 // Post-blended 00065 HardwareVertexBufferSharedPtr destPositionBuffer; 00066 HardwareVertexBufferSharedPtr destNormalBuffer; 00068 bool posNormalShareBuffer; 00069 unsigned short posBindIndex; 00070 unsigned short normBindIndex; 00071 bool bindPositions; 00072 bool bindNormals; 00073 00075 void checkoutTempCopies(bool positions = true, bool normals = true); 00077 void bindTempCopies(VertexData* targetData, bool suppressHardwareUpload); 00079 void licenseExpired(HardwareBuffer* buffer); 00080 }; 00081 00082 00085 class _OgreExport HardwareBufferManager : public Singleton<HardwareBufferManager> 00086 { 00087 friend class HardwareVertexBufferSharedPtr; 00088 friend class HardwareIndexBufferSharedPtr; 00089 protected: 00090 typedef std::list<VertexDeclaration*> VertexDeclarationList; 00091 typedef std::list<VertexBufferBinding*> VertexBufferBindingList; 00092 00093 VertexDeclarationList mVertexDeclarations; 00094 VertexBufferBindingList mVertexBufferBindings; 00095 00096 00097 virtual void destroyAllDeclarations(void); 00098 virtual void destroyAllBindings(void); 00099 00100 public: 00101 00102 enum BufferLicenseType 00103 { 00105 BLT_MANUAL_RELEASE, 00107 BLT_AUTOMATIC_RELEASE 00108 }; 00109 00110 protected: 00112 class VertexBufferLicense 00113 { 00114 public: 00115 HardwareVertexBuffer* originalBufferPtr; 00116 BufferLicenseType licenseType; 00117 HardwareVertexBufferSharedPtr buffer; 00118 HardwareBufferLicensee* licensee; 00119 VertexBufferLicense( 00120 HardwareVertexBuffer* orig, 00121 BufferLicenseType ltype, 00122 HardwareVertexBufferSharedPtr buf, 00123 HardwareBufferLicensee* lic) 00124 : originalBufferPtr(orig), licenseType(ltype), buffer(buf), licensee(lic) {} 00125 00126 }; 00127 00129 typedef std::vector<HardwareVertexBufferSharedPtr> FreeTemporaryVertexBufferList; 00131 typedef std::map<HardwareVertexBuffer*, FreeTemporaryVertexBufferList*> FreeTemporaryVertexBufferMap; 00133 FreeTemporaryVertexBufferMap mFreeTempVertexBufferMap; 00135 typedef std::vector<VertexBufferLicense> TemporaryVertexBufferLicenseList; 00137 TemporaryVertexBufferLicenseList mTempVertexBufferLicenses; 00138 00139 typedef std::set<HardwareVertexBuffer*> VertexBufferList; 00140 typedef std::set<HardwareIndexBuffer*> IndexBufferList; 00141 VertexBufferList mVertexBuffers; 00142 IndexBufferList mIndexBuffers; 00143 00144 00146 HardwareVertexBufferSharedPtr makeBufferCopy( 00147 const HardwareVertexBufferSharedPtr& source, 00148 HardwareBuffer::Usage usage, bool useShadowBuffer); 00149 00150 public: 00151 HardwareBufferManager(); 00152 virtual ~HardwareBufferManager(); 00181 virtual HardwareVertexBufferSharedPtr 00182 createVertexBuffer(size_t vertexSize, size_t numVerts, HardwareBuffer::Usage usage, 00183 bool useShadowBuffer = false) = 0; 00200 virtual HardwareIndexBufferSharedPtr 00201 createIndexBuffer(HardwareIndexBuffer::IndexType itype, size_t numIndexes, 00202 HardwareBuffer::Usage usage, bool useShadowBuffer = false) = 0; 00204 virtual VertexDeclaration* createVertexDeclaration(void); 00206 virtual void destroyVertexDeclaration(VertexDeclaration* decl); 00207 00209 virtual VertexBufferBinding* createVertexBufferBinding(void); 00211 virtual void destroyVertexBufferBinding(VertexBufferBinding* binding); 00212 00218 virtual void registerVertexBufferSourceAndCopy( 00219 const HardwareVertexBufferSharedPtr& sourceBuffer, 00220 const HardwareVertexBufferSharedPtr& copy); 00221 00238 virtual HardwareVertexBufferSharedPtr allocateVertexBufferCopy( 00239 const HardwareVertexBufferSharedPtr& sourceBuffer, 00240 BufferLicenseType licenseType, 00241 HardwareBufferLicensee* licensee, 00242 bool copyData = false); 00251 virtual void releaseVertexBufferCopy( 00252 const HardwareVertexBufferSharedPtr& bufferCopy); 00253 00256 virtual void _releaseBufferCopies(void); 00257 00265 virtual void _forceReleaseBufferCopies( 00266 const HardwareVertexBufferSharedPtr& sourceBuffer); 00267 00269 void _notifyVertexBufferDestroyed(HardwareVertexBuffer* buf); 00271 void _notifyIndexBufferDestroyed(HardwareIndexBuffer* buf); 00272 00288 static HardwareBufferManager& getSingleton(void); 00304 static HardwareBufferManager* getSingletonPtr(void); 00305 00306 }; 00307 00308 } 00309 00310 #endif 00311
Copyright © 2000-2005 by The OGRE Team
Last modified Sun Apr 10 23:21:16 2005