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 #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 typedef std::set<HardwareVertexBuffer*> VertexBufferList; 00093 typedef std::set<HardwareIndexBuffer*> IndexBufferList; 00094 00095 VertexDeclarationList mVertexDeclarations; 00096 VertexBufferBindingList mVertexBufferBindings; 00097 VertexBufferList mVertexBuffers; 00098 IndexBufferList mIndexBuffers; 00099 00100 00102 virtual void destroyVertexBuffer(HardwareVertexBuffer* buf) = 0; 00104 virtual void destroyIndexBuffer(HardwareIndexBuffer* buf) = 0; 00105 00106 virtual void destroyAllDeclarations(void); 00107 virtual void destroyAllBindings(void); 00108 00109 public: 00110 00111 enum BufferLicenseType 00112 { 00114 BLT_MANUAL_RELEASE, 00116 BLT_AUTOMATIC_RELEASE 00117 }; 00118 00119 protected: 00121 class VertexBufferLicense 00122 { 00123 public: 00124 HardwareVertexBuffer* originalBufferPtr; 00125 BufferLicenseType licenseType; 00126 HardwareVertexBufferSharedPtr buffer; 00127 HardwareBufferLicensee* licensee; 00128 VertexBufferLicense( 00129 HardwareVertexBuffer* orig, 00130 BufferLicenseType ltype, 00131 HardwareVertexBufferSharedPtr buf, 00132 HardwareBufferLicensee* lic) 00133 : originalBufferPtr(orig), licenseType(ltype), buffer(buf), licensee(lic) {} 00134 00135 }; 00136 00138 typedef std::vector<HardwareVertexBufferSharedPtr> FreeTemporaryVertexBufferList; 00140 typedef std::map<HardwareVertexBuffer*, FreeTemporaryVertexBufferList*> FreeTemporaryVertexBufferMap; 00142 FreeTemporaryVertexBufferMap mFreeTempVertexBufferMap; 00144 typedef std::vector<VertexBufferLicense> TemporaryVertexBufferLicenseList; 00146 TemporaryVertexBufferLicenseList mTempVertexBufferLicenses; 00147 00149 HardwareVertexBufferSharedPtr makeBufferCopy( 00150 const HardwareVertexBufferSharedPtr& source, 00151 HardwareBuffer::Usage usage, bool useShadowBuffer); 00152 00153 public: 00154 HardwareBufferManager(); 00155 virtual ~HardwareBufferManager(); 00184 virtual HardwareVertexBufferSharedPtr 00185 createVertexBuffer(size_t vertexSize, size_t numVerts, HardwareBuffer::Usage usage, 00186 bool useShadowBuffer = false) = 0; 00203 virtual HardwareIndexBufferSharedPtr 00204 createIndexBuffer(HardwareIndexBuffer::IndexType itype, size_t numIndexes, 00205 HardwareBuffer::Usage usage, bool useShadowBuffer = false) = 0; 00207 virtual VertexDeclaration* createVertexDeclaration(void); 00209 virtual void destroyVertexDeclaration(VertexDeclaration* decl); 00210 00212 virtual VertexBufferBinding* createVertexBufferBinding(void); 00214 virtual void destroyVertexBufferBinding(VertexBufferBinding* binding); 00215 00221 virtual void registerVertexBufferSourceAndCopy( 00222 const HardwareVertexBufferSharedPtr& sourceBuffer, 00223 const HardwareVertexBufferSharedPtr& copy); 00224 00241 virtual HardwareVertexBufferSharedPtr allocateVertexBufferCopy( 00242 const HardwareVertexBufferSharedPtr& sourceBuffer, 00243 BufferLicenseType licenseType, 00244 HardwareBufferLicensee* licensee, 00245 bool copyData = false); 00254 virtual void releaseVertexBufferCopy( 00255 const HardwareVertexBufferSharedPtr& bufferCopy); 00256 00259 virtual void _releaseBufferCopies(void); 00260 00268 virtual void _forceReleaseBufferCopies( 00269 const HardwareVertexBufferSharedPtr& sourceBuffer); 00285 static HardwareBufferManager& getSingleton(void); 00301 static HardwareBufferManager* getSingletonPtr(void); 00302 00303 }; 00304 00305 } 00306 00307 #endif 00308
Copyright © 2002-2003 by The OGRE Team
Last modified Fri May 14 23:22:16 2004