This work is licensed under a Creative Commons Attribution-ShareAlike 2.5 License.
Last modified Sun Mar 12 14:37:42 2006
00001 /* 00002 ----------------------------------------------------------------------------- 00003 This source file is part of OGRE 00004 (Object-oriented Graphics Rendering Engine) 00005 For the latest info, see http://ogre.sourceforge.net/ 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 _HardwareOcclusionQuery__ 00026 #define _HardwareOcclusionQuery__ 00027 00028 // Precompiler options 00029 #include "OgrePrerequisites.h" 00030 00031 namespace Ogre { 00032 00033 00034 00042 class _OgreExport HardwareOcclusionQuery 00043 { 00044 //---------------------------------------------------------------------- 00045 // Public methods 00046 //-- 00047 public: 00056 HardwareOcclusionQuery(); 00057 00061 virtual ~HardwareOcclusionQuery(); 00062 00079 virtual void beginOcclusionQuery() = 0; 00080 00084 virtual void endOcclusionQuery() = 0; 00085 00091 virtual bool pullOcclusionQuery(unsigned int* NumOfFragments) = 0; 00092 00098 unsigned int getLastQuerysPixelcount() const { return mPixelCount; } 00099 00104 virtual bool HardwareOcclusionQuery::isStillOutstanding(void) = 0; 00105 00106 00107 //---------------------------------------------------------------------- 00108 // protected members 00109 //-- 00110 protected : 00111 // numbers of visible pixels determined by last query 00112 unsigned int mPixelCount; 00113 // is query hasn't yet returned a result. 00114 bool mIsQueryResultStillOutstanding; 00115 }; 00116 00117 } 00118 #endif 00119
Copyright © 2000-2005 by The OGRE Team
This work is licensed under a Creative Commons Attribution-ShareAlike 2.5 License.
Last modified Sun Mar 12 14:37:42 2006