This work is licensed under a Creative Commons Attribution-ShareAlike 2.5 License.
Last modified Sun Feb 12 12:59:46 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 00037 typedef enum _OCCLUSIONQUERY 00038 { 00039 HWOCCLUSIONQUERY_FLUSH, 00040 HWOCCLUSIONQUERY_NOFLUSH, 00041 } HW_OCCLUSIONQUERY; 00042 00050 class _OgreExport HardwareOcclusionQuery 00051 { 00052 //---------------------------------------------------------------------- 00053 // Public methods 00054 //-- 00055 public: 00064 HardwareOcclusionQuery(); 00065 00069 virtual ~HardwareOcclusionQuery(); 00070 00089 virtual void beginOcclusionQuery() = 0; 00090 00094 virtual void endOcclusionQuery() = 0; 00095 00103 virtual bool pullOcclusionQuery(unsigned int* NumOfFragments, const HW_OCCLUSIONQUERY flag = HWOCCLUSIONQUERY_FLUSH) = 0; 00104 00110 virtual unsigned int getLastQuerysPixelcount() = 0; 00111 00116 virtual bool HardwareOcclusionQuery::isStillOutstanding(void) = 0; 00127 virtual void setSkipRate( int skip ) = 0; 00128 virtual int getSkipRate() = 0; 00129 00130 //---------------------------------------------------------------------- 00131 // Private members 00132 //-- 00133 private: 00134 00135 }; 00136 00137 } 00138 #endif 00139
Copyright © 2000-2005 by The OGRE Team
This work is licensed under a Creative Commons Attribution-ShareAlike 2.5 License.
Last modified Sun Feb 12 12:59:46 2006