source: OGRE/trunk/ogrenew/Docs/api/html/OgreD3D9HardwareOcclusionQuery_8h-source.html @ 657

Revision 657, 12.3 KB checked in by mattausch, 18 years ago (diff)

added ogre dependencies and patched ogre sources
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10<h1>OgreD3D9HardwareOcclusionQuery.h</h1><a href="OgreD3D9HardwareOcclusionQuery_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 <span class="comment">/*</span>
1100002 <span class="comment">-----------------------------------------------------------------------------</span>
1200003 <span class="comment">This source file is part of OGRE</span>
1300004 <span class="comment">(Object-oriented Graphics Rendering Engine)</span>
1400005 <span class="comment">For the latest info, see http://ogre.sourceforge.net/</span>
1500006 <span class="comment"></span>
1600007 <span class="comment">Copyright (c) 2000-2005 The OGRE Team</span>
1700008 <span class="comment">Also see acknowledgements in Readme.html</span>
1800009 <span class="comment"></span>
1900010 <span class="comment">This program is free software; you can redistribute it and/or modify it under</span>
2000011 <span class="comment">the terms of the GNU Lesser General Public License as published by the Free Software</span>
2100012 <span class="comment">Foundation; either version 2 of the License, or (at your option) any later</span>
2200013 <span class="comment">version.</span>
2300014 <span class="comment"></span>
2400015 <span class="comment">This program is distributed in the hope that it will be useful, but WITHOUT</span>
2500016 <span class="comment">ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS</span>
2600017 <span class="comment">FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.</span>
2700018 <span class="comment"></span>
2800019 <span class="comment">You should have received a copy of the GNU Lesser General Public License along with</span>
2900020 <span class="comment">this program; if not, write to the Free Software Foundation, Inc., 59 Temple</span>
3000021 <span class="comment">Place - Suite 330, Boston, MA 02111-1307, USA, or go to</span>
3100022 <span class="comment">http://www.gnu.org/copyleft/lesser.txt.</span>
3200023 <span class="comment">-----------------------------------------------------------------------------</span>
3300024 <span class="comment">*/</span>
3400025
3500026 <span class="preprocessor">#ifndef _D3D9HARWAREOCCLUSIONQUERY_H__</span>
3600027 <span class="preprocessor"></span><span class="preprocessor">#define _D3D9HARWAREOCCLUSIONQUERY_H__</span>
3700028 <span class="preprocessor"></span>
3800029 <span class="preprocessor">#include "<a class="code" href="OgreD3D9Prerequisites_8h.html">OgreD3D9Prerequisites.h</a>"</span>
3900030 <span class="preprocessor">#include "<a class="code" href="OgreHardwareOcclusionQuery_8h.html">OgreHardwareOcclusionQuery.h</a>"</span>
4000031
4100032
4200033 <span class="keyword">namespace </span>Ogre {
4300034
4400035     <span class="comment">// If you use multiple rendering passes you can test only the first pass and all other passes don't have to be rendered </span>
4500036     <span class="comment">// if the first pass results has too few pixels visible.</span>
4600037
4700038     <span class="comment">// Be sure to render all occluder first and whats out so the RenderQue don't switch places on </span>
4800039     <span class="comment">// the occluding objects and the tested objects because it thinks it's more effective..</span>
4900040
50<a name="l00050"></a><a class="code" href="classOgre_1_1D3D9HardwareOcclusionQuery.html">00050</a>     <span class="keyword">class </span><a class="code" href="classOgre_1_1D3D9HardwareOcclusionQuery.html">D3D9HardwareOcclusionQuery</a> : <span class="keyword">public</span> <a class="code" href="classOgre_1_1HardwareOcclusionQuery.html">HardwareOcclusionQuery</a>
5100051     {
5200052         <span class="comment">//----------------------------------------------------------------------</span>
5300053         <span class="comment">// Public methods</span>
5400054         <span class="comment">//--</span>
5500055     <span class="keyword">public</span>:
5600056
5700061         <a class="code" href="classOgre_1_1D3D9HardwareOcclusionQuery.html#Ogre_1_1D3D9HardwareOcclusionQuerya0">D3D9HardwareOcclusionQuery</a>( IDirect3DDevice9* pD3DDevice );
5800062
5900066         <a class="code" href="classOgre_1_1D3D9HardwareOcclusionQuery.html#Ogre_1_1D3D9HardwareOcclusionQuerya1">~D3D9HardwareOcclusionQuery</a>();
6000067
6100068         <span class="comment">//------------------------------------------------------------------</span>
6200069         <span class="comment">// Occlusion query functions (see base class documentation for this)</span>
6300070         <span class="comment">//--</span>
6400071
6500072         <span class="keywordtype">void</span> <a class="code" href="classOgre_1_1D3D9HardwareOcclusionQuery.html#Ogre_1_1D3D9HardwareOcclusionQuerya2">beginOcclusionQuery</a>();
6600073         <span class="keywordtype">void</span> <a class="code" href="classOgre_1_1D3D9HardwareOcclusionQuery.html#Ogre_1_1D3D9HardwareOcclusionQuerya3">endOcclusionQuery</a>();
6700074         <span class="keywordtype">bool</span> <a class="code" href="classOgre_1_1D3D9HardwareOcclusionQuery.html#Ogre_1_1D3D9HardwareOcclusionQuerya4">pullOcclusionQuery</a>( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>* NumOfFragments, <span class="keyword">const</span> <a class="code" href="namespaceOgre.html#a138">HW_OCCLUSIONQUERY</a> flag = <a class="code" href="namespaceOgre.html#a654a139">HWOCCLUSIONQUERY_FLUSH</a>);
68<a name="l00075"></a><a class="code" href="classOgre_1_1D3D9HardwareOcclusionQuery.html#Ogre_1_1D3D9HardwareOcclusionQuerya5">00075</a>         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classOgre_1_1D3D9HardwareOcclusionQuery.html#Ogre_1_1D3D9HardwareOcclusionQuerya5">getLastQuerysPixelcount</a>() { <span class="keywordflow">return</span> <a class="code" href="classOgre_1_1D3D9HardwareOcclusionQuery.html#Ogre_1_1D3D9HardwareOcclusionQueryp0">mPixelCount</a>; }
6900076         <span class="keywordtype">bool</span> <a class="code" href="classOgre_1_1D3D9HardwareOcclusionQuery.html#Ogre_1_1D3D9HardwareOcclusionQuerya6">isStillOutstanding</a>(<span class="keywordtype">void</span>);
7000077
7100078         <span class="comment">// These functions are optional, it's a simple filter that simply skips some hardware occlusion tests on visible objects only</span>
7200079         <span class="comment">// It's easy to use if you don't have to keep track of which objects are visible (can be skipped) and what objects arn't visible..</span>
7300080         <span class="comment">// (None visible objects and object you introduce for the first time have always to be tested although the cheapest possible </span>
7400081         <span class="comment">// LOD (Level Of Detail) mesh and material-wise). </span>
7500082
76<a name="l00092"></a><a class="code" href="classOgre_1_1D3D9HardwareOcclusionQuery.html#Ogre_1_1D3D9HardwareOcclusionQuerya7">00092</a>         <span class="keywordtype">void</span> <a class="code" href="classOgre_1_1D3D9HardwareOcclusionQuery.html#Ogre_1_1D3D9HardwareOcclusionQuerya7">setSkipRate</a>( <span class="keywordtype">int</span> skip ) { <a class="code" href="classOgre_1_1D3D9HardwareOcclusionQuery.html#Ogre_1_1D3D9HardwareOcclusionQueryp4">mSkipInterval</a> = skip; }          <span class="comment">// Using 2 only 50 % of the tests are actually made and 3 results in only 33% of the tests. So on.</span>
77<a name="l00093"></a><a class="code" href="classOgre_1_1D3D9HardwareOcclusionQuery.html#Ogre_1_1D3D9HardwareOcclusionQuerya8">00093</a>         <span class="keywordtype">int</span>  <a class="code" href="classOgre_1_1D3D9HardwareOcclusionQuery.html#Ogre_1_1D3D9HardwareOcclusionQuerya8">getSkipRate</a>() { <span class="keywordflow">return</span> <a class="code" href="classOgre_1_1D3D9HardwareOcclusionQuery.html#Ogre_1_1D3D9HardwareOcclusionQueryp4">mSkipInterval</a>; }
7800094
7900095         <span class="comment">//----------------------------------------------------------------------</span>
8000096         <span class="comment">// Protected members</span>
8100097         <span class="comment">//--</span>
8200098     <span class="keyword">protected</span>:
8300099
84<a name="l00100"></a><a class="code" href="classOgre_1_1D3D9HardwareOcclusionQuery.html#Ogre_1_1D3D9HardwareOcclusionQueryp0">00100</a>         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>        <a class="code" href="classOgre_1_1D3D9HardwareOcclusionQuery.html#Ogre_1_1D3D9HardwareOcclusionQueryp0">mPixelCount</a>;       
85<a name="l00101"></a><a class="code" href="classOgre_1_1D3D9HardwareOcclusionQuery.html#Ogre_1_1D3D9HardwareOcclusionQueryp1">00101</a>         IDirect3DQuery9*    <a class="code" href="classOgre_1_1D3D9HardwareOcclusionQuery.html#Ogre_1_1D3D9HardwareOcclusionQueryp1">mpQuery</a>;
86<a name="l00102"></a><a class="code" href="classOgre_1_1D3D9HardwareOcclusionQuery.html#Ogre_1_1D3D9HardwareOcclusionQueryp2">00102</a>         IDirect3DDevice9*   mpDevice;
87<a name="l00103"></a><a class="code" href="classOgre_1_1D3D9HardwareOcclusionQuery.html#Ogre_1_1D3D9HardwareOcclusionQueryp3">00103</a>         <span class="keywordtype">int</span>                 <a class="code" href="classOgre_1_1D3D9HardwareOcclusionQuery.html#Ogre_1_1D3D9HardwareOcclusionQueryp3">mSkipCounter</a>;
88<a name="l00104"></a><a class="code" href="classOgre_1_1D3D9HardwareOcclusionQuery.html#Ogre_1_1D3D9HardwareOcclusionQueryp4">00104</a>         <span class="keywordtype">int</span>                 <a class="code" href="classOgre_1_1D3D9HardwareOcclusionQuery.html#Ogre_1_1D3D9HardwareOcclusionQueryp4">mSkipInterval</a>;
89<a name="l00105"></a><a class="code" href="classOgre_1_1D3D9HardwareOcclusionQuery.html#Ogre_1_1D3D9HardwareOcclusionQueryp5">00105</a>         <span class="keywordtype">bool</span>                <a class="code" href="classOgre_1_1D3D9HardwareOcclusionQuery.html#Ogre_1_1D3D9HardwareOcclusionQueryp5">mHasOcclusionSupport</a>;
90<a name="l00106"></a><a class="code" href="classOgre_1_1D3D9HardwareOcclusionQuery.html#Ogre_1_1D3D9HardwareOcclusionQueryp6">00106</a>         <span class="keywordtype">bool</span>                <a class="code" href="classOgre_1_1D3D9HardwareOcclusionQuery.html#Ogre_1_1D3D9HardwareOcclusionQueryp6">mIsQueryResultStillOutstanding</a>;
9100107     };
9200108
9300109
9400110 }
9500111
9600112
9700113 <span class="preprocessor">#endif</span>
98</pre></div><hr>
99<p>
100Copyright &copy; 2000-2005 by The OGRE Team<br />
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