source: GTP/trunk/Lib/Vis/OnlineCullingCHC/OGRE/src/OgrePlatformOcclusionQuery.cpp @ 2555

Revision 2555, 1.3 KB checked in by mattausch, 17 years ago (diff)

added partial implementation of chc++. problem: bounding box rendering in Ogre is VERY slow
Line 
1#include "OgrePlatformOcclusionQuery.h"
2#include <OgreLogManager.h>
3
4namespace Ogre {
5
6//-----------------------------------------------------------------------
7PlatformOcclusionQuery::PlatformOcclusionQuery(RenderSystem *rsys)
8{
9        mHardwareOcclusionQuery = rsys->createHardwareOcclusionQuery();
10}
11//-----------------------------------------------------------------------
12PlatformOcclusionQuery::~PlatformOcclusionQuery()
13{
14        // hardwareocclusion query is deleted by Ogre
15        //delete mHardwareOcclusionQuery;
16}
17//-----------------------------------------------------------------------
18void PlatformOcclusionQuery::BeginQuery()
19{
20        mHardwareOcclusionQuery->beginOcclusionQuery();
21}
22//-----------------------------------------------------------------------
23void PlatformOcclusionQuery::EndQuery()
24{
25        mHardwareOcclusionQuery->endOcclusionQuery();
26}
27//-----------------------------------------------------------------------
28bool PlatformOcclusionQuery::GetQueryResult(unsigned int &visiblePixels,
29                                                                                        const bool waitForResult) const
30{
31        if (waitForResult || !mHardwareOcclusionQuery->isStillOutstanding())
32        {
33                //return mHardwareOcclusionQuery->pullOcclusionQuery(&visiblePixels);
34                mHardwareOcclusionQuery->pullOcclusionQuery(&visiblePixels);
35                return true;
36        }
37
38        return false;
39}
40
41} // namespace Ogre
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