Public Member Functions | Protected Attributes | Private Attributes
Ogre::GLHardwareOcclusionQuery Class Reference

This is a class that is the base class of the query class for hardware occlusion. More...

#include <OgreGLHardwareOcclusionQuery.h>

Inheritance diagram for Ogre::GLHardwareOcclusionQuery:
Inheritance graph
[legend]

List of all members.

Public Member Functions

 GLHardwareOcclusionQuery ()
 Default object constructor.
 ~GLHardwareOcclusionQuery ()
 Object destructor.
void beginOcclusionQuery ()
 Starts the hardware occlusion query.
void endOcclusionQuery ()
 Ends the hardware occlusion test.
bool pullOcclusionQuery (unsigned int *NumOfFragments)
 Pulls the hardware occlusion query.
bool isStillOutstanding (void)
 Lets you know when query is done, or still be processed by the Hardware.
unsigned int getLastQuerysPixelcount () const
 Let's you get the last pixel count with out doing the hardware occlusion test.
void * operator new (size_t sz, const char *file, int line, const char *func)
 operator new, with debug line info
void * operator new (size_t sz)
void * operator new (size_t sz, void *ptr)
 placement operator new
void * operator new[] (size_t sz, const char *file, int line, const char *func)
 array operator new, with debug line info
void * operator new[] (size_t sz)
void operator delete (void *ptr)
void operator delete (void *ptr, void *)
void operator delete (void *ptr, const char *, int, const char *)
void operator delete[] (void *ptr)
void operator delete[] (void *ptr, const char *, int, const char *)

Protected Attributes

unsigned int mPixelCount
bool mIsQueryResultStillOutstanding

Private Attributes

GLuint mQueryID

Detailed Description

This is a class that is the base class of the query class for hardware occlusion.

Author:
Lee Sandberg email: lee@abcmedia.se Updated on 13/9/2005 by Tuan Kuranes email: tuan.kuranes@free.fr

Definition at line 72 of file OgreGLHardwareOcclusionQuery.h.


Constructor & Destructor Documentation

Default object constructor.

Object destructor.


Member Function Documentation

Starts the hardware occlusion query.

Remarks:
Simple usage: Create one or more OcclusionQuery object one per outstanding query or one per tested object OcclusionQuery* mOcclusionQuery; createOcclusionQuery( &mOcclusionQuery ); In the rendering loop: Draw all occluders mOcclusionQuery->startOcclusionQuery(); Draw the polygons to be tested mOcclusionQuery->endOcclusionQuery();

Results must be pulled using: UINT mNumberOfPixelsVisable; pullOcclusionQuery( &mNumberOfPixelsVisable );

Implements Ogre::HardwareOcclusionQuery.

Ends the hardware occlusion test.

Implements Ogre::HardwareOcclusionQuery.

unsigned int Ogre::HardwareOcclusionQuery::getLastQuerysPixelcount ( ) const [inherited]

Let's you get the last pixel count with out doing the hardware occlusion test.

Returns:
The last fragment count from the last test. Remarks This function won't give you new values, just the old value.

Definition at line 109 of file OgreHardwareOcclusionQuery.h.

Lets you know when query is done, or still be processed by the Hardware.

Returns:
true if query isn't finished.

Implements Ogre::HardwareOcclusionQuery.

template<class Alloc >
void Ogre::AllocatedObject< Alloc >::operator delete ( void *  ptr) [inherited]

Definition at line 95 of file OgreMemoryAllocatedObject.h.

template<class Alloc >
void Ogre::AllocatedObject< Alloc >::operator delete ( void *  ptr,
void *   
) [inherited]

Definition at line 101 of file OgreMemoryAllocatedObject.h.

template<class Alloc >
void Ogre::AllocatedObject< Alloc >::operator delete ( void *  ptr,
const char *  ,
int  ,
const char *   
) [inherited]

Definition at line 107 of file OgreMemoryAllocatedObject.h.

template<class Alloc >
void Ogre::AllocatedObject< Alloc >::operator delete[] ( void *  ptr) [inherited]

Definition at line 112 of file OgreMemoryAllocatedObject.h.

template<class Alloc >
void Ogre::AllocatedObject< Alloc >::operator delete[] ( void *  ptr,
const char *  ,
int  ,
const char *   
) [inherited]

Definition at line 118 of file OgreMemoryAllocatedObject.h.

template<class Alloc >
void* Ogre::AllocatedObject< Alloc >::operator new ( size_t  sz,
const char *  file,
int  line,
const char *  func 
) [inherited]

operator new, with debug line info

Definition at line 67 of file OgreMemoryAllocatedObject.h.

template<class Alloc >
void* Ogre::AllocatedObject< Alloc >::operator new ( size_t  sz) [inherited]

Definition at line 72 of file OgreMemoryAllocatedObject.h.

template<class Alloc >
void* Ogre::AllocatedObject< Alloc >::operator new ( size_t  sz,
void *  ptr 
) [inherited]

placement operator new

Definition at line 78 of file OgreMemoryAllocatedObject.h.

template<class Alloc >
void* Ogre::AllocatedObject< Alloc >::operator new[] ( size_t  sz,
const char *  file,
int  line,
const char *  func 
) [inherited]

array operator new, with debug line info

Definition at line 85 of file OgreMemoryAllocatedObject.h.

template<class Alloc >
void* Ogre::AllocatedObject< Alloc >::operator new[] ( size_t  sz) [inherited]

Definition at line 90 of file OgreMemoryAllocatedObject.h.

bool Ogre::GLHardwareOcclusionQuery::pullOcclusionQuery ( unsigned int *  NumOfFragments) [virtual]

Pulls the hardware occlusion query.

Note:
Waits until the query result is available; use isStillOutstanding if just want to test if the result is available.
Return values:
NumOfFragmentswill get the resulting number of fragments.
Returns:
True if success or false if not.

Implements Ogre::HardwareOcclusionQuery.


Member Data Documentation

Definition at line 125 of file OgreHardwareOcclusionQuery.h.

unsigned int Ogre::HardwareOcclusionQuery::mPixelCount [protected, inherited]

Definition at line 102 of file OgreGLHardwareOcclusionQuery.h.


The documentation for this class was generated from the following file:

Copyright © 2012 Torus Knot Software Ltd
Creative Commons License
This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.
Last modified Sun Sep 2 2012 07:27:52