54 lines
1.3 KiB
C
54 lines
1.3 KiB
C
|
/**
|
||
|
|
* PANDA 3D SOFTWARE
|
||
|
|
* Copyright (c) Carnegie Mellon University. All rights reserved.
|
||
|
|
*
|
||
|
|
* All use of this software is subject to the terms of the revised BSD
|
||
|
|
* license. You should have received a copy of this license along
|
||
|
|
* with this source code in a file named "LICENSE."
|
||
|
|
*
|
||
|
|
* @file occlusionQueryContext.h
|
||
|
|
* @author drose
|
||
|
|
* @date 2006-03-27
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef OCCLUSIONQUERYCONTEXT_H
|
||
|
|
#define OCCLUSIONQUERYCONTEXT_H
|
||
|
|
|
||
|
|
#include "pandabase.h"
|
||
|
|
#include "queryContext.h"
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returned from a GSG in response to begin_occlusion_query() ..
|
||
|
|
* end_occlusion_query(), this records the number of fragments (pixels) that
|
||
|
|
* passed the depth test between the bracketing calls.
|
||
|
|
*/
|
||
|
|
class EXPCL_PANDA_GOBJ OcclusionQueryContext : public QueryContext {
|
||
|
|
public:
|
||
|
|
INLINE OcclusionQueryContext();
|
||
|
|
|
||
|
|
virtual int get_num_fragments() const=0;
|
||
|
|
|
||
|
|
public:
|
||
|
|
static TypeHandle get_class_type() {
|
||
|
|
return _type_handle;
|
||
|
|
}
|
||
|
|
static void init_type() {
|
||
|
|
QueryContext::init_type();
|
||
|
|
register_type(_type_handle, "OcclusionQueryContext",
|
||
|
|
QueryContext::get_class_type());
|
||
|
|
}
|
||
|
|
virtual TypeHandle get_type() const {
|
||
|
|
return get_class_type();
|
||
|
|
}
|
||
|
|
virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
|
||
|
|
|
||
|
|
private:
|
||
|
|
static TypeHandle _type_handle;
|
||
|
|
|
||
|
|
friend class PreparedGraphicsObjects;
|
||
|
|
};
|
||
|
|
|
||
|
|
#include "occlusionQueryContext.I"
|
||
|
|
|
||
|
|
#endif
|