Panda3D
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dxOcclusionQueryContext9.h
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1/**
2 * PANDA 3D SOFTWARE
3 * Copyright (c) Carnegie Mellon University. All rights reserved.
4 *
5 * All use of this software is subject to the terms of the revised BSD
6 * license. You should have received a copy of this license along
7 * with this source code in a file named "LICENSE."
8 *
9 * @file dxOcclusionQueryContext9.h
10 * @author drose
11 * @date 2007-06-04
12 */
13
14#ifndef DXOCCLUSIONQUERYCONTEXT9_H
15#define DXOCCLUSIONQUERYCONTEXT9_H
16
17#include "pandabase.h"
19#include "deletedChain.h"
20
22
23/**
24 *
25 */
26class EXPCL_PANDADX DXOcclusionQueryContext9 : public OcclusionQueryContext {
27public:
28 INLINE DXOcclusionQueryContext9(IDirect3DQuery9 *query);
30 ALLOC_DELETED_CHAIN(DXOcclusionQueryContext9);
31
32 virtual bool is_answer_ready() const;
33 virtual void waiting_for_answer();
34 virtual int get_num_fragments() const;
35
36 IDirect3DQuery9 *_query;
37
38public:
39 static TypeHandle get_class_type() {
40 return _type_handle;
41 }
42 static void init_type() {
43 OcclusionQueryContext::init_type();
44 register_type(_type_handle, "DXOcclusionQueryContext9",
45 OcclusionQueryContext::get_class_type());
46 }
47 virtual TypeHandle get_type() const {
48 return get_class_type();
49 }
50 virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
51
52private:
53 static TypeHandle _type_handle;
54};
55
57
58#endif
Encapsulates all the communication with a particular instance of a given rendering backend.
Returned from a GSG in response to begin_occlusion_query() .
virtual int get_num_fragments() const =0
Returns the number of fragments (pixels) of the specified geometry that passed the depth test.
virtual bool is_answer_ready() const =0
Returns true if the query's answer is ready, false otherwise.
virtual void waiting_for_answer()
Requests the graphics engine to expedite the pending answer–the application is now waiting until the ...
TypeHandle is the identifier used to differentiate C++ class types.
Definition typeHandle.h:81
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
void register_type(TypeHandle &type_handle, const std::string &name)
This inline function is just a convenient way to call TypeRegistry::register_type(),...