58 lines
1.7 KiB
C++
58 lines
1.7 KiB
C++
// Filename: occlusionQueryContext.h
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// Created by: drose (27Mar06)
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//
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////////////////////////////////////////////////////////////////////
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//
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// PANDA 3D SOFTWARE
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// Copyright (c) Carnegie Mellon University. All rights reserved.
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//
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// All use of this software is subject to the terms of the revised BSD
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// license. You should have received a copy of this license along
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// with this source code in a file named "LICENSE."
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//
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////////////////////////////////////////////////////////////////////
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#ifndef OCCLUSIONQUERYCONTEXT_H
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#define OCCLUSIONQUERYCONTEXT_H
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#include "pandabase.h"
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#include "queryContext.h"
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////////////////////////////////////////////////////////////////////
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// Class : OcclusionQueryContext
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// Description : Returned from a GSG in response to
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// begin_occlusion_query() .. end_occlusion_query(),
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// this records the number of fragments (pixels) that
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// passed the depth test between the bracketing calls.
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////////////////////////////////////////////////////////////////////
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class EXPCL_PANDA_GOBJ OcclusionQueryContext : public QueryContext {
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public:
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INLINE OcclusionQueryContext();
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virtual int get_num_fragments() const=0;
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public:
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static TypeHandle get_class_type() {
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return _type_handle;
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}
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static void init_type() {
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QueryContext::init_type();
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register_type(_type_handle, "OcclusionQueryContext",
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QueryContext::get_class_type());
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}
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virtual TypeHandle get_type() const {
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return get_class_type();
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}
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virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
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private:
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static TypeHandle _type_handle;
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friend class PreparedGraphicsObjects;
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};
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#include "occlusionQueryContext.I"
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#endif
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