82 lines
2.5 KiB
C++
82 lines
2.5 KiB
C++
// Filename: geomContext.h
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// Created by: drose (19Mar04)
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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) 2001 - 2004, Disney Enterprises, Inc. All rights reserved
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//
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// All use of this software is subject to the terms of the Panda 3d
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// Software license. You should have received a copy of this license
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// along with this source code; you will also find a current copy of
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// the license at http://etc.cmu.edu/panda3d/docs/license/ .
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//
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// To contact the maintainers of this program write to
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// panda3d-general@lists.sourceforge.net .
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//
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////////////////////////////////////////////////////////////////////
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#ifndef GEOMCONTEXT_H
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#define GEOMCONTEXT_H
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#include "pandabase.h"
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#include "savedContext.h"
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#include "geom.h"
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////////////////////////////////////////////////////////////////////
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// Class : GeomContext
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// Description : This is a special class object that holds all the
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// information returned by a particular GSG to indicate
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// the geom's internal context identifier.
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//
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// Geoms typically have an immediate-mode and a
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// retained-mode operation. When using geoms in
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// retained-mode (in response to Geom::prepare()),
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// the GSG will create some internal handle for the
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// geom and store it here. The geom stores all of
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// these handles internally.
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//
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// In the case of OpenGL, for example, a GeomContext
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// corresponds to a display list identifier.
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////////////////////////////////////////////////////////////////////
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class EXPCL_PANDA GeomContext : public SavedContext {
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public:
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INLINE GeomContext(Geom *geom);
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// This cannot be a PT(Geom), because the geom and the GSG
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// both own their GeomContexts! That would create a circular
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// reference count.
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Geom *_geom;
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INLINE void mark_dirty(int flags_to_set);
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INLINE void clear_dirty_flags(int flags_to_clear = ~0);
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INLINE int get_dirty_flags() const;
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private:
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int _dirty_flags;
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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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SavedContext::init_type();
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register_type(_type_handle, "GeomContext",
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SavedContext::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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};
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#include "geomContext.I"
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#endif
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