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panda
src
gobj
geomContext.h
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// 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) 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 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_GOBJ
GeomContext
:
public
SavedContext
{
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public
:
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INLINE
GeomContext
(
Geom
*geom);
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PUBLISHED:
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INLINE
Geom
*get_geom()
const
;
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public
:
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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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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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GeomContext
This is a special class object that holds all the information returned by a particular GSG to indicat...
Definition:
geomContext.h:39
Geom
A container for geometry primitives.
Definition:
geom.h:58
TypeHandle
TypeHandle is the identifier used to differentiate C++ class types.
Definition:
typeHandle.h:85
SavedContext
This is the base class for all GSG-specific context objects, such as TextureContext and GeomContext...
Definition:
savedContext.h:29
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