Panda3D
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posixGraphicsStateGuardian.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 posixGraphicsStateGuardian.h
10 * @author drose
11 * @date 2012-01-14
12 */
13
14#ifndef POSIXGRAPHICSSTATEGUARDIAN_H
15#define POSIXGRAPHICSSTATEGUARDIAN_H
16
17#include "pandabase.h"
18
19#include "glgsg.h"
20
21/**
22 * This GSG is used only for CallbackGraphicsWindow (which might not be using
23 * the glx interfaces), to add the ability to peek in libGL.so to find the
24 * extension functions.
25 */
26class PosixGraphicsStateGuardian : public GLGraphicsStateGuardian {
27public:
30
31protected:
32 virtual void *do_get_extension_func(const char *name);
33 void *get_system_func(const char *name);
34
35private:
36 void *_libgl_handle;
37
38public:
39 static TypeHandle get_class_type() {
40 return _type_handle;
41 }
42 static void init_type() {
43 GLGraphicsStateGuardian::init_type();
44 register_type(_type_handle, "PosixGraphicsStateGuardian",
45 GLGraphicsStateGuardian::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
This class is the main interface to controlling the render process.
An object to create GraphicsOutputs that share a particular 3-D API.
This GSG is used only for CallbackGraphicsWindow (which might not be using the glx interfaces),...
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.
void register_type(TypeHandle &type_handle, const std::string &name)
This inline function is just a convenient way to call TypeRegistry::register_type(),...