openscenegraph
RenderInfo
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1/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
2 *
3 * This library is open source and may be redistributed and/or modified under
4 * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
5 * (at your option) any later version. The full license is in LICENSE file
6 * included with this distribution, and on the openscenegraph.org website.
7 *
8 * This library is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * OpenSceneGraph Public License for more details.
12*/
13
14#ifndef OSG_RENDERINFO
15#define OSG_RENDERINFO 1
16
17#include <osg/State>
18#include <osg/View>
19
20namespace osgUtil {
21// forward declare RenderBin so we can refer to it in RenderInfo
22class RenderBin;
23}
24
25namespace osg {
26
27class RenderInfo
28{
29public:
30
31 RenderInfo():
32 _view(0) {}
33
34 RenderInfo(const RenderInfo& rhs):
35 _state(rhs._state),
36 _view(rhs._view),
37 _cameraStack(rhs._cameraStack),
38 _renderBinStack(rhs._renderBinStack),
39 _userData(rhs._userData) {}
40
41 RenderInfo(State* state, View* view):
42 _state(state),
43 _view(view) {}
44
45 RenderInfo& operator = (const RenderInfo& rhs)
46 {
47 _state = rhs._state;
48 _view = rhs._view;
49 _cameraStack = rhs._cameraStack;
50 _renderBinStack = rhs._renderBinStack;
51 _userData = rhs._userData;
52 return *this;
53 }
54
55 unsigned int getContextID() const { return _state.valid() ? _state->getContextID() : 0; }
56
57 void setState(State* state) { _state = state; }
58 State* getState() { return _state.get(); }
59 const State* getState() const { return _state.get(); }
60
61 void setView(View* view) { _view = view; }
62 View* getView() { return _view; }
63 const View* getView() const { return _view; }
64
65 void pushCamera(Camera* camera) { _cameraStack.push_back(camera); }
66 void popCamera() { if (!_cameraStack.empty()) _cameraStack.pop_back(); }
67
68 typedef std::vector<Camera*> CameraStack;
69 CameraStack& getCameraStack() { return _cameraStack; }
70
71 Camera* getCurrentCamera() { return _cameraStack.empty() ? 0 : _cameraStack.back(); }
72
73 void pushRenderBin(osgUtil::RenderBin* bin) { _renderBinStack.push_back(bin); }
74 void popRenderBin() { _renderBinStack.pop_back(); }
75
76 typedef std::vector<osgUtil::RenderBin*> RenderBinStack;
77 RenderBinStack& getRenderBinStack() { return _renderBinStack; }
78
79 void setUserData(Referenced* userData) { _userData = userData; }
80 Referenced* getUserData() { return _userData.get(); }
81 const Referenced* getUserData() const { return _userData.get(); }
82
83protected:
84
85
86 ref_ptr<State> _state;
87 View* _view;
88 CameraStack _cameraStack;
89 RenderBinStack _renderBinStack;
90 ref_ptr<Referenced> _userData;
91};
92
93}
94
95#endif