Line data Source code
1 :
2 : /* Copyright (c) 2008-2014, Stefan Eilemann <eile@equalizergraphics.com>
3 : * 2011-2012, Daniel Nachbaur <danielnachbaur@gmail.com>
4 : *
5 : * This library is free software; you can redistribute it and/or modify it under
6 : * the terms of the GNU Lesser General Public License version 2.1 as published
7 : * by the Free Software Foundation.
8 : *
9 : * This library is distributed in the hope that it will be useful, but WITHOUT
10 : * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
11 : * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
12 : * details.
13 : *
14 : * You should have received a copy of the GNU Lesser General Public License
15 : * along with this library; if not, write to the Free Software Foundation, Inc.,
16 : * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
17 : */
18 :
19 : #include "view.h"
20 :
21 : #include "config.h"
22 : #include "event.h"
23 : #include "pipe.h"
24 : #include "layout.h"
25 : #include "observer.h"
26 : #include "server.h"
27 :
28 : #include <eq/fabric/commands.h>
29 :
30 : #include <co/dataIStream.h>
31 : #include <co/dataOStream.h>
32 : #include <lunchbox/scopedMutex.h>
33 : #include <lunchbox/spinLock.h>
34 :
35 : namespace eq
36 : {
37 : namespace detail
38 : {
39 128 : class View
40 : {
41 : public:
42 : lunchbox::SpinLock eventLock; //!< event-handling resize synchronizer
43 :
44 : /** Unmodified, baseline view frustum data, used for resizing. */
45 : Frustum baseFrustum;
46 : };
47 : }
48 :
49 : typedef fabric::View< Layout, View, Observer > Super;
50 :
51 64 : View::View( Layout* parent )
52 : : Super( parent )
53 64 : , _impl( new detail::View )
54 128 : , _pipe( 0 )
55 : {
56 64 : }
57 :
58 184 : View::~View()
59 : {
60 64 : delete _impl;
61 120 : }
62 :
63 141 : void View::deserialize( co::DataIStream& is, const uint64_t dirtyBits )
64 : {
65 141 : Super::deserialize( is, dirtyBits );
66 206 : if( _impl->baseFrustum.getCurrentType() == TYPE_NONE &&
67 65 : ( dirtyBits & DIRTY_FRUSTUM ))
68 : {
69 64 : _impl->baseFrustum = *this; // save baseline data for resizing
70 : }
71 141 : }
72 :
73 64 : void View::detach()
74 : {
75 : // if pipe is not running, detach comes from _flushViews in state stopping
76 : // Don't send command to stopping pipe (see issue #11)
77 64 : if( _pipe && _pipe->isRunning( ))
78 : {
79 : // local command dispatching
80 : co::ObjectOCommand( _pipe, getLocalNode(), fabric::CMD_PIPE_DETACH_VIEW,
81 0 : co::COMMANDTYPE_OBJECT, _pipe->getID(),
82 0 : CO_INSTANCE_ALL ) << getID();
83 : }
84 64 : Super::detach();
85 64 : }
86 :
87 14 : Config* View::getConfig()
88 : {
89 14 : Layout* layout = getLayout();
90 14 : if( layout )
91 14 : return layout->getConfig();
92 :
93 0 : if( _pipe )
94 0 : return _pipe->getConfig();
95 :
96 0 : LBUNREACHABLE;
97 0 : return 0;
98 : }
99 :
100 7 : const Config* View::getConfig() const
101 : {
102 7 : const Layout* layout = getLayout();
103 7 : if( layout )
104 7 : return layout->getConfig();
105 :
106 0 : if( _pipe )
107 0 : return _pipe->getConfig();
108 :
109 0 : LBUNREACHABLE;
110 0 : return 0;
111 : }
112 :
113 0 : ServerPtr View::getServer()
114 : {
115 0 : Config* config = getConfig();
116 0 : LBASSERT( config );
117 0 : return ( config ? config->getServer() : 0 );
118 : }
119 :
120 0 : const Frustum& View::getBaseFrustum() const
121 : {
122 0 : return _impl->baseFrustum;
123 : }
124 :
125 0 : bool View::handleEvent( const Event& event )
126 : {
127 0 : switch( event.type )
128 : {
129 : case Event::VIEW_RESIZE:
130 : {
131 0 : const ResizeEvent& resize = event.resize;
132 0 : if( resize.dw == 0.f || resize.dh == 0.f )
133 0 : return true;
134 :
135 0 : switch( getCurrentType( ))
136 : {
137 : case TYPE_WALL:
138 : {
139 0 : const float ratio( resize.dw / resize.dh );
140 0 : Wall wall( _impl->baseFrustum.getWall( ));
141 0 : wall.resizeHorizontal( ratio );
142 :
143 0 : lunchbox::ScopedFastWrite mutex( _impl->eventLock );
144 0 : setWall( wall );
145 0 : break;
146 : }
147 :
148 : case View::TYPE_PROJECTION:
149 : {
150 0 : const float ratio( resize.dw / resize.dh );
151 0 : eq::Projection projection( _impl->baseFrustum.getProjection( ));
152 0 : projection.resizeHorizontal( ratio );
153 :
154 0 : lunchbox::ScopedFastWrite mutex( _impl->eventLock );
155 0 : setProjection( projection );
156 0 : break;
157 : }
158 :
159 : case eq::View::TYPE_NONE:
160 0 : break;
161 : default:
162 0 : LBUNIMPLEMENTED;
163 0 : break;
164 : }
165 0 : return true;
166 : }
167 : }
168 :
169 0 : return false;
170 : }
171 :
172 : }
173 :
174 : #include "../fabric/view.ipp"
175 : template class eq::fabric::View< eq::Layout, eq::View, eq::Observer >;
176 :
177 : /** @cond IGNORE */
178 : template EQFABRIC_API std::ostream& eq::fabric::operator << ( std::ostream&,
179 36 : const eq::Super& );
180 : /** @endcond */
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