Equalizer 1.0

share/Equalizer/examples/eqPly/channel.h

00001 
00002 /* Copyright (c) 2006-2011, Stefan Eilemann <eile@equalizergraphics.com>
00003  * Copyright (c) 2010, Cedric Stalder <cedric.stalder@gmail.com>
00004  *
00005  * Redistribution and use in source and binary forms, with or without
00006  * modification, are permitted provided that the following conditions are met:
00007  *
00008  * - Redistributions of source code must retain the above copyright notice, this
00009  *   list of conditions and the following disclaimer.
00010  * - Redistributions in binary form must reproduce the above copyright notice,
00011  *   this list of conditions and the following disclaimer in the documentation
00012  *   and/or other materials provided with the distribution.
00013  * - Neither the name of Eyescale Software GmbH nor the names of its
00014  *   contributors may be used to endorse or promote products derived from this
00015  *   software without specific prior written permission.
00016  *
00017  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
00018  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00019  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00020  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
00021  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
00022  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
00023  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
00024  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
00025  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
00026  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
00027  * POSSIBILITY OF SUCH DAMAGE.
00028  */
00029 
00030 #ifndef EQ_PLY_CHANNEL_H
00031 #define EQ_PLY_CHANNEL_H
00032 
00033 #include "eqPly.h"
00034 
00035 #include "typedefs.h"
00036 
00037 #include <eq/eq.h>
00038 
00039 
00040 namespace eqPly
00041 {
00042     class FrameData;
00043     class InitData;
00044 
00048     class Channel : public eq::Channel
00049     {
00050     public:
00051         Channel( eq::Window* parent );
00052 
00053         bool stopRendering() const;
00054 
00055     protected:
00056         virtual ~Channel() {}
00057 
00058         virtual bool configInit( const eq::uint128_t& initID );
00059         virtual bool configExit();
00060         virtual void frameClear( const eq::uint128_t& frameID );
00061         virtual void frameDraw( const eq::uint128_t& frameID );
00062         virtual void frameAssemble( const eq::uint128_t& frameID );
00063         virtual void frameReadback( const eq::uint128_t& frameID );
00064         virtual void frameStart( const eq::uint128_t& frameID,
00065                                  const uint32_t frameNumber );
00066         virtual void frameFinish( const eq::uint128_t& frameID,
00067                                   const uint32_t frameNumber );
00068         virtual void frameViewStart( const eq::uint128_t& frameID );
00069         virtual void frameViewFinish( const eq::uint128_t& frameID );
00070 
00071         virtual bool useOrtho() const;
00072         virtual eq::Vector2f getJitter() const;
00073 
00074         virtual void notifyStopFrame( const uint32_t lastFrameNumber )
00075             { _frameRestart = lastFrameNumber + 1; }
00076 
00077     private:
00078         void _drawModel( const Model* model );
00079         void _drawOverlay();
00080         void _drawHelp();
00081         void _updateNearFar( const mesh::BoundingSphere& boundingSphere );
00082         void _initFrustum( eq::FrustumCullerf& frustum, 
00083                            const mesh::BoundingSphere& boundingSphere );
00084 
00085         bool _isDone() const;
00086 
00087         void _initJitter();
00088         bool _initAccum();
00089 
00091         eq::Vector2i _getJitterStep() const;
00092 
00093         const FrameData& _getFrameData() const;
00094         const Model*     _getModel();
00095 
00096         const Model* _model;
00097         eq::uint128_t _modelID;
00098         uint32_t _frameRestart;
00099 
00100         struct Accum
00101         {
00102             Accum() : buffer( 0 ), step( 0 ), stepsDone( 0 ), transfer( false )
00103                 {}
00104 
00105             eq::util::Accum* buffer;
00106             int32_t step;
00107             uint32_t stepsDone;
00108             bool transfer;
00109         }
00110         _accum[ eq::NUM_EYES ];
00111 
00112         eq::PixelViewport _currentPVP;
00113     };
00114 }
00115 
00116 
00117 
00118 #endif // EQ_PLY_CHANNEL_H
00119 
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