Equalizer  1.4.1
controller.h
00001 
00002 /*
00003  * Copyright (c) 2009, Philippe Robert <philippe.robert@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 EQNBODY_NBODYSYSTEM_H
00031 #define EQNBODY_NBODYSYSTEM_H
00032 
00033 #include <driver_types.h>
00034 
00035 #include "render_particles.h"
00036 #include "sharedDataProxy.h"
00037 
00038 namespace eqNbody
00039 {
00040     class InitData;
00041     
00042     enum BodyArray 
00043     {
00044         BODYSYSTEM_POSITION,
00045         BODYSYSTEM_VELOCITY,
00046     };
00047         
00048     class Controller
00049     {
00050     public:
00051         Controller( const GLEWContext* const glewContext );
00052         bool init( const InitData& initData, float* hPos = NULL, 
00053                    bool usePBO=true );
00054         bool exit();
00055 
00056         void compute( const float timeStep, const eq::Range& range );
00057         void draw( float* pos, float* col );
00058 
00059         void setSoftening( float softening );
00060         
00061         void getArray( BodyArray array, SharedDataProxy& proxy );
00062         void setArray( BodyArray array, const float* pos, unsigned int numBytes );
00063 
00064         const GLEWContext* glewGetContext() const { return _glewContext; }
00065 
00066     private:
00067         ParticleRenderer _renderer;
00068         const GLEWContext* _glewContext;
00069 
00070         unsigned int _numBodies;
00071         unsigned int _p;
00072         unsigned int _q;
00073         float        _damping;
00074         bool         _usePBO;
00075 
00076         float*       _dPos[2];      // position data on the GPU
00077         float*       _dVel[2];      // velocity data on the GPU
00078                                         
00079         unsigned int _pbo[2];       // buffers
00080         unsigned int _currentRead;  // current read buffer
00081         unsigned int _currentWrite; // current write buffer
00082         float        _pointSize;
00083     };
00084 }
00085 
00086 #endif // EQNBODY_NBODYSYSTEM_H
Generated on Mon Nov 26 2012 14:41:48 for Equalizer 1.4.1 by  doxygen 1.7.6.1