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/* Copyright (c) 2022, NVIDIA CORPORATION. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of NVIDIA CORPORATION nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __BODYSYSTEMCPU_H__
#define __BODYSYSTEMCPU_H__
#include "bodysystem.h"
// CPU Body System
template <typename T>
class BodySystemCPU : public BodySystem<T> {
public:
BodySystemCPU(int numBodies);
virtual ~BodySystemCPU();
virtual void loadTipsyFile(const std::string &filename);
virtual void update(T deltaTime);
virtual void setSoftening(T softening) {
m_softeningSquared = softening * softening;
}
virtual void setDamping(T damping) { m_damping = damping; }
virtual T *getArray(BodyArray array);
virtual void setArray(BodyArray array, const T *data);
virtual unsigned int getCurrentReadBuffer() const { return 0; }
virtual unsigned int getNumBodies() const { return m_numBodies; }
protected: // methods
BodySystemCPU() {} // default constructor
virtual void _initialize(int numBodies);
virtual void _finalize();
void _computeNBodyGravitation();
void _integrateNBodySystem(T deltaTime);
protected: // data
int m_numBodies;
bool m_bInitialized;
T *m_pos;
T *m_vel;
T *m_force;
T m_softeningSquared;
T m_damping;
};
#include "bodysystemcpu_impl.h"
#endif // __BODYSYSTEMCPU_H__
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