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#ifndef _NVWAVEWORKS_FFT_SIMULATION_MANAGER_DIRECTCOMPUTE_IMPL_H
#define _NVWAVEWORKS_FFT_SIMULATION_MANAGER_DIRECTCOMPUTE_IMPL_H

#include "FFT_Simulation_Manager.h"
#include "Sim_Array.h"

class NVWaveWorks_FFT_Simulation_DirectCompute_Impl;

class NVWaveWorks_FFT_Simulation_Manager_DirectCompute_Impl : public NVWaveWorks_FFT_Simulation_Manager
{
public:

	NVWaveWorks_FFT_Simulation_Manager_DirectCompute_Impl();
	~NVWaveWorks_FFT_Simulation_Manager_DirectCompute_Impl();

	// Mandatory NVWaveWorks_FFT_Simulation_Manager interface
	NVWaveWorks_FFT_Simulation* createSimulation(const GFSDK_WaveWorks_Detailed_Simulation_Params::Cascade& params);
	void releaseSimulation(NVWaveWorks_FFT_Simulation* pSimulation);

	HRESULT beforeReinit(const GFSDK_WaveWorks_Detailed_Simulation_Params& params, bool reinitOnly);
	HRESULT kick(Graphics_Context* pGC, double dSimTime, gfsdk_U64& kickID);
	bool getStagingCursor(gfsdk_U64* pKickID);
	AdvanceCursorResult advanceStagingCursor(bool block);
	bool getReadbackCursor(gfsdk_U64* pKickID);
	AdvanceCursorResult advanceReadbackCursor(bool block);
	WaitCursorResult waitStagingCursor();
	HRESULT archiveDisplacements();
	HRESULT getTimings(GFSDK_WaveWorks_Simulation_Manager_Timings& timings);

	HRESULT beforeReallocateSimulation();

private:

#if defined(_DEV) || defined(DEBUG)
	void VerifyReadbackLockstep();
#endif

	Sim_Array<NVWaveWorks_FFT_Simulation_DirectCompute_Impl> m_Simulations;

	gfsdk_U64 m_NextKickID;

	bool m_StagingCursorIsValid;
	gfsdk_U64 m_StagingCursorKickID;

	HRESULT checkForReadbackResults();
};

#endif	// _NVWAVEWORKS_FFT_SIMULATION_MANAGER_CUDA_IMPL_H