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// This code contains NVIDIA Confidential Information and is disclosed to you
// under a form of NVIDIA software license agreement provided separately to you.
//
// Notice
// NVIDIA Corporation and its licensors retain all intellectual property and
// proprietary rights in and to this software and related documentation and
// any modifications thereto. Any use, reproduction, disclosure, or
// distribution of this software and related documentation without an express
// license agreement from NVIDIA Corporation is strictly prohibited.
//
// ALL NVIDIA DESIGN SPECIFICATIONS, CODE ARE PROVIDED "AS IS.". NVIDIA MAKES
// NO WARRANTIES, EXPRESSED, IMPLIED, STATUTORY, OR OTHERWISE WITH RESPECT TO
// THE MATERIALS, AND EXPRESSLY DISCLAIMS ALL IMPLIED WARRANTIES OF NONINFRINGEMENT,
// MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE.
//
// Information and code furnished is believed to be accurate and reliable.
// However, NVIDIA Corporation assumes no responsibility for the consequences of use of such
// information or for any infringement of patents or other rights of third parties that may
// result from its use. No license is granted by implication or otherwise under any patent
// or patent rights of NVIDIA Corporation. Details are subject to change without notice.
// This code supersedes and replaces all information previously supplied.
// NVIDIA Corporation products are not authorized for use as critical
// components in life support devices or systems without express written approval of
// NVIDIA Corporation.
//
// Copyright (c) 2008-2018 NVIDIA Corporation. All rights reserved.

#ifndef PXFOUNDATION_PXPROFILER_H
#define PXFOUNDATION_PXPROFILER_H

#include "foundation/PxFoundation.h"

namespace physx
{

/**
\brief The pure virtual callback interface for general purpose instrumentation and profiling of GameWorks modules as
well as applications
*/
class PxProfilerCallback
{
protected:
	virtual ~PxProfilerCallback()	{}

public:
	/**************************************************************************************************************************
	Instrumented profiling events
	***************************************************************************************************************************/

	/**
	\brief Mark the beginning of a nested profile block
	\param[in] eventName	Event name. Must be a persistent const char *
	\param[in] detached		True for cross thread events
	\param[in] contextId	the context id of this zone. Zones with the same id belong to the same group. 0 is used for no specific group.
	\return Returns implementation-specific profiler data for this event
	*/
	virtual void* zoneStart(const char* eventName, bool detached, uint64_t contextId) = 0;

	/**
	\brief Mark the end of a nested profile block
	\param[in] profilerData	The data returned by the corresponding zoneStart call (or NULL if not available)
	\param[in] eventName	The name of the zone ending, must match the corresponding name passed with 'zoneStart'. Must be a persistent const char *.
	\param[in] detached		True for cross thread events. Should match the value passed to zoneStart.
	\param[in] contextId	The context of this zone. Should match the value passed to zoneStart.

	\note eventName plus contextId can be used to uniquely match up start and end of a zone.
	*/
	virtual void zoneEnd(void* profilerData, const char* eventName, bool detached, uint64_t contextId) = 0;
};

class PxProfileScoped
{
  public:
	PX_FORCE_INLINE PxProfileScoped(const char* eventName, bool detached, uint64_t contextId) : mCallback(PxGetProfilerCallback()), mProfilerData(NULL)
	{
		if(mCallback)
		{
			mEventName		= eventName;
			mContextId		= contextId;
			mDetached		= detached;
			mProfilerData	= mCallback->zoneStart(eventName, detached, contextId);
		}
	}

	PX_FORCE_INLINE ~PxProfileScoped()
	{
		if(mCallback)
			mCallback->zoneEnd(mProfilerData, mEventName, mDetached, mContextId);
	}
	physx::PxProfilerCallback*	mCallback;
	const char*					mEventName;
	void*						mProfilerData;
	uint64_t					mContextId;
	bool						mDetached;
};

} // end of physx namespace

#if PX_DEBUG || PX_CHECKED || PX_PROFILE
	#define PX_PROFILE_ZONE(x, y)										\
		physx::PxProfileScoped PX_CONCAT(_scoped, __LINE__)(x, false, y)
	#define PX_PROFILE_START_CROSSTHREAD(x, y)							\
		if(PxGetProfilerCallback())										\
			PxGetProfilerCallback()->zoneStart(x, true, y)
	#define PX_PROFILE_STOP_CROSSTHREAD(x, y)							\
		if(PxGetProfilerCallback())										\
			PxGetProfilerCallback()->zoneEnd(NULL, x, true, y)
#else
	#define PX_PROFILE_ZONE(x, y)
	#define PX_PROFILE_START_CROSSTHREAD(x, y)
	#define PX_PROFILE_STOP_CROSSTHREAD(x, y)
#endif

#define PX_PROFILE_POINTER_TO_U64(pointer) static_cast<uint64_t>(reinterpret_cast<size_t>(pointer))

#endif // PXFOUNDATION_PXPROFILER_H