Added initial Smoothed Particle Hydrodynamics implementation (SPH), for CPU and CUDA.

This software is contributed under the ZLib license by Rama Hoetzlein, http://www.rchoetzlein.com
We plan to integrate the SPH into the core Bullet library, including interaction with rigid bodies and soft bodies.

Extras/sph/common/mdebug.h

@@ -0,0 +1,138 @@
+/*
+  FLUIDS v.1 - SPH Fluid Simulator for CPU and GPU
+  Copyright (C) 2009. Rama Hoetzlein, http://www.rchoetzlein.com
+
+  ZLib license
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+
+#ifndef INC_MINT_DEBUG_H
+	#define INC_MINT_DEBUG_H
+
+	#include <stdio.h>
+	#include <stdlib.h>
+	#include <string>
+	#include <map>
+
+	
+
+	#ifdef BUILD_VS2005
+	 //	#pragma warning( disable : 4101)		// removes warning 4101 - unreferenced local
+	 //	#pragma warning( disable : 4244)		// removes warning 4244 - conversion loss of data
+		#pragma warning( disable : 4995)		// removes warning 4995 - depricated function
+		#pragma warning( disable : 4996)		// removes warning 4996 - depricated function
+	 //	#pragma warning( disable : 4018)		// removes warning 4018 - unsigned/signed
+	#endif
+
+	class CDebug {
+	public:
+		CDebug ();
+		~CDebug ();	
+
+		// Control functions
+		void Start ();
+		void Stop ();	
+		void SendToConsole ( bool tf );
+		void SendToSysbox ( bool tf );
+		void SendToFile ( bool tf );
+		void SendToFile ( char *filename );
+		
+		// Output functions
+		void Exit ( int code );
+		void Print ( std::string subsys, std::string msg );
+		void Print ( std::string msg );
+		void Print ( char* msg);
+		void PrintF ( std::string subsys, char *msg, ... );
+		void Printf ( char *msg, ... );
+		void PrintErr ( std::string errid, std::string subsys, std::string msg, std::string sysbox );	// Used by Error class
+
+		// Filtering functions
+		void AddFilter ( std::string subsys );
+		void ClearFilters ();
+
+	private:
+		bool							m_bStarted;
+		bool							m_bToFile;
+		bool							m_bToCons;
+		bool							m_bToSysbox;		
+		std::string						m_OutName;
+		FILE*							m_OutFile;
+		FILE*							m_OutCons;
+		
+		std::map< std::string, bool >	m_Filters;
+	};	
+
+	class CErrorMsg {		
+		std::string			m_strSubsys;		
+		std::string			m_strFunction;
+		std::string			m_strMessage;
+		std::string			m_strFix;
+		std::string			m_strExtraInfo;
+		bool				m_bFatal;
+		bool				m_bFilter;
+	};
+
+	class CError {
+	public:
+		CError ();
+
+		void Start ();
+		void Start ( char* fname );
+		void LoadErrors ();	
+		void OutputMessage ();
+		void Exit ()	{ Exit (EXIT_SUCCESS); }
+		void Exit ( int code );
+
+		// Unregistered errors		
+		void Print ( std::string subsys, std::string msg );				
+		void Print ( std::string msg );
+		void Print ( char* msg);
+		void PrintF ( std::string subsys, char *msg, ... );				
+
+		// Registered errors		
+		void PrintErr ( std::string err );
+		void PrintErrDX ( std::string err, int result );		// for DirectX errors
+		void PrintErrGL ( std::string err, int result );		// for OpenGL errors
+		void PrintErrW ( std::string err,  int result );		// for Windows errors		
+
+		std::string GetErrorSubsys ()		{ return m_ErrorID; }
+		std::string GetErrorMessage ()		{ return m_ErrorMsg; }
+		std::string GetErrorFunction ()		{ return m_ErrorFunc; }
+		std::string GetErrorFix ()			{ return m_ErrorFix; }
+		std::string GetErrorExtra ()		{ return m_ErrorExtra; }
+	
+	private:	
+
+		bool					m_bStarted;
+
+		std::string				m_ErrorID;			// Current error
+		std::string				m_ErrorSubsys;
+		std::string				m_ErrorMsg;
+		std::string				m_ErrorFunc;
+		std::string				m_ErrorFix;
+		std::string				m_ErrorExtra;		
+		bool					m_bFatal;
+		
+		std::map < std::string, CErrorMsg* >	m_Errors;		// List of registered errors
+	};	
+
+	
+
+	extern CError		error;
+	extern CDebug		debug;
+#endif
+