/*
===========================================================================
maya2q3 - export .md3 files from maya
Copyright (C) 2007 HermitWorks Entertainment Corporation

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
===========================================================================
*/

#ifndef INC__math_h_
#define INC__math_h_

#ifdef min
#undef min
#endif

#ifdef max
#undef max
#endif

template< typename T >
inline T min( const T &a, const T &b )
{
	return (a < b) ? a : b;
}

template< typename T >
inline T max( const T &a, const T &b )
{
	return (b < a) ? a : b;
}

template< typename T >
inline T clamp( const T &val, const T &min, const T &max )
{
	if( val < min ) return min;
	if( max < val ) return max;

	return val;
}

template< typename T >
inline T saturate( const T &val )
{
	if( val < 0 ) return 0;
	if( 1 < val ) return 1;

	return val;
}

template< typename T >
inline int sign( const T &val )
{
	if( val < 0 ) return -1;
	if( 0 < val ) return 1;

	return 0;
}

void CalculateEigensystem3x3s(
							  //in, the matrix
							  float m11,
							  float m21, float m22,
							  float m31, float m32, float m33,

							  //out, the eigenvectors (must be float[3])
							  float *er, float *es, float *et,
							  //out, the eigenvalues corresponding to r, s, t (must be float[3])
							  float *el
							  );

#endif