wolf3d-ios/wolf3d/code/env/matrix.h

43 lines
1.4 KiB
C

/*
Copyright (C) 2005 Michael Liebscher <johnnycanuck@users.sourceforge.net>
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/*
* matrix.h: Matrix math routines.
*
* Author: Michael Liebscher <johnnycanuck@users.sourceforge.net>
*
*/
#ifndef __MATRIX_H__
#define __MATRIX_H__
#include "vector.h"
typedef float mat3_t[ 9 ]; // 3x3 matrix
typedef float mat4_t[ 16 ]; // 4x4 matrix
extern void Matrix3x3Multiply( mat3_t in1, mat3_t in2, mat3_t out ) ;
extern void MatrixIdentity( mat4_t matrix );
extern void MatrixInvert( mat4_t in, mat4_t out );
extern void VectorMatrixMultiply( vec3_t vecIn, mat4_t m, vec3_t vecOut );
extern void VectorMatrix3x3Multiply( vec3_t vecIn, mat4_t m, vec3_t vecOut );
#endif /* __MATRIX_H__ */