53 lines
2.3 KiB
C
53 lines
2.3 KiB
C
/*
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Copyright (C) 2002-2007 Victor Luchits
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef __R_MATH_H__
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#define __R_MATH_H__
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// r_math.h
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typedef vec_t mat4x4_t[16];
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extern const mat4x4_t mat4x4_identity;
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void Matrix4_Identity( mat4x4_t m );
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void Matrix4_Copy( const mat4x4_t m1, mat4x4_t m2 );
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bool Matrix4_Compare( const mat4x4_t m1, const mat4x4_t m2 );
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void Matrix4_Multiply( const mat4x4_t m1, const mat4x4_t m2, mat4x4_t out );
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void Matrix4_MultiplyFast( const mat4x4_t m1, const mat4x4_t m2, mat4x4_t out );
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void Matrix4_Rotate( mat4x4_t m, vec_t angle, vec_t x, vec_t y, vec_t z );
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void Matrix4_Translate( mat4x4_t m, vec_t x, vec_t y, vec_t z );
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void Matrix4_Scale( mat4x4_t m, vec_t x, vec_t y, vec_t z );
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void Matrix4_Transpose( const mat4x4_t m, mat4x4_t out );
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void Matrix4_Matrix( const mat4x4_t in, vec3_t out[3] );
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void Matrix4_Multiply_Vector( const mat4x4_t m, const vec4_t v, vec4_t out );
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void Matrix_FromQuaternion( const quat_t q, mat4x4_t out );
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void Matrix4_Copy2D( const mat4x4_t m1, mat4x4_t m2 );
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void Matrix4_Multiply2D( const mat4x4_t m1, const mat4x4_t m2, mat4x4_t out );
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void Matrix4_Scale2D( mat4x4_t m, vec_t x, vec_t y );
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void Matrix4_Translate2D( mat4x4_t m, vec_t x, vec_t y );
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void Matrix4_Stretch2D( mat4x4_t m, vec_t s, vec_t t );
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float CalcFov( float fov_x, float width, float height );
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void AdjustFov( float *fov_x, float *fov_y, float width, float height, bool lock_x );
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void PlaneFromPoints( vec3_t verts[3], cplane_t *plane );
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int SignbitsForPlane( const cplane_t *out );
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int PlaneTypeForNormal( const vec3_t normal );
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#endif /*__R_MATH_H__*/
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