55 lines
1.3 KiB
C++
55 lines
1.3 KiB
C++
/*
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Copyright (C) 2007 Peter Mackay and Chris Swindle.
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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 QUAKE_MATH_HPP
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#define QUAKE_MATH_HPP
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#include <math.h>
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#include <psptypes.h>
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#ifdef PSP_VFPU
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#include <pspmath.h>
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#endif
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namespace quake
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{
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namespace math
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{
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static inline float dot(const ScePspFVector4& a, const ScePspFVector4& b)
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{
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return (a.x * b.x) + (a.y * b.y) + (a.z * b.z);
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}
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static inline void normalise(ScePspFVector4* v)
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{
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const float scale = 1.0f / sqrtf(dot(*v, *v));
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v->x *= scale;
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v->y *= scale;
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v->z *= scale;
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v->w *= scale;
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}
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void multiply(const ScePspFMatrix4& a, const ScePspFMatrix4& b, ScePspFMatrix4* out);
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}
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}
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#endif
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