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author | Paweł Redman <pawel.redman@gmail.com> | 2017-03-22 17:56:34 +0100 |
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committer | Paweł Redman <pawel.redman@gmail.com> | 2017-03-22 17:56:34 +0100 |
commit | 6a777afc079c2a8d3af3ecd2145fe8dd50567a39 (patch) | |
tree | 520f4489cebf8564ef6cb27064ceea45cbc005b3 /src/tools/asm/mathlib.h |
Diffstat (limited to 'src/tools/asm/mathlib.h')
-rw-r--r-- | src/tools/asm/mathlib.h | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/src/tools/asm/mathlib.h b/src/tools/asm/mathlib.h new file mode 100644 index 0000000..71bbabb --- /dev/null +++ b/src/tools/asm/mathlib.h @@ -0,0 +1,95 @@ +/* +=========================================================================== +Copyright (C) 1999-2005 Id Software, Inc. +Copyright (C) 2000-2006 Tim Angus + +This file is part of Tremulous. + +Tremulous 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. + +Tremulous 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 Tremulous; if not, write to the Free Software +Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +=========================================================================== +*/ +#ifndef __MATHLIB__ +#define __MATHLIB__ + +// mathlib.h + +#include <math.h> + +#ifdef DOUBLEVEC_T +typedef double vec_t; +#else +typedef float vec_t; +#endif +typedef vec_t vec2_t[3]; +typedef vec_t vec3_t[3]; +typedef vec_t vec4_t[4]; + +#define SIDE_FRONT 0 +#define SIDE_ON 2 +#define SIDE_BACK 1 +#define SIDE_CROSS -2 + +#define Q_PI 3.14159265358979323846 +#define DEG2RAD( a ) ( ( (a) * Q_PI ) / 180.0F ) +#define RAD2DEG( a ) ( ( (a) * 180.0f ) / Q_PI ) + +extern vec3_t vec3_origin; + +#define EQUAL_EPSILON 0.001 + +// plane types are used to speed some tests +// 0-2 are axial planes +#define PLANE_X 0 +#define PLANE_Y 1 +#define PLANE_Z 2 +#define PLANE_NON_AXIAL 3 + +qboolean VectorCompare( const vec3_t v1, const vec3_t v2 ); + +#define DotProduct(x,y) (x[0]*y[0]+x[1]*y[1]+x[2]*y[2]) +#define VectorSubtract(a,b,c) {c[0]=a[0]-b[0];c[1]=a[1]-b[1];c[2]=a[2]-b[2];} +#define VectorAdd(a,b,c) {c[0]=a[0]+b[0];c[1]=a[1]+b[1];c[2]=a[2]+b[2];} +#define VectorCopy(a,b) {b[0]=a[0];b[1]=a[1];b[2]=a[2];} +#define VectorScale(a,b,c) {c[0]=b*a[0];c[1]=b*a[1];c[2]=b*a[2];} +#define VectorClear(x) {x[0] = x[1] = x[2] = 0;} +#define VectorNegate(x) {x[0]=-x[0];x[1]=-x[1];x[2]=-x[2];} +void Vec10Copy( vec_t *in, vec_t *out ); + +vec_t Q_rint (vec_t in); +vec_t _DotProduct (vec3_t v1, vec3_t v2); +void _VectorSubtract (vec3_t va, vec3_t vb, vec3_t out); +void _VectorAdd (vec3_t va, vec3_t vb, vec3_t out); +void _VectorCopy (vec3_t in, vec3_t out); +void _VectorScale (vec3_t v, vec_t scale, vec3_t out); + +double VectorLength( const vec3_t v ); + +void VectorMA( const vec3_t va, double scale, const vec3_t vb, vec3_t vc ); + +void CrossProduct( const vec3_t v1, const vec3_t v2, vec3_t cross ); +vec_t VectorNormalize( const vec3_t in, vec3_t out ); +vec_t ColorNormalize( const vec3_t in, vec3_t out ); +void VectorInverse (vec3_t v); + +void ClearBounds (vec3_t mins, vec3_t maxs); +void AddPointToBounds( const vec3_t v, vec3_t mins, vec3_t maxs ); + +qboolean PlaneFromPoints( vec4_t plane, const vec3_t a, const vec3_t b, const vec3_t c ); + +void NormalToLatLong( const vec3_t normal, byte bytes[2] ); + +int PlaneTypeForNormal (vec3_t normal); + +#endif |