/*
 * Copyright (c) 1992,1993-1995 by Argonaut Technologies Limited. All rights reserved.
 *
 * $Id: vector.h 1.9 1995/06/30 16:09:07 sam Exp $
 * $Locker:  $
 *
 * Vector types
 */

#ifndef _VECTOR_H_
#define _VECTOR_H_

#ifdef __cplusplus
extern "C" {
#endif

/*
 * Vector types
 */
typedef struct br_vector2 {
	br_scalar v[2];
} br_vector2;

typedef struct br_vector3 {
	br_scalar v[3];
} br_vector3;

typedef struct br_vector4 {
	br_scalar v[4];
} br_vector4;

/*
 * Integer vectors (used for integer bounding boxes)
 */
typedef struct br_vector2i {
	br_int_32 v[2];
} br_vector2i;

typedef struct br_vector3i {
	br_int_32 v[3];
} br_vector3i;

typedef struct br_vector4i {
	br_int_32 v[4];
} br_vector4i;

/*
 * Fraction vector types
 */
typedef struct br_fvector2 {
	br_fraction v[2];
} br_fvector2;

typedef struct br_fvector3 {
	br_fraction v[3];
} br_fvector3;

typedef struct br_fvector4 {
	br_fraction v[4];
} br_fvector4;


/*
 * General structures for describing an axis aligned bounds
 */
typedef struct br_bounds2 {
	br_vector2 min;		/* Minimum corner */
	br_vector2 max;		/* Maximum corner */
} br_bounds2;

typedef struct br_bounds3 {
	br_vector3 min;		/* Minimum corner */
	br_vector3 max;		/* Maximum corner */
} br_bounds3;


typedef struct br_bounds4 {
	br_vector4 min;		/* Minimum corner */
	br_vector4 max;		/* Maximum corner */
} br_bounds4;

/*
 * Integer bounding boxes
 */
typedef struct br_bounds2i {
	br_vector2i min;		/* Minimum corner */
	br_vector2i max;		/* Maximum corner */
} br_bounds2i;

typedef struct br_bounds3i {
	br_vector3i min;		/* Minimum corner */
	br_vector3i max;		/* Maximum corner */
} br_bounds3i;


typedef struct br_bounds4i {
	br_vector4i min;		/* Minimum corner */
	br_vector4i max;		/* Maximum corner */
} br_bounds4i;


/*
 * Backwards compatibility
 */
typedef struct br_bounds3 br_bounds;

/*
 * Macros for static initialisation
 */
#define BR_VECTOR2(a,b)      {BR_SCALAR(a),BR_SCALAR(b)}
#define BR_VECTOR3(a,b,c)    {BR_SCALAR(a),BR_SCALAR(b),BR_SCALAR(c)}
#define BR_VECTOR4(a,b,c,d)  {BR_SCALAR(a),BR_SCALAR(b),BR_SCALAR(c),BR_SCALAR(d)}

#define BR_FVECTOR2(a,b)     {BR_FRACTION(a),BR_FRACTION(b)}
#define BR_FVECTOR3(a,b,c)   {BR_FRACTION(a),BR_FRACTION(b),BR_FRACTION(c)}
#define BR_FVECTOR4(a,b,c,d) {BR_FRACTION(a),BR_FRACTION(b),BR_FRACTION(c),BR_FRACTION(d)}


#ifdef __cplusplus
};
#endif
#endif