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/**
* $Id$
*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
* All rights reserved.
*
* The Original Code is: some of this file.
*
* ***** END GPL LICENSE BLOCK *****
* */
#ifndef BLI_MATH_VECTOR
#define BLI_MATH_VECTOR
#ifdef __cplusplus
extern "C" {
#endif
#include "BLI_math_inline.h"
#ifdef BLI_MATH_INLINE
#include "intern/math_vector_inline.c"
#endif
/************************************* Init ***********************************/
MINLINE void zero_v2(float r[2]);
MINLINE void zero_v3(float r[3]);
MINLINE void zero_v4(float r[4]);
MINLINE void copy_v2_v2(float r[2], const float a[2]);
MINLINE void copy_v3_v3(float r[3], const float a[3]);
MINLINE void copy_v4_v4(float r[4], const float a[4]);
MINLINE void swap_v2_v2(float a[2], float b[2]);
MINLINE void swap_v3_v3(float a[3], float b[3]);
MINLINE void swap_v4_v4(float a[4], float b[4]);
/********************************* Arithmetic ********************************/
MINLINE void add_v2_v2(float r[2], const float a[2]);
MINLINE void add_v2_v2v2(float r[2], const float a[2], const float b[2]);
MINLINE void add_v3_v3(float r[3], const float a[3]);
MINLINE void add_v3_v3v3(float r[3], const float a[3], const float b[3]);
MINLINE void sub_v2_v2(float r[2], const float a[2]);
MINLINE void sub_v2_v2v2(float r[2], const float a[2], const float b[2]);
MINLINE void sub_v3_v3(float r[3], const float a[3]);
MINLINE void sub_v3_v3v3(float r[3], const float a[3], const float b[3]);
MINLINE void mul_v2_fl(float r[2], float f);
MINLINE void mul_v2_v2fl(float r[2], const float a[2], float f);
MINLINE void mul_v3_fl(float r[3], float f);
MINLINE void mul_v3_v3fl(float r[3], const float a[3], float f);
MINLINE void mul_v2_v2(float r[2], const float a[2]);
MINLINE void mul_v3_v3(float r[3], const float a[3]);
MINLINE void mul_v3_v3v3(float r[3], const float a[3], const float b[3]);
MINLINE void mul_v4_fl(float r[4], float f);
MINLINE void madd_v3_v3fl(float r[3], const float a[3], float f);
MINLINE void madd_v3_v3v3(float r[3], const float a[3], const float b[3]);
MINLINE void madd_v2_v2v2fl(float r[2], const float a[2], const float b[2], float f);
MINLINE void madd_v3_v3v3fl(float r[3], const float a[3], const float b[3], float f);
MINLINE void madd_v3_v3v3v3(float r[3], const float a[3], const float b[3], const float c[3]);
MINLINE void madd_v4_v4fl(float r[4], const float a[4], float f);
MINLINE void negate_v3(float r[3]);
MINLINE void negate_v3_v3(float r[3], const float a[3]);
MINLINE float dot_v2v2(const float a[2], const float b[2]);
MINLINE float dot_v3v3(const float a[3], const float b[3]);
MINLINE float cross_v2v2(const float a[2], const float b[2]);
MINLINE void cross_v3_v3v3(float r[3], const float a[3], const float b[3]);
MINLINE void star_m3_v3(float R[3][3],float a[3]);
/*********************************** Length **********************************/
MINLINE float len_v2(const float a[2]);
MINLINE float len_v2v2(const float a[2], const float b[2]);
MINLINE float len_squared_v2v2(const float a[3], const float b[3]);
MINLINE float len_v3(const float a[3]);
MINLINE float len_v3v3(const float a[3], const float b[3]);
MINLINE float len_squared_v3v3(const float a[3], const float b[3]);
MINLINE float normalize_v2(float r[2]);
MINLINE float normalize_v2_v2(float r[2], const float a[2]);
MINLINE float normalize_v3(float r[3]);
MINLINE float normalize_v3_v3(float r[3], const float a[3]);
/******************************* Interpolation *******************************/
void interp_v2_v2v2(float r[2], const float a[2], const float b[2], const float t);
void interp_v2_v2v2v2(float r[2], const float a[2], const float b[2], const float c[3], const float t[3]);
void interp_v3_v3v3(float r[3], const float a[3], const float b[3], const float t);
void interp_v3_v3v3v3(float p[3], const float v1[3], const float v2[3], const float v3[3], const float w[3]);
void interp_v3_v3v3v3v3(float p[3], const float v1[3], const float v2[3], const float v3[3], const float v4[3], const float w[4]);
void interp_v4_v4v4(float r[4], const float a[4], const float b[4], const float t);
void interp_v4_v4v4v4(float p[4], const float v1[4], const float v2[4], const float v3[4], const float w[3]);
void mid_v3_v3v3(float r[3], const float a[3], const float b[3]);
/********************************* Comparison ********************************/
MINLINE int is_zero_v3(float a[3]);
MINLINE int is_one_v3(float a[3]);
MINLINE int equals_v3v3(float a[3], float b[3]);
MINLINE int compare_v3v3(float a[3], float b[3], float limit);
MINLINE int compare_len_v3v3(float a[3], float b[3], float limit);
MINLINE int compare_v4v4(float a[4], float b[4], float limit);
MINLINE int equals_v4v4(float a[4], float b[4]);
/********************************** Angles ***********************************/
/* - angle with 2 arguments is angle between vector */
/* - angle with 3 arguments is angle between 3 points at the middle point */
/* - angle_normalized_* is faster equivalent if vectors are normalized */
float angle_v2v2(const float a[2], const float b[2]);
float angle_v2v2v2(const float a[2], const float b[2], const float c[2]);
float angle_normalized_v2v2(const float a[2], const float b[2]);
float angle_v3v3(const float a[3], const float b[3]);
float angle_v3v3v3(const float a[3], const float b[3], const float c[3]);
float angle_normalized_v3v3(const float v1[3], const float v2[3]);
void angle_tri_v3(float angles[3], const float v1[3], const float v2[3], const float v3[3]);
void angle_quad_v3(float angles[4], const float v1[3], const float v2[3], const float v3[3], const float v4[3]);
/********************************* Geometry **********************************/
void project_v3_v3v3(float r[3], const float p[3], const float n[3]);
void reflect_v3_v3v3(float r[3], const float v[3], const float n[3]);
void ortho_basis_v3v3_v3(float r1[3], float r2[3], const float a[3]);
void bisect_v3_v3v3v3(float r[3], const float a[3], const float b[3], const float c[3]);
void rotate_v3_v3v3fl(float v[3], const float p[3], const float axis[3], const float angle);
void rotate_normalized_v3_v3v3fl(float v[3], const float p[3], const float axis[3], const float angle);
/*********************************** Other ***********************************/
void print_v2(const char *str, const float a[2]);
void print_v3(const char *str, const float a[3]);
void print_v4(const char *str, const float a[4]);
MINLINE void normal_short_to_float_v3(float r[3], const short n[3]);
MINLINE void normal_float_to_short_v3(short r[3], const float n[3]);
void minmax_v3v3_v3(float min[3], float max[3], const float vec[3]);
#ifdef __cplusplus
}
#endif
#endif /* BLI_MATH_VECTOR */
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