reactos/w32api/include/d3dvec.inl

   1 /*
   2  * Copyright (C) 2000 Ove Kaaven
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  */
  18
  19 #ifndef __WINE_D3DVEC_INL
  20 #define __WINE_D3DVEC_INL
  21
  22 /*** constructors ***/
  23
  24 inline _D3DVECTOR::_D3DVECTOR(D3DVALUE f)
  25 {
  26   x = y = z = f;
  27 }
  28
  29 inline _D3DVECTOR::_D3DVECTOR(D3DVALUE _x, D3DVALUE _y, D3DVALUE _z)
  30 {
  31   x = _x; y = _y; z = _z;
  32 }
  33
  34 /*** assignment operators ***/
  35
  36 inline _D3DVECTOR& _D3DVECTOR::operator += (const _D3DVECTOR& v)
  37 {
  38   x += v.x; y += v.y; z += v.z;
  39   return *this;
  40 }
  41
  42 inline _D3DVECTOR& _D3DVECTOR::operator -= (const _D3DVECTOR& v)
  43 {
  44   x -= v.x; y -= v.y; z -= v.z;
  45   return *this;
  46 }
  47
  48 inline _D3DVECTOR& _D3DVECTOR::operator *= (const _D3DVECTOR& v)
  49 {
  50   x *= v.x; y *= v.y; z *= v.z;
  51   return *this;
  52 }
  53
  54 inline _D3DVECTOR& _D3DVECTOR::operator /= (const _D3DVECTOR& v)
  55 {
  56   x /= v.x; y /= v.y; z /= v.z;
  57   return *this;
  58 }
  59
  60 inline _D3DVECTOR& _D3DVECTOR::operator *= (D3DVALUE s)
  61 {
  62   x *= s; y *= s; z *= s;
  63   return *this;
  64 }
  65
  66 inline _D3DVECTOR& _D3DVECTOR::operator /= (D3DVALUE s)
  67 {
  68   x /= s; y /= s; z /= s;
  69   return *this;
  70 }
  71
  72 /*** unary operators ***/
  73
  74 inline _D3DVECTOR operator + (const _D3DVECTOR& v)
  75 {
  76   return v;
  77 }
  78
  79 inline _D3DVECTOR operator - (const _D3DVECTOR& v)
  80 {
  81   return _D3DVECTOR(-v.x, -v.y, -v.z);
  82 }
  83
  84 /*** binary operators ***/
  85
  86 inline _D3DVECTOR operator + (const _D3DVECTOR& v1, const _D3DVECTOR& v2)
  87 {
  88   return _D3DVECTOR(v1.x+v2.x, v1.y+v2.y, v1.z+v2.z);
  89 }
  90
  91 inline _D3DVECTOR operator - (const _D3DVECTOR& v1, const _D3DVECTOR& v2)
  92 {
  93   return _D3DVECTOR(v1.x-v2.x, v1.y-v2.y, v1.z-v2.z);
  94 }
  95
  96 inline _D3DVECTOR operator * (const _D3DVECTOR& v, D3DVALUE s)
  97 {
  98   return _D3DVECTOR(v.x*s, v.y*s, v.z*s);
  99 }
 100
 101 inline _D3DVECTOR operator * (D3DVALUE s, const _D3DVECTOR& v)
 102 {
 103   return _D3DVECTOR(v.x*s, v.y*s, v.z*s);
 104 }
 105
 106 inline _D3DVECTOR operator / (const _D3DVECTOR& v, D3DVALUE s)
 107 {
 108   return _D3DVECTOR(v.x/s, v.y/s, v.z/s);
 109 }
 110
 111 inline D3DVALUE SquareMagnitude(const _D3DVECTOR& v)
 112 {
 113   return v.x*v.x + v.y*v.y + v.z*v.z; /* DotProduct(v, v) */
 114 }
 115
 116 inline D3DVALUE Magnitude(const _D3DVECTOR& v)
 117 {
 118   return sqrt(SquareMagnitude(v));
 119 }
 120
 121 inline _D3DVECTOR Normalize(const _D3DVECTOR& v)
 122 {
 123   return v / Magnitude(v);
 124 }
 125
 126 inline D3DVALUE DotProduct(const _D3DVECTOR& v1, const _D3DVECTOR& v2)
 127 {
 128   return v1.x*v2.x + v1.y*v2.y + v1.z*v2.z;
 129 }
 130
 131 inline _D3DVECTOR CrossProduct(const _D3DVECTOR& v1, const _D3DVECTOR& v2)
 132 {
 133   _D3DVECTOR res;
 134   /* this is a left-handed cross product, right? */
 135   res.x = v1.y * v2.z - v1.z * v2.y;
 136   res.y = v1.z * v2.x - v1.x * v2.z;
 137   res.z = v1.x * v2.y - v1.y * v2.x;
 138   return res;
 139 }
 140
 141 #endif