001/** 002 * 003 * Copyright (c) 2014, the Railo Company Ltd. All rights reserved. 004 * 005 * This library is free software; you can redistribute it and/or 006 * modify it under the terms of the GNU Lesser General Public 007 * License as published by the Free Software Foundation; either 008 * version 2.1 of the License, or (at your option) any later version. 009 * 010 * This library is distributed in the hope that it will be useful, 011 * but WITHOUT ANY WARRANTY; without even the implied warranty of 012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 013 * Lesser General Public License for more details. 014 * 015 * You should have received a copy of the GNU Lesser General Public 016 * License along with this library. If not, see <http://www.gnu.org/licenses/>. 017 * 018 **/ 019/* 020* 021 022Licensed under the Apache License, Version 2.0 (the "License"); 023you may not use this file except in compliance with the License. 024You may obtain a copy of the License at 025 026 http://www.apache.org/licenses/LICENSE-2.0 027 028Unless required by applicable law or agreed to in writing, software 029distributed under the License is distributed on an "AS IS" BASIS, 030WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 031See the License for the specific language governing permissions and 032limitations under the License. 033*/ 034 035package lucee.runtime.img.vecmath; 036 037/** 038 * Vector math package, converted to look similar to javax.vecmath. 039 */ 040public class Tuple4f { 041 public float x, y, z, w; 042 043 public Tuple4f() { 044 this( 0, 0, 0, 0 ); 045 } 046 047 public Tuple4f( float[] x ) { 048 this.x = x[0]; 049 this.y = x[1]; 050 this.z = x[2]; 051 this.w = x[2]; 052 } 053 054 public Tuple4f( float x, float y, float z, float w ) { 055 this.x = x; 056 this.y = y; 057 this.z = z; 058 this.w = w; 059 } 060 061 public Tuple4f( Tuple4f t ) { 062 this.x = t.x; 063 this.y = t.y; 064 this.z = t.z; 065 this.w = t.w; 066 } 067 068 public void absolute() { 069 x = Math.abs(x); 070 y = Math.abs(y); 071 z = Math.abs(z); 072 w = Math.abs(w); 073 } 074 075 public void absolute( Tuple4f t ) { 076 x = Math.abs(t.x); 077 y = Math.abs(t.y); 078 z = Math.abs(t.z); 079 w = Math.abs(t.w); 080 } 081 082 public void clamp( float min, float max ) { 083 if ( x < min ) 084 x = min; 085 else if ( x > max ) 086 x = max; 087 if ( y < min ) 088 y = min; 089 else if ( y > max ) 090 y = max; 091 if ( z < min ) 092 z = min; 093 else if ( z > max ) 094 z = max; 095 if ( w < min ) 096 w = min; 097 else if ( w > max ) 098 w = max; 099 } 100 101 public void set( float x, float y, float z, float w ) { 102 this.x = x; 103 this.y = y; 104 this.z = z; 105 this.w = w; 106 } 107 108 public void set( float[] x ) { 109 this.x = x[0]; 110 this.y = x[1]; 111 this.z = x[2]; 112 this.w = x[2]; 113 } 114 115 public void set( Tuple4f t ) { 116 x = t.x; 117 y = t.y; 118 z = t.z; 119 w = t.w; 120 } 121 122 public void get( Tuple4f t ) { 123 t.x = x; 124 t.y = y; 125 t.z = z; 126 t.w = w; 127 } 128 129 public void get( float[] t ) { 130 t[0] = x; 131 t[1] = y; 132 t[2] = z; 133 t[3] = w; 134 } 135 136 public void negate() { 137 x = -x; 138 y = -y; 139 z = -z; 140 w = -w; 141 } 142 143 public void negate( Tuple4f t ) { 144 x = -t.x; 145 y = -t.y; 146 z = -t.z; 147 w = -t.w; 148 } 149 150 public void interpolate( Tuple4f t, float alpha ) { 151 float a = 1-alpha; 152 x = a*x + alpha*t.x; 153 y = a*y + alpha*t.y; 154 z = a*z + alpha*t.z; 155 w = a*w + alpha*t.w; 156 } 157 158 public void scale( float s ) { 159 x *= s; 160 y *= s; 161 z *= s; 162 w *= s; 163 } 164 165 public void add( Tuple4f t ) { 166 x += t.x; 167 y += t.y; 168 z += t.z; 169 w += t.w; 170 } 171 172 public void add( Tuple4f t1, Tuple4f t2 ) { 173 x = t1.x+t2.x; 174 y = t1.y+t2.y; 175 z = t1.z+t2.z; 176 w = t1.w+t2.w; 177 } 178 179 public void sub( Tuple4f t ) { 180 x -= t.x; 181 y -= t.y; 182 z -= t.z; 183 w -= t.w; 184 } 185 186 public void sub( Tuple4f t1, Tuple4f t2 ) { 187 x = t1.x-t2.x; 188 y = t1.y-t2.y; 189 z = t1.z-t2.z; 190 w = t1.w-t2.w; 191 } 192 193 public String toString() { 194 return "["+x+", "+y+", "+z+", "+w+"]"; 195 } 196 197}