Jason Sams | 6cc888e | 2011-04-22 17:05:25 -0700 | [diff] [blame] | 1 | /* |
Matthieu Delahaye | 6a5875c | 2013-09-10 15:11:35 -0500 | [diff] [blame] | 2 | * Copyright (C) 2013 The Android Open Source Project |
Jason Sams | 6cc888e | 2011-04-22 17:05:25 -0700 | [diff] [blame] | 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package android.renderscript; |
| 18 | |
Stephen Hines | 9c9ad3f8c2 | 2012-05-07 15:34:29 -0700 | [diff] [blame] | 19 | /** |
Matthieu Delahaye | 6a5875c | 2013-09-10 15:11:35 -0500 | [diff] [blame] | 20 | * Vector version of the basic double type. |
| 21 | * Provides two double fields packed. |
| 22 | */ |
Jason Sams | 6cc888e | 2011-04-22 17:05:25 -0700 | [diff] [blame] | 23 | public class Double2 { |
Matthieu Delahaye | 6a5875c | 2013-09-10 15:11:35 -0500 | [diff] [blame] | 24 | public double x; |
| 25 | public double y; |
| 26 | |
Jason Sams | 6cc888e | 2011-04-22 17:05:25 -0700 | [diff] [blame] | 27 | public Double2() { |
| 28 | } |
| 29 | |
Matthieu Delahaye | 6a5875c | 2013-09-10 15:11:35 -0500 | [diff] [blame] | 30 | /** @hide */ |
| 31 | public Double2(Double2 data) { |
| 32 | this.x = data.x; |
| 33 | this.y = data.y; |
Jason Sams | 6cc888e | 2011-04-22 17:05:25 -0700 | [diff] [blame] | 34 | } |
| 35 | |
Matthieu Delahaye | 6a5875c | 2013-09-10 15:11:35 -0500 | [diff] [blame] | 36 | public Double2(double x, double y) { |
| 37 | this.x = x; |
| 38 | this.y = y; |
| 39 | } |
| 40 | |
| 41 | /** @hide |
| 42 | * Vector add |
| 43 | * |
| 44 | * @param a |
| 45 | * @param b |
| 46 | * @return |
| 47 | */ |
| 48 | public static Double2 add(Double2 a, Double2 b) { |
| 49 | Double2 res = new Double2(); |
| 50 | res.x = a.x + b.x; |
| 51 | res.y = a.y + b.y; |
| 52 | |
| 53 | return res; |
| 54 | } |
| 55 | |
| 56 | /** @hide |
| 57 | * Vector add |
| 58 | * |
| 59 | * @param value |
| 60 | */ |
| 61 | public void add(Double2 value) { |
| 62 | x += value.x; |
| 63 | y += value.y; |
| 64 | } |
| 65 | |
| 66 | /** @hide |
| 67 | * Vector add |
| 68 | * |
| 69 | * @param value |
| 70 | */ |
| 71 | public void add(double value) { |
| 72 | x += value; |
| 73 | y += value; |
| 74 | } |
| 75 | |
| 76 | /** @hide |
| 77 | * Vector add |
| 78 | * |
| 79 | * @param a |
| 80 | * @param b |
| 81 | * @return |
| 82 | */ |
| 83 | public static Double2 add(Double2 a, double b) { |
| 84 | Double2 res = new Double2(); |
| 85 | res.x = a.x + b; |
| 86 | res.y = a.y + b; |
| 87 | |
| 88 | return res; |
| 89 | } |
| 90 | |
| 91 | /** @hide |
| 92 | * Vector subtraction |
| 93 | * |
| 94 | * @param value |
| 95 | */ |
| 96 | public void sub(Double2 value) { |
| 97 | x -= value.x; |
| 98 | y -= value.y; |
| 99 | } |
| 100 | |
| 101 | /** @hide |
| 102 | * Vector subtraction |
| 103 | * |
| 104 | * @param a |
| 105 | * @param b |
| 106 | * @return |
| 107 | */ |
| 108 | public static Double2 sub(Double2 a, Double2 b) { |
| 109 | Double2 res = new Double2(); |
| 110 | res.x = a.x - b.x; |
| 111 | res.y = a.y - b.y; |
| 112 | |
| 113 | return res; |
| 114 | } |
| 115 | |
| 116 | /** @hide |
| 117 | * Vector subtraction |
| 118 | * |
| 119 | * @param value |
| 120 | */ |
| 121 | public void sub(double value) { |
| 122 | x -= value; |
| 123 | y -= value; |
| 124 | } |
| 125 | |
| 126 | /** @hide |
| 127 | * Vector subtraction |
| 128 | * |
| 129 | * @param a |
| 130 | * @param b |
| 131 | * @return |
| 132 | */ |
| 133 | public static Double2 sub(Double2 a, double b) { |
| 134 | Double2 res = new Double2(); |
| 135 | res.x = a.x - b; |
| 136 | res.y = a.y - b; |
| 137 | |
| 138 | return res; |
| 139 | } |
| 140 | |
| 141 | /** @hide |
| 142 | * Vector multiplication |
| 143 | * |
| 144 | * @param value |
| 145 | */ |
| 146 | public void mul(Double2 value) { |
| 147 | x *= value.x; |
| 148 | y *= value.y; |
| 149 | } |
| 150 | |
| 151 | /** @hide |
| 152 | * Vector multiplication |
| 153 | * |
| 154 | * @param a |
| 155 | * @param b |
| 156 | * @return |
| 157 | */ |
| 158 | public static Double2 mul(Double2 a, Double2 b) { |
| 159 | Double2 res = new Double2(); |
| 160 | res.x = a.x * b.x; |
| 161 | res.y = a.y * b.y; |
| 162 | |
| 163 | return res; |
| 164 | } |
| 165 | |
| 166 | /** @hide |
| 167 | * Vector multiplication |
| 168 | * |
| 169 | * @param value |
| 170 | */ |
| 171 | public void mul(double value) { |
| 172 | x *= value; |
| 173 | y *= value; |
| 174 | } |
| 175 | |
| 176 | /** @hide |
| 177 | * Vector multiplication |
| 178 | * |
| 179 | * @param a |
| 180 | * @param b |
| 181 | * @return |
| 182 | */ |
| 183 | public static Double2 mul(Double2 a, double b) { |
| 184 | Double2 res = new Double2(); |
| 185 | res.x = a.x * b; |
| 186 | res.y = a.y * b; |
| 187 | |
| 188 | return res; |
| 189 | } |
| 190 | |
| 191 | /** @hide |
| 192 | * Vector division |
| 193 | * |
| 194 | * @param value |
| 195 | */ |
| 196 | public void div(Double2 value) { |
| 197 | x /= value.x; |
| 198 | y /= value.y; |
| 199 | } |
| 200 | |
| 201 | /** @hide |
| 202 | * Vector division |
| 203 | * |
| 204 | * @param a |
| 205 | * @param b |
| 206 | * @return |
| 207 | */ |
| 208 | public static Double2 div(Double2 a, Double2 b) { |
| 209 | Double2 res = new Double2(); |
| 210 | res.x = a.x / b.x; |
| 211 | res.y = a.y / b.y; |
| 212 | |
| 213 | return res; |
| 214 | } |
| 215 | |
| 216 | /** @hide |
| 217 | * Vector division |
| 218 | * |
| 219 | * @param value |
| 220 | */ |
| 221 | public void div(double value) { |
| 222 | x /= value; |
| 223 | y /= value; |
| 224 | } |
| 225 | |
| 226 | /** @hide |
| 227 | * Vector division |
| 228 | * |
| 229 | * @param a |
| 230 | * @param b |
| 231 | * @return |
| 232 | */ |
| 233 | public static Double2 div(Double2 a, double b) { |
| 234 | Double2 res = new Double2(); |
| 235 | res.x = a.x / b; |
| 236 | res.y = a.y / b; |
| 237 | |
| 238 | return res; |
| 239 | } |
| 240 | |
| 241 | /** @hide |
| 242 | * Vector dot Product |
| 243 | * |
| 244 | * @param a |
| 245 | * @return |
| 246 | */ |
| 247 | public double dotProduct(Double2 a) { |
| 248 | return (x * a.x) + (y * a.y); |
| 249 | } |
| 250 | |
| 251 | /** @hide |
| 252 | * Vector dot Product |
| 253 | * |
| 254 | * @param a |
| 255 | * @param b |
| 256 | * @return |
| 257 | */ |
| 258 | public static Double dotProduct(Double2 a, Double2 b) { |
| 259 | return (b.x * a.x) + (b.y * a.y); |
| 260 | } |
| 261 | |
| 262 | /** @hide |
| 263 | * Vector add Multiple |
| 264 | * |
| 265 | * @param a |
| 266 | * @param factor |
| 267 | */ |
| 268 | public void addMultiple(Double2 a, double factor) { |
| 269 | x += a.x * factor; |
| 270 | y += a.y * factor; |
| 271 | } |
| 272 | |
| 273 | /** @hide |
| 274 | * Set vector value by double2 |
| 275 | * |
| 276 | * @param a |
| 277 | */ |
| 278 | public void set(Double2 a) { |
| 279 | this.x = a.x; |
| 280 | this.y = a.y; |
| 281 | } |
| 282 | |
| 283 | /** @hide |
| 284 | * Set vector negate |
| 285 | */ |
| 286 | public void negate() { |
| 287 | x = -x; |
| 288 | y = -y; |
| 289 | } |
| 290 | |
| 291 | /** @hide |
| 292 | * Get vector length |
| 293 | * |
| 294 | * @return |
| 295 | */ |
| 296 | public int length() { |
| 297 | return 2; |
| 298 | } |
| 299 | |
| 300 | /** @hide |
| 301 | * Return the element sum of vector |
| 302 | * |
| 303 | * @return |
| 304 | */ |
| 305 | public double elementSum() { |
| 306 | return x + y; |
| 307 | } |
| 308 | |
| 309 | /** @hide |
| 310 | * Get the vector field value by index |
| 311 | * |
| 312 | * @param i |
| 313 | * @return |
| 314 | */ |
| 315 | public double get(int i) { |
| 316 | switch (i) { |
| 317 | case 0: |
| 318 | return x; |
| 319 | case 1: |
| 320 | return y; |
| 321 | default: |
| 322 | throw new IndexOutOfBoundsException("Index: i"); |
| 323 | } |
| 324 | } |
| 325 | |
| 326 | /** @hide |
| 327 | * Set the vector field value by index |
| 328 | * |
| 329 | * @param i |
| 330 | * @param value |
| 331 | */ |
| 332 | public void setAt(int i, double value) { |
| 333 | switch (i) { |
| 334 | case 0: |
| 335 | x = value; |
| 336 | return; |
| 337 | case 1: |
| 338 | y = value; |
| 339 | return; |
| 340 | default: |
| 341 | throw new IndexOutOfBoundsException("Index: i"); |
| 342 | } |
| 343 | } |
| 344 | |
| 345 | /** @hide |
| 346 | * Add the vector field value by index |
| 347 | * |
| 348 | * @param i |
| 349 | * @param value |
| 350 | */ |
| 351 | public void addAt(int i, double value) { |
| 352 | switch (i) { |
| 353 | case 0: |
| 354 | x += value; |
| 355 | return; |
| 356 | case 1: |
| 357 | y += value; |
| 358 | return; |
| 359 | default: |
| 360 | throw new IndexOutOfBoundsException("Index: i"); |
| 361 | } |
| 362 | } |
| 363 | |
| 364 | /** @hide |
| 365 | * Set the vector field value |
| 366 | * |
| 367 | * @param x |
| 368 | * @param y |
| 369 | */ |
| 370 | public void setValues(double x, double y) { |
| 371 | this.x = x; |
| 372 | this.y = y; |
| 373 | } |
| 374 | |
| 375 | /** @hide |
| 376 | * Copy the vector to double array |
| 377 | * |
| 378 | * @param data |
| 379 | * @param offset |
| 380 | */ |
| 381 | public void copyTo(double[] data, int offset) { |
| 382 | data[offset] = x; |
| 383 | data[offset + 1] = y; |
| 384 | } |
Jason Sams | 6cc888e | 2011-04-22 17:05:25 -0700 | [diff] [blame] | 385 | } |