The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2007 The Android Open Source Project |
| 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 com.android.server; |
| 18 | |
| 19 | import android.util.Log; |
| 20 | import android.view.Display; |
| 21 | import android.view.MotionEvent; |
| 22 | import android.view.Surface; |
| 23 | import android.view.WindowManagerPolicy; |
| 24 | |
| 25 | public class InputDevice { |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame^] | 26 | static final boolean DEBUG_POINTERS = false; |
| 27 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 28 | /** Amount that trackball needs to move in order to generate a key event. */ |
| 29 | static final int TRACKBALL_MOVEMENT_THRESHOLD = 6; |
| 30 | |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 31 | /** Maximum number of pointers we will track and report. */ |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame^] | 32 | static final int MAX_POINTERS = 10; |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 33 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 34 | final int id; |
| 35 | final int classes; |
| 36 | final String name; |
| 37 | final AbsoluteInfo absX; |
| 38 | final AbsoluteInfo absY; |
| 39 | final AbsoluteInfo absPressure; |
| 40 | final AbsoluteInfo absSize; |
| 41 | |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 42 | long mKeyDownTime = 0; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 43 | int mMetaKeysState = 0; |
| 44 | |
| 45 | final MotionState mAbs = new MotionState(0, 0); |
| 46 | final MotionState mRel = new MotionState(TRACKBALL_MOVEMENT_THRESHOLD, |
| 47 | TRACKBALL_MOVEMENT_THRESHOLD); |
| 48 | |
| 49 | static class MotionState { |
| 50 | int xPrecision; |
| 51 | int yPrecision; |
| 52 | float xMoveScale; |
| 53 | float yMoveScale; |
| 54 | MotionEvent currentMove = null; |
| 55 | boolean changed = false; |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 56 | long mDownTime = 0; |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame^] | 57 | |
| 58 | // The currently assigned pointer IDs, corresponding to the last data. |
| 59 | int[] mPointerIds = new int[MAX_POINTERS]; |
| 60 | |
| 61 | // This is the last generated pointer data, ordered to match |
| 62 | // mPointerIds. |
| 63 | int mLastNumPointers = 0; |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 64 | final int[] mLastData = new int[MotionEvent.NUM_SAMPLE_DATA * MAX_POINTERS]; |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame^] | 65 | |
| 66 | // This is the next set of pointer data being generated. It is not |
| 67 | // in any known order, and will be propagated in to mLastData |
| 68 | // as part of mapping it to the appropriate pointer IDs. |
| 69 | // Note that we have one extra sample of data here, to help clients |
| 70 | // avoid doing bounds checking. |
| 71 | int mNextNumPointers = 0; |
| 72 | final int[] mNextData = new int[(MotionEvent.NUM_SAMPLE_DATA * MAX_POINTERS) |
| 73 | + MotionEvent.NUM_SAMPLE_DATA]; |
| 74 | |
| 75 | // Temporary data structures for doing the pointer ID mapping. |
| 76 | final int[] mLast2Next = new int[MAX_POINTERS]; |
| 77 | final int[] mNext2Last = new int[MAX_POINTERS]; |
| 78 | final long[] mNext2LastDistance = new long[MAX_POINTERS]; |
| 79 | |
| 80 | // Temporary data structure for generating the final motion data. |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 81 | final float[] mReportData = new float[MotionEvent.NUM_SAMPLE_DATA * MAX_POINTERS]; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 82 | |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame^] | 83 | // This is not used here, but can be used by callers for state tracking. |
| 84 | int mAddingPointerOffset = 0; |
| 85 | final boolean[] mDown = new boolean[MAX_POINTERS]; |
| 86 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 87 | MotionState(int mx, int my) { |
| 88 | xPrecision = mx; |
| 89 | yPrecision = my; |
| 90 | xMoveScale = mx != 0 ? (1.0f/mx) : 1.0f; |
| 91 | yMoveScale = my != 0 ? (1.0f/my) : 1.0f; |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame^] | 92 | for (int i=0; i<MAX_POINTERS; i++) { |
| 93 | mPointerIds[i] = i; |
| 94 | } |
| 95 | } |
| 96 | |
| 97 | private boolean assignPointer(int nextIndex, boolean allowOverlap) { |
| 98 | final int lastNumPointers = mLastNumPointers; |
| 99 | final int[] next2Last = mNext2Last; |
| 100 | final long[] next2LastDistance = mNext2LastDistance; |
| 101 | final int[] last2Next = mLast2Next; |
| 102 | final int[] lastData = mLastData; |
| 103 | final int[] nextData = mNextData; |
| 104 | final int id = nextIndex * MotionEvent.NUM_SAMPLE_DATA; |
| 105 | |
| 106 | if (DEBUG_POINTERS) Log.v("InputDevice", "assignPointer: nextIndex=" |
| 107 | + nextIndex + " dataOff=" + id); |
| 108 | final int x1 = nextData[id + MotionEvent.SAMPLE_X]; |
| 109 | final int y1 = nextData[id + MotionEvent.SAMPLE_Y]; |
| 110 | |
| 111 | long bestDistance = -1; |
| 112 | int bestIndex = -1; |
| 113 | for (int j=0; j<lastNumPointers; j++) { |
| 114 | if (!allowOverlap && last2Next[j] < 0) { |
| 115 | continue; |
| 116 | } |
| 117 | final int jd = j * MotionEvent.NUM_SAMPLE_DATA; |
| 118 | final int xd = lastData[jd + MotionEvent.SAMPLE_X] - x1; |
| 119 | final int yd = lastData[jd + MotionEvent.SAMPLE_Y] - y1; |
| 120 | final long distance = xd*(long)xd + yd*(long)yd; |
| 121 | if (j == 0 || distance < bestDistance) { |
| 122 | bestDistance = distance; |
| 123 | bestIndex = j; |
| 124 | } |
| 125 | } |
| 126 | |
| 127 | if (DEBUG_POINTERS) Log.v("InputDevice", "New index " + nextIndex |
| 128 | + " best old index=" + bestIndex + " (distance=" |
| 129 | + bestDistance + ")"); |
| 130 | next2Last[nextIndex] = bestIndex; |
| 131 | next2LastDistance[nextIndex] = bestDistance; |
| 132 | |
| 133 | if (bestIndex < 0) { |
| 134 | return true; |
| 135 | } |
| 136 | |
| 137 | if (last2Next[bestIndex] == -1) { |
| 138 | last2Next[bestIndex] = nextIndex; |
| 139 | return false; |
| 140 | } |
| 141 | |
| 142 | if (DEBUG_POINTERS) Log.v("InputDevice", "Old index " + bestIndex |
| 143 | + " has multiple best new pointers!"); |
| 144 | |
| 145 | last2Next[bestIndex] = -2; |
| 146 | return true; |
| 147 | } |
| 148 | |
| 149 | private int updatePointerIdentifiers() { |
| 150 | final int[] lastData = mLastData; |
| 151 | final int[] nextData = mNextData; |
| 152 | final int nextNumPointers = mNextNumPointers; |
| 153 | final int lastNumPointers = mLastNumPointers; |
| 154 | |
| 155 | if (nextNumPointers == 1 && lastNumPointers == 1) { |
| 156 | System.arraycopy(nextData, 0, lastData, 0, |
| 157 | MotionEvent.NUM_SAMPLE_DATA); |
| 158 | return -1; |
| 159 | } |
| 160 | |
| 161 | // Clear our old state. |
| 162 | final int[] last2Next = mLast2Next; |
| 163 | for (int i=0; i<lastNumPointers; i++) { |
| 164 | last2Next[i] = -1; |
| 165 | } |
| 166 | |
| 167 | if (DEBUG_POINTERS) Log.v("InputDevice", |
| 168 | "Update pointers: lastNumPointers=" + lastNumPointers |
| 169 | + " nextNumPointers=" + nextNumPointers); |
| 170 | |
| 171 | // Figure out the closes new points to the previous points. |
| 172 | final int[] next2Last = mNext2Last; |
| 173 | final long[] next2LastDistance = mNext2LastDistance; |
| 174 | boolean conflicts = false; |
| 175 | for (int i=0; i<nextNumPointers; i++) { |
| 176 | conflicts |= assignPointer(i, true); |
| 177 | } |
| 178 | |
| 179 | // Resolve ambiguities in pointer mappings, when two or more |
| 180 | // new pointer locations find their best previous location is |
| 181 | // the same. |
| 182 | if (conflicts) { |
| 183 | if (DEBUG_POINTERS) Log.v("InputDevice", "Resolving conflicts"); |
| 184 | |
| 185 | for (int i=0; i<lastNumPointers; i++) { |
| 186 | if (last2Next[i] != -2) { |
| 187 | continue; |
| 188 | } |
| 189 | |
| 190 | // Note that this algorithm is far from perfect. Ideally |
| 191 | // we should do something like the one described at |
| 192 | // http://portal.acm.org/citation.cfm?id=997856 |
| 193 | |
| 194 | if (DEBUG_POINTERS) Log.v("InputDevice", |
| 195 | "Resolving last index #" + i); |
| 196 | |
| 197 | int numFound; |
| 198 | do { |
| 199 | numFound = 0; |
| 200 | long worstDistance = 0; |
| 201 | int worstJ = -1; |
| 202 | for (int j=0; j<nextNumPointers; j++) { |
| 203 | if (next2Last[j] != i) { |
| 204 | continue; |
| 205 | } |
| 206 | numFound++; |
| 207 | if (worstDistance < next2LastDistance[j]) { |
| 208 | worstDistance = next2LastDistance[j]; |
| 209 | worstJ = j; |
| 210 | } |
| 211 | } |
| 212 | |
| 213 | if (worstJ >= 0) { |
| 214 | if (DEBUG_POINTERS) Log.v("InputDevice", |
| 215 | "Worst new pointer: " + worstJ |
| 216 | + " (distance=" + worstDistance + ")"); |
| 217 | if (assignPointer(worstJ, false)) { |
| 218 | // In this case there is no last pointer |
| 219 | // remaining for this new one! |
| 220 | next2Last[worstJ] = -1; |
| 221 | } |
| 222 | } |
| 223 | } while (numFound > 2); |
| 224 | } |
| 225 | } |
| 226 | |
| 227 | int retIndex = -1; |
| 228 | |
| 229 | if (lastNumPointers < nextNumPointers) { |
| 230 | // We have one or more new pointers that are down. Create a |
| 231 | // new pointer identifier for one of them. |
| 232 | if (DEBUG_POINTERS) Log.v("InputDevice", "Adding new pointer"); |
| 233 | int nextId = 0; |
| 234 | int i=0; |
| 235 | while (i < lastNumPointers) { |
| 236 | if (mPointerIds[i] > nextId) { |
| 237 | // Found a hole, insert the pointer here. |
| 238 | if (DEBUG_POINTERS) Log.v("InputDevice", |
| 239 | "Inserting new pointer at hole " + i); |
| 240 | System.arraycopy(mPointerIds, i, mPointerIds, |
| 241 | i+1, lastNumPointers-i); |
| 242 | System.arraycopy(lastData, i*MotionEvent.NUM_SAMPLE_DATA, |
| 243 | lastData, (i+1)*MotionEvent.NUM_SAMPLE_DATA, |
| 244 | (lastNumPointers-i)*MotionEvent.NUM_SAMPLE_DATA); |
| 245 | break; |
| 246 | } |
| 247 | i++; |
| 248 | nextId++; |
| 249 | } |
| 250 | |
| 251 | if (DEBUG_POINTERS) Log.v("InputDevice", |
| 252 | "New pointer id " + nextId + " at index " + i); |
| 253 | |
| 254 | mLastNumPointers++; |
| 255 | retIndex = i; |
| 256 | mPointerIds[i] = nextId; |
| 257 | |
| 258 | // And assign this identifier to the first new pointer. |
| 259 | for (int j=0; j<nextNumPointers; j++) { |
| 260 | if (next2Last[j] < 0) { |
| 261 | if (DEBUG_POINTERS) Log.v("InputDevice", |
| 262 | "Assigning new id to new pointer index " + j); |
| 263 | next2Last[j] = i; |
| 264 | break; |
| 265 | } |
| 266 | } |
| 267 | } |
| 268 | |
| 269 | // Propagate all of the current data into the appropriate |
| 270 | // location in the old data to match the pointer ID that was |
| 271 | // assigned to it. |
| 272 | for (int i=0; i<nextNumPointers; i++) { |
| 273 | int lastIndex = next2Last[i]; |
| 274 | if (lastIndex >= 0) { |
| 275 | if (DEBUG_POINTERS) Log.v("InputDevice", |
| 276 | "Copying next pointer index " + i |
| 277 | + " to last index " + lastIndex); |
| 278 | System.arraycopy(nextData, i*MotionEvent.NUM_SAMPLE_DATA, |
| 279 | lastData, lastIndex*MotionEvent.NUM_SAMPLE_DATA, |
| 280 | MotionEvent.NUM_SAMPLE_DATA); |
| 281 | } |
| 282 | } |
| 283 | |
| 284 | if (lastNumPointers > nextNumPointers) { |
| 285 | // One or more pointers has gone up. Find the first one, |
| 286 | // and adjust accordingly. |
| 287 | if (DEBUG_POINTERS) Log.v("InputDevice", "Removing old pointer"); |
| 288 | for (int i=0; i<lastNumPointers; i++) { |
| 289 | if (last2Next[i] == -1) { |
| 290 | if (DEBUG_POINTERS) Log.v("InputDevice", |
| 291 | "Removing old pointer at index " + i); |
| 292 | retIndex = i; |
| 293 | break; |
| 294 | } |
| 295 | } |
| 296 | } |
| 297 | |
| 298 | return retIndex; |
| 299 | } |
| 300 | |
| 301 | void removeOldPointer(int index) { |
| 302 | final int lastNumPointers = mLastNumPointers; |
| 303 | if (index >= 0 && index < lastNumPointers) { |
| 304 | System.arraycopy(mPointerIds, index+1, mPointerIds, |
| 305 | index, lastNumPointers-index-1); |
| 306 | System.arraycopy(mLastData, (index+1)*MotionEvent.NUM_SAMPLE_DATA, |
| 307 | mLastData, (index)*MotionEvent.NUM_SAMPLE_DATA, |
| 308 | (lastNumPointers-index-1)*MotionEvent.NUM_SAMPLE_DATA); |
| 309 | mLastNumPointers--; |
| 310 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 311 | } |
| 312 | |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 313 | MotionEvent generateAbsMotion(InputDevice device, long curTime, |
| 314 | long curTimeNano, Display display, int orientation, |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 315 | int metaState) { |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 316 | |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame^] | 317 | if (mNextNumPointers <= 0 && mLastNumPointers <= 0) { |
| 318 | return null; |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 319 | } |
| 320 | |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame^] | 321 | final int lastNumPointers = mLastNumPointers; |
| 322 | final int nextNumPointers = mNextNumPointers; |
| 323 | if (mNextNumPointers > MAX_POINTERS) { |
| 324 | Log.w("InputDevice", "Number of pointers " + mNextNumPointers |
| 325 | + " exceeded maximum of " + MAX_POINTERS); |
| 326 | mNextNumPointers = MAX_POINTERS; |
| 327 | } |
| 328 | |
| 329 | int upOrDownPointer = updatePointerIdentifiers(); |
| 330 | |
| 331 | final float[] reportData = mReportData; |
| 332 | final int[] rawData = mLastData; |
| 333 | |
| 334 | final int numPointers = mLastNumPointers; |
| 335 | |
| 336 | if (DEBUG_POINTERS) Log.v("InputDevice", "Processing " |
| 337 | + numPointers + " pointers (going from " + lastNumPointers |
| 338 | + " to " + nextNumPointers + ")"); |
| 339 | |
| 340 | for (int i=0; i<numPointers; i++) { |
| 341 | final int pos = i * MotionEvent.NUM_SAMPLE_DATA; |
| 342 | reportData[pos + MotionEvent.SAMPLE_X] = rawData[pos + MotionEvent.SAMPLE_X]; |
| 343 | reportData[pos + MotionEvent.SAMPLE_Y] = rawData[pos + MotionEvent.SAMPLE_Y]; |
| 344 | reportData[pos + MotionEvent.SAMPLE_PRESSURE] = rawData[pos + MotionEvent.SAMPLE_PRESSURE]; |
| 345 | reportData[pos + MotionEvent.SAMPLE_SIZE] = rawData[pos + MotionEvent.SAMPLE_SIZE]; |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 346 | } |
| 347 | |
| 348 | int action; |
| 349 | int edgeFlags = 0; |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame^] | 350 | if (nextNumPointers != lastNumPointers) { |
| 351 | if (nextNumPointers > lastNumPointers) { |
| 352 | if (lastNumPointers == 0) { |
| 353 | action = MotionEvent.ACTION_DOWN; |
| 354 | mDownTime = curTime; |
| 355 | } else { |
| 356 | action = MotionEvent.ACTION_POINTER_DOWN |
| 357 | | (upOrDownPointer << MotionEvent.ACTION_POINTER_ID_SHIFT); |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 358 | } |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 359 | } else { |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame^] | 360 | if (numPointers == 1) { |
| 361 | action = MotionEvent.ACTION_UP; |
| 362 | } else { |
| 363 | action = MotionEvent.ACTION_POINTER_UP |
| 364 | | (upOrDownPointer << MotionEvent.ACTION_POINTER_ID_SHIFT); |
| 365 | } |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 366 | } |
| 367 | currentMove = null; |
| 368 | } else { |
| 369 | action = MotionEvent.ACTION_MOVE; |
| 370 | } |
| 371 | |
| 372 | final int dispW = display.getWidth()-1; |
| 373 | final int dispH = display.getHeight()-1; |
| 374 | int w = dispW; |
| 375 | int h = dispH; |
| 376 | if (orientation == Surface.ROTATION_90 |
| 377 | || orientation == Surface.ROTATION_270) { |
| 378 | int tmp = w; |
| 379 | w = h; |
| 380 | h = tmp; |
| 381 | } |
| 382 | |
| 383 | final AbsoluteInfo absX = device.absX; |
| 384 | final AbsoluteInfo absY = device.absY; |
| 385 | final AbsoluteInfo absPressure = device.absPressure; |
| 386 | final AbsoluteInfo absSize = device.absSize; |
| 387 | for (int i=0; i<numPointers; i++) { |
| 388 | final int j = i * MotionEvent.NUM_SAMPLE_DATA; |
| 389 | |
| 390 | if (absX != null) { |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame^] | 391 | reportData[j + MotionEvent.SAMPLE_X] = |
| 392 | ((reportData[j + MotionEvent.SAMPLE_X]-absX.minValue) |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 393 | / absX.range) * w; |
| 394 | } |
| 395 | if (absY != null) { |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame^] | 396 | reportData[j + MotionEvent.SAMPLE_Y] = |
| 397 | ((reportData[j + MotionEvent.SAMPLE_Y]-absY.minValue) |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 398 | / absY.range) * h; |
| 399 | } |
| 400 | if (absPressure != null) { |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame^] | 401 | reportData[j + MotionEvent.SAMPLE_PRESSURE] = |
| 402 | ((reportData[j + MotionEvent.SAMPLE_PRESSURE]-absPressure.minValue) |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 403 | / (float)absPressure.range); |
| 404 | } |
| 405 | if (absSize != null) { |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame^] | 406 | reportData[j + MotionEvent.SAMPLE_SIZE] = |
| 407 | ((reportData[j + MotionEvent.SAMPLE_SIZE]-absSize.minValue) |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 408 | / (float)absSize.range); |
| 409 | } |
| 410 | |
| 411 | switch (orientation) { |
| 412 | case Surface.ROTATION_90: { |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame^] | 413 | final float temp = reportData[MotionEvent.SAMPLE_X]; |
| 414 | reportData[j + MotionEvent.SAMPLE_X] = reportData[j + MotionEvent.SAMPLE_Y]; |
| 415 | reportData[j + MotionEvent.SAMPLE_Y] = w-temp; |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 416 | break; |
| 417 | } |
| 418 | case Surface.ROTATION_180: { |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame^] | 419 | reportData[j + MotionEvent.SAMPLE_X] = w-reportData[j + MotionEvent.SAMPLE_X]; |
| 420 | reportData[j + MotionEvent.SAMPLE_Y] = h-reportData[j + MotionEvent.SAMPLE_Y]; |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 421 | break; |
| 422 | } |
| 423 | case Surface.ROTATION_270: { |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame^] | 424 | final float temp = reportData[i + MotionEvent.SAMPLE_X]; |
| 425 | reportData[j + MotionEvent.SAMPLE_X] = h-reportData[j + MotionEvent.SAMPLE_Y]; |
| 426 | reportData[j + MotionEvent.SAMPLE_Y] = temp; |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 427 | break; |
| 428 | } |
| 429 | } |
| 430 | } |
| 431 | |
| 432 | // We only consider the first pointer when computing the edge |
| 433 | // flags, since they are global to the event. |
Dianne Hackborn | ddca3ee | 2009-07-23 19:01:31 -0700 | [diff] [blame] | 434 | if (action == MotionEvent.ACTION_DOWN) { |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame^] | 435 | if (reportData[MotionEvent.SAMPLE_X] <= 0) { |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 436 | edgeFlags |= MotionEvent.EDGE_LEFT; |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame^] | 437 | } else if (reportData[MotionEvent.SAMPLE_X] >= dispW) { |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 438 | edgeFlags |= MotionEvent.EDGE_RIGHT; |
| 439 | } |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame^] | 440 | if (reportData[MotionEvent.SAMPLE_Y] <= 0) { |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 441 | edgeFlags |= MotionEvent.EDGE_TOP; |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame^] | 442 | } else if (reportData[MotionEvent.SAMPLE_Y] >= dispH) { |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 443 | edgeFlags |= MotionEvent.EDGE_BOTTOM; |
| 444 | } |
| 445 | } |
| 446 | |
| 447 | if (currentMove != null) { |
| 448 | if (false) Log.i("InputDevice", "Adding batch x=" |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame^] | 449 | + reportData[MotionEvent.SAMPLE_X] |
| 450 | + " y=" + reportData[MotionEvent.SAMPLE_Y] |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 451 | + " to " + currentMove); |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame^] | 452 | currentMove.addBatch(curTime, reportData, metaState); |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 453 | if (WindowManagerPolicy.WATCH_POINTER) { |
| 454 | Log.i("KeyInputQueue", "Updating: " + currentMove); |
| 455 | } |
| 456 | return null; |
| 457 | } |
| 458 | |
| 459 | MotionEvent me = MotionEvent.obtainNano(mDownTime, curTime, |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame^] | 460 | curTimeNano, action, numPointers, mPointerIds, reportData, |
| 461 | metaState, xPrecision, yPrecision, device.id, edgeFlags); |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 462 | if (action == MotionEvent.ACTION_MOVE) { |
| 463 | currentMove = me; |
| 464 | } |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame^] | 465 | |
| 466 | if (nextNumPointers < lastNumPointers) { |
| 467 | removeOldPointer(upOrDownPointer); |
| 468 | } |
| 469 | |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 470 | return me; |
| 471 | } |
| 472 | |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame^] | 473 | boolean hasMore() { |
| 474 | return mLastNumPointers != mNextNumPointers; |
| 475 | } |
| 476 | |
| 477 | void finish() { |
| 478 | mNextNumPointers = mAddingPointerOffset = 0; |
| 479 | mNextData[MotionEvent.SAMPLE_PRESSURE] = 0; |
| 480 | } |
| 481 | |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 482 | MotionEvent generateRelMotion(InputDevice device, long curTime, |
| 483 | long curTimeNano, int orientation, int metaState) { |
| 484 | |
| 485 | final float[] scaled = mReportData; |
| 486 | |
| 487 | // For now we only support 1 pointer with relative motions. |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame^] | 488 | scaled[MotionEvent.SAMPLE_X] = mNextData[MotionEvent.SAMPLE_X]; |
| 489 | scaled[MotionEvent.SAMPLE_Y] = mNextData[MotionEvent.SAMPLE_Y]; |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 490 | scaled[MotionEvent.SAMPLE_PRESSURE] = 1.0f; |
| 491 | scaled[MotionEvent.SAMPLE_SIZE] = 0; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 492 | int edgeFlags = 0; |
Dianne Hackborn | e3dd884 | 2009-07-14 12:06:54 -0700 | [diff] [blame] | 493 | |
| 494 | int action; |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame^] | 495 | if (mNextNumPointers != mLastNumPointers) { |
| 496 | mNextData[MotionEvent.SAMPLE_X] = |
| 497 | mNextData[MotionEvent.SAMPLE_Y] = 0; |
| 498 | if (mNextNumPointers > 0 && mLastNumPointers == 0) { |
Dianne Hackborn | e3dd884 | 2009-07-14 12:06:54 -0700 | [diff] [blame] | 499 | action = MotionEvent.ACTION_DOWN; |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 500 | mDownTime = curTime; |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame^] | 501 | } else if (mNextNumPointers == 0) { |
Dianne Hackborn | e3dd884 | 2009-07-14 12:06:54 -0700 | [diff] [blame] | 502 | action = MotionEvent.ACTION_UP; |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame^] | 503 | } else { |
| 504 | action = MotionEvent.ACTION_MOVE; |
Dianne Hackborn | e3dd884 | 2009-07-14 12:06:54 -0700 | [diff] [blame] | 505 | } |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame^] | 506 | mLastNumPointers = mNextNumPointers; |
Dianne Hackborn | e3dd884 | 2009-07-14 12:06:54 -0700 | [diff] [blame] | 507 | currentMove = null; |
| 508 | } else { |
| 509 | action = MotionEvent.ACTION_MOVE; |
| 510 | } |
| 511 | |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 512 | scaled[MotionEvent.SAMPLE_X] *= xMoveScale; |
| 513 | scaled[MotionEvent.SAMPLE_Y] *= yMoveScale; |
| 514 | switch (orientation) { |
| 515 | case Surface.ROTATION_90: { |
| 516 | final float temp = scaled[MotionEvent.SAMPLE_X]; |
| 517 | scaled[MotionEvent.SAMPLE_X] = scaled[MotionEvent.SAMPLE_Y]; |
| 518 | scaled[MotionEvent.SAMPLE_Y] = -temp; |
| 519 | break; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 520 | } |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 521 | case Surface.ROTATION_180: { |
| 522 | scaled[MotionEvent.SAMPLE_X] = -scaled[MotionEvent.SAMPLE_X]; |
| 523 | scaled[MotionEvent.SAMPLE_Y] = -scaled[MotionEvent.SAMPLE_Y]; |
| 524 | break; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 525 | } |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 526 | case Surface.ROTATION_270: { |
| 527 | final float temp = scaled[MotionEvent.SAMPLE_X]; |
| 528 | scaled[MotionEvent.SAMPLE_X] = -scaled[MotionEvent.SAMPLE_Y]; |
| 529 | scaled[MotionEvent.SAMPLE_Y] = temp; |
| 530 | break; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 531 | } |
| 532 | } |
| 533 | |
Dianne Hackborn | e3dd884 | 2009-07-14 12:06:54 -0700 | [diff] [blame] | 534 | if (currentMove != null) { |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 535 | if (false) Log.i("InputDevice", "Adding batch x=" |
| 536 | + scaled[MotionEvent.SAMPLE_X] |
| 537 | + " y=" + scaled[MotionEvent.SAMPLE_Y] |
| 538 | + " to " + currentMove); |
| 539 | currentMove.addBatch(curTime, scaled, metaState); |
Dianne Hackborn | e3dd884 | 2009-07-14 12:06:54 -0700 | [diff] [blame] | 540 | if (WindowManagerPolicy.WATCH_POINTER) { |
| 541 | Log.i("KeyInputQueue", "Updating: " + currentMove); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 542 | } |
Dianne Hackborn | e3dd884 | 2009-07-14 12:06:54 -0700 | [diff] [blame] | 543 | return null; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 544 | } |
Dianne Hackborn | e3dd884 | 2009-07-14 12:06:54 -0700 | [diff] [blame] | 545 | |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 546 | MotionEvent me = MotionEvent.obtainNano(mDownTime, curTime, |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame^] | 547 | curTimeNano, action, 1, mPointerIds, scaled, metaState, |
Dianne Hackborn | e3dd884 | 2009-07-14 12:06:54 -0700 | [diff] [blame] | 548 | xPrecision, yPrecision, device.id, edgeFlags); |
| 549 | if (action == MotionEvent.ACTION_MOVE) { |
| 550 | currentMove = me; |
| 551 | } |
| 552 | return me; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 553 | } |
| 554 | } |
| 555 | |
| 556 | static class AbsoluteInfo { |
| 557 | int minValue; |
| 558 | int maxValue; |
| 559 | int range; |
| 560 | int flat; |
| 561 | int fuzz; |
| 562 | }; |
| 563 | |
| 564 | InputDevice(int _id, int _classes, String _name, |
| 565 | AbsoluteInfo _absX, AbsoluteInfo _absY, |
| 566 | AbsoluteInfo _absPressure, AbsoluteInfo _absSize) { |
| 567 | id = _id; |
| 568 | classes = _classes; |
| 569 | name = _name; |
| 570 | absX = _absX; |
| 571 | absY = _absY; |
| 572 | absPressure = _absPressure; |
| 573 | absSize = _absSize; |
| 574 | } |
| 575 | }; |