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; |
Dianne Hackborn | 1411d1c | 2009-10-12 23:21:18 -0700 | [diff] [blame] | 27 | static final boolean DEBUG_HACKS = false; |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame] | 28 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 29 | /** Amount that trackball needs to move in order to generate a key event. */ |
| 30 | static final int TRACKBALL_MOVEMENT_THRESHOLD = 6; |
| 31 | |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 32 | /** Maximum number of pointers we will track and report. */ |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame] | 33 | static final int MAX_POINTERS = 10; |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 34 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 35 | final int id; |
| 36 | final int classes; |
| 37 | final String name; |
| 38 | final AbsoluteInfo absX; |
| 39 | final AbsoluteInfo absY; |
| 40 | final AbsoluteInfo absPressure; |
| 41 | final AbsoluteInfo absSize; |
| 42 | |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 43 | long mKeyDownTime = 0; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 44 | int mMetaKeysState = 0; |
| 45 | |
Dianne Hackborn | 2a2b3443 | 2009-08-12 17:13:55 -0700 | [diff] [blame] | 46 | // For use by KeyInputQueue for keeping track of the current touch |
| 47 | // data in the old non-multi-touch protocol. |
| 48 | final int[] curTouchVals = new int[MotionEvent.NUM_SAMPLE_DATA * 2]; |
| 49 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 50 | final MotionState mAbs = new MotionState(0, 0); |
| 51 | final MotionState mRel = new MotionState(TRACKBALL_MOVEMENT_THRESHOLD, |
| 52 | TRACKBALL_MOVEMENT_THRESHOLD); |
| 53 | |
| 54 | static class MotionState { |
| 55 | int xPrecision; |
| 56 | int yPrecision; |
| 57 | float xMoveScale; |
| 58 | float yMoveScale; |
| 59 | MotionEvent currentMove = null; |
| 60 | boolean changed = false; |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 61 | long mDownTime = 0; |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame] | 62 | |
| 63 | // The currently assigned pointer IDs, corresponding to the last data. |
| 64 | int[] mPointerIds = new int[MAX_POINTERS]; |
| 65 | |
| 66 | // This is the last generated pointer data, ordered to match |
| 67 | // mPointerIds. |
Dianne Hackborn | dc95372 | 2009-10-19 11:24:39 -0700 | [diff] [blame] | 68 | boolean mSkipLastPointers; |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame] | 69 | int mLastNumPointers = 0; |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 70 | final int[] mLastData = new int[MotionEvent.NUM_SAMPLE_DATA * MAX_POINTERS]; |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame] | 71 | |
| 72 | // This is the next set of pointer data being generated. It is not |
| 73 | // in any known order, and will be propagated in to mLastData |
| 74 | // as part of mapping it to the appropriate pointer IDs. |
| 75 | // Note that we have one extra sample of data here, to help clients |
| 76 | // avoid doing bounds checking. |
| 77 | int mNextNumPointers = 0; |
| 78 | final int[] mNextData = new int[(MotionEvent.NUM_SAMPLE_DATA * MAX_POINTERS) |
| 79 | + MotionEvent.NUM_SAMPLE_DATA]; |
| 80 | |
Dianne Hackborn | 1411d1c | 2009-10-12 23:21:18 -0700 | [diff] [blame] | 81 | // Used to determine whether we dropped bad data, to avoid doing |
| 82 | // it repeatedly. |
| 83 | final boolean[] mDroppedBadPoint = new boolean[MAX_POINTERS]; |
| 84 | |
| 85 | // Used to perform averaging of reported coordinates, to smooth |
| 86 | // the data and filter out transients during a release. |
| 87 | static final int HISTORY_SIZE = 5; |
| 88 | int[] mHistoryDataStart = new int[MAX_POINTERS]; |
| 89 | int[] mHistoryDataEnd = new int[MAX_POINTERS]; |
| 90 | final int[] mHistoryData = new int[(MotionEvent.NUM_SAMPLE_DATA * MAX_POINTERS) |
| 91 | * HISTORY_SIZE]; |
| 92 | final int[] mAveragedData = new int[MotionEvent.NUM_SAMPLE_DATA * MAX_POINTERS]; |
| 93 | |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame] | 94 | // Temporary data structures for doing the pointer ID mapping. |
| 95 | final int[] mLast2Next = new int[MAX_POINTERS]; |
| 96 | final int[] mNext2Last = new int[MAX_POINTERS]; |
| 97 | final long[] mNext2LastDistance = new long[MAX_POINTERS]; |
| 98 | |
| 99 | // Temporary data structure for generating the final motion data. |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 100 | 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] | 101 | |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame] | 102 | // This is not used here, but can be used by callers for state tracking. |
| 103 | int mAddingPointerOffset = 0; |
| 104 | final boolean[] mDown = new boolean[MAX_POINTERS]; |
| 105 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 106 | MotionState(int mx, int my) { |
| 107 | xPrecision = mx; |
| 108 | yPrecision = my; |
| 109 | xMoveScale = mx != 0 ? (1.0f/mx) : 1.0f; |
| 110 | yMoveScale = my != 0 ? (1.0f/my) : 1.0f; |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame] | 111 | for (int i=0; i<MAX_POINTERS; i++) { |
| 112 | mPointerIds[i] = i; |
| 113 | } |
| 114 | } |
| 115 | |
Dianne Hackborn | 1411d1c | 2009-10-12 23:21:18 -0700 | [diff] [blame] | 116 | /** |
| 117 | * Special hack for devices that have bad screen data: if one of the |
| 118 | * points has moved more than a screen height from the last position, |
| 119 | * then drop it. |
| 120 | */ |
| 121 | void dropBadPoint(InputDevice dev) { |
| 122 | // We should always have absY, but let's be paranoid. |
| 123 | if (dev.absY == null) { |
| 124 | return; |
| 125 | } |
| 126 | // Don't do anything if a finger is going down or up. We run |
| 127 | // here before assigning pointer IDs, so there isn't a good |
| 128 | // way to do per-finger matching. |
| 129 | if (mNextNumPointers != mLastNumPointers) { |
| 130 | return; |
| 131 | } |
| 132 | |
| 133 | // We consider a single movement across more than a 7/16 of |
| 134 | // the long size of the screen to be bad. This was a magic value |
| 135 | // determined by looking at the maximum distance it is feasible |
| 136 | // to actually move in one sample. |
| 137 | final int maxDy = ((dev.absY.maxValue-dev.absY.minValue)*7)/16; |
| 138 | |
| 139 | // Look through all new points and see if any are farther than |
| 140 | // acceptable from all previous points. |
| 141 | for (int i=mNextNumPointers-1; i>=0; i--) { |
| 142 | final int ioff = i * MotionEvent.NUM_SAMPLE_DATA; |
| 143 | //final int x = mNextData[ioff + MotionEvent.SAMPLE_X]; |
| 144 | final int y = mNextData[ioff + MotionEvent.SAMPLE_Y]; |
| 145 | if (DEBUG_HACKS) Log.v("InputDevice", "Looking at next point #" + i + ": y=" + y); |
| 146 | boolean dropped = false; |
| 147 | if (!mDroppedBadPoint[i] && mLastNumPointers > 0) { |
| 148 | dropped = true; |
| 149 | int closestDy = -1; |
| 150 | int closestY = -1; |
| 151 | // We will drop this new point if it is sufficiently |
| 152 | // far away from -all- last points. |
| 153 | for (int j=mLastNumPointers-1; j>=0; j--) { |
| 154 | final int joff = j * MotionEvent.NUM_SAMPLE_DATA; |
| 155 | //int dx = x - mLastData[joff + MotionEvent.SAMPLE_X]; |
| 156 | int dy = y - mLastData[joff + MotionEvent.SAMPLE_Y]; |
| 157 | //if (dx < 0) dx = -dx; |
| 158 | if (dy < 0) dy = -dy; |
| 159 | if (DEBUG_HACKS) Log.v("InputDevice", "Comparing with last point #" + j |
| 160 | + ": y=" + mLastData[joff] + " dy=" + dy); |
| 161 | if (dy < maxDy) { |
| 162 | dropped = false; |
| 163 | break; |
| 164 | } else if (closestDy < 0 || dy < closestDy) { |
| 165 | closestDy = dy; |
| 166 | closestY = mLastData[joff + MotionEvent.SAMPLE_Y]; |
| 167 | } |
| 168 | } |
| 169 | if (dropped) { |
| 170 | dropped = true; |
| 171 | Log.i("InputDevice", "Dropping bad point #" + i |
| 172 | + ": newY=" + y + " closestDy=" + closestDy |
| 173 | + " maxDy=" + maxDy); |
| 174 | mNextData[ioff + MotionEvent.SAMPLE_Y] = closestY; |
| 175 | break; |
| 176 | } |
| 177 | } |
| 178 | mDroppedBadPoint[i] = dropped; |
| 179 | } |
| 180 | } |
| 181 | |
| 182 | /** |
| 183 | * Special hack for devices that have bad screen data: aggregate and |
| 184 | * compute averages of the coordinate data, to reduce the amount of |
| 185 | * jitter seen by applications. |
| 186 | */ |
| 187 | int[] generateAveragedData(int upOrDownPointer, int lastNumPointers, |
| 188 | int nextNumPointers) { |
| 189 | final int numPointers = mLastNumPointers; |
| 190 | final int[] rawData = mLastData; |
| 191 | if (DEBUG_HACKS) Log.v("InputDevice", "lastNumPointers=" + lastNumPointers |
| 192 | + " nextNumPointers=" + nextNumPointers |
| 193 | + " numPointers=" + numPointers); |
| 194 | for (int i=0; i<numPointers; i++) { |
| 195 | final int ioff = i * MotionEvent.NUM_SAMPLE_DATA; |
| 196 | // We keep the average data in offsets based on the pointer |
| 197 | // ID, so we don't need to move it around as fingers are |
| 198 | // pressed and released. |
| 199 | final int p = mPointerIds[i]; |
| 200 | final int poff = p * MotionEvent.NUM_SAMPLE_DATA * HISTORY_SIZE; |
| 201 | if (i == upOrDownPointer && lastNumPointers != nextNumPointers) { |
| 202 | if (lastNumPointers < nextNumPointers) { |
| 203 | // This pointer is going down. Clear its history |
| 204 | // and start fresh. |
| 205 | if (DEBUG_HACKS) Log.v("InputDevice", "Pointer down @ index " |
| 206 | + upOrDownPointer + " id " + mPointerIds[i]); |
| 207 | mHistoryDataStart[i] = 0; |
| 208 | mHistoryDataEnd[i] = 0; |
| 209 | System.arraycopy(rawData, ioff, mHistoryData, poff, |
| 210 | MotionEvent.NUM_SAMPLE_DATA); |
| 211 | System.arraycopy(rawData, ioff, mAveragedData, ioff, |
| 212 | MotionEvent.NUM_SAMPLE_DATA); |
| 213 | continue; |
| 214 | } else { |
| 215 | // The pointer is going up. Just fall through to |
| 216 | // recompute the last averaged point (and don't add |
| 217 | // it as a new point to include in the average). |
| 218 | if (DEBUG_HACKS) Log.v("InputDevice", "Pointer up @ index " |
| 219 | + upOrDownPointer + " id " + mPointerIds[i]); |
| 220 | } |
| 221 | } else { |
| 222 | int end = mHistoryDataEnd[i]; |
| 223 | int eoff = poff + (end*MotionEvent.NUM_SAMPLE_DATA); |
| 224 | int oldX = mHistoryData[eoff + MotionEvent.SAMPLE_X]; |
| 225 | int oldY = mHistoryData[eoff + MotionEvent.SAMPLE_Y]; |
| 226 | int newX = rawData[ioff + MotionEvent.SAMPLE_X]; |
| 227 | int newY = rawData[ioff + MotionEvent.SAMPLE_Y]; |
| 228 | int dx = newX-oldX; |
| 229 | int dy = newY-oldY; |
| 230 | int delta = dx*dx + dy*dy; |
| 231 | if (DEBUG_HACKS) Log.v("InputDevice", "Delta from last: " + delta); |
| 232 | if (delta >= (75*75)) { |
| 233 | // Magic number, if moving farther than this, turn |
| 234 | // off filtering to avoid lag in response. |
| 235 | mHistoryDataStart[i] = 0; |
| 236 | mHistoryDataEnd[i] = 0; |
| 237 | System.arraycopy(rawData, ioff, mHistoryData, poff, |
| 238 | MotionEvent.NUM_SAMPLE_DATA); |
| 239 | System.arraycopy(rawData, ioff, mAveragedData, ioff, |
| 240 | MotionEvent.NUM_SAMPLE_DATA); |
| 241 | continue; |
| 242 | } else { |
| 243 | end++; |
| 244 | if (end >= HISTORY_SIZE) { |
| 245 | end -= HISTORY_SIZE; |
| 246 | } |
| 247 | mHistoryDataEnd[i] = end; |
| 248 | int noff = poff + (end*MotionEvent.NUM_SAMPLE_DATA); |
| 249 | mHistoryData[noff + MotionEvent.SAMPLE_X] = newX; |
| 250 | mHistoryData[noff + MotionEvent.SAMPLE_Y] = newY; |
| 251 | mHistoryData[noff + MotionEvent.SAMPLE_PRESSURE] |
| 252 | = rawData[ioff + MotionEvent.SAMPLE_PRESSURE]; |
| 253 | int start = mHistoryDataStart[i]; |
| 254 | if (end == start) { |
| 255 | start++; |
| 256 | if (start >= HISTORY_SIZE) { |
| 257 | start -= HISTORY_SIZE; |
| 258 | } |
| 259 | mHistoryDataStart[i] = start; |
| 260 | } |
| 261 | } |
| 262 | } |
| 263 | |
| 264 | // Now compute the average. |
| 265 | int start = mHistoryDataStart[i]; |
| 266 | int end = mHistoryDataEnd[i]; |
| 267 | int x=0, y=0; |
| 268 | int totalPressure = 0; |
| 269 | while (start != end) { |
| 270 | int soff = poff + (start*MotionEvent.NUM_SAMPLE_DATA); |
| 271 | int pressure = mHistoryData[soff + MotionEvent.SAMPLE_PRESSURE]; |
Dianne Hackborn | 53cd579 | 2009-10-13 19:50:51 -0700 | [diff] [blame] | 272 | if (pressure <= 0) pressure = 1; |
Dianne Hackborn | 1411d1c | 2009-10-12 23:21:18 -0700 | [diff] [blame] | 273 | x += mHistoryData[soff + MotionEvent.SAMPLE_X] * pressure; |
| 274 | y += mHistoryData[soff + MotionEvent.SAMPLE_Y] * pressure; |
| 275 | totalPressure += pressure; |
| 276 | start++; |
| 277 | if (start >= HISTORY_SIZE) start = 0; |
| 278 | } |
| 279 | int eoff = poff + (end*MotionEvent.NUM_SAMPLE_DATA); |
| 280 | int pressure = mHistoryData[eoff + MotionEvent.SAMPLE_PRESSURE]; |
Dianne Hackborn | 53cd579 | 2009-10-13 19:50:51 -0700 | [diff] [blame] | 281 | if (pressure <= 0) pressure = 1; |
Dianne Hackborn | 1411d1c | 2009-10-12 23:21:18 -0700 | [diff] [blame] | 282 | x += mHistoryData[eoff + MotionEvent.SAMPLE_X] * pressure; |
| 283 | y += mHistoryData[eoff + MotionEvent.SAMPLE_Y] * pressure; |
| 284 | totalPressure += pressure; |
| 285 | x /= totalPressure; |
| 286 | y /= totalPressure; |
| 287 | if (DEBUG_HACKS) Log.v("InputDevice", "Averaging " + totalPressure |
| 288 | + " weight: (" + x + "," + y + ")"); |
| 289 | mAveragedData[ioff + MotionEvent.SAMPLE_X] = x; |
| 290 | mAveragedData[ioff + MotionEvent.SAMPLE_Y] = y; |
Dianne Hackborn | 0579998 | 2009-11-23 13:08:14 -0800 | [diff] [blame^] | 291 | mAveragedData[ioff + MotionEvent.SAMPLE_PRESSURE] = |
| 292 | rawData[ioff + MotionEvent.SAMPLE_PRESSURE]; |
| 293 | mAveragedData[ioff + MotionEvent.SAMPLE_SIZE] = |
| 294 | rawData[ioff + MotionEvent.SAMPLE_SIZE]; |
Dianne Hackborn | 1411d1c | 2009-10-12 23:21:18 -0700 | [diff] [blame] | 295 | } |
| 296 | return mAveragedData; |
| 297 | } |
| 298 | |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame] | 299 | private boolean assignPointer(int nextIndex, boolean allowOverlap) { |
| 300 | final int lastNumPointers = mLastNumPointers; |
| 301 | final int[] next2Last = mNext2Last; |
| 302 | final long[] next2LastDistance = mNext2LastDistance; |
| 303 | final int[] last2Next = mLast2Next; |
| 304 | final int[] lastData = mLastData; |
| 305 | final int[] nextData = mNextData; |
| 306 | final int id = nextIndex * MotionEvent.NUM_SAMPLE_DATA; |
| 307 | |
| 308 | if (DEBUG_POINTERS) Log.v("InputDevice", "assignPointer: nextIndex=" |
| 309 | + nextIndex + " dataOff=" + id); |
| 310 | final int x1 = nextData[id + MotionEvent.SAMPLE_X]; |
| 311 | final int y1 = nextData[id + MotionEvent.SAMPLE_Y]; |
| 312 | |
| 313 | long bestDistance = -1; |
| 314 | int bestIndex = -1; |
| 315 | for (int j=0; j<lastNumPointers; j++) { |
| 316 | if (!allowOverlap && last2Next[j] < 0) { |
| 317 | continue; |
| 318 | } |
| 319 | final int jd = j * MotionEvent.NUM_SAMPLE_DATA; |
| 320 | final int xd = lastData[jd + MotionEvent.SAMPLE_X] - x1; |
| 321 | final int yd = lastData[jd + MotionEvent.SAMPLE_Y] - y1; |
| 322 | final long distance = xd*(long)xd + yd*(long)yd; |
| 323 | if (j == 0 || distance < bestDistance) { |
| 324 | bestDistance = distance; |
| 325 | bestIndex = j; |
| 326 | } |
| 327 | } |
| 328 | |
| 329 | if (DEBUG_POINTERS) Log.v("InputDevice", "New index " + nextIndex |
| 330 | + " best old index=" + bestIndex + " (distance=" |
| 331 | + bestDistance + ")"); |
| 332 | next2Last[nextIndex] = bestIndex; |
| 333 | next2LastDistance[nextIndex] = bestDistance; |
| 334 | |
| 335 | if (bestIndex < 0) { |
| 336 | return true; |
| 337 | } |
| 338 | |
| 339 | if (last2Next[bestIndex] == -1) { |
| 340 | last2Next[bestIndex] = nextIndex; |
| 341 | return false; |
| 342 | } |
| 343 | |
| 344 | if (DEBUG_POINTERS) Log.v("InputDevice", "Old index " + bestIndex |
| 345 | + " has multiple best new pointers!"); |
| 346 | |
| 347 | last2Next[bestIndex] = -2; |
| 348 | return true; |
| 349 | } |
| 350 | |
| 351 | private int updatePointerIdentifiers() { |
| 352 | final int[] lastData = mLastData; |
| 353 | final int[] nextData = mNextData; |
| 354 | final int nextNumPointers = mNextNumPointers; |
| 355 | final int lastNumPointers = mLastNumPointers; |
| 356 | |
| 357 | if (nextNumPointers == 1 && lastNumPointers == 1) { |
| 358 | System.arraycopy(nextData, 0, lastData, 0, |
| 359 | MotionEvent.NUM_SAMPLE_DATA); |
| 360 | return -1; |
| 361 | } |
| 362 | |
| 363 | // Clear our old state. |
| 364 | final int[] last2Next = mLast2Next; |
| 365 | for (int i=0; i<lastNumPointers; i++) { |
| 366 | last2Next[i] = -1; |
| 367 | } |
| 368 | |
| 369 | if (DEBUG_POINTERS) Log.v("InputDevice", |
| 370 | "Update pointers: lastNumPointers=" + lastNumPointers |
| 371 | + " nextNumPointers=" + nextNumPointers); |
| 372 | |
| 373 | // Figure out the closes new points to the previous points. |
| 374 | final int[] next2Last = mNext2Last; |
| 375 | final long[] next2LastDistance = mNext2LastDistance; |
| 376 | boolean conflicts = false; |
| 377 | for (int i=0; i<nextNumPointers; i++) { |
| 378 | conflicts |= assignPointer(i, true); |
| 379 | } |
| 380 | |
| 381 | // Resolve ambiguities in pointer mappings, when two or more |
| 382 | // new pointer locations find their best previous location is |
| 383 | // the same. |
| 384 | if (conflicts) { |
| 385 | if (DEBUG_POINTERS) Log.v("InputDevice", "Resolving conflicts"); |
| 386 | |
| 387 | for (int i=0; i<lastNumPointers; i++) { |
| 388 | if (last2Next[i] != -2) { |
| 389 | continue; |
| 390 | } |
| 391 | |
| 392 | // Note that this algorithm is far from perfect. Ideally |
| 393 | // we should do something like the one described at |
| 394 | // http://portal.acm.org/citation.cfm?id=997856 |
| 395 | |
| 396 | if (DEBUG_POINTERS) Log.v("InputDevice", |
| 397 | "Resolving last index #" + i); |
| 398 | |
| 399 | int numFound; |
| 400 | do { |
| 401 | numFound = 0; |
| 402 | long worstDistance = 0; |
| 403 | int worstJ = -1; |
| 404 | for (int j=0; j<nextNumPointers; j++) { |
| 405 | if (next2Last[j] != i) { |
| 406 | continue; |
| 407 | } |
| 408 | numFound++; |
| 409 | if (worstDistance < next2LastDistance[j]) { |
| 410 | worstDistance = next2LastDistance[j]; |
| 411 | worstJ = j; |
| 412 | } |
| 413 | } |
| 414 | |
| 415 | if (worstJ >= 0) { |
| 416 | if (DEBUG_POINTERS) Log.v("InputDevice", |
| 417 | "Worst new pointer: " + worstJ |
| 418 | + " (distance=" + worstDistance + ")"); |
| 419 | if (assignPointer(worstJ, false)) { |
| 420 | // In this case there is no last pointer |
| 421 | // remaining for this new one! |
| 422 | next2Last[worstJ] = -1; |
| 423 | } |
| 424 | } |
| 425 | } while (numFound > 2); |
| 426 | } |
| 427 | } |
| 428 | |
| 429 | int retIndex = -1; |
| 430 | |
| 431 | if (lastNumPointers < nextNumPointers) { |
| 432 | // We have one or more new pointers that are down. Create a |
| 433 | // new pointer identifier for one of them. |
| 434 | if (DEBUG_POINTERS) Log.v("InputDevice", "Adding new pointer"); |
| 435 | int nextId = 0; |
| 436 | int i=0; |
| 437 | while (i < lastNumPointers) { |
| 438 | if (mPointerIds[i] > nextId) { |
| 439 | // Found a hole, insert the pointer here. |
| 440 | if (DEBUG_POINTERS) Log.v("InputDevice", |
| 441 | "Inserting new pointer at hole " + i); |
| 442 | System.arraycopy(mPointerIds, i, mPointerIds, |
| 443 | i+1, lastNumPointers-i); |
| 444 | System.arraycopy(lastData, i*MotionEvent.NUM_SAMPLE_DATA, |
| 445 | lastData, (i+1)*MotionEvent.NUM_SAMPLE_DATA, |
| 446 | (lastNumPointers-i)*MotionEvent.NUM_SAMPLE_DATA); |
| 447 | break; |
| 448 | } |
| 449 | i++; |
| 450 | nextId++; |
| 451 | } |
| 452 | |
| 453 | if (DEBUG_POINTERS) Log.v("InputDevice", |
| 454 | "New pointer id " + nextId + " at index " + i); |
| 455 | |
| 456 | mLastNumPointers++; |
| 457 | retIndex = i; |
| 458 | mPointerIds[i] = nextId; |
| 459 | |
| 460 | // And assign this identifier to the first new pointer. |
| 461 | for (int j=0; j<nextNumPointers; j++) { |
| 462 | if (next2Last[j] < 0) { |
| 463 | if (DEBUG_POINTERS) Log.v("InputDevice", |
| 464 | "Assigning new id to new pointer index " + j); |
| 465 | next2Last[j] = i; |
| 466 | break; |
| 467 | } |
| 468 | } |
| 469 | } |
| 470 | |
| 471 | // Propagate all of the current data into the appropriate |
| 472 | // location in the old data to match the pointer ID that was |
| 473 | // assigned to it. |
| 474 | for (int i=0; i<nextNumPointers; i++) { |
| 475 | int lastIndex = next2Last[i]; |
| 476 | if (lastIndex >= 0) { |
| 477 | if (DEBUG_POINTERS) Log.v("InputDevice", |
| 478 | "Copying next pointer index " + i |
| 479 | + " to last index " + lastIndex); |
| 480 | System.arraycopy(nextData, i*MotionEvent.NUM_SAMPLE_DATA, |
| 481 | lastData, lastIndex*MotionEvent.NUM_SAMPLE_DATA, |
| 482 | MotionEvent.NUM_SAMPLE_DATA); |
| 483 | } |
| 484 | } |
| 485 | |
| 486 | if (lastNumPointers > nextNumPointers) { |
| 487 | // One or more pointers has gone up. Find the first one, |
| 488 | // and adjust accordingly. |
| 489 | if (DEBUG_POINTERS) Log.v("InputDevice", "Removing old pointer"); |
| 490 | for (int i=0; i<lastNumPointers; i++) { |
| 491 | if (last2Next[i] == -1) { |
| 492 | if (DEBUG_POINTERS) Log.v("InputDevice", |
| 493 | "Removing old pointer at index " + i); |
| 494 | retIndex = i; |
| 495 | break; |
| 496 | } |
| 497 | } |
| 498 | } |
| 499 | |
| 500 | return retIndex; |
| 501 | } |
| 502 | |
| 503 | void removeOldPointer(int index) { |
| 504 | final int lastNumPointers = mLastNumPointers; |
| 505 | if (index >= 0 && index < lastNumPointers) { |
| 506 | System.arraycopy(mPointerIds, index+1, mPointerIds, |
| 507 | index, lastNumPointers-index-1); |
| 508 | System.arraycopy(mLastData, (index+1)*MotionEvent.NUM_SAMPLE_DATA, |
| 509 | mLastData, (index)*MotionEvent.NUM_SAMPLE_DATA, |
| 510 | (lastNumPointers-index-1)*MotionEvent.NUM_SAMPLE_DATA); |
| 511 | mLastNumPointers--; |
| 512 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 513 | } |
| 514 | |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 515 | MotionEvent generateAbsMotion(InputDevice device, long curTime, |
| 516 | long curTimeNano, Display display, int orientation, |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 517 | int metaState) { |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 518 | |
Dianne Hackborn | dc95372 | 2009-10-19 11:24:39 -0700 | [diff] [blame] | 519 | if (mSkipLastPointers) { |
| 520 | mSkipLastPointers = false; |
| 521 | mLastNumPointers = 0; |
| 522 | } |
| 523 | |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame] | 524 | if (mNextNumPointers <= 0 && mLastNumPointers <= 0) { |
| 525 | return null; |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 526 | } |
| 527 | |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame] | 528 | final int lastNumPointers = mLastNumPointers; |
| 529 | final int nextNumPointers = mNextNumPointers; |
| 530 | if (mNextNumPointers > MAX_POINTERS) { |
| 531 | Log.w("InputDevice", "Number of pointers " + mNextNumPointers |
| 532 | + " exceeded maximum of " + MAX_POINTERS); |
| 533 | mNextNumPointers = MAX_POINTERS; |
| 534 | } |
| 535 | |
| 536 | int upOrDownPointer = updatePointerIdentifiers(); |
| 537 | |
| 538 | final float[] reportData = mReportData; |
Dianne Hackborn | 1411d1c | 2009-10-12 23:21:18 -0700 | [diff] [blame] | 539 | final int[] rawData; |
| 540 | if (KeyInputQueue.BAD_TOUCH_HACK) { |
| 541 | rawData = generateAveragedData(upOrDownPointer, lastNumPointers, |
| 542 | nextNumPointers); |
| 543 | } else { |
| 544 | rawData = mLastData; |
| 545 | } |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame] | 546 | |
| 547 | final int numPointers = mLastNumPointers; |
| 548 | |
| 549 | if (DEBUG_POINTERS) Log.v("InputDevice", "Processing " |
| 550 | + numPointers + " pointers (going from " + lastNumPointers |
| 551 | + " to " + nextNumPointers + ")"); |
| 552 | |
| 553 | for (int i=0; i<numPointers; i++) { |
| 554 | final int pos = i * MotionEvent.NUM_SAMPLE_DATA; |
| 555 | reportData[pos + MotionEvent.SAMPLE_X] = rawData[pos + MotionEvent.SAMPLE_X]; |
| 556 | reportData[pos + MotionEvent.SAMPLE_Y] = rawData[pos + MotionEvent.SAMPLE_Y]; |
| 557 | reportData[pos + MotionEvent.SAMPLE_PRESSURE] = rawData[pos + MotionEvent.SAMPLE_PRESSURE]; |
| 558 | reportData[pos + MotionEvent.SAMPLE_SIZE] = rawData[pos + MotionEvent.SAMPLE_SIZE]; |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 559 | } |
| 560 | |
| 561 | int action; |
| 562 | int edgeFlags = 0; |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame] | 563 | if (nextNumPointers != lastNumPointers) { |
| 564 | if (nextNumPointers > lastNumPointers) { |
| 565 | if (lastNumPointers == 0) { |
| 566 | action = MotionEvent.ACTION_DOWN; |
| 567 | mDownTime = curTime; |
| 568 | } else { |
| 569 | action = MotionEvent.ACTION_POINTER_DOWN |
| 570 | | (upOrDownPointer << MotionEvent.ACTION_POINTER_ID_SHIFT); |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 571 | } |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 572 | } else { |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame] | 573 | if (numPointers == 1) { |
| 574 | action = MotionEvent.ACTION_UP; |
| 575 | } else { |
| 576 | action = MotionEvent.ACTION_POINTER_UP |
| 577 | | (upOrDownPointer << MotionEvent.ACTION_POINTER_ID_SHIFT); |
| 578 | } |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 579 | } |
| 580 | currentMove = null; |
| 581 | } else { |
| 582 | action = MotionEvent.ACTION_MOVE; |
| 583 | } |
| 584 | |
| 585 | final int dispW = display.getWidth()-1; |
| 586 | final int dispH = display.getHeight()-1; |
| 587 | int w = dispW; |
| 588 | int h = dispH; |
| 589 | if (orientation == Surface.ROTATION_90 |
| 590 | || orientation == Surface.ROTATION_270) { |
| 591 | int tmp = w; |
| 592 | w = h; |
| 593 | h = tmp; |
| 594 | } |
| 595 | |
| 596 | final AbsoluteInfo absX = device.absX; |
| 597 | final AbsoluteInfo absY = device.absY; |
| 598 | final AbsoluteInfo absPressure = device.absPressure; |
| 599 | final AbsoluteInfo absSize = device.absSize; |
| 600 | for (int i=0; i<numPointers; i++) { |
| 601 | final int j = i * MotionEvent.NUM_SAMPLE_DATA; |
| 602 | |
| 603 | if (absX != null) { |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame] | 604 | reportData[j + MotionEvent.SAMPLE_X] = |
| 605 | ((reportData[j + MotionEvent.SAMPLE_X]-absX.minValue) |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 606 | / absX.range) * w; |
| 607 | } |
| 608 | if (absY != null) { |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame] | 609 | reportData[j + MotionEvent.SAMPLE_Y] = |
| 610 | ((reportData[j + MotionEvent.SAMPLE_Y]-absY.minValue) |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 611 | / absY.range) * h; |
| 612 | } |
| 613 | if (absPressure != null) { |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame] | 614 | reportData[j + MotionEvent.SAMPLE_PRESSURE] = |
| 615 | ((reportData[j + MotionEvent.SAMPLE_PRESSURE]-absPressure.minValue) |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 616 | / (float)absPressure.range); |
| 617 | } |
| 618 | if (absSize != null) { |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame] | 619 | reportData[j + MotionEvent.SAMPLE_SIZE] = |
| 620 | ((reportData[j + MotionEvent.SAMPLE_SIZE]-absSize.minValue) |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 621 | / (float)absSize.range); |
| 622 | } |
| 623 | |
| 624 | switch (orientation) { |
| 625 | case Surface.ROTATION_90: { |
Dianne Hackborn | 2a2b3443 | 2009-08-12 17:13:55 -0700 | [diff] [blame] | 626 | final float temp = reportData[j + MotionEvent.SAMPLE_X]; |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame] | 627 | reportData[j + MotionEvent.SAMPLE_X] = reportData[j + MotionEvent.SAMPLE_Y]; |
| 628 | reportData[j + MotionEvent.SAMPLE_Y] = w-temp; |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 629 | break; |
| 630 | } |
| 631 | case Surface.ROTATION_180: { |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame] | 632 | reportData[j + MotionEvent.SAMPLE_X] = w-reportData[j + MotionEvent.SAMPLE_X]; |
| 633 | reportData[j + MotionEvent.SAMPLE_Y] = h-reportData[j + MotionEvent.SAMPLE_Y]; |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 634 | break; |
| 635 | } |
| 636 | case Surface.ROTATION_270: { |
Dianne Hackborn | 2a2b3443 | 2009-08-12 17:13:55 -0700 | [diff] [blame] | 637 | final float temp = reportData[j + MotionEvent.SAMPLE_X]; |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame] | 638 | reportData[j + MotionEvent.SAMPLE_X] = h-reportData[j + MotionEvent.SAMPLE_Y]; |
| 639 | reportData[j + MotionEvent.SAMPLE_Y] = temp; |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 640 | break; |
| 641 | } |
| 642 | } |
| 643 | } |
| 644 | |
| 645 | // We only consider the first pointer when computing the edge |
| 646 | // flags, since they are global to the event. |
Dianne Hackborn | ddca3ee | 2009-07-23 19:01:31 -0700 | [diff] [blame] | 647 | if (action == MotionEvent.ACTION_DOWN) { |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame] | 648 | if (reportData[MotionEvent.SAMPLE_X] <= 0) { |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 649 | edgeFlags |= MotionEvent.EDGE_LEFT; |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame] | 650 | } else if (reportData[MotionEvent.SAMPLE_X] >= dispW) { |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 651 | edgeFlags |= MotionEvent.EDGE_RIGHT; |
| 652 | } |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame] | 653 | if (reportData[MotionEvent.SAMPLE_Y] <= 0) { |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 654 | edgeFlags |= MotionEvent.EDGE_TOP; |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame] | 655 | } else if (reportData[MotionEvent.SAMPLE_Y] >= dispH) { |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 656 | edgeFlags |= MotionEvent.EDGE_BOTTOM; |
| 657 | } |
| 658 | } |
| 659 | |
| 660 | if (currentMove != null) { |
| 661 | if (false) Log.i("InputDevice", "Adding batch x=" |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame] | 662 | + reportData[MotionEvent.SAMPLE_X] |
| 663 | + " y=" + reportData[MotionEvent.SAMPLE_Y] |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 664 | + " to " + currentMove); |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame] | 665 | currentMove.addBatch(curTime, reportData, metaState); |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 666 | if (WindowManagerPolicy.WATCH_POINTER) { |
| 667 | Log.i("KeyInputQueue", "Updating: " + currentMove); |
| 668 | } |
| 669 | return null; |
| 670 | } |
| 671 | |
| 672 | MotionEvent me = MotionEvent.obtainNano(mDownTime, curTime, |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame] | 673 | curTimeNano, action, numPointers, mPointerIds, reportData, |
| 674 | metaState, xPrecision, yPrecision, device.id, edgeFlags); |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 675 | if (action == MotionEvent.ACTION_MOVE) { |
| 676 | currentMove = me; |
| 677 | } |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame] | 678 | |
| 679 | if (nextNumPointers < lastNumPointers) { |
| 680 | removeOldPointer(upOrDownPointer); |
| 681 | } |
| 682 | |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 683 | return me; |
| 684 | } |
| 685 | |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame] | 686 | boolean hasMore() { |
| 687 | return mLastNumPointers != mNextNumPointers; |
| 688 | } |
| 689 | |
| 690 | void finish() { |
| 691 | mNextNumPointers = mAddingPointerOffset = 0; |
| 692 | mNextData[MotionEvent.SAMPLE_PRESSURE] = 0; |
| 693 | } |
| 694 | |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 695 | MotionEvent generateRelMotion(InputDevice device, long curTime, |
| 696 | long curTimeNano, int orientation, int metaState) { |
| 697 | |
| 698 | final float[] scaled = mReportData; |
| 699 | |
| 700 | // For now we only support 1 pointer with relative motions. |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame] | 701 | scaled[MotionEvent.SAMPLE_X] = mNextData[MotionEvent.SAMPLE_X]; |
| 702 | scaled[MotionEvent.SAMPLE_Y] = mNextData[MotionEvent.SAMPLE_Y]; |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 703 | scaled[MotionEvent.SAMPLE_PRESSURE] = 1.0f; |
| 704 | scaled[MotionEvent.SAMPLE_SIZE] = 0; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 705 | int edgeFlags = 0; |
Dianne Hackborn | e3dd884 | 2009-07-14 12:06:54 -0700 | [diff] [blame] | 706 | |
| 707 | int action; |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame] | 708 | if (mNextNumPointers != mLastNumPointers) { |
| 709 | mNextData[MotionEvent.SAMPLE_X] = |
| 710 | mNextData[MotionEvent.SAMPLE_Y] = 0; |
| 711 | if (mNextNumPointers > 0 && mLastNumPointers == 0) { |
Dianne Hackborn | e3dd884 | 2009-07-14 12:06:54 -0700 | [diff] [blame] | 712 | action = MotionEvent.ACTION_DOWN; |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 713 | mDownTime = curTime; |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame] | 714 | } else if (mNextNumPointers == 0) { |
Dianne Hackborn | e3dd884 | 2009-07-14 12:06:54 -0700 | [diff] [blame] | 715 | action = MotionEvent.ACTION_UP; |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame] | 716 | } else { |
| 717 | action = MotionEvent.ACTION_MOVE; |
Dianne Hackborn | e3dd884 | 2009-07-14 12:06:54 -0700 | [diff] [blame] | 718 | } |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame] | 719 | mLastNumPointers = mNextNumPointers; |
Dianne Hackborn | e3dd884 | 2009-07-14 12:06:54 -0700 | [diff] [blame] | 720 | currentMove = null; |
| 721 | } else { |
| 722 | action = MotionEvent.ACTION_MOVE; |
| 723 | } |
| 724 | |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 725 | scaled[MotionEvent.SAMPLE_X] *= xMoveScale; |
| 726 | scaled[MotionEvent.SAMPLE_Y] *= yMoveScale; |
| 727 | switch (orientation) { |
| 728 | case Surface.ROTATION_90: { |
| 729 | final float temp = scaled[MotionEvent.SAMPLE_X]; |
| 730 | scaled[MotionEvent.SAMPLE_X] = scaled[MotionEvent.SAMPLE_Y]; |
| 731 | scaled[MotionEvent.SAMPLE_Y] = -temp; |
| 732 | break; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 733 | } |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 734 | case Surface.ROTATION_180: { |
| 735 | scaled[MotionEvent.SAMPLE_X] = -scaled[MotionEvent.SAMPLE_X]; |
| 736 | scaled[MotionEvent.SAMPLE_Y] = -scaled[MotionEvent.SAMPLE_Y]; |
| 737 | break; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 738 | } |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 739 | case Surface.ROTATION_270: { |
| 740 | final float temp = scaled[MotionEvent.SAMPLE_X]; |
| 741 | scaled[MotionEvent.SAMPLE_X] = -scaled[MotionEvent.SAMPLE_Y]; |
| 742 | scaled[MotionEvent.SAMPLE_Y] = temp; |
| 743 | break; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 744 | } |
| 745 | } |
| 746 | |
Dianne Hackborn | e3dd884 | 2009-07-14 12:06:54 -0700 | [diff] [blame] | 747 | if (currentMove != null) { |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 748 | if (false) Log.i("InputDevice", "Adding batch x=" |
| 749 | + scaled[MotionEvent.SAMPLE_X] |
| 750 | + " y=" + scaled[MotionEvent.SAMPLE_Y] |
| 751 | + " to " + currentMove); |
| 752 | currentMove.addBatch(curTime, scaled, metaState); |
Dianne Hackborn | e3dd884 | 2009-07-14 12:06:54 -0700 | [diff] [blame] | 753 | if (WindowManagerPolicy.WATCH_POINTER) { |
| 754 | Log.i("KeyInputQueue", "Updating: " + currentMove); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 755 | } |
Dianne Hackborn | e3dd884 | 2009-07-14 12:06:54 -0700 | [diff] [blame] | 756 | return null; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 757 | } |
Dianne Hackborn | e3dd884 | 2009-07-14 12:06:54 -0700 | [diff] [blame] | 758 | |
Dianne Hackborn | 9822d2b | 2009-07-20 17:33:15 -0700 | [diff] [blame] | 759 | MotionEvent me = MotionEvent.obtainNano(mDownTime, curTime, |
Dianne Hackborn | 0dd7cb4 | 2009-08-04 05:49:43 -0700 | [diff] [blame] | 760 | curTimeNano, action, 1, mPointerIds, scaled, metaState, |
Dianne Hackborn | e3dd884 | 2009-07-14 12:06:54 -0700 | [diff] [blame] | 761 | xPrecision, yPrecision, device.id, edgeFlags); |
| 762 | if (action == MotionEvent.ACTION_MOVE) { |
| 763 | currentMove = me; |
| 764 | } |
| 765 | return me; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 766 | } |
| 767 | } |
| 768 | |
| 769 | static class AbsoluteInfo { |
| 770 | int minValue; |
| 771 | int maxValue; |
| 772 | int range; |
| 773 | int flat; |
| 774 | int fuzz; |
| 775 | }; |
| 776 | |
| 777 | InputDevice(int _id, int _classes, String _name, |
| 778 | AbsoluteInfo _absX, AbsoluteInfo _absY, |
| 779 | AbsoluteInfo _absPressure, AbsoluteInfo _absSize) { |
| 780 | id = _id; |
| 781 | classes = _classes; |
| 782 | name = _name; |
| 783 | absX = _absX; |
| 784 | absY = _absY; |
| 785 | absPressure = _absPressure; |
| 786 | absSize = _absSize; |
| 787 | } |
| 788 | }; |