CaptureModule.java revision 4de9b72f79fe256766f25497bff44cb5533b7508
1/* 2 * Copyright (C) 2014 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 17package com.android.camera; 18 19import android.app.Activity; 20import android.content.Context; 21import android.content.res.Configuration; 22import android.graphics.Bitmap; 23import android.graphics.Matrix; 24import android.graphics.RectF; 25import android.graphics.SurfaceTexture; 26import android.hardware.Sensor; 27import android.hardware.SensorEvent; 28import android.hardware.SensorEventListener; 29import android.hardware.SensorManager; 30import android.location.Location; 31import android.net.Uri; 32import android.os.Handler; 33import android.os.HandlerThread; 34import android.os.SystemClock; 35import android.provider.MediaStore; 36import android.view.KeyEvent; 37import android.view.OrientationEventListener; 38import android.view.Surface; 39import android.view.TextureView; 40import android.view.View; 41import android.view.View.OnLayoutChangeListener; 42 43import com.android.camera.app.AppController; 44import com.android.camera.app.CameraAppUI; 45import com.android.camera.app.CameraAppUI.BottomBarUISpec; 46import com.android.camera.app.LocationManager; 47import com.android.camera.app.MediaSaver; 48import com.android.camera.debug.DebugPropertyHelper; 49import com.android.camera.debug.Log; 50import com.android.camera.debug.Log.Tag; 51import com.android.camera.hardware.HardwareSpec; 52import com.android.camera.module.ModuleController; 53import com.android.camera.one.OneCamera; 54import com.android.camera.one.OneCamera.AutoFocusState; 55import com.android.camera.one.OneCamera.CaptureReadyCallback; 56import com.android.camera.one.OneCamera.Facing; 57import com.android.camera.one.OneCamera.OpenCallback; 58import com.android.camera.one.OneCamera.PhotoCaptureParameters; 59import com.android.camera.one.OneCamera.PhotoCaptureParameters.Flash; 60import com.android.camera.one.OneCameraManager; 61import com.android.camera.one.Settings3A; 62import com.android.camera.one.v2.OneCameraManagerImpl; 63import com.android.camera.remote.RemoteCameraModule; 64import com.android.camera.session.CaptureSession; 65import com.android.camera.settings.Keys; 66import com.android.camera.settings.SettingsManager; 67import com.android.camera.ui.CountDownView; 68import com.android.camera.ui.PreviewStatusListener; 69import com.android.camera.ui.TouchCoordinate; 70import com.android.camera.util.CameraUtil; 71import com.android.camera.util.GcamHelper; 72import com.android.camera.util.Size; 73import com.android.camera.util.UsageStatistics; 74import com.android.camera2.R; 75import com.android.ex.camera2.portability.CameraAgent.CameraProxy; 76 77import java.io.File; 78import java.util.concurrent.Semaphore; 79import java.util.concurrent.TimeUnit; 80 81/** 82 * New Capture module that is made to support photo and video capture on top of 83 * the OneCamera API, to transparently support GCam. 84 * <p> 85 * This has been a re-write with pieces taken and improved from GCamModule and 86 * PhotoModule, which are to be retired eventually. 87 * <p> 88 * TODO: 89 * <ul> 90 * <li>Server-side logging 91 * <li>Focusing (managed by OneCamera implementations) 92 * <li>Show location dialog on first start 93 * <li>Show resolution dialog on certain devices 94 * <li>Store location 95 * <li>Capture intent 96 * </ul> 97 */ 98public class CaptureModule extends CameraModule 99 implements MediaSaver.QueueListener, 100 ModuleController, 101 CountDownView.OnCountDownStatusListener, 102 OneCamera.PictureCallback, 103 OneCamera.FocusStateListener, 104 OneCamera.ReadyStateChangedListener, 105 PreviewStatusListener.PreviewAreaChangedListener, 106 RemoteCameraModule, 107 SensorEventListener, 108 SettingsManager.OnSettingChangedListener, 109 TextureView.SurfaceTextureListener { 110 111 /** 112 * Called on layout changes. 113 */ 114 private final OnLayoutChangeListener mLayoutListener = new OnLayoutChangeListener() { 115 @Override 116 public void onLayoutChange(View v, int left, int top, int right, int bottom, int oldLeft, 117 int oldTop, int oldRight, int oldBottom) { 118 int width = right - left; 119 int height = bottom - top; 120 updatePreviewTransform(width, height, false); 121 } 122 }; 123 124 /** 125 * Hide AF target UI element. 126 */ 127 Runnable mHideAutoFocusTargetRunnable = new Runnable() { 128 @Override 129 public void run() { 130 // For debug UI off, showAutoFocusSuccess() just hides the AF UI. 131 if (mFocusedAtEnd) { 132 mUI.showAutoFocusSuccess(); 133 } else { 134 mUI.showAutoFocusFailure(); 135 } 136 } 137 }; 138 139 private static final Tag TAG = new Tag("CaptureModule"); 140 private static final String PHOTO_MODULE_STRING_ID = "PhotoModule"; 141 /** Enable additional debug output. */ 142 private static final boolean DEBUG = true; 143 144 /** Timeout for camera open/close operations. */ 145 private static final int CAMERA_OPEN_CLOSE_TIMEOUT_MILLIS = 2500; 146 147 /** System Properties switch to enable debugging focus UI. */ 148 private static final boolean CAPTURE_DEBUG_UI = DebugPropertyHelper.showCaptureDebugUI(); 149 150 private final Object mDimensionLock = new Object(); 151 152 /** 153 * Sticky Gcam mode is when this module's sole purpose it to be the Gcam 154 * mode. If true, the device uses {@link PhotoModule} for normal picture 155 * taking. 156 */ 157 private final boolean mStickyGcamCamera; 158 159 /** 160 * Lock for race conditions in the SurfaceTextureListener callbacks. 161 */ 162 private final Object mSurfaceLock = new Object(); 163 /** Controller giving us access to other services. */ 164 private final AppController mAppController; 165 /** The applications settings manager. */ 166 private final SettingsManager mSettingsManager; 167 /** Application context. */ 168 private final Context mContext; 169 private CaptureModuleUI mUI; 170 /** The camera manager used to open cameras. */ 171 private OneCameraManager mCameraManager; 172 /** The currently opened camera device, or null if the camera is closed. */ 173 private OneCamera mCamera; 174 /** Held when opening or closing the camera. */ 175 private final Semaphore mCameraOpenCloseLock = new Semaphore(1); 176 /** The direction the currently opened camera is facing to. */ 177 private Facing mCameraFacing = Facing.BACK; 178 /** Whether HDR is currently enabled. */ 179 private boolean mHdrEnabled = false; 180 181 /** The texture used to render the preview in. */ 182 private SurfaceTexture mPreviewTexture; 183 184 /** State by the module state machine. */ 185 private static enum ModuleState { 186 IDLE, 187 WATCH_FOR_NEXT_FRAME_AFTER_PREVIEW_STARTED, 188 UPDATE_TRANSFORM_ON_NEXT_SURFACE_TEXTURE_UPDATE, 189 } 190 191 /** The current state of the module. */ 192 private ModuleState mState = ModuleState.IDLE; 193 /** Current orientation of the device. */ 194 private int mOrientation = OrientationEventListener.ORIENTATION_UNKNOWN; 195 /** Current zoom value. */ 196 private float mZoomValue = 1f; 197 /** Current duration of capture timer in seconds. */ 198 private int mTimerDuration; 199 // TODO: Get image capture intent UI working. 200 private boolean mIsImageCaptureIntent; 201 202 /** True if in AF tap-to-focus sequence. */ 203 private boolean mTapToFocusWaitForActiveScan = false; 204 /** Records beginning frame of each AF scan. */ 205 private long mAutoFocusScanStartFrame = -1; 206 /** Records beginning time of each AF scan in uptimeMillis. */ 207 private long mAutoFocusScanStartTime; 208 209 /** Persistence of Tap to Focus target UI after scan complete. */ 210 private static final int FOCUS_HOLD_UI_MILLIS = 0; 211 /** Worst case persistence of TTF target UI. */ 212 private static final int FOCUS_UI_TIMEOUT_MILLIS = 2000; 213 /** Results from last tap to focus scan */ 214 private boolean mFocusedAtEnd; 215 /** Sensor manager we use to get the heading of the device. */ 216 private SensorManager mSensorManager; 217 /** Accelerometer. */ 218 private Sensor mAccelerometerSensor; 219 /** Compass. */ 220 private Sensor mMagneticSensor; 221 222 /** Accelerometer data. */ 223 private final float[] mGData = new float[3]; 224 /** Magnetic sensor data. */ 225 private final float[] mMData = new float[3]; 226 /** Temporary rotation matrix. */ 227 private final float[] mR = new float[16]; 228 /** Current compass heading. */ 229 private int mHeading = -1; 230 231 /** Used to fetch and embed the location into captured images. */ 232 private LocationManager mLocationManager; 233 /** Plays sounds for countdown timer. */ 234 private SoundPlayer mCountdownSoundPlayer; 235 236 /** Whether the module is paused right now. */ 237 private boolean mPaused; 238 239 /** Main thread handler. */ 240 private Handler mMainHandler; 241 /** Handler thread for camera-related operations. */ 242 private Handler mCameraHandler; 243 244 /** Current display rotation in degrees. */ 245 private int mDisplayRotation; 246 /** Current screen width in pixels. */ 247 private int mScreenWidth; 248 /** Current screen height in pixels. */ 249 private int mScreenHeight; 250 /** Current width of preview frames from camera. */ 251 private int mPreviewBufferWidth; 252 /** Current height of preview frames from camera.. */ 253 private int mPreviewBufferHeight; 254 /** Area used by preview. */ 255 RectF mPreviewArea; 256 257 /** The current preview transformation matrix. */ 258 private Matrix mPreviewTranformationMatrix = new Matrix(); 259 /** TODO: This is N5 specific. */ 260 public static final float FULLSCREEN_ASPECT_RATIO = 16 / 9f; 261 262 /** A directory to store debug information in during development. */ 263 private final File mDebugDataDir; 264 265 /** CLEAN UP START */ 266 // private boolean mFirstLayout; 267 // private int[] mTargetFPSRanges; 268 // private float mZoomValue; 269 // private int mSensorOrientation; 270 // private int mLensFacing; 271 // private String mFlashMode; 272 /** CLEAN UP END */ 273 274 public CaptureModule(AppController appController) { 275 this(appController, false); 276 } 277 278 /** Constructs a new capture module. */ 279 public CaptureModule(AppController appController, boolean stickyHdr) { 280 super(appController); 281 mAppController = appController; 282 mContext = mAppController.getAndroidContext(); 283 mSettingsManager = mAppController.getSettingsManager(); 284 mSettingsManager.addListener(this); 285 mDebugDataDir = mContext.getExternalCacheDir(); 286 mStickyGcamCamera = stickyHdr; 287 } 288 289 @Override 290 public void init(CameraActivity activity, boolean isSecureCamera, boolean isCaptureIntent) { 291 Log.d(TAG, "init"); 292 mMainHandler = new Handler(activity.getMainLooper()); 293 HandlerThread thread = new HandlerThread("CaptureModule.mCameraHandler"); 294 thread.start(); 295 mCameraHandler = new Handler(thread.getLooper()); 296 mCameraManager = mAppController.getCameraManager(); 297 mLocationManager = mAppController.getLocationManager(); 298 mDisplayRotation = CameraUtil.getDisplayRotation(mContext); 299 mCameraFacing = getFacingFromCameraId(mSettingsManager.getInteger( 300 mAppController.getModuleScope(), 301 Keys.KEY_CAMERA_ID)); 302 mUI = new CaptureModuleUI(activity, this, mAppController.getModuleLayoutRoot(), 303 mLayoutListener); 304 mAppController.setPreviewStatusListener(mUI); 305 mPreviewTexture = mAppController.getCameraAppUI().getSurfaceTexture(); 306 mSensorManager = (SensorManager) (mContext.getSystemService(Context.SENSOR_SERVICE)); 307 mAccelerometerSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER); 308 mMagneticSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD); 309 mCountdownSoundPlayer = new SoundPlayer(mContext); 310 311 String action = activity.getIntent().getAction(); 312 mIsImageCaptureIntent = (MediaStore.ACTION_IMAGE_CAPTURE.equals(action) 313 || CameraActivity.ACTION_IMAGE_CAPTURE_SECURE.equals(action)); 314 View cancelButton = activity.findViewById(R.id.shutter_cancel_button); 315 cancelButton.setOnClickListener(new View.OnClickListener() { 316 @Override 317 public void onClick(View view) { 318 cancelCountDown(); 319 } 320 }); 321 } 322 323 @Override 324 public void onShutterButtonFocus(boolean pressed) { 325 // TODO Auto-generated method stub 326 } 327 328 @Override 329 public void onShutterCoordinate(TouchCoordinate coord) { 330 // TODO Auto-generated method stub 331 } 332 333 @Override 334 public void onShutterButtonClick() { 335 if (mCamera == null) { 336 return; 337 } 338 339 int countDownDuration = mSettingsManager 340 .getInteger(SettingsManager.SCOPE_GLOBAL, Keys.KEY_COUNTDOWN_DURATION); 341 mTimerDuration = countDownDuration; 342 if (countDownDuration > 0) { 343 // Start count down. 344 mAppController.getCameraAppUI().transitionToCancel(); 345 mAppController.getCameraAppUI().hideModeOptions(); 346 mUI.setCountdownFinishedListener(this); 347 mUI.startCountdown(countDownDuration); 348 // Will take picture later via listener callback. 349 } else { 350 takePictureNow(); 351 } 352 } 353 354 private void takePictureNow() { 355 Location location = mLocationManager.getCurrentLocation(); 356 357 // Set up the capture session. 358 long sessionTime = System.currentTimeMillis(); 359 String title = CameraUtil.createJpegName(sessionTime); 360 CaptureSession session = getServices().getCaptureSessionManager() 361 .createNewSession(title, sessionTime, location); 362 363 // Set up the parameters for this capture. 364 PhotoCaptureParameters params = new PhotoCaptureParameters(); 365 params.title = title; 366 params.callback = this; 367 params.orientation = getOrientation(); 368 params.flashMode = getFlashModeFromSettings(); 369 params.heading = mHeading; 370 params.debugDataFolder = mDebugDataDir; 371 params.location = location; 372 373 mCamera.takePicture(params, session); 374 } 375 376 @Override 377 public void onCountDownFinished() { 378 if (mIsImageCaptureIntent) { 379 mAppController.getCameraAppUI().transitionToIntentReviewLayout(); 380 } else { 381 mAppController.getCameraAppUI().transitionToCapture(); 382 } 383 mAppController.getCameraAppUI().showModeOptions(); 384 if (mPaused) { 385 return; 386 } 387 takePictureNow(); 388 } 389 390 @Override 391 public void onRemainingSecondsChanged(int remainingSeconds) { 392 if (remainingSeconds == 1) { 393 mCountdownSoundPlayer.play(R.raw.timer_final_second, 0.6f); 394 } else if (remainingSeconds == 2 || remainingSeconds == 3) { 395 mCountdownSoundPlayer.play(R.raw.timer_increment, 0.6f); 396 } 397 } 398 399 private void cancelCountDown() { 400 if (mUI.isCountingDown()) { 401 // Cancel on-going countdown. 402 mUI.cancelCountDown(); 403 } 404 mAppController.getCameraAppUI().showModeOptions(); 405 mAppController.getCameraAppUI().transitionToCapture(); 406 } 407 408 @Override 409 public void onQuickExpose() { 410 mMainHandler.post(new Runnable() { 411 @Override 412 public void run() { 413 // Starts the short version of the capture animation UI. 414 mAppController.startPreCaptureAnimation(true); 415 } 416 }); 417 } 418 419 @Override 420 public void onPreviewAreaChanged(RectF previewArea) { 421 mPreviewArea = previewArea; 422 mUI.onPreviewAreaChanged(previewArea); 423 // mUI.updatePreviewAreaRect(previewArea); 424 mUI.positionProgressOverlay(previewArea); 425 } 426 427 @Override 428 public void onSensorChanged(SensorEvent event) { 429 // This is literally the same as the GCamModule implementation. 430 int type = event.sensor.getType(); 431 float[] data; 432 if (type == Sensor.TYPE_ACCELEROMETER) { 433 data = mGData; 434 } else if (type == Sensor.TYPE_MAGNETIC_FIELD) { 435 data = mMData; 436 } else { 437 Log.w(TAG, String.format("Unexpected sensor type %s", event.sensor.getName())); 438 return; 439 } 440 for (int i = 0; i < 3; i++) { 441 data[i] = event.values[i]; 442 } 443 float[] orientation = new float[3]; 444 SensorManager.getRotationMatrix(mR, null, mGData, mMData); 445 SensorManager.getOrientation(mR, orientation); 446 mHeading = (int) (orientation[0] * 180f / Math.PI) % 360; 447 448 if (mHeading < 0) { 449 mHeading += 360; 450 } 451 } 452 453 @Override 454 public void onAccuracyChanged(Sensor sensor, int accuracy) { 455 // TODO Auto-generated method stub 456 } 457 458 @Override 459 public void onQueueStatus(boolean full) { 460 // TODO Auto-generated method stub 461 } 462 463 @Override 464 public void onRemoteShutterPress() { 465 // TODO: Check whether shutter is enabled. 466 onShutterButtonClick(); 467 } 468 469 @Override 470 public void onSurfaceTextureAvailable(final SurfaceTexture surface, int width, int height) { 471 Log.d(TAG, "onSurfaceTextureAvailable"); 472 // Force to re-apply transform matrix here as a workaround for 473 // b/11168275 474 updatePreviewTransform(width, height, true); 475 initSurface(surface); 476 } 477 478 public void initSurface(final SurfaceTexture surface) { 479 mPreviewTexture = surface; 480 closeCamera(); 481 openCameraAndStartPreview(); 482 } 483 484 @Override 485 public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) { 486 Log.d(TAG, "onSurfaceTextureSizeChanged"); 487 resetDefaultBufferSize(); 488 } 489 490 @Override 491 public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) { 492 Log.d(TAG, "onSurfaceTextureDestroyed"); 493 mPreviewTexture = null; 494 closeCamera(); 495 return true; 496 } 497 498 @Override 499 public void onSurfaceTextureUpdated(SurfaceTexture surface) { 500 if (mState == ModuleState.UPDATE_TRANSFORM_ON_NEXT_SURFACE_TEXTURE_UPDATE) { 501 Log.d(TAG, "onSurfaceTextureUpdated --> updatePreviewTransform"); 502 mState = ModuleState.IDLE; 503 CameraAppUI appUI = mAppController.getCameraAppUI(); 504 updatePreviewTransform(appUI.getSurfaceWidth(), appUI.getSurfaceHeight(), true); 505 } 506 } 507 508 @Override 509 public String getModuleStringIdentifier() { 510 return PHOTO_MODULE_STRING_ID; 511 } 512 513 @Override 514 public void resume() { 515 mPaused = false; 516 mAppController.getCameraAppUI().onChangeCamera(); 517 mAppController.addPreviewAreaSizeChangedListener(this); 518 resetDefaultBufferSize(); 519 getServices().getRemoteShutterListener().onModuleReady(this); 520 // TODO: Check if we can really take a photo right now (memory, camera 521 // state, ... ). 522 mAppController.getCameraAppUI().enableModeOptions(); 523 mAppController.setShutterEnabled(true); 524 525 // Get events from the accelerometer and magnetic sensor. 526 if (mAccelerometerSensor != null) { 527 mSensorManager.registerListener(this, mAccelerometerSensor, 528 SensorManager.SENSOR_DELAY_NORMAL); 529 } 530 if (mMagneticSensor != null) { 531 mSensorManager.registerListener(this, mMagneticSensor, 532 SensorManager.SENSOR_DELAY_NORMAL); 533 } 534 mHdrEnabled = mStickyGcamCamera || mAppController.getSettingsManager().getInteger( 535 SettingsManager.SCOPE_GLOBAL, Keys.KEY_CAMERA_HDR_PLUS) == 1; 536 537 // This means we are resuming with an existing preview texture. This 538 // means we will never get the onSurfaceTextureAvailable call. So we 539 // have to open the camera and start the preview here. 540 if (mPreviewTexture != null) { 541 initSurface(mPreviewTexture); 542 } 543 544 mCountdownSoundPlayer.loadSound(R.raw.timer_final_second); 545 mCountdownSoundPlayer.loadSound(R.raw.timer_increment); 546 } 547 548 @Override 549 public void pause() { 550 mPaused = true; 551 cancelCountDown(); 552 resetTextureBufferSize(); 553 closeCamera(); 554 mCountdownSoundPlayer.unloadSound(R.raw.timer_final_second); 555 mCountdownSoundPlayer.unloadSound(R.raw.timer_increment); 556 // Remove delayed resume trigger, if it hasn't been executed yet. 557 mMainHandler.removeCallbacksAndMessages(null); 558 559 // Unregister the sensors. 560 if (mAccelerometerSensor != null) { 561 mSensorManager.unregisterListener(this, mAccelerometerSensor); 562 } 563 if (mMagneticSensor != null) { 564 mSensorManager.unregisterListener(this, mMagneticSensor); 565 } 566 } 567 568 @Override 569 public void destroy() { 570 mCountdownSoundPlayer.release(); 571 mCameraHandler.getLooper().quitSafely(); 572 } 573 574 @Override 575 public void onLayoutOrientationChanged(boolean isLandscape) { 576 Log.d(TAG, "onLayoutOrientationChanged"); 577 } 578 579 @Override 580 public void onOrientationChanged(int orientation) { 581 // We keep the last known orientation. So if the user first orient 582 // the camera then point the camera to floor or sky, we still have 583 // the correct orientation. 584 if (orientation == OrientationEventListener.ORIENTATION_UNKNOWN) { 585 return; 586 } 587 588 // TODO: Document orientation compute logic and unify them in OrientationManagerImpl. 589 // b/17443789 590 // Flip to counter-clockwise orientation. 591 mOrientation = (360 - orientation) % 360; 592 } 593 594 @Override 595 public void onCameraAvailable(CameraProxy cameraProxy) { 596 // Ignore since we manage the camera ourselves until we remove this. 597 } 598 599 @Override 600 public void hardResetSettings(SettingsManager settingsManager) { 601 if (mStickyGcamCamera) { 602 // Sitcky HDR+ mode should hard reset HDR+ to on, and camera back 603 // facing. 604 settingsManager.set(SettingsManager.SCOPE_GLOBAL, Keys.KEY_CAMERA_HDR_PLUS, true); 605 settingsManager.set(mAppController.getModuleScope(), Keys.KEY_CAMERA_ID, 606 getBackFacingCameraId()); 607 } 608 } 609 610 @Override 611 public HardwareSpec getHardwareSpec() { 612 return new HardwareSpec() { 613 @Override 614 public boolean isFrontCameraSupported() { 615 return true; 616 } 617 618 @Override 619 public boolean isHdrSupported() { 620 // TODO: Check if the device has HDR and not HDR+. 621 return false; 622 } 623 624 @Override 625 public boolean isHdrPlusSupported() { 626 return GcamHelper.hasGcamCapture(); 627 } 628 629 @Override 630 public boolean isFlashSupported() { 631 return true; 632 } 633 }; 634 } 635 636 @Override 637 public BottomBarUISpec getBottomBarSpec() { 638 CameraAppUI.BottomBarUISpec bottomBarSpec = new CameraAppUI.BottomBarUISpec(); 639 bottomBarSpec.enableGridLines = true; 640 bottomBarSpec.enableCamera = true; 641 bottomBarSpec.cameraCallback = getCameraCallback(); 642 bottomBarSpec.enableHdr = GcamHelper.hasGcamCapture(); 643 bottomBarSpec.hdrCallback = getHdrButtonCallback(); 644 bottomBarSpec.enableSelfTimer = true; 645 bottomBarSpec.showSelfTimer = true; 646 if (!mHdrEnabled) { 647 bottomBarSpec.enableFlash = true; 648 } 649 // Added to handle case of CaptureModule being used only for Gcam. 650 if (mStickyGcamCamera) { 651 bottomBarSpec.enableFlash = false; 652 } 653 return bottomBarSpec; 654 } 655 656 @Override 657 public boolean isUsingBottomBar() { 658 return true; 659 } 660 661 @Override 662 public boolean onKeyDown(int keyCode, KeyEvent event) { 663 switch (keyCode) { 664 case KeyEvent.KEYCODE_CAMERA: 665 case KeyEvent.KEYCODE_DPAD_CENTER: 666 if (mUI.isCountingDown()) { 667 cancelCountDown(); 668 } else if (event.getRepeatCount() == 0) { 669 onShutterButtonClick(); 670 } 671 return true; 672 case KeyEvent.KEYCODE_VOLUME_UP: 673 case KeyEvent.KEYCODE_VOLUME_DOWN: 674 // Prevent default. 675 return true; 676 } 677 return false; 678 } 679 680 @Override 681 public boolean onKeyUp(int keyCode, KeyEvent event) { 682 switch (keyCode) { 683 case KeyEvent.KEYCODE_VOLUME_UP: 684 case KeyEvent.KEYCODE_VOLUME_DOWN: 685 onShutterButtonClick(); 686 return true; 687 } 688 return false; 689 } 690 691 /** 692 * Focus sequence starts for zone around tap location for single tap. 693 */ 694 @Override 695 public void onSingleTapUp(View view, int x, int y) { 696 Log.v(TAG, "onSingleTapUp x=" + x + " y=" + y); 697 // TODO: This should query actual capability. 698 if (mCameraFacing == Facing.FRONT) { 699 return; 700 } 701 triggerFocusAtScreenCoord(x, y); 702 } 703 704 // TODO: Consider refactoring FocusOverlayManager. 705 // Currently AF state transitions are controlled in OneCameraImpl. 706 // PhotoModule uses FocusOverlayManager which uses API1/portability 707 // logic and coordinates. 708 private void triggerFocusAtScreenCoord(int x, int y) { 709 if (mCamera == null) { 710 // If we receive this after the camera is closed, do nothing. 711 return; 712 } 713 714 mTapToFocusWaitForActiveScan = true; 715 // Show UI immediately even though scan has not started yet. 716 float minEdge = Math.min(mPreviewArea.width(), mPreviewArea.height()); 717 mUI.setAutoFocusTarget(x, y, false, 718 (int) (Settings3A.getAutoFocusRegionWidth() * mZoomValue * minEdge), 719 (int) (Settings3A.getMeteringRegionWidth() * mZoomValue * minEdge)); 720 mUI.showAutoFocusInProgress(); 721 722 // Cancel any scheduled auto focus target UI actions. 723 mMainHandler.removeCallbacks(mHideAutoFocusTargetRunnable); 724 // Timeout in case camera fails to stop (unlikely). 725 mMainHandler.postDelayed(new Runnable() { 726 @Override 727 public void run() { 728 mMainHandler.post(mHideAutoFocusTargetRunnable); 729 } 730 }, FOCUS_UI_TIMEOUT_MILLIS); 731 732 // Normalize coordinates to [0,1] per CameraOne API. 733 float points[] = new float[2]; 734 points[0] = (x - mPreviewArea.left) / mPreviewArea.width(); 735 points[1] = (y - mPreviewArea.top) / mPreviewArea.height(); 736 737 // Rotate coordinates to portrait orientation per CameraOne API. 738 Matrix rotationMatrix = new Matrix(); 739 rotationMatrix.setRotate(mDisplayRotation, 0.5f, 0.5f); 740 rotationMatrix.mapPoints(points); 741 mCamera.triggerFocusAndMeterAtPoint(points[0], points[1]); 742 743 // Log touch (screen coordinates). 744 if (mZoomValue == 1f) { 745 TouchCoordinate touchCoordinate = new TouchCoordinate(x - mPreviewArea.left, 746 y - mPreviewArea.top, mPreviewArea.width(), mPreviewArea.height()); 747 // TODO: Add to logging: duration, rotation. 748 UsageStatistics.instance().tapToFocus(touchCoordinate, null); 749 } 750 } 751 752 /** 753 * Show AF target in center of preview. 754 */ 755 private void setAutoFocusTargetPassive() { 756 float minEdge = Math.min(mPreviewArea.width(), mPreviewArea.height()); 757 mUI.setAutoFocusTarget((int) mPreviewArea.centerX(), (int) mPreviewArea.centerY(), 758 true, 759 (int) (Settings3A.getAutoFocusRegionWidth() * mZoomValue * minEdge), 760 (int) (Settings3A.getMeteringRegionWidth() * mZoomValue * minEdge)); 761 mUI.showAutoFocusInProgress(); 762 } 763 764 /** 765 * Update UI based on AF state changes. 766 */ 767 @Override 768 public void onFocusStatusUpdate(final AutoFocusState state, long frameNumber) { 769 Log.v(TAG, "AF status is state:" + state); 770 771 switch (state) { 772 case PASSIVE_SCAN: 773 mMainHandler.removeCallbacks(mHideAutoFocusTargetRunnable); 774 mMainHandler.post(new Runnable() { 775 @Override 776 public void run() { 777 setAutoFocusTargetPassive(); 778 } 779 }); 780 break; 781 case ACTIVE_SCAN: 782 mTapToFocusWaitForActiveScan = false; 783 break; 784 case PASSIVE_FOCUSED: 785 case PASSIVE_UNFOCUSED: 786 mMainHandler.post(new Runnable() { 787 @Override 788 public void run() { 789 mUI.setPassiveFocusSuccess(state == AutoFocusState.PASSIVE_FOCUSED); 790 } 791 }); 792 break; 793 case ACTIVE_FOCUSED: 794 case ACTIVE_UNFOCUSED: 795 if (!mTapToFocusWaitForActiveScan) { 796 mFocusedAtEnd = state != AutoFocusState.ACTIVE_UNFOCUSED; 797 mMainHandler.removeCallbacks(mHideAutoFocusTargetRunnable); 798 mMainHandler.post(mHideAutoFocusTargetRunnable); 799 } 800 break; 801 } 802 803 if (CAPTURE_DEBUG_UI) { 804 measureAutoFocusScans(state, frameNumber); 805 } 806 } 807 808 private void measureAutoFocusScans(final AutoFocusState state, long frameNumber) { 809 // Log AF scan lengths. 810 boolean passive = false; 811 switch (state) { 812 case PASSIVE_SCAN: 813 case ACTIVE_SCAN: 814 if (mAutoFocusScanStartFrame == -1) { 815 mAutoFocusScanStartFrame = frameNumber; 816 mAutoFocusScanStartTime = SystemClock.uptimeMillis(); 817 } 818 break; 819 case PASSIVE_FOCUSED: 820 case PASSIVE_UNFOCUSED: 821 passive = true; 822 case ACTIVE_FOCUSED: 823 case ACTIVE_UNFOCUSED: 824 if (mAutoFocusScanStartFrame != -1) { 825 long frames = frameNumber - mAutoFocusScanStartFrame; 826 long dt = SystemClock.uptimeMillis() - mAutoFocusScanStartTime; 827 int fps = Math.round(frames * 1000f / dt); 828 String report = String.format("%s scan: fps=%d frames=%d", 829 passive ? "CAF" : "AF", fps, frames); 830 Log.v(TAG, report); 831 mUI.showDebugMessage(String.format("%d / %d", frames, fps)); 832 mAutoFocusScanStartFrame = -1; 833 } 834 break; 835 } 836 } 837 838 @Override 839 public void onReadyStateChanged(boolean readyForCapture) { 840 if (readyForCapture) { 841 mAppController.getCameraAppUI().enableModeOptions(); 842 } 843 mAppController.setShutterEnabled(readyForCapture); 844 } 845 846 @Override 847 public String getPeekAccessibilityString() { 848 return mAppController.getAndroidContext() 849 .getResources().getString(R.string.photo_accessibility_peek); 850 } 851 852 @Override 853 public void onThumbnailResult(Bitmap bitmap) { 854 // TODO 855 } 856 857 @Override 858 public void onPictureTaken(CaptureSession session) { 859 mAppController.getCameraAppUI().enableModeOptions(); 860 } 861 862 @Override 863 public void onPictureSaved(Uri uri) { 864 mAppController.notifyNewMedia(uri); 865 } 866 867 @Override 868 public void onTakePictureProgress(float progress) { 869 mUI.setPictureTakingProgress((int) (progress * 100)); 870 } 871 872 @Override 873 public void onPictureTakenFailed() { 874 } 875 876 @Override 877 public void onSettingChanged(SettingsManager settingsManager, String key) { 878 // TODO Auto-generated method stub 879 } 880 881 /** 882 * Updates the preview transform matrix to adapt to the current preview 883 * width, height, and orientation. 884 */ 885 public void updatePreviewTransform() { 886 int width; 887 int height; 888 synchronized (mDimensionLock) { 889 width = mScreenWidth; 890 height = mScreenHeight; 891 } 892 updatePreviewTransform(width, height); 893 } 894 895 /** 896 * Set zoom value. 897 * 898 * @param zoom Zoom value, must be between 1.0 and mCamera.getMaxZoom(). 899 */ 900 public void setZoom(float zoom) { 901 mZoomValue = zoom; 902 if (mCamera != null) { 903 mCamera.setZoom(zoom); 904 } 905 } 906 907 /** 908 * TODO: Remove this method once we are in pure CaptureModule land. 909 */ 910 private String getBackFacingCameraId() { 911 if (!(mCameraManager instanceof OneCameraManagerImpl)) { 912 throw new IllegalStateException("This should never be called with Camera API V1"); 913 } 914 OneCameraManagerImpl manager = (OneCameraManagerImpl) mCameraManager; 915 return manager.getFirstBackCameraId(); 916 } 917 918 /** 919 * @return Depending on whether we're in sticky-HDR mode or not, return the 920 * proper callback to be used for when the HDR/HDR+ button is 921 * pressed. 922 */ 923 private ButtonManager.ButtonCallback getHdrButtonCallback() { 924 if (mStickyGcamCamera) { 925 return new ButtonManager.ButtonCallback() { 926 @Override 927 public void onStateChanged(int state) { 928 if (mPaused) { 929 return; 930 } 931 if (state == ButtonManager.ON) { 932 throw new IllegalStateException( 933 "Can't leave hdr plus mode if switching to hdr plus mode."); 934 } 935 SettingsManager settingsManager = mAppController.getSettingsManager(); 936 settingsManager.set(mAppController.getModuleScope(), 937 Keys.KEY_REQUEST_RETURN_HDR_PLUS, false); 938 switchToRegularCapture(); 939 } 940 }; 941 } else { 942 return new ButtonManager.ButtonCallback() { 943 @Override 944 public void onStateChanged(int hdrEnabled) { 945 if (mPaused) { 946 return; 947 } 948 Log.d(TAG, "HDR enabled =" + hdrEnabled); 949 mHdrEnabled = hdrEnabled == 1; 950 switchCamera(); 951 } 952 }; 953 } 954 } 955 956 /** 957 * @return Depending on whether we're in sticky-HDR mode or not, this 958 * returns the proper callback to be used for when the camera 959 * (front/back switch) button is pressed. 960 */ 961 private ButtonManager.ButtonCallback getCameraCallback() { 962 if (mStickyGcamCamera) { 963 return new ButtonManager.ButtonCallback() { 964 @Override 965 public void onStateChanged(int state) { 966 if (mPaused) { 967 return; 968 } 969 970 // At the time this callback is fired, the camera id setting 971 // has changed to the desired camera. 972 SettingsManager settingsManager = mAppController.getSettingsManager(); 973 if (Keys.isCameraBackFacing(settingsManager, 974 mAppController.getModuleScope())) { 975 throw new IllegalStateException( 976 "Hdr plus should never be switching from front facing camera."); 977 } 978 979 // Switch to photo mode, but request a return to hdr plus on 980 // switching to back camera again. 981 settingsManager.set(mAppController.getModuleScope(), 982 Keys.KEY_REQUEST_RETURN_HDR_PLUS, true); 983 switchToRegularCapture(); 984 } 985 }; 986 } else { 987 return new ButtonManager.ButtonCallback() { 988 @Override 989 public void onStateChanged(int cameraId) { 990 if (mPaused) { 991 return; 992 } 993 994 // At the time this callback is fired, the camera id 995 // has be set to the desired camera. 996 mSettingsManager.set(mAppController.getModuleScope(), Keys.KEY_CAMERA_ID, 997 cameraId); 998 999 Log.d(TAG, "Start to switch camera. cameraId=" + cameraId); 1000 mCameraFacing = getFacingFromCameraId(cameraId); 1001 switchCamera(); 1002 } 1003 }; 1004 } 1005 } 1006 1007 /** 1008 * Switches to PhotoModule to do regular photo captures. 1009 * <p> 1010 * TODO: Remove this once we use CaptureModule for photo taking. 1011 */ 1012 private void switchToRegularCapture() { 1013 // Turn off HDR+ before switching back to normal photo mode. 1014 SettingsManager settingsManager = mAppController.getSettingsManager(); 1015 settingsManager.set(SettingsManager.SCOPE_GLOBAL, Keys.KEY_CAMERA_HDR_PLUS, false); 1016 1017 // Disable this button to prevent callbacks from this module from firing 1018 // while we are transitioning modules. 1019 ButtonManager buttonManager = mAppController.getButtonManager(); 1020 buttonManager.disableButtonClick(ButtonManager.BUTTON_HDR_PLUS); 1021 mAppController.getCameraAppUI().freezeScreenUntilPreviewReady(); 1022 mAppController.onModeSelected(mContext.getResources().getInteger( 1023 R.integer.camera_mode_photo)); 1024 buttonManager.enableButtonClick(ButtonManager.BUTTON_HDR_PLUS); 1025 } 1026 1027 /** 1028 * Called when the preview started. Informs the app controller and queues a 1029 * transform update when the next preview frame arrives. 1030 */ 1031 private void onPreviewStarted() { 1032 if (mState == ModuleState.WATCH_FOR_NEXT_FRAME_AFTER_PREVIEW_STARTED) { 1033 mState = ModuleState.UPDATE_TRANSFORM_ON_NEXT_SURFACE_TEXTURE_UPDATE; 1034 } 1035 mAppController.onPreviewStarted(); 1036 } 1037 1038 /** 1039 * Update the preview transform based on the new dimensions. Will not force 1040 * an update, if it's not necessary. 1041 */ 1042 private void updatePreviewTransform(int incomingWidth, int incomingHeight) { 1043 updatePreviewTransform(incomingWidth, incomingHeight, false); 1044 } 1045 1046 /*** 1047 * Update the preview transform based on the new dimensions. TODO: Make work 1048 * with all: aspect ratios/resolutions x screens/cameras. 1049 */ 1050 private void updatePreviewTransform(int incomingWidth, int incomingHeight, 1051 boolean forceUpdate) { 1052 Log.d(TAG, "updatePreviewTransform: " + incomingWidth + " x " + incomingHeight); 1053 1054 synchronized (mDimensionLock) { 1055 int incomingRotation = CameraUtil 1056 .getDisplayRotation(mContext); 1057 // Check for an actual change: 1058 if (mScreenHeight == incomingHeight && mScreenWidth == incomingWidth && 1059 incomingRotation == mDisplayRotation && !forceUpdate) { 1060 return; 1061 } 1062 // Update display rotation and dimensions 1063 mDisplayRotation = incomingRotation; 1064 mScreenWidth = incomingWidth; 1065 mScreenHeight = incomingHeight; 1066 updatePreviewBufferDimension(); 1067 1068 mPreviewTranformationMatrix = mAppController.getCameraAppUI().getPreviewTransform( 1069 mPreviewTranformationMatrix); 1070 int width = mScreenWidth; 1071 int height = mScreenHeight; 1072 1073 // Assumptions: 1074 // - Aspect ratio for the sensor buffers is in landscape 1075 // orientation, 1076 // - Dimensions of buffers received are rotated to the natural 1077 // device orientation. 1078 // - The contents of each buffer are rotated by the inverse of 1079 // the display rotation. 1080 // - Surface scales the buffer to fit the current view bounds. 1081 1082 // Get natural orientation and buffer dimensions 1083 int naturalOrientation = CaptureModuleUtil 1084 .getDeviceNaturalOrientation(mContext); 1085 int effectiveWidth = mPreviewBufferWidth; 1086 int effectiveHeight = mPreviewBufferHeight; 1087 1088 if (DEBUG) { 1089 Log.v(TAG, "Rotation: " + mDisplayRotation); 1090 Log.v(TAG, "Screen Width: " + mScreenWidth); 1091 Log.v(TAG, "Screen Height: " + mScreenHeight); 1092 Log.v(TAG, "Buffer width: " + mPreviewBufferWidth); 1093 Log.v(TAG, "Buffer height: " + mPreviewBufferHeight); 1094 Log.v(TAG, "Natural orientation: " + naturalOrientation); 1095 } 1096 1097 // If natural orientation is portrait, rotate the buffer 1098 // dimensions 1099 if (naturalOrientation == Configuration.ORIENTATION_PORTRAIT) { 1100 int temp = effectiveWidth; 1101 effectiveWidth = effectiveHeight; 1102 effectiveHeight = temp; 1103 } 1104 1105 // Find and center view rect and buffer rect 1106 RectF viewRect = new RectF(0, 0, width, height); 1107 RectF bufRect = new RectF(0, 0, effectiveWidth, effectiveHeight); 1108 float centerX = viewRect.centerX(); 1109 float centerY = viewRect.centerY(); 1110 bufRect.offset(centerX - bufRect.centerX(), centerY - bufRect.centerY()); 1111 1112 // Undo ScaleToFit.FILL done by the surface 1113 mPreviewTranformationMatrix.setRectToRect(viewRect, bufRect, Matrix.ScaleToFit.FILL); 1114 1115 // Rotate buffer contents to proper orientation 1116 mPreviewTranformationMatrix.postRotate(getPreviewOrientation(mDisplayRotation), 1117 centerX, centerY); 1118 1119 // TODO: This is probably only working for the N5. Need to test 1120 // on a device like N10 with different sensor orientation. 1121 if ((mDisplayRotation % 180) == 90) { 1122 int temp = effectiveWidth; 1123 effectiveWidth = effectiveHeight; 1124 effectiveHeight = temp; 1125 } 1126 1127 // Scale to fit view, cropping the longest dimension 1128 float scale = 1129 Math.min(width / (float) effectiveWidth, height 1130 / (float) effectiveHeight); 1131 mPreviewTranformationMatrix.postScale(scale, scale, centerX, centerY); 1132 1133 // TODO: Take these quantities from mPreviewArea. 1134 float previewWidth = effectiveWidth * scale; 1135 float previewHeight = effectiveHeight * scale; 1136 float previewCenterX = previewWidth / 2; 1137 float previewCenterY = previewHeight / 2; 1138 mPreviewTranformationMatrix.postTranslate(previewCenterX - centerX, previewCenterY 1139 - centerY); 1140 1141 mAppController.updatePreviewTransform(mPreviewTranformationMatrix); 1142 mAppController.getCameraAppUI().hideLetterboxing(); 1143 // if (mGcamProxy != null) { 1144 // mGcamProxy.postSetAspectRatio(mFinalAspectRatio); 1145 // } 1146 // mUI.updatePreviewAreaRect(new RectF(0, 0, previewWidth, 1147 // previewHeight)); 1148 1149 // TODO: Add face detection. 1150 // Characteristics info = 1151 // mapp.getCameraProvider().getCharacteristics(0); 1152 // mUI.setupFaceDetection(CameraUtil.getDisplayOrientation(incomingRotation, 1153 // info), false); 1154 // updateCamera2FaceBoundTransform(new 1155 // RectF(mEffectiveCropRegion), 1156 // new RectF(0, 0, mBufferWidth, mBufferHeight), 1157 // new RectF(0, 0, previewWidth, previewHeight), getRotation()); 1158 } 1159 } 1160 1161 /** 1162 * Based on the current picture size, selects the best preview dimension and 1163 * stores it in {@link #mPreviewBufferWidth} and 1164 * {@link #mPreviewBufferHeight}. 1165 */ 1166 private void updatePreviewBufferDimension() { 1167 if (mCamera == null) { 1168 return; 1169 } 1170 1171 Size pictureSize = getPictureSizeFromSettings(); 1172 Size previewBufferSize = mCamera.pickPreviewSize(pictureSize, mContext); 1173 mPreviewBufferWidth = previewBufferSize.getWidth(); 1174 mPreviewBufferHeight = previewBufferSize.getHeight(); 1175 } 1176 1177 /** 1178 * Resets the default buffer size to the initially calculated size. 1179 */ 1180 private void resetDefaultBufferSize() { 1181 synchronized (mSurfaceLock) { 1182 if (mPreviewTexture != null) { 1183 mPreviewTexture.setDefaultBufferSize(mPreviewBufferWidth, mPreviewBufferHeight); 1184 } 1185 } 1186 } 1187 1188 /** 1189 * Open camera and start the preview. 1190 */ 1191 private void openCameraAndStartPreview() { 1192 // Only enable HDR on the back camera 1193 boolean useHdr = mHdrEnabled && mCameraFacing == Facing.BACK; 1194 1195 try { 1196 // TODO Given the current design, we cannot guarantee that one of 1197 // CaptureReadyCallback.onSetupFailed or onReadyForCapture will 1198 // be called (see below), so it's possible that 1199 // mCameraOpenCloseLock.release() is never called under extremely 1200 // rare cases. If we leak the lock, this timeout ensures that we at 1201 // least crash so we don't deadlock the app. 1202 if (!mCameraOpenCloseLock.tryAcquire(CAMERA_OPEN_CLOSE_TIMEOUT_MILLIS, TimeUnit.MILLISECONDS)) { 1203 throw new RuntimeException("Time out waiting to acquire camera-open lock."); 1204 } 1205 } catch (InterruptedException e) { 1206 throw new RuntimeException("Interrupted while waiting to acquire camera-open lock.", e); 1207 } 1208 mCameraManager.open(mCameraFacing, useHdr, getPictureSizeFromSettings(), 1209 new OpenCallback() { 1210 @Override 1211 public void onFailure() { 1212 Log.e(TAG, "Could not open camera."); 1213 mCamera = null; 1214 mCameraOpenCloseLock.release(); 1215 mAppController.showErrorAndFinish(R.string.cannot_connect_camera); 1216 } 1217 1218 @Override 1219 public void onCameraClosed() { 1220 mCamera = null; 1221 mCameraOpenCloseLock.release(); 1222 } 1223 1224 @Override 1225 public void onCameraOpened(final OneCamera camera) { 1226 Log.d(TAG, "onCameraOpened: " + camera); 1227 mCamera = camera; 1228 updatePreviewBufferDimension(); 1229 1230 // If the surface texture is not destroyed, it may have 1231 // the last frame lingering. We need to hold off setting 1232 // transform until preview is started. 1233 resetDefaultBufferSize(); 1234 mState = ModuleState.WATCH_FOR_NEXT_FRAME_AFTER_PREVIEW_STARTED; 1235 Log.d(TAG, "starting preview ..."); 1236 1237 // TODO: Consider rolling these two calls into one. 1238 camera.startPreview(new Surface(mPreviewTexture), 1239 new CaptureReadyCallback() { 1240 @Override 1241 public void onSetupFailed() { 1242 // We must release this lock here, before posting 1243 // to the main handler since we may be blocked 1244 // in pause(), getting ready to close the camera. 1245 mCameraOpenCloseLock.release(); 1246 Log.e(TAG, "Could not set up preview."); 1247 mMainHandler.post(new Runnable() { 1248 @Override 1249 public void run() { 1250 if (mCamera == null) { 1251 Log.d(TAG, "Camera closed, aborting."); 1252 return; 1253 } 1254 mCamera.close(null); 1255 mCamera = null; 1256 // TODO: Show an error message and exit. 1257 } 1258 }); 1259 } 1260 1261 @Override 1262 public void onReadyForCapture() { 1263 // We must release this lock here, before posting 1264 // to the main handler since we may be blocked 1265 // in pause(), getting ready to close the camera. 1266 mCameraOpenCloseLock.release(); 1267 mMainHandler.post(new Runnable() { 1268 @Override 1269 public void run() { 1270 Log.d(TAG, "Ready for capture."); 1271 if (mCamera == null) { 1272 Log.d(TAG, "Camera closed, aborting."); 1273 return; 1274 } 1275 onPreviewStarted(); 1276 // Enable zooming after preview has 1277 // started. 1278 mUI.initializeZoom(mCamera.getMaxZoom()); 1279 mCamera.setFocusStateListener(CaptureModule.this); 1280 mCamera.setReadyStateChangedListener(CaptureModule.this); 1281 } 1282 }); 1283 } 1284 }); 1285 } 1286 }, mCameraHandler); 1287 } 1288 1289 private void closeCamera() { 1290 try { 1291 mCameraOpenCloseLock.acquire(); 1292 } catch(InterruptedException e) { 1293 throw new RuntimeException("Interrupted while waiting to acquire camera-open lock.", e); 1294 } 1295 try { 1296 if (mCamera != null) { 1297 mCamera.setFocusStateListener(null); 1298 mCamera.close(null); 1299 mCamera = null; 1300 } 1301 } finally { 1302 mCameraOpenCloseLock.release(); 1303 } 1304 } 1305 1306 private int getOrientation() { 1307 if (mAppController.isAutoRotateScreen()) { 1308 return mDisplayRotation; 1309 } else { 1310 return mOrientation; 1311 } 1312 } 1313 1314 /** 1315 * @return Whether we are resuming from within the lockscreen. 1316 */ 1317 private static boolean isResumeFromLockscreen(Activity activity) { 1318 String action = activity.getIntent().getAction(); 1319 return (MediaStore.INTENT_ACTION_STILL_IMAGE_CAMERA.equals(action) 1320 || MediaStore.INTENT_ACTION_STILL_IMAGE_CAMERA_SECURE.equals(action)); 1321 } 1322 1323 /** 1324 * Re-initialize the camera if e.g. the HDR mode or facing property changed. 1325 */ 1326 private void switchCamera() { 1327 if (mPaused) { 1328 return; 1329 } 1330 cancelCountDown(); 1331 mAppController.freezeScreenUntilPreviewReady(); 1332 initSurface(mPreviewTexture); 1333 1334 // TODO: Un-comment once we have focus back. 1335 // if (mFocusManager != null) { 1336 // mFocusManager.removeMessages(); 1337 // } 1338 // mFocusManager.setMirror(mMirror); 1339 } 1340 1341 private Size getPictureSizeFromSettings() { 1342 String pictureSizeKey = mCameraFacing == Facing.FRONT ? Keys.KEY_PICTURE_SIZE_FRONT 1343 : Keys.KEY_PICTURE_SIZE_BACK; 1344 return mSettingsManager.getSize(SettingsManager.SCOPE_GLOBAL, pictureSizeKey); 1345 } 1346 1347 private int getPreviewOrientation(int deviceOrientationDegrees) { 1348 // Important: Camera2 buffers are already rotated to the natural 1349 // orientation of the device (at least for the back-camera). 1350 1351 // TODO: Remove this hack for the front camera as soon as b/16637957 is 1352 // fixed. 1353 if (mCameraFacing == Facing.FRONT) { 1354 deviceOrientationDegrees += 180; 1355 } 1356 return (360 - deviceOrientationDegrees) % 360; 1357 } 1358 1359 /** 1360 * Returns which way around the camera is facing, based on it's ID. 1361 * <p> 1362 * TODO: This needs to change so that we store the direction directly in the 1363 * settings, rather than a Camera ID. 1364 */ 1365 private static Facing getFacingFromCameraId(int cameraId) { 1366 return cameraId == 1 ? Facing.FRONT : Facing.BACK; 1367 } 1368 1369 private void resetTextureBufferSize() { 1370 // Reset the default buffer sizes on the shared SurfaceTexture 1371 // so they are not scaled for gcam. 1372 // 1373 // According to the documentation for 1374 // SurfaceTexture.setDefaultBufferSize, 1375 // photo and video based image producers (presumably only Camera 1 api), 1376 // override this buffer size. Any module that uses egl to render to a 1377 // SurfaceTexture must have these buffer sizes reset manually. Otherwise 1378 // the SurfaceTexture cannot be transformed by matrix set on the 1379 // TextureView. 1380 if (mPreviewTexture != null) { 1381 mPreviewTexture.setDefaultBufferSize(mAppController.getCameraAppUI().getSurfaceWidth(), 1382 mAppController.getCameraAppUI().getSurfaceHeight()); 1383 } 1384 } 1385 1386 /** 1387 * @return The currently set Flash settings. Defaults to AUTO if the setting 1388 * could not be parsed. 1389 */ 1390 private Flash getFlashModeFromSettings() { 1391 String flashSetting = mSettingsManager.getString(mAppController.getCameraScope(), 1392 Keys.KEY_FLASH_MODE); 1393 try { 1394 return Flash.valueOf(flashSetting.toUpperCase()); 1395 } catch (IllegalArgumentException ex) { 1396 Log.w(TAG, "Could not parse Flash Setting. Defaulting to AUTO."); 1397 return Flash.AUTO; 1398 } 1399 } 1400} 1401