CaptureModule.java revision 961805e8fafa3ef21d1984eeb1429b40df6ffcde
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.provider.MediaStore; 34import android.view.KeyEvent; 35import android.view.OrientationEventListener; 36import android.view.Surface; 37import android.view.TextureView; 38import android.view.View; 39import android.view.View.OnLayoutChangeListener; 40import android.widget.Toast; 41 42import com.android.camera.app.AppController; 43import com.android.camera.app.CameraAppUI; 44import com.android.camera.app.CameraAppUI.BottomBarUISpec; 45import com.android.camera.app.LocationManager; 46import com.android.camera.app.MediaSaver; 47import com.android.camera.debug.DebugPropertyHelper; 48import com.android.camera.debug.Log; 49import com.android.camera.debug.Log.Tag; 50import com.android.camera.hardware.HardwareSpec; 51import com.android.camera.module.ModuleController; 52import com.android.camera.one.OneCamera; 53import com.android.camera.one.OneCamera.AutoFocusState; 54import com.android.camera.one.OneCamera.CaptureReadyCallback; 55import com.android.camera.one.OneCamera.Facing; 56import com.android.camera.one.OneCamera.OpenCallback; 57import com.android.camera.one.OneCamera.PhotoCaptureParameters; 58import com.android.camera.one.OneCamera.PhotoCaptureParameters.Flash; 59import com.android.camera.one.OneCameraManager; 60import com.android.camera.one.Settings3A; 61import com.android.camera.one.v2.OneCameraManagerImpl; 62import com.android.camera.remote.RemoteCameraModule; 63import com.android.camera.session.CaptureSession; 64import com.android.camera.settings.Keys; 65import com.android.camera.settings.SettingsManager; 66import com.android.camera.ui.CountDownView; 67import com.android.camera.ui.PreviewStatusListener; 68import com.android.camera.ui.TouchCoordinate; 69import com.android.camera.util.ApiHelper; 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; 78 79/** 80 * New Capture module that is made to support photo and video capture on top of 81 * the OneCamera API, to transparently support GCam. 82 * <p> 83 * This has been a re-write with pieces taken and improved from GCamModule and 84 * PhotoModule, which are to be retired eventually. 85 * <p> 86 * TODO: 87 * <ul> 88 * <li>Server-side logging 89 * <li>Focusing (managed by OneCamera implementations) 90 * <li>Show location dialog on first start 91 * <li>Show resolution dialog on certain devices 92 * <li>Store location 93 * <li>Capture intent 94 * </ul> 95 */ 96public class CaptureModule extends CameraModule 97 implements MediaSaver.QueueListener, 98 ModuleController, 99 CountDownView.OnCountDownStatusListener, 100 OneCamera.PictureCallback, 101 OneCamera.FocusStateListener, 102 OneCamera.ReadyStateChangedListener, 103 PreviewStatusListener.PreviewAreaChangedListener, 104 RemoteCameraModule, 105 SensorEventListener, 106 SettingsManager.OnSettingChangedListener, 107 TextureView.SurfaceTextureListener { 108 109 /** 110 * Called on layout changes. 111 */ 112 private final OnLayoutChangeListener mLayoutListener = new OnLayoutChangeListener() { 113 @Override 114 public void onLayoutChange(View v, int left, int top, int right, int bottom, int oldLeft, 115 int oldTop, int oldRight, int oldBottom) { 116 int width = right - left; 117 int height = bottom - top; 118 updatePreviewTransform(width, height, false); 119 } 120 }; 121 122 /** 123 * Hide AF target UI element. 124 */ 125 Runnable mHideAutoFocusTargetRunnable = new Runnable() { 126 @Override 127 public void run() { 128 // For debug UI off, showAutoFocusSuccess() just hides the AF UI. 129 if (mFocusedAtEnd) { 130 mUI.showAutoFocusSuccess(); 131 } else { 132 mUI.showAutoFocusFailure(); 133 } 134 } 135 }; 136 137 private static final Tag TAG = new Tag("CaptureModule"); 138 private static final String PHOTO_MODULE_STRING_ID = "PhotoModule"; 139 /** Enable additional debug output. */ 140 private static final boolean DEBUG = true; 141 /** 142 * This is the delay before we execute onResume tasks when coming from the 143 * lock screen, to allow time for onPause to execute. 144 * <p> 145 * TODO: Make sure this value is in sync with what we see on L. 146 */ 147 private static final int ON_RESUME_TASKS_DELAY_MSEC = 20; 148 149 /** System Properties switch to enable debugging focus UI. */ 150 private static final boolean CAPTURE_DEBUG_UI = DebugPropertyHelper.showCaptureDebugUI(); 151 152 private final Object mDimensionLock = new Object(); 153 154 /** 155 * Sticky Gcam mode is when this module's sole purpose it to be the Gcam 156 * mode. If true, the device uses {@link PhotoModule} for normal picture 157 * taking. 158 */ 159 private final boolean mStickyGcamCamera; 160 161 /** 162 * Lock for race conditions in the SurfaceTextureListener callbacks. 163 */ 164 private final Object mSurfaceLock = new Object(); 165 /** Controller giving us access to other services. */ 166 private final AppController mAppController; 167 /** The applications settings manager. */ 168 private final SettingsManager mSettingsManager; 169 /** Application context. */ 170 private final Context mContext; 171 private CaptureModuleUI mUI; 172 /** The camera manager used to open cameras. */ 173 private OneCameraManager mCameraManager; 174 /** The currently opened camera device. */ 175 private OneCamera mCamera; 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; 204 205 /** Persistence of Tap to Focus target UI after scan complete. */ 206 private static final int FOCUS_HOLD_UI_MILLIS = 0; 207 /** Worst case persistence of TTF target UI. */ 208 private static final int FOCUS_UI_TIMEOUT_MILLIS = 2000; 209 /** Results from last tap to focus scan */ 210 private boolean mFocusedAtEnd; 211 /** Sensor manager we use to get the heading of the device. */ 212 private SensorManager mSensorManager; 213 /** Accelerometer. */ 214 private Sensor mAccelerometerSensor; 215 /** Compass. */ 216 private Sensor mMagneticSensor; 217 218 /** Accelerometer data. */ 219 private final float[] mGData = new float[3]; 220 /** Magnetic sensor data. */ 221 private final float[] mMData = new float[3]; 222 /** Temporary rotation matrix. */ 223 private final float[] mR = new float[16]; 224 /** Current compass heading. */ 225 private int mHeading = -1; 226 227 /** Used to fetch and embed the location into captured images. */ 228 private LocationManager mLocationManager; 229 /** Plays sounds for countdown timer. */ 230 private SoundPlayer mCountdownSoundPlayer; 231 232 /** Whether the module is paused right now. */ 233 private boolean mPaused; 234 235 /** Whether this module was resumed from lockscreen capture intent. */ 236 private boolean mIsResumeFromLockScreen = false; 237 238 private final Runnable mResumeTaskRunnable = new Runnable() { 239 @Override 240 public void run() { 241 onResumeTasks(); 242 } 243 }; 244 245 /** Main thread handler. */ 246 private Handler mMainHandler; 247 248 /** Current display rotation in degrees. */ 249 private int mDisplayRotation; 250 /** Current screen width in pixels. */ 251 private int mScreenWidth; 252 /** Current screen height in pixels. */ 253 private int mScreenHeight; 254 /** Current width of preview frames from camera. */ 255 private int mPreviewBufferWidth; 256 /** Current height of preview frames from camera.. */ 257 private int mPreviewBufferHeight; 258 /** Area used by preview. */ 259 RectF mPreviewArea; 260 261 /** The current preview transformation matrix. */ 262 private Matrix mPreviewTranformationMatrix = new Matrix(); 263 /** TODO: This is N5 specific. */ 264 public static final float FULLSCREEN_ASPECT_RATIO = 16 / 9f; 265 266 /** A directory to store debug information in during development. */ 267 private final File mDebugDataDir; 268 269 /** CLEAN UP START */ 270 // private boolean mFirstLayout; 271 // private int[] mTargetFPSRanges; 272 // private float mZoomValue; 273 // private int mSensorOrientation; 274 // private int mLensFacing; 275 // private String mFlashMode; 276 /** CLEAN UP END */ 277 278 public CaptureModule(AppController appController) { 279 this(appController, false); 280 } 281 282 /** Constructs a new capture module. */ 283 public CaptureModule(AppController appController, boolean stickyHdr) { 284 super(appController); 285 mAppController = appController; 286 mContext = mAppController.getAndroidContext(); 287 mSettingsManager = mAppController.getSettingsManager(); 288 mSettingsManager.addListener(this); 289 mDebugDataDir = mContext.getExternalCacheDir(); 290 mStickyGcamCamera = stickyHdr; 291 } 292 293 @Override 294 public void init(CameraActivity activity, boolean isSecureCamera, boolean isCaptureIntent) { 295 Log.d(TAG, "init"); 296 mIsResumeFromLockScreen = isResumeFromLockscreen(activity); 297 mMainHandler = new Handler(activity.getMainLooper()); 298 mCameraManager = mAppController.getCameraManager(); 299 mLocationManager = mAppController.getLocationManager(); 300 mDisplayRotation = CameraUtil.getDisplayRotation(mContext); 301 mCameraFacing = getFacingFromCameraId(mSettingsManager.getInteger( 302 mAppController.getModuleScope(), 303 Keys.KEY_CAMERA_ID)); 304 mUI = new CaptureModuleUI(activity, this, mAppController.getModuleLayoutRoot(), 305 mLayoutListener); 306 mAppController.setPreviewStatusListener(mUI); 307 mPreviewTexture = mAppController.getCameraAppUI().getSurfaceTexture(); 308 mSensorManager = (SensorManager) (mContext.getSystemService(Context.SENSOR_SERVICE)); 309 mAccelerometerSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER); 310 mMagneticSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD); 311 mCountdownSoundPlayer = new SoundPlayer(mContext); 312 313 String action = activity.getIntent().getAction(); 314 mIsImageCaptureIntent = (MediaStore.ACTION_IMAGE_CAPTURE.equals(action) 315 || CameraActivity.ACTION_IMAGE_CAPTURE_SECURE.equals(action)); 316 View cancelButton = activity.findViewById(R.id.shutter_cancel_button); 317 cancelButton.setOnClickListener(new View.OnClickListener() { 318 @Override 319 public void onClick(View view) { 320 cancelCountDown(); 321 } 322 }); 323 } 324 325 @Override 326 public void onShutterButtonFocus(boolean pressed) { 327 // TODO Auto-generated method stub 328 } 329 330 @Override 331 public void onShutterCoordinate(TouchCoordinate coord) { 332 // TODO Auto-generated method stub 333 } 334 335 @Override 336 public void onShutterButtonClick() { 337 if (mCamera == null) { 338 return; 339 } 340 341 int countDownDuration = mSettingsManager 342 .getInteger(SettingsManager.SCOPE_GLOBAL, Keys.KEY_COUNTDOWN_DURATION); 343 mTimerDuration = countDownDuration; 344 if (countDownDuration > 0) { 345 // Start count down. 346 mAppController.getCameraAppUI().transitionToCancel(); 347 mAppController.getCameraAppUI().hideModeOptions(); 348 mUI.setCountdownFinishedListener(this); 349 mUI.startCountdown(countDownDuration); 350 // Will take picture later via listener callback. 351 } else { 352 takePictureNow(); 353 } 354 } 355 356 private void takePictureNow() { 357 Location location = mLocationManager.getCurrentLocation(); 358 359 // Set up the capture session. 360 long sessionTime = System.currentTimeMillis(); 361 String title = CameraUtil.createJpegName(sessionTime); 362 CaptureSession session = getServices().getCaptureSessionManager() 363 .createNewSession(title, sessionTime, location); 364 365 // Set up the parameters for this capture. 366 PhotoCaptureParameters params = new PhotoCaptureParameters(); 367 params.title = title; 368 params.callback = this; 369 params.orientation = getOrientation(); 370 params.flashMode = getFlashModeFromSettings(); 371 params.heading = mHeading; 372 params.debugDataFolder = mDebugDataDir; 373 params.location = location; 374 375 mCamera.takePicture(params, session); 376 } 377 378 @Override 379 public void onCountDownFinished() { 380 if (mIsImageCaptureIntent) { 381 mAppController.getCameraAppUI().transitionToIntentReviewLayout(); 382 } else { 383 mAppController.getCameraAppUI().transitionToCapture(); 384 } 385 mAppController.getCameraAppUI().showModeOptions(); 386 if (mPaused) { 387 return; 388 } 389 takePictureNow(); 390 } 391 392 @Override 393 public void onRemainingSecondsChanged(int remainingSeconds){ 394 if (remainingSeconds == 1) { 395 mCountdownSoundPlayer.play(R.raw.beep_twice, 0.6f); 396 } else if (remainingSeconds == 2 || remainingSeconds == 3) { 397 mCountdownSoundPlayer.play(R.raw.beep_once, 0.6f); 398 } 399 } 400 401 private void cancelCountDown() { 402 if (mUI.isCountingDown()) { 403 // Cancel on-going countdown. 404 mUI.cancelCountDown(); 405 } 406 mAppController.getCameraAppUI().showModeOptions(); 407 mAppController.getCameraAppUI().transitionToCapture(); 408 } 409 410 @Override 411 public void onPreviewAreaChanged(RectF previewArea) { 412 mPreviewArea = previewArea; 413 mUI.onPreviewAreaChanged(previewArea); 414 // mUI.updatePreviewAreaRect(previewArea); 415 mUI.positionProgressOverlay(previewArea); 416 } 417 418 @Override 419 public void onSensorChanged(SensorEvent event) { 420 // This is literally the same as the GCamModule implementation. 421 int type = event.sensor.getType(); 422 float[] data; 423 if (type == Sensor.TYPE_ACCELEROMETER) { 424 data = mGData; 425 } else if (type == Sensor.TYPE_MAGNETIC_FIELD) { 426 data = mMData; 427 } else { 428 Log.w(TAG, String.format("Unexpected sensor type %s", event.sensor.getName())); 429 return; 430 } 431 for (int i = 0; i < 3; i++) { 432 data[i] = event.values[i]; 433 } 434 float[] orientation = new float[3]; 435 SensorManager.getRotationMatrix(mR, null, mGData, mMData); 436 SensorManager.getOrientation(mR, orientation); 437 mHeading = (int) (orientation[0] * 180f / Math.PI) % 360; 438 439 if (mHeading < 0) { 440 mHeading += 360; 441 } 442 } 443 444 @Override 445 public void onAccuracyChanged(Sensor sensor, int accuracy) { 446 // TODO Auto-generated method stub 447 } 448 449 @Override 450 public void onQueueStatus(boolean full) { 451 // TODO Auto-generated method stub 452 } 453 454 @Override 455 public void onRemoteShutterPress() { 456 // TODO: Check whether shutter is enabled. 457 onShutterButtonClick(); 458 } 459 460 @Override 461 public void onSurfaceTextureAvailable(final SurfaceTexture surface, int width, int height) { 462 Log.d(TAG, "onSurfaceTextureAvailable"); 463 // Force to re-apply transform matrix here as a workaround for 464 // b/11168275 465 updatePreviewTransform(width, height, true); 466 initSurface(surface); 467 } 468 469 public void initSurface(final SurfaceTexture surface) { 470 mPreviewTexture = surface; 471 closeCamera(); 472 openCameraAndStartPreview(); 473 } 474 475 @Override 476 public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) { 477 Log.d(TAG, "onSurfaceTextureSizeChanged"); 478 resetDefaultBufferSize(); 479 } 480 481 @Override 482 public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) { 483 Log.d(TAG, "onSurfaceTextureDestroyed"); 484 mPreviewTexture = null; 485 closeCamera(); 486 return true; 487 } 488 489 @Override 490 public void onSurfaceTextureUpdated(SurfaceTexture surface) { 491 if (mState == ModuleState.UPDATE_TRANSFORM_ON_NEXT_SURFACE_TEXTURE_UPDATE) { 492 Log.d(TAG, "onSurfaceTextureUpdated --> updatePreviewTransform"); 493 mState = ModuleState.IDLE; 494 CameraAppUI appUI = mAppController.getCameraAppUI(); 495 updatePreviewTransform(appUI.getSurfaceWidth(), appUI.getSurfaceHeight(), true); 496 } 497 } 498 499 @Override 500 public String getModuleStringIdentifier() { 501 return PHOTO_MODULE_STRING_ID; 502 } 503 504 @Override 505 public void resume() { 506 // Add delay on resume from lock screen only, in order to to speed up 507 // the onResume --> onPause --> onResume cycle from lock screen. 508 // Don't do always because letting go of thread can cause delay. 509 if (mIsResumeFromLockScreen) { 510 Log.v(TAG, "Delayng onResumeTasks from lock screen. " + System.currentTimeMillis()); 511 // Note: onPauseAfterSuper() will delete this runnable, so we will 512 // at most have 1 copy queued up. 513 mMainHandler.postDelayed(mResumeTaskRunnable, ON_RESUME_TASKS_DELAY_MSEC); 514 } else { 515 onResumeTasks(); 516 } 517 } 518 519 private void onResumeTasks() { 520 Log.d(TAG, "onResumeTasks + " + System.currentTimeMillis()); 521 mPaused = false; 522 mAppController.getCameraAppUI().onChangeCamera(); 523 mAppController.addPreviewAreaSizeChangedListener(this); 524 resetDefaultBufferSize(); 525 getServices().getRemoteShutterListener().onModuleReady(this); 526 // TODO: Check if we can really take a photo right now (memory, camera 527 // state, ... ). 528 mAppController.getCameraAppUI().enableModeOptions(); 529 mAppController.setShutterEnabled(true); 530 531 // TODO: Remove once Gcam is properly tuned on Shamu and ready for 532 // quality feedback. 533 if (mStickyGcamCamera && ApiHelper.IS_NEXUS_6) { 534 Toast.makeText(mContext, 535 "Shamu HDR+ still in tuning, don't file image quality issues yet", 536 Toast.LENGTH_SHORT).show(); 537 } 538 // Get events from the accelerometer and magnetic sensor. 539 if (mAccelerometerSensor != null) { 540 mSensorManager.registerListener(this, mAccelerometerSensor, 541 SensorManager.SENSOR_DELAY_NORMAL); 542 } 543 if (mMagneticSensor != null) { 544 mSensorManager.registerListener(this, mMagneticSensor, 545 SensorManager.SENSOR_DELAY_NORMAL); 546 } 547 mHdrEnabled = mStickyGcamCamera || mAppController.getSettingsManager().getInteger( 548 SettingsManager.SCOPE_GLOBAL, Keys.KEY_CAMERA_HDR_PLUS) == 1; 549 550 // This means we are resuming with an existing preview texture. This 551 // means we will never get the onSurfaceTextureAvailable call. So we 552 // have to open the camera and start the preview here. 553 if (mPreviewTexture != null) { 554 initSurface(mPreviewTexture); 555 } 556 557 mCountdownSoundPlayer.loadSound(R.raw.beep_once); 558 mCountdownSoundPlayer.loadSound(R.raw.beep_twice); 559 } 560 561 @Override 562 public void pause() { 563 mPaused = true; 564 cancelCountDown(); 565 resetTextureBufferSize(); 566 closeCamera(); 567 mCountdownSoundPlayer.unloadSound(R.raw.beep_once); 568 mCountdownSoundPlayer.unloadSound(R.raw.beep_twice); 569 // Remove delayed resume trigger, if it hasn't been executed yet. 570 mMainHandler.removeCallbacksAndMessages(null); 571 572 // Unregister the sensors. 573 if (mAccelerometerSensor != null) { 574 mSensorManager.unregisterListener(this, mAccelerometerSensor); 575 } 576 if (mMagneticSensor != null) { 577 mSensorManager.unregisterListener(this, mMagneticSensor); 578 } 579 } 580 581 @Override 582 public void destroy() { 583 mCountdownSoundPlayer.release(); 584 } 585 586 @Override 587 public void onLayoutOrientationChanged(boolean isLandscape) { 588 Log.d(TAG, "onLayoutOrientationChanged"); 589 } 590 591 @Override 592 public void onOrientationChanged(int orientation) { 593 // We keep the last known orientation. So if the user first orient 594 // the camera then point the camera to floor or sky, we still have 595 // the correct orientation. 596 if (orientation == OrientationEventListener.ORIENTATION_UNKNOWN) { 597 return; 598 } 599 mOrientation = CameraUtil.roundOrientation(orientation, mOrientation); 600 } 601 602 @Override 603 public void onCameraAvailable(CameraProxy cameraProxy) { 604 // Ignore since we manage the camera ourselves until we remove this. 605 } 606 607 @Override 608 public void hardResetSettings(SettingsManager settingsManager) { 609 if (mStickyGcamCamera) { 610 // Sitcky HDR+ mode should hard reset HDR+ to on, and camera back 611 // facing. 612 settingsManager.set(SettingsManager.SCOPE_GLOBAL, Keys.KEY_CAMERA_HDR_PLUS, true); 613 settingsManager.set(mAppController.getModuleScope(), Keys.KEY_CAMERA_ID, 614 getBackFacingCameraId()); 615 } 616 } 617 618 @Override 619 public HardwareSpec getHardwareSpec() { 620 return new HardwareSpec() { 621 @Override 622 public boolean isFrontCameraSupported() { 623 return true; 624 } 625 626 @Override 627 public boolean isHdrSupported() { 628 // TODO: Check if the device has HDR and not HDR+. 629 return false; 630 } 631 632 @Override 633 public boolean isHdrPlusSupported() { 634 return GcamHelper.hasGcamCapture(); 635 } 636 637 @Override 638 public boolean isFlashSupported() { 639 return true; 640 } 641 }; 642 } 643 644 @Override 645 public BottomBarUISpec getBottomBarSpec() { 646 CameraAppUI.BottomBarUISpec bottomBarSpec = new CameraAppUI.BottomBarUISpec(); 647 bottomBarSpec.enableGridLines = true; 648 bottomBarSpec.enableCamera = true; 649 bottomBarSpec.cameraCallback = getCameraCallback(); 650 bottomBarSpec.enableHdr = GcamHelper.hasGcamCapture(); 651 bottomBarSpec.hdrCallback = getHdrButtonCallback(); 652 bottomBarSpec.enableSelfTimer = true; 653 bottomBarSpec.showSelfTimer = true; 654 if (!mHdrEnabled) { 655 bottomBarSpec.enableFlash = true; 656 } 657 return bottomBarSpec; 658 } 659 660 @Override 661 public boolean isUsingBottomBar() { 662 return true; 663 } 664 665 @Override 666 public boolean onKeyDown(int keyCode, KeyEvent event) { 667 switch (keyCode) { 668 case KeyEvent.KEYCODE_CAMERA: 669 case KeyEvent.KEYCODE_DPAD_CENTER: 670 if (mUI.isCountingDown()) { 671 cancelCountDown(); 672 } else if (event.getRepeatCount() == 0) { 673 onShutterButtonClick(); 674 } 675 return true; 676 case KeyEvent.KEYCODE_VOLUME_UP: 677 case KeyEvent.KEYCODE_VOLUME_DOWN: 678 // Prevent default. 679 return true; 680 } 681 return false; 682 } 683 684 @Override 685 public boolean onKeyUp(int keyCode, KeyEvent event) { 686 switch (keyCode) { 687 case KeyEvent.KEYCODE_VOLUME_UP: 688 case KeyEvent.KEYCODE_VOLUME_DOWN: 689 onShutterButtonClick(); 690 return true; 691 } 692 return false; 693 } 694 695 /** 696 * Focus sequence starts for zone around tap location for single tap. 697 */ 698 @Override 699 public void onSingleTapUp(View view, int x, int y) { 700 Log.v(TAG, "onSingleTapUp x=" + x + " y=" + y); 701 // TODO: This should query actual capability. 702 if (mCameraFacing == Facing.FRONT) { 703 return; 704 } 705 triggerFocusAtScreenCoord(x, y); 706 } 707 708 // TODO: Consider refactoring FocusOverlayManager. 709 // Currently AF state transitions are controlled in OneCameraImpl. 710 // PhotoModule uses FocusOverlayManager which uses API1/portability 711 // logic and coordinates. 712 private void triggerFocusAtScreenCoord(int x, int y) { 713 mTapToFocusWaitForActiveScan = true; 714 // Show UI immediately even though scan has not started yet. 715 float minEdge = Math.min(mPreviewArea.width(), mPreviewArea.height()); 716 mUI.setAutoFocusTarget(x, y, false, 717 (int) (Settings3A.getAutoFocusRegionWidth() * mZoomValue * minEdge), 718 (int) (Settings3A.getMeteringRegionWidth() * mZoomValue * minEdge)); 719 mUI.showAutoFocusInProgress(); 720 721 // Cancel any scheduled auto focus target UI actions. 722 mMainHandler.removeCallbacks(mHideAutoFocusTargetRunnable); 723 // Timeout in case camera fails to stop (unlikely). 724 mMainHandler.postDelayed(new Runnable() { 725 @Override 726 public void run() { 727 mMainHandler.post(mHideAutoFocusTargetRunnable); 728 } 729 }, FOCUS_UI_TIMEOUT_MILLIS); 730 731 // Normalize coordinates to [0,1] per CameraOne API. 732 float points[] = new float[2]; 733 points[0] = (x - mPreviewArea.left) / mPreviewArea.width(); 734 points[1] = (y - mPreviewArea.top) / mPreviewArea.height(); 735 736 // Rotate coordinates to portrait orientation per CameraOne API. 737 Matrix rotationMatrix = new Matrix(); 738 rotationMatrix.setRotate(mDisplayRotation, 0.5f, 0.5f); 739 rotationMatrix.mapPoints(points); 740 mCamera.triggerFocusAndMeterAtPoint(points[0], points[1]); 741 742 // Log touch (screen coordinates). 743 if (mZoomValue == 1f) { 744 TouchCoordinate touchCoordinate = new TouchCoordinate(x - mPreviewArea.left, 745 y - mPreviewArea.top, mPreviewArea.width(), mPreviewArea.height()); 746 // TODO: Add to logging: duration, rotation. 747 UsageStatistics.instance().tapToFocus(touchCoordinate, null); 748 } 749 } 750 751 /** 752 * Show AF target in center of preview. 753 */ 754 private void setAutoFocusTargetPassive() { 755 float minEdge = Math.min(mPreviewArea.width(), mPreviewArea.height()); 756 mUI.setAutoFocusTarget((int) mPreviewArea.centerX(), (int) mPreviewArea.centerY(), 757 true, 758 (int) (Settings3A.getAutoFocusRegionWidth() * mZoomValue * minEdge), 759 (int) (Settings3A.getMeteringRegionWidth() * mZoomValue * minEdge)); 760 } 761 762 /** 763 * Update UI based on AF state changes. 764 */ 765 @Override 766 public void onFocusStatusUpdate(final AutoFocusState state) { 767 Log.v(TAG, "AF status is state:" + state); 768 769 switch (state) { 770 case PASSIVE_SCAN: 771 mMainHandler.removeCallbacks(mHideAutoFocusTargetRunnable); 772 mMainHandler.post(new Runnable() { 773 @Override 774 public void run() { 775 setAutoFocusTargetPassive(); 776 mUI.showAutoFocusInProgress(); 777 } 778 }); 779 break; 780 case ACTIVE_SCAN: 781 mTapToFocusWaitForActiveScan = false; 782 break; 783 case PASSIVE_FOCUSED: 784 case PASSIVE_UNFOCUSED: 785 mMainHandler.post(new Runnable() { 786 @Override 787 public void run() { 788 setAutoFocusTargetPassive(); 789 mMainHandler.post(mHideAutoFocusTargetRunnable); 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 } 803 804 @Override 805 public void onReadyStateChanged(boolean readyForCapture) { 806 if (readyForCapture) { 807 mAppController.getCameraAppUI().enableModeOptions(); 808 } 809 mAppController.setShutterEnabled(readyForCapture); 810 } 811 812 @Override 813 public String getPeekAccessibilityString() { 814 return mAppController.getAndroidContext() 815 .getResources().getString(R.string.photo_accessibility_peek); 816 } 817 818 @Override 819 public void onThumbnailResult(Bitmap bitmap) { 820 // TODO 821 } 822 823 @Override 824 public void onPictureTaken(CaptureSession session) { 825 mAppController.getCameraAppUI().enableModeOptions(); 826 mAppController.getCameraAppUI().setShutterButtonEnabled(true); 827 } 828 829 @Override 830 public void onPictureSaved(Uri uri) { 831 mAppController.notifyNewMedia(uri); 832 } 833 834 @Override 835 public void onTakePictureProgress(float progress) { 836 mUI.setPictureTakingProgress((int) (progress * 100)); 837 } 838 839 @Override 840 public void onPictureTakenFailed() { 841 } 842 843 @Override 844 public void onSettingChanged(SettingsManager settingsManager, String key) { 845 // TODO Auto-generated method stub 846 } 847 848 /** 849 * Updates the preview transform matrix to adapt to the current preview 850 * width, height, and orientation. 851 */ 852 public void updatePreviewTransform() { 853 int width; 854 int height; 855 synchronized (mDimensionLock) { 856 width = mScreenWidth; 857 height = mScreenHeight; 858 } 859 updatePreviewTransform(width, height); 860 } 861 862 /** 863 * Set zoom value. 864 * 865 * @param zoom Zoom value, must be between 1.0 and mCamera.getMaxZoom(). 866 */ 867 public void setZoom(float zoom) { 868 mZoomValue = zoom; 869 if (mCamera != null) { 870 mCamera.setZoom(zoom); 871 } 872 } 873 874 /** 875 * TODO: Remove this method once we are in pure CaptureModule land. 876 */ 877 private String getBackFacingCameraId() { 878 if (!(mCameraManager instanceof OneCameraManagerImpl)) { 879 throw new IllegalStateException("This should never be called with Camera API V1"); 880 } 881 OneCameraManagerImpl manager = (OneCameraManagerImpl) mCameraManager; 882 return manager.getFirstBackCameraId(); 883 } 884 885 /** 886 * @return Depending on whether we're in sticky-HDR mode or not, return the 887 * proper callback to be used for when the HDR/HDR+ button is 888 * pressed. 889 */ 890 private ButtonManager.ButtonCallback getHdrButtonCallback() { 891 if (mStickyGcamCamera) { 892 return new ButtonManager.ButtonCallback() { 893 @Override 894 public void onStateChanged(int state) { 895 if (mPaused) { 896 return; 897 } 898 if (state == ButtonManager.ON) { 899 throw new IllegalStateException( 900 "Can't leave hdr plus mode if switching to hdr plus mode."); 901 } 902 SettingsManager settingsManager = mAppController.getSettingsManager(); 903 settingsManager.set(mAppController.getModuleScope(), 904 Keys.KEY_REQUEST_RETURN_HDR_PLUS, false); 905 switchToRegularCapture(); 906 } 907 }; 908 } else { 909 return new ButtonManager.ButtonCallback() { 910 @Override 911 public void onStateChanged(int hdrEnabled) { 912 if (mPaused) { 913 return; 914 } 915 Log.d(TAG, "HDR enabled =" + hdrEnabled); 916 mHdrEnabled = hdrEnabled == 1; 917 switchCamera(); 918 } 919 }; 920 } 921 } 922 923 /** 924 * @return Depending on whether we're in sticky-HDR mode or not, this 925 * returns the proper callback to be used for when the camera 926 * (front/back switch) button is pressed. 927 */ 928 private ButtonManager.ButtonCallback getCameraCallback() { 929 if (mStickyGcamCamera) { 930 return new ButtonManager.ButtonCallback() { 931 @Override 932 public void onStateChanged(int state) { 933 if (mPaused) { 934 return; 935 } 936 937 // At the time this callback is fired, the camera id setting 938 // has changed to the desired camera. 939 SettingsManager settingsManager = mAppController.getSettingsManager(); 940 if (Keys.isCameraBackFacing(settingsManager, 941 mAppController.getModuleScope())) { 942 throw new IllegalStateException( 943 "Hdr plus should never be switching from front facing camera."); 944 } 945 946 // Switch to photo mode, but request a return to hdr plus on 947 // switching to back camera again. 948 settingsManager.set(mAppController.getModuleScope(), 949 Keys.KEY_REQUEST_RETURN_HDR_PLUS, true); 950 switchToRegularCapture(); 951 } 952 }; 953 } else { 954 return new ButtonManager.ButtonCallback() { 955 @Override 956 public void onStateChanged(int cameraId) { 957 if (mPaused) { 958 return; 959 } 960 961 // At the time this callback is fired, the camera id 962 // has be set to the desired camera. 963 mSettingsManager.set(mAppController.getModuleScope(), Keys.KEY_CAMERA_ID, 964 cameraId); 965 966 Log.d(TAG, "Start to switch camera. cameraId=" + cameraId); 967 mCameraFacing = getFacingFromCameraId(cameraId); 968 switchCamera(); 969 } 970 }; 971 } 972 } 973 974 /** 975 * Switches to PhotoModule to do regular photo captures. 976 * <p> 977 * TODO: Remove this once we use CaptureModule for photo taking. 978 */ 979 private void switchToRegularCapture() { 980 // Turn off HDR+ before switching back to normal photo mode. 981 SettingsManager settingsManager = mAppController.getSettingsManager(); 982 settingsManager.set(SettingsManager.SCOPE_GLOBAL, Keys.KEY_CAMERA_HDR_PLUS, false); 983 984 // Disable this button to prevent callbacks from this module from firing 985 // while we are transitioning modules. 986 ButtonManager buttonManager = mAppController.getButtonManager(); 987 buttonManager.disableButtonClick(ButtonManager.BUTTON_HDR_PLUS); 988 mAppController.getCameraAppUI().freezeScreenUntilPreviewReady(); 989 mAppController.onModeSelected(mContext.getResources().getInteger( 990 R.integer.camera_mode_photo)); 991 buttonManager.enableButtonClick(ButtonManager.BUTTON_HDR_PLUS); 992 } 993 994 /** 995 * Called when the preview started. Informs the app controller and queues a 996 * transform update when the next preview frame arrives. 997 */ 998 private void onPreviewStarted() { 999 if (mState == ModuleState.WATCH_FOR_NEXT_FRAME_AFTER_PREVIEW_STARTED) { 1000 mState = ModuleState.UPDATE_TRANSFORM_ON_NEXT_SURFACE_TEXTURE_UPDATE; 1001 } 1002 mAppController.onPreviewStarted(); 1003 } 1004 1005 /** 1006 * Update the preview transform based on the new dimensions. Will not force 1007 * an update, if it's not necessary. 1008 */ 1009 private void updatePreviewTransform(int incomingWidth, int incomingHeight) { 1010 updatePreviewTransform(incomingWidth, incomingHeight, false); 1011 } 1012 1013 /*** 1014 * Update the preview transform based on the new dimensions. TODO: Make work 1015 * with all: aspect ratios/resolutions x screens/cameras. 1016 */ 1017 private void updatePreviewTransform(int incomingWidth, int incomingHeight, 1018 boolean forceUpdate) { 1019 Log.d(TAG, "updatePreviewTransform: " + incomingWidth + " x " + incomingHeight); 1020 1021 synchronized (mDimensionLock) { 1022 int incomingRotation = CameraUtil 1023 .getDisplayRotation(mContext); 1024 // Check for an actual change: 1025 if (mScreenHeight == incomingHeight && mScreenWidth == incomingWidth && 1026 incomingRotation == mDisplayRotation && !forceUpdate) { 1027 return; 1028 } 1029 // Update display rotation and dimensions 1030 mDisplayRotation = incomingRotation; 1031 mScreenWidth = incomingWidth; 1032 mScreenHeight = incomingHeight; 1033 updatePreviewBufferDimension(); 1034 1035 mPreviewTranformationMatrix = mAppController.getCameraAppUI().getPreviewTransform( 1036 mPreviewTranformationMatrix); 1037 int width = mScreenWidth; 1038 int height = mScreenHeight; 1039 1040 // Assumptions: 1041 // - Aspect ratio for the sensor buffers is in landscape 1042 // orientation, 1043 // - Dimensions of buffers received are rotated to the natural 1044 // device orientation. 1045 // - The contents of each buffer are rotated by the inverse of 1046 // the display rotation. 1047 // - Surface scales the buffer to fit the current view bounds. 1048 1049 // Get natural orientation and buffer dimensions 1050 int naturalOrientation = CaptureModuleUtil 1051 .getDeviceNaturalOrientation(mContext); 1052 int effectiveWidth = mPreviewBufferWidth; 1053 int effectiveHeight = mPreviewBufferHeight; 1054 1055 if (DEBUG) { 1056 Log.v(TAG, "Rotation: " + mDisplayRotation); 1057 Log.v(TAG, "Screen Width: " + mScreenWidth); 1058 Log.v(TAG, "Screen Height: " + mScreenHeight); 1059 Log.v(TAG, "Buffer width: " + mPreviewBufferWidth); 1060 Log.v(TAG, "Buffer height: " + mPreviewBufferHeight); 1061 Log.v(TAG, "Natural orientation: " + naturalOrientation); 1062 } 1063 1064 // If natural orientation is portrait, rotate the buffer 1065 // dimensions 1066 if (naturalOrientation == Configuration.ORIENTATION_PORTRAIT) { 1067 int temp = effectiveWidth; 1068 effectiveWidth = effectiveHeight; 1069 effectiveHeight = temp; 1070 } 1071 1072 // Find and center view rect and buffer rect 1073 RectF viewRect = new RectF(0, 0, width, height); 1074 RectF bufRect = new RectF(0, 0, effectiveWidth, effectiveHeight); 1075 float centerX = viewRect.centerX(); 1076 float centerY = viewRect.centerY(); 1077 bufRect.offset(centerX - bufRect.centerX(), centerY - bufRect.centerY()); 1078 1079 // Undo ScaleToFit.FILL done by the surface 1080 mPreviewTranformationMatrix.setRectToRect(viewRect, bufRect, Matrix.ScaleToFit.FILL); 1081 1082 // Rotate buffer contents to proper orientation 1083 mPreviewTranformationMatrix.postRotate(getPreviewOrientation(mDisplayRotation), 1084 centerX, centerY); 1085 1086 // TODO: This is probably only working for the N5. Need to test 1087 // on a device like N10 with different sensor orientation. 1088 if ((mDisplayRotation % 180) == 90) { 1089 int temp = effectiveWidth; 1090 effectiveWidth = effectiveHeight; 1091 effectiveHeight = temp; 1092 } 1093 1094 // Scale to fit view, cropping the longest dimension 1095 float scale = 1096 Math.min(width / (float) effectiveWidth, height 1097 / (float) effectiveHeight); 1098 mPreviewTranformationMatrix.postScale(scale, scale, centerX, centerY); 1099 1100 // TODO: Take these quantities from mPreviewArea. 1101 float previewWidth = effectiveWidth * scale; 1102 float previewHeight = effectiveHeight * scale; 1103 float previewCenterX = previewWidth / 2; 1104 float previewCenterY = previewHeight / 2; 1105 mPreviewTranformationMatrix.postTranslate(previewCenterX - centerX, previewCenterY 1106 - centerY); 1107 1108 mAppController.updatePreviewTransform(mPreviewTranformationMatrix); 1109 mAppController.getCameraAppUI().hideLetterboxing(); 1110 // if (mGcamProxy != null) { 1111 // mGcamProxy.postSetAspectRatio(mFinalAspectRatio); 1112 // } 1113 // mUI.updatePreviewAreaRect(new RectF(0, 0, previewWidth, 1114 // previewHeight)); 1115 1116 // TODO: Add face detection. 1117 // Characteristics info = 1118 // mapp.getCameraProvider().getCharacteristics(0); 1119 // mUI.setupFaceDetection(CameraUtil.getDisplayOrientation(incomingRotation, 1120 // info), false); 1121 // updateCamera2FaceBoundTransform(new 1122 // RectF(mEffectiveCropRegion), 1123 // new RectF(0, 0, mBufferWidth, mBufferHeight), 1124 // new RectF(0, 0, previewWidth, previewHeight), getRotation()); 1125 } 1126 } 1127 1128 /** 1129 * Based on the current picture size, selects the best preview dimension and 1130 * stores it in {@link #mPreviewBufferWidth} and 1131 * {@link #mPreviewBufferHeight}. 1132 */ 1133 private void updatePreviewBufferDimension() { 1134 if (mCamera == null) { 1135 return; 1136 } 1137 1138 Size pictureSize = getPictureSizeFromSettings(); 1139 Size previewBufferSize = mCamera.pickPreviewSize(pictureSize, mContext); 1140 mPreviewBufferWidth = previewBufferSize.getWidth(); 1141 mPreviewBufferHeight = previewBufferSize.getHeight(); 1142 } 1143 1144 /** 1145 * Resets the default buffer size to the initially calculated size. 1146 */ 1147 private void resetDefaultBufferSize() { 1148 synchronized (mSurfaceLock) { 1149 if (mPreviewTexture != null) { 1150 mPreviewTexture.setDefaultBufferSize(mPreviewBufferWidth, mPreviewBufferHeight); 1151 } 1152 } 1153 } 1154 1155 /** 1156 * Open camera and start the preview. 1157 */ 1158 private void openCameraAndStartPreview() { 1159 // Only enable HDR on the back camera 1160 boolean useHdr = mHdrEnabled && mCameraFacing == Facing.BACK; 1161 mCameraManager.open(mCameraFacing, useHdr, getPictureSizeFromSettings(), 1162 new OpenCallback() { 1163 @Override 1164 public void onFailure() { 1165 Log.e(TAG, "Could not open camera."); 1166 mCamera = null; 1167 mAppController.showErrorAndFinish(R.string.cannot_connect_camera); 1168 } 1169 1170 @Override 1171 public void onCameraOpened(final OneCamera camera) { 1172 Log.d(TAG, "onCameraOpened: " + camera); 1173 mCamera = camera; 1174 updatePreviewBufferDimension(); 1175 1176 // If the surface texture is not destroyed, it may have 1177 // the last frame lingering. We need to hold off setting 1178 // transform until preview is started. 1179 resetDefaultBufferSize(); 1180 mState = ModuleState.WATCH_FOR_NEXT_FRAME_AFTER_PREVIEW_STARTED; 1181 Log.d(TAG, "starting preview ..."); 1182 1183 // TODO: Consider rolling these two calls into one. 1184 camera.startPreview(new Surface(mPreviewTexture), 1185 new CaptureReadyCallback() { 1186 @Override 1187 public void onSetupFailed() { 1188 Log.e(TAG, "Could not set up preview."); 1189 mCamera.close(null); 1190 mCamera = null; 1191 // TODO: Show an error message and exit. 1192 } 1193 1194 @Override 1195 public void onReadyForCapture() { 1196 Log.d(TAG, "Ready for capture."); 1197 onPreviewStarted(); 1198 // Enable zooming after preview has 1199 // started. 1200 mUI.initializeZoom(mCamera.getMaxZoom()); 1201 mCamera.setFocusStateListener(CaptureModule.this); 1202 mCamera.setReadyStateChangedListener(CaptureModule.this); 1203 } 1204 }); 1205 } 1206 }); 1207 } 1208 1209 private void closeCamera() { 1210 if (mCamera != null) { 1211 mCamera.setFocusStateListener(null); 1212 mCamera.close(null); 1213 mCamera = null; 1214 } 1215 } 1216 1217 private int getOrientation() { 1218 if (mAppController.isAutoRotateScreen()) { 1219 return mDisplayRotation; 1220 } else { 1221 return mOrientation; 1222 } 1223 } 1224 1225 /** 1226 * @return Whether we are resuming from within the lockscreen. 1227 */ 1228 private static boolean isResumeFromLockscreen(Activity activity) { 1229 String action = activity.getIntent().getAction(); 1230 return (MediaStore.INTENT_ACTION_STILL_IMAGE_CAMERA.equals(action) 1231 || MediaStore.INTENT_ACTION_STILL_IMAGE_CAMERA_SECURE.equals(action)); 1232 } 1233 1234 /** 1235 * Re-initialize the camera if e.g. the HDR mode or facing property changed. 1236 */ 1237 private void switchCamera() { 1238 if (mPaused) { 1239 return; 1240 } 1241 cancelCountDown(); 1242 mAppController.freezeScreenUntilPreviewReady(); 1243 initSurface(mPreviewTexture); 1244 1245 // TODO: Un-comment once we have focus back. 1246 // if (mFocusManager != null) { 1247 // mFocusManager.removeMessages(); 1248 // } 1249 // mFocusManager.setMirror(mMirror); 1250 } 1251 1252 private Size getPictureSizeFromSettings() { 1253 String pictureSizeKey = mCameraFacing == Facing.FRONT ? Keys.KEY_PICTURE_SIZE_FRONT 1254 : Keys.KEY_PICTURE_SIZE_BACK; 1255 return mSettingsManager.getSize(SettingsManager.SCOPE_GLOBAL, pictureSizeKey); 1256 } 1257 1258 private int getPreviewOrientation(int deviceOrientationDegrees) { 1259 // Important: Camera2 buffers are already rotated to the natural 1260 // orientation of the device (at least for the back-camera). 1261 1262 // TODO: Remove this hack for the front camera as soon as b/16637957 is 1263 // fixed. 1264 if (mCameraFacing == Facing.FRONT) { 1265 deviceOrientationDegrees += 180; 1266 } 1267 return (360 - deviceOrientationDegrees) % 360; 1268 } 1269 1270 /** 1271 * Returns which way around the camera is facing, based on it's ID. 1272 * <p> 1273 * TODO: This needs to change so that we store the direction directly in the 1274 * settings, rather than a Camera ID. 1275 */ 1276 private static Facing getFacingFromCameraId(int cameraId) { 1277 return cameraId == 1 ? Facing.FRONT : Facing.BACK; 1278 } 1279 1280 private void resetTextureBufferSize() { 1281 // Reset the default buffer sizes on the shared SurfaceTexture 1282 // so they are not scaled for gcam. 1283 // 1284 // According to the documentation for 1285 // SurfaceTexture.setDefaultBufferSize, 1286 // photo and video based image producers (presumably only Camera 1 api), 1287 // override this buffer size. Any module that uses egl to render to a 1288 // SurfaceTexture must have these buffer sizes reset manually. Otherwise 1289 // the SurfaceTexture cannot be transformed by matrix set on the 1290 // TextureView. 1291 if (mPreviewTexture != null) { 1292 mPreviewTexture.setDefaultBufferSize(mAppController.getCameraAppUI().getSurfaceWidth(), 1293 mAppController.getCameraAppUI().getSurfaceHeight()); 1294 } 1295 } 1296 1297 /** 1298 * @return The currently set Flash settings. Defaults to AUTO if the setting 1299 * could not be parsed. 1300 */ 1301 private Flash getFlashModeFromSettings() { 1302 String flashSetting = mSettingsManager.getString(mAppController.getCameraScope(), 1303 Keys.KEY_FLASH_MODE); 1304 try { 1305 return Flash.valueOf(flashSetting.toUpperCase()); 1306 } catch (IllegalArgumentException ex) { 1307 Log.w(TAG, "Could not parse Flash Setting. Defaulting to AUTO."); 1308 return Flash.AUTO; 1309 } 1310 } 1311} 1312