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/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.camera;
import android.annotation.TargetApi;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.ImageFormat;
import android.graphics.Matrix;
import android.graphics.PixelFormat;
import android.graphics.Rect;
import android.graphics.SurfaceTexture;
import android.graphics.YuvImage;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.hardware.Camera.Parameters;
import android.hardware.Camera.Size;
import android.media.ExifInterface;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Handler;
import android.os.Message;
import android.os.PowerManager;
import android.util.Log;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.OrientationEventListener;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.view.WindowManager;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import com.android.camera.CameraManager.CameraProxy;
import com.android.camera.ui.LayoutChangeNotifier;
import com.android.camera.ui.LayoutNotifyView;
import com.android.camera.ui.PopupManager;
import com.android.camera.ui.Rotatable;
import com.android.camera.ui.RotateLayout;
import com.android.gallery3d.common.ApiHelper;
import com.android.gallery3d.ui.GLRootView;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.List;
import java.util.TimeZone;
/**
* Activity to handle panorama capturing.
*/
@TargetApi(ApiHelper.VERSION_CODES.HONEYCOMB) // uses SurfaceTexture
public class PanoramaModule implements CameraModule,
SurfaceTexture.OnFrameAvailableListener,
ShutterButton.OnShutterButtonListener,
LayoutChangeNotifier.Listener {
public static final int DEFAULT_SWEEP_ANGLE = 160;
public static final int DEFAULT_BLEND_MODE = Mosaic.BLENDTYPE_HORIZONTAL;
public static final int DEFAULT_CAPTURE_PIXELS = 960 * 720;
private static final int MSG_LOW_RES_FINAL_MOSAIC_READY = 1;
private static final int MSG_GENERATE_FINAL_MOSAIC_ERROR = 2;
private static final int MSG_RESET_TO_PREVIEW = 3;
private static final int MSG_CLEAR_SCREEN_DELAY = 4;
private static final int SCREEN_DELAY = 2 * 60 * 1000;
private static final String TAG = "CAM PanoModule";
private static final int PREVIEW_STOPPED = 0;
private static final int PREVIEW_ACTIVE = 1;
private static final int CAPTURE_STATE_VIEWFINDER = 0;
private static final int CAPTURE_STATE_MOSAIC = 1;
private static final String GPS_DATE_FORMAT_STR = "yyyy:MM:dd";
private static final String GPS_TIME_FORMAT_STR = "kk/1,mm/1,ss/1";
private static final String DATETIME_FORMAT_STR = "yyyy:MM:dd kk:mm:ss";
// The unit of speed is degrees per frame.
private static final float PANNING_SPEED_THRESHOLD = 2.5f;
private ContentResolver mContentResolver;
private GLRootView mGLRootView;
private ViewGroup mPanoLayout;
private LinearLayout mCaptureLayout;
private View mReviewLayout;
private ImageView mReview;
private View mCaptureIndicator;
private PanoProgressBar mPanoProgressBar;
private PanoProgressBar mSavingProgressBar;
private Matrix mProgressDirectionMatrix = new Matrix();
private float[] mProgressAngle = new float[2];
private LayoutNotifyView mPreviewArea;
private View mLeftIndicator;
private View mRightIndicator;
private MosaicPreviewRenderer mMosaicPreviewRenderer;
private TextView mTooFastPrompt;
private ShutterButton mShutterButton;
private Object mWaitObject = new Object();
private DateFormat mGPSDateStampFormat;
private DateFormat mGPSTimeStampFormat;
private DateFormat mDateTimeStampFormat;
private String mPreparePreviewString;
private String mDialogTitle;
private String mDialogOkString;
private String mDialogPanoramaFailedString;
private String mDialogWaitingPreviousString;
private int mIndicatorColor;
private int mIndicatorColorFast;
private boolean mUsingFrontCamera;
private int mPreviewWidth;
private int mPreviewHeight;
private int mCameraState;
private int mCaptureState;
private PowerManager.WakeLock mPartialWakeLock;
private MosaicFrameProcessor mMosaicFrameProcessor;
private boolean mMosaicFrameProcessorInitialized;
private AsyncTask <Void, Void, Void> mWaitProcessorTask;
private long mTimeTaken;
private Handler mMainHandler;
private SurfaceTexture mCameraTexture;
private boolean mThreadRunning;
private boolean mCancelComputation;
private float mHorizontalViewAngle;
private float mVerticalViewAngle;
// Prefer FOCUS_MODE_INFINITY to FOCUS_MODE_CONTINUOUS_VIDEO because of
// getting a better image quality by the former.
private String mTargetFocusMode = Parameters.FOCUS_MODE_INFINITY;
private PanoOrientationEventListener mOrientationEventListener;
// The value could be 0, 90, 180, 270 for the 4 different orientations measured in clockwise
// respectively.
private int mDeviceOrientation;
private int mDeviceOrientationAtCapture;
private int mCameraOrientation;
private int mOrientationCompensation;
private RotateDialogController mRotateDialog;
private SoundClips.Player mSoundPlayer;
private Runnable mOnFrameAvailableRunnable;
private CameraActivity mActivity;
private View mRootView;
private CameraProxy mCameraDevice;
private boolean mPaused;
private class MosaicJpeg {
public MosaicJpeg(byte[] data, int width, int height) {
this.data = data;
this.width = width;
this.height = height;
this.isValid = true;
}
public MosaicJpeg() {
this.data = null;
this.width = 0;
this.height = 0;
this.isValid = false;
}
public final byte[] data;
public final int width;
public final int height;
public final boolean isValid;
}
private class PanoOrientationEventListener extends OrientationEventListener {
public PanoOrientationEventListener(Context context) {
super(context);
}
@Override
public void onOrientationChanged(int orientation) {
// We keep the last known orientation. So if the user first orient
// the camera then point the camera to floor or sky, we still have
// the correct orientation.
if (orientation == ORIENTATION_UNKNOWN) return;
mDeviceOrientation = Util.roundOrientation(orientation, mDeviceOrientation);
// When the screen is unlocked, display rotation may change. Always
// calculate the up-to-date orientationCompensation.
int orientationCompensation = mDeviceOrientation
+ Util.getDisplayRotation(mActivity) % 360;
if (mOrientationCompensation != orientationCompensation) {
mOrientationCompensation = orientationCompensation;
mActivity.getGLRoot().requestLayoutContentPane();
}
}
}
@Override
public void init(CameraActivity activity, View parent, boolean reuseScreenNail) {
mActivity = activity;
mRootView = (ViewGroup) parent;
createContentView();
mContentResolver = mActivity.getContentResolver();
if (reuseScreenNail) {
mActivity.reuseCameraScreenNail(true);
} else {
mActivity.createCameraScreenNail(true);
}
// This runs in UI thread.
mOnFrameAvailableRunnable = new Runnable() {
@Override
public void run() {
// Frames might still be available after the activity is paused.
// If we call onFrameAvailable after pausing, the GL thread will crash.
if (mPaused) return;
if (mGLRootView.getVisibility() != View.VISIBLE) {
mMosaicPreviewRenderer.showPreviewFrameSync();
mGLRootView.setVisibility(View.VISIBLE);
} else {
if (mCaptureState == CAPTURE_STATE_VIEWFINDER) {
mMosaicPreviewRenderer.showPreviewFrame();
} else {
mMosaicPreviewRenderer.alignFrameSync();
mMosaicFrameProcessor.processFrame();
}
}
}
};
mGPSDateStampFormat = new SimpleDateFormat(GPS_DATE_FORMAT_STR);
mGPSTimeStampFormat = new SimpleDateFormat(GPS_TIME_FORMAT_STR);
mDateTimeStampFormat = new SimpleDateFormat(DATETIME_FORMAT_STR);
TimeZone tzUTC = TimeZone.getTimeZone("UTC");
mGPSDateStampFormat.setTimeZone(tzUTC);
mGPSTimeStampFormat.setTimeZone(tzUTC);
PowerManager pm = (PowerManager) mActivity.getSystemService(Context.POWER_SERVICE);
mPartialWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "Panorama");
mOrientationEventListener = new PanoOrientationEventListener(mActivity);
mMosaicFrameProcessor = MosaicFrameProcessor.getInstance();
Resources appRes = mActivity.getResources();
mPreparePreviewString = appRes.getString(R.string.pano_dialog_prepare_preview);
mDialogTitle = appRes.getString(R.string.pano_dialog_title);
mDialogOkString = appRes.getString(R.string.dialog_ok);
mDialogPanoramaFailedString = appRes.getString(R.string.pano_dialog_panorama_failed);
mDialogWaitingPreviousString = appRes.getString(R.string.pano_dialog_waiting_previous);
mGLRootView = (GLRootView) mActivity.getGLRoot();
mMainHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case MSG_LOW_RES_FINAL_MOSAIC_READY:
onBackgroundThreadFinished();
showFinalMosaic((Bitmap) msg.obj);
saveHighResMosaic();
break;
case MSG_GENERATE_FINAL_MOSAIC_ERROR:
onBackgroundThreadFinished();
if (mPaused) {
resetToPreview();
} else {
mRotateDialog.showAlertDialog(
mDialogTitle, mDialogPanoramaFailedString,
mDialogOkString, new Runnable() {
@Override
public void run() {
resetToPreview();
}},
null, null);
}
clearMosaicFrameProcessorIfNeeded();
break;
case MSG_RESET_TO_PREVIEW:
onBackgroundThreadFinished();
resetToPreview();
clearMosaicFrameProcessorIfNeeded();
break;
case MSG_CLEAR_SCREEN_DELAY:
mActivity.getWindow().clearFlags(WindowManager.LayoutParams.
FLAG_KEEP_SCREEN_ON);
break;
}
}
};
}
@Override
public boolean dispatchTouchEvent(MotionEvent m) {
return mActivity.superDispatchTouchEvent(m);
}
private void setupCamera() throws CameraHardwareException, CameraDisabledException {
openCamera();
Parameters parameters = mCameraDevice.getParameters();
setupCaptureParams(parameters);
configureCamera(parameters);
}
private void releaseCamera() {
if (mCameraDevice != null) {
mCameraDevice.setPreviewCallbackWithBuffer(null);
CameraHolder.instance().release();
mCameraDevice = null;
mCameraState = PREVIEW_STOPPED;
}
}
private void openCamera() throws CameraHardwareException, CameraDisabledException {
int cameraId = CameraHolder.instance().getBackCameraId();
// If there is no back camera, use the first camera. Camera id starts
// from 0. Currently if a camera is not back facing, it is front facing.
// This is also forward compatible if we have a new facing other than
// back or front in the future.
if (cameraId == -1) cameraId = 0;
mCameraDevice = Util.openCamera(mActivity, cameraId);
mCameraOrientation = Util.getCameraOrientation(cameraId);
if (cameraId == CameraHolder.instance().getFrontCameraId()) mUsingFrontCamera = true;
}
private boolean findBestPreviewSize(List<Size> supportedSizes, boolean need4To3,
boolean needSmaller) {
int pixelsDiff = DEFAULT_CAPTURE_PIXELS;
boolean hasFound = false;
for (Size size : supportedSizes) {
int h = size.height;
int w = size.width;
// we only want 4:3 format.
int d = DEFAULT_CAPTURE_PIXELS - h * w;
if (needSmaller && d < 0) { // no bigger preview than 960x720.
continue;
}
if (need4To3 && (h * 4 != w * 3)) {
continue;
}
d = Math.abs(d);
if (d < pixelsDiff) {
mPreviewWidth = w;
mPreviewHeight = h;
pixelsDiff = d;
hasFound = true;
}
}
return hasFound;
}
private void setupCaptureParams(Parameters parameters) {
List<Size> supportedSizes = parameters.getSupportedPreviewSizes();
if (!findBestPreviewSize(supportedSizes, true, true)) {
Log.w(TAG, "No 4:3 ratio preview size supported.");
if (!findBestPreviewSize(supportedSizes, false, true)) {
Log.w(TAG, "Can't find a supported preview size smaller than 960x720.");
findBestPreviewSize(supportedSizes, false, false);
}
}
Log.v(TAG, "preview h = " + mPreviewHeight + " , w = " + mPreviewWidth);
parameters.setPreviewSize(mPreviewWidth, mPreviewHeight);
List<int[]> frameRates = parameters.getSupportedPreviewFpsRange();
int last = frameRates.size() - 1;
int minFps = (frameRates.get(last))[Parameters.PREVIEW_FPS_MIN_INDEX];
int maxFps = (frameRates.get(last))[Parameters.PREVIEW_FPS_MAX_INDEX];
parameters.setPreviewFpsRange(minFps, maxFps);
Log.v(TAG, "preview fps: " + minFps + ", " + maxFps);
List<String> supportedFocusModes = parameters.getSupportedFocusModes();
if (supportedFocusModes.indexOf(mTargetFocusMode) >= 0) {
parameters.setFocusMode(mTargetFocusMode);
} else {
// Use the default focus mode and log a message
Log.w(TAG, "Cannot set the focus mode to " + mTargetFocusMode +
" becuase the mode is not supported.");
}
parameters.set(Util.RECORDING_HINT, Util.FALSE);
mHorizontalViewAngle = parameters.getHorizontalViewAngle();
mVerticalViewAngle = parameters.getVerticalViewAngle();
}
public int getPreviewBufSize() {
PixelFormat pixelInfo = new PixelFormat();
PixelFormat.getPixelFormatInfo(mCameraDevice.getParameters().getPreviewFormat(), pixelInfo);
// TODO: remove this extra 32 byte after the driver bug is fixed.
return (mPreviewWidth * mPreviewHeight * pixelInfo.bitsPerPixel / 8) + 32;
}
private void configureCamera(Parameters parameters) {
mCameraDevice.setParameters(parameters);
}
private void configMosaicPreview(int w, int h) {
stopCameraPreview();
CameraScreenNail screenNail = (CameraScreenNail) mActivity.mCameraScreenNail;
screenNail.setSize(w, h);
if (screenNail.getSurfaceTexture() == null) {
screenNail.acquireSurfaceTexture();
} else {
screenNail.releaseSurfaceTexture();
screenNail.acquireSurfaceTexture();
mActivity.notifyScreenNailChanged();
}
boolean isLandscape = (mActivity.getResources().getConfiguration().orientation
== Configuration.ORIENTATION_LANDSCAPE);
if (mMosaicPreviewRenderer != null) mMosaicPreviewRenderer.release();
mMosaicPreviewRenderer = new MosaicPreviewRenderer(
screenNail.getSurfaceTexture(), w, h, isLandscape);
mCameraTexture = mMosaicPreviewRenderer.getInputSurfaceTexture();
if (!mPaused && !mThreadRunning && mWaitProcessorTask == null) {
resetToPreview();
}
}
// Receives the layout change event from the preview area. So we can set
// the camera preview screennail to the same size and initialize the mosaic
// preview renderer.
@Override
public void onLayoutChange(View v, int l, int t, int r, int b) {
Log.i(TAG, "layout change: "+(r - l) + "/" +(b - t));
mActivity.onLayoutChange(v, l, t, r, b);
configMosaicPreview(r - l, b - t);
}
@Override
public void onFrameAvailable(SurfaceTexture surface) {
/* This function may be called by some random thread,
* so let's be safe and jump back to ui thread.
* No OpenGL calls can be done here. */
mActivity.runOnUiThread(mOnFrameAvailableRunnable);
}
private void hideDirectionIndicators() {
mLeftIndicator.setVisibility(View.GONE);
mRightIndicator.setVisibility(View.GONE);
}
private void showDirectionIndicators(int direction) {
switch (direction) {
case PanoProgressBar.DIRECTION_NONE:
mLeftIndicator.setVisibility(View.VISIBLE);
mRightIndicator.setVisibility(View.VISIBLE);
break;
case PanoProgressBar.DIRECTION_LEFT:
mLeftIndicator.setVisibility(View.VISIBLE);
mRightIndicator.setVisibility(View.GONE);
break;
case PanoProgressBar.DIRECTION_RIGHT:
mLeftIndicator.setVisibility(View.GONE);
mRightIndicator.setVisibility(View.VISIBLE);
break;
}
}
public void startCapture() {
// Reset values so we can do this again.
mCancelComputation = false;
mTimeTaken = System.currentTimeMillis();
mActivity.setSwipingEnabled(false);
mActivity.hideSwitcher();
mShutterButton.setImageResource(R.drawable.btn_shutter_recording);
mCaptureState = CAPTURE_STATE_MOSAIC;
mCaptureIndicator.setVisibility(View.VISIBLE);
showDirectionIndicators(PanoProgressBar.DIRECTION_NONE);
mMosaicFrameProcessor.setProgressListener(new MosaicFrameProcessor.ProgressListener() {
@Override
public void onProgress(boolean isFinished, float panningRateX, float panningRateY,
float progressX, float progressY) {
float accumulatedHorizontalAngle = progressX * mHorizontalViewAngle;
float accumulatedVerticalAngle = progressY * mVerticalViewAngle;
if (isFinished
|| (Math.abs(accumulatedHorizontalAngle) >= DEFAULT_SWEEP_ANGLE)
|| (Math.abs(accumulatedVerticalAngle) >= DEFAULT_SWEEP_ANGLE)) {
stopCapture(false);
} else {
float panningRateXInDegree = panningRateX * mHorizontalViewAngle;
float panningRateYInDegree = panningRateY * mVerticalViewAngle;
updateProgress(panningRateXInDegree, panningRateYInDegree,
accumulatedHorizontalAngle, accumulatedVerticalAngle);
}
}
});
mPanoProgressBar.reset();
// TODO: calculate the indicator width according to different devices to reflect the actual
// angle of view of the camera device.
mPanoProgressBar.setIndicatorWidth(20);
mPanoProgressBar.setMaxProgress(DEFAULT_SWEEP_ANGLE);
mPanoProgressBar.setVisibility(View.VISIBLE);
mDeviceOrientationAtCapture = mDeviceOrientation;
keepScreenOn();
mActivity.getOrientationManager().lockOrientation();
setupProgressDirectionMatrix();
}
void setupProgressDirectionMatrix() {
int degrees = Util.getDisplayRotation(mActivity);
int cameraId = CameraHolder.instance().getBackCameraId();
int orientation = Util.getDisplayOrientation(degrees, cameraId);
mProgressDirectionMatrix.reset();
mProgressDirectionMatrix.postRotate(orientation);
}
private void stopCapture(boolean aborted) {
mCaptureState = CAPTURE_STATE_VIEWFINDER;
mCaptureIndicator.setVisibility(View.GONE);
hideTooFastIndication();
hideDirectionIndicators();
mMosaicFrameProcessor.setProgressListener(null);
stopCameraPreview();
mCameraTexture.setOnFrameAvailableListener(null);
if (!aborted && !mThreadRunning) {
mRotateDialog.showWaitingDialog(mPreparePreviewString);
// Hide shutter button, shutter icon, etc when waiting for
// panorama to stitch
mActivity.hideUI();
runBackgroundThread(new Thread() {
@Override
public void run() {
MosaicJpeg jpeg = generateFinalMosaic(false);
if (jpeg != null && jpeg.isValid) {
Bitmap bitmap = null;
bitmap = BitmapFactory.decodeByteArray(jpeg.data, 0, jpeg.data.length);
mMainHandler.sendMessage(mMainHandler.obtainMessage(
MSG_LOW_RES_FINAL_MOSAIC_READY, bitmap));
} else {
mMainHandler.sendMessage(mMainHandler.obtainMessage(
MSG_RESET_TO_PREVIEW));
}
}
});
}
keepScreenOnAwhile();
}
private void showTooFastIndication() {
mTooFastPrompt.setVisibility(View.VISIBLE);
// The PreviewArea also contains the border for "too fast" indication.
mPreviewArea.setVisibility(View.VISIBLE);
mPanoProgressBar.setIndicatorColor(mIndicatorColorFast);
mLeftIndicator.setEnabled(true);
mRightIndicator.setEnabled(true);
}
private void hideTooFastIndication() {
mTooFastPrompt.setVisibility(View.GONE);
// We set "INVISIBLE" instead of "GONE" here because we need mPreviewArea to have layout
// information so we can know the size and position for mCameraScreenNail.
mPreviewArea.setVisibility(View.INVISIBLE);
mPanoProgressBar.setIndicatorColor(mIndicatorColor);
mLeftIndicator.setEnabled(false);
mRightIndicator.setEnabled(false);
}
private void updateProgress(float panningRateXInDegree, float panningRateYInDegree,
float progressHorizontalAngle, float progressVerticalAngle) {
mGLRootView.requestRender();
if ((Math.abs(panningRateXInDegree) > PANNING_SPEED_THRESHOLD)
|| (Math.abs(panningRateYInDegree) > PANNING_SPEED_THRESHOLD)) {
showTooFastIndication();
} else {
hideTooFastIndication();
}
// progressHorizontalAngle and progressVerticalAngle are relative to the
// camera. Convert them to UI direction.
mProgressAngle[0] = progressHorizontalAngle;
mProgressAngle[1] = progressVerticalAngle;
mProgressDirectionMatrix.mapPoints(mProgressAngle);
int angleInMajorDirection =
(Math.abs(mProgressAngle[0]) > Math.abs(mProgressAngle[1]))
? (int) mProgressAngle[0]
: (int) mProgressAngle[1];
mPanoProgressBar.setProgress((angleInMajorDirection));
}
private void setViews(Resources appRes) {
mCaptureState = CAPTURE_STATE_VIEWFINDER;
mPanoProgressBar = (PanoProgressBar) mRootView.findViewById(R.id.pano_pan_progress_bar);
mPanoProgressBar.setBackgroundColor(appRes.getColor(R.color.pano_progress_empty));
mPanoProgressBar.setDoneColor(appRes.getColor(R.color.pano_progress_done));
mPanoProgressBar.setIndicatorColor(mIndicatorColor);
mPanoProgressBar.setOnDirectionChangeListener(
new PanoProgressBar.OnDirectionChangeListener () {
@Override
public void onDirectionChange(int direction) {
if (mCaptureState == CAPTURE_STATE_MOSAIC) {
showDirectionIndicators(direction);
}
}
});
mLeftIndicator = mRootView.findViewById(R.id.pano_pan_left_indicator);
mRightIndicator = mRootView.findViewById(R.id.pano_pan_right_indicator);
mLeftIndicator.setEnabled(false);
mRightIndicator.setEnabled(false);
mTooFastPrompt = (TextView) mRootView.findViewById(R.id.pano_capture_too_fast_textview);
// This mPreviewArea also shows the border for visual "too fast" indication.
mPreviewArea = (LayoutNotifyView) mRootView.findViewById(R.id.pano_preview_area);
mPreviewArea.setOnLayoutChangeListener(this);
mSavingProgressBar = (PanoProgressBar) mRootView.findViewById(R.id.pano_saving_progress_bar);
mSavingProgressBar.setIndicatorWidth(0);
mSavingProgressBar.setMaxProgress(100);
mSavingProgressBar.setBackgroundColor(appRes.getColor(R.color.pano_progress_empty));
mSavingProgressBar.setDoneColor(appRes.getColor(R.color.pano_progress_indication));
mCaptureIndicator = mRootView.findViewById(R.id.pano_capture_indicator);
mReviewLayout = mRootView.findViewById(R.id.pano_review_layout);
mReview = (ImageView) mRootView.findViewById(R.id.pano_reviewarea);
View cancelButton = mRootView.findViewById(R.id.pano_review_cancel_button);
cancelButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
if (mPaused || mCameraTexture == null) return;
cancelHighResComputation();
}
});
mShutterButton = mActivity.getShutterButton();
mShutterButton.setImageResource(R.drawable.btn_new_shutter);
mShutterButton.setOnShutterButtonListener(this);
if (mActivity.getResources().getConfiguration().orientation
== Configuration.ORIENTATION_PORTRAIT) {
Rotatable view = (Rotatable) mRootView.findViewById(R.id.pano_rotate_reviewarea);
view.setOrientation(270, false);
}
}
private void createContentView() {
mActivity.getLayoutInflater().inflate(R.layout.panorama_module, (ViewGroup) mRootView);
Resources appRes = mActivity.getResources();
mCaptureLayout = (LinearLayout) mRootView.findViewById(R.id.camera_app_root);
mIndicatorColor = appRes.getColor(R.color.pano_progress_indication);
mIndicatorColorFast = appRes.getColor(R.color.pano_progress_indication_fast);
mPanoLayout = (ViewGroup) mRootView.findViewById(R.id.pano_layout);
mRotateDialog = new RotateDialogController(mActivity, R.layout.rotate_dialog);
setViews(appRes);
}
@Override
public void onShutterButtonClick() {
// If mCameraTexture == null then GL setup is not finished yet.
// No buttons can be pressed.
if (mPaused || mThreadRunning || mCameraTexture == null) return;
// Since this button will stay on the screen when capturing, we need to check the state
// right now.
switch (mCaptureState) {
case CAPTURE_STATE_VIEWFINDER:
if(mActivity.getStorageSpace() <= Storage.LOW_STORAGE_THRESHOLD) return;
mSoundPlayer.play(SoundClips.START_VIDEO_RECORDING);
startCapture();
break;
case CAPTURE_STATE_MOSAIC:
mSoundPlayer.play(SoundClips.STOP_VIDEO_RECORDING);
stopCapture(false);
}
}
@Override
public void onShutterButtonFocus(boolean pressed) {
}
public void reportProgress() {
mSavingProgressBar.reset();
mSavingProgressBar.setRightIncreasing(true);
Thread t = new Thread() {
@Override
public void run() {
while (mThreadRunning) {
final int progress = mMosaicFrameProcessor.reportProgress(
true, mCancelComputation);
try {
synchronized (mWaitObject) {
mWaitObject.wait(50);
}
} catch (InterruptedException e) {
throw new RuntimeException("Panorama reportProgress failed", e);
}
// Update the progress bar
mActivity.runOnUiThread(new Runnable() {
@Override
public void run() {
mSavingProgressBar.setProgress(progress);
}
});
}
}
};
t.start();
}
private int getCaptureOrientation() {
// The panorama image returned from the library is oriented based on the
// natural orientation of a camera. We need to set an orientation for the image
// in its EXIF header, so the image can be displayed correctly.
// The orientation is calculated from compensating the
// device orientation at capture and the camera orientation respective to
// the natural orientation of the device.
int orientation;
if (mUsingFrontCamera) {
// mCameraOrientation is negative with respect to the front facing camera.
// See document of android.hardware.Camera.Parameters.setRotation.
orientation = (mDeviceOrientationAtCapture - mCameraOrientation + 360) % 360;
} else {
orientation = (mDeviceOrientationAtCapture + mCameraOrientation) % 360;
}
return orientation;
}
public void saveHighResMosaic() {
runBackgroundThread(new Thread() {
@Override
public void run() {
mPartialWakeLock.acquire();
MosaicJpeg jpeg;
try {
jpeg = generateFinalMosaic(true);
} finally {
mPartialWakeLock.release();
}
if (jpeg == null) { // Cancelled by user.
mMainHandler.sendEmptyMessage(MSG_RESET_TO_PREVIEW);
} else if (!jpeg.isValid) { // Error when generating mosaic.
mMainHandler.sendEmptyMessage(MSG_GENERATE_FINAL_MOSAIC_ERROR);
} else {
int orientation = getCaptureOrientation();
Uri uri = savePanorama(jpeg.data, jpeg.width, jpeg.height, orientation);
if (uri != null) {
mActivity.addSecureAlbumItemIfNeeded(false, uri);
Util.broadcastNewPicture(mActivity, uri);
}
mMainHandler.sendMessage(
mMainHandler.obtainMessage(MSG_RESET_TO_PREVIEW));
}
}
});
reportProgress();
}
private void runBackgroundThread(Thread thread) {
mThreadRunning = true;
thread.start();
}
private void onBackgroundThreadFinished() {
mThreadRunning = false;
mRotateDialog.dismissDialog();
}
private void cancelHighResComputation() {
mCancelComputation = true;
synchronized (mWaitObject) {
mWaitObject.notify();
}
}
// This function will be called upon the first camera frame is available.
private void reset() {
mCaptureState = CAPTURE_STATE_VIEWFINDER;
mActivity.getOrientationManager().unlockOrientation();
// We should set mGLRootView visible too. However, since there might be no
// frame available yet, setting mGLRootView visible should be done right after
// the first camera frame is available and therefore it is done by
// mOnFirstFrameAvailableRunnable.
mActivity.setSwipingEnabled(true);
mShutterButton.setImageResource(R.drawable.btn_new_shutter);
mReviewLayout.setVisibility(View.GONE);
mPanoProgressBar.setVisibility(View.GONE);
// Orientation change will trigger onLayoutChange->configMosaicPreview->
// resetToPreview. Do not show the capture UI in film strip.
if (mActivity.mShowCameraAppView) {
mCaptureLayout.setVisibility(View.VISIBLE);
mActivity.showUI();
}
mMosaicFrameProcessor.reset();
}
private void resetToPreview() {
reset();
if (!mPaused) startCameraPreview();
}
private static class FlipBitmapDrawable extends BitmapDrawable {
public FlipBitmapDrawable(Resources res, Bitmap bitmap) {
super(res, bitmap);
}
@Override
public void draw(Canvas canvas) {
Rect bounds = getBounds();
int cx = bounds.centerX();
int cy = bounds.centerY();
canvas.save(Canvas.MATRIX_SAVE_FLAG);
canvas.rotate(180, cx, cy);
super.draw(canvas);
canvas.restore();
}
}
private void showFinalMosaic(Bitmap bitmap) {
if (bitmap != null) {
int orientation = getCaptureOrientation();
if (orientation >= 180) {
// We need to flip the drawable to compensate
mReview.setImageDrawable(new FlipBitmapDrawable(
mActivity.getResources(), bitmap));
} else {
mReview.setImageBitmap(bitmap);
}
}
mGLRootView.setVisibility(View.GONE);
mCaptureLayout.setVisibility(View.GONE);
mReviewLayout.setVisibility(View.VISIBLE);
}
private Uri savePanorama(byte[] jpegData, int width, int height, int orientation) {
if (jpegData != null) {
String filename = PanoUtil.createName(
mActivity.getResources().getString(R.string.pano_file_name_format), mTimeTaken);
String filepath = Storage.generateFilepath(filename);
Storage.writeFile(filepath, jpegData);
// Add Exif tags.
try {
ExifInterface exif = new ExifInterface(filepath);
exif.setAttribute(ExifInterface.TAG_GPS_DATESTAMP,
mGPSDateStampFormat.format(mTimeTaken));
exif.setAttribute(ExifInterface.TAG_GPS_TIMESTAMP,
mGPSTimeStampFormat.format(mTimeTaken));
exif.setAttribute(ExifInterface.TAG_DATETIME,
mDateTimeStampFormat.format(mTimeTaken));
exif.setAttribute(ExifInterface.TAG_ORIENTATION,
getExifOrientation(orientation));
exif.saveAttributes();
} catch (IOException e) {
Log.e(TAG, "Cannot set EXIF for " + filepath, e);
}
int jpegLength = (int) (new File(filepath).length());
return Storage.addImage(mContentResolver, filename, mTimeTaken,
null, orientation, jpegLength, filepath, width, height);
}
return null;
}
private static String getExifOrientation(int orientation) {
switch (orientation) {
case 0:
return String.valueOf(ExifInterface.ORIENTATION_NORMAL);
case 90:
return String.valueOf(ExifInterface.ORIENTATION_ROTATE_90);
case 180:
return String.valueOf(ExifInterface.ORIENTATION_ROTATE_180);
case 270:
return String.valueOf(ExifInterface.ORIENTATION_ROTATE_270);
default:
throw new AssertionError("invalid: " + orientation);
}
}
private void clearMosaicFrameProcessorIfNeeded() {
if (!mPaused || mThreadRunning) return;
// Only clear the processor if it is initialized by this activity
// instance. Other activity instances may be using it.
if (mMosaicFrameProcessorInitialized) {
mMosaicFrameProcessor.clear();
mMosaicFrameProcessorInitialized = false;
}
}
private void initMosaicFrameProcessorIfNeeded() {
if (mPaused || mThreadRunning) return;
mMosaicFrameProcessor.initialize(
mPreviewWidth, mPreviewHeight, getPreviewBufSize());
mMosaicFrameProcessorInitialized = true;
}
@Override
public void onPauseBeforeSuper() {
mPaused = true;
}
@Override
public void onPauseAfterSuper() {
mOrientationEventListener.disable();
if (mCameraDevice == null) {
// Camera open failed. Nothing should be done here.
return;
}
// Stop the capturing first.
if (mCaptureState == CAPTURE_STATE_MOSAIC) {
stopCapture(true);
reset();
}
releaseCamera();
mCameraTexture = null;
// The preview renderer might not have a chance to be initialized before
// onPause().
if (mMosaicPreviewRenderer != null) {
mMosaicPreviewRenderer.release();
mMosaicPreviewRenderer = null;
}
clearMosaicFrameProcessorIfNeeded();
if (mWaitProcessorTask != null) {
mWaitProcessorTask.cancel(true);
mWaitProcessorTask = null;
}
resetScreenOn();
if (mSoundPlayer != null) {
mSoundPlayer.release();
mSoundPlayer = null;
}
CameraScreenNail screenNail = (CameraScreenNail) mActivity.mCameraScreenNail;
if (screenNail.getSurfaceTexture() != null) {
screenNail.releaseSurfaceTexture();
}
System.gc();
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
Drawable lowResReview = null;
if (mThreadRunning) lowResReview = mReview.getDrawable();
// Change layout in response to configuration change
mCaptureLayout.setOrientation(
newConfig.orientation == Configuration.ORIENTATION_LANDSCAPE
? LinearLayout.HORIZONTAL : LinearLayout.VERTICAL);
mCaptureLayout.removeAllViews();
LayoutInflater inflater = mActivity.getLayoutInflater();
inflater.inflate(R.layout.preview_frame_pano, mCaptureLayout);
mPanoLayout.removeView(mReviewLayout);
inflater.inflate(R.layout.pano_review, mPanoLayout);
setViews(mActivity.getResources());
if (mThreadRunning) {
mReview.setImageDrawable(lowResReview);
mCaptureLayout.setVisibility(View.GONE);
mReviewLayout.setVisibility(View.VISIBLE);
}
}
@Override
public void onOrientationChanged(int orientation) {
}
@Override
public void onResumeBeforeSuper() {
mPaused = false;
}
@Override
public void onResumeAfterSuper() {
mOrientationEventListener.enable();
mCaptureState = CAPTURE_STATE_VIEWFINDER;
try {
setupCamera();
} catch (CameraHardwareException e) {
Util.showErrorAndFinish(mActivity, R.string.cannot_connect_camera);
return;
} catch (CameraDisabledException e) {
Util.showErrorAndFinish(mActivity, R.string.camera_disabled);
return;
}
// Set up sound playback for shutter button
mSoundPlayer = SoundClips.getPlayer(mActivity);
// Check if another panorama instance is using the mosaic frame processor.
mRotateDialog.dismissDialog();
if (!mThreadRunning && mMosaicFrameProcessor.isMosaicMemoryAllocated()) {
mGLRootView.setVisibility(View.GONE);
mRotateDialog.showWaitingDialog(mDialogWaitingPreviousString);
// If stitching is still going on, make sure switcher and shutter button
// are not showing
mActivity.hideUI();
mWaitProcessorTask = new WaitProcessorTask().execute();
} else {
if (!mThreadRunning) mGLRootView.setVisibility(View.VISIBLE);
// Camera must be initialized before MosaicFrameProcessor is
// initialized. The preview size has to be decided by camera device.
initMosaicFrameProcessorIfNeeded();
int w = mPreviewArea.getWidth();
int h = mPreviewArea.getHeight();
if (w != 0 && h != 0) { // The layout has been calculated.
configMosaicPreview(w, h);
}
}
keepScreenOnAwhile();
// Dismiss open menu if exists.
PopupManager.getInstance(mActivity).notifyShowPopup(null);
mRootView.requestLayout();
}
/**
* Generate the final mosaic image.
*
* @param highRes flag to indicate whether we want to get a high-res version.
* @return a MosaicJpeg with its isValid flag set to true if successful; null if the generation
* process is cancelled; and a MosaicJpeg with its isValid flag set to false if there
* is an error in generating the final mosaic.
*/
public MosaicJpeg generateFinalMosaic(boolean highRes) {
int mosaicReturnCode = mMosaicFrameProcessor.createMosaic(highRes);
if (mosaicReturnCode == Mosaic.MOSAIC_RET_CANCELLED) {
return null;
} else if (mosaicReturnCode == Mosaic.MOSAIC_RET_ERROR) {
return new MosaicJpeg();
}
byte[] imageData = mMosaicFrameProcessor.getFinalMosaicNV21();
if (imageData == null) {
Log.e(TAG, "getFinalMosaicNV21() returned null.");
return new MosaicJpeg();
}
int len = imageData.length - 8;
int width = (imageData[len + 0] << 24) + ((imageData[len + 1] & 0xFF) << 16)
+ ((imageData[len + 2] & 0xFF) << 8) + (imageData[len + 3] & 0xFF);
int height = (imageData[len + 4] << 24) + ((imageData[len + 5] & 0xFF) << 16)
+ ((imageData[len + 6] & 0xFF) << 8) + (imageData[len + 7] & 0xFF);
Log.v(TAG, "ImLength = " + (len) + ", W = " + width + ", H = " + height);
if (width <= 0 || height <= 0) {
// TODO: pop up an error message indicating that the final result is not generated.
Log.e(TAG, "width|height <= 0!!, len = " + (len) + ", W = " + width + ", H = " +
height);
return new MosaicJpeg();
}
YuvImage yuvimage = new YuvImage(imageData, ImageFormat.NV21, width, height, null);
ByteArrayOutputStream out = new ByteArrayOutputStream();
yuvimage.compressToJpeg(new Rect(0, 0, width, height), 100, out);
try {
out.close();
} catch (Exception e) {
Log.e(TAG, "Exception in storing final mosaic", e);
return new MosaicJpeg();
}
return new MosaicJpeg(out.toByteArray(), width, height);
}
private void startCameraPreview() {
if (mCameraDevice == null) {
// Camera open failed. Return.
return;
}
// This works around a driver issue. startPreview may fail if
// stopPreview/setPreviewTexture/startPreview are called several times
// in a row. mCameraTexture can be null after pressing home during
// mosaic generation and coming back. Preview will be started later in
// onLayoutChange->configMosaicPreview. This also reduces the latency.
if (mCameraTexture == null) return;
// If we're previewing already, stop the preview first (this will blank
// the screen).
if (mCameraState != PREVIEW_STOPPED) stopCameraPreview();
// Set the display orientation to 0, so that the underlying mosaic library
// can always get undistorted mPreviewWidth x mPreviewHeight image data
// from SurfaceTexture.
mCameraDevice.setDisplayOrientation(0);
if (mCameraTexture != null) mCameraTexture.setOnFrameAvailableListener(this);
mCameraDevice.setPreviewTextureAsync(mCameraTexture);
mCameraDevice.startPreviewAsync();
mCameraState = PREVIEW_ACTIVE;
}
private void stopCameraPreview() {
if (mCameraDevice != null && mCameraState != PREVIEW_STOPPED) {
Log.v(TAG, "stopPreview");
mCameraDevice.stopPreview();
}
mCameraState = PREVIEW_STOPPED;
}
@Override
public void onUserInteraction() {
if (mCaptureState != CAPTURE_STATE_MOSAIC) keepScreenOnAwhile();
}
@Override
public boolean onBackPressed() {
// If panorama is generating low res or high res mosaic, ignore back
// key. So the activity will not be destroyed.
if (mThreadRunning) return true;
return false;
}
private void resetScreenOn() {
mMainHandler.removeMessages(MSG_CLEAR_SCREEN_DELAY);
mActivity.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
}
private void keepScreenOnAwhile() {
mMainHandler.removeMessages(MSG_CLEAR_SCREEN_DELAY);
mActivity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
mMainHandler.sendEmptyMessageDelayed(MSG_CLEAR_SCREEN_DELAY, SCREEN_DELAY);
}
private void keepScreenOn() {
mMainHandler.removeMessages(MSG_CLEAR_SCREEN_DELAY);
mActivity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
}
private class WaitProcessorTask extends AsyncTask<Void, Void, Void> {
@Override
protected Void doInBackground(Void... params) {
synchronized (mMosaicFrameProcessor) {
while (!isCancelled() && mMosaicFrameProcessor.isMosaicMemoryAllocated()) {
try {
mMosaicFrameProcessor.wait();
} catch (Exception e) {
// ignore
}
}
}
return null;
}
@Override
protected void onPostExecute(Void result) {
mWaitProcessorTask = null;
mRotateDialog.dismissDialog();
mGLRootView.setVisibility(View.VISIBLE);
initMosaicFrameProcessorIfNeeded();
int w = mPreviewArea.getWidth();
int h = mPreviewArea.getHeight();
if (w != 0 && h != 0) { // The layout has been calculated.
configMosaicPreview(w, h);
}
resetToPreview();
}
}
@Override
public void onFullScreenChanged(boolean full) {
}
@Override
public void onStop() {
}
@Override
public void installIntentFilter() {
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
return false;
}
@Override
public boolean onKeyUp(int keyCode, KeyEvent event) {
return false;
}
@Override
public void onSingleTapUp(View view, int x, int y) {
}
@Override
public void onPreviewTextureCopied() {
}
@Override
public void onCaptureTextureCopied() {
}
@Override
public boolean updateStorageHintOnResume() {
return false;
}
@Override
public void updateCameraAppView() {
}
@Override
public boolean collapseCameraControls() {
return false;
}
@Override
public boolean needsSwitcher() {
return true;
}
@Override
public void onShowSwitcherPopup() {
}
}