Examples with OpenCamera com.google.zxing.client.android.camera.open.OpenCamera used on opensource projects

Example 11 with OpenCamera

use of com.google.zxing.client.android.camera.open.OpenCamera in project weex-example by KalicyZhou.

the class CameraConfigurationManager method initFromCameraParameters.

/**
   * Reads, one time, values from the camera that are needed by the app.
   */
void initFromCameraParameters(OpenCamera camera) {
    Camera.Parameters parameters = camera.getCamera().getParameters();
    WindowManager manager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
    Display display = manager.getDefaultDisplay();
    int displayRotation = display.getRotation();
    int cwRotationFromNaturalToDisplay;
    switch(displayRotation) {
        case Surface.ROTATION_0:
            cwRotationFromNaturalToDisplay = 0;
            break;
        case Surface.ROTATION_90:
            cwRotationFromNaturalToDisplay = 90;
            break;
        case Surface.ROTATION_180:
            cwRotationFromNaturalToDisplay = 180;
            break;
        case Surface.ROTATION_270:
            cwRotationFromNaturalToDisplay = 270;
            break;
        default:
            // Have seen this return incorrect values like -90
            if (displayRotation % 90 == 0) {
                cwRotationFromNaturalToDisplay = (360 + displayRotation) % 360;
            } else {
                throw new IllegalArgumentException("Bad rotation: " + displayRotation);
            }
    }
    Log.i(TAG, "Display at: " + cwRotationFromNaturalToDisplay);
    int cwRotationFromNaturalToCamera = camera.getOrientation();
    Log.i(TAG, "Camera at: " + cwRotationFromNaturalToCamera);
    // Still not 100% sure about this. But acts like we need to flip this:
    if (camera.getFacing() == CameraFacing.FRONT) {
        cwRotationFromNaturalToCamera = (360 - cwRotationFromNaturalToCamera) % 360;
        Log.i(TAG, "Front camera overriden to: " + cwRotationFromNaturalToCamera);
    }
    /*
    SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
    String overrideRotationString;
    if (camera.getFacing() == CameraFacing.FRONT) {
      overrideRotationString = prefs.getString(PreferencesActivity.KEY_FORCE_CAMERA_ORIENTATION_FRONT, null);
    } else {
      overrideRotationString = prefs.getString(PreferencesActivity.KEY_FORCE_CAMERA_ORIENTATION, null);
    }
    if (overrideRotationString != null && !"-".equals(overrideRotationString)) {
      Log.i(TAG, "Overriding camera manually to " + overrideRotationString);
      cwRotationFromNaturalToCamera = Integer.parseInt(overrideRotationString);
    }
     */
    cwRotationFromDisplayToCamera = (360 + cwRotationFromNaturalToCamera - cwRotationFromNaturalToDisplay) % 360;
    Log.i(TAG, "Final display orientation: " + cwRotationFromDisplayToCamera);
    if (camera.getFacing() == CameraFacing.FRONT) {
        Log.i(TAG, "Compensating rotation for front camera");
        cwNeededRotation = (360 - cwRotationFromDisplayToCamera) % 360;
    } else {
        cwNeededRotation = cwRotationFromDisplayToCamera;
    }
    Log.i(TAG, "Clockwise rotation from display to camera: " + cwNeededRotation);
    Point theScreenResolution = new Point();
    display.getSize(theScreenResolution);
    screenResolution = theScreenResolution;
    Log.i(TAG, "Screen resolution in current orientation: " + screenResolution);
    cameraResolution = CameraConfigurationUtils.findBestPreviewSizeValue(parameters, screenResolution);
    Log.i(TAG, "Camera resolution: " + cameraResolution);
    bestPreviewSize = CameraConfigurationUtils.findBestPreviewSizeValue(parameters, screenResolution);
    Log.i(TAG, "Best available preview size: " + bestPreviewSize);
    boolean isScreenPortrait = screenResolution.x < screenResolution.y;
    boolean isPreviewSizePortrait = bestPreviewSize.x < bestPreviewSize.y;
    if (isScreenPortrait == isPreviewSizePortrait) {
        previewSizeOnScreen = bestPreviewSize;
    } else {
        previewSizeOnScreen = new Point(bestPreviewSize.y, bestPreviewSize.x);
    }
    Log.i(TAG, "Preview size on screen: " + previewSizeOnScreen);
}

Example 12 with OpenCamera

use of com.google.zxing.client.android.camera.open.OpenCamera in project weex-example by KalicyZhou.

the class CameraManager method requestPreviewFrame.

/**
   * A single preview frame will be returned to the handler supplied. The data will arrive as byte[]
   * in the message.obj field, with width and height encoded as message.arg1 and message.arg2,
   * respectively.
   *
   * @param handler The handler to send the message to.
   * @param message The what field of the message to be sent.
   */
public synchronized void requestPreviewFrame(Handler handler, int message) {
    OpenCamera theCamera = camera;
    if (theCamera != null && previewing) {
        previewCallback.setHandler(handler, message);
        theCamera.getCamera().setOneShotPreviewCallback(previewCallback);
    }
}