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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 package org.chromium.device.vr; |
| 6 |
| 7 import android.content.Context; |
| 8 |
| 9 import com.google.vrtoolkit.cardboard.CardboardDeviceParams; |
| 10 import com.google.vrtoolkit.cardboard.FieldOfView; |
| 11 import com.google.vrtoolkit.cardboard.HeadMountedDisplay; |
| 12 import com.google.vrtoolkit.cardboard.HeadMountedDisplayManager; |
| 13 import com.google.vrtoolkit.cardboard.ScreenParams; |
| 14 import com.google.vrtoolkit.cardboard.sensors.HeadTracker; |
| 15 |
| 16 import org.chromium.base.annotations.CalledByNative; |
| 17 import org.chromium.base.annotations.JNINamespace; |
| 18 |
| 19 /** |
| 20 * This is the implementation of the C++ counterpart CardboardVRDevice. |
| 21 */ |
| 22 @JNINamespace("device") |
| 23 class CardboardVRDevice { |
| 24 private static final String TAG = "CardboardVRDevice"; |
| 25 private final HeadMountedDisplayManager mHMDManager; |
| 26 private final HeadTracker mHeadTracker; |
| 27 |
| 28 @CalledByNative |
| 29 private static CardboardVRDevice create(Context context) { |
| 30 return new CardboardVRDevice(context); |
| 31 } |
| 32 |
| 33 private CardboardVRDevice(Context context) { |
| 34 mHMDManager = new HeadMountedDisplayManager(context); |
| 35 |
| 36 mHeadTracker = HeadTracker.createFromContext(context); |
| 37 mHeadTracker.setNeckModelEnabled(true); |
| 38 mHeadTracker.startTracking(); |
| 39 } |
| 40 |
| 41 @CalledByNative |
| 42 private void getFieldOfView(float[] outFov) { |
| 43 HeadMountedDisplay hmd = mHMDManager.getHeadMountedDisplay(); |
| 44 CardboardDeviceParams deviceParams = hmd.getCardboardDeviceParams(); |
| 45 FieldOfView fov = deviceParams.getLeftEyeMaxFov(); |
| 46 outFov[0] = fov.getTop(); |
| 47 outFov[1] = fov.getBottom(); |
| 48 outFov[2] = fov.getLeft(); |
| 49 outFov[3] = fov.getRight(); |
| 50 } |
| 51 |
| 52 @CalledByNative |
| 53 private float getIpd() { |
| 54 HeadMountedDisplay hmd = mHMDManager.getHeadMountedDisplay(); |
| 55 CardboardDeviceParams deviceParams = hmd.getCardboardDeviceParams(); |
| 56 return deviceParams.getInterLensDistance(); |
| 57 } |
| 58 |
| 59 @CalledByNative |
| 60 private String getDeviceName() { |
| 61 HeadMountedDisplay hmd = mHMDManager.getHeadMountedDisplay(); |
| 62 CardboardDeviceParams deviceParams = hmd.getCardboardDeviceParams(); |
| 63 return deviceParams.getVendor() + " " + deviceParams.getModel(); |
| 64 } |
| 65 |
| 66 @CalledByNative |
| 67 private void getScreenSize(int[] outSize) { |
| 68 HeadMountedDisplay hmd = mHMDManager.getHeadMountedDisplay(); |
| 69 ScreenParams screenParams = hmd.getScreenParams(); |
| 70 outSize[0] = screenParams.getWidth(); |
| 71 outSize[1] = screenParams.getHeight(); |
| 72 } |
| 73 |
| 74 @CalledByNative |
| 75 private void getSensorState(float[] outMatrix) { |
| 76 mHeadTracker.getLastHeadView(outMatrix, 0); |
| 77 } |
| 78 |
| 79 @CalledByNative |
| 80 private void stopTracking() { |
| 81 mHeadTracker.stopTracking(); |
| 82 } |
| 83 |
| 84 @CalledByNative |
| 85 private void resetSensor() { |
| 86 mHeadTracker.resetTracker(); |
| 87 } |
| 88 } |
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