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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 #include "config.h" |
| 6 #include "modules/vr/VRHardwareUnit.h" |
| 7 |
| 8 #include "modules/vr/HMDVRDevice.h" |
| 9 #include "modules/vr/PositionSensorVRDevice.h" |
| 10 #include "modules/vr/VRDevice.h" |
| 11 #include "public/platform/Platform.h" |
| 12 |
| 13 namespace blink { |
| 14 |
| 15 VRHardwareUnit::VRHardwareUnit() |
| 16 : m_frameIndex(0) |
| 17 { |
| 18 m_positionState = VRPositionState::create(); |
| 19 m_currentFOVLeft = new VRFieldOfView(); |
| 20 m_currentFOVRight = new VRFieldOfView(); |
| 21 } |
| 22 |
| 23 VRHardwareUnit::~VRHardwareUnit() |
| 24 { |
| 25 } |
| 26 |
| 27 void VRHardwareUnit::updateFromWebVRDevice(const WebVRDevice& device) |
| 28 { |
| 29 m_index = device.index; |
| 30 m_hardwareUnitId = device.deviceId; |
| 31 |
| 32 if (device.flags & WebVRDeviceTypeHMD) { |
| 33 if (!m_hmd) |
| 34 m_hmd = new HMDVRDevice(this); |
| 35 m_hmd->updateFromWebVRDevice(device); |
| 36 } else if (m_hmd) { |
| 37 m_hmd.clear(); |
| 38 } |
| 39 |
| 40 if (device.flags & WebVRDeviceTypePosition) { |
| 41 if (!m_positionSensor) |
| 42 m_positionSensor = new PositionSensorVRDevice(this); |
| 43 m_positionSensor->updateFromWebVRDevice(device); |
| 44 } else if (m_positionSensor) { |
| 45 m_positionSensor.clear(); |
| 46 } |
| 47 } |
| 48 |
| 49 void VRHardwareUnit::addDevicesToVector(HeapVector<Member<VRDevice>>& vrDevices) |
| 50 { |
| 51 if (m_hmd) |
| 52 vrDevices.append(m_hmd); |
| 53 |
| 54 if (m_positionSensor) |
| 55 vrDevices.append(m_positionSensor); |
| 56 } |
| 57 |
| 58 VRPositionState* VRHardwareUnit::getPositionState() |
| 59 { |
| 60 blink::WebHMDSensorState state; |
| 61 blink::Platform::current()->getHMDSensorState(m_index, state); |
| 62 |
| 63 m_positionState->setState(state); |
| 64 m_frameIndex = state.frameIndex; |
| 65 |
| 66 return m_positionState; |
| 67 } |
| 68 |
| 69 void VRHardwareUnit::setFieldOfView(VREye eye, VRFieldOfView* fov) |
| 70 { |
| 71 switch (eye) { |
| 72 case VREyeLeft: |
| 73 m_currentFOVLeft->setFromVRFieldOfView(*fov); |
| 74 break; |
| 75 case VREyeRight: |
| 76 m_currentFOVRight->setFromVRFieldOfView(*fov); |
| 77 break; |
| 78 default: |
| 79 ASSERT_NOT_REACHED(); |
| 80 } |
| 81 } |
| 82 |
| 83 VRFieldOfView* VRHardwareUnit::getCurrentEyeFieldOfView(VREye eye) const |
| 84 { |
| 85 switch (eye) { |
| 86 case VREyeLeft: |
| 87 return new VRFieldOfView(*m_currentFOVLeft); |
| 88 case VREyeRight: |
| 89 return new VRFieldOfView(*m_currentFOVRight); |
| 90 default: |
| 91 ASSERT_NOT_REACHED(); |
| 92 return nullptr; |
| 93 } |
| 94 } |
| 95 |
| 96 void VRHardwareUnit::trace(Visitor* visitor) |
| 97 { |
| 98 visitor->trace(m_positionState); |
| 99 visitor->trace(m_currentFOVLeft); |
| 100 visitor->trace(m_currentFOVRight); |
| 101 visitor->trace(m_hmd); |
| 102 visitor->trace(m_positionSensor); |
| 103 } |
| 104 |
| 105 } // namespace blink |
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