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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/HMDVRDevice.h" |
| 7 |
| 8 #include "modules/vr/VRFieldOfView.h" |
| 9 #include "public/platform/Platform.h" |
| 10 #include "public/platform/WebSize.h" |
| 11 |
| 12 namespace blink { |
| 13 |
| 14 HMDVRDevice::HMDVRDevice(VRHardwareUnit* hardwareUnit) |
| 15 : VRDevice(hardwareUnit) |
| 16 , m_dirtyFov(true) |
| 17 { |
| 18 m_eyeParametersLeft = VREyeParameters::create(); |
| 19 m_eyeParametersRight = VREyeParameters::create(); |
| 20 } |
| 21 |
| 22 VREye HMDVRDevice::StringToVREye(const String& whichEye) |
| 23 { |
| 24 if (whichEye == "left") |
| 25 return VREyeLeft; |
| 26 if (whichEye == "right") |
| 27 return VREyeRight; |
| 28 return VREyeNone; |
| 29 } |
| 30 |
| 31 void HMDVRDevice::updateFromWebVRDevice(const WebVRDevice& device) |
| 32 { |
| 33 VRDevice::updateFromWebVRDevice(device); |
| 34 const blink::WebVRHMDInfo &hmdInfo = device.hmdInfo; |
| 35 |
| 36 m_eyeParametersLeft->setFromWebVREyeParameters(hmdInfo.leftEye); |
| 37 m_eyeParametersRight->setFromWebVREyeParameters(hmdInfo.rightEye); |
| 38 } |
| 39 |
| 40 VREyeParameters* HMDVRDevice::getEyeParameters(const String& whichEye) |
| 41 { |
| 42 // If we have updated the field of view since the last call recompute the re
nder rects. |
| 43 if (m_dirtyFov) { |
| 44 blink::WebVRVector4 leftRect, rightRect; |
| 45 blink::Platform::current()->getVRRenderTargetRects(index(), |
| 46 m_eyeParametersLeft->currentFieldOfView()->toWebVRFieldOfView(), |
| 47 m_eyeParametersRight->currentFieldOfView()->toWebVRFieldOfView(), |
| 48 &leftRect, |
| 49 &rightRect); |
| 50 |
| 51 m_eyeParametersLeft->setRenderRect(leftRect.x, leftRect.y, leftRect.z, l
eftRect.w); |
| 52 m_eyeParametersRight->setRenderRect(rightRect.x, rightRect.y, rightRect.
z, rightRect.w); |
| 53 |
| 54 m_dirtyFov = false; |
| 55 } |
| 56 |
| 57 switch (StringToVREye(whichEye)) { |
| 58 case VREyeLeft: |
| 59 return m_eyeParametersLeft; |
| 60 case VREyeRight: |
| 61 return m_eyeParametersRight; |
| 62 default: |
| 63 return nullptr; |
| 64 } |
| 65 } |
| 66 |
| 67 void HMDVRDevice::setFieldOfView(VRFieldOfView* leftFov, VRFieldOfView* rightFov
) |
| 68 { |
| 69 m_dirtyFov = true; |
| 70 |
| 71 // FIXME: Clamp to maxFOV |
| 72 if (leftFov) { |
| 73 hardwareUnit()->setFieldOfView(VREyeLeft, leftFov); |
| 74 m_eyeParametersLeft->setCurrentFieldOfView(leftFov); |
| 75 } else { |
| 76 hardwareUnit()->setFieldOfView(VREyeLeft, m_eyeParametersLeft->recommend
edFieldOfView()); |
| 77 m_eyeParametersLeft->setCurrentFieldOfView(m_eyeParametersLeft->recommen
dedFieldOfView()); |
| 78 } |
| 79 |
| 80 if (rightFov) { |
| 81 hardwareUnit()->setFieldOfView(VREyeRight, rightFov); |
| 82 m_eyeParametersLeft->setCurrentFieldOfView(rightFov); |
| 83 } else { |
| 84 hardwareUnit()->setFieldOfView(VREyeRight, m_eyeParametersRight->recomme
ndedFieldOfView()); |
| 85 m_eyeParametersRight->setCurrentFieldOfView(m_eyeParametersRight->recomm
endedFieldOfView()); |
| 86 } |
| 87 } |
| 88 |
| 89 void HMDVRDevice::trace(Visitor* visitor) |
| 90 { |
| 91 visitor->trace(m_eyeParametersLeft); |
| 92 visitor->trace(m_eyeParametersRight); |
| 93 |
| 94 VRDevice::trace(visitor); |
| 95 } |
| 96 |
| 97 } // namespace blink |
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