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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: | |
Mike West
2015/03/17 05:25:26
Nit: Here and elsewhere (like VRHardwareUnit::getF
| |
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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