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| 1 // Copyright 2014 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 #ifndef WebVR_h |
| 6 #define WebVR_h |
| 7 |
| 8 #include "WebCommon.h" |
| 9 |
| 10 #if BLINK_IMPLEMENTATION |
| 11 #include "wtf/Assertions.h" |
| 12 #endif |
| 13 |
| 14 namespace blink { |
| 15 |
| 16 #pragma pack(push, 1) |
| 17 |
| 18 struct WebVRVector3 { |
| 19 float x, y, z; |
| 20 }; |
| 21 |
| 22 struct WebVRVector4 { |
| 23 float x, y, z, w; |
| 24 }; |
| 25 |
| 26 struct WebVRFieldOfView { |
| 27 float upDegrees; |
| 28 float downDegrees; |
| 29 float leftDegrees; |
| 30 float rightDegrees; |
| 31 }; |
| 32 |
| 33 enum WebVRSensorState { |
| 34 WebVRSensorStateOrientation = 1 << 1, |
| 35 WebVRSensorStatePosition = 1 << 2, |
| 36 WebVRSensorStateAngularVelocity = 1 << 3, |
| 37 WebVRSensorStateLinearVelocity = 1 << 4, |
| 38 WebVRSensorStateAngularAcceleration = 1 << 5, |
| 39 WebVRSensorStateLinearAcceleration = 1 << 6, |
| 40 WebVRSensorStateComplete = (1 << 7) - 1 // All previous states combined |
| 41 }; |
| 42 |
| 43 // A bitfield of WebVRSensorState |
| 44 typedef int WebVRSensorStateMask; |
| 45 |
| 46 enum WebVRDeviceType { |
| 47 WebVRDeviceTypePosition = 1 << 1, |
| 48 WebVRDeviceTypeHMD = 1 << 2 |
| 49 }; |
| 50 |
| 51 // A bitfield of WebVRDeviceType |
| 52 typedef int WebVRDeviceTypeMask; |
| 53 |
| 54 class WebHMDSensorState { |
| 55 public: |
| 56 WebHMDSensorState() |
| 57 { |
| 58 } |
| 59 |
| 60 double timestamp; |
| 61 unsigned frameIndex; |
| 62 WebVRSensorStateMask flags; |
| 63 WebVRVector4 orientation; |
| 64 WebVRVector3 position; |
| 65 WebVRVector3 angularVelocity; |
| 66 WebVRVector3 linearVelocity; |
| 67 WebVRVector3 angularAcceleration; |
| 68 WebVRVector3 linearAcceleration; |
| 69 }; |
| 70 |
| 71 struct WebVRHMDInfo { |
| 72 WebVRFieldOfView recommendedFOVLeft; |
| 73 WebVRFieldOfView recommendedFOVRight; |
| 74 WebVRFieldOfView maximumFOVLeft; |
| 75 WebVRFieldOfView maximumFOVRight; |
| 76 WebVRVector3 eyeTranslationLeft; |
| 77 WebVRVector3 eyeTranslationRight; |
| 78 }; |
| 79 |
| 80 class WebVRDevice { |
| 81 public: |
| 82 static const size_t deviceIdLengthCap = 128; |
| 83 static const size_t deviceNameLengthCap = 128; |
| 84 |
| 85 WebVRDevice() |
| 86 : flags(0) |
| 87 { |
| 88 deviceId[0] = 0; |
| 89 deviceName[0] = 0; |
| 90 } |
| 91 |
| 92 // Index for this hardware unit |
| 93 unsigned index; |
| 94 // Device identifier (based on manufacturer, model, etc.). |
| 95 WebUChar deviceId[deviceIdLengthCap]; |
| 96 // Friendly device name |
| 97 WebUChar deviceName[deviceNameLengthCap]; |
| 98 |
| 99 WebVRDeviceTypeMask flags; |
| 100 |
| 101 // Will only contain valid data if (flags & HasHMDDevice) |
| 102 WebVRHMDInfo hmdInfo; |
| 103 }; |
| 104 |
| 105 #pragma pack(pop) |
| 106 |
| 107 } |
| 108 |
| 109 #endif // WebVR_h |
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