Showing the changes to plugins/oculus/src/OculusBaseDisplayPlugin.cpp (1 of 47 files). Show all
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| 1 | +// | |
| 2 | +// Created by Bradley Austin Davis on 2014/04/13. | |
| 3 | +// Copyright 2015 High Fidelity, Inc. | |
| 4 | +// | |
| 5 | +// Distributed under the Apache License, Version 2.0. | |
| 6 | +// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html | |
| 7 | +// | |
| 8 | +#include "OculusBaseDisplayPlugin.h" | |
| 9 | + | |
| 10 | +#include <ViewFrustum.h> | |
| 11 | + | |
| 12 | +#include "OculusHelpers.h" | |
| 13 | + | |
| 14 | +uvec2 OculusBaseDisplayPlugin::getRecommendedRenderSize() const { | |
| 15 | + return _desiredFramebufferSize; | |
| 16 | +} | |
| 17 | + | |
| 18 | +void OculusBaseDisplayPlugin::preRender() { | |
| 19 | +#if (OVR_MAJOR_VERSION >= 6) | |
| 20 | + ovrFrameTiming ftiming = ovr_GetFrameTiming(_hmd, _frameIndex); | |
| 21 | + _trackingState = ovr_GetTrackingState(_hmd, ftiming.DisplayMidpointSeconds); | |
| 22 | +#endif | |
| 23 | +} | |
| 24 | + | |
| 25 | +glm::mat4 OculusBaseDisplayPlugin::getProjection(Eye eye, const glm::mat4& baseProjection) const { | |
| 26 | + return _eyeProjections[eye]; | |
| 27 | +} | |
| 28 | + | |
| 29 | +void OculusBaseDisplayPlugin::resetSensors() { | |
| 30 | +#if (OVR_MAJOR_VERSION >= 6) | |
| 31 | + ovr_RecenterPose(_hmd); | |
| 32 | +#endif | |
| 33 | +} | |
| 34 | + | |
| 35 | +glm::mat4 OculusBaseDisplayPlugin::getEyeToHeadTransform(Eye eye) const { | |
| 36 | + return glm::translate(mat4(), toGlm(_eyeOffsets[eye])); | |
| 37 | +} | |
| 38 | + | |
| 39 | +glm::mat4 OculusBaseDisplayPlugin::getHeadPose() const { | |
| 40 | + return toGlm(_trackingState.HeadPose.ThePose); | |
| 41 | +} | |
| 42 | + | |
| 43 | +void OculusBaseDisplayPlugin::setEyeRenderPose(Eye eye, const glm::mat4& pose) { | |
| 44 | + _eyePoses[eye] = ovrPoseFromGlm(pose); | |
| 45 | +} | |
| 46 | + | |
| 47 | + | |
| 48 | +bool OculusBaseDisplayPlugin::isSupported() const { | |
| 49 | +#if (OVR_MAJOR_VERSION >= 6) | |
| 50 | + if (!OVR_SUCCESS(ovr_Initialize(nullptr))) { | |
| 51 | + return false; | |
| 52 | + } | |
| 53 | + bool result = false; | |
| 54 | + if (ovrHmd_Detect() > 0) { | |
| 55 | + result = true; | |
| 56 | + } | |
| 57 | + ovr_Shutdown(); | |
| 58 | + return result; | |
| 59 | +#else | |
| 60 | + return false; | |
| 61 | +#endif | |
| 62 | +} | |
| 63 | + | |
| 64 | +// DLL based display plugins MUST initialize GLEW inside the DLL code. | |
| 65 | +void OculusBaseDisplayPlugin::customizeContext() { | |
| 66 | + glewExperimental = true; | |
| 67 | + GLenum err = glewInit(); | |
| 68 | + glGetError(); | |
| 69 | + WindowOpenGLDisplayPlugin::customizeContext(); | |
| 70 | +} | |
| 71 | + | |
| 72 | +void OculusBaseDisplayPlugin::init() { | |
| 73 | +} | |
| 74 | + | |
| 75 | +void OculusBaseDisplayPlugin::deinit() { | |
| 76 | +} | |
| 77 | + | |
| 78 | +void OculusBaseDisplayPlugin::activate() { | |
| 79 | +#if (OVR_MAJOR_VERSION >= 6) | |
| 80 | + if (!OVR_SUCCESS(ovr_Initialize(nullptr))) { | |
| 81 | + qFatal("Could not init OVR"); | |
| 82 | + } | |
| 83 | + | |
| 84 | +#if (OVR_MAJOR_VERSION == 6) | |
| 85 | + if (!OVR_SUCCESS(ovr_Create(0, &_hmd))) { | |
| 86 | +#elif (OVR_MAJOR_VERSION == 7) | |
| 87 | + if (!OVR_SUCCESS(ovr_Create(&_hmd, &_luid))) { | |
| 88 | +#endif | |
| 89 | + Q_ASSERT(false); | |
| 90 | + qFatal("Failed to acquire HMD"); | |
| 91 | + } | |
| 92 | + | |
| 93 | + _hmdDesc = ovr_GetHmdDesc(_hmd); | |
| 94 | + | |
| 95 | + _ipd = ovr_GetFloat(_hmd, OVR_KEY_IPD, _ipd); | |
| 96 | + | |
| 97 | + glm::uvec2 eyeSizes[2]; | |
| 98 | + ovr_for_each_eye([&](ovrEyeType eye) { | |
| 99 | + _eyeFovs[eye] = _hmdDesc.DefaultEyeFov[eye]; | |
| 100 | + ovrEyeRenderDesc& erd = _eyeRenderDescs[eye] = ovr_GetRenderDesc(_hmd, eye, _eyeFovs[eye]); | |
| 101 | + ovrMatrix4f ovrPerspectiveProjection = | |
| 102 | + ovrMatrix4f_Projection(erd.Fov, DEFAULT_NEAR_CLIP, DEFAULT_FAR_CLIP, ovrProjection_RightHanded); | |
| 103 | + _eyeProjections[eye] = toGlm(ovrPerspectiveProjection); | |
| 104 | + | |
| 105 | + ovrPerspectiveProjection = | |
| 106 | + ovrMatrix4f_Projection(erd.Fov, 0.001f, 10.0f, ovrProjection_RightHanded); | |
| 107 | + _compositeEyeProjections[eye] = toGlm(ovrPerspectiveProjection); | |
| 108 | + | |
| 109 | + _eyeOffsets[eye] = erd.HmdToEyeViewOffset; | |
| 110 | + eyeSizes[eye] = toGlm(ovr_GetFovTextureSize(_hmd, eye, erd.Fov, 1.0f)); | |
| 111 | + }); | |
| 112 | + ovrFovPort combined = _eyeFovs[Left]; | |
| 113 | + combined.LeftTan = std::max(_eyeFovs[Left].LeftTan, _eyeFovs[Right].LeftTan); | |
| 114 | + combined.RightTan = std::max(_eyeFovs[Left].RightTan, _eyeFovs[Right].RightTan); | |
| 115 | + ovrMatrix4f ovrPerspectiveProjection = | |
| 116 | + ovrMatrix4f_Projection(combined, DEFAULT_NEAR_CLIP, DEFAULT_FAR_CLIP, ovrProjection_RightHanded); | |
| 117 | + _eyeProjections[Mono] = toGlm(ovrPerspectiveProjection); | |
| 118 | + | |
| 119 | + | |
| 120 | + | |
| 121 | + _desiredFramebufferSize = uvec2( | |
| 122 | + eyeSizes[0].x + eyeSizes[1].x, | |
| 123 | + std::max(eyeSizes[0].y, eyeSizes[1].y)); | |
| 124 | + | |
| 125 | + _frameIndex = 0; | |
| 126 | + | |
| 127 | + if (!OVR_SUCCESS(ovr_ConfigureTracking(_hmd, | |
| 128 | + ovrTrackingCap_Orientation | ovrTrackingCap_Position | ovrTrackingCap_MagYawCorrection, 0))) { | |
| 129 | + qFatal("Could not attach to sensor device"); | |
| 130 | + } | |
| 131 | + | |
| 132 | + // Parent class relies on our _hmd intialization, so it must come after that. | |
| 133 | + memset(&_sceneLayer, 0, sizeof(ovrLayerEyeFov)); | |
| 134 | + _sceneLayer.Header.Type = ovrLayerType_EyeFov; | |
| 135 | + _sceneLayer.Header.Flags = ovrLayerFlag_TextureOriginAtBottomLeft; | |
| 136 | + ovr_for_each_eye([&](ovrEyeType eye) { | |
| 137 | + ovrFovPort & fov = _sceneLayer.Fov[eye] = _eyeRenderDescs[eye].Fov; | |
| 138 | + ovrSizei & size = _sceneLayer.Viewport[eye].Size = ovr_GetFovTextureSize(_hmd, eye, fov, 1.0f); | |
| 139 | + _sceneLayer.Viewport[eye].Pos = { eye == ovrEye_Left ? 0 : size.w, 0 }; | |
| 140 | + }); | |
| 141 | + | |
| 142 | + if (!OVR_SUCCESS(ovr_ConfigureTracking(_hmd, | |
| 143 | + ovrTrackingCap_Orientation | ovrTrackingCap_Position | ovrTrackingCap_MagYawCorrection, 0))) { | |
| 144 | + qFatal("Could not attach to sensor device"); | |
| 145 | + } | |
| 146 | +#endif | |
| 147 | + | |
| 148 | + WindowOpenGLDisplayPlugin::activate(); | |
| 149 | +} | |
| 150 | + | |
| 151 | +void OculusBaseDisplayPlugin::deactivate() { | |
| 152 | + WindowOpenGLDisplayPlugin::deactivate(); | |
| 153 | + | |
| 154 | +#if (OVR_MAJOR_VERSION >= 6) | |
| 155 | + ovr_Destroy(_hmd); | |
| 156 | + _hmd = nullptr; | |
| 157 | + ovr_Shutdown(); | |
| 158 | +#endif | |
| 159 | +} | |
| 160 | + | |
| 161 | +void OculusBaseDisplayPlugin::display(GLuint finalTexture, const glm::uvec2& sceneSize) { | |
| 162 | + ++_frameIndex; | |
| 163 | +} | |
| 164 | + | |
| 165 | +float OculusBaseDisplayPlugin::getIPD() const { | |
| 166 | + float result = OVR_DEFAULT_IPD; | |
| 167 | +#if (OVR_MAJOR_VERSION >= 6) | |
| 168 | + result = ovr_GetFloat(_hmd, OVR_KEY_IPD, result); | |
| 169 | +#endif | |
| 170 | + return result; | |
| 171 | +} | |