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103 lines
3.9 KiB
C++
103 lines
3.9 KiB
C++
#ifndef OPENXR_MANAGER_IMPL_HPP
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#define OPENXR_MANAGER_IMPL_HPP
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#include "openxrmanager.hpp"
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#include "../mwinput/inputmanagerimp.hpp"
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#include <components/debug/debuglog.hpp>
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#include <components/sdlutil/sdlgraphicswindow.hpp>
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// The OpenXR SDK assumes we've included Windows.h
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#include <Windows.h>
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#include <openxr/openxr.h>
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#include <openxr/openxr_platform.h>
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#include <openxr/openxr_platform_defines.h>
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#include <openxr/openxr_reflection.h>
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#include <vector>
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#include <array>
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#include <map>
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#include <iostream>
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#include <thread>
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#include <chrono>
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namespace MWVR
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{
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// Error management macros and functions. Should be used on every openxr call.
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#define CHK_STRINGIFY(x) #x
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#define TOSTRING(x) CHK_STRINGIFY(x)
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#define FILE_AND_LINE __FILE__ ":" TOSTRING(__LINE__)
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#define CHECK_XRCMD(cmd) CheckXrResult(cmd, #cmd, FILE_AND_LINE);
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#define CHECK_XRRESULT(res, cmdStr) CheckXrResult(res, cmdStr, FILE_AND_LINE);
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XrResult CheckXrResult(XrResult res, const char* originator = nullptr, const char* sourceLocation = nullptr);
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std::string XrResultString(XrResult res);
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/// Conversion methods from openxr types to osg/mwvr types. Includes managing the differing conventions.
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MWVR::Pose fromXR(XrPosef pose);
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MWVR::FieldOfView fromXR(XrFovf fov);
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osg::Vec3 fromXR(XrVector3f);
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osg::Quat fromXR(XrQuaternionf quat);
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/// Conversion methods from osg/mwvr types to openxr types. Includes managing the differing conventions.
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XrPosef toXR(MWVR::Pose pose);
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XrFovf toXR(MWVR::FieldOfView fov);
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XrVector3f toXR(osg::Vec3 v);
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XrQuaternionf toXR(osg::Quat quat);
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XrCompositionLayerProjectionView toXR(MWVR::CompositionLayerProjectionView layer);
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struct OpenXRManagerImpl
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{
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OpenXRManagerImpl(void);
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~OpenXRManagerImpl(void);
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void waitFrame();
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void beginFrame();
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void endFrame(int64_t displayTime, int layerCount, const std::array<CompositionLayerProjectionView, 2>& layerStack);
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bool xrSessionRunning() const { return mSessionRunning; }
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std::array<View, 2> getPredictedViews(int64_t predictedDisplayTime, ReferenceSpace space);
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MWVR::Pose getPredictedHeadPose(int64_t predictedDisplayTime, ReferenceSpace space);
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void handleEvents();
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void enablePredictions();
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void disablePredictions();
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long long getLastPredictedDisplayTime();
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long long getLastPredictedDisplayPeriod();
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std::array<SwapchainConfig, 2> getRecommendedSwapchainConfig() const;
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XrSpace getReferenceSpace(ReferenceSpace space);
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XrSession xrSession() const { return mSession; };
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XrInstance xrInstance() const { return mInstance; };
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protected:
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void LogLayersAndExtensions();
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void LogInstanceInfo();
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void LogReferenceSpaces();
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const XrEventDataBaseHeader* nextEvent();
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void HandleSessionStateChanged(const XrEventDataSessionStateChanged& stateChangedEvent);
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private:
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bool initialized = false;
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bool mPredictionsEnabled = false;
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XrInstance mInstance = XR_NULL_HANDLE;
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XrSession mSession = XR_NULL_HANDLE;
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XrSpace mSpace = XR_NULL_HANDLE;
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XrFormFactor mFormFactor = XR_FORM_FACTOR_HEAD_MOUNTED_DISPLAY;
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XrViewConfigurationType mViewConfigType = XR_VIEW_CONFIGURATION_TYPE_PRIMARY_STEREO;
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XrEnvironmentBlendMode mEnvironmentBlendMode = XR_ENVIRONMENT_BLEND_MODE_OPAQUE;
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XrSystemId mSystemId = XR_NULL_SYSTEM_ID;
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XrGraphicsBindingOpenGLWin32KHR mGraphicsBinding{ XR_TYPE_GRAPHICS_BINDING_OPENGL_WIN32_KHR };
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XrSystemProperties mSystemProperties{ XR_TYPE_SYSTEM_PROPERTIES };
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std::array<XrViewConfigurationView, 2> mConfigViews{ { {XR_TYPE_VIEW_CONFIGURATION_VIEW}, {XR_TYPE_VIEW_CONFIGURATION_VIEW} } };
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XrSpace mReferenceSpaceView = XR_NULL_HANDLE;
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XrSpace mReferenceSpaceStage = XR_NULL_HANDLE;
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XrEventDataBuffer mEventDataBuffer{ XR_TYPE_EVENT_DATA_BUFFER };
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XrFrameState mFrameState{};
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XrSessionState mSessionState = XR_SESSION_STATE_UNKNOWN;
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bool mSessionRunning = false;
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std::mutex mFrameStateMutex{};
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std::mutex mEventMutex{};
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};
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}
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#endif
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