OgreOpenXRState.h

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/*
    Skyscraper 2.0 - OpenXR State
    Portions Copyright (C)2024 Ryan Thoryk
    MIT license - see LICENSE file
    https://www.skyscrapersim.net
    https://sourceforge.net/projects/skyscraper/
    Contact - ryan@skyscrapersim.net
*/
 
/*
    Original work produced by Glastonbridge Software Limited. This code is provided under the MIT license.
    https://github.com/glastonbridge/OgreOpenXRRenderWindow
*/
 
#pragma once
 
#include <vector>
#include <string>
 
#include "RenderSystems/Direct3D11/OgreD3D11Prerequisites.h"
 
#include "OgreOpenXRConfig.h"
 
#include "RenderSystems/Direct3D11/OgreD3D11Device.h"
 
#include <openxr/openxr.h>
#include "XrUtility/XrHandle.h"
#include "XrUtility/XrError.h"
#include "XrUtility/XrDispatchTable.h"
#include <winrt/base.h>
#include <memory>
#include "OgreOpenXRInstance.h"
 
namespace Ogre {
 
  class OpenXRState {
  public:
    OpenXRState();
    void Initialize(const std::string& applicationName);
    void InitializeSystem();
    const LUID GetAdapterLUID();
    xr::SessionHandle& GetSession();
    const xr::InstanceHandle& GetInstanceHandle();
    const uint64_t GetSystemId();
    void GetSystemProperties(XrSystemProperties& systemProperties);
    std::tuple<DXGI_FORMAT, DXGI_FORMAT> SelectSwapchainPixelFormats();
    void initializeSession(D3D11Device& device);
    constexpr static XrViewConfigurationType primaryViewConfigType{ XR_VIEW_CONFIGURATION_TYPE_PRIMARY_STEREO };
    XrEnvironmentBlendMode* GetEnvironmentBlendModes();
    xr::SpaceHandle& getAppSpace();
 
  private:
    std::unique_ptr<OpenXRInstance> m_xrInstance;
    uint64_t _systemId;
    xr::SessionHandle _sessionHandle;
    std::vector<XrEnvironmentBlendMode> environmentBlendModes;
 
    constexpr static XrFormFactor _formFactor{ XR_FORM_FACTOR_HEAD_MOUNTED_DISPLAY };
 
    xr::SpaceHandle _appSpace;
    XrReferenceSpaceType _appSpaceType{ XR_REFERENCE_SPACE_TYPE_LOCAL };
  };
}