HMDDevice.hpp

#pragma once

#include <chrono>
#include "cmath_fix.h"

#include <linalg.h>

#include <Driver/IVRDevice.hpp>
#include <Native/DriverFactory.hpp>

namespace ExampleDriver {
    class HMDDevice : public IVRDevice, public vr::IVRDisplayComponent {
        public:
            HMDDevice(std::string serial);
            ~HMDDevice() = default;

            // Inherited via IVRDevice
            virtual std::string GetSerial() override;
            virtual void Update() override;
            virtual vr::TrackedDeviceIndex_t GetDeviceIndex() override;
            virtual DeviceType GetDeviceType() override;

            virtual vr::EVRInitError Activate(uint32_t unObjectId) override;
            virtual void Deactivate() override;
            virtual void EnterStandby() override;
            virtual void* GetComponent(const char* pchComponentNameAndVersion) override;
            virtual void DebugRequest(const char* pchRequest, char* pchResponseBuffer, uint32_t unResponseBufferSize) override;
            virtual vr::DriverPose_t GetPose() override;

            // Inherited via IVRDisplayComponent
            virtual void GetWindowBounds(int32_t* pnX, int32_t* pnY, uint32_t* pnWidth, uint32_t* pnHeight) override;
            virtual bool IsDisplayOnDesktop() override;
            virtual bool IsDisplayRealDisplay() override;
            virtual void GetRecommendedRenderTargetSize(uint32_t* pnWidth, uint32_t* pnHeight) override;
            virtual void GetEyeOutputViewport(vr::EVREye eEye, uint32_t* pnX, uint32_t* pnY, uint32_t* pnWidth, uint32_t* pnHeight) override;
            virtual void GetProjectionRaw(vr::EVREye eEye, float* pfLeft, float* pfRight, float* pfTop, float* pfBottom) override;
            virtual vr::DistortionCoordinates_t ComputeDistortion(vr::EVREye eEye, float fU, float fV) override;
    private:
        vr::TrackedDeviceIndex_t device_index_ = vr::k_unTrackedDeviceIndexInvalid;
        std::string serial_;

        vr::DriverPose_t last_pose_ = IVRDevice::MakeDefaultPose();

        uint32_t window_x_ = 0;
        uint32_t window_y_ = 0;
        uint32_t window_width_ = 1920;
        uint32_t window_height_ = 1080;

        float pos_x_ = 0, pos_y_ = 0, pos_z_ = 0;
        float rot_y_ = 0, rot_x_ = 0;

    };
};