#define ENABLE_LOG

using InfraredManager;
using o0;
using Serenegiant.UVC;
using System;
using System.Collections.Generic;
using System.Linq;
using UnityEngine;
using UnityEngine.UI;
using ZIM;
using ZIM.Unity;
using static Serenegiant.UVC.UVCManager;
using Color = UnityEngine.Color;

[RequireComponent(typeof(Canvas))]
public partial class ScreenLocate : MonoBehaviour
{
    public InfraredCameraHelper InfraredCameraHelper;
    private const string TAG = "ScreenLocate#";
    enum Mode
    {
        InfraredLocate,
        ScreenMap,
        ScreenLocateManual
    }
    enum InfraredCount
    {
        Single,
        Double
    }
    enum Platform
    {
        Window,
        Android
    }
    Platform mPlatform = Platform.Android;

    // 2个灯，顺序根据红外灯的大小 由大到小， 坐标通过 InfraredSpot.ScreenUV 和 InfraredSpot.CameraLocation 获得
    public InfraredSpot[] InfraredSpots
    {
        get
        {
            infraredCount = InfraredCount.Double;
            return infraredSpotBuffer;
        }
    }
    // 1个灯, 坐标通过 InfraredSpot.ScreenUV 和 InfraredSpot.CameraLocation 获得
    public InfraredSpot InfraredSpotSingle
    {
        get
        {
            infraredCount = InfraredCount.Single;
            return infraredSpotBuffer[0];
        }
    }
    public InfraredSpot[] infraredSpotBuffer;
    InfraredCount infraredCount;
    public string GetInfraredCount() { return infraredCount.ToString(); }

    public InfraredDemo InfraredDemoMain => FindObjectOfType<InfraredDemo>();

    #region UVC 处理的对象
    public UVCManager mUVCManager;
    public UVCDrawer mUVCDrawer;
    public CameraInfo mUVCCameraInfo;
    public bool getUVCCameraInfo => mUVCCameraInfo != null ? true : false;

    public Vector2 getUVCCameraInfoSize => getUVCCameraInfo ? mUVCCameraInfo.Size : new Vector2(256, 256);

    private Texture mUVCTexture;
    public Texture getUVCTexture => mUVCTexture;

    private Texture2D mUVCTexture2D;
    // [SerializeField] Texture2DArray mUVCOutArray;
    #endregion

    public Text Info;
    public List<RectTransform> CrosshairInCamera;
    public List<RectTransform> CrosshairInScreen;
    public RectTransform ScreenQuad;
    public Toggle SaveToggle;

    public Vector2 ScreenLocateCameraSize;       // 屏幕识别需要的目标分辨率，摄像机分辨率变化时该分辨率也会跟着调整

    public bool ShowScreenQuad = false;

    public RawImage rawImage;
    public RawImage rawImage1;
    public RawImage rawImage2;
    public RawImage rawImage3;
    public RawImage rawImage4;
    public RawImage rawImage5;
    public RawImage FullScreenImage;

    public InfraredSpotSettings InfraredSpotSettings;

    //public ZIMWebCamera zimWebCamera => GetComponent<ZIMWebCamera>();

    public Texture2D DebugScreenImage;
    public bool DebugOnEditorWin = false;

    // private SynchronizationContext mainContext;

    //是否单点显示
    public bool bSinglePoint = true;//默认单点识别

    bool bIdentifyRed = true;//默认设备红色

    bool bIdentifyGreen = true;

    #region 性能检测相关
    public Text m_UITime;
    const float m_UIUpdateInterval = 0.1f;
    float m_UIUpdateTimer = 0.0f;
    List<float> m_History = new List<float>(100);
    int m_ValidHistoryFrames = 0;
    float m_AverageTime = float.NaN;
    float m_MedianTime = float.NaN;
    float m_MinTime = float.NaN;
    float m_MaxTime = float.NaN;

    public float updateInterval = 0.5F;
    private double lastInterval;
    private int frames = 0;
    private float fps;
    public Text m_FPS;
    #endregion


    InfraredLocate infraredLocate;
    RectTransform canvas;
    Mode mode;
    List<Vector2> pointManual = new List<Vector2>();

    //o0.Project.WebCam o0WebCam = null;
    o0.Project.ScreenIdentification screenIdentification;
    public o0.Project.ScreenIdentification getScreenIdentification => screenIdentification;

    static public ScreenLocate Main;
    static public List<RawImage> DebugImage = new List<RawImage>();
    static public RectTransform BackQuad = null;
    static public void DebugTexture(int index, Texture texture)
    {
        Destroy(DebugImage[index].texture);
        DebugImage[index].texture = texture;
    }
    static public void SetScreen(UnityEngine.Color? color = null)
    {
        if (BackQuad == null)
        {
            var canvas = GameObject.Find("WebCameraView").GetComponent<RectTransform>();
            var background = canvas.Find("Background");
            BackQuad = background.GetChild(0).GetComponent<RectTransform>();
        }
        BackQuad.parent.gameObject.SetActive(color != null);
        BackQuad.GetComponent<RawImage>().color = color ?? Color.black;
        Debug.Log("Set Screen " + color.GetColorName());
    }
    static public void SetScreen(Rect rect, UnityEngine.Color? color = null)
    {
        if (BackQuad == null)
        {
            var canvas = GameObject.Find("WebCameraView").GetComponent<RectTransform>();
            var background = canvas.Find("Background");
            BackQuad = background.GetChild(0).GetComponent<RectTransform>();
        }
        BackQuad.parent.gameObject.SetActive(color != null);
        BackQuad.anchorMin = rect.min;
        BackQuad.anchorMax = rect.max;
        BackQuad.GetComponent<RawImage>().color = color ?? Color.black;
        Debug.Log("Set Screen " + color.GetColorName());
    }
    static void DebugBackQuad(Rect? rect = null)
    {
        if (BackQuad)
        {
            BackQuad.parent.GetComponent<RawImage>().enabled = false;
            BackQuad.GetComponent<RawImage>().color = Color.white;
            BackQuad.parent.gameObject.SetActive(!BackQuad.parent.gameObject.activeSelf);
            if (rect.HasValue)
            {
                BackQuad.anchorMin = rect.Value.min;
                BackQuad.anchorMax = rect.Value.max;
            }
        }
    }

    public void ReSizeTexture(int width, int height)
    {
        Debug.Log("Cur mUVCTexture Size: " + mUVCTexture);
        return;
        if (mUVCTexture.width < width || mUVCTexture.height < height)       // 如果当前分辨率太小，则重新new一个texture
        {
            Texture2D tex = new Texture2D(
                            width, height,
                            TextureFormat.ARGB32,
                            false, /* mipmap */
                            true /* linear */);
            tex.filterMode = FilterMode.Point;
            tex.Apply();
            mUVCTexture = tex;
            mUVCCameraInfo.previewTexture = tex;
            var nativeTexPtr = mUVCCameraInfo.previewTexture.GetNativeTexturePtr();
        }
    }

    void Awake()
    {
        Main = this;

#if !UNITY_EDITOR_WIN
        DebugOnEditorWin = false;
#endif

        //if (mUVCDrawer)
        //    mUVCDrawer.StartPreviewAction += UVCIsReady;
    }

    void OnDestroy()
    {
        //if (mUVCDrawer)
        //    mUVCDrawer.StartPreviewAction -= UVCIsReady;
    }

    void Start()
    {
        //mainContext = SynchronizationContext.Current;

        DebugImage.Add(rawImage);
        DebugImage.Add(rawImage1);
        DebugImage.Add(rawImage2);
        DebugImage.Add(rawImage3);
        DebugImage.Add(rawImage4);
        DebugImage.Add(rawImage5);
        DebugImage.Add(FullScreenImage);

        canvas = transform.GetComponent<RectTransform>();

        mode = Mode.InfraredLocate;

        //if (DebugScreenImage)
        //{
        //    screenIdentification = new o0.Project.ScreenIdentification(new o0.Geometry2D.Vector<int>(DebugScreenImage.width, DebugScreenImage.height));

        //    WebCamIsReady(DebugScreenImage);
        //    screenIdentification.LocateScreen();
        //}

        infraredCount = InfraredCount.Single;

        #region 性能检测相关
        for (var i = 0; i < m_History.Capacity; ++i)
        {
            m_History.Add(0.0f);
        }
        lastInterval = Time.realtimeSinceStartup;
        frames = 0;
        #endregion
    }

    //ZIMWebCamera场景使用
    public void WebCamIsReady(Texture texture)
    {
        mPlatform = Platform.Window;
        mUVCTexture = texture;
        mUVCCameraInfo = new CameraInfo(mUVCTexture);
        brightness = 0;

        //UVC准备好
        InfraredCameraHelper?.InvokeOnUVCIsReady(mUVCCameraInfo);
    }

    //手机端UVCCamra使用
    public void UVCIsReady(Texture texture)
    {
        mPlatform = Platform.Android;
        //this.startUVCBtn.interactable = true;

        mUVCTexture = texture;
        //ARGB32
        //mUVCTexture2D = Texture2D.CreateExternalTexture(texture.width, texture.height, TextureFormat.ARGB32, false, true, texture.GetNativeTexturePtr()); //TextureToTexture2D(texture);
        //Debug.Log("mUVCTexture2D isReable:" + mUVCTexture2D.isReadable);
        //Debug.Log("mUVCTexture2D mipmapCount:" + (mUVCTexture2D.mipmapCount > 1));

        List<CameraInfo> cameraInfos = mUVCManager.GetAttachedDevices();
        mUVCCameraInfo = cameraInfos[cameraInfos.Count - 1];

        Debug.Log("mUVCCameraInfo InvokeOnUVCIsReady:" + mUVCCameraInfo);
        //UVC准备好
        InfraredCameraHelper?.InvokeOnUVCIsReady(mUVCCameraInfo);
    }
    public void startUVC()
    {

    }
    int brightness = 0;
    //public Text brightnessText;
    //public void SliderBrightness(Slider slider)
    //{
    //    var _value = slider.value;
    //    brightness = (int)_value;
    //    brightnessText.text = (2 + brightness) + "";
    //}

    public void SetInfraredLocateBrightnessThreshold(float value)
    {

        if (infraredLocate != null)
        {
            if (value >= 0 && value <= 1)
                infraredLocate.SetBrightnessThreshold(value);     // 参数是 红外灯的亮度阈值，阈值越小能够检测到的亮度就越低，默认值是0.93
        }
    }

    void Update()
    {
        ++frames;
        float timeNow = Time.realtimeSinceStartup;
        if (timeNow > lastInterval + updateInterval)
        {
            fps = (float)(frames / (timeNow - lastInterval));
            frames = 0;
            lastInterval = timeNow;
        }

        if (m_FPS != null)
            m_FPS.text = "FPS:" + fps.ToString("f2");

        if (mUVCCameraInfo == null) return;

        if (screenIdentification == null)
        {
            screenIdentification = new o0.Project.ScreenIdentification();
            screenIdentification.OnLocateScreenEnter += OnLocateScreenEnter;
            screenIdentification.OnLocateScreenEnd += OnLocateScreenEnd;
        }
        if (infraredLocate == null)
        {
            infraredLocate = new InfraredLocate(mUVCCameraInfo, screenIdentification, InfraredSpotSettings);
            float redfilterValue = PlayerPrefs.GetFloat("Init redFilterSliderValue", 0.8f);
            Debug.Log("Init Red filterValue:" + redfilterValue);
            infraredLocate.SetBrightnessThreshold(redfilterValue);     // 参数是 红外灯的亮度阈值，阈值越小能够检测到的亮度就越低，默认值是0.93
        }

        if (screenIdentification.Screen.RefreshCameraSize(getUVCCameraInfoSize))       // 同步分辨率, 分辨率变化后还需同步到InfraredDemo
        {
            ScreenLocate.quadUnityVectorList = screenIdentification.Screen.QuadInCamera.GetUnityVertexList();
            SyncInfraredDemo();
        }

        if (mode == Mode.ScreenLocateManual)
        {
            //if (Input.GetMouseButtonDown(0))
            //{
            //    var mouse = Input.mousePosition;
            //    var u = mouse.x / Screen.width;
            //    var v = mouse.y / Screen.height;
            //    u = Math.Clamp(u, 0, 1);
            //    v = Math.Clamp(v, 0, 1);
            //    pointManual.Add(new Vector2(u * mUVCTexture.width, v * mUVCTexture.height));
            //    var obj = Instantiate(Resources.Load("Point")) as GameObject;
            //    obj.transform.SetParent(FullScreenImage.transform);
            //    obj.transform.localPosition = new Vector2(u, v).pixelToLocalPosition_AnchorCenter(new Vector2(1, 1), FullScreenImage.rectTransform.rect);

            //    if (pointManual.Count == 1)
            //        Info.text = "左键单击屏幕 右下角";
            //    else if (pointManual.Count == 2)
            //        Info.text = "左键单击屏幕 右上角";
            //    else if (pointManual.Count == 3)
            //        Info.text = "左键单击屏幕 左上角";
            //    else if (pointManual.Count == 4)
            //    {
            //        screenIdentification.LocateScreenManual(new OrdinalQuadrilateral(pointManual[0].o0Vector(), pointManual[1].o0Vector(), pointManual[3].o0Vector(), pointManual[2].o0Vector()));
            //        pointManual.Clear();
            //        ShowScreen(screenIdentification.Screen.Quad);
            //        foreach (Transform i in FullScreenImage.transform)
            //            Destroy(i.gameObject);
            //        ToMode(Mode.InfraredLocate);
            //    }
            //}
            return;
        }

        //var t0 = Time.realtimeSinceStartup;

        /* New*/
        //Debug.Log((mUVCCameraInfo != null) +" = "+ mUVCCameraInfo.IsPreviewing + " = "+ screenIdentification.Screen.Active);
        if (mUVCCameraInfo != null && mUVCCameraInfo.IsPreviewing)     // 成功定位屏幕后才做红外识别
        {
            CreateUVCTexture2DIfNeeded();
            if (!screenIdentification.Update(mUVCTexture2D))
            {
                if (!screenIdentification.Screen.Active)
                {
                    //DebugTexture(1, mUVCTexture2D.zimAutoLightSimple());
                    return;
                }

                //if (mUVCCameraInfo.Size != ScreenLocateCameraSize)   // 摄像机分辨率发生改变时执行
                //{
                //    RefreshScreenQuad(mUVCCameraInfo.Size);
                //    return;
                //}

                if (mode == Mode.InfraredLocate)
                {
                    //0,0, cameraTexture2D.width, cameraTexture2D.height,0
                    var pixels = mUVCTexture2D.GetPixels();       // 从左往右、从下往上
                    //InfraredSpots = infraredLocate.Update(pixels);
                    if (bSinglePoint)
                        infraredSpotBuffer = infraredLocate.UpdateSingle(pixels);
                    else
                        infraredSpotBuffer = infraredLocate.Update(pixels);

                    if (mPlatform == Platform.Window) //渲染ui上面的点。进入游戏可以隐藏
                    {
                        for (int i = 0; i < infraredSpotBuffer.Length; i++)
                        {
                            if (infraredSpotBuffer[i].CameraLocation != null)
                            {
                                // 检测到光点
                                var posInCanvas = infraredSpotBuffer[i].CameraLocation.Value.pixelToLocalPosition_AnchorCenter(mUVCCameraInfo.Size, rawImage.rectTransform.rect);
                                CrosshairInCamera[i].gameObject.SetActive(true);
                                CrosshairInCamera[i].anchoredPosition = posInCanvas;
                            }
                            else
                                CrosshairInCamera[i].gameObject.SetActive(false);
                        }
                    }

                    //手机端使用
                    if (mPlatform == Platform.Android && infraredSpotBuffer.Length > 0)
                    {
                        int redIndex = 0;
                        int greenIndex = 1;
                        //仅仅第一个点显示(如果最大点出界了会闪烁)
                        if (bSinglePoint)
                        {
                            redIndex = 0; //单点识别是，可以选择切换颜色
                            if (infraredSpotBuffer[redIndex].ScreenUV != null)
                            {
                                string str = "Single:";
                                Info.text = str + infraredSpotBuffer[redIndex].ScreenUV.Value.ToString("F4");
                                //InfraredManager.ConnetDevicesSingle.ins.posAction?.Invoke(new Vector3(infraredSpotBuffer[redIndex].ScreenUV.Value.x * Screen.width, infraredSpotBuffer[redIndex].ScreenUV.Value.y * Screen.height, 0));
                                onFilterPos(infraredSpotBuffer[redIndex].ScreenUV.Value);

                            }
                        }
                        else
                        {
                            //雙點模式下選擇第一個點
                            if (bIdentifyRed && !bIdentifyGreen)
                            {
                                if (infraredSpotBuffer[redIndex].ScreenUV != null)
                                {
                                    Info.text = "Red" + redIndex + ":" + infraredSpotBuffer[redIndex].ScreenUV.Value.ToString("F4");
                                    //InfraredManager.ConnetDevicesSingle.ins.posAction?.Invoke(new Vector3(infraredSpotBuffer[redIndex].ScreenUV.Value.x * Screen.width, infraredSpotBuffer[redIndex].ScreenUV.Value.y * Screen.height, 0));
                                    onFilterPos2(infraredSpotBuffer[redIndex].ScreenUV.Value, redIndex);
                                }
                                else
                                {
                                    Info.text = "未检测到红色最大点！";
                                }
                            }
                            else if (!bIdentifyRed && bIdentifyGreen)
                            {
                                if (infraredSpotBuffer[greenIndex].ScreenUV != null)
                                {
                                    Info.text = "Green:" + infraredSpotBuffer[greenIndex].ScreenUV.Value.ToString("F4");
                                    //InfraredManager.ConnetDevicesSingle.ins.posAction?.Invoke(new Vector3(infraredSpotBuffer[greenIndex].ScreenUV.Value.x * Screen.width, infraredSpotBuffer[greenIndex].ScreenUV.Value.y * Screen.height, 0));
                                    onFilterPos2(infraredSpotBuffer[greenIndex].ScreenUV.Value, greenIndex);

                                }
                                else
                                {
                                    Info.text = "未检测到绿色点！";
                                }
                            }
                            else
                            {
                                //两个不选择和两个全选都跑识别两个点
                                //自動切換 检测到光点
                                if (infraredSpotBuffer[redIndex].ScreenUV != null)
                                {
                                    Info.text = "Red:" + infraredSpotBuffer[redIndex].ScreenUV.Value.ToString("F4");
                                    //InfraredManager.ConnetDevicesSingle.ins.posAction?.Invoke(new Vector3(infraredSpotBuffer[redIndex].ScreenUV.Value.x * Screen.width, infraredSpotBuffer[redIndex].ScreenUV.Value.y * Screen.height, 0));
                                    onFilterPos2(infraredSpotBuffer[redIndex].ScreenUV.Value, redIndex);
                                }
                                else if (infraredSpotBuffer[greenIndex].ScreenUV != null)
                                {

                                    Info.text = "Green:" + infraredSpotBuffer[greenIndex].ScreenUV.Value.ToString("F4");
                                    //InfraredManager.ConnetDevicesSingle.ins.posAction?.Invoke(new Vector3(infraredSpotBuffer[greenIndex].ScreenUV.Value.x * Screen.width, infraredSpotBuffer[greenIndex].ScreenUV.Value.y * Screen.height, 0));
                                    onFilterPos2(infraredSpotBuffer[greenIndex].ScreenUV.Value, greenIndex);
                                }
                                else
                                {
                                    Info.text = "未检测到点！";
                                }

                            }


                        }

                    }

                }
                else if (mode == Mode.ScreenMap && DebugOnEditorWin)
                {
                    var pixels = mUVCTexture2D.GetPixels();
                    if (infraredCount == InfraredCount.Single)
                        infraredSpotBuffer = infraredLocate.UpdateSingle(pixels);
                    else if (infraredCount == InfraredCount.Double)
                        infraredSpotBuffer = infraredLocate.Update(pixels);

                    for (int i = 0; i < infraredSpotBuffer.Length; i++)
                    {
                        if (infraredSpotBuffer[i].ScreenUV != null)
                        {
                            // 检测到光点
                            var posInCanvas = infraredSpotBuffer[i].ScreenUV.Value.pixelToLocalPosition_AnchorCenter(new Vector2(1, 1), canvas.rect);
                            CrosshairInScreen[i].gameObject.SetActive(true);
                            CrosshairInScreen[i].anchoredPosition = posInCanvas;
                        }
                        else
                            CrosshairInScreen[i].gameObject.SetActive(false);
                    }

                    if (Input.GetKeyDown(KeyCode.Escape))
                        ToMode(Mode.InfraredLocate);
                }
            }
        }

        //var t1 = Time.realtimeSinceStartup;
        //var dt = t1 - t0;
        //m_History[m_ValidHistoryFrames % m_History.Count] = dt;
        //++m_ValidHistoryFrames;

        //m_UIUpdateTimer += Time.deltaTime;

        //if (m_UIUpdateTimer >= m_UIUpdateInterval)
        //{
        //    m_UIUpdateTimer = 0.0f;

        //    if (m_ValidHistoryFrames >= m_History.Count)
        //    {
        //        m_ValidHistoryFrames = 0;

        //        m_AverageTime = 0.0f;

        //        m_MinTime = float.PositiveInfinity;
        //        m_MaxTime = float.NegativeInfinity;

        //        {
        //            for (var i = 0; i < m_History.Count; i++)
        //            {
        //                var time = m_History[i];
        //                m_AverageTime += time;

        //                m_MinTime = Mathf.Min(m_MinTime, time);
        //                m_MaxTime = Mathf.Max(m_MaxTime, time);
        //            }
        //            m_AverageTime /= m_History.Count;
        //        }
        //        {
        //            m_History.Sort();

        //            // Odd-length history?
        //            if ((m_History.Count & 1) != 0)
        //            {
        //                m_MedianTime = m_History[m_History.Count / 2];
        //            }
        //            else
        //            {
        //                m_MedianTime = (m_History[m_History.Count / 2] + m_History[m_History.Count / 2 - 1]) / 2.0f;
        //            }
        //        }

        //    }
        //    var statistics = $"{m_History.Count} 帧样本:\naverage: {m_AverageTime * 1000.0f:F2}ms\nmedian: {m_MedianTime * 1000.0f:F2}ms\nmin: {m_MinTime * 1000.0f:F2}ms\nmax: {m_MaxTime * 1000.0f:F2}ms\n";

        //    //Method: {m_Method} {UnityEngine.SceneManagement.SceneManager.GetActiveScene().name} |
        //    if (m_UITime != null)
        //        m_UITime.text = $"Cam: {mUVCCameraInfo.CurrentWidth}x{mUVCCameraInfo.CurrentHeight}{(mUVCTexture2D? ",T2D:" : "")}{(mUVCTexture2D? mUVCTexture2D.width+ "x" : "")}{(mUVCTexture2D ? mUVCTexture2D.height:"")} \nLast Frame: {dt * 1000.0f:F2}ms \n{statistics}";

        //}
        //UpdateInputs();


    }

    Vector2 targetPos = Vector2.zero;
    Vector2 movePos = Vector2.zero;
    int moveSpeed = 20;
    public float filterDis = 3.0f;
    void onFilterPos(Vector2 _vector2Pos)
    {
        Vector2 np = new Vector2(_vector2Pos.x * Screen.width, _vector2Pos.y * Screen.height); //_vector2Pos.pixelToLocalPosition_AnchorCenter(Vector2.one, (transform as RectTransform).rect);
        if (Vector2.Distance(np, targetPos) >= filterDis)
        {
            targetPos = np;
            //InfraredManager.ConnetDevicesSingle.ins.posAction?.Invoke(new Vector3(targetPos.x, targetPos.y, 0));
            InfraredCameraHelper.InvokeOnPositionUpdate(targetPos);
        }
        //movePos = Vector3.Lerp(movePos, targetPos, Time.deltaTime * moveSpeed);
        //InfraredManager.ConnetDevicesSingle.ins.posAction?.Invoke(new Vector3(movePos.x, movePos.y, 0));

    }

    Vector2[] _targetPoints2 = new Vector2[] { Vector2.zero, Vector2.zero };
    void onFilterPos2(Vector2 _vector2Pos, int index)
    {
        Vector2 np = new Vector2(_vector2Pos.x * Screen.width, _vector2Pos.y * Screen.height);
        if (Vector2.Distance(np, _targetPoints2[index]) >= filterDis)
        {
            _targetPoints2[index] = np;
            InfraredCameraHelper.InvokeOnPositionUpdate2(_targetPoints2[index], index);
        }
    }

    #region 自动识别 
    int Capture = 30;
    int Delay = 30;
    int DefaultResolutionIndex;
    readonly int HighScreenLocateResolutionIndex = 2;       // 自动识别时，摄像机分辨率固定为1280 * 720 ( 对应索引是2 )，数值可以根据需要修改

    public void BtnScreenLocate()
    {
        if (DebugScreenImage)
        {
            screenIdentification = new o0.Project.ScreenIdentification();
            WebCamIsReady(DebugScreenImage);

            CreateUVCTexture2DIfNeeded();

        }
        Debug.Log("BtnScreenLocate Capture:" + Capture + " ,Delay: " + Delay);
        screenIdentification.LocateScreen(Capture, Delay);
    }
    public void OnLocateScreenEnter()
    {
        screenIdentification.Screen.QuadInCamera = null;
        DefaultResolutionIndex = InfraredDemoMain?.ResolutionIndex ?? 0;        // 记录一下进入前的分辨率（游戏场景的分辨率，比识别时更低）
        InfraredDemoMain?.SetResolutionNew(HighScreenLocateResolutionIndex);
        CreateUVCTexture2DIfNeeded();
    }

    public void OnLocateScreenEnd()
    {
        Debug.Log("结束捕获，当前摄像机分辨率为: " + mUVCCameraInfo.Size);
        ScreenLocateCameraSize = mUVCCameraInfo.Size;       // 记录本次屏幕识别的分辨率（目前采用高分辨率做识别，识别结束后调回低分辨率）
        InfraredDemoMain?.SetResolutionNew(DefaultResolutionIndex);
    }

    /**
      * 与UVC设备协商时
      * H.264是否优先协商
      * 仅安卓实机有效
      * true:	H.264 > MJPEG > YUV
      * false:	MJPEG > H.264 > YUV
      */
    public bool PreferH264 = false;
    private const int FRAME_TYPE_MJPEG = 0x000007;
    private const int FRAME_TYPE_H264 = 0x000014;
    public void Resize(int width, int height)
    {
        if (mUVCCameraInfo == null) return;

        bool PreferH264 = mUVCManager.PreferH264;

        int[] frameTypes = {
                    PreferH264 ? FRAME_TYPE_H264 : FRAME_TYPE_MJPEG,
                    PreferH264 ? FRAME_TYPE_MJPEG : FRAME_TYPE_H264,
                };
        foreach (var frameType in frameTypes)
        {
            Debug.Log("Resize frameType:" + frameType + " = " + width + " : " + height);
            if (UVCManager.onResize(mUVCCameraInfo.device.id, frameType, width, height) == 0)
            {
                Debug.Log("frameType:" + frameType);
                break;
            }
        }

        ReSizeTexture(width, height);
        mUVCCameraInfo.SetSize(width, height);      // 手动记录分辨率,这里可能会有问题 width和height是期望的分辨率而不是当前摄像机实际分辨率
    }
    #endregion
    public void BtnScreenMap()
    {
        ToMode(Mode.ScreenMap);
    }

    //进入手动定位屏幕
    public void BtnScreenLocateManual()
    {
        ToMode(Mode.ScreenLocateManual);
    }

    public static List<Vector2> quadUnityVectorList = new();

    // 标记屏幕的四个角
    public void ShowScreen(QuadrilateralInCamera screen)
    {
        if (screen == null)
        {
            Info.text = "识别屏幕失败";
            return;
        }
        Info.text = "已识别到屏幕";

        if (ShowScreenQuad)
        {
            ScreenQuad.gameObject.SetActive(true);
            //quadUnityVectorList.Clear();

            for (int i = 0; i < 4; i++)
            {
                if (DebugOnEditorWin)
                {
                    RectTransform t = ScreenQuad.GetChild(i) as RectTransform;
                    t.anchoredPosition = screen.Quad[i].pixelToLocalPosition_AnchorCenter(screen.CameraSize, ScreenQuad.rect);
                }
                //mUVCCameraInfo.Size
                //自动识别时候，记录四个点
                //quadUnityVectorList.Add(quad[i].UnityVector());
            }

            quadUnityVectorList = screen.GetUnityVertexList();      // 记录四个点

            SaveScreenLocateVectorList();
            SyncInfraredDemo();
            SyncInfraredScreenPositioningView();


        }

    }

    static public void SaveScreenLocateVectorList()
    {
        string saveStr = string.Join(";", quadUnityVectorList.Select(v => $"{v.x},{v.y}")); //,{v.z}
        Debug.Log("SaveScreenLocateVectorList:  " + saveStr);
        PlayerPrefs.SetString("ScreenLocateVectorList", saveStr);
    }

    static public void GetScreenLocateVectorList()
    {
        string posListStr = PlayerPrefs.GetString("ScreenLocateVectorList", "");
        if (!string.IsNullOrWhiteSpace(posListStr))
        {
            quadUnityVectorList.Clear();
            quadUnityVectorList = posListStr.Split(';')
                .Select(s =>
                {
                    string[] parts = s.Split(',');
                    return new Vector2(float.Parse(parts[0]), float.Parse(parts[1]));
                })
                .ToList();
        }
    }

    public void SyncInfraredDemo()
    {
        if (quadUnityVectorList.Count == 0) return;
        Vector2 texSize = getUVCCameraInfoSize;
        Debug.Log("[SyncInfraredDemo] quadUnityVectorList Count: " + quadUnityVectorList.Count);
        //同步到infaredDemo
        FindObjectOfType<InfraredDemo>()?.SetLocatePointsToCameraRender(
            quadUnityVectorList,
            1,
            1);

    }

    public void SyncInfraredScreenPositioningView()
    {
        if (quadUnityVectorList.Count == 0) return;
        //同步位置
        FindObjectOfType<InfraredScreenPositioningView>()?.SyncScreenPosition();
    }

    void ToMode(Mode mode)
    {
        if (this.mode == mode)
            return;

        if (mode == Mode.ScreenMap)
        {
            if (!screenIdentification.Screen.Active)
            {
                Info.text = "先定位屏幕";
                return;
            }
            Info.text = "按ESC退出";
            SetScreen(Color.black);
            Info.transform.SetAsLastSibling();
            this.mode = Mode.ScreenMap;
        }
        else if (mode == Mode.InfraredLocate)
        {
            Info.text = screenIdentification.Screen.Active ? "已定位屏幕" : "定位屏幕失败";
            //Info.text = "已识别到屏幕"; 
            SetScreen(null);
            foreach (var i in CrosshairInScreen)
                i.gameObject.SetActive(false);
            FullScreenImage.gameObject.SetActive(false);
            Info.transform.SetSiblingIndex(transform.childCount - 4);
            this.mode = Mode.InfraredLocate;
            DebugTexture(6, null);
            //DebugTexture(1, null); //null
            // rawImage1.texture = null;

#if (!NDEBUG && DEBUG && ENABLE_LOG)
            Console.WriteLine($"{TAG} Mode.InfraredLocate:已识别到屏幕:{screenIdentification.Screen.Active}");
#endif
        }
        else if (mode == Mode.ScreenLocateManual)
        {
            Info.text = "左键单击屏幕 左下角";
            FullScreenImage.gameObject.SetActive(true);
            Info.transform.SetSiblingIndex(transform.childCount - 1);

            // var newTex = WebCamera.webCamTexture.AutoLight(10);
            //DebugTexture(1, TextureToTexture2D(rawImage.texture));

            CreateUVCTexture2DIfNeeded();
            DebugTexture(6, mUVCTexture2D.zimAutoLight(brightness));
            //mUVCTexture2DTemp = TextureToTexture2D(mUVCCameraInfo.previewTexture);
            //DebugTexture(6, mUVCTexture2DTemp.zimAutoLight(brightness));
            this.mode = Mode.ScreenLocateManual;
        }
    }

    private Texture2D TextureToTexture2D(Texture texture, int width = 0, int height = 0)
    {
        if (width == 0)
            width = texture.width;
        if (height == 0)
            height = texture.height;

        Texture2D _texture2D = new Texture2D(width, height, TextureFormat.ARGB32, false, true);
        RenderTexture currentRT = RenderTexture.active;
        RenderTexture renderTexture = RenderTexture.GetTemporary(
                    width,
                    height,
                    0,
                    RenderTextureFormat.ARGB32,
                    RenderTextureReadWrite.Linear);
        Graphics.Blit(texture, renderTexture);
        RenderTexture.active = renderTexture;
        _texture2D.ReadPixels(new Rect(0, 0, width, height), 0, 0);
        _texture2D.Apply();
        RenderTexture.active = currentRT;
        RenderTexture.ReleaseTemporary(renderTexture);
        return _texture2D;
    }

    //public void CreateUVCTexture2DFocusSizeIfNeeded(int width, int height)
    //{
    //    if (mUVCTexture2D != null)
    //        Destroy(mUVCTexture2D);
    //    mUVCTexture2D = TextureToTexture2D(mUVCTexture, width, height);
    //}

    private void CreateUVCTexture2DIfNeeded()
    {
        if (mUVCTexture2D != null)
            Destroy(mUVCTexture2D);
        mUVCTexture2D = TextureToTexture2D(mUVCTexture);
    }



    #region DoubleButton 

    private DateTime m_firstTime;
    private DateTime m_secondTime;

    private void Press()
    {
        Debug.Log("进入手动定位");
        BtnScreenLocateManual();
        resetTime();
    }

    public void OnDoubleClick()
    {
        //超时重置
        if (!m_firstTime.Equals(default(DateTime)))
        {
            var intervalTime = DateTime.Now - m_firstTime;
            float milliSeconds = intervalTime.Seconds * 1000 + intervalTime.Milliseconds;
            if (milliSeconds >= 400)
                resetTime();
        }

        // 按下按钮时对两次的时间进行记录
        if (m_firstTime.Equals(default(DateTime)))
            m_firstTime = DateTime.Now;
        else
            m_secondTime = DateTime.Now;

        // 在第二次点击触发,时差小于400ms触发
        if (!m_firstTime.Equals(default(DateTime)) && !m_secondTime.Equals(default(DateTime)))
        {
            var intervalTime = m_secondTime - m_firstTime;
            float milliSeconds = intervalTime.Seconds * 1000 + intervalTime.Milliseconds;
            if (milliSeconds < 400)
                Press();
            else
                resetTime();
        }
    }

    private void resetTime()
    {
        m_firstTime = default(DateTime);
        m_secondTime = default(DateTime);
    }
    #endregion


    #region 性能检测相关
    void InvalidateTimings()
    {
        m_ValidHistoryFrames = 0;
        m_AverageTime = float.NaN;
        m_MedianTime = float.NaN;
        m_MinTime = float.NaN;
        m_MaxTime = float.NaN;
    }
    void UpdateInputs()
    {

        //重置
        if (Input.GetKeyDown(KeyCode.UpArrow))
        {
            InvalidateTimings();
        }
    }
    #endregion
}