711 lines
25 KiB
C#
711 lines
25 KiB
C#
using System;
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using System.Collections;
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using System.Collections.Generic;
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using Kill.UI.Components;
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using UnityEngine;
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using UnityEngine.UI;
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namespace Kill.UI.Pages
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{
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/// <summary>
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/// 二维码扫描器 - 调用摄像头扫描二维码
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/// </summary>
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public class ScanQRcode : MonoBehaviour
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{
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[Serializable]
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public enum ScanType
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{
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ConnectDevice, // 连接设备
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Other // 其他用途
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}
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[Header("UI组件")]
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public RawImage cameraPreview; // 摄像头预览
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[Header("扫描设置")]
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public float scanInterval = 0.15f; // 扫描间隔（秒）
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public ScanType scanType = ScanType.ConnectDevice; // 扫描类型
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[Header("小二维码优化")]
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[Tooltip("启用图像放大（推荐用于小二维码）")]
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public bool enableUpscale = true;
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[Tooltip("放大倍数")]
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public float upscaleFactor = 2f;
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[Tooltip("启用多区域扫描（从画面中心向四周扫描）")]
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bool enableMultiRegionScan = false;
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[Tooltip("扫描区域数量")]
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public int scanRegionCount = 3;
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[Header("性能优化")]
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[Tooltip("降低扫描分辨率（推荐值：640或480）")]
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public int scanResolutionWidth = 640;
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[Tooltip("扫描处理线程数")]
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public bool useAsyncScan = true;
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[Header("自动对焦")]
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[Tooltip("启用自动对焦")]
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public bool enableAutoFocus = true;
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[Tooltip("对焦间隔（秒）")]
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public float focusInterval = 2f;
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// 摄像头相关
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private WebCamTexture webCamTexture;
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private WebCamDevice currentDevice;
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private bool isScanning = false;
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private bool isProcessing = false;
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// 扫描结果回调
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public event Action<string> OnQRCodeScanned;
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void OnEnable()
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{
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StartScan();
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}
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void OnDisable()
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{
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StopScan();
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}
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/// <summary>
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/// 开始扫描
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/// </summary>
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public void StartScan()
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{
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if (isScanning) return;
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StartCoroutine(InitializeCamera());
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}
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/// <summary>
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/// 停止扫描
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/// </summary>
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public void StopScan()
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{
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isScanning = false;
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StopAllCoroutines();
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if (webCamTexture != null && webCamTexture.isPlaying)
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{
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webCamTexture.Stop();
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webCamTexture = null;
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}
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}
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/// <summary>
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/// 关闭扫码界面
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/// </summary>
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public void Close()
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{
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StopScan();
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gameObject.SetActive(false);
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}
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/// <summary>
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/// 初始化摄像头
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/// </summary>
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private IEnumerator InitializeCamera()
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{
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// Android 使用 Permission API 请求权限
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#if UNITY_ANDROID && !UNITY_EDITOR
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if (!UnityEngine.Android.Permission.HasUserAuthorizedPermission(UnityEngine.Android.Permission.Camera))
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{
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UnityEngine.Android.Permission.RequestUserPermission(UnityEngine.Android.Permission.Camera);
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// 等待权限请求结果
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yield return new WaitUntil(() => UnityEngine.Android.Permission.HasUserAuthorizedPermission(UnityEngine.Android.Permission.Camera));
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}
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if (!UnityEngine.Android.Permission.HasUserAuthorizedPermission(UnityEngine.Android.Permission.Camera))
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{
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UpdateStatus("100085");
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yield break;
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}
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#else
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// 其他平台使用传统方式
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yield return Application.RequestUserAuthorization(UserAuthorization.WebCam);
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if (!Application.HasUserAuthorization(UserAuthorization.WebCam))
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{
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UpdateStatus("100085");
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yield break;
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}
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#endif
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// 获取后置摄像头
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WebCamDevice[] devices = WebCamTexture.devices;
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if (devices.Length == 0)
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{
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UpdateStatus("100086");
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yield break;
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}
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// 优先使用后置摄像头，并选择支持自动对焦的摄像头
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string deviceName = devices[0].name;
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for (int i = 0; i < devices.Length; i++)
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{
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if (!devices[i].isFrontFacing)
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{
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deviceName = devices[i].name;
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currentDevice = devices[i];
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break;
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}
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}
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// 使用较低的扫描分辨率以提高性能
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int targetWidth = scanResolutionWidth;
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int targetHeight = Mathf.RoundToInt(targetWidth * Screen.height / Screen.width);
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// 创建摄像头纹理
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webCamTexture = new WebCamTexture(deviceName, targetWidth, targetHeight, 30);
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cameraPreview.texture = webCamTexture;
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// 开始播放
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webCamTexture.Play();
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// 等待摄像头启动
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yield return new WaitUntil(() => webCamTexture.width > 100);
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// 调整预览画面比例
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AdjustPreviewAspect();
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// 启动自动对焦
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if (enableAutoFocus)
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{
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StartCoroutine(AutoFocusCoroutine());
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}
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isScanning = true;
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// 开始扫描
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StartCoroutine(ScanCoroutine());
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}
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/// <summary>
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/// 自动对焦协程
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/// </summary>
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private IEnumerator AutoFocusCoroutine()
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{
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while (isScanning && webCamTexture != null && webCamTexture.isPlaying)
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{
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TriggerAutoFocus();
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yield return new WaitForSeconds(focusInterval);
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}
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}
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/// <summary>
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/// 触发自动对焦
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/// </summary>
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private void TriggerAutoFocus()
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{
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#if UNITY_ANDROID && !UNITY_EDITOR
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try
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{
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using (AndroidJavaClass unityPlayer = new AndroidJavaClass("com.unity3d.player.UnityPlayer"))
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{
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using (AndroidJavaObject activity = unityPlayer.GetStatic<AndroidJavaObject>("currentActivity"))
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{
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using (AndroidJavaObject camera = new AndroidJavaObject("android.hardware.Camera"))
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{
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// 尝试使用 Camera API 触发对焦
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var cameraClass = new AndroidJavaClass("android.hardware.Camera");
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var cameraInstance = cameraClass.CallStatic<AndroidJavaObject>("open");
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if (cameraInstance != null)
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{
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var parameters = cameraInstance.Call<AndroidJavaObject>("getParameters");
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if (parameters != null)
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{
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// 设置对焦模式
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var supportedModes = parameters.Call<AndroidJavaObject>("getSupportedFocusModes");
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if (supportedModes != null)
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{
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// 优先使用连续自动对焦
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if (supportedModes.Call<bool>("contains", "continuous-video"))
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{
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parameters.Call("setFocusMode", "continuous-video");
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}
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else if (supportedModes.Call<bool>("contains", "auto"))
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{
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parameters.Call("setFocusMode", "auto");
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}
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cameraInstance.Call("setParameters", parameters);
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}
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}
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cameraInstance.Call("release");
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}
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}
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}
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}
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}
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catch (Exception e)
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{
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Debug.LogWarning($"[ScanQRcode] 自动对焦设置失败: {e.Message}");
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}
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#elif UNITY_IOS && !UNITY_EDITOR
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// iOS 自动对焦通常由系统自动处理
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// 如果需要手动控制，需要使用原生插件
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Debug.Log("[ScanQRcode] iOS 自动对焦由系统管理");
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#endif
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}
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/// <summary>
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/// 调整预览画面比例
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/// </summary>
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private void AdjustPreviewAspect()
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{
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if (webCamTexture == null) return;
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float videoRatio = (float)webCamTexture.width / webCamTexture.height;
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float screenRatio = (float)Screen.width / Screen.height;
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// 根据摄像头方向调整
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int rotation = webCamTexture.videoRotationAngle;
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cameraPreview.rectTransform.localEulerAngles = new Vector3(0, 0, -rotation);
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// 调整缩放以适应屏幕
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if (rotation == 90 || rotation == 270)
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{
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videoRatio = 1f / videoRatio;
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}
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// 保持比例填充
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if (videoRatio > screenRatio)
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{
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cameraPreview.rectTransform.localScale = new Vector3(screenRatio / videoRatio, 1, 1);
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}
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else
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{
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cameraPreview.rectTransform.localScale = new Vector3(1, videoRatio / screenRatio, 1);
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}
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}
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/// <summary>
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/// 扫描协程
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/// </summary>
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private IEnumerator ScanCoroutine()
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{
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// 等待一帧确保摄像头已准备好
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yield return null;
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while (isScanning && webCamTexture != null && webCamTexture.isPlaying)
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{
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// 避免同时处理多帧
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if (isProcessing)
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{
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yield return null;
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continue;
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}
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isProcessing = true;
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// 获取当前帧
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Texture2D snapshot = GetSnapshot();
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if (snapshot != null)
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{
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// 异步解析二维码以避免卡顿
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if (useAsyncScan)
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{
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string result = null;
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bool scanComplete = false;
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// 在后台线程执行解码
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System.Threading.ThreadPool.QueueUserWorkItem(_ =>
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{
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try
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{
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result = DecodeQRCode(snapshot);
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}
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catch (Exception e)
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{
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Debug.LogError($"[ScanQRcode] 解码异常: {e.Message}");
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}
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finally
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{
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scanComplete = true;
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}
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});
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// 等待解码完成
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yield return new WaitUntil(() => scanComplete);
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// 在主线程销毁纹理
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Destroy(snapshot);
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// 处理结果
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if (!string.IsNullOrEmpty(result))
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{
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ProcessScanResult(result);
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yield break;
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}
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}
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else
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{
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// 同步解码
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string result = DecodeQRCode(snapshot);
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Destroy(snapshot);
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if (!string.IsNullOrEmpty(result))
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{
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ProcessScanResult(result);
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yield break;
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}
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}
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}
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isProcessing = false;
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yield return new WaitForSeconds(scanInterval);
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}
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}
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/// <summary>
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/// 处理扫描结果
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/// </summary>
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private void ProcessScanResult(string result)
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{
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// 根据扫描类型处理结果
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if (scanType == ScanType.ConnectDevice)
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{
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// 从结果中提取 MAC 地址
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string macAddress = ExtractMacAddress(result);
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if (!string.IsNullOrEmpty(macAddress))
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{
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// 扫描成功，仅回传 MAC 地址
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OnQRCodeScanned?.Invoke(macAddress);
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}
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else
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{
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// 二维码不符合要求，显示提示
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UpdateStatus("100084");
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}
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}
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else
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{
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if (!string.IsNullOrEmpty(result))
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{
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// 其他用途，直接回传结果
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OnQRCodeScanned?.Invoke(result);
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}
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else
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{
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// 二维码不符合要求，显示提示
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UpdateStatus("100084");
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}
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}
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}
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/// <summary>
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/// 获取摄像头当前帧
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/// </summary>
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private Texture2D GetSnapshot()
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{
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if (webCamTexture == null || !webCamTexture.isPlaying) return null;
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try
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{
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Texture2D snapshot = new Texture2D(webCamTexture.width, webCamTexture.height);
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snapshot.SetPixels(webCamTexture.GetPixels());
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snapshot.Apply();
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// 如果启用放大，对图像进行放大处理
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if (enableUpscale && upscaleFactor > 1f)
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{
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snapshot = UpscaleTexture(snapshot, upscaleFactor);
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}
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return snapshot;
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}
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catch
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{
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return null;
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}
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}
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/// <summary>
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/// 放大纹理（使用双线性插值）- 优化版本
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/// </summary>
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private Texture2D UpscaleTexture(Texture2D source, float factor)
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{
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// 限制放大倍数，避免过度消耗性能
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factor = Mathf.Clamp(factor, 1f, 3f);
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int newWidth = Mathf.RoundToInt(source.width * factor);
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int newHeight = Mathf.RoundToInt(source.height * factor);
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// 限制最大尺寸，避免内存问题
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newWidth = Mathf.Min(newWidth, 1280);
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newHeight = Mathf.Min(newHeight, 720);
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// 如果尺寸没有变化，直接返回原图
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if (newWidth <= source.width || newHeight <= source.height)
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{
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return source;
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}
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Texture2D result = new Texture2D(newWidth, newHeight, TextureFormat.RGB24, false);
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// 使用 RenderTexture 进行高质量缩放
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RenderTexture rt = RenderTexture.GetTemporary(newWidth, newHeight, 0, RenderTextureFormat.RGB565);
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RenderTexture.active = rt;
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Graphics.Blit(source, rt);
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result.ReadPixels(new Rect(0, 0, newWidth, newHeight), 0, 0);
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result.Apply();
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RenderTexture.active = null;
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RenderTexture.ReleaseTemporary(rt);
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// 销毁原始纹理
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Destroy(source);
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return result;
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}
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/// <summary>
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/// 解析二维码（支持多区域扫描）
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/// </summary>
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private string DecodeQRCode(Texture2D texture)
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{
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try
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{
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// 首先尝试全图扫描
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string result = TryDecodeRegion(texture, 0, 0, texture.width, texture.height);
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if (!string.IsNullOrEmpty(result))
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return result;
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// 如果启用了多区域扫描，尝试从中心向外扫描不同区域
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if (enableMultiRegionScan)
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{
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result = TryDecodeMultipleRegions(texture);
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if (!string.IsNullOrEmpty(result))
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return result;
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}
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return null;
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}
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catch (Exception ex)
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{
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Debug.LogError($"二维码解析失败: {ex.Message}");
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return null;
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}
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}
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/// <summary>
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/// 尝试从多个区域扫描（中心优先）
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/// </summary>
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private string TryDecodeMultipleRegions(Texture2D texture)
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{
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int width = texture.width;
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int height = texture.height;
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// 定义扫描区域（从中心向外）
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float[] regionScales = { 0.6f, 0.8f, 1.0f };
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foreach (float scale in regionScales)
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{
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int regionW = Mathf.RoundToInt(width * scale);
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int regionH = Mathf.RoundToInt(height * scale);
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int startX = (width - regionW) / 2;
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int startY = (height - regionH) / 2;
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string result = TryDecodeRegion(texture, startX, startY, regionW, regionH);
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if (!string.IsNullOrEmpty(result))
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return result;
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}
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return null;
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}
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/// <summary>
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/// 尝试解码指定区域
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/// </summary>
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private string TryDecodeRegion(Texture2D texture, int startX, int startY, int width, int height)
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{
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try
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{
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// 确保区域在有效范围内
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startX = Mathf.Max(0, startX);
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startY = Mathf.Max(0, startY);
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width = Mathf.Min(width, texture.width - startX);
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height = Mathf.Min(height, texture.height - startY);
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// 获取像素数据
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Color32[] pixels = texture.GetPixels32();
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// 转换为灰度图
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byte[] grayscale = new byte[width * height];
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for (int y = 0; y < height; y++)
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{
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for (int x = 0; x < width; x++)
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{
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int srcIndex = (startY + y) * texture.width + (startX + x);
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int dstIndex = y * width + x;
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if (srcIndex < pixels.Length)
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{
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// 使用标准亮度公式: Y = 0.299R + 0.587G + 0.114B
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grayscale[dstIndex] = (byte)(0.299f * pixels[srcIndex].r +
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0.587f * pixels[srcIndex].g +
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0.114f * pixels[srcIndex].b);
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}
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}
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}
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// 创建 LuminanceSource
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var luminanceSource = new ZXing.PlanarYUVLuminanceSource(
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grayscale,
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width,
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||
height,
|
||
0,
|
||
0,
|
||
width,
|
||
height,
|
||
false
|
||
);
|
||
|
||
// 尝试多种二值化算法
|
||
string result = TryDecodeWithBinarizer(luminanceSource);
|
||
if (!string.IsNullOrEmpty(result))
|
||
return result;
|
||
|
||
return null;
|
||
}
|
||
catch
|
||
{
|
||
return null;
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 尝试使用不同的二值化算法解码
|
||
/// </summary>
|
||
private string TryDecodeWithBinarizer(ZXing.PlanarYUVLuminanceSource luminanceSource)
|
||
{
|
||
var hints = new Dictionary<ZXing.DecodeHintType, object>
|
||
{
|
||
{ ZXing.DecodeHintType.TRY_HARDER, true },
|
||
{ ZXing.DecodeHintType.POSSIBLE_FORMATS, new List<ZXing.BarcodeFormat> { ZXing.BarcodeFormat.QR_CODE } }
|
||
};
|
||
|
||
var reader = new ZXing.QrCode.QRCodeReader();
|
||
|
||
// 尝试 HybridBinarizer
|
||
try
|
||
{
|
||
var binarizer = new ZXing.Common.HybridBinarizer(luminanceSource);
|
||
var binaryBitmap = new ZXing.BinaryBitmap(binarizer);
|
||
var result = reader.decode(binaryBitmap, hints);
|
||
if (result != null)
|
||
return result.Text;
|
||
}
|
||
catch { }
|
||
|
||
// 尝试 GlobalHistogramBinarizer
|
||
try
|
||
{
|
||
var binarizer = new ZXing.Common.GlobalHistogramBinarizer(luminanceSource);
|
||
var binaryBitmap = new ZXing.BinaryBitmap(binarizer);
|
||
var result = reader.decode(binaryBitmap, hints);
|
||
if (result != null)
|
||
return result.Text;
|
||
}
|
||
catch { }
|
||
|
||
return null;
|
||
}
|
||
|
||
/// <summary>
|
||
/// 从字符串中提取 MAC 地址
|
||
/// 支持格式：
|
||
/// 1. 带冒号格式：98:EA:A0:02:4E:06
|
||
/// 2. 不带冒号格式：98eaa002658e
|
||
/// 3. 从键值对格式提取：Name:xxx;MAC:98eaa002658e
|
||
/// </summary>
|
||
private string ExtractMacAddress(string input)
|
||
{
|
||
if (string.IsNullOrEmpty(input))
|
||
return null;
|
||
|
||
string macAddress = null;
|
||
|
||
// 尝试从键值对格式提取 MAC:xxx
|
||
// 匹配 MAC: 后面跟着 12 位十六进制字符（可能带冒号或不带）
|
||
System.Text.RegularExpressions.Regex macKeyValueRegex =
|
||
new System.Text.RegularExpressions.Regex(@"MAC:([0-9A-Fa-f]{2}:?[0-9A-Fa-f]{2}:?[0-9A-Fa-f]{2}:?[0-9A-Fa-f]{2}:?[0-9A-Fa-f]{2}:?[0-9A-Fa-f]{2})");
|
||
|
||
System.Text.RegularExpressions.Match kvMatch = macKeyValueRegex.Match(input);
|
||
if (kvMatch.Success)
|
||
{
|
||
macAddress = kvMatch.Groups[1].Value;
|
||
}
|
||
else
|
||
{
|
||
// 尝试匹配带冒号的标准 MAC 格式
|
||
System.Text.RegularExpressions.Regex macColonRegex =
|
||
new System.Text.RegularExpressions.Regex(@"[0-9A-Fa-f]{2}:[0-9A-Fa-f]{2}:[0-9A-Fa-f]{2}:[0-9A-Fa-f]{2}:[0-9A-Fa-f]{2}:[0-9A-Fa-f]{2}");
|
||
|
||
System.Text.RegularExpressions.Match colonMatch = macColonRegex.Match(input);
|
||
if (colonMatch.Success)
|
||
{
|
||
macAddress = colonMatch.Value;
|
||
}
|
||
else
|
||
{
|
||
// 尝试匹配不带冒号的 12 位十六进制字符
|
||
System.Text.RegularExpressions.Regex macNoColonRegex =
|
||
new System.Text.RegularExpressions.Regex(@"[0-9A-Fa-f]{12}");
|
||
|
||
System.Text.RegularExpressions.Match noColonMatch = macNoColonRegex.Match(input);
|
||
if (noColonMatch.Success)
|
||
{
|
||
macAddress = noColonMatch.Value;
|
||
}
|
||
}
|
||
}
|
||
|
||
if (!string.IsNullOrEmpty(macAddress))
|
||
{
|
||
// 统一转换为带冒号的大写格式
|
||
return FormatMacAddress(macAddress);
|
||
}
|
||
|
||
return null;
|
||
}
|
||
|
||
/// <summary>
|
||
/// 将 MAC 地址统一格式化为带冒号的大写格式
|
||
/// 输入: 98eaa002658e 或 98:EA:A0:02:65:8E
|
||
/// 输出: 98:EA:A0:02:65:8E
|
||
/// </summary>
|
||
private string FormatMacAddress(string mac)
|
||
{
|
||
if (string.IsNullOrEmpty(mac))
|
||
return null;
|
||
|
||
// 移除所有冒号
|
||
string cleanMac = mac.Replace(":", "").Replace("-", "").ToUpper();
|
||
|
||
// 检查长度是否为 12
|
||
if (cleanMac.Length != 12)
|
||
return null;
|
||
|
||
// 格式化为 XX:XX:XX:XX:XX:XX
|
||
return string.Format("{0}:{1}:{2}:{3}:{4}:{5}",
|
||
cleanMac.Substring(0, 2),
|
||
cleanMac.Substring(2, 2),
|
||
cleanMac.Substring(4, 2),
|
||
cleanMac.Substring(6, 2),
|
||
cleanMac.Substring(8, 2),
|
||
cleanMac.Substring(10, 2));
|
||
}
|
||
|
||
/// <summary>
|
||
/// 更新状态文字
|
||
/// </summary>
|
||
private void UpdateStatus(string code)
|
||
{
|
||
ToastUI.Show(code);
|
||
}
|
||
|
||
void OnDestroy()
|
||
{
|
||
StopScan();
|
||
gameObject.SetActive(false);
|
||
}
|
||
}
|
||
}
|