针对界面显示的优化

SHH.CameraSdk/Core/Services/ImageScaleCluster.cs

@@ -7,29 +7,67 @@ namespace SHH.CameraSdk
     /// </summary>
     public class ImageScaleCluster : BaseFrameProcessor<ScaleWorker>
     {
-        public ImageScaleCluster(int count) : base(count, "ScaleCluster") { }
+        public ImageScaleCluster(int count, ProcessingConfigManager configManager)
+            : base(count, "ScaleCluster", configManager)
+        {
+        }
 
-        protected override ScaleWorker CreateWorker(int id) => new ScaleWorker(this);
+        protected override ScaleWorker CreateWorker(int id) => new ScaleWorker(this, _configManager);
     }
 
     public class ScaleWorker : BaseWorker
     {
         private readonly ImageScaleCluster _parent;
-        public ScaleWorker(ImageScaleCluster parent) => _parent = parent;
+        private readonly ProcessingConfigManager _configManager;
 
-        protected override void PerformAction(SmartFrame frame, FrameDecision decision)
+        public ScaleWorker(ImageScaleCluster parent, ProcessingConfigManager configManager)
         {
-            int targetW = 704;
-            int targetH = 576;
+            _parent = parent;
+            _configManager = configManager;
+        }
 
-            // 算法逻辑：若尺寸符合要求则执行 Resize
-            if (frame.InternalMat.Width > targetW)
+        protected override void PerformAction(long deviceId, SmartFrame frame, FrameDecision decision)
+        {
+            // 1. 获取实时配置 (极快，内存读取)
+            var options = _configManager.GetOptions(deviceId);
+
+            // 2. 原始尺寸
+            int srcW = frame.InternalMat.Width;
+            int srcH = frame.InternalMat.Height;
+
+            // 3. 目标尺寸
+            int targetW = options.TargetWidth;
+            int targetH = options.TargetHeight;
+
+            // 4. 判断是否需要缩放
+            bool needResize = false;
+
+            // 场景 A: 原始图比目标大，且允许缩小
+            if (options.EnableShrink && (srcW > targetW || srcH > targetH))
+            {
+                needResize = true;
+            }
+            // 场景 B: 原始图比目标小，且允许放大 (通常为 False)
+            else if (options.EnableExpand && (srcW < targetW || srcH < targetH))
+            {
+                needResize = true;
+            }
+
+            // 5. 执行动作
+            if (needResize)
             {
                 Mat targetMat = new Mat();
+                // 线性插值
                 Cv2.Resize(frame.InternalMat, targetMat, new Size(targetW, targetH), 0, 0, InterpolationFlags.Linear);
 
-                // 挂载到衍生属性
-                frame.AttachTarget(targetMat, FrameScaleType.Shrink);
+                // 挂载
+                var scaleType = (srcW > targetW) ? FrameScaleType.Shrink : FrameScaleType.Expand;
+                frame.AttachTarget(targetMat, scaleType);
+            }
+            else
+            {
+                // [透传] 不需要缩放
+                // 此时 frame.TargetMat 为 null，代表“无变化”
             }
         }