improve performance.

Assets/uDesktopDuplication/Examples/Scripts/MultipleMonitorRoundLayouter.cs

@@ -3,6 +3,8 @@ using MeshForwardDirection = uDesktopDuplication.Texture.MeshForwardDirection;
 
 public class MultipleMonitorRoundLayouter : MultipleMonitorLayouter
 {
+    [SerializeField] bool debugDraw = true;
+
     public float radius = 10f;
     public Vector3 offsetAngle = Vector3.zero;
 
@@ -80,7 +82,7 @@ public class MultipleMonitorRoundLayouter : MultipleMonitorLayouter
     protected override void Update()
     {
         base.Update();
-        DebugDraw();
+        if (debugDraw) DebugDraw();
     }
 
     void DebugDraw()

Assets/uDesktopDuplication/Scripts/Cursor.cs

@@ -15,7 +15,18 @@ public class Cursor : MonoBehaviour
 
     private Texture uddTexture_;
     private Monitor monitor { get { return uddTexture_.monitor; } }
-    private Dictionary<int, Texture2D> textures_ = new Dictionary<int, Texture2D>();
+
+    struct TextureInfo
+    {
+        public Texture2D texture;
+        public System.IntPtr ptr;
+        public TextureInfo(Texture2D texture)
+        {
+            this.texture = texture;
+            this.ptr = texture.GetNativeTexturePtr();
+        }
+    }
+    private Dictionary<int, TextureInfo> textures_ = new Dictionary<int, TextureInfo>();
 
     void Start()
     {
@@ -50,13 +61,13 @@ public class Cursor : MonoBehaviour
         if (!textures_.ContainsKey(key)) {
             var texture = new Texture2D(w, h, TextureFormat.BGRA32, false);
             texture.wrapMode = TextureWrapMode.Clamp;
-            textures_.Add(key, texture);
+            textures_.Add(key, new TextureInfo(texture));
         }
 
         var cursorTexture = textures_[key];
-        Assert.IsNotNull(cursorTexture);
-        monitor.GetCursorTexture(cursorTexture.GetNativeTexturePtr());
-        uddTexture_.material.SetTexture("_CursorTex", cursorTexture);
+        Assert.IsNotNull(cursorTexture.texture);
+        monitor.GetCursorTexture(cursorTexture.ptr);
+        uddTexture_.material.SetTexture("_CursorTex", cursorTexture.texture);
     }
 
     void UpdateMaterial()

Assets/uDesktopDuplication/Scripts/Manager.cs

@@ -15,15 +15,17 @@ public class Manager : MonoBehaviour
 
     public static Manager CreateInstance()
     {
-        if (instance_) {
-            return instance_;
-        }
+        if (instance_ != null) return instance_;
 
         var manager = FindObjectOfType<Manager>();
-        if (manager) return manager;
+        if (manager) {
+            instance_ = manager;
+            return manager;
+        }
 
         var go = new GameObject("uDesktopDuplicationManager");
-        return go.AddComponent<Manager>();
+        instance_ = go.AddComponent<Manager>();
+        return instance_;
     }
 
     private List<Monitor> monitors_ = new List<Monitor>();
@@ -74,10 +76,16 @@ public class Manager : MonoBehaviour
     void Awake()
     {
         // for simple singleton
-        if (instance_ != null) {
+
+        if (instance_ == this) {
+            return;
+        }
+
+        if (instance_ != null && instance_ != this) {
             Destroy(gameObject);
             return;
         }
+
         instance_ = this;
 
         Lib.SetDebugMode(debugMode);
@@ -134,11 +142,12 @@ public class Manager : MonoBehaviour
 
         for (int i = 0; i < monitors.Count; ++i) {
             var monitor = monitors[i];
+            var state = monitor.state;
             if (
-                monitor.state == MonitorState.NotSet ||
-                monitor.state == MonitorState.AccessLost || 
-                monitor.state == MonitorState.AccessDenied ||
-                monitor.state == MonitorState.SessionDisconnected
+                state == MonitorState.NotSet ||
+                state == MonitorState.AccessLost || 
+                state == MonitorState.AccessDenied ||
+                state == MonitorState.SessionDisconnected
             ) {
                 reinitializeNeeded = true;
                 break;

Assets/uDesktopDuplication/Scripts/Monitor.cs

@@ -240,6 +240,7 @@ public class Monitor
     }
 
     private Texture2D texture_;
+    private System.IntPtr texturePtr_;
     public Texture2D texture 
     {
         get 
@@ -253,7 +254,7 @@ public class Monitor
     public void Render()
     {
         if (texture_ && available) {
-            Lib.SetTexturePtr(id, texture_.GetNativeTexturePtr());
+            Lib.SetTexturePtr(id, texturePtr_);
             GL.IssuePluginEvent(Lib.GetRenderEventFunc(), id);
         }
     }
@@ -290,6 +291,7 @@ public class Monitor
         var w = isHorizontal ? width : height;
         var h = isHorizontal ? height : width;
         texture_ = new Texture2D(w, h, TextureFormat.BGRA32, false);
+        texturePtr_ = texture_.GetNativeTexturePtr();
     }
 
     public void DestroyTexture()
@@ -297,6 +299,7 @@ public class Monitor
         if (texture_) {
             Object.Destroy(texture_);
             texture_ = null;
+            texturePtr_ = System.IntPtr.Zero;
         }
     }