add logging and use smart pointers for buffers.

Assets/uDesktopDuplication/Scripts/Cursor.cs

@@ -1,4 +1,5 @@
 using UnityEngine;
+using UnityEngine.Assertions;
 using System.Collections.Generic;
 
 namespace uDesktopDuplication
@@ -53,6 +54,7 @@ public class Cursor : MonoBehaviour
         }
 
         var cursorTexture = textures_[key];
+        Assert.IsNotNull(cursorTexture);
         monitor.GetCursorTexture(cursorTexture.GetNativeTexturePtr());
         uddTexture_.material.SetTexture("_CursorTex", cursorTexture);
     }

Assets/uDesktopDuplication/Scripts/Lib.cs

@@ -42,6 +42,7 @@ public enum MonitorState
 public static class Lib
 {
     public delegate void MessageHandler(Message message);
+    public delegate void DebugLogDelegate(string str);
 
     [DllImport("uDesktopDuplication")]
     public static extern void InitializeUDD();
@@ -54,6 +55,14 @@ public static class Lib
     [DllImport("uDesktopDuplication")]
     public static extern Message PopMessage();
     [DllImport("uDesktopDuplication")]
+    public static extern void EnableDebug();
+    [DllImport("uDesktopDuplication")]
+    public static extern void DisableDebug();
+    [DllImport("uDesktopDuplication")]
+    public static extern void SetLogFunc(DebugLogDelegate func);
+    [DllImport("uDesktopDuplication")]
+    public static extern void SetErrorFunc(DebugLogDelegate func);
+    [DllImport("uDesktopDuplication")]
     public static extern int GetMonitorCount();
     [DllImport("uDesktopDuplication")]
     public static extern int GetCursorMonitorId();

Assets/uDesktopDuplication/Scripts/Manager.cs

@@ -61,6 +61,9 @@ public class Manager : MonoBehaviour
     public delegate void ReinitializeHandler();
     public static event ReinitializeHandler onReinitialized;
 
+    private Lib.DebugLogDelegate logFunc = msg => Debug.Log(msg);
+    private Lib.DebugLogDelegate errorFunc = msg => Debug.LogError(msg);
+
     void Awake()
     {
         Lib.InitializeUDD();
@@ -81,10 +84,16 @@ public class Manager : MonoBehaviour
     void OnEnable()
     {
         renderCoroutine_ = StartCoroutine(OnRender());
+
+        Lib.SetLogFunc(logFunc);
+        Lib.SetErrorFunc(errorFunc);
     }
 
     void OnDisable()
     {
+        Lib.SetLogFunc(null);
+        Lib.SetErrorFunc(null);
+
         if (renderCoroutine_ != null) {
             StopCoroutine(renderCoroutine_);
             renderCoroutine_ = null;
@@ -96,12 +105,6 @@ public class Manager : MonoBehaviour
         Lib.Update();
         ReinitializeIfNeeded();
         UpdateMessage();
-
-        /*
-        foreach (var monitor in monitors_) {
-            Debug.LogFormat("[{0}] {1}", monitor.id, monitor.state);
-        }
-        */
     }
 
     [ContextMenu("Reinitialize")]
@@ -168,6 +171,7 @@ public class Manager : MonoBehaviour
 
     void CreateMonitors()
     {
+        monitors.Clear();
         for (int i = 0; i < monitorCount; ++i) {
             monitors.Add(new Monitor(i));
         }