fix bug that caused darker screen #22.

.gitignore

@@ -5,6 +5,8 @@
 /[Bb]uild/
 /[Ww]iki/
 /[Mm]isc/
+/UnityPackageManager
+/Packages
 
 # Autogenerated VS/MD solution and project files
 *.csproj
@@ -27,3 +29,5 @@ sysinfo.txt
 .DS_Store
 /Assets/AssetStoreTools*
 /Assets/Extensions*
+/uDesktopDuplication.log
+.vs

Assets/uDesktopDuplication/Editor/TextureEditor.cs

@@ -0,0 +1,119 @@
+using UnityEngine;
+using UnityEditor;
+using System.Linq;
+
+namespace uDesktopDuplication
+{
+
+[CustomEditor(typeof(Texture))]
+public class TextureEditor : Editor
+{
+    Texture texture
+    {
+        get { return target as Texture; }
+    }
+
+    Monitor monitor
+    {
+        get { return texture.monitor; }
+    }
+
+    bool isAvailable
+    {
+        get { return monitor == null || !Application.isPlaying; }
+    }
+
+    bool basicsFolded_ = true;
+    bool invertFolded_ = true;
+    bool clipFolded_ = true;
+    bool matFolded_ = true;
+
+    SerializedProperty invertX_;
+    SerializedProperty invertY_;
+    SerializedProperty useClip_;
+    SerializedProperty clipPos_;
+    SerializedProperty clipScale_;
+
+    void OnEnable()
+    {
+        invertX_ = serializedObject.FindProperty("invertX_");
+        invertY_ = serializedObject.FindProperty("invertY_");
+        useClip_ = serializedObject.FindProperty("useClip_");
+        clipPos_ = serializedObject.FindProperty("clipPos");
+        clipScale_ = serializedObject.FindProperty("clipScale");
+    }
+
+    public override void OnInspectorGUI()
+    {
+        serializedObject.Update();
+
+        EditorGUILayout.Space();
+        DrawMonitor();
+        DrawInvert();
+        DrawClip();
+        DrawMaterial();
+
+        serializedObject.ApplyModifiedProperties();
+    }
+
+    void Fold(string name, ref bool folded, System.Action func)
+    {
+        folded = Utils.Foldout(name, folded);
+        if (folded) {
+            ++EditorGUI.indentLevel;
+            func();
+            --EditorGUI.indentLevel;
+        }
+    }
+
+    void DrawMonitor()
+    {
+        Fold("Monitor", ref basicsFolded_, () => {
+            if (isAvailable) {
+                EditorGUILayout.HelpBox("Monitor information is available only in runtime.", MessageType.Info);
+                return;
+            }
+            var id = EditorGUILayout.Popup("Monitor", monitor.id, Manager.monitors.Select(x => x.name).ToArray());
+            if (id != monitor.id) { texture.monitorId = id; }
+            EditorGUILayout.IntField("ID", monitor.id);
+            EditorGUILayout.Toggle("Is Primary", monitor.isPrimary);
+            EditorGUILayout.EnumPopup("Rotation", monitor.rotation);
+            EditorGUILayout.Vector2Field("Resolution", new Vector2(monitor.width, monitor.height));
+            EditorGUILayout.Vector2Field("DPI", new Vector2(monitor.dpiX, monitor.dpiY));
+        });
+    }
+
+    void DrawInvert()
+    {
+        Fold("Invert", ref invertFolded_, () => {
+            texture.invertX = EditorGUILayout.Toggle("Invert X", invertX_.boolValue);
+            texture.invertY = EditorGUILayout.Toggle("Invert Y", invertY_.boolValue);
+        });
+    }
+
+    void DrawClip()
+    {
+        Fold("Clip", ref clipFolded_, () => {
+            texture.useClip = EditorGUILayout.Toggle("Use Clip", useClip_.boolValue);
+            EditorGUILayout.PropertyField(clipPos_);
+            EditorGUILayout.PropertyField(clipScale_);
+        });
+    }
+
+    void DrawMaterial()
+    {
+        Fold("Material", ref matFolded_, () => {
+            if (!Application.isPlaying) {
+                EditorGUILayout.HelpBox("These parameters are applied to the shared material when not playing.", MessageType.Info);
+            }
+            texture.meshForwardDirection = (Texture.MeshForwardDirection)EditorGUILayout.EnumPopup("Mesh Forward Direction", texture.meshForwardDirection);
+            texture.bend = EditorGUILayout.Toggle("Use Bend", texture.bend);
+            texture.width = EditorGUILayout.FloatField("Bend Width", texture.width);
+            texture.radius = EditorGUILayout.Slider("Bend Radius", texture.radius, texture.worldWidth / (2 * Mathf.PI), 100f);
+            texture.thickness = EditorGUILayout.Slider("Thickness", texture.thickness, 0f, 30f);
+            texture.culling = (Texture.Culling)EditorGUILayout.EnumPopup("Culling", texture.culling);
+        });
+    }
+}
+
+}

Assets/uDesktopDuplication/Editor/TextureEditor.cs.meta

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Assets/uDesktopDuplication/Editor/Utils.cs

@@ -0,0 +1,46 @@
+using UnityEngine;
+using UnityEditor;
+
+namespace uDesktopDuplication
+{
+
+public static class Utils
+{
+    public static bool Foldout(string title, bool display)
+    {
+        var style = new GUIStyle("ShurikenModuleTitle");
+        style.font = new GUIStyle(EditorStyles.label).font;
+        style.border = new RectOffset(15, 7, 4, 4);
+        style.fixedHeight = 22;
+        style.contentOffset = new Vector2(20f, -2f);
+
+        var rect = GUILayoutUtility.GetRect(16f, 22f, style);
+        GUI.Box(rect, title, style);
+
+        var e = Event.current;
+
+        var toggleRect = new Rect(rect.x + 4f, rect.y + 2f, 13f, 13f);
+        if (e.type == EventType.Repaint) {
+            EditorStyles.foldout.Draw(toggleRect, false, false, display, false);
+        }
+        
+        if (e.type == EventType.MouseDown && rect.Contains(e.mousePosition)) {
+            display = !display;
+            e.Use();
+        }
+
+        return display;
+    }
+
+    public static void ReadOnlyTextField(string label, string text)
+    {
+        EditorGUILayout.BeginHorizontal();
+        {
+            EditorGUILayout.LabelField(label, GUILayout.Width(EditorGUIUtility.labelWidth - 4));
+            EditorGUILayout.SelectableLabel(text, EditorStyles.textField, GUILayout.Height(EditorGUIUtility.singleLineHeight));
+        }
+        EditorGUILayout.EndHorizontal();
+    }
+}
+
+}

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Assets/uDesktopDuplication/Examples/Scenes/Zoom.unity.meta

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Assets/uDesktopDuplication/Examples/Scripts/DisplacementMapping.cs

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+using UnityEngine;
+using UnityEngine.Assertions;
+
+[RequireComponent(typeof(uDesktopDuplication.Texture))]
+public class DisplacementMapping : MonoBehaviour
+{
+    public enum TargetMonitor
+    { 
+        Self,
+        Next,
+        Prev,
+    }
+    public TargetMonitor target = TargetMonitor.Self;
+
+    uDesktopDuplication.Texture uddTexture_;
+
+    int dispTexId_;
+    int dispFactorId_;
+    int tessMinDistId_;
+    int tessMaxDistId_;
+    int tessFactorId_;
+
+    [Range(0.0f, 10f)] public float displacementFactor = 0.1f;
+    [Range(0.1f, 10f)] public float tessellationMinDist = 0.5f;
+    [Range(1.0f, 50f)] public float tessellationMaxDist = 25f;
+    [Range(1.0f, 50f)] public float tessellationFactor = 25f;
+
+    void Start()
+    {
+        uddTexture_ = GetComponent<uDesktopDuplication.Texture>();
+        Assert.IsNotNull(uddTexture_);
+
+        dispTexId_ = Shader.PropertyToID("_DispTex");
+        dispFactorId_ = Shader.PropertyToID("_DispFactor");
+        tessMinDistId_ = Shader.PropertyToID("_TessMinDist");
+        tessMaxDistId_ = Shader.PropertyToID("_TessMaxDist");
+        tessFactorId_ = Shader.PropertyToID("_TessFactor");
+    }
+
+    void Update()
+    {
+        var id = uddTexture_.monitor.id;
+        switch (target) {
+            case TargetMonitor.Self: break;
+            case TargetMonitor.Next: ++id; break;
+            case TargetMonitor.Prev: --id; break;
+        }
+        id = Mathf.Clamp(id, 0, uDesktopDuplication.Manager.monitorCount - 1);
+        var monitor = uDesktopDuplication.Manager.GetMonitor(id);
+        monitor.shouldBeUpdated = true;
+
+        uddTexture_.material.SetTexture(dispTexId_, monitor.texture);
+        uddTexture_.material.SetFloat(dispFactorId_, displacementFactor);
+        uddTexture_.material.SetFloat(tessMinDistId_, tessellationMinDist);
+        uddTexture_.material.SetFloat(tessMaxDistId_, tessellationMaxDist);
+        uddTexture_.material.SetFloat(tessFactorId_, tessellationFactor);
+    }
+}

Assets/uDesktopDuplication/Examples/Scripts/DisplacementMapping.cs.meta

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Assets/uDesktopDuplication/Examples/Scripts/GazePointAnalyzer.cs

@@ -0,0 +1,168 @@
+using UnityEngine;
+using MeshForwardDirection = uDesktopDuplication.Texture.MeshForwardDirection;
+
+[RequireComponent(typeof(uDesktopDuplication.Texture))]
+public class GazePointAnalyzer : MonoBehaviour
+{
+    uDesktopDuplication.Texture uddTexture_;
+
+    [Tooltip("This needs a small calculation cost.")]
+    public bool calcAveragePos = true;
+
+    private Vector2 averageCoord_ = Vector2.zero;
+    private Vector2 averageCoordVelocity_ = Vector2.zero;
+    public Vector3 averagePos
+    {
+        get { return GetWorldPositionFromCoord((int)averageCoord_.x, (int)averageCoord_.y); }
+    }
+
+    public Vector3 cursorPos
+    {
+        get { return GetWorldPositionFromCoord(uddTexture_.monitor.cursorX, uddTexture_.monitor.cursorY); }
+    }
+    private Vector2 preCursorCoord_ = Vector2.zero;
+
+    [Header("Filters")]
+    [Range(0f, 1f)] public float moveRectFilter = 0.05f;
+    [Range(0f, 1f)] public float mouseFilter = 0.05f;
+    [Range(0f, 1f)] public float dirtyRectFilter = 0.01f;
+    [Range(0f, 1f)] public float noEventFilter = 0.01f;
+    [Range(0f, 1f)] public float velocityFilter = 0.1f;
+
+    [Header("Debug")]
+    public bool drawAveragePos;
+    public bool drawCursorPos;
+    public bool drawMoveRects;
+    public bool drawDirtyRects;
+
+    void Start()
+    {
+        uddTexture_ = GetComponent<uDesktopDuplication.Texture>();
+        averageCoord_ = new Vector2(uddTexture_.monitor.width / 2, uddTexture_.monitor.height / 2);
+    }
+
+    public Vector3 GetWorldPositionFromCoord(int u, int v)
+    {
+        return uddTexture_.GetWorldPositionFromCoord(u, v);
+    }
+
+    void CalcAveragePos()
+    {
+        if (!calcAveragePos) return;
+
+        var coord = Vector2.zero;
+        var monitor = uddTexture_.monitor;
+        var cursorCoord = new Vector2(monitor.cursorX, monitor.cursorY);
+        var filter = 0f;
+
+        // move rect
+        if (monitor.moveRectCount > 0) {
+            foreach (var rects in monitor.moveRects) {
+                var rect = rects.destination;
+                var center = new Vector2(
+                    (rect.right  + rect.left) / 2, 
+                    (rect.bottom + rect.top)  / 2);
+                coord += center;
+            }
+            coord /= monitor.moveRectCount;
+            filter = moveRectFilter;
+        } 
+        // mouse
+        else if (
+            monitor.isCursorVisible && 
+            cursorCoord != preCursorCoord_ &&
+            (cursorCoord - preCursorCoord_).magnitude > 5 &&
+            monitor.cursorX >= 0 && 
+            monitor.cursorY >= 0) 
+        {
+            coord = cursorCoord;
+            filter = mouseFilter;
+        } 
+        // dirty rect
+        else if (monitor.dirtyRectCount > 0) {
+            var totalWeights = 0f;
+            foreach (var rect in monitor.dirtyRects) {
+                var center = new Vector2(
+                    (rect.right  + rect.left) / 2, 
+                    (rect.bottom + rect.top)  / 2);
+                var weight = 1f / Mathf.Sqrt((rect.right - rect.left) * (rect.bottom - rect.top));
+                coord += center * weight;
+                totalWeights += weight;
+            }
+            coord /= totalWeights;
+            filter = dirtyRectFilter;
+        } 
+        // no event
+        else {
+            coord = new Vector2(monitor.width / 2, monitor.height / 2);
+            filter = noEventFilter;
+        }
+
+        var cf = (filter / ((1f / 60) / Time.deltaTime));
+        var vf = (velocityFilter / ((1f / 60) / Time.deltaTime));
+        var targetCoord = averageCoord_ + (coord - averageCoord_) * cf;
+        var targetVelocity = targetCoord - averageCoord_;
+
+        if (float.IsNaN(targetCoord.x) || float.IsNaN(targetCoord.y)) return;
+        if (float.IsNaN(targetVelocity.x) || float.IsNaN(targetVelocity.y)) return;
+
+        averageCoordVelocity_ += (targetVelocity - averageCoordVelocity_) * vf;
+        averageCoord_ += averageCoordVelocity_;
+        averageCoord_.x = Mathf.Clamp(averageCoord_.x, 0, monitor.width);
+        averageCoord_.y = Mathf.Clamp(averageCoord_.y, 0, monitor.height);
+
+        preCursorCoord_ = cursorCoord;
+    }
+
+    void Update()
+    {
+        CalcAveragePos();
+        DebugDraw();
+    }
+
+    void DebugDraw()
+    {
+        if (drawAveragePos) DrawAveragePos();
+        if (drawCursorPos)  DrawCursorPos();
+        if (drawDirtyRects) DrawDirtyRects();
+        if (drawMoveRects)  DrawMoveRects();
+    }
+
+    void DrawRect(uDesktopDuplication.RECT rect, Color color)
+    {
+        var p0 = GetWorldPositionFromCoord(rect.left,  rect.top);
+        var p1 = GetWorldPositionFromCoord(rect.right, rect.top);
+        var p2 = GetWorldPositionFromCoord(rect.right, rect.bottom);
+        var p3 = GetWorldPositionFromCoord(rect.left,  rect.bottom);
+
+        Debug.DrawLine(p0, p1, color);
+        Debug.DrawLine(p1, p2, color);
+        Debug.DrawLine(p2, p3, color);
+        Debug.DrawLine(p3, p0, color);
+    }
+
+    void DrawAveragePos()
+    {
+        Debug.DrawLine(transform.position, averagePos, Color.yellow);
+    }
+
+    void DrawCursorPos()
+    {
+        Debug.DrawLine(transform.position, cursorPos, Color.grey);
+    }
+
+    void DrawMoveRects()
+    {
+        foreach (var rect in uddTexture_.monitor.moveRects) {
+            DrawRect(rect.source, Color.blue);
+            DrawRect(rect.destination, Color.green);
+        }
+    }
+
+    void DrawDirtyRects()
+    {
+        foreach (var rect in uddTexture_.monitor.dirtyRects) {
+            DrawRect(rect, Color.red);
+        }
+    }
+}

Assets/uDesktopDuplication/Examples/Scripts/GazePointAnalyzer.cs.meta

@@ -0,0 +1,12 @@
+fileFormatVersion: 2
+guid: 52d402bdca823cc42925c9d65993ee59
+timeCreated: 1479546123
+licenseType: Pro
+MonoImporter:
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/uDesktopDuplication/Examples/Scripts/GetPixelsExample.cs

@@ -0,0 +1,36 @@
+using UnityEngine;
+
+public class GetPixelsExample : MonoBehaviour
+{
+    [SerializeField] uDesktopDuplication.Texture uddTexture;
+
+    [SerializeField] int x = 100;
+    [SerializeField] int y = 100;
+    const int width = 64;
+    const int height = 32;
+    
+    public Texture2D texture;
+    Color32[] colors = new Color32[width * height];
+
+    void Start()
+    {
+        texture = new Texture2D(width, height, TextureFormat.ARGB32, false);
+        GetComponent<Renderer>().material.mainTexture = texture;
+    }
+
+    void Update()
+    {
+        // must be called (performance will be slightly down).
+        uDesktopDuplication.Manager.primary.useGetPixels = true;
+
+        var monitor = uddTexture.monitor;
+        if (!monitor.hasBeenUpdated) return;
+
+        if (monitor.GetPixels(colors, x, y, width, height)) {
+            texture.SetPixels32(colors);
+            texture.Apply();
+        }
+
+        Debug.Log(monitor.GetPixel(monitor.cursorX, monitor.cursorY));
+    }
+}

Assets/uDesktopDuplication/Examples/Scripts/GetPixelsExample.cs.meta

@@ -0,0 +1,12 @@
+fileFormatVersion: 2
+guid: fd3f838ff57152e44a1810274a9df49b
+timeCreated: 1480420430
+licenseType: Pro
+MonoImporter:
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/uDesktopDuplication/Examples/Scripts/Loupe.cs

@@ -0,0 +1,50 @@
+using UnityEngine;
+
+[RequireComponent(typeof(uDesktopDuplication.Texture))]
+public class Loupe : MonoBehaviour
+{
+    private uDesktopDuplication.Texture uddTexture_;
+    public float zoom = 3f;
+    public float aspect = 1f;
+
+    void Start()
+    {
+        uddTexture_ = GetComponent<uDesktopDuplication.Texture>();
+        uddTexture_.useClip = true;
+    }
+
+    void LateUpdate()
+    {
+        CheckVariables();
+
+        if (uDesktopDuplication.Manager.cursorMonitorId < 0) return;
+        uddTexture_.monitorId = uDesktopDuplication.Manager.cursorMonitorId;
+
+        // To get other monitor textures, set dirty flag.
+        foreach (var target in uDesktopDuplication.Manager.monitors) {
+            target.CreateTextureIfNeeded();
+            target.shouldBeUpdated = true;
+        }
+
+        var monitor = uddTexture_.monitor;
+        var x = monitor.isCursorVisible ? 
+            (float)monitor.cursorX / monitor.width :
+            (float)monitor.systemCursorX / monitor.width;
+        var y = monitor.isCursorVisible ? 
+            (float)monitor.cursorY / monitor.height :
+            (float)monitor.systemCursorY / monitor.height;
+        var w = 1f / zoom;
+        var h = w / aspect * monitor.aspect;
+        x = Mathf.Clamp(x - w / 2, 0f, 1f - w);
+        y = Mathf.Clamp(y - h / 2, 0f, 1f - h);
+        uddTexture_.clipPos = new Vector2(x, y);
+        uddTexture_.clipScale = new Vector2(w, h);
+    }
+
+    void CheckVariables()
+    {
+        if (zoom < 1f) zoom = 1f;
+        if (aspect < 0.01f) aspect = 0.01f;
+    }
+}
+

Assets/uDesktopDuplication/Examples/Scripts/Loupe.cs.meta

@@ -0,0 +1,12 @@
+fileFormatVersion: 2
+guid: efd9499cdb931b945947a2cd47909676
+timeCreated: 1478438457
+licenseType: Pro
+MonoImporter:
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/uDesktopDuplication/Examples/Scripts/MultipleMonitorAnalyzer.cs

@@ -0,0 +1,69 @@
+using UnityEngine;
+
+[RequireComponent(typeof(MultipleMonitorCreator))]
+public class MultipleMonitorAnalyzer : MonoBehaviour
+{
+    MultipleMonitorCreator creator_;
+    Vector3 gazePoint_ = Vector3.zero;
+    public Vector3 gazePoint 
+    { 
+        get { return gazePoint_; } 
+        private set 
+        {
+            gazePoint_ += (value - gazePoint) * (gazePointFilter / (1f / 60 / Time.deltaTime));
+        }
+    }
+
+    [Header("Filters")]
+    [Range(0f, 1f)] public float gazePointFilter = 0.1f;
+    [Range(0f, 1f)] public float moveRectFilter = 0.05f;
+    [Range(0f, 1f)] public float mouseFilter = 0.05f;
+    [Range(0f, 1f)] public float dirtyRectFilter = 0.01f;
+    [Range(0f, 1f)] public float noEventFilter = 0.01f;
+    [Range(0f, 1f)] public float velocityFilter = 0.1f;
+
+    [Header("Debug")]
+    [SerializeField] bool drawGazePoint;
+    [SerializeField] bool drawAveragePos;
+    [SerializeField] bool drawMoveRects;
+    [SerializeField] bool drawDirtyRects;
+
+    void Start()
+    {
+        creator_ = GetComponent<MultipleMonitorCreator>();
+    }
+
+    void Update()
+    {
+        var cursorMonitorId = uDesktopDuplication.Manager.cursorMonitorId;
+        for (int i = 0; i < creator_.monitors.Count; ++i) {
+            var info = creator_.monitors[i];
+            var analyzer = 
+                info.gameObject.GetComponent<GazePointAnalyzer>() ??
+                info.gameObject.AddComponent<GazePointAnalyzer>();
+            UpdateAnalyzer(analyzer);
+            if (info.uddTexture.monitorId == cursorMonitorId) {
+                gazePoint = analyzer.averagePos;
+            }
+        }
+
+        if (drawGazePoint) DrawGazePoint();
+    }
+
+    void DrawGazePoint()
+    {
+        Debug.DrawLine(transform.position, gazePoint, Color.magenta);
+    }
+
+    void UpdateAnalyzer(GazePointAnalyzer analyzer)
+    {
+        analyzer.moveRectFilter = moveRectFilter;
+        analyzer.mouseFilter = mouseFilter;
+        analyzer.dirtyRectFilter = dirtyRectFilter;
+        analyzer.noEventFilter = noEventFilter;
+        analyzer.velocityFilter = velocityFilter;
+        analyzer.drawAveragePos = drawAveragePos;
+        analyzer.drawMoveRects = drawMoveRects;
+        analyzer.drawDirtyRects = drawDirtyRects;
+    }
+}

Assets/uDesktopDuplication/Examples/Scripts/MultipleMonitorAnalyzer.cs.meta

@@ -0,0 +1,12 @@
+fileFormatVersion: 2
+guid: dbdfccef47068644b81b671bb4e6e166
+timeCreated: 1479620455
+licenseType: Pro
+MonoImporter:
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/uDesktopDuplication/Examples/Scripts/MultipleMonitorCreator.cs

@@ -1,20 +1,80 @@
 using UnityEngine;
+using UnityEngine.Assertions;
 using System.Collections.Generic;
+using MeshForwardDirection = uDesktopDuplication.Texture.MeshForwardDirection;
+using DuplicatorState = uDesktopDuplication.DuplicatorState;
 
 public class MultipleMonitorCreator : MonoBehaviour
 {
-    [SerializeField] GameObject monitorPrefab;
-    [SerializeField] float scale = 1f;
-    [SerializeField] float margin = 1f;
+    [Tooltip("Create monitors using this prefab.")]
+    public GameObject monitorPrefab;
 
-    private List<GameObject> monitors_ = new List<GameObject>();
-    private float totalWidth_ = 0f;
+    public enum ScaleMode
+    {
+        Real,
+        Fixed,
+        Pixel,
+    }
+
+    [Tooltip("Real: DPI-based real scale \nFixed: Same width \nPixel: bigger if screen resolution is high.")]
+    public ScaleMode scaleMode = ScaleMode.Fixed;
+
+    [Tooltip("Use this scale as width if scaleMode is Fixed.")]
+    public float scale = 0.5f;
+
+    [Tooltip("Please specify the surface direction of the mesh (e.g. Plane => Y.)")]
+    public MeshForwardDirection meshForwardDirection = MeshForwardDirection.Z;
+
+    [Tooltip("Remove unsupported monitors automatically after removeWaitDuration.")]
+    public bool removeIfUnsupported = true;
+
+    [Tooltip("Remove unsupported monitors automatically after removeWaitDuration.")]
+    public float removeWaitDuration = 5f;
+
+    [Tooltip("Remove all childrens (for debug).")]
+    public bool removeChildrenWhenClear = true;
+
+    bool hasMonitorUnsupportStateChecked_ = false;
+    float removeWaitTimer_ = 0f;
+
+    public class MonitorInfo
+    {
+        public GameObject gameObject { get; set; }
+        public Quaternion originalRotation { get; set; }
+        public Vector3 originalLocalScale { get; set; }
+        public uDesktopDuplication.Texture uddTexture { get; set; }
+        public Mesh mesh { get; set; }
+    }
+
+    private List<MonitorInfo> monitors_ = new List<MonitorInfo>();
+    public List<MonitorInfo> monitors { get { return monitors_; } }
+
+    public class SavedMonitorInfo
+    {
+        public float widthScale = 1f;
+        public float heightScale = 1f;
+    }
+
+    private List<SavedMonitorInfo> savedInfoList_ = new List<SavedMonitorInfo>();
+    public List<SavedMonitorInfo> savedInfoList { get { return savedInfoList_; } }
 
     void Start()
     {
+        uDesktopDuplication.Manager.CreateInstance();
         Create();
     }
 
+    void Update()
+    {
+        if (removeIfUnsupported) {
+            RemoveUnsupportedDisplayAfterRemoveTimer();
+        }
+
+        if (uDesktopDuplication.Manager.monitorCount != monitors.Count) {
+            Recreate();
+        }
+    }
+
     void OnEnable()
     {
         uDesktopDuplication.Manager.onReinitialized += Recreate;
@@ -25,26 +85,52 @@ public class MultipleMonitorCreator : MonoBehaviour
         uDesktopDuplication.Manager.onReinitialized -= Recreate;
     }
 
-    void Create()
+    void RemoveUnsupportedDisplayAfterRemoveTimer()
     {
-        CreateMonitors();
-        LayoutMonitors();
+        if (!hasMonitorUnsupportStateChecked_) {
+            removeWaitTimer_ += Time.deltaTime;
+            if (removeWaitTimer_ > removeWaitDuration) {
+                hasMonitorUnsupportStateChecked_ = true;
+                foreach (var info in monitors) {
+                    if (info.uddTexture.monitor.state == DuplicatorState.Unsupported) {
+                        Destroy(info.gameObject);
+                    }
+                }
+                monitors.RemoveAll(info => info.uddTexture.monitor.state == DuplicatorState.Unsupported);
+            }
+        }
     }
 
-    void CreateMonitors()
+    void ResetRemoveTimer()
     {
-        // Sort monitors in coordinate order
-        var monitors = uDesktopDuplication.Manager.monitors;
-        monitors.Sort((a, b) => a.left - b.left);
+        hasMonitorUnsupportStateChecked_ = false;
+        removeWaitTimer_ = 0f;
+    }
+
+    void Create()
+    {
+        ResetRemoveTimer();
 
         // Create monitors
-        var n = monitors.Count;
-        totalWidth_ = 0f;
-        for (int i = 0 ; i < n; ++i) {
+        var n = uDesktopDuplication.Manager.monitors.Count;
+        for (int i = 0; i < n; ++i) {
             // Create monitor obeject
             var go = Instantiate(monitorPrefab);
-            go.name = "Monitor " + i;
-            monitors_.Add(go);
+            go.name = uDesktopDuplication.Manager.monitors[i].name;
+
+            // Saved infomation
+            if (savedInfoList.Count == i) {
+                savedInfoList.Add(new SavedMonitorInfo());
+                Assert.AreEqual(i, savedInfoList.Count - 1);
+            }
+            var savedInfo = savedInfoList[i];
+
+            // Expand AABB
+            var mesh = go.GetComponent<MeshFilter>().mesh; // clone
+            var aabbScale = mesh.bounds.size;
+            aabbScale.y = Mathf.Max(aabbScale.y, aabbScale.x);
+            aabbScale.z = Mathf.Max(aabbScale.z, aabbScale.x);
+            mesh.bounds = new Bounds(mesh.bounds.center, aabbScale);
 
             // Assign monitor
             var texture = go.GetComponent<uDesktopDuplication.Texture>();
@@ -52,42 +138,63 @@ public class MultipleMonitorCreator : MonoBehaviour
             var monitor = texture.monitor;
 
             // Set width / height
-            go.transform.localScale = new Vector3(monitor.widthMeter, go.transform.localScale.y, monitor.heightMeter);
+            float width = 1f, height = 1f;
+            switch (scaleMode) {
+                case ScaleMode.Real:
+                    width = monitor.widthMeter;
+                    height = monitor.heightMeter;
+                    break;
+                case ScaleMode.Fixed:
+                    width = scale * (monitor.isHorizontal ? monitor.aspect : 1f);
+                    height = scale * (monitor.isHorizontal ? 1f : 1f / monitor.aspect);
+                    break;
+                case ScaleMode.Pixel:
+                    width = scale * (monitor.isHorizontal ? 1f : monitor.aspect) * ((float)monitor.width / 1920);
+                    height = scale * (monitor.isHorizontal ? 1f / monitor.aspect : 1f) * ((float)monitor.width / 1920);
+                    break;
+            }
+
+            width *= savedInfo.widthScale;
+            height *= savedInfo.heightScale;
+
+            if (meshForwardDirection == MeshForwardDirection.Y) {
+                go.transform.localScale = new Vector3(width, go.transform.localScale.y, height);
+            } else {
+                go.transform.localScale = new Vector3(width, height, go.transform.localScale.z);
+            }
 
             // Set parent as this object
             go.transform.SetParent(transform);
 
-            // Calc actual size considering mesh size
-            var scaleX = go.GetComponent<MeshFilter>().sharedMesh.bounds.extents.x * 2f;
-            totalWidth_ += monitor.widthMeter * scaleX;
+            // Save
+            var info = new MonitorInfo();
+            info.gameObject = go;
+            info.originalRotation = go.transform.rotation;
+            info.originalLocalScale = go.transform.localScale;
+            info.uddTexture = texture;
+            info.mesh = mesh;
+            monitors.Add(info);
         }
-    }
 
-    void LayoutMonitors()
-    {
-        // Set positions with margin
-        totalWidth_ += margin * (monitors_.Count - 1);
-        var x = -totalWidth_ / 2;
-        foreach (var go in monitors_) {
-            var monitor = go.GetComponent<uDesktopDuplication.Texture>().monitor;
-            var halfScaleX = go.GetComponent<MeshFilter>().sharedMesh.bounds.extents.x;
-            var width = monitor.widthMeter;
-            var halfWidth = width * halfScaleX;
-            x += halfWidth;
-            go.transform.localPosition = new Vector3(x, 0f, 0f);
-            x += halfWidth + margin;
-        }
+        // Sort monitors in coordinate order
+        monitors.Sort((a, b) => a.uddTexture.monitor.left - b.uddTexture.monitor.left);
     }
 
     void Clear()
     {
-        foreach (var go in monitors_) {
-            Destroy(go);
+        foreach (var info in monitors) {
+            Destroy(info.gameObject);
         }
-        monitors_.Clear();
+        if (removeChildrenWhenClear) {
+            for (int i = 0; i < transform.childCount; ++i) {
+                Destroy(transform.GetChild(i).gameObject);
+            }
+        }
+        monitors.Clear();
     }
 
-    void Recreate()
+    [ContextMenu("Recreate")]
+    public void Recreate()
     {
         Clear();
         Create();

Assets/uDesktopDuplication/Examples/Scripts/MultipleMonitorLayouter.cs

@@ -0,0 +1,54 @@
+using UnityEngine;
+
+[RequireComponent(typeof(MultipleMonitorCreator))]
+public class MultipleMonitorLayouter : MonoBehaviour
+{
+    protected MultipleMonitorCreator creator_;
+    public bool updateEveryFrame = true;
+    public float margin = 0.1f;
+    [Range(0f, 10f)] public float thickness = 1f;
+
+    void Start()
+    {
+        creator_ = GetComponent<MultipleMonitorCreator>();
+        Layout();
+    }
+
+    protected virtual void Update()
+    {
+        margin = Mathf.Max(margin, 0f);
+
+        if (updateEveryFrame) {
+            Layout();
+        }
+    }
+
+    protected virtual void Layout()
+    {
+        var monitors = creator_.monitors;
+        var n = monitors.Count;
+
+        var totalWidth = 0f;
+        foreach (var info in monitors) {
+            var width = info.gameObject.transform.localScale.x * (info.mesh.bounds.extents.x * 2f);
+            totalWidth += width;
+        }
+        totalWidth += margin * (n - 1);
+
+        var x = -totalWidth / 2;
+
+        foreach (var info in monitors) {
+            var width = info.gameObject.transform.localScale.x;
+            x += (width * info.mesh.bounds.extents.x);
+            info.gameObject.transform.localPosition = new Vector3(x, 0f, 0f);
+            info.gameObject.transform.localRotation = info.originalRotation;
+            x += (width * info.mesh.bounds.extents.x) + margin;
+        }
+
+        foreach (var info in monitors) {
+            info.uddTexture.thickness = thickness;
+        }
+    }
+
+}
+

Assets/uDesktopDuplication/Examples/Scripts/MultipleMonitorLayouter.cs.meta

@@ -0,0 +1,12 @@
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+guid: 0db1dcac2dedc724194c423ee75b3bf4
+timeCreated: 1478608632
+licenseType: Pro
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+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/uDesktopDuplication/Examples/Scripts/MultipleMonitorRoundLayouter.cs

@@ -0,0 +1,102 @@
+using UnityEngine;
+using MeshForwardDirection = uDesktopDuplication.Texture.MeshForwardDirection;
+
+public class MultipleMonitorRoundLayouter : MultipleMonitorLayouter
+{
+    [SerializeField] bool debugDraw = true;
+
+    public float radius = 10f;
+    public Vector3 offsetAngle = Vector3.zero;
+
+    void OnDisable()
+    {
+        foreach (var info in creator_.monitors) {
+            info.uddTexture.bend = false;
+        }
+    }
+
+    protected override void Layout()
+    {
+        var monitors = creator_.monitors;
+        var n = monitors.Count;
+
+        // Keep the local scale z of monitors as 1 to bend them correctly.
+        // And save width / height to use same values after reinitialization.
+        for (int i = 0; i < n; ++i) {
+            var info = monitors[i];
+            var savedInfo = creator_.savedInfoList[i];
+            var scale = info.gameObject.transform.localScale;
+            if (creator_.meshForwardDirection == MeshForwardDirection.Y) {
+                scale.y = 1f;
+                savedInfo.widthScale = scale.x / info.originalLocalScale.x;
+                savedInfo.heightScale = scale.z / info.originalLocalScale.z;
+            } else {
+                scale.z = 1f;
+                savedInfo.widthScale = scale.x / info.originalLocalScale.x;
+                savedInfo.heightScale = scale.y / info.originalLocalScale.y;
+            }
+            info.gameObject.transform.localScale = scale;
+        }
+
+        // keep thicness plus value.
+        thickness = Mathf.Max(thickness, 0f);
+
+        // calculate total width
+        var totalWidth = 0f;
+        foreach (var info in monitors) {
+            var width = info.gameObject.transform.localScale.x * (info.mesh.bounds.extents.x * 2f);
+            totalWidth += width;
+        }
+        totalWidth += margin * (n - 1);
+
+        // expand radius if total width is larger than the circumference.
+        radius = Mathf.Max(radius, (totalWidth + margin) / (2 * Mathf.PI));
+
+        // total angle of monitors
+        var totalAngle = totalWidth / radius;
+
+        // layout
+        float angle = -totalAngle / 2;
+        var offsetRot = Quaternion.Euler(offsetAngle);
+        foreach (var info in monitors) {
+            var uddTex = info.uddTexture;
+            var width = info.gameObject.transform.localScale.x * (info.mesh.bounds.extents.x * 2f);
+
+            angle += (width / radius) * 0.5f;
+            var pos = radius * new Vector3(Mathf.Sin(angle), 0f, Mathf.Cos(angle) - 1f);
+            pos += radius * Vector3.forward;
+            pos = offsetRot * pos;
+            pos -= radius * Vector3.forward;
+            uddTex.transform.localPosition = pos;
+            uddTex.transform.localRotation = offsetRot * Quaternion.AngleAxis(angle * Mathf.Rad2Deg, Vector3.up) * info.originalRotation;
+            angle += (width * 0.5f + margin) / radius;
+
+            uddTex.bend = true;
+            uddTex.meshForwardDirection = creator_.meshForwardDirection;
+            uddTex.radius = radius;
+            uddTex.thickness = thickness;
+            uddTex.width = uddTex.transform.localScale.x;
+        }
+    }
+
+    protected override void Update()
+    {
+        base.Update();
+        if (debugDraw) DebugDraw();
+    }
+
+    void DebugDraw()
+    {
+        // draw the circumference in the scene view.
+        var scale = transform.localScale.x;
+        var center = transform.position - Vector3.forward * radius * scale;
+        for (int i = 0; i < 100; ++i) {
+            var a0 = 2 * Mathf.PI * i / 100;
+            var a1 = 2 * Mathf.PI * (i + 1) / 100;
+            var p0 = center + radius * scale * new Vector3(Mathf.Cos(a0), 0f, Mathf.Sin(a0));
+            var p1 = center + radius * scale * new Vector3(Mathf.Cos(a1), 0f, Mathf.Sin(a1));
+            Debug.DrawLine(p0, p1, Color.red);
+        }
+    }
+}
+

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Assets/uDesktopDuplication/Examples/Scripts/RaycastTest.cs

@@ -0,0 +1,23 @@
+using UnityEngine;
+using System.Collections;
+
+public class RaycastTest : MonoBehaviour
+{
+    public Transform from;
+    public Transform to;
+
+    void Update()
+    {
+        if (!from || !to) return;
+
+        Debug.DrawLine(from.position, to.position, Color.red);
+
+        foreach (var uddTexture in GameObject.FindObjectsOfType<uDesktopDuplication.Texture>()) {
+            var result = uddTexture.RayCast(from.position, to.position - from.position);
+            if (result.hit) {
+                Debug.DrawLine(result.position, result.position + result.normal, Color.yellow);
+                Debug.Log("COORD: " + result.coords + ", DESKTOP: " + result.desktopCoord);
+            }
+        }
+    }
+}

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Assets/uDesktopDuplication/Examples/Scripts/ToggleMonitors.cs

@@ -6,10 +6,12 @@ public class ToggleMonitors : MonoBehaviour
     {
         if (Input.GetKeyDown(KeyCode.Tab)) {
             var texture = GetComponent<uDesktopDuplication.Texture>();
+            var id = texture.monitorId;
+            var n = uDesktopDuplication.Manager.monitorCount;
             if (Input.GetKey(KeyCode.LeftShift) || Input.GetKey(KeyCode.RightShift)) {
-                texture.monitorId--;
+                texture.monitorId = (id - 1 < 0) ? 0 : (id - 1);
             } else {
-                texture.monitorId++;
+                texture.monitorId = (id + 1 >= n) ? (n - 1) : (id + 1);
             }
         }
     }

Assets/uDesktopDuplication/Examples/Scripts/UddSceneManager.cs

@@ -0,0 +1,58 @@
+using UnityEngine;
+using UnityEngine.SceneManagement;
+
+public class UddSceneManager : MonoBehaviour
+{
+    public static UddSceneManager instance { get; set; }
+    [SerializeField] string[] scenes;
+    [SerializeField] int sceneNo = 0;
+
+    void Awake()
+    {
+        if (!instance) {
+            instance = this;
+        } else {
+            Destroy(gameObject);
+        }
+    }
+
+    void Start()
+    {
+        DontDestroyOnLoad(gameObject);
+        Load();
+    }
+
+    void Update()
+    {
+        if (Input.GetKeyDown(KeyCode.RightArrow)) {
+            Next();
+        } else if (Input.GetKeyDown(KeyCode.LeftArrow)) {
+            Prev();
+        }
+
+        if (Input.GetKeyDown(KeyCode.R) && (Input.GetKey(KeyCode.LeftControl) || Input.GetKey(KeyCode.RightControl))) {
+            uDesktopDuplication.Manager.instance.Reinitialize();
+        }
+
+        if (Input.GetKeyDown(KeyCode.Escape)) {
+            Application.Quit();
+        }
+    }
+
+    void Next()
+    {
+        sceneNo = (sceneNo + 1) % scenes.Length;
+        Load();
+    }
+
+    void Prev()
+    {
+        sceneNo = (sceneNo + scenes.Length - 1) % scenes.Length;
+        Load();
+    }
+
+    void Load()
+    {
+        SceneManager.LoadScene(scenes[Mathf.Clamp(sceneNo, 0, scenes.Length - 1)]);
+    }
+}

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Assets/uDesktopDuplication/Scripts/Cursor.cs

@@ -1,71 +0,0 @@
-using UnityEngine;
-using System.Collections.Generic;
-
-namespace uDesktopDuplication
-{
-
-[AddComponentMenu("uDesktopDuplication/Cursor"), 
- RequireComponent(typeof(Texture))]
-public class Cursor : MonoBehaviour
-{
-    Vector3 worldPosition { get; set; }
-
-    private Texture uddTexture_;
-    private Monitor monitor { get { return uddTexture_.monitor; } }
-
-    private Texture2D currentTexture_;
-    private Dictionary<Vector2, Texture2D> textures_ = new Dictionary<Vector2, Texture2D>();
-    [SerializeField] Vector2 modelScale = Vector2.one;
-
-    void Start()
-    {
-        uddTexture_ = GetComponent<Texture>();
-    }
-
-    void Update()
-    {
-        if (monitor.isCursorVisible) {
-            UpdatePosition();
-            UpdateTexture();
-            UpdateMaterial();
-        }
-    }
-
-    void UpdatePosition()
-    {
-        var x = (1f * monitor.cursorX / monitor.width  - 0.5f) * modelScale.x;
-        var y = (1f * monitor.cursorY / monitor.height - 0.5f) * modelScale.y;
-        var iy = uddTexture_.invertY ? -1 : +1;
-        var localPos = transform.right * x + iy * transform.up * y;
-        worldPosition = transform.TransformPoint(localPos);
-    }
-
-    void UpdateTexture()
-    {
-        var w = monitor.cursorShapeWidth;
-        var h = monitor.cursorShapeHeight;
-        if (w == 0 || h == 0) return;
-
-        var scale = new Vector2(w, h);
-        if (!textures_.ContainsKey(scale)) {
-            var texture = new Texture2D(w, h, TextureFormat.BGRA32, false);
-            texture.wrapMode = TextureWrapMode.Clamp;
-            textures_.Add(scale, texture);
-        }
-
-        var cursorTexture = textures_[scale];
-        monitor.GetCursorTexture(cursorTexture.GetNativeTexturePtr());
-        uddTexture_.material.SetTexture("_CursorTex", cursorTexture);
-    }
-
-    void UpdateMaterial()
-    {
-        var x = monitor.isCursorVisible ? (float)monitor.cursorX / monitor.width : -9999f;
-        var y = monitor.isCursorVisible ? (float)monitor.cursorY / monitor.height : -9999f;
-        var w = (float)monitor.cursorShapeWidth  / monitor.width;
-        var h = (float)monitor.cursorShapeHeight / monitor.height;
-        uddTexture_.material.SetVector("_CursorPositionScale", new Vector4(x, y, w, h));
-    }
-}
-
-}

Assets/uDesktopDuplication/Scripts/Lib.cs

@@ -1,7 +1,10 @@
-using System;
+using UnityEngine;
+using System;
 using System.Text;
 using System.Runtime.InteropServices;
 
+#pragma warning disable 114, 465
+
 namespace uDesktopDuplication
 {
 
@@ -9,10 +12,12 @@ public enum Message
 {
     None = -1,
     Reinitialized = 0,
+    TextureSizeChanged = 1,
 }
 
 public enum CursorShapeType
 {
+    Unspecified = 0,
     MonoChrome = 1,
     Color = 2,
     MaskedColor = 4,
@@ -27,26 +32,60 @@ public enum MonitorRotation
     Rotate270 = 4
 }
 
-public enum MonitorState
+public enum DuplicatorState
 {
-	NotSet = -1,
-	Available = 0,
-	InvalidArg = 1,
-	AccessDenied = 2,
-	Unsupported = 3,
-	CurrentlyNotAvailable = 4,
-	SessionDisconnected = 5,
-	AccessLost = 6,
+    NotSet = -1,
+    Ready = 0,
+    Running = 1,
+    InvalidArg = 2,
+    AccessDenied = 3,
+    Unsupported = 4,
+    CurrentlyNotAvailable = 5,
+    SessionDisconnected = 6,
+    AccessLost = 7,
+    TextureSizeInconsistent = 8,
+    Unknown = 999,
+}
+
+public enum DebugMode
+{
+    None = 0,
+    File = 1,
+    UnityLog = 2, /* currently has bug when app exits. */
+}
+
+[StructLayout(LayoutKind.Sequential)]
+public struct RECT
+{
+    [MarshalAs(UnmanagedType.I4)]
+    public int left;
+    [MarshalAs(UnmanagedType.I4)]
+    public int top;
+    [MarshalAs(UnmanagedType.I4)]
+    public int right;
+    [MarshalAs(UnmanagedType.I4)]
+    public int bottom;
+}
+
+[StructLayout(LayoutKind.Sequential)]
+public struct DXGI_OUTDUPL_MOVE_RECT
+{
+    public RECT source;
+    public RECT destination;
 }
 
 public static class Lib
 {
     public delegate void MessageHandler(Message message);
+    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+    public delegate void DebugLogDelegate(string str);
 
     [DllImport("uDesktopDuplication")]
-    public static extern void InitializeUDD();
+    public static extern bool IsInitialized();
     [DllImport("uDesktopDuplication")]
-    public static extern void FinalizeUDD();
+    public static extern void Initialize();
+    [DllImport("uDesktopDuplication")]
+    public static extern void Finalize();
     [DllImport("uDesktopDuplication")]
     public static extern void Reinitialize();
     [DllImport("uDesktopDuplication")]
@@ -54,17 +93,31 @@ 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 SetDebugMode(DebugMode mode);
+    [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 bool HasMonitorCountChanged();
+    [DllImport("uDesktopDuplication")]
+    public static extern int GetCursorMonitorId();
+    [DllImport("uDesktopDuplication")]
     public static extern int GetTotalWidth();
     [DllImport("uDesktopDuplication")]
     public static extern int GetTotalHeight();
     [DllImport("uDesktopDuplication")]
-    public static extern void SetTimeout(int timeout);
-    [DllImport("uDesktopDuplication")]
     public static extern IntPtr GetRenderEventFunc();
     [DllImport("uDesktopDuplication")]
-    public static extern MonitorState GetState(int id);
+    public static extern int GetId(int id);
+    [DllImport("uDesktopDuplication")]
+    public static extern DuplicatorState GetState(int id);
     [DllImport("uDesktopDuplication")]
     public static extern void GetName(int id, StringBuilder buf, int len);
     [DllImport("uDesktopDuplication")]
@@ -90,21 +143,37 @@ public static class Lib
     [DllImport("uDesktopDuplication")]
     public static extern bool IsCursorVisible(int id);
     [DllImport("uDesktopDuplication")]
-    public static extern int GetCursorX(int id);
+    public static extern int GetCursorX();
     [DllImport("uDesktopDuplication")]
-    public static extern int GetCursorY(int id);
+    public static extern int GetCursorY();
     [DllImport("uDesktopDuplication")]
-    public static extern int GetCursorShapeWidth(int id);
+    public static extern int GetCursorShapeWidth();
     [DllImport("uDesktopDuplication")]
-    public static extern int GetCursorShapeHeight(int id);
+    public static extern int GetCursorShapeHeight();
     [DllImport("uDesktopDuplication")]
-    public static extern int GetCursorShapePitch(int id);
+    public static extern int GetCursorShapePitch();
     [DllImport("uDesktopDuplication")]
-    public static extern CursorShapeType GetCursorShapeType(int id);
+    public static extern CursorShapeType GetCursorShapeType();
     [DllImport("uDesktopDuplication")]
     public static extern void GetCursorTexture(int id, System.IntPtr ptr);
     [DllImport("uDesktopDuplication")]
     public static extern int SetTexturePtr(int id, IntPtr ptr);
+    [DllImport("uDesktopDuplication")]
+    public static extern int GetMoveRectCount(int id);
+    [DllImport("uDesktopDuplication", EntryPoint = "GetMoveRects")]
+    private static extern IntPtr GetMoveRects_Internal(int id);
+    [DllImport("uDesktopDuplication")]
+    public static extern int GetDirtyRectCount(int id);
+    [DllImport("uDesktopDuplication", EntryPoint = "GetDirtyRects")]
+    private static extern IntPtr GetDirtyRects_Internal(int id);
+    [DllImport("uDesktopDuplication", EntryPoint = "GetPixels")]
+    private static extern bool GetPixels_Internal(int id, System.IntPtr ptr, int x, int y, int width, int height);
+    [DllImport("uDesktopDuplication")]
+    public static extern bool HasBeenUpdated(int id);
+    [DllImport("uDesktopDuplication")]
+    public static extern bool UseGetPixels(int id, bool use);
+    [DllImport("uDesktopDuplication")]
+    public static extern void SetFrameRate(uint frameRate);
 
     public static string GetName(int id)
     {
@@ -112,6 +181,60 @@ public static class Lib
         GetName(id, buf, buf.Capacity);
         return buf.ToString();
     }
+
+    public static DXGI_OUTDUPL_MOVE_RECT[] GetMoveRects(int id)
+    {
+        var count = GetMoveRectCount(id);
+        var rects = new DXGI_OUTDUPL_MOVE_RECT[count];
+        var ptr = GetMoveRects_Internal(id);
+        var size = Marshal.SizeOf(typeof(DXGI_OUTDUPL_MOVE_RECT));
+        for (int i = 0; i < count; ++i) {
+            var data = new IntPtr(ptr.ToInt64() + size * i);
+            rects[i] = (DXGI_OUTDUPL_MOVE_RECT)Marshal.PtrToStructure(data, typeof(DXGI_OUTDUPL_MOVE_RECT));
+        }
+        return rects;
+    }
+
+    public static RECT[] GetDirtyRects(int id)
+    {
+        var count = GetDirtyRectCount(id);
+        var rects = new RECT[count];
+        var ptr = GetDirtyRects_Internal(id);
+        var size = Marshal.SizeOf(typeof(RECT));
+        for (int i = 0; i < count; ++i) {
+            var data = new IntPtr(ptr.ToInt64() + size * i);
+            rects[i] = (RECT)Marshal.PtrToStructure(data, typeof(RECT));
+        }
+        return rects;
+    }
+
+    public static Color32[] GetPixels(int id, int x, int y, int width, int height)
+    {
+        var color = new Color32[width * height];       
+        GetPixels(id, color, x, y, width, height);
+        return color;
+    }
+
+    public static bool GetPixels(int id, Color32[] colors, int x, int y, int width, int height)
+    {
+        if (colors.Length < width * height) {
+            Debug.LogErrorFormat("colors is small.", id, x, y, width, height);
+            return false;
+        }
+		var handle = GCHandle.Alloc(colors, GCHandleType.Pinned);
+		var ptr = handle.AddrOfPinnedObject();
+        if (!GetPixels_Internal(id, ptr, x, y, width, height)) {
+            Debug.LogErrorFormat("GetPixels({0}, {1}, {2}, {3}, {4}) failed.", id, x, y, width, height);
+            return false;
+        }
+        handle.Free();
+        return true;
+    }
+
+    public static Color32 GetPixel(int id, int x, int y)
+    {
+        return GetPixels(id, x, y, 1, 1)[0];
+    }
 }
 
 }

Assets/uDesktopDuplication/Scripts/Manager.cs

@@ -10,21 +10,22 @@ public class Manager : MonoBehaviour
     private static Manager instance_;
     public static Manager instance 
     {
-        get 
-        { 
-            if (instance_) {
-                return instance_;
-            }
+        get { return CreateInstance(); }
+    }
 
-            var manager = FindObjectOfType<Manager>();
-            if (manager) {
-                manager.Awake();
-                return manager;
-            }
+    public static Manager CreateInstance()
+    {
+        if (instance_ != null) return instance_;
 
-            var go = new GameObject("uDesktopDuplicationManager");
-            return go.AddComponent<Manager>();
+        var manager = FindObjectOfType<Manager>();
+        if (manager) {
+            instance_ = manager;
+            return manager;
         }
+
+        var go = new GameObject("uDesktopDuplicationManager");
+        instance_ = go.AddComponent<Manager>();
+        return instance_;
     }
 
     private List<Monitor> monitors_ = new List<Monitor>();
@@ -38,6 +39,11 @@ public class Manager : MonoBehaviour
         get { return Lib.GetMonitorCount(); }
     }
 
+    static public int cursorMonitorId 
+    {
+        get { return Lib.GetCursorMonitorId(); }
+    }
+
     static public Monitor primary
     {
         get 
@@ -46,36 +52,76 @@ public class Manager : MonoBehaviour
         }
     }
 
-    [SerializeField] int desktopDuplicationApiTimeout = 0;
+    [Tooltip("Debug mode is not applied while running.")]
+    [SerializeField] DebugMode debugMode = DebugMode.File;
+
     [SerializeField] float retryReinitializationDuration = 1f;
 
     private Coroutine renderCoroutine_ = null;
-    private bool shouldReinitialize = false;
-    private float reinitializationTimer = 0f;
+    private bool shouldReinitialize_ = false;
+    private float reinitializationTimer_ = 0f;
+    private bool isFirstFrame_ = true;
+
+    public static event Lib.DebugLogDelegate onDebugLog = msg => Debug.Log(msg);
+    public static event Lib.DebugLogDelegate onDebugErr = msg => Debug.LogError(msg);
 
     public delegate void ReinitializeHandler();
     public static event ReinitializeHandler onReinitialized;
 
+    public static Monitor GetMonitor(int id)
+    {
+        if (id < 0 || id >= Manager.monitors.Count) {
+            Debug.LogErrorFormat("[uDD::Error] there is no monitor whose id is {0}.", id);
+            return Manager.primary;
+        }
+        return monitors[Mathf.Clamp(id, 0, Manager.monitorCount - 1)];
+    }
+
     void Awake()
     {
-        Lib.InitializeUDD();
+        // for simple singleton
+
+        if (instance_ == this) {
+            return;
+        }
+
+        if (instance_ != null && instance_ != this) {
+            Destroy(gameObject);
+            return;
+        }
 
-        if (instance_ != null) return;
         instance_ = this;
 
+        Lib.SetDebugMode(debugMode);
+        Lib.SetLogFunc(onDebugLog);
+        Lib.SetErrorFunc(onDebugErr);
+
+        Lib.Initialize();
+
         CreateMonitors();
 
-        Lib.SetTimeout(desktopDuplicationApiTimeout);
+        #if UNITY_2018_1_OR_NEWER
+        Shader.DisableKeyword("USE_GAMMA_TO_LINEAR_SPACE");
+        #else
+        Shader.EnableKeyword("USE_GAMMA_TO_LINEAR_SPACE");
+        #endif
     }
 
     void OnApplicationQuit()
     {
-        Lib.FinalizeUDD();
+        Lib.Finalize();
+        DestroyMonitors();
     }
 
     void OnEnable()
     {
         renderCoroutine_ = StartCoroutine(OnRender());
+        if (!isFirstFrame_) {
+            Reinitialize();
+        }
+
+        Lib.SetDebugMode(debugMode);
+        Lib.SetLogFunc(onDebugLog);
     }
 
     void OnDisable()
@@ -84,6 +130,9 @@ public class Manager : MonoBehaviour
             StopCoroutine(renderCoroutine_);
             renderCoroutine_ = null;
         }
+
+        Lib.SetLogFunc(null);
+        Lib.SetErrorFunc(null);
     }
 
     void Update()
@@ -91,44 +140,54 @@ public class Manager : MonoBehaviour
         Lib.Update();
         ReinitializeIfNeeded();
         UpdateMessage();
-
-        /*
-        foreach (var monitor in monitors_) {
-            Debug.LogFormat("[{0}] {1}", monitor.id, monitor.state);
-        }
-        */
+        isFirstFrame_ = false;
     }
 
     [ContextMenu("Reinitialize")]
-    void Reinitialize()
+    public void Reinitialize()
     {
-        Debug.Log("[uDesktopDuplication] Reinitialize");
+        Debug.Log("[uDD] Reinitialize");
         Lib.Reinitialize();
-        if (onReinitialized != null) onReinitialized();
+        CreateMonitors();
+        if (onReinitialized != null) {
+            onReinitialized();
+        }
     }
 
     void ReinitializeIfNeeded()
     {
+        bool reinitializeNeeded = false;
+
         for (int i = 0; i < monitors.Count; ++i) {
             var monitor = monitors[i];
-            if (monitor.state == MonitorState.NotSet ||
-                monitor.state == MonitorState.AccessLost || 
-                monitor.state == MonitorState.AccessDenied ||
-                monitor.state == MonitorState.SessionDisconnected) {
-                if (!shouldReinitialize) {
-                    shouldReinitialize = true;
-                    reinitializationTimer = 0f;
-                    break;
-                }
+            var state = monitor.state;
+            if (
+                state == DuplicatorState.NotSet ||
+                state == DuplicatorState.AccessLost || 
+                state == DuplicatorState.AccessDenied ||
+                state == DuplicatorState.SessionDisconnected ||
+                state == DuplicatorState.Unknown
+            ) {
+                reinitializeNeeded = true;
+                break;
             }
         }
 
-        if (shouldReinitialize) {
-            if (reinitializationTimer > retryReinitializationDuration) {
+        if (Lib.HasMonitorCountChanged()) {
+            reinitializeNeeded = true;
+        }
+
+        if (!shouldReinitialize_ && reinitializeNeeded) {
+            shouldReinitialize_ = true;
+            reinitializationTimer_ = 0f;
+        }
+
+        if (shouldReinitialize_) {
+            if (reinitializationTimer_ > retryReinitializationDuration) {
                 Reinitialize();
-                shouldReinitialize = false;
+                shouldReinitialize_ = false;
             }
-            reinitializationTimer += Time.deltaTime;
+            reinitializationTimer_ += Time.deltaTime;
         }
     }
 
@@ -136,10 +195,14 @@ public class Manager : MonoBehaviour
     {
         var message = Lib.PopMessage();
         while (message != Message.None) {
+            Debug.Log("[uDD] " + message);
             switch (message) {
                 case Message.Reinitialized:
                     ReinitializeMonitors();
                     break;
+                case Message.TextureSizeChanged:
+                    RecreateTextures();
+                    break;
                 default:
                     break;
             }
@@ -163,18 +226,35 @@ public class Manager : MonoBehaviour
 
     void CreateMonitors()
     {
+        DestroyMonitors();
         for (int i = 0; i < monitorCount; ++i) {
             monitors.Add(new Monitor(i));
         }
     }
 
+    void DestroyMonitors()
+    {
+        for (int i = 0; i < monitors.Count; ++i) {
+            monitors[i].DestroyTexture();
+        }
+        monitors.Clear();
+    }
+
     void ReinitializeMonitors()
     {
         for (int i = 0; i < monitorCount; ++i) {
             if (i == monitors.Count) {
                 monitors.Add(new Monitor(i));
+            } else {
+                monitors[i].Reinitialize();
             }
-            monitors[i].Reinitialize();
+        }
+    }
+
+    void RecreateTextures()
+    {
+        for (int i = 0; i < monitorCount; ++i) {
+            monitors[i].CreateTextureIfNeeded();
         }
     }
 }

Assets/uDesktopDuplication/Scripts/Monitor.cs

@@ -11,24 +11,37 @@ public class Monitor
 
         switch (state)
         {
-            case MonitorState.InvalidArg:
-                Debug.LogErrorFormat("[{0}:{1}] Invalid.", id, name);
+            case DuplicatorState.Ready:
                 break;
-            case MonitorState.AccessDenied:
-                Debug.LogErrorFormat("[{0}:{1}] Access Denied.", id, name);
+            case DuplicatorState.Running:
                 break;
-            case MonitorState.Unsupported:
-                Debug.LogErrorFormat("[{0}:{1}] Unsupported.", id, name);
+            case DuplicatorState.InvalidArg:
+                Debug.LogErrorFormat("[uDD] {0}:{1} => Invalid.", id, name);
                 break;
-            case MonitorState.SessionDisconnected:
-                Debug.LogErrorFormat("[{0}:{1}] Disconnected.", id, name);
+            case DuplicatorState.AccessDenied:
+                Debug.LogWarningFormat("[uDD] {0}:{1} => Access Denied.", id, name);
                 break;
-            case MonitorState.NotSet:
-                Debug.LogErrorFormat("[{0}:{1}] Something wrong.", id, name);
+            case DuplicatorState.Unsupported:
+                Debug.LogWarningFormat("[uDD] {0}:{1} => Unsupported.", id, name);
+                break;
+            case DuplicatorState.SessionDisconnected:
+                Debug.LogWarningFormat("[uDD] {0}:{1} => Disconnected.", id, name);
+                break;
+            case DuplicatorState.NotSet:
+                Debug.LogErrorFormat("[uDD] {0}:{1} => Something wrong.", id, name);
                 break;
             default:
+                Debug.LogErrorFormat("[uDD] {0}:{1} => Unknown error.", id, name);
                 break;
         }
+
+        if (dpiX == 0 || dpiY == 0) {
+            Debug.LogWarningFormat("[uDD] {0}:{1} => Could not get DPI", id, name);
+        }
+    }
+
+    ~Monitor()
+    {
     }
 
     public int id 
@@ -42,14 +55,19 @@ public class Monitor
         get { return id < Manager.monitorCount; } 
     }
 
-    public MonitorState state
+    public DuplicatorState state
     {
         get { return Lib.GetState(id); }
     }
 
     public bool available
     {
-        get { return state == MonitorState.Available; }
+        get 
+        { 
+            return 
+                state == DuplicatorState.Ready || 
+                state == DuplicatorState.Running; 
+        }
     }
 
     public string name
@@ -94,12 +112,22 @@ public class Monitor
 
     public int dpiX
     { 
-        get { return Lib.GetDpiX(id); }
+        get 
+        {
+            var dpi = Lib.GetDpiX(id); 
+            if (dpi == 0) dpi = 100; // when monitors are duplicated
+            return dpi;
+        }
     }
 
     public int dpiY
     { 
-        get { return Lib.GetDpiY(id); }
+        get 
+        {
+            var dpi = Lib.GetDpiY(id); 
+            if (dpi == 0) dpi = 100; // when monitors are duplicated
+            return dpi;
+        }
     }
 
     public float widthMeter
@@ -124,12 +152,22 @@ public class Monitor
 
     public bool isHorizontal
     { 
-        get { return width > height; }
+        get 
+        {
+            return 
+                (rotation == MonitorRotation.Identity) || 
+                (rotation == MonitorRotation.Rotate180);
+        }
     }
 
     public bool isVertical 
     { 
-        get { return height > width; }
+        get 
+        {
+            return 
+                (rotation == MonitorRotation.Rotate90) || 
+                (rotation == MonitorRotation.Rotate270);
+        }
     }
 
     public bool isCursorVisible
@@ -139,27 +177,84 @@ public class Monitor
 
     public int cursorX
     { 
-        get { return Lib.GetCursorX(id); }
+        get { return Lib.GetCursorMonitorId() == id ? Lib.GetCursorX() : -1; }
     }
 
     public int cursorY
     { 
-        get { return Lib.GetCursorY(id); }
+        get { return Lib.GetCursorMonitorId() == id ? Lib.GetCursorY() : -1; }
+    }
+
+    public int systemCursorX
+    { 
+        get 
+        { 
+            var p = Utility.GetCursorPos();
+            return p.x - left;
+        }
+    }
+
+    public int systemCursorY
+    { 
+        get 
+        { 
+            var p = Utility.GetCursorPos();
+            return p.y - top;
+        }
     }
 
     public int cursorShapeWidth
     { 
-        get { return Lib.GetCursorShapeWidth(id); }
+        get { return Lib.GetCursorShapeWidth(); }
     }
 
     public int cursorShapeHeight
     { 
-        get { return Lib.GetCursorShapeHeight(id); }
+        get { return Lib.GetCursorShapeHeight(); }
     }
 
     public CursorShapeType cursorShapeType
     { 
-        get { return Lib.GetCursorShapeType(id); }
+        get { return Lib.GetCursorShapeType(); }
+    }
+
+    public int moveRectCount
+    { 
+        get { return Lib.GetMoveRectCount(id); }
+    }
+
+    public DXGI_OUTDUPL_MOVE_RECT[] moveRects
+    {
+        get { return Lib.GetMoveRects(id); }
+    }
+
+    public int dirtyRectCount
+    { 
+        get { return Lib.GetDirtyRectCount(id); }
+    }
+
+    public RECT[] dirtyRects
+    {
+        get { return Lib.GetDirtyRects(id); }
+    }
+
+    public bool hasBeenUpdated
+    {
+        get { return Lib.HasBeenUpdated(id); }
+    }
+
+    bool useGetPixels_ = false;
+    public bool useGetPixels
+    {
+        get
+        {
+            return useGetPixels_;
+        }
+        set
+        {
+            useGetPixels_ = value;
+            Lib.UseGetPixels(id, value);
+        }
     }
 
     public bool shouldBeUpdated
@@ -168,25 +263,33 @@ public class Monitor
         set;
     }
 
+    private static Texture2D errorTexture_;
+    private static readonly string errorTexturePath = "uDesktopDuplication/Textures/NotAvailable";
+    private Texture2D errorTexture
+    {
+        get 
+        {
+            return errorTexture_ ?? 
+                (errorTexture_ = Resources.Load<Texture2D>(errorTexturePath));   
+        }
+    }
+
     private Texture2D texture_;
+    private System.IntPtr texturePtr_;
     public Texture2D texture 
     {
         get 
         { 
-            if (!available) {
-                return Resources.Load<Texture2D>("uDesktopDuplication/Textures/NotAvailable");   
-            }
-            if (texture_ == null) {
-                CreateTexture();
-            }
+            if (!available) return errorTexture;
+            if (texture_ == null) CreateTextureIfNeeded();
             return texture_;
         }
     }
 
     public void Render()
     {
-        if (texture_ && available) {
-            Lib.SetTexturePtr(id, texture_.GetNativeTexturePtr());
+        if (texture_ && available && texturePtr_ != System.IntPtr.Zero) {
+            Lib.SetTexturePtr(id, texturePtr_);
             GL.IssuePluginEvent(Lib.GetRenderEventFunc(), id);
         }
     }
@@ -196,7 +299,7 @@ public class Monitor
         Lib.GetCursorTexture(id, ptr);
     }
 
-    void CreateTexture()
+    public void CreateTextureIfNeeded()
     {
         if (!available) return;
 
@@ -204,13 +307,8 @@ public class Monitor
         var h = isHorizontal ? height : width;
         bool shouldCreate = true;
 
-        if (texture_) {
-            if (texture_.width != w || texture_.height != h) {
-                if (texture_) Object.DestroyImmediate(texture_);
-                shouldCreate = true;
-            } else { 
-                shouldCreate = false;
-            }
+        if (texture_ && texture_.width == w && texture_.height == h) {
+            shouldCreate = false;
         }
 
         if (w <= 0 || h <= 0) {
@@ -218,13 +316,58 @@ public class Monitor
         }
 
         if (shouldCreate) {
-            texture_ = new Texture2D(w, h, TextureFormat.BGRA32, false);
+            CreateTexture();
+        }
+    }
+
+    void CreateTexture()
+    {
+        DestroyTexture();
+        var w = isHorizontal ? width : height;
+        var h = isHorizontal ? height : width;
+        texture_ = new Texture2D(w, h, TextureFormat.BGRA32, false);
+        texturePtr_ = texture_.GetNativeTexturePtr();
+    }
+
+    public void DestroyTexture()
+    {
+        if (texture_) {
+            Object.Destroy(texture_);
+            texture_ = null;
+            texturePtr_ = System.IntPtr.Zero;
         }
     }
 
     public void Reinitialize()
     {
-        CreateTexture();
+        CreateTextureIfNeeded();
+    }
+
+    public Color32[] GetPixels(int x, int y, int width, int height)
+    {
+        if (!useGetPixels_) {
+            Debug.LogErrorFormat("Please set Monitor[{0}].useGetPixels as true.", id);
+            return null;
+        }
+        return Lib.GetPixels(id, x, y, width, height);
+    }
+
+    public bool GetPixels(Color32[] colors, int x, int y, int width, int height)
+    {
+        if (!useGetPixels_) {
+            Debug.LogErrorFormat("Please set Monitor[{0}].useGetPixels as true.", id);
+            return false;
+        }
+        return Lib.GetPixels(id, colors, x, y, width, height);
+    }
+
+    public Color32 GetPixel(int x, int y)
+    {
+        if (!useGetPixels_) {
+            Debug.LogErrorFormat("Please set Monitor[{0}].useGetPixels as true.", id);
+            return Color.black;
+        }
+        return Lib.GetPixel(id, x, y);
     }
 }
 

Assets/uDesktopDuplication/Scripts/Texture.cs

@@ -6,38 +6,237 @@ namespace uDesktopDuplication
 [AddComponentMenu("uDesktopDuplication/Texture")] 
 public class Texture : MonoBehaviour
 {
-    private Monitor monitor_;
+    Monitor monitor_;
     public Monitor monitor 
     { 
         get { return monitor_; }
         set 
         { 
             monitor_ = value;
-            material = GetComponent<Renderer>().material;
-            material.mainTexture = monitor_.texture;
+            if (monitor_ != null) {
+                material.mainTexture = monitor_.texture;
+                width = transform.localScale.x;
+                rotation = monitor.rotation;
+                invertX = invertX_;
+                invertY = invertY_;
+                useClip = useClip_;
+            }
         }
     }
 
+    int lastMonitorId_ = 0;
     public int monitorId
     { 
         get { return monitor.id; }
-        set { monitor = Manager.monitors[Mathf.Clamp(value, 0, Manager.monitorCount - 1)]; }
+        set { monitor = Manager.GetMonitor(value); }
     }
 
-    public bool invertX = false;
-    public bool invertY = false;
+    [SerializeField] bool invertX_ = false;
+    public bool invertX
+    {
+        get 
+        {
+            return invertX_;
+        }
+        set 
+        {
+            invertX_ = value;
+            if (invertX_) {
+                material.EnableKeyword("INVERT_X");
+            } else {
+                material.DisableKeyword("INVERT_X");
+            }
+        }
+    }
 
+    [SerializeField] bool invertY_ = false;
+    public bool invertY
+    {
+        get 
+        {
+            return invertY_;
+        }
+        set 
+        {
+            invertY_ = value;
+            if (invertY_) {
+                material.EnableKeyword("INVERT_Y");
+            } else {
+                material.DisableKeyword("INVERT_Y");
+            }
+        }
+    }
+
+    public MonitorRotation rotation
+    {
+        get
+        {
+            return monitor.rotation;
+        }
+        private set
+        {
+            switch (value)
+            {
+                case MonitorRotation.Identity:
+                    material.DisableKeyword("ROTATE90");
+                    material.DisableKeyword("ROTATE180");
+                    material.DisableKeyword("ROTATE270");
+                    break;
+                case MonitorRotation.Rotate90:
+                    material.EnableKeyword("ROTATE90");
+                    material.DisableKeyword("ROTATE180");
+                    material.DisableKeyword("ROTATE270");
+                    break;
+                case MonitorRotation.Rotate180:
+                    material.DisableKeyword("ROTATE90");
+                    material.EnableKeyword("ROTATE180");
+                    material.DisableKeyword("ROTATE270");
+                    break;
+                case MonitorRotation.Rotate270:
+                    material.DisableKeyword("ROTATE90");
+                    material.DisableKeyword("ROTATE180");
+                    material.EnableKeyword("ROTATE270");
+                    break;
+                default:
+                    break;
+            }
+        }
+    }
+
+    [SerializeField] bool useClip_ = false;
+    public Vector2 clipPos = Vector2.zero;
+    public Vector2 clipScale = new Vector2(0.2f, 0.2f);
+    public bool useClip
+    {
+        get
+        {
+            return useClip_;
+        }
+        set
+        {
+            useClip_ = value;
+            if (useClip_) {
+                material.EnableKeyword("USE_CLIP");
+            } else {
+                material.DisableKeyword("USE_CLIP");
+            }
+        }
+    }
+
+    public bool bend
+    {
+        get 
+        {
+            return material.GetInt("_Bend") != 0;
+        }
+        set 
+        {
+            if (value) {
+                material.EnableKeyword("BEND_ON");
+                material.SetInt("_Bend", 1);
+            } else {
+                material.DisableKeyword("BEND_ON");
+                material.SetInt("_Bend", 0);
+            }
+        }
+    }
+
+    public enum MeshForwardDirection
+    {
+        Y = 0,
+        Z = 1,
+    }
+    public MeshForwardDirection meshForwardDirection
+    {
+        get 
+        {
+            return (MeshForwardDirection)material.GetInt("_Forward");
+        }
+        set 
+        {
+            switch (value) {
+                case MeshForwardDirection.Y:
+                    material.SetInt("_Forward", 0);
+                    material.EnableKeyword("_FORWARD_Y");
+                    material.DisableKeyword("_FORWARD_Z");
+                    break;
+                case MeshForwardDirection.Z:
+                    material.SetInt("_Forward", 1);
+                    material.DisableKeyword("_FORWARD_Y");
+                    material.EnableKeyword("_FORWARD_Z");
+                    break;
+            }
+        }
+    }
+
+    public enum Culling
+    {
+        Off   = 0,
+        Front = 1,
+        Back  = 2,
+    }
+    public Culling culling
+    {
+        get 
+        {
+            return (Culling)material.GetInt("_Cull");
+        }
+        set 
+        {
+            material.SetInt("_Cull", (int)value);
+        }
+    }
+
+    public float radius
+    {
+        get { return material.GetFloat("_Radius"); }
+        set { material.SetFloat("_Radius", value); }
+    }
+
+    public float width
+    {
+        get { return material.GetFloat("_Width"); }
+        set { material.SetFloat("_Width", value); }
+    }
+
+    public float thickness
+    {
+        get { return material.GetFloat("_Thickness"); }
+        set { material.SetFloat("_Thickness", value); }
+    }
+
+    Material material_;
     public Material material
     {
-        get;
-        private set;
+        get
+        {
+            if (Application.isPlaying) {
+                return material_ ?? (material_ = GetComponent<Renderer>().material); // clone
+            } else {
+                return GetComponent<Renderer>().sharedMaterial;
+            }
+        }
     }
 
-    void Awake()
+    Mesh mesh
     {
-        if (!GetComponent<Cursor>())
+        get 
+        { 
+            return GetComponent<MeshFilter>().sharedMesh; 
+        }
+    }
+    public float worldWidth
+    {
+        get
         {
-            gameObject.AddComponent<Cursor>();
+            return transform.localScale.x * (mesh.bounds.extents.x * 2f);
+        }
+    }
+    public float worldHeight
+    {
+        get
+        {
+            return transform.localScale.y * (mesh.bounds.extents.y * 2f);
         }
     }
 
@@ -46,53 +245,194 @@ public class Texture : MonoBehaviour
         if (monitor == null) {
             monitor = Manager.primary;
         }
+        Manager.onReinitialized += Reinitialize;
+    }
+
+    void OnDisable()
+    {
+        Manager.onReinitialized -= Reinitialize;
     }
 
     void Update()
     {
-        monitor.shouldBeUpdated = true;
+        KeepMonitor();
+        RequireUpdate();
         UpdateMaterial();
     }
 
+    void KeepMonitor()
+    {
+        if (monitor == null) {
+            Reinitialize();
+        } else {
+            lastMonitorId_ = monitorId;
+        }
+    }
+
+    void RequireUpdate()
+    {
+        if (monitor != null)
+        {
+            monitor.shouldBeUpdated = true;
+        }
+    }
+
+    void Reinitialize()
+    {
+        // Monitor instance is released here when initialized.
+        monitor = Manager.GetMonitor(lastMonitorId_);
+    }
+
+    int clipPositionScaleKey_ = Shader.PropertyToID("_ClipPositionScale");
     void UpdateMaterial()
     {
-        if (invertX) {
-            material.EnableKeyword("INVERT_X");
-        } else {
-            material.DisableKeyword("INVERT_X");
+        width = transform.localScale.x;
+
+        if (monitor != null) {
+            rotation = monitor.rotation;
         }
 
-        if (invertY) {
-            material.EnableKeyword("INVERT_Y");
-        } else {
-            material.DisableKeyword("INVERT_Y");
+        material.SetVector(clipPositionScaleKey_, new Vector4(clipPos.x, clipPos.y, clipScale.x, clipScale.y));
+    }
+
+    public Vector3 GetWorldPositionFromCoord(Vector2 coord)
+    {
+        return GetWorldPositionFromCoord((int)coord.x, (int)coord.y);
+    }
+
+    public Vector3 GetWorldPositionFromCoord(int u, int v)
+    {
+        // Local position (scale included).
+        var x =  (float)(u - monitor.width  / 2) / monitor.width;
+        var y = -(float)(v - monitor.height / 2) / monitor.height;
+        var localPos = new Vector3(worldWidth * x, worldHeight * y, 0f);
+
+        // Bending
+        if (bend) {
+            var angle = localPos.x / radius;
+            if (meshForwardDirection == MeshForwardDirection.Y) {
+                localPos.y -= radius * (1f - Mathf.Cos(angle));
+            } else {
+                localPos.z -= radius * (1f - Mathf.Cos(angle));
+            }
+            localPos.x  = radius * Mathf.Sin(angle);
         }
 
-        switch (monitor.rotation)
-        {
-            case MonitorRotation.Identity:
-                material.DisableKeyword("ROTATE90");
-                material.DisableKeyword("ROTATE180");
-                material.DisableKeyword("ROTATE270");
-                break;
-            case MonitorRotation.Rotate90:
-                material.EnableKeyword("ROTATE90");
-                material.DisableKeyword("ROTATE180");
-                material.DisableKeyword("ROTATE270");
-                break;
-            case MonitorRotation.Rotate180:
-                material.DisableKeyword("ROTATE90");
-                material.EnableKeyword("ROTATE180");
-                material.DisableKeyword("ROTATE270");
-                break;
-            case MonitorRotation.Rotate270:
-                material.DisableKeyword("ROTATE90");
-                material.DisableKeyword("ROTATE180");
-                material.EnableKeyword("ROTATE270");
-                break;
-            default:
-                break;
+        // To world position
+        return transform.position + (transform.rotation * localPos);
+    }
+
+    public struct RayCastResult
+    {
+        public bool hit;
+        public Texture texture;
+        public Vector3 position;
+        public Vector3 normal;
+        public Vector2 coords;
+        public Vector2 desktopCoord;
+    }
+
+    static readonly RayCastResult raycastFailedResult = new RayCastResult {
+        hit          = false,
+        texture      = null,
+        position     = Vector3.zero,
+        normal       = Vector3.forward,
+        coords       = Vector2.zero,
+        desktopCoord = Vector2.zero,
+    };
+
+    // This function can be used only for vertical (= MeshForwardDirection.Z) plane.
+    public RayCastResult RayCast(Vector3 from, Vector3 dir)
+    {
+        var r = radius;
+        var center = transform.position - transform.forward * r;
+
+        // Localize the start point of the ray and the direction.
+        var trs = Matrix4x4.TRS(center, transform.rotation, Vector3.one);
+        var invTrs = trs.inverse;
+        Vector3 localFrom = invTrs.MultiplyPoint3x4(from);
+        Vector3 localDir = invTrs.MultiplyVector(dir).normalized;
+
+        // Calculate the intersection points of circle and line on the X-Z plane.
+        var a = localDir.z / localDir.x;
+        var b = localFrom.z - a * localFrom.x;
+
+        var aa = a * a;
+        var bb = b * b;
+        var ab = a * b;
+        var rr = r * r;
+
+        var s = aa * rr - bb + rr;
+        if (s < 0f) {
+            return raycastFailedResult;
         }
+        s = Mathf.Sqrt(s);
+
+        var t = aa + 1;
+
+        var lx0 = (-s - ab) / t;
+        var lz0 = (b - a * s) / t;
+        var to0 = new Vector3(lx0, 0f, lz0);
+
+        var lx1 = (s - ab) / t;
+        var lz1 = (a * s + b) / t;
+        var to1 = new Vector3(lx1, 0f, lz1);
+
+        var to = (Vector3.Dot(localDir, to0) > 0f) ? to0 : to1;
+
+        // Check if the point is inner angle of mesh width.
+        var toAngle = Mathf.Atan2(to.x, to.z);
+        var halfWidthAngle = (worldWidth / radius) * 0.5f;
+        if (Mathf.Abs(toAngle) > halfWidthAngle) {
+            return raycastFailedResult;
+        }
+
+        // Calculate the intersection points on XZ-Y plane.
+        var v = to - localFrom;
+        var l = Mathf.Sqrt(Mathf.Pow(v.x, 2f) + Mathf.Pow(v.z, 2f));
+        var ly = localFrom.y + l * localDir.y / Mathf.Sqrt(Mathf.Pow(localDir.x, 2f) + Mathf.Pow(localDir.z, 2f));
+
+        // Check if the point is inner mesh height.
+        var halfHeight = worldHeight * 0.5f;
+        if (Mathf.Abs(ly) > halfHeight) {
+            return raycastFailedResult;
+        }
+
+        // Check hit position is in the range of the ray.
+        to.y = ly;
+        var hitPos = trs.MultiplyPoint(to);
+
+        if ((hitPos - from).magnitude > dir.magnitude) {
+            return raycastFailedResult;
+        }
+
+        // Calculate coordinates.
+        var coordX = toAngle / halfWidthAngle * 0.5f;
+        var coordY = ly / halfHeight * 0.5f;
+        int desktopX = monitor.left + (int)((coordX + 0.5f) * monitor.width);
+        int desktopY = monitor.top + (int)((0.5f - coordY) * monitor.height);
+
+        // Calculate normal.
+        var normal = new Vector3(-to.x, 0f, -to.z);
+
+        // Result
+        return new RayCastResult {
+            hit = true,
+            texture = this,
+            position = trs.MultiplyPoint(to),
+            normal = trs.MultiplyVector(normal).normalized,
+            coords = new Vector2(coordX, coordY),
+            desktopCoord = new Vector2(desktopX, desktopY)
+        };
+    }
+
+    public static RayCastResult RayCastAll(Vector3 from, Vector3 dir)
+    {
+        foreach (var uddTexture in GameObject.FindObjectsOfType<uDesktopDuplication.Texture>()) {
+            var result = uddTexture.RayCast(from, dir);
+            if (result.hit) return result;
+        }
+        return raycastFailedResult;
     }
 }
 

Assets/uDesktopDuplication/Scripts/Utility.cs

@@ -0,0 +1,42 @@
+using UnityEngine;
+using System.Collections;
+using System.Runtime.InteropServices;
+
+namespace uDesktopDuplication
+{
+
+public struct MousePoint
+{
+    public int x;
+    public int y;
+}
+
+public static class Utility
+{
+    [DllImport("user32.dll", SetLastError = true)]
+    [return: MarshalAs(UnmanagedType.Bool)]
+    public static extern bool GetCursorPos(out MousePoint point);
+
+    public static MousePoint GetCursorPos()
+    {
+        MousePoint p;
+        if (!GetCursorPos(out p)) {
+            p.x = -1;
+            p.y = -1;
+        }
+        return p;
+    }
+
+    public static void WaitThenDo(System.Action func, float sec)
+    {
+        Manager.instance.StartCoroutine(_WaitThenDo(func, sec));
+    }
+
+    public static IEnumerator _WaitThenDo(System.Action func, float sec)
+    {
+        yield return new WaitForSeconds(sec);
+        func();
+    }
+}
+
+}

Assets/uDesktopDuplication/Scripts/Utility.cs.meta

@@ -1,6 +1,6 @@
 fileFormatVersion: 2
-guid: d2d9e4ca459ecb44da8815bafe9655c5
-timeCreated: 1477635630
+guid: 6c7e8da181b03ce4fb343ffa33cbb929
+timeCreated: 1479043365
 licenseType: Pro
 MonoImporter:
   serializedVersion: 2

Assets/uDesktopDuplication/Shaders/uDD_Common.cginc

@@ -2,6 +2,7 @@
 #define UDD_COMMON_CGINC
 
 #include "UnityCG.cginc"
+#include "./uDD_Params.cginc"
 
 struct appdata
 {
@@ -20,7 +21,7 @@ struct Input
     float2 uv_MainTex;
 };
 
-float2 uddInvertUV(float2 uv)
+inline float2 uddInvertUV(float2 uv)
 {
 #ifdef INVERT_X
     uv.x = 1.0 - uv.x;
@@ -31,7 +32,7 @@ float2 uddInvertUV(float2 uv)
     return uv;
 }
 
-float2 uddRotateUV(float2 uv)
+inline float2 uddRotateUV(float2 uv)
 {
 #ifdef ROTATE90
     float2 tmp = uv;
@@ -48,37 +49,85 @@ float2 uddRotateUV(float2 uv)
     return uv;
 }
 
+inline float2 uddClipUV(float2 uv)
+{
+    uv.x = _ClipX + uv.x * _ClipWidth;
+    uv.y = _ClipY + uv.y * _ClipHeight;
+    return uv;
+}
+
 inline void uddConvertToLinearIfNeeded(inout fixed3 rgb)
 {
+#ifdef USE_GAMMA_TO_LINEAR_SPACE
     if (!IsGammaSpace()) {
         rgb = GammaToLinearSpace(rgb);
     }
+#endif
 }
 
-inline fixed4 uddGetScreenTexture(sampler2D tex, float2 uv)
-{
-    fixed4 c = tex2D(tex, uv);
-    return c;
-}
-
-inline fixed4 uddGetCursorTexture(sampler2D tex, float2 uv, fixed4 cursorPosScale)
-{
-    uv.x = (uv.x - cursorPosScale.x) / cursorPosScale.z;
-    uv.y = (uv.y - cursorPosScale.y) / cursorPosScale.w;
-    fixed4 c = tex2D(tex, uv);
-    fixed a = c.a * step(0, uv.x) * step(0, uv.y) * step(uv.x, 1) * step(uv.y, 1);
-    c *= step(0.01, a);
-    return c;
-}
-
-inline fixed4 uddGetScreenTextureWithCursor(sampler2D screenTex, sampler2D cursorTex, float2 uv, fixed4 cursorPosScale)
+inline fixed4 uddGetTexture(sampler2D tex, float2 uv)
 {
     uv = uddInvertUV(uv);
-    fixed4 screen = uddGetScreenTexture(screenTex, uddRotateUV(uv));
-    fixed4 cursor = uddGetCursorTexture(cursorTex, uv, cursorPosScale);
-    fixed4 color = lerp(screen, cursor, cursor.a);
-    uddConvertToLinearIfNeeded(color.rgb);
-    return color;
+#ifdef USE_CLIP
+    uv = uddClipUV(uv);
+#endif
+    fixed4 c = tex2D(tex, uddRotateUV(uv));
+    uddConvertToLinearIfNeeded(c.rgb);
+    return c;
+}
+
+inline fixed4 uddGetScreenTexture(float2 uv)
+{
+    return uddGetTexture(_MainTex, uv);
+}
+
+inline void uddBendVertex(inout float3 v, half radius, half width, half thickness)
+{
+#ifdef BEND_ON
+    half angle = width * v.x / radius;
+    #ifdef _FORWARD_Z
+    v.z *= thickness;
+    radius += v.z;
+    v.z -= radius * (1 - cos(angle));
+    #elif _FORWARD_Y
+    v.y *= thickness;
+    radius += v.y;
+    v.y += radius * (1 - cos(angle));
+    #endif
+    v.x = radius * sin(angle) / width;
+#else
+    #ifdef _FORWARD_Z
+    v.z *= thickness;
+    #elif _FORWARD_Y
+    v.y *= thickness;
+    #endif
+#endif
+}
+
+inline float3 uddRotateY(float3 n, float angle)
+{
+    float c = cos(angle);
+    float s = sin(angle);
+    return float3(c * n.x - s * n.z, n.y, s * n.x + c * n.z);
+}
+
+inline float3 uddRotateX(float3 n, float angle)
+{
+    float c = cos(angle);
+    float s = sin(angle);
+    return float3(n.x, c * n.y + s * n.z, -s * n.y + c * n.z);
+}
+
+inline void uddBendNormal(float4 x, inout float3 n, half radius, half width)
+{
+#ifdef BEND_ON
+    half angle = width * x / radius;
+    #ifdef _FORWARD_Z
+    n = uddRotateY(n, -angle);
+    #elif _FORWARD_Y
+    n = uddRotateX(n, -angle);
+    #endif
+#endif
 }
 
 #endif

Assets/uDesktopDuplication/Shaders/uDD_Params.cginc

@@ -4,7 +4,18 @@
 sampler2D _MainTex;
 fixed4 _Color;
 sampler2D _CursorTex;
+
 half4 _CursorPositionScale;
+#define _CursorX _CursorPositionScale.x
+#define _CursorY _CursorPositionScale.y
+#define _CursorWidth _CursorPositionScale.z
+#define _CursorHeight _CursorPositionScale.w
+
+half4 _ClipPositionScale;
+#define _ClipX _ClipPositionScale.x
+#define _ClipY _ClipPositionScale.y
+#define _ClipWidth _ClipPositionScale.z
+#define _ClipHeight _ClipPositionScale.w
 
 #ifndef SURFACE_SHADER
 float4 _MainTex_ST;

Assets/uDesktopDuplication/Shaders/uDD_Standard.shader

@@ -7,6 +7,11 @@ Properties
     _MainTex ("Albedo (RGB)", 2D) = "white" {}
     _Glossiness ("Smoothness", Range(0, 1)) = 0.5
     _Metallic ("Metallic", Range(0, 1)) = 0.0
+    [KeywordEnum(Y, Z)] _Forward("Mesh Forward Direction", Int) = 0
+    [Toggle(BEND_ON)] _Bend("Use Bend", Int) = 0
+    [PowerSlider(10.0)] _Radius("Bend Radius", Range(1, 100)) = 30
+    [PowerSlider(10.0)] _Thickness("Thickness", Range(0.01, 10)) = 1
+    _Width("Width", Range(0.0, 10.0)) = 1.0
     [KeywordEnum(Off, Front, Back)] _Cull("Culling", Int) = 2
 }
 
@@ -19,22 +24,33 @@ SubShader
     CGPROGRAM
 
     #pragma target 3.0
-    #pragma surface surf Standard fullforwardshadows
+    #pragma surface surf Standard fullforwardshadows vertex:vert
     #pragma multi_compile ___ INVERT_X
     #pragma multi_compile ___ INVERT_Y
-    #pragma multi_compile ___ VERTICAL
     #pragma multi_compile ___ ROTATE90 ROTATE180 ROTATE270
+    #pragma multi_compile ___ USE_CLIP
+    #pragma multi_compile ___ BEND_ON
+    #pragma multi_compile _FORWARD_Y _FORWARD_Z
+    #pragma multi_compile ___ USE_GAMMA_TO_LINEAR_SPACE
 
     #define SURFACE_SHADER
     #include "./uDD_Common.cginc"
-    #include "./uDD_Params.cginc"
 
     half _Glossiness;
     half _Metallic;
+    half _Radius;
+    half _Width;
+    half _Thickness;
+
+    void vert(inout appdata_full v)
+    {
+        uddBendNormal(v.vertex.x, v.normal, _Radius, _Width);
+        uddBendVertex(v.vertex.xyz, _Radius, _Width, _Thickness);
+    }
 
     void surf(Input IN, inout SurfaceOutputStandard o) 
     {
-        fixed4 c = uddGetScreenTextureWithCursor(_MainTex, _CursorTex, IN.uv_MainTex, _CursorPositionScale) * _Color;
+        fixed4 c = uddGetScreenTexture(IN.uv_MainTex) * _Color;
         o.Albedo = c.rgb;
         o.Metallic = _Metallic;
         o.Smoothness = _Glossiness;

Assets/uDesktopDuplication/Shaders/uDD_Unlit.shader

@@ -5,8 +5,11 @@ Properties
 {
     _Color ("Color", Color) = (1, 1, 1, 1)
     _MainTex ("Texture", 2D) = "white" {}
-    [Toggle(USE_BEND)] _UseBend("UseBend", Float) = 0
-    [PowerSlider(10.0)]_Radius ("Radius", Range(10, 100)) = 30
+    [KeywordEnum(Y, Z)] _Forward("Mesh Forward Direction", Int) = 0
+    [Toggle(BEND_ON)] _Bend("Use Bend", Int) = 0
+    [PowerSlider(10.0)] _Radius("Bend Radius", Range(1, 100)) = 30
+    [PowerSlider(10.0)] _Thickness("Thickness", Range(0.01, 10)) = 1
+    _Width("Width", Range(0.0, 10.0)) = 1.0
     [KeywordEnum(Off, Front, Back)] _Cull("Culling", Int) = 2
 }
 
@@ -20,18 +23,15 @@ Cull [_Cull]
 CGINCLUDE
 
 #include "./uDD_Common.cginc"
-#include "./uDD_Params.cginc"
 
-fixed _Radius;
+half _Radius;
+half _Width;
+half _Thickness;
 
 v2f vert(appdata v)
 {
     v2f o;
-#ifdef USE_BEND
-    half a = v.vertex.x / _Radius;
-    v.vertex.x =  _Radius * sin(a);
-    v.vertex.y += _Radius * (1 - cos(a));
-#endif
+    uddBendVertex(v.vertex.xyz, _Radius, _Width, _Thickness);
     o.vertex = UnityObjectToClipPos(v.vertex);
     o.uv = TRANSFORM_TEX(v.uv, _MainTex);
     return o;
@@ -39,7 +39,7 @@ v2f vert(appdata v)
 
 fixed4 frag(v2f i) : SV_Target
 {
-    return uddGetScreenTextureWithCursor(_MainTex, _CursorTex, i.uv, _CursorPositionScale);
+    return uddGetScreenTexture(i.uv);
 }
 
 ENDCG
@@ -51,9 +51,11 @@ Pass
     #pragma fragment frag
     #pragma multi_compile ___ INVERT_X
     #pragma multi_compile ___ INVERT_Y
-    #pragma multi_compile ___ VERTICAL
-    #pragma shader_feature ___ USE_BEND
     #pragma multi_compile ___ ROTATE90 ROTATE180 ROTATE270
+    #pragma multi_compile ___ USE_CLIP
+    #pragma multi_compile ___ BEND_ON
+    #pragma multi_compile _FORWARD_Y _FORWARD_Z
+    #pragma multi_compile ___ USE_GAMMA_TO_LINEAR_SPACE
     ENDCG
 }
 

Assets/uDesktopDuplication/Shaders/uDD_Unlit_BlackMask.shader

@@ -6,6 +6,11 @@ Properties
     _Color ("Color", Color) = (1, 1, 1, 1)
     _MainTex ("Texture", 2D) = "white" {}
     _Mask ("Mask", Range(0, 1)) = 0.1
+    [KeywordEnum(Y, Z)] _Forward("Mesh Forward Direction", Int) = 0
+    [Toggle(BEND_ON)] _Bend("Use Bend", Int) = 0
+    [PowerSlider(10.0)] _Radius("Bend Radius", Range(1, 100)) = 30
+    [PowerSlider(10.0)] _Thickness("Thickness", Range(0.01, 10)) = 1
+    _Width("Width", Range(0.0, 10.0)) = 1.0
     [KeywordEnum(Off, Front, Back)] _Cull("Culling", Int) = 2
 }
 
@@ -21,13 +26,16 @@ Blend SrcAlpha OneMinusSrcAlpha
 CGINCLUDE
 
 #include "./uDD_Common.cginc"
-#include "./uDD_Params.cginc"
 
 fixed _Mask;
+half _Radius;
+half _Width;
+half _Thickness;
 
 v2f vert(appdata v)
 {
     v2f o;
+    uddBendVertex(v.vertex.xyz, _Radius, _Width, _Thickness);
     o.vertex = UnityObjectToClipPos(v.vertex);
     o.uv = TRANSFORM_TEX(v.uv, _MainTex);
     return o;
@@ -35,7 +43,7 @@ v2f vert(appdata v)
 
 fixed4 frag(v2f i) : SV_Target
 {
-    fixed4 tex = uddGetScreenTextureWithCursor(_MainTex, _CursorTex, i.uv, _CursorPositionScale);
+    fixed4 tex = uddGetScreenTexture(i.uv);
     fixed alpha = pow((tex.r + tex.g + tex.b) / 3.0, _Mask);
     return fixed4(tex.rgb * _Color.rgb, alpha * _Color.a);
 }
@@ -49,8 +57,11 @@ Pass
     #pragma fragment frag
     #pragma multi_compile ___ INVERT_X
     #pragma multi_compile ___ INVERT_Y
-    #pragma multi_compile ___ VERTICAL
     #pragma multi_compile ___ ROTATE90 ROTATE180 ROTATE270
+    #pragma multi_compile ___ USE_CLIP
+    #pragma multi_compile ___ BEND_ON
+    #pragma multi_compile _FORWARD_Y _FORWARD_Z
+    #pragma multi_compile ___ USE_GAMMA_TO_LINEAR_SPACE
     ENDCG
 }
 

Assets/uDesktopDuplication/Shaders/uDD_Unlit_Displacement.shader

@@ -0,0 +1,179 @@
+Shader "uDesktopDuplication/Unlit_Displacement"
+{
+
+Properties
+{
+    _Color ("Color", Color) = (1, 1, 1, 1)
+    _MainTex ("Texture", 2D) = "white" {}
+    [KeywordEnum(Y, Z)] _Forward("Mesh Forward Direction", Int) = 0
+    [Toggle(BEND_ON)] _Bend("Use Bend", Int) = 0
+    [PowerSlider(10.0)] _Radius("Bend Radius", Range(1, 100)) = 30
+    _Width ("Width", Range(0.0, 10.0)) = 1.92
+    [PowerSlider(10.0)] _Thickness("Thickness", Range(0.01, 10)) = 1
+    [KeywordEnum(Off, Front, Back)] _Cull("Culling", Int) = 2
+    _DispTex ("Displacement Map", 2D) = "black" {}
+    _DispFactor("Displacement Factor", Range(0, 5.0)) = 1
+    _TessMinDist("Tessellation Min Distance", Range(0.1, 100.0)) = 1.0
+    _TessMaxDist("Tessellation Max Distance", Range(0.1, 100.0)) = 5.0
+    _TessFactor("Tessellation Factor", Range(0.1, 50.0)) = 10.0
+}
+
+SubShader
+{
+
+Tags { "RenderType"="Opaque" }
+
+Cull [_Cull]
+
+CGINCLUDE
+
+#include "./uDD_Common.cginc"
+#include "Tessellation.cginc"
+
+half _Radius;
+half _Width;
+half _Thickness;
+Texture2D _DispTex;
+SamplerState sampler_DispTex;
+half _DispFactor;
+half _TessMinDist;
+half _TessMaxDist;
+half _TessFactor;
+
+struct VsInput
+{
+    float3 vertex   : POSITION;
+    float3 normal   : NORMAL;
+    float2 texcoord : TEXCOORD0;
+};
+
+struct HsInput
+{
+    float4 f4Position : POS;
+    float3 f3Normal   : NORMAL;
+    float2 f2TexCoord : TEXCOORD;
+};
+
+struct HsControlPointOutput
+{
+    float3 f3Position : POS;
+    float3 f3Normal   : NORMAL;
+    float2 f2TexCoord : TEXCOORD;
+};
+
+struct HsConstantOutput
+{
+    float fTessFactor[3]    : SV_TessFactor;
+    float fInsideTessFactor : SV_InsideTessFactor;
+};
+
+struct DsOutput
+{
+    float4 f4Position : SV_Position;
+    float2 f2TexCoord : TEXCOORD0;
+};
+
+HsInput vert(VsInput i)
+{
+    HsInput o;
+    o.f4Position = float4(i.vertex, 1.0);
+    o.f3Normal   = i.normal;
+    o.f2TexCoord = i.texcoord;
+    return o;
+}
+
+[domain("tri")]
+[partitioning("integer")]
+[outputtopology("triangle_cw")]
+[patchconstantfunc("hullConst")]
+[outputcontrolpoints(3)]
+HsControlPointOutput hull(InputPatch<HsInput, 3> i, uint id : SV_OutputControlPointID)
+{
+    HsControlPointOutput o = (HsControlPointOutput)0;
+    o.f3Position = i[id].f4Position.xyz;
+    o.f3Normal   = i[id].f3Normal;
+    o.f2TexCoord = i[id].f2TexCoord;
+    return o;
+}
+
+HsConstantOutput hullConst(InputPatch<HsInput, 3> i)
+{
+    HsConstantOutput o = (HsConstantOutput)0;
+    
+    float4 p0 = i[0].f4Position;
+    float4 p1 = i[1].f4Position;
+    float4 p2 = i[2].f4Position;
+    float4 tessFactor = UnityDistanceBasedTess(p0, p1, p2, _TessMinDist, _TessMaxDist, _TessFactor);
+
+    o.fTessFactor[0] = tessFactor.x;
+    o.fTessFactor[1] = tessFactor.y;
+    o.fTessFactor[2] = tessFactor.z;
+    o.fInsideTessFactor = tessFactor.w;
+           
+    return o;
+}
+
+[domain("tri")]
+DsOutput domain(
+    HsConstantOutput hsConst, 
+    const OutputPatch<HsControlPointOutput, 3> i, 
+    float3 bary : SV_DomainLocation)
+{
+    DsOutput o = (DsOutput)0;
+
+    float3 f3Position = 
+        bary.x * i[0].f3Position + 
+        bary.y * i[1].f3Position +
+        bary.z * i[2].f3Position;
+
+    float3 f3Normal = normalize(
+        bary.x * i[0].f3Normal +
+        bary.y * i[1].f3Normal + 
+        bary.z * i[2].f3Normal);
+
+    o.f2TexCoord = 
+        bary.x * i[0].f2TexCoord + 
+        bary.y * i[1].f2TexCoord + 
+        bary.z * i[2].f2TexCoord;
+
+    uddBendNormal(f3Position.x, f3Normal, _Radius, _Width);
+    uddBendVertex(f3Position, _Radius, _Width, _Thickness);
+
+    float disp = length(_DispTex.SampleLevel(sampler_DispTex, o.f2TexCoord, 0)) * _DispFactor;
+    f3Position.xyz += f3Normal * disp;
+
+    o.f4Position = UnityObjectToClipPos(float4(f3Position.xyz, 1.0));
+        
+    return o;
+}
+
+
+fixed4 frag(DsOutput i) : SV_Target
+{
+    return uddGetScreenTexture(i.f2TexCoord);
+}
+
+ENDCG
+
+Pass
+{
+    CGPROGRAM
+    #pragma vertex vert
+    #pragma fragment frag
+    #pragma hull hull
+    #pragma domain domain
+    #pragma multi_compile ___ INVERT_X
+    #pragma multi_compile ___ INVERT_Y
+    #pragma multi_compile ___ ROTATE90 ROTATE180 ROTATE270
+    #pragma multi_compile ___ USE_CLIP
+    #pragma multi_compile ___ BEND_ON
+    #pragma multi_compile _FORWARD_Y _FORWARD_Z
+    #pragma multi_compile ___ USE_GAMMA_TO_LINEAR_SPACE
+    ENDCG
+}
+
+}
+
+Fallback "Unlit/Texture"
+
+}

Assets/uDesktopDuplication/Shaders/uDD_Unlit_Displacement.shader.meta

@@ -0,0 +1,9 @@
+fileFormatVersion: 2
+guid: 05df46eb51b13c84eabbdf4c53cc8db7
+timeCreated: 1480072905
+licenseType: Pro
+ShaderImporter:
+  defaultTextures: []
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/uDesktopDuplication/Shaders/uDD_Unlit_Transparent.shader

@@ -5,6 +5,11 @@ Properties
 {
     _Color ("Color", Color) = (1, 1, 1, 1)
     _MainTex ("Texture", 2D) = "white" {}
+    [KeywordEnum(Y, Z)] _Forward("Mesh Forward Direction", Int) = 0
+    [Toggle(BEND_ON)] _Bend("Use Bend", Int) = 0
+    [PowerSlider(10.0)] _Radius("Bend Radius", Range(1, 100)) = 30
+    [PowerSlider(10.0)] _Thickness("Thickness", Range(0.01, 10)) = 1
+    _Width("Width", Range(0.0, 10.0)) = 1.0
     [KeywordEnum(Off, Front, Back)] _Cull("Culling", Int) = 2
 }
 
@@ -20,11 +25,15 @@ Blend SrcAlpha OneMinusSrcAlpha
 CGINCLUDE
 
 #include "./uDD_Common.cginc"
-#include "./uDD_Params.cginc"
+
+half _Radius;
+half _Width;
+half _Thickness;
 
 v2f vert(appdata v)
 {
     v2f o;
+    uddBendVertex(v.vertex.xyz, _Radius, _Width, _Thickness);
     o.vertex = UnityObjectToClipPos(v.vertex);
     o.uv = TRANSFORM_TEX(v.uv, _MainTex);
     return o;
@@ -32,7 +41,7 @@ v2f vert(appdata v)
 
 fixed4 frag(v2f i) : SV_Target
 {
-    return fixed4(uddGetScreenTextureWithCursor(_MainTex, _CursorTex, i.uv, _CursorPositionScale).rgb, 1.0) * _Color;
+    return fixed4(uddGetScreenTexture(i.uv).rgb, 1.0) * _Color;
 }
 
 ENDCG
@@ -44,8 +53,11 @@ Pass
     #pragma fragment frag
     #pragma multi_compile ___ INVERT_X
     #pragma multi_compile ___ INVERT_Y
-    #pragma multi_compile ___ VERTICAL
     #pragma multi_compile ___ ROTATE90 ROTATE180 ROTATE270
+    #pragma multi_compile ___ USE_CLIP
+    #pragma multi_compile ___ BEND_ON
+    #pragma multi_compile _FORWARD_Y _FORWARD_Z
+    #pragma multi_compile ___ USE_GAMMA_TO_LINEAR_SPACE
     ENDCG
 }
 

Plugins/uDesktopDuplication/uDesktopDuplication.def

@@ -0,0 +1,5 @@
+LIBRARY
+
+EXPORTS
+    UnityPluginLoad
+    UnityPluginUnload

Plugins/uDesktopDuplication/uDesktopDuplication/Common.cpp

@@ -0,0 +1,79 @@
+#pragma once
+
+#include <queue>
+#include <d3d11.h>
+
+#include "IUnityInterface.h"
+#include "IUnityGraphicsD3D11.h"
+#include "Common.h"
+#include "Debug.h"
+
+using namespace Microsoft::WRL;
+
+
+
+extern IUnityInterfaces* g_unity;
+extern std::unique_ptr<MonitorManager> g_manager;
+extern std::queue<Message> g_messages;
+
+
+IUnityInterfaces* GetUnity()
+{
+    return g_unity;
+}
+
+
+ComPtr<ID3D11Device> GetDevice()
+{
+    return GetUnity()->Get<IUnityGraphicsD3D11>()->GetDevice();
+}
+
+
+const std::unique_ptr<MonitorManager>& GetMonitorManager()
+{
+    return g_manager;
+}
+
+
+LUID GetUnityAdapterLuid()
+{
+    const auto device = GetUnity()->Get<IUnityGraphicsD3D11>()->GetDevice();
+
+    Microsoft::WRL::ComPtr<IDXGIDevice1> dxgiDevice;
+    if (FAILED(device->QueryInterface(IID_PPV_ARGS(&dxgiDevice)))){
+        Debug::Error("QueryInterface from IUnityGraphicsD3D11 to IDXGIDevice1 failed.");
+        return LUID();
+    }
+
+    Microsoft::WRL::ComPtr<IDXGIAdapter> dxgiAdapter;
+    if (FAILED(dxgiDevice->GetAdapter(&dxgiAdapter))) {
+        Debug::Error("QueryInterface from IDXGIDevice1 to IDXGIAdapter failed.");
+        return LUID();
+    }
+
+    DXGI_ADAPTER_DESC adapterDesc;
+    dxgiAdapter->GetDesc(&adapterDesc);
+
+    return adapterDesc.AdapterLuid;
+}
+
+
+void SendMessageToUnity(Message message)
+{
+    g_messages.push(message);
+}
+
+
+ScopedTimer::ScopedTimer(TimerFuncType&& func)
+    : func_(func)
+    , start_(std::chrono::high_resolution_clock::now())
+{
+}
+
+
+ScopedTimer::~ScopedTimer()
+{
+    const auto end = std::chrono::high_resolution_clock::now();
+    const auto time = std::chrono::duration_cast<microseconds>(end - start_);
+    func_(time);
+}

Plugins/uDesktopDuplication/uDesktopDuplication/Common.h

@@ -1,15 +1,177 @@
+#pragma once
+
+#include <functional>
 #include <memory>
-#include "IUnityInterface.h"
+#include <chrono>
+#include <wrl/client.h>
 
-class MonitorManager;
 
+
+// Unity interface getter
+struct IUnityInterfaces;
 IUnityInterfaces* GetUnity();
-ID3D11Device* GetDevice();
+
+// ID3D11Device (in Unity) getter
+struct ID3D11Device;
+Microsoft::WRL::ComPtr<ID3D11Device> GetDevice();
+
+// Manager getter
+class MonitorManager;
 const std::unique_ptr<MonitorManager>& GetMonitorManager();
 
+// Get adapter LUID to check the adapter of the monitor is same as Unity one.
+LUID GetUnityAdapterLuid();
+
+
+
+// Releaser
+class ScopedReleaser
+{
+public:
+    using ReleaseFuncType = std::function<void()>;
+    ScopedReleaser(ReleaseFuncType&& func) : func_(func) {}
+    ~ScopedReleaser() { func_(); }
+
+private:
+    const ReleaseFuncType func_;
+};
+
+
+
+// Timer
+class ScopedTimer
+{
+public:
+    using microseconds = std::chrono::microseconds;
+    using TimerFuncType = std::function<void(microseconds)>;
+    ScopedTimer(TimerFuncType&& func);
+    ~ScopedTimer();
+
+private:
+    const TimerFuncType func_;
+    const std::chrono::time_point<std::chrono::steady_clock> start_;
+};
+
+
+
+// Message is pooled and fetch from Unity.
 enum class Message
 {
     None = -1,
     Reinitialized = 0,
+    TextureSizeChanged = 1,
 };
-void SendMessageToUnity(Message message);
+
+void SendMessageToUnity(Message message);
+
+
+
+// Buffer
+template <class T>
+class Buffer
+{
+public:
+    Buffer() 
+    {
+    }
+
+    Buffer(const Buffer& other)
+    {
+        value_.reset();
+        size_ = 0;
+        ExpandIfNeeded(other.size_);
+        memcpy_s(value_.get(), size_, other.value_.get(), other.size_);
+    }
+
+    Buffer<T>& operator=(const Buffer& other)
+    {
+        if (&other == this) return *this;
+
+        value_.reset();
+        size_ = 0;
+        ExpandIfNeeded(other.size_);
+        memcpy_s(value_.get(), size_, other.value_.get(), other.size_);
+
+        return *this;
+    }
+
+    ~Buffer() 
+    {
+    }
+
+    bool Empty() const
+    {
+        return !value_;
+    }
+
+    void ExpandIfNeeded(UINT size)
+    {
+        if (size > size_)
+        {
+            size_ = size;
+            value_ = std::make_unique<T[]>(size);
+        }
+    }
+
+    void Reset()
+    {
+        value_.reset();
+        size_ = 0;
+    }
+
+    UINT Size() const
+    {
+        return size_;
+    }
+
+    T* Get() const
+    {
+        return value_.get();
+    }
+
+    T* Get(UINT offset) const
+    {
+        return (value_.get() + offset);
+    }
+
+    template <class U>
+    U* As() const
+    {
+        return reinterpret_cast<U*>(Get());
+    }
+
+    template <class U>
+    U* As(UINT offset) const
+    {
+        return reinterpret_cast<U*>(Get(offset));
+    }
+
+    operator bool() const
+    {
+        return value_ != nullptr;
+    }
+
+    const T operator [](UINT index) const
+    {
+        if (index >= size_)
+        {
+            Debug::Error("Array index out of range: ", index, size_);
+            return T(0);
+        }
+        return value_[index];
+    }
+
+    T& operator [](UINT index)
+    {
+        if (index >= size_)
+        {
+            Debug::Error("Array index out of range: ", index, size_);
+            return value_[0];
+        }
+        return value_[index];
+    }
+
+private:
+    std::unique_ptr<T[]> value_;
+    UINT size_ = 0;
+};

Plugins/uDesktopDuplication/uDesktopDuplication/Cursor.cpp

@@ -1,227 +1,417 @@
 #include <d3d11.h>
-#include "Common.h"
-#include "MonitorManager.h"
-#include "Monitor.h"
+
 #include "Cursor.h"
+#include "Debug.h"
+#include "Monitor.h"
+#include "Duplicator.h"
+
+using namespace Microsoft::WRL;
 
 
-Cursor::Cursor(Monitor* monitor)
-    : monitor_(monitor)
+
+Cursor::Cursor()
 {
 }
 
 
 Cursor::~Cursor()
 {
-    if (apiBuffer_ != nullptr)
-    {
-        delete[] apiBuffer_;
-        apiBuffer_ = nullptr;
-    }
-    if (bgra32Buffer_ != nullptr)
-    {
-        delete[] bgra32Buffer_;
-        bgra32Buffer_ = nullptr;
-    }
 }
 
 
-void Cursor::UpdateBuffer(const DXGI_OUTDUPL_FRAME_INFO& frameInfo)
+void Cursor::UpdateBuffer(Duplicator* duplicator, const DXGI_OUTDUPL_FRAME_INFO& frameInfo)
 {
     if (frameInfo.LastMouseUpdateTime.QuadPart == 0)
     {
         return;
     }
 
+    isVisible_ = frameInfo.PointerPosition.Visible != 0;
     x_ = frameInfo.PointerPosition.Position.x;
     y_ = frameInfo.PointerPosition.Position.y;
-    if (frameInfo.PointerPosition.Visible != 0) {
-        GetMonitorManager()->SetCursorMonitorId(monitor_->GetId());
-        timestamp_ = frameInfo.LastMouseUpdateTime;
-        isVisible_ = frameInfo.PointerPosition.Visible != 0;
-    }
+    timestamp_ = frameInfo.LastMouseUpdateTime;
 
     if (frameInfo.PointerShapeBufferSize == 0)
     {
         return;
     }
 
-    // Increase the buffer size if needed
-    if (frameInfo.PointerShapeBufferSize > apiBufferSize_)
+    buffer_.ExpandIfNeeded(frameInfo.PointerShapeBufferSize);
+    if (!buffer_) 
     {
-        if (apiBuffer_) delete[] apiBuffer_;
-        apiBuffer_ = new BYTE[frameInfo.PointerShapeBufferSize];
-        apiBufferSize_ = frameInfo.PointerShapeBufferSize;
+        return;
     }
-    if (apiBuffer_ == nullptr) return;
 
     // Get mouse pointer information
     UINT bufferSize;
-    const auto hr = monitor_->GetDeskDupl()->GetFramePointerShape(
-        frameInfo.PointerShapeBufferSize,
-        reinterpret_cast<void*>(apiBuffer_),
+    DXGI_OUTDUPL_POINTER_SHAPE_INFO shapeInfo;
+    const auto hr = duplicator->GetDuplication()->GetFramePointerShape(
+        buffer_.Size(),
+        buffer_.Get(),
         &bufferSize,
-        &shapeInfo_);
+        &shapeInfo);
+
     if (FAILED(hr))
     {
-        delete[] apiBuffer_;
-        apiBuffer_ = nullptr;
-        apiBufferSize_ = 0;
+        Debug::Error("Cursor::UpdateBuffer() => GetFramePointerShape() failed.");
+        buffer_.Reset();
+        return;
+    }
+
+    shapeInfo_ = shapeInfo;
+}
+
+
+void Cursor::UpdateTexture(
+    Duplicator* duplicator, 
+    const ComPtr<ID3D11Texture2D>& desktopTexture)
+{
+    auto monitor = duplicator->GetMonitor();
+
+    // Check desktop texure
+    if (desktopTexture == nullptr) 
+    {
+        Debug::Error("Cursor::UpdateTexture() => Desktop texture is null.");
+        return;
+    }
+
+    // Cursor information
+    const auto cursorImageWidth  = GetWidth();
+    const auto cursorImageHeight = GetHeight();
+    const auto cursorImagePitch  = GetPitch();
+
+    // Monitor orientation
+    const auto monitorRot = static_cast<DXGI_MODE_ROTATION>(monitor->GetRotation());
+    const auto isMonitorPortrait = 
+        monitorRot == DXGI_MODE_ROTATION_ROTATE90 || 
+        monitorRot == DXGI_MODE_ROTATION_ROTATE270;
+
+    // Captured size (desktop cooridinates).
+    auto capturedImageWidth  = !isMonitorPortrait ? cursorImageWidth  : cursorImageHeight;
+    auto capturedImageHeight = !isMonitorPortrait ? cursorImageHeight : cursorImageWidth;
+
+    // Convert the buffer given by API into BGRA32
+    const UINT bgraBufferSize = cursorImageWidth * cursorImageHeight * 4;
+    bgraBuffer_.ExpandIfNeeded(bgraBufferSize);
+    
+    // Check buffers
+    if (!bgraBuffer_ || !buffer_) 
+    {
+        Debug::Error("Cursor::UpdateTexture() => no buffer.");
+        return;
+    }
+
+    // Desktop size
+    const int monitorWidth = monitor->GetWidth();
+    const int monitorHeight = monitor->GetHeight();
+    const int desktopImageWidth  = !isMonitorPortrait ? monitorWidth  : monitorHeight;
+    const int desktopImageHeight = !isMonitorPortrait ? monitorHeight : monitorWidth;
+
+    // x_, y_ are cooridinates in rotated monitor.
+    // desktopX, desktopY are coordinates in captured desktop image (always landscape).
+    int desktopX, desktopY;
+    switch (monitorRot)
+    {
+        case DXGI_MODE_ROTATION_ROTATE90:
+        {
+            desktopX = y_;
+            desktopY = (desktopImageHeight - 1) - x_ - cursorImageWidth;
+            break;
+        }
+        case DXGI_MODE_ROTATION_ROTATE180:
+        {
+            desktopX = (desktopImageWidth  - 1) - x_ - cursorImageWidth;
+            desktopY = (desktopImageHeight - 1) - y_ - cursorImageHeight;
+            break;
+        }
+        case DXGI_MODE_ROTATION_ROTATE270:
+        {
+            desktopX = (desktopImageWidth - 1) - y_ - cursorImageHeight;
+            desktopY = x_;
+            break;
+        }
+        case DXGI_MODE_ROTATION_IDENTITY:
+        case DXGI_MODE_ROTATION_UNSPECIFIED:
+        default:
+        {
+            desktopX = x_;
+            desktopY = y_;
+            break;
+        }
+    }
+
+    // Calculate information to capture desktop image under cursor.
+    int cursorOffsetX = 0;
+    int cursorOffsetY = 0;
+    int capturedImageLeft   = desktopX;
+    int capturedImageTop    = desktopY;
+    int capturedImageRight  = desktopX + capturedImageWidth;
+    int capturedImageBottom = desktopY + capturedImageHeight;
+
+    if (capturedImageLeft < 0)
+    {
+        capturedImageWidth -= -desktopX;
+        cursorOffsetX = -desktopX;
+        capturedImageLeft = 0;
+    }
+
+    if (capturedImageRight >= desktopImageWidth) 
+    {
+        capturedImageWidth -= capturedImageRight - desktopImageWidth;
+        capturedImageRight = desktopImageWidth - 1;
+    }
+
+    if (capturedImageTop < 0)
+    {
+        capturedImageHeight -= -desktopY;
+        cursorOffsetY = -desktopY;
+        capturedImageTop = 0;
+    }
+
+    if (capturedImageBottom >= desktopImageHeight) 
+    {
+        capturedImageHeight -= capturedImageBottom - desktopImageHeight;
+        capturedImageBottom = desktopImageHeight - 1;
+    }
+
+    // Check if box is inner desktop area
+    if (capturedImageLeft   < 0 || 
+        capturedImageTop    < 0 || 
+        capturedImageRight  >= desktopImageWidth || 
+        capturedImageBottom >= desktopImageHeight)
+    {
+        Debug::Error("Cursor::UpdateTexture() => box is out of area.");
+        Debug::Error(
+            "    ",
+            "(", capturedImageLeft, ", ", capturedImageTop, ")", 
+            " ~ (", capturedImageRight, ", ", capturedImageBottom, ") > ",
+            "(", desktopImageWidth, ", ", desktopImageHeight, ")");
+        return;
+    }
+
+    if (capturedImageWidth == 0 || capturedImageHeight == 0)
+    {
+        return;
+    }
+
+    capturedImageArea_ = D3D11_BOX 
+    { 
+        static_cast<UINT>(capturedImageLeft), 
+        static_cast<UINT>(capturedImageTop),
+        0, 
+        static_cast<UINT>(capturedImageRight), 
+        static_cast<UINT>(capturedImageBottom), 
+        1 
+    };
+
+    // Create texture for capturing desktop image
+    ComPtr<ID3D11Texture2D> texture;
+    {
+        D3D11_TEXTURE2D_DESC desc;
+        desc.Width              = capturedImageWidth;
+        desc.Height             = capturedImageHeight;
+        desc.MipLevels          = 1;
+        desc.ArraySize          = 1;
+        desc.Format             = DXGI_FORMAT_B8G8R8A8_UNORM;
+        desc.SampleDesc.Count   = 1;
+        desc.SampleDesc.Quality = 0;
+        desc.Usage              = D3D11_USAGE_STAGING;
+        desc.BindFlags          = 0;
+        desc.CPUAccessFlags     = D3D11_CPU_ACCESS_READ;
+        desc.MiscFlags          = 0;
+
+        if (FAILED(duplicator->GetDevice()->CreateTexture2D(&desc, nullptr, &texture)))
+        {
+            Debug::Error("Cursor::UpdateTexture() => GetDevice()->CreateTexture2D() failed.");
+            return;
+        }
+    }
+
+    // Copy desktop image to the texture
+    {
+        ComPtr<ID3D11DeviceContext> context;
+        duplicator->GetDevice()->GetImmediateContext(&context);
+        context->CopySubresourceRegion(texture.Get(), 0, 0, 0, 0, desktopTexture.Get(), 0, &capturedImageArea_);
+    }
+
+    // Get mapped surface to access pixels in CPU
+    ComPtr<IDXGISurface> surface;
+    if (FAILED(texture.As(&surface)))
+    {
+        Debug::Error("Cursor::UpdateTexture() => texture.As() failed.");
+        return;
+    }
+
+    DXGI_MAPPED_RECT mappedSurface;
+    if (FAILED(surface->Map(&mappedSurface, DXGI_MAP_READ)))
+    {
+        Debug::Error("Cursor::UpdateTexture() => surface->Map() failed.");
+        return;
+    }
+
+    // Finally, get the desktop texture under the mouse cursor.
+    const auto desktop32 = reinterpret_cast<UINT*>(mappedSurface.pBits);
+    const UINT desktopPitch = mappedSurface.Pitch / sizeof(UINT);
+
+    // Rotate cursor image to match the monitor orientation
+    Buffer<BYTE> rotatedBuffer_;
+    rotatedBuffer_.ExpandIfNeeded(buffer_.Size());
+
+    for (int y = 0; y < capturedImageHeight; ++y)
+    {
+        for (int x = 0; x < capturedImageWidth; ++x)
+        {
+            // Cursor coordinates
+            int cursorX, cursorY;
+
+            switch (monitorRot)
+            {
+                case DXGI_MODE_ROTATION_ROTATE90:
+                {
+                    cursorX = (cursorImageWidth - 1) - (y + cursorOffsetY);
+                    cursorY = (x + cursorOffsetX);
+                    break;
+                }
+                case DXGI_MODE_ROTATION_ROTATE180:
+                {
+                    cursorX = (cursorImageWidth  - 1) - (x + cursorOffsetX);
+                    cursorY = (cursorImageHeight - 1) - (y + cursorOffsetY);
+                    break;
+                }
+                case DXGI_MODE_ROTATION_ROTATE270:
+                {
+                    cursorX = (y + cursorOffsetY);
+                    cursorY = (cursorImageHeight - 1) - (x + cursorOffsetX);
+                    break;
+                }
+                case DXGI_MODE_ROTATION_IDENTITY:
+                case DXGI_MODE_ROTATION_UNSPECIFIED:
+                default:
+                {
+                    cursorX = (x + cursorOffsetX);
+                    cursorY = (y + cursorOffsetY);
+                    break;
+                }
+            }
+
+            const auto outputIndex = y * capturedImageWidth + x;
+            const auto desktopIndex = y * desktopPitch + x;
+            const auto cursorIndex = cursorY * cursorImageWidth + cursorX;
+            const auto buffer32 = buffer_.As<UINT>();
+            auto output32 = bgraBuffer_.As<UINT>();
+
+            switch (GetType())
+            {
+                case DXGI_OUTDUPL_POINTER_SHAPE_TYPE_MONOCHROME:
+                {
+                    BYTE mask = 0b10000000 >> (cursorX % 8);
+                    const BYTE andMask = buffer_[cursorX / 8 + cursorY * cursorImagePitch] & mask;
+                    const BYTE xorMask = buffer_[cursorX / 8 + (cursorY + cursorImageHeight) * cursorImagePitch] & mask;
+                    const UINT andMask32 = andMask ? 0xFFFFFFFF : 0x00000000;
+                    const UINT xorMask32 = xorMask ? 0xFFFFFFFF : 0x00000000;
+                    output32[outputIndex] = (desktop32[desktopIndex] & andMask32) ^ xorMask32;
+                    break;
+                }
+                case DXGI_OUTDUPL_POINTER_SHAPE_TYPE_MASKED_COLOR:
+                {
+                    UINT mask = 0xFF000000 & buffer32[cursorIndex];
+                    if (mask)
+                    {
+                        output32[outputIndex] = (desktop32[desktopIndex] ^ buffer32[cursorIndex]) | 0xFF000000;
+                    }
+                    else
+                    {
+                        output32[outputIndex] = buffer32[cursorIndex] | 0xFF000000;
+                    }
+                    break;
+                }
+                case DXGI_OUTDUPL_POINTER_SHAPE_TYPE_COLOR:
+                {
+                    const auto desktop = reinterpret_cast<BYTE*>(&desktop32[desktopIndex]);
+                    const auto desktopB = desktop[0];
+                    const auto desktopG = desktop[1];
+                    const auto desktopR = desktop[2];
+                    const auto desktopA = desktop[3];
+
+                    const auto cursor = buffer_.Get(cursorIndex * 4);
+                    const auto cursorB = cursor[0];
+                    const auto cursorG = cursor[1];
+                    const auto cursorR = cursor[2];
+                    const auto cursorA = cursor[3];
+
+                    const auto a0 = cursorA / 255.f;
+                    const auto a1 = 1.f - a0;
+
+                    auto output = reinterpret_cast<BYTE*>(&output32[outputIndex]);
+                    output[0] = static_cast<BYTE>(cursorB * a0 + desktopB * a1);
+                    output[1] = static_cast<BYTE>(cursorG * a0 + desktopG * a1);
+                    output[2] = static_cast<BYTE>(cursorR * a0 + desktopR * a1);
+                    output[3] = desktopA;
+
+                    break;
+                }
+                default:
+                {
+                    Debug::Error("Cursor::UpdateTexture() => Unknown cursor type");
+                    return;
+                }
+            }
+        }
+    }
+
+    if (FAILED(surface->Unmap()))
+    {
+        Debug::Error("Cursor::UpdateTexture() => surface->Unmap() failed.");
+        return;
     }
 }
 
 
-void Cursor::UpdateTexture()
+void Cursor::Draw(const Microsoft::WRL::ComPtr<ID3D11Texture2D>& texture)
 {
-    // cursor type
-    const bool isMono = GetType() == DXGI_OUTDUPL_POINTER_SHAPE_TYPE_MONOCHROME;
-    const bool isColorMask = GetType() == DXGI_OUTDUPL_POINTER_SHAPE_TYPE_MASKED_COLOR;
-
-    // Size
-    const auto w = GetWidth();
-    const auto h = GetHeight();
-    const auto p = GetPitch();
-
-    // Convert the buffer given by API into BGRA32
-    const UINT bgraBufferSize = w * h * 4;
-    if (bgraBufferSize > bgra32BufferSize_)
+    if (texture == nullptr) 
     {
-        if (bgra32Buffer_) delete[] bgra32Buffer_;
-        bgra32Buffer_ = new BYTE[bgraBufferSize];
-        bgra32BufferSize_ = bgraBufferSize;
-    }
-    if (bgra32Buffer_ == nullptr) return;
-
-    // If masked, copy the desktop image and merge it with masked image.
-    if (isMono || isColorMask)
-    {
-        HRESULT hr;
-
-        D3D11_TEXTURE2D_DESC desc;
-        desc.Width = w;
-        desc.Height = h;
-        desc.MipLevels = 1;
-        desc.ArraySize = 1;
-        desc.Format = DXGI_FORMAT_B8G8R8A8_UNORM;
-        desc.SampleDesc.Count = 1;
-        desc.SampleDesc.Quality = 0;
-        desc.Usage = D3D11_USAGE_STAGING;
-        desc.BindFlags = 0;
-        desc.CPUAccessFlags = D3D11_CPU_ACCESS_READ;
-        desc.MiscFlags = 0;
-
-        ID3D11Texture2D* texture = nullptr;
-        hr = GetDevice()->CreateTexture2D(&desc, nullptr, &texture);
-        if (FAILED(hr)) 
-        {
-            return;
-        }
-
-        D3D11_BOX box;
-        box.front = 0;
-        box.back = 1;
-        box.left = x_;
-        box.top = y_;
-        box.right = x_ + w;
-        box.bottom = y_ + h;
-
-        ID3D11DeviceContext* context;
-        GetDevice()->GetImmediateContext(&context);
-        context->CopySubresourceRegion(texture, 0, 0, 0, 0, monitor_->GetUnityTexture(), 0, &box);
-        context->Release();
-
-        IDXGISurface* surface = nullptr;
-        hr = texture->QueryInterface(__uuidof(IDXGISurface), (void**)&surface);
-        texture->Release();
-        if (FAILED(hr))
-        {
-            return;
-        }
-
-        DXGI_MAPPED_RECT mappedSurface;
-        hr = surface->Map(&mappedSurface, DXGI_MAP_READ);
-        if (FAILED(hr))
-        {
-            surface->Release();
-            return;
-        }
-
-        // Finally, get the texture behind the mouse cursor.
-        const auto desktop32 = reinterpret_cast<UINT*>(mappedSurface.pBits);
-        const UINT desktopPitch = mappedSurface.Pitch / sizeof(UINT);
-
-        // Access RGBA values at the same time
-        auto output32 = reinterpret_cast<UINT*>(bgra32Buffer_);
-
-        if (isMono)
-        {
-            for (int row = 0; row < h; ++row) 
-            {
-                BYTE mask = 0x80;
-                for (int col = 0; col < w; ++col) 
-                {
-                    const int i = row * w + col;
-                    const BYTE andMask = apiBuffer_[col / 8 + row * p] & mask;
-                    const BYTE xorMask = apiBuffer_[col / 8 + (row + h) * p] & mask;
-                    const UINT andMask32 = andMask ? 0xFFFFFFFF : 0xFF000000;
-                    const UINT xorMask32 = xorMask ? 0x00FFFFFF : 0x00000000;
-                    output32[i] = (desktop32[row * desktopPitch + col] & andMask32) ^ xorMask32;
-                    mask = (mask == 0x01) ? 0x80 : (mask >> 1);
-                }
-            }
-        }
-        else // DXGI_OUTDUPL_POINTER_SHAPE_TYPE_MASKED_COLOR
-        {
-            const auto buffer32 = reinterpret_cast<UINT*>(apiBuffer_);
-
-            for (int row = 0; row < h; ++row) 
-            {
-                for (int col = 0; col < w; ++col) 
-                {
-                    const int i = row * w + col;
-                    const int j = row * p / sizeof(UINT) + col;
-
-                    UINT mask = 0xFF000000 & buffer32[j];
-                    if (mask)
-                    {
-                        output32[i] = (desktop32[row * desktopPitch + col] ^ buffer32[j]) | 0xFF000000;
-                    }
-                    else
-                    {
-                        output32[i] = buffer32[j] | 0xFF000000;
-                    }
-                }
-            }
-        }
-
-        hr = surface->Unmap();
-        surface->Release();
-        if (FAILED(hr))
-        {
-            return;
-        }
-    }
-    else // DXGI_OUTDUPL_POINTER_SHAPE_TYPE_COLOR
-    {
-        auto output32 = reinterpret_cast<UINT*>(bgra32Buffer_);
-        const auto buffer32 = reinterpret_cast<UINT*>(apiBuffer_);
-        for (int i = 0; i < w * h; ++i) 
-        {
-            output32[i] = buffer32[i];
-        }
+        Debug::Error("Cursor::UpdateTexture() => Desktop texture is null.");
+        return;
     }
 
-    return;
+    const auto capturedImageWidth = capturedImageArea_.right - capturedImageArea_.left;
+    ComPtr<ID3D11DeviceContext> context;
+    GetDevice()->GetImmediateContext(&context);
+    context->UpdateSubresource(texture.Get(), 0, &capturedImageArea_, bgraBuffer_.Get(), capturedImageWidth * 4, 0);
 }
 
 
 void Cursor::GetTexture(ID3D11Texture2D* texture)
 {
-    if (bgra32Buffer_ == nullptr) return;
-    ID3D11DeviceContext* context;
+    if (!bgraBuffer_)
+    {
+        Debug::Error("Cursor::GetTexture() => bgra32Buffer is null.");
+        return;
+    }
+
+    if (texture == nullptr)
+    {
+        Debug::Error("Cursor::GetTexture() => The given texture is null.");
+        return;
+    }
+
+    D3D11_TEXTURE2D_DESC desc;
+    texture->GetDesc(&desc);
+    if ((int)desc.Width < GetWidth() || (int)desc.Height < GetHeight())
+    {
+        char buf[256];
+        sprintf_s(buf, 256,
+            "Cursor::GetTexture() => The given texture has smaller width / height.\n"
+            "Given => (%d, %d)  Buffer => (%d, %d)",
+            desc.Width, desc.Height, GetWidth(), GetHeight());
+        Debug::Error(buf);
+        return;
+    }
+
+    ComPtr<ID3D11DeviceContext> context;
     GetDevice()->GetImmediateContext(&context);
-    context->UpdateSubresource(texture, 0, nullptr, bgra32Buffer_, shapeInfo_.Width * 4, 0);
-    context->Release();
+    context->UpdateSubresource(texture, 0, nullptr, bgraBuffer_.Get(), GetWidth() * 4, 0);
 }
 
 
@@ -266,4 +456,4 @@ int Cursor::GetPitch() const
 int Cursor::GetType() const
 {
     return shapeInfo_.Type;
-}
+}

Plugins/uDesktopDuplication/uDesktopDuplication/Cursor.h

@@ -1,16 +1,26 @@
+#pragma once
+
 #include <d3d11.h>
 #include <dxgi1_2.h>
+#include <wrl/client.h>
 #include <memory>
 
-class Monitor;
+#include "Common.h"
+
+class Duplicator;
 
 class Cursor
 {
 public:
-    explicit Cursor(Monitor* monitor);
+    explicit Cursor();
     ~Cursor();
-    void UpdateBuffer(const DXGI_OUTDUPL_FRAME_INFO& frameInfo);
-    void UpdateTexture();
+    void UpdateBuffer(
+        Duplicator* duplicator, 
+        const DXGI_OUTDUPL_FRAME_INFO& frameInfo);
+    void UpdateTexture(
+        Duplicator* duplicator,
+        const Microsoft::WRL::ComPtr<ID3D11Texture2D>& desktopTexture);
+    void Draw(const Microsoft::WRL::ComPtr<ID3D11Texture2D>& texture);
     void GetTexture(ID3D11Texture2D* texture);
 
     bool IsVisible() const;
@@ -22,14 +32,12 @@ public:
     int GetType() const;
 
 private:
-    Monitor* monitor_;
     bool isVisible_ = false;
     int x_ = -1;
     int y_ = -1;
-    BYTE* apiBuffer_ = nullptr;
-    UINT apiBufferSize_ = 0;
-    BYTE* bgra32Buffer_ = nullptr;
-    UINT bgra32BufferSize_ = 0;
+    Buffer<BYTE> buffer_;
+    Buffer<BYTE> bgraBuffer_;
     DXGI_OUTDUPL_POINTER_SHAPE_INFO shapeInfo_;
     LARGE_INTEGER timestamp_;
+    D3D11_BOX capturedImageArea_;
 };

Plugins/uDesktopDuplication/uDesktopDuplication/Debug.cpp

@@ -0,0 +1,42 @@
+#pragma once
+
+#include <cstdio>
+#include "Debug.h"
+
+
+
+decltype(Debug::isInitialized_) Debug::isInitialized_ = false;
+decltype(Debug::mode_)          Debug::mode_ = Debug::Mode::File;
+decltype(Debug::logFunc_)       Debug::logFunc_ = nullptr;
+decltype(Debug::errFunc_)       Debug::errFunc_ = nullptr;
+decltype(Debug::fs_)            Debug::fs_;
+decltype(Debug::ss_)            Debug::ss_;
+decltype(Debug::mutex_)         Debug::mutex_;
+
+
+void Debug::Initialize()
+{
+    if (isInitialized_) return;
+    isInitialized_ = true;
+    
+    if (mode_ == Mode::File)
+    {
+        fs_.open("uDesktopDuplication.log");
+        Debug::Log("Start");
+    }
+}
+
+
+void Debug::Finalize()
+{
+    if (!isInitialized_) return;
+    isInitialized_ = false;
+
+    if (mode_ == Mode::File)
+    {
+        Debug::Log("Stop");
+        fs_.close();
+    }
+    Debug::SetLogFunc(nullptr);
+    Debug::SetErrorFunc(nullptr);
+}

Plugins/uDesktopDuplication/uDesktopDuplication/Debug.h

@@ -0,0 +1,161 @@
+#pragma once
+
+#include <time.h>
+#include <fstream>
+#include <sstream>
+#include <mutex>
+
+#include "Common.h"
+#include "IUnityInterface.h"
+
+
+// Debug flag
+#define UDD_DEBUG_ON
+
+
+// Logging
+class Debug
+{
+public:
+    enum class Mode
+    {
+        None = 0,
+        File = 1,
+        UnityLog = 2,
+    };
+
+    using DebugLogFuncPtr = void(UNITY_INTERFACE_API *)(const char*);
+
+    static void SetMode(Mode mode) { mode_ = mode; }
+    static void Initialize();
+    static void Finalize();
+    static void SetLogFunc(DebugLogFuncPtr func) { logFunc_ = func; }
+    static void SetErrorFunc(DebugLogFuncPtr func) { errFunc_ = func; }
+
+private:
+    enum class Level
+    {
+        Log,
+        Error
+    };
+
+    template <class T>
+    static void Output(T&& arg)
+    {
+        if (mode_ == Mode::None) return;
+        if (ss_.good())
+        {
+            ss_ << std::forward<T>(arg);
+        }
+    }
+
+    static void Flush(Level level)
+    {
+        switch (mode_)
+        {
+            case Mode::None:
+            {
+                return;
+            }
+            case Mode::File:
+            {
+                if (fs_.good() && ss_.good())
+                {
+                    const auto str = ss_.str();
+                    fs_ << str << std::endl;
+                    fs_.flush();
+                }
+                break;
+            }
+            case Mode::UnityLog:
+            {
+                if (ss_.good())
+                {
+                    switch (level)
+                    {
+                        case Level::Log   : 
+                            if (logFunc_) logFunc_(ss_.str().c_str()); 
+                            break;
+                        case Level::Error : 
+                            if (errFunc_) errFunc_(ss_.str().c_str()); 
+                            break;
+                    }
+                }
+                break;
+            }
+        }
+        ss_.str("");
+        ss_.clear(std::stringstream::goodbit);
+    }
+
+    template <class Arg, class... RestArgs>
+    static void _Log(Level level, Arg&& arg, RestArgs&&... restArgs)
+    {
+        Output(std::forward<Arg>(arg));
+        _Log(level, std::forward<RestArgs>(restArgs)...);
+    }
+
+    static void _Log(Level level)
+    {
+        Flush(level);
+    }
+
+    static void OutputTime()
+    {
+        auto t = time(nullptr);
+        tm tm;
+        localtime_s(&tm, &t);
+        char buf[64];
+        strftime(buf, 64, "%F %T", &tm);
+        Output("[");;
+        Output(buf);
+        Output("]");
+    }
+
+public:
+    template <class Arg, class... RestArgs>
+    static void Log(Arg&& arg, RestArgs&&... restArgs)
+    {
+        std::lock_guard<std::mutex> lock(mutex_);
+        Output("[uDD::Log]");
+        OutputTime();
+        Output(" ");
+        _Log(Level::Log, std::forward<Arg>(arg), std::forward<RestArgs>(restArgs)...);
+    }
+
+    template <class Arg, class... RestArgs>
+    static void Error(Arg&& arg, RestArgs&&... restArgs)
+    {
+        std::lock_guard<std::mutex> lock(mutex_);
+        Output("[uDD::Err]");
+        OutputTime();
+        Output(" ");
+        _Log(Level::Error, std::forward<Arg>(arg), std::forward<RestArgs>(restArgs)...);
+    }
+
+private:
+    static bool isInitialized_;
+    static Mode mode_;
+    static std::ofstream fs_;
+    static std::ostringstream ss_;
+    static DebugLogFuncPtr logFunc_;
+    static DebugLogFuncPtr errFunc_;
+    static std::mutex mutex_;
+};
+
+
+#ifdef UDD_DEBUG_ON
+#define UDD_FUNCTION_SCOPE_TIMER \
+    ScopedTimer _timer_##__COUNTER__([](std::chrono::microseconds us) \
+    { \
+        Debug::Log(__FUNCTION__, "@", __FILE__, ":", __LINE__, " => ", us.count(), " [us]"); \
+    });
+#define UDD_SCOPE_TIMER(Name) \
+    ScopedTimer _timer_##__COUNTER__([](std::chrono::microseconds us) \
+    { \
+        Debug::Log(#Name, " => ", us.count(), " [us]"); \
+    });
+#else
+#define UDD_FUNCTION_SCOPE_TIMER
+#define UDD_SCOPE_TIMER(Name)
+#endif

Plugins/uDesktopDuplication/uDesktopDuplication/Device.cpp

@@ -0,0 +1,97 @@
+#pragma once
+
+#include <queue>
+#include <d3d11.h>
+
+#include "IUnityInterface.h"
+#include "IUnityGraphicsD3D11.h"
+#include "Device.h"
+#include "Debug.h"
+#include "Common.h"
+
+#pragma comment(lib, "d3d11.lib")
+
+using namespace Microsoft::WRL;
+
+
+
+IsolatedD3D11Device::IsolatedD3D11Device()
+{
+}
+
+
+IsolatedD3D11Device::~IsolatedD3D11Device()
+{
+}
+
+
+HRESULT IsolatedD3D11Device::Create(const ComPtr<IDXGIAdapter>& adapter)
+{
+    const auto driverType = adapter ? 
+        D3D_DRIVER_TYPE_UNKNOWN : 
+        D3D_DRIVER_TYPE_HARDWARE;
+    const auto flags =
+        D3D11_CREATE_DEVICE_BGRA_SUPPORT;       // D2D Compatible
+        // | D3D11_CREATE_DEVICE_VIDEO_SUPPORT  // MediaFoundation
+    const D3D_FEATURE_LEVEL featureLevelsRequested[] = 
+    {
+        D3D_FEATURE_LEVEL_11_0, 
+        D3D_FEATURE_LEVEL_10_1,
+        D3D_FEATURE_LEVEL_10_0, 
+        D3D_FEATURE_LEVEL_9_3,
+        D3D_FEATURE_LEVEL_9_2, 
+        D3D_FEATURE_LEVEL_9_1 
+    };
+    const UINT numLevelsRequested = sizeof(featureLevelsRequested) / sizeof(D3D_FEATURE_LEVEL);
+    D3D_FEATURE_LEVEL featureLevelsSupported;
+
+    return D3D11CreateDevice(
+        adapter.Get(),
+        driverType,
+        nullptr,
+        flags,
+        featureLevelsRequested,
+        numLevelsRequested,
+        D3D11_SDK_VERSION,
+        &device_,
+        &featureLevelsSupported,
+        nullptr);
+}
+
+
+ComPtr<ID3D11Device> IsolatedD3D11Device::GetDevice()
+{ 
+    return device_;
+}
+
+
+Microsoft::WRL::ComPtr<ID3D11Texture2D> IsolatedD3D11Device::GetCompatibleSharedTexture(
+    const ComPtr<ID3D11Texture2D>& src)
+{
+    D3D11_TEXTURE2D_DESC srcDesc;
+    src->GetDesc(&srcDesc);
+
+    // check if the format and size of the current texture are same as the source one
+    if (cachedSharedTexture_) 
+    {
+        D3D11_TEXTURE2D_DESC targetDesc;
+        cachedSharedTexture_->GetDesc(&targetDesc);
+        if (targetDesc.Format == srcDesc.Format && 
+            targetDesc.Width  == srcDesc.Width  && 
+            targetDesc.Height == srcDesc.Height)
+        {
+            return cachedSharedTexture_;
+        }
+    }
+
+    // for sharing this texture with unity device
+    srcDesc.MiscFlags = D3D11_RESOURCE_MISC_SHARED;
+
+    if (FAILED(device_->CreateTexture2D(&srcDesc, nullptr, &cachedSharedTexture_)))
+    {
+        Debug::Error("IsolatedD3D11Device::GetCompatibleSharedTexture() => Creating shared texture failed.");
+        return nullptr;
+    }
+
+    return cachedSharedTexture_;
+}

Plugins/uDesktopDuplication/uDesktopDuplication/Device.h

@@ -0,0 +1,25 @@
+#pragma once
+
+#include <atomic>
+#include <vector>
+#include <memory>
+#include <d3d11.h>
+#include <wrl/client.h>
+
+
+// Thraed safe self created ID3D11Device from specified adapter
+class IsolatedD3D11Device
+{
+public:
+    IsolatedD3D11Device();
+    ~IsolatedD3D11Device();
+
+    HRESULT Create(const Microsoft::WRL::ComPtr<IDXGIAdapter>& adapter);
+    Microsoft::WRL::ComPtr<ID3D11Device> GetDevice();
+    Microsoft::WRL::ComPtr<ID3D11Texture2D> GetCompatibleSharedTexture(
+        const Microsoft::WRL::ComPtr<ID3D11Texture2D>& src);
+
+private:
+    Microsoft::WRL::ComPtr<ID3D11Device> device_;
+    Microsoft::WRL::ComPtr<ID3D11Texture2D> cachedSharedTexture_;
+};

Plugins/uDesktopDuplication/uDesktopDuplication/Duplicator.cpp

@@ -0,0 +1,468 @@
+#pragma once
+
+#include <chrono>
+
+#include "Duplicator.h"
+#include "Monitor.h"
+#include "MonitorManager.h"
+#include "Cursor.h"
+#include "Device.h"
+#include "Debug.h"
+
+#include "IUnityInterface.h"
+#include "IUnityGraphicsD3D11.h"
+
+using namespace Microsoft::WRL;
+
+
+
+Duplicator::Duplicator(Monitor* monitor)
+    : monitor_(monitor)
+{
+    InitializeDevice();
+    InitializeDuplication();
+    CheckUnityAdapter();
+}
+
+
+Duplicator::~Duplicator()
+{
+    Stop();
+}
+
+
+void Duplicator::InitializeDevice()
+{
+    device_ = std::make_shared<IsolatedD3D11Device>();
+
+    if (FAILED(device_->Create(monitor_->GetAdapter())))
+    {
+        Debug::Error("Monitor::Initialize() => IsolatedD3D11Device::Create() failed.");
+        state_ = State::Unknown;
+    }
+}
+
+
+void Duplicator::InitializeDuplication()
+{
+	ComPtr<IDXGIOutput1> output1;
+	if (FAILED(monitor_->GetOutput().As(&output1))) 
+    {
+		return;
+	}
+
+	auto hr = output1->DuplicateOutput(device_->GetDevice().Get(), &dupl_);
+	switch (hr)
+	{
+		case S_OK:
+		{
+			state_ = State::Ready;
+			const auto rot = static_cast<DXGI_MODE_ROTATION>(monitor_->GetRotation());
+			Debug::Log("Duplicator::Initialize() => OK.");
+			Debug::Log("    ID    : ", monitor_->GetId());
+			Debug::Log("    Size  : (", monitor_->GetWidth(), ", ", monitor_->GetHeight(), ")");
+			Debug::Log("    DPI   : (", monitor_->GetDpiX(), ", ", monitor_->GetDpiY(), ")");
+			Debug::Log("    Rot   : ",
+				rot == DXGI_MODE_ROTATION_IDENTITY ? "Landscape" :
+				rot == DXGI_MODE_ROTATION_ROTATE90 ? "Portrait" :
+				rot == DXGI_MODE_ROTATION_ROTATE180 ? "Landscape (flipped)" :
+				rot == DXGI_MODE_ROTATION_ROTATE270 ? "Portrait (flipped)" :
+				"Unspecified");
+			break;
+		}
+		case E_INVALIDARG:
+		{
+			state_ = State::InvalidArg;
+			Debug::Error("Duplicator::Initialize() => Invalid arguments.");
+			break;
+		}
+		case E_ACCESSDENIED:
+		{
+			// For example, when the user presses Ctrl + Alt + Delete and the screen
+			// switches to admin screen, this error occurs. 
+			state_ = State::AccessDenied;
+			Debug::Error("Duplicator::Initialize() => Access denied.");
+			break;
+		}
+		case DXGI_ERROR_UNSUPPORTED:
+		{
+			// If the display adapter on the computer is running under the Microsoft Hybrid system,
+			// this error occurs.
+			state_ = State::Unsupported;
+			Debug::Error("Duplicator::Initialize() => Unsupported display.");
+			break;
+		}
+		case DXGI_ERROR_NOT_CURRENTLY_AVAILABLE:
+		{
+			// When other application use Desktop Duplication API, this error occurs.
+			state_ = State::CurrentlyNotAvailable;
+			Debug::Error("Duplicator::Initialize() => Currently not available.");
+			break;
+		}
+		case DXGI_ERROR_SESSION_DISCONNECTED:
+		{
+			state_ = State::SessionDisconnected;
+			Debug::Error("Duplicator::Initialize() => Session disconnected.");
+			break;
+		}
+		default:
+		{
+			state_ = State::Unknown;
+			Debug::Error("Duplicator::Render() => Unknown Error.");
+			break;
+		}
+	}
+}
+
+
+void Duplicator::CheckUnityAdapter()
+{
+    DXGI_ADAPTER_DESC desc;
+    monitor_->GetAdapter()->GetDesc(&desc);
+
+    const auto unityAdapterLuid = GetUnityAdapterLuid();
+    const auto isUnityAdapter =
+        (desc.AdapterLuid.LowPart  == unityAdapterLuid.LowPart) &&
+        (desc.AdapterLuid.HighPart == unityAdapterLuid.HighPart);
+
+    if (!isUnityAdapter)
+    {
+        Debug::Error("Duplicator::CheckUnityAdapter() => The adapter is not same as Unity, and now this case is not supported.");
+        state_ = State::Unsupported;
+    }
+}
+
+
+void Duplicator::Start()
+{
+    if (state_ != State::Ready) return;
+
+    Stop();
+
+    thread_ = std::thread([this] 
+    {
+        using namespace std::chrono;
+
+        state_ = State::Running;
+
+        shouldRun_ = true;
+        while (shouldRun_)
+        {
+            const auto frameRate = GetMonitorManager()->GetFrameRate();
+            const UINT frameMicroSeconds = 1000000 / frameRate;
+            const UINT frameMilliSeconds = 1000 / frameRate;
+
+            ScopedTimer timer([frameMicroSeconds] (microseconds us)
+            {
+                const auto waitTime = microseconds(frameMicroSeconds) - us;
+                if (waitTime > microseconds::zero())
+                {
+                    std::this_thread::sleep_for(waitTime);
+                }
+            });
+
+            const auto timeout = static_cast<UINT>(frameMilliSeconds);
+            Duplicate(timeout);
+
+            if (state_ != State::Running)
+            {
+                break;
+            }
+        }
+
+        if (state_ == State::Running)
+        {
+            state_ = State::Ready;
+        }
+    });
+}
+
+
+void Duplicator::Stop()
+{
+    shouldRun_ = false;
+
+    if (thread_.joinable())
+    {
+        thread_.join();
+    }
+}
+
+
+bool Duplicator::IsRunning() const
+{
+    return state_ == State::Running;
+}
+
+
+bool Duplicator::IsError() const
+{
+    return
+        state_ != State::Ready &&
+        state_ != State::Running;
+}
+
+
+Duplicator::State Duplicator::GetState() const
+{
+    return state_;
+}
+
+
+Monitor* Duplicator::GetMonitor() const
+{
+    return monitor_;
+}
+
+
+Microsoft::WRL::ComPtr<ID3D11Device> Duplicator::GetDevice()
+{
+    return device_->GetDevice();
+}
+
+
+ComPtr<IDXGIOutputDuplication> Duplicator::GetDuplication()
+{
+    return dupl_;
+}
+
+
+const Duplicator::Frame& Duplicator::GetLastFrame() const
+{
+    std::lock_guard<std::mutex> lock(mutex_);
+    return lastFrame_;
+}
+
+
+void Duplicator::Duplicate(UINT timeout)
+{
+    if (!dupl_ || !device_) return;
+
+    Release();
+
+    ComPtr<IDXGIResource> resource;
+    DXGI_OUTDUPL_FRAME_INFO frameInfo;
+    const auto hr = dupl_->AcquireNextFrame(timeout, &frameInfo, &resource);
+
+    if (FAILED(hr)) 
+    {
+        switch (hr)
+        {
+            case DXGI_ERROR_ACCESS_LOST:
+            {
+                // If any monitor setting has changed (e.g. monitor size has changed),
+                // it is necessary to re-initialize monitors.
+                Debug::Log("Duplicator::Duplicate() => DXGI_ERROR_ACCESS_LOST.");
+                state_ = State::AccessLost;
+                break;
+            }
+            case DXGI_ERROR_WAIT_TIMEOUT:
+            {
+                // This often occurs when timeout value is small and it is not problem. 
+                // Debug::Log("Duplicator::Duplicate() => DXGI_ERROR_WAIT_TIMEOUT.");
+                break;
+            }
+            case DXGI_ERROR_INVALID_CALL:
+            {
+                Debug::Error("Duplicator::Duplicate() => DXGI_ERROR_INVALID_CALL.");
+                break;
+            }
+            case E_INVALIDARG:
+            {
+                Debug::Error("Duplicator::Duplicate() => E_INVALIDARG.");
+                break;
+            }
+            default:
+            {
+                state_ = State::Unknown;
+                Debug::Error("Duplicator::Duplicate() => Unknown Error.");
+                break;
+            }
+        }
+        return;
+    }
+
+    isFrameAcquired_ = true;
+
+    ComPtr<ID3D11Texture2D> texture;
+    if (FAILED(resource.As(&texture))) 
+    {
+        Debug::Error("Duplicator::Duplicate() => IDXGIResource could not be converted to ID3D11Texture2D.");
+        return;
+    }
+
+    auto sharedTexture = device_->GetCompatibleSharedTexture(texture);
+    if (!sharedTexture)
+    {
+        Debug::Error("Duplicator::Duplicate() => Shared texture is null.");
+        return;
+    }
+
+    {
+        ComPtr<ID3D11DeviceContext> context;
+        device_->GetDevice()->GetImmediateContext(&context);
+        context->CopyResource(sharedTexture.Get(), texture.Get());
+    }
+
+    UpdateCursor(sharedTexture, frameInfo);
+    UpdateMetadata(frameInfo.TotalMetadataBufferSize);
+
+    {
+        std::lock_guard<std::mutex> lock(mutex_);
+        lastFrame_ = Frame
+        {
+            lastFrameId_++,
+            sharedTexture,
+            frameInfo,
+            metaData_
+        };
+    }
+}
+
+
+void Duplicator::Release()
+{
+    if (!isFrameAcquired_) return;
+
+    const auto hr = dupl_->ReleaseFrame();
+    if (FAILED(hr))
+    {
+        switch (hr)
+        {
+            case DXGI_ERROR_ACCESS_LOST:
+            {
+                Debug::Log("Duplicator::Duplicate() => DXGI_ERROR_ACCESS_LOST.");
+                state_ = State::AccessLost;
+                break;
+            }
+            case DXGI_ERROR_INVALID_CALL:
+            {
+                Debug::Error("Duplicator::Duplicate() => DXGI_ERROR_INVALID_CALL.");
+                break;
+            }
+            default:
+            {
+                state_ = State::Unknown;
+                Debug::Error("Duplicator::Duplicate() => Unknown Error.");
+                break;
+            }
+        }
+    }
+
+    isFrameAcquired_ = false;
+}
+
+
+void Duplicator::UpdateCursor(
+    const ComPtr<ID3D11Texture2D>& texture,
+    const DXGI_OUTDUPL_FRAME_INFO& frameInfo)
+{
+    auto& manager = GetMonitorManager();
+
+	if (frameInfo.PointerPosition.Visible)
+	{
+        manager->SetCursorMonitorId(monitor_->GetId());
+	}
+
+    if (monitor_->GetId() == manager->GetCursorMonitorId())
+    {
+        auto cursor = manager->GetCursor();
+        cursor->UpdateBuffer(this, frameInfo);
+        cursor->UpdateTexture(this, texture);
+    }
+}
+
+
+void Duplicator::UpdateMetadata(UINT totalBufferSize)
+{
+    metaData_.buffer.ExpandIfNeeded(totalBufferSize);
+    if (!metaData_.buffer.Empty())
+    {
+        UpdateMoveRects();
+        UpdateDirtyRects();
+    }
+}
+
+
+void Duplicator::UpdateMoveRects()
+{
+    const auto hr = dupl_->GetFrameMoveRects(
+        metaData_.buffer.Size(),
+        metaData_.buffer.As<DXGI_OUTDUPL_MOVE_RECT>(), 
+        &metaData_.moveRectSize);
+
+    if (FAILED(hr))
+    {
+        switch (hr)
+        {
+            case DXGI_ERROR_ACCESS_LOST:
+            {
+                Debug::Log("Duplicator::UpdateMoveRects() => DXGI_ERROR_ACCESS_LOST.");
+                break;
+            }
+            case DXGI_ERROR_MORE_DATA:
+            {
+                Debug::Error("Duplicator::UpdateMoveRects() => DXGI_ERROR_MORE_DATA.");
+                break;
+            }
+            case DXGI_ERROR_INVALID_CALL:
+            {
+                Debug::Error("Duplicator::UpdateMoveRects() => DXGI_ERROR_INVALID_CALL.");
+                break;
+            }
+            case E_INVALIDARG:
+            {
+                Debug::Error("Duplicator::UpdateMoveRects() => E_INVALIDARG.");
+                break;
+            }
+            default:
+            {
+                Debug::Error("Duplicator::UpdateMoveRects() => Unknown Error.");
+                break;
+            }
+        }
+        return;
+    }
+}
+
+
+void Duplicator::UpdateDirtyRects()
+{
+    const auto hr = dupl_->GetFrameDirtyRects(
+        metaData_.buffer.Size() - metaData_.moveRectSize,
+        metaData_.buffer.As<RECT>(metaData_.moveRectSize /* offset */), 
+        &metaData_.dirtyRectSize);
+
+    if (FAILED(hr))
+    {
+        switch (hr)
+        {
+            case DXGI_ERROR_ACCESS_LOST:
+            {
+                Debug::Log("Duplicator::UpdateDirtyRects() => DXGI_ERROR_ACCESS_LOST.");
+                break;
+            }
+            case DXGI_ERROR_MORE_DATA:
+            {
+                Debug::Error("Duplicator::UpdateDirtyRects() => DXGI_ERROR_MORE_DATA.");
+                break;
+            }
+            case DXGI_ERROR_INVALID_CALL:
+            {
+                Debug::Error("Duplicator::UpdateDirtyRects() => DXGI_ERROR_INVALID_CALL.");
+                break;
+            }
+            case E_INVALIDARG:
+            {
+                Debug::Error("Duplicator::UpdateDirtyRects() => E_INVALIDARG.");
+                break;
+            }
+            default:
+            {
+                Debug::Error("Duplicator::UpdateDirtyRects() => Unknown Error.");
+                break;
+            }
+        }
+        return;
+    }
+}