use shared texture.

Assets/uDesktopDuplication/Scripts/Lib.cs

@@ -163,6 +163,8 @@ public static class Lib
     [DllImport("uDesktopDuplication")]
     public static extern int SetTexturePtr(int id, IntPtr ptr);
     [DllImport("uDesktopDuplication")]
+    public static extern IntPtr GetSharedTextureHandle(int id);
+    [DllImport("uDesktopDuplication")]
     public static extern int GetMoveRectCount(int id);
     [DllImport("uDesktopDuplication", EntryPoint = "GetMoveRects")]
     private static extern IntPtr GetMoveRects_Internal(int id);

Plugins/uDesktopDuplication/uDesktopDuplication/Common.cpp

@@ -46,7 +46,7 @@ IUnityInterfaces* GetUnity()
 }
 
 
-ComPtr<ID3D11Device> GetDevice()
+ComPtr<ID3D11Device> GetUnityDevice()
 {
     return GetUnity()->Get<IUnityGraphicsD3D11>()->GetDevice();
 }
@@ -62,7 +62,7 @@ LUID GetUnityAdapterLuid()
 {
     UDD_FUNCTION_SCOPE_TIMER
 
-    const auto device = GetDevice();
+    const auto device = GetUnityDevice();
 
     Microsoft::WRL::ComPtr<IDXGIDevice1> dxgiDevice;
     if (FAILED(device->QueryInterface(IID_PPV_ARGS(&dxgiDevice)))){

Plugins/uDesktopDuplication/uDesktopDuplication/Common.h

@@ -16,7 +16,7 @@ IUnityInterfaces* GetUnity();
 
 // ID3D11Device (in Unity) getter
 struct ID3D11Device;
-Microsoft::WRL::ComPtr<ID3D11Device> GetDevice();
+Microsoft::WRL::ComPtr<ID3D11Device> GetUnityDevice();
 
 // Manager getter
 class MonitorManager;

Plugins/uDesktopDuplication/uDesktopDuplication/Cursor.cpp

@@ -383,7 +383,7 @@ void Cursor::Draw(const Microsoft::WRL::ComPtr<ID3D11Texture2D>& texture)
 
     const auto capturedImageWidth = capturedImageArea_.right - capturedImageArea_.left;
     ComPtr<ID3D11DeviceContext> context;
-    GetDevice()->GetImmediateContext(&context);
+    GetUnityDevice()->GetImmediateContext(&context);
     context->UpdateSubresource(texture.Get(), 0, &capturedImageArea_, bgraBuffer_.Get(), capturedImageWidth * 4, 0);
 }
 
@@ -418,7 +418,7 @@ void Cursor::GetTexture(ID3D11Texture2D* texture)
     }
 
     ComPtr<ID3D11DeviceContext> context;
-    GetDevice()->GetImmediateContext(&context);
+    GetUnityDevice()->GetImmediateContext(&context);
     context->UpdateSubresource(texture, 0, nullptr, bgraBuffer_.Get(), GetWidth() * 4, 0);
 }
 

Plugins/uDesktopDuplication/uDesktopDuplication/Duplicator.cpp

@@ -306,6 +306,16 @@ void Duplicator::Duplicate(UINT timeout)
         context->CopyResource(sharedTexture.Get(), texture.Get());
     }
 
+
+    HANDLE sharedHandle;
+    ComPtr<IDXGIResource> dxgiResource;
+    sharedTexture.As(&dxgiResource);
+    if (FAILED(dxgiResource->GetSharedHandle(&sharedHandle)))
+    {
+        Debug::Error("Duplicator::Duplicate() => Failed to get shared handle.");
+        return;
+    }
+
     UpdateCursor(sharedTexture, frameInfo);
     UpdateMetadata(frameInfo.TotalMetadataBufferSize);
 
@@ -315,6 +325,7 @@ void Duplicator::Duplicate(UINT timeout)
         {
             lastFrameId_++,
             sharedTexture,
+            sharedHandle,
             frameInfo,
             metaData_
         };

Plugins/uDesktopDuplication/uDesktopDuplication/Duplicator.h

@@ -44,8 +44,9 @@ public:
 
     struct Frame
     {
-        UINT id;
-        Microsoft::WRL::ComPtr<ID3D11Texture2D> texture;
+        UINT id = 0;
+        Microsoft::WRL::ComPtr<ID3D11Texture2D> texture = nullptr;
+        HANDLE textureHandle = nullptr;
         DXGI_OUTDUPL_FRAME_INFO info;
         Metadata metaData;
     };

Plugins/uDesktopDuplication/uDesktopDuplication/Monitor.cpp

@@ -117,9 +117,19 @@ void Monitor::Render()
     }
     else
     {
+        ComPtr<ID3D11Texture2D> desktopTexture;
+        if (FAILED(GetUnityDevice()->OpenSharedResource(
+            frame.textureHandle,
+            __uuidof(ID3D11Texture2D),
+            &desktopTexture)))
+        {
+            Debug::Error("Monitor::Render() => Failed to open shared resource.");
+            return;
+        }
+
         ComPtr<ID3D11DeviceContext> context;
-        GetDevice()->GetImmediateContext(&context);
-        context->CopyResource(unityTexture_, frame.texture.Get());
+        GetUnityDevice()->GetImmediateContext(&context);
+        context->CopyResource(unityTexture_, desktopTexture.Get());
 
         auto& manager = GetMonitorManager();
         if (id_ == manager->GetCursorMonitorId())
@@ -198,6 +208,15 @@ ID3D11Texture2D* Monitor::GetUnityTexture() const
 }
 
 
+HANDLE Monitor::GetSharedTextureHandle() const
+{
+    UDD_FUNCTION_SCOPE_TIMER
+
+    const auto& frame = duplicator_->GetLastFrame();
+    return frame.textureHandle;
+}
+
+
 ComPtr<IDXGIOutputDuplication> Monitor::GetDeskDupl() 
 { 
     return duplicator_->GetDuplication(); 
@@ -344,7 +363,7 @@ void Monitor::CopyTextureFromGpuToCpu(ID3D11Texture2D* texture)
         desc.CPUAccessFlags     = D3D11_CPU_ACCESS_READ;
         desc.MiscFlags          = 0;
 
-        if (FAILED(GetDevice()->CreateTexture2D(&desc, nullptr, &textureForGetPixels_)))
+        if (FAILED(GetUnityDevice()->CreateTexture2D(&desc, nullptr, &textureForGetPixels_)))
         {
             Debug::Error("Monitor::CopyTextureFromGpuToCpu() => GetDevice()->CreateTexture2D() failed.");
             return;
@@ -353,7 +372,7 @@ void Monitor::CopyTextureFromGpuToCpu(ID3D11Texture2D* texture)
 
     {
         ComPtr<ID3D11DeviceContext> context;
-        GetDevice()->GetImmediateContext(&context);
+        GetUnityDevice()->GetImmediateContext(&context);
         context->CopyResource(textureForGetPixels_.Get(), texture);
     }
 

Plugins/uDesktopDuplication/uDesktopDuplication/Monitor.h

@@ -33,6 +33,7 @@ public:
     DuplicatorState GetDuplicatorState() const;
     void SetUnityTexture(ID3D11Texture2D* texture);
     ID3D11Texture2D* GetUnityTexture() const;
+    HANDLE GetSharedTextureHandle() const;
     void GetName(char* buf, int len) const;
     bool IsPrimary() const;
     bool HasBeenUpdated() const;

Plugins/uDesktopDuplication/uDesktopDuplication/main.cpp

@@ -368,6 +368,16 @@ extern "C"
         }
     }
 
+    UNITY_INTERFACE_EXPORT void* UNITY_INTERFACE_API GetSharedTextureHandle(int id)
+    {
+        if (!g_manager) return nullptr;
+        if (auto monitor = g_manager->GetMonitor(id))
+        {
+            return monitor->GetSharedTextureHandle();
+        }
+        return nullptr;
+    }
+
     UNITY_INTERFACE_EXPORT int UNITY_INTERFACE_API GetMoveRectCount(int id)
     {
         if (!g_manager) return -1;

Plugins/uDesktopDuplication/uDesktopDuplication/uDesktopDuplication.vcxproj

@@ -21,33 +21,33 @@
   <PropertyGroup Label="Globals">
     <ProjectGuid>{BC5DE2F9-BDCC-4449-A017-E5642E04BB56}</ProjectGuid>
     <RootNamespace>uDesktopDuplication</RootNamespace>
-    <WindowsTargetPlatformVersion>10.0.16299.0</WindowsTargetPlatformVersion>
+    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
     <ProjectName>uDesktopDuplication</ProjectName>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>DynamicLibrary</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v142</PlatformToolset>
     <CharacterSet>MultiByte</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>DynamicLibrary</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v142</PlatformToolset>
     <CharacterSet>MultiByte</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>DynamicLibrary</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v142</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>MultiByte</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>DynamicLibrary</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v142</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>MultiByte</CharacterSet>
   </PropertyGroup>