fix freeze bug.

Author: hecomi

Assets/uWindowCapture/Examples/Desktop Layout/Desktop Layout.unity

@@ -5,7 +5,7 @@
 #include <chrono>
 #include <Windows.h>
 
-#define UWC_DEBUG_ON
+// #define UWC_DEBUG_ON
 
 
 // Window utilities

Assets/uWindowCapture/Plugins/x86/uWindowCapture.dll

@@ -145,6 +145,8 @@ void WindowsGraphicsCapture::CreatePoolAndSession()
 
 void WindowsGraphicsCapture::DestroySession()
 {
+    std::scoped_lock lock(sessionAndPoolMutex_);
+
     if (graphicsCaptureSession_)
     {
         graphicsCaptureSession_.Close();
@@ -175,6 +177,8 @@ void WindowsGraphicsCapture::Start()
         manager->Add(shared_from_this());
     }
 
+    std::scoped_lock lock(sessionAndPoolMutex_);
+
     CreatePoolAndSession();
 
     if (graphicsCaptureSession_)
@@ -240,6 +244,8 @@ void WindowsGraphicsCapture::EnableCursorCapture(bool enabled)
         return;
     }
 
+    std::scoped_lock lock(sessionAndPoolMutex_);
+
     if (graphicsCaptureSession_) 
     {
         graphicsCaptureSession_.IsCursorCaptureEnabled(enabled);
@@ -253,6 +259,8 @@ WindowsGraphicsCapture::Result WindowsGraphicsCapture::TryGetLatestResult()
 
     stopTimer_ = 0.f;
 
+    std::scoped_lock lock(sessionAndPoolMutex_);
+
     if (!captureFramePool_) return {};
 
     Direct3D11CaptureFrame frame = nullptr;
@@ -281,6 +289,8 @@ WindowsGraphicsCapture::Result WindowsGraphicsCapture::TryGetLatestResult()
 
 void WindowsGraphicsCapture::ChangePoolSize(int width, int height)
 {
+    std::scoped_lock lock(sessionAndPoolMutex_);
+
     if (!captureFramePool_) return;
 
     const auto& manager = WindowManager::Get().GetWindowsGraphicsCaptureManager();

Assets/uWindowCapture/Plugins/x86_64/uWindowCapture.dll

@@ -60,6 +60,7 @@ class WindowsGraphicsCapture
     winrt::Windows::Graphics::SizeInt32 size_ = { 0, 0 };
     Callback callback_;
     bool isStarted_ = false;
+    std::mutex sessionAndPoolMutex_;
 
     float stopTimer_ = 0.f;
     bool hasStopRequested_ = false;