Fix black rectangles because of data synchronization problem (issue #54)

Source/Blu/Private/RenderHandler.cpp

@@ -5,6 +5,13 @@ RenderHandler::RenderHandler(int32 width, int32 height, UBluEye* ui)
 	this->Width = width;
 	this->Height = height;
 	this->parentUI = ui;
+	this->BackBufferSizeCached = width * height * 4;
+	this->BackBuffer = new uint8[this->BackBufferSizeCached];
+}
+
+RenderHandler::~RenderHandler()
+{
+	delete this->BackBuffer;
 }
 
 bool RenderHandler::GetViewRect(CefRefPtr<CefBrowser> browser, CefRect &rect)
@@ -28,8 +35,10 @@ void RenderHandler::OnPaint(CefRefPtr<CefBrowser> browser, PaintElementType type
 		current++;
 	}
 
+	memcpy(BackBuffer, buffer, BackBufferSizeCached);
+
 	// Trigger our parent UIs Texture to update
-	parentUI->TextureUpdate(buffer, updateRegions, dirtyRects.size());
+	parentUI->TextureUpdate(BackBuffer, updateRegions, dirtyRects.size());
 }
 
 bool BrowserClient::OnProcessMessageReceived(CefRefPtr<CefBrowser> browser, CefProcessId source_process, CefRefPtr<CefProcessMessage> message)

Source/Blu/Public/RenderHandler.h

@@ -16,7 +16,9 @@ class RenderHandler : public CefRenderHandler
 {
 	private:
 		UBluEye* parentUI;
-
+		uint8* BackBuffer;
+		uint32 BackBufferSizeCached;
+
 	public:
 
 		int32 Width;
@@ -28,6 +30,7 @@ class RenderHandler : public CefRenderHandler
 		void OnPaint(CefRefPtr<CefBrowser> browser, PaintElementType type, const RectList &dirtyRects, const void *buffer, int width, int height) override;
 
 		RenderHandler(int32 width, int32 height, UBluEye* ui);
+		~RenderHandler();
 
 		// CefBase interface
 		// NOTE: Must be at bottom