extcam camera preview

widgets/cameraview_vsdev.h

@@ -0,0 +1,32 @@
+#include "stdafx.h"
+#include "uilayer.h"
+#include "translation.h"
+#include "extras/VS_Dev.h"
+
+namespace ui
+{
+class cameraview_panel : public ui_panel
+{
+	std::atomic_bool exit_thread = true;
+	std::thread workthread;
+
+	uint8_t* image_ptr = nullptr;
+	int image_w, image_h;
+
+	std::mutex mutex;
+	std::condition_variable cv;
+
+	std::optional<opengl_texture> texture;
+
+	std::unique_ptr<VSDev> device;
+
+	void workthread_func();
+
+  public:
+	cameraview_panel();
+	~cameraview_panel();
+
+	void render() override;
+	void render_contents() override;
+};
+} // namespace ui