- empty screenshot array is returned by base framebuffer

src/v_video.h:556:94: warning: control reaches end of non-void function [-Wreturn-type]

src/v_video.h

@@ -553,7 +553,7 @@ public:
 	// Retrieves a buffer containing image data for a screenshot.
 	// Hint: Pitch can be negative for upside-down images, in which case buffer
 	// points to the last row in the buffer, which will be the first row output.
-	virtual TArray<uint8_t> GetScreenshotBuffer(int &pitch, ESSType &color_type, float &gamma) {}
+	virtual TArray<uint8_t> GetScreenshotBuffer(int &pitch, ESSType &color_type, float &gamma) { return TArray<uint8_t>(); }
 
 	static float GetZNear() { return 5.f; }
 	static float GetZFar() { return 65536.f; }