Bulk Operation

JDK-8228573 Remove nextDrawableCount and lock RQ only during the blit operation

JDK-8228573 Use multi commandbuffer and draw back buffer in QueueFlusher

JDK-8228573 Lock renderqueue for least amount of time by making CAMetalLayer asynchronous

JDK-8228573 Use CAMetalDrawable texture as back buffer

JDK-8228573 Remove RenderQueue lock while blitting content to front buffer

JDK-8228573 Verify usage of CHECK_PREVIOUS_OP and how it affects performance

JDK-8228573 Refactor code to remove repetative logic in MTLLayer

JDK-8228573 Remove CALayerDelegate usage for metal

JDK-8228573 Check how Toolkit.Sync() is affecting J2DBench numbers

JDK-8228573 Use single render encoder per destination for metal

JDK-8228573 Use setNeedsDisplay to start blitting in Appkit thread in Metal

JDK-8228573 Lock the RenderQueue in main thread before we start Blitting