Re: [Qemu-devel] [PATCH] Guest mouse cursor drawing in SDL

[Thiemo Seufer <ths@networkno.de>]

andrzej zaborowski wrote:
> This should allow the emulated video cards that support hardware
> accelerated cursors to relay the cursor drawing to host, possibly
> using real hardware cursor. This way the guest and host effectively
> share one cursor. Only SDL support is included. Not tested with mice
> that report absolute coordinates.
> 
> The cursor does not appear in the framebuffer seen by the guest, it's
> only drawn on the host. One funny effect is that it's not clipped to
> the size of the framebuffer and can stick out of the SDL window.
> 
> I think the sdl.c could use a small rewrite to have all cursor hiding
> and showing in one place instead of spread across the file.
> 
> VNC support would need employing an extension for this, according to
> Anthony Liguori. VMware made a documented VNC extension that does it.

> From 3cf77a8b3c80b0306a0e73677ac6faeb1f83e0a2 Mon Sep 17 00:00:00 2001
> From: Andrzej Zaborowski <balrog@zabor.org>
> Date: Sun, 11 Mar 2007 15:31:12 +0100
> Subject: [PATCH] Host-accelerated mouse cursor support in SDL.

This patch breaks scrolling in the cirrus vga framebuffer.


Thiemo