Re: [Qemu-devel] Re: [PATCH] VMware SVGA II emulation

[Thiemo Seufer <ths@networkno.de>]

andrzej zaborowski wrote:
> Hi,
>  I looked at how the embedding of a standard VGA in the VMware SVGA
> could be done (mainly out of curiosity) and it wasn't difficult. I had
> to make small changes in hw/vga.c but I think it's made more flexible
> now. Attached is a second version of the VMware SVGA patch. This time
> including the "Host-accelerated mouse cursor support in SDL" patch in
> the same file. I added a FIFO for buffering screen update requests so
> as to avoid touching the SDL buffer between scheduled updates, (which
> could lead to drawing over qemu monitor or even segfaults if the
> resolution was changed in meantime). I also found what was wrong with
> the accelerated rectangle filling and fixed a couple of other issues.
> The palette size was also wrong in the older patch - credits to
> Anthony Liguori who spotted it.
> 
> I have not tested switching between std VGA graphic modes and VMware
> SVGA mode, but the switching between VGA text mode and VMware SVGA
> mode worked fine (although the black console background was becoming
> not exactly black). Savevm/loadvm should also work, including the VGA
> part.
> In this version VMware SVGA is a standalone VGA so we're using only
> one qemu console, like with "-cirrusvga".

I left the sdl_copy bit out because it broke scrolling of a guest Linux
framebuffer in the moment it initialized its virtual consoles. Maybe
that's a bug in libsdl 1.2.


Thiemo