Re: [Qemu-devel] [PATCH] Add QEMU DirectFB display driver

[Julian Pidancet <julian.pidancet@citrix.com>]

On 05/17/2010 02:30 PM, Anthony Liguori wrote:
> On 05/15/2010 08:10 PM, Paul Brook wrote:
>>> The other solution would be to use the DirectFB driver for SDL which
>>> would allow to do slightly the same as this patch. But that would mean
>>> having to deal with an additional layer in the graphical stack, which is
>>> not exactly what one wants from a performance or a complexity point of
>>> view.
>>>      
>> I don't buy your complexity argument.  Doesn't DirectFB-via-SDL already work?
>> If not why not? I'm pretty sure fixing that would be way simpler than adding a
>> whole new output backend.
>>    
> 
> Yeah, I don't buy it either.  I think performance data is probably the 
> only way to justify this and I'm sceptical that if there is a 
> performance advantage that it wouldn't be possible to just fix SDL's 
> DirectFB support.
> 

I don't think wether fixing or not SDL is the debate here, the question would be more wether or not we want to add a lightweight display driver to qemu. Also, I think a DirectFB driver is fairly easy to maintain.

I will get some performance data as soon as I have some time.

By the way, sorry for the patch reposts, it seems that my smtp server had quite some trouble to relay messages last week.

-- 
Julian