RE: [B2-devel] SheepShaver and SDL

[Tomasz J. <to...@je...>]

> -----Original Message-----
> From: bas...@li... 
> [mailto:bas...@li...] On Behalf 
> Of Gwenole Beauchesne
> Sent: Friday, June 04, 2004 4:15 PM
> To: bas...@li...
> Subject: Re: [B2-devel] SheepShaver and SDL
> 
> Hi,
> 
> > Just a wild thought... Wouldn't be useful if SheepShaver were using 
> > SDL as graphics subsystem? Recently PearPC guys employed 
> that library 
> > in their project and users were pretty happy with it 
> (performance wise).
> 
> Performance wise, our graphics subsystem is performing quite 
> well already [*]. Though plain x86 could benefit from 
> SDL/Hermes/x86 blitters. In my opinion, at 30 Hz, it doesn't 
> seem that slow.
> 
> [*] If it seems slow to you, can you make sure you are 
> running local so that Xshm can be used too? Besides, could 
> you try a build configured with --disable-vosf. If this 
> causes faster graphics on Linux/x86 (at the same frameskip 
> level), then there is a problem.
> 

I was bored yesterday and made a little comparison between BasiliskII/Win
(no JIT version, MacOS 8.1, 68x) and SheepShaver (MacOS 8.6). The benchmark
was Speedometer 4.0. Even though SheepShaver results were noticeably higher
in most tests, including QuickDraw ones, SheepShaver's graphics feels a lot
slower than Basilisk's - repainting of Finder windows is visible, menus
don't appear instantly and stuff like this. The difference increased when I
installed Kaleidoscope theming applet and Aqua-like themes on both systems.
That's why I've drawn a conclusion that there might be something wrong with
SheepShaver graphics performance.

I'm aware that my benchmark is not very good (different host OS's, different
architectures emulated, different OS's emulated).

Jerzu