[hatari-devel] User selectable threshold for window zooming

Thomas Huth huth at users.berlios.de
Sun Feb 21 17:40:32 CET 2010


On Sun, 21 Feb 2010 18:32:06 +0200
Eero Tamminen <eerot at users.berlios.de> wrote:

> Hi,
> 
> On Thursday 04 February 2010, Thomas Huth wrote:
> > Eero Tamminen <eerot at users.berlios.de> wrote:
> > > For screen to get more than doubled, the original width would
> > > need to be < 267 pixels and height < 184 pixels which at least
> > > I've never seen... And ST/STE resolutions are never zoomed more
> > > than double.
> >
> > You haven't seen a lot of Falcon demos yet, have you? ;-)
> > Try "Terrorize your soul" for example, it switches to 320x100 or so
> > a couple of times... that means nScreenZoomY has been set to 5 with
> > the old code, that's a lot more than simply doubling the
> > resolution...
> 
> "b ($FF82C2).w ! ($FF82C2).w :trace"  on this gives:
> 
> Startup situation:
>   $ff82c2 = $0
> 
> In the tunnel screen:
>   $ff82c2 = $1
> 
> And after this the demo on some screens toggles this bit.
> 
> This is the line doubling bit.  The screen size is 320x100 without
> Hatari zooming.  Shouldn't line doubling bit automatically double the
> *vertical* resolution like is done for the ST-med interlace?

Sounds good, but to be sure, you should maybe check this on a real
Falcon first...

 Thomas




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