Re: Another pwc bug :-(

I decided to look at the driver source now. And I think I found the bug. If 
what I think is right, the bug was introduced in version 10.0.7 (Apr 10 2005) 
of the driver, and it still exists in current 10.0.11 (Jan 8, 2006). I will 
warn the driver developer sometime soon.

So, forget about this. If users start complaining, we can just create a FAQ 
entry for it.

---------- Oorspronkelijk bericht ----------
Van: "Youness Alaoui" <kakaroto@xxxxxxxxxxxxxxxxxxxxxx>
Onderwerp: Re: [Amsn-devel] Another pwc bug :-(
Datum: maandag 30 januari 2006 01:34


> ouch! stupid driver! do you think it can be fixed in some way ? maybe in
> msncam.tcl, do if $::pwc == 1, then  set new_value [expr $new_value << 1]
> or something...
>
> KKRT
>
> On Sat, 28 Jan 2006 11:39:51 -0500, Harry Vennik <htvennik@xxxxxxxxx>
>
> wrote:
> > Hi,
> >
> > I think I found another pwc bug.
> >
> > When setting the brightness to new_value, it is really set to (new_value
> >
> > 1). When setting contrast to new_value, it is actually set to (new_value
> >
> > 2).
> >
> > Seems like pwc emulates a 0 - 255 range for both, while the actual range
> > is 0
> > - 127 for brightness and 0 - 63 for contrast. The bug is that this
> > emulation
> > is not complete: it is done only when setting an attribute. It gives the
> > real
> > range when asked about it, and also doesn't convert back to the 0 - 255
> > range
> > when we get the value :S
> >
> > Because of this, pwc users can set their brightness only in the range 0
> > - 63
> > and contrast only in 0 - 16! (With latest cvs. Before today, things were
> > even
> > worse. Setting it was hardly possible because the slider had a fixed 0 -
> > 65535 range).
> >
> > Harry
> >
> >
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