[Openchrome-users] XAA SolidFillRect problem with negative x value

[Benno Schulenberg]

Mark Huijgen wrote:
> Then I looked at the code in viaInitXAA(ScreenPtr pScreen) and
> disabled this part (commented out)
> xaaptr->SetClippingRectangle = viaSetClippingRectangle;
> xaaptr->DisableClipping = viaDisableClipping;
> xaaptr->ClippingFlags

Then it would be interesting to know with what values 
viaSetClippingRectangle is called when the glitch occurs.

If negative, then I'd think that it's at least also an application 
error, because, when fullscreen, how can it have a negative x?

> Anyway I dont know what the via chip does and what it does not
> support in hardware, but it seems negative x's for solid fill
> isnt one of the things it supports.

Nor does, probably, the intel chip.  When in the intel driver you 
artificially create a negative x value in SubsequentSolidFillRect, 
does it glitch too?  Or does it get properly clipped?

Benno