On Sat, Oct 18, 2008 at 12:35 PM, Clemens Eisserer <[EMAIL PROTECTED]> wrote: > Hi Maarten, > >> Do you have a test program or at least share the transformation matrix >> you're using, because i'm curious why it fails so badly. > Yes I created one, http://pastebin.com/f729a71aa > The testcase works perfectly with pixman (even with much higher > scale), but on intel seems the mask has too small x/y values. > Would be really interesting how other hardware/drivers behave ;) > >>Have you >> tried using a 1x1 mask pixel and scaling that an integer amount? > I used a 16x16 mask ... just without any further thinking, thought it > would give me more headroom till I hit precision limits. > I've now tried it with a 1x1 mask (as in the attached testcase), its the same. > It seems only to work when mask is 0.75-1.5 of the size of the source, > otherwise the pixel-borders differ :-/ > > Thanks, Clemens > _______________________________________________ > xorg mailing list > xorg@lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/xorg >
Where do these transformation matrices come from? Maarten. _______________________________________________ xorg mailing list xorg@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/xorg