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