[cairo] Struggling with subpixel text (last blocker for 1.8)
behdad at behdad.org
Thu Sep 25 11:58:21 PDT 2008
Carl Worth wrote:
> So I stayed up all night trying to get the 1.8 release done.
> The final result I got to was a single test not passing, (I
> intentionally wasn't testing xlib to avoid X server/driver issues):
> And this one is a regression. It's giving me grayscale antialiasing
> instead of subpixel on image and other backends. The text passes fine
> back in 1.6.4.
I suspect your fontconfig configuration. I've seen you have this problem
before :). I just compiled FreeType with subpixel enabled and confirmed that
I get subpixel rendering form that test (were not getting before). It's
slightly different from the ref image, but looks as correct.
> Behdad, do you have some guidance here?
It basically comes down to this bug against fontconfig:
Send me your config and I'll try to make sense of it.
> Can you fix the code so that the test suite works?
Works for me.
> Or shall we just go ahead with the revert and bring
> back the LCD filter functionality in 1.8.2 or so?
I don't see any reason for that.
> I know you were hoping
> to wake up and see that the release had already happened. Sorry that
> didn't happen, but this is really the last issue left.
> -Carl (overdue for sleep)
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