<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Sat, Jul 29, 2017 at 11:58 AM, Uli Schlachter <span dir="ltr"><<a href="mailto:psychon@znc.in" target="_blank">psychon@znc.in</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi Behdad<br> <br> I don't think that is my decision to make. When thinking about "fonts in<br> cairo", I'm thinking "Behdad". I'm just asking weird questions from the<br> sideline. :-)<br></blockquote><div><br></div><div>Thanks. :-) Pushed!!!! At least ten people already asked me "what's up with emoji" at GUADEC...<br> <br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> Uli<br> <br> P.S.: How relevant and up to date is the CC list here? I always get a<br> "your message to gtk-devel-list awaits moderator approval"-mail when<br> replying to this thread...<br><div><div class="h5"></div></div></blockquote><div><br></div><div>My messages go through, yours probably don't because you are not a member. It's valuable still.<br><br></div><div>Cheers,<br></div><div>b<br></div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="h5"> On 28.07.2017 16:38, Behdad Esfahbod wrote:<br> > Uli,<br> ><br> > Can we commit this? I don't think waiting another few years will result in<br> > a superior patchset. :)<br> ><br> > Cheers,<br> ><br> > behdad<br> ><br> > On Wed, Jul 19, 2017 at 1:53 AM, Behdad Esfahbod <<a href="mailto:behdad@behdad.org">behdad@behdad.org</a>> wrote:<br> ><br> >> Right. In the future we would want to make it show glyphs in the input<br> >> order, ie. not separate color vs non-color. That's the order required by<br> >> CSS for example. In a show-text-glyphs call with CAIRO_TEXT_CLUSTER_FLAG_<wbr>BACKWARD,<br> >> it might be desirable to show back-to-front.<br> >><br> >> On Tue, Jul 18, 2017 at 1:59 PM, Matthias Clasen <<br> >> <a href="mailto:matthias.clasen@gmail.com">matthias.clasen@gmail.com</a>> wrote:<br> >><br> >>> On Sat, Jul 15, 2017 at 4:05 AM, Uli Schlachter <<a href="mailto:psychon@znc.in">psychon@znc.in</a>> wrote:<br> >>><br> >>>> On 07.07.2017 15:23, Matthias Clasen wrote:<br> >>>>> On Sat, Jul 1, 2017 at 2:25 AM, Uli Schlachter <<a href="mailto:psychon@znc.in">psychon@znc.in</a>> wrote:<br> >>>>>> On 30.06.2017 17:29, Behdad Esfahbod wrote:<br> >>>>>>> On Jun 30, 2017 7:51 PM, "Matthias Clasen" <<a href="mailto:mclasen@redhat.com">mclasen@redhat.com</a>><br> >>>> wrote:<br> >>>>>>> On Fri, 2017-06-30 at 17:02 +0200, Uli Schlachter wrote:<br> >>>>>>>> On 28.06.2017 14:23, Behdad Esfahbod wrote:<br> >>>>>>>>> All of you have asked me about the status of color fonts in<br> >>>>>>>>> cairo. There's<br> >>>>>>>>> some discussion here:<br> >>>>>>>><br> >>>>>>>> what was the solution to make this fit into cairo's drawing model?<br> >>>>>>>> Text<br> >>>>>>>> / glyphs are used as a mask and a mask does not have colors.<br> >>>>>>>><br> >>>>>>><br> >>>>>>> There is no solution to that. The assumption in cairo's drawing model<br> >>>>>>> about glyphs/fonts has simply been invalidated by reality.<br> >>>>>>><br> >>>>>>><br> >>>>>>> Correct.<br> >>>>>><br> >>>>>> Okay... so what is the new model? What happens when I draw a color<br> >>>> glyph<br> >>>>>> with operator XOR and a red source?<br> >>>>><br> >>>>><br> >>>>> The red source is ignored for color glyphs because they are used as the<br> >>>>> source.<br> >>>><br> >>>> Hi again,<br> >>>><br> >>>> I just came up with another question: How are overlapping glyphs handled?<br> >>>><br> >>>> Let's say I have a red glyph and a blue glyph and I draw them in such a<br> >>>> way that they overlap. Let's say this additionally overlaps with a<br> >>>> non-colored glyph in the same position and I use a green source with 50%<br> >>>> alpha (cairo_set_source_rgba(cr, 0, 1, 0, 0.5)).<br> >>>><br> >>>> What's the visible result?<br> >>>><br> >>>><br> >>> Here is what my implementation does: It renders the color glyphs, in<br> >>> order, followed by the non-color glyphs.<br> >>><br> >>> In practice, I don't think the case of mixed color and non-color glyphs<br> >>> in the same call will be all that common.<br> >>> Most apps will explicitly set a color font just for the emoji and they<br> >>> won't render regular text with an emoji font,<br> >>> with the result that runs of color glyphs and non-color glyphs will<br> >>> typically be in separate calls.<br> >>><br> >><br> >><br> >><br> >> --<br> >> behdad<br> >> <a href="http://behdad.org/" rel="noreferrer" target="_blank">http://behdad.org/</a><br> >><br> ><br> ><br> ><br> <br> <br> --<br> </div></div>"Why make things difficult, when it is possible to make them cryptic<br> and totally illogical, with just a little bit more effort?" -- A. P. J.<br> </blockquote></div><br><br clear="all"><br>-- <br><div class="gmail_signature" data-smartmail="gmail_signature">behdad<br><a href="http://behdad.org/" target="_blank">http://behdad.org/</a></div> </div></div>