* bug#44020: 28.0.50; Prefer selection of colour emoji fonts? @ 2020-10-15 18:10 Lars Ingebrigtsen 2020-10-15 18:52 ` Eli Zaretskii 2021-11-06 19:00 ` Lars Ingebrigtsen 0 siblings, 2 replies; 34+ messages in thread From: Lars Ingebrigtsen @ 2020-10-15 18:10 UTC (permalink / raw) To: 44020 If I start "emacs -Q" and load a file with this character: 🎉 Emacs shows that as a black-and-white symbol using the Symbola font. If I then say (set-fontset-font t 'symbol "Noto Color Emoji") (set-fontset-font t 'symbol "Symbola" nil 'append) I get a colourful party popper. It'd be nice if this worked out of the box. What do other programs do? Have a huge list of fonts they prefer over other fonts? In GNU Emacs 28.0.50 (build 49, x86_64-pc-linux-gnu, GTK+ Version 3.24.23, cairo version 1.16.0) of 2020-10-14 built on xo Repository revision: 1ee5a4cb1afe5a55d78e35cab2ad8651196c8967 Repository branch: master Windowing system distributor 'The X.Org Foundation', version 11.0.12008000 System Description: Debian GNU/Linux bullseye/sid -- (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no ^ permalink raw reply [flat|nested] 34+ messages in thread
* bug#44020: 28.0.50; Prefer selection of colour emoji fonts? 2020-10-15 18:10 bug#44020: 28.0.50; Prefer selection of colour emoji fonts? Lars Ingebrigtsen @ 2020-10-15 18:52 ` Eli Zaretskii 2020-10-16 8:19 ` Robert Pluim 2021-11-06 19:00 ` Lars Ingebrigtsen 1 sibling, 1 reply; 34+ messages in thread From: Eli Zaretskii @ 2020-10-15 18:52 UTC (permalink / raw) To: Lars Ingebrigtsen, Robert Pluim; +Cc: 44020 > From: Lars Ingebrigtsen <larsi@gnus.org> > Date: Thu, 15 Oct 2020 20:10:44 +0200 > > > If I start "emacs -Q" and load a file with this character: > > 🎉 > > Emacs shows that as a black-and-white symbol using the Symbola font. > > If I then say > > (set-fontset-font t 'symbol "Noto Color Emoji") > (set-fontset-font t 'symbol "Symbola" nil 'append) > > I get a colourful party popper. > > It'd be nice if this worked out of the box. AFAIR, Robert Pluim worked on better support for Emoji display; that needs a few more tweaks and importing one more file from the UCD, to support Emoji sequences. I hope this will be ready some time soon. Robert? ^ permalink raw reply [flat|nested] 34+ messages in thread
* bug#44020: 28.0.50; Prefer selection of colour emoji fonts? 2020-10-15 18:52 ` Eli Zaretskii @ 2020-10-16 8:19 ` Robert Pluim 2020-10-16 10:26 ` Eli Zaretskii 2020-10-16 14:49 ` Lars Ingebrigtsen 0 siblings, 2 replies; 34+ messages in thread From: Robert Pluim @ 2020-10-16 8:19 UTC (permalink / raw) To: Eli Zaretskii; +Cc: 44020, Lars Ingebrigtsen >>>>> On Thu, 15 Oct 2020 21:52:19 +0300, Eli Zaretskii <eliz@gnu.org> said: >> From: Lars Ingebrigtsen <larsi@gnus.org> >> Date: Thu, 15 Oct 2020 20:10:44 +0200 >> >> >> If I start "emacs -Q" and load a file with this character: >> >> 🎉 >> >> Emacs shows that as a black-and-white symbol using the Symbola font. >> >> If I then say >> >> (set-fontset-font t 'symbol "Noto Color Emoji") >> (set-fontset-font t 'symbol "Symbola" nil 'append) >> >> I get a colourful party popper. >> >> It'd be nice if this worked out of the box. Eli> AFAIR, Robert Pluim worked on better support for Emoji display; that Eli> needs a few more tweaks and importing one more file from the UCD, to Eli> support Emoji sequences. I hope this will be ready some time soon. Eli> Robert? Thereʼs three parts to that: 1. Deciding what fonts we should use for emoji. We can get a lot of good results by adding appropriate 'set-fontset-font' calls to emacs, independently of any other work (I also wonder if we should change the default of use-default-font-for-symbols, given the proliferation of both emoji and fonts dedicated to displaying them) 2. Extract the emoji sequences from the Unicode data files and assign them to a new 'emoji' script. Be prepared to choose your favourite bikeshed colour. 3. Add the appropriate entries to composition-function-table so that the various multi-codepoint emoji sequences have a chance to be rendered correctly, whether by HarfBuzz or the Apple thing whose name I forget. For [1], I think "Noto Color Emoji" and "Apple Color Emoji" would be a good start. For [2], I think that was finished, except that Eli then updated Emacs to the next version of Unicode, and I haven't adjusted yet. [3] is done for the cases that composition can currently handle. I recall that there are sequences that require composition to do lookback, which I think YAMAMOTO-san has patches for, but they've not been submitted to Emacs (a quick perusal of my notes says this is for keycap emojis, so I guess thatʼs a minor nit). Oh, and there was a complication with enabling this by default on macOS that I donʼt fully understand yet. Iʼll reread the history. Iʼll see if I can clean this up this weekend and throw it on a branch. Robert -- ^ permalink raw reply [flat|nested] 34+ messages in thread
* bug#44020: 28.0.50; Prefer selection of colour emoji fonts? 2020-10-16 8:19 ` Robert Pluim @ 2020-10-16 10:26 ` Eli Zaretskii 2020-10-16 10:38 ` Robert Pluim 2020-10-16 14:49 ` Lars Ingebrigtsen 1 sibling, 1 reply; 34+ messages in thread From: Eli Zaretskii @ 2020-10-16 10:26 UTC (permalink / raw) To: Robert Pluim; +Cc: 44020, larsi > From: Robert Pluim <rpluim@gmail.com> > Cc: Lars Ingebrigtsen <larsi@gnus.org>, 44020@debbugs.gnu.org > Date: Fri, 16 Oct 2020 10:19:12 +0200 > > 1. Deciding what fonts we should use for emoji. We can get a lot of > good results by adding appropriate 'set-fontset-font' calls to > emacs, independently of any other work (I also wonder if we should > change the default of use-default-font-for-symbols, given the > proliferation of both emoji and fonts dedicated to displaying them) > > 2. Extract the emoji sequences from the Unicode data files and assign > them to a new 'emoji' script. Be prepared to choose your favourite > bikeshed colour. > > 3. Add the appropriate entries to composition-function-table so that > the various multi-codepoint emoji sequences have a chance to be > rendered correctly, whether by HarfBuzz or the Apple thing whose > name I forget. > > For [1], I think "Noto Color Emoji" and "Apple Color Emoji" would be a > good start. I agree, but [1] depends on [2], because set-fontset-font needs to know the script. Also, Noto Color Emoji has a free license, so it's okay for it to be in fontset.el, but it is not clear to me whether Apple Color Emoji is distributed under a free license. > For [2], I think that was finished, except that Eli then updated Emacs > to the next version of Unicode, and I haven't adjusted yet. "Finished", in the sense that it is in Emacs already? > Iʼll see if I can clean this up this weekend and throw it on a branch. Thanks. FWIW, I think this is good enough to land on master directly, I see no need for a feature branch. ^ permalink raw reply [flat|nested] 34+ messages in thread
* bug#44020: 28.0.50; Prefer selection of colour emoji fonts? 2020-10-16 10:26 ` Eli Zaretskii @ 2020-10-16 10:38 ` Robert Pluim 2020-10-16 10:49 ` Eli Zaretskii 2020-10-16 19:30 ` Alan Third 0 siblings, 2 replies; 34+ messages in thread From: Robert Pluim @ 2020-10-16 10:38 UTC (permalink / raw) To: Eli Zaretskii; +Cc: 44020, larsi >>>>> On Fri, 16 Oct 2020 13:26:42 +0300, Eli Zaretskii <eliz@gnu.org> said: >> From: Robert Pluim <rpluim@gmail.com> >> Cc: Lars Ingebrigtsen <larsi@gnus.org>, 44020@debbugs.gnu.org >> Date: Fri, 16 Oct 2020 10:19:12 +0200 >> >> 1. Deciding what fonts we should use for emoji. We can get a lot of >> good results by adding appropriate 'set-fontset-font' calls to >> emacs, independently of any other work (I also wonder if we should >> change the default of use-default-font-for-symbols, given the >> proliferation of both emoji and fonts dedicated to displaying them) >> >> 2. Extract the emoji sequences from the Unicode data files and assign >> them to a new 'emoji' script. Be prepared to choose your favourite >> bikeshed colour. >> >> 3. Add the appropriate entries to composition-function-table so that >> the various multi-codepoint emoji sequences have a chance to be >> rendered correctly, whether by HarfBuzz or the Apple thing whose >> name I forget. >> >> For [1], I think "Noto Color Emoji" and "Apple Color Emoji" would be a >> good start. Eli> I agree, but [1] depends on [2], because set-fontset-font needs to Eli> know the script. set-fontset-font with a TARGET covering the emoji codepoints in question, I meant. Youʼre right itʼs probably cleaner to do both at the same time. Eli> Also, Noto Color Emoji has a free license, so it's okay for it to be Eli> in fontset.el, but it is not clear to me whether Apple Color Emoji is Eli> distributed under a free license. Itʼs marked 'Copyright Apple 2011-2016' in the macOS font selector. And Apple appear to be both sensitive and litigious about it, so probably best not to promote it. >> For [2], I think that was finished, except that Eli then updated Emacs >> to the next version of Unicode, and I haven't adjusted yet. Eli> "Finished", in the sense that it is in Emacs already? No, finished as in "it works for me on my mac and GNU/Linux boxes" 🙂 As I said, it needs adjusting to the latest Unicode update. >> Iʼll see if I can clean this up this weekend and throw it on a branch. Eli> Thanks. Eli> FWIW, I think this is good enough to land on master directly, I see no Eli> need for a feature branch. OK. Robert -- ^ permalink raw reply [flat|nested] 34+ messages in thread
* bug#44020: 28.0.50; Prefer selection of colour emoji fonts? 2020-10-16 10:38 ` Robert Pluim @ 2020-10-16 10:49 ` Eli Zaretskii 2020-10-16 19:30 ` Alan Third 1 sibling, 0 replies; 34+ messages in thread From: Eli Zaretskii @ 2020-10-16 10:49 UTC (permalink / raw) To: Robert Pluim; +Cc: 44020, larsi > From: Robert Pluim <rpluim@gmail.com> > Cc: larsi@gnus.org, 44020@debbugs.gnu.org > Date: Fri, 16 Oct 2020 12:38:18 +0200 > > >> 1. Deciding what fonts we should use for emoji. We can get a lot of > >> good results by adding appropriate 'set-fontset-font' calls to > >> emacs, independently of any other work (I also wonder if we should > >> change the default of use-default-font-for-symbols, given the > >> proliferation of both emoji and fonts dedicated to displaying them) > >> > >> 2. Extract the emoji sequences from the Unicode data files and assign > >> them to a new 'emoji' script. Be prepared to choose your favourite > >> bikeshed colour. > >> > >> 3. Add the appropriate entries to composition-function-table so that > >> the various multi-codepoint emoji sequences have a chance to be > >> rendered correctly, whether by HarfBuzz or the Apple thing whose > >> name I forget. > >> > >> For [1], I think "Noto Color Emoji" and "Apple Color Emoji" would be a > >> good start. > > Eli> I agree, but [1] depends on [2], because set-fontset-font needs to > Eli> know the script. > > set-fontset-font with a TARGET covering the emoji codepoints in > question, I meant. Youʼre right itʼs probably cleaner to do both at > the same time. Yes, because using the codepoints will mean more maintenance in the future, as more Emoji blocks are added (and they will be, quite certainly). > > Eli> Also, Noto Color Emoji has a free license, so it's okay for it to be > Eli> in fontset.el, but it is not clear to me whether Apple Color Emoji is > Eli> distributed under a free license. > > Itʼs marked 'Copyright Apple 2011-2016' in the macOS font > selector. And Apple appear to be both sensitive and litigious about > it, so probably best not to promote it. Right. People will have to do that on their own, if they don't want to install a free font. ^ permalink raw reply [flat|nested] 34+ messages in thread
* bug#44020: 28.0.50; Prefer selection of colour emoji fonts? 2020-10-16 10:38 ` Robert Pluim 2020-10-16 10:49 ` Eli Zaretskii @ 2020-10-16 19:30 ` Alan Third 2020-10-17 6:38 ` Lars Ingebrigtsen 2020-10-17 6:44 ` Eli Zaretskii 1 sibling, 2 replies; 34+ messages in thread From: Alan Third @ 2020-10-16 19:30 UTC (permalink / raw) To: Robert Pluim; +Cc: 44020, larsi On Fri, Oct 16, 2020 at 12:38:18PM +0200, Robert Pluim wrote: > >>>>> On Fri, 16 Oct 2020 13:26:42 +0300, Eli Zaretskii <eliz@gnu.org> said: > > Eli> Also, Noto Color Emoji has a free license, so it's okay for it to be > Eli> in fontset.el, but it is not clear to me whether Apple Color Emoji is > Eli> distributed under a free license. > > Itʼs marked 'Copyright Apple 2011-2016' in the macOS font > selector. And Apple appear to be both sensitive and litigious about > it, so probably best not to promote it. On the other hand it comes preinstalled, it only works on Apple devices, and Noto Color Emoji doesn't work on Apple devices. I'm not sure we'd really be "promoting" it. IIRC Windows comes with Segoe UI Emoji preinstalled too. -- Alan Third ^ permalink raw reply [flat|nested] 34+ messages in thread
* bug#44020: 28.0.50; Prefer selection of colour emoji fonts? 2020-10-16 19:30 ` Alan Third @ 2020-10-17 6:38 ` Lars Ingebrigtsen 2020-10-17 9:12 ` Eli Zaretskii 2020-10-17 15:27 ` Alan Third 2020-10-17 6:44 ` Eli Zaretskii 1 sibling, 2 replies; 34+ messages in thread From: Lars Ingebrigtsen @ 2020-10-17 6:38 UTC (permalink / raw) To: Alan Third; +Cc: 44020, Robert Pluim Alan Third <alan@idiocy.org> writes: > On the other hand it comes preinstalled, it only works on Apple > devices, and Noto Color Emoji doesn't work on Apple devices. I'm not > sure we'd really be "promoting" it. On the third hand, since it's preinstalled, Emacs doesn't need to mention it, because it's always there, and Emacs won't have problems displaying the characters it offers. -- (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no ^ permalink raw reply [flat|nested] 34+ messages in thread
* bug#44020: 28.0.50; Prefer selection of colour emoji fonts? 2020-10-17 6:38 ` Lars Ingebrigtsen @ 2020-10-17 9:12 ` Eli Zaretskii 2020-10-18 8:09 ` Lars Ingebrigtsen 2020-10-17 15:27 ` Alan Third 1 sibling, 1 reply; 34+ messages in thread From: Eli Zaretskii @ 2020-10-17 9:12 UTC (permalink / raw) To: Lars Ingebrigtsen; +Cc: 44020, alan, rpluim > From: Lars Ingebrigtsen <larsi@gnus.org> > Cc: Robert Pluim <rpluim@gmail.com>, Eli Zaretskii <eliz@gnu.org>, > 44020@debbugs.gnu.org > Date: Sat, 17 Oct 2020 08:38:10 +0200 > > Alan Third <alan@idiocy.org> writes: > > > On the other hand it comes preinstalled, it only works on Apple > > devices, and Noto Color Emoji doesn't work on Apple devices. I'm not > > sure we'd really be "promoting" it. > > On the third hand, since it's preinstalled, Emacs doesn't need to > mention it, because it's always there, and Emacs won't have problems > displaying the characters it offers. Are you sure? What exactly makes sure Emacs won't have any problems in those cases? For starters, does Emacs really know that a given character belongs to "Emoji"? And if it does, does it know how to filter fonts that support Emoji? ^ permalink raw reply [flat|nested] 34+ messages in thread
* bug#44020: 28.0.50; Prefer selection of colour emoji fonts? 2020-10-17 9:12 ` Eli Zaretskii @ 2020-10-18 8:09 ` Lars Ingebrigtsen 2020-10-18 15:02 ` Eli Zaretskii 0 siblings, 1 reply; 34+ messages in thread From: Lars Ingebrigtsen @ 2020-10-18 8:09 UTC (permalink / raw) To: Eli Zaretskii; +Cc: 44020, alan, rpluim Eli Zaretskii <eliz@gnu.org> writes: >> On the third hand, since it's preinstalled, Emacs doesn't need to >> mention it, because it's always there, and Emacs won't have problems >> displaying the characters it offers. > > Are you sure? What exactly makes sure Emacs won't have any problems > in those cases? For starters, does Emacs really know that a given > character belongs to "Emoji"? And if it does, does it know how to > filter fonts that support Emoji? I thought that Emacs looped through all the fonts on the system and checked whether the font had coverage for the character we wanted to display? -- (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no ^ permalink raw reply [flat|nested] 34+ messages in thread
* bug#44020: 28.0.50; Prefer selection of colour emoji fonts? 2020-10-18 8:09 ` Lars Ingebrigtsen @ 2020-10-18 15:02 ` Eli Zaretskii 2020-10-19 8:35 ` Lars Ingebrigtsen 0 siblings, 1 reply; 34+ messages in thread From: Eli Zaretskii @ 2020-10-18 15:02 UTC (permalink / raw) To: Lars Ingebrigtsen; +Cc: 44020, alan, rpluim > From: Lars Ingebrigtsen <larsi@gnus.org> > Cc: alan@idiocy.org, rpluim@gmail.com, 44020@debbugs.gnu.org > Date: Sun, 18 Oct 2020 10:09:09 +0200 > > > Are you sure? What exactly makes sure Emacs won't have any problems > > in those cases? For starters, does Emacs really know that a given > > character belongs to "Emoji"? And if it does, does it know how to > > filter fonts that support Emoji? > > I thought that Emacs looped through all the fonts on the system and > checked whether the font had coverage for the character we wanted to > display? It does -- for some value of "check". Opening a font and trying to find a glyph for a character is expensive, so Emacs tries to avoid that as much as possible. Instead, it uses less expensive "checks" that don't require actually opening the font. The details are somewhat complicated (and I'm not sure I have a sufficiently clear picture of them, nor that we have someone on board who does), and the are to some extent font-backend dependent, but they have to do with the character's script, the script's characters in script-representative-chars, and system APIs for finding fonts that support those. And the first problem with Emoji characters in this context is that their script is 'symbol', which doesn't allow us to assign an Emoji font to them as a script. ^ permalink raw reply [flat|nested] 34+ messages in thread
* bug#44020: 28.0.50; Prefer selection of colour emoji fonts? 2020-10-18 15:02 ` Eli Zaretskii @ 2020-10-19 8:35 ` Lars Ingebrigtsen 0 siblings, 0 replies; 34+ messages in thread From: Lars Ingebrigtsen @ 2020-10-19 8:35 UTC (permalink / raw) To: Eli Zaretskii; +Cc: 44020, alan, rpluim Eli Zaretskii <eliz@gnu.org> writes: > It does -- for some value of "check". Opening a font and trying to > find a glyph for a character is expensive, so Emacs tries to avoid > that as much as possible. Instead, it uses less expensive "checks" > that don't require actually opening the font. The details are > somewhat complicated (and I'm not sure I have a sufficiently clear > picture of them, nor that we have someone on board who does), and the > are to some extent font-backend dependent, but they have to do with > the character's script, the script's characters in > script-representative-chars, and system APIs for finding fonts that > support those. And the first problem with Emoji characters in this > context is that their script is 'symbol', which doesn't allow us to > assign an Emoji font to them as a script. Ah, I see. Thank you for the explanation. -- (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no ^ permalink raw reply [flat|nested] 34+ messages in thread
* bug#44020: 28.0.50; Prefer selection of colour emoji fonts? 2020-10-17 6:38 ` Lars Ingebrigtsen 2020-10-17 9:12 ` Eli Zaretskii @ 2020-10-17 15:27 ` Alan Third 2020-10-17 15:51 ` Alan Third 1 sibling, 1 reply; 34+ messages in thread From: Alan Third @ 2020-10-17 15:27 UTC (permalink / raw) To: Lars Ingebrigtsen; +Cc: 44020, Robert Pluim On Sat, Oct 17, 2020 at 08:38:10AM +0200, Lars Ingebrigtsen wrote: > Alan Third <alan@idiocy.org> writes: > > > On the other hand it comes preinstalled, it only works on Apple > > devices, and Noto Color Emoji doesn't work on Apple devices. I'm not > > sure we'd really be "promoting" it. > > On the third hand, since it's preinstalled, Emacs doesn't need to > mention it, because it's always there, and Emacs won't have problems > displaying the characters it offers. Even once I remove this code: modified src/macfont.m @@ -2414,11 +2414,6 @@ So we use CTFontDescriptorCreateMatchingFontDescriptor (no != (spacing >= FONT_SPACING_MONO))) continue; - /* Don't use a color bitmap font unless its family is - explicitly specified. */ - if ((sym_traits & kCTFontTraitColorGlyphs) && NILP (family)) - continue; - if (j > 0 && !macfont_supports_charset_and_languages_p (desc, charset, chars, languages)) Emacs almost never finds Apple Color Emoji without help. I've no idea why. For some reason it finds the font for BLACK DOWN-POINTING DOUBLE TRIANGLE, but not SMILING FACE WITH SMILING EYES unless the former is already in the document. Should this Just Work? BTW, there is code in ns-win.el that plays with the default fontset on Macs which may be breaking our rules. -- Alan Third ^ permalink raw reply [flat|nested] 34+ messages in thread
* bug#44020: 28.0.50; Prefer selection of colour emoji fonts? 2020-10-17 15:27 ` Alan Third @ 2020-10-17 15:51 ` Alan Third 0 siblings, 0 replies; 34+ messages in thread From: Alan Third @ 2020-10-17 15:51 UTC (permalink / raw) To: Lars Ingebrigtsen, Robert Pluim, Eli Zaretskii, 44020 On Sat, Oct 17, 2020 at 04:27:58PM +0100, Alan Third wrote: > > Emacs almost never finds Apple Color Emoji without help. I've no idea > why. Sorry, I've just realised I'm going round in circles as this is exactly what Robert's working on. Ignore me, please. :) -- Alan Third ^ permalink raw reply [flat|nested] 34+ messages in thread
* bug#44020: 28.0.50; Prefer selection of colour emoji fonts? 2020-10-16 19:30 ` Alan Third 2020-10-17 6:38 ` Lars Ingebrigtsen @ 2020-10-17 6:44 ` Eli Zaretskii 2020-10-19 19:11 ` Robert Pluim 1 sibling, 1 reply; 34+ messages in thread From: Eli Zaretskii @ 2020-10-17 6:44 UTC (permalink / raw) To: Alan Third; +Cc: 44020, rpluim, larsi > Date: Fri, 16 Oct 2020 20:30:41 +0100 > From: Alan Third <alan@idiocy.org> > Cc: Eli Zaretskii <eliz@gnu.org>, 44020@debbugs.gnu.org, larsi@gnus.org > > On Fri, Oct 16, 2020 at 12:38:18PM +0200, Robert Pluim wrote: > > >>>>> On Fri, 16 Oct 2020 13:26:42 +0300, Eli Zaretskii <eliz@gnu.org> said: > > > > Eli> Also, Noto Color Emoji has a free license, so it's okay for it to be > > Eli> in fontset.el, but it is not clear to me whether Apple Color Emoji is > > Eli> distributed under a free license. > > > > Itʼs marked 'Copyright Apple 2011-2016' in the macOS font > > selector. And Apple appear to be both sensitive and litigious about > > it, so probably best not to promote it. > > On the other hand it comes preinstalled, it only works on Apple > devices, and Noto Color Emoji doesn't work on Apple devices. I'm not > sure we'd really be "promoting" it. > > IIRC Windows comes with Segoe UI Emoji preinstalled too. Both are true, but AFAIK our policy until now was not to mention such fonts in fontset.el. Emoji is just one example, btw. At least for MS-Windows, the latest versions come with many good fonts that cover most of the scripts. So if the restriction to avoid mentioning proprietary fonts in fontset.el could be lifted, we could produce a very capable and complete fontset for MS-Windows. I wouldn't be surprised if the same situation didn't exist on macOS. Not sure how things are on GNU/Linux, and what are the differences between the distros in this respect. ^ permalink raw reply [flat|nested] 34+ messages in thread
* bug#44020: 28.0.50; Prefer selection of colour emoji fonts? 2020-10-17 6:44 ` Eli Zaretskii @ 2020-10-19 19:11 ` Robert Pluim 0 siblings, 0 replies; 34+ messages in thread From: Robert Pluim @ 2020-10-19 19:11 UTC (permalink / raw) To: Eli Zaretskii; +Cc: 44020, Alan Third, larsi >>>>> On Sat, 17 Oct 2020 09:44:44 +0300, Eli Zaretskii <eliz@gnu.org> said: >> Date: Fri, 16 Oct 2020 20:30:41 +0100 >> From: Alan Third <alan@idiocy.org> >> Cc: Eli Zaretskii <eliz@gnu.org>, 44020@debbugs.gnu.org, larsi@gnus.org >> >> On Fri, Oct 16, 2020 at 12:38:18PM +0200, Robert Pluim wrote: >> > >>>>> On Fri, 16 Oct 2020 13:26:42 +0300, Eli Zaretskii <eliz@gnu.org> said: >> > >> > Eli> Also, Noto Color Emoji has a free license, so it's okay for it to be >> > Eli> in fontset.el, but it is not clear to me whether Apple Color Emoji is >> > Eli> distributed under a free license. >> > >> > Itʼs marked 'Copyright Apple 2011-2016' in the macOS font >> > selector. And Apple appear to be both sensitive and litigious about >> > it, so probably best not to promote it. >> >> On the other hand it comes preinstalled, it only works on Apple >> devices, and Noto Color Emoji doesn't work on Apple devices. I'm not >> sure we'd really be "promoting" it. >> >> IIRC Windows comes with Segoe UI Emoji preinstalled too. Eli> Both are true, but AFAIK our policy until now was not to mention such Eli> fonts in fontset.el. Eli> Emoji is just one example, btw. At least for MS-Windows, the latest Eli> versions come with many good fonts that cover most of the scripts. So Eli> if the restriction to avoid mentioning proprietary fonts in fontset.el Eli> could be lifted, we could produce a very capable and complete fontset Eli> for MS-Windows. I wouldn't be surprised if the same situation didn't Eli> exist on macOS. Not sure how things are on GNU/Linux, and what are Eli> the differences between the distros in this respect. Another thing that could be useful on GNU/Linux is to take advantage of the fact that most of them go out of their way to define pseudo-families for particular uses, such as 'emoji' or 'math', which then automatically adjust to the fonts installed on the system: $ fc-match 'emoji' NotoColorEmoji.ttf: "Noto Color Emoji" "Regular" :~ If I were to uninstall Noto Color Emoji, the same command would now return "Emoji One" Robert -- ^ permalink raw reply [flat|nested] 34+ messages in thread
* bug#44020: 28.0.50; Prefer selection of colour emoji fonts? 2020-10-16 8:19 ` Robert Pluim 2020-10-16 10:26 ` Eli Zaretskii @ 2020-10-16 14:49 ` Lars Ingebrigtsen 2020-10-19 10:56 ` Robert Pluim 1 sibling, 1 reply; 34+ messages in thread From: Lars Ingebrigtsen @ 2020-10-16 14:49 UTC (permalink / raw) To: Robert Pluim; +Cc: 44020 Robert Pluim <rpluim@gmail.com> writes: > Iʼll see if I can clean this up this weekend and throw it on a branch. Looking forward to it. :-) And I agree with Eli; doing it on the trunk would be fine. -- (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no ^ permalink raw reply [flat|nested] 34+ messages in thread
* bug#44020: 28.0.50; Prefer selection of colour emoji fonts? 2020-10-16 14:49 ` Lars Ingebrigtsen @ 2020-10-19 10:56 ` Robert Pluim 2020-10-19 14:55 ` Eli Zaretskii 0 siblings, 1 reply; 34+ messages in thread From: Robert Pluim @ 2020-10-19 10:56 UTC (permalink / raw) To: Lars Ingebrigtsen; +Cc: 44020 >>>>> On Fri, 16 Oct 2020 16:49:43 +0200, Lars Ingebrigtsen <larsi@gnus.org> said: Lars> Robert Pluim <rpluim@gmail.com> writes: >> Iʼll see if I can clean this up this weekend and throw it on a branch. Lars> Looking forward to it. :-) And I agree with Eli; doing it on the trunk Lars> would be fine. So revisiting this, it turns out I have *two* features sitting in my workspace: 1. splitting out the emoji into a separate script and setting the right fontset 2. adding composition rules for the zwj emoji described in emoji-zwj-sequences.txt [2] has some complications regarding the default display of the variation-selector, so Iʼll leave that aside for now, and continue on updating [1] to Unicode 13.0 Robert -- ^ permalink raw reply [flat|nested] 34+ messages in thread
* bug#44020: 28.0.50; Prefer selection of colour emoji fonts? 2020-10-19 10:56 ` Robert Pluim @ 2020-10-19 14:55 ` Eli Zaretskii 2020-10-19 18:34 ` Robert Pluim 0 siblings, 1 reply; 34+ messages in thread From: Eli Zaretskii @ 2020-10-19 14:55 UTC (permalink / raw) To: Robert Pluim; +Cc: 44020, larsi > From: Robert Pluim <rpluim@gmail.com> > Cc: 44020@debbugs.gnu.org, Eli Zaretskii <eliz@gnu.org> > Date: Mon, 19 Oct 2020 12:56:33 +0200 > > So revisiting this, it turns out I have *two* features sitting in my workspace: > > 1. splitting out the emoji into a separate script and setting the right > fontset > 2. adding composition rules for the zwj emoji described in > emoji-zwj-sequences.txt > > [2] has some complications regarding the default display of the > variation-selector, so Iʼll leave that aside for now, and continue on > updating [1] to Unicode 13.0 Thanks. Can you summarize the problems with [2]? I thought we had all of that figured out back when we discussed this. ^ permalink raw reply [flat|nested] 34+ messages in thread
* bug#44020: 28.0.50; Prefer selection of colour emoji fonts? 2020-10-19 14:55 ` Eli Zaretskii @ 2020-10-19 18:34 ` Robert Pluim 2020-10-19 18:52 ` Eli Zaretskii 2020-10-19 19:03 ` Stefan Kangas 0 siblings, 2 replies; 34+ messages in thread From: Robert Pluim @ 2020-10-19 18:34 UTC (permalink / raw) To: Eli Zaretskii; +Cc: 44020, larsi [-- Attachment #1: Type: text/plain, Size: 1636 bytes --] >>>>> On Mon, 19 Oct 2020 17:55:55 +0300, Eli Zaretskii <eliz@gnu.org> said: >> From: Robert Pluim <rpluim@gmail.com> >> Cc: 44020@debbugs.gnu.org, Eli Zaretskii <eliz@gnu.org> >> Date: Mon, 19 Oct 2020 12:56:33 +0200 >> >> So revisiting this, it turns out I have *two* features sitting in my workspace: >> >> 1. splitting out the emoji into a separate script and setting the right >> fontset >> 2. adding composition rules for the zwj emoji described in >> emoji-zwj-sequences.txt >> >> [2] has some complications regarding the default display of the >> variation-selector, so Iʼll leave that aside for now, and continue on >> updating [1] to Unicode 13.0 Eli> Thanks. Eli> Can you summarize the problems with [2]? I thought we had all of that Eli> figured out back when we discussed this. Perhaps we did: I have no clear memory of what we decided, so Iʼll have to go and re-read it. Iʼm attaching a gzipped patch for emoji support (it contains the entire emoji-data.txt from Unicode 13.0 🙂), which works for me on macOS when I do (set-fontset-font t 'emoji '("Apple Color Emoji . "iso1064601") nil 'prepend) It *should* work as-is on GNU/Linux, but for some reason Emacs is completely refusing to use any Emoji fonts for me there. Itʼs possible Iʼve messed up my system somehow, since emacs-27 has the same issue, but Iʼm seeing some very suspicious results from ftcrfont_glyph_extents (the font average width is always 0), so perhaps we need to adjust our font code. Testing appreciated. Robert -- [-- Attachment #2: 0001-emoji-using-blocks.txt.patch.gz --] [-- Type: application/octet-stream, Size: 26713 bytes --] ^ permalink raw reply [flat|nested] 34+ messages in thread
* bug#44020: 28.0.50; Prefer selection of colour emoji fonts? 2020-10-19 18:34 ` Robert Pluim @ 2020-10-19 18:52 ` Eli Zaretskii 2020-10-19 19:00 ` Robert Pluim 2020-10-19 19:03 ` Stephen Berman 2020-10-19 19:03 ` Stefan Kangas 1 sibling, 2 replies; 34+ messages in thread From: Eli Zaretskii @ 2020-10-19 18:52 UTC (permalink / raw) To: Robert Pluim; +Cc: 44020, larsi > From: Robert Pluim <rpluim@gmail.com> > Cc: 44020@debbugs.gnu.org, larsi@gnus.org > Date: Mon, 19 Oct 2020 20:34:41 +0200 > > (set-fontset-font t 'emoji '("Apple Color Emoji . "iso1064601") nil > 'prepend) > > It *should* work as-is on GNU/Linux, but for some reason Emacs is > completely refusing to use any Emoji fonts for me there. Itʼs possible > Iʼve messed up my system somehow, since emacs-27 has the same issue, > but Iʼm seeing some very suspicious results from > ftcrfont_glyph_extents (the font average width is always 0), so perhaps > we need to adjust our font code. Didn't someone say they can see color emoji on Cairo? ^ permalink raw reply [flat|nested] 34+ messages in thread
* bug#44020: 28.0.50; Prefer selection of colour emoji fonts? 2020-10-19 18:52 ` Eli Zaretskii @ 2020-10-19 19:00 ` Robert Pluim 2020-10-19 19:03 ` Stephen Berman 1 sibling, 0 replies; 34+ messages in thread From: Robert Pluim @ 2020-10-19 19:00 UTC (permalink / raw) To: Eli Zaretskii; +Cc: 44020, larsi >>>>> On Mon, 19 Oct 2020 21:52:13 +0300, Eli Zaretskii <eliz@gnu.org> said: >> From: Robert Pluim <rpluim@gmail.com> >> Cc: 44020@debbugs.gnu.org, larsi@gnus.org >> Date: Mon, 19 Oct 2020 20:34:41 +0200 >> >> (set-fontset-font t 'emoji '("Apple Color Emoji . "iso1064601") nil >> 'prepend) >> >> It *should* work as-is on GNU/Linux, but for some reason Emacs is >> completely refusing to use any Emoji fonts for me there. Itʼs possible >> Iʼve messed up my system somehow, since emacs-27 has the same issue, >> but Iʼm seeing some very suspicious results from >> ftcrfont_glyph_extents (the font average width is always 0), so perhaps >> we need to adjust our font code. Eli> Didn't someone say they can see color emoji on Cairo? Lars said he could, and itʼs in the NEWS file, so it worked at some point. I canʼt get either Noto Color Emoji nor Emoji One to work on GNU/Linux, because the following code in font.c bugs out /* We always open a font of manageable size; i.e non-zero average width and height. */ for (psize = pixel_size; ; psize++) { font_object = driver_list->driver->open_font (f, entity, psize); if (NILP (font_object)) return Qnil; font = XFONT_OBJECT (font_object); if (font->average_width > 0 && font->height > 0) break; /* Avoid an infinite loop. */ if (psize > pixel_size + 15) return Qnil; <====== here } and thatʼs because font->average_width is always 0. Robert -- ^ permalink raw reply [flat|nested] 34+ messages in thread
* bug#44020: 28.0.50; Prefer selection of colour emoji fonts? 2020-10-19 18:52 ` Eli Zaretskii 2020-10-19 19:00 ` Robert Pluim @ 2020-10-19 19:03 ` Stephen Berman 2020-10-19 19:46 ` Eli Zaretskii 1 sibling, 1 reply; 34+ messages in thread From: Stephen Berman @ 2020-10-19 19:03 UTC (permalink / raw) To: Eli Zaretskii; +Cc: 44020, Robert Pluim, larsi On Mon, 19 Oct 2020 21:52:13 +0300 Eli Zaretskii <eliz@gnu.org> wrote: >> From: Robert Pluim <rpluim@gmail.com> >> Cc: 44020@debbugs.gnu.org, larsi@gnus.org >> Date: Mon, 19 Oct 2020 20:34:41 +0200 >> >> (set-fontset-font t 'emoji '("Apple Color Emoji . "iso1064601") nil >> 'prepend) >> >> It *should* work as-is on GNU/Linux, but for some reason Emacs is >> completely refusing to use any Emoji fonts for me there. Itʼs possible >> Iʼve messed up my system somehow, since emacs-27 has the same issue, >> but Iʼm seeing some very suspicious results from >> ftcrfont_glyph_extents (the font average width is always 0), so perhaps >> we need to adjust our font code. > > Didn't someone say they can see color emoji on Cairo? Yes, Lars noted (and I confirm) that the following two lines suffice: (set-fontset-font t 'symbol "Noto Color Emoji") (set-fontset-font t 'symbol "Symbola" nil 'append) Steve Berman ^ permalink raw reply [flat|nested] 34+ messages in thread
* bug#44020: 28.0.50; Prefer selection of colour emoji fonts? 2020-10-19 19:03 ` Stephen Berman @ 2020-10-19 19:46 ` Eli Zaretskii 2020-10-19 22:00 ` Stephen Berman 0 siblings, 1 reply; 34+ messages in thread From: Eli Zaretskii @ 2020-10-19 19:46 UTC (permalink / raw) To: Stephen Berman; +Cc: 44020, rpluim, larsi > From: Stephen Berman <stephen.berman@gmx.net> > Cc: Robert Pluim <rpluim@gmail.com>, 44020@debbugs.gnu.org, larsi@gnus.org > Date: Mon, 19 Oct 2020 21:03:49 +0200 > > > Didn't someone say they can see color emoji on Cairo? > > Yes, Lars noted (and I confirm) that the following two lines suffice: > > (set-fontset-font t 'symbol "Noto Color Emoji") > (set-fontset-font t 'symbol "Symbola" nil 'append) Are the Emoji displayed by Noto Color Emoji or by Symbola? And what version of Noto Color Emoji do you have? And finally, could you step through the code shown by Robert and tell whether the Noto Color Emoji's average_width you get is also zero or non-zero? Thanks. ^ permalink raw reply [flat|nested] 34+ messages in thread
* bug#44020: 28.0.50; Prefer selection of colour emoji fonts? 2020-10-19 19:46 ` Eli Zaretskii @ 2020-10-19 22:00 ` Stephen Berman 2020-10-20 2:35 ` Eli Zaretskii 0 siblings, 1 reply; 34+ messages in thread From: Stephen Berman @ 2020-10-19 22:00 UTC (permalink / raw) To: Eli Zaretskii; +Cc: 44020, rpluim, larsi On Mon, 19 Oct 2020 22:46:50 +0300 Eli Zaretskii <eliz@gnu.org> wrote: >> From: Stephen Berman <stephen.berman@gmx.net> >> Cc: Robert Pluim <rpluim@gmail.com>, 44020@debbugs.gnu.org, larsi@gnus.org >> Date: Mon, 19 Oct 2020 21:03:49 +0200 >> >> > Didn't someone say they can see color emoji on Cairo? >> >> Yes, Lars noted (and I confirm) that the following two lines suffice: >> >> (set-fontset-font t 'symbol "Noto Color Emoji") >> (set-fontset-font t 'symbol "Symbola" nil 'append) > > Are the Emoji displayed by Noto Color Emoji or by Symbola? The majority of characters in emoji-data.txt are displayed by Noto Color Emoji, but a number of them are displayed by Symbola and some are displayed as tofu. > And what version of Noto Color Emoji do you have? v2018-04-24-pistol-update > And finally, could you step through the code shown by Robert and tell > whether the Noto Color Emoji's average_width you get is also zero or > non-zero? I started emacs -Q in gdb, evaluated the above two set-fontset-font sexps, put a breakpoint on font_open_entity, and typed `M-x 8 RET GRINNING FACE RET' and gdb took control, then I stepped through the function until gdb output `if (font->average_width > 0 && font->height > 0)' and then I entered `p font->average_width' and gdb output $1 = 16. Did I do this right and does that answer your question? If not, please advise. Steve Berman ^ permalink raw reply [flat|nested] 34+ messages in thread
* bug#44020: 28.0.50; Prefer selection of colour emoji fonts? 2020-10-19 22:00 ` Stephen Berman @ 2020-10-20 2:35 ` Eli Zaretskii 2020-10-20 7:33 ` Robert Pluim 0 siblings, 1 reply; 34+ messages in thread From: Eli Zaretskii @ 2020-10-20 2:35 UTC (permalink / raw) To: Stephen Berman; +Cc: 44020, rpluim, larsi > From: Stephen Berman <stephen.berman@gmx.net> > Cc: rpluim@gmail.com, 44020@debbugs.gnu.org, larsi@gnus.org > Date: Tue, 20 Oct 2020 00:00:35 +0200 > > > And what version of Noto Color Emoji do you have? > > v2018-04-24-pistol-update > > > And finally, could you step through the code shown by Robert and tell > > whether the Noto Color Emoji's average_width you get is also zero or > > non-zero? > > I started emacs -Q in gdb, evaluated the above two set-fontset-font > sexps, put a breakpoint on font_open_entity, and typed `M-x 8 RET > GRINNING FACE RET' and gdb took control, then I stepped through the > function until gdb output `if (font->average_width > 0 && font->height > > 0)' and then I entered `p font->average_width' and gdb output $1 = 16. > Did I do this right and does that answer your question? If not, please > advise. Yes, that's it. I wonder why Robert gets zero, perhaps a different version of the font? ^ permalink raw reply [flat|nested] 34+ messages in thread
* bug#44020: 28.0.50; Prefer selection of colour emoji fonts? 2020-10-20 2:35 ` Eli Zaretskii @ 2020-10-20 7:33 ` Robert Pluim 2020-10-20 8:58 ` Robert Pluim 0 siblings, 1 reply; 34+ messages in thread From: Robert Pluim @ 2020-10-20 7:33 UTC (permalink / raw) To: Eli Zaretskii; +Cc: 44020, larsi, Stephen Berman >>>>> On Tue, 20 Oct 2020 05:35:39 +0300, Eli Zaretskii <eliz@gnu.org> said: >> From: Stephen Berman <stephen.berman@gmx.net> >> Cc: rpluim@gmail.com, 44020@debbugs.gnu.org, larsi@gnus.org >> Date: Tue, 20 Oct 2020 00:00:35 +0200 >> >> > And what version of Noto Color Emoji do you have? >> >> v2018-04-24-pistol-update >> >> > And finally, could you step through the code shown by Robert and tell >> > whether the Noto Color Emoji's average_width you get is also zero or >> > non-zero? >> >> I started emacs -Q in gdb, evaluated the above two set-fontset-font >> sexps, put a breakpoint on font_open_entity, and typed `M-x 8 RET >> GRINNING FACE RET' and gdb took control, then I stepped through the >> function until gdb output `if (font->average_width > 0 && font->height > >> 0)' and then I entered `p font->average_width' and gdb output $1 = 16. >> Did I do this right and does that answer your question? If not, please >> advise. Eli> Yes, that's it. I wonder why Robert gets zero, perhaps a different Eli> version of the font? it seems Iʼm not alone in having problems with Noto Color Emoji on Ubuntu: <https://github.com/googlefonts/noto-emoji/issues/36> Debian time, I think (which has been on my list for a while in any case). Robert -- ^ permalink raw reply [flat|nested] 34+ messages in thread
* bug#44020: 28.0.50; Prefer selection of colour emoji fonts? 2020-10-20 7:33 ` Robert Pluim @ 2020-10-20 8:58 ` Robert Pluim 2020-10-20 14:28 ` Eli Zaretskii 0 siblings, 1 reply; 34+ messages in thread From: Robert Pluim @ 2020-10-20 8:58 UTC (permalink / raw) To: Eli Zaretskii; +Cc: 44020, larsi, Stephen Berman >>>>> On Tue, 20 Oct 2020 09:33:49 +0200, Robert Pluim <rpluim@gmail.com> said: >>>>> On Tue, 20 Oct 2020 05:35:39 +0300, Eli Zaretskii <eliz@gnu.org> said: Eli> Yes, that's it. I wonder why Robert gets zero, perhaps a different Eli> version of the font? Robert> it seems Iʼm not alone in having problems with Noto Color Emoji on Robert> Ubuntu: <https://github.com/googlefonts/noto-emoji/issues/36> Robert> Debian time, I think (which has been on my list for a while in any Robert> case). So it was failing on Debian as well, until I deleted my ~/.config/fontconfig directory, which ended up fixing it on Ubuntu as well. Robert -- ^ permalink raw reply [flat|nested] 34+ messages in thread
* bug#44020: 28.0.50; Prefer selection of colour emoji fonts? 2020-10-20 8:58 ` Robert Pluim @ 2020-10-20 14:28 ` Eli Zaretskii 2020-10-20 14:41 ` Robert Pluim 0 siblings, 1 reply; 34+ messages in thread From: Eli Zaretskii @ 2020-10-20 14:28 UTC (permalink / raw) To: Robert Pluim; +Cc: 44020, larsi, stephen.berman > From: Robert Pluim <rpluim@gmail.com> > Cc: 44020@debbugs.gnu.org, larsi@gnus.org, Stephen Berman > <stephen.berman@gmx.net> > Date: Tue, 20 Oct 2020 10:58:31 +0200 > > So it was failing on Debian as well, until I deleted my > ~/.config/fontconfig directory, which ended up fixing it on Ubuntu as > well. This Fontconfig cache thingy appears in too many trouble reports. Sounds like something we should ask users to do up front whenever they report some weird font-related issue. ^ permalink raw reply [flat|nested] 34+ messages in thread
* bug#44020: 28.0.50; Prefer selection of colour emoji fonts? 2020-10-20 14:28 ` Eli Zaretskii @ 2020-10-20 14:41 ` Robert Pluim 0 siblings, 0 replies; 34+ messages in thread From: Robert Pluim @ 2020-10-20 14:41 UTC (permalink / raw) To: Eli Zaretskii; +Cc: 44020, larsi, stephen.berman >>>>> On Tue, 20 Oct 2020 17:28:14 +0300, Eli Zaretskii <eliz@gnu.org> said: >> From: Robert Pluim <rpluim@gmail.com> >> Cc: 44020@debbugs.gnu.org, larsi@gnus.org, Stephen Berman >> <stephen.berman@gmx.net> >> Date: Tue, 20 Oct 2020 10:58:31 +0200 >> >> So it was failing on Debian as well, until I deleted my >> ~/.config/fontconfig directory, which ended up fixing it on Ubuntu as >> well. Eli> This Fontconfig cache thingy appears in too many trouble reports. Eli> Sounds like something we should ask users to do up front whenever they Eli> report some weird font-related issue. To be clear: this is not the fontconfig cache, itʼs the user-specific directory for configuring fontconfig. I had one because I was playing around with hinting styles at one point, and thatʼs exactly what can cause Noto Color Emoji to fail (donʼt ask me why). But yes, we should ask people to move both the fontconfig cache and the fontconfig user directory out of the way (or ask them to run FC_DEBUG=1024 emacs -Q, which will show us which fontconfig config files are being loaded). Robert -- ^ permalink raw reply [flat|nested] 34+ messages in thread
* bug#44020: 28.0.50; Prefer selection of colour emoji fonts? 2020-10-19 18:34 ` Robert Pluim 2020-10-19 18:52 ` Eli Zaretskii @ 2020-10-19 19:03 ` Stefan Kangas 2020-10-19 19:32 ` Robert Pluim 2020-10-19 19:47 ` Eli Zaretskii 1 sibling, 2 replies; 34+ messages in thread From: Stefan Kangas @ 2020-10-19 19:03 UTC (permalink / raw) To: Robert Pluim, Eli Zaretskii; +Cc: 44020, larsi Robert Pluim <rpluim@gmail.com> writes: > It *should* work as-is on GNU/Linux, but for some reason Emacs is > completely refusing to use any Emoji fonts for me there. Itʼs possible > Iʼve messed up my system somehow, since emacs-27 has the same issue, > but Iʼm seeing some very suspicious results from > ftcrfont_glyph_extents (the font average width is always 0), so perhaps > we need to adjust our font code. > > Testing appreciated. I applied your patch running on Debian GNU/Linux (bullseye/testing), and was able to display the "🎉" character from Lars' original message just fine here. ^ permalink raw reply [flat|nested] 34+ messages in thread
* bug#44020: 28.0.50; Prefer selection of colour emoji fonts? 2020-10-19 19:03 ` Stefan Kangas @ 2020-10-19 19:32 ` Robert Pluim 2020-10-19 19:47 ` Eli Zaretskii 1 sibling, 0 replies; 34+ messages in thread From: Robert Pluim @ 2020-10-19 19:32 UTC (permalink / raw) To: Stefan Kangas; +Cc: 44020, larsi >>>>> On Mon, 19 Oct 2020 19:03:22 +0000, Stefan Kangas <stefankangas@gmail.com> said: Stefan> Robert Pluim <rpluim@gmail.com> writes: >> It *should* work as-is on GNU/Linux, but for some reason Emacs is >> completely refusing to use any Emoji fonts for me there. Itʼs possible >> Iʼve messed up my system somehow, since emacs-27 has the same issue, >> but Iʼm seeing some very suspicious results from >> ftcrfont_glyph_extents (the font average width is always 0), so perhaps >> we need to adjust our font code. >> >> Testing appreciated. Stefan> I applied your patch running on Debian GNU/Linux (bullseye/testing), and Stefan> was able to display the "🎉" character from Lars' original message just Stefan> fine here. Thanks. I guess that means my local installation is screwed up somehow [1]. Time to download a new one 😊 Robert Footnotes: [1] Itʼs gone through a dist-upgrade at least 3 times, thatʼs bound to leave some scars. -- ^ permalink raw reply [flat|nested] 34+ messages in thread
* bug#44020: 28.0.50; Prefer selection of colour emoji fonts? 2020-10-19 19:03 ` Stefan Kangas 2020-10-19 19:32 ` Robert Pluim @ 2020-10-19 19:47 ` Eli Zaretskii 1 sibling, 0 replies; 34+ messages in thread From: Eli Zaretskii @ 2020-10-19 19:47 UTC (permalink / raw) To: Stefan Kangas; +Cc: 44020, rpluim, larsi > From: Stefan Kangas <stefankangas@gmail.com> > Date: Mon, 19 Oct 2020 19:03:22 +0000 > Cc: 44020@debbugs.gnu.org, larsi@gnus.org > > I applied your patch running on Debian GNU/Linux (bullseye/testing), and > was able to display the "🎉" character from Lars' original message just > fine here. Please see if you can answer the questions I asked Stephen. Thanks. ^ permalink raw reply [flat|nested] 34+ messages in thread
* bug#44020: 28.0.50; Prefer selection of colour emoji fonts? 2020-10-15 18:10 bug#44020: 28.0.50; Prefer selection of colour emoji fonts? Lars Ingebrigtsen 2020-10-15 18:52 ` Eli Zaretskii @ 2021-11-06 19:00 ` Lars Ingebrigtsen 1 sibling, 0 replies; 34+ messages in thread From: Lars Ingebrigtsen @ 2021-11-06 19:00 UTC (permalink / raw) To: 44020 Lars Ingebrigtsen <larsi@gnus.org> writes: > If I start "emacs -Q" and load a file with this character: > > 🎉 [...] > It'd be nice if this worked out of the box. This does work out of the box now, so I'm closing this bug report. -- (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no ^ permalink raw reply [flat|nested] 34+ messages in thread
end of thread, other threads:[~2021-11-06 19:00 UTC | newest] Thread overview: 34+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2020-10-15 18:10 bug#44020: 28.0.50; Prefer selection of colour emoji fonts? Lars Ingebrigtsen 2020-10-15 18:52 ` Eli Zaretskii 2020-10-16 8:19 ` Robert Pluim 2020-10-16 10:26 ` Eli Zaretskii 2020-10-16 10:38 ` Robert Pluim 2020-10-16 10:49 ` Eli Zaretskii 2020-10-16 19:30 ` Alan Third 2020-10-17 6:38 ` Lars Ingebrigtsen 2020-10-17 9:12 ` Eli Zaretskii 2020-10-18 8:09 ` Lars Ingebrigtsen 2020-10-18 15:02 ` Eli Zaretskii 2020-10-19 8:35 ` Lars Ingebrigtsen 2020-10-17 15:27 ` Alan Third 2020-10-17 15:51 ` Alan Third 2020-10-17 6:44 ` Eli Zaretskii 2020-10-19 19:11 ` Robert Pluim 2020-10-16 14:49 ` Lars Ingebrigtsen 2020-10-19 10:56 ` Robert Pluim 2020-10-19 14:55 ` Eli Zaretskii 2020-10-19 18:34 ` Robert Pluim 2020-10-19 18:52 ` Eli Zaretskii 2020-10-19 19:00 ` Robert Pluim 2020-10-19 19:03 ` Stephen Berman 2020-10-19 19:46 ` Eli Zaretskii 2020-10-19 22:00 ` Stephen Berman 2020-10-20 2:35 ` Eli Zaretskii 2020-10-20 7:33 ` Robert Pluim 2020-10-20 8:58 ` Robert Pluim 2020-10-20 14:28 ` Eli Zaretskii 2020-10-20 14:41 ` Robert Pluim 2020-10-19 19:03 ` Stefan Kangas 2020-10-19 19:32 ` Robert Pluim 2020-10-19 19:47 ` Eli Zaretskii 2021-11-06 19:00 ` Lars Ingebrigtsen
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