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* Unify the Platforms: Cairo+FreeType+Harfbuzz Everywhere (except TTY)
@ 2020-05-17 10:41 Julius Pfrommer
  2020-05-17 14:09 ` Arthur Miller
  2020-05-17 14:35 ` Eli Zaretskii
  0 siblings, 2 replies; 145+ messages in thread
From: Julius Pfrommer @ 2020-05-17 10:41 UTC (permalink / raw)
  To: emacs-devel

Hi all,

during the recent discussion on "Emacs being too square", I recalled a
few projects that use OpenGL for terminal emulators [1,2]. With good
performance, smooth scrolling and the possibility to add more visual
*bling*.

I had a good look at Emacs' code-base to see if similar approaches
could be used. As you can imagine, I got lost in a forest of #ifdef for
different platforms and GUI toolkits. The code looks scary to touch. If
you don't have access to *all supported platform*, it is likely that
changes break a platform you could not test locally.

To make the code-base less scary, there should be more code-sharing
across GUI platforms. And this is indeed possible!

The GTK-based Emacs GUI can use Cairo for rendering. Cairo + FreeType +
HarfBuzz (calling it CFH for simplicity) is available for the other
supported platforms as well (besides pure TTY):

- GnuSTEP [http://wiki.gnustep.org/index.php/Backend]
- Raw Xlib [https://www.cairographics.org/Xlib/]
- Windows+MacOS [https://www.cairographics.org/download/]

Big portions of the platform-specific GUI code could be unified based on
the CFH libraries. Is a hard dependency on the CFH libraries imaginable?

Maybe one of the platforms is a "low-hanging fruit" to get things going.
As every major refactoring, there should be a series of small steps in
order to keep things stable.

Thank you for the hard work put into this amazing piece of software!

Regards, Julius

[1] https://sw.kovidgoyal.net/kitty/
[2] https://github.com/alacritty/alacritty



^ permalink raw reply	[flat|nested] 145+ messages in thread

end of thread, other threads:[~2020-05-27 19:19 UTC | newest]

Thread overview: 145+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2020-05-17 10:41 Unify the Platforms: Cairo+FreeType+Harfbuzz Everywhere (except TTY) Julius Pfrommer
2020-05-17 14:09 ` Arthur Miller
2020-05-17 14:30   ` Eli Zaretskii
2020-05-17 15:06     ` Arthur Miller
2020-05-17 15:56       ` Eli Zaretskii
2020-05-17 16:50         ` Arthur Miller
2020-05-17 17:06           ` Eli Zaretskii
2020-05-17 14:35 ` Eli Zaretskii
2020-05-17 14:59   ` Julius Pfrommer
2020-05-17 15:55     ` Eli Zaretskii
2020-05-17 16:28       ` Pip Cet
2020-05-17 17:00         ` Eli Zaretskii
2020-05-17 18:50           ` Pip Cet
2020-05-17 19:17             ` Eli Zaretskii
2020-05-18 16:08               ` Ligatures (was: Unify the Platforms: Cairo+FreeType+Harfbuzz Everywhere (except TTY)) Eli Zaretskii
2020-05-18 16:45                 ` tomas
2020-05-18 16:49                   ` Eli Zaretskii
2020-05-18 17:05                 ` Ligatures Stefan Monnier
2020-05-18 17:18                   ` Ligatures Eli Zaretskii
2020-05-18 19:19                     ` Ligatures Pip Cet
2020-05-18 19:25                       ` Ligatures tomas
2020-05-18 19:41                         ` Ligatures Pip Cet
2020-05-18 20:20                           ` Ligatures tomas
2020-05-18 19:33                       ` Ligatures Eli Zaretskii
2020-05-18 19:44                         ` Ligatures Clément Pit-Claudel
2020-05-19  2:25                           ` Ligatures Eli Zaretskii
2020-05-19  2:44                             ` Ligatures Clément Pit-Claudel
2020-05-19 13:59                               ` Ligatures Eli Zaretskii
2020-05-19 14:35                                 ` Ligatures Clément Pit-Claudel
2020-05-19 15:21                                   ` Ligatures Eli Zaretskii
2020-05-19 15:44                                     ` Ligatures Clément Pit-Claudel
2020-05-19 16:15                                       ` Ligatures Eli Zaretskii
2020-05-19 15:36                                 ` Ligatures Tassilo Horn
2020-05-19 16:08                                   ` Ligatures Eli Zaretskii
2020-05-19 16:14                                   ` Ligatures Stefan Monnier
2020-05-19  3:47                             ` Ligatures Stefan Monnier
2020-05-19  4:51                               ` Ligatures Clément Pit-Claudel
2020-05-18 19:38                       ` Ligatures Clément Pit-Claudel
2020-05-19 14:55                         ` Ligatures Pip Cet
2020-05-19 15:30                           ` Ligatures Clément Pit-Claudel
2020-05-19 15:52                             ` Ligatures Pip Cet
2020-05-18 17:24                   ` Ligatures tomas
2020-05-18 17:41                     ` Ligatures Eli Zaretskii
2020-05-18 19:07                       ` Ligatures tomas
2020-05-18 19:17                         ` Ligatures Eli Zaretskii
2020-05-18 20:33                     ` Ligatures Stefan Monnier
2020-05-18 17:31                 ` Ligatures (was: Unify the Platforms: Cairo+FreeType+Harfbuzz Everywhere (except TTY)) Clément Pit-Claudel
2020-05-18 17:39                   ` Eli Zaretskii
2020-05-18 19:01                     ` Clément Pit-Claudel
2020-05-18 19:15                       ` Eli Zaretskii
2020-05-18 19:18                       ` tomas
2020-05-18 20:37                       ` Ligatures Stefan Monnier
2020-05-18 21:59                       ` Ligatures (was: Unify the Platforms: Cairo+FreeType+Harfbuzz Everywhere (except TTY)) Alan Third
2020-05-19 13:56                         ` Eli Zaretskii
2020-05-19 14:39                           ` Clément Pit-Claudel
2020-05-19 21:43                             ` Pip Cet
2020-05-20  1:41                               ` Clément Pit-Claudel
2020-05-20  2:07                               ` Ligatures Stefan Monnier
2020-05-20  7:14                               ` Ligatures (was: Unify the Platforms: Cairo+FreeType+Harfbuzz Everywhere (except TTY)) tomas
2020-05-20 15:18                               ` Eli Zaretskii
2020-05-20 17:31                                 ` Clément Pit-Claudel
2020-05-20 18:01                                   ` Eli Zaretskii
2020-05-20 18:33                                     ` Clément Pit-Claudel
2020-05-20 18:49                                       ` Eli Zaretskii
2020-05-20 18:53                                         ` Clément Pit-Claudel
2020-05-20 19:02                                           ` Eli Zaretskii
2020-05-20 23:19                                   ` Ligatures Stefan Monnier
2020-05-21 10:01                                 ` Ligatures (was: Unify the Platforms: Cairo+FreeType+Harfbuzz Everywhere (except TTY)) Pip Cet
2020-05-21 14:11                                   ` Eli Zaretskii
2020-05-21 16:26                                     ` Pip Cet
2020-05-21 19:08                                       ` Eli Zaretskii
2020-05-21 20:51                                         ` Clément Pit-Claudel
2020-05-21 21:16                                           ` Pip Cet
2020-05-22  6:12                                             ` Eli Zaretskii
2020-05-22  9:25                                               ` Pip Cet
2020-05-22 11:23                                                 ` Eli Zaretskii
2020-05-22 12:52                                                   ` Pip Cet
2020-05-22 13:15                                                     ` Eli Zaretskii
2020-05-22 13:29                                                       ` Clément Pit-Claudel
2020-05-22 14:30                                                         ` Eli Zaretskii
2020-05-22 14:34                                                           ` Clément Pit-Claudel
2020-05-22 19:01                                                             ` Eli Zaretskii
2020-05-22 19:33                                                               ` Clément Pit-Claudel
2020-05-22 19:44                                                                 ` Eli Zaretskii
2020-05-22 20:02                                                                   ` Clément Pit-Claudel
     [not found]                                                                     ` <83mu5z171j.fsf@gnu.org>
2020-05-23 14:34                                                                       ` Clément Pit-Claudel
2020-05-23 16:18                                                                         ` Eli Zaretskii
2020-05-23 16:37                                                                           ` Clément Pit-Claudel
2020-05-22 13:56                                                       ` Pip Cet
     [not found]                                                         ` <83lflj16jn.fsf@gnu.org>
     [not found]                                                           ` <AF222EA0-FE05-4224-8459-2BF82CE27266@vasilij.de>
     [not found]                                                             ` <834ks7110w.fsf@gnu.org>
2020-05-23 11:24                                                               ` Vasilij Schneidermann
2020-05-23 13:04                                                                 ` Eli Zaretskii
     [not found]                                                           ` <83eerb145r.fsf@gnu.org>
     [not found]                                                             ` <CAOqdjBeef8Fa596raEyBUwv0Zr+41LSiYvHW39EdoaXpyxCXVw@mail.gmail.com>
     [not found]                                                               ` <831rnb0zld.fsf@gnu.org>
2020-05-23 12:36                                                                 ` Pip Cet
2020-05-23 14:08                                                                   ` Eli Zaretskii
2020-05-23 15:13                                                                     ` Pip Cet
2020-05-23 16:34                                                                       ` Eli Zaretskii
2020-05-23 22:38                                                                         ` Pip Cet
2020-05-24 15:33                                                                           ` Eli Zaretskii
2020-05-26 18:13                                                                             ` Pip Cet
2020-05-26 19:46                                                                               ` Eli Zaretskii
2020-05-27  9:36                                                                                 ` Pip Cet
2020-05-27 17:13                                                                                   ` Eli Zaretskii
2020-05-27 18:42                                                                                     ` Pip Cet
2020-05-27 19:19                                                                                       ` Eli Zaretskii
2020-05-23 17:32                                                                       ` Eli Zaretskii
2020-05-23 21:29                                                                         ` Pip Cet
2020-05-24 15:19                                                                           ` Eli Zaretskii
2020-05-23 12:47                                                                 ` Ligatures Stefan Monnier
2020-05-23 13:10                                                                   ` Ligatures Eli Zaretskii
2020-05-23 13:45                                                                     ` Ligatures Stefan Monnier
2020-05-23 14:12                                                                       ` Ligatures Eli Zaretskii
2020-05-23 13:36                                                                   ` Ligatures 조성빈
2020-05-23 14:15                                                                     ` Ligatures Stefan Monnier
2020-05-23 14:37                                                                   ` Ligatures Pip Cet
2020-05-22 11:44                                           ` Ligatures (was: Unify the Platforms: Cairo+FreeType+Harfbuzz Everywhere (except TTY)) Eli Zaretskii
2020-05-22 13:26                                             ` Clément Pit-Claudel
2020-05-22 14:29                                               ` Eli Zaretskii
2020-05-22 14:32                                                 ` Clément Pit-Claudel
2020-05-22 19:00                                                   ` Eli Zaretskii
2020-05-21 21:06                                         ` Pip Cet
2020-05-22  6:06                                           ` Eli Zaretskii
2020-05-22  9:34                                             ` Pip Cet
2020-05-22 11:33                                               ` Eli Zaretskii
2020-05-19 20:26                           ` Alan Third
2020-05-19 10:09                   ` Trevor Spiteri
2020-05-19 14:22                     ` Eli Zaretskii
2020-05-19  5:43                 ` Ligatures ASSI
2020-05-19  7:22                   ` Ligatures tomas
2020-05-19  7:55                     ` Ligatures Joost Kremers
2020-05-19  8:07                       ` Ligatures tomas
2020-05-19 10:17                         ` Ligatures Yuri Khan
2020-05-19 14:26                           ` Ligatures Eli Zaretskii
2020-05-19 19:00                             ` Ligatures Yuri Khan
2020-05-19 10:43                         ` Ligatures Werner LEMBERG
2020-05-19 10:48                           ` Ligatures tomas
2020-05-19 14:18                   ` Ligatures Eli Zaretskii
2020-05-19 14:52                     ` Ligatures Eli Zaretskii
2020-05-19 15:11                       ` Ligatures Pip Cet
2020-05-19 15:36                         ` Ligatures Eli Zaretskii
2020-05-19 16:16                           ` Ligatures Pip Cet
2020-05-19 16:41                             ` Ligatures Eli Zaretskii
2020-05-19 17:00                             ` Ligatures Eli Zaretskii
2020-05-17 18:28       ` Unify the Platforms: Cairo+FreeType+Harfbuzz Everywhere (except TTY) Julius Pfrommer
2020-05-17 18:45         ` Eli Zaretskii
2020-05-17 22:28         ` chad
2020-05-18 22:08         ` Alan Third

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