Date: Fri, 15 Sep 2017 17:52:37 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-standards@FreeBSD.org Subject: [Bug 191652] Text console - true color (24 bit, 16 million colors) support Message-ID: <bug-191652-15-3LNcUjXVVD@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-191652-15@https.bugs.freebsd.org/bugzilla/> References: <bug-191652-15@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D191652 --- Comment #2 from Anton Kochkov <anton.kochkov@gmail.com> --- Sorry for spamming, but now, 1 year after situation has changed and more programs/terminal emulators supports this mode (see my gist for periodical updates https://gist.github.com/XVilka/8346728 ) I would register the old comment if possible - or just feel free to remove = the old one. ----------------------------------------------- Currently, there is no support for the 24-bit colour descriptions in the terminfo/termcap database and utilites. See the discussion thread here: https://lists.gnu.org/archive/html/bug-ncurses/2013-10/msg00007.html Detection There's no reliable way, and ncurses/terminfo's maintainer expressed he has= no intent on introducing support. S-Lang author added a check for $COLORTERM containing either "truecolor" or "24bit" (case sensitive). In turn, VTE, Konsole and iTerm2 set this variable to "truecolor" (it's been there in VTE= for a while, it's relatively new and maybe still git-only in Konsole and iTerm2= ). This is obviously not a reliable method, and is not forwarded via sudo, ssh etc. However, whenever it errs, it errs on the safe side: does not advertise support whereas it's actually supported. App developers can freely choose to check for this same variable, or introduce their own method (e.g. an option= in their config file), whichever matches better the overall design of the given app. Checking $COLORTERM is recommended though, since that would lead to a = more unique desktop experience where the user has to set one variable only and it takes effect across all the apps, rather than something separately for each app. Here are terminals discussions: Now supporting truecolour st (from suckless) [delimeter: semicolon] - http://lists.suckless.org/dev/1307/16688.html konsole [delimeter: colon, semicolon] - https://bugs.kde.org/show_bug.cgi?id=3D107487 iterm2 [delimeter: colon, semicolon] - since v3 version qterminal [delimeter: semicolon] - https://github.com/qterminal/qterminal/issues/78 alacritty [delimeter: semicolon] - written in Rust kitty [delimeter: semicolon] - uses OpenGL cool-retro-term [delimeter: semicolon] Termux [delimeter: semicolon] - Android platform Black Screen [delimeter: semicolon] - crossplatform, HTML/CSS/JS-based Hyper.app [delimeter: semicolon] - crossplatform, HTML/CSS/JS-based (Electron) hterm - HTML/CSS/JS-based (ChromeOS) Tera Term [delimeter: colon, semicolon] - Windows platform ConEmu [delimeter: semicolon] - Windows platform FinalTerm [delimeter: semicolon] - abandoned, iTerm2 borrowing it's ide= as and features. MacTerm [delimeter: semicolon] - Mac OS X platform mintty [delimeter: semicolon] Cygwin and MSYS/MSYS2 since commit https://github.com/mintty/mintty/commit/43f0ed8a46c6549cb9a3ea27abc057b5abe= 13bdb (2.0.1 release) - Windows platform Windows 10 bash console, since Windows Insiders build 14931 all libvte based terminals (since 0.36 version) [delimeter: colon, semilocon] - https://bugzilla.gnome.org/show_bug.cgi?id=3D704449 libvte-based Gnome Terminal libvte-based sakura libvte-based xfce4-terminal - since 0.6.90 release, if compiled with GTK+3 libvte-based Terminator - since 1.90 release libvte-based Tilix - written in D. Similar user interface as for Terminator. libvte-based Lilyterm - since commit https://github.com/Tetralet/LilyTerm/commit/72536e7ba448ad9ef1126ce45fbde3a= 3407a271b libvte-based ROXTerm libvte-based evilvte - no release yet, version from git https://github.com/caleb-/evilvte libvte-based Termit libvte-based Termite libvte-based Tilda libvte-based tinyterm libvte-based Pantheon Terminal libvte-based lxterminal - with --enable-gtk3 configure flag. But there are bunch of libvte-based terminals for GTK2 so they are listed in the another section. Also, while this one is not exactly a terminal, but a terminal replayer, it still worth mentioning: asciinema player: https://github.com/asciinema/asciinema-player Improper support for true colors mlterm - build with --with-gtk=3D3.0 configure flag - approximates colo= rs to 512 embedded palette https://sourceforge.net/p/mlterm/bugs/74/ Parsing ANSI colour sequences, but approximating them to 256 palette xterm (though doing it wrong: "it uses nearest colour in RGB colour spa= ce, with a usualfalse assumption about orthogonal axes") urxvt aka rxvt-unicode - since Revision 1.570 http://lists.schmorp.de/pipermail/rxvt-unicode/2016q2/002261.html (Note the= re is a restriction of colors count at once still) linux console (since v3.16): https://github.com/torvalds/linux/commit/cec5b2a97a11ade56a701e83044d0a2a98= 4c67b4 Note about colour differences: a) RGB axes are not orthogonal, so you cannot use sqrt(R^2+G^2+B^2) formula, b) for colour differences there is more corr= ect (but much more complex) CIEDE2000 formula (which may easily blow up perform= ance if used blindly) [2]. [2] https://github.com/neovim/neovim/issues/793#issuecomment-48106948 Terminal multiplexers tmux - starting from version 2.2 (support since 427b820...) screen - has support in 'master' branch, need to be enabled (see 'truecolor' option) pymux - tmux clone in pure Python (to enable truecolour run pymux with --truecolor option) dvtm - not yet supporting True Colour https://github.com/martanne/dvtm/issues/10 NOT supporting truecolour Terminology (Enlightenment) - https://phab.enlightenment.org/T746 mosh (Mobile SHell) - https://github.com/mobile-shell/mosh/issues/649 mrxvt (looks abandoned) - https://sourceforge.net/p/materm/feature-requests/41/ aterm (looks abandoned) - https://sourceforge.net/p/aterm/feature-requests/23/ fbcon (from linux kernel) - https://bugzilla.kernel.org/show_bug.cgi?id=3D79551 FreeBSD console - https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D1= 91652 yaft framebuffer terminal - https://github.com/uobikiemukot/yaft/issues= /12 PuTTY (patched version [3] {xterm-like approximation to 256 colors} and= [4] {real true colors} available) - Windows platform KiTTY - Windows platform MTPuTTY - Windows platform mRemoteNG - Windows platform - https://github.com/mRemoteNG/mRemoteNG/issues/717 ConnectBot - https://github.com/connectbot/connectbot/pull/531 - Android platform JuiceSSH - Adroid platform, closed source Termius - Linux, Windows, OS X platforms, closed source SmarTTY - Windows platform - closed source (sent them a request) Netsarang XShell - closed source (sent them an email) MobaXterm Windows platform - closed source (sent them an email) libvte and GTK2 - based: libvte-based GTKTerm2 libvte-based stjerm (looks abandoned) - https://github.com/stjerm/stjerm/issues/39 [3] You can download patched version here https://github.com/rdebath/PuTTY [4] You can download patched version here https://github.com/chrisbra/putty/commits/truecolor (based on the patches f= rom https://github.com/halcy/PuTTY ) Here are another console programs discussions: Supporting True Colour: Eternal Terminal - automatically reconnecting shell mc - since 682a5.... See also ticket #3724 for truecolor themes. irssi - since PR #48 neovim - since commit 8dd415e887923f99ab5daaeba9f0303e173dd1aa; need to= set termguicolors to enable true color. vim - (from 7.4.1770) since commit 8a633e3427b47286869aa4b96f2bfc1fe65b25cd; need to set termguicolors to enab= le true color. emacs - since commit e463e57..., require custom terminfo elinks - configure.in:1410 (./configure --enable-true-color) s-lang library - (since pre2.3.1-35, for 64bit systems) timg - Terminal Image Viewer tv - tool to quickly view high-resolution multi-band imagery directly in terminal termimage - terminal image viewer explosion - terminal image viewer ls-icons - fork of coreutils with ls program that supports icons mpv - video player with support of console-only output (since https://github.com/mpv-player/mpv/commit/dd02369c3223fda5bcb2658b15404d4323= 2bb38f) radare2 - reverse engineering franework; since be46b9... commit. Not supporting True Colour: mutt - http://dev.mutt.org/trac/ticket/3674 neomutt - https://github.com/neomutt/neomutt/issues/85 ncurses library - https://lists.gnu.org/archive/html/bug-ncurses/2013-10/msg00007.html termbox library - https://github.com/nsf/termbox/issues/37 mcabber - https://bitbucket.org/McKael/mcabber-crew/issue/126/support-for-true-color-= 16-millions-colors tig - https://github.com/jonas/tig/issues/227 joe - https://sourceforge.net/p/joe-editor/patches/116/ --=20 You are receiving this mail because: You are the assignee for the bug.=
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