Top 7 sixel-graphic Open-Source Projects
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InfluxDB
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terminal-good-image-protocol
*Good* Image Protocol - a formalization of a proposal for a new image protocol for virtual terminal emulators
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SaaSHub
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In XTerm, this (rightly) makes no difference. In Foot and Contour however, you still end up a line resp. a screen below where you started, if now with the correct horizontal position.
So it seems to me like what you want should work by default, except it doesn’t.
It should be possible to instead just treat the whole thing as a graphical overlay (by computing or directly asking for the character cell size, as Kirill Panov rightly admonishes me is possible with XTWINOPS) without touching the cursor; that’s what the “sixel scrolling” setting (DECSDM) is supposed to do. Then you can just manually move the cursor forward however many positions after you’re done drawing.
Except apparently the DEC manual (the VT330/340 one above) and DEC hardware contradict each other as to which setting of DECSDM (set or reset) corresponds to which scrolling state (enabled or disabled), and XTerm has implemented it according to the manual not the VT3xx[1,2,3]—then most other emulators followed suit[4]—then XTerm switched to following the hardware[5,6] (unless you and that’s what I’m seeing on my machine right now. So now you need to check if you’re on XTerm ≥ 369 or not[7]. If I’m reading the Notcurses code right, other terminals have followed suit[8].
Again, ouch.
P.S. It seems DEC had an internal doc for how their terminals should operate (DEC STD 070) [9]. It does not document DECSDM at all.
[1] https://github.com/wez/wezterm/issues/217#issuecomment-86449...
[2] https://github.com/hackerb9/lsix/issues/41
[3] https://github.com/dankamongmen/notcurses/issues/1782
[4] https://github.com/arakiken/mlterm/pull/23
[5] https://invisible-island.net/xterm/xterm.log.html#xterm_369
[6] https://invisible-island.net/xterm/ctlseqs/ctlseqs.html#h3-T...
[7] https://github.com/dankamongmen/notcurses/commit/0918fa251e2... (the correct version cutoff is 369 not 359, the patch contains a now-fixed bug)
[8] https://github.com/dankamongmen/notcurses/blob/master/src/li... (look for mentions of invertsixel)
[9] http://www.bitsavers.org/pdf/dec/standards/EL-SM070-00_DEC_S...
Project mention: Neovide – a simple, no-nonsense, cross-platform GUI for Neovim | news.ycombinator.com | 2024-01-31Another problem is that the cursor moves while the screen is buffer is being rendered. The location is only really known once the cursor settles in the same place for some time, which is unacceptable in terms of latency.
The synchronized output extension could be used to do this, though. https://github.com/contour-terminal/contour/blob/master/docs...
termimg (godoc) (test images) automatically chooses a drawing method that works best for the terminal (in most cases the current one). A Terminal capable of displaying sixel graphics is recommended but not required. Alternative display protocols (iTerm2, kitty, Terminology, DomTerm) or drawing directly into the window/background (X11, GDI+, urxvt) are used. Terminal multiplexers (tmux, screen, ...) are currently only being checked for, later positioning in the panes seems doable (tmux, not screen).
sixel-graphics related posts
Index
What are some of the best open-source sixel-graphic projects? This list will help you:
| Project | Stars | |
|---|---|---|
| 1 | lsix | 3,080 |
| 2 | contour | 2,233 |
| 3 | rasterm | 57 |
| 4 | termimg | 55 |
| 5 | toyterm | 42 |
| 6 | upp-components | 36 |
| 7 | terminal-good-image-protocol | 32 |
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