0a5bf7bb28
This commit adds some needed terminal emulator infrastructure. We allow to "open" (and close) a vte object (resp. terminal object). We then create a pty pair, fork and exec a shell. We route input to the shell and draw its output to the console. We add callbacks for when - The buffer changes (through the vte object). We can then schedule a screen redraw. - The shell (child process) exits. We can then exit ourselves, start up a new shell, etc. There is not yet any real VTE processing, so we display raw escape codes and so on. However, this should provide immediate feedback for any further vte development, as we start to act like a real terminal emulator. Signed-off-by: Ran Benita <ran234@gmail.com>
= KMSCON =
Kmscon is a simple terminal emulator based on linux kernel mode setting (KMS).
It is an attempt to replace the in-kernel VT implementation with a userspace
console.
== Requirements ==
Kmscon requires the following software:
- libdrm: accessing the kernel graphics layer
- mesa: providing an OpenGL implementation (must be compiled with EGL, gbm
and GL libraries)
- udev: providing input device hotplug
- libxkbcommon: keyboard handling
- glib: only for Unicode handling
- One of:
- freetype2: drawing generic text
- pango: drawing text with pango (use --enable-pango)
Pango requires: glib, cairo, pangocairo, pango and freetype2
== Install ==
To compile the kmscon binary, run the standard autotools commands:
$ ./configure [--enable-debug] [--enable-pango]
$ make
$ make install
To compile the test applications, run:
$ make check
== License ==
This software is licensed under the terms of the MIT license. Please see
./COPYING for further information.
== FAQ ==
=== Why didn't you use libvte or similar terminal emulators? ===
All existing terminal emulators I found highly depend on X. Also, their code
base often is a horrible mess. I haven't had the time to convert them to use
other drawing functions than Xlib, yet.
If you feel like doing this work, please notify me. I would be glad to adjust
my code to work with other terminal emulators.
== Contact ==
This software is maintained by:
David Herrmann <dh.herrmann@googlemail.com>
If you have any questions, do not hesitate to contact one of the maintainers.
== Code Base ==
The kmscon code is split into several independent subsystems:
- output:
This code manages the KMS/DRI output and provides OpenGL framebuffers.
- console:
This draws the text on the screen and provides an API for any terminal
emulator to visualize its contents.
- eloop:
Main loop implementation.
- log:
Log file handling.
- unicode:
Provides basic Unicode handling.
- font:
Font loading, caching and drawing operations.
- input:
All linux input events are captured here and converted to Unicode
characters for input handling.
- vt:
The linux VT subsystem integration. This allows to run the application in
a classic linux VT like X does.
- vte:
The terminal emulator library.
- terminal:
Connects the console, output, input and vte handling into a real terminal.
- main:
This connects all subsystems into a usable console application.