Allocate the IO-buffer dynamically on the heap for every pty object to avoid 4KB objects on the stack. This may not be a problem now but we might get stack overflows later if we continue to use such huge arrays on the stack. This doesn't affect the runtime performance as the buffer is still allocated only once on pty-creation. Signed-off-by: David Herrmann <dh.herrmann@googlemail.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 - xproto (build time dependency): definition of key symbols - libxkbcommon: keyboard handling (optional but strongly recommended) Without libxkbcommon, basic US-ASCII input is provided. - 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.
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