mirror of
https://github.com/wez/wezterm.git
synced 2024-12-23 13:21:38 +03:00
58a2a30623
I'm experimenting with using cairo's 2D graphics for glyph related drawing operations, and perhaps more stuff in the UI in the future. The challenge is that no one has yet encapsulated its build in a cargo-friendly way. This commit is that attempt. The strategy is this: * `deps/cairo` is ostensibly the same thing as https://github.com/gtk-rs/gtk-rs-core/tree/master/cairo/sys which is the cairo-sys-rs crate * Its build.rs has been replaced with a version that builds from the C sources that are found in-tree; it will never look for the system cairo library * A pair of scripts to import pixman (a required dep of cairo) and cairo itself in a repeatable way are include, for if/when we need to update the vendored sources Cairo is a mature library and doesn't release very often. * The workspace sets a patch for crates.io so that cairo-rs has its cairo-sys-rs dep redirected to the local build. I'm not planning to upstream this stuff to gtk-rs-core as full cairo depends on a lot more things than are dealt with here, so it would be a PITA to handle that generally. This vendoring strips out things that are not used, so the cairo library that remains: * Is not internally thread safe; no TLS or mutex support is enabled in either of them. That's fine because the high level cairo-rs wrapper is not Send+Sync, which means that rust will only allow it to be used single threaded anyway. * Only has the basic recording and image surfaces * No platform support for win32/xlib/xcb and so on |
||
---|---|---|
.. | ||
pixman | ||
a64-neon-test.S | ||
arm-simd-test.S | ||
AUTHORS | ||
ChangeLog | ||
config.h.in | ||
COPYING | ||
depcomp | ||
INSTALL | ||
install-sh | ||
Makefile.am | ||
Makefile.in | ||
Makefile.win32 | ||
Makefile.win32.common | ||
meson_options.txt | ||
meson.build | ||
missing | ||
neon-test.S | ||
NEWS | ||
pixman-1-uninstalled.pc.in | ||
pixman-1.pc.in | ||
README | ||
test-driver |
Pixman ====== Pixman is a library that provides low-level pixel manipulation features such as image compositing and trapezoid rasterization. Questions should be directed to the pixman mailing list: https://lists.freedesktop.org/mailman/listinfo/pixman You can also file bugs at https://gitlab.freedesktop.org/pixman/pixman/-/issues/new or submit improvements in form of a Merge Request via https://gitlab.freedesktop.org/pixman/pixman/-/merge_requests For real time discussions about pixman, feel free to join the IRC channels #cairo and #xorg-devel on the FreeNode IRC network. Contributing ------------ In order to contribute to pixman, you will need a working knowledge of the git version control system. For a quick getting started guide, there is the "Everyday Git With 20 Commands Or So guide" https://www.kernel.org/pub/software/scm/git/docs/everyday.html from the Git homepage. For more in depth git documentation, see the resources on the Git community documentation page: https://git-scm.com/documentation Pixman uses the infrastructure from the freedesktop.org umbrella project. For instructions about how to use the git service on freedesktop.org, see: https://www.freedesktop.org/wiki/Infrastructure/git/Developers The Pixman master repository can be found at: https://gitlab.freedesktop.org/pixman/pixman Sending patches --------------- Patches should be submitted in form of Merge Requests via Gitlab. You will first need to create a fork of the main pixman repository at https://gitlab.freedesktop.org/pixman/pixman via the Fork button on the top right. Once that is done you can add your personal repository as a remote to your local pixman development git checkout: git remote add my-gitlab git@gitlab.freedesktop.org:YOURUSERNAME/pixman.git git fetch my-gitlab Make sure to have added ssh keys to your gitlab profile at https://gitlab.freedesktop.org/profile/keys Once that is set up, the general workflow for sending patches is to create a new local branch with your improvements and once it's ready push it to your personal pixman fork: git checkout -b fix-some-bug ... git push my-gitlab The output of the `git push` command will include a link that allows you to create a Merge Request against the official pixman repository. Whenever you make changes to your branch (add new commits or fix up commits) you push them back to your personal pixman fork: git push -f my-gitlab If there is an open Merge Request Gitlab will automatically pick up the changes from your branch and pixman developers can review them anew. In order for your patches to be accepted, please consider the following guidelines: - At each point in the series, pixman should compile and the test suite should pass. The exception here is if you are changing the test suite to demonstrate a bug. In this case, make one commit that makes the test suite fail due to the bug, and then another commit that fixes the bug. You can run the test suite with make check if you built pixman with autotools or meson test -C builddir if you built pixman with meson. It will take around two minutes to run on a modern PC. - Follow the coding style described in the CODING_STYLE file - For bug fixes, include an update to the test suite to make sure the bug doesn't reappear. - For new features, add tests of the feature to the test suite. Also, add a program demonstrating the new feature to the demos/ directory. - Write descriptive commit messages. Useful information to include: - Benchmark results, before and after - Description of the bug that was fixed - Detailed rationale for any new API - Alternative approaches that were rejected (and why they don't work) - If review comments were incorporated, a brief version history describing what those changes were. - For big patch series, write an introductory post with an overall description of the patch series, including benchmarks and motivation. Each commit message should still be descriptive and include enough information to understand why this particular commit was necessary. Pixman has high standards for code quality and so almost everybody should expect to have the first versions of their patches rejected. If you think that the reviewers are wrong about something, or that the guidelines above are wrong, feel free to discuss the issue. The purpose of the guidelines and code review is to ensure high code quality; it is not an exercise in compliance.