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diff --git a/gfx/wr/README.md b/gfx/wr/README.md new file mode 100644 index 0000000000..6162a5f86b --- /dev/null +++ b/gfx/wr/README.md @@ -0,0 +1,53 @@ +# WebRender + +[](https://crates.io/crates/webrender) + +WebRender is a GPU-based 2D rendering engine written in [Rust](https://www.rust-lang.org/). [Firefox](https://www.mozilla.org/firefox), the research web browser [Servo](https://github.com/servo/servo), and other GUI frameworks draw with it. It currently uses the OpenGL API internally. + +Note that the canonical home for this code is in gfx/wr folder of the +mozilla-central repository at https://hg.mozilla.org/mozilla-central. The +Github repository at https://github.com/servo/webrender should be considered +a downstream mirror, although it contains additional metadata (such as Github +wiki pages) that do not exist in mozilla-central. Pull requests against the +Github repository are still being accepted, although once reviewed, they will +be landed on mozilla-central first and then mirrored back. If you are familiar +with the mozilla-central contribution workflow, filing bugs in +[Bugzilla](https://bugzilla.mozilla.org/enter_bug.cgi?product=Core&component=Graphics%3A%20WebRender) +and submitting patches there would be preferred. + +## Update as a Dependency +After updating shaders in WebRender, go to servo and: + + * Go to the servo directory and do ./mach update-cargo -p webrender + * Create a pull request to servo + + +## Use WebRender with Servo +To use a local copy of WebRender with servo, go to your servo build directory and: + + * Edit Cargo.toml + * Add at the end of the file: + +``` +[patch."https://github.com/servo/webrender"] +"webrender" = { path = "<path>/webrender" } +"webrender_api" = { path = "<path>/webrender_api" } +``` + +where `<path>` is the path to your local copy of WebRender. + + * Build as normal + +## Documentation + +The Wiki has a [few pages](https://github.com/servo/webrender/wiki/) describing the internals and conventions of WebRender. + +## Testing + +Tests run using OSMesa to get consistent rendering across platforms. + +Still there may be differences depending on font libraries on your system, for +example. + +See [this gist](https://gist.github.com/finalfantasia/129cae811e02bf4551ac) for +how to make the text tests useful in Fedora, for example. |