servo/src

Descriptions of the Servo source directories. For the most part these represent a single crate or library.

Servo components

• components/gfx: Graphics rendering, fonts, and text shaping.
• components/main: The top-level Servo crate. Contains compositing, DOM, layout, and script.
• components/net: Networking, caching, image decoding.
• components/util: Various utility functions used by other Servo components.

The Rust compiler

• compiler/rust: The Rust compiler.

Supporting libraries

These libraries are used in all Servo ports. In keeping with Servo's philosophy of modularity, they are designed to be useful in other Rust projects.

• support/azure: A cross-platform 2D drawing library from the Mozilla project. Azure can render with Direct2D, Core Graphics (Quartz), Skia, and Cairo.
• support/css: A general CSS parsing and selector matching library. This abstraction layer exists to prevent libcss internals from leaking into Servo.
• support/geom: A simple Euclidean geometry and linear algebra library.
• support/glut: Bindings to the GLUT windowing framework. This bare-bones windowing framework is useful for testing the engine without browser chrome.
• support/harfbuzz: A mature Unicode- and OpenType-aware text shaping library, used by many rendering engines and toolkits.
• support/http-client: An HTTP client library for Rust.
• support/hubbub: The HTML parser from the NetSurf project. This is a temporary solution for HTML parsing until a pure-Rust solution is available.
• support/layers: A simple GPU-accelerated 2D scene graph library, somewhat similar to libraries like Clutter.
• support/libparserutils: A parsing library used by hubbub and netsurfcss.
• support/netsurfcss: The CSS library from the NetSurf project. This is a temporary stopgap for CSS parsing until a pure-Rust solution is available.
• support/opengles: Bindings to OpenGL ES 2.0.
• support/png: Bindings to libpng.
• support/sharegl: A library for sharing OpenGL or Direct3D textures between processes.
• support/skia: Google's accelerated 2D rendering library.
• support/spidermonkey: Mozilla's JavaScript engine.
• support/stb-image: A minimalist image decoding library. This is a temporary stopgap for image decoding until a higher-performance solution is available.
• support/wapcaplet: A string storage library used by hubbub and netsurfcss.

Platform-specfic bindings

Linux

• platform/linux/rust-fontconfig: Bindings to the freedesktop.org fontconfig library.
• platform/linux/rust-freetype: Bindings to the FreeType library.
• platform/linux/rust-xlib: Bindings to the X Window System libraries.

Mac

• platform/macos/rust-cocoa: General Cocoa bindings.
• platform/macos/rust-core-foundation: Bindings to Core Foundation.
• platform/macos/rust-core-graphics: Bindings to Core Graphics/Quartz.
• platform/macos/rust-core-text: Bindings to Core Text.
• platform/macos/rust-io-surface: Bindings to the IOSurface library.

Tests

• test/harness/contenttest: JavaScript test runner.
• test/harness/reftest: Reference (layout) test runner.
• test/html: Test cases.

Miscellaneous

• etc: Various scripts and files that don't belong anywhere else.
• etc/patches: Patches for upstream libraries.