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The Servo Browser Engine
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Martin Robinson 0553789d48
fonts: Instantiate system fonts using system font loaders (#33747) 
System fonts used to be instantiated using the system font loader and
this change restores that behavior. In addition, on macOS and FreeType
platforms font data for system fonts is loaded using memory mapping. The
benefit is that system font loaders typically are able to cache fonts in
system memory (using memory mapping, for instance) and we'd like to load
them in a the way most compatible with other applications.

On my Linux system, this manages to get the overhead of loading a very
large font down from 10ms to approximately 1ms. Subsequent runs show
even less overhead. We've measured similar gains on macOS systems.

Currently, system font data must be loaded into memory manually for
canvas and this is unlikely to change even with a switch to `vello`. The
use of explicit memmory mapping should help in this case -- though it
probably won't be possible to use this properly on macOS and Windows if
we ever want to load fonts from TTCs properly.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
Co-authored-by: Mukilan Thiyagarajan <mukilan@igalia.com>
2024-10-10 23:09:51 +00:00
.cargo Make crown optional (#32494) 2024-06-24 11:46:43 +00:00
.github Use --break-system-packages when running pip in the WPT export job (#33749) 2024-10-09 16:16:09 +00:00
.vscode Format toml files (#30112) 2023-08-17 15:07:43 +00:00
components fonts: Instantiate system fonts using system font loaders (#33747) 2024-10-10 23:09:51 +00:00
docs Update in-tree docs to point to the new book (#32743) 2024-07-09 15:42:00 +00:00
etc Upgrade Android Gradle (#33681) 2024-10-09 05:25:22 +00:00
ports/servoshell Replace some Point2D::new(0, 0) instances with Point2D::zero() (#33783) 2024-10-10 18:20:51 +00:00
python fix possible IndexError (#33750) 2024-10-10 09:49:24 +00:00
resources crypto: Begin SubtleCrypto implementation (#33628) 2024-10-08 03:51:08 +00:00
support Upgrade Android Gradle (#33681) 2024-10-09 05:25:22 +00:00
tests layout: Handle inline margins in layout_for_block_content_size() (#33780) 2024-10-10 20:45:18 +00:00
third_party Update WebIDL.py (#32495) 2024-06-15 04:22:42 +00:00
.clang-format Run test-tidy on Windows 2019-11-21 09:56:39 +01:00
.flake8 Improve formatting of Python files (#30919) 2023-12-24 23:58:37 +00:00
.gitattributes openharmony: add servoshell for ohos (#33295) 2024-09-20 08:20:27 +00:00
.gitignore Add initial support for tracing and tracing-perfetto (#33188) 2024-09-04 08:24:29 +00:00
.mailmap Update Tetsuharu OHZEKI's entry in mailmap 2019-11-15 00:46:45 +09:00
Cargo.lock fonts: Instantiate system fonts using system font loaders (#33747) 2024-10-10 23:09:51 +00:00
Cargo.toml fonts: Instantiate system fonts using system font loaders (#33747) 2024-10-10 23:09:51 +00:00
CLOBBER Add clobber mechanism 2017-05-08 16:19:56 +02:00
CODE_OF_CONDUCT.md Clarify the Code of Conduct (closes servo/servo.org#164) (#32835) 2024-07-23 09:12:03 +00:00
CONTRIBUTING.md Update in-tree docs to point to the new book (#32743) 2024-07-09 15:42:00 +00:00
deny.toml Upgrade to egui@0.29.1 and winit@0.30.5 (#33751) 2024-10-10 17:18:03 +00:00
Info.plist remove bhtml 2018-02-11 08:02:39 +01:00
LICENSE Update MPL license to https (part 1) 2018-11-19 14:46:43 +01:00
mach Make Android build optional on Nix (#31231) 2024-02-02 02:13:24 +00:00
mach.bat Make mach.bat request Python 3 2021-05-22 18:27:10 +09:00
PULL_REQUEST_TEMPLATE.md Minor pull request template cleanup 2018-12-08 13:11:37 -08:00
README.md Upgrade Android Gradle (#33681) 2024-10-09 05:25:22 +00:00
rust-toolchain.toml CI: Add separate Lint&Tidy check and remove test-tidy from linux (#33150) 2024-08-23 08:58:12 +00:00
rustfmt.toml mach: Do not use unstable rust for rustfmt (#31441) 2024-02-28 13:53:04 +00:00
SECURITY.md Update new issue URL in SECURITY.md (#31698) 2024-03-15 15:03:49 +00:00
servo-tidy.toml Upgrade to egui@0.29.1 and winit@0.30.5 (#33751) 2024-10-10 17:18:03 +00:00
servobuild.example Add OpenHarmony support to mach and CI (#32507) 2024-06-17 11:27:23 +00:00
shell.nix Nix: allow nix-shell without explicit path to shell.nix (#32035) 2024-04-17 07:02:31 +00:00
taplo.toml Format toml files (#30112) 2023-08-17 15:07:43 +00:00

README.md

The Servo Parallel Browser Engine Project

Servo is a prototype web browser engine written in the Rust language. It is currently developed on 64-bit macOS, 64-bit Linux, 64-bit Windows, 64-bit OpenHarmony, and Android.

Servo welcomes contribution from everyone. Check out The Servo Book to get started, or go to servo.org for news and guides.

Getting started

For more detailed build instructions, see the Servo book under Setting up your environment, Building Servo, Building for Android and Building for OpenHarmony.

macOS

  • Download and install python, Xcode, and brew
  • Install rustup: curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
  • Restart your shell to make sure cargo is available
  • Install the other dependencies: ./mach bootstrap
  • Build servoshell: ./mach build

Linux

  • Install curl and python:
    • Arch: sudo pacman -S --needed curl python python-pip
    • Debian, Ubuntu: sudo apt install curl python3-pip python3-venv
    • Fedora: sudo dnf install curl python3 python3-pip python3-devel
    • Gentoo: sudo emerge net-misc/curl dev-python/pip
  • Install rustup: curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
  • Restart your shell to make sure cargo is available
  • Install the other dependencies: ./mach bootstrap
  • Build servoshell: ./mach build

Windows

  • Download and install python, choco, and rustup
    • Be sure to select Quick install via the Visual Studio Community installer
  • In the Visual Studio Installer, ensure the following components are installed:
    • Windows 10 SDK (10.0.19041.0) (Microsoft.VisualStudio.Component.Windows10SDK.19041)
    • MSVC v143 - VS 2022 C++ x64/x86 build tools (Latest) (Microsoft.VisualStudio.Component.VC.Tools.x86.x64)
    • C++ ATL for latest v143 build tools (x86 & x64) (Microsoft.VisualStudio.Component.VC.ATL)
    • C++ MFC for latest v143 build tools (x86 & x64) (Microsoft.VisualStudio.Component.VC.ATLMFC)
  • Restart your shell to make sure cargo is available
  • Install the other dependencies: .\mach bootstrap
  • Build servoshell: .\mach build

Android

  • Ensure that the following environment variables are set:
    • ANDROID_SDK_ROOT
    • ANDROID_NDK_ROOT: $ANDROID_SDK_ROOT/ndk/26.2.11394342/ ANDROID_SDK_ROOT can be any directory (such as ~/android-sdk). All of the Android build dependencies will be installed there.
  • Install the latest version of the Android command-line tools to $ANDROID_SDK_ROOT/cmdline-tools/latest.
  • Run the following command to install the necessary components: 
    sudo $ANDROID_SDK_ROOT/cmdline-tools/latest/bin/sdkmanager --install
 "build-tools;34.0.00 \
 "emulator" \
 "ndk;26.2.11394342" \
 "platform-tools" \
 "platforms;android-33" \
 "system-images;android-33;google_apis;x86_64"
  • Follow the instructions above for the platform you are building on

OpenHarmony

  • Follow the instructions above for the platform you are building on to prepare the environment.
  • Depending on the target distribution (e.g. HarmonyOS NEXT vs pure OpenHarmony) the build configuration will differ slightly.
  • Ensure that the following environment variables are set
    • DEVECO_SDK_HOME (Required when targeting HarmonyOS NEXT)
    • OHOS_BASE_SDK_HOME (Required when targeting OpenHarmony)
    • OHOS_SDK_NATIVE (e.g. ${DEVECO_SDK_HOME}/default/openharmony/native or ${OHOS_BASE_SDK_HOME}/${API_VERSION}/native)
    • SERVO_OHOS_SIGNING_CONFIG: Path to json file containing a valid signing configuration for the demo app.
  • Review the detailed instructions at Building for OpenHarmony.
  • The target distribution can be modified by passing --flavor=<default|harmonyos> to `mach <build|package|install>.