Truly independent web browser
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Jelle Raaijmakers bd2f206dbc LibGfx+LibWeb: Convert bitmap alpha type when creating ImmutableBitmaps
When decoding data into bitmaps, we end up with different alpha types
(premultiplied vs. unpremultiplied color data). Unfortunately, Skia only
seems to handle premultiplied color data well when scaling bitmaps with
an alpha channel. This might be due to Skia historically only supporting
premultiplied color blending, with unpremultiplied support having been
added more recently.

When using Skia to blend bitmaps, we need the color data to be
premultiplied. ImmutableBitmap gains a new method to enforce the alpha
type to be used, which is now used by SharedResourceRequest and
CanvasRenderingContext2D to enforce the right alpha type.

Our LibWeb tests actually had a couple of screenshot tests that exposed
the graphical glitches caused by Skia; see the big smiley faces in the
CSS backgrounds tests for example. The failing tests are now updated to
accommodate the new behavior.

Chromium and Firefox both seem to apply the same behavior; e.g. they
actively decode PNGs (which are unpremultiplied in nature) to a
premultiplied bitmap.

Fixes #3691.
2025-03-22 13:38:14 +01:00
.devcontainer Devcontainer: Set VCPKG_FORCE_SYSTEM_BINARIES when building cache 2025-02-18 15:33:51 -07:00
.github CI: Add js-benchmarks workflow 2025-03-22 13:05:43 +01:00
AK CMake: Remove unused CMake functions 2025-03-20 11:36:09 -06:00
Base/res LibWeb+LibWebView+WebContent: Add an about:processes page 2025-03-19 10:03:17 -04:00
Documentation Documentation: Update build instructions to remove -GXcode suggestion 2025-03-19 20:42:16 -04:00
Libraries LibGfx+LibWeb: Convert bitmap alpha type when creating ImmutableBitmaps 2025-03-22 13:38:14 +01:00
Meta CMake: Remove unused CMake functions 2025-03-20 11:36:09 -06:00
Services LibGfx+ImageDecoder: Use RefPtr<Bitmap> instead of optional 2025-03-22 13:33:01 +01:00
Tests LibGfx+LibWeb: Convert bitmap alpha type when creating ImmutableBitmaps 2025-03-22 13:38:14 +01:00
Toolchain Nix: Change incorrect package name in /Toolchain/Nix/shell.nix 2025-03-16 15:30:33 -06:00
UI UI: Show "Disable" title in DevTools disable button 2025-03-20 17:44:07 -04:00
Utilities LibDNS: Ensure non-blocking socket is used for TCP connections 2025-02-22 18:39:58 +01:00
.clang-format
.clang-tidy Meta: Disable clang-tidy “implicit-bool-conversion” check 2025-01-24 09:25:37 +01:00
.clangd Meta: Change the default build directories to exclude "ladybird" prefix 2024-11-06 10:38:57 -07:00
.editorconfig
.gitattributes LibGfx: Remove support for the various "portable" image formats 2024-06-17 21:57:35 +02:00
.gitignore Everywhere: Hoist the Libraries folder to the top-level 2024-11-10 12:50:45 +01:00
.gn Meta: Automatically generate a compilation database for clangd 2023-11-14 14:29:35 -05:00
.mailmap Meta: Update my e-mail address everywhere 2024-10-04 13:19:50 +02:00
.pre-commit-config.yaml Meta: Replace deprecated pre-commit stage name 2024-10-18 09:40:59 +02:00
.prettierignore Everywhere: Hoist the Libraries folder to the top-level 2024-11-10 12:50:45 +01:00
.prettierrc
.swift-format Meta: Add swift-format configuration 2024-07-30 18:38:02 -06:00
.ycm_extra_conf.py Meta: Make YCM return flags as Python list 2024-07-06 14:50:43 -06:00
CMakeLists.txt Meta: Link with OpenSSL explicitly 2025-02-17 12:36:26 +01:00
CMakePresets.json CMake: Ensure build and test presets for Distribution and Debug 2025-02-21 12:05:18 +01:00
CODE_OF_CONDUCT.md Meta: Add code of conduct (from the Ruby community) 2024-10-02 09:49:52 +02:00
CONTRIBUTING.md Meta: Switch to clang-format-19 as the standard formatter 2024-12-28 05:39:32 -08:00
flake.lock Nix: Remove flake-utils from inputs 2025-03-04 08:19:54 -07:00
flake.nix Nix: Expose ladybird package in flake; reuse in shell 2025-03-04 08:19:54 -07:00
ISSUES.md Docs: Add info about --enable-idl-tracing flag 2025-01-15 13:25:35 +00:00
LICENSE Meta: Update license year 2025-02-10 11:40:57 +00:00
README.md Libraries: Remove LibArchive 2024-11-25 13:37:45 +01:00
SECURITY.md Documentation: Make updates to align better with new issue template 2024-10-31 09:18:08 +01:00
shell.nix Nix: Fix OpenGL linking issue in the devshell 2025-02-05 13:41:45 -07:00
vcpkg-configuration.json Meta: Add overlay port for vulkan-loader 2024-07-07 15:56:59 +02:00
vcpkg.json Meta: Add explicit vcpkg dependency for zlib 2025-03-19 13:46:50 +01:00

Ladybird

Ladybird is a truly independent web browser, using a novel engine based on web standards.

Important

Ladybird is in a pre-alpha state, and only suitable for use by developers

Features

We aim to build a complete, usable browser for the modern web.

Ladybird uses a multi-process architecture with a main UI process, several WebContent renderer processes, an ImageDecoder process, and a RequestServer process.

Image decoding and network connections are done out of process to be more robust against malicious content. Each tab has its own renderer process, which is sandboxed from the rest of the system.

At the moment, many core library support components are inherited from SerenityOS:

  • LibWeb: Web rendering engine
  • LibJS: JavaScript engine
  • LibWasm: WebAssembly implementation
  • LibCrypto/LibTLS: Cryptography primitives and Transport Layer Security
  • LibHTTP: HTTP/1.1 client
  • LibGfx: 2D Graphics Library, Image Decoding and Rendering
  • LibUnicode: Unicode and locale support
  • LibMedia: Audio and video playback
  • LibCore: Event loop, OS abstraction layer
  • LibIPC: Inter-process communication

How do I build and run this?

See build instructions for information on how to build Ladybird.

Ladybird runs on Linux, macOS, Windows (with WSL2), and many other *Nixes.

How do I read the documentation?

Code-related documentation can be found in the documentation folder.

Get in touch and participate!

Join our Discord server to participate in development discussion.

Please read Getting started contributing if you plan to contribute to Ladybird for the first time.

Before opening an issue, please see the issue policy and the detailed issue-reporting guidelines.

The full contribution guidelines can be found in CONTRIBUTING.md.

License

Ladybird is licensed under a 2-clause BSD license.