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Truly independent web browser
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Nico Weber 1dfd68c798 LibGfx/JPEGWriter: Make it possible to write CMYKBitmaps 
We always store CMYK data as YCCK, for two reasons:

1. If we ever want to do subsampling, then doing 2111 or
   2112 makes sense with YCCK, while it doesn't make sense
   if we store CMYK directly.
2. It forces us to write a color transform header. With a color
   transform header, everyone agrees that the CMYK channels should
   be stored inverted, while without it behavior between decoders
   is inconsistent. (We could write an explicit  color transform header
   for CMYK too though, but with YCCK it's harder to forget since the
   output will look wrong everywhere without it.)

initialize_mcu() grows a full CMYKBitmap override. Some of the
macroblock traversal could probably shared with some kind of
for_all_macroblocks() type function in the future, but the color
conversion math is different enough that this should be a separate
function.

Other than that, we pass around a mode parameter and make a few fuctions
write 4 instead of 3 channels, and that's it.

We use the luminance quantization and huffman tables for the K
channel.
2024-02-02 07:19:18 +01:00
.devcontainer Meta: Switch to clang-format-16 as the standard formatter 2023-07-08 10:32:56 +01:00
.github CI: Bump actions/cache from 3 to 4 2024-01-22 09:02:37 -05:00
AK AK: Remove the SIMD version of rsqrt() too, for good measure 2024-01-30 10:02:33 +01:00
Base HexEditor: Add an option to load an annotations file on startup 2024-01-31 17:38:56 +00:00
Documentation Documentation: Update link to Default.css in LibWeb docs 2024-01-31 12:34:16 -05:00
Kernel Kernel/riscv64: Implement everything in PageDirectory.cpp 2024-01-29 05:17:03 -07:00
Ladybird Ladybird+LibWeb+WebContent: Port the did_request_cookie IPC to String 2024-01-26 20:22:39 +01:00
Meta LibPDF+Meta: Use a CMYK ICC profile to convert CMYK to RGB 2024-02-01 13:42:04 -07:00
Ports Ports: Update zlib to 1.3.1 2024-01-23 18:31:00 +01:00
Tests LibPDF+Meta: Use a CMYK ICC profile to convert CMYK to RGB 2024-02-01 13:42:04 -07:00
Toolchain Kernel: Add initial basic support for KASAN 2023-12-30 13:57:10 +01:00
Userland LibGfx/JPEGWriter: Make it possible to write CMYKBitmaps 2024-02-02 07:19:18 +01:00
.clang-format Meta: Support using clang-format on Objective-C++ files 2023-08-22 21:36:19 -04:00
.clang-tidy Meta: Disable misc-use-anonymous-namespace clang-tidy warning 2023-08-23 12:25:40 +01:00
.editorconfig Meta: Add .editorconfig 2022-09-10 17:32:55 +01:00
.gitattributes Repository: Protect port patches from CRLF/LF normalization 2022-01-12 01:08:38 +01:00
.gitignore Meta: Move .DS_Store rule to the bottom of the .gitignore file 2023-11-14 14:53:37 -05:00
.gn Meta: Automatically generate a compilation database for clangd 2023-11-14 14:29:35 -05:00
.mailmap Everywhere: Update copyrights with my new serenityos.org e-mail :^) 2023-07-15 16:21:29 +02:00
.pre-commit-config.yaml Meta: Add a post-commit commit message linter hook 2021-05-02 16:28:01 +02:00
.prettierignore LibJS: Add DisposableStack{, Prototype, Constructor} 2023-01-23 09:56:50 +00:00
.prettierrc Meta: Move prettier config files to the root of the repository 2020-08-24 18:21:33 +02:00
.ycm_extra_conf.py Meta: Remove i686 references in YCM configuration 2022-12-28 11:53:41 +01:00
azure-pipelines.yml CI: Remove extraneous toolchain job from Azure CI 2022-12-28 15:26:12 -05:00
CMakeLists.txt Meta: Replace run.sh by run.py 2023-12-15 00:11:50 +01:00
CONTRIBUTING.md Meta: Add a note about resolving PR review comments 2023-10-18 13:32:13 +02:00
LICENSE Meta: Update the year range in LICENSE 2024-01-06 17:39:16 -05:00
README.md Everywhere: Remove references to UserspaceEmulator 2024-01-29 20:20:55 +00:00
SECURITY.md Meta: Add a security policy 2022-06-29 03:29:27 +00:00

README.md

SerenityOS

Graphical Unix-like operating system for x86-64 computers.

GitHub Actions Status Azure DevOps Status Fuzzing Status Sonar Cube Static Analysis Discord

FAQ | Documentation | Build Instructions

About

SerenityOS is a love letter to '90s user interfaces with a custom Unix-like core. It flatters with sincerity by stealing beautiful ideas from various other systems.

Roughly speaking, the goal is a marriage between the aesthetic of late-1990s productivity software and the power-user accessibility of late-2000s *nix. This is a system by us, for us, based on the things we like.

You can watch videos of the system being developed on YouTube:

Screenshot

Screenshot as of c03b788.png

Features

  • Modern x86 64-bit kernel with pre-emptive multi-threading
  • Browser with JavaScript, WebAssembly, and more (check the spec compliance for JS, CSS, and Wasm)
  • Security features (hardware protections, limited userland capabilities, W^X memory, pledge & unveil, (K)ASLR, OOM-resistance, web-content isolation, state-of-the-art TLS algorithms, ...)
  • System services (WindowServer, LoginServer, AudioServer, WebServer, RequestServer, CrashServer, ...) and modern IPC
  • Good POSIX compatibility (LibC, Shell, syscalls, signals, pseudoterminals, filesystem notifications, standard Unix utilities, ...)
  • POSIX-like virtual file systems (/proc, /dev, /sys, /tmp, ...) and ext2 file system
  • Network stack and applications with support for IPv4, TCP, UDP; DNS, HTTP, Gemini, IMAP, NTP
  • Profiling, debugging and other development tools (Kernel-supported profiling, CrashReporter, interactive GUI playground, HexEditor, HackStudio IDE for C++ and more)
  • Libraries for everything from cryptography to OpenGL, audio, JavaScript, GUI, playing chess, ...
  • Support for many common and uncommon file formats (PNG, JPEG, GIF, MP3, WAV, FLAC, ZIP, TAR, PDF, QOI, Gemini, ...)
  • Unified style and design philosophy, flexible theming system, custom (bitmap and vector) fonts
  • Games (Solitaire, Minesweeper, 2048, chess, Conway's Game of Life, ...) and demos (CatDog, Starfield, Eyes, mandelbrot set, WidgetGallery, ...)
  • Every-day GUI programs and utilities (Spreadsheet with JavaScript, TextEditor, Terminal, PixelPaint, various multimedia viewers and players, Mail, Assistant, Calculator, ...)

... and all of the above are right in this repository, no extra dependencies, built from-scratch by us :^)

Additionally, there are over three hundred ports of popular open-source software, including games, compilers, Unix tools, multimedia apps and more.

How do I read the documentation?

Man pages are available online at man.serenityos.org. These pages are generated from the Markdown source files in Base/usr/share/man and updated automatically.

When running SerenityOS you can use man for the terminal interface, or help for the GUI.

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

How do I build and run this?

See the SerenityOS build instructions. Serenity runs on Linux, macOS (aarch64 might be a challenge), Windows (with WSL2) and many other *Nixes with hardware or software virtualization.

Get in touch and participate!

Join our Discord server: SerenityOS Discord

Before opening an issue, please see the issue policy.

A general guide for contributing can be found in CONTRIBUTING.md.

Authors

And many more! See here for a full contributor list. The people listed above have landed more than 100 commits in the project. :^)

License

SerenityOS is licensed under a 2-clause BSD license.