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MacDue 3fad64dfbc LibWeb: Sample the destination when painting element opacity/transform 
This now copies the area under the destination to a new bitmap, that
is then scaled to the size of the source. The element is then painted
into that bitmap, which is then scaled and painted back to
the destination. This is done as many effects such as shadows, border
radii, filters, etc require being able to read pixels from the painter.

This does work (and is not that noticeable in many cases), but it does
mean there may be a few scaling artifacts in the background
around transformed elements. Though that was already the case before
anyway for the elements (since it is just a bitmap scale).

What we really want is to (where possible) just scale the paintable
and its descendants, then paint things normally, which would give
much nicer results (but is much more tricky to achieve).

This also now makes it so only a bitmap of the size of the paintable is
copied/created, rather than the whole page.
2022-09-25 18:37:31 +02:00
.github Meta: Enable full region dumping on CI 2022-09-24 14:22:09 +02:00
AK Everywhere: Rename WrapperGenerator to BindingsGenerator 2022-09-21 23:06:08 +01:00
Base Base: Improve U+1F92F emoji 2022-09-25 12:30:34 +02:00
Documentation Documentation: Add a document about the Kernel IOWindow concept 2022-09-23 17:22:15 +01:00
Kernel Kernel: Stop using 'int's for indices in interrupt handling 2022-09-25 16:52:56 +03:00
Meta Lagom: Build DOMTreeModel from LibWebView 2022-09-25 12:10:28 +02:00
Ports Ports: Only regenerate patches if there are actual changed commits 2022-09-18 13:00:46 +04:30
Tests Revert "Tests/Kernel: Add tests to ensure we don't regress InodeVMObjects" 2022-09-24 13:49:40 +02:00
Toolchain Toolchain: Regenerate patches using the latest format rules 2022-09-18 13:00:46 +04:30
Userland LibWeb: Sample the destination when painting element opacity/transform 2022-09-25 18:37:31 +02:00
.clang-format Meta: Update .clang-format to correct qualifier alignment 2022-04-01 21:24:45 +01:00
.clang-tidy Meta: Disable readability-use-anyofallof clang-tidy check 2022-01-09 23:29:57 -08:00
.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 man.serenityos.org: Simplify local builds 2021-10-22 19:49:28 +03:00
.mailmap Everywhere: Use my very shiny serenityos.org email :^) 2022-09-12 15:13:12 +01:00
.pre-commit-config.yaml Meta: Add a post-commit commit message linter hook 2021-05-02 16:28:01 +02:00
.prettierignore LibJS: Handle empty named export 2022-09-02 02:07:37 +01:00
.prettierrc Meta: Move prettier config files to the root of the repository 2020-08-24 18:21:33 +02:00
azure-pipelines.yml CI: Disallow test failures on macOS Lagom :^) 2022-01-14 22:39:06 +01:00
CMakeLists.txt Everywhere: Fully remove the separate LibM directory 2022-09-16 16:09:19 +00:00
CONTRIBUTING.md Meta: Add Sam Atkins to list of project maintainers :^) 2022-06-15 17:36:04 +02:00
LICENSE Meta: Update year range in LICENSE :^) 2022-01-02 18:08:02 +01:00
README.md Meta: Add Brandon Jordan to the contributors list :^) 2022-09-21 10:06:25 +01:00
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 computers.

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

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:

FAQ: Frequently Asked Questions

Screenshot

Screenshot as of b36968c.png

Features

  • Modern x86 32-bit and 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, detailed program analysis with software emulation in UserspaceEmulator, 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 two 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.