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Stephan Unverwerth b7c0c32f24 LibSoftGPU: Add option to render a debug overlay
This displays statistics regarding frame timings and number of pixels
rendered.

Timings are based on the time between draw_debug_overlay() invocations.
This measures actual number of frames presented to the user vs. wall
clock time so this also includes everything the app might do besides
rendering.

Triangles are counted after clipping. This number might actually be
higher than the number of triangles coming from LibGL.

Pixels are counted after the initial scissor and coverage test. Pixels
rejected here are not counted. Shaded pixels is the percentage of all
pixels that made it to the shading stage. Blended pixels is the
percentage of shaded pixels that were alpha blended to the color buffer.

Overdraw measures how many pixels were shaded vs. how many pixels the
render target has. e.g. a 640x480 render target has 307200 pixels. If
exactly that many pixels are shaded the overdraw number will read 0%.
614400 shaded pixels will read as an overdraw of 100%.

Sampler calls is simply the number of times sampler.sample_2d() was
called.
2022-01-01 15:09:21 +01:00
.github Meta: Add Sam Atkins's GitHub Sponsors to funding options :^) 2021-12-28 08:08:39 +01:00
AK Kernel+AK: Eliminate a couple of temporary String allocations 2021-12-30 14:16:03 +01:00
Base Themes: Add Cupertino theme 2022-01-01 14:54:16 +01:00
Documentation Meta+Documentation: Don't rebuild disk image for every run on OpenBSD 2021-12-29 03:46:56 -08:00
Kernel Kernel+LibC+LibCore: Add lchown and fchownat functions 2022-01-01 15:08:49 +01:00
Meta Meta: Enable attaching NVMe storage devices to qemu 2022-01-01 14:55:58 +01:00
Ports Ports: Implement SDL_QUIT event in Tux Racer 2021-12-30 14:24:29 +01:00
Tests Tests/LibCore: Add regression test for the read_until_any_of OOB read 2022-01-01 14:44:02 +01:00
Toolchain Build: Remove gzip -k usage in PCI/USB ID files and crypt for OpenBSD 2021-12-29 03:46:56 -08:00
Userland LibSoftGPU: Add option to render a debug overlay 2022-01-01 15:09:21 +01:00
.clang-format Meta: Update .clang-format to not indent nested namespaces 2020-03-14 10:10:21 +01:00
.clang-tidy Meta: Enable the "bugprone-dangling-handle" clang-tidy check 2021-12-10 23:00:24 +02:00
.gitattributes Meta: Mark the other image file formats as binary in .gitattributes 2021-05-20 08:04:28 +02:00
.gitignore man.serenityos.org: Simplify local builds 2021-10-22 19:49:28 +03:00
.mailmap Meta: Update my .mailmap entry to contain all the emails I use 2021-12-21 05:03:44 +03:30
.pre-commit-config.yaml Meta: Add a post-commit commit message linter hook 2021-05-02 16:28:01 +02:00
.prettierignore CI: Bump prettier to latest version (2.4.1) 2021-11-21 01:18:23 +00:00
.prettierrc Meta: Move prettier config files to the root of the repository 2020-08-24 18:21:33 +02:00
azure-pipelines.yml CI: Build the Clang toolchain a single time for both onboard pipelines 2021-10-18 03:25:26 -07:00
CMakeLists.txt Meta: Use portable gzip option for extracting PCI and USB ID files 2021-12-29 15:03:47 -08:00
CONTRIBUTING.md Docs: Fixed grammar "diagnose what is the problem" 2021-12-12 11:36:23 -08:00
LICENSE Everywhere: Use "the SerenityOS developers." in copyright headers 2021-04-29 00:59:26 +02:00
README.md Meta: Link to Linus's YouTube channel from our README :^) 2021-12-28 08:06:17 +01:00

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:

Screenshot

Screenshot as of b36968c.png

Kernel features

  • x86 (32-bit) and x86_64 (64-bit) kernel with pre-emptive multi-threading
  • Hardware protections (SMEP, SMAP, UMIP, NX, WP, TSD, ...)
  • IPv4 stack with ARP, TCP, UDP and ICMP protocols
  • ext2 filesystem
  • POSIX signals
  • Purgeable memory
  • /proc filesystem
  • Pseudoterminals (with /dev/pts filesystem)
  • Filesystem notifications
  • CPU and memory profiling
  • SoundBlaster 16 driver
  • VMWare/QEMU mouse integration

System services

  • Launch/session daemon (SystemServer)
  • Compositing window server (WindowServer)
  • Text console manager (TTYServer)
  • DNS client (LookupServer)
  • Network protocols server (RequestServer and WebSocket)
  • Software-mixing sound daemon (AudioServer)
  • Desktop notifications (NotificationServer)
  • HTTP server (WebServer)
  • Telnet server (TelnetServer)
  • DHCP client (DHCPClient)

Libraries

  • C++ templates and containers (AK)
  • Event loop and utilities (LibCore)
  • 2D graphics library (LibGfx)
  • OpenGL 1.x compatible library (LibGL)
  • GUI toolkit (LibGUI)
  • Cross-process communication library (LibIPC)
  • HTML/CSS engine (LibWeb)
  • JavaScript engine (LibJS)
  • Markdown (LibMarkdown)
  • Audio (LibAudio)
  • Digital Signal Processing/Synthesizer Chains (LibDSP)
  • PCI database (LibPCIDB)
  • Terminal emulation (LibVT)
  • Out-of-process network protocol I/O (LibProtocol)
  • Mathematical functions (LibM)
  • ELF file handling (LibELF)
  • POSIX threading (LibPthread)
  • Higher-level threading (LibThreading)
  • Transport Layer Security (LibTLS)
  • HTTP and HTTPS (LibHTTP)
  • IMAP (LibIMAP)

Userland features

  • Unix-like libc and userland
  • Shell with pipes and I/O redirection
  • On-line help system (both terminal and GUI variants)
  • Web browser (Browser)
  • C++ IDE (HackStudio)
  • Desktop synthesizer (Piano)
  • E-mail client (Mail)
  • Various desktop apps & games
  • Color themes

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.

How do I build and run this?

See the SerenityOS build instructions

Before opening an issue

Please see the issue policy.

FAQ: Frequently Asked Questions

Get in touch

Join our Discord server: SerenityOS Discord

Author

Contributors

(And many more!) The people listed above have landed more than 100 commits in the project. :^)

License

SerenityOS is licensed under a 2-clause BSD license.