libjpeg-turbo
kira
libjpeg-turbo | kira | |
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15 | 11 | |
3,594 | 789 | |
1.1% | - | |
8.2 | 7.5 | |
23 days ago | 11 days ago | |
C | Rust | |
GNU General Public License v3.0 or later | Apache License 2.0 |
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libjpeg-turbo
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Jpegli: A New JPEG Coding Library
> all decoders will render the same pixels
Not true. Even just within libjpeg, there are three different IDCT implementations (jidctflt.c, jidctfst.c, jidctint.c) and they produce different pixels (it's a classic speed vs quality trade-off). It's spec-compliant to choose any of those.
A few years ago, in libjpeg-turbo, they changed the smoothing kernel used for decoding (incomplete) progressive JPEGs, from a 3x3 window to 5x5. This meant the decoder produced different pixels, but again, that's still valid:
https://github.com/libjpeg-turbo/libjpeg-turbo/commit/6d91e9...
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My personal C coding style as of late 2023
Last vestiges of this fact AFAIK were libjpeg, which had a macro NEED_SHORT_EXTERNAL_NAMES that shortens all public identifiers to have unique 6-letter-long prefixes. Libjpeg-turbo nowadays has removed them though [1].
[1] https://github.com/libjpeg-turbo/libjpeg-turbo/commit/52ded8...
- Libjpeg-Turbo 3.0.0
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Why there may never be a libjpeg-turbo 3.1
While I think the move to safer code through Rust and other alternatives is a nice breath of fresh air, I doubt you can get these kinds of optimization without using unsafe code in Rust. These optimized implementations often require some kind of safety-bypassing memory modifications to work as efficiently ad they do.
There's a reason https://github.com/libjpeg-turbo/libjpeg-turbo/tree/main/sim... is filled with assembly files with conditional loading.
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Learn x86-64 assembly by writing a GUI from scratch
Sure. You'll see it very often in codec implementations. From rav1e, a fast AV1 encoder mostly written in Rust: https://github.com/xiph/rav1e/tree/master/src/x86
Large portions of the algorithm have been translated into assembly for ARM and x86. Shaving even a couple percent off something like motion compensation search will add up to meaningful gains.
Or the current reference implementation of JPEG: https://github.com/libjpeg-turbo/libjpeg-turbo/tree/main/sim...
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Announcing zune-jpeg: Rust's fastest JPEG decoder
zune-jpeg is 1.5x to 2x faster than jpeg-decoder and is on par with libjpeg-turbo.
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JDK 21 - Image Performance Improvements
This is interesting from the standpoint of how new JVM features can be used to improve performance (what I presume the article's main purpose to have been), but the image processing improvement itself isn't head-turning. Also, we've found that libjpeg-turbo (https://libjpeg-turbo.org/) is ~5x (IIRC, can re-run my JMH benchmark if anyone wants me to) as fast for decoding JPEGs as ImageIO, so we wouldn't even benefit from this change in 21 much.
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Convenient CPU feature detection and dispatch in the Magnum Engine
libjpeg-turbo: https://github.com/libjpeg-turbo/libjpeg-turbo/blob/main/simd/x86_64/jsimdcpu.asm
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Implementing SVE2 for Open Source Project
libjpeg-turbo
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How to go about implementing file encoding [Question]
For all but the simplest formats (basically BMP), the difficulty of implementing encoding/decoding from scratch is significant - well beyond a beginner's ability, and challenging/time-consuming even for senior developers. So, libraries are used in practice - e.g. libpng and libjpeg-turbo.
kira
- Kira game audio library v0.8 - spatial sounds, modulators, compressor and EQ filter effects
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Rust audio library
I've had too experience with https://crates.io/crates/kira
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What's the current audio library of choice for Rust gamedev?
Perhaps something like kira audio https://github.com/tesselode/kira
- kira (game audio library) v0.6.0 - complete rewrite with streaming sound support and a leaner and more elegant API
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I'm giving out microgrants to open source projects for the third year in a row! Brag about your projects here so I can see them, big or small!
I'm working on Kira, a game audio library with some features that go overlooked by most game audio solutions.
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Looking for an open-source project to join part-time
speaking of audio! i'm working on a game audio library called kira, which some people seem interested in integrating into bevy. i'd love to have more contributors!
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kira (game audio library) v0.5.0 - playback position getter, mixer send tracks, new effects
crates.io | docs
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kira (game audio library) v0.4.0 - wasm support, serde support, API improvements
Kira GitHub repo
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What audio library to use?
I think you should look into kira. It provides a lot of amazing features, more here
- kira (game audio library) v0.3.0 - per-sequence custom event types, audio streams, and random values
What are some alternatives?
ImageMagick - 🧙♂️ ImageMagick 7
fastfetch - Like neofetch, but much faster because written mostly in C.
libwebp - Mirror only. Please do not send pull requests. See https://chromium.googlesource.com/webm/libwebp/+/HEAD/CONTRIBUTING.md.
factorio-lib-rs - Rust library with a collection of things about Factorio
orion - Usable, easy and safe pure-Rust crypto
gentooinstall
bloom - The simplest way to de-Google your life and business: Inbox, Calendar, Files, Contacts & much more
LichessBot - Repo of a Discord bot that is for viewing games and users on Lichess.
virtualgl - Main VirtualGL repository
bevy - A refreshingly simple data-driven game engine built in Rust
Rustup - The Rust toolchain installer
soda - Soda