recursion-schemes
tiny-skia
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recursion-schemes | tiny-skia | |
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20 | 17 | |
335 | 1,010 | |
0.6% | - | |
4.9 | 6.6 | |
14 days ago | 4 days ago | |
Haskell | Rust | |
BSD 2-clause "Simplified" License | BSD 3-clause "New" or "Revised" License |
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recursion-schemes
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-❄️- 2023 Day 4 Solutions -❄️-
Reasonably proud of my part 2 solution, although would like to try using a recursion scheme rather than unstructured recursion:
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Interactive animations
Yeah, that project is pretty much at the bottom of my list, unfortunately. My top projects these days are mgmt, klister, recursion-schemes, and hint... And that's already too much!
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Science of Recursion
In a programming context, recursion schemes can be used to write recursive (or corecursive) functions, by automating/abstracting away the common boilerplate part of actually doing the recursion. They take the form of polymorphic higher-order functions, which can be imported from a library like this classic one.
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Is there a way to avoid call overhead?
Maybe I didn't link the best post. It is unfortunately the only one I know that uses Rust. If you are able to read Haskell, the documentation for the recursion-schemes package might be a better resource?
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Ah yes I love arrays with a length of infinity!!!
Writing something as a type of fold over an infinite sequence is nicer than using recursion directly in my opinion. See: https://hackage.haskell.org/package/recursion-schemes
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Tips on mastering recursion and trees and shit?
Consider recursion schemes! It let's you separate the logic of how your recursion is structured on your data, and the logic of what you're doing on each recursion stage. So e.g. you can write the core logic of a recursive linked list summation as just fun x accum -> x + accum, and then you just find the appropriate recursion scheme to pipe the list values into x and handle recursing to build accum (a catamorphism in this case)
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So you come across an undocumented library…
It's a pretty complicated bug, documented in details at https://github.com/recursion-schemes/recursion-schemes/issues/50
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Beautiful ideas in programming: generators and continuations
It’s also trivial and easy in Haskell — you just need an instance of `Foldable` or `Traversable` on your collection, and then you can fold or traverse it in a configurable way. Or for recursive structures, use https://hackage.haskell.org/package/recursion-schemes. Or even just pass a traversal function as an argument for maximum flexibility.
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fromMaybe is Just a fold
https://hackage.haskell.org/package/recursion-schemes is the "normal" library for this type of generalized folding. It even contains Base instances for Maybe and Either.
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Annotation via anamorphism?
I've been working on a system which uses recursion-schemes to annotate a recursive type. The annotated tree itself is pretty simple; at each level, we pair the annotation with the base functor, or
tiny-skia
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A simple 2d graphic library
You can even check https://github.com/linebender/piet and https://github.com/RazrFalcon/tiny-skia. They are pure rust libraries. Skia as a whole is a big binary to add.
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Typst, a modern alternative to LaTeX, is now open source
Looking through the source code. It looks like it's using tiny-skia for rendering.
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Recommended UI framework to draw many 2D lines?
Tiny Skia (https://github.com/RazrFalcon/tiny-skia) which is a slower Rust port of Skia and does all software rendering.
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Announcing piet-glow, a GL-based implementation of Piet for 2D rendering
https://github.com/RazrFalcon/tiny-skia is pretty great.
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Is coding in Rust as bad as in C++? A practical comparison
I understand that this may sound harsh, but I also ported two (far bigger) codebases from C++ to Rust: rustybuzz and tiny-skia. Both of which are production -ready and not just prototypes. And mine not only do not use pointers, but also barely use unsafe in general.
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Is there a way to avoid call overhead?
Here is a real world implementation in tiny-skia: https://github.com/RazrFalcon/tiny-skia/blob/master/src/pipeline/highp.rs
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I want to draw 2d shapes directly to a u8 buffer without needing a window and without having to write drawing code from scratch.
How about tiny-skia?
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Good example of high performance Rust project without unsafe code?
How about tiny-skia? Almost the same performance as C, no unsafe, a lot of explicit SIMD.
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Announcing lyon 1.0.0
Now I would love to see a universal Bezier path crate, storage + common utilities like length, point at offset, some low-level stuff, etc. So it could be used as a foundation for other crates. Currently, there is a lot of friction because each crate has its own implementation.
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I wrote a GUI library.
Nice to see tiny-skia in use.
What are some alternatives?
distributed-process-platform - DEPRECATED (Cloud Haskell Platform) in favor of distributed-process-extras, distributed-process-async, distributed-process-client-server, distributed-process-registry, distributed-process-supervisor, distributed-process-task and distributed-process-execution
PixiJS - The HTML5 Creation Engine: Create beautiful digital content with the fastest, most flexible 2D WebGL renderer.
record - Anonymous records
fontdue - The fastest font renderer in the world, written in pure rust.
unliftio - The MonadUnliftIO typeclass for unlifting monads to IO
Nim - Nim is a statically typed compiled systems programming language. It combines successful concepts from mature languages like Python, Ada and Modula. Its design focuses on efficiency, expressiveness, and elegance (in that order of priority).
machines - Networks of composable stream transducers
canvas - Cairo in Go: vector to raster, SVG, PDF, EPS, WASM, OpenGL, Gio, etc.
chr-core - Constraint Handling Rules
pixie - Full-featured 2d graphics library for Nim.
pipes-core - Compositional pipelines
vouch-proxy - an SSO and OAuth / OIDC login solution for Nginx using the auth_request module