はじめに 以前つくった Minsta というデジタルスタンプラリーの Web アプリの中で、ブラウザ上で Canvas を使用してスタンプ風の画像を生成する機能があるのですが、前々からもう少し画像のファイルサイズを落とせそうだなと思っていたので、今回 Rust と WebAssembly を使用して PNG ファイルを極限まで圧縮するのに挑戦してみました。 Minsta については以下の記事をご覧ください。 動機 Minsta では単色で背景透過の以下のようなスタンプの PNG 画像をブラウザ側で Canvas の toBlob メソッドを使用して生成しているのですが、このメソッドで PNG エンコードすると 32 bit の RGB+alpha 形式のファイルしか生成できず、 Minsta で扱うような単色の画像にとっては余計にデータサイズが膨らんでしまっていました。 PNG は使用する
Error Handling for Large Rust Projects - A Deep Dive into GreptimeDB's Practices | Greptime Blog
This blog shares our experience organizing variant types of Error in a complex system like GreptimeDB, from how an error is defined to how to log the error or present it to end-users. Such a system is composed of multiple components with their own Error definitions. Status Quo of Rust's Error Handling A few standard libraries in Rust provide Error structs that implement std::error::Error, like st
Screenshot of Zed — but where are the red/yellow/green window controls? Does anything stick out? Yes, exactly, it's a screenshot of Zed running on Linux! Wait, what? Zed on Linux? Is it released yet? No, it's not, but it's taking shape, fast. At the end of January we open-sourced Zed and had zero Linux support. Now, three months later, you can compile & run Zed on Linux and actually use it. And I
Rust through the ages
How has Rust changed over the years? It's been nine years since 1.0 was released (well, next week, technically). In that time, there have been 78 major releases and two editions, with a third due later this year. Quite a lot has changed! Those changes have been fairly incremental, so if you've been using Rust all that time, it probably doesn't feel like a lot. But comparing the 1.0 flavour of Rust
The Rustls TLS library can now be used with Nginx via an OpenSSL compatibility layer. This means that Nginx users can switch from OpenSSL to Rustls with minimal effort - users can simply swap in a new TLS library without needing to modify or recompile Nginx. We have targeted Nginx versions greater than 1.18 on Ubuntu 22.04 or newer for initial support. Here's how easy it is to get going on x86_64
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Rust と Wasm で極限まで PNG ファイルを圧縮した話
Zed Decoded: Linux when? - Zed Blog
Rustls Gains OpenSSL and Nginx Compatibility