What popular crates are available to build GUIs with widgets WITHOUT GPU? (programming.dev)

submitted 1 year ago by van2z@programming.dev to c/rust@programming.dev

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For some reason, it seems popular for GUI crates to use the GPU. I just want to make simple widgets, for like a calculator.

No fancy graphics. I want it quite lightweight.

For some reason, popular GUI crates love to do everything through a GPU, which bumps up the memory / cpu use significantly.

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[-] RunAwayFrog@sh.itjust.works 13 points 1 year ago

Funny you should mention that. I think iced as of four days ago can do this!

If I'm reading the release notes and Cargo.toml right, cargo add iced --no-default-features and you should be good to go, as tiny-skia will be used as a rendering backend instead of wgpu.

[-] van2z@programming.dev 13 points 1 year ago* (last edited 1 year ago)

OMG, thank you! I have been using Iced. My simple application's RAM just went down from 80 MB to only 4 MB.

The executable size went down from about 8 MB to 2.5 MB

[-] hch12907@programming.dev 3 points 1 year ago

8MB to 2.5MB is a huge drop. I wonder what caused the bloat - a crate?

[-] Lmaydev@programming.dev 7 points 1 year ago

Most likely the GPU one

[-] hch12907@programming.dev 2 points 1 year ago

Obviously.

I mean the specific crate that caused the bloat.

this post was submitted on 01 Aug 2023

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