Which backend can be used to draw image on screen

[killkrt]

Sorry to open an issue that is not a real issue, actually is a question, but I was not able to find a clear answer in the documentation or examples.

I am trying to find a good pure Rust library to write a simple UI toolkit for a little game, and I was looking for something fast, with few dependencies and with vector graphics support (I would like to write a toolkit that easy scale on different DPI monitors), so raqote seems to be a good candidate!

My questions are:

• Which are the supported backend to render a DrawTarget (or maybe Image) to a window? GFX? Piston Graphics?
• Is raqote using any hardware acceleration (or multi-core) in order to speed the rendering process?

Thank you.

[jrmuizel]

A quick reply for now: Drawing to a window isn't that well supported/documented yet.

In the mean time you can take a look at #67 and https://github.com/cbrewster/raqote-win.

Raqote does not use any hardware acceleration (and has no current plans to). It also doesn't use multiple threads, though this is something that may happen in the future.

[killkrt]

Thank you for your reply.

So maybe, at this time, raqote is not yet ready to be used as fast realtime 2D vector graphics library.
Anyway I will keep an eye on it, it seems promising!

[parasyte]

FWIW, I added an example that uses raqote to animate some vectors with pixels: https://github.com/parasyte/pixels/tree/master/examples/raqote-winit The example uses winit for window handling, input, and event loop.

[tiye]

@parasyte tried the demo and worked, but when I tried it with my code copy, it failed. so weird, maybe dependency problem somewhere since not all deps are up-to-date...

[parasyte]

@jiyinyiyong I may be able to help you better if you open a ticket on the pixels issue tracker. The example in the main branch has dependencies pretty much up to date.

[tiye]

@parasyte tried again with a fresh new project and it works. last time I tried it inside an existing project of mine, but I didn't preserve the code. probably trying later. I'll report to pixels if I could reproduce.