lisoph/chorus_studio

Official repository for the Chorus Studio project.

chorus_studio's Issues

Leaking Memory [Windows]

For some reason, Chorus Studio is leaking memory on Windows.

Steps to reproduce: Run either the debug or release build, and watch the memory allocated in the task manager. It grows over time. To see a more dramatic effect, resize the window a lot and the memory usage skyrockets.

Possibly a memory leak in the nanovg C library? None of the rust code should leak.

Tested with: rustc 1.22.0-nightly (d93036a04 2017-09-07) on Windows.

• reproduce on Mac.

Use custom text renderer

Implies #1.

While nanovg comes with a decent text renderer, I would like to implement my own for the following reasons / features:

1. Rasterization quality
2. Color emoji
3. Rasterization speed
4. Wide range of supported font document formats

This basically means that only FreeType is an option.

Additionally, I also want a decent text layouting solution:

1. Right-to-left layouting (based on https://github.com/servo/unicode-bidi)
2. Line breaking (based on https://github.com/google/xi-editor/tree/master/rust/unicode)
3. Word boundaries for navigating / selecting text (based on https://github.com/unicode-rs/unicode-segmentation)

Relatively high CPU usage caused by SpaceDivs

Even with very few SpaceDivs, Chorus Studio is relatively heavy on the CPU.

Fix this by caching the computed divs and only drawing changed / dirty widgets.

Rewrite renderer using nanovg-rs

https://github.com/Lisoph/nanovg-rs