Since https://github.com/emilk/egui/pull/1149 we only update the
region of the font atlas that has changes, so loading new glyphs is much
cheaper. This means warm-up is much less needed.
There is now a small delay when opening the font book,
but not when opening anything else.
In https://github.com/emilk/egui/pull/1154 the default was set to
16k x 512, which is way excessive, as most of it will be blank.
This PR changes it to 8k x 64, which will make egui
use less RAM and VRAM, and load quicker again.
This also decreases the max size from 16k² to 8k².
That should be enough.
* Fix Orientation not exposed, although there are public fields with its type
* Implement formatters for X/Y axis labels
* Use array instead of separate X/Y formatters
* Swap axis formatters if charts are horizontal
* Review suggestions
* Refactor text layout: don't need &Fonts in all functions
* Replace indexing in Fonts with member function
* Wrap Fonts in a Mutex
* Remove mutex for Font::glyph_info_cache
* Remove RwLock around Font::characters
* Put FontsImpl and GalleyCache behind the same Mutex
* Round font sizes to whole pixels before deduplicating them
* Make TextStyle !Copy
* Implement user-named TextStyle:s
* round font size earlier
* Cache fonts based on family and size
* Move TextStyle into egui and Style
* Remove body_text_style
* Query graphics about max texture size and use that as font atlas size
* Recreate texture atlas when it is getting full
* Move texture allocation into epaint/egui proper
* Add TextureHandle
* egui_glow: cast using bytemuck instead of unsafe code
* Optimize glium painter
* Optimize WebGL
* Add example of loading an image from file
* Re-add check of WEBGL_debug_renderer_info to avoid OpenGL error
I removed this check in https://github.com/emilk/egui/pull/1020
because it produced a warning on Firefox. Better a warning
than an OpenGL error though.
* Bug fix: don't ask for webgl context and then later for webgl2 context
The browser will only allow the first thing we check, so this will
prevent webgl2 from working.
* Move all interior mutability from Context to CtxRef and make it a handle
* Rename `CtxRef` to `Context`
* The old `Context` is now `ContextImpl` and is non-pub
* Add benchmark Painter::rect
Co-authored-by: Daniel Keller <dklr433@gmail.com>
