Move non-gfx things out of gfx_traits and create a base crate (#32296)

For a long time, `gfx_traits` has held a lot of things unrelated to graphics
and also unrelated to the `gfx` crate (which is mostly about fonts).
This is a cleanup which does a few things:

1. Move non `gfx` crate things out of `gfx_traits`. This is important in
   order to prevent dependency cycles with a different integration between
   layout, script, and fonts.
2. Rename the `msg` crate to `base`. It didn't really contain anything
   to do with messages and instead mostly holds ids, which are used
   across many different crates in Servo. This new crate will hold the
   *rare* data types that are widely used.

Details:

 - All BackgroundHangMonitor-related things from base to a new
   `background_hang_monitor_api` crate.
 - Moved `TraversalDirection` to `script_traits`
 - Moved `Epoch`-related things from `gfx_traits` to `base`.
 - Moved `PrintTree` to base. This should be widely useful in Servo.
 - Moved `WebrenderApi` from `base` to `webrender_traits` and renamed it
   to `WebRenderFontApi`.
This commit is contained in:
Martin Robinson 2024-05-17 14:28:58 +02:00 committed by GitHub
parent 1017533297
commit 3398fc017b
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163 changed files with 709 additions and 632 deletions

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@ -9,7 +9,10 @@ use std::sync::{Arc, Mutex};
use euclid::default::Size2D;
use webrender_api::units::TexelRect;
use webrender_api::{ExternalImage, ExternalImageHandler, ExternalImageId, ExternalImageSource};
use webrender_api::{
ExternalImage, ExternalImageHandler, ExternalImageId, ExternalImageSource, FontInstanceFlags,
FontInstanceKey, FontKey, NativeFontHandle,
};
/// This trait is used as a bridge between the different GL clients
/// in Servo that handles WebRender ExternalImages and the WebRender
@ -164,3 +167,14 @@ impl ExternalImageHandler for WebrenderExternalImageHandlers {
};
}
}
pub trait WebRenderFontApi {
fn add_font_instance(
&self,
font_key: FontKey,
size: f32,
flags: FontInstanceFlags,
) -> FontInstanceKey;
fn add_font(&self, data: Arc<Vec<u8>>, index: u32) -> FontKey;
fn add_system_font(&self, handle: NativeFontHandle) -> FontKey;
}