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fonts: Clean up WebRender web fonts when they are no longer used (#32545)

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This is the first part of cleaning up unused WebRender resources.
Currently this only cleans up web font resources, but a more
full-featured implementation in the future could also clean up unused
system fonts.

Fixes #32345.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
Co-authored-by: Mukilan Thiyagarajan <mukilan@igalia.com>
This commit is contained in:
Martin Robinson 2024-06-18 16:02:27 +02:00 • committed by GitHub
parent bd15a4fbd8
commit fef1337da0
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6 changed files with 181 additions and 7 deletions
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16
components/layout_thread_2020/lib.rs
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@ -219,6 +219,16 @@ impl Drop for ScriptReflowResult {
}
}
impl Drop for LayoutThread {
fn drop(&mut self) {
let (keys, instance_keys) = self
.font_context
.collect_unused_webrender_resources(true /* all */);
self.webrender_api
.remove_unused_font_resources(keys, instance_keys)
}
}
impl Layout for LayoutThread {
fn device(&self) -> &Device {
self.stylist.device()
@ -912,6 +922,12 @@ impl LayoutThread {
if reflow_goal.needs_display() {
self.webrender_api
.send_display_list(display_list.compositor_info, display_list.wr.end().1);
let (keys, instance_keys) = self
.font_context
.collect_unused_webrender_resources(false /* all */);
self.webrender_api
.remove_unused_font_resources(keys, instance_keys)
}
self.update_iframe_sizes(iframe_sizes);