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script: Generate only a single frame during "update the rendering" (#38858)

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Instead of generating a frame for every display list, which might be one
rendered frame per `<iframe>`, generate only a single frame per call to
"update the rendering." This should make rendering more efficient when
there are `<iframe>`s present and also open up optimizations for
non-display list frames.

Testing: This could potentially reduce flashing of content during
rendering
updates, but that is very difficult to test.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
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Martin Robinson 2025-08-26 09:09:10 -07:00 • committed by GitHub
parent 4f68508624
commit e7a963cca0
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6 changed files with 40 additions and 10 deletions
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10
components/shared/compositing/lib.rs
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@ -111,6 +111,9 @@ pub enum CompositorMsg {
/// An [ipc::IpcBytesReceiver] used to send the raw data of the display list.
display_list_receiver: ipc::IpcBytesReceiver,
},
/// Ask the renderer to generate a frame for the current set of display lists that
/// have been sent to the renderer.
GenerateFrame,
/// Create a new image key. The result will be returned via the
/// provided channel sender.
GenerateImageKey(IpcSender<ImageKey>),
@ -244,6 +247,13 @@ impl CrossProcessCompositorApi {
}
}
/// Ask the Servo renderer to generate a new frame after having new display lists.
pub fn generate_frame(&self) {
if let Err(error) = self.0.send(CompositorMsg::GenerateFrame) {
warn!("Error generating frame: {error}");
}
}
/// Create a new image key. Blocks until the key is available.
pub fn generate_image_key_blocking(&self) -> Option<ImageKey> {
let (sender, receiver) = ipc::channel().unwrap();