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layout: Inform webrender about new pipeline as early as possible.

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This commit is contained in:
Josh Matthews 2019-11-12 12:15:30 -05:00
parent 808c34498b
commit edcdcf7c13
2 changed files with 30 additions and 2 deletions
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18
components/layout_thread/lib.rs
View file

@ -532,6 +532,20 @@ impl LayoutThread {
trace_layout: bool,
dump_flow_tree: bool,
) -> LayoutThread {
// Let webrender know about this pipeline by sending an empty display list.
let mut epoch = Epoch(0);
let webrender_api = webrender_api_sender.create_api();
let mut txn = webrender_api::Transaction::new();
txn.set_display_list(
webrender_api::Epoch(epoch.0),
None,
Default::default(),
(id.to_webrender(), Default::default(), Default::default()),
false,
);
webrender_api.send_transaction(webrender_document, txn);
epoch.next();
let device = Device::new(
MediaType::screen(),
window_size.initial_viewport,
@ -576,9 +590,9 @@ impl LayoutThread {
document_shared_lock: None,
running_animations: ServoArc::new(RwLock::new(Default::default())),
expired_animations: ServoArc::new(RwLock::new(Default::default())),
epoch: Cell::new(Epoch(0)),
epoch: Cell::new(epoch),
viewport_size: Size2D::new(Au(0), Au(0)),
webrender_api: webrender_api_sender.create_api(),
webrender_api,
webrender_document,
stylist: Stylist::new(device, QuirksMode::NoQuirks),
rw_data: Arc::new(Mutex::new(LayoutThreadData {

14
components/layout_thread_2020/lib.rs
View file

@ -450,6 +450,20 @@ impl LayoutThread {
window_size: WindowSizeData,
relayout_event: bool,
) -> LayoutThread {
// Let webrender know about this pipeline by sending an empty display list.
let mut epoch = Epoch(0);
let webrender_api = webrender_api_sender.create_api();
let mut txn = webrender_api::Transaction::new();
txn.set_display_list(
webrender_api::Epoch(epoch.0),
None,
Default::default(),
(id.to_webrender(), Default::default(), Default::default()),
false,
);
webrender_api.send_transaction(webrender_document, txn);
epoch.next();
// The device pixel ratio is incorrect (it does not have the hidpi value),
// but it will be set correctly when the initial reflow takes place.
let device = Device::new(