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Track outstanding WR frames and delay reftest screenshot when necessary.

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This commit is contained in:
Josh Matthews 2020-02-21 03:45:29 -05:00
parent 0633f327ca
commit c21574623f
4 changed files with 35 additions and 2 deletions
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11
components/compositing/compositor.rs
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@ -39,6 +39,8 @@ use std::fs::{create_dir_all, File};
use std::io::Write;
use std::num::NonZeroU32;
use std::rc::Rc;
use std::sync::atomic::{AtomicBool, Ordering};
use std::sync::Arc;
use style_traits::viewport::ViewportConstraints;
use style_traits::{CSSPixel, DevicePixel, PinchZoomFactor};
use time::{now, precise_time_ns, precise_time_s};
@ -208,6 +210,11 @@ pub struct IOCompositor<Window: WindowMethods + ?Sized> {
/// True to translate mouse input into touch events.
convert_mouse_to_touch: bool,
/// True if a WR frame render has been requested. Screenshots
/// taken before the render is complete will not reflect the
/// most up to date rendering.
waiting_on_pending_frame: Arc<AtomicBool>,
}
#[derive(Clone, Copy)]
@ -322,6 +329,7 @@ impl<Window: WindowMethods + ?Sized> IOCompositor<Window> {
is_running_problem_test,
exit_after_load,
convert_mouse_to_touch,
waiting_on_pending_frame: state.pending_wr_frame,
}
}
@ -425,6 +433,7 @@ impl<Window: WindowMethods + ?Sized> IOCompositor<Window> {
},
(Msg::Recomposite(reason), ShutdownState::NotShuttingDown) => {
self.waiting_on_pending_frame.store(false, Ordering::SeqCst);
self.composition_request = CompositionRequest::CompositeNow(reason)
},
@ -455,7 +464,7 @@ impl<Window: WindowMethods + ?Sized> IOCompositor<Window> {
self.ready_to_save_state,
ReadyState::WaitingForConstellationReply
);
if is_ready {
if is_ready && !self.waiting_on_pending_frame.load(Ordering::SeqCst) {
self.ready_to_save_state = ReadyState::ReadyToSaveImage;
if self.is_running_problem_test {
println!("ready to save image!");