mirror of
https://github.com/servo/servo
synced 2026-05-14 02:47:14 +02:00
547dd23574
Currently, the `RefreshDriver` creates a timer thread by default to limit the frame rate of animations to within 120fps. However, some platforms have already integrated `VSYNC` and even support `LTPO`, making the refresh rate of the current `RefreshDriver` mismatched with the display refresh rate of the platform. The main idea of this PR is to introduce the `BeginFrameSource` and `BeginFrameSourceObserver` types, allowing `VSYNC` to be integrated into the RefreshDriver. Testing: It's hard to test rendering rate but some manual tests show that it takes effect on OHOS platform, and other behavior is covered by existing WPT tests. --------- Signed-off-by: sharpshooter_pt <ibluegalaxy_taoj@163.com> Signed-off-by: Martin Robinson <mrobinson@igalia.com> Co-authored-by: Martin Robinson <mrobinson@igalia.com>
61 lines
2.2 KiB
Rust
61 lines
2.2 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
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#![deny(unsafe_code)]
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use std::cell::Cell;
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use std::rc::Rc;
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use base::generic_channel::RoutedReceiver;
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use compositing_traits::rendering_context::RenderingContext;
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use compositing_traits::{CompositorMsg, CompositorProxy};
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use constellation_traits::EmbedderToConstellationMessage;
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use crossbeam_channel::Sender;
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use embedder_traits::{EventLoopWaker, RefreshDriver, ShutdownState};
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use profile_traits::{mem, time};
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use webrender::RenderApi;
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use webrender_api::DocumentId;
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pub use crate::compositor::{IOCompositor, WebRenderDebugOption};
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#[macro_use]
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mod tracing;
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mod compositor;
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mod refresh_driver;
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mod screenshot;
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mod touch;
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mod webview_manager;
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mod webview_renderer;
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/// Data used to construct a compositor.
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pub struct InitialCompositorState {
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/// A channel to the compositor.
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pub sender: CompositorProxy,
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/// A port on which messages inbound to the compositor can be received.
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pub receiver: RoutedReceiver<CompositorMsg>,
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/// A channel to the constellation.
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pub constellation_chan: Sender<EmbedderToConstellationMessage>,
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/// A channel to the time profiler thread.
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pub time_profiler_chan: time::ProfilerChan,
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/// A channel to the memory profiler thread.
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pub mem_profiler_chan: mem::ProfilerChan,
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/// A shared state which tracks whether Servo has started or has finished
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/// shutting down.
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pub shutdown_state: Rc<Cell<ShutdownState>>,
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/// Instance of webrender API
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pub webrender: webrender::Renderer,
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pub webrender_document: DocumentId,
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pub webrender_api: RenderApi,
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pub rendering_context: Rc<dyn RenderingContext>,
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pub webrender_gl: Rc<dyn gleam::gl::Gl>,
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#[cfg(feature = "webxr")]
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pub webxr_main_thread: webxr::MainThreadRegistry,
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/// An [`EventLoopWaker`] used in order to wake up the embedder when it is
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/// time to paint.
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pub event_loop_waker: Box<dyn EventLoopWaker>,
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/// An optional [`RefreshDriver`] provided by the embedder.
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pub refresh_driver: Option<Rc<dyn RefreshDriver>>,
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}
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