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9195344b75
Instead of exposing many different kinds of messages to the compositor that are routed through the constellation, expose a single message type which can be sent across IPC channels. In addition, this IPC channel and the route to the crossbeam channel with the compositor is created along with the `CompositorProxy`, simplifying what needs to be passed around during pipeline initialization. Previously, some image updates (from video) were sent over IPC with a special serialization routine and some were sent via crossbeam channels (canvas). Now all updates go over the IPC channel `IpcSharedMemory` is used to avoid serialization penalties. This should improve performance and reduce copies for video, but add a memory copy overhead for canvas. This will improve in the future when canvas renders directly into a texture. All-in-all this is a simplification which opens the path toward having a standard compositor API and reduces the number of duplicate messages and proxying that had to happen in libservo. Signed-off-by: Martin Robinson <mrobinson@igalia.com>
55 lines
2.6 KiB
Rust
55 lines
2.6 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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/// Log an event from constellation at trace level.
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/// - To disable tracing: RUST_LOG='compositor<constellation@=off'
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/// - To enable tracing: RUST_LOG='compositor<constellation@'
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macro_rules! trace_msg_from_constellation {
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// This macro only exists to put the docs in the same file as the target prefix,
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// so the macro definition is always the same.
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($event:expr, $($rest:tt)+) => {
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::log::trace!(target: $crate::tracing::LogTarget::log_target(&$event), $($rest)+)
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};
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}
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/// Get the log target for an event, as a static string.
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pub(crate) trait LogTarget {
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fn log_target(&self) -> &'static str;
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}
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mod from_constellation {
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use super::LogTarget;
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macro_rules! target {
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($($name:literal)+) => {
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concat!("compositor<constellation@", $($name),+)
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};
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}
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impl LogTarget for compositing_traits::CompositorMsg {
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fn log_target(&self) -> &'static str {
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match self {
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Self::ShutdownComplete => target!("ShutdownComplete"),
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Self::ChangeRunningAnimationsState(..) => target!("ChangeRunningAnimationsState"),
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Self::CreateOrUpdateWebView(..) => target!("CreateOrUpdateWebView"),
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Self::RemoveWebView(..) => target!("RemoveWebView"),
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Self::MoveResizeWebView(..) => target!("MoveResizeWebView"),
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Self::ShowWebView(..) => target!("ShowWebView"),
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Self::HideWebView(..) => target!("HideWebView"),
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Self::RaiseWebViewToTop(..) => target!("RaiseWebViewToTop"),
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Self::TouchEventProcessed(..) => target!("TouchEventProcessed"),
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Self::CreatePng(..) => target!("CreatePng"),
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Self::IsReadyToSaveImageReply(..) => target!("IsReadyToSaveImageReply"),
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Self::SetThrottled(..) => target!("SetThrottled"),
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Self::NewWebRenderFrameReady(..) => target!("NewWebRenderFrameReady"),
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Self::PipelineExited(..) => target!("PipelineExited"),
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Self::PendingPaintMetric(..) => target!("PendingPaintMetric"),
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Self::LoadComplete(..) => target!("LoadComplete"),
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Self::WebDriverMouseButtonEvent(..) => target!("WebDriverMouseButtonEvent"),
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Self::WebDriverMouseMoveEvent(..) => target!("WebDriverMouseMoveEvent"),
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Self::CrossProcess(_) => target!("CrossProcess"),
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}
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}
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}
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}
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