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https://github.com/servo/servo.git
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Proxy all WR interactions for layout/font/script/canvas threads to the compositor
thread. There is now a single RenderApi that is used, and all transactions are serialized through the compositor.
This commit is contained in:
Josh Matthews
parent
a6016b3a62
commit
75efaa95f5
16 changed files with 344 additions and 261 deletions
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@ -3,7 +3,9 @@
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
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use crate::compositor_thread::CompositorReceiver;
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use crate::compositor_thread::{InitialCompositorState, Msg};
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use crate::compositor_thread::{
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InitialCompositorState, Msg, WebrenderCanvasMsg, WebrenderFontMsg, WebrenderMsg,
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};
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#[cfg(feature = "gl")]
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use crate::gl;
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use crate::touch::{TouchAction, TouchHandler};
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@ -11,10 +13,11 @@ use crate::windowing::{
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self, EmbedderCoordinates, MouseWindowEvent, WebRenderDebugOption, WindowMethods,
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};
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use crate::{CompositionPipeline, ConstellationMsg, SendableFrameTree};
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use canvas::canvas_paint_thread::ImageUpdate;
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use crossbeam_channel::Sender;
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use embedder_traits::Cursor;
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use euclid::{Point2D, Rect, Scale, Vector2D};
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use gfx_traits::Epoch;
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use gfx_traits::{Epoch, FontData};
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#[cfg(feature = "gl")]
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use image::{DynamicImage, ImageFormat};
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use ipc_channel::ipc;
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@ -40,8 +43,6 @@ use std::fs::{create_dir_all, File};
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use std::io::Write;
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use std::num::NonZeroU32;
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use std::rc::Rc;
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use std::sync::atomic::{AtomicBool, Ordering};
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use std::sync::Arc;
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use style_traits::viewport::ViewportConstraints;
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use style_traits::{CSSPixel, DevicePixel, PinchZoomFactor};
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use time::{now, precise_time_ns, precise_time_s};
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@ -218,7 +219,7 @@ pub struct IOCompositor<Window: WindowMethods + ?Sized> {
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/// True if a WR frame render has been requested. Screenshots
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/// taken before the render is complete will not reflect the
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/// most up to date rendering.
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waiting_on_pending_frame: Arc<AtomicBool>,
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waiting_on_pending_frame: bool,
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}
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#[derive(Clone, Copy)]
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@ -334,7 +335,7 @@ impl<Window: WindowMethods + ?Sized> IOCompositor<Window> {
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is_running_problem_test,
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exit_after_load,
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convert_mouse_to_touch,
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waiting_on_pending_frame: state.pending_wr_frame,
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waiting_on_pending_frame: false,
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}
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}
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@ -443,7 +444,7 @@ impl<Window: WindowMethods + ?Sized> IOCompositor<Window> {
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},
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(Msg::Recomposite(reason), ShutdownState::NotShuttingDown) => {
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self.waiting_on_pending_frame.store(false, Ordering::SeqCst);
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self.waiting_on_pending_frame = false;
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self.composition_request = CompositionRequest::CompositeNow(reason)
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},
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@ -474,7 +475,7 @@ impl<Window: WindowMethods + ?Sized> IOCompositor<Window> {
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self.ready_to_save_state,
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ReadyState::WaitingForConstellationReply
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);
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if is_ready && !self.waiting_on_pending_frame.load(Ordering::SeqCst) {
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if is_ready && !self.waiting_on_pending_frame {
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self.ready_to_save_state = ReadyState::ReadyToSaveImage;
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if self.is_running_problem_test {
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println!("ready to save image!");
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@ -569,6 +570,10 @@ impl<Window: WindowMethods + ?Sized> IOCompositor<Window> {
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}
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},
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(Msg::Webrender(msg), ShutdownState::NotShuttingDown) => {
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self.handle_webrender_message(msg);
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},
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// When we are shutting_down, we need to avoid performing operations
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// such as Paint that may crash because we have begun tearing down
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// the rest of our resources.
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@ -578,6 +583,148 @@ impl<Window: WindowMethods + ?Sized> IOCompositor<Window> {
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true
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}
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/// Accept messages from content processes that need to be relayed to the WebRender
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/// instance in the parent process.
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fn handle_webrender_message(&mut self, msg: WebrenderMsg) {
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match msg {
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WebrenderMsg::Layout(script_traits::WebrenderMsg::SendInitialTransaction(
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_doc,
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pipeline,
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)) => {
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self.waiting_on_pending_frame = true;
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let mut txn = webrender_api::Transaction::new();
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txn.set_display_list(
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webrender_api::Epoch(0),
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None,
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Default::default(),
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(pipeline, Default::default(), Default::default()),
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false,
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);
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self.webrender_api
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.send_transaction(self.webrender_document, txn);
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},
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WebrenderMsg::Layout(script_traits::WebrenderMsg::SendScrollNode(
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_doc,
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point,
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scroll_id,
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clamping,
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)) => {
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let mut txn = webrender_api::Transaction::new();
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txn.scroll_node_with_id(point, scroll_id, clamping);
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self.webrender_api
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.send_transaction(self.webrender_document, txn);
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},
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WebrenderMsg::Layout(script_traits::WebrenderMsg::SendDisplayList(
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_doc,
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epoch,
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size,
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pipeline,
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size2,
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data,
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descriptor,
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)) => {
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self.waiting_on_pending_frame = true;
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let mut txn = webrender_api::Transaction::new();
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txn.set_display_list(
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epoch,
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None,
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size,
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(
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pipeline,
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size2,
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webrender_api::BuiltDisplayList::from_data(data, descriptor),
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),
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true,
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);
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txn.generate_frame();
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self.webrender_api
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.send_transaction(self.webrender_document, txn);
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},
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WebrenderMsg::Layout(script_traits::WebrenderMsg::HitTest(
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_doc,
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pipeline,
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point,
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flags,
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sender,
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)) => {
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let result =
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self.webrender_api
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.hit_test(self.webrender_document, pipeline, point, flags);
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let _ = sender.send(result);
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},
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WebrenderMsg::Layout(script_traits::WebrenderMsg::GenerateImageKey(sender)) |
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WebrenderMsg::Net(net_traits::WebrenderImageMsg::GenerateImageKey(sender)) => {
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let _ = sender.send(self.webrender_api.generate_image_key());
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},
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WebrenderMsg::Layout(script_traits::WebrenderMsg::UpdateImages(updates)) => {
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let mut txn = webrender_api::Transaction::new();
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for update in updates {
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match update {
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script_traits::ImageUpdate::AddImage(key, desc, data) => {
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txn.add_image(key, desc, data, None)
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},
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script_traits::ImageUpdate::DeleteImage(key) => txn.delete_image(key),
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script_traits::ImageUpdate::UpdateImage(key, desc, data) => {
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txn.update_image(key, desc, data, &webrender_api::DirtyRect::All)
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},
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}
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}
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self.webrender_api
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.send_transaction(self.webrender_document, txn);
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},
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WebrenderMsg::Net(net_traits::WebrenderImageMsg::AddImage(key, desc, data)) => {
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let mut txn = webrender_api::Transaction::new();
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txn.add_image(key, desc, data, None);
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self.webrender_api
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.send_transaction(self.webrender_document, txn);
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},
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WebrenderMsg::Font(WebrenderFontMsg::AddFontInstance(font_key, size, sender)) => {
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let key = self.webrender_api.generate_font_instance_key();
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let mut txn = webrender_api::Transaction::new();
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txn.add_font_instance(key, font_key, size, None, None, Vec::new());
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self.webrender_api
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.send_transaction(self.webrender_document, txn);
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let _ = sender.send(key);
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},
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WebrenderMsg::Font(WebrenderFontMsg::AddFont(data, sender)) => {
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let font_key = self.webrender_api.generate_font_key();
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let mut txn = webrender_api::Transaction::new();
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match data {
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FontData::Raw(bytes) => txn.add_raw_font(font_key, bytes, 0),
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FontData::Native(native_font) => txn.add_native_font(font_key, native_font),
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}
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self.webrender_api
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.send_transaction(self.webrender_document, txn);
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let _ = sender.send(font_key);
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},
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WebrenderMsg::Canvas(WebrenderCanvasMsg::GenerateKey(sender)) => {
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let _ = sender.send(self.webrender_api.generate_image_key());
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},
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WebrenderMsg::Canvas(WebrenderCanvasMsg::UpdateImages(updates)) => {
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let mut txn = webrender_api::Transaction::new();
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for update in updates {
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match update {
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ImageUpdate::Add(key, descriptor, data) => {
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txn.add_image(key, descriptor, data, None)
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},
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ImageUpdate::Update(key, descriptor, data) => {
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txn.update_image(key, descriptor, data, &webrender_api::DirtyRect::All)
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},
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ImageUpdate::Delete(key) => txn.delete_image(key),
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}
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}
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self.webrender_api
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.send_transaction(self.webrender_document, txn);
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},
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}
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}
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/// Sets or unsets the animations-running flag for the given pipeline, and schedules a
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/// recomposite if necessary.
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fn change_running_animations_state(
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