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Store one RenderState per-pipeline in the Compositor

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This can later be used to decide whether the entire pipeline is ready
for rendering.
This commit is contained in:
Bryan Bell 2014-08-28 15:02:23 -07:00 • committed by Martin Robinson
parent c182308350
commit 0e86679464
4 changed files with 16 additions and 10 deletions
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13
components/compositing/compositor.rs
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@ -104,6 +104,9 @@ pub struct IOCompositor {
/// Current display/reflow status of each pipeline.
ready_states: HashMap<PipelineId, ReadyState>,
/// Current render status of each pipeline.
render_states: HashMap<PipelineId, RenderState>,
/// Whether the page being rendered has loaded completely.
/// Differs from ReadyState because we can finish loading (ready)
/// many times for a single page.
@ -167,6 +170,7 @@ impl IOCompositor {
zoom_action: false,
zoom_time: 0f64,
ready_states: HashMap::new(),
render_states: HashMap::new(),
load_complete: false,
constellation_chan: constellation_chan,
time_profiler_chan: time_profiler_chan,
@ -280,8 +284,8 @@ impl IOCompositor {
self.change_ready_state(pipeline_id, ready_state);
}
(Ok(ChangeRenderState(render_state)), NotShuttingDown) => {
self.change_render_state(render_state);
(Ok(ChangeRenderState(pipeline_id, render_state)), NotShuttingDown) => {
self.change_render_state(pipeline_id, render_state);
}
(Ok(RenderMsgDiscarded), NotShuttingDown) => {
@ -348,7 +352,10 @@ impl IOCompositor {
}
fn change_render_state(&mut self, render_state: RenderState) {
fn change_render_state(&mut self, pipeline_id: PipelineId, render_state: RenderState) {
self.render_states.insert_or_update_with(pipeline_id,
render_state,
|_key, value| *value = render_state);
self.window.set_render_state(render_state);
if render_state == IdleRenderState {
self.composite_ready = true;