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Incremental Style Recalc

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This patch puts in the initial framework for incremental reflow. Nodes' styles
are no longer recalculated unless the node has changed.

I've been hacking on the general problem of incremental reflow for the past
couple weeks, and I've yet to get a full implementation that actually passes all
the reftests + wikipedia + cnn. Therefore, I'm going to try to land the different
parts of it one by one.

This patch only does incremental style recalc, without incremental flow
construction, inline-size bubbling, reflow, or display lists. Those will be coming
in that order as I finish them.

At least with this strategy, I can land a working version of incremental reflow,
even if not yet complete.

r? @pcwalton
This commit is contained in:
Clark Gaebel 2014-10-06 11:40:05 -04:00
parent 510f8a817f
commit d12c6e7383
31 changed files with 641 additions and 424 deletions
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16
components/net/image_cache_task.rs
View file

@ -227,8 +227,8 @@ impl ImageCache {
}
}
fn get_state(&self, url: Url) -> ImageState {
match self.state_map.find(&url) {
fn get_state(&self, url: &Url) -> ImageState {
match self.state_map.find(url) {
Some(state) => state.clone(),
None => Init
}
@ -239,7 +239,7 @@ impl ImageCache {
}
fn prefetch(&mut self, url: Url) {
match self.get_state(url.clone()) {
match self.get_state(&url) {
Init => {
let to_cache = self.chan.clone();
let resource_task = self.resource_task.clone();
@ -270,7 +270,7 @@ impl ImageCache {
}
fn store_prefetched_image_data(&mut self, url: Url, data: Result<Vec<u8>, ()>) {
match self.get_state(url.clone()) {
match self.get_state(&url) {
Prefetching(next_step) => {
match data {
Ok(data) => {
@ -298,7 +298,7 @@ impl ImageCache {
}
fn decode(&mut self, url: Url) {
match self.get_state(url.clone()) {
match self.get_state(&url) {
Init => fail!("decoding image before prefetch"),
Prefetching(DoNotDecode) => {
@ -338,7 +338,7 @@ impl ImageCache {
fn store_image(&mut self, url: Url, image: Option<Arc<Box<Image>>>) {
match self.get_state(url.clone()) {
match self.get_state(&url) {
Decoding => {
match image {
Some(image) => {
@ -376,7 +376,7 @@ impl ImageCache {
}
fn get_image(&self, url: Url, response: Sender<ImageResponseMsg>) {
match self.get_state(url.clone()) {
match self.get_state(&url) {
Init => fail!("request for image before prefetch"),
Prefetching(DoDecode) => response.send(ImageNotReady),
Prefetching(DoNotDecode) | Prefetched(..) => fail!("request for image before decode"),
@ -387,7 +387,7 @@ impl ImageCache {
}
fn wait_for_image(&mut self, url: Url, response: Sender<ImageResponseMsg>) {
match self.get_state(url.clone()) {
match self.get_state(&url) {
Init => fail!("request for image before prefetch"),
Prefetching(DoNotDecode) | Prefetched(..) => fail!("request for image before decode"),