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canvas: Remove all the canvas layerization infrastructure

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It was never complete, and with webrender as a backend the way we render
WebGL contexts has changed a bit.

This should remove quite a bit of overhead.
This commit is contained in:
Emilio Cobos Álvarez 2016-03-23 16:29:19 +01:00
parent ef8d36d208
commit a02daf7144
8 changed files with 6 additions and 90 deletions
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7
components/layout/context.rs
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@ -8,7 +8,6 @@
#![allow(unsafe_code)]
use app_units::Au;
use canvas_traits::CanvasMsg;
use euclid::Rect;
use fnv::FnvHasher;
use gfx::display_list::WebRenderImageInfo;
@ -16,7 +15,7 @@ use gfx::font_cache_thread::FontCacheThread;
use gfx::font_context::FontContext;
use gfx_traits::LayerId;
use heapsize::HeapSizeOf;
use ipc_channel::ipc::{self, IpcSender, IpcSharedMemory};
use ipc_channel::ipc::{self, IpcSharedMemory};
use net_traits::image::base::Image;
use net_traits::image_cache_thread::{ImageCacheChan, ImageCacheThread, ImageResponse, ImageState};
use net_traits::image_cache_thread::{ImageOrMetadataAvailable, UsePlaceholder};
@ -24,7 +23,6 @@ use std::cell::{RefCell, RefMut};
use std::collections::HashMap;
use std::hash::BuildHasherDefault;
use std::rc::Rc;
use std::sync::mpsc::Sender;
use std::sync::{Arc, Mutex, RwLock};
use style::context::{LocalStyleContext, StyleContext};
use style::matching::{ApplicableDeclarationsCache, StyleSharingCandidateCache};
@ -95,9 +93,6 @@ pub struct SharedLayoutContext {
/// The URL.
pub url: Url,
/// A channel to send canvas renderers to paint thread, in order to correctly paint the layers
pub canvas_layers_sender: Mutex<Sender<(LayerId, IpcSender<CanvasMsg>)>>,
/// The visible rects for each layer, as reported to us by the compositor.
pub visible_rects: Arc<HashMap<LayerId, Rect<Au>, BuildHasherDefault<FnvHasher>>>,