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Clip display list based on frame viewport

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Instead of creating a display list for the entire page, only create one
for an area that expands around the viewport. On my machine this makes
incremental layout of http://timecube.com 50% faster.
This commit is contained in:
Martin Robinson 2014-10-22 14:00:09 -07:00
parent f4471f0602
commit c7327450ef
11 changed files with 130 additions and 34 deletions
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6
components/layout/block.rs
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@ -48,7 +48,7 @@ use geom::Size2D;
use gfx::display_list::BlockLevel;
use serialize::{Encoder, Encodable};
use servo_msg::compositor_msg::LayerId;
use servo_util::geometry::{Au, MAX_AU, MAX_RECT};
use servo_util::geometry::{Au, MAX_AU};
use servo_util::logical_geometry::{LogicalPoint, LogicalRect, LogicalSize};
use servo_util::opts;
use std::cmp::{max, min};
@ -1665,10 +1665,6 @@ impl Flow for BlockFlow {
// FIXME(#2795): Get the real container size
let container_size = Size2D::zero();
if self.is_root() {
self.base.clip_rect = MAX_RECT;
}
if self.base.flags.is_absolutely_positioned() {
let position_start = self.base.position.start.to_physical(self.base.writing_mode,
container_size);