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Remove old rendering backend.

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This removes paint threads, rust-layers dependency, and changes
optional webrender types to be required.

The use_webrender option has been removed, however I've left
the "-w" command line option in place so that wpt
runner can continue to pass that. Once it's removed from there
we can also remove the -w option.

Once this stage is complete, it should be fine to change the
display list building code to generate webrender display
lists directly and avoid the conversion step.
This commit is contained in:
Glenn Watson 2016-10-12 10:13:27 +10:00
parent 4af21e3ae1
commit acfdfd2fa9
55 changed files with 422 additions and 3611 deletions
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31
components/layout/block.rs
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@ -31,7 +31,7 @@ use app_units::{Au, MAX_AU};
use context::{LayoutContext, SharedLayoutContext};
use display_list_builder::{BorderPaintingMode, DisplayListBuildState, FragmentDisplayListBuilding};
use display_list_builder::BlockFlowDisplayListBuilding;
use euclid::{Point2D, Rect, Size2D};
use euclid::{Point2D, Size2D};
use floats::{ClearType, FloatKind, Floats, PlacementInfo};
use flow::{self, BaseFlow, EarlyAbsolutePositionInfo, Flow, FlowClass, ForceNonfloatedFlag};
use flow::{BLOCK_POSITION_IS_STATIC, CLEARS_LEFT, CLEARS_RIGHT};
@ -64,10 +64,6 @@ use style::properties::ServoComputedValues;
use style::values::computed::{LengthOrNone, LengthOrPercentageOrNone};
use style::values::computed::{LengthOrPercentage, LengthOrPercentageOrAuto};
use util::clamp;
use util::geometry::max_rect;
/// The number of screens of data we're allowed to generate display lists for in each direction.
const DISPLAY_PORT_SIZE_FACTOR: i32 = 8;
/// Information specific to floated blocks.
#[derive(Clone, RustcEncodable)]
@ -1959,7 +1955,7 @@ impl Flow for BlockFlow {
}
}
fn compute_absolute_position(&mut self, layout_context: &SharedLayoutContext) {
fn compute_absolute_position(&mut self, _layout_context: &SharedLayoutContext) {
if self.base.flags.contains(NEEDS_LAYER) {
self.fragment.flags.insert(HAS_LAYER)
}
@ -1970,7 +1966,6 @@ impl Flow for BlockFlow {
if self.is_root() {
self.base.clip = ClippingRegion::max();
self.base.stacking_relative_position_of_display_port = max_rect();
}
let transform_style = self.fragment.style().get_used_transform_style();
@ -1983,7 +1978,6 @@ impl Flow for BlockFlow {
(overflow_x::T::auto, _) | (overflow_x::T::scroll, _) |
(_, overflow_x::T::auto) | (_, overflow_x::T::scroll) => {
self.base.clip = ClippingRegion::max();
self.base.stacking_relative_position_of_display_port = max_rect();
}
_ => {}
}
@ -2085,25 +2079,6 @@ impl Flow for BlockFlow {
self.base.stacking_relative_position + relative_offset
};
let stacking_relative_position_of_display_port_for_children =
if is_stacking_context || self.is_root() {
let visible_rect =
match layout_context.visible_rects.get(&self.layer_id()) {
Some(visible_rect) => *visible_rect,
None => Rect::new(Point2D::zero(), layout_context.style_context.viewport_size),
};
let viewport_size = layout_context.style_context.viewport_size;
visible_rect.inflate(viewport_size.width * DISPLAY_PORT_SIZE_FACTOR,
viewport_size.height * DISPLAY_PORT_SIZE_FACTOR)
} else if is_stacking_context {
self.base
.stacking_relative_position_of_display_port
.translate(&-self.base.stacking_relative_position)
} else {
self.base.stacking_relative_position_of_display_port
};
let stacking_relative_border_box =
self.fragment
.stacking_relative_border_box(&self.base.stacking_relative_position,
@ -2168,8 +2143,6 @@ impl Flow for BlockFlow {
flow::mut_base(kid).late_absolute_position_info =
late_absolute_position_info_for_children;
flow::mut_base(kid).stacking_relative_position_of_display_port =
stacking_relative_position_of_display_port_for_children;
// This clipping region is in our coordinate system. The child will fix it up to be in
// its own coordinate system by itself if necessary.