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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
Download patch file Download diff file Expand all files Collapse all files

69
components/gfx_traits/lib.rs
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@ -11,11 +11,7 @@
#![deny(unsafe_code)]
extern crate azure;
extern crate euclid;
extern crate heapsize;
extern crate layers;
extern crate msg;
extern crate profile_traits;
#[macro_use]
extern crate range;
extern crate rustc_serialize;
@ -24,16 +20,8 @@ extern crate serde;
extern crate serde_derive;
pub mod color;
mod paint_listener;
pub mod print_tree;
pub use paint_listener::PaintListener;
use azure::azure_hl::Color;
use euclid::Matrix4D;
use euclid::rect::Rect;
use layers::layers::BufferRequest;
use msg::constellation_msg::PipelineId;
use profile_traits::mem::ReportsChan;
use range::RangeIndex;
use std::fmt::{self, Debug, Formatter};
use std::sync::atomic::{ATOMIC_USIZE_INIT, AtomicUsize, Ordering};
@ -50,6 +38,20 @@ static NEXT_SPECIAL_STACKING_CONTEXT_ID: AtomicUsize = ATOMIC_USIZE_INIT;
/// Note that we assume that the top 16 bits of the address space are unused on the platform.
const SPECIAL_STACKING_CONTEXT_ID_MASK: usize = 0xffff;
// Units for use with euclid::length and euclid::scale_factor.
/// One hardware pixel.
///
/// This unit corresponds to the smallest addressable element of the display hardware.
#[derive(Copy, Clone, RustcEncodable, Debug)]
pub enum DevicePixel {}
/// One pixel in layer coordinate space.
///
/// This unit corresponds to a "pixel" in layer coordinate space, which after scaling and
/// transformation becomes a device pixel.
#[derive(Copy, Clone, RustcEncodable, Debug)]
pub enum LayerPixel {}
#[derive(Clone, Copy, Debug, PartialEq)]
pub enum LayerKind {
@ -128,33 +130,6 @@ impl LayerId {
}
}
/// All layer-specific information that the painting task sends to the compositor other than the
/// buffer contents of the layer itself.
#[derive(Copy, Clone, HeapSizeOf)]
pub struct LayerProperties {
/// An opaque ID. This is usually the address of the flow and index of the box within it.
pub id: LayerId,
/// The id of the parent layer.
pub parent_id: Option<LayerId>,
/// The position and size of the layer in pixels.
pub rect: Rect<f32>,
/// The background color of the layer.
pub background_color: Color,
/// The scrolling policy of this layer.
pub scroll_policy: ScrollPolicy,
/// The transform for this layer
pub transform: Matrix4D<f32>,
/// The perspective transform for this layer
pub perspective: Matrix4D<f32>,
/// The subpage that this layer represents. If this is `Some`, this layer represents an
/// iframe.
pub subpage_pipeline_id: Option<PipelineId>,
/// Whether this layer establishes a new 3d rendering context.
pub establishes_3d_context: bool,
/// Whether this layer scrolls its overflow area.
pub scrolls_overflow_area: bool,
}
/// A newtype struct for denoting the age of messages; prevents race conditions.
#[derive(PartialEq, Eq, Debug, Copy, Clone, PartialOrd, Ord, Deserialize, Serialize)]
pub struct Epoch(pub u32);
@ -272,19 +247,3 @@ int_range_index! {
#[derive(HeapSizeOf)]
struct ByteIndex(isize)
}
pub struct PaintRequest {
pub buffer_requests: Vec<BufferRequest>,
pub scale: f32,
pub layer_id: LayerId,
pub epoch: Epoch,
pub layer_kind: LayerKind,
}
pub enum ChromeToPaintMsg {
Paint(Vec<PaintRequest>, FrameTreeId),
PaintPermissionGranted,
PaintPermissionRevoked,
CollectReports(ReportsChan),
Exit,
}