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Fixed scaling artefacts in paint worklets caused by zoom and hidpi.

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This commit is contained in:
Alan Jeffrey 2017-06-23 11:07:02 -05:00
parent e19fefcb47
commit caa3585219
24 changed files with 160 additions and 77 deletions
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12
components/script_traits/lib.rs
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@ -9,7 +9,6 @@
#![deny(missing_docs)]
#![deny(unsafe_code)]
extern crate app_units;
extern crate bluetooth_traits;
extern crate canvas_traits;
extern crate cookie as cookie_rs;
@ -39,7 +38,6 @@ extern crate webvr_traits;
mod script_msg;
pub mod webdriver_msg;
use app_units::Au;
use bluetooth_traits::BluetoothRequest;
use canvas_traits::CanvasData;
use devtools_traits::{DevtoolScriptControlMsg, ScriptToDevtoolsControlMsg, WorkerId};
@ -68,6 +66,7 @@ use std::fmt;
use std::sync::Arc;
use std::sync::mpsc::{Receiver, Sender, RecvTimeoutError};
use style_traits::CSSPixel;
use style_traits::DevicePixel;
use webdriver_msg::{LoadStatus, WebDriverScriptCommand};
use webrender_api::ClipId;
use webvr_traits::{WebVREvent, WebVRMsg};
@ -687,12 +686,6 @@ pub struct ScrollState {
pub scroll_offset: Vector2D<f32>,
}
/// One hardware pixel.
///
/// This unit corresponds to the smallest addressable element of the display hardware.
#[derive(Copy, Clone, Debug)]
pub enum DevicePixel {}
/// Data about the window size.
#[derive(Copy, Clone, Deserialize, Serialize, HeapSizeOf)]
pub struct WindowSizeData {
@ -828,7 +821,8 @@ impl From<RecvTimeoutError> for PaintWorkletError {
pub trait Painter: Sync + Send {
/// https://drafts.css-houdini.org/css-paint-api/#draw-a-paint-image
fn draw_a_paint_image(&self,
concrete_object_size: Size2D<Au>,
size: TypedSize2D<f32, CSSPixel>,
zoom: ScaleFactor<f32, CSSPixel, DevicePixel>,
properties: Vec<(Atom, String)>,
sender: IpcSender<CanvasData>);
}