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Make HTMLCanvasElement::fetch_all_data return a shared memory blob

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This commit is contained in:
Anthony Ramine 2018-11-21 12:51:49 +01:00
parent 804d964b7d
commit 9a8d03a0f3
5 changed files with 21 additions and 23 deletions
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6
components/script/dom/canvasrenderingcontext2d.rs
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@ -1296,7 +1296,11 @@ impl CanvasRenderingContext2DMethods for CanvasRenderingContext2D {
.ok_or(Error::InvalidState)?
},
CanvasImageSource::HTMLCanvasElement(ref canvas) => {
canvas.fetch_all_data().ok_or(Error::InvalidState)?
let (data, size) = canvas.fetch_all_data().ok_or(Error::InvalidState)?;
let data = data
.map(|data| data.to_vec())
.unwrap_or_else(|| vec![0; size.area() as usize * 4]);
(data, size)
},
CanvasImageSource::CSSStyleValue(ref value) => value
.get_url(self.base_url.clone())