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Avoid copying pixels in ctx.putImageData sometimes

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This commit is contained in:
Anthony Ramine 2018-10-06 02:58:45 +02:00
parent 19f40cdf0b
commit 75e6f5dfaa
6 changed files with 53 additions and 41 deletions
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3
components/script/dom/htmlcanvaselement.rs
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@ -369,13 +369,14 @@ impl HTMLCanvasElementMethods for HTMLCanvasElement {
// Step 3.
let raw_data = match *self.context.borrow() {
Some(CanvasContext::Context2d(ref context)) => {
// FIXME(nox): This shouldn't go through ImageData etc.
let image_data = context.GetImageData(
Finite::wrap(0f64),
Finite::wrap(0f64),
Finite::wrap(self.Width() as f64),
Finite::wrap(self.Height() as f64),
)?;
image_data.get_data_array()
image_data.to_vec()
},
Some(CanvasContext::WebGL(ref context)) => {
match context.get_image_data(self.Width(), self.Height()) {