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Implement origin-clean algorithm for ImageBitmap.

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This resolves #973.
This commit is contained in:
wolfbeast 2019-02-14 11:46:21 +01:00 • committed by Roy Tam
commit 1cc92006b6
10 changed files with 143 additions and 60 deletions
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14
dom/canvas/CanvasRenderingContext2D.h
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@ -40,6 +40,7 @@ class SourceSurface;
namespace dom {
class HTMLImageElementOrSVGImageElementOrHTMLCanvasElementOrHTMLVideoElementOrImageBitmap;
typedef HTMLImageElementOrSVGImageElementOrHTMLCanvasElementOrHTMLVideoElementOrImageBitmap CanvasImageSource;
class ImageBitmap;
class ImageData;
class StringOrCanvasGradientOrCanvasPattern;
class OwningStringOrCanvasGradientOrCanvasPattern;
@ -1151,6 +1152,19 @@ protected:
friend struct CanvasBidiProcessor;
friend class CanvasDrawObserver;
friend class ImageBitmap;
// For the origin-clean algorithm (mWriteOnly == !origin-clean)
// See https://html.spec.whatwg.org/multipage/imagebitmap-and-animations.html
void SetWriteOnly() {
mWriteOnly = true;
}
bool IsWriteOnly() const {
return mWriteOnly;
}
bool mWriteOnly;
};
} // namespace dom