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NoCopyRendering experiment: Fix possible memory leak if image node rendering is canceled #trivial (#765)

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* Fix memory leak if image node rendering is canceled

* Update comment
This commit is contained in:
Adlai Holler 2018-01-23 10:45:34 -08:00 committed by GitHub
parent 9b8a919a93
commit c3ae4474d0
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2 changed files with 5 additions and 3 deletions
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5
Source/ASImageNode.mm
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@ -522,10 +522,9 @@ static ASDN::StaticMutex& cacheLock = *new ASDN::StaticMutex;
key.didDisplayNodeContentWithRenderingContext(context, drawParameters);
}
// The following `UIGraphicsGetImageFromCurrentImageContext` call will commonly take more than 20ms on an
// A5 processor. Check for cancellation before we call it.
// Check cancellation one last time before forming image.
if (isCancelled()) {
UIGraphicsEndImageContext();
ASGraphicsEndImageContext();
return nil;
}

3
Source/Details/ASGraphicsContext.h
View File

@ -23,6 +23,9 @@
*
* The API mirrors the UIGraphics API, with the exception that forming an image
* ends the context as well.
*
* Note: You must not mix-and-match between ASGraphics* and UIGraphics* functions
* within the same drawing operation.
*/
NS_ASSUME_NONNULL_BEGIN