Rendering a PDF locks up the render operation, never returning. Regression because of AppleJPEG.
Originator: | steipete | ||
Number: | rdar://19865091 | Date Originated: | 17-Feb-2015 10:36 PM |
Status: | Open | Resolved: | |
Product: | iOS SDK | Product Version: | 8.1.3 |
Classification: | Crash/Hang/Data Loss | Reproducible: | Always |
Summary: Rendering a PDF locks up the render operation, never returning. Steps to Reproduce: Open attached example. Run. Observe that it is looping after rendering the first image successfully. There is no crash, but the renderer is never finishing (thus, I can’t provide a crash log since it’s a hang) Expected Results: Should render as expected. Actual Results: Freezes/Loops somewhere in CGImageReadGetCachedImageBlockData https://gist.github.com/steipete/bc12497fd55dadc346b0 Regression: Seems to be related to AppleJPEG. Works fine in iOS 7. Notes: Removing CGContextSetInterpolationQuality fixes the issue. kCGInterpolationHigh or kCGInterpolationMedium cause a freeze. This took a crazy long time to find out… appreciate any feedback on this.
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Still happening with iOS 10.0.1 GM.
Reproduce on an iPad on real hardware. Does work in Simulator or on iPhone 6 Plus.
Can't provide example publicly, contains proprietary data.