NEW136593
PDFDocumentImage can permanently cache wrong-resolution bitmaps 
https://bugs.webkit.org/show_bug.cgi?id=136593
Summary PDFDocumentImage can permanently cache wrong-resolution bitmaps
Tim Horton
Reported 2014-09-05 16:47:54 PDT
PDFDocumentImage has an optimization to use a cached bitmap if we're doing low-quality interpolation, which was intended to only occur during a live resize and when we were guaranteed to get a high-quality paint shortly afterwards. However, on iOS there are some scenarios where we *always* use low-quality interpolation, and there are also CSS properties that allow content to specify that it always wants low-quality interpolation. This results in caching the PDF at the initial scale it's rendered at, and never re-rendering. We should only do this optimization if we're actually in a live resize, and will eventually get a high-quality paint.
Attachments
crazy WIP patch (31.86 KB, patch)
2014-09-05 16:54 PDT, Tim Horton 		no flags
DetailsFormatted DiffDiff
View All Add attachment proposed patch, testcase, etc.
Tim Horton
Comment 1 2014-09-05 16:54:59 PDT
Created attachment 237723 [details] crazy WIP patch
Radar WebKit Bug Importer
Comment 2 2014-09-05 17:06:35 PDT
<rdar://problem/18252268>
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