159933 2016-07-19 11:49:46 -0700 [iOS] REGRESSION(203378): PDFDocumentImage::updateCachedImageIfNeeded() uses the unscaled size when deciding whether to cache the PDF image 2016-07-22 11:46:45 -0700 1 1 1 Unclassified WebKit Images WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar, Regression P2 Normal --- 1 sabouhallawa sabouhallawa commit-queue dino simon.fraser thorton oldest_to_newest 1212447 0 sabouhallawa 2016-07-19 11:49:46 -0700 The r203378 did not actually fix the https://bugs.webkit.org/show_bug.cgi?id=158715 because although we have the right steps to decide whether to cache the PDF image or not, we are using the unscaled size which is wrong. The image has to be created scaled with the context.scaleFactor(). This may lead to allowing caching a PDF image which will cause the WebKit to jetsam on iOS. 1212449 1 284026 sabouhallawa 2016-07-19 11:52:00 -0700 Created attachment 284026 Patch 1212470 2 sabouhallawa 2016-07-19 12:50:00 -0700 <rdar://problem/27430450> 1213617 3 284026 simon.fraser 2016-07-22 10:37:26 -0700 Comment on attachment 284026 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=284026&action=review > Source/WebCore/ChangeLog:8 > + We need to use the scaled size when deciding whether to cache the PDF image or not. Why? > Source/WebCore/platform/graphics/cg/PDFDocumentImage.cpp:225 > #if PLATFORM(IOS) > m_cachedImageRect = cachedImageRect(context, dstRect); > +#else > + m_cachedImageRect = dstRect; > +#endif It would be good to turn these #if PLATFORM(IOS) into something more descriptive, that explains why iOS needs special behavior. 1213634 4 284347 sabouhallawa 2016-07-22 11:00:51 -0700 Created attachment 284347 Patch 1213637 5 284348 sabouhallawa 2016-07-22 11:11:16 -0700 Created attachment 284348 Patch 1213665 6 284348 commit-queue 2016-07-22 11:46:40 -0700 Comment on attachment 284348 Patch Clearing flags on attachment: 284348 Committed r203606: <http://trac.webkit.org/changeset/203606> 1213666 7 commit-queue 2016-07-22 11:46:45 -0700 All reviewed patches have been landed. Closing bug. 284026 2016-07-19 11:52:00 -0700 2016-07-22 11:00:47 -0700 Patch bug-159933-20160719115104.patch text/plain 2296 sabouhallawa SW5kZXg6IFNvdXJjZS9XZWJDb3JlL0NoYW5nZUxvZwo9PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09Ci0tLSBTb3VyY2UvV2Vi Q29yZS9DaGFuZ2VMb2cJKHJldmlzaW9uIDIwMzQxMikKKysrIFNvdXJjZS9XZWJDb3JlL0NoYW5n ZUxvZwkod29ya2luZyBjb3B5KQpAQCAtMSwzICsxLDE1IEBACisyMDE2LTA3LTE5ICBTYWlkIEFi b3UtSGFsbGF3YSAgPHNhYm91aGFsbGF3YUBhcHBsZS5jb20+CisKKyAgICAgICAgW2lPU10gUkVH UkVTU0lPTigyMDMzNzgpOiBQREZEb2N1bWVudEltYWdlOjp1cGRhdGVDYWNoZWRJbWFnZUlmTmVl ZGVkKCkgdXNlcyB0aGUgdW5zY2FsZWQgc2l6ZSB3aGVuIGRlY2lkaW5nIHdoZXRoZXIgdG8gY2Fj aGUgdGhlIFBERiBpbWFnZQorICAgICAgICBodHRwczovL2J1Z3Mud2Via2l0Lm9yZy9zaG93X2J1 Zy5jZ2k/aWQ9MTU5OTMzCisKKyAgICAgICAgUmV2aWV3ZWQgYnkgTk9CT0RZIChPT1BTISkuCisK KyAgICAgICAgV2UgbmVlZCB0byB1c2UgdGhlIHNjYWxlZCBzaXplIHdoZW4gZGVjaWRpbmcgd2hl dGhlciB0byBjYWNoZSB0aGUgUERGIGltYWdlIG9yIG5vdC4KKworICAgICAgICAqIHBsYXRmb3Jt 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