84909 2012-04-25 17:00:48 -0700 Background tabs are fuzzy until repaint when deviceScaleFactor > 1 2012-04-25 18:07:04 -0700 1 1 1 Unclassified WebKit Layout and Rendering 528+ (Nightly build) Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 1 bdakin bdakin bdakin oldest_to_newest 610172 0 bdakin 2012-04-25 17:00:48 -0700 In WebKit2, if you open background tabs with a deviceScaleFactor > 1, they will appear fuzzy at first when you bring them to the foreground. A repaint fixes the problem. <rdar://problem/11312064> Patch forthcoming. 610184 1 138903 bdakin 2012-04-25 17:09:06 -0700 Created attachment 138903 Patch 610203 2 138903 darin 2012-04-25 17:26:52 -0700 Comment on attachment 138903 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=138903&action=review > Source/WebKit2/Platform/cg/CGUtilities.h:32 > +void paintBitmapContext(CGContextRef, CGContextRef bitmapContext, CGPoint destination, CGRect source, float scaleFactor); Why float instead of CGFloat? > Source/WebKit2/UIProcess/mac/BackingStoreMac.mm:101 > + IntSize scrolledRectSize = m_scrolledRect.size(); > + scrolledRectSize.scale(m_deviceScaleFactor); I think it’s a little unclear to have a local variable named scrolledRectSize that is not the same as m_scrolledRect.size(). Maybe its should be named scrolledRectPixelsSize or scaledSize or something like that? > Source/WebKit2/UIProcess/mac/BackingStoreMac.mm:109 > - CGContextTranslateCTM(context.get(), 0, m_scrolledRect.size().height()); > + CGContextTranslateCTM(context.get(), 0, m_scrolledRect.height()); This change seems to be unneeded. I am guessing you changed this to use scrolledRectSize and then later changed it back. 610215 3 bdakin 2012-04-25 17:39:41 -0700 (In reply to comment #2) > (From update of attachment 138903 [details]) > View in context: https://bugs.webkit.org/attachment.cgi?id=138903&action=review > > > Source/WebKit2/Platform/cg/CGUtilities.h:32 > > +void paintBitmapContext(CGContextRef, CGContextRef bitmapContext, CGPoint destination, CGRect source, float scaleFactor); > > Why float instead of CGFloat? > No good reason. Will fix. > > Source/WebKit2/UIProcess/mac/BackingStoreMac.mm:101 > > + IntSize scrolledRectSize = m_scrolledRect.size(); > > + scrolledRectSize.scale(m_deviceScaleFactor); > > I think it’s a little unclear to have a local variable named scrolledRectSize that is not the same as m_scrolledRect.size(). Maybe its should be named scrolledRectPixelsSize or scaledSize or something like that? > Will change. > > Source/WebKit2/UIProcess/mac/BackingStoreMac.mm:109 > > - CGContextTranslateCTM(context.get(), 0, m_scrolledRect.size().height()); > > + CGContextTranslateCTM(context.get(), 0, m_scrolledRect.height()); > > This change seems to be unneeded. I am guessing you changed this to use scrolledRectSize and then later changed it back. Good catch. Will fix. Thanks! 610222 4 bdakin 2012-04-25 17:45:58 -0700 Committed change: http://trac.webkit.org/changeset/115266 610230 5 138903 darin 2012-04-25 17:52:51 -0700 Comment on attachment 138903 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=138903&action=review >>> Source/WebKit2/Platform/cg/CGUtilities.h:32 >>> void paintImage(CGContextRef, CGImageRef, CGFloat scaleFactor, CGPoint destination, CGRect source); >>> -void paintBitmapContext(CGContextRef, CGContextRef bitmapContext, CGPoint destination, CGRect source); >>> +void paintBitmapContext(CGContextRef, CGContextRef bitmapContext, CGPoint destination, CGRect source, float scaleFactor); >> >> Why float instead of CGFloat? > > No good reason. Will fix. On further reflection, it might make more sense to keep the argument order the same for these two functions. As a follow-up cleanup patch we could move the scale factor back before the destination rect to match paintImage. 610253 6 bdakin 2012-04-25 18:07:04 -0700 (In reply to comment #5) > On further reflection, it might make more sense to keep the argument order the same for these two functions. As a follow-up cleanup patch we could move the scale factor back before the destination rect to match paintImage. Done: http://trac.webkit.org/changeset/115270 138903 2012-04-25 17:09:06 -0700 2012-04-25 17:52:51 -0700 Patch for-review.txt text/plain 6804 bdakin SW5kZXg6IFNvdXJjZS9XZWJLaXQyL0NoYW5nZUxvZwo9PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09Ci0tLSBTb3VyY2UvV2Vi S2l0Mi9DaGFuZ2VMb2cJKHJldmlzaW9uIDExNTI2MSkKKysrIFNvdXJjZS9XZWJLaXQyL0NoYW5n ZUxvZwkod29ya2luZyBjb3B5KQpAQCAtMSwzICsxLDI5IEBACisyMDEyLTA0LTI1ICBCZXRoIERh a2luICA8YmRha2luQGFwcGxlLmNvbT4KKworICAgICAgICBodHRwczovL2J1Z3Mud2Via2l0Lm9y Zy9zaG93X2J1Zy5jZ2k/aWQ9ODQ5MDkKKyAgICAgICAgQmFja2dyb3VuZCB0YWJzIGFyZSBmdXp6 eSB1bnRpbCByZXBhaW50IHdoZW4gZGV2aWNlU2NhbGVGYWN0b3IgPiAxCisKKyAgICAgICAgUmV2 aWV3ZWQgYnkgTk9CT0RZIChPT1BTISkuCisKKyAgICAgICAgQmFja2luZ1N0b3JlTWFjIHBhaW50 cyBpbnRvIGEgQml0bWFwIGluc3RlYWQgb2YgYSBDR0xheWVyIHdoZW4gdGhlcmUgaXMgbm8gCisg ICAgICAgIGNvbnRhaW5pbmcgd2luZG93LiBUaGF0IGJpdG1hcCBpcyB1c2VkIGZvciB0aGUgaW5p dGlhbCBwYWludCB3aGVuIGEgYmFja2dyb3VuZCB0YWIgCisgICAgICAgIGZpcnN0IGNvbWVzIHRv 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