200726 2019-08-14 11:46:42 -0700 [iOS](REGRESSION: r200487): WebKit.RequestActivatedElementInfoForRotatedImage fails on iOS 13 2019-08-14 18:17:38 -0700 1 1 1 Unclassified WebKit Images WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 1 sabouhallawa sabouhallawa commit-queue simon.fraser thorton webkit-bug-importer oldest_to_newest 1561257 0 sabouhallawa 2019-08-14 11:46:42 -0700 The API test WebKit.RequestActivatedElementInfoForRotatedImage has been failing on iOS 13. It fails because it gets the image pixels by copying the data of the image data provider. I mistakenly was assuming that the data provider has to be point directly to pixels data which is not necessarily true. The iOS 13 underlying components have changed such that the data provider is not an array of the pixels' colors anymore. To get the pixels as an array of colors, the image should be drawn to a memory context instead. Then the backing memory buffer can be accessed to get the image pixels' colors. 1561259 1 376285 sabouhallawa 2019-08-14 11:48:08 -0700 Created attachment 376285 Patch 1561261 2 sabouhallawa 2019-08-14 11:49:30 -0700 <rdar://problem/54143486> 1561274 3 376285 simon.fraser 2019-08-14 12:20:53 -0700 Comment on attachment 376285 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=376285&action=review > Tools/ChangeLog:3 > + [iOS](REGRESSION: r200487): Get the CGImage pixels by drawing it into a memory context This title is confusing. It says REGRESSION but then the title describes the fix? > Tools/ChangeLog:10 > + To get the pixels as an array of colors, draw the image into a memory > + context. The backing memory buffer can then be accessed to get the image > + pixels' colors. What was wrong with the previous version? > Tools/TestWebKitAPI/Tests/WebKitCocoa/WKRequestActivatedElementInfo.mm:126 > + CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB(); RetainPtr<> > Tools/TestWebKitAPI/Tests/WebKitCocoa/WKRequestActivatedElementInfo.mm:127 > + CGContextRef context = CGBitmapContextCreate(pixels.data(), width, height, bitsPerComponent, bytesPerRow, colorSpace, kCGImageAlphaPremultipliedFirst | kCGImageByteOrder32Little); RetainPtr<> 1561340 4 376315 sabouhallawa 2019-08-14 14:43:43 -0700 Created attachment 376315 Patch 1561353 5 376285 sabouhallawa 2019-08-14 15:13:42 -0700 Comment on attachment 376285 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=376285&action=review >> Tools/ChangeLog:3 >> + [iOS](REGRESSION: r200487): Get the CGImage pixels by drawing it into a memory context > > This title is confusing. It says REGRESSION but then the title describes the fix? The tile was change to say what the bug is. >> Tools/ChangeLog:10 >> + pixels' colors. > > What was wrong with the previous version? Nothing was wrong with the previous version. I had the wrong assumption about the image data provider. I was assuming it has to point to the first pixel color. This assumption was true on iOS 12 but it is not true anymore on iOS 13. >> Tools/TestWebKitAPI/Tests/WebKitCocoa/WKRequestActivatedElementInfo.mm:126 >> + CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB(); > > RetainPtr<> Done. >> Tools/TestWebKitAPI/Tests/WebKitCocoa/WKRequestActivatedElementInfo.mm:127 >> + CGContextRef context = CGBitmapContextCreate(pixels.data(), width, height, bitsPerComponent, bytesPerRow, colorSpace, kCGImageAlphaPremultipliedFirst | kCGImageByteOrder32Little); > > RetainPtr<> Done. 1561408 6 376315 commit-queue 2019-08-14 18:17:37 -0700 Comment on attachment 376315 Patch Clearing flags on attachment: 376315 Committed r248701: <https://trac.webkit.org/changeset/248701> 1561409 7 commit-queue 2019-08-14 18:17:38 -0700 All reviewed patches have been landed. Closing bug. 376285 2019-08-14 11:48:08 -0700 2019-08-14 14:43:42 -0700 Patch bug-200726-20190814114808.patch text/plain 4577 sabouhallawa U3VidmVyc2lvbiBSZXZpc2lvbjogMjQ4Njc3CmRpZmYgLS1naXQgYS9Ub29scy9DaGFuZ2VMb2cg Yi9Ub29scy9DaGFuZ2VMb2cKaW5kZXggN2NmNzU1ODk5MGI1NTgzODAwNTM3N2E1YWZhY2QxNjU1 YmUxYmJmMS4uMWU1NTAwMmI3YzA3M2U3NTMzZTI2MzUxYWMzNTRhZWNlZGUwN2MyMCAxMDA2NDQK LS0tIGEvVG9vbHMvQ2hhbmdlTG9nCisrKyBiL1Rvb2xzL0NoYW5nZUxvZwpAQCAtMSwzICsxLDE3 IEBACisyMDE5LTA4LTE0ICBTYWlkIEFib3UtSGFsbGF3YSAgPHNhYm91aGFsbGF3YUBhcHBsZS5j b20+CisKKyAgICAgICAgW2lPU10oUkVHUkVTU0lPTjogcjIwMDQ4Nyk6IEdldCB0aGUgQ0dJbWFn ZSBwaXhlbHMgYnkgZHJhd2luZyBpdCBpbnRvIGEgbWVtb3J5IGNvbnRleHQKKyAgICAgICAgaHR0 cHM6Ly9idWdzLndlYmtpdC5vcmcvc2hvd19idWcuY2dpP2lkPTIwMDcyNgorCisgICAgICAgIFJl dmlld2VkIGJ5IE5PQk9EWSAoT09QUyEpLgorCisgICAgICAgIFRvIGdldCB0aGUgcGl4ZWxzIGFz IGFuIGFycmF5IG9mIGNvbG9ycywgZHJhdyB0aGUgaW1hZ2UgaW50byBhIG1lbW9yeQorICAgICAg ICBjb250ZXh0LiBUaGUgYmFja2luZyBtZW1vcnkgYnVmZmVyIGNhbiB0aGVuIGJlIGFjY2Vzc2Vk 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