285935 2025-01-14 13:29:05 -0800 REGRESSION(270688@main): Text is not displayed if it is formatted with OpenType-SVG color fonts 2025-01-15 17:48:45 -0800 1 1 1 Unclassified WebKit Layout and Rendering WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED https://bugs.webkit.org/show_bug.cgi?id=221744 https://bugs.webkit.org/show_bug.cgi?id=260181 InRadar P2 Normal --- 1 sabouhallawa webkit-unassigned bfulgham simon.fraser webkit-bug-importer zalan oldest_to_newest 2087189 0 sabouhallawa 2025-01-14 13:29:05 -0800 Open lennypickettmusic.com Result: The navigation bar with the text "LENNY PICKETT MUSIC" is not displayed. drawDisplayListItems() was added to GraphicsContext and its subclasses in 270688@main to transfer a DisplayList in one IPC to GPUProcess. It turned out this is problematic when RenderingResources are referenced from the items. We do not transfer local ImageBuffers to GPUProcess and DisplayList::Recorder should fail to record these items. It is supposed to fall back to GraphicsContext which transfers the local ImageBuffers to ShareableBitmaps before calling the corresponding NativeImage functions. The problem is this does not happen with individual items in DisplayList::Recorder::drawDisplayListItems(). We keep them referencing ImageBuffers although RemoteDisplayListRecorderProxy::recordResourceUse() fails to record the local ImageBuffers. The fix is to revert 270688@main. Reverting this change should not have an effect on MotionMark - Design sub-test. All the text runs in this sub-tests have only one DrawDecomposedGlyphs item which references a Font resource. So replaying back this item in WebProcess and sending it to GPUP individually should be the same as transferring the one-item list and replaying it back in GPUProcess. 2087193 1 sabouhallawa 2025-01-14 13:29:40 -0800 rdar://137496217 2087249 2 sabouhallawa 2025-01-14 15:17:19 -0800 https://github.com/WebKit/WebKit/pull/39016 2087641 3 sabouhallawa 2025-01-15 17:48:45 -0800 Committed 288980@main (37ebf36): https://commits.webkit.org/288980@main Reviewed commits have been landed. Closing PR #39016 and removing active labels.