213265 2020-06-16 15:35:15 -0700 [WebGL] Lose the context if IOSurface allocation fails 2020-06-16 17:58:05 -0700 1 1 1 Unclassified WebKit WebGL WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 1 dino dino dino ews-watchlist graouts kondapallykalyan noam simon.fraser webkit-bug-importer oldest_to_newest 1663274 0 dino 2020-06-16 15:35:15 -0700 If we can't create the backing store for WebGL, we should immediately lose the context. 1663275 1 webkit-bug-importer 2020-06-16 15:35:27 -0700 <rdar://problem/64424742> 1663279 2 402050 dino 2020-06-16 15:38:13 -0700 Created attachment 402050 Patch 1663282 3 402050 simon.fraser 2020-06-16 15:41:32 -0700 Comment on attachment 402050 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=402050&action=review > Source/WebCore/platform/graphics/angle/GraphicsContextGLANGLE.cpp:221 > + if (!allocateIOSurfaceBackingStore(IntSize(width, height))) { Weird that we have size above then break it out into width/height then put it back to size here. > Source/WebCore/platform/graphics/angle/GraphicsContextGLANGLE.cpp:224 > + return true; What does the true mean? Shouldn't this be false? Or should it be an enum? > Source/WebCore/platform/graphics/opengl/GraphicsContextGLOpenGLBase.cpp:195 > + if (!allocateIOSurfaceBackingStore(IntSize(width, height))) { > + RELEASE_LOG(WebGL, "Fatal: Unable to allocate backing store of size %d x %d", width, height); > + forceContextLost(); > + return true; Ditto. 1663300 4 402050 dino 2020-06-16 16:28:56 -0700 Comment on attachment 402050 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=402050&action=review >> Source/WebCore/platform/graphics/angle/GraphicsContextGLANGLE.cpp:221 >> + if (!allocateIOSurfaceBackingStore(IntSize(width, height))) { > > Weird that we have size above then break it out into width/height then put it back to size here. Yeah. >> Source/WebCore/platform/graphics/angle/GraphicsContextGLANGLE.cpp:224 >> + return true; > > What does the true mean? Shouldn't this be false? Or should it be an enum? This should be in a separate cleanup. It indicates whether or not to restore the FBO bindings, so unrelated to allocation. Given that we're losing the context here, it doesn't matter what we return. 1663332 5 dino 2020-06-16 17:58:05 -0700 Committed r263127: <https://trac.webkit.org/changeset/263127> 402050 2020-06-16 15:38:13 -0700 2020-06-16 15:41:32 -0700 Patch bug-213265-20200617083811.patch text/plain 8873 dino U3VidmVyc2lvbiBSZXZpc2lvbjogMjYyOTMyCmRpZmYgLS1naXQgYS9Tb3VyY2UvV2ViQ29yZS9D aGFuZ2VMb2cgYi9Tb3VyY2UvV2ViQ29yZS9DaGFuZ2VMb2cKaW5kZXggMzNkNjQ2NTRkZWM1ZjA1 MWNkZDVlYjBhMzJlY2FhMGQyMDExNGMxMy4uNDU0NDA4NzVjNDE1ZWY2MDUwYjVkYjQ3ODc1Nzhm ODhjZWJhNzg4YiAxMDA2NDQKLS0tIGEvU291cmNlL1dlYkNvcmUvQ2hhbmdlTG9nCisrKyBiL1Nv dXJjZS9XZWJDb3JlL0NoYW5nZUxvZwpAQCAtMSwzICsxLDI3IEBACisyMDIwLTA2LTE2ICBEZWFu IEphY2tzb24gIDxkaW5vQGFwcGxlLmNvbT4KKworICAgICAgICBbV2ViR0xdIExvc2UgdGhlIGNv bnRleHQgaWYgSU9TdXJmYWNlIGFsbG9jYXRpb24gZmFpbHMKKyAgICAgICAgaHR0cHM6Ly9idWdz LndlYmtpdC5vcmcvc2hvd19idWcuY2dpP2lkPTIxMzI2NQorICAgICAgICA8cmRhcjovL3Byb2Js ZW0vNjQ0MjQ3NDI+CisKKyAgICAgICAgUmV2aWV3ZWQgYnkgTk9CT0RZIChPT1BTISkuCisKKyAg 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