123646 2013-11-01 16:03:56 -0700 Remote Layer Tree: Move RemoteLayerBackingStore to Shared/ 2013-11-04 11:08:06 -0800 1 1 1 Unclassified WebKit WebKit2 528+ (Nightly build) Unspecified Unspecified RESOLVED FIXED P2 Normal --- 1 thorton thorton andersca commit-queue darin simon.fraser oldest_to_newest 946078 0 thorton 2013-11-01 16:03:56 -0700 Move RemoteLayerBackingStore to Shared/, since it is used on both the UI and Web process side of things. 946079 1 215775 thorton 2013-11-01 16:04:54 -0700 Created attachment 215775 patch will move with svn mv 946085 2 215775 darin 2013-11-01 16:13:02 -0700 Comment on attachment 215775 patch View in context: https://bugs.webkit.org/attachment.cgi?id=215775&action=review > Source/WebKit2/Shared/mac/RemoteLayerBackingStore.mm:40 > +#ifdef __has_include > +#if __has_include(<ApplicationServices/ApplicationServicesPriv.h>) I think we could do this with a single if instead: #if defined __has_include && __has_include(<ApplicationServices/ApplicationServicesPriv.h>) I didn’t think of that earlier because I found the whole idiom so strange. > Source/WebKit2/Shared/mac/RemoteLayerBackingStore.mm:152 > + unsigned long bytesPerRow = IOSurfaceAlignProperty(kIOSurfaceBytesPerRow, width * bytesPerElement); This returns size_t, not unsigned long. > Source/WebKit2/Shared/mac/RemoteLayerBackingStore.mm:155 > + unsigned long allocSize = IOSurfaceAlignProperty(kIOSurfaceAllocSize, height * bytesPerRow); Ditto. > Source/WebKit2/Shared/mac/RemoteLayerBackingStore.mm:215 > + backSurface = createIOSurface(expandedScaledSize); Why not use m_frontSurface directly here and dump the backSurface local? > Source/WebKit2/Shared/mac/RemoteLayerBackingStore.mm:218 > + CGContextClearRect(cgContext.get(), CGRectMake(0, 0, expandedScaledSize.width(), expandedScaledSize.height())); Could we use CGRectInfinite instead? > Source/WebKit2/Shared/mac/RemoteLayerBackingStore.mm:222 > + backBuffer = ShareableBitmap::createShareable(expandedIntSize(scaledSize), ShareableBitmap::SupportsAlpha); Why not use m_frontBuffer directly here and dump the backBuffer local? > Source/WebKit2/Shared/mac/RemoteLayerBackingStore.mm:226 > + drawInContext(*context); It’s kind of funny that we allocate the context on the heap just so we can share this one line of code. 946089 3 thorton 2013-11-01 16:20:11 -0700 Heh, thanks, Darin! I'll make those changes in another patch since it doesn't seem like a good idea to do them in a file-move patch. 946090 4 thorton 2013-11-01 16:23:28 -0700 Did the move in http://trac.webkit.org/changeset/158463 946096 5 thorton 2013-11-01 16:33:52 -0700 (In reply to comment #2) > (From update of attachment 215775 [details]) > View in context: https://bugs.webkit.org/attachment.cgi?id=215775&action=review > > > Source/WebKit2/Shared/mac/RemoteLayerBackingStore.mm:40 > > +#ifdef __has_include > > +#if __has_include(<ApplicationServices/ApplicationServicesPriv.h>) > > I think we could do this with a single if instead: > > #if defined __has_include && __has_include(<ApplicationServices/ApplicationServicesPriv.h>) > > I didn’t think of that earlier because I found the whole idiom so strange. We could! That does look a lot nicer. None of the other instances of this idiom do, but I don't see why not. > > Source/WebKit2/Shared/mac/RemoteLayerBackingStore.mm:215 > > + backSurface = createIOSurface(expandedScaledSize); > > Why not use m_frontSurface directly here and dump the backSurface local? > > > Source/WebKit2/Shared/mac/RemoteLayerBackingStore.mm:222 > > + backBuffer = ShareableBitmap::createShareable(expandedIntSize(scaledSize), ShareableBitmap::SupportsAlpha); > > Why not use m_frontBuffer directly here and dump the backBuffer local? I'm a bit concerned about releasing the existing m_frontSurface while we have an image referencing it for the same reason I discovered I need to hold onto the context - I'm pretty sure we'll copy the image data off the GPU. But I haven't tested or looked at the source in this specific case. Doing that in the software case would be fine, because the CGImageRef will hold on to the ShareableBitmap while it's alive. 946125 6 215787 thorton 2013-11-01 17:49:07 -0700 Created attachment 215787 address review comments 946225 7 215787 commit-queue 2013-11-02 09:02:54 -0700 Comment on attachment 215787 address review comments Clearing flags on attachment: 215787 Committed r158488: <http://trac.webkit.org/changeset/158488> 215775 2013-11-01 16:04:54 -0700 2013-11-01 16:13:02 -0700 patch move.diff text/plain 32023 thorton ZGlmZiAtLWdpdCBhL1NvdXJjZS9XZWJLaXQyL0NoYW5nZUxvZyBiL1NvdXJjZS9XZWJLaXQyL0No YW5nZUxvZwppbmRleCA2MzI3OWFkLi45MzRmYjViIDEwMDY0NAotLS0gYS9Tb3VyY2UvV2ViS2l0 Mi9DaGFuZ2VMb2cKKysrIGIvU291cmNlL1dlYktpdDIvQ2hhbmdlTG9nCkBAIC0xLDUgKzEsMTkg QEAKIDIwMTMtMTEtMDEgIFRpbSBIb3J0b24gIDx0aW1vdGh5X2hvcnRvbkBhcHBsZS5jb20+CiAK KyAgICAgICAgUmVtb3RlIExheWVyIFRyZWU6IE1vdmUgUmVtb3RlTGF5ZXJCYWNraW5nU3RvcmUg dG8gU2hhcmVkLworICAgICAgICBodHRwczovL2J1Z3Mud2Via2l0Lm9yZy9zaG93X2J1Zy5jZ2k/ 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