The clipping code uses gfxContext::GetClipExtents which calls gfxContext::GetDeviceOffset
and DrawTarget::GetSize. The former was previously not being intialized, while the latter
was explicitly unimplemented. This patch fixes both of those facts.
Otherwise, enabling this functionality has been made trivial by several upstream patches
in webrender (the most recent being glenn's work on unifying shadows which eliminated
the buggy text-shadow shader code that was blocking this).
MozReview-Commit-ID: B1AlG3o4XQS
--HG--
extra : rebase_source : 2043c9c781f507c5d02041420145b1a5c59c0bb2
And remove unreachable code after MOZ_CRASH_UNSAFE_OOL().
MOZ_CRASH_UNSAFE_OOL causes data collection because crash strings are annotated to crash-stats and are publicly visible. Firefox data stewards must do data review on usages of this macro. However, all the crash strings this patch collects with MOZ_CRASH_UNSAFE_OOL are already collected with NS_RUNTIMEABORT.
MozReview-Commit-ID: IHmJfuxXSqw
--HG--
extra : rebase_source : 031f30934b58a7b87f960e57179641d44aefe5c5
extra : source : fe9f638a56a53c8721eecc4273dcc074c988546e
This adds fallbacks for:
* synthetic bold
* synthetic italics
* text-writing-modes
This also removes an old hack to make synthetic italics less broken.
This also prevents special opacity handling for color fonts so that webrender
gets that information.
MozReview-Commit-ID: DKiTUBR6hzy
--HG--
extra : rebase_source : 22b445d40ee46bb09d4325828a8e959d3da7a9c7
Mostly just threading the TextDrawTarget deeper into the code to use a boolean.
A lot of places are trying to optimize away invisible text!
MozReview-Commit-ID: 89sDAwUv0HA
--HG--
extra : rebase_source : 8d800702232aec6626a33f2d6be893708d0bbfee
Add a boolean value in FindFamily() to check if gecko needs to defer the
InitOtherFamilyNames() task into idle queue.
Add a new telemetry data FONTLIST_INITOTHERFAMILYNAMES_NO_DEFERRING for the
execution time of InitOtherFamilyNames() running regularly at main thread
instead of in idle queue.
MozReview-Commit-ID: A3YPDcHtXrX
Add a boolean value in FindFamily() to check if gecko needs to defer the
InitOtherFamilyNames() task into idle queue.
Add a new telemetry data FONTLIST_INITOTHERFAMILYNAMES_NO_DEFERRING for the
execution time of InitOtherFamilyNames() running regularly at main thread
instead of in idle queue.
MozReview-Commit-ID: A3YPDcHtXrX
We have a minimum requirement of VS 2015 for Windows builds, which supports
the z length modifier for format specifiers. So we don't need SizePrintfMacros.h
any more, and can just use %zu and friends directly everywhere.
MozReview-Commit-ID: 6s78RvPFMzv
--HG--
extra : rebase_source : 009ea39eb4dac1c927aa03e4f97d8ab673de8a0e
Here we add a new UserFontLoadState value, STATUS_LOAD_PENDING, which
represents the state just after a gfxUserFontEntry's url()-valued source
would being loading, except that we can't start the load due to being
on a Servo style worker thread. In that case, we defer the work of
initiating the load until just after the Servo traversal is finished.
URLs that can normally be loaded synchronously, such as data: URLs
and script-implemented protocols marked as synchronous, must be
handled asynchronously when encountered during Servo traversal, since
various main-thread only work (in FontFaceSet::SyncLoadFontData) must
happen. This is a user visible change from stock Gecko, but should
only happen when font metrics for a data: URL font are requested
due to ch/ex unit resolution when layout hasn't previously requested
the font load. Hopefully nobody relies on synchronous resolution of
ch/ex units with data: URLs.
We unfortunately also can't pick gfxUserFontEntry objects out of the
UserFontCache during Servo traversal, since validating the cache
entry involves doing content policy checking, which is not thread-safe
(due in part to taking strong references to nsIPrincipals).
Platform fonts and ArrayBuffer-backed DOM FontFace objects continue
to be handled synchronously.
The PostTraversalTask does not take a strong reference to the
gfxUserFontEntry object, since it is held on to by the DOM FontFace
object, which itself won't go away before the PostTraversalTask
is run.
MozReview-Commit-ID: J9ODLsusrNV
--HG--
extra : rebase_source : d3e3d1dc187cb252750b57bcecd0b1ed77a15a7c
Here we add a new UserFontLoadState value, STATUS_LOAD_PENDING, which
represents the state just after a gfxUserFontEntry's url()-valued source
would being loading, except that we can't start the load due to being
on a Servo style worker thread. In that case, we defer the work of
initiating the load until just after the Servo traversal is finished.
URLs that can normally be loaded synchronously, such as data: URLs
and script-implemented protocols marked as synchronous, must be
handled asynchronously when encountered during Servo traversal, since
various main-thread only work (in FontFaceSet::SyncLoadFontData) must
happen. This is a user visible change from stock Gecko, but should
only happen when font metrics for a data: URL font are requested
due to ch/ex unit resolution when layout hasn't previously requested
the font load. Hopefully nobody relies on synchronous resolution of
ch/ex units with data: URLs.
We unfortunately also can't pick gfxUserFontEntry objects out of the
UserFontCache during Servo traversal, since validating the cache
entry involves doing content policy checking, which is not thread-safe
(due in part to taking strong references to nsIPrincipals).
Platform fonts and ArrayBuffer-backed DOM FontFace objects continue
to be handled synchronously.
The PostTraversalTask does not take a strong reference to the
gfxUserFontEntry object, since it is held on to by the DOM FontFace
object, which itself won't go away before the PostTraversalTask
is run.
MozReview-Commit-ID: J9ODLsusrNV
--HG--
extra : rebase_source : 1651e2917bd31b87fc1c1be94b0eced1273df86a
