Mihai Moldovan 75971a4c80 When using XRENDER, create Xlib-based offscreen image surfaces. ... Mozilla tried to enable XRENDER support with backends other than Cairo in 286348:e13aaaaf1962 / https://hg.mozilla.org/mozilla-central/rev/e13aaaaf1962 - at least until they decided to completely remove XRENDER support. The change looked innocent enough, but actually turned out to do exactly the opposite: it forcefully enabled image offscreen surfaces with GTK2 when it was previously disabled (since gfxPrefs::UseImageOffscreenSurfaces() will always return true) and, by extension, disabled the XRENDER-based functionality by creating a non-Xlib surface. Interestingly, a previously enabled double buffering check was also disabled by this, but since the comment for this was diverging with the code, that behavior just sounds like yet another bug. Instead of disabling image offscreen surfaces (at least when using the GTK2 backend), let's force the creation of Xlib-based image surfaces when XRENDER support is enabled. This will let UXP use the more common/modern code paths, but also make scrolling much faster again. Too fast scrolling may induce tearing (if not smoothed), but on the other hand performs much better in remote computing contexts. As an added benefit, GTK3-based builds should roughly behave the same way. Further tests with the GTK3-backend enabled will be required in the future.		2019-05-17 22:16:26 +08:00
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2d	Bug 1360343 - ensure maskSurface is not null before dereference, since it can be null because of OOM or gfx device reset. r=dvander	2019-04-04 20:30:32 +08:00
angle	ANGLE: Initialize uniform blocks before detaching shaders	2019-02-16 00:09:43 +08:00
cairo	Remove AIX 1st party code OS checks, part 2	2019-04-04 20:26:46 +08:00
config	import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo	2018-01-19 03:59:58 +08:00
doc	import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo	2018-01-19 03:59:58 +08:00
docs	import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo	2018-01-19 03:59:58 +08:00
gl	Remove all C++ Telemetry Accumulation calls.	2019-02-16 00:12:32 +08:00
graphite2	Update graphite2 lib to 1.3.10	2019-02-15 23:28:46 +08:00
harfbuzz	import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo	2018-01-19 03:59:58 +08:00
ipc	Remove crashreporter toolkit files.	2019-04-04 20:29:55 +08:00
layers	Telemetry: Remove stubs and related code	2019-02-16 00:24:04 +08:00
ots	import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo	2018-01-19 03:59:58 +08:00
qcms	Remove AIX 1st party code OS checks, part 2	2019-04-04 20:26:46 +08:00
skia	Don't trust convexity when applying transforms.	2019-02-21 14:55:05 +08:00
src	Telemetry: Remove stubs and related code	2019-02-16 00:24:04 +08:00
tests	Remove other gonk widget conditionals and unused files.	2019-02-15 23:57:15 +08:00
thebes	When using XRENDER, create Xlib-based offscreen image surfaces.	2019-05-17 22:16:26 +08:00
ycbcr	import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo	2018-01-19 03:59:58 +08:00
moz.build	Remove VR hardware support.	2019-02-16 00:20:27 +08:00