This patch launches content processes with the `MOZ_HEADLESS` env var set
if they're using GTK with an X11 display (and there's no other reason
they'd need GTK).
The goal is to avoid exhausting Xorg's default limit of 256 clients if
there are many content processes due to Fission. If these conditions
are met, the content process doesn't need to eagerly connect to the X
server. This does not affect the sandbox policy, and content processes
can still use X if needed for, e.g., WebGL.
The boolean pref `dom.ipc.avoid-gtk`, set by default, controls this
feature. In the future it could also be extended to minimize GTK use
with Wayland displays.
Note that disabling `widget.non-native-theme.enabled`, which is also
enabled by default, will restore the use of X11 in all content processes
even if this pref is set; the alternative is that widgets wouldn't render
in that case.
This change will also save some memory for now-unnecessary instances of
GTK's global state, and improve content process startup time.
Remove also the temp pref dom.ipc.remote-mozIcon because it cannot work
anymore with the content process being headless.
Differential Revision: https://phabricator.services.mozilla.com/D112197
When we rasterized SVG images on the main thread of the content process,
we would call gfxUtils::DrawPixelSnapped with aUseOptimalFillOp set to
false. We should do the same when recording them.
Differential Revision: https://phabricator.services.mozilla.com/D116398
This patch allows animated SVG images to take advantage of blob
recordings like static SVG images. While before this patch, they would
use fallback blob recordings, this has the advantage of reusing the blob
key on an update. This helps avoid unnecessary scene rebuilds, as well
as reusing the same texture allocation for the rasterized blob.
Differential Revision: https://phabricator.services.mozilla.com/D111839
Bug 1712147 restricted JPEG-XL (controlled by preference image.jxl.enabled) to be only `true`
if MOZ_JXL is set and ifdef-ed the caller. This patch ifdef-s the function definition.
Differential Revision: https://phabricator.services.mozilla.com/D116100
This removes the check from static prefs, mainly since it's hard to check MOZ_JXL in JS side. It can be a bit confusing but generally shouldn't be harmful.
Differential Revision: https://phabricator.services.mozilla.com/D115704
An image container can keep a surface alive longer than it can remain in
the cache, if it is indeed kept in the cache. We should cross reference
our memory report generated from the SurfaceCache against any surfaces
stored in our ImageContainer objects to ensure they are all reported.
This is of particular importance for blob recordings which are not put
into SurfaceCache. While the recordings themselves have their own memory
reporting inside of WebRender, it would be good to know what recordings
we are keeping alive from the content side to help break it down.
Differential Revision: https://phabricator.services.mozilla.com/D115517
Fix for ConvertYCbCrToRGB32 to use full range convert functions for full range data.
Some changes of libyuv are backported from newer version, to get support of full range BT.709 and BT.2020 colorspace.
Differential Revision: https://phabricator.services.mozilla.com/D105937
This creates a new leaf nsDisplayWrapper item for consumers that just want an empty wrapper, with a Paint method that asserts. This lets us leaves Paint pure-virtual on nsDisplayWrapList, and lets the compiler force us to implement it for the other leaf types.
It also disables flattening of transform/opacity items. This is because they flatten the items even when used with FlattenedDisplayItemIterator, even though this doesn't add markers to replace them (only FLB does this). We could in theory fix this, but I don't think FLB performance matters much any more.
Differential Revision: https://phabricator.services.mozilla.com/D114676
This creates a new leaf nsDisplayWrapper item for consumers that just want an empty wrapper, with a Paint method that asserts. This lets us leaves Paint pure-virtual on nsDisplayWrapList, and lets the compiler force us to implement it for the other leaf types.
It also disables flattening of transform/opacity items. This is because they flatten the items even when used with FlattenedDisplayItemIterator, even though this doesn't add markers to replace them (only FLB does this). We could in theory fix this, but I don't think FLB performance matters much any more.
Differential Revision: https://phabricator.services.mozilla.com/D114676
We don't support storing blob recordings in the surface cache at this
time so we should never look at it. It is possible that one may request
a blob recording, and have a previous rasterization available in the
cache because it was used in canvas or as a repeating background image.
We want to explicitly avoid the cache in that case.
Differential Revision: https://phabricator.services.mozilla.com/D115136
We don't support storing blob recordings in the surface cache at this
time so we should never look at it. It is possible that one may request
a blob recording, and have a previous rasterization available in the
cache because it was used in canvas or as a repeating background image.
We want to explicitly avoid the cache in that case.
Differential Revision: https://phabricator.services.mozilla.com/D115136
We don't support storing blob recordings in the surface cache at this
time so we should never look at it. It is possible that one may request
a blob recording, and have a previous rasterization available in the
cache because it was used in canvas or as a repeating background image.
We want to explicitly avoid the cache in that case.
Differential Revision: https://phabricator.services.mozilla.com/D115136
This patch hooks up the ImageIntRegion to the blob recording and makes
any necessary adjusts to the display list creation to take advantage of
it.
Differential Revision: https://phabricator.services.mozilla.com/D114986
This patch has no functional change beyond changing prototypes and
adding storage for ImageIntRegion for each ImageContainer.
Differential Revision: https://phabricator.services.mozilla.com/D114984
We want to use ImageRegion as one of the selection criteria to find a
valid ImageContainer for VectorImage. To avoid slightly different
floating point values causing us to recreate the recording, let's just
store it as integers.
Differential Revision: https://phabricator.services.mozilla.com/D114983
Tom Ritter
Timothy Nikkel
Emilio Cobos Álvarez
Paul Zuehlcke
Jed Davis
Alexandre Lissy
Andrew Osmond
Jon Bauman
Matt Woodrow
Sebastian Hengst
Kris Wright
Kagami Sascha Rosylight
Yuan Tong
Csoregi Natalia
Butkovits Atila
Dorel Luca
Andi-Bogdan Postelnicu
Alexandru Michis
Sandor Molnar
Noemi Erli