This ensures we don't scale the underlying size of the layer beyond what
is close to the current display size. When box shadows get much larger
than this, they start taking so much time to render that successive
frames grow in scale too fast for any inter-frame reuse to be possible.
With this, we avoid that and no longer get crushed by re-rendering
gigantic box shadows every single frame.
See BZ 1383825
A second template parameter 'F' was previously added to SizeTyped, but
was not correspondingly added to the argument passed for the 'Sub'
parameter of BaseSize.
There's considerable cost associated with creating HWA draw targets
which would negate and regress the performance won by it if used for
too small targets (like small spans of text).
This only uses HWA if >= 8K SurfaceAllocationSize to balance HWA draw
target cost with box blur cost.
Only blur one quadrant of a box-shadow and mirror it to the other quadrants.
This applies only if the corners are symmetrical (square corners or equal
corner radii) otherwise we'll fall back to the old method.
Mozilla found a bug in their initial implementation, causing paused WebM videos with alpha to become totally transparent if hardware acceleration is disabled. Straight port of the Firefox 54 fix.
Ref: BZ 1332952
Another requirement to have transparency in videos. Straight port of Firefox 53 implementation, save for some oddities relating to needing to put uint8_t instead of uint8 in yuv_convert to get this to compile.
Ref: BZ 1321076, 1329104
Sets the pref default to true and also add conneg entry for images
if jxl support is built.
Additionally, ifdefs the GfxPref to only observe when jxl is built.
Vim control lines were re-introduced or not entirely cleaned up.
This nukes them again.
Removing from embedding, extensions, gfx, hal, ipc, layout, mailnews,
media and memory. More to come.
Based on Mozilla bugs 1119128, 1285533, and 1421964.
gfx.font_rendering.fontconfig.fontlist.enabled is no longer available.
gfxFontconfigUtils.h still exists, and will be removed in another commit. Just
need more research on bug 1385029.
Tag #1862
Skia does some nasty things that break with DLL calls like having virtual dtors
without a body definition (and it's honestly surprising that it even builds to
begin with the way it's done, but apparently they use some linking symbol voodoo
to work around that in dependent classes).
Not wanting to have to pull Google code apart to try and fix that for something
we're only using for canvas anyway, it's better to just let Skia reside in
libxul instead.
