This makes it possible to implement nsDisplayBlend blob image invalidation.
It currently only includes an implementation for Skia and DrawTargetRecording.
All other backends will crash when used.
MozReview-Commit-ID: 2GhdDxi4jHG
Add a command CreateClippedDrawTarget to DrawTarget, which takes the
max required size and a transform between this draw target and the one
to be created. The created draw target may have its size clipped to
the size of this draw target, transformed to the new target's
space. This means that the new surface will be large enough so
that it is rendered to this draw target correctly, but not necessarily
any larger.
Usually this will just create a draw target of the requested size, for
simplicity. However, when replaying a recorded draw target we do clip
the size to the base draw target's size. This is done using a
DrawTargetTiled, so when applying the mask in PopLayer, we must take
the SourceSurface's offset in to account.
MozReview-Commit-ID: 89ONElphzLu
--HG--
extra : rebase_source : 7eebeb66a2686a7b6f4ade36f3004ebb06abc2fe
This patch was generated automatically by the "modeline.py" script, available
here: https://github.com/amccreight/moz-source-tools/blob/master/modeline.py
For every file that is modified in this patch, the changes are as follows:
(1) The patch changes the file to use the exact C++ mode lines from the
Mozilla coding style guide, available here:
https://developer.mozilla.org/en-US/docs/Mozilla/Developer_guide/Coding_Style#Mode_Line
(2) The patch deletes any blank lines between the mode line & the MPL
boilerplate comment.
(3) If the file previously had the mode lines and MPL boilerplate in a
single contiguous C++ comment, then the patch splits them into
separate C++ comments, to match the boilerplate in the coding style.
MozReview-Commit-ID: 77D61xpSmIl
--HG--
extra : rebase_source : c6162fa3cf539a07177a19838324bf368faa162b
This changes the serialization format a little bit.
We now have an index at the end of the blob. This
is currently used to store a list of the used font keys.
In the future we'll add rects and can use it for invalidation.
Add DoWithEvent which switches over an event type, reads the event into
a stack variable and calls a callable with that event as a parameter.
This avoids doing a heap allocation for every event that we play back.
This is much faster than using a stringstream for a couple of reasons:
1. ostream needs to do a virtual call on each write which means that
it can't be inlined.
2. stringstream needs to check for resize every write(). We combine
those checks into a single one.
Lee Salzman
Jeff Muizelaar
Jamie Nicol
Chris Peterson
Milan Sreckovic
David Anderson
Daniel Holbert
Alex Gaynor
Sebastian Hengst
Carsten "Tomcat" Book