Граф коммитов

7 Коммитов

Автор SHA1 Сообщение Дата
Sylvestre Ledru 265e672179 Bug 1511181 - Reformat everything to the Google coding style r=ehsan a=clang-format
# ignore-this-changeset

--HG--
extra : amend_source : 4d301d3b0b8711c4692392aa76088ba7fd7d1022
2018-11-30 11:46:48 +01:00
Andrew Osmond 6c32a5f985 Bug 1462355 - Part 1b. Update Decoder and SurfacePipe plumbing to use updated imgFrame methods. r=tnikkel 2018-05-29 08:36:12 -04:00
Milan Sreckovic 5c01b5706c Bug 1387514: Upgrade BaseRect (derived classes) width and height direct member variable use to instead use Width()/SetWidth() and Height()/SetHeight() in image/*. r=aosmond
MozReview-Commit-ID: 8gyxxLziVe7

--HG--
extra : rebase_source : c79e81e10c54106645539c590bf81a03a300a909
2017-08-14 08:29:56 -04:00
Andrew Osmond 42e6712830 Bug 1388332 - Fix a shutdown crash when destroying image decoders before initializing its SurfacePipe. r=tnikkel
A default constructed SurfacePipe contains a NullSurfaceSink as its
filter in mHead. This filter does nothing and is merely a placeholder.
Since most SurfacePipe objects are constructed with the default
constructor, and NullSurfaceSink has no (modified) state, we use a
singleton to represent it. Normally the SurfacePipe owns its filter, so
it needs to do a special check for NullSurfaceSink to ensure it doesn't
free it explicitly.

A Decoder object contains a default constructed SurfacePipe until it
needs to create the first frame from an image. This is a very brief
window because it does not take very long or much data to get to this
stage of decoding.

The NullSurfaceSink singleton is freed upon shutdown, however some
ISurfaceProvider objects may be lingering after this. If their Decoder
has yet to create the first frame, that means the SurfacePipe actually
contains a dangling pointer to the already freed singleton. To make
things worse, it actually tried to free the filter because it didn't
match the singleton (it got freed!).

As such, this change removes NullSurfaceSink entirely. We never use the
SurfacePipe before initializing it with a proper filter, and it would be
considered a programming error to do so. Instead let SurfacePipe::mHead
be null, and assert that it is not null when any operations are
performed on the SurfacePipe.
2017-08-09 06:54:55 -04:00
Andrew Osmond e7ce25346c Bug 1290293 - Part 2c. Make nsGIFDecoder2 use B8G8R8X8 only for unpaletted frames. r=tnikkel 2016-11-03 10:32:21 -04:00
Seth Fowler 9e70cde635 Bug 1262338 (Part 1) - Ensure that SurfaceFilter always knows when AdvanceRow() is called. r=njn 2016-05-25 22:48:29 -07:00
Seth Fowler b1ec50b23f Bug 1246851 (Part 1) - Add a new SurfacePipe API for writing to image surfaces in a safe and composable manner. r=njn 2016-02-25 16:21:29 -08:00