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authorcku <cku@mozilla.com>2017-04-28 11:48:21 +0800
committeryami <34216515+kn-yami@users.noreply.github.com>2019-04-03 14:55:35 +0200
commit71c0318322ce998ea411f343607de524b2058799 (patch)
tree29cff490491c44f33ab40aaef4182514495048aa /gfx
parentff2f287f82630ab3887d7d5c1e64e5b888ea0beb (diff)
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Bug 1360343 - ensure maskSurface is not null before dereference, since it can be null because of OOM or gfx device reset. r=dvander
MozReview-Commit-ID: HX2qsWLZpMg --HG-- extra : rebase_source : 046befc11151461a682842c31e2ce39247a5e1d8
Diffstat (limited to 'gfx')
-rw-r--r--gfx/2d/2D.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/gfx/2d/2D.h b/gfx/2d/2D.h
index c1fba3463..e2020dc9e 100644
--- a/gfx/2d/2D.h
+++ b/gfx/2d/2D.h
@@ -488,6 +488,9 @@ public:
/**
* Returns a DataSourceSurface with the same data as this one, but
* guaranteed to have surface->GetType() == SurfaceType::DATA.
+ *
+ * The returning surface might be null, because of OOM or gfx device reset.
+ * The caller needs to do null-check before using it.
*/
virtual already_AddRefed<DataSourceSurface> GetDataSurface() override;