1225381 - Canvas mozCurrentTransformInverse & fillText: SkFixed.h:46: failed assertion "n64 == n32"

Status: RESOLVED FIXED

(Core :: Graphics: Canvas2D, defect)

Description

[Jesse Ruderman]

Attachment: testcase

gfx/skia/skia/include/core/SkFixed.h:46: failed assertion "n64 == n32"

Thanks to Lee Salzman for fixing the previous instance in bug 1190705 ;)

Comment 1

[Jesse Ruderman]

Attachment: stack

I see "SkScalerContext_Mac" on the stack, so this might be Mac-specific (in addition to Skia-specific).

Comment 2

[Lee Salzman [:lsalzman]]

Attachment: ensure mozCurrentTransform is finite

This is just basically a new case of bug 1190705. We need to ensure the supplied matrix is finite, otherwise stuff blows up downwind.

The patch adds some new checks as well as adds the testcase as a crashtest.

Comment 3

[Lee Salzman [:lsalzman]]

Try results: https://treeherder.mozilla.org/#/jobs?repo=try&revision=efa79265ac43

Comment 4

[Pulsebot]

https://hg.mozilla.org/integration/mozilla-inbound/rev/697b98680150

Comment 5

[Wes Kocher (:KWierso) (Not reading bugmail; email directly if needed)]

https://hg.mozilla.org/mozilla-central/rev/697b98680150