1152824 - Canvas compositing broken when using clipping area (FF 37 Windows)

Status: RESOLVED DUPLICATE of bug 1151821

(Core :: Graphics: Canvas2D, defect)

Description

[Gilles]

Attachment: Results of the fiddle with FF 37.0.1 on Windows 8.1

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.118 Safari/537.36

Steps to reproduce:

Open this fiddle with FireFox 37.0.1 on Windows 8.1 (all other platforms I could check did not show the problem):
https://jsfiddle.net/aahb1z7L/6/


Actual results:

compositing operations seem to be ignored or work only partially when a clipping area has been defined


Expected results:

compositing operations should work, within the clipping area, as with all other configurations tested.

Comment 1

[Alice0775 White]

[Tracking Requested - why for this release]: Regressed since Firefox37

Pushlog:
https://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=badfce143136&tochange=74852f33ad9c

Suspect: Bug 1082827

Set gfx.canvas.azure.backends = direct2d,skia,cairo in preferences helps

Comment 2

[Milan Sreckovic [:milan] (needinfo for best results)]

Could you attach about:support graphics section for the configuration that fails?

Comment 3

[Alice0775 White]

about:support graphics section that problem happens

Graphics
--------

Adapter Description: AMD Radeon HD 6450
Adapter Drivers: aticfx64 aticfx64 aticfx64 aticfx32 aticfx32 aticfx32 atiumd64 atidxx64 atidxx64 atiumdag atidxx32 atidxx32 atiumdva atiumd6a atitmm64
Adapter RAM: 1024
Asynchronous Pan/Zoom: none
ClearType Parameters: Gamma: 2200 Pixel Structure: R ClearType Level: 100 Enhanced Contrast: 200
Device ID: 0x6779
Direct2D Enabled: true
DirectWrite Enabled: true (6.2.9200.16571)
Driver Date: 11-20-2014
Driver Version: 14.501.1003.0
GPU #2 Active: false
GPU Accelerated Windows: 1/1 Direct3D 11 (OMTC)
Subsys ID: 23111787
Vendor ID: 0x1002
WebGL Renderer: Google Inc. -- ANGLE (AMD Radeon HD 6450 Direct3D11 vs_5_0 ps_5_0)
windowLayerManagerRemote: true
AzureCanvasBackend: direct2d 1.1
AzureContentBackend: direct2d 1.1
AzureFallbackCanvasBackend: cairo
AzureSkiaAccelerated: 0

Comment 4

[Alice0775 White]

Of course, I tested this with newly created profile.

https://hg.mozilla.org/mozilla-central/rev/2c9708e6b54d
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:40.0) Gecko/20100101 Firefox/40.0 ID:20150413030203

Comment 6

[Liz Henry (:lizzard) (relman/hg->git project)]

Untracking since bug 1151821 is already tracked.