833749 - WebGL Conformance canvas/buffer-offscreen-test.html behaves differently in iframes on OSX and Linux

Status: RESOLVED FIXED

(Core :: Graphics: CanvasWebGL, defect)

Description

[Florian Bösch]

User Agent: Mozilla/5.0 (X11; Linux i686) AppleWebKit/537.17 (KHTML, like Gecko) Chrome/24.0.1312.52 Safari/537.17

Steps to reproduce:

Run the test canvas/buffer-offscreen-test.html from:
- https://www.khronos.org/registry/webgl/sdk/tests/webgl-conformance-tests.html?version=1.0.1
- And https://www.khronos.org/registry/webgl/sdk/tests/conformance/canvas/buffer-offscreen-test.html


Actual results:

When run from the test suite harness at https://www.khronos.org/registry/webgl/sdk/tests/webgl-conformance-tests.html?version=1.0.1 one of 9 tests fails on Firefox on OSX and Linux.

When run directly from the test suite at https://www.khronos.org/registry/webgl/sdk/tests/conformance/canvas/buffer-offscreen-test.html it succeeds on all 9 tests.

The test harness puts the test suite into an iframe. The failure is not related to the harness code. A plain iframe in an otherwise empty page shows the same problem.


Expected results:

Both tests should behave the same regardless of the containment in an iframe or not.

Comment 1

[Florian Bösch]

Test performed on all platforms with the same browsers (Chrome: 24.0.1312.52, Firefox: 18.0)

Ubuntu 12.10, Driver Nvidia 304.64, GPU GTX-460):
 - FF: in harness: fails, in suite: passes
 - Chrome: passes both

OSX 10.7.4, Driver ATI 7.18.18, GPU ATI Radeon HD 6750M
- FF: in harness: fails, in suite: passes
- Chrome: passes both

Windows 7, Driver AMD 9.2.0.0, GPU AMD Radeon HD 6900
- FF: passes both
- Chrome: passes both

Comment 2

[Florian Bösch]

Previous discussion on the bug for the conformance tests: https://github.com/KhronosGroup/WebGL/issues/145

Comment 3

[Luke]

In Ubuntu 14.04, AMD Mesa Drivers
 - FF: in harness: PASS, in suite: PASS

has it been fixed in OS X yet?

Comment 4

[Florian Bösch]

(In reply to Luke from comment #3)
> In Ubuntu 14.04, AMD Mesa Drivers
>  - FF: in harness: PASS, in suite: PASS
Confirmed fix.

> has it been fixed in OS X yet?

In OSX 10.9.5, GPU ATI Radeon HD 6750M
- FF: in harness: pass, in suite: pass

Comment 5

[Luke]

let's close this bug then