Bug 243487 – [GTK] webgl/1.0.x/conformance/extensions/webgl-multi-draw.html fails after 2022-08-02 WebGL conformance test update

• Status: RESOLVED
• Resolution: FIXED
• Component: WebGL

[Kimmo Kinnunen]

[GTK] webgl/1.0.x/conformance/extensions/webgl-multi-draw.html fails after 2022-08-02 WebGL conformance test update

Updated in bug 243448


Likely not multi draw related, rather compositing / swap issue revealed by the additional tests added in the new version of the test.

[Kenneth Russell]

There were two recent changes to this test:

1) https://github.com/KhronosGroup/WebGL/pull/3443

The associated bug fixes to this test were:

Implicit extension enabling should use WebGL frontend
https://bugs.webkit.org/show_bug.cgi?id=241918

Chromium-side bug was:
WebGL extensions must enable dependent ones
https://crbug.com/1343108

2) https://github.com/KhronosGroup/WebGL/pull/3437

The associated bug fix was:

Align WebGL draw call functions 
https://bugs.webkit.org/show_bug.cgi?id=241347

If the GTK port's using ANGLE as its WebGL implementation then these should have been picked up automatically.

[Alejandro G. Castro]

After replacing the WebGL backend with ANGLE this test is fixed. The gardening commit is:

https://commits.webkit.org/255008@main

[Radar WebKit Bug Importer]

<rdar://problem/100578180>