Bug 224062 - [GTK] 3 new failures on layout tests webgl/1.0.3/conformance/glsl/misc/ after r271524
Summary: [GTK] 3 new failures on layout tests webgl/1.0.3/conformance/glsl/misc/ after...
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: WebKitGTK (show other bugs)
Version: WebKit Nightly Build
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Nobody
URL:
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Depends on:
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Reported: 2021-04-01 11:56 PDT by Carlos Alberto Lopez Perez
Modified: 2022-09-29 12:46 PDT (History)
3 users (show)

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Description Carlos Alberto Lopez Perez 2021-04-01 11:56:21 PDT 
This 3 layout tests started failing on GTK after r271524

Regressions: Unexpected text-only failures (7)
  webgl/1.0.3/conformance/glsl/misc/shaders-with-missing-varyings.html [ Failure ]
  webgl/1.0.3/conformance/glsl/misc/shaders-with-varyings.html [ Failure ]
  webgl/1.0.3/conformance/rendering/gl-scissor-test.html [ Failure ]


Diffs: http://sprunge.us/iVaXk7


On the WPE port this failures don't happen.
And I'm unable to reproduce the failures on GTK when I build GTK against my Debian10 system libraries (instead of flatpak).
So perhaps this is related to the Mesa version

On the GTK Wayland bot the test webgl/1.0.3/conformance/rendering/gl-scissor-test.html passes, the other 2 fail as well.
Comment 1 Carlos Alberto Lopez Perez 2021-04-01 13:46:11 PDT 
Tests marked as failing in r275376
Comment 2 Alejandro G. Castro 2022-09-29 12:46:03 PDT 
After replacing the WebGL backend with ANGLE 2 of these tests are fixed:

webgl/1.0.3/conformance/glsl/misc/shaders-with-missing-varyings.html
webgl/1.0.3/conformance/glsl/misc/shaders-with-varyings.html

Now just gl-scissor-test.html fails. The gardening commit is:

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