[Webkit-unassigned] [Bug 60617] New: [Qt] WebGL implementation is in compatible with ES 2.0 shaders on Desktop OpenGL

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=60617

           Summary: [Qt] WebGL implementation is in compatible with ES 2.0
                    shaders on Desktop OpenGL
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: WebGL
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: jarkko.j.sakkinen at gmail.com
                CC: benjamin at webkit.org


WebGL implementation is incompatible with ES 2.0 shaders on Desktop OpenGL. This causes multiple layout tests under fast/canvas/webgl to fail.

GraphicsContext3DQt should proxy shader source through ANGLE library. Necessary changes are already part of bug 57261 that is a migration task for GraphicsContext3DOpenGL.

I think this change should be done before migration as it is quite self contained and can be considered as a bug not a feature (proper WebGL implementation should accept shaders that in strict ES 2.0 form). This will also ease the migration.

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