[Webkit-unassigned] [Bug 215804] New: Robust initialisation of RGB textures with glTexImage2D(.., nullptr) fails on Mac Intel

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=215804

            Bug ID: 215804
           Summary: Robust initialisation of RGB textures with
                    glTexImage2D(.., nullptr) fails on Mac Intel
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: ANGLE
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: kkinnunen at apple.com
                CC: dino at apple.com

What steps will reproduce the problem?
1. glTexImage2D(..,GL_RGB, .., GL_RGB, nullptr)
2. draw with the texture
3. observe transparent black instead of expected solid black 

What is the expected output? What do you see instead?

observe transparent black instead of expected solid black 


What version of the product are you using? On what operating system?

Mac Catalina
Intel Iris

Please provide any additional information below.

https://bugs.chromium.org/p/angleproject/issues/detail?id=4986

Fails https://www.khronos.org/registry/webgl/sdk/tests/conformance/textures/misc/gl-teximage.html?webglVersion=2&quiet=0&quick=1

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