[Webkit-unassigned] [Bug 229182] compressedTexSubImage2D does return error when COMPRESSED_RGB_ETC1_WEBGL is used

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=229182

--- Comment #1 from Kimmo Kinnunen <kkinnunen at apple.com> ---

WebGLRenderingContextBase::validateCompressedTexDimensions

  ...

    case ExtensionsGL::ETC1_RGB8_OES:
        // Not supported for ETC1_RGB8_OES textures.
        return false;

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