[Mesa-dev] [Bug 107989] GLES 3.x context: GL_INVALID_OPERATION in glGenerateMipmap(invalid internal format GL_RED)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107989

            Bug ID: 107989
           Summary: GLES 3.x context: GL_INVALID_OPERATION in
                    glGenerateMipmap(invalid internal format GL_RED)
           Product: Mesa
           Version: 18.2
          Hardware: All
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Mesa core
          Assignee: mesa-dev at lists.freedesktop.org
          Reporter: 0x416b617269 at gmail.com
        QA Contact: mesa-dev at lists.freedesktop.org

Trying to call glGenerateMipmap on a texture with the internal format of GL_RED
in an OpenGL ES 3.x context produces a GL_INVALID_OPERATION error. Explicitly
sized formats such as GL_R8 work, and so do other formats with no size
specified, such as GL_RGBA. Core context is not affected. Tested with the
radeonsi and llvmpipe drivers.

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