[Piglit] [Bug 87611] New: Exercise gl_VertexID corner cases in i965 driver

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=87611

            Bug ID: 87611
           Summary: Exercise gl_VertexID corner cases in i965 driver
           Product: piglit
           Version: unspecified
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: tests
          Assignee: piglit at lists.freedesktop.org
          Reporter: idr at freedesktop.org
        QA Contact: piglit at lists.freedesktop.org
                CC: idr at freedesktop.org, kenneth at whitecape.org

We need a test case to exercise a corner case recently fixed in the i965 driver
by Ken.  To exercise the bug, the test needs to do 4 things:

1. Use user-allocated vertex arrays (NOT vertex buffer objects).

2. Use a glDrawArrays with a non-zero 'first'.

3. Use primitive restart to trigger multiple _mesa_prim without an intervening
state change.

4. Validate the value of gl_VertexID in the vertex shader.

Once the fix lands in Mesa master, we'll update the bug with commit ID.  That
way the test author will know when the bug is fixed.

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