[Bug 80247] New: Khronos conformance test ES3-CTS.gtf.GL3Tests.transform_feedback.transform_feedback_vertex_id fails

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=80247

          Priority: medium
            Bug ID: 80247
          Assignee: idr at freedesktop.org
           Summary: Khronos conformance test
                    ES3-CTS.gtf.GL3Tests.transform_feedback.transform_feed
                    back_vertex_id  fails
        QA Contact: intel-3d-bugs at lists.freedesktop.org
          Severity: major
    Classification: Unclassified
                OS: Linux (All)
          Reporter: anuj.phogat at gmail.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: git
         Component: Drivers/DRI/i965
           Product: Mesa

Test fails with following error:
ERROR:transform_feedback_vertex_id:compareArrays(GLint):index 0 value 4 != 0

Found on further investigation that intel hardware always sets the VertexID
starting from 0, irrespective of the first index specified in
glDrawArrays(mode, first, count). Seems like this issue is present on multiple
Intel platforms (gen6,7,8). We need a software workaround to provide vertex
shader with correct gl_VertexID values.

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/intel-3d-bugs/attachments/20140619/649e0a0b/attachment.html>