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Created by John Zupin@johnz-lunarg

i965: Rendering problems replaying a trace of "Refunct" after mesa-20.1.0-rc1 release [bisected]

System information

  • OS: Ubuntu 16.04
  • GPU: Intel Broadwell, Intel Skylake, Intel Kabylake
  • Kernel version: 4.10.0
  • Mesa version: mesa-20.1.0-rc1 and mesa-20.1.0-rc2

Describe the issue

A trace of the game "Refunct" no longer replays correctly after mesa-20.1.0-rc1 release.

Regression

This used to work for mesa-20.0.6

It has been bisected to this commit:

b684030c3a656ffdbc93581856034e0982db46fd is the first bad commit
commit b684030c3a656ffdbc93581856034e0982db46fd
Author: Mathias Fröhlich <mathias.froehlich@web.de>
Date:   Sat Apr 20 07:57:15 2019 +0200

    i965: Use the VAOs binding information in array setup.
    
    The change basically reimplements array setup by walking
    the gl_contex::Array._DrawVAO on a per binding sequence.
    In this way we can make direct use of the application
    provided minimum set of buffer objects and emit fewer relocs.
    
    v2: Rebase onto:
        compiler: Move double_inputs to gl_program::DualSlotInputs
    v3: Rebase onto introduction of gl_vertex_format
    v4: Reorder and extend patch series.
    v5: Split out two hunks into seperate patches.
    v6: Avoid using GL* types.
    
    Reviewed-by: Matt Turner <mattst88@gmail.com>
    Signed-off-by: Mathias Fröhlich <Mathias.Froehlich@web.de>
    Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/308>

:040000 040000 ce354c383971b679527c71ac96e51f26d3bb44be c962591d53019bb6941de6f9f589413948e945ad M	src

Screenshots/video files

Here are some screenshots of frames before and after:

Any extra information would be greatly appreciated

  • Trace can be provided upon request
Edited by John Zupin
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