[Bug 45724] New: Multiple EndScene calls result in multiple glFlush ( FF XIV)

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=45724

            Bug ID: 45724
           Summary: Multiple EndScene calls result in multiple glFlush (FF
                    XIV)
           Product: Wine
           Version: unspecified
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: P2
         Component: directx-d3d
          Assignee: wine-bugs at winehq.org
          Reporter: awesie at gmail.com
      Distribution: ---

While investigating the performance of FF XIV (DirectX 9), one major issue is
that it will call EndScene multiple times per frame. MSDN discourages this
behavior, and on Wine it introduces a significant performance penalty because a
flush is emitted for every call to wined3d_device_end_scene.

I removed the call to wined3d_cs_emit_flush in wined3d_device_end_scene which
significantly improved (~40%) the fps in my test area. Mileage may vary
depending on other patches.

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