[Bug 38800] glXSwapBuffersMscOML is slow on AMD Fusion but not on Intel 945 w/Atom

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=38800

--- Comment #4 from Simon Farnsworth <simon.farnsworth at onelan.co.uk> 2011-06-30 08:09:03 PDT ---
Added more logging - I'm clearly wrong, because I see that I enter the
following codepath around line 1100 of radeon_dri2.c in
radeon_dri2_schedule_swap, which converts DRI2_SWAPs to DRI2_FLIPs.

    /* Flips need to be submitted one frame before */
    if (info->allowPageFlip &&
    DRI2CanFlip(draw) &&
    can_exchange(scrn, front, back)) {
    swap_type = DRI2_FLIP;
    flip = 1;
    }

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