[Bug 48046] Resident Evil 4 (Steam): Frame rate issues when clicking the left mouse button

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=48046

--- Comment #8 from Alistair Leslie-Hughes <leslie_alistair at hotmail.com> ---
(In reply to dereklesho52 from comment #7)
> As Matteo mentioned, the game repeatedly acquires and unacquires the mouse
> while MOUSE1 is held down.  When this happens wineserver usage goes up to
> 100% of a core, so I'd guess messages aren't being processed by the
> application.
> 
> I think a good next step would be to find out whether a wine bug is causing
> the game to exhibit this behavior, and then if not, whether Windows handles
> this without locking up the game.

It might be worth checking, if the Unacquire never sets This->acquired to
FALSE.

>From the log attached,

Here is the first Acquire,
00f8:trace:dinput:SysMouseWImpl_Acquire (this=0xcf994c0)
00f8:trace:dinput:IDirectInputDevice2WImpl_Acquire (0xcf994c0)
0133:trace:dinput:hook_thread_proc Processing hook change notification lp:0
00f8:trace:dinput:warp_check Warping mouse to 643 - 415
00f8:trace:dinput:warp_check Clipping mouse to (3,55)-(1283,775)

Next we have this. In theory the Acquire shouldn't be lost at this point and
will return S_FALSE. So, testing this scenario might help.
0112:trace:dinput:SysMouseWImpl_Acquire (this=0xcf994c0)
0112:trace:dinput:IDirectInputDevice2WImpl_Acquire (0xcf994c0)
0112:trace:dinput:SysMouseWImpl_Unacquire (this=0xcf994c0)

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