[PATCH v2 0/2] MR6873: dsound: Fix SetNotificationPositions at end of nonlooping buffer

[Alfred Agrell (＠Alcaro)]

https://store.steampowered.com/app/345610/The_Fruit_of_Grisaia/ likes to call IDirectSoundNotify::SetNotificationPositions with position two bytes before the end of the buffer, then play it nonlooping.

If Wine doesn't feel like delivering these notifications, the Quit Game button on the title screen screws up.

The game also likes to lock up during scene transitions in Wine/Proton, which I strongly suspect (but haven't confirmed) has the same root cause. (I haven't found a reliable repro for the lockups.)

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  v2: dsound: Fix SetNotificationPositions at end of nonlooping buffer.
      dsound/tests: Add nonlooping SetNotificationPositions test.

https://gitlab.winehq.org/wine/wine/-/merge_requests/6873