[Bug 41271] Fallout 4 - Audio issues (no sounds, hangs when playing intro video)

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=41271

charles.gorand.dev at gmail.com changed:

           What    |Removed                     |Added
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                 CC|                            |charles.gorand.dev at gmail.co
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--- Comment #15 from charles.gorand.dev at gmail.com ---
Wine 3.8 + dxvk + [bBackgroundMouse=1]:

Test 1 : normal use case

* Wine 3.8 with no changes.

=> Game stuck on intro : black screen.

Test 2 : prevent mixthread to lock anything and avoid any race condition in
wine.

* Commenting while loop in DSOUND_mixthread()

=> Game stuck on intro : black screen.

Test 3 : Working scenario

* Change the code as follow :

static HRESULT DirectSoundDevice_Initialize(DirectSoundDevice ** ppDevice,
LPCGUID lpcGUID)
{

[...]
 device->thread = CreateThread(0, 0, DSOUND_mixthread, device, 0, 0);
    usleep(100000);

=> Game is working perfectly.

Test 4 : Working scenario and prevent mix thread to do anything.

* Code changes of Test 2 and 3

=> Game is working perfectly. (No sound on intro video)


My analysis (maybe I'm wrong) :

Test 1 and 2 show there is something wrong inside the game and not related to
wine. I think we will get the same result if "dsound" implementation is
completely stubs. (I can try it to confirm it).
Test 2 shows there is no (visible?) race condition within wine (dsound) that 
 cause the issue.

Test 3 and 4 confirm there is an issue in the game (sorry not easy to explain,
but it looks clear for me).

Adding a delay in Initialize() or Release() will avoid a race condition in the
game.

DirectSound is only used by intro player (bink player ?)

The game use XAudio and works perfectly once bink intro is skipped.

I tried also to change intro video permission to prevent game from playing it.
The game is stuck with black screen.

If there is a way to disable bink player, I think it's the only way to play the
game without hacking wine.

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