[Bug 20799] Multiple games using OpenAL freezes/crashes during the startup

http://bugs.winehq.org/show_bug.cgi?id=20799

--- Comment #75 from Raymond   2010-05-11 02:42:25 ---
(In reply to comment #74)
> (In reply to comment #72)
> > But wine seem did not return error when the application specify
> > DSBCAPS_LOCHARDWARE if wine did not support any kind of hardware acceleration
>
> What function should return the error and what is the value of the error? I
> could try to change the code, to confirm your theory.
>
> (As i have nearly any programming knowledge, better variant is, that you attach
> a patch here directly, to avoid my programming mistakes)

DSBCAPS_LOCHARDWARE

Forces the buffer to use hardware mixing, even if DSBCAPS_STATIC is not
specified. If the device does not support hardware mixing or if the required
hardware memory is not available, the call to the
IDirectSound::CreateSoundBuffer method will fail. The application must ensure
that a mixing channel will be available for this buffer; this condition is not
guaranteed

I am not sure which variable should be use

DWORD    dwFreeHwMixingAllBuffers;
    DWORD    dwFreeHwMixingStaticBuffers;
    DWORD    dwFreeHwMixingStreamingBuffers;

i.e. if (( dwFreeHwMixing???Buffers < 1 ) && ( request is DSBCAPS_LOCHARDWARE )
        return error in    IDirectSound::CreateSoundBuffer