[Bug 21655] MacOS: broken mixing in dsound8 tests + assertion failure

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=21655

--- Comment #7 from Raymond <superquad.vortex2 at gmail.com> 2011-11-23 18:37:14 CST ---
it is also broken in winealsa too

440Hz tone when using primary buffer of 24bit become noise


dsound8.c:651: Test failed: Primary and secondary buffers have different vtbls.
ds3d8.c:337:     Playing 1 second 440Hz tone at 11025x16x2
ds3d8.c:522: Test failed: The sound played for 861 ms instead of 1000 ms
dsound8.c:640:   Testing a primary buffer at 96000x32x2 (fmt=1) with a
secondary buffer at 11025x16x2
dsound8.c:651: Test failed: Primary and secondary buffers have different vtbls.
ds3d8.c:337:     Playing 1 second 440Hz tone at 11025x16x2
est.exe.so: mixer.c:330: DSOUND_BufPtrDiff: Assertion `ptr1 < buflen' failed.
dsound8: unhandled exception 80000101 at 0x68000832


AudioClient_GetMixFormat() prefer FLOAT_LE for those "plughw" device and limit
the rate to 48000Hz but user is allowed to change dsound's default sample rate
in registry to 96000Hz

    fmt->Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
    if(snd_pcm_format_mask_test(formats, SND_PCM_FORMAT_FLOAT_LE)){
        fmt->Format.wBitsPerSample = 32;
        fmt->SubFormat = KSDATAFORMAT_SUBTYPE_IEEE_FLOAT;
    }else if(snd_pcm_format_mask_test(formats, SND_PCM_FORMAT_S16_LE)){
        fmt->Format.wBitsPerSample = 16;
        fmt->SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
    }else if(snd_pcm_format_mask_test(formats, SND_PCM_FORMAT_U8)){
        fmt->Format.wBitsPerSample = 8;
        fmt->SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
    }else if(snd_pcm_format_mask_test(formats, SND_PCM_FORMAT_S32_LE)){
        fmt->Format.wBitsPerSample = 32;
        fmt->SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
    }else if(snd_pcm_format_mask_test(formats, SND_PCM_FORMAT_S24_3LE)){
        fmt->Format.wBitsPerSample = 24;
        fmt->SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
    }else{
        ERR("Didn't recognize any available ALSA formats\n");
        hr = E_FAIL;
        goto exit;
    }




    if(max_rate >= 48000)
        fmt->Format.nSamplesPerSec = 48000;
    else if(max_rate >= 44100)
        fmt->Format.nSamplesPerSec = 44100;
    else if(max_rate >= 22050)
        fmt->Format.nSamplesPerSec = 22050;
    else if(max_rate >= 11025)
        fmt->Format.nSamplesPerSec = 11025;
    else if(max_rate >= 8000)
        fmt->Format.nSamplesPerSec = 8000;
    else{
        ERR("Unknown max rate: %u\n", max_rate);
        hr = E_FAIL;
        goto exit;
    }

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