예제 #1
0
ALsoundfont *ALsoundfont_getDefSoundfont(ALCcontext *context)
{
    ALCdevice *device = context->Device;
    al_string fname = AL_STRING_INIT_STATIC();
    const char *namelist;

    if(device->DefaultSfont)
        return device->DefaultSfont;

    device->DefaultSfont = calloc(1, sizeof(device->DefaultSfont[0]));
    ALsoundfont_Construct(device->DefaultSfont);

    namelist = getenv("ALSOFT_SOUNDFONT");
    if(!namelist || !namelist[0])
        ConfigValueStr("midi", "soundfont", &namelist);
    while(namelist && namelist[0])
    {
        const char *next, *end;
        FILE *f;

        while(*namelist && (isspace(*namelist) || *namelist == ','))
            namelist++;
        if(!*namelist)
            break;
        next = strchr(namelist, ',');
        end = next ? next++ : (namelist+strlen(namelist));
        while(--end != namelist && isspace(*end)) {
        }
        if(end == namelist)
            continue;
        al_string_append_range(&fname, namelist, end+1);
        namelist = next;

        f = OpenDataFile(al_string_get_cstr(fname), "openal/soundfonts");
        if(f == NULL)
            ERR("Failed to open %s\n", al_string_get_cstr(fname));
        else
        {
            Reader reader;
            reader.cb = ALsoundfont_read;
            reader.ptr = f;
            reader.error = 0;
            TRACE("Loading %s\n", al_string_get_cstr(fname));
            loadSf2(&reader, device->DefaultSfont, context);
            fclose(f);
        }

        al_string_clear(&fname);
    }
    AL_STRING_DEINIT(fname);

    return device->DefaultSfont;
}
예제 #2
0
static void InitHQPanning(ALCdevice *device, const AmbDecConf *conf, const ALuint speakermap[MAX_OUTPUT_CHANNELS])
{
    const char *devname;
    int decflags = 0;
    size_t count;
    ALuint i;

    devname = al_string_get_cstr(device->DeviceName);
    if(GetConfigValueBool(devname, "decoder", "distance-comp", 1))
        decflags |= BFDF_DistanceComp;

    if((conf->ChanMask&AMBI_PERIPHONIC_MASK))
    {
        count = (conf->ChanMask > 0x1ff) ? 16 :
                (conf->ChanMask > 0xf) ? 9 : 4;
        for(i = 0;i < count;i++)
        {
            device->Dry.Ambi.Map[i].Scale = 1.0f;
            device->Dry.Ambi.Map[i].Index = i;
        }
    }
    else
    {
        static int map[MAX_AMBI_COEFFS] = { 0, 1, 3, 4, 8, 9, 15 };

        count = (conf->ChanMask > 0x1ff) ? 7 :
                (conf->ChanMask > 0xf) ? 5 : 3;
        for(i = 0;i < count;i++)
        {
            device->Dry.Ambi.Map[i].Scale = 1.0f;
            device->Dry.Ambi.Map[i].Index = map[i];
        }
    }
    device->Dry.CoeffCount = 0;
    device->Dry.NumChannels = count;

    TRACE("Enabling %s-band %s-order%s ambisonic decoder\n",
        (conf->FreqBands == 1) ? "single" : "dual",
        (conf->ChanMask > 0xf) ? (conf->ChanMask > 0x1ff) ? "third" : "second" : "first",
        (conf->ChanMask&AMBI_PERIPHONIC_MASK) ? " periphonic" : ""
    );
    bformatdec_reset(device->AmbiDecoder, conf, count, device->Frequency,
                     speakermap, decflags);

    if(bformatdec_getOrder(device->AmbiDecoder) < 2)
    {
        memcpy(&device->FOAOut.Ambi, &device->Dry.Ambi, sizeof(device->FOAOut.Ambi));
        device->FOAOut.CoeffCount = device->Dry.CoeffCount;
    }
    else
    {
        memset(&device->FOAOut.Ambi, 0, sizeof(device->FOAOut.Ambi));
        for(i = 0;i < 4;i++)
        {
            device->FOAOut.Ambi.Map[i].Scale = 1.0f;
            device->FOAOut.Ambi.Map[i].Index = i;
        }
        device->FOAOut.CoeffCount = 0;
    }
}
예제 #3
0
파일: mmdevapi.c 프로젝트: Sponk/NeoEditor
static void add_device(IMMDevice *device, LPCWSTR devid, vector_DevMap *list)
{
    DevMap entry;

    AL_STRING_INIT(entry.name);
    entry.devid = strdupW(devid);
    get_device_name(device, &entry.name);

    TRACE("Got device \"%s\", \"%ls\"\n", al_string_get_cstr(entry.name), entry.devid);
    VECTOR_PUSH_BACK(*list, entry);
}
예제 #4
0
static BOOL CALLBACK DSoundEnumDevices(GUID *guid, const WCHAR *desc, const WCHAR* UNUSED(drvname), void *data)
{
    vector_DevMap *devices = data;
    OLECHAR *guidstr = NULL;
    DevMap *iter, *end;
    DevMap entry;
    HRESULT hr;
    int count;

    if(!guid)
        return TRUE;

    AL_STRING_INIT(entry.name);

    count = 0;
    do {
        al_string_copy_wcstr(&entry.name, desc);
        if(count != 0)
        {
            char str[64];
            snprintf(str, sizeof(str), " #%d", count+1);
            al_string_append_cstr(&entry.name, str);
        }
        count++;

        iter = VECTOR_ITER_BEGIN(*devices);
        end = VECTOR_ITER_END(*devices);
        for(;iter != end;++iter)
        {
            if(al_string_cmp(entry.name, iter->name) == 0)
                break;
        }
    } while(iter != end);
    entry.guid = *guid;

    hr = StringFromCLSID(guid, &guidstr);
    if(SUCCEEDED(hr))
    {
        TRACE("Got device \"%s\", GUID \"%ls\"\n", al_string_get_cstr(entry.name), guidstr);
        CoTaskMemFree(guidstr);
    }

    VECTOR_PUSH_BACK(*devices, entry);

    return TRUE;
}
예제 #5
0
파일: dsound.c 프로젝트: Azaezel/Torque3D
static BOOL CALLBACK DSoundEnumDevices(GUID *guid, const WCHAR *desc, const WCHAR* UNUSED(drvname), void *data)
{
    vector_DevMap *devices = data;
    OLECHAR *guidstr = NULL;
    DevMap entry;
    HRESULT hr;
    int count;

    if(!guid)
        return TRUE;

    AL_STRING_INIT(entry.name);

    count = 0;
    while(1)
    {
        const DevMap *iter;

        al_string_copy_cstr(&entry.name, DEVNAME_HEAD);
        al_string_append_wcstr(&entry.name, desc);
        if(count != 0)
        {
            char str[64];
            snprintf(str, sizeof(str), " #%d", count+1);
            al_string_append_cstr(&entry.name, str);
        }

#define MATCH_ENTRY(i) (al_string_cmp(entry.name, (i)->name) == 0)
        VECTOR_FIND_IF(iter, const DevMap, *devices, MATCH_ENTRY);
        if(iter == VECTOR_END(*devices)) break;
#undef MATCH_ENTRY
        count++;
    }
    entry.guid = *guid;

    hr = StringFromCLSID(guid, &guidstr);
    if(SUCCEEDED(hr))
    {
        TRACE("Got device \"%s\", GUID \"%ls\"\n", al_string_get_cstr(entry.name), guidstr);
        CoTaskMemFree(guidstr);
    }

    VECTOR_PUSH_BACK(*devices, entry);

    return TRUE;
}
예제 #6
0
static void ProbePlaybackDevices(void)
{
    al_string *iter, *end;
    ALuint numdevs;
    ALuint i;

    clear_devlist(&PlaybackDevices);

    numdevs = waveOutGetNumDevs();
    VECTOR_RESERVE(PlaybackDevices, numdevs);
    for(i = 0; i < numdevs; i++)
    {
        WAVEOUTCAPSW WaveCaps;
        al_string dname;

        AL_STRING_INIT(dname);
        if(waveOutGetDevCapsW(i, &WaveCaps, sizeof(WaveCaps)) == MMSYSERR_NOERROR)
        {
            ALuint count = 0;
            do {
                al_string_copy_wcstr(&dname, WaveCaps.szPname);
                if(count != 0)
                {
                    char str[64];
                    snprintf(str, sizeof(str), " #%d", count+1);
                    al_string_append_cstr(&dname, str);
                }
                count++;

                iter = VECTOR_ITER_BEGIN(PlaybackDevices);
                end = VECTOR_ITER_END(PlaybackDevices);
                for(; iter != end; iter++)
                {
                    if(al_string_cmp(*iter, dname) == 0)
                        break;
                }
            } while(iter != end);

            TRACE("Got device \"%s\", ID %u\n", al_string_get_cstr(dname), i);
        }
        VECTOR_PUSH_BACK(PlaybackDevices, dname);
    }
}
예제 #7
0
static void ProbeCaptureDevices(void)
{
    ALuint numdevs;
    ALuint i;

    clear_devlist(&CaptureDevices);

    numdevs = waveInGetNumDevs();
    VECTOR_RESERVE(CaptureDevices, numdevs);
    for(i = 0;i < numdevs;i++)
    {
        WAVEINCAPSW WaveCaps;
        const al_string *iter;
        al_string dname;

        AL_STRING_INIT(dname);
        if(waveInGetDevCapsW(i, &WaveCaps, sizeof(WaveCaps)) == MMSYSERR_NOERROR)
        {
            ALuint count = 0;
            while(1)
            {
                al_string_copy_cstr(&dname, DEVNAME_HEAD);
                al_string_append_wcstr(&dname, WaveCaps.szPname);
                if(count != 0)
                {
                    char str[64];
                    snprintf(str, sizeof(str), " #%d", count+1);
                    al_string_append_cstr(&dname, str);
                }
                count++;

#define MATCH_ENTRY(i) (al_string_cmp(dname, *(i)) == 0)
                VECTOR_FIND_IF(iter, const al_string, CaptureDevices, MATCH_ENTRY);
                if(iter == VECTOR_END(CaptureDevices)) break;
#undef MATCH_ENTRY
            }

            TRACE("Got device \"%s\", ID %u\n", al_string_get_cstr(dname), i);
        }
        VECTOR_PUSH_BACK(CaptureDevices, dname);
    }
}
예제 #8
0
static void add_device(IMMDevice *device, vector_DevMap *list)
{
    LPWSTR devid;
    HRESULT hr;

    hr = IMMDevice_GetId(device, &devid);
    if(SUCCEEDED(hr))
    {
        DevMap entry;
        AL_STRING_INIT(entry.name);

        entry.devid = strdupW(devid);
        get_device_name(device, &entry.name);

        CoTaskMemFree(devid);

        TRACE("Got device \"%s\", \"%ls\"\n", al_string_get_cstr(entry.name), entry.devid);
        VECTOR_PUSH_BACK(*list, entry);
    }
}
예제 #9
0
static inline void AppendCaptureDeviceList2(const al_string *name)
{
    if(!al_string_empty(*name))
        AppendCaptureDeviceList(al_string_get_cstr(*name));
}
예제 #10
0
void aluInitRenderer(ALCdevice *device, ALint hrtf_id, enum HrtfRequestMode hrtf_appreq, enum HrtfRequestMode hrtf_userreq)
{
    const char *mode;
    bool headphones;
    int bs2blevel;
    size_t i;

    device->Hrtf = NULL;
    al_string_clear(&device->Hrtf_Name);
    device->Render_Mode = NormalRender;

    memset(&device->Dry.Ambi, 0, sizeof(device->Dry.Ambi));
    device->Dry.CoeffCount = 0;
    device->Dry.NumChannels = 0;

    if(device->FmtChans != DevFmtStereo)
    {
        ALuint speakermap[MAX_OUTPUT_CHANNELS];
        const char *devname, *layout = NULL;
        AmbDecConf conf, *pconf = NULL;

        if(hrtf_appreq == Hrtf_Enable)
            device->Hrtf_Status = ALC_HRTF_UNSUPPORTED_FORMAT_SOFT;

        ambdec_init(&conf);

        devname = al_string_get_cstr(device->DeviceName);
        switch(device->FmtChans)
        {
            case DevFmtQuad: layout = "quad"; break;
            case DevFmtX51: layout = "surround51"; break;
            case DevFmtX51Rear: layout = "surround51rear"; break;
            case DevFmtX61: layout = "surround61"; break;
            case DevFmtX71: layout = "surround71"; break;
            /* Mono, Stereo, and B-Fornat output don't use custom decoders. */
            case DevFmtMono:
            case DevFmtStereo:
            case DevFmtBFormat3D:
                break;
        }
        if(layout)
        {
            const char *fname;
            if(ConfigValueStr(devname, "decoder", layout, &fname))
            {
                if(!ambdec_load(&conf, fname))
                    ERR("Failed to load layout file %s\n", fname);
                else
                {
                    if(conf.ChanMask > 0xffff)
                        ERR("Unsupported channel mask 0x%04x (max 0xffff)\n", conf.ChanMask);
                    else
                    {
                        if(MakeSpeakerMap(device, &conf, speakermap))
                            pconf = &conf;
                    }
                }
            }
        }

        if(pconf && GetConfigValueBool(devname, "decoder", "hq-mode", 0))
        {
            if(!device->AmbiDecoder)
                device->AmbiDecoder = bformatdec_alloc();
        }
        else
        {
            bformatdec_free(device->AmbiDecoder);
            device->AmbiDecoder = NULL;
        }

        if(!pconf)
            InitPanning(device);
        else if(device->AmbiDecoder)
            InitHQPanning(device, pconf, speakermap);
        else
            InitCustomPanning(device, pconf, speakermap);

        ambdec_deinit(&conf);
        return;
    }

    bformatdec_free(device->AmbiDecoder);
    device->AmbiDecoder = NULL;

    headphones = device->IsHeadphones;
    if(device->Type != Loopback)
    {
        const char *mode;
        if(ConfigValueStr(al_string_get_cstr(device->DeviceName), NULL, "stereo-mode", &mode))
        {
            if(strcasecmp(mode, "headphones") == 0)
                headphones = true;
            else if(strcasecmp(mode, "speakers") == 0)
                headphones = false;
            else if(strcasecmp(mode, "auto") != 0)
                ERR("Unexpected stereo-mode: %s\n", mode);
        }
    }

    if(hrtf_userreq == Hrtf_Default)
    {
        bool usehrtf = (headphones && hrtf_appreq != Hrtf_Disable) ||
                       (hrtf_appreq == Hrtf_Enable);
        if(!usehrtf) goto no_hrtf;

        device->Hrtf_Status = ALC_HRTF_ENABLED_SOFT;
        if(headphones && hrtf_appreq != Hrtf_Disable)
            device->Hrtf_Status = ALC_HRTF_HEADPHONES_DETECTED_SOFT;
    }
    else
    {
        if(hrtf_userreq != Hrtf_Enable)
        {
            if(hrtf_appreq == Hrtf_Enable)
                device->Hrtf_Status = ALC_HRTF_DENIED_SOFT;
            goto no_hrtf;
        }
        device->Hrtf_Status = ALC_HRTF_REQUIRED_SOFT;
    }

    if(VECTOR_SIZE(device->Hrtf_List) == 0)
    {
        VECTOR_DEINIT(device->Hrtf_List);
        device->Hrtf_List = EnumerateHrtf(device->DeviceName);
    }

    if(hrtf_id >= 0 && (size_t)hrtf_id < VECTOR_SIZE(device->Hrtf_List))
    {
        const HrtfEntry *entry = &VECTOR_ELEM(device->Hrtf_List, hrtf_id);
        if(GetHrtfSampleRate(entry->hrtf) == device->Frequency)
        {
            device->Hrtf = entry->hrtf;
            al_string_copy(&device->Hrtf_Name, entry->name);
        }
    }

    for(i = 0;!device->Hrtf && i < VECTOR_SIZE(device->Hrtf_List);i++)
    {
        const HrtfEntry *entry = &VECTOR_ELEM(device->Hrtf_List, i);
        if(GetHrtfSampleRate(entry->hrtf) == device->Frequency)
        {
            device->Hrtf = entry->hrtf;
            al_string_copy(&device->Hrtf_Name, entry->name);
        }
    }

    if(device->Hrtf)
    {
        device->Render_Mode = HrtfRender;
        if(ConfigValueStr(al_string_get_cstr(device->DeviceName), NULL, "hrtf-mode", &mode))
        {
            if(strcasecmp(mode, "full") == 0)
                device->Render_Mode = HrtfRender;
            else if(strcasecmp(mode, "basic") == 0)
                device->Render_Mode = NormalRender;
            else
                ERR("Unexpected hrtf-mode: %s\n", mode);
        }

        TRACE("HRTF enabled, \"%s\"\n", al_string_get_cstr(device->Hrtf_Name));
        InitHrtfPanning(device);
        return;
    }
    device->Hrtf_Status = ALC_HRTF_UNSUPPORTED_FORMAT_SOFT;

no_hrtf:
    TRACE("HRTF disabled\n");

    bs2blevel = ((headphones && hrtf_appreq != Hrtf_Disable) ||
                 (hrtf_appreq == Hrtf_Enable)) ? 5 : 0;
    if(device->Type != Loopback)
        ConfigValueInt(al_string_get_cstr(device->DeviceName), NULL, "cf_level", &bs2blevel);
    if(bs2blevel > 0 && bs2blevel <= 6)
    {
        device->Bs2b = al_calloc(16, sizeof(*device->Bs2b));
        bs2b_set_params(device->Bs2b, bs2blevel, device->Frequency);
        device->Render_Mode = StereoPair;
        TRACE("BS2B enabled\n");
        InitPanning(device);
        return;
    }

    TRACE("BS2B disabled\n");

    device->Render_Mode = NormalRender;
    if(ConfigValueStr(al_string_get_cstr(device->DeviceName), NULL, "stereo-panning", &mode))
    {
        if(strcasecmp(mode, "paired") == 0)
            device->Render_Mode = StereoPair;
        else if(strcasecmp(mode, "uhj") != 0)
            ERR("Unexpected stereo-panning: %s\n", mode);
    }
    if(device->Render_Mode == NormalRender)
    {
        device->Uhj_Encoder = al_calloc(16, sizeof(Uhj2Encoder));
        TRACE("UHJ enabled\n");
        InitUhjPanning(device);
        return;
    }

    TRACE("UHJ disabled\n");
    InitPanning(device);
}
예제 #11
0
static bool MakeSpeakerMap(ALCdevice *device, const AmbDecConf *conf, ALuint speakermap[MAX_OUTPUT_CHANNELS])
{
    ALuint i;

    for(i = 0;i < conf->NumSpeakers;i++)
    {
        int c = -1;

        /* NOTE: AmbDec does not define any standard speaker names, however
         * for this to work we have to by able to find the output channel
         * the speaker definition corresponds to. Therefore, OpenAL Soft
         * requires these channel labels to be recognized:
         *
         * LF = Front left
         * RF = Front right
         * LS = Side left
         * RS = Side right
         * LB = Back left
         * RB = Back right
         * CE = Front center
         * CB = Back center
         *
         * Additionally, surround51 will acknowledge back speakers for side
         * channels, and surround51rear will acknowledge side speakers for
         * back channels, to avoid issues with an ambdec expecting 5.1 to
         * use the side channels when the device is configured for back,
         * and vice-versa.
         */
        if(al_string_cmp_cstr(conf->Speakers[i].Name, "LF") == 0)
            c = GetChannelIdxByName(device->RealOut, FrontLeft);
        else if(al_string_cmp_cstr(conf->Speakers[i].Name, "RF") == 0)
            c = GetChannelIdxByName(device->RealOut, FrontRight);
        else if(al_string_cmp_cstr(conf->Speakers[i].Name, "CE") == 0)
            c = GetChannelIdxByName(device->RealOut, FrontCenter);
        else if(al_string_cmp_cstr(conf->Speakers[i].Name, "LS") == 0)
        {
            if(device->FmtChans == DevFmtX51Rear)
                c = GetChannelIdxByName(device->RealOut, BackLeft);
            else
                c = GetChannelIdxByName(device->RealOut, SideLeft);
        }
        else if(al_string_cmp_cstr(conf->Speakers[i].Name, "RS") == 0)
        {
            if(device->FmtChans == DevFmtX51Rear)
                c = GetChannelIdxByName(device->RealOut, BackRight);
            else
                c = GetChannelIdxByName(device->RealOut, SideRight);
        }
        else if(al_string_cmp_cstr(conf->Speakers[i].Name, "LB") == 0)
        {
            if(device->FmtChans == DevFmtX51)
                c = GetChannelIdxByName(device->RealOut, SideLeft);
            else
                c = GetChannelIdxByName(device->RealOut, BackLeft);
        }
        else if(al_string_cmp_cstr(conf->Speakers[i].Name, "RB") == 0)
        {
            if(device->FmtChans == DevFmtX51)
                c = GetChannelIdxByName(device->RealOut, SideRight);
            else
                c = GetChannelIdxByName(device->RealOut, BackRight);
        }
        else if(al_string_cmp_cstr(conf->Speakers[i].Name, "CB") == 0)
            c = GetChannelIdxByName(device->RealOut, BackCenter);
        else
        {
            const char *name = al_string_get_cstr(conf->Speakers[i].Name);
            unsigned int n;
            char ch;

            if(sscanf(name, "AUX%u%c", &n, &ch) == 1 && n < 16)
                c = GetChannelIdxByName(device->RealOut, Aux0+n);
            else
            {
                ERR("AmbDec speaker label \"%s\" not recognized\n", name);
                return false;
            }
        }
        if(c == -1)
        {
            ERR("Failed to lookup AmbDec speaker label %s\n",
                al_string_get_cstr(conf->Speakers[i].Name));
            return false;
        }
        speakermap[i] = c;
    }

    return true;
}
예제 #12
0
static bool LoadChannelSetup(ALCdevice *device)
{
    static const enum Channel mono_chans[1] = {
        FrontCenter
    }, stereo_chans[2] = {
        FrontLeft, FrontRight
    }, quad_chans[4] = {
        FrontLeft, FrontRight,
        BackLeft, BackRight
    }, surround51_chans[5] = {
        FrontLeft, FrontRight, FrontCenter,
        SideLeft, SideRight
    }, surround51rear_chans[5] = {
        FrontLeft, FrontRight, FrontCenter,
        BackLeft, BackRight
    }, surround61_chans[6] = {
        FrontLeft, FrontRight,
        FrontCenter, BackCenter,
        SideLeft, SideRight
    }, surround71_chans[7] = {
        FrontLeft, FrontRight, FrontCenter,
        BackLeft, BackRight,
        SideLeft, SideRight
    };
    ChannelMap chanmap[MAX_OUTPUT_CHANNELS];
    const enum Channel *channels = NULL;
    const char *layout = NULL;
    ALfloat ambiscale = 1.0f;
    size_t count = 0;
    int isfuma;
    int order;
    size_t i;

    switch(device->FmtChans)
    {
        case DevFmtMono:
            layout = "mono";
            channels = mono_chans;
            count = COUNTOF(mono_chans);
            break;
        case DevFmtStereo:
            layout = "stereo";
            channels = stereo_chans;
            count = COUNTOF(stereo_chans);
            break;
        case DevFmtQuad:
            layout = "quad";
            channels = quad_chans;
            count = COUNTOF(quad_chans);
            break;
        case DevFmtX51:
            layout = "surround51";
            channels = surround51_chans;
            count = COUNTOF(surround51_chans);
            break;
        case DevFmtX51Rear:
            layout = "surround51rear";
            channels = surround51rear_chans;
            count = COUNTOF(surround51rear_chans);
            break;
        case DevFmtX61:
            layout = "surround61";
            channels = surround61_chans;
            count = COUNTOF(surround61_chans);
            break;
        case DevFmtX71:
            layout = "surround71";
            channels = surround71_chans;
            count = COUNTOF(surround71_chans);
            break;
        case DevFmtBFormat3D:
            break;
    }

    if(!layout)
        return false;
    else
    {
        char name[32] = {0};
        const char *type;
        char eol;

        snprintf(name, sizeof(name), "%s/type", layout);
        if(!ConfigValueStr(al_string_get_cstr(device->DeviceName), "layouts", name, &type))
            return false;

        if(sscanf(type, " %31[^: ] : %d%c", name, &order, &eol) != 2)
        {
            ERR("Invalid type value '%s' (expected name:order) for layout %s\n", type, layout);
            return false;
        }

        if(strcasecmp(name, "fuma") == 0)
            isfuma = 1;
        else if(strcasecmp(name, "n3d") == 0)
            isfuma = 0;
        else
        {
            ERR("Unhandled type name '%s' (expected FuMa or N3D) for layout %s\n", name, layout);
            return false;
        }

        if(order == 3)
            ambiscale = THIRD_ORDER_SCALE;
        else if(order == 2)
            ambiscale = SECOND_ORDER_SCALE;
        else if(order == 1)
            ambiscale = FIRST_ORDER_SCALE;
        else if(order == 0)
            ambiscale = ZERO_ORDER_SCALE;
        else
        {
            ERR("Unhandled type order %d (expected 0, 1, 2, or 3) for layout %s\n", order, layout);
            return false;
        }
    }

    for(i = 0;i < count;i++)
    {
        float coeffs[MAX_AMBI_COEFFS] = {0.0f};
        const char *channame;
        char chanlayout[32];
        const char *value;
        int props = 0;
        char eol = 0;
        int j;

        chanmap[i].ChanName = channels[i];
        channame = GetLabelFromChannel(channels[i]);

        snprintf(chanlayout, sizeof(chanlayout), "%s/%s", layout, channame);
        if(!ConfigValueStr(al_string_get_cstr(device->DeviceName), "layouts", chanlayout, &value))
        {
            ERR("Missing channel %s\n", channame);
            return false;
        }
        if(order == 3)
            props = sscanf(value, " %f %f %f %f %f %f %f %f %f %f %f %f %f %f %f %f %c",
                &coeffs[0],  &coeffs[1],  &coeffs[2],  &coeffs[3],
                &coeffs[4],  &coeffs[5],  &coeffs[6],  &coeffs[7],
                &coeffs[8],  &coeffs[9],  &coeffs[10], &coeffs[11],
                &coeffs[12], &coeffs[13], &coeffs[14], &coeffs[15],
                &eol
            );
        else if(order == 2)
            props = sscanf(value, " %f %f %f %f %f %f %f %f %f %c",
                &coeffs[0], &coeffs[1], &coeffs[2],
                &coeffs[3], &coeffs[4], &coeffs[5],
                &coeffs[6], &coeffs[7], &coeffs[8],
                &eol
            );
        else if(order == 1)
            props = sscanf(value, " %f %f %f %f %c",
                &coeffs[0], &coeffs[1],
                &coeffs[2], &coeffs[3],
                &eol
            );
        else if(order == 0)
            props = sscanf(value, " %f %c", &coeffs[0], &eol);
        if(props == 0)
        {
            ERR("Failed to parse option %s properties\n", chanlayout);
            return false;
        }

        if(props > (order+1)*(order+1))
        {
            ERR("Excess elements in option %s (expected %d)\n", chanlayout, (order+1)*(order+1));
            return false;
        }

        if(isfuma)
        {
            /* Reorder FuMa -> ACN */
            for(j = 0;j < MAX_AMBI_COEFFS;++j)
                chanmap[i].Config[FuMa2ACN[j]] = coeffs[j];
        }
        else
        {
            /* Rescale N3D -> FuMa */
            for(j = 0;j < MAX_AMBI_COEFFS;++j)
                chanmap[i].Config[j] = coeffs[j] * N3D2FuMaScale[j];
        }
    }
    SetChannelMap(device, chanmap, count, ambiscale);
    return true;
}