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Update the default basic B-Format decoders

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This also converts them to ACN/N3D format.
This commit is contained in:
Chris Robinson
2017-01-21 11:05:05 -08:00
parent aa56af1ecb
commit 371fda1803
1 changed files with 36 additions and 47 deletions
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Alc/panning.c
+36 -47
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@@ -342,11 +342,8 @@ typedef struct ChannelMap {
} ChannelMap;
static void SetChannelMap(const enum Channel *devchans, ChannelConfig *ambicoeffs,
const ChannelMap *chanmap, size_t count, ALsizei *outcount,
ALboolean isfuma)
const ChannelMap *chanmap, size_t count, ALsizei *outcount)
{
const ALsizei *acnmap = isfuma ? FuMa2ACN : ACN2ACN;
const ALfloat *n3dscale = isfuma ? FuMa2N3DScale : UnitScale;
size_t j, k;
ALsizei i;
@@ -365,10 +362,7 @@ static void SetChannelMap(const enum Channel *devchans, ChannelConfig *ambicoeff
continue;
for(k = 0;k < MAX_AMBI_COEFFS;++k)
{
ALsizei acn = acnmap[k];
ambicoeffs[i][acn] = chanmap[j].Config[k] / n3dscale[acn];
}
ambicoeffs[i][k] = chanmap[j].Config[k];
break;
}
if(j == count)
@@ -468,47 +462,42 @@ static bool MakeSpeakerMap(ALCdevice *device, const AmbDecConf *conf, ALuint spe
}
/* NOTE: These decoder coefficients are using FuMa channel ordering and
* normalization, since that's what was produced by the Ambisonic Decoder
* Toolbox. SetChannelMap will convert them to N3D.
*/
static const ChannelMap MonoCfg[1] = {
{ FrontCenter, { 1.414213562f } },
{ FrontCenter, { 1.0f } },
}, StereoCfg[2] = {
{ FrontLeft, { 0.707106781f, 0.0f, 0.5f, 0.0f } },
{ FrontRight, { 0.707106781f, 0.0f, -0.5f, 0.0f } },
{ FrontLeft, { 5.00000000e-1f, 2.88675135e-1f, 0.0f, 0.0f } },
{ FrontRight, { 5.00000000e-1f, -2.88675135e-1f, 0.0f, 0.0f } },
}, QuadCfg[4] = {
{ FrontLeft, { 0.353553f, 0.306186f, 0.306186f, 0.0f, 0.0f, 0.0f, 0.0f, 0.000000f, 0.125000f } },
{ FrontRight, { 0.353553f, 0.306186f, -0.306186f, 0.0f, 0.0f, 0.0f, 0.0f, 0.000000f, -0.125000f } },
{ BackLeft, { 0.353553f, -0.306186f, 0.306186f, 0.0f, 0.0f, 0.0f, 0.0f, 0.000000f, -0.125000f } },
{ BackRight, { 0.353553f, -0.306186f, -0.306186f, 0.0f, 0.0f, 0.0f, 0.0f, 0.000000f, 0.125000f } },
{ BackLeft, { 3.53553391e-1f, 2.04124145e-1f, 0.0f, -2.04124145e-1f } },
{ FrontLeft, { 3.53553391e-1f, 2.04124145e-1f, 0.0f, 2.04124145e-1f } },
{ FrontRight, { 3.53553391e-1f, -2.04124145e-1f, 0.0f, 2.04124145e-1f } },
{ BackRight, { 3.53553391e-1f, -2.04124145e-1f, 0.0f, -2.04124145e-1f } },
}, X51SideCfg[5] = {
{ FrontLeft, { 0.208954f, 0.199518f, 0.223424f, 0.0f, 0.0f, 0.0f, 0.0f, -0.012543f, 0.144260f } },
{ FrontRight, { 0.208950f, 0.199514f, -0.223425f, 0.0f, 0.0f, 0.0f, 0.0f, -0.012544f, -0.144258f } },
{ FrontCenter, { 0.109403f, 0.168250f, -0.000002f, 0.0f, 0.0f, 0.0f, 0.0f, 0.100431f, -0.000001f } },
{ SideLeft, { 0.470934f, -0.346484f, 0.327504f, 0.0f, 0.0f, 0.0f, 0.0f, -0.022188f, -0.041113f } },
{ SideRight, { 0.470936f, -0.346480f, -0.327507f, 0.0f, 0.0f, 0.0f, 0.0f, -0.022186f, 0.041114f } },
{ SideLeft, { 3.33001372e-1f, 1.89085671e-1f, 0.0f, -2.00041334e-1f, -2.12309737e-2f, 0.0f, 0.0f, 0.0f, -1.14573483e-2f } },
{ FrontLeft, { 1.47751298e-1f, 1.28994110e-1f, 0.0f, 1.15190495e-1f, 7.44949143e-2f, 0.0f, 0.0f, 0.0f, -6.47739980e-3f } },
{ FrontCenter, { 7.73595729e-2f, 0.00000000e+0f, 0.0f, 9.71390298e-2f, 0.00000000e+0f, 0.0f, 0.0f, 0.0f, 5.18625335e-2f } },
{ FrontRight, { 1.47751298e-1f, -1.28994110e-1f, 0.0f, 1.15190495e-1f, -7.44949143e-2f, 0.0f, 0.0f, 0.0f, -6.47739980e-3f } },
{ SideRight, { 3.33001372e-1f, -1.89085671e-1f, 0.0f, -2.00041334e-1f, 2.12309737e-2f, 0.0f, 0.0f, 0.0f, -1.14573483e-2f } },
}, X51RearCfg[5] = {
{ FrontLeft, { 0.208954f, 0.199518f, 0.223424f, 0.0f, 0.0f, 0.0f, 0.0f, -0.012543f, 0.144260f } },
{ FrontRight, { 0.208950f, 0.199514f, -0.223425f, 0.0f, 0.0f, 0.0f, 0.0f, -0.012544f, -0.144258f } },
{ FrontCenter, { 0.109403f, 0.168250f, -0.000002f, 0.0f, 0.0f, 0.0f, 0.0f, 0.100431f, -0.000001f } },
{ BackLeft, { 0.470934f, -0.346484f, 0.327504f, 0.0f, 0.0f, 0.0f, 0.0f, -0.022188f, -0.041113f } },
{ BackRight, { 0.470936f, -0.346480f, -0.327507f, 0.0f, 0.0f, 0.0f, 0.0f, -0.022186f, 0.041114f } },
{ BackLeft, { 3.33001372e-1f, 1.89085671e-1f, 0.0f, -2.00041334e-1f, -2.12309737e-2f, 0.0f, 0.0f, 0.0f, -1.14573483e-2f } },
{ FrontLeft, { 1.47751298e-1f, 1.28994110e-1f, 0.0f, 1.15190495e-1f, 7.44949143e-2f, 0.0f, 0.0f, 0.0f, -6.47739980e-3f } },
{ FrontCenter, { 7.73595729e-2f, 0.00000000e+0f, 0.0f, 9.71390298e-2f, 0.00000000e+0f, 0.0f, 0.0f, 0.0f, 5.18625335e-2f } },
{ FrontRight, { 1.47751298e-1f, -1.28994110e-1f, 0.0f, 1.15190495e-1f, -7.44949143e-2f, 0.0f, 0.0f, 0.0f, -6.47739980e-3f } },
{ BackRight, { 3.33001372e-1f, -1.89085671e-1f, 0.0f, -2.00041334e-1f, 2.12309737e-2f, 0.0f, 0.0f, 0.0f, -1.14573483e-2f } },
}, X61Cfg[6] = {
{ FrontLeft, { 0.167065f, 0.200583f, 0.172695f, 0.0f, 0.0f, 0.0f, 0.0f, 0.029855f, 0.186407f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, -0.039241f, 0.068910f } },
{ FrontRight, { 0.167065f, 0.200583f, -0.172695f, 0.0f, 0.0f, 0.0f, 0.0f, 0.029855f, -0.186407f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, -0.039241f, -0.068910f } },
{ FrontCenter, { 0.109403f, 0.179490f, 0.000000f, 0.0f, 0.0f, 0.0f, 0.0f, 0.142031f, 0.000000f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.072024f, 0.000000f } },
{ BackCenter, { 0.353556f, -0.461940f, 0.000000f, 0.0f, 0.0f, 0.0f, 0.0f, 0.165723f, 0.000000f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.000000f, 0.000000f } },
{ SideLeft, { 0.289151f, -0.081301f, 0.401292f, 0.0f, 0.0f, 0.0f, 0.0f, -0.188208f, -0.071420f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.010099f, -0.032897f } },
{ SideRight, { 0.289151f, -0.081301f, -0.401292f, 0.0f, 0.0f, 0.0f, 0.0f, -0.188208f, 0.071420f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.010099f, 0.032897f } },
}, X71Cfg[7] = {
{ FrontLeft, { 0.167065f, 0.200583f, 0.172695f, 0.0f, 0.0f, 0.0f, 0.0f, 0.029855f, 0.186407f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, -0.039241f, 0.068910f } },
{ FrontRight, { 0.167065f, 0.200583f, -0.172695f, 0.0f, 0.0f, 0.0f, 0.0f, 0.029855f, -0.186407f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, -0.039241f, -0.068910f } },
{ FrontCenter, { 0.109403f, 0.179490f, 0.000000f, 0.0f, 0.0f, 0.0f, 0.0f, 0.142031f, 0.000000f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.072024f, 0.000000f } },
{ BackLeft, { 0.224752f, -0.295009f, 0.170325f, 0.0f, 0.0f, 0.0f, 0.0f, 0.105349f, -0.182473f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.000000f, 0.065799f } },
{ BackRight, { 0.224752f, -0.295009f, -0.170325f, 0.0f, 0.0f, 0.0f, 0.0f, 0.105349f, 0.182473f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.000000f, -0.065799f } },
{ SideLeft, { 0.224739f, 0.000000f, 0.340644f, 0.0f, 0.0f, 0.0f, 0.0f, -0.210697f, 0.000000f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.000000f, -0.065795f } },
{ SideRight, { 0.224739f, 0.000000f, -0.340644f, 0.0f, 0.0f, 0.0f, 0.0f, -0.210697f, 0.000000f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.000000f, 0.065795f } },
{ SideLeft, { 2.04462744e-1f, 2.17178497e-1f, 0.0f, -4.39990188e-2f, -2.60787329e-2f, 0.0f, 0.0f, 0.0f, -6.87238843e-2f } },
{ FrontLeft, { 1.18130342e-1f, 9.34633906e-2f, 0.0f, 1.08553749e-1f, 6.80658795e-2f, 0.0f, 0.0f, 0.0f, 1.08999485e-2f } },
{ FrontCenter, { 7.73595729e-2f, 0.00000000e+0f, 0.0f, 9.71390298e-2f, 0.00000000e+0f, 0.0f, 0.0f, 0.0f, 5.18625335e-2f } },
{ FrontRight, { 1.18130342e-1f, -9.34633906e-2f, 0.0f, 1.08553749e-1f, -6.80658795e-2f, 0.0f, 0.0f, 0.0f, 1.08999485e-2f } },
{ SideRight, { 2.04462744e-1f, -2.17178497e-1f, 0.0f, -4.39990188e-2f, 2.60787329e-2f, 0.0f, 0.0f, 0.0f, -6.87238843e-2f } },
{ BackCenter, { 2.50001688e-1f, 0.00000000e+0f, 0.0f, -2.50000094e-1f, 0.00000000e+0f, 0.0f, 0.0f, 0.0f, 6.05133395e-2f } },
}, X71Cfg[6] = {
{ BackLeft, { 2.04124145e-1f, 1.08880247e-1f, 0.0f, -1.88586120e-1f, -1.29099444e-1f, 0.0f, 0.0f, 0.0f, 7.45355993e-2f, 3.73460789e-2f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.00000000e+0f } },
{ SideLeft, { 2.04124145e-1f, 2.17760495e-1f, 0.0f, 0.00000000e+0f, 0.00000000e+0f, 0.0f, 0.0f, 0.0f, -1.49071198e-1f, -3.73460789e-2f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.00000000e+0f } },
{ FrontLeft, { 2.04124145e-1f, 1.08880247e-1f, 0.0f, 1.88586120e-1f, 1.29099444e-1f, 0.0f, 0.0f, 0.0f, 7.45355993e-2f, 3.73460789e-2f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.00000000e+0f } },
{ FrontRight, { 2.04124145e-1f, -1.08880247e-1f, 0.0f, 1.88586120e-1f, -1.29099444e-1f, 0.0f, 0.0f, 0.0f, 7.45355993e-2f, -3.73460789e-2f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.00000000e+0f } },
{ SideRight, { 2.04124145e-1f, -2.17760495e-1f, 0.0f, 0.00000000e+0f, 0.00000000e+0f, 0.0f, 0.0f, 0.0f, -1.49071198e-1f, 3.73460789e-2f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.00000000e+0f } },
{ BackRight, { 2.04124145e-1f, -1.08880247e-1f, 0.0f, -1.88586120e-1f, 1.29099444e-1f, 0.0f, 0.0f, 0.0f, 7.45355993e-2f, -3.73460789e-2f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.00000000e+0f } },
};
static void InitPanning(ALCdevice *device)
@@ -539,7 +528,7 @@ static void InitPanning(ALCdevice *device)
case DevFmtQuad:
count = COUNTOF(QuadCfg);
chanmap = QuadCfg;
ambiscale = SECOND_ORDER_SCALE;
ambiscale = FIRST_ORDER_SCALE;
coeffcount = 9;
break;
@@ -560,7 +549,7 @@ static void InitPanning(ALCdevice *device)
case DevFmtX61:
count = COUNTOF(X61Cfg);
chanmap = X61Cfg;
ambiscale = THIRD_ORDER_SCALE;
ambiscale = SECOND_ORDER_SCALE;
coeffcount = 16;
break;
@@ -620,7 +609,7 @@ static void InitPanning(ALCdevice *device)
else
{
SetChannelMap(device->RealOut.ChannelName, device->Dry.Ambi.Coeffs,
chanmap, count, &device->Dry.NumChannels, AL_TRUE);
chanmap, count, &device->Dry.NumChannels);
device->Dry.CoeffCount = coeffcount;
memset(&device->FOAOut.Ambi, 0, sizeof(device->FOAOut.Ambi));
@@ -681,7 +670,7 @@ static void InitCustomPanning(ALCdevice *device, const AmbDecConf *conf, const A
}
SetChannelMap(device->RealOut.ChannelName, device->Dry.Ambi.Coeffs, chanmap,
conf->NumSpeakers, &device->Dry.NumChannels, AL_FALSE);
conf->NumSpeakers, &device->Dry.NumChannels);
device->Dry.CoeffCount = (conf->ChanMask > 0x1ff) ? 16 :
(conf->ChanMask > 0xf) ? 9 : 4;