diff options
Diffstat (limited to 'Alc')
| -rw-r--r-- | Alc/panning.c | 40 |
1 files changed, 14 insertions, 26 deletions
diff --git a/Alc/panning.c b/Alc/panning.c index 5ff37d0a..7f9e74e2 100644 --- a/Alc/panning.c +++ b/Alc/panning.c @@ -416,7 +416,8 @@ static const ChannelMap MonoCfg[1] = { { 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 InitNearFieldCtrl(ALCdevice *device, ALfloat ctrl_dist, ALsizei order, bool periphonic) +static void InitNearFieldCtrl(ALCdevice *device, ALfloat ctrl_dist, ALsizei order, + const ALsizei *restrict chans_per_order) { const char *devname = alstr_get_cstr(device->DeviceName); ALsizei i; @@ -428,13 +429,8 @@ static void InitNearFieldCtrl(ALCdevice *device, ALfloat ctrl_dist, ALsizei orde */ device->AvgSpeakerDist = minf(ctrl_dist, 10.0f); - device->Dry.NumChannelsPerOrder[0] = 1; - if(periphonic) - for(i = 1;i < order+1;i++) - device->Dry.NumChannelsPerOrder[i] = (i+1)*(i+1) - i*i; - else - for(i = 1;i < order+1;i++) - device->Dry.NumChannelsPerOrder[i] = (i*2+1) - ((i-1)*2+1); + for(i = 0;i < order+1;i++) + device->Dry.NumChannelsPerOrder[i] = chans_per_order[i]; for(;i < MAX_AMBI_ORDER+1;i++) device->Dry.NumChannelsPerOrder[i] = 0; } @@ -610,9 +606,12 @@ static void InitPanning(ALCdevice *device) if(ConfigValueFloat(devname, "decoder", "nfc-ref-delay", &nfc_delay) && nfc_delay > 0.0f) { + static const ALsizei chans_per_order[MAX_AMBI_ORDER+1] = { + 1, 3, 5, 7 + }; nfc_delay = clampf(nfc_delay, 0.001f, 1000.0f); InitNearFieldCtrl(device, nfc_delay * SPEEDOFSOUNDMETRESPERSEC, - device->AmbiOrder, true); + device->AmbiOrder, chans_per_order); } } else @@ -728,6 +727,8 @@ static void InitCustomPanning(ALCdevice *device, const AmbDecConf *conf, const A static void InitHQPanning(ALCdevice *device, const AmbDecConf *conf, const ALsizei speakermap[MAX_OUTPUT_CHANNELS]) { + static const ALsizei chans_per_order2d[MAX_AMBI_ORDER+1] = { 1, 2, 2, 2 }; + static const ALsizei chans_per_order3d[MAX_AMBI_ORDER+1] = { 1, 3, 5, 7 }; ALfloat avg_dist; ALsizei count; ALsizei i; @@ -804,7 +805,7 @@ static void InitHQPanning(ALCdevice *device, const AmbDecConf *conf, const ALsiz avg_dist /= (ALfloat)conf->NumSpeakers; InitNearFieldCtrl(device, avg_dist, (conf->ChanMask > 0x1ff) ? 3 : (conf->ChanMask > 0xf) ? 2 : 1, - !!(conf->ChanMask&AMBI_PERIPHONIC_MASK) + (conf->ChanMask&AMBI_PERIPHONIC_MASK) ? chans_per_order3d : chans_per_order2d ); InitDistanceComp(device, conf, speakermap); @@ -878,6 +879,7 @@ static void InitHrtfPanning(ALCdevice *device) 2.40192231e+00f, 1.86052102e+00f, 9.60768923e-01f }; static const ALsizei IndexMap[6] = { 0, 1, 2, 3, 4, 8 }; + static const ALsizei ChansPerOrder[MAX_AMBI_ORDER+1] = { 1, 3, 2, 0 }; const ALfloat (*restrict AmbiMatrix)[MAX_AMBI_COEFFS] = AmbiMatrixFOA; const ALfloat *restrict AmbiOrderHFGain = AmbiOrderHFGainFOA; ALsizei count = 4; @@ -932,22 +934,8 @@ static void InitHrtfPanning(ALCdevice *device) AmbiOrderHFGain ); - if(GetConfigValueBool(alstr_get_cstr(device->DeviceName), "decoder", "nfc", 1) && - device->HrtfHandle->distance > 0.0f) - { - /* NFC is only used when AvgSpeakerDist is greater than 0, and can only - * be used when rendering to an ambisonic buffer. - */ - device->AvgSpeakerDist = minf(device->HrtfHandle->distance, 10.0f); - - i = 0; - device->Dry.NumChannelsPerOrder[i++] = 1; - device->Dry.NumChannelsPerOrder[i++] = 3; - if(device->AmbiUp) - device->Dry.NumChannelsPerOrder[i++] = 2; - while(i < MAX_AMBI_ORDER+1) - device->Dry.NumChannelsPerOrder[i++] = 0; - } + InitNearFieldCtrl(device, device->HrtfHandle->distance, device->AmbiUp ? 2 : 1, + ChansPerOrder); } static void InitUhjPanning(ALCdevice *device) |