From c3cd4c80b2a248918da9d049487213c4cc8c128f Mon Sep 17 00:00:00 2001 From: Chris Robinson Date: Thu, 9 Dec 2010 16:37:23 -0800 Subject: Use a matrix when rendering to the dry buffer --- Alc/ALu.c | 106 ++++++++++++++++++++++++++++++++++++++++++++---------------- Alc/mixer.c | 73 ++++++++++++++++++++--------------------- 2 files changed, 115 insertions(+), 64 deletions(-) (limited to 'Alc') diff --git a/Alc/ALu.c b/Alc/ALu.c index e0fd5c9f..d831e9ca 100644 --- a/Alc/ALu.c +++ b/Alc/ALu.c @@ -150,15 +150,23 @@ ALvoid CalcNonAttnSourceParams(ALsource *ALSource, const ALCcontext *ALContext) break; } - if(Channels == FmtStereo) + for(i = 0;i < MAXCHANNELS;i++) { - for(i = 0;i < MAXCHANNELS;i++) - ALSource->Params.DryGains[i] = 0.0f; + ALuint i2; + for(i2 = 0;i2 < MAXCHANNELS;i2++) + ALSource->Params.DryGains[i][i2] = 0.0f; + } + switch(Channels) + { + case FmtMono: + ALSource->Params.DryGains[0][FRONT_CENTER] = DryGain * ListenerGain; + break; + case FmtStereo: if(DupStereo == AL_FALSE) { - ALSource->Params.DryGains[FRONT_LEFT] = DryGain * ListenerGain; - ALSource->Params.DryGains[FRONT_RIGHT] = DryGain * ListenerGain; + ALSource->Params.DryGains[0][FRONT_LEFT] = DryGain * ListenerGain; + ALSource->Params.DryGains[1][FRONT_RIGHT] = DryGain * ListenerGain; } else { @@ -166,43 +174,81 @@ ALvoid CalcNonAttnSourceParams(ALsource *ALSource, const ALCcontext *ALContext) { case DevFmtMono: case DevFmtStereo: - ALSource->Params.DryGains[FRONT_LEFT] = DryGain * ListenerGain; - ALSource->Params.DryGains[FRONT_RIGHT] = DryGain * ListenerGain; + ALSource->Params.DryGains[0][FRONT_LEFT] = DryGain * ListenerGain; + ALSource->Params.DryGains[1][FRONT_RIGHT] = DryGain * ListenerGain; break; case DevFmtQuad: case DevFmtX51: DryGain *= aluSqrt(2.0f/4.0f); - ALSource->Params.DryGains[FRONT_LEFT] = DryGain * ListenerGain; - ALSource->Params.DryGains[FRONT_RIGHT] = DryGain * ListenerGain; - ALSource->Params.DryGains[BACK_LEFT] = DryGain * ListenerGain; - ALSource->Params.DryGains[BACK_RIGHT] = DryGain * ListenerGain; + ALSource->Params.DryGains[0][FRONT_LEFT] = DryGain * ListenerGain; + ALSource->Params.DryGains[1][FRONT_RIGHT] = DryGain * ListenerGain; + ALSource->Params.DryGains[0][BACK_LEFT] = DryGain * ListenerGain; + ALSource->Params.DryGains[1][BACK_RIGHT] = DryGain * ListenerGain; break; case DevFmtX61: DryGain *= aluSqrt(2.0f/4.0f); - ALSource->Params.DryGains[FRONT_LEFT] = DryGain * ListenerGain; - ALSource->Params.DryGains[FRONT_RIGHT] = DryGain * ListenerGain; - ALSource->Params.DryGains[SIDE_LEFT] = DryGain * ListenerGain; - ALSource->Params.DryGains[SIDE_RIGHT] = DryGain * ListenerGain; + ALSource->Params.DryGains[0][FRONT_LEFT] = DryGain * ListenerGain; + ALSource->Params.DryGains[1][FRONT_RIGHT] = DryGain * ListenerGain; + ALSource->Params.DryGains[0][SIDE_LEFT] = DryGain * ListenerGain; + ALSource->Params.DryGains[1][SIDE_RIGHT] = DryGain * ListenerGain; break; case DevFmtX71: DryGain *= aluSqrt(2.0f/6.0f); - ALSource->Params.DryGains[FRONT_LEFT] = DryGain * ListenerGain; - ALSource->Params.DryGains[FRONT_RIGHT] = DryGain * ListenerGain; - ALSource->Params.DryGains[BACK_LEFT] = DryGain * ListenerGain; - ALSource->Params.DryGains[BACK_RIGHT] = DryGain * ListenerGain; - ALSource->Params.DryGains[SIDE_LEFT] = DryGain * ListenerGain; - ALSource->Params.DryGains[SIDE_RIGHT] = DryGain * ListenerGain; + ALSource->Params.DryGains[0][FRONT_LEFT] = DryGain * ListenerGain; + ALSource->Params.DryGains[1][FRONT_RIGHT] = DryGain * ListenerGain; + ALSource->Params.DryGains[0][BACK_LEFT] = DryGain * ListenerGain; + ALSource->Params.DryGains[1][BACK_RIGHT] = DryGain * ListenerGain; + ALSource->Params.DryGains[0][SIDE_LEFT] = DryGain * ListenerGain; + ALSource->Params.DryGains[1][SIDE_RIGHT] = DryGain * ListenerGain; break; } } - } - else - { - for(i = 0;i < MAXCHANNELS;i++) - ALSource->Params.DryGains[i] = DryGain * ListenerGain; + break; + + case FmtRear: + ALSource->Params.DryGains[0][BACK_LEFT] = DryGain * ListenerGain; + ALSource->Params.DryGains[1][BACK_RIGHT] = DryGain * ListenerGain; + break; + + case FmtQuad: + ALSource->Params.DryGains[0][FRONT_LEFT] = DryGain * ListenerGain; + ALSource->Params.DryGains[1][FRONT_RIGHT] = DryGain * ListenerGain; + ALSource->Params.DryGains[2][BACK_LEFT] = DryGain * ListenerGain; + ALSource->Params.DryGains[3][BACK_RIGHT] = DryGain * ListenerGain; + break; + + case FmtX51: + ALSource->Params.DryGains[0][FRONT_LEFT] = DryGain * ListenerGain; + ALSource->Params.DryGains[1][FRONT_RIGHT] = DryGain * ListenerGain; + ALSource->Params.DryGains[2][FRONT_CENTER] = DryGain * ListenerGain; + ALSource->Params.DryGains[3][LFE] = DryGain * ListenerGain; + ALSource->Params.DryGains[4][BACK_LEFT] = DryGain * ListenerGain; + ALSource->Params.DryGains[5][BACK_RIGHT] = DryGain * ListenerGain; + break; + + case FmtX61: + ALSource->Params.DryGains[0][FRONT_LEFT] = DryGain * ListenerGain; + ALSource->Params.DryGains[1][FRONT_RIGHT] = DryGain * ListenerGain; + ALSource->Params.DryGains[2][FRONT_CENTER] = DryGain * ListenerGain; + ALSource->Params.DryGains[3][LFE] = DryGain * ListenerGain; + ALSource->Params.DryGains[4][BACK_CENTER] = DryGain * ListenerGain; + ALSource->Params.DryGains[5][SIDE_LEFT] = DryGain * ListenerGain; + ALSource->Params.DryGains[6][SIDE_RIGHT] = DryGain * ListenerGain; + break; + + case FmtX71: + ALSource->Params.DryGains[0][FRONT_LEFT] = DryGain * ListenerGain; + ALSource->Params.DryGains[1][FRONT_RIGHT] = DryGain * ListenerGain; + ALSource->Params.DryGains[2][FRONT_CENTER] = DryGain * ListenerGain; + ALSource->Params.DryGains[3][LFE] = DryGain * ListenerGain; + ALSource->Params.DryGains[4][BACK_LEFT] = DryGain * ListenerGain; + ALSource->Params.DryGains[5][BACK_RIGHT] = DryGain * ListenerGain; + ALSource->Params.DryGains[6][SIDE_LEFT] = DryGain * ListenerGain; + ALSource->Params.DryGains[7][SIDE_RIGHT] = DryGain * ListenerGain; + break; } for(i = 0;i < NumSends;i++) @@ -615,12 +661,16 @@ ALvoid CalcSourceParams(ALsource *ALSource, const ALCcontext *ALContext) // has low complexity AmbientGain = aluSqrt(1.0/Device->NumChan); for(s = 0;s < MAXCHANNELS;s++) - ALSource->Params.DryGains[s] = 0.0f; + { + ALuint s2; + for(s2 = 0;s2 < MAXCHANNELS;s2++) + ALSource->Params.DryGains[s][s2] = 0.0f; + } for(s = 0;s < (ALsizei)Device->NumChan;s++) { Channel chan = Device->Speaker2Chan[s]; ALfloat gain = AmbientGain + (SpeakerGain[chan]-AmbientGain)*DirGain; - ALSource->Params.DryGains[chan] = DryGain * gain; + ALSource->Params.DryGains[0][chan] = DryGain * gain; } /* Update filter coefficients. */ diff --git a/Alc/mixer.c b/Alc/mixer.c index 2ebce319..e0696d26 100644 --- a/Alc/mixer.c +++ b/Alc/mixer.c @@ -85,7 +85,7 @@ static void Mix_##T##_Mono_##sampler(ALsource *Source, ALCdevice *Device, \ PendingClicks = Device->PendingClicks; \ DryFilter = &Source->Params.iirFilter; \ for(i = 0;i < MAXCHANNELS;i++) \ - DrySend[i] = Source->Params.DryGains[i]; \ + DrySend[i] = Source->Params.DryGains[0][i]; \ \ pos = 0; \ frac = *DataPosFrac; \ @@ -197,21 +197,16 @@ static void Mix_##T##_Stereo_##sampler(ALsource *Source, ALCdevice *Device, \ const T *data, ALuint *DataPosInt, ALuint *DataPosFrac, \ ALuint OutPos, ALuint SamplesToDo, ALuint BufferSize) \ { \ - static const ALuint Channels = 2; \ - static const Channel chans[] = { \ - FRONT_LEFT, FRONT_RIGHT, \ - SIDE_LEFT, SIDE_RIGHT, \ - BACK_LEFT, BACK_RIGHT \ - }; \ + const ALuint Channels = 2; \ const ALfloat scaler = 1.0f/Channels; \ ALfloat (*DryBuffer)[MAXCHANNELS]; \ ALfloat *ClickRemoval, *PendingClicks; \ ALuint pos, frac; \ - ALfloat DrySend[MAXCHANNELS]; \ + ALfloat DrySend[Channels][MAXCHANNELS]; \ FILTER *DryFilter; \ ALuint BufferIdx; \ ALuint increment; \ - ALuint i, out; \ + ALuint i, out, c; \ ALfloat value; \ \ increment = Source->Params.Step; \ @@ -220,8 +215,11 @@ static void Mix_##T##_Stereo_##sampler(ALsource *Source, ALCdevice *Device, \ ClickRemoval = Device->ClickRemoval; \ PendingClicks = Device->PendingClicks; \ DryFilter = &Source->Params.iirFilter; \ - for(i = 0;i < MAXCHANNELS;i++) \ - DrySend[i] = Source->Params.DryGains[i]; \ + for(i = 0;i < Channels;i++) \ + { \ + for(c = 0;c < MAXCHANNELS;c++) \ + DrySend[i][c] = Source->Params.DryGains[i][c]; \ + } \ \ pos = 0; \ frac = *DataPosFrac; \ @@ -232,10 +230,9 @@ static void Mix_##T##_Stereo_##sampler(ALsource *Source, ALCdevice *Device, \ { \ value = sampler(data + pos*Channels + i, Channels, frac); \ \ - value = lpFilter2PC(DryFilter, chans[i]*2, value); \ - ClickRemoval[chans[i+0]] -= value*DrySend[chans[i+0]]; \ - ClickRemoval[chans[i+2]] -= value*DrySend[chans[i+2]]; \ - ClickRemoval[chans[i+4]] -= value*DrySend[chans[i+4]]; \ + value = lpFilter2PC(DryFilter, i*2, value); \ + for(c = 0;c < MAXCHANNELS;c++) \ + ClickRemoval[c] -= value*DrySend[i][c]; \ } \ } \ for(BufferIdx = 0;BufferIdx < BufferSize;BufferIdx++) \ @@ -244,10 +241,9 @@ static void Mix_##T##_Stereo_##sampler(ALsource *Source, ALCdevice *Device, \ { \ value = sampler(data + pos*Channels + i, Channels, frac); \ \ - value = lpFilter2P(DryFilter, chans[i]*2, value); \ - DryBuffer[OutPos][chans[i+0]] += value*DrySend[chans[i+0]]; \ - DryBuffer[OutPos][chans[i+2]] += value*DrySend[chans[i+2]]; \ - DryBuffer[OutPos][chans[i+4]] += value*DrySend[chans[i+4]]; \ + value = lpFilter2P(DryFilter, i*2, value); \ + for(c = 0;c < MAXCHANNELS;c++) \ + DryBuffer[OutPos][c] += value*DrySend[i][c]; \ } \ \ frac += increment; \ @@ -261,10 +257,9 @@ static void Mix_##T##_Stereo_##sampler(ALsource *Source, ALCdevice *Device, \ { \ value = sampler(data + pos*Channels + i, Channels, frac); \ \ - value = lpFilter2PC(DryFilter, chans[i]*2, value); \ - PendingClicks[chans[i+0]] += value*DrySend[chans[i+0]]; \ - PendingClicks[chans[i+2]] += value*DrySend[chans[i+2]]; \ - PendingClicks[chans[i+4]] += value*DrySend[chans[i+4]]; \ + value = lpFilter2PC(DryFilter, i*2, value); \ + for(c = 0;c < MAXCHANNELS;c++) \ + PendingClicks[c] += value*DrySend[i][c]; \ } \ } \ \ @@ -296,7 +291,7 @@ static void Mix_##T##_Stereo_##sampler(ALsource *Source, ALCdevice *Device, \ { \ value = sampler(data + pos*Channels + i, Channels, frac); \ \ - value = lpFilter1PC(WetFilter, chans[i], value); \ + value = lpFilter1PC(WetFilter, i, value); \ WetClickRemoval[0] -= value*WetSend * scaler; \ } \ } \ @@ -306,7 +301,7 @@ static void Mix_##T##_Stereo_##sampler(ALsource *Source, ALCdevice *Device, \ { \ value = sampler(data + pos*Channels + i, Channels, frac); \ \ - value = lpFilter1P(WetFilter, chans[i], value); \ + value = lpFilter1P(WetFilter, i, value); \ WetBuffer[OutPos] += value*WetSend * scaler; \ } \ \ @@ -321,7 +316,7 @@ static void Mix_##T##_Stereo_##sampler(ALsource *Source, ALCdevice *Device, \ { \ value = sampler(data + pos*Channels + i, Channels, frac); \ \ - value = lpFilter1PC(WetFilter, chans[i], value); \ + value = lpFilter1PC(WetFilter, i, value); \ WetPendingClicks[0] += value*WetSend * scaler; \ } \ } \ @@ -370,11 +365,11 @@ static void Mix_##T##_##count##_##sampler(ALsource *Source, ALCdevice *Device,\ ALfloat (*DryBuffer)[MAXCHANNELS]; \ ALfloat *ClickRemoval, *PendingClicks; \ ALuint pos, frac; \ - ALfloat DrySend[MAXCHANNELS]; \ + ALfloat DrySend[Channels][MAXCHANNELS]; \ FILTER *DryFilter; \ ALuint BufferIdx; \ ALuint increment; \ - ALuint i, out; \ + ALuint i, out, c; \ ALfloat value; \ \ increment = Source->Params.Step; \ @@ -383,8 +378,11 @@ static void Mix_##T##_##count##_##sampler(ALsource *Source, ALCdevice *Device,\ ClickRemoval = Device->ClickRemoval; \ PendingClicks = Device->PendingClicks; \ DryFilter = &Source->Params.iirFilter; \ - for(i = 0;i < MAXCHANNELS;i++) \ - DrySend[i] = Source->Params.DryGains[i]; \ + for(i = 0;i < Channels;i++) \ + { \ + for(c = 0;c < MAXCHANNELS;c++) \ + DrySend[i][c] = Source->Params.DryGains[i][c]; \ + } \ \ pos = 0; \ frac = *DataPosFrac; \ @@ -395,8 +393,9 @@ static void Mix_##T##_##count##_##sampler(ALsource *Source, ALCdevice *Device,\ { \ value = sampler(data + pos*Channels + i, Channels, frac); \ \ - value = lpFilter2PC(DryFilter, chans[i]*2, value); \ - ClickRemoval[chans[i]] -= value*DrySend[chans[i]]; \ + value = lpFilter2PC(DryFilter, i*2, value); \ + for(c = 0;c < MAXCHANNELS;c++) \ + ClickRemoval[c] -= value*DrySend[i][c]; \ } \ } \ for(BufferIdx = 0;BufferIdx < BufferSize;BufferIdx++) \ @@ -405,8 +404,9 @@ static void Mix_##T##_##count##_##sampler(ALsource *Source, ALCdevice *Device,\ { \ value = sampler(data + pos*Channels + i, Channels, frac); \ \ - value = lpFilter2P(DryFilter, chans[i]*2, value); \ - DryBuffer[OutPos][chans[i]] += value*DrySend[chans[i]]; \ + value = lpFilter2P(DryFilter, i*2, value); \ + for(c = 0;c < MAXCHANNELS;c++) \ + DryBuffer[OutPos][c] += value*DrySend[i][c]; \ } \ \ frac += increment; \ @@ -420,8 +420,9 @@ static void Mix_##T##_##count##_##sampler(ALsource *Source, ALCdevice *Device,\ { \ value = sampler(data + pos*Channels + i, Channels, frac); \ \ - value = lpFilter2PC(DryFilter, chans[i]*2, value); \ - PendingClicks[chans[i]] += value*DrySend[chans[i]]; \ + value = lpFilter2PC(DryFilter, i*2, value); \ + for(c = 0;c < MAXCHANNELS;c++) \ + PendingClicks[c] += value*DrySend[i][c]; \ } \ } \ \ -- cgit v1.2.3