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authorChris Robinson <[email protected]>2011-05-02 02:22:30 -0700
committerChris Robinson <[email protected]>2011-05-02 02:22:30 -0700
commitf843b7e2e362d3fc521771cdf8847de0a6f3a8d0 (patch)
tree00a92ec18d12f64713be07a111ceb1ea7872b74e /Alc/mixer.c
parenteea86ab8916c5e0213dabc404a191bbf0e0affbe (diff)
Implement HRTF mixers for multi-channel sources
Diffstat (limited to 'Alc/mixer.c')
-rw-r--r--Alc/mixer.c281
1 files changed, 269 insertions, 12 deletions
diff --git a/Alc/mixer.c b/Alc/mixer.c
index f229b56a..6afb7de8 100644
--- a/Alc/mixer.c
+++ b/Alc/mixer.c
@@ -94,8 +94,8 @@ void Mix_Hrtf_##T##_1_##sampler(ALsource *Source, ALCdevice *Device, \
PendingClicks = Device->PendingClicks; \
DryFilter = &Source->Params.iirFilter; \
\
- HrtfCoeffs = &Source->Params.HrtfCoeffs[0][0]; \
- HrtfHistory = Source->HrtfHistory; \
+ HrtfCoeffs = &Source->Params.HrtfCoeffs[0][0][0]; \
+ HrtfHistory = Source->HrtfHistory[0]; \
HrtfOffset = Source->HrtfOffset + OutPos; \
\
pos = 0; \
@@ -228,6 +228,233 @@ DECL_TEMPLATE(ALubyte, cubic8)
#undef DECL_TEMPLATE
+#define DECL_TEMPLATE(T, chnct, sampler) \
+static void Mix_Hrtf_##T##_##chnct##_##sampler( \
+ ALsource *Source, ALCdevice *Device, \
+ const T *data, ALuint *DataPosInt, ALuint *DataPosFrac, \
+ ALuint OutPos, ALuint SamplesToDo, ALuint BufferSize) \
+{ \
+ const ALuint Channels = chnct; \
+ const ALfloat scaler = 1.0f/chnct; \
+ ALfloat (*DryBuffer)[MAXCHANNELS]; \
+ ALfloat *ClickRemoval, *PendingClicks; \
+ const ALfloat (*HrtfCoeffs)[HRTF_LENGTH][2]; \
+ ALfloat (*HrtfHistory)[HRTF_LENGTH]; \
+ ALuint HrtfOffset; \
+ ALuint pos, frac; \
+ FILTER *DryFilter; \
+ ALuint BufferIdx; \
+ ALuint increment; \
+ ALuint i, out, c; \
+ ALfloat value; \
+ \
+ increment = Source->Params.Step; \
+ \
+ DryBuffer = Device->DryBuffer; \
+ ClickRemoval = Device->ClickRemoval; \
+ PendingClicks = Device->PendingClicks; \
+ DryFilter = &Source->Params.iirFilter; \
+ \
+ HrtfCoeffs = &Source->Params.HrtfCoeffs[0]; \
+ HrtfHistory = Source->HrtfHistory; \
+ HrtfOffset = Source->HrtfOffset + OutPos; \
+ \
+ pos = 0; \
+ frac = *DataPosFrac; \
+ \
+ if(LIKELY(OutPos == 0)) \
+ { \
+ for(i = 0;i < Channels;i++) \
+ { \
+ value = sampler(data + pos*Channels + i, Channels, frac); \
+ value = lpFilter2PC(DryFilter, i*2, value); \
+ \
+ HrtfHistory[i][HrtfOffset&HRTF_LENGTH_MASK] = value; \
+ for(c = 0;c < HRTF_LENGTH;c++) \
+ { \
+ ClickRemoval[FRONT_LEFT] -= \
+ HrtfHistory[i][(HrtfOffset-c)&HRTF_LENGTH_MASK] * \
+ HrtfCoeffs[i][c][0]; \
+ ClickRemoval[FRONT_RIGHT] -= \
+ HrtfHistory[i][(HrtfOffset-c)&HRTF_LENGTH_MASK] * \
+ HrtfCoeffs[i][c][1]; \
+ } \
+ } \
+ } \
+ for(BufferIdx = 0;BufferIdx < BufferSize;BufferIdx++) \
+ { \
+ for(i = 0;i < Channels;i++) \
+ { \
+ value = sampler(data + pos*Channels + i, Channels, frac); \
+ value = lpFilter2P(DryFilter, i*2, value); \
+ \
+ HrtfHistory[i][HrtfOffset&HRTF_LENGTH_MASK] = value; \
+ for(c = 0;c < HRTF_LENGTH;c++) \
+ { \
+ DryBuffer[OutPos][FRONT_LEFT] += \
+ HrtfHistory[i][(HrtfOffset-c)&HRTF_LENGTH_MASK] * \
+ HrtfCoeffs[i][c][0]; \
+ DryBuffer[OutPos][FRONT_RIGHT] += \
+ HrtfHistory[i][(HrtfOffset-c)&HRTF_LENGTH_MASK] * \
+ HrtfCoeffs[i][c][1]; \
+ } \
+ } \
+ HrtfOffset++; \
+ \
+ frac += increment; \
+ pos += frac>>FRACTIONBITS; \
+ frac &= FRACTIONMASK; \
+ OutPos++; \
+ } \
+ if(LIKELY(OutPos == SamplesToDo)) \
+ { \
+ for(i = 0;i < Channels;i++) \
+ { \
+ value = sampler(data + pos*Channels + i, Channels, frac); \
+ value = lpFilter2PC(DryFilter, i*2, value); \
+ \
+ HrtfHistory[i][HrtfOffset&HRTF_LENGTH_MASK] = value; \
+ for(c = 0;c < HRTF_LENGTH;c++) \
+ { \
+ PendingClicks[FRONT_LEFT] += \
+ HrtfHistory[i][(HrtfOffset-c)&HRTF_LENGTH_MASK] * \
+ HrtfCoeffs[i][c][0]; \
+ PendingClicks[FRONT_RIGHT] += \
+ HrtfHistory[i][(HrtfOffset-c)&HRTF_LENGTH_MASK] * \
+ HrtfCoeffs[i][c][1]; \
+ } \
+ } \
+ } \
+ \
+ for(out = 0;out < Device->NumAuxSends;out++) \
+ { \
+ ALfloat WetSend; \
+ ALfloat *WetBuffer; \
+ ALfloat *WetClickRemoval; \
+ ALfloat *WetPendingClicks; \
+ FILTER *WetFilter; \
+ \
+ if(!Source->Send[out].Slot || \
+ Source->Send[out].Slot->effect.type == AL_EFFECT_NULL) \
+ continue; \
+ \
+ WetBuffer = Source->Send[out].Slot->WetBuffer; \
+ WetClickRemoval = Source->Send[out].Slot->ClickRemoval; \
+ WetPendingClicks = Source->Send[out].Slot->PendingClicks; \
+ WetFilter = &Source->Params.Send[out].iirFilter; \
+ WetSend = Source->Params.Send[out].WetGain; \
+ \
+ pos = 0; \
+ frac = *DataPosFrac; \
+ OutPos -= BufferSize; \
+ \
+ if(LIKELY(OutPos == 0)) \
+ { \
+ for(i = 0;i < Channels;i++) \
+ { \
+ value = sampler(data + pos*Channels + i, Channels, frac); \
+ value = lpFilter1PC(WetFilter, i, value); \
+ \
+ WetClickRemoval[0] -= value*WetSend * scaler; \
+ } \
+ } \
+ for(BufferIdx = 0;BufferIdx < BufferSize;BufferIdx++) \
+ { \
+ for(i = 0;i < Channels;i++) \
+ { \
+ value = sampler(data + pos*Channels + i, Channels, frac); \
+ value = lpFilter1P(WetFilter, i, value); \
+ \
+ WetBuffer[OutPos] += value*WetSend * scaler; \
+ } \
+ \
+ frac += increment; \
+ pos += frac>>FRACTIONBITS; \
+ frac &= FRACTIONMASK; \
+ OutPos++; \
+ } \
+ if(LIKELY(OutPos == SamplesToDo)) \
+ { \
+ for(i = 0;i < Channels;i++) \
+ { \
+ value = sampler(data + pos*Channels + i, Channels, frac); \
+ value = lpFilter1PC(WetFilter, i, value); \
+ \
+ WetPendingClicks[0] += value*WetSend * scaler; \
+ } \
+ } \
+ } \
+ *DataPosInt += pos; \
+ *DataPosFrac = frac; \
+}
+
+DECL_TEMPLATE(ALfloat, 2, point32)
+DECL_TEMPLATE(ALfloat, 2, lerp32)
+DECL_TEMPLATE(ALfloat, 2, cubic32)
+
+DECL_TEMPLATE(ALshort, 2, point16)
+DECL_TEMPLATE(ALshort, 2, lerp16)
+DECL_TEMPLATE(ALshort, 2, cubic16)
+
+DECL_TEMPLATE(ALubyte, 2, point8)
+DECL_TEMPLATE(ALubyte, 2, lerp8)
+DECL_TEMPLATE(ALubyte, 2, cubic8)
+
+
+DECL_TEMPLATE(ALfloat, 4, point32)
+DECL_TEMPLATE(ALfloat, 4, lerp32)
+DECL_TEMPLATE(ALfloat, 4, cubic32)
+
+DECL_TEMPLATE(ALshort, 4, point16)
+DECL_TEMPLATE(ALshort, 4, lerp16)
+DECL_TEMPLATE(ALshort, 4, cubic16)
+
+DECL_TEMPLATE(ALubyte, 4, point8)
+DECL_TEMPLATE(ALubyte, 4, lerp8)
+DECL_TEMPLATE(ALubyte, 4, cubic8)
+
+
+DECL_TEMPLATE(ALfloat, 6, point32)
+DECL_TEMPLATE(ALfloat, 6, lerp32)
+DECL_TEMPLATE(ALfloat, 6, cubic32)
+
+DECL_TEMPLATE(ALshort, 6, point16)
+DECL_TEMPLATE(ALshort, 6, lerp16)
+DECL_TEMPLATE(ALshort, 6, cubic16)
+
+DECL_TEMPLATE(ALubyte, 6, point8)
+DECL_TEMPLATE(ALubyte, 6, lerp8)
+DECL_TEMPLATE(ALubyte, 6, cubic8)
+
+
+DECL_TEMPLATE(ALfloat, 7, point32)
+DECL_TEMPLATE(ALfloat, 7, lerp32)
+DECL_TEMPLATE(ALfloat, 7, cubic32)
+
+DECL_TEMPLATE(ALshort, 7, point16)
+DECL_TEMPLATE(ALshort, 7, lerp16)
+DECL_TEMPLATE(ALshort, 7, cubic16)
+
+DECL_TEMPLATE(ALubyte, 7, point8)
+DECL_TEMPLATE(ALubyte, 7, lerp8)
+DECL_TEMPLATE(ALubyte, 7, cubic8)
+
+
+DECL_TEMPLATE(ALfloat, 8, point32)
+DECL_TEMPLATE(ALfloat, 8, lerp32)
+DECL_TEMPLATE(ALfloat, 8, cubic32)
+
+DECL_TEMPLATE(ALshort, 8, point16)
+DECL_TEMPLATE(ALshort, 8, lerp16)
+DECL_TEMPLATE(ALshort, 8, cubic16)
+
+DECL_TEMPLATE(ALubyte, 8, point8)
+DECL_TEMPLATE(ALubyte, 8, lerp8)
+DECL_TEMPLATE(ALubyte, 8, cubic8)
+
+#undef DECL_TEMPLATE
+
+
#define DECL_TEMPLATE(T, sampler) \
static void Mix_##T##_1_##sampler(ALsource *Source, ALCdevice *Device, \
const T *data, ALuint *DataPosInt, ALuint *DataPosFrac, \
@@ -577,24 +804,54 @@ static void Mix_##T##_##sampler(ALsource *Source, ALCdevice *Device, \
break; \
case FmtStereo: \
case FmtRear: \
- Mix_##T##_2_##sampler(Source, Device, Data, DataPosInt, DataPosFrac, \
- OutPos, SamplesToDo, BufferSize); \
+ if((Device->Flags&DEVICE_USE_HRTF)) \
+ Mix_Hrtf_##T##_2_##sampler(Source, Device, Data, \
+ DataPosInt, DataPosFrac, \
+ OutPos, SamplesToDo, BufferSize); \
+ else \
+ Mix_##T##_2_##sampler(Source, Device, Data, \
+ DataPosInt, DataPosFrac, \
+ OutPos, SamplesToDo, BufferSize); \
break; \
case FmtQuad: \
- Mix_##T##_4_##sampler(Source, Device, Data, DataPosInt, DataPosFrac, \
- OutPos, SamplesToDo, BufferSize); \
+ if((Device->Flags&DEVICE_USE_HRTF)) \
+ Mix_Hrtf_##T##_4_##sampler(Source, Device, Data, \
+ DataPosInt, DataPosFrac, \
+ OutPos, SamplesToDo, BufferSize); \
+ else \
+ Mix_##T##_4_##sampler(Source, Device, Data, \
+ DataPosInt, DataPosFrac, \
+ OutPos, SamplesToDo, BufferSize); \
break; \
case FmtX51: \
- Mix_##T##_6_##sampler(Source, Device, Data, DataPosInt, DataPosFrac, \
- OutPos, SamplesToDo, BufferSize); \
+ if((Device->Flags&DEVICE_USE_HRTF)) \
+ Mix_Hrtf_##T##_6_##sampler(Source, Device, Data, \
+ DataPosInt, DataPosFrac, \
+ OutPos, SamplesToDo, BufferSize); \
+ else \
+ Mix_##T##_6_##sampler(Source, Device, Data, \
+ DataPosInt, DataPosFrac, \
+ OutPos, SamplesToDo, BufferSize); \
break; \
case FmtX61: \
- Mix_##T##_7_##sampler(Source, Device, Data, DataPosInt, DataPosFrac, \
- OutPos, SamplesToDo, BufferSize); \
+ if((Device->Flags&DEVICE_USE_HRTF)) \
+ Mix_Hrtf_##T##_7_##sampler(Source, Device, Data, \
+ DataPosInt, DataPosFrac, \
+ OutPos, SamplesToDo, BufferSize); \
+ else \
+ Mix_##T##_7_##sampler(Source, Device, Data, \
+ DataPosInt, DataPosFrac, \
+ OutPos, SamplesToDo, BufferSize); \
break; \
case FmtX71: \
- Mix_##T##_8_##sampler(Source, Device, Data, DataPosInt, DataPosFrac, \
- OutPos, SamplesToDo, BufferSize); \
+ if((Device->Flags&DEVICE_USE_HRTF)) \
+ Mix_Hrtf_##T##_8_##sampler(Source, Device, Data, \
+ DataPosInt, DataPosFrac, \
+ OutPos, SamplesToDo, BufferSize); \
+ else \
+ Mix_##T##_8_##sampler(Source, Device, Data, \
+ DataPosInt, DataPosFrac, \
+ OutPos, SamplesToDo, BufferSize); \
break; \
} \
}
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