132 lines
4.6 KiB
C
132 lines
4.6 KiB
C
#include "config.h"
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#include <assert.h>
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#include "alMain.h"
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#include "alu.h"
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#include "alSource.h"
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#include "alAuxEffectSlot.h"
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static __inline ALfloat point32(const ALfloat *vals, ALuint frac)
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{ return vals[0]; (void)frac; }
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static __inline ALfloat lerp32(const ALfloat *vals, ALuint frac)
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{ return lerp(vals[0], vals[1], frac * (1.0f/FRACTIONONE)); }
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static __inline ALfloat cubic32(const ALfloat *vals, ALuint frac)
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{ return cubic(vals[-1], vals[0], vals[1], vals[2], frac * (1.0f/FRACTIONONE)); }
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void Resample_copy32_C(const ALfloat *data, ALuint frac,
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ALuint increment, ALfloat *RESTRICT OutBuffer, ALuint BufferSize)
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{
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(void)frac;
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assert(increment==FRACTIONONE);
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memcpy(OutBuffer, data, (BufferSize+1)*sizeof(ALfloat));
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}
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#define DECL_TEMPLATE(Sampler) \
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void Resample_##Sampler##_C(const ALfloat *data, ALuint frac, \
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ALuint increment, ALfloat *RESTRICT OutBuffer, ALuint BufferSize) \
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{ \
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ALuint pos = 0; \
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ALuint i; \
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\
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for(i = 0;i < BufferSize+1;i++) \
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{ \
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OutBuffer[i] = Sampler(data + pos, frac); \
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\
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frac += increment; \
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pos += frac>>FRACTIONBITS; \
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frac &= FRACTIONMASK; \
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} \
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}
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DECL_TEMPLATE(point32)
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DECL_TEMPLATE(lerp32)
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DECL_TEMPLATE(cubic32)
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#undef DECL_TEMPLATE
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static __inline void ApplyCoeffsStep(ALuint Offset, ALfloat (*RESTRICT Values)[2],
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const ALuint IrSize,
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ALfloat (*RESTRICT Coeffs)[2],
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const ALfloat (*RESTRICT CoeffStep)[2],
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ALfloat left, ALfloat right)
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{
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ALuint c;
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for(c = 0;c < IrSize;c++)
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{
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const ALuint off = (Offset+c)&HRIR_MASK;
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Values[off][0] += Coeffs[c][0] * left;
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Values[off][1] += Coeffs[c][1] * right;
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Coeffs[c][0] += CoeffStep[c][0];
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Coeffs[c][1] += CoeffStep[c][1];
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}
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}
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static __inline void ApplyCoeffs(ALuint Offset, ALfloat (*RESTRICT Values)[2],
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const ALuint IrSize,
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ALfloat (*RESTRICT Coeffs)[2],
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ALfloat left, ALfloat right)
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{
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ALuint c;
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for(c = 0;c < IrSize;c++)
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{
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const ALuint off = (Offset+c)&HRIR_MASK;
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Values[off][0] += Coeffs[c][0] * left;
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Values[off][1] += Coeffs[c][1] * right;
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}
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}
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#define SUFFIX C
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#include "mixer_inc.c"
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#undef SUFFIX
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void MixDirect_C(const DirectParams *params, const ALfloat *RESTRICT data, ALuint srcchan,
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ALuint OutPos, ALuint SamplesToDo, ALuint BufferSize)
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{
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ALfloat (*RESTRICT DryBuffer)[BUFFERSIZE] = params->OutBuffer;
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ALfloat *RESTRICT ClickRemoval = params->ClickRemoval;
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ALfloat *RESTRICT PendingClicks = params->PendingClicks;
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ALfloat DrySend;
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ALuint pos;
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ALuint c;
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for(c = 0;c < MaxChannels;c++)
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{
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DrySend = params->Gains[srcchan][c];
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if(DrySend < 0.00001f)
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continue;
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if(OutPos == 0)
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ClickRemoval[c] -= data[0]*DrySend;
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for(pos = 0;pos < BufferSize;pos++)
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DryBuffer[c][OutPos+pos] += data[pos]*DrySend;
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if(OutPos+pos == SamplesToDo)
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PendingClicks[c] += data[pos]*DrySend;
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}
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}
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void MixSend_C(const SendParams *params, const ALfloat *RESTRICT data,
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ALuint OutPos, ALuint SamplesToDo, ALuint BufferSize)
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{
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ALeffectslot *Slot = params->Slot;
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ALfloat (*RESTRICT WetBuffer)[BUFFERSIZE] = Slot->WetBuffer;
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ALfloat *RESTRICT WetClickRemoval = Slot->ClickRemoval;
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ALfloat *RESTRICT WetPendingClicks = Slot->PendingClicks;
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ALfloat WetSend = params->Gain;
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ALuint pos;
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if(WetSend < 0.00001f)
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return;
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if(OutPos == 0)
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WetClickRemoval[0] -= data[0] * WetSend;
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for(pos = 0;pos < BufferSize;pos++)
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WetBuffer[0][OutPos+pos] += data[pos] * WetSend;
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if(OutPos+pos == SamplesToDo)
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WetPendingClicks[0] += data[pos] * WetSend;
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}
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