55f851093f
They are still there for auxiliary sends. However, they should go away soon enough too, and then we won't have to mess around with calculating extra "predictive" samples in the mixer.
137 lines
4.7 KiB
C
137 lines
4.7 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 UNUSED(frac))
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{ return vals[0]; }
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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 UNUSED(frac),
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ALuint increment, ALfloat *restrict OutBuffer, ALuint BufferSize)
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{
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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(DirectParams *params, const ALfloat *restrict data, ALuint srcchan,
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ALuint OutPos, ALuint BufferSize)
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{
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ALfloat (*restrict OutBuffer)[BUFFERSIZE] = params->OutBuffer;
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ALuint Counter = maxu(params->Counter, OutPos) - OutPos;
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ALfloat DrySend, Step;
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ALuint c;
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for(c = 0;c < MaxChannels;c++)
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{
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ALuint pos = 0;
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Step = params->Mix.Gains.Step[srcchan][c];
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if(Step != 0.0f && Counter > 0)
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{
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DrySend = params->Mix.Gains.Current[srcchan][c];
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for(;pos < BufferSize && pos < Counter;pos++)
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{
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OutBuffer[c][OutPos+pos] += data[pos]*DrySend;
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DrySend *= Step;
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}
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params->Mix.Gains.Current[srcchan][c] = DrySend;
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}
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DrySend = params->Mix.Gains.Target[srcchan][c];
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if(!(DrySend > GAIN_SILENCE_THRESHOLD))
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continue;
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for(;pos < BufferSize;pos++)
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OutBuffer[c][OutPos+pos] += data[pos]*DrySend;
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}
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}
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void MixSend_C(SendParams *params, const ALfloat *restrict data,
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ALuint OutPos, ALuint SamplesToDo, ALuint BufferSize)
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{
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ALfloat (*restrict OutBuffer)[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 WetSend;
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ALuint pos;
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WetSend = params->Gain;
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if(!(WetSend > GAIN_SILENCE_THRESHOLD))
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return;
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if(OutPos == 0)
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ClickRemoval[0] -= data[0] * WetSend;
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for(pos = 0;pos < BufferSize;pos++)
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OutBuffer[0][OutPos+pos] += data[pos] * WetSend;
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if(OutPos+pos == SamplesToDo)
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PendingClicks[0] += data[pos] * WetSend;
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}
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