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#include "config.h"
#include <assert.h>
#include "alMain.h"
#include "alu.h"
#include "alSource.h"
#include "alAuxEffectSlot.h"
static inline ALfloat point32(const ALfloat *vals, ALuint UNUSED(frac))
{ return vals[0]; }
static inline ALfloat lerp32(const ALfloat *vals, ALuint frac)
{ return lerp(vals[0], vals[1], frac * (1.0f/FRACTIONONE)); }
static inline ALfloat cubic32(const ALfloat *vals, ALuint frac)
{ return cubic(vals[-1], vals[0], vals[1], vals[2], frac * (1.0f/FRACTIONONE)); }
void Resample_copy32_C(const ALfloat *data, ALuint UNUSED(frac),
ALuint increment, ALfloat *restrict OutBuffer, ALuint BufferSize)
{
assert(increment==FRACTIONONE);
memcpy(OutBuffer, data, BufferSize*sizeof(ALfloat));
}
#define DECL_TEMPLATE(Sampler) \
void Resample_##Sampler##_C(const ALfloat *data, ALuint frac, \
ALuint increment, ALfloat *restrict OutBuffer, ALuint BufferSize) \
{ \
ALuint pos = 0; \
ALuint i; \
\
for(i = 0;i < BufferSize;i++) \
{ \
OutBuffer[i] = Sampler(data + pos, frac); \
\
frac += increment; \
pos += frac>>FRACTIONBITS; \
frac &= FRACTIONMASK; \
} \
}
DECL_TEMPLATE(point32)
DECL_TEMPLATE(lerp32)
DECL_TEMPLATE(cubic32)
#undef DECL_TEMPLATE
static inline void ApplyCoeffsStep(ALuint Offset, ALfloat (*restrict Values)[2],
const ALuint IrSize,
ALfloat (*restrict Coeffs)[2],
const ALfloat (*restrict CoeffStep)[2],
ALfloat left, ALfloat right)
{
ALuint c;
for(c = 0;c < IrSize;c++)
{
const ALuint off = (Offset+c)&HRIR_MASK;
Values[off][0] += Coeffs[c][0] * left;
Values[off][1] += Coeffs[c][1] * right;
Coeffs[c][0] += CoeffStep[c][0];
Coeffs[c][1] += CoeffStep[c][1];
}
}
static inline void ApplyCoeffs(ALuint Offset, ALfloat (*restrict Values)[2],
const ALuint IrSize,
ALfloat (*restrict Coeffs)[2],
ALfloat left, ALfloat right)
{
ALuint c;
for(c = 0;c < IrSize;c++)
{
const ALuint off = (Offset+c)&HRIR_MASK;
Values[off][0] += Coeffs[c][0] * left;
Values[off][1] += Coeffs[c][1] * right;
}
}
#define SUFFIX C
#include "mixer_inc.c"
#undef SUFFIX
void MixDirect_C(DirectParams *params, const ALfloat *restrict data, ALuint srcchan,
ALuint OutPos, ALuint BufferSize)
{
ALfloat (*restrict OutBuffer)[BUFFERSIZE] = params->OutBuffer;
ALuint Counter = maxu(params->Counter, OutPos) - OutPos;
ALfloat DrySend, Step;
ALuint c;
for(c = 0;c < MaxChannels;c++)
{
ALuint pos = 0;
DrySend = params->Mix.Gains.Current[srcchan][c];
Step = params->Mix.Gains.Step[srcchan][c];
if(Step != 1.0f && Counter > 0)
{
for(;pos < BufferSize && pos < Counter;pos++)
{
OutBuffer[c][OutPos+pos] += data[pos]*DrySend;
DrySend *= Step;
}
if(pos == Counter)
DrySend = params->Mix.Gains.Target[srcchan][c];
params->Mix.Gains.Current[srcchan][c] = DrySend;
}
if(!(DrySend > GAIN_SILENCE_THRESHOLD))
continue;
for(;pos < BufferSize;pos++)
OutBuffer[c][OutPos+pos] += data[pos]*DrySend;
}
}
void MixSend_C(SendParams *params, const ALfloat *restrict data,
ALuint OutPos, ALuint BufferSize)
{
ALfloat (*restrict OutBuffer)[BUFFERSIZE] = params->OutBuffer;
ALuint Counter = maxu(params->Counter, OutPos) - OutPos;
ALfloat WetSend, Step;
{
ALuint pos = 0;
WetSend = params->Gain.Current;
Step = params->Gain.Step;
if(Step != 1.0f && Counter > 0)
{
for(;pos < BufferSize && pos < Counter;pos++)
{
OutBuffer[0][OutPos+pos] += data[pos]*WetSend;
WetSend *= Step;
}
if(pos == Counter)
WetSend = params->Gain.Target;
params->Gain.Current = WetSend;
}
if(!(WetSend > GAIN_SILENCE_THRESHOLD))
return;
for(;pos < BufferSize;pos++)
OutBuffer[0][OutPos+pos] += data[pos] * WetSend;
}
}
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