static ALvoid ModulatorProcess( ALeffectState* effect, const ALeffectslot* Slot, ALuint SamplesToDo, const ALfloat* SamplesIn, ALfloat ( *SamplesOut )[OUTPUTCHANNELS] )
{
ALmodulatorState* state = ( ALmodulatorState* )effect;
const ALfloat gain = Slot->Gain * state->Scale;
const ALuint step = state->step;
ALuint index = state->index;
ALfloat samp;
ALuint i;
switch ( state->Waveform )
{
case SINUSOID:
for ( i = 0; i < SamplesToDo; i++ )
{
#define FILTER_OUT(func) do { \
samp = SamplesIn[i]; \
\
index += step; \
index &= WAVEFORM_FRACMASK; \
samp *= func(index); \
\
samp = hpFilter1P(&state->iirFilter, 0, samp); \
\
/* Apply slot gain */ \
samp *= gain; \
\
SamplesOut[i][FRONT_LEFT] += samp; \
SamplesOut[i][FRONT_RIGHT] += samp; \
SamplesOut[i][FRONT_CENTER] += samp; \
SamplesOut[i][SIDE_LEFT] += samp; \
SamplesOut[i][SIDE_RIGHT] += samp; \
SamplesOut[i][BACK_LEFT] += samp; \
SamplesOut[i][BACK_RIGHT] += samp; \
SamplesOut[i][BACK_CENTER] += samp; \
} while(0)
FILTER_OUT( sin_func );
}
break;
case SAWTOOTH:
for ( i = 0; i < SamplesToDo; i++ )
{
FILTER_OUT( saw_func );
}
break;
case SQUARE:
for ( i = 0; i < SamplesToDo; i++ )
{
FILTER_OUT( square_func );
#undef FILTER_OUT
}
break;
}
state->index = index;
}
/* callback for dtrace iterator. optionally filters then dumps probe info */
static int
probeinfo(dtrace_hdl_t *dh, const dtrace_probedesc_t *desc, void *ud)
{
probefilter_t *filter = ud;
/* filter out (duplicated per) pid probes by default */
if (!(filter->pidprobes)) {
const char *provider = desc->dtpd_provider;
int c = provider[strlen(provider) - 1];
if (isdigit(c))
return 0;
}
#define FILTER_OUT(F, V) (F && fnmatch(F, V, 0))
if (FILTER_OUT(filter->provider, desc->dtpd_provider)
||FILTER_OUT(filter->mod, desc->dtpd_mod)
||FILTER_OUT(filter->func, desc->dtpd_func)
||FILTER_OUT(filter->name, desc->dtpd_name)
) return 0;
printf("%s\t%s\t%s\t%s\n",
desc->dtpd_provider,
desc->dtpd_mod,
desc->dtpd_func,
desc->dtpd_name);
(void)dh; // silence warnings - we don't use this
return 0;
}
