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WDSP: more double precision calculation

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This commit is contained in:
f4exb
2024-07-17 21:19:57 +02:00
parent 3f800dd0a9
commit da7b3fbd41
5 changed files with 179 additions and 44 deletions
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wdsp/shift.cpp
+15 -8
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@@ -38,14 +38,14 @@ void SHIFT::calc_shift (SHIFT *a)
a->sin_delta = sin (a->delta);
}
SHIFT* SHIFT::create_shift (int run, int size, float* in, float* out, int rate, float fshift)
SHIFT* SHIFT::create_shift (int run, int size, float* in, float* out, int rate, double fshift)
{
SHIFT *a = new SHIFT;
a->run = run;
a->size = size;
a->in = in;
a->out = out;
a->rate = (float)rate;
a->rate = (double) rate;
a->shift = fshift;
a->phase = 0.0;
calc_shift (a);
@@ -67,9 +67,10 @@ void SHIFT::xshift (SHIFT *a)
if (a->run)
{
int i;
float I1, Q1, t1, t2;
float cos_phase = cos (a->phase);
float sin_phase = sin (a->phase);
double I1, Q1, t1, t2;
double cos_phase = cos (a->phase);
double sin_phase = sin (a->phase);
for (i = 0; i < a->size; i++)
{
I1 = a->in[2 * i + 0];
@@ -81,12 +82,18 @@ void SHIFT::xshift (SHIFT *a)
cos_phase = t1 * a->cos_delta - t2 * a->sin_delta;
sin_phase = t1 * a->sin_delta + t2 * a->cos_delta;
a->phase += a->delta;
if (a->phase >= TWOPI) a->phase -= TWOPI;
if (a->phase < 0.0 ) a->phase += TWOPI;
if (a->phase >= TWOPI)
a->phase -= TWOPI;
if (a->phase < 0.0 )
a->phase += TWOPI;
}
}
else if (a->in != a->out)
{
std::copy( a->in, a->in + a->size * 2, a->out);
}
}
void SHIFT::setBuffers_shift(SHIFT *a, float* in, float* out)
@@ -119,7 +126,7 @@ void SHIFT::SetShiftRun (RXA& rxa, int run)
rxa.shift.p->run = run;
}
void SHIFT::SetShiftFreq (RXA& rxa, float fshift)
void SHIFT::SetShiftFreq (RXA& rxa, double fshift)
{
rxa.shift.p->shift = fshift;
calc_shift (rxa.shift.p);