void Biquad4proc::setCoefficients(double a0, double a1, double a2, double b0, double b1, double b2)
{
int64_t A1 = -toFixedPoint(a1/a0);
int64_t A2 = -toFixedPoint(a2/a0);
int64_t B0 = toFixedPoint(b0/a0);
int64_t B1 = toFixedPoint(b1/a0);
int64_t B2 = toFixedPoint(b2/a0);
mA1 = A1;
mA2 = A2;
mB0 = B0;
mB1 = B1;
mB2 = B2;
}
void Biquad::setCoefficients(int32_t steps, double a0, double a1, double a2, double b0, double b1, double b2)
{
int64_t A1 = -toFixedPoint(a1/a0);
int64_t A2 = -toFixedPoint(a2/a0);
int64_t B0 = toFixedPoint(b0/a0);
int64_t B1 = toFixedPoint(b1/a0);
int64_t B2 = toFixedPoint(b2/a0);
if (steps == 0) {
mA1 = A1;
mA2 = A2;
mB0 = B0;
mB1 = B1;
mB2 = B2;
mInterpolationSteps = 0;
} else {
mA1dif = (A1 - mA1) / steps;
mA2dif = (A2 - mA2) / steps;
mB0dif = (B0 - mB0) / steps;
mB1dif = (B1 - mB1) / steps;
mB2dif = (B2 - mB2) / steps;
mInterpolationSteps = steps;
}
}