diff options
Diffstat (limited to 'utils')
| -rw-r--r-- | utils/makehrtf.c | 28 |
1 files changed, 12 insertions, 16 deletions
diff --git a/utils/makehrtf.c b/utils/makehrtf.c index 34626b20..c7f5d4ad 100644 --- a/utils/makehrtf.c +++ b/utils/makehrtf.c @@ -343,6 +343,14 @@ static Complex c_mul(Complex a, Complex b) return r; } +static Complex c_muls(Complex a, double s) +{ + Complex r; + r.Real = a.Real * s; + r.Imag = a.Imag * s; + return r; +} + static double c_abs(Complex a) { return sqrt(a.Real*a.Real + a.Imag*a.Imag); @@ -1009,10 +1017,7 @@ static void FftInverse(const uint n, const Complex *in, Complex *out) FftSummation(n, -1.0, out); f = 1.0 / n; for(i = 0;i < n;i++) - { - out[i].Real *= f; - out[i].Imag *= f; - } + out[i] = c_muls(out[i], f); } /* Calculate the complex helical sequence (or discrete-time analytical signal) @@ -1034,24 +1039,15 @@ static void Hilbert(const uint n, const Complex *in, Complex *out) { // Handle copy operation. for(i = 0;i < n;i++) - { - out[i].Real = in[i].Real; - out[i].Imag = 0.0; - } + out[i] = MakeComplex(in[i].Real, 0.0); } FftInverse(n, out, out); for(i = 1;i < (n+1)/2;i++) - { - out[i].Real *= 2.0; - out[i].Imag *= 2.0; - } + out[i] = c_muls(out[i], 2.0); /* Increment i if n is even. */ i += (n&1)^1; for(;i < n;i++) - { - out[i].Real = 0.0; - out[i].Imag = 0.0; - } + out[i] = MakeComplex(0.0, 0.0); FftForward(n, out, out); } |