diff options
Diffstat (limited to 'OpenAL32/Include')
-rw-r--r-- | OpenAL32/Include/alFilter.h | 19 |
1 files changed, 0 insertions, 19 deletions
diff --git a/OpenAL32/Include/alFilter.h b/OpenAL32/Include/alFilter.h index dc981df7..dd5edbb9 100644 --- a/OpenAL32/Include/alFilter.h +++ b/OpenAL32/Include/alFilter.h @@ -9,25 +9,6 @@ extern "C" { #define LOWPASSFREQREF (5000) -typedef struct { - ALfloat coeff; - ALfloat history[2]; -} FILTER; - -static __inline ALfloat lpFilter2P(FILTER *iir, ALfloat input) -{ - ALfloat *history = iir->history; - ALfloat a = iir->coeff; - ALfloat output = input; - - output = output + (history[0]-output)*a; - history[0] = output; - output = output + (history[1]-output)*a; - history[1] = output; - - return output; -} - /* Calculates the low-pass filter coefficient given the pre-scaled gain and * cos(w) value. Note that g should be pre-scaled (sqr(gain) for one-pole, * sqrt(gain) for four-pole, etc) */ |