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John Alanbrook
2022-07-10 02:46:23 +00:00
parent 7299d6d96f
commit b953ae2f1d
7 changed files with 240 additions and 113 deletions
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17
source/engine/dsp.h
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@@ -14,19 +14,12 @@ void dsp_rectify(short *in, short *out, int n);
struct dsp_filter {
void (*filter)(void *data, short *out, int samples);
void *data;
};
struct dsp_iir {
float freq;
int poles;
int n; // Amount of constants
int order; // How many times it's applied
float *ccof;
float *dcof;
float *dx;
float *dy;
int inputs;
struct dsp_filter *in[6];
struct dsp_filter in;
short cache[CHANNELS*SAMPLERATE];
int dirty;
};
struct dsp_fir {
@@ -39,6 +32,8 @@ struct dsp_fir {
struct dsp_filter in;
};
void dsp_filter_addin(struct dsp_filter filter, struct dsp_filter in);
struct dsp_filter lp_fir_make(float freq);
void dsp_iir_fillbuf(struct dsp_iir *iir, short *out, int n);