diff options
Diffstat (limited to 'plugins/LV2/src/Biquad/Biquad.h')
-rw-r--r-- | plugins/LV2/src/Biquad/Biquad.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/plugins/LV2/src/Biquad/Biquad.h b/plugins/LV2/src/Biquad/Biquad.h new file mode 100644 index 0000000..adaa121 --- /dev/null +++ b/plugins/LV2/src/Biquad/Biquad.h @@ -0,0 +1,40 @@ +#ifndef __Biquad_H +#define __Biquad_H + +#include <lv2plugin.h> + +class Biquad : public LV2Plugin<4> { +public: + Biquad(double rate); + + void activate(); + void run(uint32_t num_samples); + + static constexpr const char * URI = "https://www.airwindows.com/biquad"; + +private: + /* + * These are the original DSP functions from the VST plugin. + * They need to be called from the LV2 plugins `run` function. + */ + void processReplacing(float **in, float **out, VstInt32 samples); + void processDoubleReplacing(double **in, double **out, VstInt32 samples); + + /* + * Members needed by the processing functions. + */ + + long double biquad[11]; //note that this stereo form doesn't require L and R forms! + //This is because so much of it is coefficients etc. that are the same on both channels. + //So the stored samples are in 7-8 and 9-10, and freq/res/coefficients serve both. + + uint32_t fpd; + //default stuff + + float A; + float B; + float C; + float D; +}; + +#endif |