95 lines
2.0 KiB
C++
95 lines
2.0 KiB
C++
#include <stdio.h>
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#include <string.h>
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#include "util.hpp"
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#include "Param.hpp"
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#include "Crap.hpp"
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#include "Buffer2.hpp"
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#include "biquad.hpp"
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struct Crap_eq
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:public AdjustAll<Buffer2<Crap>> {
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static constexpr ulong id = 0x000CAFED;
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static constexpr char label[] = "crap_eq";
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static constexpr char name[] = "crap Parametric Equalizer";
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static constexpr char author[] = "Connor Olding";
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static constexpr char copyright[] = "MIT";
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static constexpr ulong bands = 4;
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static constexpr ulong parameters = bands*3;
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biquad filters_L[bands];
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biquad filters_R[bands];
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inline void
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process2(v2df *buf, ulong rem)
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{
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biquad *f0, *f1;
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f0 = filters_L;
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f1 = filters_R;
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for (ulong i = 0; i < bands; i++) {
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biquad_run_block_stereo(f0, f1, buf, rem);
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f0++;
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f1++;
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}
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}
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inline void
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pause()
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{}
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inline void
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resume()
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{
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for (int i = 0; i < bands; i++) {
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biquad_init(&filters_L[i]);
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biquad_init(&filters_R[i]);
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}
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}
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static inline void
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construct_params(Param *params)
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{
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for (int i = 0; i < bands; i++) {
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sprintf(params[0].name, "Band %i Frequency", i + 1);
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params[0].min = 20;
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params[0].max = 20000;
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params[0].scale = SCALE_HZ;
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params[0].def = DEFAULT_440;
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params[0].reset();
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sprintf(params[1].name, "Band %i Gain", i + 1);
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params[1].min = -18;
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params[1].max = 18;
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params[1].scale = SCALE_DB;
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params[1].def = DEFAULT_0;
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params[1].reset();
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sprintf(params[2].name, "Band %i Bandwidth", i + 1);
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params[2].min = 0.0625; // 2^-4 could probably be 2^-3
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params[2].max = 8; // 2^3 could probably be 2^2
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params[2].scale = SCALE_FLOAT;
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params[2].def = DEFAULT_1;
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params[2].reset();
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params += 3;
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}
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}
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inline void
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adjust_all(Param *params)
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{
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for (int i = 0; i < bands; i++) {
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filters_L[i] = biquad_gen(FILT_PEAKING,
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params[0].value, params[1].value, params[2].value, (double) fs);
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params += 3;
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filters_R[i] = filters_L[i];
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}
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}
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};
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constexpr char Crap_eq::label[];
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constexpr char Crap_eq::name[];
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constexpr char Crap_eq::author[];
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constexpr char Crap_eq::copyright[];
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