[Reverb]
- refactored Diffusor, Delay into separate files
This commit is contained in:
+3
-168
@@ -2,183 +2,18 @@
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#define REVERB_H
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#include <cstdlib>
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#include <delay/buffer_multi.hpp>
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#include <common/mix.hpp>
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#include <initializer_list>
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#include <sys/types.h>
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#include <iostream>
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#include "diffusor.hpp"
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template<typename T, size_t numCh>
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class Delay
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{
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dsp::BufferMulti<T, numCh> m_buf;
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int m_delay_spec[numCh];
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uint m_delaySize;
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void print_delays()
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{
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std::cout << "delays" << std::endl;
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for (int i=0; i < numCh; i++)
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{
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std::cout << m_delay_spec[i] << " ";
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}
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std::cout << std::endl;
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}
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public:
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Delay(uint delayCapacity, int delayOffset)
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: m_buf(delayCapacity)
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{
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setDelay(delayCapacity, delayOffset);
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}
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void setDelay(uint delaySize, int delayOffset)
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{
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float delayRagePerWindow = (float)(delaySize-delayOffset)/(float)numCh;
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if (delayRagePerWindow < 0)
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{
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return;
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}
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// Delay spec
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for (int i=0; i < numCh; i++)
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{
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float base_delay = i*delayRagePerWindow + delayOffset;
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float z = (float)rand()/(float)RAND_MAX;
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int delay = (int)(base_delay + z*delayRagePerWindow);
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m_delay_spec[i] = -delay;
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}
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m_delaySize = delaySize;
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print_delays();
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}
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uint getDelay()
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{
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return m_delaySize;
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}
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void process(T in, T out[numCh])
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{
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m_buf = in;
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m_buf.quer(out, m_delay_spec);
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++m_buf;
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}
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void process(T data[numCh])
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{
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m_buf = data;
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m_buf.quer(data, m_delay_spec);
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++m_buf;
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}
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void process(T in[numCh], T out[numCh])
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{
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m_buf = in;
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m_buf.quer(out, m_delay_spec);
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++m_buf;
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}
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};
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template<typename T, size_t numCh>
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class Diffusor
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{
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Delay<T, numCh> m_dly;
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int m_shuffle_spec[numCh];
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void print_shuffle()
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{
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std::cout << "shuffle" << std::endl;
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for (int i=0; i < numCh; i++)
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{
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std::cout << m_shuffle_spec[i] << " ";
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}
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std::cout << std::endl;
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}
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void shuffle_init(double pn)
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{
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// Shuffle spec
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for (int i=0; i < numCh; i++)
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{
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m_shuffle_spec[i] = i;
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}
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// Shuffle values
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for (int i=0; i < 2*numCh; i++)
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{
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int i1 = rand() & (numCh-1);
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int i2 = rand() & (numCh-1);
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int temp = m_shuffle_spec[i1];
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m_shuffle_spec[i1] = m_shuffle_spec[i2];
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m_shuffle_spec[i2] = temp;
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}
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// Shuffle signs
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for (int i=0; i < numCh; i++)
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{
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double z = (double)rand()/(double)RAND_MAX;
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if (z < pn)
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{
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m_shuffle_spec[i] *= (T)-1;
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}
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}
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print_shuffle();
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}
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public:
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Diffusor(uint maxDelaySize, double pn=0.5)
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: m_dly(maxDelaySize, 0)
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{
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shuffle_init(pn);
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}
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void setDelay(uint delay)
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{
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m_dly.setDelay(delay, 0);
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}
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uint getDelay()
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{
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return m_dly.getDelay();
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}
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inline T process(T in)
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{
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T temp[numCh];
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m_dly.process(in, temp);
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Shuffle<T, numCh>::inPlace(temp, m_shuffle_spec);
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Hadamard<T, numCh>::inPlace(temp);
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Householder<T, numCh>::inPlace(temp);
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return temp[0];
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}
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// In-place
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inline void process_multi(T in_out[numCh])
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{
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m_dly.process(in_out);
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Shuffle<T, numCh>::inPlace(in_out, m_shuffle_spec);
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Hadamard<T, numCh>::inPlace(in_out);
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}
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// Out-of-place
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inline void process_multi(T in[numCh], T out[numCh])
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{
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m_dly.process(in, out);
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Shuffle<T, numCh>::outOfPlace(in, out, m_shuffle_spec);
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Hadamard<T, numCh>::inPlace(out);
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}
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};
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template<typename T, uint numCh>
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class Reverb
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{
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std::vector<Diffusor<T, numCh>> m_diffusors;
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Delay<T, numCh> m_feedbackDly;
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MultiDelay<T, numCh> m_feedbackDly;
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T fb_dly_out[numCh];
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T fb_gain;
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