642b4973ca
Made it possible to select type and number of oscillators to compile (via preprocessor). Made Examples folder to library where tutorials will go in.
189 lines
4.6 KiB
C++
189 lines
4.6 KiB
C++
/*
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Music.h - Music library
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Copyright (c) 2012 Copenhagen Institute of Interaction Design.
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All right reserved.
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This library is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser Public License for more details.
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You should have received a copy of the GNU Lesser Public License
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along with Foobar. If not, see <http://www.gnu.org/licenses/>.
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+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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+ author: Jakob Bak
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+ contact: j.bak@ciid.dk
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*/
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#ifndef Music_h // include guard
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#define Music_h
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// current sample rate is 15625 as defined in the init() section
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#define SAMPLE_RATE 15625
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#define NUM_OSCILLATORS 1
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#ifndef NUM_OSCILLATORS
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#error NUM_OSCILLATORS should be defined in the Music.h file in the libraries folder.
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#elif (NUM_OSCILLATORS == 1)||(NUM_OSCILLATORS == 2)||(NUM_OSCILLATORS == 3)
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#else
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#error NUM_OSCILLATORS shall be 1, 2 or 3
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#endif
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// Maximum possible value for amplification envelope
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#define MAX_ENV_GAIN 65535
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#include "Arduino.h"
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#include <avr/interrupt.h>
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#include <avr/pgmspace.h>
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#include <hardwareSerial.h>
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class MMusic {
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public:
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// INITIALIZER
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void init();
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// AUDIO INTERRUPT SERVICE ROUTINE
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void synthInterrupt8bit();
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void synthInterrupt12bitSine();
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// FREQUENCY AND DETUNE FUNCTIONS
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void setFrequency(float frequency);
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void setFrequency1(float frequency1);
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void setFrequency2(float frequency2);
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void setFrequency3(float frequency3);
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void setSemitone1(int8_t semi);
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void setSemitone2(int8_t semi);
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void setSemitone3(int8_t semi);
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void setDetune(float detune);
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void setDetune1(float detune);
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void setDetune2(float detune);
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void setDetune3(float detune);
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void pitchBend(float b);
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// WAVEFORM FUNCTIONS
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void setWaveform(uint16_t waveForm);
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void setWaveform1(uint16_t waveForm);
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void setWaveform2(uint16_t waveForm);
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void setWaveform3(uint16_t waveForm);
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// GAIN FUNCTIONS
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void setGainFloat(float value); // 0.0 - 1.0
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void setGain16bit(uint16_t value); // 0 - 65535
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void setGain(uint16_t value); // 0 - 65535
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void setGain(float value); // 0.0 - 1.0
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void setGain1(uint16_t value); // 0 - 65535
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void setGain2(uint16_t value); // 0 - 65535
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void setGain3(uint16_t value); // 0 - 65535
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void setGain1(float value); // 0.0 - 1.0
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void setGain2(float value); // 0.0 - 1.0
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void setGain3(float value); // 0.0 - 1.0
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float getGainFloat();
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uint16_t getGain();
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// NOTE FUNCTIONS
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void noteOn(uint8_t note, uint8_t vel); // 0 - 255
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void noteOn(uint8_t note); // 0 - 255
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void noteOff(uint8_t note); // 0 - 255
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void noteOff();
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uint16_t getNoteFrequency(uint8_t note); // 0 - 127
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// ENVELOPE FUNCTIONS
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void enableEnvelope();
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void disableEnvelope();
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void setEnvStage(uint8_t stage); // 0 - 4
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void setAttack16bit(uint16_t att); // 0 - 65535
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void setDecay16bit(uint16_t dec); // 0 - 65535
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void setSustain16bit(uint16_t sus); // 0 - 65535
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void setRelease16bit(uint16_t rel); // 0 - 65535
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void setAttack(uint8_t att); // 0 - 127
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void setDecay(uint8_t dec); // 0 - 127
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void setSustain(uint8_t sus); // 0 - 127
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void setRelease(uint8_t rel); // 0 - 127
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void setVelSustain(uint8_t vel); // 0 - 127
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void setVelPeak(uint8_t vel); // 0 - 127
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private:
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// WAVEFORM VARIABLES
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uint16_t waveForm1;
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uint16_t waveForm2;
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uint16_t waveForm3;
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uint16_t waveForm;
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bool sine;
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bool saw;
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bool square;
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// FREQUENCY VARIABLES
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uint16_t period1;
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uint16_t period2;
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uint16_t period3;
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uint16_t frequency16bit;
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float frequency;
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float frequency1;
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float frequency2;
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float frequency3;
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float semi1;
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float semi2;
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float semi3;
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float detune1;
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float detune2;
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float detune3;
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float bend;
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// OSCILLATOR VARIABLES
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uint16_t accumulator1;
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uint16_t accumulator2;
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uint16_t accumulator3;
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uint16_t index1;
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uint16_t index2;
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uint16_t index3;
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uint32_t oscil1;
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uint32_t oscil2;
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uint32_t oscil3;
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uint16_t gain;
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uint16_t gain1;
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uint16_t gain2;
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uint16_t gain3;
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// ENVELOPE VARIABLES
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bool envelopeOn;
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uint32_t env;
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uint8_t envStage;
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uint16_t attack;
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uint16_t decay;
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uint16_t sustain;
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uint16_t release;
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uint16_t velSustain;
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uint16_t velPeak;
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// NOTE VARIABLE
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uint8_t notePlayed;
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// final sample that goes to the DAC
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uint32_t sample;
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// the two bytes that go to the DAC over SPI
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uint8_t dacSPI0;
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uint8_t dacSPI1;
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};
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extern MMusic Music;
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#endif // close guard
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