/* * BAAudioEffectDelayExternal.h * * Created on: Nov 5, 2017 * Author: slascos */ #ifndef __BAGUITAR_BAAUDIOEFFECTDELAYEXTERNAL_H #define __BAGUITAR_BAAUDIOEFFECTDELAYEXTERNAL_H #include <Audio.h> namespace BAGuitar { #include "Arduino.h" #include "AudioStream.h" #include "spi_interrupt.h" enum MemSelect { MEM0, MEM1, }; class BAAudioEffectDelayExternal : public AudioStream { public: BAAudioEffectDelayExternal(); BAAudioEffectDelayExternal(MemSelect type, float milliseconds=1e6); void delay(uint8_t channel, float milliseconds); void disable(uint8_t channel); virtual void update(void); private: void initialize(MemSelect mem, uint32_t samples); void read(uint32_t address, uint32_t count, int16_t *data); void write(uint32_t address, uint32_t count, const int16_t *data); void zero(uint32_t address, uint32_t count); uint32_t memory_begin; // the first address in the memory we're using uint32_t memory_length; // the amount of memory we're using uint32_t head_offset; // head index (incoming) data into external memory uint32_t delay_length[8]; // # of sample delay for each channel (128 = no delay) uint8_t activemask; // which output channels are active //uint8_t memory_type; // 0=23LC1024, 1=Frank's Memoryboard static uint32_t allocated[2]; audio_block_t *inputQueueArray[1]; MemSelect m_mem; int m_misoPin; int m_mosiPin; int m_sckPin; int m_csPin; }; } /* namespace BAGuitar */ #endif /* __BAGUITAR_BAAUDIOEFFECTDELAYEXTERNAL_H */