ShiftRegisterDriver.h

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// SPDX-License-Identifier: AGPL-3.0-only
// Copyright (c) 2026 Douglas Quigg (dstroy0) <dquigg123@gmail.com>
// https://github.com/dstroy0/XPoint
 
#ifndef SHIFT_REGISTER_DRIVER_H
#define SHIFT_REGISTER_DRIVER_H
 
#include "XPointDriver.h"
#include <stdint.h>
 
class ShiftRegisterDriver : public XPointDriver
{
  public:
    typedef uint16_t (*MapFn)(uint8_t r, uint8_t c);
 
    ShiftRegisterDriver(uint16_t nOut, MapFn map);
 
    ~ShiftRegisterDriver();
 
    void begin() override;
 
    void setNodeHardware(uint8_t r, uint8_t c, bool state) override;
 
    void commitPhysicalUpdates() override;
 
    uint8_t byteAt(uint16_t idx) const;
 
    uint16_t byteCount() const
    {
        return _nBytes;
    }
 
  private:
    uint16_t _nOut;   
    MapFn _map;       
    uint16_t _nBytes; 
    uint8_t *_buf;    
};
 
#endif // SHIFT_REGISTER_DRIVER_H