dsp/delay/buffer_multi.hpp

/* 
 * jayDSP, A cross-platform Digital Signal Processing library written in modern C++.
 * Copyright (C) 2025 Jens Ahrensfeld, All rights reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of
 * this software and associated documentation files (the "Software"), to deal in
 * the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 * the Software, and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all 
 * copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 * FOR A PARTICULAR PURPOSE AND NON INFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

 * File: buffer_multi.hpp
 * Author Jens Ahrensfeld on 26.10.2025.
 */

#ifndef DSP_BUFFER_MULTI_H
#define DSP_BUFFER_MULTI_H

#include "buffer.hpp"
#include <array>

namespace dsp {

template <typename T, uint numCh>
class BufferMulti
{
	Buffer<T> *m_buffer;
	size_t m_capacity;

	public:
	BufferMulti(size_t capacity)
	: m_buffer(new Buffer<T>[numCh])
	, m_capacity(capacity)
	{
		for (int c=0; c < numCh; c++)
		{
			m_buffer[c].resize(capacity);
		}
	}

	Buffer<T> & buffer()
	{
		return m_buffer;
	}

	void reset()
	{
		for (int c=0; c < numCh; c++)
		{
			m_buffer[c].reset();
		}
	}

	size_t capacity()
	{
		return m_capacity;
	}

	size_t numChannels()
	{
		return numCh;
	}

	Buffer<T> operator[](uint channel)
	{
		return at(channel);
	}

	const Buffer<T> operator [](uint channel) const
	{
		return at(channel);
	}

	BufferMulti & operator ++() 
	{
		for (int c=0; c < numCh; c++)
		{
			++(m_buffer[c]);
		}
		return *this;
	}

	BufferMulti & operator +=(int i) 
	{
		for (int c=0; c < numCh; c++)
		{
			m_buffer[c] += i;
		}
		return *this;
	}

	BufferMulti & operator --() 
	{
		for (int c=0; c < numCh; c++)
		{
			--(m_buffer[c]);
		}
		return *this;
	}

	BufferMulti & operator -=(int i) 
	{
		for (int c=0; c < numCh; c++)
		{
			m_buffer[c] -= i;
		}
		return *this;
	}

	BufferMulti & operator =(const T& value) 
	{
		for (uint c=0; c < numCh; c++)
		{
			m_buffer[c][0] = value;
		}
		return *this;
	}

	BufferMulti & operator =(T data[numCh]) 
	{
		for (uint c=0; c < numCh; c++)
		{
			m_buffer[c][0] = data[c];
		}
		return *this;
	}

	void quer(T *out, int offset=0) const
	{
		for (int c=0; c < numCh; c++)
		{
			out[c] = m_buffer[c][offset];
		}
	}

	void quer(T *out, const int offsets[numCh]) const
	{
		for (int c=0; c < numCh; c++)
		{
			out[c] = m_buffer[c][offsets[c]];
		}
	}
	
	Buffer<T> at(uint channel)
	{
		return m_buffer[channel];
	}

	const Buffer<T> at(uint channel) const
	{
		return m_buffer[channel];
	}

protected:


};
}

#endif // DSP_BUFFER_MULTI_H