Everything is a buffer

delay/buffer_multi_view.hpp

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+/* 
+ * 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_view.hpp
+ * Author Jens Ahrensfeld on 26.10.2025.
+ */
+
+#ifndef DSP_BUFFER_VIEW_H
+#define DSP_BUFFER_VIEW_H
+
+#include "buffer_multi.hpp"
+
+
+namespace dsp {
+
+template <typename T>
+class BufferMultiView
+{
+	BufferMulti<T> &m_buffer;
+	uint m_offset;
+	uint m_channel;
+
+	public:
+	BufferMultiView(BufferMulti<T> &buffer, int offset, int channel)
+	: m_buffer(buffer)
+	, m_offset(offset)
+	, m_channel(channel)
+	{
+	}
+
+	T & operator[](int offset)
+	{
+		return m_buffer.at(m_channel, m_offset + offset);
+	}
+
+	const T & operator[](int offset) const
+	{
+		return m_buffer[m_offset + offset];
+	}
+
+	size_t size()
+	{
+		return m_buffer.size();
+	}
+
+	typedef std::vector<T>::iterator iterator;
+	typedef std::vector<T>::const_iterator const_iterator;
+	iterator begin()
+	{
+		return m_buffer.begin();
+	}
+
+	iterator end()
+	{
+		return m_buffer.end();
+	}
+
+	const_iterator begin() const
+	{
+		return m_buffer.begin();
+	}
+
+	const_iterator end() const
+	{
+		return m_buffer.end();
+	}
+
+};
+}
+
+#endif // DSP_BUFFER_VIEW_H