1 files changed, 76 insertions, 0 deletions
diff --git a/src/engine/Buffer.hpp b/src/engine/Buffer.hpp
new file mode 100644
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--- /dev/null
+++ b/src/engine/Buffer.hpp
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+/* This file is part of Ingen.
+ * Copyright (C) 2007 Dave Robillard <http://drobilla.net>
+ * 
+ * Ingen is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 2 of the License, or (at your option) any later
+ * version.
+ * 
+ * Ingen is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for details.
+ * 
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef BUFFER_H
+#define BUFFER_H
+
+#include <cstddef>
+#include <cassert>
+#include <boost/utility.hpp>
+#include <raul/Deletable.hpp>
+#include "types.hpp"
+#include "interface/DataType.hpp"
+
+namespace Ingen {
+
+	
+class Buffer : public boost::noncopyable, public Raul::Deletable
+{
+public:
+	Buffer(Shared::DataType type, size_t size)
+		: _type(type)
+		, _size(size)
+		, _joined_buf(NULL)
+	{}
+	
+	static Buffer* create(Shared::DataType type, size_t size);
+
+	/** Clear contents and reset state */
+	virtual void clear() = 0;
+	
+	virtual void*       raw_data()       = 0;
+	virtual const void* raw_data() const = 0;
+
+	/** Rewind (ie reset read pointer), but leave contents unchanged */
+	virtual void rewind() const = 0;
+
+	virtual void prepare_read(FrameTime start, SampleCount nframes) = 0;
+	virtual void prepare_write(FrameTime start, SampleCount nframes) = 0;
+	
+	bool is_joined() const { return (_joined_buf != NULL); }
+	Buffer* joined_buffer() const { return _joined_buf; }
+	
+	virtual bool join(Buffer* buf) = 0;
+	virtual void unjoin() = 0;
+	
+	virtual void copy(const Buffer* src, size_t start_sample, size_t end_sample) = 0;
+
+	virtual void resize(size_t size) { _size = size; }
+
+	Shared::DataType type() const { return _type; }
+	size_t           size() const { return _size; }
+
+protected:
+	Shared::DataType _type;
+	size_t           _size;
+	Buffer*          _joined_buf;
+};
+
+
+} // namespace Ingen
+
+#endif // BUFFER_H