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Diffstat (limited to 'src/engine/Buffer.hpp')
-rw-r--r-- | src/engine/Buffer.hpp | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/src/engine/Buffer.hpp b/src/engine/Buffer.hpp new file mode 100644 index 00000000..e388e2e8 --- /dev/null +++ b/src/engine/Buffer.hpp @@ -0,0 +1,76 @@ +/* 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 |