From e96c36c1a7abb062e36efc0ac95c35fedcef922e Mon Sep 17 00:00:00 2001 From: David Robillard Date: Sun, 8 Apr 2007 06:04:32 +0000 Subject: De-template-ification of port types (req. for LV2 MIDI, but nice code size reduction). LV2 MIDI patching support (LV2 style MIDI throughout, inc. internal plugins). git-svn-id: http://svn.drobilla.net/lad/ingen@415 a436a847-0d15-0410-975c-d299462d15a1 --- src/libs/engine/AudioBuffer.h | 82 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 82 insertions(+) create mode 100644 src/libs/engine/AudioBuffer.h (limited to 'src/libs/engine/AudioBuffer.h') diff --git a/src/libs/engine/AudioBuffer.h b/src/libs/engine/AudioBuffer.h new file mode 100644 index 00000000..fa946108 --- /dev/null +++ b/src/libs/engine/AudioBuffer.h @@ -0,0 +1,82 @@ +/* This file is part of Ingen. + * Copyright (C) 2007 Dave Robillard + * + * 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 AUDIOBUFFER_H +#define AUDIOBUFFER_H + +#include +#include +#include +#include "types.h" +#include "Buffer.h" + +namespace Ingen { + + +class AudioBuffer : public Buffer +{ +public: + AudioBuffer(size_t capacity); + + void clear(); + void set(Sample val, size_t start_sample); + void set(Sample val, size_t start_sample, size_t end_sample); + void scale(Sample val, size_t start_sample, size_t end_sample); + void copy(const AudioBuffer* src, size_t start_sample, size_t end_sample); + void accumulate(const AudioBuffer* src, size_t start_sample, size_t end_sample); + + bool join(Buffer* buf); + void unjoin(); + bool is_joined_to(Buffer* buf) const; + + /** For driver use only!! */ + void set_data(Sample* data); + + inline Sample* data() const + { return ((_joined_buf != NULL) ? _joined_buf->data() : _data); } + + inline Sample& value_at(size_t offset) const + { assert(offset < _size); return data()[offset]; } + + void prepare(SampleCount nframes); + + void filled_size(size_t size) { _filled_size = size; } + size_t filled_size() const { return _filled_size; } + bool is_joined() const { return (_joined_buf == NULL); } + size_t size() const { return _size; } + + void resize(size_t size); + +private: + enum State { OK, HALF_SET_CYCLE_1, HALF_SET_CYCLE_2 }; + + void allocate(); + void deallocate(); + + Sample* _data; ///< Used data pointer (probably same as _local_data) + Sample* _local_data; ///< Locally allocated buffer (possibly unused if joined or set_data used) + AudioBuffer* _joined_buf; ///< Buffer to mirror, if joined + size_t _size; ///< Allocated buffer size + size_t _filled_size; ///< Usable buffer size (for MIDI ports etc) + State _state; ///< State of buffer for setting values next cycle + Sample _set_value; ///< Value set by @ref set (may need to be set next cycle) +}; + + +} // namespace Ingen + +#endif // AUDIOBUFFER_H -- cgit v1.2.1