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Diffstat (limited to 'src/engine/AudioBuffer.hpp')
-rw-r--r-- | src/engine/AudioBuffer.hpp | 109 |
1 files changed, 0 insertions, 109 deletions
diff --git a/src/engine/AudioBuffer.hpp b/src/engine/AudioBuffer.hpp deleted file mode 100644 index d0c562a9..00000000 --- a/src/engine/AudioBuffer.hpp +++ /dev/null @@ -1,109 +0,0 @@ -/* This file is part of Ingen. - * Copyright 2007-2011 David 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 INGEN_ENGINE_AUDIOBUFFER_HPP -#define INGEN_ENGINE_AUDIOBUFFER_HPP - -#include <cstddef> -#include <cassert> -#include <boost/utility.hpp> -#include "types.hpp" -#include "ObjectBuffer.hpp" -#include "Context.hpp" - -using namespace std; - -namespace Ingen { -namespace Engine { - -class AudioBuffer : public ObjectBuffer -{ -public: - AudioBuffer(BufferFactory& bufs, PortType type, size_t capacity); - - void clear(); - - void set_value(Sample val, FrameTime cycle_start, FrameTime time); - void set_block(Sample val, size_t start_offset, size_t end_offset); - void copy(const Sample* src, size_t start_sample, size_t end_sample); - void copy(Context& context, const Buffer* src); - void accumulate(Context& context, const AudioBuffer* src); - - inline bool is_control() const { return _type.symbol() == PortType::CONTROL; } - - inline Sample* data() const { - return (is_control()) - ? (Sample*)atom()->body - : (Sample*)(atom()->body + sizeof(LV2_Atom_Vector)); - } - - inline SampleCount nframes() const { - return (is_control()) - ? 1 - : (_size - sizeof(LV2_Atom) - sizeof(LV2_Atom_Vector)) / sizeof(Sample); - } - - inline Sample& value_at(size_t offset) const - { assert(offset < nframes()); return data()[offset]; } - - void prepare_read(Context& context); - void prepare_write(Context& context) {} - - void resize(size_t size); - -private: - enum State { OK, HALF_SET_CYCLE_1, HALF_SET_CYCLE_2 }; - - LV2_Atom_Vector* vector() { return(LV2_Atom_Vector*)atom()->body; } - - State _state; ///< State of buffer for setting values next cycle - Sample _set_value; ///< Value set by set_value (for completing the set next cycle) - FrameTime _set_time; ///< Time _set_value was set (to reset next cycle) -}; - -/** Accumulate a block of @a src into buffer. - */ -inline void -AudioBuffer::accumulate(Context& context, const AudioBuffer* const src) -{ - Sample* const buf = data(); - const Sample* const src_buf = src->data(); - - if (is_control()) { - if (src->is_control()) { // control => control - buf[0] += src_buf[0]; - } else { // audio => control - buf[0] += src_buf[context.offset()]; - } - } else { - const SampleCount end = context.offset() + context.nframes(); - if (src->is_control()) { // control => audio - for (SampleCount i = context.offset(); i < end; ++i) { - buf[i] += src_buf[0]; - } - } else { // audio => audio - for (SampleCount i = context.offset(); i < end; ++i) { - buf[i] += src_buf[i]; - } - } - } -} - -} // namespace Engine -} // namespace Ingen - -#endif // INGEN_ENGINE_AUDIOBUFFER_HPP |