57 lines
1.5 KiB
C++
57 lines
1.5 KiB
C++
/*
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* Copyright (C) 2020 Robin Gareus <robin@gareus.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <string.h>
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#include "pbd/failed_constructor.h"
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#include "ardour/audiorom.h"
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using namespace ARDOUR;
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AudioRom::AudioRom (Sample* rom, size_t size)
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: _size (size)
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{
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_rom = (Sample*) malloc (sizeof (Sample) * _size);
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if (!_rom) {
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throw failed_constructor ();
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}
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memcpy (_rom, rom, sizeof (Sample) * _size);
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}
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boost::shared_ptr<AudioRom>
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AudioRom::new_rom (Sample* rom, size_t size)
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{
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return boost::shared_ptr<AudioRom> (new AudioRom (rom, size));
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}
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AudioRom::~AudioRom ()
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{
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free (_rom);
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}
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samplecnt_t
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AudioRom::read (Sample* dst, samplepos_t pos, samplecnt_t cnt, int channel) const
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{
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if (channel != 0 || pos >= _size) {
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return 0;
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}
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samplecnt_t to_copy = std::min (cnt, _size - pos);
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memcpy (dst, &_rom[pos], sizeof (Sample) * _size);
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return to_copy;
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}
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