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livetrax/libs/ardour/audiorom.cc
Paul Davis b35518e212 switch from boost::{shared,weak}_ptr to std::{shared,weak}_ptr
This is mostly a simple lexical search+replace but the absence of operator< for
std::weak_ptr<T> leads to some complications, particularly with Evoral::Sequence
and ExportPortChannel.
2023-03-24 14:19:15 -06:00

58 lines
1.5 KiB
C++

/*
* Copyright (C) 2020 Robin Gareus <robin@gareus.org>
*
* This program 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.
*
* This program 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 more 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 Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <string.h>
#include "pbd/failed_constructor.h"
#include "ardour/audiorom.h"
#include "ardour/runtime_functions.h"
using namespace ARDOUR;
AudioRom::AudioRom (Sample* rom, size_t size)
: _size (size)
{
_rom = (Sample*) malloc (sizeof (Sample) * _size);
if (!_rom) {
throw failed_constructor ();
}
memcpy (_rom, rom, sizeof (Sample) * _size);
}
std::shared_ptr<AudioRom>
AudioRom::new_rom (Sample* rom, size_t size)
{
return std::shared_ptr<AudioRom> (new AudioRom (rom, size));
}
AudioRom::~AudioRom ()
{
free (_rom);
}
samplecnt_t
AudioRom::read (Sample* dst, samplepos_t pos, samplecnt_t cnt, int channel) const
{
if (channel != 0 || pos >= _size) {
return 0;
}
samplecnt_t to_copy = std::min (cnt, _size - pos);
copy_vector (dst, &_rom[pos], to_copy);
return to_copy;
}