/* * lfo.cpp - defination of Lfo class. * * Copyright (c) 2014 David French * * This file is part of LMMS - https://lmms.io * * 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 (see COPYING); if not, write to the * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, * Boston, MA 02110-1301 USA. * */ #include "Lfo.h" #include namespace lmms { Lfo::Lfo( int samplerate ) { m_samplerate = samplerate; m_twoPiOverSr = F_2PI / samplerate; } float Lfo::tick() { float output = sinf( m_phase ); m_phase += m_increment; return output; } } // namespace lmms