87 lines
2.0 KiB
C++
87 lines
2.0 KiB
C++
/*
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Copyright (C) 2002-2010 Paul Davis
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This program is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2 of the License, or (at your
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option) any later version.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program; if not, write to the Free Software Foundation,
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Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <cmath>
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#include <cassert>
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#include "temporal/bbt_time.h"
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using namespace Temporal;
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BBT_Offset::BBT_Offset (double dbeats)
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{
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/* NOTE: this does not construct a BBT time in a canonical form,
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in that beats may be a very large number, and bars will
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always be zero. Hence ... it's a BBT_Offset
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*/
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assert (dbeats >= 0);
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bars = 0;
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beats = (int32_t) lrint (floor (dbeats));
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ticks = (int32_t) lrint (floor (Temporal::ticks_per_beat * fmod (dbeats, 1.0)));
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}
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std::ostream&
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std::operator<< (std::ostream& o, Temporal::BBT_Time const & bbt)
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{
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o << bbt.bars << '|' << bbt.beats << '|' << bbt.ticks;
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return o;
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}
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std::ostream&
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std::operator<< (std::ostream& o, const Temporal::BBT_Offset& bbt)
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{
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o << bbt.bars << '|' << bbt.beats << '|' << bbt.ticks;
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return o;
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}
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std::istream&
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std::operator>>(std::istream& i, Temporal::BBT_Offset& bbt)
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{
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int32_t B, b, t;
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char skip_pipe_char;
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i >> B;
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i >> skip_pipe_char;
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i >> b;
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i >> skip_pipe_char;
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i >> t;
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bbt = Temporal::BBT_Offset (B, b, t);
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return i;
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}
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std::istream&
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std::operator>>(std::istream& i, Temporal::BBT_Time& bbt)
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{
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int32_t B, b, t;
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char skip_pipe_char;
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i >> B;
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i >> skip_pipe_char;
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i >> b;
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i >> skip_pipe_char;
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i >> t;
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bbt = Temporal::BBT_Time (B, b, t);
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return i;
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}
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