lily/performance.cc

   1 /*
   2   This file is part of LilyPond, the GNU music typesetter.
   3
   4   Copyright (C) 1997--2011 Jan Nieuwenhuizen <janneke@gnu.org>
   5
   6   LilyPond is free software: you can redistribute it and/or modify
   7   it under the terms of the GNU General Public License as published by
   8   the Free Software Foundation, either version 3 of the License, or
   9   (at your option) any later version.
  10
  11   LilyPond is distributed in the hope that it will be useful,
  12   but WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14   GNU General Public License for more details.
  15
  16   You should have received a copy of the GNU General Public License
  17   along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #include "performance.hh"
  21
  22 #include <ctime>
  23 using namespace std;
  24
  25 #include "audio-column.hh"
  26 #include "audio-staff.hh"
  27 #include "file-name.hh"
  28 #include "international.hh"
  29 #include "lily-version.hh"
  30 #include "main.hh"
  31 #include "midi-chunk.hh"
  32 #include "midi-stream.hh"
  33 #include "score.hh"
  34 #include "string-convert.hh"
  35 #include "warn.hh"
  36
  37 Performance::Performance (bool ports)
  38   : midi_ (0)
  39   , ports_ (ports)
  40 {
  41 }
  42
  43 Performance::~Performance ()
  44 {
  45   junk_pointers (audio_elements_);
  46 }
  47
  48 void
  49 Performance::output (Midi_stream &midi_stream) const
  50 {
  51   int tracks_ = audio_staffs_.size ();
  52
  53   midi_stream.write (Midi_header (1, tracks_, 384));
  54   if (be_verbose_global)
  55     progress_indication (_ ("Track...") + " ");
  56
  57   for (vsize i = 0; i < audio_staffs_.size (); i++)
  58     {
  59       Audio_staff *s = audio_staffs_[i];
  60       if (be_verbose_global)
  61         progress_indication ("[" + to_string (i));
  62       s->output (midi_stream, i, ports_);
  63       if (be_verbose_global)
  64         progress_indication ("]");
  65     }
  66 }
  67
  68 void
  69 Performance::add_element (Audio_element *p)
  70 {
  71   audio_elements_.push_back (p);
  72 }
  73
  74 void
  75 Performance::write_output (string out) const
  76 {
  77   if (out == "-")
  78     out = "lelie.midi";
  79
  80   /* Maybe a bit crude, but we had this before */
  81   File_name file_name (out);
  82   out = file_name.to_string ();
  83
  84   Midi_stream midi_stream (out);
  85   message (_f ("MIDI output to `%s'...", out));
  86
  87   output (midi_stream);
  88   progress_indication ("\n");
  89 }
  90
  91
  92 void
  93 Performance::process ()
  94 {
  95 }
  96
  97 Performance *
  98 unsmob_performance (SCM x)
  99 {
 100   return dynamic_cast<Performance*> (unsmob_music_output (x));
 101 }