Map voices to channels in MIDI output.

[lilypond.git] / lily / include / audio-item.hh

diff --git a/lily/include/audio-item.hh b/lily/include/audio-item.hh
index 43009195c3cf1db2608bcea5f918df9727a339ff..525544dc1df0f86db111081a24cfc465a99358c0 100644 (file)
--- a/lily/include/audio-item.hh
+++ b/lily/include/audio-item.hh
@@ -1,7 +1,20 @@
 /*
-  audio-item.hh -- declare Audio_items
+  This file is part of LilyPond, the GNU music typesetter.
 
-  (c) 1996--2006 Jan Nieuwenhuizen <janneke@gnu.org>
+  Copyright (C) 1996--2011 Jan Nieuwenhuizen <janneke@gnu.org>
+
+  LilyPond 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 3 of the License, or
+  (at your option) any later version.
+
+  LilyPond 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 LilyPond.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 #ifndef AUDIO_ITEM_HH
@@ -11,17 +24,17 @@
 #include "moment.hh"
 #include "pitch.hh"
 
-/**
-
-Any piece of audio information.  We need virtual constructors, let's
-try decentralised factory for specific audio implemenations.
-*/
 class Audio_item : public Audio_element
 {
 public:
-  Audio_item ();
   Audio_column *audio_column_;
+  int channel_;
+
+  Audio_item ();
+  Audio_column *get_column () const;
 
+  virtual void render ();
+  
 private:
   Audio_item (Audio_item const &);
   Audio_item &operator = (Audio_item const &);
@@ -30,11 +43,24 @@ private:
 class Audio_dynamic : public Audio_item
 {
 public:
-  Audio_dynamic (Real volume);
+  Audio_dynamic ();
 
   Real volume_;
 };
 
+class Audio_span_dynamic : public Audio_element
+{
+public:
+  Direction grow_dir_;
+  vector<Audio_dynamic*> dynamics_;
+
+
+  virtual void render ();
+  void add_absolute (Audio_dynamic*);
+  Audio_span_dynamic ();
+};
+
+
 class Audio_key : public Audio_item
 {
 public:
@@ -55,13 +81,15 @@ public:
 class Audio_note : public Audio_item
 {
 public:
-  Audio_note (Pitch p, Moment m, bool tie_event, int transposing);
+  Audio_note (Pitch p, Moment m, bool tie_event, Pitch transposition);
 
-  void tie_to (Audio_note *);
+  // with tieWaitForNote, there might be a skip between the tied notes!
+  void tie_to (Audio_note *, Moment skip = 0);
 
   Pitch pitch_;
   Moment length_mom_;
-  int transposing_;
+  Pitch transposing_;
+  
   Audio_note *tied_;
   bool tie_event_;
 };
@@ -91,7 +119,7 @@ public:
 class Audio_tempo : public Audio_item
 {
 public:
-  Audio_tempo (int per_minute_4_i);
+  Audio_tempo (int per_minute_4);
 
   int per_minute_4_;
 };
@@ -105,5 +133,9 @@ public:
   int one_beat_;
 };
 
+int moment_to_ticks (Moment);
+Real moment_to_real (Moment);
+Moment remap_grace_duration (Moment);
+
 #endif // AUDIO_ITEM_HH