X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fperformance.cc;h=4fa167d8261f93c14fed3f63ff14116ccad1a6df;hb=5b4b0d6e9a197e8f9eb085b7c2ad78b8be3e5cfc;hp=35d47e2ebc4869a3839771d15905e36430de77ab;hpb=8d796a54fbfc350c56f04088cb0c009ee0287256;p=lilypond.git

diff --git a/lily/performance.cc b/lily/performance.cc
index 35d47e2ebc..4fa167d826 100644
--- a/lily/performance.cc
+++ b/lily/performance.cc
@@ -3,7 +3,7 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c) 1997--2006 Jan Nieuwenhuizen <janneke@gnu.org>
+  (c) 1997--2008 Jan Nieuwenhuizen <janneke@gnu.org>
 */
 
 #include "performance.hh"
@@ -17,7 +17,7 @@ using namespace std;
 #include "international.hh"
 #include "lily-version.hh"
 #include "main.hh"
-#include "midi-item.hh"
+#include "midi-chunk.hh"
 #include "midi-stream.hh"
 #include "score.hh"
 #include "string-convert.hh"
@@ -34,16 +34,14 @@ Performance::~Performance ()
 }
 
 void
-Performance::output (Midi_stream &midi_stream)
+Performance::output (Midi_stream &midi_stream) const
 {
-  int tracks_i = audio_staffs_.size () + 1;
+  int tracks_ = audio_staffs_.size ();
 
-  // ugh
-  int clocks_per_4_i = 384;
-
-  midi_stream << Midi_header (1, tracks_i, clocks_per_4_i);
-  output_header_track (midi_stream);
-  message (_ ("Track...") + " ");
+  midi_stream.write (Midi_header (1, tracks_, 384));
+  if (be_verbose_global)
+    progress_indication (_ ("Track...") + " ");
+  
   int channel = 0;
   for (vsize i = 0; i < audio_staffs_.size (); i++)
     {
@@ -51,105 +49,51 @@ Performance::output (Midi_stream &midi_stream)
       if (be_verbose_global)
 	progress_indication ("[" + to_string (i));
 
-      /*
-	MIDI players tend to ignore instrument settings on
-	channel 10, the percussion channel by default.
-      */
-      if (channel % 16 == 9)
-	channel++;
+      int midi_channel =  s->channel_;
+
+      if (midi_channel < 0)
+	{
+	  midi_channel = channel;
+	  channel ++;
+	  /*
+	    MIDI players tend to ignore instrument settings on
+	    channel 10, the percussion channel.
+	  */
+	  if (channel % 16 == 9)
+	    channel ++;
+	}
 
       /*
 	Huh? Why does each staff also have a separate channel? We
 	should map channels to voices, not staves. --hwn.
       */
-      if (s->channel_ < 0)
+      if (midi_channel > 15)
 	{
-	  s->channel_ = channel % 16;
-	  if (channel > 15)
-	    {
-	      warning (_ ("MIDI channel wrapped around"));
-	      warning (_ ("remapping modulo 16"));
-	    }
+	  warning (_ ("MIDI channel wrapped around"));
+	  warning (_ ("remapping modulo 16"));
+
+	  midi_channel = midi_channel % 16; 
 	}
 
-      s->output (midi_stream, channel++);
+      s->output (midi_stream, midi_channel);
       if (be_verbose_global)
 	progress_indication ("]");
     }
 }
-
-void
-Performance::output_header_track (Midi_stream &midi_stream)
-{
-  Midi_track midi_track;
-
-  midi_track.channel_ = 9;
-
-  // perhaps multiple text events?
-  string id_string;
-  string str = string (_ ("Creator: "));
-  id_string = String_convert::pad_to (gnu_lilypond_version_string (), 30);
-  str += id_string;
-
-  /*
-    This seems silly, but in fact the audio elements should
-    be generated elsewhere: not midi-specific.
-  */
-  Audio_text creator_a (Audio_text::TEXT, str);
-  Midi_text creator (&creator_a);
-  midi_track.add (Moment (0), &creator);
-
-  /* Better not translate this */
-  str = "Generated automatically by: ";
-  str += id_string;
-
-  Audio_text generate_a (Audio_text::TEXT, str);
-  Midi_text generate (&generate_a);
-  midi_track.add (Moment (0), &generate);
-
-  str = _ ("at ");
-  time_t t (time (0));
-  str += ctime (&t);
-  str = str.substr (0, str.length () - 1);
-  str = String_convert::pad_to (str, 60);
-
-  Audio_text at_a (Audio_text::TEXT, str);
-  Midi_text at (&at_a);
-  midi_track.add (Moment (0), &at);
-
-  // TODO:
-  //  str = _f ("from musical definition: %s", origin_string_);
-
-  Audio_text from_a (Audio_text::TEXT, str);
-  Midi_text from (&from_a);
-  midi_track.add (Moment (0), &from);
-
-  Audio_text track_name_a (Audio_text::TRACK_NAME, "Track "
-			   + String_convert::int2dec (0, 0, '0'));
-  Midi_text track_name (&track_name_a);
-
-  midi_track.add (Moment (0), &track_name);
-  midi_stream << midi_track;
-}
-
 void
 Performance::add_element (Audio_element *p)
 {
-  if (Audio_staff *s = dynamic_cast<Audio_staff *> (p))
-    audio_staffs_.push_back (s);
-
   audio_elements_.push_back (p);
 }
 
 void
-Performance::write_output (string out)
+Performance::write_output (string out) const
 {
   if (out == "-")
     out = "lelie.midi";
 
   /* Maybe a bit crude, but we had this before */
   File_name file_name (out);
-  file_name.ext_ = "midi";
   out = file_name.to_string ();
 
   Midi_stream midi_stream (out);
@@ -159,3 +103,14 @@ Performance::write_output (string out)
   progress_indication ("\n");
 }
 
+
+void
+Performance::process ()
+{
+}
+
+Performance *
+unsmob_performance (SCM x)
+{
+  return dynamic_cast<Performance*> (unsmob_music_output (x));
+}