Doc: NR renamed 'New spacing area' node

[lilypond.git] / lily / staff-performer.cc

diff --git a/lily/staff-performer.cc b/lily/staff-performer.cc
index c06ad9b72189a6416b93848c7f70f9b353071de1..26781f0dcd5b53529d6f1ba986b011cdfc73a09a 100644 (file)
--- a/lily/staff-performer.cc
+++ b/lily/staff-performer.cc
@@ -1,7 +1,7 @@
 /*
   This file is part of LilyPond, the GNU music typesetter.
 
-  Copyright (C) 1997--2012 Jan Nieuwenhuizen <janneke@gnu.org>
+  Copyright (C) 1997--2015 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
@@ -27,6 +27,9 @@
 #include "international.hh"
 #include "performer-group.hh"
 #include "warn.hh"
+#include "lily-imports.hh"
+
+#include "translator.icc"
 
 /* Perform a staff. Individual notes should have their instrument
   (staff-wide) set, so we override play_element ()
@@ -76,8 +79,6 @@ map<string, int> Staff_performer::static_channel_map_;
 int Staff_performer::channel_count_ = 0;
 int Staff_performer::staff_performer_count_ = 0;
 
-#include "translator.icc"
-
 ADD_TRANSLATOR (Staff_performer,
                 /* doc */
                 "",
@@ -128,6 +129,32 @@ Staff_performer::new_audio_staff (const string &voice)
   staff_map_[voice] = audio_staff;
   if (!instrument_string_.empty ())
     set_instrument (channel_, voice);
+  // Set initial values (if any) for control functions.
+  for (const Audio_control_function_value_change::Context_property *p
+         = Audio_control_function_value_change::context_properties_;
+       p->name_; ++p)
+    {
+      SCM value = get_property (p->name_);
+      if (scm_is_number (value))
+        {
+          Real val = scm_to_double (value);
+          if (val >= p->range_min_ && val <= p->range_max_)
+            {
+              // Normalize the value to the 0.0 to 1.0 range.
+              val = ((val - p->range_min_)
+                     / (p->range_max_ - p->range_min_));
+              Audio_control_function_value_change *item
+                = new Audio_control_function_value_change (p->control_, val);
+              item->channel_ = channel_;
+              audio_staff->add_audio_item (item);
+              announce_element (Audio_element_info (item, 0));
+            }
+          else
+            warning (_f ("ignoring out-of-range value change for MIDI "
+                         "property `%s'",
+                         p->name_));
+        }
+    }
   return audio_staff;
 }
 
@@ -135,7 +162,7 @@ Audio_staff *
 Staff_performer::get_audio_staff (const string &voice)
 {
   SCM channel_mapping = get_property ("midiChannelMapping");
-  if (channel_mapping != ly_symbol2scm ("instrument")
+  if (!scm_is_eq (channel_mapping, ly_symbol2scm ("instrument"))
       && staff_map_.size ())
     return staff_map_.begin ()->second;
 
@@ -173,9 +200,8 @@ Staff_performer::set_instrument (int channel, const string &voice)
   announce_element (Audio_element_info (instrument_, 0));
   Audio_staff *audio_staff = get_audio_staff (voice);
   audio_staff->add_audio_item (instrument_);
-  SCM proc = ly_lily_module_constant ("percussion?");
-  SCM drums = scm_call_1 (proc, ly_symbol2scm (instrument_string_.c_str ()));
-  audio_staff->percussion_ = (drums == SCM_BOOL_T);
+  SCM drums = Lily::percussion_p (ly_symbol2scm (instrument_string_.c_str ()));
+  audio_staff->percussion_ = to_boolean (drums);
 }
 
 void
@@ -246,11 +272,11 @@ Staff_performer::get_channel (const string &instrument)
 {
   SCM channel_mapping = get_property ("midiChannelMapping");
   map<string, int> &channel_map
-    = (channel_mapping != ly_symbol2scm ("instrument"))
+    = (!scm_is_eq (channel_mapping, ly_symbol2scm ("instrument")))
       ? channel_map_
       : static_channel_map_;
 
-  if (channel_mapping == ly_symbol2scm ("staff")
+  if (scm_is_eq (channel_mapping, ly_symbol2scm ("staff"))
       && channel_ >= 0)
     return channel_;
 
@@ -258,7 +284,7 @@ Staff_performer::get_channel (const string &instrument)
   if (i != channel_map.end ())
     return i->second;
 
-  int channel = (channel_mapping == ly_symbol2scm ("staff"))
+  int channel = (scm_is_eq (channel_mapping, ly_symbol2scm ("staff")))
                 ? channel_count_++
                 : channel_map.size ();
 
@@ -293,18 +319,19 @@ Staff_performer::acknowledge_audio_element (Audio_element_info inf)
         voice = c->id_string ();
       SCM channel_mapping = get_property ("midiChannelMapping");
       string str = new_instrument_string ();
-      if (channel_mapping != ly_symbol2scm ("instrument"))
+      if (!scm_is_eq (channel_mapping, ly_symbol2scm ("instrument")))
         channel_ = get_channel (voice);
       else if (channel_ < 0 && str.empty ())
         channel_ = get_channel (str);
       if (str.length ())
         {
-          if (channel_mapping != ly_symbol2scm ("voice"))
+          if (!scm_is_eq (channel_mapping, ly_symbol2scm ("voice")))
             channel_ = get_channel (str);
           set_instrument (channel_, voice);
           set_instrument_name (voice);
         }
       ai->channel_ = channel_;
+      Audio_staff *audio_staff = get_audio_staff (voice);
       bool encode_dynamics_as_velocity_ = true;
       if (encode_dynamics_as_velocity_)
         {
@@ -318,11 +345,11 @@ Staff_performer::acknowledge_audio_element (Audio_element_info inf)
           else if (Audio_dynamic *d = dynamic_cast<Audio_dynamic *> (inf.elem_))
             {
               dynamic_map_[voice] = d;
-              // Output volume as velocity: must disable Midi_dynamic output
-              d->silent_ = true;
+              // Output volume as velocity: skip Midi_dynamic output for the
+              // current element.
+              return;
             }
         }
-      Audio_staff *audio_staff = get_audio_staff (voice);
       audio_staff->add_audio_item (ai);
     }
 }