Doc: Usage - OOoLilyPond only works up to v4

[lilypond.git] / lily / beaming-pattern.cc

diff --git a/lily/beaming-pattern.cc b/lily/beaming-pattern.cc
index 8f27c23ef57955f027151c4fd8e8b3d93a8fc9bc..cb8c91dbece9de761ba7a5d1421e4f5e8c12987c 100644 (file)
--- a/lily/beaming-pattern.cc
+++ b/lily/beaming-pattern.cc
@@ -1,7 +1,7 @@
 /*
   This file is part of LilyPond, the GNU music typesetter.
 
-  Copyright (C) 1999--2012 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  Copyright (C) 1999--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
 
   LilyPond is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -19,6 +19,7 @@
 
 #include "context.hh"
 #include "beaming-pattern.hh"
+#include "misc.hh"
 
 /*
   Represents a stem belonging to a beam. Sometimes (for example, if the stem
@@ -44,7 +45,7 @@ Beam_rhythmic_element::Beam_rhythmic_element ()
 }
 
 Beam_rhythmic_element::Beam_rhythmic_element (Moment m, int i, bool inv,
-  Rational factor, bool tuplet_start)
+                                              Rational factor, bool tuplet_start)
 {
   start_moment_ = m;
   rhythmic_importance_ = 0;
@@ -131,6 +132,8 @@ Beaming_pattern::beamify (Beaming_options const &options)
   if (infos_.size () <= 1)
     return;
 
+  int subdivide_beam_count = intlog2(options.base_moment_.main_part_.den())-2;
+
   unbeam_invisible_stems ();
 
   if (infos_[0].start_moment_.grace_part_)
@@ -166,8 +169,9 @@ Beaming_pattern::beamify (Beaming_options const &options)
         if (non_flag_dir)
           {
             int importance = infos_[i + 1].rhythmic_importance_;
-            int count = (importance < 0 && options.subdivide_beams_)
-                        ? 1 : min (min (infos_[i].count (non_flag_dir),
+            int count = (importance < 0 && options.subdivide_beams_) 
+                        ? subdivide_beam_count
+                        : min (min (infos_[i].count (non_flag_dir),
                                         infos_[i + non_flag_dir].count (-non_flag_dir)),
                                    infos_[i - non_flag_dir].count (non_flag_dir));
 
@@ -189,7 +193,6 @@ update_tuplet (Moment start_moment, Rational factor, Moment *tuplet_start_moment
     *tuplet_start_moment = Moment (-1, 1);
 }
 
-
 /*
    Get the group start position, the next group starting position, and the
    next beat starting position, given start_moment, base_moment,
@@ -209,7 +212,7 @@ find_location (SCM grouping, Moment base_moment, Moment start_moment,
 
   while (*next_group_pos < *next_beat_pos)
     {
-      int group_count = 1;  //default -- 1 base moments in a beam
+      I64 group_count = 1;  //default -- 1 base moments in a beam
       if (scm_is_pair (grouping))
         {
           group_count = scm_to_int (scm_car (grouping));
@@ -218,17 +221,17 @@ find_location (SCM grouping, Moment base_moment, Moment start_moment,
 
       // If we have a tuplet, the count should be determined from
       // the maximum tuplet size for beamed tuplets.
-      int tuplet_number = factor.den ();
-      if (tuplet_number > 1)
+      U64 tuplet_number = factor.den ();
+      if (tuplet_number > 1U)
         {
           // We use 1/8 as the base moment for the tuplet because it's
           // the largest beamed value.  If the tuplet is shorter, it's
           // OK, the code still works
-          int test_count = ( Moment (Rational (1, 8) / factor ) / base_moment).num ();
+          I64 test_count = ( Moment (Rational (1, 8) / factor) / base_moment).num ();
           if (test_count > group_count) group_count = test_count;
         }
       *group_pos = *next_group_pos;
-      *next_group_pos = *group_pos + group_count * base_moment;
+      *next_group_pos = *group_pos + Rational(group_count) * base_moment;
     }
 }
 
@@ -239,7 +242,7 @@ Beaming_pattern::find_rhythmic_importance (Beaming_options const &options)
   Moment next_group_pos (0);
   Moment next_beat_pos (options.base_moment_);
   Moment tuplet_start_moment (-1, 1);
-  int tuplet_number = 1;
+  I64 tuplet_number = 1;
 
   SCM grouping = options.grouping_;
   vsize i = 0;
@@ -282,8 +285,8 @@ Beaming_pattern::find_rhythmic_importance (Beaming_options const &options)
           // the fraction of the tuplet, instead of the fraction of
           // a beat.
           Moment ratio = (tuplet_number == 1)
-                           ? dt / options.base_moment_
-                           : tuplet_dt / Moment (1, 8)  / tuplet_moment;
+                         ? dt / options.base_moment_
+                         : tuplet_dt / Moment (1, 8) / tuplet_moment;
           if (infos_[i].rhythmic_importance_ >= 0)
             infos_[i].rhythmic_importance_ = (int) ratio.den ();
 
@@ -357,7 +360,7 @@ Beaming_pattern::end_moment (int i) const
                 0);
 
   return infos_.at (i).start_moment_
-    + infos_.at(i).factor_ * dur.get_length ();
+         + infos_.at (i).factor_ * dur.get_length ();
 }
 
 bool