]> git.donarmstrong.com Git - lilypond.git/commitdiff
lilypond-0.1.9
authorfred <fred>
Sun, 24 Mar 2002 19:54:24 +0000 (19:54 +0000)
committerfred <fred>
Sun, 24 Mar 2002 19:54:24 +0000 (19:54 +0000)
lily/gourlay-breaking.cc
lily/local-key-grav.cc

index 85533c517b02ad5b79d122bfa492898fc8d900d5..90d07e68512f7a8ce3a4d3b997f74a7ecea535d1 100644 (file)
@@ -21,16 +21,17 @@ const HAPPY_DOTS_I = 3;
   Helper to trace back an optimal path 
  */
 struct Break_node {
-    /** this was the previous. If negative, this break should not be
-      considered: this path has infinite energy
-      
-     */
-    int prev_break_i_;
-    Real energy_f_;
-    Col_hpositions line_config_;
-    Break_node() {
-       prev_break_i_ = -1;
-    }
+  /** this was the previous. If negative, this break should not be
+    considered: this path has infinite energy
+    
+    */
+  int prev_break_i_;
+  Real energy_f_;
+  Col_hpositions line_config_;
+  Break_node() 
+  {
+    prev_break_i_ = -1;
+  }
 };
 
 /**
@@ -41,141 +42,164 @@ Array<Col_hpositions>
 Gourlay_breaking::do_solve()const
 {
 
-    Array<Break_node> optimal_paths;
-    Line_of_cols all = all_cols();
-    Array<int> breaks = find_break_indices();
-    
-    optimal_paths.set_size (breaks.size());
+  Array<Break_node> optimal_paths;
+  Line_of_cols all = all_cols();
+  Array<int> breaks = find_break_indices();
+  
+  optimal_paths.set_size (breaks.size());
 
-    Break_node first_node ;
-    first_node.prev_break_i_ = -1;
-    first_node.line_config_.energy_f_ = 0;
-    
-    optimal_paths[0] = first_node; 
-    int break_idx=1;
+  Break_node first_node ;
+  first_node.prev_break_i_ = -1;
+  first_node.line_config_.energy_f_ = 0;
+  
+  optimal_paths[0] = first_node; 
+  int break_idx=1;
 
   
-    for (; break_idx< breaks.size(); break_idx++) {
-       Array<int> candidates;
-       Array<Col_hpositions> candidate_lines;
-       Pointer_list<Line_spacer*> spacer_p_list;
+  for (; break_idx< breaks.size(); break_idx++) 
+    {
+      Array<int> candidates;
+      Array<Col_hpositions> candidate_lines;
+      Pointer_list<Line_spacer*> spacer_p_list;
        
-       /*
-         start with a short line, add measures. At some point 
-         the line becomes infeasible. Then we don't try to add more 
-        */
-       for (int start_idx = break_idx; start_idx--;){
-           if  (break_idx - start_idx > max_measures_i_) 
-               break;
-
-           if (optimal_paths[start_idx].prev_break_i_ < 0
-               && optimal_paths[start_idx].line_config_.energy_f_)
+      /*
+       start with a short line, add measures. At some point 
+       the line becomes infeasible. Then we don't try to add more 
+       */
+      for (int start_idx = break_idx; start_idx--;)
+       {
+         if  (break_idx - start_idx > max_measures_i_) 
+           break;
+
+         if (optimal_paths[start_idx].prev_break_i_ < 0
+             && optimal_paths[start_idx].line_config_.energy_f_)
                
-               continue;
+           continue;
            
-           Line_of_cols line = all.slice (breaks[start_idx], breaks[break_idx]+1);
+         Line_of_cols line = all.slice (breaks[start_idx], breaks[break_idx]+1);
            
-           line[0] = line[0]->postbreak_p_;
-           line.top() = line.top ()->prebreak_p_;
+         line[0] = line[0]->postbreak_p_;
+         line.top() = line.top ()->prebreak_p_;
            
-           if (!feasible (line))
-               break;
+         if (!feasible (line))
+           break;
            
-           Col_hpositions approx;
-           approx.cols = line;
+         Col_hpositions approx;
+         approx.cols = line;
            
-           approx.spacer_l_ = generate_spacing_problem (line);
-           spacer_p_list.bottom().add (approx.spacer_l_);
+         approx.spacer_l_ = generate_spacing_problem (line);
+         spacer_p_list.bottom().add (approx.spacer_l_);
 
-           ((Break_algorithm*)this)->approx_stats_.add (approx.cols);
-           approx.approximate_solve_line();
+         ((Break_algorithm*)this)->approx_stats_.add (approx.cols);
+         approx.approximate_solve_line();
            
-           if  (approx.energy_f_  > energy_bound_f_){ 
-               continue;
+         if  (approx.energy_f_  > energy_bound_f_)
+           {
+             continue;
            }
 
            
-           // this is a likely candidate. Store it.
-           candidate_lines.push (approx);
-           candidates.push (start_idx);
+         // this is a likely candidate. Store it.
+         candidate_lines.push (approx);
+         candidates.push (start_idx);
        }
 
            
-       int minimal_j = -1;
-       Real minimal_energy = infinity_f;
-       for (int j=0; j < candidates.size(); j++) {
-           int start = candidates[j];
-           if ( optimal_paths[start].line_config_.energy_f_
-                + candidate_lines[j].energy_f_  > minimal_energy)
+      int minimal_j = -1;
+      Real minimal_energy = infinity_f;
+      for (int j=0; j < candidates.size(); j++) 
+       {
+         int start = candidates[j];
+         if ( optimal_paths[start].line_config_.energy_f_
+              + candidate_lines[j].energy_f_  > minimal_energy)
                
-               continue;
+           continue;
 
-           if ( !candidate_lines[j].satisfies_constraints_b_) {
-                candidate_lines[j].solve_line();
-                ((Break_algorithm*)this)->exact_stats_.add ( candidate_lines[j].cols);
+         if ( !candidate_lines[j].satisfies_constraints_b_) 
+           {
+             candidate_lines[j].solve_line();
+             ((Break_algorithm*)this)->exact_stats_.add ( candidate_lines[j].cols);
            }
            
-           Real this_energy 
-               = optimal_paths[start].line_config_.energy_f_ 
-               + candidate_lines[j].energy_f_ ;
+         Real this_energy 
+           = optimal_paths[start].line_config_.energy_f_ 
+           + candidate_lines[j].energy_f_ ;
            
-           if ( this_energy < minimal_energy) {
-               minimal_j = j;
-               minimal_energy = this_energy;
+         if ( this_energy < minimal_energy) 
+           {
+             minimal_j = j;
+             minimal_energy = this_energy;
            }
        }
 
-       if (minimal_j < 0) {
-           optimal_paths[break_idx].prev_break_i_ = -1;
-           optimal_paths[break_idx].line_config_.energy_f_ = infinity_f;
-       } else {
-           optimal_paths[break_idx].prev_break_i_ = candidates[minimal_j];
-           optimal_paths[break_idx].line_config_ = candidate_lines[minimal_j];
+      if (minimal_j < 0) 
+       {
+         optimal_paths[break_idx].prev_break_i_ = -1;
+         optimal_paths[break_idx].line_config_.energy_f_ = infinity_f;
+       }
+      else 
+       {
+         optimal_paths[break_idx].prev_break_i_ = candidates[minimal_j];
+         optimal_paths[break_idx].line_config_ = candidate_lines[minimal_j];
        }
 
-       if ( !(break_idx % HAPPY_DOTS_I))
-           *mlog << "[" << break_idx << "]"<<flush;
-    }
-
-    if  ( break_idx % HAPPY_DOTS_I) 
+      if ( !(break_idx % HAPPY_DOTS_I))
        *mlog << "[" << break_idx << "]"<<flush;
-    print_stats();
+    }
 
-    
+  if  ( break_idx % HAPPY_DOTS_I) 
+    *mlog << "[" << break_idx << "]"<<flush;
 
-    Array<int> final_breaks;
+  Array<int> final_breaks;
 
-    Array<Col_hpositions> lines;
-    /* skip 0-th element, since it is a "dummy" elt*/
-    for (int i = optimal_paths.size()-1; i> 0;) {
-       final_breaks.push ( i);
-       assert ( i > optimal_paths[i].prev_break_i_);
+  Array<Col_hpositions> lines;
+  Real min_energy_f_ = infinity_f;
+  Real max_energy_f_ = 0;
+  
+  /* skip 0-th element, since it is a "dummy" elt*/
+  for (int i = optimal_paths.size()-1; i> 0;) 
+    {
+      final_breaks.push ( i);
+      assert ( i > optimal_paths[i].prev_break_i_);
+
+      // there was no "feasible path"
+      if (!optimal_paths[i].line_config_.config.size()) {
+       final_breaks.set_size (0);
+       break;
+      }
+      i = optimal_paths[i].prev_break_i_;
+    }
 
-       // there was no "feasible path"
-       if (!optimal_paths[i].line_config_.config.size())
-          return lines; 
-       i = optimal_paths[i].prev_break_i_;
+  print_stats();
+  /*
+    TODO print variation in energy
+   */
+  if (max_energy_f_ ) 
+    {
+      ;
     }
+  
+  
 
-    for (int i= final_breaks.size(); i--;) 
-       lines.push ( optimal_paths[final_breaks[i]].line_config_);
+  for (int i= final_breaks.size(); i--;) 
+    lines.push ( optimal_paths[final_breaks[i]].line_config_);
 
-    
-    return lines;
+  
+  return lines;
 }
 
 
 Gourlay_breaking::Gourlay_breaking()
 {
-    get_line_spacer = Spring_spacer::constructor;
-    energy_bound_f_ = infinity_f;
-    max_measures_i_ = INT_MAX;
+  get_line_spacer = Spring_spacer::constructor;
+  energy_bound_f_ = infinity_f;
+  max_measures_i_ = INT_MAX;
 }
 
 void
 Gourlay_breaking::do_set_pscore()
 {
-    energy_bound_f_ = pscore_l_->paper_l_->get_var ("gourlay_energybound");
-    max_measures_i_ =int (rint (pscore_l_->paper_l_->get_var ("gourlay_maxmeasures")));
+  energy_bound_f_ = pscore_l_->paper_l_->get_var ("gourlay_energybound");
+  max_measures_i_ =int (rint (pscore_l_->paper_l_->get_var ("gourlay_maxmeasures")));
 }
 
index b1e6cb6b903d917ab0f8ac71bb6ef77262b35c9f..82134c860846ba8e7395d9d4482c4114df238297 100644 (file)
 
 Local_key_engraver::Local_key_engraver()
 {
-    key_C_ = 0;
+  key_C_ = 0;
 }
 
 void
 Local_key_engraver::do_pre_move_processing()
 {
-    Local_key_item *key_item_p = 0;
-    if (mel_l_arr_.size()) {
-       for (int i=0; i  < mel_l_arr_.size(); i++) {
+  Local_key_item *key_item_p = 0;
+  if (mel_l_arr_.size()) 
+    {
+       for (int i=0; i  < mel_l_arr_.size(); i++) 
+         {
            Item * support_l = support_l_arr_[i];
            Note_req * note_l = mel_l_arr_[i];
 
@@ -37,10 +39,8 @@ Local_key_engraver::do_pre_move_processing()
                local_key_.oct (note_l->octave_i_).acc (note_l->notename_i_)
                == note_l->accidental_i_) 
                continue;
-               
-               
-
-           if (!key_item_p) {
+           if (!key_item_p) 
+             {
                int c0_i=0;
 
                Staff_info inf = get_staff_info();
@@ -48,52 +48,61 @@ Local_key_engraver::do_pre_move_processing()
                    c0_i = *get_staff_info().c0_position_i_l_;  
                
                key_item_p = new Local_key_item (c0_i);
-           }
+             }
            key_item_p->add (note_l);
            key_item_p->add_support (support_l);
            local_key_.oct (note_l->octave_i_)
                .set (note_l->notename_i_, note_l->accidental_i_);
-       }
+         }
        
     }
-    if (key_item_p) {
+  if (key_item_p) 
+    {
        for (int i=0; i < support_l_arr_.size(); i++)
            key_item_p->add_support (support_l_arr_[i]);
        
        announce_element (Score_elem_info (key_item_p, 0)); // ugh ugh ugh
        typeset_element (key_item_p);
     }
-    
-    mel_l_arr_.clear();
-    tied_l_arr_.clear();
-    support_l_arr_.clear();
-    forced_l_arr_.clear();     
+  
+  mel_l_arr_.clear();
+  tied_l_arr_.clear();
+  support_l_arr_.clear();
+  forced_l_arr_.clear();       
 }
+
 /*
   whoah .. this looks hairy!
  */
 void
 Local_key_engraver::acknowledge_element (Score_elem_info info)
 {    
-    Score_elem * elem_l = info.elem_l_;
-    if (info.req_l_->musical() && info.req_l_->musical ()->note ()) {
+  Score_elem * elem_l = info.elem_l_;
+  if (info.req_l_->musical() && info.req_l_->musical ()->note ()) 
+    {
        Note_req * note_l = info.req_l_->musical()->note ();
        Item * item_l = info.elem_l_->item();
 
        mel_l_arr_.push (note_l);
        support_l_arr_.push (item_l);
        
-    } else if (info.req_l_->command()
-              && info.req_l_->command()->keychange ()) { 
+    }
+  else if (info.req_l_->command()
+              && info.req_l_->command()->keychange ()) 
+                {
        Key_engraver * key_grav_l =
            (Key_engraver*)info.origin_grav_l_arr_[0];
        key_C_ = &key_grav_l->key_;
        local_key_ = *key_C_;
-    } else if (elem_l->name() == Key_item::static_name ()) {
+    }
+  else if (elem_l->name() == Key_item::static_name ()) 
+    {
        Key_engraver * key_grav_l =
            (Key_engraver*)info.origin_grav_l_arr_[0];
        key_C_ = &key_grav_l->key_;
-    } else if (elem_l->name() == Tie::static_name ()) {
+    }
+  else if (elem_l->name() == Tie::static_name ()) 
+    {
        Tie * tie_l = (Tie*)elem_l->spanner();
        if (tie_l->same_pitch_b_)
            tied_l_arr_.push (tie_l-> right_head_l_);
@@ -103,8 +112,9 @@ Local_key_engraver::acknowledge_element (Score_elem_info info)
 void
 Local_key_engraver::do_process_requests()
 {
-    Time_description const * time_C_ = get_staff_info().time_C_;
-    if (time_C_ && !time_C_->whole_in_measure_){
+  Time_description const * time_C_ = get_staff_info().time_C_;
+  if (time_C_ && !time_C_->whole_in_measure_)
+    {
        if (key_C_)
            local_key_= *key_C_;
     }