lily/score.cc

   1 /*
   2   score.cc -- implement Score
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   7 */
   8
   9 #include <stdio.h>
  10
  11 #include "ly-smobs.icc"
  12
  13 #include "score.hh"
  14 #include "warn.hh"
  15 #include "music-output-def.hh"
  16 #include "music-output.hh"
  17 #include "music-iterator.hh"
  18 #include "music.hh"
  19 #include "global-context.hh"
  20 #include "scm-hash.hh"
  21 #include "cpu-timer.hh"
  22 #include "main.hh"
  23 #include "paper-def.hh"
  24 #include "ly-module.hh"
  25 #include "paper-book.hh"
  26 #include "paper-score.hh"
  27 #include "input-file-results.hh"
  28
  29
  30 /*
  31   TODO: junkme.
  32  */
  33 Score::Score ()
  34   : Input ()
  35 {
  36   header_ = SCM_EOL;
  37   music_ = SCM_EOL;
  38
  39   smobify_self ();
  40 }
  41
  42 Score::~Score ()
  43 {
  44
  45 }
  46
  47
  48
  49
  50 IMPLEMENT_SMOBS (Score);
  51 IMPLEMENT_DEFAULT_EQUAL_P (Score);
  52
  53
  54 SCM
  55 Score::mark_smob (SCM s)
  56 {
  57   Score * sc = (Score*) SCM_CELL_WORD_1 (s);
  58
  59   if (sc->header_)
  60     scm_gc_mark (sc->header_);
  61   for (int i = sc->defs_.size (); i--;)
  62     scm_gc_mark (sc->defs_[i]->self_scm ());
  63
  64   return sc->music_;
  65 }
  66
  67 int
  68 Score::print_smob (SCM , SCM p, scm_print_state*)
  69 {
  70   scm_puts ("#<Score>", p);
  71
  72   return 1;
  73 }
  74
  75
  76
  77 /*
  78   store point & click locations.
  79   Global to save some time. (Sue us!)
  80  */
  81
  82 Score::Score (Score const &s)
  83   : Input (s)
  84 {
  85   music_ = SCM_EOL;
  86   header_ = 0;
  87   smobify_self ();
  88
  89   Music * m =unsmob_music (s.music_);
  90   music_ =  m?m->clone ()->self_scm () : SCM_EOL;
  91   scm_gc_unprotect_object (music_);
  92
  93   for (int i = 0; i < s.defs_.size (); i++)
  94     defs_.push (s.defs_[i]->clone ());
  95
  96   header_ = ly_make_anonymous_module ();
  97   if (ly_module_p (s.header_))
  98     ly_import_module (header_, s.header_);
  99 }
 100
 101 LY_DEFINE (ly_run_translator, "ly:run-translator",
 102           2, 0, 0, (SCM mus, SCM output_def),
 103            "Process @var{mus} according to @var{output_def}. "
 104            "An interpretation context is set up, "
 105            "and @var{mus} is interpreted with it.  "
 106            "The context is returned in its final state.")
 107 {
 108   Music_output_def *odef = unsmob_music_output_def (output_def);
 109   Music *music = unsmob_music (mus);
 110
 111   SCM_ASSERT_TYPE (music, mus, SCM_ARG1, __FUNCTION__, "Music");
 112   SCM_ASSERT_TYPE (odef, output_def, SCM_ARG2, __FUNCTION__, "Output definition");
 113
 114   Cpu_timer timer;
 115
 116   Global_context * trans = new Global_context (odef,
 117                                                music->get_length ()
 118                                                );
 119
 120   if (!trans)
 121     {
 122       programming_error ("no toplevel translator");
 123       return SCM_BOOL_F;
 124     }
 125   progress_indication (_ ("Interpreting music... "));
 126
 127   SCM protected_iter = Music_iterator::get_static_get_iterator (music);
 128   Music_iterator * iter = unsmob_iterator (protected_iter);
 129   iter->init_translator (music, trans);
 130
 131   iter->construct_children ();
 132
 133   if (! iter->ok ())
 134     {
 135       warning (_ ("Need music in a score"));
 136       return SCM_BOOL_F;        // todo: should throw exception.
 137     }
 138
 139   trans->run_iterator_on_me (iter);
 140   iter->quit ();
 141   scm_remember_upto_here_1 (protected_iter);
 142   trans->finish ();
 143
 144   if (verbose_global_b)
 145     progress_indication (_f ("elapsed time: %.2f seconds",  timer.read ()));
 146
 147
 148   return scm_gc_unprotect_object (trans->self_scm ());
 149 }
 150
 151 LY_DEFINE (ly_format_output, "ly:format-output",
 152            2, 0, 0, (SCM context, SCM outname),
 153            "Given a Score context in its final state,"
 154            "process it and return the (rendered) result.")
 155 {
 156   Global_context *g = dynamic_cast<Global_context*> (unsmob_context (context));
 157   SCM_ASSERT_TYPE (g, context, SCM_ARG1, __FUNCTION__, "Global context");
 158   SCM_ASSERT_TYPE (ly_string_p (outname), outname, SCM_ARG2, __FUNCTION__, "output filename");
 159
 160   Music_output *output = g->get_output ();
 161   progress_indication ("\n");
 162   // ugh, midi still wants outname
 163   return output->process (ly_scm2string (outname));
 164 }
 165
 166 void
 167 default_rendering (SCM music, SCM outdef, SCM header, SCM outname)
 168 {
 169   SCM context = ly_run_translator (music, outdef);
 170
 171   if (Global_context *g = dynamic_cast<Global_context*>
 172       (unsmob_context (context)))
 173     {
 174       SCM systems = ly_format_output (context, outname);
 175       Music_output *output = g->get_output ();
 176       if (systems != SCM_UNDEFINED)
 177         {
 178           Paper_score *ps = dynamic_cast<Paper_score*> (output);
 179
 180           paper_book->papers_.push (ps->paper_);
 181           paper_book->scores_.push (systems);
 182           paper_book->global_headers_.push (global_input_file->header_);
 183           paper_book->headers_.push (header);
 184           if (output_format_global != PAGE_LAYOUT)
 185             paper_book->classic_output (ly_scm2string (outname));
 186         }
 187       delete output;
 188     }
 189 }