-#include <stdio.h>
-#include <stdlib.h>
+/*
+ This file is part of LilyPond, the GNU music typesetter.
+
+ Copyright (C) 2001--2014 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
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ LilyPond is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <cstdio>
+#include <cstdlib>
+using namespace std;
-#include "grob.hh"
#include "item.hh"
-#include "spanner.hh"
-#include "system.hh"
+#include "system.hh"
+#include "grob-array.hh"
-static SCM break_criterion;
+static SCM break_criterion;
void
set_break_subsititution (SCM criterion)
{
}
/*
- Perform the substitution for a single grob.
- */
-SCM
+ Perform the substitution for a single grob.
+*/
+Grob *
substitute_grob (Grob *sc)
{
- if (SCM_INUMP (break_criterion))
+ if (scm_is_integer (break_criterion))
{
- Item * i = dynamic_cast<Item*> (sc);
+ Item *i = dynamic_cast<Item *> (sc);
Direction d = to_dir (break_criterion);
if (i && i->break_status_dir () != d)
- {
- Item *br = i->find_prebroken_piece (d);
- return (br) ? br->self_scm () : SCM_UNDEFINED;
- }
+ {
+ Item *br = i->find_prebroken_piece (d);
+ return br;
+ }
}
else
{
- System * line
- = dynamic_cast<System*> (unsmob_grob (break_criterion));
+ System *line
+ = dynamic_cast<System *> (unsmob_grob (break_criterion));
if (sc->get_system () != line)
- {
- sc = sc->find_broken_piece (line);
+ sc = sc->find_broken_piece (line);
- }
-
/* now: !sc || (sc && sc->get_system () == line) */
if (!sc)
- return SCM_UNDEFINED;
+ return 0;
/* now: sc && sc->get_system () == line */
if (!line)
- return sc->self_scm();
+ return sc;
/*
- We don't return SCM_UNDEFINED for
- suicided grobs, for two reasons
+ We don't return SCM_UNDEFINED for
+ suicided grobs, for two reasons
- - it doesn't work (strange disappearing objects)
+ - it doesn't work (strange disappearing objects)
- - it forces us to mark the parents of a grob, leading to
- a huge recursion in the GC routine.
- */
-
- /*
- This was introduced in 1.3.49 as a measure to prevent
- programming errors. It looks rather expensive (?).
-
- TODO:
-
- benchmark , document when (what kind of programming
- errors) this happens.
+ - it forces us to mark the parents of a grob, leading to
+ a huge recursion in the GC routine.
*/
+
if (sc->common_refpoint (line, X_AXIS)
- && sc->common_refpoint (line, Y_AXIS))
- {
- return sc->self_scm ();
- }
- return SCM_UNDEFINED;
+ && sc->common_refpoint (line, Y_AXIS))
+ return sc;
+ return 0;
}
- return sc->self_scm();
+ return sc;
}
-
-
/*
Do break substitution in S, using CRITERION. Return new value.
CRITERION is either a SMOB pointer to the desired line, or a number
SCM
do_break_substitution (SCM src)
{
- again:
-
+again:
+
if (unsmob_grob (src))
{
- return substitute_grob (unsmob_grob (src));
+ Grob *new_ptr = substitute_grob (unsmob_grob (src));
+ return new_ptr ? new_ptr->self_scm () : SCM_UNDEFINED;
}
- else if (gh_vector_p (src))
+ else if (scm_is_vector (src))
{
- int l = SCM_VECTOR_LENGTH (src);
- SCM nv = scm_c_make_vector (l, SCM_UNDEFINED);
-
- for (int i =0 ; i< l ; i++)
- {
- SCM si = scm_int2num (i);
- scm_vector_set_x (nv, si, do_break_substitution (scm_vector_ref (src, si)));
- }
+ int len = scm_c_vector_length (src);
+ SCM nv = scm_c_make_vector (len, SCM_UNDEFINED);
+ for (int i = 0; i < len; i++)
+ {
+ SCM si = scm_from_int (i);
+ scm_vector_set_x (nv, si,
+ do_break_substitution (scm_vector_ref (src, si)));
+ }
}
- else if (ly_pair_p (src))
+ else if (scm_is_pair (src))
{
/*
- UGH! breaks on circular lists.
+ UGH! breaks on circular lists.
*/
- SCM newcar = do_break_substitution (ly_car (src));
- SCM oldcdr = ly_cdr (src);
-
+ SCM newcar = do_break_substitution (scm_car (src));
+ SCM oldcdr = scm_cdr (src);
+
if (newcar == SCM_UNDEFINED
- && (gh_pair_p (oldcdr) || oldcdr == SCM_EOL))
- {
- /*
- This is tail-recursion, ie.
-
- return do_break_substution (cdr);
-
- We don't want to rely on the compiler to do this. Without
- tail-recursion, this easily crashes with a stack overflow. */
- src = oldcdr;
- goto again;
- }
+ && (scm_is_pair (oldcdr) || oldcdr == SCM_EOL))
+ {
+ /*
+ This is tail-recursion, ie.
+
+ return do_break_substution (cdr);
+
+ We don't want to rely on the compiler to do this. Without
+ tail-recursion, this easily crashes with a stack overflow. */
+ src = oldcdr;
+ goto again;
+ }
return scm_cons (newcar, do_break_substitution (oldcdr));
}
return src;
}
-
/*
Perform substitution on GROB_LIST using a constant amount of stack.
- */
-SCM
-substitute_grob_list (SCM grob_list)
+*/
+vector<Grob *> temporary_substition_array;
+void
+substitute_grob_array (Grob_array *grob_arr, Grob_array *new_arr)
{
- SCM l = SCM_EOL;
- SCM * tail = &l;
-
- for (SCM s = grob_list; gh_pair_p (s); s = gh_cdr (s))
+ vector<Grob *> &old_grobs (grob_arr->array_reference ());
+ vector<Grob *> *new_grobs (new_arr == grob_arr
+ ? & temporary_substition_array
+ : &new_arr->array_reference ());
+
+ new_grobs->resize (old_grobs.size ());
+ Grob **array = (Grob **) new_grobs->data ();
+ Grob **ptr = array;
+ for (vsize i = 0; i < old_grobs.size (); i++)
{
- SCM n= substitute_grob (unsmob_grob (gh_car (s)));
-
- if (n != SCM_UNDEFINED)
- {
- *tail = gh_cons (n, SCM_EOL);
- tail = SCM_CDRLOC(*tail);
- }
+ Grob *orig = old_grobs[i];
+ Grob *new_grob = substitute_grob (orig);
+ if (new_grob)
+ *ptr++ = new_grob;
}
- return l;
+ new_grobs->resize (ptr - array);
+ if (new_arr == grob_arr)
+ new_arr->set_array (*new_grobs);
}
/*
We don't do
forall b in broken-childs:
- forall p in properties:
- forall g in p (if grob-list):
- g := substitute (g)
+ forall p in properties:
+ forall g in p (if grob-list):
+ g := substitute (g)
- for spanners since this is O(SYSTEMCOUNT * GROBCOUNT), and SYSTEMCOUNT =
- O(GROBCOUNT), we have a quadratic algorithm. --for a single spanner
+ for spanners since this is O (SYSTEMCOUNT * GROBCOUNT), and SYSTEMCOUNT =
+ O (GROBCOUNT), we have a quadratic algorithm. --for a single spanner
This is problematic: with large (long) scores, the costs can be
significant; especially all-elements in System, can become huge. For
a typical 50 page score, it requires running through a 100k list 50
times.
-
+
Instead:
forall p in properties:
- (if grob list)
+ (if grob list)
- put grob list in array,
+ put grob list in array,
- reorder array so spanners are separate -- O(grobcount)
-
- find first and last indexes of grobs on a specific system
+ reorder array so spanners are separate -- O (grobcount)
- for items this is O(itemcount)
+ find first and last indexes of grobs on a specific system
- for spanners this is O(sum-of spanner-system-ranges)
+ for items this is O (itemcount)
- perform the substitution O(sum-of spanner-system-ranges)
+ for spanners this is O (sum-of spanner-system-ranges)
+
+ perform the substitution O (sum-of spanner-system-ranges)
The complexity is harder to determine, but should be subquadratic;
For the situation above, we run through the entire 100k list once,
and also (more or less) once through the item part of the 100k (say
- 98k elements) of the list.
+ 98k elements) of the list.
-These timings were measured without -O2.
+ These timings were measured without -O2.
- lehre, before 28.98 seconds, after: 27.91 seconds, 3.5 %.
+ lehre, before 28.98 seconds, after: 27.91 seconds, 3.5 %.
coriolan, before 2:30, after: 1:59. Increase of 20%.
moz-k498-p1, before 24.10, after: 19.790s, Increase of 18%
-
-
*/
-
Slice
-spanner_system_range (Spanner* sp)
+spanner_system_range (Spanner *sp)
{
Slice rv;
-
- if (System*st = sp->get_system())
- {
- rv = Slice (st->rank_, st->rank_);
- }
- else
+
+ if (System *st = sp->get_system ())
+ rv = Slice (st->get_rank (), st->get_rank ());
+ else
{
- if (sp->broken_intos_.size())
- rv = Slice (sp->broken_intos_[0]->get_system()->rank_,
- sp->broken_intos_.top()->get_system()->rank_);
+ if (sp->broken_intos_.size ())
+ rv = Slice (sp->broken_intos_[0]->get_system ()->get_rank (),
+ sp->broken_intos_.back ()->get_system ()->get_rank ());
}
return rv;
}
Slice
-item_system_range (Item* it)
+item_system_range (Item *it)
{
- if (System*st= it->get_system())
- return Slice (st->rank_, st->rank_);
+ if (System *st = it->get_system ())
+ return Slice (st->get_rank (), st->get_rank ());
Slice sr;
- Direction d = LEFT;
- do
+ for (LEFT_and_RIGHT (d))
{
Item *bi = it->find_prebroken_piece (d);
- if (bi && bi->get_system())
- sr.add_point (bi->get_system()->rank_);
+ if (bi && bi->get_system ())
+ sr.add_point (bi->get_system ()->get_rank ());
}
- while (flip(&d)!=LEFT);
-
+
return sr;
}
Slice
grob_system_range (Grob *g)
{
- if (Spanner*s = dynamic_cast<Spanner*>(g))
- return spanner_system_range (s);
- else if (Item* it = dynamic_cast<Item*> (g))
- return item_system_range (it);
- else
- return Slice();
+ if (Spanner *s = dynamic_cast<Spanner *> (g))
+ return spanner_system_range (s);
+ else if (Item *it = dynamic_cast<Item *> (g))
+ return item_system_range (it);
+ else
+ return Slice ();
}
-
-
struct Substitution_entry
{
- Grob * grob_;
+ Grob *grob_;
+
+ /* Assumption: we have less than 32k paper columns. */
short left_;
short right_;
-
- void set (Grob*g, Slice sr)
+
+ void set (Grob *g, Slice sr)
{
grob_ = g;
/*
*/
if (sr.is_empty ())
{
- /*
- overflow if we don't treat this specially.
- */
- left_ = 1;
- right_ = -1;
+ /*
+ overflow if we don't treat this specially.
+ */
+ left_ = 1;
+ right_ = -1;
}
else
{
- left_ = sr[LEFT];
- right_ = sr[RIGHT];
+ left_ = (short) sr[LEFT];
+ right_ = (short) sr[RIGHT];
}
}
- Substitution_entry()
+ Substitution_entry ()
{
- grob_ =0;
+ grob_ = 0;
left_ = right_ = -2;
}
-
- int length () { return right_ - left_ ; }
+
+ int length () { return right_ - left_; }
static int
- item_compare (void const * a , void const * b)
+ item_compare (void const *a, void const *b)
{
- return ((Substitution_entry*)a)->left_ -
- ((Substitution_entry*)b)->left_;
+ return ((Substitution_entry *)a)->left_
+ - ((Substitution_entry *)b)->left_;
}
-
+
static int
- spanner_compare (void const * a , void const * b)
+ spanner_compare (void const *a, void const *b)
{
- return ((Substitution_entry*)a)->length() -
- ((Substitution_entry*)b)->length ();
+ return ((Substitution_entry *)a)->length ()
+ - ((Substitution_entry *)b)->length ();
}
};
-
-
bool
-Spanner::fast_fubstitute_grob_list (SCM sym,
- SCM grob_list)
+Spanner::fast_substitute_grob_array (SCM sym,
+ Grob_array *grob_array)
{
- int len = scm_ilength (grob_list);
+ int len = grob_array->size ();
- /*
- Only do this complicated thing for large lists. This has the added
- advantage that we won't screw up the ordering for elements in
- alignments (which typically don't have more than 10 grobs.)
- */
-
- if (len < 300)
+ if (grob_array->ordered ())
return false;
+ if (len < 15)
+ return false;
/*
- TODO : should not free it some time?
- */
- static Substitution_entry * vec;
+ We store items on the left, spanners on the right in this vector.
+
+ FIXME: will not multithread.
+ */
+ static Substitution_entry *vec;
static int vec_room;
if (vec_room < len)
{
- vec = (Substitution_entry*) realloc (vec, sizeof (Substitution_entry) * len);
+ vec = (Substitution_entry *) realloc (vec, sizeof (Substitution_entry) * len);
vec_room = len;
}
-
+
Slice system_range = spanner_system_range (this);
- Array<Slice> it_indices;
- Array<Slice> sp_indices;
- for (int i = 0; i <= system_range.length (); i++)
- {
- it_indices.push (Slice (len, 0));
- sp_indices.push (Slice (len, 0));
- }
-
-
- int sp_index = len;
- int it_index = 0;
- for (SCM s = grob_list; gh_pair_p (s); s = gh_cdr (s))
+ int spanner_index = len;
+ int item_index = 0;
+
+ for (vsize i = 0; i < grob_array->size (); i++)
{
- Grob * g = unsmob_grob (gh_car(s));
+ Grob *g = grob_array->grob (i);
Slice sr = grob_system_range (g);
sr.intersect (system_range);
int idx = 0;
- if (dynamic_cast<Spanner*>(g))
- {
- idx =--sp_index;
- }
- else if (dynamic_cast<Item*> (g))
- {
- idx = it_index++;
- }
+ if (dynamic_cast<Spanner *> (g))
+ idx = --spanner_index;
+ else if (dynamic_cast<Item *> (g))
+ idx = item_index++;
vec[idx].set (g, sr);
}
- qsort (vec, it_index,
- sizeof (Substitution_entry), &Substitution_entry::item_compare);
-
- Array<Slice> *arrs[] = {
- &it_indices, &sp_indices
- };
-
- for (int i = 0; i < it_index ;i++)
- {
- for (int j = vec[i].left_; j <= vec[i].right_; j++)
- {
- it_indices[j - system_range[LEFT]].add_point (i);
- }
- }
-
- /*
- sorting vec[sp_index.. len]
- is a waste of time -- the staff-spanners screw up the
- ordering, since they go across the entire score.
- */
- for (int i = sp_indices.size(); i--;)
- sp_indices[i]= Slice (sp_index, len-1);
-
-
- assert (it_index <= sp_index);
-
- assert (broken_intos_.size () == system_range.length () + 1);
- for (int i = 0; i < broken_intos_.size(); i++)
+ qsort (vec, item_index,
+ sizeof (Substitution_entry), &Substitution_entry::item_compare);
+
+ vector<Slice> item_indices;
+ vector<Slice> spanner_indices;
+ for (int i = 0; i <= system_range.length (); i++)
+ {
+ item_indices.push_back (Slice (len, 0));
+ spanner_indices.push_back (Slice (len, 0));
+ }
+
+ vector<Slice> *arrs[]
+ =
+ {
+ &item_indices, &spanner_indices
+ };
+
+ for (int i = 0; i < item_index; i++)
+ {
+ for (int j = vec[i].left_; j <= vec[i].right_; j++)
+ item_indices[j - system_range[LEFT]].add_point (i);
+ }
+
+ /*
+ sorting vec[spanner_index.. len]
+ is a waste of time -- the staff-spanners screw up the
+ ordering, since they go across the entire score.
+ */
+ for (vsize i = spanner_indices.size (); i--;)
+ spanner_indices[i] = Slice (spanner_index, len - 1);
+
+ assert (item_index <= spanner_index);
+
+ assert ((broken_intos_.size () == (vsize)system_range.length () + 1)
+ || (broken_intos_.empty () && system_range.length () == 0));
+ for (vsize i = 0; i < broken_intos_.size (); i++)
{
- Grob * sc = broken_intos_[i];
- System * l = sc->get_system ();
- set_break_subsititution (l ? l->self_scm(): SCM_UNDEFINED);
-
- SCM newval = SCM_EOL;
- SCM * tail = &newval;
-
- for (int k = 0; k < 2;k++)
- for (int j = (*arrs[k])[i][LEFT]; j <= (*arrs[k])[i][RIGHT]; j++)
- {
- SCM subs =substitute_grob (vec[j].grob_);
- if (subs!= SCM_UNDEFINED)
- {
- *tail = scm_cons (subs, SCM_EOL);
-
- tail = SCM_CDRLOC(*tail);
- }
-
- }
-
+ Grob *sc = broken_intos_[i];
+ System *l = sc->get_system ();
+ set_break_subsititution (l ? l->self_scm () : SCM_UNDEFINED);
+
+ SCM newval = sc->internal_get_object (sym);
+ if (!unsmob_grob_array (newval))
+ {
+ newval = Grob_array::make_array ();
+ sc->set_object (sym, newval);
+ }
+
+ Grob_array *new_array = unsmob_grob_array (newval);
+ for (int k = 0; k < 2; k++)
+ for (int j = (*arrs[k])[i][LEFT]; j <= (*arrs[k])[i][RIGHT]; j++)
+ {
+ Grob *substituted = substitute_grob (vec[j].grob_);
+ if (substituted)
+ new_array->add (substituted);
+ }
+
#ifdef PARANOIA
-
printf ("%d (%d), sp %d (%d)\n",
- it_indices [i].length (), it_index,
- sp_indices[i].length() , len -sp_index);
-
+ item_indices [i].length (), item_index,
+ spanner_indices[i].length (), len - spanner_index);
+
{
- SCM l1 =substitute_grob_list (grob_list);
- assert (scm_ilength (l1) == scm_ilength (newval));
+ SCM l1 = substitute_grob_list (grob_list);
+ assert (scm_ilength (l1) == scm_ilength (newval));
}
#endif
-
- sc->mutable_property_alist_ = scm_acons (sym, newval,
- sc->mutable_property_alist_);
}
return true;
}
-
-SCM grob_list_p;
-
/*
Although the substitution can be written as
we have a special function here: we want to invoke a special
function for lists of grobs. These can be very long for large
- orchestral scores (eg. 1M elements). do_break_substitution() can
+ orchestral scores (eg. 1M elements). do_break_substitution () can
recurse many levels, taking lots of stack space.
This becomes a problem if lily is linked against guile with
pthreads. pthreads impose small limits on the stack size.
- */
+*/
SCM
-substitute_mutable_property_alist (SCM alist)
+substitute_object_alist (SCM alist, SCM dest)
{
- if (!grob_list_p)
- grob_list_p = scm_c_eval_string ("grob-list?");
-
SCM l = SCM_EOL;
SCM *tail = &l;
- for (SCM s = alist; gh_pair_p (s); s = gh_cdr (s))
+ for (SCM s = alist; scm_is_pair (s); s = scm_cdr (s))
{
- SCM sym = gh_caar(s);
- SCM val = gh_cdar(s);
- SCM type = scm_object_property (sym, ly_symbol2scm ("backend-type?"));
-
- if (type == grob_list_p)
- val = substitute_grob_list (val);
+ SCM sym = scm_caar (s);
+ SCM val = scm_cdar (s);
+
+ if (Grob_array *orig = unsmob_grob_array (val))
+ {
+ SCM handle = scm_assq (sym, dest);
+ SCM newval
+ = (scm_is_pair (handle))
+ ? scm_cdr (handle)
+ : Grob_array::make_array ();
+
+ Grob_array *new_arr = unsmob_grob_array (newval);
+
+ substitute_grob_array (orig, new_arr);
+ val = newval;
+ }
else
- val = do_break_substitution (val);
-
- *tail = gh_cons (gh_cons (sym, val), SCM_EOL);
- tail = SCM_CDRLOC (*tail);
+ val = do_break_substitution (val);
+
+ if (val != SCM_UNDEFINED)
+ {
+ /*
+ for ly:grob? properties, SCM_UNDEFINED could leak out
+ through ly:grob-property
+ */
+ *tail = scm_cons (scm_cons (sym, val), SCM_EOL);
+ tail = SCM_CDRLOC (*tail);
+ }
}
-
return l;
}
-
void
Spanner::substitute_one_mutable_property (SCM sym,
- SCM val)
+ SCM val)
{
- SCM type = scm_object_property (sym, ly_symbol2scm ("backend-type?"));
- Spanner*s = this;
-
+ Spanner *s = this;
+
bool fast_done = false;
- if (type == grob_list_p)
- fast_done = s->fast_fubstitute_grob_list (sym, val);
+ Grob_array *grob_array = unsmob_grob_array (val);
+ if (grob_array)
+ fast_done = s->fast_substitute_grob_array (sym, grob_array);
- if (!fast_done)
- for (int i = 0; i < s->broken_intos_ .size (); i++)
+ if (!fast_done)
+ for (vsize i = 0; i < s->broken_intos_.size (); i++)
{
- Grob * sc = s->broken_intos_[i];
- System * l = sc->get_system ();
- set_break_subsititution (l ? l->self_scm () : SCM_UNDEFINED);
-
- SCM newval = (type == grob_list_p)
- ? substitute_grob_list (val)
- : do_break_substitution(val);
-
- sc->mutable_property_alist_ = scm_cons (scm_cons (sym, newval),
- sc->mutable_property_alist_);
+ Grob *sc = s->broken_intos_[i];
+ System *l = sc->get_system ();
+ set_break_subsititution (l ? l->self_scm () : SCM_UNDEFINED);
+
+ if (grob_array)
+ {
+ SCM newval = sc->internal_get_object (sym);
+ if (!unsmob_grob_array (newval))
+ {
+ newval = Grob_array::make_array ();
+ sc->set_object (sym, newval);
+ }
+ substitute_grob_array (grob_array, unsmob_grob_array (newval));
+ }
+ else
+ {
+ SCM newval = do_break_substitution (val);
+ sc->set_object (sym, newval);
+ }
}
}
-
+
+void
+Grob::substitute_object_links (SCM crit, SCM orig)
+{
+ set_break_subsititution (crit);
+ object_alist_ = substitute_object_alist (orig, object_alist_);
+}
projects / lilypond.git / blobdiff