X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fmusic.cc;h=b5964c87fc64af03aec4f59784edf7b71fe2897a;hb=9ed050a94b75be5c4b040ea9506434e8db7e128d;hp=e3272b1989b56acbfdaefefcf99e88a4cf6a1b7b;hpb=94189ec2b8da6d7e89dc619c646a927adead9b19;p=lilypond.git diff --git a/lily/music.cc b/lily/music.cc index e3272b1989..b5964c87fc 100644 --- a/lily/music.cc +++ b/lily/music.cc @@ -3,259 +3,390 @@ source file of the GNU LilyPond music typesetter - (c) 1997--2001 Han-Wen Nienhuys + (c) 1997--2004 Han-Wen Nienhuys */ +#include "main.hh" #include "input-smob.hh" #include "music.hh" #include "music-list.hh" -#include "debug.hh" +#include "warn.hh" #include "pitch.hh" #include "ly-smobs.icc" -SCM -ly_deep_mus_copy (SCM m) + + +bool +Music::internal_is_music_type (SCM k)const { - if (unsmob_music (m)) + SCM ifs = get_property ("types"); + + return scm_memq (k, ifs) != SCM_BOOL_F; +} + +String +Music::name () const +{ + SCM nm = get_property ("name"); + if (gh_symbol_p (nm)) { - SCM ss = unsmob_music (m)->clone ()->self_scm (); - scm_unprotect_object (ss); - return ss; + return ly_symbol2string (nm); } - else if (gh_pair_p (m)) + else { - return gh_cons (ly_deep_mus_copy (gh_car (m)), ly_deep_mus_copy (gh_cdr (m))); + return classname (this); } - else - return m; } + Music::Music (Music const &m) { immutable_property_alist_ = m.immutable_property_alist_; - SCM c =ly_deep_mus_copy (m.mutable_property_alist_); - mutable_property_alist_ = c; + mutable_property_alist_ = SCM_EOL; + self_scm_ = SCM_EOL; + /* + First we smobify_self, then we copy over the stuff. If we don't, + stack vars that hold the copy might be optimized away, meaning + that they won't be protected from GC. + */ smobify_self (); - + mutable_property_alist_ = ly_deep_mus_copy (m.mutable_property_alist_); set_spot (*m.origin ()); } - -Music::Music(SCM l) +Music::Music () { - immutable_property_alist_ = l; + self_scm_ = SCM_EOL; + immutable_property_alist_ = SCM_EOL; mutable_property_alist_ = SCM_EOL; smobify_self (); } +SCM +Music::get_property_alist (bool m) const +{ + return (m) ? mutable_property_alist_ : immutable_property_alist_; +} + SCM Music::mark_smob (SCM m) { - Music * mus = (Music *)SCM_CELL_WORD_1(m); + Music * mus = (Music *)SCM_CELL_WORD_1 (m); scm_gc_mark (mus->immutable_property_alist_); scm_gc_mark (mus->mutable_property_alist_); return SCM_EOL; } -void -Music::compress (Moment) -{ -} - - - Moment -Music::length_mom () const +Music::get_length () const { - SCM l = get_mus_property ("length"); + SCM l = get_property ("length"); if (unsmob_moment (l)) - return *unsmob_moment(l); + return *unsmob_moment (l); else if (gh_procedure_p (l)) { - SCM res = gh_call1(l, self_scm( )); - return *unsmob_moment(res); + SCM res = gh_call1 (l, self_scm ()); + return *unsmob_moment (res); } return 0; } +Moment +Music::start_mom () const +{ + SCM l = get_property ("start-moment-function"); + if (gh_procedure_p (l)) + { + SCM res = gh_call1 (l, self_scm ()); + return *unsmob_moment (res); + } + + Moment m ; + return m; +} + void print_alist (SCM a, SCM port) { - for (SCM s = a; gh_pair_p (s); s = gh_cdr (s)) + /* + SCM_EOL -> catch malformed lists. + */ + for (SCM s = a; gh_pair_p (s); s = ly_cdr (s)) { - scm_display (gh_caar (s), port); + scm_display (ly_caar (s), port); scm_puts (" = ", port); - scm_write (gh_cdar (s), port); + scm_write (ly_cdar (s), port); scm_puts ("\n", port); } } int -Music::print_smob(SCM s, SCM p, scm_print_state*) +Music::print_smob (SCM s, SCM p, scm_print_state*) { scm_puts ("#mutable_property_alist_, p); - print_alist (m->immutable_property_alist_, p); + SCM nm = m->get_property ("name"); + if (gh_symbol_p (nm) || gh_string_p (nm)) + { + scm_display (nm, p); + } + else + { + scm_puts (classname (m),p); + } + /* + Printing properties takes a lot of time, especially during backtraces. + For inspecting, it is better to explicitly use an inspection + function. + */ + scm_puts (">",p); return 1; } Pitch -Music::to_relative_octave (Pitch m) +Music::to_relative_octave (Pitch p) { - return m; -} + SCM elt = get_property ("element"); + + if (Music* m = unsmob_music (elt)) + p = m->to_relative_octave (p); + p = music_list_to_relative (get_property ("elements"), + p, false); + return p; +} void -Music::transpose (Pitch ) +Music::compress (Moment factor) { -} + SCM elt = get_property ("element"); -IMPLEMENT_TYPE_P(Music, "music?"); -IMPLEMENT_UNSMOB(Music,music); -IMPLEMENT_SMOBS(Music); -IMPLEMENT_DEFAULT_EQUAL_P(Music); + if (Music* m = unsmob_music (elt)) + m->compress (factor); -/****************************/ + compress_music_list (get_property ("elements"), factor); +} -SCM -Music::get_mus_property (const char *nm) const + +void +Music::transpose (Pitch delta) { - SCM sym = ly_symbol2scm (nm); - return get_mus_property (sym); + SCM elt = get_property ("element"); + + if (Music* m = unsmob_music (elt)) + m->transpose (delta); + + transpose_music_list (get_property ("elements"), delta); } + +IMPLEMENT_TYPE_P (Music, "ly:music?"); + +IMPLEMENT_SMOBS (Music); +IMPLEMENT_DEFAULT_EQUAL_P (Music); + +/****************************/ + SCM -Music::get_mus_property (SCM sym) const +Music::internal_get_property (SCM sym) const { - SCM s = scm_sloppy_assq(sym, mutable_property_alist_); + SCM s = scm_sloppy_assq (sym, mutable_property_alist_); if (s != SCM_BOOL_F) - return gh_cdr (s); + return ly_cdr (s); s = scm_sloppy_assq (sym, immutable_property_alist_); - return (s == SCM_BOOL_F) ? SCM_EOL : gh_cdr (s); + return (s == SCM_BOOL_F) ? SCM_EOL : ly_cdr (s); } -/* - Remove the value associated with KEY, and return it. The result is - that a next call will yield SCM_EOL (and not the underlying - `basic' property. -*/ -SCM -Music::remove_mus_property (const char* key) +void +Music::internal_set_property (SCM s, SCM v) { - SCM val = get_mus_property (key); - if (val != SCM_EOL) - set_mus_property (key, SCM_EOL); - return val; + if (internal_type_checking_global_b) + if (!type_check_assignment (s, v, ly_symbol2scm ("music-type?"))) + abort (); + + mutable_property_alist_ = scm_assq_set_x (mutable_property_alist_, s, v); } +#include "main.hh" + void -Music::set_mus_property (const char* k, SCM v) +Music::set_spot (Input ip) { - SCM s = ly_symbol2scm (k); - set_mus_property (s, v); + set_property ("origin", make_input (ip)); } -void -Music::set_immutable_mus_property (const char*k, SCM v) +Input* +Music::origin () const { - SCM s = ly_symbol2scm (k); - set_immutable_mus_property (s, v); + Input *ip = unsmob_input (get_property ("origin")); + return ip ? ip : & dummy_input_global; } -void -Music::set_immutable_mus_property (SCM s, SCM v) + +Music::~Music () { - immutable_property_alist_ = gh_cons (gh_cons (s,v), mutable_property_alist_); - mutable_property_alist_ = scm_assq_remove_x (mutable_property_alist_, s); + } -void -Music::set_mus_property (SCM s, SCM v) + +LY_DEFINE(ly_music_length, + "ly:music-length", 1, 0, 0, (SCM mus), + "Get the length (in musical time) of music expression @var{mus}.") { - mutable_property_alist_ = scm_assq_set_x (mutable_property_alist_, s, v); + Music * sc = unsmob_music (mus); + SCM_ASSERT_TYPE(sc, mus, SCM_ARG1, __FUNCTION__, "music"); + return sc->get_length().smobbed_copy(); } -void -Music::set_spot (Input ip) +LY_DEFINE(ly_music_property, + "ly:music-property", 2, 0, 0, (SCM mus, SCM sym), + "Get the property @var{sym} of music expression @var{mus}.\n" + "If @var{sym} is undefined, return @code{'()}.\n" ) { - set_mus_property ("origin", make_input (ip)); + Music * sc = unsmob_music (mus); + SCM_ASSERT_TYPE(sc, mus, SCM_ARG1, __FUNCTION__, "music"); + SCM_ASSERT_TYPE(gh_symbol_p (sym), sym, SCM_ARG2, __FUNCTION__, "symbol"); + + return sc->internal_get_property (sym); } +LY_DEFINE(ly_music_set_property, + "ly:music-set-property!", 3, 0, 0, + (SCM mus, SCM sym, SCM val), + "Set property @var{sym} in music expression @var{mus} to @var{val}.") +{ + Music * sc = unsmob_music (mus); + SCM_ASSERT_TYPE(sc, mus, SCM_ARG1, __FUNCTION__, "music"); + SCM_ASSERT_TYPE(gh_symbol_p (sym), sym, SCM_ARG2, __FUNCTION__, "symbol"); + + bool ok = type_check_assignment (sym, val, ly_symbol2scm ("music-type?")); + if (ok) + { + sc->internal_set_property (sym, val); + } + + return SCM_UNSPECIFIED; +} -Input* -Music::origin () const +LY_DEFINE(ly_music_name, "ly:music-name", 1, 0, 0, + (SCM mus), + "Return the name of @var{music}.") { - Input *ip = unsmob_input (get_mus_property ("origin")); - return ip ? ip : & dummy_input_global; + Music * m = unsmob_music (mus); + SCM_ASSERT_TYPE(m, mus, SCM_ARG1, __FUNCTION__ ,"music"); + + const char * nm = classname (m); + return scm_makfrom0str (nm); } +// to do property args +LY_DEFINE(ly_extended_make_music, + "ly:make-bare-music", 2, 0, 0, (SCM type, SCM props), + "Make a C++ music object of type @var{type}, initialize with\n" + "@var{props}. \n\n" + "" + "This function is for internal use, and is only called by " + "@code{make-music}, which is the preferred interface " + "for creating music objects. " + ) +{ + SCM_ASSERT_TYPE(gh_string_p (type), type, SCM_ARG1, __FUNCTION__, "string"); + SCM s = make_music (ly_scm2string (type))->self_scm (); + unsmob_music (s)->immutable_property_alist_ = props; + scm_gc_unprotect_object (s); + return s; +} -Music::~Music () +// to do property args +LY_DEFINE(ly_get_mutable_properties, + "ly:get-mutable-properties", 1, 0, 0, (SCM mus), + "Return an alist containing the mutable properties of @var{mus}.\n" + "The immutable properties are not available; they should be initialized\n" + "by the @code{make-music} function.\n" + ) { - + Music *m = unsmob_music (mus); + SCM_ASSERT_TYPE(m, mus, SCM_ARG1, __FUNCTION__, "music"); + + return m->get_property_alist (true); } -SCM -ly_get_mus_property (SCM mus, SCM sym) +LY_DEFINE(ly_music_list_p,"ly:music-list?", 1, 0, 0, + (SCM l),"Type predicate: return true if @var{l} is a list of music objects.") { - Music * sc = unsmob_music (mus); - - if (sc) - { - return sc->get_mus_property (sym); - } - else + if (scm_list_p (l) != SCM_BOOL_T) + return SCM_BOOL_F; + + while (gh_pair_p (l)) { - warning (_("ly_get_mus_property (): Not a Music")); - scm_write (mus, scm_current_error_port ()); + if (!unsmob_music (gh_car (l))) + return SCM_BOOL_F; + l =gh_cdr (l); } - return SCM_EOL; + return SCM_BOOL_T; } +ADD_MUSIC(Music); -SCM -ly_set_mus_property (SCM mus, SCM sym, SCM val) -{ - Music * sc = unsmob_music (mus); - if (!gh_symbol_p (sym)) +LY_DEFINE(ly_deep_mus_copy, + "ly:music-deep-copy", 1,0,0, (SCM m), + "Copy @var{m} and all sub expressions of @var{m}") +{ + if (unsmob_music (m)) { - warning (_("ly_set_mus_property (): Not a symbol")); - scm_write (mus, scm_current_error_port ()); - - return SCM_UNSPECIFIED; + SCM ss = unsmob_music (m)->clone ()->self_scm (); + scm_gc_unprotect_object (ss); + return ss; } - - if (sc) + else if (gh_pair_p (m)) { - sc->set_mus_property (sym, val); + return gh_cons (ly_deep_mus_copy (ly_car (m)), ly_deep_mus_copy (ly_cdr (m))); } else - { - warning (_("ly_set_mus_property (): not of type Music")); - scm_write (mus, scm_current_error_port ()); - } + return m; +} - return SCM_UNSPECIFIED; +LY_DEFINE(ly_music_transpose, + "ly:music-transpose", 2,0,0, (SCM m, SCM p), + "Transpose @var{m} such that central C is mapped to @var{p}. " +"Return @var{m}.") +{ + Music * sc = unsmob_music (m); + Pitch * sp = unsmob_pitch (p); + SCM_ASSERT_TYPE(sc, m, SCM_ARG1, __FUNCTION__, "music"); + SCM_ASSERT_TYPE(sp, p, SCM_ARG2, __FUNCTION__, "pitch"); + + sc->transpose (*sp); + return sc->self_scm(); // SCM_UNDEFINED ? } -static void -init_functions () + +SCM make_music_proc; + + +Music* +make_music_by_name (SCM sym) { - scm_make_gsubr ("ly-get-mus-property", 2, 0, 0, (Scheme_function_unknown)ly_get_mus_property); - scm_make_gsubr ("ly-set-mus-property", 3, 0, 0, (Scheme_function_unknown)ly_set_mus_property); + if (!make_music_proc) + make_music_proc = scm_primitive_eval (ly_symbol2scm ("make-music")); + + SCM rv = scm_call_1 (make_music_proc, sym); + + /* + UGH. + */ + scm_gc_protect_object (rv); + return unsmob_music (rv); } -ADD_SCM_INIT_FUNC(musicscm,init_functions); +