X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=TODO;h=92ee0c62c75744b04c5a67ebb9824a9be794730a;hb=7754ac4c2bde14d03af8a85d46c6a9e26fa0734b;hp=79b6623e1a3c665c19efa4c5c2adbdfd60f97224;hpb=ae9dfbb452eff2e47f1330854a12d73161fcb677;p=lilypond.git diff --git a/TODO b/TODO index 79b6623e1a..92ee0c62c7 100644 --- a/TODO +++ b/TODO @@ -1,57 +1,203 @@ -Features you cannot find in the doco as working, should be mentioned here. - - -This is an assorted collection of stuff that will be done, might be -done, or is an idea that I want to think about - -Most of the items are marked in the code as well, with full explanation. -grep for TODO and ugh/ugr/urg - - -BUGS: - - - * egcs-1.1 -O2 -finline-functions causes crash - - - * formatting of input stuff. - - * use real RTTI iso access_Stuff. - - * \notes{ a \< b \cr } vs \notes{ a \< b \! } - - * if possible, it might be nice for a warning to appear if someone does - \translator with no name and without assigning it to an - identifier. - - * space after bars? - - * [/3 c8 c16 c c c]/1 - - * I see that \prallprall and \prallmordent are identical. I think this is a - mistake, that \prallprall should not have the vertical line. - This can be fixed by removing the line - draw_mordent(twidth-0.5toverlap); - from the definition of \prallprall in mf/feta-slag.mf (see below) - - * fix singleStaffBracket - - * repeat bars: need distance after ":|" and before "|:" - - * The time signature warnings still remain, will be fixed later. - - Summary of minor spelling irregularities: - - capitalization/use of underscores in property names - - * fix Score.skipBars - - * repeat bars: need distance after ":|" and before "|:" - - * \shape 1st dim skipped? - - * fix marks/barnumbers/marginal notes - - * broken scripts: +-*-outline-layout:(2 (-1 -1 0 :) 0);outline-stylish-prefixes:nil -*- + +* GNU LilyPond TODO +Features you cannot find in the doco as working, should be +mentioned here. This is an assorted collection of stuff that will be +done, might be done, or is an idea that I want to think about + +Most of the items are marked in the code as well +Grep for TODO and ugh/ugr/urg. + +.* BUGS +. * junk separate mudela versioning. +. * PostScript +. * header for PS enteredby = "bla " +. * ps/lily.ps see comments. +. * devise standard for functioning of Vertical_align_element. +. * midi key. +. * Repeats +. * unfold broken: +. * without alternatives: repeat unfold 4 { a b c d } +. * count > alternatives: repeat unfold 79 { a b c d } +\alternative { { c c c c } { d d d d } } +. * kind of 'initial property' iso fold/volta(semi)/unfold strings +. * fix singleStaffBracket +. * declare performers in \midi +. * fix MIDI +. * \shape 1st dim skipped? +. * turn slope-damping on/off +. * tremolo stuff +. * We need feta-din*.mf files for more sizes than 10. +. * fix dynamics decently, ie. use kerning & ligatures. +. * dots & rest collisions? +. * mudela-book.py +. * fix \mudelafile{} to have decent functionality +. * P.P.S. It can be cool in mudela-book to distinguish in +pre,postMudelaExample, whether MudelaExample is epsed or not: ( if +this fragment is floating eps, than 1, otherwise 2). say +preMudelaExample[eps]{}, and change it in document body sometimes. +. * use less RE's +. * slurs colllide with lyrics. +. * Is there any reasonable way to do this: I would like to have one file +that can generate the same tune in two different modes without having +to go through and rewrite all the music in the other mode. + +Long lyrics don't get a space at the end. They just run right up +against the next lyric. (I don't think this used to be the case.) + +Lyrics and scripts collide. + +\key b; \time 4/4; looks bad. The clef and time signature are too close. + +restStyle=mensural doesn't seem to work (lots of characters not found +for rests.fly) +. * Phrasing: Indicating the textual underlay of a piece, or +otherwise dividing a piece into phrases. + +There are distinct ways of specifying the first two (although at +present, they're not properly distinguished) but no distinct way to +specify the third. Should there be? +. * rest collision minimum dist. +. * 1. is there a "no key signature mode" for lily yet so that i can just +enter the notes without worrying about it instead of having to +remember to put a "!" after each accidental? + +a note with a circle after it, meaning: + + note + circle = note + 1/4 of its length + + the circle is like a dot that's not filled in. for example, on + page three, the c-sharp on the second line should be a quarter with + a circle, not a quarter tied to a sixteenth. is this at all + possible with lily? +tuplets that are written as "number : note", for example + "3 : [image of a half note here]". possible? +"p+" and "p-" for dynamic markings. possible? +. * repeat engraver, gallina.ly + +. * Matanya's tips: +. * spacing for prefatory matter +. * The line length is 7.5 inch (19.05 +cm) and the height of normal size is equivalent to the traditional raster 1 +> size. (The Schott company sells Letraset sheets of musical symbols which are +> measured in raster sizes). It is agreed among most engravers I know that the +> standard size for adult readers in solo music should 70% of raster 1. Jeff's +> example was 75%, so I had to modify my file to match. + +So that makes for a staff space of 4 2/3 point. I'll add the +dimensions to the TODO file. +. * accidentals closer to note head +. * to space the staffs/staffgroups contained in the score. + +In the orchestscore.ly file, I tried: +\paper{ + \translator { + \OrchestralScoreContext + minVerticalAlign = 3.0*\staffheight; + } + \translator { + \StaffGroupContext + minVerticalAlign = 3.0*\staffheight; + } + \translator { + \StaffContext + minVerticalAlign = 3.0*\staffheight; + } +} +. * heavier beams? + +.* Cleanups needed +. * Beam +. * Stem +. * Slur +. * Rhythmic_grouping +. * Duration +. * Spring generation +. * Collision +. * Rest_collision +. * clef grav prop's + +.* TODO before 1.2 +. * Morally pure LilyPond. +. * Remove mutopia ramblings. +. * Remove non-free software links. +. * Remove meta article LilyPond. +. * break priority setting from SCM. +. * Gade score +. * remove [] in favour of auto-beamer +. * hangOnClef with non-breakable clefs. +. * Aha, the problem is the new TeX code generation for changing fonts. +> (The explanation below is mostly intended for Han-Wen and Jan) +> Before, the font was changed with macros declared separately for +> pure TeX and LaTeX, but now all the fonts are declared directly in +> the generated code using the low-level TeX commands. This circumvents +> the fontencoding mechanism of LaTeX and is a potential source of +> problems also for us users of the Latin-1 character set. +> I think it still works since the inputencoding latin1 is +> declared by ly2dvi, but it still means that e.g. an o with +> umlaut is typeset as a combination of the two symbols 'o' and +> 'umlaut' instead of as a single character, as would be the case +> if fontencoding OT1 had been used. This shouldn't give any +> difference in layout, though. One of the main argument for using +> fontencoding OT1 is for the hyphenation mechanism to work, an +> argument that's clearly irrelevant in our application. Yet we +> see the problem for August. +. * Abstraction for engravers: +. * make "in-between" engraver (Tie, Extender) +. * make wide_spanner_engraver (line_group_spanne,r staff_symbol) +. * remove Interval dim_ from Dimension_cache and rename the struct. +. * do scaled fonts generally +. * The Lilypond accidental symbols are available through the TeX macros, +\textflat, \textsharp and \textnatural defined in the init file +lilyponddefs.tex. All the symbols are defined in the files fetaXX.tex +where XX corresponds to the size. I don't know where (or even if) they +are installed but they are generated in the mf/out/ directory during the +compilation. +. * make dependencies () a virtual function. +. * one big ly2dvi input that includes *all* tests. +. * store req -> element, element -> element causes for warnings +. * include examples in RPM. +. * fix partial measures in meaningful way. +. * add scripts to bars eg. |^"bla" +. * relative mode for mi2mu +. * uniformise recent feta contributions. +. * use SCM and Molecules for {accordeon stuff, } +. * bigger and fatter 4/4 C +. * sort out directory stuff. +. * --prefix option? +. * -I option per filetype? +. * kpathsea? +. * ly2dvi/lilypond logfile. +. * fractional chord durs. +. * hang Item on Spanner +. * do --safe for PS output? +. * convert-mudela --output +. * Staff_margin (with a partial measure.) +. * fix pletvisibility properties: +. * bracket on/off/no-bracket-when-beam +. * num on/off/no-num-when-beam +. * fix: standchen. +. * junk text{sharp,flat,etc} +. * fix convert-mudela manpage +. * decimal point in \paper {} +. * { \voiceone [g''8 fis'' e''] d''4 |} + and + { \voicetwo d'4 d'2.*2/3 } spacing +. * tied notes for MIDI +. * sharp / flat on trills (in MIDI ??) +. * scm-ify \property values. +. * move class Lookup {} into scm +. * msgfmt -o check? +. * \breathmark TeX macro +. * add new glyphs to font.ly +. * formatting of input stuff. +. * \notes{ a \< b \cr } vs \notes{ a \< b \! } +. * space after bars? +. * 'hinterfleisch' before bar (e.g. wtk1-fugue2)? +. * Summary of minor spelling irregularities: +. * capitalization/use of underscores in property names +. * fix SkipBars -> skipBars +. * broken scripts: lbheel = \script { "bheel" 0 0 -1 0 0 } rbheel = \script { "bheel" 0 0 1 0 0 } lbtoe = \script { "btoe" 0 0 -1 0 0 } @@ -60,503 +206,361 @@ BUGS: rfheel = \script { "fheel" 0 0 1 0 0 } lftoe = \script { "ftoe" 0 0 -1 0 0 } rftoe = \script { "ftoe" 0 0 1 0 0 } - and also - portato= \script { "portato" 0 -1 0 1 0 } - - * MIDI spelling. - - * Align_element::padding ? - - * uniformise property names. - - * ydirection <-> yDirection - - * typo checks on property names? - - * make engraver hacking robust. - - * use streambufs and iostream +. * ly2dvi +. * bottomnote for ly2dvi +. * deps for ly2dvi +.* STUFF +. * compulsory hshift +. * Give # lines in linebreaking. +. * arrows on slurs. +. * rewrite context defs using Scheme +. * \selectmusic to cut pieces from music. +. * TODO: merge atom & molecule; make tree from molecule. +. * Align_element::padding ? +. * uniformise property names... +. * ydirection <-> yDirection +. * rather allow '_' in identifiers first (i.e. junk ^ and _), +and do y_direction? +. * typo checks on property names? +. * use streambufs and iostream to provide IO handling for TeX stream, mudela stream, data-file. - - * seriously buffer TeX output (do profile of writing .5 mb TeX file.) - - * strip EXEs before installing - - * zip target for binary windows dist (JBR) - - * text continuations - - * revise documentation - - * abbrev -> tremolo - - * junking \skip req in lyrics - - * Language: - - \type -> \context ? - - \translator -> ? - - fix \partial - - \bla {} vs \bla ; - - mix engraver hacking with music ? - - \once\property KEY = VAL - - \addtranslator, \removetranslator - - junk ^ and _ for scripts - - junk _ for lyrics. - - abstract grammar. - - * install TeX stuff into tex/generic directory. - - * /etc/profile.d support for RPM. - - * percussion note heads - - * mi2mu empty staffs. - - * include MIDI list - - * make GNU style webpages. - - * There seems to be an install error in lilypond-1.0.0. Most of the - files in the "init" directory don't get installed in the - /usr/local/share/lilypond directory. The files installed are of - the form feta*.ly. In particular init.ly doesn't get installed. - I installed the files by hand and then the system seems to work. - - * midi_instrument -> midiInstrument - - * horizontal centering of dynamics - - * \font\fontA=feta20.afm (.afm?) - - * gzip RH manpage - - * stable make/config stuff - - * stemup/stemdown; see test/updown.fly - - check examples; add \type Staff hither and thether - - * $DEPENDENCIES_OUTPUT support - - * use a fake-yodl.sh to mimick yodl when yodl is not installed - - * fix BUGs - - * fix weird behaviour when .AFMs not found. - - * Xdvi zooming ?! - gs: Error: /undefined in draw_beam - gs: Operand stack: - - * run texhash after installing .tex - - * fix vertical alignment and stafflines - - * GrandStaff needs more work -- I want a single word - `harpsichord' to the left of the grandstaff, not one on each - stave. (Organ staff -- with separate pedal -- but common - properties may be something to think about. Of course for - organ you want to be able to give stop indications on the way - through, so the \property Voice.Instrument would be a stop, - and \property GrandStaff.instrument would be PipeOrgan...) - - * make Tie_req a "command" { ~ } - - * bib ep1988 - - * revise the Score_priority_align_engraver concept. It sucks. - - * ly2xdvi, ly2ps - - * make new VoiceOne, VoiceTwo, VoiceThree contexts with -ydirection and hshift preset - - * *.yo: fix pod manpage layout legacy - - * text-items clash with stems/beams - - * --include, -I option for ly2dvi (pass on to lily) - - * fix placement of beam-less abbrev - - * \meter 3/4; +. * seriously buffer TeX output (do profile of writing .5 mb TeX file.) +. * strip EXEs before installing +. * zip target for binary windows dist (JBR) +. * junking \skip req in lyrics +. * mi2mu empty staffs. +. * use Fourier transformation for rhythmic quantisation. +. * horizontal centering of dynamics +. * $DEPENDENCIES_OUTPUT support +. * Xdvi zooming ?! Try to understand GS garbage collection. +gs: Error: /undefined in draw_beam +gs: Operand stack: +. * fix vertical alignment and stafflines +. * declaring Performers +. * *.yo: fix pod manpage layout legacy +. * text-items clash with stems/beams +. * --include, -I option for ly2dvi (pass on to lily) +. * fix placement of beam-less abbrev +. * \meter 3/4; <{\voiceone cis4. cis8 cis4 | cis4 cis cis | r1 } {\voicetwo cis,4 r r | r2. | r1 }> | } - - * try to use template iso MACRO(Type) - - - NEWS: ... Musical_pitch (analogous to Duration and Rhythmic_req) +. * Musical_pitch (analogous to Duration and Rhythmic_req) think about, analogous to pitch: * { a4 a16 } c <-- duration of c? - * c <-- duration of c? - - * \tempo 4. = 90; - - * fix audio-items (don't use (input) requests, but copy data) - - * junk My_lily_parser::abbrev_beam_type_i_ - - * make sure all ex's have a mudela-version - - * do rest-collisions for Multi_measure_rests as well. - - * split error/warning in error/warning/non_fatal_error - - * add a Duration_convert member to Duration_iter to set parameters. + * < a4 b8 > c <-- duration of c? +. * \tempo 4. = 90; +. * fix audio-items (don't use (input) requests, but copy data) +. * make sure all ex's have a mudela-version +. * do rest-collisions for Multi_measure_rests as well. +. * split error/warning in error/warning/non_fatal_error +. * add a Duration_convert member to Duration_iter to set parameters. Junk global duration settings. - - * deps for ly2dvi - - * clean up abbrev/plet/beam/abbrevbeam/duration mess in parser. - - * minimum length second part broken tie - - * en-,discouraged linebreaking: - - handle DISALLOW < penalty > FORCE - - discourage breaking of slurs - - * multibar rest - - symbol(s) - - * fix variable define/lookup parser global<->paper - - * fix title/instrument placements; see input/test/title.ly - - * <\voiceone c4. \voicetwo c4> - - * add full cello suites to web site (kom op, Maarten!) - - * Rethink Time_description - * \cadenza , \meter, \grouping should all be \properties - - * rename - - plet -> tuplet - - measure -> bar - - abbreviation-beam -> (measured/unmeasured) tremolo - - partial -> anacrouse - - * libtoolize flowerlib - - * shared lib - - * robustify Beam (in case of no stems, 32nd notes) - - * decentralised spring factory - - * move paper vars into engraver properties - - * check for groff / troff/ nroff et - - * more intelligent file searching - - use kpsepath - - make LilyPond fully relocatable - - * use kpsepath to find all TeX dirs - - configure.in - - clean-fonts.sh - - * nicen examples: - - break-up heavily-nested score blocks - - * disable spaces in TeX stuff - - * handle ^C for tmp/file creation. - - * dots & rest collisions. - - * documentation - - introduction? - - info? - - LaTeX? - - more manpages? - - * versioning for Feta - - * the warning about the negative slur/tie length appears twice - which is irritating. - - * The `3' in the meter key is a one or two pixels too thin (at 600dpi) +. * en-,discouraged linebreaking: +. * handle DISALLOW < penalty > FORCE +. * discourage breaking of slurs +. * fix variable define/lookup parser global<->paper +. * fix title/instrument placements; see input/test/title.ly +. * <\voiceone c4. \voicetwo c4> +. * add full cello suites to web site (kom op, Maarten!) +. * add mudela-book-doc source to webstie. +. * Rethink Time_description +\cadenza , \meter, \grouping should all be \properties +. * rename +. * measure -> bar +. * abbrev -> tremolo +. * abbreviation-beam -> (measured/unmeasured) tremolo +. * partial -> anacrouse +. * robustify Beam (in case of no stems, 32nd notes) +. * move paper vars into engraver properties +. * check for groff / troff/ nroff et +. * more intelligent file searching +. * disable spaces in TeX stuff +. * handle ^C for tmp/file creation. +. * make LilyPond RPM fully relocatable +. * dots & rest collisions. +. * the warning about the negative slur/tie length appears twice +which is irritating. +. * better hshift (dots, distance, head dependent) +. * clefs (AG): The "8" should appear closer to the actual clef, +touching it. +. * put errorlevel in Input class +. * junk nesting slurs +. * integrate midi-elts from mi2mu and lily? +. * distinguish between unset and empty properties. + +.* FONT +. * the bracket is ugly (wings are too parabolic, should be more circular) +. * versioning for Feta +. * rewrite dynamic signs. They're kind of spaghetti now. +. * The `3' in the meter key is a one or two pixels too thin (at 600dpi) in the middle: - - * the bracket is ugly (wings are too parabolic, should be more circular) - - * better hshift (dots, distance, head dependent) - - * clefs (AG): The "8" should appear closer to the actual clef, - touching it. - - * scoping for properties? - - { c4 - \multi 2 < { \stemup .. } { \stemdown .. } > - c2 - } - - this modifies \stem for the c2 - - * put errorlevel in Input class - - * junk nesting slurs - - * integrate midi-elts from mi2mu and lily? - - * cautionary accidental - - * score-bar-scripts - FMR: Free memory read: - * This is occurring while in: - Bar_column::do_substitute_dependency(Score_element*,Score_element*) [bar - -column.cc:29] - Score_element::unlink() [score-elem.cc:383] - Paper_score::set_breaking(const Array&) [p-score.cc: - 150] - Paper_score::calc_breaking() [p-score.cc:189] - Paper_score::process() [p-score.cc:203] - Score::run_translator(Music_output_def*) [score.cc:117] - * Reading 4 bytes from 0x65d3a0 in the heap. - * Address 0x65d3a0 is 160 bytes into a freed block at 0x65d300 of 208 bytes. - * This block was allocated from: - malloc [rtlib.o] - __builtin_new [libgcc.a] - Span_score_bar::clone()const [span-score-bar.hh:20] - Item::copy_breakable_items() [item.cc:69] - Item::do_breakable_col_processing() [item.cc:89] - Score_element::calcalute_dependencies(int,int,void(Score_element::*)()*) - [score-elem.cc:171] - * There have been 22 frees since this block was freed from: - free [rtlib.o] - __builtin_delete [libgcc.a] - Span_score_bar::~Span_score_bar() [span-score-bar.hh:18] - Paper_score::set_breaking(const Array&) [p-score.cc: - 156] - Paper_score::calc_breaking() [p-score.cc:189] - Paper_score::process() [p-score.cc:203] - Postprocessing elements... - TeX output to score-bar-scripts.tex... - - -3RD PARTY BUGS: - - * redhat (v?) graphical install bomb-out? - - * egcs-1.03 ice: stem.cc:327; should localize bug (mine's still 10K) - - * gcc 2.8.1: see ice and RESIZE_ICE - - * xdvi: PS in magnifying glass. - - * GNU diff 2.7: diff -rN does not see a new directory with empty file - - * GNU patch 2.1: if patch chokes on a - hunk, or on allegedly unsorted hunks in a diff, it may stop - without a trace of failure (create .rej file, print error or - dump core) and just ignore any further diffs. - - * glibc 2.0: - +. * design macro for penstroke with rounded endings +. * timesig C: fat yet less curved. Check out relations. +. * design decent macro for bulbed endings +. * printer dependencies. +. * versioning +. * lo-res fixes. +. * work out sizes of character fonts. +. * more symbols +. * piano pedals: Ped/* +. * maxima notehead +. * coda signs: Segno, O+ +. * glissando, arpeggio +. * lengthened trill +. * include important spacing dims in fetalog +. * scalability: use blot_diameter everywhere, make font chubbier for + small sizes. + +.* 3RD PARTY BUGS +. * GNU diff 2.7: diff -rN does not see a new directory with empty file +. * check out GCC signatures? +. * glibc 2.0: f = fopen ("/dev/null", "r") assert (feof (f)) -3RD PARTY PROJECTS: - - * GNU indent: handle C++ - - * GNU make: move hardcoded builtin rules to runtime ? - - * GNU patch - - 'double-fix' mode: ignore identical fix, rather than suggest +. * tetex: mfplain.mem +.* 3RD PARTY PROJECTS: +. * make GCC warn about ctor that leaves member vars uninitialised. +. * GNU patch +. * 'double-fix' mode: ignore identical fix, rather than suggest to revert patch direction when (more or less? exactly) the same thing is fixed - -PROJECTS - - * Scripts: - - fix position of bar number - - stack scripts in chords: +.* PROJECTS +. * Scripts: +. * stack scripts in chords: % fingering: footing: < a-4 c-2 g-1 > < c-\ltoe e-\lheel > - - script-spacing - - slur parts as a script - - stack parameterised scripts for fingering and footing: - - * convert-mudela: - - automatically add a \version if not present. - - better parsing - - make smarter - - convert-mudela -e empty.ly - - * emacs mudela-mode - - should handle block comments too. - - handle lexer modes (\header, \melodic, \lyric) etc. - - indentation - - notenames? - - fontlock: \melodic \melodic - - - * use properties for: - - plet? - - Staff_sym size - - default tempo. - - font size - - bartypes (get rid of derived Span_bar_engravers) - - cadenza mode? - - * page handling: - - PS output - - optimal pagebreaking. - - * Unicode support? -> man 7 unicode - - 16 bit Strings - - -u switch - - detect of 16/8 bit files - - examples to go with it. - - * Spring_spacer: - - write a faster Spring_spacer (without matrices if possible) - - use straight LP to find minimal "fitting force" - - relate energybound to linelen unitspace fontsize etc. - - used fixed point fp - - * \header - - output header info to MIDI too. - - * a musical dictionary. See Documentation/vocabulary-*, other - languages: - - explanations - - italian - - german - - dutch - - swedish +. * script-spacing +. * slur parts as a script +. * stack parameterised scripts for fingering and footing: + +. * convert-mudela: +. * automatically add a \version if not present. +. * better parsing +. * make smarter +. * convert-mudela -e empty.ly + +. * emacs mudela-mode +. * should handle block comments too. +. * handle lexer modes (\header, \melodic, \lyric) etc. +. * indentation +. * notenames? +. * fontlock: \melodic \melodic + +. * use properties for: +. * default tempo. +. * cadenza mode? + +. * page handling: +. * PS output +. * optimal pagebreaking. + +. * Unicode support? -> man 7 unicode +. * 16 bit Strings +. * -u switch +. * detect of 16/8 bit files +. * examples to go with it. + +. * Spring_spacer: +. * write a faster Spring_spacer (without matrices if possible) +. * relate energybound to linelen unitspace fontsize etc. +. * used fixed point fp? + +. * \header +. * output header info to MIDI too. + +. * a musical dictionary. See Documentation/vocabulary-*, other +languages: +. * explanations +. * italian +. * german +. * dutch +. * swedish .. ? - * chords - - guitar chords - - chord names - - basso continuo - - Syntax/parser - - MIDI output? - - typesetting - - * Debug logs: - - derive lily_stream, Dstream, texstream from ostream? - - indentable stream as baseclass for TeX stream, lily stream, Dstream. - - use dstream feature in mi2mu - - integrate IO checking into stream class - - * input converters - - NIFF? - - ABC? - - SMDL? - - * add to MIDI output: - - tempo change - - ornaments (and trills?) - - repeat - - slurs - - accents - - dynamics - - account for rhythmic position in measure - - etc. - - * grace notes - - make separate class for Grace_*_engravers +. * chords +. * guitar chords (fret diagrams) +. * other chord name styles (american(?) style) +. * basso continuo +. * MIDI output? + +. * Debug logs: +. * derive lily_stream, Dstream, texstream from ostream? +. * indentable stream as baseclass for TeX stream, lily stream, Dstream. +. * use dstream feature in mi2mu +. * integrate IO checking into stream class + +. * input converters +. * NIFF? +. * ABC? +. * SMDL? + +. * add to MIDI output: +. * tempo change +. * ornaments (and trills?) +. * slurs +. * accents +. * dynamics +> Would it be hard to add support for proper dynamics in MIDI output? I +> would really like to have this feature... + +To answer this, I have to give a little background. Please say so if +I am being obtuse. + +Both audio and notation elements are created decentrally, when +LilyPond says "Interpreting music ... [8][16] etc." After all +elements are created, they are processed again to calculate all +parameters. After that is done, they are dumped onto the output (the +MIDI stream or the TeX file). + +The audio and notation elements are created by objects called +performer and engraver respectively. They work by taking a chunk of +input (a so-called request), and using the request to create an audio +or notation element. + +After some processing, the engraver sends the created elements to +its enclosing notation/performance context. + +In the case of notation, engravers can also modify existing elements +created by sibling engravers. Eg. the beam-engraver will modify stems +when it creates a beam over a couple of stems. This is done in +Engraver::do_acknowledge_element () and +Engraver::do_process_acknowledged (). + +In the case of audio, there are no mechanisms to modify existing audio +elements. After the audio elements are created, they are sent directly +to the enclosing context (an instance of Performer_group_performer), +through the method Performer::play () + +Concretely spoken, for dynamics you have to write a performer +(Dynamics_performer), that will take the input requests. If I +understand correctly, every MIDI note played must have its dynamic +strength set separately. That means the the Dynamics_performer must +set the strength of every Audio_note it finds. This means that one +has to modify existing Audio items. The best way of doing this is +with a broadcast/acknowledge process. + +So the best way of handling this, is + + 1 supporting dynamic settings in Audio_note + + 2 mimicking the broadcast/acknowledge mechanism of the Engravers in + the Performers + + 3 using that mechanism to write a Dynamics_performer that will modify + any notes it finds to set appropriate strengths. + +You could also kludge this by deriving from Performer_group_performer +a performer that also sets dynamics within notes, but that is not the +elegant way to do it. + +I'd say that the work involved is not hard, but you have to be fluent +with C++ and need some insight into the working of Notation Contexts +and friends. I guess I could do it in a day or so, but if you are not +so fluent with the inner workings of LilyPond, it could take you some +more time (A few more days?). + +Please note, that I am *not* going to code this myself: my days are +valuable, and I think I have more interesting things to do than fixing +the MIDI output (I don't even have a soundcard). But I *do* want to help +you or other people with implementing this, so if you need help, don't +hesitate to ask. + +. * account for rhythmic position in measure +. * etc. + +. * grace notes +. * make separate class for Grace_*_engravers (which is at Voice_gravs level) - - make encapsulated spacing problems. - - * accidentals per Voice_group - - * Output class, handles : (smallish) - - help text /(c) notice? - - version line - - warning /errors/progress - - abort on error/warning; exit status - - quiet/ignore-version options - - logfile output - - * piano staff - - * elaborate Staff_side baseclass: - - scripts - - text - - slur start/end - - * PS - - speed up PS code. - - PS lines to .eps files - - write custom prolog - - - * Output an output format independent (ofi) typeset file; and - make ofi2 TeX, MusiXTex, Display PostScript, PostScript, - Ascii... interpreters. (difficult) - - - NIFF ? - - Common Music Notation - - PostScript output (esp. Beams, Slurs, etc) - - Move all Score_elems, into libmutype.a - - SGML - - - * Documentation - - Doc (C) stuff of sheet music - - a better format? SGML? TeX? Info? - - a tutorial - - * more spanners (smallish) - - Glissando - - trill - - * Rewrite Stem, Beam and Rhythmic_grouping (hairy) - - [c8. c32 c32] - - doc on Rhythmic_grouping - - general shaving on Beam and Stem - - use plet grouping - - separate visual from rhythmic info even more - - beams over bars - - endbeam req should be *after* the duration, so you can do - < { [c4] } - { c8. c16 } > - - - * lines: - - Ledger lines, should be separate item: Ledger_lines, Ledger_lines - - set different line sizes / thicknesses - - beam stem showthrough, inter beam sizes (french vs german style) - - * Collisions - - left/right note balls should be handled by Collision: +. * make encapsulated spacing problems. + +. * accidentals per Voice_group + +. * Output class, handles : (smallish) +. * help text /(c) notice? +. * version line +. * warning /errors/progress +. * abort on error/warning; exit status +. * quiet/ignore-version options +. * logfile output + +. * PS +. * speed up PS code. +. * PS lines to .eps files +. * write custom prolog + +. * SGML input + +. * Documentation +. * remove links to non-free SW. +. * internal documentation +. * a general paper. +. * \properties +. * left/rightbeamcount +. * various other new properties. +. * introduction? +. * info? +. * LaTeX? +. * more manpages? +. * Doc (C) stuff of sheet music +. * a better format? SGML? TeX? Info? +. * a better tutorial + +. * more spanners (smallish) +. * Glissando +. * trill + +. * Rewrite Stem, Beam and Rhythmic_grouping (hairy) +. * [c8. c32 c32] +. * doc on Rhythmic_grouping +. * general shaving on Beam and Stem +. * use plet grouping +. * separate visual from rhythmic info even more +. * beams over bars + +. * lines: +. * Ledger lines, should be separate item: Ledger_lines +. * set different line sizes / thicknesses +. * beam stem showthrough, inter beam sizes (french vs german style) + +. * Collisions +. * left/right note balls should be handled by Collision: < \multi 2; { \stem 1; } { } > - * Keys: - - merge key{item} & localkey{item}? - - Major/Minor - - spacing, national styles? - - * Support for TAB - - redo Notehead to allow digits as heads - - add a \tablature {} lexer mode for easy entering - - * should adjust stemlength for flag number. - - * breaking: - - caching breakpoints - - saving them - - specify number of lines - - * markers - -INPUTLANGUAGE - - * c4 4 4 4 for c4 c4 c4 c4? - - * neatly (and readably) expressing concurrent - voices - - * 4 ? - - * Viola mode? +. * Keys: +. * merge key{item} & localkey{item}? +. * spacing, national styles? + +. * Support for TAB +. * redo Notehead to allow digits as heads +. * add a \tablature {} lexer mode for easy entering + +. * should adjust stemlength for flag number. + +. * breaking: +. * caching breakpoints +. * saving them +. * specify number of lines + +.* INPUTLANGUAGE +. * \rhythms 4 16 16 16 16; c c c c c -> c4 c16 etc. +. * Language: +. * \translator -> ? +. * fix \partial +. * \bla {} vs \bla ; +. * mix engraver hacking with music ? +. * \once\property KEY = VAL +. * \addtranslator, \removetranslator +. * junk ^ and _ for scripts +. * junk _ for lyrics. +. * abstract grammar. +. * Figure out semicolons. +. * c4 4 4 4 for c4 c4 c4 c4? +. * 4 ? +. * Viola mode? @c c g e g for @@ -565,62 +569,41 @@ INPUTLANGUAGE @A c g e g for cis gis e gis +. * configure pitch_byte +. * rest name configurable - * relative mode for pitch entering - - * bracket: volta 1,2 - - * configure pitch_byte - - * rest name configurable - -SMALLISH PROJECTS - - * limit memory usage; the full coriolan takes up too much resources. - * fix confusing naming in Engraver vs Engraver_group_engraver (context) +.* SMALLISH PROJECTS - * progress when creating MIDI elts. +. * Faulenzer sign (% repeat). Perhaps also use \repeat syntax? - * A range for context errors (eg. mark both { and }. ) +. * fix confusing naming in Engraver vs Engraver_group_engraver (context) - * lyric in staff (sharpsharp in staff, text below) +. * progress when creating MIDI elts. - * half sharps/flats +. * A range for context errors (eg. mark both { and }. ) - * write Dynamic_line (to group dynamics horizontally) +. * lyric in staff (sharpsharp in staff, text below) - * use Real for all y positions. - - use translate_axis( .. ,Y_AXIS) iso separate variables. +. * half sharps/flats - * half-sharps, half-flats +. * write Dynamic_line (to group dynamics horizontally) - * adaptive accidental spacing. +. * use Real for all y positions. - * handle EOF graciously in error messages. +. * half-sharps, half-flats - * centered whole rest +. * adaptive accidental spacing. - * declare notenametab? +. * handle EOF graciously in error messages. - * midi esp.: use I32 iso int where 32 bits are needed (or assumed...) +. * midi esp.: use I32 iso int where 32 bits are needed (or assumed...) - * Flower types: - - A decent scalar type - - String hash - - Pointer hash +. * stafftypes: voice names/ instrument names. - * binsearch/hash for identifiers +. * lily \tempo - * stafftypes: voice names/ instrument names. - - * lily \tempo - - * C meter iso 4/4, idem for alla breve, etc. - - * textspanner: center position - - * % toe to bheel four to five +. * % toe to bheel four to five % ^_u 4_5 % - % --|x-- --|x-- @@ -628,51 +611,145 @@ SMALLISH PROJECTS % --|--- --|--- (where "to" is a tiny bow) - * auxilliary file for caching info. - - * Text_crescendo - - * clean solution for staffsize in items. - - * revise calcideal - - * volta - -IDEAS - - - * Output data structures of Mudela in XML/SGML. - - * create libmudela, or liblily_frontend - - * move MIDI stuff (including Quantization) to a ANSI C libmidi library. - - * use an embedded language: Python, Scheme - for: - - Score_elems - - Translators - - * y -dims in internote? Staff-space? X-dimensions? - - * Spacing_request for manually adjusting spacing - - * caching breakpoints - - * breath marks - - * used fixedpoint arithmetic for min. energy. - - * move towards incremental algorithms. - - * far fetched language ideas - - design meta-language like TeX and Metafont - - programming/macros input - - * versioning stuff (cvt mudela, mudela, etc.) - - * Klavarskribo? - - * lyrics in chords still fuck up. - - * Use hooks/dependency graphs for properties - +. * auxilliary file for caching info. + +. * Text_crescendo + +. * revise calcideal + +.* IDEAS +. * Output data structures of Mudela in XML/SGML. +. * create libmudela, or liblily_frontend +. * move MIDI stuff (including Quantization) to a ANSI C libmidi library. +. * Spacing_request for manually adjusting spacing +. * caching breakpoints +. * used fixedpoint arithmetic for min. energy. +. * move towards incremental algorithms. +. * versioning stuff (cvt mudela, mudela, etc.) +. * dynamic loading of engravers? +.* SMOBS +Han-Wen Nienhuys writes: + +> class Foo_class { +> Foo_smob *smob_ptr_; +> } +> +> struct Foo_smob { +> Foo_class *class_ptr_ +> } + +Usually you can get away without having this interlinked structure. +One piece of information you need when exporting objects to scheme is +the smob tag for your class. You might store this value (a long) into +a class static variable, or a file static variable. I'll use a class +static variable in this example. + +I typically use code that works like this (untested code ahead): + +class Foo_class { + static long *Foo_smob_tag; + SCM obj; // representation as a scheme object, description comes later +} + +// call this once on startup +void init_Foo_class { + static scm_smobfuns type_rec; + + type_rec.mark = foo_mark; + type_rec.free = foo_free; + type_rec.print = foo_display; + type_rec.equalp = 0; + Foo_class::Foo_smob_tag = new int(scm_new_smob(type_rec)); +} + +When you want to export an object to scheme, you put a pointer to the +object itself in the cdr of the cell, and the tag in the car of the +cell. The code looks like this: + +// Is this a Foo? +static int +foo_p(SCM obj) +{ + return(SCM_NIMP(obj) && SCM_CAR(obj) == Foo_class::Foo_smob_tag); +} + +// given a Scheme representation, return, a C++ representation +static Foo_class * +foo_unbox(SCM obj) +{ + return((Foo_class*)SCM_CDR(obj)); +} + +// the SCM representation of the object is stored inside itself +// this will become useful when destructor gets called +static SCM +foo_box(Foo_class *foo) +{ + SCM_DEFER_INTS; + SCM_NEWCELL(foo->obj); + SCM_SETCAR(foo->obj, Foo_class::Foo_smob_tag); + SCM_SETCDR(foo->obj, (SCM)foo); + SCM_ALLOW_INTS; + return foo->obj; +} + +> C++ determines life time, so what is the strategy? + +What happens now when the destructor gets called? Lets set the cdr to +NULL, and then check for that in all of the primitive functions that +use your smob. We'll call this notion 'live'; a scheme object is +'live' if the C++ representation still exists, it's dead if the C++ +object is gone. You can still have references to dead objects in +scheme code; it's just an error to use them. This idea is stolen from +Emacs's handling of buffers ('buffer-live-p' and friends). + +Add another function, foo_live_p: + +static int +foo_live_p(SCM obj) +{ + return(foo_p(obj) && SCM_CDR(obj) != NULL); +} + +In you destructor, you need to do: + +~Foo_class() +{ + SCM_CDR(this->obj, NULL); +} + +When writing new primitives, now just check foo_live_p(). + +I hope the above helps, + + +* OUTLINE SETUP +.* .EMACS +;;; from outline.el +(defvar outline-font-lock-keywords + '(;; Highlight headings according to the level. + ;; must change this to allout node layout + ;;("^\\(\\*+\\)[ \t]*\\(.+\\)?[ \t]*$" + ("^\\([.]*[ ]*[*]\\)[ \t]*\\(.*\\)$" + (1 font-lock-string-face) + (2 (let ((len (- (match-end 1) (match-beginning 1)))) + (or (cdr (assq len '((1 . font-lock-function-name-face) + (2 . font-lock-keyword-face) + (3 . font-lock-comment-face)))) + font-lock-variable-name-face)) + nil t)) + ;; Highlight citations of the form [1] and [Mar94]. + ("\\[\\([A-Z][A-Za-z]+\\)*[0-9]+\\]" . font-lock-type-face)) + "Additional expressions to highlight in Outline mode.") + +(add-hook 'outline-mode-hook + '(lambda () + (setq font-lock-maximum-decoration t) + (setq font-lock-maximum-decoration t) + (make-local-variable 'font-lock-defaults) + (setq font-lock-defaults '(outline-font-lock-keywords t)) + (font-lock-mode global-font-lock-mode) + )) + +(require 'allout) +(outline-init 't)