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FrapUstaExport.qml
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//
// Copyright © 2022 Sebastian Hetze (shetze)
//
// This plugin is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published
// by the Free Software Foundation, either version 2.1 of the License, or
// (at your option) any later version.
//
// This program 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 Lesser General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
// This plugion makes use of some techniques demonstrated by the MuseScore
// example plugins. No copyright is claimed for these or the API extracts.
//
import QtQuick 2.9;
import QtQuick.Controls 1.4;
import QtQuick.Layouts 1.3;
import QtQuick.Dialogs 1.2;
import Qt.labs.settings 1.0;
// FileDialog
import Qt.labs.folderlistmodel 2.2;
import QtQml 2.8;
import MuseScore 3.0;
import FileIO 3.0;
MuseScore
{
description:"Export to FrapTools Usta Sequencer";
menuPath:"Plugins." + "Frap Usta Export";
version:"2.5";
requiresScore:true;
pluginType:"dialog";
id:window;
width:800;
height:250;
property int buttonWidth:80;
property int smallWidth:150;
property int mediumWidth:300;
property int bigWidth:500;
property int stdHeight:24;
property int bigHeight:45;
property int fontTitleSize:16;
property int fontSize:12;
property string crlf:"\r\n";
property var patternDict:[];
property var patterns:["T0_CVA_values", "T0_CVB_values",
"T0_CVA_var_mode_len", "T0_CVB_var_mode", "T0_GTA",
"T0_GTB", "T1_CVA_values", "T1_CVB_values",
"T1_CVA_var_mode_len", "T1_CVB_var_mode", "T1_GTA",
"T1_GTB", "T2_CVA_values", "T2_CVB_values",
"T2_CVA_var_mode_len", "T2_CVB_var_mode", "T2_GTA",
"T2_GTB", "T3_CVA_values", "T3_CVB_values",
"T3_CVA_var_mode_len", "T3_CVB_var_mode", "T3_GTA",
"T3_GTB"];
property var sinfonionDict:[];
property var patternsPerMeasure:[1, 1, 1, 1, 1, 1, 1, 1];
property var maxVoiceId:0;
property var voiceLimit:1;
property var maxStaffId:0;
property var staffLimit:3;
property var staffMerge:0;
property var tempoBPM:[0, 0, 0, 0];
property var trackLength:[31, 31, 31, 31];
property var skipMode:[0, 0, 0, 0];
// MIDI note 0 is [email protected]
// Usta has a pitch range starting with 0V named either C0 or A0, negative CV
// values are not supported for pitch. To match the MuseScore note values with
// the Usta range, we ignore the two lowest octaves and shift the MIDI note
// values 24 semitones down.
property var midiShift:24;
// buildMeasureMap() calculates the metrics of the score into the map dict
// structure to provide some context in further passes through the score
function buildMeasureMap (score)
{
var map = { };
var no = 1;
var cursor = score.newCursor ();
cursor.rewind (Cursor.SCORE_START);
while (cursor.measure)
{
var m = cursor.measure;
var tick = m.firstSegment.tick;
var tsD = m.timesigActual.denominator;
var tsN = m.timesigActual.numerator;
var ticksB = division * 4.0 / tsD;
var ticksM = ticksB * tsN;
no += m.noOffset;
var skip = false;
var sync = false;
var cur = {
"tick":tick,
"tsD":tsD,
"tsN":tsN,
"ticksB":ticksB,
"ticksM":ticksM,
"past":(tick + ticksM),
"no":no,
"skip":skip,
"sync":sync
};
map[cur.tick] = cur;
if (!m.irregular)
++no;
// get an overview of how many voices and staves we have in the score
if (cursor.staffIdx > maxStaffId)
maxStaffId = cursor.staffIdx;
if (cursor.voice > maxVoiceId)
maxVoiceId = cursor.voice;
// collect tempo BPM settings throughout the score.
// the first (global) BPM setting is populated as default, all other
// settings are stored for the respective save index, allowing for
// different tempo settings for the four Usta tracks.
var segment = m.firstSegment;
while ((segment != null)
&& (segment.segmentType != Segment.ChordRest))
{
// console.log('Walking through segments, looking for first chord
// or rest');
segment = segment.nextInMeasure;
}
if (segment != null)
{
for (var i = segment.annotations.length; i-- > 0;)
{
// console.log('walking through annotations');
if (segment.annotations[i].type == Element.TEMPO_TEXT)
{
if (segment.annotations[i].tempo != 0)
{
if (tempoBPM[0] == 0)
{
tempoBPM[0] = segment.annotations[i].tempo * 60;
tempoBPM[1] = segment.annotations[i].tempo * 60;
tempoBPM[2] = segment.annotations[i].tempo * 60;
tempoBPM[3] = segment.annotations[i].tempo * 60;
}
else
{
// TEMPO_TEXT annotations allways belong to the
// first voice of the first staff
// therefor only the first track tempo can be
// modified by additional TEMPO_TEXT settings.
tempoBPM[cursor.staffIdx] =
segment.annotations[i].tempo * 60;
}
}
console.log ('found tempo ' + tempoBPM[cursor.staffIdx]);
break;
}
// staff text annotations provide an easy and flexible way to
// pass all kinds of global and per track settings
// although the staff text is visibly attached to a particular
// line,
if (segment.annotations[i].type == Element.STAFF_TEXT)
{
// console.log('found staff text ' + cursor.staffIdx + ':'
// + segment.annotations[i].text.slice(0,4));
// to allow individual tempo settings for all four staves,
// we look for "BPM=x:yyy" staff text annotations
// where x is the track number (0-3) and yyy is the BPM
// value
if (segment.annotations[i].text.slice (0, 4) == "BPM=")
{
var staffIdx =
segment.annotations[i].text.slice (4, 5);
tempoBPM[staffIdx] =
segment.annotations[i].text.slice (6, 9);
console.log ('found staff text BPM ' + staffIdx +
':' + tempoBPM[staffIdx]);
}
if (segment.annotations[i].text.slice (0, 4) == "usta")
{
var cmd = segment.annotations[i].text.slice (5, 9);
var arg = segment.annotations[i].text.slice (10, 50);
if (cmd == "skip")
{
cur.skip = arg;
}
if (cmd == "sync")
{
cur.sync = arg;
}
if (cmd == "sbpm")
{
var bpmList = arg (',');
for (var i in bpmList)
{
var bd = bpmList[i].split (':');
tempoBPM[bd[0]] = bd[1];
}
}
console.log ('found usta cmd ' + cmd + ':' + arg);
}
}
if (segment.annotations[i].type == Element.HARMONY)
{
var sinfony =
chord2Sinfonion (segment.annotations[i].text,
(4 * ticksM / 480));
console.log ('found accord symbol ' + tsN + "/" + tsD +
" measure " + no + " at tick " + cur.tick +
" length " + ticksM + ':' +
segment.annotations[i].text + "->" +
sinfony);
}
}
}
// console.log(tsN + "/" + tsD + " measure " + no + " at tick " +
// cur.tick + " length " + ticksM);
cursor.nextMeasure ();
}
return map;
}
// applyToSelectionOrScore(cb, ...args) is the workhorse which walks
// through the current score or selection thereof element by element and
// applies a callback function with possible args
function applyToSelectionOrScore (cb)
{
var args = Array.prototype.slice.call (arguments, 1);
var staveBeg;
var staveEnd;
var tickEnd;
var rewindMode;
var toEOF;
var cursor = curScore.newCursor ();
cursor.rewind (Cursor.SELECTION_START);
if (cursor.segment)
{
staveBeg = cursor.staffIdx;
cursor.rewind (Cursor.SELECTION_END);
staveEnd = cursor.staffIdx;
if (!cursor.tick)
{
/*
* This happens when the selection goes to the
* end of the score — rewind() jumps behind the
* last segment, setting tick = 0.
*/
toEOF = true;
}
else
{
toEOF = false;
tickEnd = cursor.tick;
}
rewindMode = Cursor.SELECTION_START;
}
else
{
/* no selection */
staveBeg = 0;
staveEnd = curScore.nstaves - 1;
toEOF = true;
rewindMode = Cursor.SCORE_START;
}
for (var stave = staveBeg; stave <= staveEnd; ++stave)
{
for (var voice = 0; voice < 4; ++voice)
{
cursor.staffIdx = stave;
cursor.voice = voice;
cursor.rewind (rewindMode);
/* XXX https://musescore.org/en/node/301846 */
cursor.staffIdx = stave;
cursor.voice = voice;
while (cursor.segment && (toEOF || cursor.tick < tickEnd))
{
if (cursor.element)
cb.apply (null,[cursor].concat (args));
cursor.next ();
}
}
}
}
// showPos is a debugging function which makes use of the measureMap metrics
// to position the current event inside the staff/voice/measure space
function showPos (cursor, measureMap)
{
var t = cursor.segment.tick;
var m = measureMap[cursor.measure.firstSegment.tick];
var b = "?";
if (m && t >= m.tick && t < m.past)
{
b = 1 + (t - m.tick) / m.ticksB;
}
return "St" + (cursor.staffIdx + 1) +
" Vc" + (cursor.voice + 1) + " Ms" + m.no + " Bt" + b;
}
function skipMeasure (cursor, measureMap)
{
var m = measureMap[cursor.measure.firstSegment.tick];
if (m.skip)
{
var splitList = m.skip.split (',');
for (var i in splitList)
{
var sd = splitList[i].split (':');
if (sd[0] == 0 || sd[0] == (cursor.staffIdx + 1))
{
skipMode[cursor.staffIdx] = m.no * 1 + sd[1] * 1;
console.log (showPos (cursor, measureMap) + ": skip " +
sd[1] + " to " + skipMode[cursor.staffIdx]);
return true;
}
}
}
if (skipMode[cursor.staffIdx])
{
if (skipMode[cursor.staffIdx] > m.no)
{
return true;
}
else
{
skipMode[cursor.staffIdx] = false;
}
}
return false;
}
function syncPattern (cursor, measureMap)
{
var m = measureMap[cursor.measure.firstSegment.tick];
if (m.sync)
{
var syncList = m.sync.split (',');
for (var i in syncList)
{
if (syncList[i] == (cursor.staffIdx + 1))
{
syncList.splice (i, 1);
m.sync = syncList.join (',');
console.log (showPos (cursor, measureMap) +
": syncPattern remains " + m.sync);
return true;
}
}
}
return false;
}
// matchGrid checks if the cursor is matching a 16th note grid pattern
function matchGrid (cursor, measureMap)
{
var t = cursor.segment.tick;
var m = measureMap[cursor.measure.firstSegment.tick];
var b = 0;
if (m && t >= m.tick && t < m.past)
{
b = ((t - m.tick) / m.ticksB) % 0.25;
}
if (b > 0)
{
return 0;
}
return 1;
}
// nameElementType() knows about all the possible elements that can appear
// inside a score. Currently, we only care about CHORD and REST, but this may
// change in the future.
function nameElementType (elementType)
{
switch (elementType)
{
case Element.ACCIDENTAL:
return "ACCIDENTAL";
case Element.AMBITUS:
return "AMBITUS";
case Element.ARPEGGIO:
return "ARPEGGIO";
case Element.ARTICULATION:
return "ARTICULATION";
case Element.BAGPIPE_EMBELLISHMENT:
return "BAGPIPE_EMBELLISHMENT";
case Element.BAR_LINE:
return "BAR_LINE";
case Element.BEAM:
return "BEAM";
case Element.BEND:
return "BEND";
case Element.BRACKET:
return "BRACKET";
case Element.BRACKET_ITEM:
return "BRACKET_ITEM";
case Element.BREATH:
return "BREATH";
case Element.CHORD:
return "CHORD";
case Element.CHORDLINE:
return "CHORDLINE";
case Element.CLEF:
return "CLEF";
case Element.COMPOUND:
return "COMPOUND";
case Element.DYNAMIC:
return "DYNAMIC";
case Element.ELEMENT:
return "ELEMENT";
case Element.ELEMENT_LIST:
return "ELEMENT_LIST";
case Element.FBOX:
return "FBOX";
case Element.FERMATA:
return "FERMATA";
case Element.FIGURED_BASS:
return "FIGURED_BASS";
case Element.FINGERING:
return "FINGERING";
case Element.FRET_DIAGRAM:
return "FRET_DIAGRAM";
case Element.FSYMBOL:
return "FSYMBOL";
case Element.GLISSANDO:
return "GLISSANDO";
case Element.GLISSANDO_SEGMENT:
return "GLISSANDO_SEGMENT";
case Element.HAIRPIN:
return "HAIRPIN";
case Element.HAIRPIN_SEGMENT:
return "HAIRPIN_SEGMENT";
case Element.HARMONY:
return "HARMONY";
case Element.HBOX:
return "HBOX";
case Element.HOOK:
return "HOOK";
case Element.ICON:
return "ICON";
case Element.IMAGE:
return "IMAGE";
case Element.INSTRUMENT_CHANGE:
return "INSTRUMENT_CHANGE";
case Element.INSTRUMENT_NAME:
return "INSTRUMENT_NAME";
case Element.JUMP:
return "JUMP";
case Element.KEYSIG:
return "KEYSIG";
case Element.LASSO:
return "LASSO";
case Element.LAYOUT_BREAK:
return "LAYOUT_BREAK";
case Element.LEDGER_LINE:
return "LEDGER_LINE";
case Element.LET_RING:
return "LET_RING";
case Element.LET_RING_SEGMENT:
return "LET_RING_SEGMENT";
case Element.LYRICS:
return "LYRICS";
case Element.LYRICSLINE:
return "LYRICSLINE";
case Element.LYRICSLINE_SEGMENT:
return "LYRICSLINE_SEGMENT";
case Element.MARKER:
return "MARKER";
case Element.MEASURE:
return "MEASURE";
case Element.MEASURE_LIST:
return "MEASURE_LIST";
case Element.MEASURE_NUMBER:
return "MEASURE_NUMBER";
case Element.NOTE:
return "NOTE";
case Element.NOTEDOT:
return "NOTEDOT";
case Element.NOTEHEAD:
return "NOTEHEAD";
case Element.NOTELINE:
return "NOTELINE";
case Element.OSSIA:
return "OSSIA";
case Element.OTTAVA:
return "OTTAVA";
case Element.OTTAVA_SEGMENT:
return "OTTAVA_SEGMENT";
case Element.PAGE:
return "PAGE";
case Element.PALM_MUTE:
return "PALM_MUTE";
case Element.PALM_MUTE_SEGMENT:
return "PALM_MUTE_SEGMENT";
case Element.PART:
return "PART";
case Element.PEDAL:
return "PEDAL";
case Element.PEDAL_SEGMENT:
return "PEDAL_SEGMENT";
case Element.REHEARSAL_MARK:
return "REHEARSAL_MARK";
case Element.REPEAT_MEASURE:
return "REPEAT_MEASURE";
case Element.REST:
return "REST";
case Element.SCORE:
return "SCORE";
case Element.SEGMENT:
return "SEGMENT";
case Element.SELECTION:
return "SELECTION";
case Element.SHADOW_NOTE:
return "SHADOW_NOTE";
case Element.SLUR:
return "SLUR";
case Element.SLUR_SEGMENT:
return "SLUR_SEGMENT";
case Element.SPACER:
return "SPACER";
case Element.STAFF:
return "STAFF";
case Element.STAFFTYPE_CHANGE:
return "STAFFTYPE_CHANGE";
case Element.STAFF_LINES:
return "STAFF_LINES";
case Element.STAFF_LIST:
return "STAFF_LIST";
case Element.STAFF_STATE:
return "STAFF_STATE";
case Element.STAFF_TEXT:
return "STAFF_TEXT";
case Element.STEM:
return "STEM";
case Element.STEM_SLASH:
return "STEM_SLASH";
case Element.STICKING:
return "STICKING";
case Element.SYMBOL:
return "SYMBOL";
case Element.SYSTEM:
return "SYSTEM";
case Element.SYSTEM_DIVIDER:
return "SYSTEM_DIVIDER";
case Element.SYSTEM_TEXT:
return "SYSTEM_TEXT";
case Element.TAB_DURATION_SYMBOL:
return "TAB_DURATION_SYMBOL";
case Element.TBOX:
return "TBOX";
case Element.TEMPO_TEXT:
return "TEMPO_TEXT";
case Element.TEXT:
return "TEXT";
case Element.TEXTLINE:
return "TEXTLINE";
case Element.TEXTLINE_BASE:
return "TEXTLINE_BASE";
case Element.TEXTLINE_SEGMENT:
return "TEXTLINE_SEGMENT";
case Element.TIE:
return "TIE";
case Element.TIE_SEGMENT:
return "TIE_SEGMENT";
case Element.TIMESIG:
return "TIMESIG";
case Element.TREMOLO:
return "TREMOLO";
case Element.TREMOLOBAR:
return "TREMOLOBAR";
case Element.TRILL:
return "TRILL";
case Element.TRILL_SEGMENT:
return "TRILL_SEGMENT";
case Element.TUPLET:
return "TUPLET";
case Element.VBOX:
return "VBOX";
case Element.VIBRATO:
return "VIBRATO";
case Element.VIBRATO_SEGMENT:
return "VIBRATO_SEGMENT";
case Element.VOLTA:
return "VOLTA";
case Element.VOLTA_SEGMENT:
return "VOLTA_SEGMENT";
default:
return "(Element." + (elementType + 0) + ")";
}
}
// dirname() takes a path/filename and returns the path part
function dirname (p)
{
return (p.slice (0, p.lastIndexOf ("/") + 1));
}
// FileIO is the QT object which handles all the heavy lifting
FileIO
{
id:csvWriter;
onError:console.log (msg + " Filename = " + csvWriter.source);
}
// createCSV() is the actual export method in which the usta sequencer
// project data is compiled and written into a file.
// The project consists of four parts; the songs part, a per track settings
// part, 4*5 lines of patterns and a closing part with global settings.
function createCSV ()
{
if (!textFieldFileName.text)
{
errorDialog.openErrorDialog (qsTr ("File name not specified"));
return;
}
else if (!textFieldFilePath.text)
{
errorDialog.openErrorDialog (qsTr ("File folder not specified"));
return;
}
if (textFieldFileName.text == ".UST")
textFieldFileName.text = "SCORE.UST";
var csv = "";
csv += createSongs ();
csv += createPerTrackSettings ();
csv += dumpPatterns ();
csv += createGlobalSettings ();
var filename = textFieldFilePath.text + "/" + textFieldFileName.text;
console.log ("export to " + filename);
csvWriter.source = filename;
console.log ("writing csv...");
csvWriter.write (csv);
console.log ("conversion performed");
endDialog.open ();
}
// createSongs() is generating four lines of default (empty) song structures
// we may want to add some more features here in the future
// a random song generator may be interesting
function createSongs ()
{
console.log ("compiling the Song section...");
var song = "";
for (var s = 0; s < 4; s++)
{
for (var i = 0; i < 130; i++)
{
if (i == 65)
song += "1;";
else
song += "0;";
}
song += "SONG " + s + crlf;
}
return song;
}
function calculateTrackLenghts ()
{
trackLength[0] =
Math.min (Math.ceil (patternDict["T0_CVA_values"].length / 16), 31);
trackLength[1] =
Math.min (Math.ceil (patternDict["T1_CVA_values"].length / 16), 31);
trackLength[2] =
Math.min (Math.ceil (patternDict["T2_CVA_values"].length / 16), 31);
trackLength[3] =
Math.min (Math.ceil (patternDict["T3_CVA_values"].length / 16), 31);
if (checkEnableSinfonion.checked)
{
trackLength[3] =
Math.min (Math.ceil (sinfonionDict["T3_SINF_root"].length / 16),
31);
}
}
// createPerTrackSettings() is generating a set of default settings per track
// we may want to add some more features here in the future.
function createPerTrackSettings ()
{
console.log ("compiling the General section...");
calculateTrackLenghts ();
var firstPattern = 1;
var ratio = 11;
// clock ratio (transp a)
// [24:1, 8:1, 7:1, 6:1, 5:1, 4:1, 3:1, 2:1, 1:1, 1:2, 1:3, 1:4, 1:5, 1:6,
// 1:7, 1:8][ratio]
// general[0] Track Number 0-3
// general[1] currently selected track 0/1
// general[5] CVB Mode 0=Raw 1=Pitch
// general[12] Clock Source 0=ext 1=int
var general =
"TRACK;SELECTED;RES_KIND;TIME_RES;CVA_RANGE;CVA_MODE;CVA_MUTE;GATE_A_MUTE;"
+
"CVB_RANGE;CVB_MODE;CVB_MUTE;GATE_B_MUTE;TR_MUTE;LOOP_LEN;ROOT;SCALE;QNTDIR;"
+
"GTA%;GTB%;SOURCE;SWING;LASTPAT;SONGMODE;patternmd;transp a;transp b;loop step;"
+
"loop pat;loop length;loop for;isLoop;trackBPM;ratio;gtFullA;gtFullB;resetWhat;"
+ "resetWhen;stageShift;gateShift a;gateShift b;chance" + crlf;
general +=
"0;1;0;0;0;0;0;0;0;0;50;50;0;" + firstPattern + ";" + trackLength[0] +
";0;0;0;0;0;1;1;0;" + Math.floor (tempoBPM[0]) + ";" + ratio +
";1;2;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;1;0;0;0;0;0;0" + crlf;
general +=
"1;0;0;0;0;0;0;0;0;0;50;50;0;" + firstPattern + ";" + trackLength[1] +
";0;0;0;0;0;1;1;0;" + Math.floor (tempoBPM[1]) + ";" + ratio +
";1;2;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;1;0;0;0;0;0;0" + crlf;
general +=
"2;0;0;0;0;0;0;0;0;0;50;50;0;" + firstPattern + ";" + trackLength[2] +
";0;0;0;0;0;1;1;0;" + Math.floor (tempoBPM[2]) + ";" + ratio +
";1;2;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;1;0;0;0;0;0;0" + crlf;
general +=
"3;0;0;0;0;0;0;7;0;0;50;50;0;" + firstPattern + ";" + trackLength[3] +
";0;0;0;0;0;1;1;0;" + Math.floor (tempoBPM[3]) + ";" + ratio +
";1;2;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;1;0;0;0;0;0;0" + crlf;
return general;
}
// createGlobalSettings() is generating a set of global default settings
// we may want to add some more features here in the future
function createGlobalSettings ()
{
console.log ("compiling the Closing section...");
var closing =
"AllEdShPly;0Vis;aux;Master;rel temp;empty 1;empty 2;empty 3;empty 4" +
crlf;
closing += "3;0;0;3;0;0;0;0;0" + crlf;
return closing;
}
// emptyPatterns() is used to initialize the pattern dictionaries
function emptyPatterns ()
{
sinfonionDict["T3_SINF_root"] =[];
sinfonionDict["T3_SINF_degree"] =[];
sinfonionDict["T3_SINF_len"] =[];
sinfonionDict["T3_SINF_gateA"] =[];
sinfonionDict["T3_SINF_gateB"] =[];
for (var ptype in patterns)
patternDict[patterns[ptype]] =[];
}
// dumpPatterns() walks through the patternDict and concatenates all the
// elements into the 4*5*512 value pattern line block for the project
function dumpPatterns ()
{
var pcsv = "";
for (var p in patterns)
{
var ptype = patterns[p];
var parray = patternDict[ptype];
if (checkEnableSinfonion.checked && ptype == "T3_CVA_values")
{
parray = sinfonionDict["T3_SINF_root"];
}
if (checkEnableSinfonion.checked && ptype == "T3_CVB_values")
{
parray = sinfonionDict["T3_SINF_degree"];
}
if (checkEnableSinfonion.checked && ptype == "T3_CVA_var_mode_len")
{
parray = sinfonionDict["T3_SINF_len"];
}
if (checkEnableSinfonion.checked && ptype == "T3_GTA")
{
parray = sinfonionDict["T3_SINF_gateA"];
}
if (checkEnableSinfonion.checked && ptype == "T3_GTB")
{
parray = sinfonionDict["T3_SINF_gateB"];
}
for (var i = 0; i < (32 * 16); i++)
{
if (parray[i])
pcsv += (parray[i] + ";");
else
pcsv += ("0;");
}
pcsv += (ptype + crlf);
}
return pcsv;
}
// scanDenominators() deals with note value limits
// the usta pattern consists of 16 steps;
// by default, we map one measure to these 16 steps which leads to a limit of
//
// 1/16th note values
// we may support 1/32 note values by mapping one measure to 2*16 pattern
// steps, this is not fully implemented yet
function scanDenominators (cursor, measureMap)
{
if (!
(cursor.element.type == Element.CHORD
|| cursor.element.type == Element.REST))
return;
if (cursor.staffIdx > staffLimit)
return;
if (cursor.voice > voiceLimit)
return;
if (cursor.element.duration.denominator > 32)
{
errorDialog.openErrorDialog (qsTr
("Note values smaller 1/32 are not supported"));
quit;
}
if (cursor.element.duration.denominator > 16)
{
console.log (showPos (cursor, measureMap) + ": measure overrun " +
cursor.element.duration.nominator + "/" +
cursor.element.duration.denominator);
patternsPerMeasure[cursor.staffIdx] = 2;
}
}
// chord2Sinfonion translates the chord symbol into CV suitable to provide
// the ACL Sinfonion chord sequence
// we only use one (the first) chord for each measure
// channel A is the root note
// channel B is the degree of the first Chords mode
// turn ROOT and DEGREE full CCW to make this work properly
// gate A fires once per measure (usable for the AB switch)
// gate B fires each step, proving a 4 PPQ clock signal
function chord2Sinfonion (chord, steps)
{
if (chord.includes ('/'))
{
chord = chord.slice (0, chord.lastIndexOf ("/"));
}
var root = chord.slice (0, 1);
var mode = '';
var pitch = 0;
if (chord.slice (1, 2) == '#')
{
root += '#';
mode = chord.slice (2, 9);
}
else if (chord.slice (1, 2) == 'b')
{
root += 'b';
mode = chord.slice (2, 9);
}
else
{
mode = chord.slice (1, 9);
}
console.log ('root:' + root + ' mode:<' + mode + '> steps ' + steps);
pitch = pitchValue (root);
var degree = degreeValue (mode);
var gateAfired = false;
while (steps > 16)
{
sinfonionDict["T3_SINF_root"].push ((pitch + midiShift) * 201);
sinfonionDict["T3_SINF_degree"].push ((degree + midiShift) * 201);
sinfonionDict["T3_SINF_len"].push (16 * 867);
// gate A fires once per measure
sinfonionDict["T3_SINF_gateA"].push (4 * 867);
// gate B fires every step (4 PPQ)
sinfonionDict["T3_SINF_gateB"].push (16 * 867 + 289); // 16 gates (green)
gateAfired = true;
steps -= 16;
}
sinfonionDict["T3_SINF_root"].push ((pitch + midiShift) * 201);
sinfonionDict["T3_SINF_degree"].push ((degree + midiShift) * 201);
sinfonionDict["T3_SINF_len"].push (steps * 867);
if (gateAfired)
{
sinfonionDict["T3_SINF_gateA"].push (289 + 289); // skip gate (red)
}
else
{
sinfonionDict["T3_SINF_gateA"].push (867);
}
sinfonionDict["T3_SINF_gateB"].push (steps * 867 + 289); // # gates (green)
return pitch + ':' + degree;
}
function pitchValue (root)
{
switch (root)
{
case 'C':
case 'B#':
return 0;
case 'C#':
case 'Db':
return 1;
case 'D':
return 2;
case 'D#':
case 'Eb':
return 3;
case 'E':
case 'Fb':
return 4;
case 'F':
case 'E#':
return 5;
case 'F#':
case 'Gb':
return 6;
case 'G':
return 7;
case 'G#':
case 'Ab':
return 8;
case 'A':
return 9;
case 'A#':
case 'Bb':
return 10;
case 'B':
case 'Cb':
return 11;
default:
return 0;
}
}
function degreeValue (mode)
{
switch (mode)
{
case 'lyd':
return 0;
case 'maj':
case 'Maj9':
return 1;
case '7':
return 2;
case 'sus':
case 'sus4':
case '7sus4':
return 3;
case 'alt':
return 4;
case 'hm5':
return 5;
case 'dor':
return 6;
case 'min':
case 'm':
case 'm9':
case 'm7': // optional min|phr
return 7;
case 'hm':
case 'm(Maj7)':
return 8;
case 'phr':
return 9;
case 'dim':
return 10;
case 'aug':
return 11;
case '7(b13)': // substitution for Chords2 Degree 5
return 0;
default:
return 0;
}
}
// note2CV() translates the note (and rest) elements in the score to CV and
// gate values for the usta project
// we may want to add some more features here in the future
function note2CV (cursor, measureMap)
{
// console.log(showPos(cursor, measureMap) + ": " +
// nameElementType(cursor.element.type));
if (!
(cursor.element.type == Element.CHORD
|| cursor.element.type == Element.REST))
return;
if (cursor.staffIdx > staffLimit)
return;
if (cursor.voice > voiceLimit)
return;
var trackNr = cursor.staffIdx;
var voiceNr = cursor.voice;
if (skipMeasure (cursor, measureMap))
{
return;
}
if (staffMerge > 0)
{
trackNr =[0, 0, 1, 1, 2, 2, 3, 3][cursor.staffIdx];
voiceNr =[0, 1, 0, 1, 0, 1, 0, 1][cursor.staffIdx];
// alternative merge pattern