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-rw-r--r--attic/muse_qt4_evolution/al/tempo.cpp393
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diff --git a/attic/muse_qt4_evolution/al/tempo.cpp b/attic/muse_qt4_evolution/al/tempo.cpp
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--- a/attic/muse_qt4_evolution/al/tempo.cpp
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-//=============================================================================
-// AL
-// Audio Utility Library
-// $Id:$
-//
-// Copyright (C) 2002-2006 by Werner Schweer and others
-//
-// This program is free software; you can redistribute it and/or modify
-// it under the terms of the GNU General Public License version 2.
-//
-// 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 General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-//=============================================================================
-
-#include "al.h"
-#include "tempo.h"
-#include "xml.h"
-
-namespace AL {
-
-TempoList tempomap;
-
-//---------------------------------------------------------
-// TempoList
-//---------------------------------------------------------
-
-TempoList::TempoList()
- {
- _tempo = 500000;
- insert(std::pair<const unsigned, TEvent*> (MAX_TICK+1, new TEvent(_tempo, 0)));
- _tempoSN = 1;
- _globalTempo = 100;
- useList = true;
- }
-
-//---------------------------------------------------------
-// add
-//---------------------------------------------------------
-
-void TempoList::add(unsigned tick, int tempo)
- {
- if (tick > MAX_TICK)
- tick = MAX_TICK;
-
- iTEvent e = upper_bound(tick);
-
- if (tick == e->second->tick)
- e->second->tempo = tempo;
- else {
- TEvent* ne = e->second;
- TEvent* ev = new TEvent(ne->tempo, ne->tick);
- ne->tempo = tempo;
- ne->tick = tick;
- insert(std::pair<const unsigned, TEvent*> (tick, ev));
- }
- normalize();
- }
-
-//---------------------------------------------------------
-// TempoList::normalize
-//---------------------------------------------------------
-
-void TempoList::normalize()
- {
- int frame = 0;
- for (iTEvent e = begin(); e != end(); ++e) {
- e->second->frame = frame;
- unsigned dtick = e->first - e->second->tick;
- double dtime = double(dtick) / (division * _globalTempo * 10000.0/e->second->tempo);
- frame += lrint(dtime * sampleRate);
- }
- }
-
-//---------------------------------------------------------
-// TempoList::dump
-//---------------------------------------------------------
-
-void TempoList::dump() const
- {
- printf("\nTempoList:\n");
- for (ciTEvent i = begin(); i != end(); ++i) {
- printf("%6d %06d Tempo %6d Frame %d\n",
- i->first, i->second->tick, i->second->tempo,
- i->second->frame);
- }
- }
-
-//---------------------------------------------------------
-// clear
-//---------------------------------------------------------
-
-void TempoList::clear()
- {
- for (iTEvent i = begin(); i != end(); ++i)
- delete i->second;
- TEMPOLIST::clear();
- insert(std::pair<const unsigned, TEvent*> (MAX_TICK+1, new TEvent(500000, 0)));
- ++_tempoSN;
- }
-
-//---------------------------------------------------------
-// tempo
-//---------------------------------------------------------
-
-int TempoList::tempo(unsigned tick) const
- {
- if (useList) {
- ciTEvent i = upper_bound(tick);
- if (i == end()) {
- printf("no TEMPO at tick %d,0x%x\n", tick, tick);
- return 1000;
- }
- return i->second->tempo;
- }
- else
- return _tempo;
- }
-
-//---------------------------------------------------------
-// del
-//---------------------------------------------------------
-
-void TempoList::del(unsigned tick)
- {
-// printf("TempoList::del(%d)\n", tick);
- iTEvent e = find(tick);
- if (e == end()) {
- printf("TempoList::del(%d): not found\n", tick);
- return;
- }
- del(e);
- ++_tempoSN;
- }
-
-void TempoList::del(iTEvent e)
- {
- iTEvent ne = e;
- ++ne;
- if (ne == end()) {
- printf("TempoList::del(): not found\n");
- return;
- }
- ne->second->tempo = e->second->tempo;
- ne->second->tick = e->second->tick;
- erase(e);
- normalize();
- ++_tempoSN;
- }
-
-//---------------------------------------------------------
-// change
-//---------------------------------------------------------
-
-void TempoList::change(unsigned tick, int newTempo)
- {
- iTEvent e = find(tick);
- e->second->tempo = newTempo;
- normalize();
- ++_tempoSN;
- }
-
-//---------------------------------------------------------
-// setTempo
-// called from transport window
-// & slave mode tempo changes
-//---------------------------------------------------------
-
-void TempoList::setTempo(unsigned tick, int newTempo)
- {
- if (useList)
- add(tick, newTempo);
- else
- _tempo = newTempo;
- ++_tempoSN;
- }
-
-//---------------------------------------------------------
-// setGlobalTempo
-//---------------------------------------------------------
-
-void TempoList::setGlobalTempo(int val)
- {
- _globalTempo = val;
- ++_tempoSN;
- normalize();
- }
-
-//---------------------------------------------------------
-// addTempo
-//---------------------------------------------------------
-
-void TempoList::addTempo(unsigned t, int tempo)
- {
- add(t, tempo);
- ++_tempoSN;
- }
-
-//---------------------------------------------------------
-// delTempo
-//---------------------------------------------------------
-
-void TempoList::delTempo(unsigned tick)
- {
- del(tick);
- ++_tempoSN;
- }
-
-//---------------------------------------------------------
-// changeTempo
-//---------------------------------------------------------
-
-void TempoList::changeTempo(unsigned tick, int newTempo)
- {
- change(tick, newTempo);
- ++_tempoSN;
- }
-
-//---------------------------------------------------------
-// setMasterFlag
-//---------------------------------------------------------
-
-bool TempoList::setMasterFlag(unsigned /*tick*/, bool val)
- {
- if (useList != val) {
- useList = val;
- ++_tempoSN;
- return true;
- }
- return false;
- }
-
-//---------------------------------------------------------
-// tick2frame
-//---------------------------------------------------------
-
-unsigned TempoList::tick2frame(unsigned tick, unsigned frame, int* sn) const
- {
- return (*sn == _tempoSN) ? frame : tick2frame(tick, sn);
- }
-
-//---------------------------------------------------------
-// tick2frame
-//---------------------------------------------------------
-
-unsigned TempoList::tick2frame(unsigned tick, int* sn) const
- {
- int f;
- if (useList) {
- ciTEvent i = upper_bound(tick);
- if (i == end()) {
- printf("tick2frame(%d,0x%x): not found\n", tick, tick);
- abort(); // debug
- return 0;
- }
- unsigned dtick = tick - i->second->tick;
- double dtime = double(dtick) / (division * _globalTempo * 10000.0/ i->second->tempo);
- unsigned dframe = lrint(dtime * sampleRate);
- f = i->second->frame + dframe;
- }
- else {
- double t = (double(tick) * double(_tempo)) / (double(division) * _globalTempo * 10000.0);
- f = lrint(t * sampleRate);
- }
- if (sn)
- *sn = _tempoSN;
- return f;
- }
-
-//---------------------------------------------------------
-// frame2tick
-// return cached value t if list did not change
-//---------------------------------------------------------
-
-unsigned TempoList::frame2tick(unsigned frame, unsigned t, int* sn) const
- {
- return (*sn == _tempoSN) ? t : frame2tick(frame, sn);
- }
-
-//---------------------------------------------------------
-// frame2tick
-//---------------------------------------------------------
-
-unsigned TempoList::frame2tick(unsigned frame, int* sn) const
- {
- unsigned tick;
- if (useList) {
- ciTEvent e;
- for (e = begin(); e != end();) {
- ciTEvent ee = e;
- ++ee;
- if (ee == end())
- break;
- if (frame < ee->second->frame)
- break;
- e = ee;
- }
- unsigned te = e->second->tempo;
- int dframe = frame - e->second->frame;
- double dtime = double(dframe) / double(sampleRate);
- tick = e->second->tick + lrint(dtime * _globalTempo * division * 10000.0 / te);
- }
- else
- tick = lrint((double(frame)/double(sampleRate)) * _globalTempo * division * 10000.0 / double(_tempo));
- if (sn)
- *sn = _tempoSN;
- return tick;
- }
-
-//---------------------------------------------------------
-// TempoList::write
-//---------------------------------------------------------
-
-void TempoList::write(Xml& xml) const
- {
- xml.stag(QString("tempolist fix=\"%1\"").arg(_tempo));
- if (_globalTempo != 100)
- xml.tag("globalTempo", _globalTempo);
- for (ciTEvent i = begin(); i != end(); ++i)
- i->second->write(xml, i->first);
- xml.etag("tempolist");
- }
-
-//---------------------------------------------------------
-// TempoList::read
-//---------------------------------------------------------
-
-void TempoList::read(QDomNode node)
- {
- QDomElement e = node.toElement();
- _tempo = e.attribute("fix","500000").toInt();
-
- node = node.firstChild();
- while (!node.isNull()) {
- e = node.toElement();
- if (e.tagName() == "tempo") {
- TEvent* t = new TEvent();
- unsigned tick = t->read(node);
- iTEvent pos = find(tick);
- if (pos != end())
- erase(pos);
- insert(std::pair<const int, TEvent*> (tick, t));
- }
- else if (e.tagName() == "globalTempo")
- _globalTempo = e.text().toInt();
- else
- printf("MusE:Tempolist: unknown tag %s\n", e.tagName().toLatin1().data());
- node = node.nextSibling();
- }
- normalize();
- ++_tempoSN;
- }
-
-//---------------------------------------------------------
-// TEvent::write
-//---------------------------------------------------------
-
-void TEvent::write(Xml& xml, int at) const
- {
- xml.stag(QString("tempo at=\"%1\"").arg(at));
- xml.tag("tick", tick);
- xml.tag("val", tempo);
- xml.etag("tempo");
- }
-
-//---------------------------------------------------------
-// TEvent::read
-//---------------------------------------------------------
-
-int TEvent::read(QDomNode node)
- {
- QDomElement e = node.toElement();
- int at = e.attribute("at","0").toInt();
-
- node = node.firstChild();
- while (!node.isNull()) {
- e = node.toElement();
- if (e.tagName() == "tick")
- tick = e.text().toInt();
- else if (e.tagName() == "val")
- tempo = e.text().toInt();
- else
- printf("MusE:TEvent: unknown tag %s\n", e.tagName().toLatin1().data());
- node = node.nextSibling();
- }
- return at;
- }
-}
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