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authorRobert Jonsson <spamatica@gmail.com>2011-03-07 19:01:11 +0000
committerRobert Jonsson <spamatica@gmail.com>2011-03-07 19:01:11 +0000
commite40fc849149dd97c248866a4a1d026dda5e57b62 (patch)
treeb12b358f3b3a0608001d30403358f8443118ec5f /attic/muse2-oom/muse2/al/sig.h
parent1bd4f2e8d9745cabb667b043171cad22c8577768 (diff)
clean3
Diffstat (limited to 'attic/muse2-oom/muse2/al/sig.h')
-rw-r--r--attic/muse2-oom/muse2/al/sig.h117
1 files changed, 117 insertions, 0 deletions
diff --git a/attic/muse2-oom/muse2/al/sig.h b/attic/muse2-oom/muse2/al/sig.h
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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.
+//=============================================================================
+
+#ifndef __SIG_H__
+#define __SIG_H__
+
+#include <map>
+
+#include "../muse/xml.h"
+class Xml;
+
+namespace AL {
+
+#ifndef MAX_TICK
+#define MAX_TICK (0x7fffffff/100)
+#endif
+
+///class Xml;
+
+//---------------------------------------------------------
+// TimeSignature
+//---------------------------------------------------------
+
+struct TimeSignature {
+ int z, n;
+ TimeSignature() { z = 4; n = 4; }
+ TimeSignature(int a, int b) { z = a; n = b; }
+ bool isValid() const;
+ };
+
+//---------------------------------------------------------
+// Signature Event
+//---------------------------------------------------------
+
+struct SigEvent {
+ TimeSignature sig;
+ unsigned tick; // signature valid from this position
+ int bar; // precomputed
+
+ ///int read(QDomNode);
+ ///void write(Xml&, int) const;
+ int read(Xml&);
+ void write(int, Xml&, int) const;
+
+ SigEvent() { }
+ SigEvent(const TimeSignature& s, unsigned tk) {
+ sig = s;
+ tick = tk;
+ bar = 0;
+ }
+ };
+
+//---------------------------------------------------------
+// SigList
+//---------------------------------------------------------
+
+typedef std::map<unsigned, SigEvent*, std::less<unsigned> > SIGLIST;
+typedef SIGLIST::iterator iSigEvent;
+typedef SIGLIST::const_iterator ciSigEvent;
+typedef SIGLIST::reverse_iterator riSigEvent;
+typedef SIGLIST::const_reverse_iterator criSigEvent;
+
+class SigList : public SIGLIST {
+ int ticks_beat(int N) const;
+ void normalize();
+ int ticksMeasure(const TimeSignature&) const;
+ int ticksMeasure(int z, int n) const;
+
+ public:
+ SigList();
+ void clear();
+ void add(unsigned tick, const TimeSignature& s);
+ //void add(unsigned tick, int z, int n);
+ void del(unsigned tick);
+
+ ///void read(QDomNode);
+ ///void write(Xml&) const;
+ void read(Xml&);
+ void write(int, Xml&) const;
+
+ void dump() const;
+
+ TimeSignature timesig(unsigned tick) const;
+ void timesig(unsigned tick, int& z, int& n) const;
+ void tickValues(unsigned t, int* bar, int* beat, unsigned* tick) const;
+ unsigned bar2tick(int bar, int beat, unsigned tick) const;
+
+ int ticksMeasure(unsigned tick) const;
+ int ticksBeat(unsigned tick) const;
+ unsigned raster(unsigned tick, int raster) const;
+ unsigned raster1(unsigned tick, int raster) const; // round down
+ unsigned raster2(unsigned tick, int raster) const; // round up
+ int rasterStep(unsigned tick, int raster) const;
+ };
+
+extern SigList sigmap;
+
+}
+
+#endif