Play selection / cursor

Sources/VLDocument.h

@@ -11,6 +11,7 @@
 #import "VLModel.h"
 #import <Cocoa/Cocoa.h>
 #import "VLKeyValueUndo.h"
+#import <AudioToolbox/AudioToolbox.h>
 
 @class VLSheetWindow;
 
@@ -56,7 +57,7 @@ enum {
 	NSMutableDictionary*validTmpFiles;
 	int					repeatVolta;
 	bool				brandNew;
-	bool				hasMusicSequence;
+	MusicSequence       musicSequence;
 	VLSheetWindow *		sheetWin;
 	VLKeyValueUndo*		undo;
 	VLKeyValueUndo*		staffMetrics;

Sources/VLDocument.mm

@@ -102,7 +102,7 @@
 		vcsWrapper			= nil;
 		repeatVolta			= 2;
 		brandNew			= true;
-		hasMusicSequence	= false;
+		musicSequence       = nil;
 		playRate			= 1.0;
 		validTmpFiles		= [[NSMutableDictionary alloc] initWithCapacity:10];
 		[self setHasUndoManager:YES];
@@ -138,7 +138,7 @@
 
 - (void)updateChangeCount:(NSDocumentChangeType)changeType
 {
-	hasMusicSequence = false;
+	musicSequence   = nil;
 	[validTmpFiles removeAllObjects];
 	[super updateChangeCount:changeType];
 }
@@ -458,15 +458,16 @@
 
 - (void) playSong
 {
-	if (hasMusicSequence) {
+	if (musicSequence) {
+		void (^finalizer)() = [sheetWin willPlaySequence:musicSequence];
 		VLSoundOut::Instance()->PlaySequence(NULL);
+        finalizer();
 	} else {
 		[self createTmpFileWithExtension:@"mid" ofType:VLMIDIType];
 
-		MusicSequence	music;
-		NewMusicSequence(&music);
+		NewMusicSequence(&musicSequence);
 
-        MusicSequenceFileLoad(music, (CFURLRef)[self fileURLWithExtension:@"mid"], 
+        MusicSequenceFileLoad(musicSequence, (CFURLRef)[self fileURLWithExtension:@"mid"], 
                               0, 0);
 
 		size_t countIn = 0;
@@ -477,14 +478,14 @@
 			case 0x608:
 				countIn = 2;
 			}
-		VLMIDIWriter annotate(music, countIn);
+		VLMIDIWriter annotate(musicSequence, countIn);
 		annotate.Visit(*song);
 	
-		hasMusicSequence 	= true;
-		[sheetWin willPlaySequence:music];
 		baseTempo			= songTempo;
-		VLSoundOut::Instance()->SetPlayRate(playRate);
-		VLSoundOut::Instance()->PlaySequence(music);
+		void (^finalizer)() = [sheetWin willPlaySequence:musicSequence];
+ 		VLSoundOut::Instance()->SetPlayRate(playRate);
+		VLSoundOut::Instance()->PlaySequence(musicSequence);
+        finalizer();
  	}
     [self setPlayElements:[self playElements]];
 }
@@ -494,7 +495,7 @@
 	NSString * savedGroove	= songGroove;
 	[validTmpFiles removeObjectForKey:@"mma"]; 
 	[validTmpFiles removeObjectForKey:@"mid"]; 
-	hasMusicSequence = false;
+	musicSequence    = nil;
 	songGroove	   	 = groove;
 	previewRange	 = sections;
 	playElements	|= kVLPlayGroovePreview;
@@ -503,7 +504,7 @@
 	songGroove		 = savedGroove;
 	[validTmpFiles removeObjectForKey:@"mma"]; 
 	[validTmpFiles removeObjectForKey:@"mid"]; 
-	hasMusicSequence = false;
+	musicSequence    = nil;
 }
 
 - (NSPrintOperation *)printOperationWithSettings:(NSDictionary *)printSettings 

Sources/VLMIDIWriter.cpp

@@ -11,6 +11,50 @@
 #include "VLMIDIWriter.h"
 #include <AudioToolbox/AudioToolbox.h>
 
+VLMIDIUtilities::VLMIDIUtilities(MusicSequence music)
+    : fMusic(music)
+{
+}
+
+MusicTimeStamp VLMIDIUtilities::Length()
+{	
+	UInt32 ntracks;
+	MusicSequenceGetTrackCount(fMusic, &ntracks);
+	MusicTimeStamp sequenceLength = 0;
+	for (UInt32 i = 0; i < ntracks; ++i) {
+		MusicTrack track;
+		MusicTimeStamp trackLength;
+		UInt32 propsize = sizeof(MusicTimeStamp);
+		MusicSequenceGetIndTrack(fMusic, i, &track);
+		MusicTrackGetProperty(track, kSequenceTrackProperty_TrackLength,
+							  &trackLength, &propsize);
+		sequenceLength = std::max(sequenceLength, trackLength);
+	}
+	return sequenceLength;
+}
+
+MusicTimeStamp VLMIDIUtilities::Find(VLLocation at)
+{
+	UInt32 ntracks;
+	MusicSequenceGetTrackCount(fMusic, &ntracks);
+    MusicTrack track;
+    MusicSequenceGetIndTrack(fMusic, ntracks-1, &track);
+    MusicEventIterator iter;
+    NewMusicEventIterator(track, &iter);
+    Boolean hasEvent;
+    while (!MusicEventIteratorHasCurrentEvent(iter, &hasEvent) && hasEvent) {
+        MusicTimeStamp          ts;
+        MusicEventType          ty;
+        const VLMIDIUserEvent * data;
+        UInt32                  sz;
+        MusicEventIteratorGetEventInfo(iter, &ts, &ty, (const void **)&data, &sz);
+        if (ty == kMusicEventType_User && data->fAt >= at)
+            return ts;
+        MusicEventIteratorNextEvent(iter);
+    }
+    return Length();
+}
+
 struct VLMetaEvent : MIDIMetaEvent {
 	char fPadding[32];
 	

Sources/VLMIDIWriter.h

@@ -20,6 +20,16 @@ struct VLMIDIUserEvent {
 	VLLocation  fAt;
 };
 
+class VLMIDIUtilities {
+public:
+    VLMIDIUtilities(MusicSequence music);
+    
+    MusicTimeStamp  Length();
+    MusicTimeStamp  Find(VLLocation at);
+public:
+    MusicSequence   fMusic;
+};
+
 class VLMIDIWriter: public VLSongVisitor {
 public:
 	VLMIDIWriter(MusicSequence music, size_t countIn) 

Sources/VLModel.h

@@ -13,6 +13,9 @@
 #include <string>
 #include <inttypes.h>
 
+#ifndef __VLMODEL__
+#define __VLMODEL__
+
 #pragma mark -
 #pragma mark class VLFraction
 
@@ -497,6 +500,8 @@ protected:
 	void VisitChords(VLMeasure & measure);
 };
 
+#endif
+
 // Local Variables:
 // mode:C++
 // End:

Sources/VLSheetViewSelection.h

@@ -36,7 +36,8 @@
 
 - (void)updateMenus;
 
-- (void) willPlaySequence:(MusicSequence)music;
+- (void (^)()) willPlaySequence:(MusicSequence)music;
+- (void) playWasPaused;
 
 @end
 

Sources/VLSheetViewSelection.mm

@@ -17,6 +17,8 @@
 #import "VLSheetWindow.h"
 #import "VLDocument.h"
 #import "VLPitchGrid.h"
+#import "VLSoundOut.h"
+#import "VLMIDIWriter.h"
 
 #pragma mark VLMeasureEditable
 
@@ -126,6 +128,11 @@
 	return self;
 }
 
+- (void)dealloc
+{
+    [fView setNeedsDisplay:YES];
+}
+
 - (void) userEvent:(const VLMIDIUserEvent *) event
 {
 	if (event->fPitch) {
@@ -583,12 +590,28 @@ inline int TimeTag(const VLProperties & prop)
 	[self updateGrooveMenu];
 }
 
-- (void) willPlaySequence:(MusicSequence)music
+- (void (^)()) willPlaySequence:(MusicSequence)music
 {
+    uint32_t    selStart    = fSelStart;
+    uint32_t    selEnd      = fSelEnd;
+    
 	VLEditable * e = 
 		[[VLPlaybackEditable alloc] initWithView:self];
 	[self setEditTarget:e];
 	MusicSequenceSetUserCallback(music, VLSequenceCallback, e);
+    
+    return [Block_copy(^{
+        if (selEnd != kNoMeasure) {
+            VLMIDIUtilities locator(music);
+            VLLocation start = {selStart, VLFraction(0)};
+            VLLocation end   = {selEnd, VLFraction(0)};
+            VLSoundOut::Instance()->SetStart(locator.Find(start));
+            if (selEnd > selStart) {
+                VLSoundOut::Instance()->SetEnd(locator.Find(end));
+                [self selectMeasure:selStart to:selEnd];
+            }
+        }
+    }) autorelease];
 }
 
 @end

Sources/VLSheetWindow.h

@@ -64,7 +64,7 @@
 - (void) setEditTarget:(VLEditable *)editable;
 - (void) startAnimation;
 - (void) stopAnimation;
-- (void) willPlaySequence:(MusicSequence)music;
+- (void (^)()) willPlaySequence:(MusicSequence)music;
 - (void) showLogAndBeep;
 
 @end

Sources/VLSheetWindow.mm

@@ -77,6 +77,8 @@
         soundStopObserver           = [nc addObserverForName:(NSString*)kVLSoundStoppedNotification 
                                                       object:nil queue:oq usingBlock:^(NSNotification *note) {
             [[[self window] toolbar] validateVisibleItems];
+            if (VLSoundOut::Instance()->AtBeginning())
+                [self setEditTarget:nil]; // Kill note cursor if we ran to end
         }];
 	}
 	return self;
@@ -96,8 +98,10 @@
 
 - (void)setEditTarget:(VLEditable *)editable
 {
-    [editTarget autorelease];
-	editTarget = editable;
+    if (editTarget != editable) {
+        [editTarget release];
+        editTarget = editable;
+    }
 }
 
 - (void) startAnimation
@@ -125,9 +129,9 @@
 	[sheetView mouseMoved:event];
 }
 
-- (void) willPlaySequence:(MusicSequence)music
+- (void (^)()) willPlaySequence:(MusicSequence)music
 {
-	[sheetView willPlaySequence:music];
+	return [sheetView willPlaySequence:music];
 }
 
 - (IBAction) togglePlayElements:(id)sender
@@ -183,7 +187,7 @@
 
 - (IBAction) playStop:(id)sender
 {	
-	if (VLSoundOut::Instance()->Playing()) 
+	if (VLSoundOut::Instance()->Playing())
         [self stop:sender];
     else
         [[self document] playSong];

Sources/VLSoundOut.cpp

@@ -9,6 +9,7 @@
 //
 
 #include "VLSoundOut.h"
+#include "VLMIDIWriter.h"
 
 #include <AudioUnit/AudioUnit.h>
 
@@ -31,9 +32,12 @@ public:
 	virtual void 	PlayNote(const VLNote & note);
 	virtual void 	PlayChord(const VLChord & chord); 
 	virtual void   	PlaySequence(MusicSequence music);
+    virtual void    SetStart(MusicTimeStamp start);
+    virtual void    SetEnd(MusicTimeStamp end);
 	virtual void	Stop(bool pause);
 	virtual bool	Playing();
 	virtual bool	AtEnd();
+	virtual bool	AtBeginning();
 	virtual void 	SetPlayRate(float rate);
 	virtual void 	Fwd();
 	virtual void 	Bck();
@@ -47,16 +51,16 @@ protected:
 
 	void			InitSoundOutput(bool fileOutput);
 	virtual void 	SetupOutput(AUNode outputNode);
-	MusicTimeStamp  SequenceLength(MusicSequence music);
     void            SkipTimeInterval();
 
 	AUGraph             fGraph;
 	MusicPlayer         fPlayer;
 private:
 	MusicSequence       fMusic;
-	MusicTimeStamp      fMusicLength;
+	MusicTimeStamp      fMusicEnd;
 	bool                fRunning;
 	bool                fForward;
+    bool                fWasAtEnd;
     float               fPlayRate;
     dispatch_source_t   fMusicPoll;
 
@@ -157,7 +161,7 @@ VLSoundOut::~VLSoundOut()
 }
 
 VLAUSoundOut::VLAUSoundOut()
-	: fMusic(0), fRunning(false), fForward(true)
+	: fMusic(0), fRunning(false), fForward(true), fWasAtEnd(true)
 {
 	InitSoundOutput(false);
     fMusicPoll = dispatch_source_create(DISPATCH_SOURCE_TYPE_TIMER, 0, 0, dispatch_get_main_queue());
@@ -245,8 +249,9 @@ void VLAUSoundOut::PlaySequence(MusicSequence music)
 		Stop(false);
 	
 		fMusic			= music;
-		fMusicLength	= SequenceLength(music);
+		fMusicEnd       = VLMIDIUtilities(music).Length();
         fPlayRate       = 1.0;
+        fWasAtEnd       = true;
 
 		R(MusicSequenceSetAUGraph(fMusic, fGraph));
 		R(MusicPlayerSetSequence(fPlayer, fMusic));
@@ -256,7 +261,19 @@ void VLAUSoundOut::PlaySequence(MusicSequence music)
 	fRunning	= true;
     CFNotificationCenterPostNotification(CFNotificationCenterGetLocalCenter(), kVLSoundStartedNotification, 
                                          NULL, NULL, false);
-    dispatch_source_set_timer(fMusicPoll, DISPATCH_TIME_NOW, 500*NSEC_PER_MSEC, 200*NSEC_PER_MSEC);
+    dispatch_source_set_timer(fMusicPoll, DISPATCH_TIME_NOW, 10*NSEC_PER_MSEC, 200*NSEC_PER_MSEC);
+}
+
+void VLAUSoundOut::SetStart(MusicTimeStamp start)
+{
+    if (fWasAtEnd)
+        MusicPlayerSetTime(fPlayer, start);
+}
+
+void VLAUSoundOut::SetEnd(MusicTimeStamp end)
+{
+    if (fWasAtEnd)
+        fMusicEnd = end;
 }
 
 void VLAUSoundOut::SetMelodyState(VLSoundOut::MelodyState state)
@@ -282,7 +299,7 @@ void VLAUSoundOut::SetPlayRate(float rate)
 		MusicTimeStamp rightNow;
 		MusicPlayerGetTime(fPlayer, &rightNow);
 		MusicSequenceReverse(fMusic);
-		MusicPlayerSetTime(fPlayer, fMusicLength - rightNow);
+		MusicPlayerSetTime(fPlayer, fMusicEnd - rightNow);
 	}
     fPlayRate   = fabsf(rate);
 	MusicPlayerSetPlayRateScalar(fPlayer, fPlayRate);
@@ -343,8 +360,12 @@ void VLAUSoundOut::Slow(float rate)
 
 void VLAUSoundOut::Stop(bool pause)
 {
+    if (!fRunning)
+        return;
+    
 	MusicPlayerStop(fPlayer);
 	fRunning	= false;
+    fWasAtEnd   = false;
 	if (!pause && fMusic) {
 		MusicPlayerSetSequence(fPlayer, NULL);
 		DisposeMusicSequence(fMusic);
@@ -364,7 +385,14 @@ bool VLAUSoundOut::AtEnd()
 {
 	MusicTimeStamp time;
 
-	return !MusicPlayerGetTime(fPlayer, &time) && time >= fMusicLength;
+	return !MusicPlayerGetTime(fPlayer, &time) && time >= fMusicEnd;
+}
+
+bool VLAUSoundOut::AtBeginning()
+{
+	MusicTimeStamp time;
+    
+	return MusicPlayerGetTime(fPlayer, &time) || !time;
 }
 
 void VLAUSoundOut::PollMusic()
@@ -372,6 +400,7 @@ void VLAUSoundOut::PollMusic()
     if (fRunning && AtEnd()) {
         MusicPlayerSetTime(fPlayer, 0); 
         Stop(true);
+        fWasAtEnd   = true;
     }
 }
 
@@ -412,23 +441,6 @@ void VLAUSoundOut::Play(const int8_t * note, size_t numNotes)
 	PlaySequence(music);
 }
 
-MusicTimeStamp VLAUSoundOut::SequenceLength(MusicSequence music)
-{	
-	UInt32 ntracks;
-	MusicSequenceGetTrackCount(music, &ntracks);
-	MusicTimeStamp sequenceLength = 0;
-	for (UInt32 i = 0; i < ntracks; ++i) {
-		MusicTrack track;
-		MusicTimeStamp trackLength;
-		UInt32 propsize = sizeof(MusicTimeStamp);
-		MusicSequenceGetIndTrack(music, i, &track);
-		MusicTrackGetProperty(track, kSequenceTrackProperty_TrackLength,
-							  &trackLength, &propsize);
-		sequenceLength = std::max(sequenceLength, trackLength);
-	}
-	return sequenceLength;
-}
-
 VLAUFileSoundOut::VLAUFileSoundOut(CFURLRef file, OSType dataFormat)
 	: VLAUSoundOut(true), fFile(file), fDataFormat(dataFormat)
 {
@@ -459,7 +471,7 @@ void VLAUFileSoundOut::PlaySequence(MusicSequence music)
 
 	UInt32 			size;
 	UInt32			numFrames	= 512;
-	MusicTimeStamp	musicLen	= SequenceLength(music)+8;
+	MusicTimeStamp	musicLen	= VLMIDIUtilities(music).Length()+8;
 	CFStringRef		name		= 
 		CFURLCopyLastPathComponent(fFile);
 	CAAudioFileFormats * formats = CAAudioFileFormats::Instance();

Sources/VLSoundOut.h

@@ -42,9 +42,12 @@ public:
 	virtual void PlayChord(const VLChord & chord) = 0; 
 	void		 PlayFile(CFDataRef file);
 	virtual void PlaySequence(MusicSequence music) = 0;
+    virtual void SetStart(MusicTimeStamp start) = 0;
+    virtual void SetEnd(MusicTimeStamp end) = 0;
 	virtual void Stop(bool pause=true) = 0;
 	virtual bool Playing() = 0;
 	virtual bool AtEnd() = 0;
+    virtual bool AtBeginning() = 0;
 	virtual void SetPlayRate(float rate) = 0;
     virtual void Fwd() = 0;
     virtual void Bck() = 0;