javauis/mmapi_qt/baseline/inc/cmmamidiplayer.h
branchRCL_3
changeset 24 0fd27995241b
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/javauis/mmapi_qt/baseline/inc/cmmamidiplayer.h	Tue May 11 16:07:20 2010 +0300
@@ -0,0 +1,116 @@
+/*
+* Copyright (c) 2002-2007 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  This class is used for playing MIDI.
+*
+*/
+
+
+#ifndef CMMAMIDIPLAYER_H
+#define CMMAMIDIPLAYER_H
+
+
+//  INCLUDES
+#include "cmmaplayer.h"
+#include <midiclientutility.h>
+#include <e32base.h>
+
+// CONSTANTS
+_LIT(KMMAMIDIPlayer, "MIDIPlayer");
+
+const TMdaPriorityPreference KMMAMIDIPriorityPreference =
+    EMdaPriorityPreferenceTimeAndQuality;
+
+// FORWARD DECLARATIONS
+class MMAFunctionServer;
+
+//  CLASS DECLARATION
+/**
+*   This class is used for playing MIDI.
+*
+*
+*/
+
+class CMMAMIDIPlayer : public CMMAPlayer, public MMidiClientUtilityObserver
+{
+public: // Construction
+    static CMMAMIDIPlayer* NewLC(const TDesC& aContentType,
+                                 TFileName aFileName);
+
+    //   Destructor
+    ~CMMAMIDIPlayer();
+
+protected:
+    //   C++ constructor
+    CMMAMIDIPlayer(TFileName aFileName);
+    void ConstructL(const TDesC& aContentType);
+
+public: // new methods
+    IMPORT_C CMidiClientUtility* MidiClient() const;
+    void ReInitializeMidiEngineL(const TDesC8* aMidiSequence);
+    void addObserverL(MMidiClientUtilityObserver* aObserver);
+
+public: // from CMMAPlayer
+    void StartL();
+    void StopL(TBool aPostEvent);
+    void RealizeL();
+    void PrefetchL();
+    void DeallocateL();
+    void GetDuration(TInt64* aDuration);
+    void SetMediaTimeL(TInt64* aTime);
+    void GetMediaTime(TInt64* aMediaTime);
+    void CloseL();
+    const TDesC& Type();
+
+public: // from CMMAPlayer/MMMASourceStreamListener
+    void ReadCompletedL(TInt aStatus, const TDesC8& aData);
+    void PlayCompleteL(TInt aError);
+
+public: // from MMidiClientUtilityObserver
+    void MmcuoStateChanged(TMidiState aOldState,TMidiState aNewState,const TTimeIntervalMicroSeconds& aTime,TInt aError);
+    void MmcuoTempoChanged(TInt aMicroBeatsPerMinute);
+    void MmcuoVolumeChanged(TInt aChannel,TReal32 aVolumeInDecibels);
+    void MmcuoMuteChanged(TInt aChannel,TBool aMuted);
+    void MmcuoSyncUpdate(const TTimeIntervalMicroSeconds& aMicroSeconds,TInt64 aMicroBeats);
+    void MmcuoMetaDataEntryFound(const TInt aMetaDataEntryId,const TTimeIntervalMicroSeconds& aPosition);
+    void MmcuoMipMessageReceived(const RArray<TMipMessageEntry>& aMessage);
+    void MmcuoPolyphonyChanged(TInt aNewPolyphony);
+    void MmcuoInstrumentChanged(TInt aChannel,TInt aBankId,TInt aInstrumentId);
+
+protected:
+    void CloseClientUtility();
+
+private: // Data
+    CMidiClientUtility* iMidi;
+
+    // CActiveShedulerWait object for reinitializing midi engine
+    CActiveSchedulerWait* iActiveSchedulerWait;
+
+    // Array for subsequent MMidiClientUtilityObservers
+    RPointerArray<MMidiClientUtilityObserver> iObservers;
+
+    TFileName iFileName;
+
+    /**
+    * Cached media time
+    */
+    TInt64 iMediaTime;
+
+    /**
+    * The time that will be sent with CMMAPlayerEvent::EStarted
+    * (may be different from iMediaTime).
+    */
+    TInt64 iStartedEventTime;
+};
+
+#endif // CMMAMIDIPLAYER_H