/*

* Copyright (c) 2002 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 has JNI wrappers for CMMAMIDIControl

*

*/

#include <jutils.h>

#include "com_nokia_microedition_media_control_MIDIControl.h"

#include "cmmaeventsource.h"

#include "cmmamidicontrol.h"

#include <jdebug.h>

/**

 * Local function which is used to call CMMAMIDIControl class method.

 * Type of of the function pointer must be

 * void CMMAMIDIControl::aFunc( TInt, TInt, TInt )

 *

 * @param aMIDIControl CMMAMIDIControl pointer.

 * @param aFunc Pointer to the CMMAMIDIControl method.

 * @param aParam1 Parameter passed to the aFunc.

 * @param aParam2 Parameter passed to the aFunc.

 * @param aParam3 Parameter passed to the aFunc.

 */

LOCAL_C void ReturnVoidParam3IntFuncL(

    CMMAMIDIControl* aMIDIControl,

    void (CMMAMIDIControl::*aFuncL)(TInt, TInt, TInt),

    TInt aParam1,

    TInt aParam2,

    TInt aParam3)

{

    // call TInt CMMAMIDIControl::aFunc( TInt, TInt, TInt ) method.

    (aMIDIControl->*aFuncL)(aParam1, aParam2, aParam3);

}

/**

 * Implements generated JNI function prototype.

 */

JNIEXPORT jint JNICALL

Java_com_nokia_microedition_media_control_MIDIControl__1setProgram

(

    JNIEnv*,

    jobject,

    jint aControlHandle,

    jint aEventSourceHandle,

    jint aChannel,

    jint aBank,

    jint aProgram)

{

    CMMAEventSource* eventSource =

        JavaUnhand< CMMAEventSource >(aEventSourceHandle);

    CMMAMIDIControl* midiControl =

        JavaUnhand< CMMAMIDIControl >(aControlHandle);

    TInt error;

    error = eventSource->ExecuteTrap(&ReturnVoidParam3IntFuncL,

                                     midiControl,

                                     &CMMAMIDIControl::SetProgramL,

                                     aChannel,

                                     aBank,

                                     aProgram);

    return error;

}

/**

 * Local function which is used to call CMMAMIDIControl class method.

 * Type of of the function pointer must be

 * TInt CMMAMIDIControl::aFunc( TInt )

 *

 * @param aMIDIControl CMMAMIDIControl pointer.

 * @param aFunc Pointer to the CMMAMIDIControl method.

 * @param aData Parameter passed to the aFunc.

 * @param aReturnValue The return value of the aFunc will

 *                     be assigned to this parameter.

 */

LOCAL_C void ReturnIntParamIntFuncL(

    CMMAMIDIControl* aMIDIControl,

    TInt(CMMAMIDIControl::*aFuncL)(TInt aData),

    TInt aData,

    TInt* aReturnValue)

{

    // call TInt CMMAMIDIControl::aFunc( TDesC* aData ) method.

    *aReturnValue = (aMIDIControl->*aFuncL)(aData);

}

/**

 * Implements generated JNI function prototype.

 */

JNIEXPORT jint JNICALL

Java_com_nokia_microedition_media_control_MIDIControl__1getChannelVolume

(JNIEnv*,

 jobject,

 jint aControlHandle,

 jint aEventSourceHandle,

 jint aChannel)

{

    // Get pointer to native event source.

    CMMAEventSource* eventSource =

        JavaUnhand< CMMAEventSource >(aEventSourceHandle);

    CMMAMIDIControl* midiControl =

        JavaUnhand< CMMAMIDIControl >(aControlHandle);

    TInt returnValue = 0;

    TInt error;

    error = eventSource->ExecuteTrap(&ReturnIntParamIntFuncL,

                                     midiControl,

                                     &CMMAMIDIControl::ChannelVolumeL,

                                     aChannel,

                                     &returnValue);

    return (error == KErrNone) ? returnValue : error;

}

/**

 * Local function which is used to call CMMAMIDIControl class method.

 * Type of of the function pointer must be

 * void CMMAMIDIControl::aFunc( TInt, TInt )

 *

 * @param aMIDIControl CMMAMIDIControl pointer.

 * @param aFunc Pointer to the CMMAMIDIControl method.

 * @param aParam1 Parameter passed to the aFunc.

 * @param aParam2 Parameter passed to the aFunc.

 */

LOCAL_C void ReturnVoidParamIntIntFuncL(

    CMMAMIDIControl* aMIDIControl,

    void (CMMAMIDIControl::*aFuncL)(TInt, TInt),

    TInt aParam1,

    TInt aParam2)

{

    // call TInt CMMAMIDIControl::aFunc( TInt, TInt ) method.

    (aMIDIControl->*aFuncL)(aParam1, aParam2);

}

/**

 * Implements generated JNI function prototype.

 */

JNIEXPORT jint JNICALL

Java_com_nokia_microedition_media_control_MIDIControl__1setChannelVolume

(JNIEnv*,

 jobject,

 jint aControlHandle,

 jint aEventSourceHandle,

 jint aChannel,

 jint aVolume)

{

    // Get pointer to native event source.

    CMMAEventSource* eventSource =

        JavaUnhand< CMMAEventSource >(aEventSourceHandle);

    CMMAMIDIControl* midiControl =

        JavaUnhand< CMMAMIDIControl >(aControlHandle);

    TInt error = eventSource->ExecuteTrap(&ReturnVoidParamIntIntFuncL,

                                          midiControl,

                                          &CMMAMIDIControl::SetChannelVolumeL,

                                          aChannel,

                                          aVolume);

    return error;

}

/**

 * Local function which can be used to call CMMAMIDIControl class methods.

 * Type of of the function pointer must be

 * TInt CMMAMIDIControl::aFunc( TDesC* aData )

 *

 * @param aMIDIControl CMMAMIDIControl pointer.

 * @param aFunc Pointer to the CMMAMIDIControl method.

 * @param aData Parameter passed to the aFunc.

 * @param aReturnValue The return value of the aFunc will

 *                     be assigned to this parameter.

 */

LOCAL_C void SendMIDIEventFuncL(

    CMMAMIDIControl* aMIDIControl,

    TInt(CMMAMIDIControl::*aFuncL)(const TDesC8* aData),

    const TDesC8* aData,

    TInt* aReturnValue)

{

    // call TInt CMMAMIDIControl::aFunc( TDesC* aData ) method.

    *aReturnValue = (aMIDIControl->*aFuncL)(aData);

}

/**

 * Implements generated JNI function prototype.

 */

JNIEXPORT jint JNICALL

Java_com_nokia_microedition_media_control_MIDIControl__1sendMidiEvent

(JNIEnv* aJni,

 jobject,

 jint aControlHandle,

 jint aEventSourceHandle,

 jbyteArray aData,

 jint aOffset,

 jint aLength)

{

    // Get pointer to native event source.

    CMMAEventSource* eventSource =

        JavaUnhand< CMMAEventSource >(aEventSourceHandle);

    CMMAMIDIControl* midiControl =

        JavaUnhand< CMMAMIDIControl >(aControlHandle);

    // Get pointer to Java data

    jbyte* data = aJni->GetByteArrayElements(aData, NULL);

    // Assert only in debug builds, array size must be checked in Java.

    __ASSERT_DEBUG(aJni->GetArrayLength(aData) >= aOffset + aLength &&

                   aOffset >= 0 &&

                   aLength > 0,

                   User::Invariant());

    // Create descriptor from Java data starting from offset

    jbyte* tempJbyte = &data[ aOffset ];

    TUint8* tempPtr = (TUint8*) tempJbyte;

    TPtrC8 dataPtr(tempPtr, aLength);

    TInt returnValue = 0;

    TInt err = eventSource->ExecuteTrap(&SendMIDIEventFuncL,

                                        midiControl,

                                        &CMMAMIDIControl::SendMIDIEventL,

                                        (const TDesC8*)(&dataPtr),

                                        &returnValue);

    // Java bytes are not needed anymore

    aJni->ReleaseByteArrayElements(aData, data, 0);

    if (err != KErrNone)

    {

        // return error code to Java

        returnValue = err;

    }

    return returnValue;

}

JNIEXPORT jint JNICALL

Java_com_nokia_microedition_media_control_MIDIControl__1reInitializeMidi

(JNIEnv* aJni,

 jobject,

 jint aControlHandle,

 jint aEventSourceHandle,

 jbyteArray aMidiSequence,

 jint aOffset,

 jint aLength)

{

    // Get pointer to native event source.

    CMMAEventSource* eventSource =

        JavaUnhand< CMMAEventSource >(aEventSourceHandle);

    CMMAMIDIControl* midiControl =

        JavaUnhand< CMMAMIDIControl >(aControlHandle);

    // Assert only in debug builds, array size must be checked in Java.

    __ASSERT_DEBUG(aJni->GetArrayLength(aMidiSequence) >= aOffset + aLength &&

                   aOffset >= 0 &&

                   aLength > 0,

                   User::Invariant());

    // Get pointer to Java data

    jbyte* data = aJni->GetByteArrayElements(aMidiSequence, NULL);

    // Create descriptor from Java data starting from offset

    jbyte* tempJbyte = &data[ aOffset ];

    TUint8* tempPtr = (TUint8*) tempJbyte;

    TPtrC8 dataPtr(tempPtr, aLength);

    // SendMIDIEventFuncL has suitable enough footprint for this call too.

    // Return value is not used but needs to be there for method footprint.

    TInt returnValue = 0;

    TInt err = eventSource->ExecuteTrap(&SendMIDIEventFuncL,

                                        midiControl,

                                        &CMMAMIDIControl::ReInitializeMidiL,

                                        (const TDesC8*)(&dataPtr),

                                        &returnValue);

    // Release Java bytes

    aJni->ReleaseByteArrayElements(aMidiSequence, data, 0);

    return err;

}

//  END OF FILE