/*

* 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 CMMARateControl

*

*/

#include <jutils.h>

#include "com_nokia_microedition_media_control_RateControl.h"

#include "cmmaeventsource.h"

#include "cmmaratecontrol.h"

#include <jdebug.h>

//

// Wrapper functions which are needed in event source execution.

// If method to be called can leave ExecuteTrap must be used,

// otherwise Execute and ExecuteV can be used.

//

//

/**

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

 * Type of of the function pointer must be

 * TInt CMMARateControl::aFunc( TInt aData )

 *

 * @param aRateControl CMMARateControl pointer.

 * @param aFunc Pointer to the CMMARateControl method.

 * @param aData Parameter to passed to the aFunc method

 * @param aReturnValue The return value of the aFunc will

 *                     be assigned to this parameter.

 */

LOCAL_C void ReturnIntParamIntFuncL(CMMARateControl* aRateControl,

                                    TInt(CMMARateControl::*aFuncL)(TInt),

                                    TInt aData,

                                    TInt* aReturnValue)

{

    // call TInt CMMARateControl::aFunc( TInt aData ) method.

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

}

/**

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

 * Type of of the function pointer must be

 * TInt CMMARateControl::aFunc()

 *

 * @param aRateControl CMMARateControl pointer.

 * @param aFunc Pointer to the CMMARateControl method.

 * @param aReturnValue The return value of the aFunc will

 *                     be assigned to this parameter.

 */

LOCAL_C void ReturnIntFuncL(CMMARateControl* aRateControl,

                            TInt(CMMARateControl::*aFuncL)(),

                            TInt* aReturnValue)

{

    // call TInt CMMARateControl::aFunc() method.

    *aReturnValue = (aRateControl->*aFuncL)();

}

//

// JNI functions. Prototypes are generated and commented in Java class

// com_nokia_microedition_media_control_RateControl

//

/**

 * JNI function from com.nokia.microedition.media.control.RateControl

 */

JNIEXPORT jint JNICALL

Java_com_nokia_microedition_media_control_RateControl__1getMinRate

(JNIEnv*,

 jobject,

 jint aControlHandle,

 jint aEventSourceHandle)

{

    // Get pointer to native event source.

    CMMAEventSource* eventSource =

        JavaUnhand< CMMAEventSource >(aEventSourceHandle);

    CMMARateControl* RateControl =

        JavaUnhand< CMMARateControl >(aControlHandle);

    TInt returnValue = 0;

    // Get value or the default.

    TInt error;

    error = eventSource->ExecuteTrap(&ReturnIntFuncL,

                                     RateControl,

                                     &CMMARateControl::MinRateL,

                                     &returnValue);

    DEBUG_INT("RateControl__1getMinRate return value %d", returnValue);

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

}

/**

 * JNI function from com.nokia.microedition.media.control.RateControl

 */

JNIEXPORT jint JNICALL

Java_com_nokia_microedition_media_control_RateControl__1getRate

(JNIEnv*,

 jobject,

 jint aControlHandle,

 jint aEventSourceHandle)

{

    // Get pointer to native event source.

    CMMAEventSource* eventSource =

        JavaUnhand< CMMAEventSource >(aEventSourceHandle);

    CMMARateControl* RateControl =

        JavaUnhand< CMMARateControl >(aControlHandle);

    TInt returnValue = 0;

    // Get actual rate or the default value to the returnValue.

    TInt error;

    error = eventSource->ExecuteTrap(&ReturnIntFuncL,

                                     RateControl,

                                     &CMMARateControl::RateL,

                                     &returnValue);

    DEBUG_INT("RateControl__1getRate return value %d", returnValue);

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

}

/**

 * JNI function from com.nokia.microedition.media.control.RateControl

 */

JNIEXPORT jint JNICALL

Java_com_nokia_microedition_media_control_RateControl__1setRate

(JNIEnv*,

 jobject,

 jint aControlHandle,

 jint aEventSourceHandle,

 jint aRate)

{

    // Get pointer to native event source.

    CMMAEventSource* eventSource =

        JavaUnhand< CMMAEventSource >(aEventSourceHandle);

    CMMARateControl* RateControl =

        JavaUnhand< CMMARateControl >(aControlHandle);

    // Return value will be actual rate set or default value if rate is not

    // available.

    TInt returnValue = 0;

    TInt error;

    error = eventSource->ExecuteTrap(&ReturnIntParamIntFuncL,

                                     RateControl,

                                     &CMMARateControl::SetRateL,

                                     aRate,

                                     &returnValue);

    DEBUG_INT("RateControl__1setRate return value %d", returnValue);

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

}

/**

 * JNI function from com.nokia.microedition.media.control.RateControl

 */

JNIEXPORT jint JNICALL

Java_com_nokia_microedition_media_control_RateControl__1getMaxRate

(JNIEnv*,

 jobject,

 jint aControlHandle,

 jint aEventSourceHandle)

{

    // Get pointer to native event source.

    CMMAEventSource* eventSource =

        JavaUnhand< CMMAEventSource >(aEventSourceHandle);

    CMMARateControl* RateControl =

        JavaUnhand< CMMARateControl >(aControlHandle);

    TInt returnValue = 0;

    TInt error;

    error = eventSource->ExecuteTrap(&ReturnIntFuncL,

                                     RateControl,

                                     &CMMARateControl::MaxRateL,

                                     &returnValue);

    DEBUG_INT("RateControl__1getMaxRate return value %d", returnValue);

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

}

//  END OF FILE