/*

* 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:

*

*/

#include <e32def.h> // FIX FOR MAKE_TINT64 warning

#include <e32std.h>

#include "javax_microedition_lcdui_Buffer.h"

#include "CMIDBuffer.h"

#include "CMIDToolkit.h"

JNIEXPORT jint JNICALL

Java_javax_microedition_lcdui_Buffer__1open(JNIEnv* aJni, jobject aBuffer, jint aEventServerHandle)

{

    return CMIDBuffer::New(*aJni, aBuffer, aEventServerHandle);

}

JNIEXPORT void JNICALL

Java_javax_microedition_lcdui_Buffer__1close

(

    JNIEnv* aJni,

    jobject /*aBuffer*/,

    jint    aHandle

)

{

    JavaUnhand<CMIDBuffer>(aHandle)->Dispose(*aJni);

}

JNIEXPORT void JNICALL

Java_javax_microedition_lcdui_Buffer__1flush

(

    JNIEnv*     aJni,

    jobject     /* aObj */,

    jint        aBuffer,

    jintArray   aArray,

    jint        aCount

)

{

    ASSERT(aBuffer);

    ASSERT(aArray);

    ASSERT(aCount > 0);

    //

    // Flusher condition variable ensures that we cannot get here

    // whilst the server is processing the buffer. Hence it is safe to

    // access the buffer directly. If we wished to support a cicular

    // buffer, this could be done with a lightweight mutex.

    //

    CMIDBuffer& buffer = * JavaUnhand<CMIDBuffer>(aBuffer);

    buffer.RequestProcess(*aJni, aArray, aCount);

}

#ifdef GRAPHICS_BUFFER_DRAWPIXELS

JNIEXPORT jint JNICALL

Java_javax_microedition_lcdui_Buffer__1alloc

(

    JNIEnv*     aJni,

    jobject     /* aObj */,

    jintArray   aArray,

    jint        aOffset,

    jint        aLength

)

{

    jint* address = (jint*)User::Alloc(aLength*sizeof(jint));

    if (!address)

    {

        return KErrNoMemory;

    }

    aJni->GetIntArrayRegion(aArray, aOffset, aLength, address);

    return JavaMakeHandle(address);

}

JNIEXPORT void JNICALL

Java_javax_microedition_lcdui_Buffer__1free

(

    JNIEnv*     /*aJni*/,

    jobject     /* aObj */,

    jint        aAddress

)

{

    User::Free(JavaUnhand<jint*>(aAddress));

}

#endif