/*

* Copyright (c) 2009 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 "javax_microedition_m3g_Loader.h"

#include <ezlib.h>

/*!

 * \brief Symbian implementation of the block inflation function for

 * the Loader class

 */

static M3Gsizei m3gSymbianInflateBlock1(M3Gsizei srcLength,

                                        const M3Gubyte *src,

                                        M3Gsizei dstLength,

                                        M3Gubyte *dst)

{

    unsigned long len = (unsigned long) dstLength;

    if (uncompress((Bytef *) dst, &len,

                   (const Bytef *) src, (uLong) srcLength) != Z_OK)

    {

        return 0;

    }

    return (M3Gsizei) len;

}

JNIEXPORT jboolean JNICALL Java_javax_microedition_m3g_Loader__1inflate

(JNIEnv* aEnv, jclass, jbyteArray aCompressed, jbyteArray aInflated)

{

    M3Guint result;

    M3Gubyte *compressedData = (M3Gubyte *)aEnv->GetByteArrayElements(aCompressed, NULL);

    if (compressedData == NULL)

    {

        M3G_RAISE_EXCEPTION(aEnv, "java/lang/OutOfMemoryError");

        return 0;

    }

    M3Gint compressedLength = aEnv->GetArrayLength(aCompressed);

    M3Gubyte *inflatedData = (M3Gubyte *)aEnv->GetByteArrayElements(aInflated, NULL);

    if (inflatedData == NULL)

    {

        if (compressedData)

            aEnv->ReleaseByteArrayElements(aCompressed, (jbyte*)compressedData, JNI_ABORT);

        M3G_RAISE_EXCEPTION(aEnv, "java/lang/OutOfMemoryError");

        return 0;

    }

    M3Gint inflatedLength = aEnv->GetArrayLength(aInflated);

    M3G_DO_LOCK

    if (m3gSymbianInflateBlock1(compressedLength, compressedData,

                                inflatedLength, inflatedData))

    {

        result = TRUE;

    }

    else

    {

        result = FALSE;

    }

    M3G_DO_UNLOCK(aEnv)

    if (aCompressed)

    {

        aEnv->ReleaseByteArrayElements(aCompressed, (jbyte*)compressedData, JNI_ABORT);

    }

    if (aInflated)

    {

        aEnv->ReleaseByteArrayElements(aInflated, (jbyte*)inflatedData, 0);

    }

    return result;

}

JNIEXPORT jint JNICALL Java_javax_microedition_m3g_Loader__1ctor

(JNIEnv* aEnv, jclass, jint aM3g)

{

    M3G_DO_LOCK

    M3GLoader loader = (M3GLoader)m3gCreateLoader((M3GInterface)aM3g);

    M3G_DO_UNLOCK(aEnv)

    return (M3Guint)loader;

}

JNIEXPORT jint JNICALL Java_javax_microedition_m3g_Loader__1decodeData

(JNIEnv* aEnv, jclass, jint aLoader, jint aOffset, jbyteArray aDataArray)

{

    /* null array is never passed */

    M3Gubyte *data = (M3Gubyte *)aEnv->GetByteArrayElements(aDataArray, NULL);

    if (data == NULL)

    {

        M3G_RAISE_EXCEPTION(aEnv, "java/lang/OutOfMemoryError");

        return 0;

    }

    M3Gint bytes = aEnv->GetArrayLength(aDataArray);

    M3GLoader loader = (M3GLoader)aLoader;

    M3G_DO_LOCK

    jint retVal = m3gDecodeData(loader, bytes, data + aOffset);

    M3G_DO_UNLOCK(aEnv)

    if (aDataArray)

    {

        aEnv->ReleaseByteArrayElements(aDataArray, (jbyte*)data, JNI_ABORT);

    }

    return retVal;

}

JNIEXPORT jint JNICALL Java_javax_microedition_m3g_Loader__1getLoadedObjects

(JNIEnv* aEnv, jclass, jint aLoader, jintArray aObjectArray)

{

    M3GObject *objects = NULL;

    if (aObjectArray)

    {

        objects = (M3GObject *)aEnv->GetIntArrayElements(aObjectArray, NULL);

        if (objects == NULL)

        {

            M3G_RAISE_EXCEPTION(aEnv, "java/lang/OutOfMemoryError");

            return 0;

        }

    }

    M3GLoader loader = (M3GLoader)aLoader;

    M3G_DO_LOCK

    jint retVal = m3gGetLoadedObjects(loader, objects);

    M3G_DO_UNLOCK(aEnv)

    if (aObjectArray)

    {

        aEnv->ReleaseIntArrayElements(aObjectArray, (jint*)objects, 0);

    }

    return retVal;

}

JNIEXPORT void JNICALL Java_javax_microedition_m3g_Loader__1setExternalReferences

(JNIEnv* aEnv, jclass, jint aLoader, jintArray aObjectArray)

{

    /* null array is never passed */

    M3GObject *xRefs = (M3GObject *)aEnv->GetIntArrayElements(aObjectArray, NULL);

    if (xRefs == NULL)

    {

        M3G_RAISE_EXCEPTION(aEnv, "java/lang/OutOfMemoryError");

        return;

    }

    M3Gint numXRefs = aEnv->GetArrayLength(aObjectArray);

    M3GLoader loader = (M3GLoader)aLoader;

    M3G_DO_LOCK

    m3gImportObjects(loader, numXRefs, xRefs);

    M3G_DO_UNLOCK(aEnv)

    aEnv->ReleaseIntArrayElements(aObjectArray, (jint*)xRefs, JNI_ABORT);

}

JNIEXPORT jint JNICALL Java_javax_microedition_m3g_Loader__1getObjectsWithUserParameters

(JNIEnv* aEnv, jclass, jint aLoader, jintArray aObjectArray)

{

    M3GObject *objects = NULL;

    if (aObjectArray)

    {

        objects = (M3GObject *)aEnv->GetIntArrayElements(aObjectArray, NULL);

        if (objects == NULL)

        {

            M3G_RAISE_EXCEPTION(aEnv, "java/lang/OutOfMemoryError");

            return 0;

        }

    }

    M3GLoader loader = (M3GLoader)aLoader;

    M3G_DO_LOCK

    jint retVal = m3gGetObjectsWithUserParameters(loader, objects);

    M3G_DO_UNLOCK(aEnv)

    if (objects)

    {

        aEnv->ReleaseIntArrayElements(aObjectArray, (jint*)objects, 0);

    }

    return retVal;

}

JNIEXPORT jint JNICALL Java_javax_microedition_m3g_Loader__1getNumUserParameters

(JNIEnv* aEnv, jclass, jint aLoader, jint aObj)

{

    M3GLoader loader = (M3GLoader)aLoader;

    M3G_DO_LOCK

    jint numParams = (jint)m3gGetNumUserParameters(loader, aObj);

    M3G_DO_UNLOCK(aEnv)

    return numParams;

}

JNIEXPORT jint JNICALL Java_javax_microedition_m3g_Loader__1getUserParameter

(JNIEnv* aEnv, jclass, jint aLoader, jint aObj, jint aIndex, jbyteArray aDataArray)

{

    M3Gbyte *data = NULL;

    if (aDataArray)

    {

        data = (M3Gbyte *)aEnv->GetByteArrayElements(aDataArray, NULL);

        if (data == NULL)

        {

            M3G_RAISE_EXCEPTION(aEnv, "java/lang/OutOfMemoryError");

            return 0;

        }

    }

    M3GLoader loader = (M3GLoader)aLoader;

    M3G_DO_LOCK

    jint retVal = m3gGetUserParameter(loader, aObj, aIndex, data);

    M3G_DO_UNLOCK(aEnv)

    if (data)

    {

        aEnv->ReleaseByteArrayElements(aDataArray, (jbyte*)data, 0);

    }

    return retVal;

}