/*

 * 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: Engine Implementation

 *

 */

#include <stdio.h>

#include <stdlib.h>

#include <assert.h>

#include "xaengine.h"

#include "xaobjectitf.h"

#include "xaengineitf.h"

#include "xathreadsyncitf.h"

#include "xadynintmgmtitf.h"

#include "xaaudioiodevicecapabilitiesitf.h"

#include "xaaudioencodercapabilitiesitf.h"

#include "xaconfigextensionsitf.h"

#include "xathreadsafety.h"

#include "xaframeworkmgr.h"  

/* Static mapping of enumeration XAEngineInterfaces to interface iids */

static const XAInterfaceID* xaEngineItfIIDs[ENGINE_ITFCOUNT] =

    {

    &XA_IID_OBJECT,

    &XA_IID_ENGINE,

    &XA_IID_DYNAMICINTERFACEMANAGEMENT,

    &XA_IID_THREADSYNC,

    /*    &XA_IID_CONFIGEXTENSION,*/

    /*    &XA_IID_DEVICEVOLUME,*/

    &XA_IID_AUDIOIODEVICECAPABILITIES,

    /*    &XA_IID_AUDIODECODERCAPABILITIES,*/

    &XA_IID_AUDIOENCODERCAPABILITIES

    /*

    &XA_IID_CAMERACAPABILITIES,

    &XA_IID_IMAGEDECODERCAPABILITIES,

    &XA_IID_IMAGEENCODERCAPABILITIES,

    &XA_IID_VIDEODECODERCAPABILITIES,

    &XA_IID_VIDEOENCODERCAPABILITIES

     */

    };

/*****************************************************************************

 * Global methods

 *****************************************************************************/

/* XAResult XAEngineImpl_Create

 * Description: Create object

 */

XAresult XAEngineImpl_Create(XAObjectItf *pEngine, XAuint32 numOptions,

        const XAEngineOption *pEngineOptions, XAuint32 numInterfaces,

        const XAInterfaceID *pInterfaceIds,

        const XAboolean *pInterfaceRequired)

    {

    XAEngineImpl* pImpl = NULL;

    XAObjectItfImpl* pBaseObj = NULL;

    XAuint32 itfIndex = 0;

    //XAboolean optEnabled = XA_BOOLEAN_FALSE;

    XAboolean threadSafeEnabled = XA_BOOLEAN_TRUE;

    DEBUG_API("->XAEngineImpl_Create");

    if (!pEngine)

        {

        /* invalid parameter */

        return XA_RESULT_PARAMETER_INVALID;

        }

    /* check engine options */

    if (pEngineOptions && (numOptions != 0))

        {

        int i;

        for (i = 0; i < numOptions; i++)

            {

            if (pEngineOptions[i].feature == XA_ENGINEOPTION_LOSSOFCONTROL)

                {

                //XAboolean optEnabled = pEngineOptions[i].data;

                // TODO: do something with the above value or else remove the code

                }

            if (pEngineOptions[i].feature == XA_ENGINEOPTION_THREADSAFE)

                {

                threadSafeEnabled = pEngineOptions[i].data;

                }

            }

        }

    /* instantiate object implementation */

    pImpl = (XAEngineImpl*) calloc(1, sizeof(XAEngineImpl));

    if (!pImpl)

        {

        /* memory allocation failed */

        return XA_RESULT_MEMORY_FAILURE;

        }

    pBaseObj = &pImpl->baseObj;

    /* Initialize base object default implementation */

    XAObjectItfImpl_Init(pBaseObj, ENGINE_ITFCOUNT, xaEngineItfIIDs,

            XAEngineImpl_DoRealize, XAEngineImpl_DoResume,

            XAEngineImpl_FreeResources);

    /* Mark interfaces that need to be exposed */

    /* Implicit and mandated interfaces */

    pBaseObj->interfaceMap[ENGINE_ENGINEITF].required = XA_BOOLEAN_TRUE;

    pBaseObj->interfaceMap[ENGINE_DIMITF].required = XA_BOOLEAN_TRUE;

    pBaseObj->interfaceMap[ENGINE_THREADSYNCITF].required = XA_BOOLEAN_TRUE;

    pBaseObj->interfaceMap[ENGINE_AUDIOIODEVICECAPAITF].required

            = XA_BOOLEAN_TRUE;

    pBaseObj->interfaceMap[ENGINE_AUDIOENCODERCAPAITF].required

            = XA_BOOLEAN_TRUE;

    /* Explicit interfaces */

    if ((numInterfaces != 0) && pInterfaceIds && pInterfaceRequired)

        {

        /* Check required interfaces */

        for (itfIndex = 0; itfIndex < numInterfaces; itfIndex++)

            {

            /* If mapEntry is null then required interface is not supported.*/

            XAObjItfMapEntry *entry = XAObjectItfImpl_GetItfEntry(

                    (XAObjectItf) &(pBaseObj), pInterfaceIds[itfIndex]);

            if (!entry)

                {

                if (pInterfaceRequired[itfIndex])

                    {

                    /* required interface cannot be accommodated - fail creation */

                    XAObjectItfImpl_Destroy((XAObjectItf) &(pBaseObj));

                    return XA_RESULT_FEATURE_UNSUPPORTED;

                    }

                else

                    {

                    DEBUG_INFO("Requested (not required) interface not found - continue creation");

                    }

                }

            else

                {

                entry->required = XA_BOOLEAN_TRUE;

                }

            }

        }

    /* Initialize XAEngineImpl variables */

    if (threadSafeEnabled)

        {

        XAresult ret = XA_RESULT_SUCCESS;

        pImpl->isThreadSafe = threadSafeEnabled;

        ret = XAThreadSafety_Init(threadSafeEnabled);

        if (ret != XA_RESULT_SUCCESS)

            {

            DEBUG_INFO_A1("Unable to initialize thread safety - ret:%x", ret );

            }

        }

    /* Set ObjectItf to point to newly created object */

    *pEngine = ((XAObjectItf) &(pBaseObj->self));

    DEBUG_API("<-XAEngineImpl_Create");

    return XA_RESULT_SUCCESS;

    }

/* XAResult XAEngineImpl_QueryNumSupportedInterfaces

 * Description: Statically query number of supported interfaces

 */

XAresult XAEngineImpl_QueryNumSupportedInterfaces(

        XAuint32 *pNumSupportedInterfaces)

    {

    DEBUG_API("->XAEngineImpl_QueryNumSupportedInterfaces");

    if (pNumSupportedInterfaces)

        {

        *pNumSupportedInterfaces = ENGINE_ITFCOUNT;

        DEBUG_API("<-XAEngineImpl_QueryNumSupportedInterfaces");

        return XA_RESULT_SUCCESS;

        }

    else

        {

        return XA_RESULT_PARAMETER_INVALID;

        }

    }

/* XAResult XAEngineImpl_QuerySupportedInterfaces

 * Description: Statically query supported interfaces

 */

XAresult XAEngineImpl_QuerySupportedInterfaces(XAuint32 index,

        XAInterfaceID *pInterfaceId)

    {

    DEBUG_API("->XAEngineImpl_QuerySupportedInterfaces");

    if (index >= ENGINE_ITFCOUNT || !pInterfaceId)

        {

        if (pInterfaceId)

            {

            *pInterfaceId = XA_IID_NULL;

            }

        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");

        DEBUG_API("<-XAEngineImpl_QuerySupportedInterfaces");

        return XA_RESULT_PARAMETER_INVALID;

        }

    else

        {

        *pInterfaceId = *(xaEngineItfIIDs[index]);

        DEBUG_API("<-XAEngineImpl_QuerySupportedInterfaces");

        return XA_RESULT_SUCCESS;

        }

    }

/*****************************************************************************

 * base object XAObjectItfImpl methods

 *****************************************************************************/

/* XAresult XAEngineImpl_DoRealize

 * Description: Realize all implicit and explicitly wanted interfaces.

 * Create and initialize implementation-specific variables.

 * Called from base object XAObjectItfImpl

 */

XAresult XAEngineImpl_DoRealize(XAObjectItf self)

    {

    XAuint8 itfIdx = 0;

    XAObjectItfImpl* pObj = (XAObjectItfImpl*) (*self);

    XAEngineImpl* pObjImpl = (XAEngineImpl*) (pObj);

    XAresult ret = XA_RESULT_SUCCESS;

    DEBUG_API("->XAEngineImpl_DoRealize");

    /* check casting from correct pointer type */

    if (!pObjImpl || pObj != pObjImpl->baseObj.self)

        {

        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");

        DEBUG_API("<-XAEngineImpl_DoRealize");

        /* invalid parameter */

        return XA_RESULT_PARAMETER_INVALID;

        }

    /* Table containing use-case framework map */

    pObjImpl->frameworkMap = XAFrameworkMgr_CreateFrameworkMap();

    if (pObjImpl->frameworkMap == NULL)

        {

        DEBUG_ERR("XA_RESULT_MEMORY_FAILURE");

        DEBUG_API("<-XAEngineImpl_DoRealize");

        /* memory allocation failed */

        return XA_RESULT_MEMORY_FAILURE;

        }

    /* Create capabilities list */

    ret = XACapabilitiesMgr_CreateCapabilitieList(pObjImpl->frameworkMap,

            &(pObjImpl->capabilities));

    if (ret != XA_RESULT_SUCCESS)

        {

        return ret;

        }

    /* Realize all implicit and explicitly wanted interfaces */

    for (itfIdx = 0; itfIdx < ENGINE_ITFCOUNT; itfIdx++)

        {

        if (!(pObj->interfaceMap[itfIdx].pItf)

                && pObj->interfaceMap[itfIdx].required)

            {

            void *pItf = NULL;

            switch (itfIdx)

                {

                case ENGINE_ENGINEITF:

                    pItf = XAEngineItfImpl_Create(pObjImpl->frameworkMap,

                            pObjImpl->capabilities);

                    break;

                case ENGINE_THREADSYNCITF:

                    pItf = XAThreadSyncItfImpl_Create();

                    break;

                case ENGINE_DIMITF:

                    pItf = XADIMItfImpl_Create();

                    break;

                case ENGINE_AUDIOIODEVICECAPAITF:

                    pItf = XAAudIODevCapaItfImpl_Create(

                            pObjImpl->capabilities);

                    break;

                case ENGINE_AUDIOENCODERCAPAITF:

                    pItf = XAAudioEncoderCapabilitiesItfImpl_Create(

                            pObjImpl->capabilities);

                    break;

                default:

                    break;

                }

            if (!pItf)

                {

                /* memory allocation failed */

                return XA_RESULT_MEMORY_FAILURE;

                }

            else

                {

                pObj->interfaceMap[itfIdx].pItf = pItf;

                }

            }

        }

    pObj->state = XA_OBJECT_STATE_REALIZED;

    DEBUG_API("<-XAEngineImpl_DoRealize");

    return XA_RESULT_SUCCESS;

    }

/* XAresult XAEngineImpl_DoResume

 * Description: Resume object from suspended state

 */

XAresult XAEngineImpl_DoResume(XAObjectItf self)

    {

    return XA_RESULT_PRECONDITIONS_VIOLATED;

    }

/* void XAEngineImpl_FreeResources

 * Description: Free all resources reserved at XA%ExampleObject%Impl_DoRealize()

 */

void XAEngineImpl_FreeResources(XAObjectItf self)

    {

    XAObjectItfImpl* pObj = (XAObjectItfImpl*) (*self);

    XAEngineImpl* pImpl = (XAEngineImpl*) (*self);

    XAuint8 itfIdx = 0;

    DEBUG_API("->XAEngineImpl_FreeResources");

    assert( pObj && pImpl && pObj == pObj->self );

    /* free all allocated interfaces */

    for (itfIdx = 0; itfIdx < ENGINE_ITFCOUNT; itfIdx++)

        {

        void *pItf = pObj->interfaceMap[itfIdx].pItf;

        if (pItf)

            {

            switch (itfIdx)

                {

                case ENGINE_ENGINEITF:

                    XAEngineItfImpl_Free(pItf);

                    break;

                case ENGINE_THREADSYNCITF:

                    XAThreadSyncItfImpl_Free(pItf);

                    break;

                case ENGINE_DIMITF:

                    XADIMItfImpl_Free(pItf);

                    break;

                case ENGINE_AUDIOIODEVICECAPAITF:

                    XAAudIODevCapaItfImpl_Free(pItf);

                    break;

                case ENGINE_AUDIOENCODERCAPAITF:

                    XAAudioEncoderCapabilitiesItfImpl_Free(pItf);

                    break;

                default:

                    break;

                }

            pObj->interfaceMap[itfIdx].pItf = NULL;

            }

        }

    /* free all other allocated resources*/

    /* free framework map */

    XAFrameworkMgr_DeleteFrameworkMap(&pImpl->frameworkMap);

    /* free capabilities list */

    XACapabilitiesMgr_DeleteCapabilitieList(&pImpl->capabilities);

    XAThreadSafety_Destroy();

    DEBUG_API("<-XAEngineImpl_FreeResources");

    return;

    }

/* END OF FILE */