/*

 * Copyright (c) 2009-2010 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 <ECamOrientationCustomInterface2.h>

#include <ecamfacetrackingcustomapi.h>

#include <ecamusecasehintcustomapi.h>

#include "cxecameradevice.h"

#include "cxeerrormappingsymbian.h"

#include "cxutils.h"

#include "cxedummycamera.h"

#include "OstTraceDefinitions.h"

#ifdef OST_TRACE_COMPILER_IN_USE

#include "cxecameradeviceTraces.h"

#endif

CxeCameraDevice::CxeCameraDevice() :

    mCamera(NULL),

    mAdvancedSettings(NULL),

    mImageProcessor(NULL),

    mCameraSnapshot(NULL),

    mCameraOrientation(NULL),

    mFaceTracking(NULL)

{

}

CxeCameraDevice::~CxeCameraDevice()

{

    CX_DEBUG_ENTER_FUNCTION();

    // Exiting, release all resources

    releaseResources();

    CX_DEBUG_EXIT_FUNCTION();

}

void CxeCameraDevice::deleteCamera()

{

    CX_DEBUG_ENTER_FUNCTION();

    emit prepareForCameraDelete();

    // preparing for new camera, release old resources

    releaseResources();

    CX_DEBUG_EXIT_FUNCTION();

}

void CxeCameraDevice::releaseCamera()

{

    CX_DEBUG_ENTER_FUNCTION();

    if (mCamera) {

        emit prepareForRelease();

        mCamera->Release();

    }

    CX_DEBUG_EXIT_FUNCTION();

}

void CxeCameraDevice::reserveCamera()

{

    CX_DEBUG_ENTER_FUNCTION();

    if (mCamera) {

        emit aboutToReserve();

        mCamera->Reserve();

    }

    CX_DEBUG_EXIT_FUNCTION();

}

void CxeCameraDevice::setCamera( CCamera *camera )

{

    CX_DEBUG_ENTER_FUNCTION();

    if (mCamera != camera) {

        // new camera, delete old resources

        releaseResources();

        mCamera = camera;

        // initialize resources

        CxeError::Id err = initResources();

        emit cameraAllocated(err);

    }

    CX_DEBUG_EXIT_FUNCTION();

}

CCamera* CxeCameraDevice::camera()

{

    return mCamera;

}

CCamera::CCameraAdvancedSettings* CxeCameraDevice::advancedSettings()

{

    return mAdvancedSettings;

}

CCamera::CCameraImageProcessing* CxeCameraDevice::imageProcessor()

{

    return mImageProcessor;

}

CCamera::CCameraSnapshot* CxeCameraDevice::cameraSnapshot()

{

    return mCameraSnapshot;

}

MCameraOrientation* CxeCameraDevice::cameraOrientation()

{

    return mCameraOrientation;

}

MCameraFaceTracking* CxeCameraDevice::faceTracking()

{

    return mFaceTracking;

}

MCameraUseCaseHint *CxeCameraDevice::useCaseHintApi()

{

    return mUseCaseHintApi;

}

CxeError::Id CxeCameraDevice::initResources()

{

    CX_DEBUG_ENTER_FUNCTION();

    TInt status = KErrNone;

    if (mCamera) {

        OstTrace0(camerax_performance, CXECAMERADEVICE_EXTENSIONS_1, "msg: e_CX_GET_CCAMERA_EXTENSIONS 1");

        CX_DEBUG(("Get CCamera extensions.."));

        mCameraOrientation = static_cast<MCameraOrientation*>(

            mCamera->CustomInterface(KCameraOrientationUid));

        CX_DEBUG(("MCameraOrientation interface 0x%08x", mCameraOrientation));

        mFaceTracking = static_cast<MCameraFaceTracking*>(

            mCamera->CustomInterface(KCameraFaceTrackingUid));

        CX_DEBUG(("MCameraFaceTracking interface 0x%08x", mFaceTracking));

        mUseCaseHintApi = static_cast<MCameraUseCaseHint*>(

            mCamera->CustomInterface(KCameraUseCaseHintUid));

        CX_DEBUG(("MCameraUseCaseHint interface 0x%08x", mUseCaseHintApi));

        TRAPD(errorAdvSet, mAdvancedSettings =

              CCamera::CCameraAdvancedSettings::NewL(*mCamera));

        CX_DEBUG(("CCameraAdvancedSettings status: %d", errorAdvSet));

        TRAPD(errorImgPr, mImageProcessor =

              CCamera::CCameraImageProcessing::NewL(*mCamera));

        CX_DEBUG(("CCameraImageProcessing status: %d", errorImgPr));

        Q_UNUSED(errorImgPr); // Avoid release build unused variable warning.

        TRAPD(errorSnap, mCameraSnapshot =

              CCamera::CCameraSnapshot::NewL(*mCamera));

        CX_DEBUG(("CCameraSnapshot status: %d", errorSnap));

        // Check all statuses and set first error code encountered.

        // Imageprocessing is not supported by 2nd camera so we just ignore the error.

        status = errorAdvSet != KErrNone

                 ? errorAdvSet : errorSnap;

        CX_DEBUG(("Total status: %d", status));

        OstTrace0(camerax_performance, CXECAMERADEVICE_EXTENSIONS_2, "msg: e_CX_GET_CCAMERA_EXTENSIONS 0");

    }

    CX_DEBUG_EXIT_FUNCTION();

    return CxeErrorHandlingSymbian::map(status);

}

void CxeCameraDevice::releaseResources()

{

    CX_DEBUG_ENTER_FUNCTION();

    // not owned.

    mCameraOrientation = NULL;

    mFaceTracking = NULL;

    mUseCaseHintApi = NULL;

    delete mCameraSnapshot;

    mCameraSnapshot = NULL;

    delete mAdvancedSettings;

    mAdvancedSettings = NULL;

    delete mImageProcessor;

    mImageProcessor = NULL;

    delete mCamera;

    mCamera = NULL;

    CX_DEBUG_EXIT_FUNCTION();

}

CxeError::Id CxeCameraDevice::newCamera( Cxe::CameraIndex cameraIndex, MCameraObserver2 *observer )

{

    CX_DEBUG_ENTER_FUNCTION();

    OstTrace0(camerax_performance, CXECAMERADEVICE_NEWCAMERA_IN, "msg: e_CX_CREATE_CCAMERA 1");

    CX_DEBUG(("Cxe: using camera index %d", cameraIndex));

    CX_DEBUG_ASSERT(cameraIndex == Cxe::PrimaryCameraIndex || cameraIndex == Cxe::SecondaryCameraIndex);

    CCamera* camera = NULL;

#if defined(CXE_USE_DUMMY_CAMERA) || defined(__WINSCW__)

    TRAPD(err, camera = CxeDummyCamera::NewL(*observer, cameraIndex, 100, 2));

    CX_DEBUG(("CxeCameraDevice::newCamera <> new CxeDummyCamera"));

#else

    TRAPD(err, camera = CCamera::New2L(*observer, cameraIndex, 100 /*KCameraClientPriority*/));

    CX_DEBUG(("CxeCameraDevice::newCamera <> new CCamera"));

#endif

    OstTrace0(camerax_performance, CXECAMERADEVICE_NEWCAMERA_OUT, "msg: e_CX_CREATE_CCAMERA 0");

    if (!err) {

        setCamera(camera);

    }

    CX_DEBUG_EXIT_FUNCTION();

    return CxeErrorHandlingSymbian::map(err);

}

// end of file