/*

 * Copyright (c)2008 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:  ?Description

 *

 */

#include <e32std.h>

#include <exception>

#include <e32base.h>

#include <badesca.h>

#include <fbs.h>

#include <bitdev.h>

#include <QPixmap>

#include <HbIcon>

#include <QBitmap>

#include <QDebug>

#include <XQConversions>

#include "cadef.h"

#include "cabitmapadapter.h"

static QImage::Format TDisplayMode2Format(TDisplayMode mode)

{

    QImage::Format format;

    switch (mode) {

    case EGray2:

        format = QImage::Format_MonoLSB;

        break;

    case EColor256:

    case EGray256:

        format = QImage::Format_Indexed8;

        break;

    case EColor4K:

        format = QImage::Format_RGB444;

        break;

    case EColor64K:

        format = QImage::Format_RGB16;

        break;

    case EColor16M:

        format = QImage::Format_RGB888;

        break;

    case EColor16MU:

        format = QImage::Format_RGB32;

        break;

    case EColor16MA:

        format = QImage::Format_ARGB32;

        break;

    case EColor16MAP:

        format = QImage::Format_ARGB32_Premultiplied;

        break;

    default:

        format = QImage::Format_Invalid;

        break;

    }

    return format;

}

QPixmap CaBitmapAdapter::fromSymbianCFbsBitmap(CFbsBitmap *aBitmap)

{

    aBitmap->BeginDataAccess();

    uchar *data = (uchar *)aBitmap->DataAddress();

    TSize size = aBitmap->SizeInPixels();

    TDisplayMode displayMode = aBitmap->DisplayMode();

    // QImage format must match to bitmap format

    QImage image(data, size.iWidth, size.iHeight, TDisplayMode2Format(

        displayMode));

    aBitmap->EndDataAccess();

    // No data copying happens because

    // image format matches native OpenVG format.

    // So QPixmap actually points to CFbsBitmap data.

    return QPixmap::fromImage(image);

}

// -----------------------------------------------------------------------------

// copying compressed bitmap

//----------------------------------------------------------------------------

CFbsBitmap *CaBitmapAdapter::copyBitmapLC(CFbsBitmap *input)

{

    CFbsBitmap *bmp = new(ELeave) CFbsBitmap();

    CleanupStack::PushL(bmp);

    bmp->Create(input->SizeInPixels(), input->DisplayMode());

    CFbsBitmapDevice *bitmapDevice = CFbsBitmapDevice::NewL(bmp);

    CleanupStack::PushL(bitmapDevice);

    CFbsBitGc *bmpGc;

    bitmapDevice->CreateContext(bmpGc);

    bmpGc->BitBlt(TPoint(0,0), input);

    delete bmpGc;

    CleanupStack::PopAndDestroy(bitmapDevice);

    return bmp;

}

void CaBitmapAdapter::fromBitmapAndMaskToPixmapL(CFbsBitmap* fbsBitmap,

        CFbsBitmap* fbsMask, QPixmap& pixmap)

{

    if (fbsBitmap->Header().iCompression == ENoBitmapCompression) {

        pixmap = CaBitmapAdapter::fromSymbianCFbsBitmap(fbsBitmap);

        QPixmap mask = CaBitmapAdapter::fromSymbianCFbsBitmap(fbsMask);

        pixmap.setAlphaChannel(mask);

    } else { // we need special handling for icons in 9.2 (NGA)

        // let's hope that in future it will be in QT code

        CFbsBitmap *temp(NULL);

        temp = CaBitmapAdapter::copyBitmapLC(fbsBitmap);

        pixmap = CaBitmapAdapter::fromSymbianCFbsBitmap(temp);

        CleanupStack::PopAndDestroy();

        temp = CaBitmapAdapter::copyBitmapLC(fbsMask);

        QPixmap mask = CaBitmapAdapter::fromSymbianCFbsBitmap(temp);

        CleanupStack::PopAndDestroy();

        pixmap.setAlphaChannel(mask);

    }

}