1 /*

     2 * Copyright (c) 2006-2007 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  8 bits for red, green and blue component in a pixel.

    15 *

    16 */

    17 

    18 

    19 //  INCLUDE FILES

    20 #include "TMID888Format.h"

    21 

    22 

    23 inline TUint32 ConvertInternalInline888(const TMIDInternalARGB& aInternal)

    24 {

    25     // fully opaque always, alpha is 0

    26     return ((aInternal.iR << KMIDShift16Bits) & K888RMax) +

    27            ((aInternal.iG << KMIDShift8Bits) & K888GMax) +

    28            ((aInternal.iB) & K888BMax);

    29 }

    30 

    31 void ConvertInline888(TMIDInternalARGB& aResult, TUint32 aColor)

    32 {

    33     aResult.iA = KAlphaFullOpaque;

    34     aResult.iR = (TUint8)((aColor & K888RMax) >> KMIDShift16Bits);

    35     aResult.iG = (TUint8)((aColor & K888GMax) >> KMIDShift8Bits);

    36     aResult.iB = (TUint8)(aColor & K888BMax);

    37 }

    38 

    39 void TMID888Format::InitializeL(const TMIDBitmapParameters& aParameters)

    40 {

    41     TMIDFormatConverter::InitializeL(aParameters);

    42     iOffset += iTransformer.iPoint.iX + iTransformer.iPoint.iY * iScanlength;

    43     iBitmap = aParameters.iPixels;

    44     iAlphaBitmap = (TUint8*)aParameters.iAlpha;

    45 }

    46 

    47 TUint32 TMID888Format::ConvertInternal(const TMIDInternalARGB& aInternal)

    48 {

    49     return ConvertInternalInline888(aInternal);

    50 }

    51 

    52 void TMID888Format::Convert(TMIDInternalARGB& aResult, TUint32 aColor) const

    53 {

    54     ConvertInline888(aResult, aColor);

    55 }

    56 

    57 void TMID888Format::GetPixel(TMIDInternalARGB& aResult) const

    58 {

    59     ConvertInline888(aResult, iBitmap[ iOffset ]);    // CSI: 2 Wrong offset means implementation error #

    60 }

    61 

    62 void TMID888Format::PlotPixel(const TMIDInternalARGB& aInternal)

    63 {

    64     iBitmap[ iOffset ] = ConvertInternalInline888(aInternal);   // CSI: 2 Wrong offset means implementation error #

    65 }

    66 

    67 TUint8 TMID888Format::GetAlpha() const

    68 {

    69     // we need only last 8 bits since it is either white or black

    70     return (TUint8)(iAlphaBitmap[ iOffset ] & KMIDEightRightBits);  // CSI: 2 Wrong offset means implementation error #

    71 }

    72 

    73 TBool TMID888Format::CheckSize(TInt aPixelSize, TInt aLastDrawnPixelOffset)

    74 {

    75     return ((aLastDrawnPixelOffset * KBytesPerPixel888) <= aPixelSize);

    76 }