1 /*

     2 * Copyright (c) 2009 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:

    15 *

    16 */

    17 

    18 #include "BMCONV.H"

    19 

    20 

    21 int BitmapUtils::ByteWidth(int aPixelWidth,int aBitsPerPixel)

    22 	{

    23 	int wordWidth = 0;

    24 

    25 	switch (aBitsPerPixel)

    26 		{

    27 	case 1:

    28 		wordWidth = (aPixelWidth + 31) / 32;

    29 		break;

    30 	case 2:

    31 		wordWidth = (aPixelWidth + 15) / 16;

    32 		break;

    33 	case 4:

    34 		wordWidth = (aPixelWidth + 7) / 8;

    35 		break;

    36 	case 8:

    37 		wordWidth = (aPixelWidth + 3) / 4;

    38 		break;

    39 	case 12:

    40 	case 16:

    41 		wordWidth = (aPixelWidth + 1) / 2;

    42 		break;

    43 	case 24:

    44 		wordWidth = (((aPixelWidth * 3) + 11) / 12) * 3;

    45 		break;

    46 	case 32:

    47 		wordWidth = aPixelWidth;

    48 		break;

    49 	default:

    50 		break;

    51 		};

    52 

    53 	return wordWidth * 4;

    54 	}

    55