author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Mon, 21 Jun 2010 15:32:50 +0300 | |
branch | RCL_3 |
changeset 46 | 4376525cdefb |
parent 19 | 04becd199f91 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2006-2007 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: 4 bits for red, green and blue component in a pixel. |
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* |
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*/ |
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// INCLUDE FILES |
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#include "TMID444Format.h" |
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inline TUint16 ConvertInternalInline444(const TMIDInternalARGB& aInternal) |
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{ |
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// no transparency, so alpha is 0 |
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return (TUint16)(((aInternal.iR & KFourLeftBits) << KMIDShift4Bits) + |
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(aInternal.iG & KFourLeftBits) + |
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((aInternal.iB & KFourLeftBits) >> KMIDShift4Bits)); |
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} |
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inline void ConvertInline444(TMIDInternalARGB& aResult, TUint32 aColor) |
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{ |
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aResult.iA = KAlphaFullOpaque; |
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aResult.iR = KNativeColors[(aColor & K444RMax) >> KMIDShift8Bits ]; |
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aResult.iG = KNativeColors[(aColor & K444GMax) >> KMIDShift4Bits ]; |
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aResult.iB = KNativeColors[(aColor & K444BMax)]; |
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} |
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void TMID444Format::InitializeL(const TMIDBitmapParameters& aParameters) |
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{ |
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TMIDFormatConverter::InitializeL(aParameters); |
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iOffset += iTransformer.iPoint.iX + iTransformer.iPoint.iY * iScanlength; |
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iBitmap = (TUint16*)aParameters.iPixels; |
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} |
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TUint32 TMID444Format::ConvertInternal(const TMIDInternalARGB& aInternal) |
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{ |
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return ConvertInternalInline444(aInternal); |
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} |
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void TMID444Format::Convert(TMIDInternalARGB& aResult, TUint32 aColor) const |
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{ |
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ConvertInline444(aResult, aColor); |
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} |
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void TMID444Format::GetPixel(TMIDInternalARGB& aResult) const |
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{ |
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ConvertInline444(aResult, iBitmap[ iOffset ]); // CSI: 2 Wrong index means implementation error # |
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} |
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TUint8 TMID444Format::GetAlpha() const |
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{ |
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// we need only last 8 bits since it is either white or black |
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return (TUint8)(((TUint16*)iAlphaBitmap)[ iOffset ] & KMIDEightRightBits); // CSI: 2 Wrong index means implementation error # |
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} |
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void TMID444Format::PlotPixel(const TMIDInternalARGB& aInternal) |
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{ |
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iBitmap[ iOffset ] = ConvertInternalInline444(aInternal); // CSI: 2 Wrong index means implementation error # |
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} |
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TBool TMID444Format::CheckSize(TInt aPixelSize, TInt aLastDrawnPixelOffset) |
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{ |
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return((aLastDrawnPixelOffset * KBytesInPixel444) <= aPixelSize); |
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} |
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