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/*
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* Copyright (c) 2008-2009 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: Utility for creating bitmaps from video files
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*
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*/
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/**
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* @internal reviewed 31/07/2007 by Simon Brooks
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*/
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#include "glxtnimageutility.h"
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#include <MIHLScaler.h> // MIHLScaler
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#include <fbs.h>
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#include <glxtracer.h>
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#include <glxpanic.h>
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#include <glxthumbnail.h>
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#include <imageconversion.h>
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#include "glxtnimagedecoderfactory.h"
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#include <ExifRead.h>
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#include <IclExtJpegApi.h>
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// All EXIF data is within the first KGlxMaxExifSize bytes of the file
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const TInt KGlxMaxExifSize = 0x10000;
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// -----------------------------------------------------------------------------
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// Constructor
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// -----------------------------------------------------------------------------
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//
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CGlxtnImageUtility::CGlxtnImageUtility(RFs& aFs) : iFs(aFs)
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{
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TRACER("CGlxtnImageUtility::CGlxtnImageUtility()");
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}
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// -----------------------------------------------------------------------------
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// Destructor
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// -----------------------------------------------------------------------------
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//
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CGlxtnImageUtility::~CGlxtnImageUtility()
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{
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TRACER("CGlxtnImageUtility::~CGlxtnImageUtility()");
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delete iDecoder;
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delete iScaler;
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delete iBitGc;
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}
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// -----------------------------------------------------------------------------
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// Cancel
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// -----------------------------------------------------------------------------
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//
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void CGlxtnImageUtility::Cancel()
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{
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TRACER("void CGlxtnImageUtility::Cancel()");
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if ( iDecoder )
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{
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iDecoder->Cancel();
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}
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if ( iScaler && iScaler->IsBusy())
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{
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iScaler->CancelProcess();
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}
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}
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// -----------------------------------------------------------------------------
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// AdjustSize
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// -----------------------------------------------------------------------------
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//
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void CGlxtnImageUtility::AdjustSize(TSize& aTargetSize, const TSize& aSourceSize)
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{
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TRACER("void CGlxtnImageUtility::AdjustSize()");
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if( (aSourceSize.iWidth <= aTargetSize.iWidth ) && (aSourceSize.iHeight <= aTargetSize.iHeight ))
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{
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aTargetSize.iWidth = aSourceSize.iWidth;
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aTargetSize.iHeight = aSourceSize.iHeight;
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}
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else if ( aTargetSize.iHeight * aSourceSize.iWidth
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< aTargetSize.iWidth * aSourceSize.iHeight )
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{
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// Source has taller aspect than target so reduce target width
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aTargetSize.iWidth = ( ( aTargetSize.iHeight * aSourceSize.iWidth )
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/ ( aSourceSize.iHeight ) );
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}
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else
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{
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// Source has wider aspect than target so reduce target height
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aTargetSize.iHeight = (aTargetSize.iWidth * aSourceSize.iHeight)
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/ aSourceSize.iWidth;
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}
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}
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// -----------------------------------------------------------------------------
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// DecodeImageL
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// -----------------------------------------------------------------------------
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//
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CFbsBitmap* CGlxtnImageUtility::DecodeImageL(TRequestStatus& aStatus,
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const TDesC& aFileName, RArray<TSize>& aTargetSizes, TDisplayMode aMode)
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{
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TRACER("CFbsBitmap* CGlxtnImageUtility::DecodeImageL()");
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delete iDecoder;
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iDecoder = NULL;
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//Get Exif Metadata and the orientation tag from the file first
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TUint16 orientation = GetOrientationL(aFileName);
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TInt isExtDecoderUsed = 0;
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iDecoder = GlxtnImageDecoderFactory::NewL( iFs, aFileName, isExtDecoderUsed );
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iOriginalSize = iDecoder->FrameInfo().iOverallSizeInPixels;
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//Get the orientation and set rotation on the decoder
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//as well as update the original size
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if (isExtDecoderUsed)
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{
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TInt rotAngle = 0;
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TBool flip = EFalse;
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GetRotationParameters(orientation,rotAngle,flip);
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CExtJpegDecoder* extDecoder = (CExtJpegDecoder*)iDecoder;
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extDecoder->SetRotationL(rotAngle);
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if(flip)
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{
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extDecoder->SetMirroringL();
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}
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}
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if ( 0 == iOriginalSize.iWidth || 0 == iOriginalSize.iHeight )
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{
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User::Leave(KErrCorrupt);
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}
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TInt count = aTargetSizes.Count();
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TSize testSize;
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TSize targetSize;
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for ( TInt i = 0 ; i < count ; i++ )
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{
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testSize = aTargetSizes[i];
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AdjustSize(testSize, iOriginalSize);
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if( ( testSize.iWidth > targetSize.iWidth ) || ( testSize.iHeight > targetSize.iHeight ) )
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{
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targetSize = testSize;
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}
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}
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// Find max scaling factor which won't make image smaller than target size
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TInt shift = 3;
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while ( shift
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&& ((iOriginalSize.iWidth >> shift) < targetSize.iWidth
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|| (iOriginalSize.iHeight >> shift) < targetSize.iHeight ) )
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{
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shift--;
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}
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TInt roundUp = (1 << shift) - 1;
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TSize loadSize((iOriginalSize.iWidth + roundUp) >> shift,
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(iOriginalSize.iHeight + roundUp) >> shift);
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CFbsBitmap* image = new (ELeave) CFbsBitmap;
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CleanupStack::PushL(image);
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User::LeaveIfError(image->Create(loadSize, aMode));
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iDecoder->Convert(&aStatus, *image);
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CleanupStack::Pop(image);
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return image;
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}
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// -----------------------------------------------------------------------------
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// FreeDecoder
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// -----------------------------------------------------------------------------
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//
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void CGlxtnImageUtility::FreeDecoder()
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{
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TRACER("void CGlxtnImageUtility::FreeDecoder()");
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delete iDecoder;
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iDecoder = NULL;
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}
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// -----------------------------------------------------------------------------
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// OriginalSize
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// -----------------------------------------------------------------------------
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//
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const TSize& CGlxtnImageUtility::OriginalSize() const
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{
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TRACER("TSize& CGlxtnImageUtility::OriginalSize()");
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return iOriginalSize;
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}
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//---------------------------------------------------------------------------
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/**
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K-Nearest neighbour scaling for EColor64K.
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Code originally inherited from t_display.cpp by Toni Hemminki.
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Added windowing and further optimized by Jarmo Nikula 2006-2007.
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@param aSrc Source buffer pointer
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@param aSrcStride Source buffer stride in bytes
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@param aSrcCols Source columns
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@param aSrcRows Source rows
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@param aX Source window top-left X-coordinate
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@param aY Source window top-left Y-coordinate
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@param aW Source window width
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@param aH Source window height
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@param aDst Destination buffer pointer
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@param aDstStride Destination buffer stride in bytes
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@param aDstCols Destination columns, must be even
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@param aDstRows Destination rows
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*/
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// OPTION's for MMP file:
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// Interleave assembly code with C, output can be found on txt-files on some BUILD directory:
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// OPTION ARMCC --asm --interleave
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// Modify optimization for ARM insturcion set and for maximum speed
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// OPTION_REPLACE ARMCC --arm -Otime
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void CGlxtnImageUtility::FilterImageL(TRequestStatus* aStatus, CFbsBitmap* aSource, CFbsBitmap*& aFilteredSource, CFbsBitmap* aTarget)
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{
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TRACER("void CGlxtnImageUtility::FilterImageL()");
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TSize sourceSize(aSource->SizeInPixels());
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TSize targetSize(aTarget->SizeInPixels());
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//Fix for EKLG-7PTET2:mpxcollectionserver.exe crash in thumbnailcreator because of div by zero event
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if (targetSize.iWidth <= 0)
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{
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User::Leave(KErrDivideByZero);
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}
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TInt scalePercent = ((100*sourceSize.iWidth)/targetSize.iWidth) - 100;
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// no need to filter if close enough or smaller
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if ( scalePercent >= 2 && ( aTarget->DisplayMode() == EColor64K ) )
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{
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FilterL(aSource, aFilteredSource, scalePercent);
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}
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*aStatus = KRequestPending;
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User::RequestComplete(aStatus, KErrNone);
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}
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// -----------------------------------------------------------------------------
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// ScaleImageL
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// -----------------------------------------------------------------------------
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//
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void CGlxtnImageUtility::ScaleImageL(TRequestStatus& aStatus, CFbsBitmap& aSrcBitmap,
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const TRect& aSrcRect, CFbsBitmap& aDstBitmap,
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const TRect& aDstRect)
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{
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TRACER("void CGlxtnImageUtility::ScaleImageL(IHL)");
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if (!iScaler)
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{
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iScaler = IHLScaler::CreateL();
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}
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User::LeaveIfError(iScaler->Scale(aStatus, aSrcBitmap, aSrcRect, aDstBitmap, aDstRect));
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}
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void CGlxtnImageUtility::ScaleImage64kL(TRequestStatus* aStatus, CFbsBitmap* aSource, CFbsBitmap* aFilteredSource, CFbsBitmap* aTarget)
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{
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TRACER("void CGlxtnImageUtility::ScaleImage64kL()");
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TSize sourceSize(aSource->SizeInPixels());
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TSize targetSize(aTarget->SizeInPixels());
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TInt scalePercent = ((100*sourceSize.iWidth)/targetSize.iWidth) - 100;
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TRect targetRect(targetSize);
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TRect sourceRect(sourceSize);
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CFbsBitmap* sourceImage = aFilteredSource;
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if ( !aFilteredSource )
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{
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sourceImage = aSource;
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}
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if ( scalePercent < 2 )
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{
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if ( scalePercent > 0 )
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{
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sourceRect = targetRect;
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}
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sourceImage = aSource;
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}
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sourceImage->LockHeap();
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TUint16* sourceAddress = (TUint16*)sourceImage->DataAddress();
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sourceImage->UnlockHeap();
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aTarget->LockHeap();
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TUint16* targetAddress = (TUint16*)aTarget->DataAddress();
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aTarget->UnlockHeap();
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ScaleColor64K(sourceAddress, sourceImage->DataStride(),
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sourceImage->SizeInPixels().iWidth,
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sourceImage->SizeInPixels().iHeight, 0, 0,
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sourceImage->SizeInPixels().iWidth,
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sourceImage->SizeInPixels().iHeight, targetAddress,
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aTarget->DataStride(), targetSize.iWidth, targetSize.iHeight);
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*aStatus = KRequestPending;
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User::RequestComplete(aStatus, KErrNone);
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}
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void CGlxtnImageUtility::ScaleColor64K( TUint16* aSrc, TInt aSrcStride, TInt /*aSrcCols*/, TInt /*aSrcRows*/,
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TInt aX, TInt aY, TInt aW, TInt aH,
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TUint16* aDst, TInt aDstStride, TInt aDstCols, TInt aDstRows )
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{
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TRACER("void CGlxtnImageUtility::ScaleColor64K()");
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const TUint KPrecision = 16;
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TUint hInc = ( aW<< KPrecision ) / aDstCols;
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TUint vInc = ( aH << KPrecision ) / aDstRows;
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TUint v = 0;
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for ( TUint row = aDstRows; row > 0; --row )
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{
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TInt h = hInc * (aDstCols - 1);
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TUint linestart = aSrcStride * ( aY + ( v >> KPrecision ) ) / sizeof(TUint16) + aX;
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TUint16* src = &aSrc[ linestart ];
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TUint32* dst = (TUint32*)aDst + aDstCols / 2;
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TUint32 pxl2x;
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// This loop generates 11 assembly instructions per round
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// when using "--arm --Otime" options. Since two pixels are handled per round,
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// it means 5.5 instructions per pixel on average.
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do {
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pxl2x = src[ h >> KPrecision ]<<16;
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h -= hInc;
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pxl2x |= src[ h >> KPrecision ];
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*--dst = pxl2x;
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// Compiler eliminates CMP instruction when substraction
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// is done inside the while () statement.
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} while ( ( h -= hInc ) >= 0 );
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v += vInc;
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aDst += aDstStride / sizeof(TUint16);
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}
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}
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void CGlxtnImageUtility::FilterL( CFbsBitmap* aSource, CFbsBitmap*& aFilteredSource, TInt aFilterPercent )
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{
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TRACER("void CGlxtnImageUtility::FilterL()");
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if ( !aFilteredSource )
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{
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TSize imageSize = aSource->SizeInPixels();
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aFilteredSource = new (ELeave) CFbsBitmap;
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aFilteredSource->Create(imageSize, aSource->DisplayMode());
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CFbsBitmapDevice *bitmapDevice = CFbsBitmapDevice::NewL(aFilteredSource);
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if ( !iBitGc )
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{
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iBitGc = CFbsBitGc::NewL();
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}
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iBitGc->Activate(bitmapDevice);
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iBitGc->BitBlt(TPoint(), aSource, imageSize);
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delete bitmapDevice;
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}
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TSize imageSize = aFilteredSource->SizeInPixels();
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aFilteredSource->LockHeap();
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TUint16* sourceAddress = (TUint16*)aFilteredSource->DataAddress();
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aFilteredSource->UnlockHeap();
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const TInt KGlxScalingNeeds4Filtering = 80; // if scaling more than 1.8 need to filter by 4
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const TInt KGlxScalingNeeds8Filtering = 260; // if scaling more than 3.6 need to filter by 8
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if ( KGlxScalingNeeds8Filtering < aFilterPercent )
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{
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FIRFiltering8(
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sourceAddress, aFilteredSource->DataStride() / sizeof(TUint16),
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imageSize.iWidth, imageSize.iHeight );
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}
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else if ( KGlxScalingNeeds4Filtering < aFilterPercent )
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{
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FIRFiltering4(
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sourceAddress, aFilteredSource->DataStride() / sizeof(TUint16),
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imageSize.iWidth, imageSize.iHeight );
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}
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else
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{
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FIRFiltering(
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sourceAddress, aFilteredSource->DataStride() / sizeof(TUint16),
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imageSize.iWidth, imageSize.iHeight );
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}
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}
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#define rmask565 0xf800
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#define gmask565 0x07e0
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#define bmask565 0x001f
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#define rbmask565 (rmask565|bmask565)
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#define rm565( rgb ) ((rgb) & rmask565)
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#define gm565( rgb ) ((rgb) & gmask565)
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#define bm565( rgb ) ((rgb) & bmask565)
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#define rbm565( rgb ) ((rgb) & rbmask565)
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#define r565( rgb ) ((rgb)>>11)
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#define g565( rgb ) (gm565(rgb)>>5)
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#define b565( rgb ) (bm565(rgb))
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#define rgb565( r, g, b ) (((r)<<11)|((g)<<5)|(b))
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#define mask32gbr655 0x07e0f81f
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// Keep below three defs in sync with each other
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#define KFIRLen 2
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#define KFIRCen (KFIRLen / 2)
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#define incFIRIndex( i ) i = (i + 1) & (KFIRLen - 1)
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// Keep above three defs in sync with each other
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398 |
void CGlxtnImageUtility::FIRFiltering(
|
|
399 |
TUint16* aDst, TUint aDstStridep, TUint aDstCols, TUint aDstRows )
|
|
400 |
{
|
|
401 |
TRACER("void CGlxtnImageUtility::FIRFiltering( )");
|
|
402 |
TUint firFifo[ KFIRLen ];
|
|
403 |
TUint i; // index for fifo in&out
|
|
404 |
TUint16 *p;
|
|
405 |
TUint32 px;
|
|
406 |
TInt row, col;
|
|
407 |
TUint FIRsum;
|
|
408 |
// Horizontal scan.
|
|
409 |
p = aDst;
|
|
410 |
for ( row = aDstRows - 1; row >= 0; row-- )
|
|
411 |
{
|
|
412 |
// Fill in the FIR first.
|
|
413 |
// TODO: Fill in with extrapolated values at edges
|
|
414 |
FIRsum = ((KFIRLen / 2)<<21) | ((KFIRLen / 2)<<11) | (KFIRLen / 2); // for correct rounding
|
|
415 |
i = 0;
|
|
416 |
TUint32 mask1 = mask32gbr655;
|
|
417 |
for ( col = 0; col < KFIRLen; col++ )
|
|
418 |
{
|
|
419 |
px = p[ col ];
|
|
420 |
px = ((px<<16) | px) & mask1;
|
|
421 |
firFifo[ i ] = px;
|
|
422 |
FIRsum += px;
|
|
423 |
incFIRIndex( i );
|
|
424 |
}
|
|
425 |
TUint32 ave;
|
|
426 |
for ( ; col < aDstCols; col++ )
|
|
427 |
{
|
|
428 |
ave = ( FIRsum / KFIRLen ) & mask1;
|
|
429 |
p[ col - KFIRCen ] = TUint16( ave | (ave>>16) );
|
|
430 |
FIRsum -= firFifo[ i ];
|
|
431 |
px = p[ col ];
|
|
432 |
px = ((px<<16) | px) & mask1;
|
|
433 |
firFifo[ i ] = px;
|
|
434 |
FIRsum += px;
|
|
435 |
incFIRIndex( i );
|
|
436 |
}
|
|
437 |
p += aDstStridep;
|
|
438 |
}
|
|
439 |
// Vertical scan.
|
|
440 |
for ( col = aDstCols - 1; col >= 0; col-- )
|
|
441 |
{
|
|
442 |
// Fill in the FIR first.
|
|
443 |
FIRsum = ((KFIRLen / 2)<<21) | ((KFIRLen / 2)<<11) | (KFIRLen / 2); // for correct rounding
|
|
444 |
TUint32 mask1 = mask32gbr655;
|
|
445 |
i = 0;
|
|
446 |
p = aDst + col;
|
|
447 |
for ( row = 0; row < KFIRLen; row++ )
|
|
448 |
{
|
|
449 |
px = *p;
|
|
450 |
px = ((px<<16) | px) & mask1;
|
|
451 |
firFifo[ i ] = px;
|
|
452 |
FIRsum += px;
|
|
453 |
incFIRIndex( i );
|
|
454 |
p += aDstStridep;
|
|
455 |
}
|
|
456 |
TUint32 ave;
|
|
457 |
p -= aDstStridep * KFIRCen;
|
|
458 |
for ( ; row < aDstRows; row++ )
|
|
459 |
{
|
|
460 |
ave = ( FIRsum / KFIRLen ) & mask1;
|
|
461 |
p[0] = TUint16( ave | (ave>>16) );
|
|
462 |
FIRsum -= firFifo[ i ];
|
|
463 |
px = p[ aDstStridep * KFIRCen ];
|
|
464 |
px = ((px<<16) | px) & mask1;
|
|
465 |
firFifo[ i ] = px;
|
|
466 |
FIRsum += px;
|
|
467 |
incFIRIndex( i );
|
|
468 |
p += aDstStridep;
|
|
469 |
}
|
|
470 |
}
|
|
471 |
}
|
|
472 |
//
|
|
473 |
// NOTE: Keep below three defs in sync with each other
|
|
474 |
#define KFIRLen4 4
|
|
475 |
#define KFIRCen4 (KFIRLen4 / 2)
|
|
476 |
#define incFIRIndex4( i ) i = (i + 1) & (KFIRLen4 - 1)
|
|
477 |
// NOTE: Keep above three defs in sync with each other
|
|
478 |
|
|
479 |
void CGlxtnImageUtility::FIRFiltering4(
|
|
480 |
TUint16* aDst, TUint aDstStridep, TUint aDstCols, TUint aDstRows )
|
|
481 |
{
|
|
482 |
TRACER("void CGlxtnImageUtility::FIRFiltering4()");
|
|
483 |
TUint firFifo[ KFIRLen4 ];
|
|
484 |
TUint i; // index for fifo in&out
|
|
485 |
TUint16 *p;
|
|
486 |
TUint32 px;
|
|
487 |
TInt row, col;
|
|
488 |
TUint FIRsum;
|
|
489 |
// Horizontal scan.
|
|
490 |
p = aDst;
|
|
491 |
for ( row = aDstRows - 1; row >= 0; row-- )
|
|
492 |
{
|
|
493 |
// Fill in the FIR first.
|
|
494 |
// TODO: Fill in with extrapolated values at edges
|
|
495 |
FIRsum = ((KFIRLen4 / 2)<<21) | ((KFIRLen4 / 2)<<11) | (KFIRLen4 / 2); // for correct rounding
|
|
496 |
i = 0;
|
|
497 |
TUint32 mask1 = mask32gbr655;
|
|
498 |
for ( col = 0; col < KFIRLen4; col++ )
|
|
499 |
{
|
|
500 |
px = p[ col ];
|
|
501 |
px = ((px<<16) | px) & mask1;
|
|
502 |
firFifo[ i ] = px;
|
|
503 |
FIRsum += px;
|
|
504 |
incFIRIndex4( i );
|
|
505 |
}
|
|
506 |
TUint32 ave;
|
|
507 |
for ( ; col < aDstCols; col++ )
|
|
508 |
{
|
|
509 |
ave = ( FIRsum / KFIRLen4 ) & mask1;
|
|
510 |
p[ col - KFIRCen4 ] = TUint16( ave | (ave>>16) );
|
|
511 |
FIRsum -= firFifo[ i ];
|
|
512 |
px = p[ col ];
|
|
513 |
px = ((px<<16) | px) & mask1;
|
|
514 |
firFifo[ i ] = px;
|
|
515 |
FIRsum += px;
|
|
516 |
incFIRIndex4( i );
|
|
517 |
}
|
|
518 |
p += aDstStridep;
|
|
519 |
}
|
|
520 |
// Vertical scan.
|
|
521 |
for ( col = aDstCols - 1; col >= 0; col-- )
|
|
522 |
{
|
|
523 |
// Fill in the FIR first.
|
|
524 |
FIRsum = ((KFIRLen4 / 2)<<21) | ((KFIRLen4 / 2)<<11) | (KFIRLen4 / 2); // for correct rounding
|
|
525 |
TUint32 mask1 = mask32gbr655;
|
|
526 |
i = 0;
|
|
527 |
p = aDst + col;
|
|
528 |
for ( row = 0; row < KFIRLen4; row++ )
|
|
529 |
{
|
|
530 |
px = *p;
|
|
531 |
px = ((px<<16) | px) & mask1;
|
|
532 |
firFifo[ i ] = px;
|
|
533 |
FIRsum += px;
|
|
534 |
incFIRIndex4( i );
|
|
535 |
p += aDstStridep;
|
|
536 |
}
|
|
537 |
TUint32 ave;
|
|
538 |
p -= aDstStridep * KFIRCen4;
|
|
539 |
for ( ; row < aDstRows; row++ )
|
|
540 |
{
|
|
541 |
ave = ( FIRsum / KFIRLen4 ) & mask1;
|
|
542 |
p[0] = TUint16( ave | (ave>>16) );
|
|
543 |
FIRsum -= firFifo[ i ];
|
|
544 |
px = p[ aDstStridep * KFIRCen4 ];
|
|
545 |
px = ((px<<16) | px) & mask1;
|
|
546 |
firFifo[ i ] = px;
|
|
547 |
FIRsum += px;
|
|
548 |
incFIRIndex4( i );
|
|
549 |
p += aDstStridep;
|
|
550 |
}
|
|
551 |
}
|
|
552 |
}
|
|
553 |
|
|
554 |
// Keep below three defs in sync with each other
|
|
555 |
#define KFIRLen8 8
|
|
556 |
#define KFIRCen8 (KFIRLen8 / 2)
|
|
557 |
#define incFIRIndex8( i ) i = (i + 1) & (KFIRLen8 - 1)
|
|
558 |
// Keep above three defs in sync with each other
|
|
559 |
|
|
560 |
void CGlxtnImageUtility::FIRFiltering8(
|
|
561 |
TUint16* aDst, TUint aDstStridep, TUint aDstCols, TUint aDstRows )
|
|
562 |
{
|
|
563 |
TRACER("void CGlxtnImageUtility::FIRFiltering8()");
|
|
564 |
TUint firFifo[ KFIRLen8 ];
|
|
565 |
TUint i; // index for fifo in&out
|
|
566 |
TUint16 *p;
|
|
567 |
TUint32 px;
|
|
568 |
TInt row, col;
|
|
569 |
TUint FIRsum;
|
|
570 |
// Horizontal scan.
|
|
571 |
p = aDst;
|
|
572 |
for ( row = aDstRows - 1; row >= 0; row-- )
|
|
573 |
{
|
|
574 |
// Fill in the FIR first.
|
|
575 |
// TODO: Fill in with extrapolated values at edges
|
|
576 |
FIRsum = ((KFIRLen8 / 2)<<21) | ((KFIRLen8 / 2)<<11) | (KFIRLen8 / 2); // for correct rounding
|
|
577 |
i = 0;
|
|
578 |
TUint32 mask1 = mask32gbr655;
|
|
579 |
for ( col = 0; col < KFIRLen8; col++ )
|
|
580 |
{
|
|
581 |
px = p[ col ];
|
|
582 |
px = ((px<<16) | px) & mask1;
|
|
583 |
firFifo[ i ] = px;
|
|
584 |
FIRsum += px;
|
|
585 |
incFIRIndex8( i );
|
|
586 |
}
|
|
587 |
TUint32 ave;
|
|
588 |
for ( ; col < aDstCols; col++ )
|
|
589 |
{
|
|
590 |
ave = ( FIRsum / KFIRLen8 ) & mask1;
|
|
591 |
p[ col - KFIRCen8 ] = TUint16( ave | (ave>>16) );
|
|
592 |
FIRsum -= firFifo[ i ];
|
|
593 |
px = p[ col ];
|
|
594 |
px = ((px<<16) | px) & mask1;
|
|
595 |
firFifo[ i ] = px;
|
|
596 |
FIRsum += px;
|
|
597 |
incFIRIndex8( i );
|
|
598 |
}
|
|
599 |
p += aDstStridep;
|
|
600 |
}
|
|
601 |
// Vertical scan.
|
|
602 |
for ( col = aDstCols - 1; col >= 0; col-- )
|
|
603 |
{
|
|
604 |
// Fill in the FIR first.
|
|
605 |
FIRsum = ((KFIRLen8 / 2)<<21) | ((KFIRLen8 / 2)<<11) | (KFIRLen8 / 2); // for correct rounding
|
|
606 |
TUint32 mask1 = mask32gbr655;
|
|
607 |
i = 0;
|
|
608 |
p = aDst + col;
|
|
609 |
for ( row = 0; row < KFIRLen8; row++ )
|
|
610 |
{
|
|
611 |
px = *p;
|
|
612 |
px = ((px<<16) | px) & mask1;
|
|
613 |
firFifo[ i ] = px;
|
|
614 |
FIRsum += px;
|
|
615 |
incFIRIndex8( i );
|
|
616 |
p += aDstStridep;
|
|
617 |
}
|
|
618 |
TUint32 ave;
|
|
619 |
p -= aDstStridep * KFIRCen8;
|
|
620 |
for ( ; row < aDstRows; row++ )
|
|
621 |
{
|
|
622 |
ave = ( FIRsum / KFIRLen8 ) & mask1;
|
|
623 |
p[0] = TUint16( ave | (ave>>16) );
|
|
624 |
FIRsum -= firFifo[ i ];
|
|
625 |
px = p[ aDstStridep * KFIRCen8 ];
|
|
626 |
px = ((px<<16) | px) & mask1;
|
|
627 |
firFifo[ i ] = px;
|
|
628 |
FIRsum += px;
|
|
629 |
incFIRIndex8( i );
|
|
630 |
p += aDstStridep;
|
|
631 |
}
|
|
632 |
}
|
|
633 |
}
|
|
634 |
// -----------------------------------------------------------------------------
|
|
635 |
// GetOrientation
|
|
636 |
// -----------------------------------------------------------------------------
|
|
637 |
//
|
|
638 |
TUint16 CGlxtnImageUtility::GetOrientationL(const TDesC& aFileName)
|
|
639 |
{
|
|
640 |
//Get Exif Metadata and the orientation tag from the file first
|
|
641 |
RFile file;
|
|
642 |
CleanupClosePushL(file);
|
|
643 |
User::LeaveIfError(file.Open(iFs,
|
|
644 |
aFileName, EFileRead));
|
|
645 |
TInt size;
|
|
646 |
User::LeaveIfError(file.Size(size));
|
|
647 |
if ( KGlxMaxExifSize < size )
|
|
648 |
{
|
|
649 |
size = KGlxMaxExifSize;
|
|
650 |
}
|
|
651 |
TUint16 orientation = 9;
|
|
652 |
HBufC8* exifData = HBufC8::NewLC(size);
|
|
653 |
TPtr8 ptr(exifData->Des());
|
|
654 |
User::LeaveIfError(file.Read(ptr));
|
|
655 |
CExifRead* exifReader = NULL;
|
|
656 |
TRAPD(exifErr,exifReader = CExifRead::NewL(*exifData, CExifRead::ENoJpeg));
|
|
657 |
if(exifErr == KErrNone)
|
|
658 |
{
|
|
659 |
CleanupStack::PushL(exifReader);
|
|
660 |
|
|
661 |
TInt readErr = exifReader->GetOrientation(orientation);
|
|
662 |
if(readErr != KErrNone)
|
|
663 |
{
|
|
664 |
orientation = 9;
|
|
665 |
}
|
|
666 |
CleanupStack::PopAndDestroy(exifReader);
|
|
667 |
}
|
|
668 |
CleanupStack::PopAndDestroy(exifData);
|
|
669 |
//Close and pop file Session
|
|
670 |
CleanupStack::PopAndDestroy(&file);
|
|
671 |
return orientation;
|
|
672 |
}
|
|
673 |
|
|
674 |
// -----------------------------------------------------------------------------
|
|
675 |
// GetRotationParameters
|
|
676 |
// -----------------------------------------------------------------------------
|
|
677 |
//
|
|
678 |
void CGlxtnImageUtility::GetRotationParameters(TUint16 aOrientation,
|
|
679 |
TInt& aRotAngle, TBool& aFlipStatus)
|
|
680 |
{
|
|
681 |
//Get the orientation and set rotation on the decoder
|
|
682 |
//as well as update the original size
|
|
683 |
aRotAngle = 0;
|
|
684 |
aFlipStatus = EFalse;
|
|
685 |
TInt isOrientationOdd = aOrientation%2;
|
|
686 |
if(aOrientation>8)
|
|
687 |
{
|
|
688 |
return;
|
|
689 |
}
|
|
690 |
if(aOrientation >= 3 && aOrientation < 5)
|
|
691 |
{
|
|
692 |
aRotAngle = 180;
|
|
693 |
}
|
|
694 |
else if(aOrientation >= 5 && aOrientation < 7)
|
|
695 |
{
|
|
696 |
aRotAngle = 90;
|
|
697 |
|
|
698 |
}
|
|
699 |
else if(aOrientation >= 7 && aOrientation <= 8)
|
|
700 |
{
|
|
701 |
aRotAngle = 270;
|
|
702 |
}
|
|
703 |
if(aOrientation>4 )
|
|
704 |
{
|
|
705 |
iOriginalSize.SetSize(iOriginalSize.iHeight,iOriginalSize.iWidth); //Switch Height and width
|
|
706 |
if(isOrientationOdd )
|
|
707 |
{
|
|
708 |
aFlipStatus = ETrue;
|
|
709 |
}
|
|
710 |
}
|
|
711 |
}
|