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// Copyright (c) 1995-2009 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:
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//
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#include <f32file.h>
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#include <fbs.h>
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#include <bitmap.h>
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#include <graphicsaccelerator.h>
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#include <graphics/lookuptable.h>
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#include <graphics/blendingalgorithms.h>
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#include <graphics/bitmapuid.h>
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#include "UTILS.H"
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#include <s32mem.h>
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#include "ShiftedFileStore.h"
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#include "CompileAssert.h"
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#include "CompressionBookmark.h"
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#include "BitmapCompr.h"
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#include "palette.h"
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#include "fbsrasterizer.h"
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#include "bitmap.inl"
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#include "BitwiseBitmap.inl"
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#include "bitmapconst.h"
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#ifdef __ARMCC__
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#pragma arm
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#pragma O3
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#pragma Otime
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#endif
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const TInt KMaxPixelSize = KMaxTInt / 4; // Maximum pixel size to avoid some overflow problems
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const TUint KMaxByteSize = TUint(KMaxTInt / 2); // Maximum byte size to avoid other overflow problems
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enum
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{
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EFirstTime = 65536
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};
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GLREF_C void Panic(TFbsPanic aPanic);
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#define COLOR_VALUE(ScanLinePtr, XPos) (*((ScanLinePtr) + ((XPos) >> 5)) & ( 1 << ((XPos) & 0x1F)))
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EXPORT_C void CBitwiseBitmap::operator delete(TAny *aThis)
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{
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if (((CBitwiseBitmap*)aThis)->iHeap)
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((CBitwiseBitmap*)aThis)->iHeap->Free(aThis);
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}
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EXPORT_C CBitwiseBitmap::CBitwiseBitmap(RHeap* aHeap,CChunkPile* aPile):
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iUid(KCBitwiseBitmapUid),
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iSettings(ENone),
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iHeap(aHeap),
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iPile(aPile),
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iByteWidth(0),
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iDataOffset(0),
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iIsCompressedInRAM(EFalse)
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{
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//CBitwiseBitmap size can't be changed! If the bitmap is ROM based,
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//then CBitwiseBitmap object is not created, but CBitwiseBitmap pointer is
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//used to access ROM based bitmap data.
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//The following line is a part of CFbsBitmap::DoLoad(...) source code:
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//iRomPointer=(CBitwiseBitmap*)(((TUint8*)rompointer)+offset);
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//We have to preserve data compatibility with already existing ROM bitmaps.
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enum
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{
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KCBitwiseBitmapSize = 72
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};
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COMPILE_TIME_ASSERT(sizeof(CBitwiseBitmap) == KCBitwiseBitmapSize);
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#ifdef SYMBIAN_DEBUG_FBS_LOCKHEAP
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Extra()->iLockCount = 0;
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Extra()->iThreadId = TThreadId(KNullThreadId);
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#endif
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Extra()->iTouchCount = 0;
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Extra()->iSerialNumber = 0;
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}
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EXPORT_C CBitwiseBitmap::~CBitwiseBitmap()
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{
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Reset();
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}
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EXPORT_C void CBitwiseBitmap::Reset()
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{
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if (iDataOffset)
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{
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if(iUid.iUid==KCBitwiseBitmapHardwareUid.iUid)
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{
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RHardwareBitmap hwb(iDataOffset); // iDataOffset = handle for hardware bitmap
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hwb.Destroy();
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}
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else
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if (iPile) iPile->Free(DataAddress());
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}
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iUid.iUid = KCBitwiseBitmapUid.iUid;
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iDataOffset=0;
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iSettings.SetDisplayModes(ENone);
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iByteWidth=0;
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iHeader=SEpocBitmapHeader();
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iIsCompressedInRAM=EFalse;
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}
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EXPORT_C TUid CBitwiseBitmap::Uid() const
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{
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return(iUid);
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}
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EXPORT_C TInt CBitwiseBitmap::Construct(const TSize& aSize,TDisplayMode aDispMode,TUid aCreatorUid)
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{
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if (iHeap == NULL || iPile == NULL)
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return KErrNoMemory;
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if (aSize.iWidth > KMaxPixelSize || aSize.iHeight > KMaxPixelSize)
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return KErrTooBig;
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TUint8* data = NULL;
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Reset();
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iSettings.SetDisplayModes(aDispMode);
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iByteWidth = ByteWidth(aSize.iWidth,aDispMode);
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TInt64 hugeDataSize = TInt64(aSize.iHeight) * TInt64(iByteWidth);
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if (I64HIGH(hugeDataSize) != 0 || I64LOW(hugeDataSize) > KMaxByteSize)
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return KErrTooBig;
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TInt dataSize = I64LOW(hugeDataSize);
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iHeader.iBitmapSize = sizeof(SEpocBitmapHeader) + dataSize;
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iHeader.iStructSize = sizeof(SEpocBitmapHeader);
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iHeader.iSizeInPixels = aSize;
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iHeader.iSizeInTwips = TSize(0,0);
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iHeader.iBitsPerPixel = Bpp(aDispMode);
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iHeader.iColor = IsColor(aDispMode);
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iHeader.iPaletteEntries = 0;
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iHeader.iCompression = ENoBitmapCompression;
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if (aSize.iHeight && aSize.iWidth)
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{
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if(aCreatorUid!=KUidCFbsBitmapCreation)
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{
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RHardwareBitmap hwb;
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TAcceleratedBitmapInfo info;
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TInt ret = hwb.Create(aDispMode,aSize,aCreatorUid);
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if(ret==KErrNone)
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ret = hwb.GetInfo(info);
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if(ret!=KErrNone)
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{
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Reset();
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return ret;
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}
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iSettings.SetVolatileBitmap();
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data = info.iAddress;
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dataSize = info.iLinePitch*info.iSize.iHeight;
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__ASSERT_DEBUG(info.iLinePitch >= iByteWidth, ::Panic(EFbsHardwareBitmapError));
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iByteWidth = info.iLinePitch;
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iDataOffset = hwb.iHandle; // iDataOffset = handle for hardware bitmap
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iUid.iUid = KCBitwiseBitmapHardwareUid.iUid;
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#ifdef SYMBIAN_DISABLE_HARDWARE_BITMAP_WHITEFILL
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return KErrNone;
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#endif
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}
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else
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{
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data = iPile->Alloc(dataSize);
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iDataOffset = data - iPile->ChunkBase();
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}
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if (!data)
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{
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iDataOffset=0;
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Reset();
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return(KErrNoMemory); // no memory exit point
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}
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}
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if (dataSize < KMaxLargeBitmapAlloc || aDispMode == EColor4K || iUid.iUid == KCBitwiseBitmapHardwareUid.iUid)
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{
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WhiteFill(data,dataSize,aDispMode);
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}
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return KErrNone; // success exit point
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}
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EXPORT_C TInt CBitwiseBitmap::ConstructExtended(const TSize& aSize, TDisplayMode aDispMode, TUid aType, TInt aDataSize)
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{
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if (iHeap == NULL || iPile == NULL)
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return KErrNoMemory;
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if (aSize.iWidth > KMaxPixelSize || aSize.iHeight > KMaxPixelSize)
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return KErrTooBig;
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if (aType.iUid == KCBitwiseBitmapUid.iUid || aType.iUid == KCBitwiseBitmapHardwareUid.iUid)
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return KErrArgument; // make sure the extended bitmap type is not one of the standard types
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if (aDataSize > KMaxByteSize)
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return KErrTooBig;
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Reset();
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iUid = aType;
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iSettings.SetDisplayModes(aDispMode);
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iByteWidth = ByteWidth(aSize.iWidth, aDispMode);
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iHeader.iBitmapSize = sizeof(SEpocBitmapHeader) + aDataSize;
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iHeader.iStructSize = sizeof(SEpocBitmapHeader);
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iHeader.iSizeInPixels = aSize;
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iHeader.iSizeInTwips = TSize(0,0);
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iHeader.iBitsPerPixel = Bpp(aDispMode);
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iHeader.iColor = IsColor(aDispMode);
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iHeader.iPaletteEntries = 0;
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iHeader.iCompression = EProprietaryCompression;
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TUint8* data = iPile->Alloc(aDataSize);
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if (!data)
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{
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Reset();
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return KErrNoMemory;
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}
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iDataOffset = data - iPile->ChunkBase();
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return KErrNone;
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}
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EXPORT_C void CBitwiseBitmap::ConstructL(RFs& aFs,const TDesC& aFilename,TInt32 aId,TUint aFileOffset)
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{
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//If aFileOffset != 0 then aFilename is a file with an embedded MBM file section at the end.
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//The implementation uses the fact that mbm files are implemented as
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//filestores and stream ID is actually the offset from the beginning of the filestore.
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//If stream ID changes its meaning in the future -
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//the method implementation has to be reviewed and changed too.
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User::LeaveIfNull(iHeap);
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User::LeaveIfNull(iPile);
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TUint fileMode = EFileRead;
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if(aFileOffset != 0) //This is a file with an embedded MBM file section at the end.
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fileMode |= EFileShareReadersOnly;
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CShiftedFileStore* filestore = CShiftedFileStore::OpenLC(aFs,aFilename,fileMode,aFileOffset);
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TStreamId streamid = filestore->Root();
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//TStreamId is the offset from the beggining of the file.
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//Obviously, if the bitmap file section is at the middle of the physical file,
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//we should add aFileOffset value to TStreamId value and use it.
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TStreamId streamid2(streamid.Value() + aFileOffset);
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RStoreReadStream readstream;
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readstream.OpenLC(*filestore,streamid2);
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TInt numbitmaps = readstream.ReadInt32L();
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if (aId < 0 || aId >= numbitmaps)
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User::Leave(KErrEof);
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TStreamId bmpstreamid;
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bmpstreamid.InternalizeL(readstream);
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TStreamId bmpstreamid2(bmpstreamid.Value() + aFileOffset);
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for (TInt count = 0; count < aId; count++)
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{
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bmpstreamid2.InternalizeL(readstream);
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bmpstreamid2 = TStreamId(bmpstreamid2.Value() + aFileOffset);
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}
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CleanupStack::PopAndDestroy();
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RStoreReadStream bmpstream;
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bmpstream.OpenLC(*filestore,bmpstreamid2);
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InternalizeL(bmpstream);
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CleanupStack::PopAndDestroy(2);
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}
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EXPORT_C void CBitwiseBitmap::ConstructL(RFile& aFile,TInt32 aId,TUint aFileOffset)
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{
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//If aFileOffset != 0 then aFilename is a file with an embedded MBM file section at the end.
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//The implementation uses the fact that mbm files are implemented as
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//filestores and stream ID is actually the offset from the beginning of the filestore.
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//If stream ID changes its meaning in the future -
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//the method implementation has to be reviewed and changed too.
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User::LeaveIfNull(iHeap);
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User::LeaveIfNull(iPile);
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CShiftedFileStore* filestore = CShiftedFileStore::FromL(aFile,aFileOffset);
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CleanupStack::PushL(filestore);
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TStreamId streamid = filestore->Root();
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//TStreamId is the offset from the beggining of the file.
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//Obviously, if the bitmap file section is at the middle of the physical file,
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//we should add aFileOffset value to TStreamId value and use it.
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TStreamId streamid2(streamid.Value() + aFileOffset);
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RStoreReadStream readstream;
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readstream.OpenLC(*filestore,streamid2);
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TInt numbitmaps = readstream.ReadInt32L();
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if (aId < 0 || aId >= numbitmaps)
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User::Leave(KErrEof);
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//Retrieving the streamid of the bitmap of that id from the file
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TStreamId bmpstreamid;
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bmpstreamid.InternalizeL(readstream);
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TStreamId bmpstreamid2(bmpstreamid.Value() + aFileOffset);
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for (TInt count = 0; count < aId; count++)
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{
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bmpstreamid2.InternalizeL(readstream);
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bmpstreamid2 = TStreamId(bmpstreamid2.Value() + aFileOffset);
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}
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//Use the streamid found to initialize the bitmap raw data in the memory
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CleanupStack::PopAndDestroy(&readstream);
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RStoreReadStream bmpstream;
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bmpstream.OpenLC(*filestore,bmpstreamid2);
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InternalizeL(bmpstream);
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CleanupStack::PopAndDestroy(2,filestore);
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}
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EXPORT_C void CBitwiseBitmap::ConstructL(CShiftedFileStore* aFileStore,TStreamId aStreamId)
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{
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User::LeaveIfNull(iHeap);
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User::LeaveIfNull(iPile);
|
sl@0
|
309 |
|
sl@0
|
310 |
RStoreReadStream bmpstream;
|
sl@0
|
311 |
bmpstream.OpenLC(*aFileStore,aStreamId);
|
sl@0
|
312 |
InternalizeL(bmpstream);
|
sl@0
|
313 |
CleanupStack::PopAndDestroy();
|
sl@0
|
314 |
}
|
sl@0
|
315 |
|
sl@0
|
316 |
EXPORT_C TInt CBitwiseBitmap::CopyData(const CBitwiseBitmap& aSourceBitmap)
|
sl@0
|
317 |
{
|
sl@0
|
318 |
__ASSERT_DEBUG(iHeap && iPile, ::Panic(EFbsPanicBitmapDataCopy));
|
sl@0
|
319 |
__ASSERT_DEBUG(!iIsCompressedInRAM, ::Panic(EFbsPanicBitmapDataCopy));
|
sl@0
|
320 |
__ASSERT_DEBUG(iUid.iUid == KCBitwiseBitmapUid.iUid, ::Panic(EFbsPanicBitmapDataCopy));
|
sl@0
|
321 |
if (aSourceBitmap.iUid.iUid != KCBitwiseBitmapUid.iUid)
|
sl@0
|
322 |
return KErrNotSupported;
|
sl@0
|
323 |
const TDisplayMode displayMode = aSourceBitmap.iSettings.CurrentDisplayMode();
|
sl@0
|
324 |
__ASSERT_DEBUG(iSettings.CurrentDisplayMode() == displayMode, ::Panic(EFbsPanicBitmapDataCopy));
|
sl@0
|
325 |
if (aSourceBitmap.iHeader.iSizeInPixels.iWidth > 0)
|
sl@0
|
326 |
iHeader.iSizeInTwips.iWidth = (aSourceBitmap.iHeader.iSizeInTwips.iWidth * iHeader.iSizeInPixels.iWidth)
|
sl@0
|
327 |
/ aSourceBitmap.iHeader.iSizeInPixels.iWidth;
|
sl@0
|
328 |
if (aSourceBitmap.iHeader.iSizeInPixels.iHeight > 0)
|
sl@0
|
329 |
iHeader.iSizeInTwips.iHeight = (aSourceBitmap.iHeader.iSizeInTwips.iHeight * iHeader.iSizeInPixels.iHeight)
|
sl@0
|
330 |
/ aSourceBitmap.iHeader.iSizeInPixels.iHeight;
|
sl@0
|
331 |
TUint32* destBase = DataAddress();
|
sl@0
|
332 |
TUint32* srcBase = aSourceBitmap.DataAddress();
|
sl@0
|
333 |
if (!destBase || !srcBase)
|
sl@0
|
334 |
return KErrNone;
|
sl@0
|
335 |
TInt minPixelHeight = Min(iHeader.iSizeInPixels.iHeight, aSourceBitmap.iHeader.iSizeInPixels.iHeight);
|
sl@0
|
336 |
if (aSourceBitmap.iIsCompressedInRAM)
|
sl@0
|
337 |
{
|
sl@0
|
338 |
TUint8* dest = (TUint8*)destBase;
|
sl@0
|
339 |
TInt minPixelWidth = Min(iHeader.iSizeInPixels.iWidth, aSourceBitmap.iHeader.iSizeInPixels.iWidth);
|
sl@0
|
340 |
TPtr8 pDest(dest, iByteWidth, iByteWidth);
|
sl@0
|
341 |
TPoint pt(0, 0);
|
sl@0
|
342 |
TPoint ditherOffset(0, 0);
|
sl@0
|
343 |
TLineScanningPosition scanPos(srcBase);
|
sl@0
|
344 |
scanPos.iScanLineBuffer = HBufC8::New(aSourceBitmap.iByteWidth + 4);
|
sl@0
|
345 |
if (!scanPos.iScanLineBuffer)
|
sl@0
|
346 |
return KErrNoMemory;
|
sl@0
|
347 |
for (TInt row = 0; row < minPixelHeight; ++row)
|
sl@0
|
348 |
{
|
sl@0
|
349 |
pDest.Set(dest, iByteWidth, iByteWidth);
|
sl@0
|
350 |
pt.iY = row;
|
sl@0
|
351 |
aSourceBitmap.GetScanLine(pDest, pt, minPixelWidth, EFalse, ditherOffset, displayMode, srcBase, scanPos);
|
sl@0
|
352 |
dest += iByteWidth;
|
sl@0
|
353 |
}
|
sl@0
|
354 |
delete scanPos.iScanLineBuffer;
|
sl@0
|
355 |
}
|
sl@0
|
356 |
else
|
sl@0
|
357 |
{
|
sl@0
|
358 |
TUint8* dest = (TUint8*)destBase;
|
sl@0
|
359 |
TUint8* src = (TUint8*)srcBase;
|
sl@0
|
360 |
TInt minByteWidth = Min(iByteWidth, aSourceBitmap.iByteWidth);
|
sl@0
|
361 |
for(TInt row = 0; row < minPixelHeight; ++row)
|
sl@0
|
362 |
{
|
sl@0
|
363 |
Mem::Copy(dest, src, minByteWidth);
|
sl@0
|
364 |
dest += iByteWidth;
|
sl@0
|
365 |
src += aSourceBitmap.iByteWidth;
|
sl@0
|
366 |
}
|
sl@0
|
367 |
}
|
sl@0
|
368 |
if (iHeader.iSizeInPixels.iWidth > aSourceBitmap.iHeader.iSizeInPixels.iWidth)
|
sl@0
|
369 |
{
|
sl@0
|
370 |
TInt extraBits = (aSourceBitmap.iHeader.iSizeInPixels.iWidth * aSourceBitmap.iHeader.iBitsPerPixel) & 31;
|
sl@0
|
371 |
if (extraBits > 0)
|
sl@0
|
372 |
{
|
sl@0
|
373 |
TUint32 mask = KMaxTUint32;
|
sl@0
|
374 |
mask <<= extraBits;
|
sl@0
|
375 |
TInt destWordWidth = iByteWidth >> 2;
|
sl@0
|
376 |
TInt srcWordWidth = aSourceBitmap.iByteWidth >> 2;
|
sl@0
|
377 |
TUint32* maskAddress = destBase + srcWordWidth - 1;
|
sl@0
|
378 |
for (TInt row = 0; row < minPixelHeight; ++row)
|
sl@0
|
379 |
{
|
sl@0
|
380 |
*maskAddress |= mask;
|
sl@0
|
381 |
maskAddress += destWordWidth;
|
sl@0
|
382 |
}
|
sl@0
|
383 |
}
|
sl@0
|
384 |
}
|
sl@0
|
385 |
return KErrNone;
|
sl@0
|
386 |
}
|
sl@0
|
387 |
|
sl@0
|
388 |
EXPORT_C void CBitwiseBitmap::ExternalizeL(RWriteStream& aStream,const CFbsBitmap& aHandleBitmap) const
|
sl@0
|
389 |
{
|
sl@0
|
390 |
ExternalizeRectangleL(aStream,iHeader.iSizeInPixels,aHandleBitmap);
|
sl@0
|
391 |
}
|
sl@0
|
392 |
|
sl@0
|
393 |
EXPORT_C void CBitwiseBitmap::ExternalizeRectangleL(RWriteStream& aStream,const TRect& aRect,const CFbsBitmap& aHandleBitmap) const
|
sl@0
|
394 |
{
|
sl@0
|
395 |
if (aRect.IsEmpty())
|
sl@0
|
396 |
User::Leave(KErrArgument);
|
sl@0
|
397 |
// the bitmap must have been already prepared for data access
|
sl@0
|
398 |
if (aHandleBitmap.iUseCount == 0)
|
sl@0
|
399 |
User::Leave(KErrArgument);
|
sl@0
|
400 |
|
sl@0
|
401 |
// If the bitmap is palette-compressed in RAM externalisation is currently not supported
|
sl@0
|
402 |
// Externalisation of extended bitmaps is currently not supported either
|
sl@0
|
403 |
if (iHeader.iCompression == EGenericPaletteCompression || iHeader.iCompression == EProprietaryCompression)
|
sl@0
|
404 |
User::Leave(KErrNotSupported);
|
sl@0
|
405 |
const TRect bitmapRect(iHeader.iSizeInPixels);
|
sl@0
|
406 |
TRect sourceRect(aRect);
|
sl@0
|
407 |
if (!sourceRect.Intersects(bitmapRect))
|
sl@0
|
408 |
User::Leave(KErrTooBig);
|
sl@0
|
409 |
sourceRect.Intersection(bitmapRect);
|
sl@0
|
410 |
|
sl@0
|
411 |
TDisplayMode displayMode = iSettings.CurrentDisplayMode();
|
sl@0
|
412 |
const TInt scanLineByteLength = CBitwiseBitmap::ByteWidth(sourceRect.Width(),displayMode);
|
sl@0
|
413 |
const TInt rectByteSize = sourceRect.Height() * scanLineByteLength;
|
sl@0
|
414 |
TUint8* buffer = (TUint8*)User::AllocLC(scanLineByteLength);
|
sl@0
|
415 |
|
sl@0
|
416 |
TPtr8 scanline(buffer,scanLineByteLength,scanLineByteLength);
|
sl@0
|
417 |
scanline.Fill(0xff);
|
sl@0
|
418 |
const TPoint zeroPoint;
|
sl@0
|
419 |
TInt compressedSize = 0;
|
sl@0
|
420 |
TInt row;
|
sl@0
|
421 |
|
sl@0
|
422 |
for (row = sourceRect.iTl.iY; row < sourceRect.iBr.iY; row++)
|
sl@0
|
423 |
{
|
sl@0
|
424 |
GetScanLine(scanline,TPoint(sourceRect.iTl.iX,row),sourceRect.Width(),EFalse,zeroPoint,displayMode,aHandleBitmap.DataAddress());
|
sl@0
|
425 |
compressedSize += SizeOfDataCompressed(buffer,scanLineByteLength);
|
sl@0
|
426 |
}
|
sl@0
|
427 |
|
sl@0
|
428 |
TBool compress = EFalse;
|
sl@0
|
429 |
if(compressedSize > 0)
|
sl@0
|
430 |
{
|
sl@0
|
431 |
compress = (displayMode == EColor4K) || (compressedSize < (rectByteSize >> 1) + (rectByteSize >> 2));
|
sl@0
|
432 |
}
|
sl@0
|
433 |
|
sl@0
|
434 |
aStream.WriteInt32L(sizeof(SEpocBitmapHeader) + ((compress) ? compressedSize : rectByteSize));
|
sl@0
|
435 |
aStream.WriteInt32L(iHeader.iStructSize);
|
sl@0
|
436 |
aStream.WriteInt32L(sourceRect.Width());
|
sl@0
|
437 |
aStream.WriteInt32L(sourceRect.Height());
|
sl@0
|
438 |
aStream.WriteInt32L(HorizontalPixelsToTwips(sourceRect.Width()));
|
sl@0
|
439 |
aStream.WriteInt32L(VerticalPixelsToTwips(sourceRect.Height()));
|
sl@0
|
440 |
aStream.WriteInt32L(iHeader.iBitsPerPixel);
|
sl@0
|
441 |
aStream.WriteUint32L(iHeader.iColor);
|
sl@0
|
442 |
aStream.WriteInt32L(0);
|
sl@0
|
443 |
aStream.WriteUint32L(compress ? CompressionType(iHeader.iBitsPerPixel, iHeader.iColor) : ENoBitmapCompression);
|
sl@0
|
444 |
|
sl@0
|
445 |
for (row = sourceRect.iTl.iY; row < sourceRect.iBr.iY; row++)
|
sl@0
|
446 |
{
|
sl@0
|
447 |
GetScanLine(scanline,TPoint(sourceRect.iTl.iX,row),sourceRect.Width(),EFalse,zeroPoint,displayMode,aHandleBitmap.DataAddress());
|
sl@0
|
448 |
|
sl@0
|
449 |
if (!compress)
|
sl@0
|
450 |
aStream.WriteL(buffer,scanLineByteLength);
|
sl@0
|
451 |
else
|
sl@0
|
452 |
DoExternalizeDataCompressedL(aStream,buffer,scanLineByteLength);
|
sl@0
|
453 |
}
|
sl@0
|
454 |
|
sl@0
|
455 |
CleanupStack::PopAndDestroy(); // buffer
|
sl@0
|
456 |
}
|
sl@0
|
457 |
|
sl@0
|
458 |
EXPORT_C void CBitwiseBitmap::InternalizeHeaderL(RReadStream& aStream,SEpocBitmapHeader& aHeader)
|
sl@0
|
459 |
{
|
sl@0
|
460 |
aHeader.iBitmapSize=aStream.ReadInt32L();
|
sl@0
|
461 |
aHeader.iStructSize=aStream.ReadInt32L();
|
sl@0
|
462 |
if (aHeader.iStructSize!=sizeof(SEpocBitmapHeader)) User::Leave(KErrCorrupt);
|
sl@0
|
463 |
aHeader.iSizeInPixels.iWidth=aStream.ReadInt32L();
|
sl@0
|
464 |
aHeader.iSizeInPixels.iHeight=aStream.ReadInt32L();
|
sl@0
|
465 |
aHeader.iSizeInTwips.iWidth=aStream.ReadInt32L();
|
sl@0
|
466 |
aHeader.iSizeInTwips.iHeight=aStream.ReadInt32L();
|
sl@0
|
467 |
aHeader.iBitsPerPixel=aStream.ReadInt32L();
|
sl@0
|
468 |
aHeader.iColor=(TInt)aStream.ReadUint32L();
|
sl@0
|
469 |
aHeader.iPaletteEntries=aStream.ReadInt32L();
|
sl@0
|
470 |
if (aHeader.iPaletteEntries != 0)
|
sl@0
|
471 |
{
|
sl@0
|
472 |
//Palettes are not supported.
|
sl@0
|
473 |
User::Leave(KErrNotSupported);
|
sl@0
|
474 |
}
|
sl@0
|
475 |
aHeader.iCompression=(TBitmapfileCompression)aStream.ReadUint32L();
|
sl@0
|
476 |
CheckHeaderIsValidL(aHeader);
|
sl@0
|
477 |
}
|
sl@0
|
478 |
|
sl@0
|
479 |
void CBitwiseBitmap::CheckHeaderIsValidL(const SEpocBitmapHeader& aHeader)
|
sl@0
|
480 |
{
|
sl@0
|
481 |
//These fields are signed in the structure?
|
sl@0
|
482 |
TInt bitmapSize = aHeader.iBitmapSize;
|
sl@0
|
483 |
TInt imageHeightPix = aHeader.iSizeInPixels.iHeight;
|
sl@0
|
484 |
TInt imageWidthPix = aHeader.iSizeInPixels.iWidth;
|
sl@0
|
485 |
TInt bitsPerPixel = aHeader.iBitsPerPixel;
|
sl@0
|
486 |
TInt compression = aHeader.iCompression;
|
sl@0
|
487 |
TInt colour = aHeader.iColor;
|
sl@0
|
488 |
TBool corruptFlag = EFalse;
|
sl@0
|
489 |
|
sl@0
|
490 |
//Need to copy the values from the structure
|
sl@0
|
491 |
TDisplayMode equivalentMode = CBitwiseBitmap::DisplayMode(aHeader.iBitsPerPixel,aHeader.iColor);
|
sl@0
|
492 |
if (equivalentMode == ENone)
|
sl@0
|
493 |
{
|
sl@0
|
494 |
User::Leave(KErrNotSupported);
|
sl@0
|
495 |
}
|
sl@0
|
496 |
if(aHeader.iColor < 0)
|
sl@0
|
497 |
{
|
sl@0
|
498 |
corruptFlag = ETrue;
|
sl@0
|
499 |
}
|
sl@0
|
500 |
//easieast way to check if compression type is appropriate is to ask the compressor
|
sl@0
|
501 |
if (compression && compression!= CBitwiseBitmap::CompressionType(bitsPerPixel,colour))
|
sl@0
|
502 |
{
|
sl@0
|
503 |
corruptFlag = ETrue;
|
sl@0
|
504 |
}
|
sl@0
|
505 |
//danger when using CBitwiseBitmap is they could panic for bad input...
|
sl@0
|
506 |
if (imageHeightPix <= 0 || imageWidthPix <= 0 || bitsPerPixel <= 0)
|
sl@0
|
507 |
{
|
sl@0
|
508 |
corruptFlag = ETrue;
|
sl@0
|
509 |
}
|
sl@0
|
510 |
const TInt KMeg = 1024 * 1024;
|
sl@0
|
511 |
//Test that scanline bytes calculation won't overflow.
|
sl@0
|
512 |
TInt bytesPerPack; // pixel size in memory
|
sl@0
|
513 |
TInt bytesPerCompression; // compressed unit data size
|
sl@0
|
514 |
User::LeaveIfError(CompressedFormatInfo(equivalentMode, bytesPerPack, bytesPerCompression));
|
sl@0
|
515 |
if (imageWidthPix > 2047 * KMeg / bytesPerPack)
|
sl@0
|
516 |
{
|
sl@0
|
517 |
corruptFlag = ETrue;
|
sl@0
|
518 |
}
|
sl@0
|
519 |
TInt uncompressedWidthBytes = CBitwiseBitmap::ByteWidth(imageWidthPix,equivalentMode); //we know this won't overflow, now.
|
sl@0
|
520 |
//use top set bit indexes of 32 bit integer values to estimate when W*H multiply will overflow
|
sl@0
|
521 |
TInt exponentWidth = 0;
|
sl@0
|
522 |
TInt exponentHeight = 0;
|
sl@0
|
523 |
if (uncompressedWidthBytes & 0xffff0000)
|
sl@0
|
524 |
{
|
sl@0
|
525 |
exponentWidth += 16;
|
sl@0
|
526 |
}
|
sl@0
|
527 |
if (imageHeightPix & 0xffff0000)
|
sl@0
|
528 |
{
|
sl@0
|
529 |
exponentHeight += 16;
|
sl@0
|
530 |
}
|
sl@0
|
531 |
if (exponentWidth || exponentHeight)
|
sl@0
|
532 |
{
|
sl@0
|
533 |
if (uncompressedWidthBytes & 0xFF00FF00)
|
sl@0
|
534 |
{
|
sl@0
|
535 |
exponentWidth += 8;
|
sl@0
|
536 |
}
|
sl@0
|
537 |
if (imageHeightPix & 0xFF00FF00)
|
sl@0
|
538 |
{
|
sl@0
|
539 |
exponentHeight += 8;
|
sl@0
|
540 |
}
|
sl@0
|
541 |
if (uncompressedWidthBytes & 0xf0f0f0f0)
|
sl@0
|
542 |
{
|
sl@0
|
543 |
exponentWidth += 4;
|
sl@0
|
544 |
}
|
sl@0
|
545 |
if (imageHeightPix & 0xf0f0f0f0)
|
sl@0
|
546 |
{
|
sl@0
|
547 |
exponentHeight += 4;
|
sl@0
|
548 |
}
|
sl@0
|
549 |
if (uncompressedWidthBytes & 0xCCCCCCCC)
|
sl@0
|
550 |
{
|
sl@0
|
551 |
exponentWidth += 2;
|
sl@0
|
552 |
}
|
sl@0
|
553 |
if (imageHeightPix & 0xCCCCCCCC)
|
sl@0
|
554 |
{
|
sl@0
|
555 |
exponentHeight += 2;
|
sl@0
|
556 |
}
|
sl@0
|
557 |
if (uncompressedWidthBytes & 0xaaaaaaaa)
|
sl@0
|
558 |
{
|
sl@0
|
559 |
exponentWidth += 1;
|
sl@0
|
560 |
}
|
sl@0
|
561 |
if (imageHeightPix & 0xaaaaaaaa)
|
sl@0
|
562 |
{
|
sl@0
|
563 |
exponentHeight += 1;
|
sl@0
|
564 |
}
|
sl@0
|
565 |
TInt exponentTotal = exponentWidth + exponentHeight;
|
sl@0
|
566 |
if (exponentTotal >= 31)
|
sl@0
|
567 |
{
|
sl@0
|
568 |
//The result would defuinitely exceed a signed int
|
sl@0
|
569 |
corruptFlag = ETrue;
|
sl@0
|
570 |
}
|
sl@0
|
571 |
else if (exponentTotal == 30)
|
sl@0
|
572 |
{
|
sl@0
|
573 |
//as a bit test, both "next most significat bits" must be set to cause a carry-over,
|
sl@0
|
574 |
//but that isn't so trivial to test.
|
sl@0
|
575 |
if ((uncompressedWidthBytes >> 1) * imageHeightPix > 1024 * KMeg)
|
sl@0
|
576 |
{
|
sl@0
|
577 |
corruptFlag = ETrue;
|
sl@0
|
578 |
}
|
sl@0
|
579 |
}
|
sl@0
|
580 |
}
|
sl@0
|
581 |
if (compression)
|
sl@0
|
582 |
{
|
sl@0
|
583 |
/* estimate compressed file size limits
|
sl@0
|
584 |
byte compression uses lead code 0..127 = repeat next byte n+1 times. -1..-128 = copy next -n bytes
|
sl@0
|
585 |
16, 24, 32 use byte lead codes as above followed by words, triplets, or dwords
|
sl@0
|
586 |
1,2,4,8,16 all encode any dword alignment buffer padding data as full data values.
|
sl@0
|
587 |
32 doesn't have padding issue. 24 does not encode padding bytes.
|
sl@0
|
588 |
12 bit compression uses 0..15 spare nibble to encode short runs. 0=unique. Can never make file bigger.*/
|
sl@0
|
589 |
if (bitsPerPixel == 12)
|
sl@0
|
590 |
{
|
sl@0
|
591 |
//min file size is 1/16 of rect size
|
sl@0
|
592 |
if (bitmapSize < sizeof(SEpocBitmapHeader) + ((uncompressedWidthBytes * imageHeightPix) / 16))
|
sl@0
|
593 |
{
|
sl@0
|
594 |
corruptFlag = ETrue;
|
sl@0
|
595 |
}
|
sl@0
|
596 |
if (bitmapSize > sizeof(SEpocBitmapHeader) + uncompressedWidthBytes * imageHeightPix)
|
sl@0
|
597 |
{
|
sl@0
|
598 |
corruptFlag = ETrue;
|
sl@0
|
599 |
}
|
sl@0
|
600 |
}
|
sl@0
|
601 |
else
|
sl@0
|
602 |
{
|
sl@0
|
603 |
TInt packedValsPerFile = (uncompressedWidthBytes / bytesPerPack) * imageHeightPix;
|
sl@0
|
604 |
//for some of the compressors 0 means a run of 2, so max 127 means a run of 129
|
sl@0
|
605 |
TInt estMinCompressedBlocksPerFile = (packedValsPerFile - 1) / 129 + 1;
|
sl@0
|
606 |
/* Absolute minimum is blocks of 128 repeats possibly spanning multiple scanlines
|
sl@0
|
607 |
This can't be compressed by the current per-scanline compressor,
|
sl@0
|
608 |
but is acceptable to the decompressor. */
|
sl@0
|
609 |
if (bitmapSize < sizeof(SEpocBitmapHeader) + estMinCompressedBlocksPerFile * (bytesPerCompression + 1))
|
sl@0
|
610 |
{
|
sl@0
|
611 |
corruptFlag = ETrue;
|
sl@0
|
612 |
}
|
sl@0
|
613 |
/* Absolute maximum is to store every pixel as a seperate run of 1 byte.
|
sl@0
|
614 |
The current compressor would never do this... but the file is legal! */
|
sl@0
|
615 |
if (bitmapSize > sizeof(SEpocBitmapHeader) + packedValsPerFile * (bytesPerCompression + 1))
|
sl@0
|
616 |
{
|
sl@0
|
617 |
corruptFlag = ETrue;
|
sl@0
|
618 |
}
|
sl@0
|
619 |
}
|
sl@0
|
620 |
}
|
sl@0
|
621 |
else
|
sl@0
|
622 |
{
|
sl@0
|
623 |
if (bitmapSize != sizeof(SEpocBitmapHeader) + uncompressedWidthBytes * imageHeightPix)
|
sl@0
|
624 |
{
|
sl@0
|
625 |
corruptFlag = ETrue;
|
sl@0
|
626 |
}
|
sl@0
|
627 |
}
|
sl@0
|
628 |
if(corruptFlag)
|
sl@0
|
629 |
{
|
sl@0
|
630 |
User::Leave(KErrCorrupt);
|
sl@0
|
631 |
}
|
sl@0
|
632 |
|
sl@0
|
633 |
}
|
sl@0
|
634 |
|
sl@0
|
635 |
/**
|
sl@0
|
636 |
Internalizes the bit map contents from a stream.
|
sl@0
|
637 |
@param aStream The read stream containing the bit map.
|
sl@0
|
638 |
*/
|
sl@0
|
639 |
EXPORT_C void CBitwiseBitmap::InternalizeL(RReadStream& aStream)
|
sl@0
|
640 |
{
|
sl@0
|
641 |
if (iHeap==NULL || iPile==NULL)
|
sl@0
|
642 |
User::Leave(KErrNoMemory);
|
sl@0
|
643 |
Reset();
|
sl@0
|
644 |
InternalizeHeaderL(aStream,iHeader);
|
sl@0
|
645 |
|
sl@0
|
646 |
TDisplayMode displayMode = DisplayMode(iHeader.iBitsPerPixel,iHeader.iColor);
|
sl@0
|
647 |
if(displayMode == ENone)
|
sl@0
|
648 |
{
|
sl@0
|
649 |
Reset();
|
sl@0
|
650 |
User::Leave(KErrCorrupt);
|
sl@0
|
651 |
}
|
sl@0
|
652 |
|
sl@0
|
653 |
iSettings.SetDisplayModes(displayMode);
|
sl@0
|
654 |
|
sl@0
|
655 |
iByteWidth = ByteWidth(iHeader.iSizeInPixels.iWidth,iSettings.CurrentDisplayMode());
|
sl@0
|
656 |
|
sl@0
|
657 |
TUint8* data=NULL;
|
sl@0
|
658 |
TInt bytesize = iByteWidth * iHeader.iSizeInPixels.iHeight;
|
sl@0
|
659 |
if (bytesize > 0)
|
sl@0
|
660 |
{
|
sl@0
|
661 |
data = iPile->Alloc(bytesize);
|
sl@0
|
662 |
iDataOffset = data - iPile->ChunkBase();
|
sl@0
|
663 |
if (!data)
|
sl@0
|
664 |
{
|
sl@0
|
665 |
iDataOffset=0;
|
sl@0
|
666 |
Reset();
|
sl@0
|
667 |
User::LeaveNoMemory();
|
sl@0
|
668 |
}
|
sl@0
|
669 |
}
|
sl@0
|
670 |
TRAPD(err,DoInternalizeL(aStream,iHeader.iBitmapSize-iHeader.iStructSize,DataAddress()));
|
sl@0
|
671 |
if (err!=KErrNone)
|
sl@0
|
672 |
{
|
sl@0
|
673 |
Reset();
|
sl@0
|
674 |
User::Leave(err);
|
sl@0
|
675 |
}
|
sl@0
|
676 |
}
|
sl@0
|
677 |
|
sl@0
|
678 |
|
sl@0
|
679 |
void CBitwiseBitmap::DoInternalizeL(RReadStream& aStream,TInt aSrceSize,TUint32* aBase)
|
sl@0
|
680 |
{
|
sl@0
|
681 |
if (iHeader.iCompression==ENoBitmapCompression)
|
sl@0
|
682 |
aStream.ReadL((TUint8*)aBase,aSrceSize);
|
sl@0
|
683 |
else if (iHeader.iCompression < ERLECompressionLast)
|
sl@0
|
684 |
{
|
sl@0
|
685 |
TBitmapfileCompression compression = iHeader.iCompression;
|
sl@0
|
686 |
iHeader.iCompression = ENoBitmapCompression;
|
sl@0
|
687 |
iHeader.iBitmapSize = iByteWidth*iHeader.iSizeInPixels.iHeight+sizeof(SEpocBitmapHeader);
|
sl@0
|
688 |
DoInternalizeCompressedDataL(aStream,aSrceSize,aBase,compression);
|
sl@0
|
689 |
}
|
sl@0
|
690 |
else
|
sl@0
|
691 |
CheckHeaderIsValidL(iHeader);
|
sl@0
|
692 |
}
|
sl@0
|
693 |
|
sl@0
|
694 |
EXPORT_C TDisplayMode CBitwiseBitmap::DisplayMode() const
|
sl@0
|
695 |
{
|
sl@0
|
696 |
return iSettings.CurrentDisplayMode();
|
sl@0
|
697 |
}
|
sl@0
|
698 |
|
sl@0
|
699 |
EXPORT_C TInt CBitwiseBitmap::HorizontalPixelsToTwips(TInt aPixels) const
|
sl@0
|
700 |
{
|
sl@0
|
701 |
if (iHeader.iSizeInPixels.iWidth==0)
|
sl@0
|
702 |
return(0);
|
sl@0
|
703 |
TInt twips;
|
sl@0
|
704 |
twips = (aPixels*iHeader.iSizeInTwips.iWidth+(iHeader.iSizeInPixels.iWidth/2))/iHeader.iSizeInPixels.iWidth;
|
sl@0
|
705 |
return(twips);
|
sl@0
|
706 |
}
|
sl@0
|
707 |
|
sl@0
|
708 |
EXPORT_C TInt CBitwiseBitmap::VerticalPixelsToTwips(TInt aPixels) const
|
sl@0
|
709 |
{
|
sl@0
|
710 |
if (iHeader.iSizeInPixels.iHeight==0)
|
sl@0
|
711 |
return(0);
|
sl@0
|
712 |
TInt twips;
|
sl@0
|
713 |
twips = (aPixels*iHeader.iSizeInTwips.iHeight+(iHeader.iSizeInPixels.iHeight/2))/iHeader.iSizeInPixels.iHeight;
|
sl@0
|
714 |
return (twips);
|
sl@0
|
715 |
}
|
sl@0
|
716 |
|
sl@0
|
717 |
EXPORT_C TSize CBitwiseBitmap::SizeInPixels() const
|
sl@0
|
718 |
{
|
sl@0
|
719 |
return(iHeader.iSizeInPixels);
|
sl@0
|
720 |
}
|
sl@0
|
721 |
|
sl@0
|
722 |
EXPORT_C TSize CBitwiseBitmap::SizeInTwips() const
|
sl@0
|
723 |
{
|
sl@0
|
724 |
return(iHeader.iSizeInTwips);
|
sl@0
|
725 |
}
|
sl@0
|
726 |
|
sl@0
|
727 |
EXPORT_C TInt CBitwiseBitmap::HorizontalTwipsToPixels(TInt aTwips) const
|
sl@0
|
728 |
{
|
sl@0
|
729 |
if (iHeader.iSizeInTwips.iWidth==0)
|
sl@0
|
730 |
return(0);
|
sl@0
|
731 |
TInt pixels;
|
sl@0
|
732 |
pixels = (aTwips*iHeader.iSizeInPixels.iWidth+(iHeader.iSizeInTwips.iWidth/2))/iHeader.iSizeInTwips.iWidth;
|
sl@0
|
733 |
return(pixels);
|
sl@0
|
734 |
}
|
sl@0
|
735 |
|
sl@0
|
736 |
EXPORT_C TInt CBitwiseBitmap::VerticalTwipsToPixels(TInt aTwips) const
|
sl@0
|
737 |
{
|
sl@0
|
738 |
if (iHeader.iSizeInTwips.iHeight==0)
|
sl@0
|
739 |
return(0);
|
sl@0
|
740 |
TInt pixels;
|
sl@0
|
741 |
pixels = (aTwips*iHeader.iSizeInPixels.iHeight+(iHeader.iSizeInTwips.iHeight/2))/iHeader.iSizeInTwips.iHeight;
|
sl@0
|
742 |
return(pixels);
|
sl@0
|
743 |
}
|
sl@0
|
744 |
|
sl@0
|
745 |
/**
|
sl@0
|
746 |
The method retrieves the red, green, blue (RGB) color value of the pixel with
|
sl@0
|
747 |
specified coordinates.
|
sl@0
|
748 |
Note: The method works for uncompressed bitmaps and extended bitmaps only.
|
sl@0
|
749 |
@internalComponent
|
sl@0
|
750 |
@released
|
sl@0
|
751 |
@pre aBase != NULL;
|
sl@0
|
752 |
@param aColor It will be initialized with the pixel color value on success, otherwise
|
sl@0
|
753 |
aColor value will be left unchanged.
|
sl@0
|
754 |
@param aPixel Pixel coordinates.
|
sl@0
|
755 |
@param aBase It points to the beginning of the bitmap data.
|
sl@0
|
756 |
*/
|
sl@0
|
757 |
EXPORT_C void CBitwiseBitmap::GetPixel(TRgb& aColor,const TPoint& aPixel,TUint32* aBase, CFbsRasterizer* aRasterizer) const
|
sl@0
|
758 |
{
|
sl@0
|
759 |
// This operation is not currently supported for compressed bitmaps.
|
sl@0
|
760 |
if (iHeader.iCompression != ENoBitmapCompression && iHeader.iCompression != EProprietaryCompression)
|
sl@0
|
761 |
{
|
sl@0
|
762 |
__ASSERT_DEBUG(EFalse, ::Panic(EFbsBitmapInvalidCompression));
|
sl@0
|
763 |
return;
|
sl@0
|
764 |
}
|
sl@0
|
765 |
if (!iDataOffset)
|
sl@0
|
766 |
return;
|
sl@0
|
767 |
|
sl@0
|
768 |
TInt x=aPixel.iX,y=aPixel.iY;
|
sl@0
|
769 |
if (x < -iHeader.iSizeInPixels.iWidth)
|
sl@0
|
770 |
x %= iHeader.iSizeInPixels.iWidth;
|
sl@0
|
771 |
if (y < -iHeader.iSizeInPixels.iHeight)
|
sl@0
|
772 |
y %= iHeader.iSizeInPixels.iHeight;
|
sl@0
|
773 |
if (x < 0)
|
sl@0
|
774 |
x += iHeader.iSizeInPixels.iWidth;
|
sl@0
|
775 |
if (y < 0)
|
sl@0
|
776 |
y += iHeader.iSizeInPixels.iHeight;
|
sl@0
|
777 |
|
sl@0
|
778 |
if (iHeader.iCompression == EProprietaryCompression)
|
sl@0
|
779 |
{
|
sl@0
|
780 |
if (aRasterizer)
|
sl@0
|
781 |
{
|
sl@0
|
782 |
TUint32* slptr = const_cast<TUint32*>(aRasterizer->ScanLine(Extra()->iSerialNumber, TPoint(x,y), 1));
|
sl@0
|
783 |
if (slptr)
|
sl@0
|
784 |
{
|
sl@0
|
785 |
aColor = GetRgbPixelEx(x, slptr);
|
sl@0
|
786 |
}
|
sl@0
|
787 |
else
|
sl@0
|
788 |
{
|
sl@0
|
789 |
// wrong rasterizer for this extended bitmap - return white pixel
|
sl@0
|
790 |
aColor = KRgbWhite;
|
sl@0
|
791 |
}
|
sl@0
|
792 |
}
|
sl@0
|
793 |
else
|
sl@0
|
794 |
{
|
sl@0
|
795 |
// no rasterizer - return white pixel
|
sl@0
|
796 |
aColor = KRgbWhite;
|
sl@0
|
797 |
}
|
sl@0
|
798 |
}
|
sl@0
|
799 |
else
|
sl@0
|
800 |
{
|
sl@0
|
801 |
aColor = GetRgbPixelEx(x,ScanLineAddress(aBase,y));
|
sl@0
|
802 |
}
|
sl@0
|
803 |
}
|
sl@0
|
804 |
|
sl@0
|
805 |
EXPORT_C TInt CBitwiseBitmap::GetScanLinePtr(TUint32*& aSlptr, TInt& aLength,TPoint& aPixel,TUint32* aBase, TLineScanningPosition& aLineScanningPosition) const
|
sl@0
|
806 |
{
|
sl@0
|
807 |
if (!iDataOffset)
|
sl@0
|
808 |
return KErrNone;
|
sl@0
|
809 |
if (aPixel.iX >= iHeader.iSizeInPixels.iWidth || aPixel.iX < -iHeader.iSizeInPixels.iWidth)
|
sl@0
|
810 |
aPixel.iX %= iHeader.iSizeInPixels.iWidth;
|
sl@0
|
811 |
if (aPixel.iY >= iHeader.iSizeInPixels.iHeight || aPixel.iY < -iHeader.iSizeInPixels.iHeight)
|
sl@0
|
812 |
aPixel.iY %= iHeader.iSizeInPixels.iHeight;
|
sl@0
|
813 |
if (aPixel.iX < 0)
|
sl@0
|
814 |
aPixel.iX += iHeader.iSizeInPixels.iWidth;
|
sl@0
|
815 |
if (aPixel.iY < 0)
|
sl@0
|
816 |
aPixel.iY += iHeader.iSizeInPixels.iHeight;
|
sl@0
|
817 |
if (aPixel.iX + aLength > iHeader.iSizeInPixels.iWidth)
|
sl@0
|
818 |
aLength = iHeader.iSizeInPixels.iWidth - aPixel.iX;
|
sl@0
|
819 |
if (iHeader.iCompression != ENoBitmapCompression)
|
sl@0
|
820 |
{
|
sl@0
|
821 |
return DoGetScanLinePtr(aSlptr, aPixel,aLength,aBase,aLineScanningPosition);
|
sl@0
|
822 |
}
|
sl@0
|
823 |
else
|
sl@0
|
824 |
{
|
sl@0
|
825 |
aSlptr = ScanLineAddress(aBase,aPixel.iY);
|
sl@0
|
826 |
}
|
sl@0
|
827 |
return KErrNone;
|
sl@0
|
828 |
}
|
sl@0
|
829 |
|
sl@0
|
830 |
EXPORT_C TInt CBitwiseBitmap::GetScanLinePtr(TUint32*& aSlptr, TPoint& aPixel,TInt aLength,TUint32* aBase, TLineScanningPosition& aLineScanningPosition) const
|
sl@0
|
831 |
{
|
sl@0
|
832 |
return GetScanLinePtr(aSlptr, aLength,aPixel,aBase, aLineScanningPosition);
|
sl@0
|
833 |
}
|
sl@0
|
834 |
|
sl@0
|
835 |
TUint8 CBitwiseBitmap::GetGrayPixelEx(TInt aX,TUint32* aScanlinePtr) const
|
sl@0
|
836 |
{
|
sl@0
|
837 |
// returns pixel as EGray256 value (0 - 255)
|
sl@0
|
838 |
|
sl@0
|
839 |
if (iHeader.iColor)
|
sl@0
|
840 |
return TUint8(GetRgbPixelEx(aX,aScanlinePtr)._Gray256());
|
sl@0
|
841 |
else
|
sl@0
|
842 |
{
|
sl@0
|
843 |
if (!aScanlinePtr)
|
sl@0
|
844 |
return 0;
|
sl@0
|
845 |
|
sl@0
|
846 |
if (aX >= iHeader.iSizeInPixels.iWidth)
|
sl@0
|
847 |
aX %= iHeader.iSizeInPixels.iWidth;
|
sl@0
|
848 |
|
sl@0
|
849 |
switch (iHeader.iBitsPerPixel)
|
sl@0
|
850 |
{
|
sl@0
|
851 |
case 2:
|
sl@0
|
852 |
{
|
sl@0
|
853 |
TUint32 col = *(aScanlinePtr+(aX>>4));
|
sl@0
|
854 |
col>>=((aX&0xf)<<1);
|
sl@0
|
855 |
col&=3;
|
sl@0
|
856 |
col |= (col << 6) | (col<<4) | (col<<2);
|
sl@0
|
857 |
return TUint8(col);
|
sl@0
|
858 |
}
|
sl@0
|
859 |
case 4:
|
sl@0
|
860 |
{
|
sl@0
|
861 |
TUint32 col = *(aScanlinePtr+(aX>>3));
|
sl@0
|
862 |
col >>= ((aX&7)<<2);
|
sl@0
|
863 |
col &= 0xf;
|
sl@0
|
864 |
return TUint8(col |= (col << 4));
|
sl@0
|
865 |
}
|
sl@0
|
866 |
case 1:
|
sl@0
|
867 |
{
|
sl@0
|
868 |
TUint32 col = *(aScanlinePtr+(aX>>5));
|
sl@0
|
869 |
if (col&(1<<(aX&0x1f))) return 255 ;
|
sl@0
|
870 |
return 0;
|
sl@0
|
871 |
}
|
sl@0
|
872 |
case 8:
|
sl@0
|
873 |
return *(((TUint8*)aScanlinePtr) + aX);
|
sl@0
|
874 |
default:
|
sl@0
|
875 |
return 0;
|
sl@0
|
876 |
}
|
sl@0
|
877 |
|
sl@0
|
878 |
}
|
sl@0
|
879 |
}
|
sl@0
|
880 |
|
sl@0
|
881 |
TRgb CBitwiseBitmap::GetRgbPixelEx(TInt aX,TUint32* aScanlinePtr) const
|
sl@0
|
882 |
{
|
sl@0
|
883 |
// returns pixel as TRgb
|
sl@0
|
884 |
|
sl@0
|
885 |
if (iHeader.iColor)
|
sl@0
|
886 |
{
|
sl@0
|
887 |
if (!aScanlinePtr)
|
sl@0
|
888 |
return KRgbBlack;
|
sl@0
|
889 |
|
sl@0
|
890 |
if (aX>=iHeader.iSizeInPixels.iWidth)
|
sl@0
|
891 |
aX%=iHeader.iSizeInPixels.iWidth;
|
sl@0
|
892 |
|
sl@0
|
893 |
switch (iHeader.iBitsPerPixel)
|
sl@0
|
894 |
{
|
sl@0
|
895 |
case 32:
|
sl@0
|
896 |
if (iSettings.CurrentDisplayMode() == EColor16MAP)
|
sl@0
|
897 |
return TRgb::_Color16MAP(*(aScanlinePtr + aX));
|
sl@0
|
898 |
else if (iSettings.CurrentDisplayMode() == EColor16MA)
|
sl@0
|
899 |
return TRgb::_Color16MA(*(aScanlinePtr + aX));
|
sl@0
|
900 |
//scanLineBytePointer format: BGR0 - 0RGB as INT32.
|
sl@0
|
901 |
else
|
sl@0
|
902 |
return TRgb::_Color16MU(*(aScanlinePtr + aX));
|
sl@0
|
903 |
case 24:
|
sl@0
|
904 |
{
|
sl@0
|
905 |
TUint8* scanLineBytePointer = (TUint8*)aScanlinePtr + aX * 3;
|
sl@0
|
906 |
TInt color16M = *scanLineBytePointer++;
|
sl@0
|
907 |
color16M |= (*scanLineBytePointer++) << 8;
|
sl@0
|
908 |
color16M |= (*scanLineBytePointer++) << 16;
|
sl@0
|
909 |
return TRgb::_Color16M(color16M);
|
sl@0
|
910 |
}
|
sl@0
|
911 |
case 16:
|
sl@0
|
912 |
return TRgb::_Color64K(*(((TUint16*)aScanlinePtr) + aX));
|
sl@0
|
913 |
case 12:
|
sl@0
|
914 |
return TRgb::_Color4K(*(((TUint16*)aScanlinePtr) + aX));
|
sl@0
|
915 |
case 8:
|
sl@0
|
916 |
return TRgb::Color256(*((TUint8*)aScanlinePtr + aX));
|
sl@0
|
917 |
case 4:
|
sl@0
|
918 |
{
|
sl@0
|
919 |
TUint8 colorIndex = *((TUint8*)aScanlinePtr + (aX >> 1));
|
sl@0
|
920 |
if (aX & 1)
|
sl@0
|
921 |
colorIndex >>= 4;
|
sl@0
|
922 |
return TRgb::Color16(colorIndex & 0xf);
|
sl@0
|
923 |
}
|
sl@0
|
924 |
default:
|
sl@0
|
925 |
return KRgbBlack;
|
sl@0
|
926 |
}
|
sl@0
|
927 |
}
|
sl@0
|
928 |
else
|
sl@0
|
929 |
return TRgb::_Gray256(GetGrayPixelEx(aX,aScanlinePtr));
|
sl@0
|
930 |
}
|
sl@0
|
931 |
|
sl@0
|
932 |
void CBitwiseBitmap::GetRgbPixelExMany(TInt aX,TUint32* aScanlinePtr, TUint32* aDest,TInt aLength) const
|
sl@0
|
933 |
{
|
sl@0
|
934 |
__ASSERT_DEBUG(aScanlinePtr && aDest, User::Invariant());
|
sl@0
|
935 |
__ASSERT_DEBUG(aX >= 0, User::Invariant());
|
sl@0
|
936 |
__ASSERT_DEBUG(aLength >= 0, User::Invariant());
|
sl@0
|
937 |
__ASSERT_DEBUG(aX+aLength <= iHeader.iSizeInPixels.iWidth, User::Invariant());
|
sl@0
|
938 |
|
sl@0
|
939 |
union {
|
sl@0
|
940 |
TUint8* scanPtr8;
|
sl@0
|
941 |
TUint16* scanPtr16;
|
sl@0
|
942 |
TUint32* scanPtr32;
|
sl@0
|
943 |
};
|
sl@0
|
944 |
TUint32 color;
|
sl@0
|
945 |
TUint32 rawData;
|
sl@0
|
946 |
const TUint32 opaqueAlpha = 0xff000000;
|
sl@0
|
947 |
TUint32 color16MA = 0; // // cached map to color
|
sl@0
|
948 |
|
sl@0
|
949 |
if (aLength < 1)
|
sl@0
|
950 |
{
|
sl@0
|
951 |
return;
|
sl@0
|
952 |
}
|
sl@0
|
953 |
|
sl@0
|
954 |
if (iHeader.iColor)
|
sl@0
|
955 |
{
|
sl@0
|
956 |
switch (iHeader.iBitsPerPixel)
|
sl@0
|
957 |
{
|
sl@0
|
958 |
case 4:
|
sl@0
|
959 |
{
|
sl@0
|
960 |
scanPtr8 = reinterpret_cast<TUint8*>(aScanlinePtr);
|
sl@0
|
961 |
TUint32 color16 = EFirstTime; // map source color: 16 color mode
|
sl@0
|
962 |
do
|
sl@0
|
963 |
{
|
sl@0
|
964 |
rawData = (aX & 1) ? (scanPtr8[aX >> 1] >> 4) : (scanPtr8[aX >> 1] &0x0F);
|
sl@0
|
965 |
if ((rawData != color16))
|
sl@0
|
966 |
{ // first pixel or colour change
|
sl@0
|
967 |
color16MA = TRgb::Color16(rawData)._Color16MA();
|
sl@0
|
968 |
color16 = rawData;
|
sl@0
|
969 |
}
|
sl@0
|
970 |
*aDest++ = color16MA;
|
sl@0
|
971 |
aX++;
|
sl@0
|
972 |
}
|
sl@0
|
973 |
while (--aLength);
|
sl@0
|
974 |
return;
|
sl@0
|
975 |
}
|
sl@0
|
976 |
case 8:
|
sl@0
|
977 |
{
|
sl@0
|
978 |
scanPtr8 = reinterpret_cast<TUint8*>(aScanlinePtr) + aX;
|
sl@0
|
979 |
const TUint32* lookup = DynamicPalette::DefaultColor256Util()->iColorTable;
|
sl@0
|
980 |
TUint32 color256 = EFirstTime; // map source color: 256 color
|
sl@0
|
981 |
do
|
sl@0
|
982 |
{
|
sl@0
|
983 |
rawData = *scanPtr8++;
|
sl@0
|
984 |
if ((rawData != color256))
|
sl@0
|
985 |
{ // colour change or first pixel
|
sl@0
|
986 |
color16MA = lookup[rawData];
|
sl@0
|
987 |
color256 = rawData;
|
sl@0
|
988 |
// translate between bgr & rgb
|
sl@0
|
989 |
color16MA = ((color16MA & 0x0000ff) << 16) | (color16MA & 0x00ff00) | ((color16MA & 0xff0000) >> 16) | opaqueAlpha;
|
sl@0
|
990 |
}
|
sl@0
|
991 |
*aDest++ = color16MA;
|
sl@0
|
992 |
}
|
sl@0
|
993 |
while (--aLength);
|
sl@0
|
994 |
return;
|
sl@0
|
995 |
}
|
sl@0
|
996 |
case 12:
|
sl@0
|
997 |
{
|
sl@0
|
998 |
scanPtr16 = reinterpret_cast<TUint16*>(aScanlinePtr) + aX;
|
sl@0
|
999 |
TUint32 color4K = EFirstTime; // map source color: 4K color black => 16M color black
|
sl@0
|
1000 |
do
|
sl@0
|
1001 |
{
|
sl@0
|
1002 |
rawData = *scanPtr16++;
|
sl@0
|
1003 |
if ((rawData != color4K))
|
sl@0
|
1004 |
{ // colour change
|
sl@0
|
1005 |
color16MA = TRgb::_Color4K(rawData)._Color16MA();
|
sl@0
|
1006 |
color4K = rawData;
|
sl@0
|
1007 |
}
|
sl@0
|
1008 |
*aDest++ = color16MA;
|
sl@0
|
1009 |
}
|
sl@0
|
1010 |
while (--aLength);
|
sl@0
|
1011 |
return;
|
sl@0
|
1012 |
}
|
sl@0
|
1013 |
case 16:
|
sl@0
|
1014 |
{
|
sl@0
|
1015 |
scanPtr16 = reinterpret_cast<TUint16*>(aScanlinePtr) + aX;
|
sl@0
|
1016 |
const TUint16* lowAdd = Convert16to32bppLow();
|
sl@0
|
1017 |
const TUint32* highAdd = Convert16to32bppHigh();
|
sl@0
|
1018 |
TUint32 color64K = EFirstTime; // map source color: 64K color black => 16M color black
|
sl@0
|
1019 |
do
|
sl@0
|
1020 |
{
|
sl@0
|
1021 |
rawData = *scanPtr16++;
|
sl@0
|
1022 |
if ((rawData != color64K))
|
sl@0
|
1023 |
{ // colour change
|
sl@0
|
1024 |
color16MA = highAdd[rawData >> 8] | lowAdd[rawData & 0x00FF];
|
sl@0
|
1025 |
color64K = rawData;
|
sl@0
|
1026 |
}
|
sl@0
|
1027 |
*aDest++ = color16MA;
|
sl@0
|
1028 |
}
|
sl@0
|
1029 |
while (--aLength);
|
sl@0
|
1030 |
return;
|
sl@0
|
1031 |
}
|
sl@0
|
1032 |
case 24:
|
sl@0
|
1033 |
{
|
sl@0
|
1034 |
scanPtr8 = reinterpret_cast<TUint8*>(aScanlinePtr) + aX*3;
|
sl@0
|
1035 |
do
|
sl@0
|
1036 |
{
|
sl@0
|
1037 |
if ((aLength < 4) || (3 & (TUint32)(scanPtr8)))
|
sl@0
|
1038 |
{
|
sl@0
|
1039 |
aLength--;
|
sl@0
|
1040 |
color = *scanPtr8++;
|
sl@0
|
1041 |
color |= (*scanPtr8++) << 8;
|
sl@0
|
1042 |
color |= (*scanPtr8++) << 16;
|
sl@0
|
1043 |
*aDest++ = color | opaqueAlpha;
|
sl@0
|
1044 |
}
|
sl@0
|
1045 |
else
|
sl@0
|
1046 |
{ // source is now TUint32 aligned - so read source as blocks of 3 TUint32's & write as 4
|
sl@0
|
1047 |
TUint32 word1, word2, word3;
|
sl@0
|
1048 |
TInt iter = (aLength / 4) - 1;
|
sl@0
|
1049 |
aLength = aLength & 0x0003;
|
sl@0
|
1050 |
do
|
sl@0
|
1051 |
{
|
sl@0
|
1052 |
word1 = *scanPtr32++;
|
sl@0
|
1053 |
*aDest++ = word1 | opaqueAlpha;
|
sl@0
|
1054 |
word2 = *scanPtr32++;
|
sl@0
|
1055 |
color = (word1 >> 24) | ((word2 & 0xFFFF) << 8);
|
sl@0
|
1056 |
*aDest++ = color | opaqueAlpha;
|
sl@0
|
1057 |
word3 = *scanPtr32++;
|
sl@0
|
1058 |
color = (word2 >> 16) | ((word3 & 0x00FF) << 16);
|
sl@0
|
1059 |
*aDest++ = color | opaqueAlpha;
|
sl@0
|
1060 |
*aDest++ = (word3 >> 8) | opaqueAlpha;
|
sl@0
|
1061 |
}
|
sl@0
|
1062 |
while (iter--);
|
sl@0
|
1063 |
}
|
sl@0
|
1064 |
}
|
sl@0
|
1065 |
while (aLength);
|
sl@0
|
1066 |
return;
|
sl@0
|
1067 |
}
|
sl@0
|
1068 |
case 32:
|
sl@0
|
1069 |
{
|
sl@0
|
1070 |
scanPtr32 = aScanlinePtr + aX;
|
sl@0
|
1071 |
if(iSettings.CurrentDisplayMode() == EColor16MAP)
|
sl@0
|
1072 |
{ // unrolled loop uses "Duff's Device"
|
sl@0
|
1073 |
const TUint16* normTable = PtrTo16BitNormalisationTable();
|
sl@0
|
1074 |
--aLength;
|
sl@0
|
1075 |
TInt iter = aLength / 8;
|
sl@0
|
1076 |
switch(aLength & 7)
|
sl@0
|
1077 |
{
|
sl@0
|
1078 |
case 7:
|
sl@0
|
1079 |
do {
|
sl@0
|
1080 |
*aDest++ = PMA2NonPMAPixel(*scanPtr32++, normTable);
|
sl@0
|
1081 |
case 6:
|
sl@0
|
1082 |
*aDest++ = PMA2NonPMAPixel(*scanPtr32++, normTable);
|
sl@0
|
1083 |
case 5:
|
sl@0
|
1084 |
*aDest++ = PMA2NonPMAPixel(*scanPtr32++, normTable);
|
sl@0
|
1085 |
case 4:
|
sl@0
|
1086 |
*aDest++ = PMA2NonPMAPixel(*scanPtr32++, normTable);
|
sl@0
|
1087 |
case 3:
|
sl@0
|
1088 |
*aDest++ = PMA2NonPMAPixel(*scanPtr32++, normTable);
|
sl@0
|
1089 |
case 2:
|
sl@0
|
1090 |
*aDest++ = PMA2NonPMAPixel(*scanPtr32++, normTable);
|
sl@0
|
1091 |
case 1:
|
sl@0
|
1092 |
*aDest++ = PMA2NonPMAPixel(*scanPtr32++, normTable);
|
sl@0
|
1093 |
case 0:
|
sl@0
|
1094 |
*aDest++ = PMA2NonPMAPixel(*scanPtr32++, normTable);
|
sl@0
|
1095 |
} while (iter-- > 0);
|
sl@0
|
1096 |
}
|
sl@0
|
1097 |
}
|
sl@0
|
1098 |
else if (iSettings.CurrentDisplayMode() == EColor16MU)
|
sl@0
|
1099 |
{ // unrolled loop uses "Duff's Device"
|
sl@0
|
1100 |
--aLength;
|
sl@0
|
1101 |
TInt iter = aLength / 8;
|
sl@0
|
1102 |
switch(aLength & 7)
|
sl@0
|
1103 |
{
|
sl@0
|
1104 |
case 7:
|
sl@0
|
1105 |
do {
|
sl@0
|
1106 |
*aDest++ = (*scanPtr32++) | opaqueAlpha;
|
sl@0
|
1107 |
case 6:
|
sl@0
|
1108 |
*aDest++ = (*scanPtr32++) | opaqueAlpha;
|
sl@0
|
1109 |
case 5:
|
sl@0
|
1110 |
*aDest++ = (*scanPtr32++) | opaqueAlpha;
|
sl@0
|
1111 |
case 4:
|
sl@0
|
1112 |
*aDest++ = (*scanPtr32++) | opaqueAlpha;
|
sl@0
|
1113 |
case 3:
|
sl@0
|
1114 |
*aDest++ = (*scanPtr32++) | opaqueAlpha;
|
sl@0
|
1115 |
case 2:
|
sl@0
|
1116 |
*aDest++ = (*scanPtr32++) | opaqueAlpha;
|
sl@0
|
1117 |
case 1:
|
sl@0
|
1118 |
*aDest++ = (*scanPtr32++) | opaqueAlpha;
|
sl@0
|
1119 |
case 0:
|
sl@0
|
1120 |
*aDest++ = (*scanPtr32++) | opaqueAlpha;
|
sl@0
|
1121 |
} while (iter-- > 0);
|
sl@0
|
1122 |
}
|
sl@0
|
1123 |
}
|
sl@0
|
1124 |
else // EColor16MA
|
sl@0
|
1125 |
{
|
sl@0
|
1126 |
Mem::Move(aDest, scanPtr32, aLength * 4);
|
sl@0
|
1127 |
}
|
sl@0
|
1128 |
return;
|
sl@0
|
1129 |
}
|
sl@0
|
1130 |
default:
|
sl@0
|
1131 |
return;
|
sl@0
|
1132 |
}
|
sl@0
|
1133 |
}
|
sl@0
|
1134 |
else
|
sl@0
|
1135 |
{
|
sl@0
|
1136 |
switch (iHeader.iBitsPerPixel)
|
sl@0
|
1137 |
{
|
sl@0
|
1138 |
case 1:
|
sl@0
|
1139 |
{
|
sl@0
|
1140 |
do
|
sl@0
|
1141 |
{
|
sl@0
|
1142 |
*aDest++ = TUint32(COLOR_VALUE(aScanlinePtr, aX) ? 0xFFFFFFFF : 0xFF000000);
|
sl@0
|
1143 |
aX++;
|
sl@0
|
1144 |
}
|
sl@0
|
1145 |
while (--aLength);
|
sl@0
|
1146 |
break;
|
sl@0
|
1147 |
}
|
sl@0
|
1148 |
case 8:
|
sl@0
|
1149 |
{
|
sl@0
|
1150 |
scanPtr8 = reinterpret_cast<TUint8*>(aScanlinePtr) + aX;
|
sl@0
|
1151 |
do
|
sl@0
|
1152 |
{
|
sl@0
|
1153 |
rawData = *scanPtr8++;
|
sl@0
|
1154 |
color16MA = rawData | (rawData << 8) | (rawData << 16) | opaqueAlpha;
|
sl@0
|
1155 |
*aDest++ = color16MA;
|
sl@0
|
1156 |
}
|
sl@0
|
1157 |
while (--aLength);
|
sl@0
|
1158 |
break;
|
sl@0
|
1159 |
}
|
sl@0
|
1160 |
default:
|
sl@0
|
1161 |
{
|
sl@0
|
1162 |
do
|
sl@0
|
1163 |
{
|
sl@0
|
1164 |
rawData = GetGrayPixelEx(aX++,aScanlinePtr);
|
sl@0
|
1165 |
color16MA = rawData | (rawData << 8) | (rawData << 16) | opaqueAlpha;
|
sl@0
|
1166 |
*aDest++ = color16MA;
|
sl@0
|
1167 |
}
|
sl@0
|
1168 |
while (--aLength);
|
sl@0
|
1169 |
}
|
sl@0
|
1170 |
}
|
sl@0
|
1171 |
}
|
sl@0
|
1172 |
}
|
sl@0
|
1173 |
/**
|
sl@0
|
1174 |
The method retrieves the RGB color values from the scanline, and converts them
|
sl@0
|
1175 |
into the destination screen-mode pixel format. This method handles the special
|
sl@0
|
1176 |
case when the destination mode is EColor16MAP (32bit with alpha values premultiplied
|
sl@0
|
1177 |
with the color channels. Calls GetRgbPixelExMany for values not 32 bit, as there is no
|
sl@0
|
1178 |
alpha information in these color modes. For color mode EColor16MU, no conversion is
|
sl@0
|
1179 |
performed (as alpha is assumed to be 1).
|
sl@0
|
1180 |
@internalComponent
|
sl@0
|
1181 |
@released
|
sl@0
|
1182 |
@param aX The x co-ordinate the scanline data needs to be retrieved from.
|
sl@0
|
1183 |
@param aScanlinePtr The scanline pointer, i.e. the source data.
|
sl@0
|
1184 |
@param aDest The pointer to the destination buffer. This is where the output is stored.
|
sl@0
|
1185 |
@param aLength The number of bytes to be copied. This value must be a multiple of 4.
|
sl@0
|
1186 |
*/
|
sl@0
|
1187 |
void CBitwiseBitmap::GetRgbPixelExMany16MAP(TInt aX,TUint32* aScanlinePtr,TUint32* aDest,TInt aLength) const
|
sl@0
|
1188 |
{
|
sl@0
|
1189 |
__ASSERT_DEBUG(aScanlinePtr && aDest, User::Invariant());
|
sl@0
|
1190 |
__ASSERT_DEBUG(aX >= 0, User::Invariant());
|
sl@0
|
1191 |
__ASSERT_DEBUG(aLength >= 0, User::Invariant());
|
sl@0
|
1192 |
__ASSERT_DEBUG(aX+aLength <= iHeader.iSizeInPixels.iWidth, User::Invariant());
|
sl@0
|
1193 |
|
sl@0
|
1194 |
TUint32* scanPtr32;
|
sl@0
|
1195 |
|
sl@0
|
1196 |
if ((iHeader.iColor) && (iHeader.iBitsPerPixel == 32))
|
sl@0
|
1197 |
{
|
sl@0
|
1198 |
scanPtr32 = aScanlinePtr + aX;
|
sl@0
|
1199 |
if (DisplayMode() == EColor16MAP)
|
sl@0
|
1200 |
{
|
sl@0
|
1201 |
Mem::Move(aDest, scanPtr32, aLength<<2);
|
sl@0
|
1202 |
}
|
sl@0
|
1203 |
else if(DisplayMode()==EColor16MA)
|
sl@0
|
1204 |
{
|
sl@0
|
1205 |
TUint32* ptrLimit = aDest + aLength;
|
sl@0
|
1206 |
const TInt32 zero = 0;
|
sl@0
|
1207 |
while (aDest < ptrLimit)
|
sl@0
|
1208 |
{
|
sl@0
|
1209 |
TUint32 value = *scanPtr32++;
|
sl@0
|
1210 |
TUint32 tA = value >> 24;
|
sl@0
|
1211 |
if (tA == 0)
|
sl@0
|
1212 |
{
|
sl@0
|
1213 |
*aDest++ = zero;
|
sl@0
|
1214 |
}
|
sl@0
|
1215 |
else if (tA != 255)
|
sl@0
|
1216 |
{
|
sl@0
|
1217 |
*aDest++ = NonPMA2PMAPixel(value);
|
sl@0
|
1218 |
}
|
sl@0
|
1219 |
else
|
sl@0
|
1220 |
{
|
sl@0
|
1221 |
*aDest++ = value;
|
sl@0
|
1222 |
}
|
sl@0
|
1223 |
}
|
sl@0
|
1224 |
}
|
sl@0
|
1225 |
else // DisplayMode() == EColor16MU
|
sl@0
|
1226 |
{
|
sl@0
|
1227 |
if (aLength--)
|
sl@0
|
1228 |
{ // unrolled loop uses "Duff's Device"
|
sl@0
|
1229 |
const TUint32 alpha = 0xFF000000; //set all the alpha to 0xff
|
sl@0
|
1230 |
TInt iter = aLength / 8;
|
sl@0
|
1231 |
switch(aLength & 7)
|
sl@0
|
1232 |
{
|
sl@0
|
1233 |
case 7:
|
sl@0
|
1234 |
do {
|
sl@0
|
1235 |
*aDest++ = (*scanPtr32++) | alpha;
|
sl@0
|
1236 |
case 6:
|
sl@0
|
1237 |
*aDest++ = (*scanPtr32++) | alpha;
|
sl@0
|
1238 |
case 5:
|
sl@0
|
1239 |
*aDest++ = (*scanPtr32++) | alpha;
|
sl@0
|
1240 |
case 4:
|
sl@0
|
1241 |
*aDest++ = (*scanPtr32++) | alpha;
|
sl@0
|
1242 |
case 3:
|
sl@0
|
1243 |
*aDest++ = (*scanPtr32++) | alpha;
|
sl@0
|
1244 |
case 2:
|
sl@0
|
1245 |
*aDest++ = (*scanPtr32++) | alpha;
|
sl@0
|
1246 |
case 1:
|
sl@0
|
1247 |
*aDest++ = (*scanPtr32++) | alpha;
|
sl@0
|
1248 |
case 0:
|
sl@0
|
1249 |
*aDest++ = (*scanPtr32++) | alpha;
|
sl@0
|
1250 |
} while (iter-- > 0);
|
sl@0
|
1251 |
}
|
sl@0
|
1252 |
}
|
sl@0
|
1253 |
}
|
sl@0
|
1254 |
}
|
sl@0
|
1255 |
else
|
sl@0
|
1256 |
{
|
sl@0
|
1257 |
GetRgbPixelExMany(aX, aScanlinePtr, aDest, aLength);
|
sl@0
|
1258 |
}
|
sl@0
|
1259 |
}
|
sl@0
|
1260 |
|
sl@0
|
1261 |
void CBitwiseBitmap::GetRgbPixelExMany16M(TInt aX,TUint32* aScanlinePtr, TUint8* aDest,TInt aLength) const
|
sl@0
|
1262 |
{
|
sl@0
|
1263 |
union {
|
sl@0
|
1264 |
TUint8* scanPtr8;
|
sl@0
|
1265 |
TUint16* scanPtr16;
|
sl@0
|
1266 |
TUint32* scanPtr32;
|
sl@0
|
1267 |
};
|
sl@0
|
1268 |
union {
|
sl@0
|
1269 |
TUint8* destPtr8;
|
sl@0
|
1270 |
TUint32* destPtr32;
|
sl@0
|
1271 |
};
|
sl@0
|
1272 |
destPtr8 = aDest;
|
sl@0
|
1273 |
TUint32 rawData;
|
sl@0
|
1274 |
|
sl@0
|
1275 |
if (!aScanlinePtr)
|
sl@0
|
1276 |
{
|
sl@0
|
1277 |
const TUint32 zero = 0; // conveniently KRgbBlack is 0 in EColor16M mode
|
sl@0
|
1278 |
while (aLength)
|
sl@0
|
1279 |
{
|
sl@0
|
1280 |
if ((aLength < 4) || (3 & (TUint32)(destPtr8)))
|
sl@0
|
1281 |
{
|
sl@0
|
1282 |
aLength--;
|
sl@0
|
1283 |
*destPtr8++ = zero;
|
sl@0
|
1284 |
*destPtr8++ = zero;
|
sl@0
|
1285 |
*destPtr8++ = zero;
|
sl@0
|
1286 |
}
|
sl@0
|
1287 |
else
|
sl@0
|
1288 |
{ // dest is now TUint32 aligned - write 4 pixels into 3 TUint32s
|
sl@0
|
1289 |
aLength -= 4;
|
sl@0
|
1290 |
*destPtr32++ = zero;
|
sl@0
|
1291 |
*destPtr32++ = zero;
|
sl@0
|
1292 |
*destPtr32++ = zero;
|
sl@0
|
1293 |
}
|
sl@0
|
1294 |
}
|
sl@0
|
1295 |
return;
|
sl@0
|
1296 |
}
|
sl@0
|
1297 |
|
sl@0
|
1298 |
if (aX>=iHeader.iSizeInPixels.iWidth)
|
sl@0
|
1299 |
{
|
sl@0
|
1300 |
aX%=iHeader.iSizeInPixels.iWidth;
|
sl@0
|
1301 |
}
|
sl@0
|
1302 |
|
sl@0
|
1303 |
while (aLength)
|
sl@0
|
1304 |
{
|
sl@0
|
1305 |
// cached map to color
|
sl@0
|
1306 |
TUint32 color16M = 0;
|
sl@0
|
1307 |
TInt copyLength = iHeader.iSizeInPixels.iWidth - aX;
|
sl@0
|
1308 |
TUint32* scanPtr32 = aScanlinePtr + aX;
|
sl@0
|
1309 |
if (copyLength > aLength)
|
sl@0
|
1310 |
{
|
sl@0
|
1311 |
copyLength = aLength;
|
sl@0
|
1312 |
}
|
sl@0
|
1313 |
aLength -= copyLength;
|
sl@0
|
1314 |
|
sl@0
|
1315 |
if (iHeader.iColor)
|
sl@0
|
1316 |
{
|
sl@0
|
1317 |
switch(iHeader.iBitsPerPixel)
|
sl@0
|
1318 |
{
|
sl@0
|
1319 |
case 4:
|
sl@0
|
1320 |
{
|
sl@0
|
1321 |
scanPtr8 = reinterpret_cast<TUint8*>(aScanlinePtr);
|
sl@0
|
1322 |
TUint32 color16 = EFirstTime; // map source color: 16 color mode
|
sl@0
|
1323 |
do
|
sl@0
|
1324 |
{
|
sl@0
|
1325 |
rawData = (aX & 1) ? (scanPtr8[aX >> 1] >> 4) : (scanPtr8[aX >> 1] &0x0F);
|
sl@0
|
1326 |
if ((rawData != color16))
|
sl@0
|
1327 |
{ // first pixel or colour change
|
sl@0
|
1328 |
color16M = TRgb::Color16(rawData)._Color16M();
|
sl@0
|
1329 |
color16 = rawData;
|
sl@0
|
1330 |
}
|
sl@0
|
1331 |
*destPtr8++ = TUint8(color16M);
|
sl@0
|
1332 |
*destPtr8++ = TUint8(color16M >> 8);
|
sl@0
|
1333 |
*destPtr8++ = TUint8(color16M >> 16);
|
sl@0
|
1334 |
aX++;
|
sl@0
|
1335 |
}
|
sl@0
|
1336 |
while (--copyLength);
|
sl@0
|
1337 |
break;
|
sl@0
|
1338 |
}
|
sl@0
|
1339 |
case 8:
|
sl@0
|
1340 |
{
|
sl@0
|
1341 |
scanPtr8 = reinterpret_cast<TUint8*>(aScanlinePtr) + aX;
|
sl@0
|
1342 |
const TUint32* lookup = DynamicPalette::DefaultColor256Util()->iColorTable;
|
sl@0
|
1343 |
TUint32 color256 = EFirstTime; // map source color: 256 color
|
sl@0
|
1344 |
do
|
sl@0
|
1345 |
{
|
sl@0
|
1346 |
rawData = *scanPtr8++;
|
sl@0
|
1347 |
if ((rawData != color256))
|
sl@0
|
1348 |
{ // first pixel or colour change; so perform new mapping
|
sl@0
|
1349 |
color16M = lookup[rawData];
|
sl@0
|
1350 |
color256 = rawData;
|
sl@0
|
1351 |
}
|
sl@0
|
1352 |
// Note; byte order performs required bgr -> rgb conversion
|
sl@0
|
1353 |
*destPtr8++ = TUint8(color16M >> 16);
|
sl@0
|
1354 |
*destPtr8++ = TUint8(color16M >> 8);
|
sl@0
|
1355 |
*destPtr8++ = TUint8(color16M);
|
sl@0
|
1356 |
}
|
sl@0
|
1357 |
while (--copyLength);
|
sl@0
|
1358 |
break;
|
sl@0
|
1359 |
}
|
sl@0
|
1360 |
case 12:
|
sl@0
|
1361 |
{
|
sl@0
|
1362 |
scanPtr16 = reinterpret_cast<TUint16*>(aScanlinePtr) + aX;
|
sl@0
|
1363 |
TUint32 color4K = EFirstTime; // map source color: 4K color black => 16M color black
|
sl@0
|
1364 |
do
|
sl@0
|
1365 |
{
|
sl@0
|
1366 |
rawData = *scanPtr16++;
|
sl@0
|
1367 |
if ((rawData != color4K))
|
sl@0
|
1368 |
{ // first pixel or colour change
|
sl@0
|
1369 |
color16M = TRgb::_Color4K(rawData)._Color16M();
|
sl@0
|
1370 |
color4K = rawData;
|
sl@0
|
1371 |
}
|
sl@0
|
1372 |
*destPtr8++ = TUint8(color16M);
|
sl@0
|
1373 |
*destPtr8++ = TUint8(color16M >> 8);
|
sl@0
|
1374 |
*destPtr8++ = TUint8(color16M >> 16);
|
sl@0
|
1375 |
}
|
sl@0
|
1376 |
while (--copyLength);
|
sl@0
|
1377 |
break;
|
sl@0
|
1378 |
}
|
sl@0
|
1379 |
case 16:
|
sl@0
|
1380 |
{
|
sl@0
|
1381 |
scanPtr16 = reinterpret_cast<TUint16*>(aScanlinePtr) + aX;
|
sl@0
|
1382 |
const TUint16* lowAdd = Convert16to32bppLow();
|
sl@0
|
1383 |
const TUint32* highAdd = Convert16to32bppHigh();
|
sl@0
|
1384 |
TUint16 halfWord;
|
sl@0
|
1385 |
TUint32 color64K = EFirstTime; // 64K color black => 16M color black
|
sl@0
|
1386 |
color16M = 0;
|
sl@0
|
1387 |
do
|
sl@0
|
1388 |
{
|
sl@0
|
1389 |
halfWord = *scanPtr16++;
|
sl@0
|
1390 |
if ((halfWord != color64K))
|
sl@0
|
1391 |
{ // colour change
|
sl@0
|
1392 |
color16M = highAdd[halfWord >> 8] | lowAdd[halfWord & 0x00FF];
|
sl@0
|
1393 |
color64K = halfWord;
|
sl@0
|
1394 |
}
|
sl@0
|
1395 |
*destPtr8++ = TUint8(color16M);
|
sl@0
|
1396 |
*destPtr8++ = TUint8(color16M >> 8);
|
sl@0
|
1397 |
*destPtr8++ = TUint8(color16M >> 16);
|
sl@0
|
1398 |
}
|
sl@0
|
1399 |
while (--copyLength);
|
sl@0
|
1400 |
break;
|
sl@0
|
1401 |
}
|
sl@0
|
1402 |
case 24:
|
sl@0
|
1403 |
{
|
sl@0
|
1404 |
Mem::Copy(destPtr8, reinterpret_cast<TUint8*>(aScanlinePtr) + aX, copyLength * 3); // may not be aligned
|
sl@0
|
1405 |
destPtr8 += copyLength * 3;
|
sl@0
|
1406 |
break;
|
sl@0
|
1407 |
}
|
sl@0
|
1408 |
case 32:
|
sl@0
|
1409 |
{
|
sl@0
|
1410 |
scanPtr32 = aScanlinePtr + aX;
|
sl@0
|
1411 |
if (iSettings.CurrentDisplayMode() == EColor16MAP)
|
sl@0
|
1412 |
{
|
sl@0
|
1413 |
const TUint16* normTable = PtrTo16BitNormalisationTable();
|
sl@0
|
1414 |
do
|
sl@0
|
1415 |
{
|
sl@0
|
1416 |
// convert from EColor16MAP to EColor16MA first.
|
sl@0
|
1417 |
color16M = PMA2NonPMAPixel(*scanPtr32++, normTable);
|
sl@0
|
1418 |
*destPtr8++ = TUint8(color16M);
|
sl@0
|
1419 |
*destPtr8++ = TUint8(color16M >> 8);
|
sl@0
|
1420 |
*destPtr8++ = TUint8(color16M >> 16);
|
sl@0
|
1421 |
}
|
sl@0
|
1422 |
while (--copyLength);
|
sl@0
|
1423 |
}
|
sl@0
|
1424 |
else
|
sl@0
|
1425 |
{ // EColor16MA or EColor16MU, keep the RGB & throw away the top byte
|
sl@0
|
1426 |
// scanLineBytePointer format: ARGB - 0RGB as INT32 or BGR0 - 0RGB as INT32.
|
sl@0
|
1427 |
do
|
sl@0
|
1428 |
{
|
sl@0
|
1429 |
if ((copyLength < 4) || (3 & (TUint32)destPtr8))
|
sl@0
|
1430 |
{
|
sl@0
|
1431 |
color16M = *scanPtr32++;
|
sl@0
|
1432 |
--copyLength;
|
sl@0
|
1433 |
*destPtr8++ = TUint8(color16M);
|
sl@0
|
1434 |
*destPtr8++ = TUint8(color16M >> 8);
|
sl@0
|
1435 |
*destPtr8++ = TUint8(color16M >> 16);
|
sl@0
|
1436 |
}
|
sl@0
|
1437 |
else // dest is TUint32 aligned: copy 4 pixels into 3 TUint32's
|
sl@0
|
1438 |
{
|
sl@0
|
1439 |
color16M = (*scanPtr32++) & 0x00FFFFFF;
|
sl@0
|
1440 |
rawData = (*scanPtr32++) & 0x00FFFFFF;
|
sl@0
|
1441 |
copyLength -= 4;
|
sl@0
|
1442 |
*destPtr32++ = color16M | (rawData << 24);
|
sl@0
|
1443 |
color16M = (*scanPtr32++) & 0x00FFFFFF;
|
sl@0
|
1444 |
*destPtr32++ = (color16M << 16) | (rawData >> 8);
|
sl@0
|
1445 |
rawData = (*scanPtr32++) & 0x00FFFFFF;
|
sl@0
|
1446 |
*destPtr32++ = (color16M >> 16) | (rawData << 8);
|
sl@0
|
1447 |
}
|
sl@0
|
1448 |
}
|
sl@0
|
1449 |
while (copyLength);
|
sl@0
|
1450 |
}
|
sl@0
|
1451 |
break;
|
sl@0
|
1452 |
}
|
sl@0
|
1453 |
default:
|
sl@0
|
1454 |
break;
|
sl@0
|
1455 |
}
|
sl@0
|
1456 |
}
|
sl@0
|
1457 |
else
|
sl@0
|
1458 |
{ // !iHeader.iColor
|
sl@0
|
1459 |
if (iHeader.iBitsPerPixel == 8)
|
sl@0
|
1460 |
{
|
sl@0
|
1461 |
scanPtr8 = reinterpret_cast<TUint8*>(aScanlinePtr) + aX;
|
sl@0
|
1462 |
do
|
sl@0
|
1463 |
{
|
sl@0
|
1464 |
rawData = *scanPtr8++;
|
sl@0
|
1465 |
*destPtr8++ = (TUint8)rawData;
|
sl@0
|
1466 |
*destPtr8++ = (TUint8)rawData;
|
sl@0
|
1467 |
*destPtr8++ = (TUint8)rawData;
|
sl@0
|
1468 |
}
|
sl@0
|
1469 |
while (--copyLength);
|
sl@0
|
1470 |
}
|
sl@0
|
1471 |
else
|
sl@0
|
1472 |
{
|
sl@0
|
1473 |
do
|
sl@0
|
1474 |
{
|
sl@0
|
1475 |
rawData = GetGrayPixelEx(aX++,aScanlinePtr);
|
sl@0
|
1476 |
*destPtr8++ = (TUint8)rawData;
|
sl@0
|
1477 |
*destPtr8++ = (TUint8)rawData;
|
sl@0
|
1478 |
*destPtr8++ = (TUint8)rawData;
|
sl@0
|
1479 |
}
|
sl@0
|
1480 |
while (--copyLength);
|
sl@0
|
1481 |
}
|
sl@0
|
1482 |
}
|
sl@0
|
1483 |
aX = 0; // second copy, if any, comes from start of line
|
sl@0
|
1484 |
}
|
sl@0
|
1485 |
|
sl@0
|
1486 |
return;
|
sl@0
|
1487 |
}
|
sl@0
|
1488 |
|
sl@0
|
1489 |
void CBitwiseBitmap::GenerateLineFromCompressedEightBitData(TUint8* aDestBuffer, const TPoint& aPixel,TInt aLength, TUint32* aBase,TLineScanningPosition& aLineScanningPosition) const
|
sl@0
|
1490 |
{
|
sl@0
|
1491 |
const TInt bitmapWidth=iByteWidth;
|
sl@0
|
1492 |
const TInt pixelsPerByte=8/iHeader.iBitsPerPixel;
|
sl@0
|
1493 |
const TInt startPos=aPixel.iY*bitmapWidth+aPixel.iX/pixelsPerByte;
|
sl@0
|
1494 |
const TInt endPos=aPixel.iY*bitmapWidth+(aPixel.iX+aLength+pixelsPerByte-1)/pixelsPerByte;
|
sl@0
|
1495 |
const TInt byteLength=endPos-startPos;
|
sl@0
|
1496 |
TInt writes=byteLength;
|
sl@0
|
1497 |
TUint8* destPtr = ((TUint8*)aDestBuffer);
|
sl@0
|
1498 |
destPtr+=(aPixel.iX/pixelsPerByte);
|
sl@0
|
1499 |
if (aLineScanningPosition.iCursorPos>startPos)
|
sl@0
|
1500 |
{
|
sl@0
|
1501 |
aLineScanningPosition.iSrcDataPtr=(TUint8*)aBase;
|
sl@0
|
1502 |
aLineScanningPosition.iCursorPos=0;
|
sl@0
|
1503 |
}
|
sl@0
|
1504 |
TUint8* srcePtr = (TUint8*)aLineScanningPosition.iSrcDataPtr;
|
sl@0
|
1505 |
TInt8 count=*srcePtr;
|
sl@0
|
1506 |
TInt16 addition;
|
sl@0
|
1507 |
if (count<0)
|
sl@0
|
1508 |
addition=(TInt16) (-count);
|
sl@0
|
1509 |
else
|
sl@0
|
1510 |
addition=(TInt16) (count+1);
|
sl@0
|
1511 |
while (aLineScanningPosition.iCursorPos+addition<startPos)
|
sl@0
|
1512 |
{
|
sl@0
|
1513 |
aLineScanningPosition.iCursorPos+=addition;
|
sl@0
|
1514 |
if (count<0)
|
sl@0
|
1515 |
{
|
sl@0
|
1516 |
srcePtr+=(-count+1);
|
sl@0
|
1517 |
}
|
sl@0
|
1518 |
else
|
sl@0
|
1519 |
{
|
sl@0
|
1520 |
srcePtr+=2; // Just skip over value
|
sl@0
|
1521 |
}
|
sl@0
|
1522 |
count = *srcePtr;
|
sl@0
|
1523 |
if (count<0)
|
sl@0
|
1524 |
addition=(TInt16) (-count);
|
sl@0
|
1525 |
else
|
sl@0
|
1526 |
addition=(TInt16) (count+1);
|
sl@0
|
1527 |
}
|
sl@0
|
1528 |
// Then scan the line
|
sl@0
|
1529 |
count=0;
|
sl@0
|
1530 |
while (aLineScanningPosition.iCursorPos+count<startPos+byteLength)
|
sl@0
|
1531 |
{
|
sl@0
|
1532 |
TBool negativeCount=EFalse;
|
sl@0
|
1533 |
count=*srcePtr;
|
sl@0
|
1534 |
if (count<0)
|
sl@0
|
1535 |
{
|
sl@0
|
1536 |
negativeCount=ETrue;
|
sl@0
|
1537 |
count=(TInt8) ((-count)-1);
|
sl@0
|
1538 |
}
|
sl@0
|
1539 |
TUint8 value = *(srcePtr+1);
|
sl@0
|
1540 |
TInt distanceToTheLineEnd=startPos+byteLength-aLineScanningPosition.iCursorPos;
|
sl@0
|
1541 |
if (count<distanceToTheLineEnd)
|
sl@0
|
1542 |
{
|
sl@0
|
1543 |
if (!negativeCount)
|
sl@0
|
1544 |
{
|
sl@0
|
1545 |
srcePtr+=2;
|
sl@0
|
1546 |
}
|
sl@0
|
1547 |
else
|
sl@0
|
1548 |
{
|
sl@0
|
1549 |
srcePtr+=1;
|
sl@0
|
1550 |
}
|
sl@0
|
1551 |
TInt countPlusOne = (TInt)count + 1;
|
sl@0
|
1552 |
TInt start = Max(0,startPos-aLineScanningPosition.iCursorPos);
|
sl@0
|
1553 |
if (countPlusOne > start)
|
sl@0
|
1554 |
{
|
sl@0
|
1555 |
TInt length = Min(countPlusOne-start,writes);
|
sl@0
|
1556 |
writes -= countPlusOne-start;
|
sl@0
|
1557 |
if (length > 0)
|
sl@0
|
1558 |
{
|
sl@0
|
1559 |
/*Mem::Fill and Mem::Copy used in order to increase the performance*/
|
sl@0
|
1560 |
if (!negativeCount)
|
sl@0
|
1561 |
{
|
sl@0
|
1562 |
Mem::Fill(destPtr,length,value);
|
sl@0
|
1563 |
}
|
sl@0
|
1564 |
else
|
sl@0
|
1565 |
{
|
sl@0
|
1566 |
Mem::Copy(destPtr,srcePtr+start,length);
|
sl@0
|
1567 |
}
|
sl@0
|
1568 |
destPtr += length;
|
sl@0
|
1569 |
}
|
sl@0
|
1570 |
}
|
sl@0
|
1571 |
if (negativeCount)
|
sl@0
|
1572 |
{
|
sl@0
|
1573 |
srcePtr += countPlusOne;
|
sl@0
|
1574 |
}
|
sl@0
|
1575 |
aLineScanningPosition.iCursorPos += countPlusOne;
|
sl@0
|
1576 |
count=0;
|
sl@0
|
1577 |
}
|
sl@0
|
1578 |
else
|
sl@0
|
1579 |
{
|
sl@0
|
1580 |
TInt correction=1;
|
sl@0
|
1581 |
if (aLineScanningPosition.iCursorPos<startPos)
|
sl@0
|
1582 |
{
|
sl@0
|
1583 |
correction=startPos-aLineScanningPosition.iCursorPos+1;
|
sl@0
|
1584 |
}
|
sl@0
|
1585 |
TInt length = Min(byteLength,writes);
|
sl@0
|
1586 |
writes -= length;
|
sl@0
|
1587 |
/*Mem::Fill and Mem::Copy used in order to increase the performance*/
|
sl@0
|
1588 |
if (!negativeCount)
|
sl@0
|
1589 |
{
|
sl@0
|
1590 |
Mem::Fill(destPtr,length,value);
|
sl@0
|
1591 |
}
|
sl@0
|
1592 |
else
|
sl@0
|
1593 |
{
|
sl@0
|
1594 |
Mem::Copy(destPtr,srcePtr+correction,length);
|
sl@0
|
1595 |
}
|
sl@0
|
1596 |
destPtr += length;
|
sl@0
|
1597 |
}
|
sl@0
|
1598 |
}
|
sl@0
|
1599 |
aLineScanningPosition.iSrcDataPtr=(TUint8*) srcePtr;
|
sl@0
|
1600 |
}
|
sl@0
|
1601 |
|
sl@0
|
1602 |
void CBitwiseBitmap::GenerateLineFromCompressedTwelveBitData(TUint8* aDestBuffer, const TPoint& aPixel,TInt aLength, TUint32* aBase, TLineScanningPosition& aLineScanningPosition) const
|
sl@0
|
1603 |
{
|
sl@0
|
1604 |
const TInt bitmapWidth=iByteWidth>>1;
|
sl@0
|
1605 |
const TInt startPos=aPixel.iY*bitmapWidth+aPixel.iX;
|
sl@0
|
1606 |
TInt writes=aLength*2;
|
sl@0
|
1607 |
TUint16* destPtr = ((TUint16*)aDestBuffer);//+aPixel.iX;
|
sl@0
|
1608 |
destPtr+=aPixel.iX;
|
sl@0
|
1609 |
|
sl@0
|
1610 |
if(iPile)
|
sl@0
|
1611 |
{
|
sl@0
|
1612 |
::AdjustLineScanningPosition(aLineScanningPosition, aBase, bitmapWidth, startPos, iHeader.iBitmapSize - sizeof(SEpocBitmapHeader));
|
sl@0
|
1613 |
}
|
sl@0
|
1614 |
TUint16* srcePtr = (TUint16*)aLineScanningPosition.iSrcDataPtr;
|
sl@0
|
1615 |
|
sl@0
|
1616 |
// Fast find the correct position to start
|
sl@0
|
1617 |
TInt count=0;
|
sl@0
|
1618 |
if(::Abs(aLineScanningPosition.iCursorPos - startPos) > startPos)
|
sl@0
|
1619 |
{
|
sl@0
|
1620 |
srcePtr = (TUint16*)aBase;
|
sl@0
|
1621 |
aLineScanningPosition.iCursorPos = 0;
|
sl@0
|
1622 |
}
|
sl@0
|
1623 |
while (aLineScanningPosition.iCursorPos>startPos)
|
sl@0
|
1624 |
{
|
sl@0
|
1625 |
srcePtr--;
|
sl@0
|
1626 |
TUint16 value = *srcePtr;
|
sl@0
|
1627 |
count = value >> 12;
|
sl@0
|
1628 |
aLineScanningPosition.iCursorPos-=(count+1);
|
sl@0
|
1629 |
}
|
sl@0
|
1630 |
while (aLineScanningPosition.iCursorPos<startPos)
|
sl@0
|
1631 |
{
|
sl@0
|
1632 |
TUint16 value = *srcePtr++;
|
sl@0
|
1633 |
count = value >> 12;
|
sl@0
|
1634 |
aLineScanningPosition.iCursorPos+=count+1;
|
sl@0
|
1635 |
}
|
sl@0
|
1636 |
if (aLineScanningPosition.iCursorPos>startPos)
|
sl@0
|
1637 |
{
|
sl@0
|
1638 |
aLineScanningPosition.iCursorPos-=(count+1);
|
sl@0
|
1639 |
srcePtr--;
|
sl@0
|
1640 |
}
|
sl@0
|
1641 |
|
sl@0
|
1642 |
// Then scan the line
|
sl@0
|
1643 |
count=0;
|
sl@0
|
1644 |
while (aLineScanningPosition.iCursorPos+count<startPos+aLength)
|
sl@0
|
1645 |
{
|
sl@0
|
1646 |
TUint16 value = *srcePtr;
|
sl@0
|
1647 |
count = value >> 12;
|
sl@0
|
1648 |
value &= 0x0fff;
|
sl@0
|
1649 |
TInt distanceToTheLineEnd=startPos+aLength-aLineScanningPosition.iCursorPos;
|
sl@0
|
1650 |
if (count<distanceToTheLineEnd)
|
sl@0
|
1651 |
{
|
sl@0
|
1652 |
srcePtr++;
|
sl@0
|
1653 |
for (TInt ii=0 ; ii<=count ; ii++)
|
sl@0
|
1654 |
{
|
sl@0
|
1655 |
if (aLineScanningPosition.iCursorPos>=startPos)
|
sl@0
|
1656 |
{
|
sl@0
|
1657 |
if (writes>0)
|
sl@0
|
1658 |
*destPtr++ = value;
|
sl@0
|
1659 |
writes-=2;
|
sl@0
|
1660 |
}
|
sl@0
|
1661 |
aLineScanningPosition.iCursorPos++;
|
sl@0
|
1662 |
|
sl@0
|
1663 |
}
|
sl@0
|
1664 |
count=0;
|
sl@0
|
1665 |
}
|
sl@0
|
1666 |
else
|
sl@0
|
1667 |
{
|
sl@0
|
1668 |
for (TInt ii=0 ; ii<distanceToTheLineEnd ; ii++)
|
sl@0
|
1669 |
{
|
sl@0
|
1670 |
writes-=2;
|
sl@0
|
1671 |
*destPtr++ = value;
|
sl@0
|
1672 |
if (writes==0)
|
sl@0
|
1673 |
break;
|
sl@0
|
1674 |
}
|
sl@0
|
1675 |
}
|
sl@0
|
1676 |
}
|
sl@0
|
1677 |
aLineScanningPosition.iSrcDataPtr=(TUint8*) srcePtr;
|
sl@0
|
1678 |
}
|
sl@0
|
1679 |
|
sl@0
|
1680 |
/**
|
sl@0
|
1681 |
The method generates a line from compressed 16 bpp bitmap data.
|
sl@0
|
1682 |
@internalComponent
|
sl@0
|
1683 |
@see TScanLineDecompressor
|
sl@0
|
1684 |
*/
|
sl@0
|
1685 |
void CBitwiseBitmap::GenerateLineFromCompressedSixteenBitData(TUint8* aDestBuffer,
|
sl@0
|
1686 |
const TPoint& aPixel,
|
sl@0
|
1687 |
TInt aLength,
|
sl@0
|
1688 |
TUint32* aBase,
|
sl@0
|
1689 |
TLineScanningPosition& aLineScanningPosition) const
|
sl@0
|
1690 |
{
|
sl@0
|
1691 |
TInt comprDataBytes = iHeader.iBitmapSize - sizeof(SEpocBitmapHeader);
|
sl@0
|
1692 |
TScanLineDecompressor<E2bpp, E2bpp> decompr(aBase, comprDataBytes, iPile!=NULL);
|
sl@0
|
1693 |
decompr(aDestBuffer, aPixel, aLineScanningPosition, iByteWidth, iByteWidth, aLength);
|
sl@0
|
1694 |
}
|
sl@0
|
1695 |
|
sl@0
|
1696 |
/**
|
sl@0
|
1697 |
The method generates a line from compressed 24 bpp bitmap data.
|
sl@0
|
1698 |
@internalComponent
|
sl@0
|
1699 |
@see TScanLineDecompressor
|
sl@0
|
1700 |
*/
|
sl@0
|
1701 |
void CBitwiseBitmap::GenerateLineFromCompressed24BitData(
|
sl@0
|
1702 |
TUint8* aDestBuffer,
|
sl@0
|
1703 |
const TPoint& aPixel,
|
sl@0
|
1704 |
TInt aLength,
|
sl@0
|
1705 |
TUint32* aBase,
|
sl@0
|
1706 |
TLineScanningPosition& aLineScanningPosition) const
|
sl@0
|
1707 |
{
|
sl@0
|
1708 |
TInt comprDataBytes = iHeader.iBitmapSize - sizeof(SEpocBitmapHeader);
|
sl@0
|
1709 |
TScanLineDecompressor<E3bpp, E3bpp> decompr(aBase, comprDataBytes, iPile!=NULL);
|
sl@0
|
1710 |
decompr(aDestBuffer, aPixel, aLineScanningPosition, iByteWidth, iByteWidth, aLength);
|
sl@0
|
1711 |
}
|
sl@0
|
1712 |
|
sl@0
|
1713 |
/**
|
sl@0
|
1714 |
The method generates a line from compressed 24 bpp to 32 bpp bitmap data .
|
sl@0
|
1715 |
@internalComponent
|
sl@0
|
1716 |
@see TScanLineDecompressor
|
sl@0
|
1717 |
*/
|
sl@0
|
1718 |
void CBitwiseBitmap::GenerateLineFromCompressed32UBitData(
|
sl@0
|
1719 |
TUint8* aDestBuffer,
|
sl@0
|
1720 |
const TPoint& aPixel,
|
sl@0
|
1721 |
TInt aLength,
|
sl@0
|
1722 |
TUint32* aBase,
|
sl@0
|
1723 |
TLineScanningPosition& aLineScanningPosition) const
|
sl@0
|
1724 |
{
|
sl@0
|
1725 |
TInt comprDataBytes = iHeader.iBitmapSize - sizeof(SEpocBitmapHeader);
|
sl@0
|
1726 |
TScanLineDecompressor<E3bpp, E4bpp> decompr(aBase, comprDataBytes, iPile!=NULL);
|
sl@0
|
1727 |
|
sl@0
|
1728 |
TUint32 theByteWidthSrc = iHeader.iSizeInPixels.iWidth * 3;
|
sl@0
|
1729 |
decompr(aDestBuffer, aPixel, aLineScanningPosition, theByteWidthSrc, iByteWidth, aLength);
|
sl@0
|
1730 |
}
|
sl@0
|
1731 |
|
sl@0
|
1732 |
/**
|
sl@0
|
1733 |
The method generates a line from compressed 32 bpp to 32 bpp bitmap data .
|
sl@0
|
1734 |
@internalComponent
|
sl@0
|
1735 |
@see TScanLineDecompressor
|
sl@0
|
1736 |
*/
|
sl@0
|
1737 |
void CBitwiseBitmap::GenerateLineFromCompressed32ABitData(
|
sl@0
|
1738 |
TUint8* aDestBuffer,
|
sl@0
|
1739 |
const TPoint& aPixel,
|
sl@0
|
1740 |
TInt aLength,
|
sl@0
|
1741 |
TUint32* aBase,
|
sl@0
|
1742 |
TLineScanningPosition& aLineScanningPosition) const
|
sl@0
|
1743 |
{
|
sl@0
|
1744 |
TInt comprDataBytes = iHeader.iBitmapSize - sizeof(SEpocBitmapHeader);
|
sl@0
|
1745 |
TScanLineDecompressor<E4bpp, E4bpp> decompr(aBase, comprDataBytes, iPile!=NULL);
|
sl@0
|
1746 |
|
sl@0
|
1747 |
TUint32 theByteWidthSrc = iHeader.iSizeInPixels.iWidth * 4;
|
sl@0
|
1748 |
decompr(aDestBuffer, aPixel, aLineScanningPosition, theByteWidthSrc, iByteWidth, aLength);
|
sl@0
|
1749 |
}
|
sl@0
|
1750 |
|
sl@0
|
1751 |
TInt CBitwiseBitmap::DoGetScanLinePtr(TUint32*& aSlptr, TPoint& aPixel,TInt aLength,TUint32* aBase, TLineScanningPosition& aLineScanningPosition) const
|
sl@0
|
1752 |
{
|
sl@0
|
1753 |
TUint8* buf=NULL;
|
sl@0
|
1754 |
HBufC8* hBuf=aLineScanningPosition.iScanLineBuffer;
|
sl@0
|
1755 |
if (!hBuf)
|
sl@0
|
1756 |
{
|
sl@0
|
1757 |
RFbsSession* session=RFbsSession::GetSession();
|
sl@0
|
1758 |
if (session)
|
sl@0
|
1759 |
{
|
sl@0
|
1760 |
hBuf=session->GetScanLineBuffer();
|
sl@0
|
1761 |
}
|
sl@0
|
1762 |
else
|
sl@0
|
1763 |
{
|
sl@0
|
1764 |
aSlptr=NULL;
|
sl@0
|
1765 |
return KErrSessionClosed;
|
sl@0
|
1766 |
}
|
sl@0
|
1767 |
aLineScanningPosition.iScanLineBuffer=hBuf;
|
sl@0
|
1768 |
}
|
sl@0
|
1769 |
__ASSERT_ALWAYS(hBuf && hBuf->Des().MaxLength() >= iByteWidth, User::Invariant());
|
sl@0
|
1770 |
buf = const_cast<TUint8*>(hBuf->Ptr());
|
sl@0
|
1771 |
switch(iHeader.iCompression)
|
sl@0
|
1772 |
{
|
sl@0
|
1773 |
case ETwelveBitRLECompression:
|
sl@0
|
1774 |
GenerateLineFromCompressedTwelveBitData(buf, aPixel,aLength, aBase, aLineScanningPosition);
|
sl@0
|
1775 |
break;
|
sl@0
|
1776 |
case EByteRLECompression:
|
sl@0
|
1777 |
GenerateLineFromCompressedEightBitData(buf, aPixel,aLength, aBase, aLineScanningPosition);
|
sl@0
|
1778 |
break;
|
sl@0
|
1779 |
case ESixteenBitRLECompression:
|
sl@0
|
1780 |
GenerateLineFromCompressedSixteenBitData(buf, aPixel,aLength, aBase, aLineScanningPosition);
|
sl@0
|
1781 |
break;
|
sl@0
|
1782 |
case ETwentyFourBitRLECompression:
|
sl@0
|
1783 |
GenerateLineFromCompressed24BitData(buf, aPixel, aLength, aBase, aLineScanningPosition);
|
sl@0
|
1784 |
break;
|
sl@0
|
1785 |
case EThirtyTwoUBitRLECompression:
|
sl@0
|
1786 |
GenerateLineFromCompressed32UBitData(buf, aPixel, aLength, aBase, aLineScanningPosition);
|
sl@0
|
1787 |
break;
|
sl@0
|
1788 |
case EThirtyTwoABitRLECompression:
|
sl@0
|
1789 |
GenerateLineFromCompressed32ABitData(buf, aPixel, aLength, aBase, aLineScanningPosition);
|
sl@0
|
1790 |
break;
|
sl@0
|
1791 |
case EGenericPaletteCompression:
|
sl@0
|
1792 |
GenerateLineFromPaletteCompressedData(buf, aPixel, aLength, aBase, aLineScanningPosition);
|
sl@0
|
1793 |
break;
|
sl@0
|
1794 |
case EProprietaryCompression:
|
sl@0
|
1795 |
if (aLineScanningPosition.iRasterizer)
|
sl@0
|
1796 |
{
|
sl@0
|
1797 |
aSlptr = const_cast<TUint32*>(aLineScanningPosition.iRasterizer->ScanLine(Extra()->iSerialNumber, aPixel, aLength));
|
sl@0
|
1798 |
if (aSlptr)
|
sl@0
|
1799 |
{
|
sl@0
|
1800 |
return KErrNone;
|
sl@0
|
1801 |
}
|
sl@0
|
1802 |
}
|
sl@0
|
1803 |
WhiteFill(buf, iByteWidth, iSettings.CurrentDisplayMode());
|
sl@0
|
1804 |
break;
|
sl@0
|
1805 |
default:
|
sl@0
|
1806 |
{
|
sl@0
|
1807 |
__ASSERT_DEBUG(EFalse, ::Panic(EFbsBitmapInvalidCompression));
|
sl@0
|
1808 |
return KErrNotSupported;
|
sl@0
|
1809 |
}
|
sl@0
|
1810 |
}
|
sl@0
|
1811 |
aSlptr = (TUint32*) buf;
|
sl@0
|
1812 |
return KErrNone;
|
sl@0
|
1813 |
}
|
sl@0
|
1814 |
|
sl@0
|
1815 |
EXPORT_C void CBitwiseBitmap::GetScanLine(TDes8& aBuf,const TPoint& aPixel,TInt aLength,TBool aDither,const TPoint& aDitherOffset,TDisplayMode aDispMode,TUint32* aBase,TLineScanningPosition& aLineScanningPosition) const
|
sl@0
|
1816 |
{
|
sl@0
|
1817 |
if (!iDataOffset)
|
sl@0
|
1818 |
return;
|
sl@0
|
1819 |
|
sl@0
|
1820 |
TPoint pixel(aPixel);
|
sl@0
|
1821 |
TUint32* slptr=NULL;
|
sl@0
|
1822 |
GetScanLinePtr(slptr, aLength, pixel,aBase, aLineScanningPosition);
|
sl@0
|
1823 |
GetScanLine(slptr,aBuf,pixel,aLength,aDither,aDitherOffset,aDispMode);
|
sl@0
|
1824 |
}
|
sl@0
|
1825 |
|
sl@0
|
1826 |
EXPORT_C void CBitwiseBitmap::GetScanLine(TUint32*& aScanLinePtr, TDes8& aDestBuf,const TPoint& aPixel,TInt aLength,TBool aDither,
|
sl@0
|
1827 |
const TPoint& aDitherOffset,TDisplayMode aDestinationDispMode) const
|
sl@0
|
1828 |
{
|
sl@0
|
1829 |
if (!iDataOffset)
|
sl@0
|
1830 |
return;
|
sl@0
|
1831 |
TDisplayMode currentDisplayMode = iSettings.CurrentDisplayMode();
|
sl@0
|
1832 |
if (!aScanLinePtr) // if scanline pointer is null,
|
sl@0
|
1833 |
{
|
sl@0
|
1834 |
WhiteFill((TUint8*)aDestBuf.Ptr(),aDestBuf.MaxLength(),currentDisplayMode);
|
sl@0
|
1835 |
return;
|
sl@0
|
1836 |
}
|
sl@0
|
1837 |
TUint8* ptr = (TUint8*)aDestBuf.Ptr();
|
sl@0
|
1838 |
// if dest pointer is not aligned
|
sl@0
|
1839 |
if (!(TUint32(ptr)&3) && aDestinationDispMode == currentDisplayMode)
|
sl@0
|
1840 |
{
|
sl@0
|
1841 |
if (iHeader.iBitsPerPixel < 8)
|
sl@0
|
1842 |
GetScanLineExBits(aDestBuf,aPixel.iX,aLength,aScanLinePtr);
|
sl@0
|
1843 |
else
|
sl@0
|
1844 |
GetScanLineExBytes(aDestBuf,aPixel.iX,aLength,aScanLinePtr);
|
sl@0
|
1845 |
return;
|
sl@0
|
1846 |
}
|
sl@0
|
1847 |
//read the scanline in destination display format.
|
sl@0
|
1848 |
switch (aDestinationDispMode)
|
sl@0
|
1849 |
{
|
sl@0
|
1850 |
case EGray2:
|
sl@0
|
1851 |
GetScanLineGray2(aDestBuf,aPixel,aLength,aDither,aDitherOffset,aScanLinePtr);
|
sl@0
|
1852 |
break;
|
sl@0
|
1853 |
case EGray4:
|
sl@0
|
1854 |
GetScanLineGray4(aDestBuf,aPixel,aLength,aDither,aDitherOffset,aScanLinePtr);
|
sl@0
|
1855 |
break;
|
sl@0
|
1856 |
case EGray16:
|
sl@0
|
1857 |
GetScanLineGray16(aDestBuf,aPixel,aLength,aScanLinePtr);
|
sl@0
|
1858 |
break;
|
sl@0
|
1859 |
case EGray256:
|
sl@0
|
1860 |
GetScanLineGray256(aDestBuf,aPixel,aLength,aScanLinePtr);
|
sl@0
|
1861 |
break;
|
sl@0
|
1862 |
case EColor16:
|
sl@0
|
1863 |
GetScanLineColor16(aDestBuf,aPixel,aLength,aScanLinePtr);
|
sl@0
|
1864 |
break;
|
sl@0
|
1865 |
case EColor256:
|
sl@0
|
1866 |
GetScanLineColor256(aDestBuf,aPixel,aLength,aScanLinePtr);
|
sl@0
|
1867 |
break;
|
sl@0
|
1868 |
case EColor4K:
|
sl@0
|
1869 |
GetScanLineColor4K(aDestBuf,aPixel,aLength,aScanLinePtr);
|
sl@0
|
1870 |
break;
|
sl@0
|
1871 |
case EColor64K:
|
sl@0
|
1872 |
GetScanLineColor64K(aDestBuf,aPixel,aLength,aScanLinePtr);
|
sl@0
|
1873 |
break;
|
sl@0
|
1874 |
case EColor16M:
|
sl@0
|
1875 |
GetScanLineColor16M(aDestBuf,aPixel,aLength,aScanLinePtr);
|
sl@0
|
1876 |
break;
|
sl@0
|
1877 |
case ERgb:
|
sl@0
|
1878 |
GetScanLineColorRgb(aDestBuf,aPixel,aLength,aScanLinePtr);
|
sl@0
|
1879 |
break;
|
sl@0
|
1880 |
case EColor16MU:
|
sl@0
|
1881 |
GetScanLineColor16MU(aDestBuf,aPixel,aLength,aScanLinePtr);
|
sl@0
|
1882 |
break;
|
sl@0
|
1883 |
case EColor16MA:
|
sl@0
|
1884 |
GetScanLineColor16MA(aDestBuf,aPixel,aLength,aScanLinePtr);
|
sl@0
|
1885 |
break;
|
sl@0
|
1886 |
case EColor16MAP:
|
sl@0
|
1887 |
GetScanLineColor16MAP(aDestBuf,aPixel,aLength,aScanLinePtr);
|
sl@0
|
1888 |
break;
|
sl@0
|
1889 |
default:
|
sl@0
|
1890 |
aDestBuf.SetLength(0);
|
sl@0
|
1891 |
break;
|
sl@0
|
1892 |
};
|
sl@0
|
1893 |
}
|
sl@0
|
1894 |
|
sl@0
|
1895 |
EXPORT_C void CBitwiseBitmap::GetScanLine(TDes8& aBuf,const TPoint& aPixel,TInt aLength,TBool aDither,const TPoint& aDitherOffset,TDisplayMode aDispMode,TUint32* aBase) const
|
sl@0
|
1896 |
{
|
sl@0
|
1897 |
TLineScanningPosition pos(aBase);
|
sl@0
|
1898 |
TUint8* base = REINTERPRET_CAST(TUint8*,aBase);
|
sl@0
|
1899 |
const TCompressionBookMark* bookMarkPtr = NULL;
|
sl@0
|
1900 |
|
sl@0
|
1901 |
GetLineScanPos(pos, bookMarkPtr, base);
|
sl@0
|
1902 |
GetScanLine(aBuf,aPixel,aLength,aDither,aDitherOffset,aDispMode,aBase,pos);
|
sl@0
|
1903 |
UpdateBookMark(pos, const_cast<TCompressionBookMark*>(bookMarkPtr), base);
|
sl@0
|
1904 |
}
|
sl@0
|
1905 |
|
sl@0
|
1906 |
/**
|
sl@0
|
1907 |
Gets the bitmap’s vertical scanline starting at the specified x co-ordinate and using
|
sl@0
|
1908 |
the specified dither offset.
|
sl@0
|
1909 |
Note: The method works for uncompressed bitmaps only.
|
sl@0
|
1910 |
@param aBuf The buffer in which the vertical scanline will be returned.
|
sl@0
|
1911 |
@param aX The x co-ordinate of the vertical scanline to get.
|
sl@0
|
1912 |
@param aDitherOffset The dither offset of the bitmap.
|
sl@0
|
1913 |
@param aDispMode Format to be used to write the data to the buffer.
|
sl@0
|
1914 |
@param aBase The bitmap's data start address.
|
sl@0
|
1915 |
*/
|
sl@0
|
1916 |
EXPORT_C void CBitwiseBitmap::GetVerticalScanLine(TDes8& aBuf,TInt aX,TBool aDither,
|
sl@0
|
1917 |
const TPoint& aDitherOffset,
|
sl@0
|
1918 |
TDisplayMode aDispMode,
|
sl@0
|
1919 |
TUint32* aBase,
|
sl@0
|
1920 |
CFbsRasterizer* aRasterizer) const
|
sl@0
|
1921 |
{
|
sl@0
|
1922 |
if (iHeader.iCompression != ENoBitmapCompression && iHeader.iCompression != EProprietaryCompression)
|
sl@0
|
1923 |
{
|
sl@0
|
1924 |
__ASSERT_DEBUG(EFalse, ::Panic(EFbsBitmapInvalidCompression));
|
sl@0
|
1925 |
return; //not supported for compressed bitmaps
|
sl@0
|
1926 |
}
|
sl@0
|
1927 |
|
sl@0
|
1928 |
if (!iDataOffset)
|
sl@0
|
1929 |
{
|
sl@0
|
1930 |
return;
|
sl@0
|
1931 |
}
|
sl@0
|
1932 |
AdjustXCoord(aX);
|
sl@0
|
1933 |
TInt height=iHeader.iSizeInPixels.iHeight;
|
sl@0
|
1934 |
TUint32* slptr=aBase;
|
sl@0
|
1935 |
TUint8* ptr = (TUint8*)aBuf.Ptr();
|
sl@0
|
1936 |
*ptr=0;
|
sl@0
|
1937 |
const TInt wordwidth=iByteWidth>>2;
|
sl@0
|
1938 |
TInt y = 0;
|
sl@0
|
1939 |
|
sl@0
|
1940 |
if (iHeader.iCompression == EProprietaryCompression)
|
sl@0
|
1941 |
{
|
sl@0
|
1942 |
if (aRasterizer)
|
sl@0
|
1943 |
{
|
sl@0
|
1944 |
slptr = const_cast<TUint32*>(aRasterizer->ScanLine(Extra()->iSerialNumber, TPoint(aX,0), 1));
|
sl@0
|
1945 |
if (!slptr)
|
sl@0
|
1946 |
{
|
sl@0
|
1947 |
// wrong rasterizer for this extended bitmap - fill vertical scan line with white pixels
|
sl@0
|
1948 |
TInt bufLength = ByteWidth(height, aDispMode);
|
sl@0
|
1949 |
aBuf.SetLength(bufLength);
|
sl@0
|
1950 |
WhiteFill(ptr, bufLength, aDispMode);
|
sl@0
|
1951 |
return;
|
sl@0
|
1952 |
}
|
sl@0
|
1953 |
}
|
sl@0
|
1954 |
else
|
sl@0
|
1955 |
{
|
sl@0
|
1956 |
// no rasterizer - fill vertical scan line with white pixels
|
sl@0
|
1957 |
TInt bufLength = ByteWidth(height, aDispMode);
|
sl@0
|
1958 |
aBuf.SetLength(bufLength);
|
sl@0
|
1959 |
WhiteFill(ptr, bufLength, aDispMode);
|
sl@0
|
1960 |
return;
|
sl@0
|
1961 |
}
|
sl@0
|
1962 |
}
|
sl@0
|
1963 |
|
sl@0
|
1964 |
switch(aDispMode)
|
sl@0
|
1965 |
{
|
sl@0
|
1966 |
case EGray2:
|
sl@0
|
1967 |
{
|
sl@0
|
1968 |
TBool oddx=(aDitherOffset.iX&1);
|
sl@0
|
1969 |
TBool oddy=(aDitherOffset.iY&1);
|
sl@0
|
1970 |
height=Min(height,(TInt)((aBuf.MaxLength())<<3));
|
sl@0
|
1971 |
aBuf.SetLength((height+7)>>3);
|
sl@0
|
1972 |
TUint8 mask=1;
|
sl@0
|
1973 |
for(TInt count=0;count<height;count++)
|
sl@0
|
1974 |
{
|
sl@0
|
1975 |
if (!mask)
|
sl@0
|
1976 |
{
|
sl@0
|
1977 |
mask=1;
|
sl@0
|
1978 |
ptr++;
|
sl@0
|
1979 |
*ptr = 0;
|
sl@0
|
1980 |
}
|
sl@0
|
1981 |
if (HashTo1bpp(GetGrayPixelEx(aX,slptr),oddx,oddy))
|
sl@0
|
1982 |
*ptr|=mask;
|
sl@0
|
1983 |
oddx^=1;
|
sl@0
|
1984 |
mask<<=1;
|
sl@0
|
1985 |
slptr = aRasterizer ? const_cast<TUint32*>(aRasterizer->ScanLine(Extra()->iSerialNumber, TPoint(aX,++y), 1)) : slptr + wordwidth;
|
sl@0
|
1986 |
}
|
sl@0
|
1987 |
break;
|
sl@0
|
1988 |
}
|
sl@0
|
1989 |
case EGray4:
|
sl@0
|
1990 |
{
|
sl@0
|
1991 |
height=Min(height,(TInt)((aBuf.MaxLength())<<2));
|
sl@0
|
1992 |
aBuf.SetLength((height+3)>>2);
|
sl@0
|
1993 |
TInt shift=0;
|
sl@0
|
1994 |
TUint8 col=0;
|
sl@0
|
1995 |
if (iHeader.iBitsPerPixel==4 && aDither)
|
sl@0
|
1996 |
{
|
sl@0
|
1997 |
const TInt hasharray[4]={0,3,2,1};
|
sl@0
|
1998 |
TInt index=(aDitherOffset.iX&1)+((aDitherOffset.iY&1)<<1);
|
sl@0
|
1999 |
for(TInt count=0;count<height;count++,shift+=2)
|
sl@0
|
2000 |
{
|
sl@0
|
2001 |
if (shift==8)
|
sl@0
|
2002 |
{
|
sl@0
|
2003 |
shift=0;
|
sl@0
|
2004 |
ptr++;
|
sl@0
|
2005 |
*ptr=0;
|
sl@0
|
2006 |
}
|
sl@0
|
2007 |
col = TUint8(GetGrayPixelEx(aX,slptr) >> 4);
|
sl@0
|
2008 |
TInt value = col / 5;
|
sl@0
|
2009 |
col%=5;
|
sl@0
|
2010 |
if (col>2) col--;
|
sl@0
|
2011 |
if (hasharray[index]<TInt(col))
|
sl@0
|
2012 |
value++;
|
sl@0
|
2013 |
value<<=shift;
|
sl@0
|
2014 |
*ptr|=value;
|
sl@0
|
2015 |
index^=1;
|
sl@0
|
2016 |
slptr = aRasterizer ? const_cast<TUint32*>(aRasterizer->ScanLine(Extra()->iSerialNumber, TPoint(aX,++y), 1)) : slptr + wordwidth;
|
sl@0
|
2017 |
}
|
sl@0
|
2018 |
}
|
sl@0
|
2019 |
else
|
sl@0
|
2020 |
{
|
sl@0
|
2021 |
for(TInt count=0;count<height;count++,shift+=2)
|
sl@0
|
2022 |
{
|
sl@0
|
2023 |
if (shift==8)
|
sl@0
|
2024 |
{
|
sl@0
|
2025 |
shift=0;
|
sl@0
|
2026 |
ptr++;
|
sl@0
|
2027 |
*ptr=0;
|
sl@0
|
2028 |
}
|
sl@0
|
2029 |
col = TUint8(GetGrayPixelEx(aX,slptr) >> 6);
|
sl@0
|
2030 |
col<<=shift;
|
sl@0
|
2031 |
*ptr|=col;
|
sl@0
|
2032 |
slptr = aRasterizer ? const_cast<TUint32*>(aRasterizer->ScanLine(Extra()->iSerialNumber, TPoint(aX,++y), 1)) : slptr + wordwidth;
|
sl@0
|
2033 |
}
|
sl@0
|
2034 |
}
|
sl@0
|
2035 |
break;
|
sl@0
|
2036 |
}
|
sl@0
|
2037 |
case EGray16:
|
sl@0
|
2038 |
{
|
sl@0
|
2039 |
height = Min(height,aBuf.MaxLength()<<1);
|
sl@0
|
2040 |
aBuf.SetLength((height+1)>>1);
|
sl@0
|
2041 |
TUint8* ptrLimit = ptr + aBuf.Length() - 1;
|
sl@0
|
2042 |
while (ptr < ptrLimit)
|
sl@0
|
2043 |
{
|
sl@0
|
2044 |
*ptr = TUint8(GetGrayPixelEx(aX,slptr) >> 4);
|
sl@0
|
2045 |
slptr = aRasterizer ? const_cast<TUint32*>(aRasterizer->ScanLine(Extra()->iSerialNumber, TPoint(aX,++y), 1)) : slptr + wordwidth;
|
sl@0
|
2046 |
*ptr++ |= GetGrayPixelEx(aX,slptr) & 0xf0;
|
sl@0
|
2047 |
slptr = aRasterizer ? const_cast<TUint32*>(aRasterizer->ScanLine(Extra()->iSerialNumber, TPoint(aX,++y), 1)) : slptr + wordwidth;
|
sl@0
|
2048 |
}
|
sl@0
|
2049 |
// Fill last byte.
|
sl@0
|
2050 |
// If height is odd, upper 4 bits are zeroed.
|
sl@0
|
2051 |
*ptr = TUint8(GetGrayPixelEx(aX,slptr) >> 4);
|
sl@0
|
2052 |
if (!(height & 1))
|
sl@0
|
2053 |
{
|
sl@0
|
2054 |
// Only fill upper 4 bits of last byte if height is even.
|
sl@0
|
2055 |
slptr = aRasterizer ? const_cast<TUint32*>(aRasterizer->ScanLine(Extra()->iSerialNumber, TPoint(aX,++y), 1)) : slptr + wordwidth;
|
sl@0
|
2056 |
*ptr++ = GetGrayPixelEx(aX,slptr) & 0xf0;
|
sl@0
|
2057 |
}
|
sl@0
|
2058 |
break;
|
sl@0
|
2059 |
}
|
sl@0
|
2060 |
case EColor16:
|
sl@0
|
2061 |
{
|
sl@0
|
2062 |
height=Min(height,aBuf.MaxLength()<<1);
|
sl@0
|
2063 |
aBuf.SetLength((height+1)>>1);
|
sl@0
|
2064 |
TUint8* ptrLimit = ptr + aBuf.Length() - 1;
|
sl@0
|
2065 |
|
sl@0
|
2066 |
while (ptr < ptrLimit)
|
sl@0
|
2067 |
{
|
sl@0
|
2068 |
*ptr = TUint8(GetRgbPixelEx(aX,slptr).Color16());
|
sl@0
|
2069 |
slptr = aRasterizer ? const_cast<TUint32*>(aRasterizer->ScanLine(Extra()->iSerialNumber, TPoint(aX,++y), 1)) : slptr + wordwidth;
|
sl@0
|
2070 |
*ptr++ |= GetRgbPixelEx(aX,slptr).Color16() << 4;
|
sl@0
|
2071 |
slptr = aRasterizer ? const_cast<TUint32*>(aRasterizer->ScanLine(Extra()->iSerialNumber, TPoint(aX,++y), 1)) : slptr + wordwidth;
|
sl@0
|
2072 |
}
|
sl@0
|
2073 |
// Fill last byte.
|
sl@0
|
2074 |
// If height is odd, upper 4 bits are zeroed.
|
sl@0
|
2075 |
*ptr = TUint8(GetRgbPixelEx(aX,slptr).Color16());
|
sl@0
|
2076 |
if (!(height & 1))
|
sl@0
|
2077 |
{
|
sl@0
|
2078 |
// Only fill upper 4 bits of last byte if height is even.
|
sl@0
|
2079 |
slptr = aRasterizer ? const_cast<TUint32*>(aRasterizer->ScanLine(Extra()->iSerialNumber, TPoint(aX,++y), 1)) : slptr + wordwidth;
|
sl@0
|
2080 |
*ptr++ = GetRgbPixelEx(aX,slptr).Color16() << 4;
|
sl@0
|
2081 |
}
|
sl@0
|
2082 |
break;
|
sl@0
|
2083 |
}
|
sl@0
|
2084 |
case EGray256:
|
sl@0
|
2085 |
{
|
sl@0
|
2086 |
height = Min(height,aBuf.MaxLength());
|
sl@0
|
2087 |
aBuf.SetLength(height);
|
sl@0
|
2088 |
TUint8* ptrLimit = ptr + height;
|
sl@0
|
2089 |
while (ptr < ptrLimit)
|
sl@0
|
2090 |
{
|
sl@0
|
2091 |
*ptr++ = GetGrayPixelEx(aX,slptr);
|
sl@0
|
2092 |
slptr = aRasterizer ? const_cast<TUint32*>(aRasterizer->ScanLine(Extra()->iSerialNumber, TPoint(aX,++y), 1)) : slptr + wordwidth;
|
sl@0
|
2093 |
}
|
sl@0
|
2094 |
break;
|
sl@0
|
2095 |
}
|
sl@0
|
2096 |
case EColor256:
|
sl@0
|
2097 |
{
|
sl@0
|
2098 |
height = Min(height,aBuf.MaxLength());
|
sl@0
|
2099 |
aBuf.SetLength(height);
|
sl@0
|
2100 |
TUint8* ptrLimit = ptr + height;
|
sl@0
|
2101 |
|
sl@0
|
2102 |
while (ptr < ptrLimit)
|
sl@0
|
2103 |
{
|
sl@0
|
2104 |
*ptr++ = TUint8(GetRgbPixelEx(aX,slptr).Color256());
|
sl@0
|
2105 |
slptr = aRasterizer ? const_cast<TUint32*>(aRasterizer->ScanLine(Extra()->iSerialNumber, TPoint(aX,++y), 1)) : slptr + wordwidth;
|
sl@0
|
2106 |
}
|
sl@0
|
2107 |
break;
|
sl@0
|
2108 |
}
|
sl@0
|
2109 |
case EColor4K:
|
sl@0
|
2110 |
{
|
sl@0
|
2111 |
height = Min(height,aBuf.MaxLength() >> 1);
|
sl@0
|
2112 |
aBuf.SetLength(height << 1);
|
sl@0
|
2113 |
TUint16* dwordPtr = (TUint16*)ptr;
|
sl@0
|
2114 |
TUint16* ptrLimit = dwordPtr + height;
|
sl@0
|
2115 |
|
sl@0
|
2116 |
while (dwordPtr < ptrLimit)
|
sl@0
|
2117 |
{
|
sl@0
|
2118 |
*dwordPtr++ = TUint16(GetRgbPixelEx(aX,slptr)._Color4K());
|
sl@0
|
2119 |
slptr = aRasterizer ? const_cast<TUint32*>(aRasterizer->ScanLine(Extra()->iSerialNumber, TPoint(aX,++y), 1)) : slptr + wordwidth;
|
sl@0
|
2120 |
}
|
sl@0
|
2121 |
break;
|
sl@0
|
2122 |
}
|
sl@0
|
2123 |
case EColor64K:
|
sl@0
|
2124 |
{
|
sl@0
|
2125 |
height = Min(height,aBuf.MaxLength() >> 1);
|
sl@0
|
2126 |
aBuf.SetLength(height << 1);
|
sl@0
|
2127 |
TUint16* dwordPtr = (TUint16*)ptr;
|
sl@0
|
2128 |
TUint16* ptrLimit = dwordPtr + height;
|
sl@0
|
2129 |
|
sl@0
|
2130 |
while (dwordPtr < ptrLimit)
|
sl@0
|
2131 |
{
|
sl@0
|
2132 |
*dwordPtr++ = TUint16(GetRgbPixelEx(aX,slptr)._Color64K());
|
sl@0
|
2133 |
slptr = aRasterizer ? const_cast<TUint32*>(aRasterizer->ScanLine(Extra()->iSerialNumber, TPoint(aX,++y), 1)) : slptr + wordwidth;
|
sl@0
|
2134 |
}
|
sl@0
|
2135 |
break;
|
sl@0
|
2136 |
}
|
sl@0
|
2137 |
case EColor16M:
|
sl@0
|
2138 |
{
|
sl@0
|
2139 |
height = Min(height,aBuf.MaxLength() / 3);
|
sl@0
|
2140 |
aBuf.SetLength(height * 3);
|
sl@0
|
2141 |
const TUint8* ptrLimit = ptr + (height * 3);
|
sl@0
|
2142 |
|
sl@0
|
2143 |
while (ptr < ptrLimit)
|
sl@0
|
2144 |
{
|
sl@0
|
2145 |
const TInt color16M = GetRgbPixelEx(aX,slptr)._Color16M();
|
sl@0
|
2146 |
*ptr++ = TUint8(color16M);
|
sl@0
|
2147 |
*ptr++ = TUint8(color16M >> 8);
|
sl@0
|
2148 |
*ptr++ = TUint8(color16M >> 16);
|
sl@0
|
2149 |
slptr = aRasterizer ? const_cast<TUint32*>(aRasterizer->ScanLine(Extra()->iSerialNumber, TPoint(aX,++y), 1)) : slptr + wordwidth;
|
sl@0
|
2150 |
}
|
sl@0
|
2151 |
break;
|
sl@0
|
2152 |
}
|
sl@0
|
2153 |
case ERgb:
|
sl@0
|
2154 |
case EColor16MU:
|
sl@0
|
2155 |
case EColor16MA:
|
sl@0
|
2156 |
case EColor16MAP:
|
sl@0
|
2157 |
{
|
sl@0
|
2158 |
height = Min(height,aBuf.MaxLength() >> 2);
|
sl@0
|
2159 |
aBuf.SetLength(height << 2);
|
sl@0
|
2160 |
TUint32* pixelPtr = (TUint32*)ptr;
|
sl@0
|
2161 |
TUint32* pixelPtrLimit = pixelPtr + height;
|
sl@0
|
2162 |
|
sl@0
|
2163 |
if (aDispMode == EColor16MAP && iSettings.CurrentDisplayMode() == EColor16MA)
|
sl@0
|
2164 |
while (pixelPtr < pixelPtrLimit)
|
sl@0
|
2165 |
{
|
sl@0
|
2166 |
*pixelPtr++ = NonPMA2PMAPixel(*(slptr + aX));
|
sl@0
|
2167 |
slptr = aRasterizer ? const_cast<TUint32*>(aRasterizer->ScanLine(Extra()->iSerialNumber, TPoint(aX,++y), 1)) : slptr + wordwidth;
|
sl@0
|
2168 |
}
|
sl@0
|
2169 |
else if (aDispMode == EColor16MAP && iSettings.CurrentDisplayMode() == EColor16MAP)
|
sl@0
|
2170 |
while (pixelPtr < pixelPtrLimit)
|
sl@0
|
2171 |
{
|
sl@0
|
2172 |
*pixelPtr++ = *(slptr + aX);
|
sl@0
|
2173 |
slptr = aRasterizer ? const_cast<TUint32*>(aRasterizer->ScanLine(Extra()->iSerialNumber, TPoint(aX,++y), 1)) : slptr + wordwidth;
|
sl@0
|
2174 |
}
|
sl@0
|
2175 |
else if (aDispMode == EColor16MU)
|
sl@0
|
2176 |
while (pixelPtr < pixelPtrLimit)
|
sl@0
|
2177 |
{
|
sl@0
|
2178 |
*pixelPtr++ = GetRgbPixelEx(aX, slptr).Internal() | 0xFF000000;
|
sl@0
|
2179 |
slptr = aRasterizer ? const_cast<TUint32*>(aRasterizer->ScanLine(Extra()->iSerialNumber, TPoint(aX,++y), 1)) : slptr + wordwidth;
|
sl@0
|
2180 |
}
|
sl@0
|
2181 |
else
|
sl@0
|
2182 |
while (pixelPtr < pixelPtrLimit)
|
sl@0
|
2183 |
{
|
sl@0
|
2184 |
*pixelPtr++ = GetRgbPixelEx(aX, slptr).Internal();
|
sl@0
|
2185 |
slptr = aRasterizer ? const_cast<TUint32*>(aRasterizer->ScanLine(Extra()->iSerialNumber, TPoint(aX,++y), 1)) : slptr + wordwidth;
|
sl@0
|
2186 |
}
|
sl@0
|
2187 |
break;
|
sl@0
|
2188 |
}
|
sl@0
|
2189 |
default:
|
sl@0
|
2190 |
aBuf.SetLength(0);
|
sl@0
|
2191 |
}
|
sl@0
|
2192 |
}
|
sl@0
|
2193 |
|
sl@0
|
2194 |
EXPORT_C void CBitwiseBitmap::StretchScanLine(TDes8& aBuf,const TPoint& aPixel,TInt aClipStrchX,TInt aClipStrchLen,TInt aStretchLength,TInt aOrgX,TInt aOrgLen,const TPoint& aDitherOffset,TDisplayMode aDispMode,TUint32* aBase) const
|
sl@0
|
2195 |
{
|
sl@0
|
2196 |
TLineScanningPosition pos(aBase);
|
sl@0
|
2197 |
StretchScanLine(aBuf,aPixel,aClipStrchX,aClipStrchLen,aStretchLength,aOrgX,aOrgLen,aDitherOffset,aDispMode,aBase,pos);
|
sl@0
|
2198 |
}
|
sl@0
|
2199 |
|
sl@0
|
2200 |
EXPORT_C void CBitwiseBitmap::StretchScanLine(TDes8& aBuf,const TPoint& aPixel,TInt aClipStrchX,TInt aClipStrchLen,TInt aStretchLength,TInt aOrgX,TInt aOrgLen,const TPoint& aDitherOffset,TDisplayMode aDispMode,TUint32* aBase, TLineScanningPosition& aLineScanningPosition) const
|
sl@0
|
2201 |
{
|
sl@0
|
2202 |
if (!iDataOffset)
|
sl@0
|
2203 |
return;
|
sl@0
|
2204 |
TInt x=aPixel.iX,y=aPixel.iY;
|
sl@0
|
2205 |
if (x>=iHeader.iSizeInPixels.iWidth || x<-iHeader.iSizeInPixels.iWidth)
|
sl@0
|
2206 |
x%=iHeader.iSizeInPixels.iWidth;
|
sl@0
|
2207 |
if (y>=iHeader.iSizeInPixels.iHeight || y<-iHeader.iSizeInPixels.iHeight)
|
sl@0
|
2208 |
y%=iHeader.iSizeInPixels.iHeight;
|
sl@0
|
2209 |
if (x<0) x+=iHeader.iSizeInPixels.iWidth;
|
sl@0
|
2210 |
if (y<0) y+=iHeader.iSizeInPixels.iHeight;
|
sl@0
|
2211 |
if (aStretchLength<aOrgLen)
|
sl@0
|
2212 |
DoCompressScanLine(aBuf,x,y,aClipStrchX,aClipStrchLen,aStretchLength,aOrgX,aOrgLen,aDitherOffset,aDispMode,aBase,aLineScanningPosition);
|
sl@0
|
2213 |
else
|
sl@0
|
2214 |
DoStretchScanLine(aBuf,x,y,aClipStrchX,aClipStrchLen,aStretchLength,aOrgX,aOrgLen,aDitherOffset,aDispMode,aBase,aLineScanningPosition);
|
sl@0
|
2215 |
}
|
sl@0
|
2216 |
|
sl@0
|
2217 |
EXPORT_C TUint32* CBitwiseBitmap::ScanLineAddress(TUint32* aBase,TUint aY) const
|
sl@0
|
2218 |
{
|
sl@0
|
2219 |
if (aY == 0 || iDataOffset == 0)
|
sl@0
|
2220 |
return aBase;
|
sl@0
|
2221 |
|
sl@0
|
2222 |
if (aY >= TUint(iHeader.iSizeInPixels.iHeight))
|
sl@0
|
2223 |
aY %= iHeader.iSizeInPixels.iHeight;
|
sl@0
|
2224 |
|
sl@0
|
2225 |
return aBase + (aY * (DataStride() >> 2));
|
sl@0
|
2226 |
}
|
sl@0
|
2227 |
|
sl@0
|
2228 |
TUint32* CBitwiseBitmap::DataAddress() const
|
sl@0
|
2229 |
{
|
sl@0
|
2230 |
if (iDataOffset==0) return(NULL);
|
sl@0
|
2231 |
|
sl@0
|
2232 |
if(iUid.iUid==KCBitwiseBitmapHardwareUid.iUid) // RHardwareBitmap
|
sl@0
|
2233 |
{
|
sl@0
|
2234 |
RHardwareBitmap hwb(iDataOffset); // iDataOffset = handle for hardware bitmap
|
sl@0
|
2235 |
TAcceleratedBitmapInfo info;
|
sl@0
|
2236 |
const TInt ret = hwb.GetInfo(info);
|
sl@0
|
2237 |
return ret!=KErrNone ? NULL : (reinterpret_cast<TUint32*>(info.iAddress));
|
sl@0
|
2238 |
}
|
sl@0
|
2239 |
|
sl@0
|
2240 |
if (iHeap == NULL)
|
sl@0
|
2241 |
return(reinterpret_cast<TUint32*>((TUint8*)this+iDataOffset));
|
sl@0
|
2242 |
return(reinterpret_cast<TUint32*>(iPile->ChunkBase()+iDataOffset));
|
sl@0
|
2243 |
}
|
sl@0
|
2244 |
|
sl@0
|
2245 |
EXPORT_C TInt CBitwiseBitmap::DataStride() const
|
sl@0
|
2246 |
{
|
sl@0
|
2247 |
return iByteWidth;
|
sl@0
|
2248 |
}
|
sl@0
|
2249 |
|
sl@0
|
2250 |
TUint32 CBitwiseBitmap::HashTo2bpp(TUint32 aGray256,TInt aDitherIndex) const
|
sl@0
|
2251 |
{
|
sl@0
|
2252 |
static const TUint hasharray[4]={0,3,2,1};
|
sl@0
|
2253 |
TInt gray16 = aGray256 >> 4;
|
sl@0
|
2254 |
TInt gray4 = gray16 + 1;
|
sl@0
|
2255 |
gray4 += gray4 << 1;
|
sl@0
|
2256 |
gray4 >>= 4;
|
sl@0
|
2257 |
gray16 %= 5;
|
sl@0
|
2258 |
if (gray16 > 2)
|
sl@0
|
2259 |
gray16--;
|
sl@0
|
2260 |
if (hasharray[aDitherIndex] < TUint(gray16))
|
sl@0
|
2261 |
gray4++;
|
sl@0
|
2262 |
return gray4;
|
sl@0
|
2263 |
}
|
sl@0
|
2264 |
|
sl@0
|
2265 |
TUint32 CBitwiseBitmap::HashTo1bpp(TUint32 aGray256,TBool aOddX,TBool aOddY) const
|
sl@0
|
2266 |
{
|
sl@0
|
2267 |
TUint32 aGray4 = aGray256 >> 6;
|
sl@0
|
2268 |
switch(aGray4)
|
sl@0
|
2269 |
{
|
sl@0
|
2270 |
case 3:
|
sl@0
|
2271 |
return 1;
|
sl@0
|
2272 |
case 2:
|
sl@0
|
2273 |
{
|
sl@0
|
2274 |
if (aOddX && aOddY)
|
sl@0
|
2275 |
return 0;
|
sl@0
|
2276 |
else
|
sl@0
|
2277 |
return 1;
|
sl@0
|
2278 |
}
|
sl@0
|
2279 |
case 1:
|
sl@0
|
2280 |
{
|
sl@0
|
2281 |
if ((aOddX && aOddY) || (!aOddX && !aOddY))
|
sl@0
|
2282 |
return 1;
|
sl@0
|
2283 |
}
|
sl@0
|
2284 |
//coverity [fallthrough]
|
sl@0
|
2285 |
default:
|
sl@0
|
2286 |
return 0;
|
sl@0
|
2287 |
}
|
sl@0
|
2288 |
}
|
sl@0
|
2289 |
|
sl@0
|
2290 |
/**
|
sl@0
|
2291 |
Tests whether or not the bitmap is monochrome.
|
sl@0
|
2292 |
Monochrome bitmaps have a display-mode of 1 bit-per-pixel.
|
sl@0
|
2293 |
Note: The method works for uncompressed bitmaps only.
|
sl@0
|
2294 |
@param aBase Bitmap's data base address
|
sl@0
|
2295 |
@return True if the bitmap is monochrome; false otherwise.
|
sl@0
|
2296 |
*/
|
sl@0
|
2297 |
EXPORT_C TBool CBitwiseBitmap::IsMonochrome(TUint32* aBase) const
|
sl@0
|
2298 |
{
|
sl@0
|
2299 |
if (IsCompressed())
|
sl@0
|
2300 |
{
|
sl@0
|
2301 |
__ASSERT_DEBUG(EFalse, ::Panic(EFbsBitmapInvalidCompression));
|
sl@0
|
2302 |
return EFalse; // Not currently supported for compressed bitmaps
|
sl@0
|
2303 |
}
|
sl@0
|
2304 |
|
sl@0
|
2305 |
if (!iDataOffset)
|
sl@0
|
2306 |
{
|
sl@0
|
2307 |
return(EFalse);
|
sl@0
|
2308 |
}
|
sl@0
|
2309 |
TInt bitwidth=iHeader.iBitsPerPixel*iHeader.iSizeInPixels.iWidth;
|
sl@0
|
2310 |
if(iHeader.iBitsPerPixel == 12)
|
sl@0
|
2311 |
{//EColor4K mode - 1 pixel occupies 16 bits, most significant 4 bits are not used.
|
sl@0
|
2312 |
bitwidth=16*iHeader.iSizeInPixels.iWidth;
|
sl@0
|
2313 |
}
|
sl@0
|
2314 |
TInt wordwidth=bitwidth>>5;
|
sl@0
|
2315 |
TInt endshift=32-(bitwidth&0x1f);
|
sl@0
|
2316 |
TInt endmask=0;
|
sl@0
|
2317 |
if (endshift<32) endmask=0xffffffff>>endshift;
|
sl@0
|
2318 |
TUint32* bitptr=aBase;
|
sl@0
|
2319 |
//In a loop from first to last scanline:
|
sl@0
|
2320 |
//Check each pixel - is it monochrome or not (pixel color must be BLACK or WHITE).
|
sl@0
|
2321 |
//Get next scanline.
|
sl@0
|
2322 |
TUint32* endbitptr=bitptr+wordwidth;
|
sl@0
|
2323 |
for(TInt row=0;row<iHeader.iSizeInPixels.iHeight;row++)
|
sl@0
|
2324 |
{
|
sl@0
|
2325 |
if(iHeader.iBitsPerPixel == 24)
|
sl@0
|
2326 |
{//1 word contains 1 pixel and 8 bits from the next pixel.
|
sl@0
|
2327 |
for(TInt x=0;x<iHeader.iSizeInPixels.iWidth;x++)
|
sl@0
|
2328 |
{
|
sl@0
|
2329 |
TUint8* scanLine = reinterpret_cast <TUint8*> (bitptr) + x * 3;
|
sl@0
|
2330 |
TUint color16M = *scanLine++;
|
sl@0
|
2331 |
color16M |= (*scanLine++) << 8;
|
sl@0
|
2332 |
color16M |= (*scanLine++) << 16;
|
sl@0
|
2333 |
if (IsWordMonochrome(color16M)==EFalse)
|
sl@0
|
2334 |
return(EFalse);
|
sl@0
|
2335 |
}
|
sl@0
|
2336 |
}
|
sl@0
|
2337 |
else
|
sl@0
|
2338 |
{
|
sl@0
|
2339 |
TUint32* tmpbitptr=bitptr;
|
sl@0
|
2340 |
while(tmpbitptr<endbitptr)
|
sl@0
|
2341 |
if (IsWordMonochrome(*tmpbitptr++)==EFalse)
|
sl@0
|
2342 |
return(EFalse);
|
sl@0
|
2343 |
if (endmask)
|
sl@0
|
2344 |
if (IsWordMonochrome(*endbitptr&endmask)==EFalse)
|
sl@0
|
2345 |
return(EFalse);
|
sl@0
|
2346 |
}
|
sl@0
|
2347 |
bitptr+=wordwidth;
|
sl@0
|
2348 |
endbitptr+=wordwidth;
|
sl@0
|
2349 |
}
|
sl@0
|
2350 |
return(ETrue);
|
sl@0
|
2351 |
}
|
sl@0
|
2352 |
|
sl@0
|
2353 |
TBool CBitwiseBitmap::IsWordMonochrome(TUint32 aWord) const
|
sl@0
|
2354 |
{
|
sl@0
|
2355 |
TDisplayMode displayMode = iSettings.CurrentDisplayMode();
|
sl@0
|
2356 |
switch(displayMode)
|
sl@0
|
2357 |
{
|
sl@0
|
2358 |
case EGray2:
|
sl@0
|
2359 |
return ETrue;
|
sl@0
|
2360 |
case EGray4:
|
sl@0
|
2361 |
{
|
sl@0
|
2362 |
TUint32 lowerbits=aWord&0x55555555;
|
sl@0
|
2363 |
TUint32 upperbits=(aWord>>1)&0x55555555;
|
sl@0
|
2364 |
if (lowerbits^upperbits)
|
sl@0
|
2365 |
return EFalse;
|
sl@0
|
2366 |
return ETrue;
|
sl@0
|
2367 |
}
|
sl@0
|
2368 |
case EGray16:
|
sl@0
|
2369 |
case EColor16:
|
sl@0
|
2370 |
{
|
sl@0
|
2371 |
if (aWord==0xffffffff || aWord==0)
|
sl@0
|
2372 |
return ETrue;
|
sl@0
|
2373 |
for(TInt count=0;count<8;count++)
|
sl@0
|
2374 |
{
|
sl@0
|
2375 |
TUint32 nibble=aWord&0xf;
|
sl@0
|
2376 |
if ((nibble>0) && (nibble<0xf))
|
sl@0
|
2377 |
return EFalse;
|
sl@0
|
2378 |
aWord>>=4;
|
sl@0
|
2379 |
}
|
sl@0
|
2380 |
return ETrue;
|
sl@0
|
2381 |
}
|
sl@0
|
2382 |
case EGray256:
|
sl@0
|
2383 |
case EColor256:
|
sl@0
|
2384 |
{
|
sl@0
|
2385 |
TUint8* bytePtr = (TUint8*)&aWord;
|
sl@0
|
2386 |
TUint8* bytePtrLimit = bytePtr + 4;
|
sl@0
|
2387 |
while (bytePtr < bytePtrLimit)
|
sl@0
|
2388 |
{
|
sl@0
|
2389 |
if (*bytePtr && (*bytePtr != 0xff))
|
sl@0
|
2390 |
return EFalse;
|
sl@0
|
2391 |
bytePtr++;
|
sl@0
|
2392 |
}
|
sl@0
|
2393 |
return ETrue;
|
sl@0
|
2394 |
}
|
sl@0
|
2395 |
case EColor4K:
|
sl@0
|
2396 |
{
|
sl@0
|
2397 |
aWord &= 0x0fff0fff;
|
sl@0
|
2398 |
TUint16 color4K = (TUint16)aWord;
|
sl@0
|
2399 |
if (color4K && (color4K != 0xfff))
|
sl@0
|
2400 |
return EFalse;
|
sl@0
|
2401 |
color4K = (TUint16)(aWord >> 16);
|
sl@0
|
2402 |
if (color4K && (color4K != 0xfff))
|
sl@0
|
2403 |
return EFalse;
|
sl@0
|
2404 |
return ETrue;
|
sl@0
|
2405 |
}
|
sl@0
|
2406 |
case EColor64K:
|
sl@0
|
2407 |
{
|
sl@0
|
2408 |
TUint16 color64K = (TUint16)aWord;
|
sl@0
|
2409 |
if (color64K && (color64K != 0xffff))
|
sl@0
|
2410 |
return EFalse;
|
sl@0
|
2411 |
color64K = (TUint16)(aWord >> 16);
|
sl@0
|
2412 |
if (color64K && (color64K != 0xffff))
|
sl@0
|
2413 |
return EFalse;
|
sl@0
|
2414 |
return ETrue;
|
sl@0
|
2415 |
}
|
sl@0
|
2416 |
case EColor16M:
|
sl@0
|
2417 |
case EColor16MU:
|
sl@0
|
2418 |
case EColor16MA:
|
sl@0
|
2419 |
case EColor16MAP:
|
sl@0
|
2420 |
{
|
sl@0
|
2421 |
aWord &= 0xffffff;
|
sl@0
|
2422 |
if (aWord && (aWord != 0x00ffffff))
|
sl@0
|
2423 |
return EFalse;
|
sl@0
|
2424 |
return ETrue;
|
sl@0
|
2425 |
}
|
sl@0
|
2426 |
default:
|
sl@0
|
2427 |
return EFalse;
|
sl@0
|
2428 |
}
|
sl@0
|
2429 |
}
|
sl@0
|
2430 |
|
sl@0
|
2431 |
EXPORT_C TBool CBitwiseBitmap::IsLargeBitmap() const
|
sl@0
|
2432 |
{
|
sl@0
|
2433 |
if(iUid.iUid==KCBitwiseBitmapHardwareUid.iUid)
|
sl@0
|
2434 |
return EFalse; // RHardwareBitmap
|
sl@0
|
2435 |
|
sl@0
|
2436 |
if (iHeap==NULL) return(EFalse); // rom bitmap
|
sl@0
|
2437 |
|
sl@0
|
2438 |
// Consider all RAM bitmaps large, so that legacy applications always
|
sl@0
|
2439 |
// call LockHeap()/UnlockHeap() around DataAddress(), which allows
|
sl@0
|
2440 |
// better handling of hardware acceleration caches, if present.
|
sl@0
|
2441 |
// Note that, since the large bitmap threshold has always been in the
|
sl@0
|
2442 |
// documentation, it is not guaranteed that legacy applications call
|
sl@0
|
2443 |
// this function to determine whether a bitmap is large or not.
|
sl@0
|
2444 |
return ETrue;
|
sl@0
|
2445 |
}
|
sl@0
|
2446 |
|
sl@0
|
2447 |
EXPORT_C TInt CBitwiseBitmap::HardwareBitmapHandle() const
|
sl@0
|
2448 |
{
|
sl@0
|
2449 |
if(iUid.iUid!=KCBitwiseBitmapHardwareUid.iUid)
|
sl@0
|
2450 |
return 0;
|
sl@0
|
2451 |
return iDataOffset; // Really the handle
|
sl@0
|
2452 |
}
|
sl@0
|
2453 |
|
sl@0
|
2454 |
/**
|
sl@0
|
2455 |
Set a flag to indicate that this bitmap has to be compressed in the FBServer background thread
|
sl@0
|
2456 |
@return KErrNone if possible to compress, KErrAlreadyExists if already compressed
|
sl@0
|
2457 |
*/
|
sl@0
|
2458 |
EXPORT_C TInt CBitwiseBitmap::CheckBackgroundCompressData()
|
sl@0
|
2459 |
{
|
sl@0
|
2460 |
switch (iHeader.iBitsPerPixel)
|
sl@0
|
2461 |
{
|
sl@0
|
2462 |
case 1:
|
sl@0
|
2463 |
case 2:
|
sl@0
|
2464 |
case 4:
|
sl@0
|
2465 |
case 8:
|
sl@0
|
2466 |
case 12:
|
sl@0
|
2467 |
case 16:
|
sl@0
|
2468 |
case 24:
|
sl@0
|
2469 |
case 32:
|
sl@0
|
2470 |
break;
|
sl@0
|
2471 |
default:
|
sl@0
|
2472 |
return KErrNotSupported;
|
sl@0
|
2473 |
}
|
sl@0
|
2474 |
// Return if the bitmap is already compressed.
|
sl@0
|
2475 |
if (iHeader.iCompression != ENoBitmapCompression)
|
sl@0
|
2476 |
return KErrAlreadyExists;
|
sl@0
|
2477 |
|
sl@0
|
2478 |
// See if it's possible to allocate memory.
|
sl@0
|
2479 |
if (iHeap == NULL || iPile == NULL)
|
sl@0
|
2480 |
return KErrNoMemory;
|
sl@0
|
2481 |
|
sl@0
|
2482 |
return KErrNone;
|
sl@0
|
2483 |
}
|
sl@0
|
2484 |
|
sl@0
|
2485 |
|
sl@0
|
2486 |
|
sl@0
|
2487 |
/**
|
sl@0
|
2488 |
Compress a bitmap if possible.
|
sl@0
|
2489 |
If the bitmap is already compressed, or if compression yields no decrease in size, do nothing,
|
sl@0
|
2490 |
but return success (KErrNone).
|
sl@0
|
2491 |
@return KErrNone if successful, otherwise a system wide error code.
|
sl@0
|
2492 |
*/
|
sl@0
|
2493 |
EXPORT_C TInt CBitwiseBitmap::CompressData()
|
sl@0
|
2494 |
{
|
sl@0
|
2495 |
switch (iHeader.iBitsPerPixel)
|
sl@0
|
2496 |
{
|
sl@0
|
2497 |
case 1:
|
sl@0
|
2498 |
case 2:
|
sl@0
|
2499 |
case 4:
|
sl@0
|
2500 |
case 8:
|
sl@0
|
2501 |
case 12:
|
sl@0
|
2502 |
case 16:
|
sl@0
|
2503 |
case 24:
|
sl@0
|
2504 |
case 32:
|
sl@0
|
2505 |
break;
|
sl@0
|
2506 |
default:
|
sl@0
|
2507 |
return KErrNone;
|
sl@0
|
2508 |
}
|
sl@0
|
2509 |
// Return if the bitmap is already compressed.
|
sl@0
|
2510 |
if (iHeader.iCompression != ENoBitmapCompression)
|
sl@0
|
2511 |
return KErrNone;
|
sl@0
|
2512 |
|
sl@0
|
2513 |
// Find out if compression is possible and return if not.
|
sl@0
|
2514 |
TUint8* data = (TUint8*)DataAddress();
|
sl@0
|
2515 |
TInt data_bytes = iHeader.iBitmapSize - iHeader.iStructSize;
|
sl@0
|
2516 |
|
sl@0
|
2517 |
//Update the padding bitmap data to speedup the RLE Compression
|
sl@0
|
2518 |
UpdatePaddingData((TUint32*)data);
|
sl@0
|
2519 |
|
sl@0
|
2520 |
TInt compressed_data_bytes = (SizeOfDataCompressed((TUint8*)data,data_bytes) + 3) / 4 * 4;
|
sl@0
|
2521 |
|
sl@0
|
2522 |
if (!data || !data_bytes)
|
sl@0
|
2523 |
return KErrNone;
|
sl@0
|
2524 |
|
sl@0
|
2525 |
// if (compressed_data_bytes >= data_bytes)
|
sl@0
|
2526 |
// It now attempts to check whether compression is worth while. (speed vs space saving)
|
sl@0
|
2527 |
__ASSERT_DEBUG(KCompressionThreshold >=0 && KCompressionThreshold <= 256, ::Panic(EFbsInvalidCompressionThreshold));
|
sl@0
|
2528 |
if (compressed_data_bytes >= (data_bytes * KCompressionThreshold) >> 8)
|
sl@0
|
2529 |
return KErrNone;
|
sl@0
|
2530 |
|
sl@0
|
2531 |
// See if it's possible to allocate memory.
|
sl@0
|
2532 |
if (iHeap == NULL || iPile == NULL)
|
sl@0
|
2533 |
return KErrNoMemory;
|
sl@0
|
2534 |
|
sl@0
|
2535 |
// Create a buffer to receive the compressed data.
|
sl@0
|
2536 |
TUint8* compressed_data = NULL;
|
sl@0
|
2537 |
TInt allocSize = compressed_data_bytes;
|
sl@0
|
2538 |
TBool bookMark = EFalse;
|
sl@0
|
2539 |
if (allocSize > KCompressionBookMarkThreshold)
|
sl@0
|
2540 |
{
|
sl@0
|
2541 |
allocSize += sizeof(TCompressionBookMark) + 4;
|
sl@0
|
2542 |
bookMark = ETrue;
|
sl@0
|
2543 |
}
|
sl@0
|
2544 |
compressed_data = iPile->Alloc(allocSize);
|
sl@0
|
2545 |
if (!compressed_data)
|
sl@0
|
2546 |
return KErrNoMemory;
|
sl@0
|
2547 |
if (bookMark)
|
sl@0
|
2548 |
{
|
sl@0
|
2549 |
TCompressionBookMark emptyBookmark;
|
sl@0
|
2550 |
*((TCompressionBookMark*)(compressed_data + compressed_data_bytes + 4)) = emptyBookmark;
|
sl@0
|
2551 |
}
|
sl@0
|
2552 |
iDataOffset = compressed_data - iPile->ChunkBase();
|
sl@0
|
2553 |
iHeader.iBitmapSize = sizeof(SEpocBitmapHeader) + compressed_data_bytes;
|
sl@0
|
2554 |
iHeader.iCompression = CompressionType(iHeader.iBitsPerPixel, iHeader.iColor);
|
sl@0
|
2555 |
|
sl@0
|
2556 |
// Compress the data into a stream over the new buffer.
|
sl@0
|
2557 |
TPtr8 output_ptr(compressed_data,compressed_data_bytes);
|
sl@0
|
2558 |
RDesWriteStream output_stream(output_ptr);
|
sl@0
|
2559 |
// This function cannot leave - but trap it anyway till I am fully satisfied about that.
|
sl@0
|
2560 |
TRAP_IGNORE(DoExternalizeDataCompressedL(output_stream,data,data_bytes));
|
sl@0
|
2561 |
output_stream.Close();
|
sl@0
|
2562 |
|
sl@0
|
2563 |
iIsCompressedInRAM = ETrue;
|
sl@0
|
2564 |
// Free the old data.
|
sl@0
|
2565 |
iPile->Free(data);
|
sl@0
|
2566 |
|
sl@0
|
2567 |
return KErrNone;
|
sl@0
|
2568 |
}
|
sl@0
|
2569 |
|
sl@0
|
2570 |
/**
|
sl@0
|
2571 |
Compress a bitmap if possible.
|
sl@0
|
2572 |
If the bitmap is already compressed, or if compression yields no decrease in size, do nothing,
|
sl@0
|
2573 |
but return success (KErrNone).
|
sl@0
|
2574 |
@publishedAll
|
sl@0
|
2575 |
@param aScheme The type of bitmap file compression.
|
sl@0
|
2576 |
@return KErrNone if successful, otherwise a system wide error code.
|
sl@0
|
2577 |
*/
|
sl@0
|
2578 |
EXPORT_C TInt CBitwiseBitmap::CompressData(TBitmapfileCompressionScheme aScheme)
|
sl@0
|
2579 |
{
|
sl@0
|
2580 |
TInt err=KErrNone;
|
sl@0
|
2581 |
if (aScheme==ERLECompression)
|
sl@0
|
2582 |
err=CompressData();
|
sl@0
|
2583 |
else if (aScheme==EPaletteCompression)
|
sl@0
|
2584 |
err=PaletteCompress();
|
sl@0
|
2585 |
else if (aScheme==EPaletteCompressionWithRLEFallback)
|
sl@0
|
2586 |
{
|
sl@0
|
2587 |
err=PaletteCompress();
|
sl@0
|
2588 |
if (err==KErrNotSupported)
|
sl@0
|
2589 |
err=CompressData();
|
sl@0
|
2590 |
}
|
sl@0
|
2591 |
|
sl@0
|
2592 |
return err;
|
sl@0
|
2593 |
}
|
sl@0
|
2594 |
|
sl@0
|
2595 |
EXPORT_C TBool CBitwiseBitmap::IsCompressedInRAM() const
|
sl@0
|
2596 |
{
|
sl@0
|
2597 |
return iIsCompressedInRAM;
|
sl@0
|
2598 |
}
|
sl@0
|
2599 |
|
sl@0
|
2600 |
/**
|
sl@0
|
2601 |
Check for a bitmap if it is compressed in some manner.
|
sl@0
|
2602 |
@return ETrue if successful Or EFalse if unsuccessful
|
sl@0
|
2603 |
@internalComponent
|
sl@0
|
2604 |
*/
|
sl@0
|
2605 |
EXPORT_C TBool CBitwiseBitmap::IsCompressed() const
|
sl@0
|
2606 |
{
|
sl@0
|
2607 |
return ( iHeader.iCompression != ENoBitmapCompression );
|
sl@0
|
2608 |
}
|
sl@0
|
2609 |
|
sl@0
|
2610 |
EXPORT_C void CBitwiseBitmap::SetCompressionBookmark(TLineScanningPosition& aLineScanningPosition, TUint32* aBase, const CFbsBitmap* /*aFbsBitmap*/)
|
sl@0
|
2611 |
{
|
sl@0
|
2612 |
if (iPile == NULL) return; //Rom bitmap
|
sl@0
|
2613 |
if (!iIsCompressedInRAM || (iHeader.iCompression == EGenericPaletteCompression))
|
sl@0
|
2614 |
{
|
sl@0
|
2615 |
return;
|
sl@0
|
2616 |
}
|
sl@0
|
2617 |
|
sl@0
|
2618 |
TInt compressed_data_bytes=iHeader.iBitmapSize-sizeof(SEpocBitmapHeader);
|
sl@0
|
2619 |
if (compressed_data_bytes>KCompressionBookMarkThreshold)
|
sl@0
|
2620 |
{
|
sl@0
|
2621 |
TUint8* compressed_data=(TUint8*) aBase;
|
sl@0
|
2622 |
TInt alignedSize=(compressed_data_bytes+3)/4*4;
|
sl@0
|
2623 |
compressed_data+=alignedSize+4;
|
sl@0
|
2624 |
TCompressionBookMark* bookMark=(TCompressionBookMark*) (compressed_data);
|
sl@0
|
2625 |
if (!bookMark->IsCheckSumOk())
|
sl@0
|
2626 |
return;
|
sl@0
|
2627 |
bookMark->iCursorPos=aLineScanningPosition.iCursorPos;
|
sl@0
|
2628 |
bookMark->iSrcDataOffset=aLineScanningPosition.iSrcDataPtr-((TUint8*)aBase);
|
sl@0
|
2629 |
bookMark->CalculateCheckSum();
|
sl@0
|
2630 |
}
|
sl@0
|
2631 |
}
|
sl@0
|
2632 |
/**
|
sl@0
|
2633 |
Optimises the bitmap data for Run Length Encoding by changing unused
|
sl@0
|
2634 |
pixel data.
|
sl@0
|
2635 |
This function calculates number of padding pixels per scanline and
|
sl@0
|
2636 |
replaces their color with the color of the scanline's final pixel.
|
sl@0
|
2637 |
*/
|
sl@0
|
2638 |
void CBitwiseBitmap::UpdatePaddingData(TUint32* aData)
|
sl@0
|
2639 |
{
|
sl@0
|
2640 |
TInt stride=DataStride();
|
sl@0
|
2641 |
//Do the process only for 8bpp and 16bpp.
|
sl@0
|
2642 |
switch (iHeader.iBitsPerPixel)
|
sl@0
|
2643 |
{
|
sl@0
|
2644 |
case 8:
|
sl@0
|
2645 |
{
|
sl@0
|
2646 |
const TInt nPadding = stride - iHeader.iSizeInPixels.iWidth;
|
sl@0
|
2647 |
if(nPadding!=1 && nPadding!=2 && nPadding!=3)
|
sl@0
|
2648 |
return;
|
sl@0
|
2649 |
TUint8* srcePtr = reinterpret_cast<TUint8*>(aData);
|
sl@0
|
2650 |
//Find the last byte value in each scanline and assign in padding bytes
|
sl@0
|
2651 |
TUint8* lastPixelPtr = srcePtr + iHeader.iSizeInPixels.iWidth - 1;
|
sl@0
|
2652 |
for(TInt row=0; row<iHeader.iSizeInPixels.iHeight; row++)
|
sl@0
|
2653 |
{
|
sl@0
|
2654 |
TUint8 pixel = *lastPixelPtr;
|
sl@0
|
2655 |
TUint8* padPtr = lastPixelPtr + 1;
|
sl@0
|
2656 |
switch(nPadding)
|
sl@0
|
2657 |
{
|
sl@0
|
2658 |
case 3: *padPtr++ = pixel;
|
sl@0
|
2659 |
case 2: *padPtr++ = pixel;
|
sl@0
|
2660 |
case 1: *padPtr++ = pixel;
|
sl@0
|
2661 |
}
|
sl@0
|
2662 |
lastPixelPtr += stride;
|
sl@0
|
2663 |
}
|
sl@0
|
2664 |
break;
|
sl@0
|
2665 |
}
|
sl@0
|
2666 |
case 16:
|
sl@0
|
2667 |
{
|
sl@0
|
2668 |
TUint16* srcePtr = reinterpret_cast<TUint16*>(aData);
|
sl@0
|
2669 |
stride>>=1;
|
sl@0
|
2670 |
const TInt nPadding = stride - iHeader.iSizeInPixels.iWidth;
|
sl@0
|
2671 |
if(nPadding!=1)
|
sl@0
|
2672 |
return;
|
sl@0
|
2673 |
//Find the last byte value in each scanline and assign in padding bytes
|
sl@0
|
2674 |
TUint16* lastPixelPtr = srcePtr + iHeader.iSizeInPixels.iWidth - 1;
|
sl@0
|
2675 |
for(TInt row=0; row<iHeader.iSizeInPixels.iHeight; row++)
|
sl@0
|
2676 |
{
|
sl@0
|
2677 |
TUint16 pixel = *lastPixelPtr;
|
sl@0
|
2678 |
TUint16* padPtr = lastPixelPtr + 1;
|
sl@0
|
2679 |
*padPtr++ = pixel;
|
sl@0
|
2680 |
lastPixelPtr += stride;
|
sl@0
|
2681 |
}
|
sl@0
|
2682 |
break;
|
sl@0
|
2683 |
}
|
sl@0
|
2684 |
default:
|
sl@0
|
2685 |
return;
|
sl@0
|
2686 |
}
|
sl@0
|
2687 |
}
|
sl@0
|
2688 |
|
sl@0
|
2689 |
void CBitwiseBitmap::WhiteFill(TUint8* aData,TInt aDataSize,TDisplayMode aDispMode)
|
sl@0
|
2690 |
{
|
sl@0
|
2691 |
if(aData)
|
sl@0
|
2692 |
{
|
sl@0
|
2693 |
if (aDispMode != EColor4K)
|
sl@0
|
2694 |
Mem::Fill(aData,aDataSize,0xff);
|
sl@0
|
2695 |
else
|
sl@0
|
2696 |
{
|
sl@0
|
2697 |
TUint16* pixelPtr = (TUint16*)aData;
|
sl@0
|
2698 |
TUint16* pixelPtrLimit = pixelPtr + (aDataSize / 2);
|
sl@0
|
2699 |
while (pixelPtr < pixelPtrLimit)
|
sl@0
|
2700 |
*pixelPtr++ = 0x0fff;
|
sl@0
|
2701 |
}
|
sl@0
|
2702 |
}
|
sl@0
|
2703 |
}
|
sl@0
|
2704 |
|
sl@0
|
2705 |
TInt CBitwiseBitmap::ByteWidth(TInt aPixelWidth,TDisplayMode aDispMode)
|
sl@0
|
2706 |
{
|
sl@0
|
2707 |
TInt wordWidth = 0;
|
sl@0
|
2708 |
|
sl@0
|
2709 |
switch (aDispMode)
|
sl@0
|
2710 |
{
|
sl@0
|
2711 |
case EGray2:
|
sl@0
|
2712 |
wordWidth = (aPixelWidth + 31) / 32;
|
sl@0
|
2713 |
break;
|
sl@0
|
2714 |
case EGray4:
|
sl@0
|
2715 |
wordWidth = (aPixelWidth + 15) / 16;
|
sl@0
|
2716 |
break;
|
sl@0
|
2717 |
case EGray16:
|
sl@0
|
2718 |
case EColor16:
|
sl@0
|
2719 |
wordWidth = (aPixelWidth + 7) / 8;
|
sl@0
|
2720 |
break;
|
sl@0
|
2721 |
case EGray256:
|
sl@0
|
2722 |
case EColor256:
|
sl@0
|
2723 |
wordWidth = (aPixelWidth + 3) / 4;
|
sl@0
|
2724 |
break;
|
sl@0
|
2725 |
case EColor4K:
|
sl@0
|
2726 |
case EColor64K:
|
sl@0
|
2727 |
wordWidth = (aPixelWidth + 1) / 2;
|
sl@0
|
2728 |
break;
|
sl@0
|
2729 |
case EColor16M:
|
sl@0
|
2730 |
wordWidth = (((aPixelWidth * 3) + 11) / 12) * 3;
|
sl@0
|
2731 |
break;
|
sl@0
|
2732 |
case EColor16MU:
|
sl@0
|
2733 |
case ERgb:
|
sl@0
|
2734 |
case EColor16MA:
|
sl@0
|
2735 |
case EColor16MAP:
|
sl@0
|
2736 |
wordWidth = aPixelWidth;
|
sl@0
|
2737 |
break;
|
sl@0
|
2738 |
default:
|
sl@0
|
2739 |
::Panic(EFbsBitmapInvalidMode);
|
sl@0
|
2740 |
}
|
sl@0
|
2741 |
|
sl@0
|
2742 |
return wordWidth * 4;
|
sl@0
|
2743 |
}
|
sl@0
|
2744 |
|
sl@0
|
2745 |
TInt CBitwiseBitmap::Bpp(TDisplayMode aDispMode)
|
sl@0
|
2746 |
{
|
sl@0
|
2747 |
switch (aDispMode)
|
sl@0
|
2748 |
{
|
sl@0
|
2749 |
case EGray2:
|
sl@0
|
2750 |
return 1;
|
sl@0
|
2751 |
case EGray4:
|
sl@0
|
2752 |
return 2;
|
sl@0
|
2753 |
case EGray16:
|
sl@0
|
2754 |
case EColor16:
|
sl@0
|
2755 |
return 4;
|
sl@0
|
2756 |
case EGray256:
|
sl@0
|
2757 |
case EColor256:
|
sl@0
|
2758 |
return 8;
|
sl@0
|
2759 |
case EColor4K:
|
sl@0
|
2760 |
return 12;
|
sl@0
|
2761 |
case EColor64K:
|
sl@0
|
2762 |
return 16;
|
sl@0
|
2763 |
case EColor16M:
|
sl@0
|
2764 |
return 24;
|
sl@0
|
2765 |
case EColor16MU:
|
sl@0
|
2766 |
case EColor16MA:
|
sl@0
|
2767 |
case EColor16MAP:
|
sl@0
|
2768 |
return 32;
|
sl@0
|
2769 |
default:
|
sl@0
|
2770 |
::Panic(EFbsBitmapInvalidMode);
|
sl@0
|
2771 |
}
|
sl@0
|
2772 |
|
sl@0
|
2773 |
return 0;
|
sl@0
|
2774 |
}
|
sl@0
|
2775 |
|
sl@0
|
2776 |
TInt CBitwiseBitmap::CompressedFormatInfo(TDisplayMode aDispMode, TInt& aBytesPerPack, TInt& aBytesPerCompressed)
|
sl@0
|
2777 |
{
|
sl@0
|
2778 |
switch (aDispMode)
|
sl@0
|
2779 |
{
|
sl@0
|
2780 |
case EGray2:
|
sl@0
|
2781 |
case EGray4:
|
sl@0
|
2782 |
case EGray16:
|
sl@0
|
2783 |
case EColor16:
|
sl@0
|
2784 |
case EGray256:
|
sl@0
|
2785 |
case EColor256:
|
sl@0
|
2786 |
aBytesPerPack = 1;
|
sl@0
|
2787 |
aBytesPerCompressed = 1;
|
sl@0
|
2788 |
break;
|
sl@0
|
2789 |
case EColor4K:
|
sl@0
|
2790 |
case EColor64K:
|
sl@0
|
2791 |
aBytesPerPack = 2;
|
sl@0
|
2792 |
aBytesPerCompressed = 2;
|
sl@0
|
2793 |
break;
|
sl@0
|
2794 |
case EColor16M:
|
sl@0
|
2795 |
aBytesPerPack = 3;
|
sl@0
|
2796 |
aBytesPerCompressed = 3;
|
sl@0
|
2797 |
break;
|
sl@0
|
2798 |
case EColor16MU:
|
sl@0
|
2799 |
aBytesPerPack = 4;
|
sl@0
|
2800 |
aBytesPerCompressed = 3; //when compressed, 16MU is stored as 16M
|
sl@0
|
2801 |
break;
|
sl@0
|
2802 |
case EColor16MA:
|
sl@0
|
2803 |
case EColor16MAP:
|
sl@0
|
2804 |
aBytesPerPack = 4;
|
sl@0
|
2805 |
aBytesPerCompressed = 4;
|
sl@0
|
2806 |
break;
|
sl@0
|
2807 |
default:
|
sl@0
|
2808 |
__ASSERT_DEBUG(0, ::Panic(EFbsBitmapInvalidMode));
|
sl@0
|
2809 |
return KErrNotSupported;
|
sl@0
|
2810 |
}
|
sl@0
|
2811 |
|
sl@0
|
2812 |
return KErrNone;
|
sl@0
|
2813 |
}
|
sl@0
|
2814 |
TInt CBitwiseBitmap::IsColor(TDisplayMode aDispMode)
|
sl@0
|
2815 |
{
|
sl@0
|
2816 |
switch (aDispMode)
|
sl@0
|
2817 |
{
|
sl@0
|
2818 |
case EGray2:
|
sl@0
|
2819 |
case EGray4:
|
sl@0
|
2820 |
case EGray16:
|
sl@0
|
2821 |
case EGray256:
|
sl@0
|
2822 |
return SEpocBitmapHeader::ENoColor;
|
sl@0
|
2823 |
case EColor16:
|
sl@0
|
2824 |
case EColor256:
|
sl@0
|
2825 |
case EColor4K:
|
sl@0
|
2826 |
case EColor64K:
|
sl@0
|
2827 |
case EColor16M:
|
sl@0
|
2828 |
case EColor16MU:
|
sl@0
|
2829 |
return SEpocBitmapHeader::EColor;
|
sl@0
|
2830 |
case EColor16MA:
|
sl@0
|
2831 |
return SEpocBitmapHeader::EColorAlpha;
|
sl@0
|
2832 |
case EColor16MAP:
|
sl@0
|
2833 |
return SEpocBitmapHeader::EColorAlphaPM;
|
sl@0
|
2834 |
default:
|
sl@0
|
2835 |
::Panic(EFbsBitmapInvalidMode);
|
sl@0
|
2836 |
}
|
sl@0
|
2837 |
|
sl@0
|
2838 |
return SEpocBitmapHeader::EColorUndefined;
|
sl@0
|
2839 |
}
|
sl@0
|
2840 |
|
sl@0
|
2841 |
TDisplayMode CBitwiseBitmap::DisplayMode(TInt aBpp, TInt aColor)
|
sl@0
|
2842 |
{
|
sl@0
|
2843 |
if (aColor)
|
sl@0
|
2844 |
{
|
sl@0
|
2845 |
switch (aBpp)
|
sl@0
|
2846 |
{
|
sl@0
|
2847 |
case 4:
|
sl@0
|
2848 |
return EColor16;
|
sl@0
|
2849 |
case 8:
|
sl@0
|
2850 |
return EColor256;
|
sl@0
|
2851 |
case 12:
|
sl@0
|
2852 |
return EColor4K;
|
sl@0
|
2853 |
case 16:
|
sl@0
|
2854 |
return EColor64K;
|
sl@0
|
2855 |
case 24:
|
sl@0
|
2856 |
return EColor16M;
|
sl@0
|
2857 |
case 32:
|
sl@0
|
2858 |
if(aColor == SEpocBitmapHeader::EColor)
|
sl@0
|
2859 |
return EColor16MU;
|
sl@0
|
2860 |
else if(aColor == SEpocBitmapHeader::EColorAlphaPM)
|
sl@0
|
2861 |
return EColor16MAP;
|
sl@0
|
2862 |
else if(aColor == SEpocBitmapHeader::EColorAlpha)
|
sl@0
|
2863 |
return EColor16MA;
|
sl@0
|
2864 |
else
|
sl@0
|
2865 |
return ENone;
|
sl@0
|
2866 |
default:
|
sl@0
|
2867 |
return ENone;
|
sl@0
|
2868 |
}
|
sl@0
|
2869 |
}
|
sl@0
|
2870 |
else
|
sl@0
|
2871 |
{
|
sl@0
|
2872 |
switch (aBpp)
|
sl@0
|
2873 |
{
|
sl@0
|
2874 |
case 1:
|
sl@0
|
2875 |
return EGray2;
|
sl@0
|
2876 |
case 2:
|
sl@0
|
2877 |
return EGray4;
|
sl@0
|
2878 |
case 4:
|
sl@0
|
2879 |
return EGray16;
|
sl@0
|
2880 |
case 8:
|
sl@0
|
2881 |
return EGray256;
|
sl@0
|
2882 |
default:
|
sl@0
|
2883 |
return ENone;
|
sl@0
|
2884 |
}
|
sl@0
|
2885 |
}
|
sl@0
|
2886 |
}
|
sl@0
|
2887 |
|
sl@0
|
2888 |
TBitmapfileCompression CBitwiseBitmap::CompressionType(TInt aBpp, TInt aColor)
|
sl@0
|
2889 |
{
|
sl@0
|
2890 |
switch (aBpp)
|
sl@0
|
2891 |
{
|
sl@0
|
2892 |
case 1:
|
sl@0
|
2893 |
case 2:
|
sl@0
|
2894 |
case 4:
|
sl@0
|
2895 |
case 8:
|
sl@0
|
2896 |
return EByteRLECompression;
|
sl@0
|
2897 |
case 12:
|
sl@0
|
2898 |
return ETwelveBitRLECompression;
|
sl@0
|
2899 |
case 16:
|
sl@0
|
2900 |
return ESixteenBitRLECompression;
|
sl@0
|
2901 |
case 24:
|
sl@0
|
2902 |
return ETwentyFourBitRLECompression;
|
sl@0
|
2903 |
case 32:
|
sl@0
|
2904 |
__ASSERT_DEBUG((aColor==SEpocBitmapHeader::EColor) ||
|
sl@0
|
2905 |
(aColor==SEpocBitmapHeader::EColorAlpha) ||
|
sl@0
|
2906 |
aColor==SEpocBitmapHeader::EColorAlphaPM,
|
sl@0
|
2907 |
::Panic(EFbsBitmapInvalidCompression));
|
sl@0
|
2908 |
if(aColor == SEpocBitmapHeader::EColor)
|
sl@0
|
2909 |
{
|
sl@0
|
2910 |
return EThirtyTwoUBitRLECompression;
|
sl@0
|
2911 |
}
|
sl@0
|
2912 |
else
|
sl@0
|
2913 |
{
|
sl@0
|
2914 |
return EThirtyTwoABitRLECompression;
|
sl@0
|
2915 |
}
|
sl@0
|
2916 |
default:
|
sl@0
|
2917 |
return ENoBitmapCompression;
|
sl@0
|
2918 |
}
|
sl@0
|
2919 |
}
|
sl@0
|
2920 |
|
sl@0
|
2921 |
/**
|
sl@0
|
2922 |
@internalComponent
|
sl@0
|
2923 |
@return The display mode used to create the bitmap.
|
sl@0
|
2924 |
*/
|
sl@0
|
2925 |
TDisplayMode CBitwiseBitmap::InitialDisplayMode() const
|
sl@0
|
2926 |
{
|
sl@0
|
2927 |
return iSettings.InitialDisplayMode();
|
sl@0
|
2928 |
}
|
sl@0
|
2929 |
|
sl@0
|
2930 |
/**
|
sl@0
|
2931 |
The method changes current display mode of the bitmap.
|
sl@0
|
2932 |
Requested display mode can't be greater (bpp value) than the initial display mode.
|
sl@0
|
2933 |
CBitwiseBitmap instances are shared between the client and server side and
|
sl@0
|
2934 |
SetDisplayMode() can be called only from the client side, because its functionality depends
|
sl@0
|
2935 |
on the RFbsSession instance.
|
sl@0
|
2936 |
The method can't leave because of out of memory condition or something else - no
|
sl@0
|
2937 |
additional memory is allocated or "L" methods called.
|
sl@0
|
2938 |
The bitmap content is preserved when converting it to the requested display mode,
|
sl@0
|
2939 |
but there may be some loss of a quality.
|
sl@0
|
2940 |
@internalComponent
|
sl@0
|
2941 |
@param aDisplayMode Requested display mode.
|
sl@0
|
2942 |
@param aDataAddress Bitmap data address.
|
sl@0
|
2943 |
@return KErrArgument If the requested mode is invalid, or greater (bpp value) than the
|
sl@0
|
2944 |
initial display mode.
|
sl@0
|
2945 |
@return KErrNotSupported If the bitmap is compressed, or it is a ROM bitmap,
|
sl@0
|
2946 |
an extended bitmap or a hardware bitmap.
|
sl@0
|
2947 |
@return KErrNone If the method call is successfull.
|
sl@0
|
2948 |
*/
|
sl@0
|
2949 |
TInt CBitwiseBitmap::SetDisplayMode(TDisplayMode aDisplayMode, TUint32* aDataAddress)
|
sl@0
|
2950 |
{
|
sl@0
|
2951 |
TDisplayMode curDisplayMode = iSettings.CurrentDisplayMode();
|
sl@0
|
2952 |
//If requested mode is the same as current mode - do nothing.
|
sl@0
|
2953 |
if(curDisplayMode == aDisplayMode)
|
sl@0
|
2954 |
{
|
sl@0
|
2955 |
return KErrNone;
|
sl@0
|
2956 |
}
|
sl@0
|
2957 |
//Argument and bitmap state check.
|
sl@0
|
2958 |
TInt err = DisplayModeArgCheck(aDisplayMode, aDataAddress);
|
sl@0
|
2959 |
if(err != KErrNone)
|
sl@0
|
2960 |
{
|
sl@0
|
2961 |
return err;
|
sl@0
|
2962 |
}
|
sl@0
|
2963 |
//data pointers and scan line width calculation.
|
sl@0
|
2964 |
TInt scanLineWidthNew = CBitwiseBitmap::ByteWidth(iHeader.iSizeInPixels.iWidth, aDisplayMode);
|
sl@0
|
2965 |
TInt scanLineWidthInitial = CBitwiseBitmap::ByteWidth(iHeader.iSizeInPixels.iWidth, iSettings.InitialDisplayMode());
|
sl@0
|
2966 |
TInt bmpSizeInitial = scanLineWidthInitial * iHeader.iSizeInPixels.iHeight;
|
sl@0
|
2967 |
TUint8* baseAddr = reinterpret_cast <TUint8*> (aDataAddress);
|
sl@0
|
2968 |
TUint8* dataAddrNew = baseAddr;
|
sl@0
|
2969 |
TInt yStart = 0;
|
sl@0
|
2970 |
TInt yInc = 1;
|
sl@0
|
2971 |
TInt yEnd = iHeader.iSizeInPixels.iHeight;
|
sl@0
|
2972 |
//If requested display mode has more bits per pixel than current display mode - we have
|
sl@0
|
2973 |
//to start copying operation from the end of the bitmap, otherwise we will overwrite the
|
sl@0
|
2974 |
//bitmap data.
|
sl@0
|
2975 |
if(aDisplayMode > curDisplayMode)
|
sl@0
|
2976 |
{
|
sl@0
|
2977 |
dataAddrNew += bmpSizeInitial - scanLineWidthNew;
|
sl@0
|
2978 |
scanLineWidthNew = -scanLineWidthNew;
|
sl@0
|
2979 |
yStart = yEnd - 1;
|
sl@0
|
2980 |
yInc = -1;
|
sl@0
|
2981 |
yEnd = -1;
|
sl@0
|
2982 |
}
|
sl@0
|
2983 |
//Change the display mode
|
sl@0
|
2984 |
ChangeDisplayMode(aDisplayMode, scanLineWidthNew, dataAddrNew, aDataAddress, yStart, yInc, yEnd);
|
sl@0
|
2985 |
//Move the data to the aDataAddress.
|
sl@0
|
2986 |
if(aDisplayMode > curDisplayMode)
|
sl@0
|
2987 |
{
|
sl@0
|
2988 |
TInt bmpSizeNew = -scanLineWidthNew * iHeader.iSizeInPixels.iHeight;
|
sl@0
|
2989 |
Mem::Move(baseAddr, baseAddr + bmpSizeInitial - bmpSizeNew, bmpSizeNew);
|
sl@0
|
2990 |
}
|
sl@0
|
2991 |
//Update the bitmap properties
|
sl@0
|
2992 |
UpdateBitmapProperties(aDisplayMode);
|
sl@0
|
2993 |
return KErrNone;
|
sl@0
|
2994 |
}
|
sl@0
|
2995 |
|
sl@0
|
2996 |
/**
|
sl@0
|
2997 |
The method is caled from CBitwiseBitmap::SetDisplayMode() and
|
sl@0
|
2998 |
checks the aDisplayMode argument and bitmap internal state.
|
sl@0
|
2999 |
Requested display mode can't be greater (bpp value) than the initial display mode.
|
sl@0
|
3000 |
Note: The method must be called only from CBitwiseBitmap::SetDisplayMode method.
|
sl@0
|
3001 |
@internalComponent
|
sl@0
|
3002 |
@param aDisplayMode Requested display mode.
|
sl@0
|
3003 |
@param aDataAddress Bitmap data address.
|
sl@0
|
3004 |
@return KErrArgument If the requested mode is invalid, or greater (bpp value)
|
sl@0
|
3005 |
than the initial mode.
|
sl@0
|
3006 |
@return KErrNotSupported If the bitmap is compressed, or it is a ROM bitmap,
|
sl@0
|
3007 |
an extended bitmap or a hardware bitmap.
|
sl@0
|
3008 |
@return KErrNone If the method call is successfull.
|
sl@0
|
3009 |
@see CBitwiseBitmap::SetDisplayMode.
|
sl@0
|
3010 |
*/
|
sl@0
|
3011 |
TInt CBitwiseBitmap::DisplayModeArgCheck(TDisplayMode aDisplayMode, TUint32* aDataAddress) const
|
sl@0
|
3012 |
{
|
sl@0
|
3013 |
if(!aDataAddress || iHeader.iSizeInPixels.iWidth == 0 || iHeader.iSizeInPixels.iHeight == 0)
|
sl@0
|
3014 |
{
|
sl@0
|
3015 |
return KErrGeneral;
|
sl@0
|
3016 |
}
|
sl@0
|
3017 |
TBool romAddr = EFalse;
|
sl@0
|
3018 |
User::IsRomAddress(romAddr, aDataAddress);
|
sl@0
|
3019 |
if(romAddr || //ROM bitmap
|
sl@0
|
3020 |
(iUid.iUid != KCBitwiseBitmapUid.iUid) || //RHardwareBitmap or extended bitmap
|
sl@0
|
3021 |
IsCompressed() //Compressed
|
sl@0
|
3022 |
)
|
sl@0
|
3023 |
{
|
sl@0
|
3024 |
return KErrNotSupported;
|
sl@0
|
3025 |
}
|
sl@0
|
3026 |
if(aDisplayMode == ENone || aDisplayMode == ERgb)
|
sl@0
|
3027 |
{
|
sl@0
|
3028 |
return KErrArgument;
|
sl@0
|
3029 |
}
|
sl@0
|
3030 |
if (iSettings.InitialDisplayMode()==EColor16 && aDisplayMode==EGray256)
|
sl@0
|
3031 |
{
|
sl@0
|
3032 |
return KErrArgument;
|
sl@0
|
3033 |
}
|
sl@0
|
3034 |
// The order of the display mode in the TDisplayMode
|
sl@0
|
3035 |
// ENone,EGray2,EGray4,EGray16,EGray256,EColor16,EColor256,EColor64K,EColor16M,ERgb,EColor4K,EColor16MU
|
sl@0
|
3036 |
|
sl@0
|
3037 |
//special case where initial mode is EColor4K & to be set to EColor64K & EColor16M which has lower enum
|
sl@0
|
3038 |
if (iSettings.InitialDisplayMode()==EColor4K )
|
sl@0
|
3039 |
{
|
sl@0
|
3040 |
if (aDisplayMode==EColor64K || aDisplayMode==EColor16M)
|
sl@0
|
3041 |
return KErrArgument;
|
sl@0
|
3042 |
}
|
sl@0
|
3043 |
|
sl@0
|
3044 |
if(aDisplayMode == EColor16MAP)
|
sl@0
|
3045 |
{
|
sl@0
|
3046 |
TDisplayMode mode = iSettings.InitialDisplayMode();
|
sl@0
|
3047 |
if((mode == EColor16MA)||(mode == EColor16MU)||(mode == EColor16MAP))
|
sl@0
|
3048 |
{
|
sl@0
|
3049 |
return KErrNone;
|
sl@0
|
3050 |
}
|
sl@0
|
3051 |
else{
|
sl@0
|
3052 |
return KErrArgument;
|
sl@0
|
3053 |
}
|
sl@0
|
3054 |
}
|
sl@0
|
3055 |
if(iSettings.InitialDisplayMode() == EColor16MAP)
|
sl@0
|
3056 |
{
|
sl@0
|
3057 |
return KErrNone;
|
sl@0
|
3058 |
}
|
sl@0
|
3059 |
if(aDisplayMode > iSettings.InitialDisplayMode())
|
sl@0
|
3060 |
{
|
sl@0
|
3061 |
if (iSettings.InitialDisplayMode()>=EColor64K && aDisplayMode == EColor4K)
|
sl@0
|
3062 |
{
|
sl@0
|
3063 |
return KErrNone;
|
sl@0
|
3064 |
}
|
sl@0
|
3065 |
if (iSettings.InitialDisplayMode()==EColor16MU &&
|
sl@0
|
3066 |
(Bpp(aDisplayMode) == 32))
|
sl@0
|
3067 |
{
|
sl@0
|
3068 |
return KErrNone;
|
sl@0
|
3069 |
}
|
sl@0
|
3070 |
return KErrArgument;
|
sl@0
|
3071 |
}
|
sl@0
|
3072 |
|
sl@0
|
3073 |
return KErrNone;
|
sl@0
|
3074 |
}
|
sl@0
|
3075 |
|
sl@0
|
3076 |
/**
|
sl@0
|
3077 |
The method changes current display mode of the bitmap converting bitmap scan lines
|
sl@0
|
3078 |
color and writting the resulting scan line to the same memory occupied by the bitmap.
|
sl@0
|
3079 |
No additional memory is allocated.
|
sl@0
|
3080 |
Note: The method must be called only from CBitwiseBitmap::SetDisplayMode method.
|
sl@0
|
3081 |
@internalComponent
|
sl@0
|
3082 |
@param aNewDisplayMode Requested display mode.
|
sl@0
|
3083 |
@param aScanLineWidthNew Scan line width - with the new display mode. It could be negative
|
sl@0
|
3084 |
if the new display mode is with less bits per pixel than the existing display mode.
|
sl@0
|
3085 |
@param aDataAddrNew New bitmap data - Points to the place where the copying has to start to.
|
sl@0
|
3086 |
@param aDataAddress Bitmap data address.
|
sl@0
|
3087 |
@param aYStart First scan line number.
|
sl@0
|
3088 |
@param aYInc Scan line increment value.
|
sl@0
|
3089 |
@param aYEnd Last scan line number.
|
sl@0
|
3090 |
@see CBitwiseBitmap::SetDisplayMode.
|
sl@0
|
3091 |
*/
|
sl@0
|
3092 |
void CBitwiseBitmap::ChangeDisplayMode( TDisplayMode aNewDisplayMode,
|
sl@0
|
3093 |
TInt aScanLineWidthNew,
|
sl@0
|
3094 |
TUint8* aDataAddrNew,
|
sl@0
|
3095 |
TUint32* aDataAddress,
|
sl@0
|
3096 |
TInt aYStart,
|
sl@0
|
3097 |
TInt aYInc,
|
sl@0
|
3098 |
TInt aYEnd)
|
sl@0
|
3099 |
{
|
sl@0
|
3100 |
const TInt KScanLineBufSizeInPixels = 256;//temporary scan line buffer size - in pixels
|
sl@0
|
3101 |
const TInt KRgbBytes = 4;
|
sl@0
|
3102 |
const TInt KScanLineBufSizeInBytes = KScanLineBufSizeInPixels * KRgbBytes;
|
sl@0
|
3103 |
TUint8 scanLineData[KScanLineBufSizeInBytes];
|
sl@0
|
3104 |
static const TInt KScanLinePixels[] = //The rounded number of pixels - the closest number that
|
sl@0
|
3105 |
{ //could fill scanLineData buffer - depending on current display mode
|
sl@0
|
3106 |
0, //ENone - INVALID mode
|
sl@0
|
3107 |
KScanLineBufSizeInBytes * 8, //EGray2
|
sl@0
|
3108 |
KScanLineBufSizeInBytes * 4, //EGray4
|
sl@0
|
3109 |
KScanLineBufSizeInBytes * 2, //EGray16
|
sl@0
|
3110 |
KScanLineBufSizeInBytes * 1, //EGray256
|
sl@0
|
3111 |
KScanLineBufSizeInBytes * 2, //EColor16
|
sl@0
|
3112 |
KScanLineBufSizeInBytes * 1, //EColor256
|
sl@0
|
3113 |
KScanLineBufSizeInPixels * KRgbBytes / 2, //EColor64K
|
sl@0
|
3114 |
KScanLineBufSizeInPixels, //EColor16M
|
sl@0
|
3115 |
0, //ERgb - INVALID mode
|
sl@0
|
3116 |
KScanLineBufSizeInPixels * KRgbBytes / 2, //EColor4K - the same as EColor64K
|
sl@0
|
3117 |
KScanLineBufSizeInPixels * KRgbBytes / 4, //EColor16MU
|
sl@0
|
3118 |
KScanLineBufSizeInPixels * KRgbBytes / 4, //EColor16MA
|
sl@0
|
3119 |
KScanLineBufSizeInPixels * KRgbBytes / 4 //EColor16MAP
|
sl@0
|
3120 |
};
|
sl@0
|
3121 |
__ASSERT_DEBUG(aNewDisplayMode < TInt(sizeof(KScanLinePixels) / sizeof(KScanLinePixels[0])), ::Panic(EFbsBitmapInvalidMode3));
|
sl@0
|
3122 |
//
|
sl@0
|
3123 |
TPtr8 ptr(scanLineData, sizeof(scanLineData), sizeof(scanLineData));
|
sl@0
|
3124 |
TDes8& scanLineDes = ptr;
|
sl@0
|
3125 |
TLineScanningPosition lineScanningPosition(aDataAddress);
|
sl@0
|
3126 |
TPoint startPixel(0, 0);
|
sl@0
|
3127 |
TPoint ditherOffset(0, 0);
|
sl@0
|
3128 |
//For each line:
|
sl@0
|
3129 |
//1. Get a scan line in requested display mode
|
sl@0
|
3130 |
//2. Copy the scan line to the destination buffer, pointed by dataAddrNew
|
sl@0
|
3131 |
TUint8* dataAddrNew = aDataAddrNew;
|
sl@0
|
3132 |
for(TInt i=aYStart;i!=aYEnd;i+=aYInc)
|
sl@0
|
3133 |
{
|
sl@0
|
3134 |
startPixel.iX = 0;
|
sl@0
|
3135 |
startPixel.iY = i;
|
sl@0
|
3136 |
TUint8* scanLineDataAddr = dataAddrNew;
|
sl@0
|
3137 |
TInt scanLinePixelsLeft = iHeader.iSizeInPixels.iWidth;
|
sl@0
|
3138 |
while(scanLinePixelsLeft > 0)
|
sl@0
|
3139 |
{
|
sl@0
|
3140 |
TInt pixelsCnt = KScanLinePixels[aNewDisplayMode]; //how many pixels we can get at a time - the maximum
|
sl@0
|
3141 |
TInt bytesCnt = KScanLineBufSizeInBytes; //how many bytes the pixels are - the maximum
|
sl@0
|
3142 |
if(pixelsCnt > scanLinePixelsLeft) //in that case the "while" loop will be executed for the last time
|
sl@0
|
3143 |
{
|
sl@0
|
3144 |
pixelsCnt = scanLinePixelsLeft;
|
sl@0
|
3145 |
bytesCnt = CBitwiseBitmap::ByteWidth(pixelsCnt, aNewDisplayMode);
|
sl@0
|
3146 |
}
|
sl@0
|
3147 |
__ASSERT_DEBUG(pixelsCnt > 0, ::Panic(EFbsBitmapInvalidMode2));//I want to be sure - if someone adds an additional display mode - ChangeDisplayMode() source has been updated too!
|
sl@0
|
3148 |
GetScanLine(scanLineDes, startPixel, pixelsCnt, EFalse, //Get the scan line data
|
sl@0
|
3149 |
ditherOffset, aNewDisplayMode, aDataAddress, lineScanningPosition);
|
sl@0
|
3150 |
Mem::Copy(scanLineDataAddr, scanLineData, bytesCnt);//copy the data to its new address
|
sl@0
|
3151 |
scanLineDataAddr += bytesCnt;//increment the address
|
sl@0
|
3152 |
scanLinePixelsLeft -= pixelsCnt;//decrement the count of pixels left
|
sl@0
|
3153 |
startPixel.iX += pixelsCnt;//increment the X coordinate
|
sl@0
|
3154 |
}//end of - while(scanLineLengthLeft > 0)
|
sl@0
|
3155 |
dataAddrNew += aScanLineWidthNew;
|
sl@0
|
3156 |
}//end of - for(TInt i=aYStart;i!=aYEnd;i+=aYInc)
|
sl@0
|
3157 |
}
|
sl@0
|
3158 |
|
sl@0
|
3159 |
/**
|
sl@0
|
3160 |
The method updates CBitwiseBitmap data members regarding to the new display mode.
|
sl@0
|
3161 |
Note: The method must be called only from CBitwiseBitmap::SetDisplayMode method.
|
sl@0
|
3162 |
@internalComponent
|
sl@0
|
3163 |
@param aNewDisplayMode The new display mode.
|
sl@0
|
3164 |
@see CBitwiseBitmap::SetDisplayMode.
|
sl@0
|
3165 |
*/
|
sl@0
|
3166 |
void CBitwiseBitmap::UpdateBitmapProperties(TDisplayMode aNewDisplayMode)
|
sl@0
|
3167 |
{
|
sl@0
|
3168 |
iSettings.SetCurrentDisplayMode(aNewDisplayMode);
|
sl@0
|
3169 |
iByteWidth = CBitwiseBitmap::ByteWidth(iHeader.iSizeInPixels.iWidth, aNewDisplayMode);
|
sl@0
|
3170 |
iHeader.iBitsPerPixel = CBitwiseBitmap::Bpp(aNewDisplayMode);
|
sl@0
|
3171 |
iHeader.iColor = CBitwiseBitmap::IsColor(aNewDisplayMode);
|
sl@0
|
3172 |
}
|
sl@0
|
3173 |
|
sl@0
|
3174 |
/**
|
sl@0
|
3175 |
The method swaps the bitmap width and height.
|
sl@0
|
3176 |
For example: if the bitmap size is (40, 20), the new bitmap size will be (20, 40).
|
sl@0
|
3177 |
Bitmap content is not preserved.
|
sl@0
|
3178 |
@internalComponent
|
sl@0
|
3179 |
@param aDataAddress Bitmap data address.
|
sl@0
|
3180 |
@return KErrNone The call was successfull.
|
sl@0
|
3181 |
@return KErrAccessDenied ROM bitmap size can't be swapped.
|
sl@0
|
3182 |
@return KErrNotSupported Hardware or extended bitmap size can't be swapped.
|
sl@0
|
3183 |
*/
|
sl@0
|
3184 |
TInt CBitwiseBitmap::SwapWidthAndHeight(TUint32* aDataAddress)
|
sl@0
|
3185 |
{
|
sl@0
|
3186 |
if (iUid.iUid != KCBitwiseBitmapUid.iUid) // RHardwareBitmap or extended bitmap
|
sl@0
|
3187 |
{
|
sl@0
|
3188 |
return KErrNotSupported;
|
sl@0
|
3189 |
}
|
sl@0
|
3190 |
|
sl@0
|
3191 |
TBool romAddr = EFalse;
|
sl@0
|
3192 |
User::IsRomAddress(romAddr, aDataAddress);
|
sl@0
|
3193 |
if (romAddr) //ROM bitmap
|
sl@0
|
3194 |
{
|
sl@0
|
3195 |
return KErrAccessDenied;
|
sl@0
|
3196 |
}
|
sl@0
|
3197 |
|
sl@0
|
3198 |
//Check the new bitmap size - it should not exeed the size of the allocated memory
|
sl@0
|
3199 |
TInt newWidthInBytes = CBitwiseBitmap::ByteWidth(iHeader.iSizeInPixels.iHeight, iSettings.CurrentDisplayMode());
|
sl@0
|
3200 |
TInt64 hugeDataSize = TInt64(iHeader.iSizeInPixels.iWidth) * TInt64(newWidthInBytes);
|
sl@0
|
3201 |
__ASSERT_ALWAYS(I64HIGH(hugeDataSize) == 0 &&
|
sl@0
|
3202 |
I64LOW(hugeDataSize) <= TUint(iHeader.iBitmapSize - iHeader.iStructSize),
|
sl@0
|
3203 |
::Panic(EFbsBitmapSwappingImpossible));
|
sl@0
|
3204 |
|
sl@0
|
3205 |
//Initialize the data members with the new values
|
sl@0
|
3206 |
iByteWidth = CBitwiseBitmap::ByteWidth(iHeader.iSizeInPixels.iHeight, iSettings.CurrentDisplayMode());
|
sl@0
|
3207 |
TInt temp = iHeader.iSizeInPixels.iWidth;
|
sl@0
|
3208 |
iHeader.iSizeInPixels.iWidth = iHeader.iSizeInPixels.iHeight;
|
sl@0
|
3209 |
iHeader.iSizeInPixels.iHeight = temp;
|
sl@0
|
3210 |
temp = iHeader.iSizeInTwips.iWidth;
|
sl@0
|
3211 |
iHeader.iSizeInTwips.iWidth = iHeader.iSizeInTwips.iHeight;
|
sl@0
|
3212 |
iHeader.iSizeInTwips.iHeight = temp;
|
sl@0
|
3213 |
return KErrNone;
|
sl@0
|
3214 |
}
|
sl@0
|
3215 |
|
sl@0
|
3216 |
/**
|
sl@0
|
3217 |
Compile time check is performed on the class size - the class size must be
|
sl@0
|
3218 |
the same as the size of TDisplayMode type. If the class size is not the same
|
sl@0
|
3219 |
as TDisplayMode type size - BC will be broken.
|
sl@0
|
3220 |
Note: CBitwiseBitmap::iSettings data member must be aligned on 16 bits boundary
|
sl@0
|
3221 |
because CBitwiseBitmap instances can be a part of the ROM image.
|
sl@0
|
3222 |
@internalComponent
|
sl@0
|
3223 |
@param aDisplayMode The display mode.
|
sl@0
|
3224 |
*/
|
sl@0
|
3225 |
CBitwiseBitmap::TSettings::TSettings(TDisplayMode aDisplayMode):
|
sl@0
|
3226 |
iData(0)
|
sl@0
|
3227 |
{
|
sl@0
|
3228 |
//"CBitwiseBitmap::iSettings" data mamber - bit format:
|
sl@0
|
3229 |
// MSB LSB
|
sl@0
|
3230 |
// 16 : 8 : 8
|
sl@0
|
3231 |
// Flags Initial display mode Current display mode
|
sl@0
|
3232 |
//
|
sl@0
|
3233 |
//CBitwiseBitmap - TSettings member has been put in place of previous iDispMode
|
sl@0
|
3234 |
//class member. So, TSettings data member has to occupy the same space as
|
sl@0
|
3235 |
//not existing anymore iDispMode member.
|
sl@0
|
3236 |
COMPILE_TIME_ASSERT(sizeof(TSettings) == sizeof(TDisplayMode));
|
sl@0
|
3237 |
//We can't have TDisplayMode enum value greater than 255 because we encode it
|
sl@0
|
3238 |
//int 8 bits of iData data member.
|
sl@0
|
3239 |
COMPILE_TIME_ASSERT(EColorLast < 256);
|
sl@0
|
3240 |
SetDisplayModes(aDisplayMode);
|
sl@0
|
3241 |
}
|
sl@0
|
3242 |
|
sl@0
|
3243 |
/**
|
sl@0
|
3244 |
The method initializes both - current display mode and initial display mode parts of iData
|
sl@0
|
3245 |
with aDisplayMode parameter.
|
sl@0
|
3246 |
@internalComponent
|
sl@0
|
3247 |
@param aDisplayMode The display mode used for current display mode and initial display mode
|
sl@0
|
3248 |
parts of iData initialization
|
sl@0
|
3249 |
*/
|
sl@0
|
3250 |
void CBitwiseBitmap::TSettings::SetDisplayModes(TDisplayMode aDisplayMode)
|
sl@0
|
3251 |
{
|
sl@0
|
3252 |
iData &= 0xFFFF0000;
|
sl@0
|
3253 |
iData |= TUint16(aDisplayMode << 8);
|
sl@0
|
3254 |
iData |= TUint8(aDisplayMode);
|
sl@0
|
3255 |
}
|
sl@0
|
3256 |
|
sl@0
|
3257 |
/**
|
sl@0
|
3258 |
The method initializes current display mode part of iData with aDisplayMode parameter.
|
sl@0
|
3259 |
@internalComponent
|
sl@0
|
3260 |
@param aDisplayMode The display mode used for current display mode part of iData initialization.
|
sl@0
|
3261 |
*/
|
sl@0
|
3262 |
void CBitwiseBitmap::TSettings::SetCurrentDisplayMode(TDisplayMode aDisplayMode)
|
sl@0
|
3263 |
{
|
sl@0
|
3264 |
iData &= 0xFFFFFF00;
|
sl@0
|
3265 |
iData |= TUint8(aDisplayMode);
|
sl@0
|
3266 |
}
|
sl@0
|
3267 |
|
sl@0
|
3268 |
/**
|
sl@0
|
3269 |
The method returns current display mode.
|
sl@0
|
3270 |
@internalComponent
|
sl@0
|
3271 |
Note: Current display mode can never be greater (bpp value) than initial display mode.
|
sl@0
|
3272 |
@return Current display mode.
|
sl@0
|
3273 |
*/
|
sl@0
|
3274 |
TDisplayMode CBitwiseBitmap::TSettings::CurrentDisplayMode() const
|
sl@0
|
3275 |
{
|
sl@0
|
3276 |
return TDisplayMode(iData & 0x000000FF);
|
sl@0
|
3277 |
}
|
sl@0
|
3278 |
|
sl@0
|
3279 |
/**
|
sl@0
|
3280 |
The method returns initial display mode.
|
sl@0
|
3281 |
@internalComponent
|
sl@0
|
3282 |
@return The initial display mode.
|
sl@0
|
3283 |
*/
|
sl@0
|
3284 |
TDisplayMode CBitwiseBitmap::TSettings::InitialDisplayMode() const
|
sl@0
|
3285 |
{
|
sl@0
|
3286 |
return TDisplayMode((iData & 0x0000FF00) >> 8);
|
sl@0
|
3287 |
}
|
sl@0
|
3288 |
|
sl@0
|
3289 |
/**
|
sl@0
|
3290 |
The method adjusts specified X coordinate if it is negative or outside the bitmap.
|
sl@0
|
3291 |
@internalComponent
|
sl@0
|
3292 |
@param aX - a reference to x coordinate - the value might be changed after the method call.
|
sl@0
|
3293 |
*/
|
sl@0
|
3294 |
void CBitwiseBitmap::AdjustXCoord(TInt& aX) const
|
sl@0
|
3295 |
{
|
sl@0
|
3296 |
if (aX>=iHeader.iSizeInPixels.iWidth || aX<-iHeader.iSizeInPixels.iWidth)
|
sl@0
|
3297 |
aX%=iHeader.iSizeInPixels.iWidth;
|
sl@0
|
3298 |
if (aX<0)
|
sl@0
|
3299 |
aX+=iHeader.iSizeInPixels.iWidth;
|
sl@0
|
3300 |
}
|
sl@0
|
3301 |
|
sl@0
|
3302 |
/**
|
sl@0
|
3303 |
If the bitmap is compressed in RAM, the method will find its compresssion bookmark,
|
sl@0
|
3304 |
which is located at the end of the bitmap data and will reinitialize aLineScanPos
|
sl@0
|
3305 |
parameter.
|
sl@0
|
3306 |
@internalComponent
|
sl@0
|
3307 |
@param aLineScanPos Line scaning position. It is used by scan line decompression methods.
|
sl@0
|
3308 |
@param aComprBookMark If the bitmap is compressed in RAM, aComprBookMark will be initialized
|
sl@0
|
3309 |
to point to its compression bookmark data. The compression bookmark data will be used for
|
sl@0
|
3310 |
aLineScanPos initialization.
|
sl@0
|
3311 |
@param aBase It points to the beginning of the bitmap data.
|
sl@0
|
3312 |
*/
|
sl@0
|
3313 |
void CBitwiseBitmap::GetLineScanPos(TLineScanningPosition& aLineScanPos,
|
sl@0
|
3314 |
const TCompressionBookMark*& aComprBookMark,
|
sl@0
|
3315 |
const TUint8* aBase) const
|
sl@0
|
3316 |
{
|
sl@0
|
3317 |
if (iIsCompressedInRAM && (iHeader.iCompression != EGenericPaletteCompression) && (iHeap != NULL))
|
sl@0
|
3318 |
{
|
sl@0
|
3319 |
TInt compressed_data_bytes = iHeader.iBitmapSize - sizeof(SEpocBitmapHeader);
|
sl@0
|
3320 |
if(compressed_data_bytes > KCompressionBookMarkThreshold)
|
sl@0
|
3321 |
{
|
sl@0
|
3322 |
if(aBase)
|
sl@0
|
3323 |
{
|
sl@0
|
3324 |
TInt alignedSize = (compressed_data_bytes + 3) / 4 * 4;
|
sl@0
|
3325 |
const TUint8* data = aBase + alignedSize + 4;
|
sl@0
|
3326 |
aComprBookMark = reinterpret_cast <const TCompressionBookMark*> (data);
|
sl@0
|
3327 |
if (aComprBookMark->IsCheckSumOk())
|
sl@0
|
3328 |
{
|
sl@0
|
3329 |
aLineScanPos.iSrcDataPtr = const_cast <TUint8*> (aBase) + aComprBookMark->iSrcDataOffset;
|
sl@0
|
3330 |
aLineScanPos.iCursorPos = aComprBookMark->iCursorPos;
|
sl@0
|
3331 |
}
|
sl@0
|
3332 |
}
|
sl@0
|
3333 |
}
|
sl@0
|
3334 |
}
|
sl@0
|
3335 |
}
|
sl@0
|
3336 |
|
sl@0
|
3337 |
/**
|
sl@0
|
3338 |
If the bitmap is compressed in RAM, the method will update its compresssion bookmark data,
|
sl@0
|
3339 |
which is located at the end of the bitmap data.
|
sl@0
|
3340 |
@internalComponent
|
sl@0
|
3341 |
@param aLineScanPos Line scaning position.
|
sl@0
|
3342 |
@param aComprBookMark If the bitmap is compressed in RAM, aComprBookMark points to its
|
sl@0
|
3343 |
compression bookmark data.
|
sl@0
|
3344 |
@param aBase It points to the beginning of the bitmap data.
|
sl@0
|
3345 |
*/
|
sl@0
|
3346 |
void CBitwiseBitmap::UpdateBookMark(const TLineScanningPosition& aLineScanPos,
|
sl@0
|
3347 |
TCompressionBookMark* aComprBookMark,
|
sl@0
|
3348 |
const TUint8* aBase) const
|
sl@0
|
3349 |
{
|
sl@0
|
3350 |
if (aComprBookMark)
|
sl@0
|
3351 |
{
|
sl@0
|
3352 |
if (aComprBookMark->IsCheckSumOk())
|
sl@0
|
3353 |
{
|
sl@0
|
3354 |
aComprBookMark->iSrcDataOffset=aLineScanPos.iSrcDataPtr-aBase;
|
sl@0
|
3355 |
aComprBookMark->iCursorPos=aLineScanPos.iCursorPos;
|
sl@0
|
3356 |
aComprBookMark->CalculateCheckSum();
|
sl@0
|
3357 |
}
|
sl@0
|
3358 |
}
|
sl@0
|
3359 |
}
|
sl@0
|
3360 |
|
sl@0
|
3361 |
/**
|
sl@0
|
3362 |
The header is exposed by CFbsBitmap so this doesn't break encapsulation.
|
sl@0
|
3363 |
Specifically added to allow CBitmapObject to see compression information.
|
sl@0
|
3364 |
@return Address of iHeader.
|
sl@0
|
3365 |
*/
|
sl@0
|
3366 |
EXPORT_C SEpocBitmapHeader CBitwiseBitmap::Header() const
|
sl@0
|
3367 |
{
|
sl@0
|
3368 |
return iHeader ;
|
sl@0
|
3369 |
}
|