--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/mmplugins/imagingplugins/codecs/WBMPCodec/WBMPConvert.cpp Tue Feb 02 01:56:55 2010 +0200
@@ -0,0 +1,201 @@
+// Copyright (c) 1999-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+//
+
+#include <barsc.h>
+#include <barsread.h>
+#include <bautils.h>
+#include <imageconversion.h>
+#include "ImageClientMain.h"
+#include <101F45CD_extra.rsg>
+#include "icl/ICL_UIDS.hrh"
+#ifdef SYMBIAN_ENABLE_SPLIT_HEADERS
+#include <icl/icl_uids_const.hrh>
+#include <icl/icl_uids_def.hrh>
+#include <icl/imagecodecdef.h>
+#endif
+#include "WBMPCodec.h"
+
+// Constants.
+const TInt KWbmpMaxFileHeaderSize = 12; // Max possible header size for TInt32 width and height values
+const TInt KWbmpMinFileHeaderSize = 4; // Min possible header size for TUint8 width and height values
+
+_LIT(KWBMPPanicCategory, "WBMPConvertPlugin");
+
+// Global panic function
+GLDEF_C void Panic(TIclPanic aError)
+ {
+ User::Panic(KWBMPPanicCategory, aError);
+ }
+
+
+// Wbmp decoder.
+CWbmpDecoder* CWbmpDecoder::NewL()
+ {
+ return new(ELeave) CWbmpDecoder;
+ }
+
+CWbmpDecoder::CWbmpDecoder()
+ {}
+
+CWbmpDecoder::~CWbmpDecoder()
+ {
+ Cleanup();
+ }
+
+void CWbmpDecoder::ImageType(TInt aFrameNumber, TUid& aImageType, TUid& aImageSubType) const
+ {
+ __ASSERT_ALWAYS(aFrameNumber == 0, Panic(EFrameNumberOutOfRange));
+ aImageType = KImageTypeWBMPUid;
+ aImageSubType = KNullUid;
+ }
+
+// Scan header.
+// Validate that format is correct.
+// Create codec.
+// Fill in image info. (All frames)
+void CWbmpDecoder::ScanDataL()
+ {
+ ReadFormatL();
+
+ ASSERT(ImageReadCodec() == NULL);
+
+ CWbmpReadCodec* imageReadCodec = CWbmpReadCodec::NewL(iSize);
+
+ SetImageReadCodec(imageReadCodec);
+
+ ReadFrameHeadersL();
+ }
+
+void CWbmpDecoder::ReadFormatL()
+ {
+ TPtrC8 bufferDes;
+
+ ReadDataL(0, bufferDes, KWbmpMaxFileHeaderSize);
+
+ // Validate the header.
+ if (bufferDes.Length() < KWbmpMinFileHeaderSize)
+ User::Leave(KErrUnderflow);
+
+ const TUint8* ptr = &bufferDes[0];
+ const TUint8* startPtr = ptr;
+ const TUint8* endPtr = startPtr + bufferDes.Length();
+
+ TUint8 typeField = *ptr++;
+ if (typeField != 0)
+ User::Leave(KErrNotSupported);
+
+ // TUint8 fixHeaderField = *ptr++;
+ ptr++; // Skip fixHeaderField
+
+ iSize.iWidth = ReadContinuedValueL(ptr, endPtr);
+ iSize.iHeight = ReadContinuedValueL(ptr, endPtr);
+
+ TInt headerSize = ptr - startPtr;
+ SetStartPosition(headerSize); // KWbmpFileHeaderSize ??
+
+ SetDataLength(headerSize + (((iSize.iWidth + 7) / 8) * iSize.iHeight));
+
+ TFrameInfo imageInfo;
+ imageInfo = ImageInfo();
+ imageInfo.iFrameCoordsInPixels.SetRect(TPoint(0, 0), iSize);
+ imageInfo.iOverallSizeInPixels = iSize;
+ imageInfo.iFrameSizeInTwips = TSize(0, 0);
+ imageInfo.iBitsPerPixel = 1;
+ imageInfo.iDelay = 0;
+ imageInfo.iFlags = 0;
+ imageInfo.iFrameDisplayMode = EGray2;
+ SetImageInfo(imageInfo);
+ }
+
+CFrameInfoStrings* CWbmpDecoder::FrameInfoStringsL(RFs& aFs, TInt aFrameNumber)
+ {
+
+ const TUid KWbmpCodecDllUid = {KWBMPCodecDllUidValue};
+
+ RResourceFile resourceFile;
+ OpenExtraResourceFileLC(aFs,KWbmpCodecDllUid,resourceFile);
+
+ HBufC8* resourceInfo = resourceFile.AllocReadLC(THEDECODERINFO);
+ TResourceReader resourceReader;
+ resourceReader.SetBuffer(resourceInfo);
+
+ TBuf<KCodecResourceStringMax> info;
+ TBuf<KCodecResourceStringMax> templte;
+
+ const TFrameInfo& frameInfo = FrameInfo(aFrameNumber);
+ CFrameInfoStrings* frameInfoStrings = CFrameInfoStrings::NewLC();
+
+ info = resourceReader.ReadTPtrC();
+ frameInfoStrings->SetDecoderL(info);
+
+ info = resourceReader.ReadTPtrC();
+ frameInfoStrings->SetFormatL(info);
+
+ TInt width = frameInfo.iOverallSizeInPixels.iWidth;
+ TInt height = frameInfo.iOverallSizeInPixels.iHeight;
+
+ templte = resourceReader.ReadTPtrC();
+ info.Format(templte, width, height);
+ frameInfoStrings->SetDimensionsL(info);
+
+ info = resourceReader.ReadTPtrC(); // note depth is fixed
+ frameInfoStrings->SetDepthL(info);
+
+ // leave details blank
+
+ CleanupStack::Pop(frameInfoStrings);
+ CleanupStack::PopAndDestroy(2); // resourceInfo + resourceFile
+ return frameInfoStrings;
+ }
+
+
+TInt CWbmpDecoder::ReadContinuedValueL(const TUint8*& aPtr, const TUint8* aEndPtr)
+ {
+ TUint32 value = 0;
+ TInt concatenation;
+ TInt bytecount = 0;
+ do
+ {
+ if (aPtr == aEndPtr)
+ {
+ User::Leave(KErrUnderflow);
+ }
+
+ if ( bytecount > sizeof(TUint32) )
+ {
+ User::Leave(KErrCorrupt);
+ break;
+ }
+ value <<= 7;
+ value |= (aPtr[0] & 0x7f);
+ if ( value > KWBmpMaxImageSize )
+ {
+ User::Leave(KErrCorrupt);
+ break;
+ }
+ concatenation = (aPtr[0] & 0x80);
+ aPtr++;
+ bytecount++;
+ }
+ while (concatenation);
+ if ( value > KWBmpMaxImageSize )
+ {
+ User::Leave(KErrCorrupt);
+ }
+ return value;
+ }
+
+
+