1 /* |
1 /* |
2 * Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies). |
2 * Copyright (c) 2004-2010 Nokia Corporation and/or its subsidiary(-ies). |
3 * All rights reserved. |
3 * All rights reserved. |
4 * This component and the accompanying materials are made available |
4 * This component and the accompanying materials are made available |
5 * under the terms of the License "Eclipse Public License v1.0" |
5 * under the terms of the License "Eclipse Public License v1.0" |
6 * which accompanies this distribution, and is available |
6 * which accompanies this distribution, and is available |
7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
51 } |
51 } |
52 |
52 |
53 void CCompressed::ConstructL(TInt64& aBytesRead, TReadTypeBehaviour aTypeReadBehaviour) |
53 void CCompressed::ConstructL(TInt64& aBytesRead, TReadTypeBehaviour aTypeReadBehaviour) |
54 { |
54 { |
55 CField::ConstructL(iDataProvider, EFieldTypeCompressed, aBytesRead, aTypeReadBehaviour); |
55 CField::ConstructL(iDataProvider, EFieldTypeCompressed, aBytesRead, aTypeReadBehaviour); |
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56 // Get the current offset |
56 User::LeaveIfError(iDataProvider.Seek(ESeekCurrent, iOffset)); |
57 User::LeaveIfError(iDataProvider.Seek(ESeekCurrent, iOffset)); |
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58 TInt64 fieldOffset = 0; |
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59 |
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60 #ifdef SIS_CRC_CHECK_ENABLED |
57 |
61 |
58 // Calculate CRC of header and field data |
62 // Calculate CRC of header and field data |
59 TInt64 fieldOffset = iOffset - HeaderSize(); |
63 fieldOffset = iOffset - HeaderSize(); |
60 User::LeaveIfError(iDataProvider.Seek(ESeekStart, fieldOffset)); |
64 User::LeaveIfError(iDataProvider.Seek(ESeekStart, fieldOffset)); |
61 CField::CalculateCrcL(iDataProvider, HeaderSize() + Length() + PaddingSize(), iCrc ); |
65 CField::CalculateCrcL(iDataProvider, HeaderSize() + Length() + PaddingSize(), iCrc ); |
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66 #else |
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67 fieldOffset = iOffset + Length() + PaddingSize(); |
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68 User::LeaveIfError(iDataProvider.Seek(ESeekStart, fieldOffset)); |
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69 #endif |
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70 |
62 aBytesRead += Length() + PaddingSize(); |
71 aBytesRead += Length() + PaddingSize(); |
63 } |
72 } |
64 |
73 |
65 |
74 |
66 MSisDataProvider& CCompressed::DataProviderL() |
75 MSisDataProvider& CCompressed::DataProviderL() |