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1 // Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // |
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15 |
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16 #include "OldEZstream.h" |
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17 using namespace TOLDEZLIB; |
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18 |
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19 CEZZStream::CEZZStream() : iOutputPointer(NULL), iOutputBufferLength(0) |
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20 { |
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21 |
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22 } |
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23 |
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24 /** |
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25 Set the stream's input buffer |
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26 |
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27 @param aInputData the input buffer for this stream |
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28 */ |
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29 EXPORT_C void CEZZStream::SetInput(const TDesC8& aInputData) |
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30 { |
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31 iStream.avail_in = aInputData.Size(); |
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32 iStream.next_in = STATIC_CAST(Bytef* ,CONST_CAST(TUint8 *,aInputData.Ptr())); |
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33 } |
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34 |
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35 /** |
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36 Set the stream's output buffer |
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37 |
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38 @param aOutputData the output buffer for this stream |
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39 */ |
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40 EXPORT_C void CEZZStream::SetOutput(TDes8& aOutputData) |
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41 { |
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42 iOutputPointer = STATIC_CAST(Bytef* ,CONST_CAST(TUint8 *,aOutputData.Ptr())); |
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43 iOutputBufferLength = aOutputData.MaxSize(); |
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44 iStream.avail_out = iOutputBufferLength; |
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45 iStream.next_out = iOutputPointer; |
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46 } |
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47 |
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48 /** |
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49 Return the progress of the current operation - that is the percentage of bytes written / read |
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50 |
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51 @param aTotalLength the total number of bytes to read / write |
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52 @return the progress as a percentage - the number of bytes written / read out of the total target |
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53 */ |
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54 EXPORT_C TInt CEZZStream::Progress(TInt aTotalLength) const |
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55 { |
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56 return (aTotalLength == 0) ? 100 : ((iStream.total_in * 100) / aTotalLength); |
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57 } |
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58 |
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59 /** |
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60 Return the total number of bytes output so far |
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61 |
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62 @return the total number of bytes output so far |
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63 */ |
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64 EXPORT_C TInt CEZZStream::TotalOut() const |
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65 { |
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66 return iStream.total_out; |
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67 } |
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68 |
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69 /** |
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70 Return the total number of input bytes read so far |
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71 |
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72 @return the total number of input bytes read so far |
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73 */ |
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74 EXPORT_C TInt CEZZStream::TotalIn() const |
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75 { |
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76 return iStream.total_in; |
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77 } |
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78 |
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79 /** |
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80 Return the value of the uncompressed data |
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81 |
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82 @return the value of the uncompressed data |
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83 */ |
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84 EXPORT_C TInt32 CEZZStream::Adler32() const |
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85 { |
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86 return iStream.adler; |
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87 } |
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88 |
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89 /** |
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90 Return the number of bytes available at the next input byte |
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91 |
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92 @return the number of bytes available at the next input byte |
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93 */ |
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94 EXPORT_C TInt CEZZStream::AvailIn() const |
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95 { |
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96 return iStream.avail_in; |
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97 } |
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98 |
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99 /** |
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100 Return the remaining free space at next output byte target |
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101 |
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102 @return the remaining free space at next output byte target |
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103 */ |
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104 EXPORT_C TInt CEZZStream::AvailOut() const |
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105 { |
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106 return iStream.avail_out; |
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107 } |
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108 |
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109 /** |
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110 Return a decriptor pointer to the output buffer |
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111 |
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112 @return a decriptor pointer to the output buffer |
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113 */ |
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114 EXPORT_C TPtrC8 CEZZStream::OutputDescriptor() const |
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115 { |
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116 return TPtrC8(iOutputPointer,iOutputBufferLength - iStream.avail_out); |
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117 } |
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118 |