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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 <ezstream.h> |
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17 |
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18 CEZZStream::CEZZStream() : iOutputPointer(NULL), iOutputBufferLength(0) |
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19 { |
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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 Set the stream's input buffer |
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25 |
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26 @param aInputData the input buffer for this stream |
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27 */ |
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28 EXPORT_C void CEZZStream::SetInput(const TDesC8& aInputData) |
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29 { |
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30 iStream.avail_in = aInputData.Size(); |
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31 iStream.next_in = STATIC_CAST(Bytef* ,CONST_CAST(TUint8 *,aInputData.Ptr())); |
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32 } |
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33 |
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34 /** |
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35 Set the stream's output buffer |
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36 |
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37 @param aOutputData the output buffer for this stream |
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38 */ |
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39 EXPORT_C void CEZZStream::SetOutput(TDes8& aOutputData) |
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40 { |
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41 iOutputPointer = STATIC_CAST(Bytef* ,CONST_CAST(TUint8 *,aOutputData.Ptr())); |
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42 iOutputBufferLength = aOutputData.MaxSize(); |
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43 iStream.avail_out = iOutputBufferLength; |
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44 iStream.next_out = iOutputPointer; |
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45 } |
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46 |
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47 /** |
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48 Return the progress of the current operation - that is the percentage of bytes written / read |
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49 |
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50 @param aTotalLength the total number of bytes to read / write |
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51 @return the progress as a percentage - the number of bytes written / read out of the total target |
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52 */ |
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53 EXPORT_C TInt CEZZStream::Progress(TInt aTotalLength) const |
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54 { |
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55 return (aTotalLength == 0) ? 100 : ((iStream.total_in * 100) / aTotalLength); |
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56 } |
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57 |
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58 /** |
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59 Return the total number of bytes output so far |
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60 |
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61 @return the total number of bytes output so far |
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62 */ |
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63 EXPORT_C TInt CEZZStream::TotalOut() const |
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64 { |
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65 return iStream.total_out; |
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66 } |
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67 |
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68 /** |
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69 Return the total number of input bytes read so far |
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70 |
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71 @return the total number of input bytes read so far |
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72 */ |
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73 EXPORT_C TInt CEZZStream::TotalIn() const |
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74 { |
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75 return iStream.total_in; |
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76 } |
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77 |
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78 /** |
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79 Return the value of the uncompressed data |
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80 |
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81 @return the value of the uncompressed data |
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82 */ |
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83 EXPORT_C TInt32 CEZZStream::Adler32() const |
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84 { |
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85 return iStream.adler; |
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86 } |
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87 |
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88 /** |
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89 Return the number of bytes available at the next input byte |
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90 |
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91 @return the number of bytes available at the next input byte |
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92 */ |
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93 EXPORT_C TInt CEZZStream::AvailIn() const |
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94 { |
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95 return iStream.avail_in; |
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96 } |
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97 |
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98 /** |
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99 Return the remaining free space at next output byte target |
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100 |
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101 @return the remaining free space at next output byte target |
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102 */ |
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103 EXPORT_C TInt CEZZStream::AvailOut() const |
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104 { |
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105 return iStream.avail_out; |
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106 } |
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107 |
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108 /** |
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109 Return a decriptor pointer to the output buffer |
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110 |
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111 @return a decriptor pointer to the output buffer |
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112 */ |
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113 EXPORT_C TPtrC8 CEZZStream::OutputDescriptor() const |
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114 { |
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115 return TPtrC8(iOutputPointer,iOutputBufferLength - iStream.avail_out); |
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116 } |
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117 |