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1 /* |
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2 * Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: Video Source subsystem. |
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15 * |
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16 */ |
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17 |
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18 #ifndef C_MULTIFRAMEDATAAO_H |
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19 #define C_MULTIFRAMEDATAAO_H |
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20 |
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21 // INCLUDE FILES |
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22 #include <e32base.h> |
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23 #include "mmultiframeprovider.h" |
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24 // FORWARD DECLARATIONS |
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25 class CMultiframeProvider; |
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26 |
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27 // MACROS |
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28 |
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29 /** |
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30 * @lib videosource.lib |
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31 */ |
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32 // ============================ CMultiframeDataAO =============================== |
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33 NONSHARABLE_CLASS( CMultiframeDataAO ) : public CTimer |
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34 { |
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35 public: // Constructors and destructor |
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36 |
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37 /** |
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38 * Constructor. |
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39 * @param "aRequester" instance to requester |
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40 */ |
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41 CMultiframeDataAO( CMultiframeProvider* aRequester ); |
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42 |
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43 /** |
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44 * Destructor. |
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45 */ |
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46 ~CMultiframeDataAO(); |
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47 |
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48 public: // New functions |
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49 |
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50 /** |
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51 * Sets observer. |
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52 * @param "aObserever" instance to observer |
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53 */ |
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54 void SetObserver( MMultiframeprovider* aObserver ); |
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55 |
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56 /** |
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57 * Activates CTimer |
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58 * @param "aUpdateTime" expiration time |
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59 */ |
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60 void Activate( TTimeIntervalMicroSeconds aUpdateTime, TBool aInit, TBool aVFUpdate ); |
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61 |
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62 /** |
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63 * Updates local buffer. |
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64 * @param "aLocalBuffer" local buffer |
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65 */ |
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66 void LocalBuffer( CVtImageBitmap* aLocalBuffer ); |
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67 |
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68 /** |
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69 * Updates remote buffer. |
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70 * @param "aRemoteBuffer" remote buffer |
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71 */ |
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72 void RemoteBuffer ( CVtImageBitmap* aRemoteBuffer ); |
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73 |
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74 /** |
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75 * Cancels looping and completes request in correct thread. |
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76 */ |
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77 void CancelTimeLoop(); |
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78 |
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79 private: // Functions from base classes |
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80 |
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81 /** |
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82 * From CActive. See CActive for description. |
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83 */ |
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84 void RunL(); |
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85 |
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86 private: // Data |
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87 |
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88 // Pointer to observer. |
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89 MMultiframeprovider* iObserver; // not owned |
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90 |
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91 // Pointer to requester |
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92 CMultiframeProvider* iRequester; |
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93 |
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94 // For updating ViewFinder buffer |
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95 TImageShareDataBuffer iLocalBuffer; |
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96 // For updating remote buffer |
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97 TImageShareDataBuffer iRemoteBuffer; |
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98 |
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99 // For updating remote buffer if activated when active |
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100 TImageShareDataBuffer iRemoteSecondBuffer; |
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101 |
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102 // For updating ViewFinder buffer if activated when active |
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103 TImageShareDataBuffer iLocalSecondBuffer; |
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104 |
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105 // Initialization flag |
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106 TBool iInit; |
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107 |
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108 // Delta calc ref point |
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109 TTimeIntervalMicroSeconds iTime; |
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110 |
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111 // VF update flag |
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112 TBool iVFUpdate; |
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113 |
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114 // Id of thread whose active scheduler this instance is added into. |
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115 TThreadId iThreadId; |
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116 |
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117 // A flag to indecate loop ao must be stopped |
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118 TBool iRequireStopping; |
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119 }; |
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120 |
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121 #endif //C_MULTIFRAMEDATAAO_H |
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122 |
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123 // End of File |
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124 |
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125 |
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126 |
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127 |
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128 |