1 /* |
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2 * Copyright (c) 2007 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: Reference counting wrapper for MCameraBuffer. |
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15 * |
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16 */ |
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17 |
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18 |
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19 #ifndef CAM_BUFFERSHARE_H |
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20 #define CAM_BUFFERSHARE_H |
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21 |
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22 #include <e32base.h> |
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23 |
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24 |
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25 class MCameraBuffer; |
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26 |
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27 class CCamBufferShare : public CBase |
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28 { |
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29 // ======================================================= |
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30 // Methods |
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31 |
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32 // ------------------------------------------------------- |
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33 // Constructor and destructor |
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34 public: |
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35 |
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36 /** |
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37 * This is just a wrapper class => c++ constructor |
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38 */ |
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39 CCamBufferShare( MCameraBuffer* aSharedBuffer ); |
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40 |
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41 private: |
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42 |
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43 /** |
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44 * Reference counting used, so destructor is private. |
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45 */ |
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46 ~CCamBufferShare(); |
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47 |
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48 // ------------------------------------------------------- |
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49 // Other methods |
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50 public: |
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51 |
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52 /** |
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53 * Get the shared buffer. Ownership not given to caller. |
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54 */ |
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55 MCameraBuffer* SharedBuffer(); |
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56 |
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57 /** |
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58 * Reserve a reference to this share. |
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59 */ |
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60 void Reserve(); |
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61 |
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62 /** |
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63 * Release a reference to this share. |
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64 */ |
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65 void Release(); |
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66 |
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67 #ifdef _DEBUG |
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68 /** |
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69 * Get the amount of used buffers in total. |
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70 */ |
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71 static TInt TotalBufferShareCount(); |
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72 #endif |
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73 |
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74 // ======================================================= |
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75 // Data |
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76 protected: |
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77 |
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78 #ifdef _DEBUG |
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79 static TInt isTotalBufferCount; |
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80 #endif |
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81 |
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82 private: |
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83 |
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84 MCameraBuffer* iSharedBuffer; |
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85 TInt iReferenceCount; |
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86 |
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87 // ======================================================= |
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88 }; |
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89 |
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90 #endif |
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91 |
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92 // end of file |
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93 |
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