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1 // Copyright (c) 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 // Graphics Resource - logical device driver internal functionality |
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15 // |
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16 |
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17 #ifndef SGDEVICEIMPL_H |
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18 #define SGDEVICEIMPL_H |
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19 |
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20 #include <kernel/kernel.h> |
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21 #include <sgresource/sgdevice.h> |
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22 |
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23 enum TSgDevicePanicReason |
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24 { |
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25 ESgPanicMetaDataSizeTooBig = 1, |
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26 ESgPanicDataSizeNegative = 2 |
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27 }; |
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28 |
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29 void Panic(TSgDevicePanicReason aReason); |
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30 |
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31 class DSgDevice: public DLogicalDevice |
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32 { |
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33 public: |
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34 // From DLogicalDevice |
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35 TInt Install(); |
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36 void GetCaps(TDes8& aDes) const; |
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37 TInt Create(DLogicalChannelBase*& aChannel); |
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38 }; |
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39 |
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40 class DSgResource; |
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41 |
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42 class DSgChannel: public DLogicalChannelBase |
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43 { |
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44 public: |
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45 ~DSgChannel(); |
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46 // From DLogicalChannelBase |
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47 TInt DoCreate(TInt aUnit, const TDesC8* aInfo, const TVersion& aVersion); |
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48 TInt Request(TInt aFunction, TAny* a1, TAny* a2); |
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49 private: |
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50 TInt CreateResource(TUint32 aAttribs, const TDesC8& aMetaData, TInt aDataSize, TUint64& aId); |
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51 TInt OpenResource(TUint64 aId); |
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52 TInt CloseResource(TUint64 aId); |
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53 TUint32 ResourceAttributes(TUint64 aId) const; |
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54 TInt GetResourceMetaData(TUint64 aId, TDes8& aMetaData) const; |
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55 TAny* ResourceDataAddress(TUint64 aId) const; |
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56 TInt ResourceDataSize(TUint64 aId) const; |
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57 TInt GlobalResourceCount() const; |
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58 TInt LocalGraphicsMemoryUsed() const; |
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59 TInt GlobalGraphicsMemoryUsed() const; |
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60 private: |
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61 class TResourceListItem |
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62 { |
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63 public: |
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64 TResourceListItem(DSgResource* aResource, TInt aChunkHandle); |
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65 public: |
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66 DSgResource* iResource; |
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67 TInt iChunkHandle; |
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68 }; |
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69 private: |
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70 static TInt Compare(const TUint64* aId, const TResourceListItem& aResourceListItem); |
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71 static TInt Compare(const TResourceListItem& aResourceListItem1, const TResourceListItem& aResourceListItem2); |
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72 private: |
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73 DMutex* iMutex; |
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74 RArray<TResourceListItem> iResources; |
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75 }; |
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76 |
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77 #endif // SGDEVICEIMPL_H |