fbs/fontandbitmapserver/sfbs/fbshelper.cpp
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     1 // Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
       
     2 // All rights reserved.
       
     3 // This component and the accompanying materials are made available
       
     4 // under the terms of "Eclipse Public License v1.0"
       
     5 // which accompanies this distribution, and is available
       
     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     7 //
       
     8 // Initial Contributors:
       
     9 // Nokia Corporation - initial contribution.
       
    10 //
       
    11 // Contributors:
       
    12 //
       
    13 // Description:
       
    14 //
       
    15 
       
    16 #include <e32uid.h>
       
    17 #include <e32svr.h>
       
    18 #include <u32hal.h>
       
    19 #include <fbs.h>
       
    20 #include "UTILS.H"
       
    21 #include "fbshelper.h"
       
    22 #include "fbsrasterizer.h"
       
    23 #include "fbsmessage.h"
       
    24 
       
    25 GLREF_C void Panic(TFbsPanic aPanic);
       
    26 
       
    27 
       
    28 CFbsSessionHelper::CFbsSessionHelper(RFbsSession& aFbs)
       
    29 	: CActive(CActive::EPriorityIdle), iFbs(aFbs)
       
    30 	{
       
    31 	if (CActiveScheduler::Current() != NULL)
       
    32 		CActiveScheduler::Add(this);
       
    33 #ifdef __WINS__
       
    34 	TUint8* rasterizerSetting = NULL;
       
    35 	UserSvr::HalFunction(EHalGroupEmulator, EEmulatorHalStringProperty, (TAny*)"FBSRASTERIZER_DLL", &rasterizerSetting);
       
    36 	if (rasterizerSetting)
       
    37 		{
       
    38 		TBuf<80> rasterizerName;
       
    39 		rasterizerName.Copy(TPtrC8(rasterizerSetting));
       
    40 		const TUidType KFbsRasterizerLibraryUidType(KDynamicLibraryUid, KSharedLibraryUid, KFbsRasterizerLibraryUid);
       
    41 		TInt err = iRasterizerLib.Load(rasterizerName, KFbsRasterizerLibraryUidType);
       
    42 		if (err == KErrNone)
       
    43 			{
       
    44 			CFbsRasterizer* (*create)() = reinterpret_cast<CFbsRasterizer*(*)()>(iRasterizerLib.Lookup(1));
       
    45 			iRasterizer = create();
       
    46 			}
       
    47 #ifdef _DEBUG
       
    48 		else
       
    49 			{
       
    50 			RDebug::Printf("Failed to load extended bitmap rasterizer %s\r\n", rasterizerSetting);
       
    51 			}
       
    52 #endif
       
    53 		}
       
    54 	// else do nothing, as rasterizer is optional
       
    55 #else
       
    56 	iRasterizer = CFbsRasterizer::New();
       
    57 #endif
       
    58 #ifdef SYMBIAN_DEBUG_FBS_LOCKHEAP
       
    59 	TInt err = iDebugMutex.OpenGlobal(KFBSERVDebugMutexName, EOwnerThread);
       
    60 	if (err != KErrNone)
       
    61 		Panic(EFbsPanicChunkError);
       
    62 #endif
       
    63 	}
       
    64 
       
    65 
       
    66 CFbsSessionHelper::~CFbsSessionHelper()
       
    67 	{
       
    68 	if (IsAdded())
       
    69 		Cancel();
       
    70 	iBitmaps.Reset();
       
    71 	delete iRasterizer;
       
    72 #ifdef __WINS__
       
    73 	iRasterizerLib.Close();
       
    74 #endif
       
    75 #ifdef SYMBIAN_DEBUG_FBS_LOCKHEAP
       
    76 	iDebugMutex.Close();
       
    77 #endif
       
    78 	delete iExtraBuffer;
       
    79 	}
       
    80 
       
    81 
       
    82 TInt CFbsSessionHelper::AddBitmap(CFbsBitmap& aBitmap)
       
    83 	{
       
    84 	if (IsAdded())
       
    85 		{
       
    86 		TInt err = iBitmaps.InsertInAddressOrder(&aBitmap);
       
    87 		if (err == KErrNone && !IsActive())
       
    88 			{
       
    89 			SetActive();
       
    90 			iFbs.SendCommand(EFbsMessBitmapNotifyDirty, TIpcArgs(), iStatus);
       
    91 			}
       
    92 		return err;
       
    93 		}
       
    94 	return KErrNone;
       
    95 	}
       
    96 
       
    97 
       
    98 void CFbsSessionHelper::RemoveBitmap(CFbsBitmap& aBitmap)
       
    99 	{
       
   100 	if (IsAdded())
       
   101 		{
       
   102 		TInt index = iBitmaps.FindInAddressOrder(&aBitmap);
       
   103 		if (index != KErrNotFound)
       
   104 			{
       
   105 			iBitmaps.Remove(index);
       
   106 			if (iBitmaps.Count() == 0)
       
   107 				Cancel();
       
   108 			}
       
   109 		}
       
   110 	}
       
   111 
       
   112 
       
   113 void CFbsSessionHelper::RunL()
       
   114 	{
       
   115 	if (iStatus == KErrNone && iBitmaps.Count() > 0)
       
   116 		{
       
   117 		for (TInt i = 0; i < iBitmaps.Count(); ++i)
       
   118 			(void)iBitmaps[i]->CleanAddress();
       
   119 		SetActive();
       
   120 		iFbs.SendCommand(EFbsMessBitmapNotifyDirty, TIpcArgs(), iStatus);
       
   121 		}
       
   122 	}
       
   123 
       
   124 
       
   125 void CFbsSessionHelper::DoCancel()
       
   126 	{
       
   127 	iFbs.SendCommand(EFbsMessBitmapCancelNotifyDirty);
       
   128 	}