1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/os/graphics/windowing/windowserver/nonnga/SERVER/offscreenbitmap.cpp Fri Jun 15 03:10:57 2012 +0200
1.3 @@ -0,0 +1,233 @@
1.4 +// Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies).
1.5 +// All rights reserved.
1.6 +// This component and the accompanying materials are made available
1.7 +// under the terms of "Eclipse Public License v1.0"
1.8 +// which accompanies this distribution, and is available
1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
1.10 +//
1.11 +// Initial Contributors:
1.12 +// Nokia Corporation - initial contribution.
1.13 +//
1.14 +// Contributors:
1.15 +//
1.16 +// Description:
1.17 +//
1.18 +
1.19 +#include "offscreenbitmap.h"
1.20 +#include "inifile.h"
1.21 +#include "panics.h"
1.22 +#include "ScrDev.H"
1.23 +#include "server.h"
1.24 +#include "wstop.h"
1.25 +#include "rootwin.h"
1.26 +#if defined(__WINS__) && defined(_DEBUG)
1.27 +#include "../../debuglog/osbwin.h"
1.28 +#endif
1.29 +
1.30 +GLREF_D TDisplayMode ParseDisplayMode(const TDesC& aModeName);
1.31 +
1.32 +CWsOffScreenBitmap* CWsOffScreenBitmap::NewL(CScreen* aScreen)
1.33 + {
1.34 + CWsOffScreenBitmap* self=new(ELeave) CWsOffScreenBitmap(aScreen);
1.35 + CleanupStack::PushL(self);
1.36 + self->ConstructL();
1.37 + CleanupStack::Pop(self);
1.38 + return self;
1.39 + }
1.40 +
1.41 +inline CWsOffScreenBitmap::CWsOffScreenBitmap(CScreen* aScreen) :iScreen(aScreen)
1.42 + {}
1.43 +
1.44 +CWsOffScreenBitmap::~CWsOffScreenBitmap()
1.45 + {
1.46 + delete iBitmapGc;
1.47 + delete iBitmap;
1.48 + iObserver = NULL;
1.49 +#if defined(__WINS__) && defined(_DEBUG)
1.50 + delete iOsbWin;
1.51 +#endif
1.52 + delete iBitmapDevice;
1.53 + }
1.54 +
1.55 +template <class T>
1.56 +LOCAL_C inline void Swap(T& aLeft, T& aRight)
1.57 + { T temp=aLeft;aLeft=aRight;aRight=temp;}
1.58 +template <class T>
1.59 +LOCAL_C inline TBool SwapIfLeftIsBigger(T& aLeft, T& aRight)
1.60 + {if (aLeft>aRight) { ::Swap(aLeft, aRight); return (aRight>aLeft);} return (aLeft>aRight);}
1.61 +
1.62 +void CWsOffScreenBitmap::ConstructL()
1.63 + {
1.64 + _LIT(KFlickerBufferMode,"FLICKERBUFFERMODE");
1.65 + TPtrC flickerBufferModeName;
1.66 + TDisplayMode displayMode = ENone;
1.67 + if (WsIniFile->FindVar(iScreen->ScreenNumber(), KFlickerBufferMode, flickerBufferModeName))
1.68 + displayMode = ParseDisplayMode(flickerBufferModeName);
1.69 + if (displayMode == ENone)
1.70 + displayMode = iScreen->DisplayMode();
1.71 +
1.72 + WS_ASSERT_DEBUG(displayMode!=ENone, EWsPanicNoDisplayModeFound);
1.73 + iBitmap=new(ELeave) CFbsBitmap;
1.74 + TSize screenSize=iScreen->ScreenDevice()->SizeInPixels();
1.75 + TBool haveSwapped=SwapIfLeftIsBigger(screenSize.iWidth, screenSize.iHeight);
1.76 + User::LeaveIfError(iBitmap->Create(screenSize,displayMode));
1.77 + if (haveSwapped)
1.78 + {
1.79 + iBitmap->SwapWidthAndHeight();
1.80 + }
1.81 + User::LeaveIfError(iBitmap->SetDisplayMode(iScreen->DisplayMode()));
1.82 + iBitmapDevice=CFbsBitmapDevice::NewL(iBitmap);
1.83 + User::LeaveIfError(iBitmapDevice->CreateContext(iBitmapGc));
1.84 +
1.85 + TSizeMode sizeMode = iScreen->ScreenSizeModeData(iScreen->ScreenSizeMode());
1.86 + TSize osbSize(iBitmap->SizeInPixels());
1.87 + TSize osbTwips(sizeMode.iScreenTwipsSize);
1.88 + if (osbSize!=sizeMode.iScreenSize)
1.89 + {
1.90 + // The specified screen twips size is for the specified screen pixel size, however the OSB
1.91 + // is potentially larger as it needs to hold the maximum possible screen size, so we need
1.92 + // to scale the twips size up correspondingly.
1.93 + osbTwips.iWidth=sizeMode.iScreenTwipsSize.iWidth*osbSize.iWidth/sizeMode.iScreenSize.iWidth;
1.94 + osbTwips.iHeight=sizeMode.iScreenTwipsSize.iHeight*osbSize.iHeight/sizeMode.iScreenSize.iHeight;
1.95 + }
1.96 + iBitmap->SetSizeInTwips(osbTwips);
1.97 +
1.98 +# if defined(__WINS__) && defined(_DEBUG)
1.99 + _LIT(KDebugOsb,"DEBUGOSB");
1.100 + if (WsIniFile->FindVar(iScreen->ScreenNumber(),KDebugOsb))
1.101 + {
1.102 + _LIT(KDebugOsbTitleFormat, "Screen %d, offscreen bitmap");
1.103 + TBuf<32> title;
1.104 + title.Format(KDebugOsbTitleFormat, iScreen->ScreenNumber());
1.105 + iOsbWin = CDebugOsbWin::NewL(title, iBitmap->SizeInPixels());
1.106 + }
1.107 +# endif
1.108 + }
1.109 +
1.110 +TInt CWsOffScreenBitmap::DisplayModeChanged(TBool aSwapWidthAndHeight)
1.111 + {
1.112 + TInt err=KErrNone;
1.113 + if (aSwapWidthAndHeight)
1.114 + {
1.115 + err=iBitmapDevice->SwapWidthAndHeight();
1.116 + WS_ASSERT_DEBUG(err==KErrNone, EWsCreatedOffScreenBitmapInWrongDimensions);
1.117 + iBitmapGc->Activate(iBitmapDevice);
1.118 + }
1.119 + return err;
1.120 + }
1.121 +
1.122 +void CWsOffScreenBitmap::SetObserver(MWsFlickerFreeBufferObserver* aObserver)
1.123 + {
1.124 + iObserver = aObserver;
1.125 + }
1.126 +
1.127 +MWsFlickerFreeBufferObserver * CWsOffScreenBitmap::Observer()
1.128 + {
1.129 + return iObserver;
1.130 + }
1.131 +
1.132 +CFbsBitmap* CWsOffScreenBitmap::Bitmap()
1.133 + {
1.134 + CFbsBitmap* bmp = iRedirectBuffer? iRedirectBuffer->GetBitmap() : iBitmap;
1.135 + WS_ASSERT_DEBUG(bmp!=NULL, EWsPanicTemp);
1.136 + return bmp;
1.137 + }
1.138 +
1.139 +CFbsDevice* CWsOffScreenBitmap::BitmapDevice()
1.140 + {
1.141 + CFbsDevice* device = static_cast<CFbsDevice*>(GetBitGcCurrent()->Device());
1.142 + WS_ASSERT_DEBUG(device!=NULL, EWsPanicNullDeviceHandle);
1.143 + return device;
1.144 + }
1.145 +
1.146 +// This function updates the OffScreenBitmap and TransparencyManager's device and GC
1.147 +// Note: Here the OffScreenBitmap's scale is not considered.
1.148 +void CWsOffScreenBitmap::UpdateGc(const TBool aSwapWidthAndHeight)
1.149 + {
1.150 + if (aSwapWidthAndHeight)
1.151 + {
1.152 + iBitmapDevice->SwapWidthAndHeight();
1.153 + }
1.154 + iBitmapDevice->SetScalingFactor(iScreen->CurrentScreenModeScaledOrigin(),1,1,1,1);
1.155 + iBitmapGc->Activate(iBitmapDevice);
1.156 + }
1.157 +
1.158 +#if defined(__WINS__) && defined(_DEBUG)
1.159 +void CWsOffScreenBitmap::Update()
1.160 + {
1.161 + if (iOsbWin)
1.162 + {
1.163 + iBitmap->LockHeap();
1.164 + iOsbWin->Refresh(iBitmap->SizeInPixels(), iBitmap->DisplayMode(), iBitmap->DataAddress());
1.165 + iBitmap->UnlockHeap();
1.166 + }
1.167 + }
1.168 +#endif
1.169 +
1.170 +/**
1.171 + Implementing MWsBackBuffer interface
1.172 +*/
1.173 +CFbsBitmap* CWsOffScreenBitmap::GetBitmap()
1.174 + {
1.175 + return iBitmap;
1.176 + }
1.177 +
1.178 +CFbsBitGc* CWsOffScreenBitmap::GetBitGc()
1.179 + {
1.180 + return iBitmapGc;
1.181 + }
1.182 +
1.183 +CFbsBitGc* CWsOffScreenBitmap::GetBitGcCurrent()
1.184 + {
1.185 + CFbsBitGc* gc = iRedirectGc? iRedirectGc : (iRedirectBuffer? iRedirectBuffer->GetBitGc() : iBitmapGc);
1.186 + WS_ASSERT_DEBUG(gc!=NULL, EWsPanicTemp);
1.187 + return gc;
1.188 + }
1.189 +
1.190 +TInt CWsOffScreenBitmap::SetBitGc(CFbsBitGc* aBitGc)
1.191 + {
1.192 + if (iRedirectBuffer)
1.193 + return KErrInUse;
1.194 +
1.195 + if (aBitGc && (aBitGc==iBitmapGc || aBitGc==iRedirectGc))
1.196 + return KErrAlreadyExists;
1.197 +
1.198 + if (aBitGc && !aBitGc->Device())
1.199 + return KErrArgument;
1.200 +
1.201 + iRedirectGc = aBitGc;
1.202 + return KErrNone;
1.203 + }
1.204 +
1.205 +TInt CWsOffScreenBitmap::RedirectTo(MWsBackBuffer* aTarget)
1.206 + {
1.207 + if (iRedirectGc)
1.208 + return KErrInUse;
1.209 +
1.210 + if (aTarget && aTarget==iRedirectBuffer)
1.211 + return KErrAlreadyExists;
1.212 +
1.213 + if ( aTarget && iScreen->HasVisibleDirectOnQueue() )
1.214 + return KErrInUse;
1.215 + if (aTarget &&
1.216 + (
1.217 + !aTarget->GetBitmap()||
1.218 + !aTarget->GetBitGc() ||
1.219 + (aTarget->GetBitGc() && !aTarget->GetBitGc()->Device())
1.220 + )
1.221 + )
1.222 + return KErrArgument;
1.223 +
1.224 + iRedirectBuffer = aTarget;
1.225 + return KErrNone;
1.226 + }
1.227 +
1.228 +TAny* CWsOffScreenBitmap::ResolveObjectInterface(TUint aTypeId)
1.229 + {
1.230 + switch (aTypeId)
1.231 + {
1.232 + case MWsBackBuffer::EWsObjectInterfaceId:
1.233 + return static_cast<MWsBackBuffer *>(this);
1.234 + }
1.235 + return NULL;
1.236 + }