diff -r 000000000000 -r bde4ae8d615e os/graphics/windowing/windowserver/nonnga/SERVER/scrdev.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/os/graphics/windowing/windowserver/nonnga/SERVER/scrdev.cpp	Fri Jun 15 03:10:57 2012 +0200
@@ -0,0 +1,517 @@
+// Copyright (c) 1995-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+// Screen device
+// 
+//
+
+#include "ScrDev.H"
+#include "Direct.H"
+
+#include <e32hal.h>
+#include <hal.h>
+#include "server.h"
+#include "gc.h"
+#include "rootwin.h"
+#include "windowgroup.h"
+#include "wstop.h"
+#include "EVENT.H"
+#include "panics.h"
+#include "../CLIENT/w32comm.h"
+#include <w32std.h>
+
+const TInt KEikSrvsSid=0x10003a4a;
+
+static _LIT_SECURITY_POLICY_C1(KSecurityPolicy_WriteDeviceData,ECapabilityWriteDeviceData);
+	
+/*DWsScreenDevice*/
+
+DWsScreenDevice::DWsScreenDevice(CWsClient* aOwner, TInt aDefaultScreenNumber, TUint aClientScreenDevicePointer) 
+		: CWsScreenObject(aOwner, WS_HANDLE_SCREEN_DEVICE, CWsTop::Screen( aDefaultScreenNumber )), 
+		  iClientScreenDevicePointer(aClientScreenDevicePointer)
+	{}
+
+DWsScreenDevice::~DWsScreenDevice()
+	{}
+
+void DWsScreenDevice::CopyScreenToBitmapL(const TRect &aRect, TInt aHandle)
+	{
+	CFbsBitmap *bitmap=new(ELeave) CFbsBitmap();
+	CleanupStack::PushL(bitmap);
+	TInt ret = bitmap->Duplicate(aHandle);
+	if (ret == KErrNoMemory)
+		{
+		User::Leave(ret);
+		}
+	if (ret != KErrNone)
+		OwnerPanic(EWservPanicBitmap);
+
+	CFbsBitmapDevice *device=CFbsBitmapDevice::NewL(bitmap);
+	CleanupStack::PushL(device);
+	CFbsBitGc *gc;
+	User::LeaveIfError(device->CreateContext(gc));
+	CleanupStack::PushL(gc);			//Don't need to push this, but this is probably the eaiest way to delete it
+	gc->SetDrawMode( CGraphicsContext::EDrawModeWriteAlpha );
+	gc->BitBlt(TPoint(), *iScreen->ScreenGdi(), aRect);
+	CleanupStack::PopAndDestroy(3);
+	}
+
+void DWsScreenDevice::CommandL(TInt aOpcode, const TAny *aCmdData)
+	{
+	TWsSdCmdUnion pData;
+	pData.any=aCmdData;
+	switch(aOpcode)
+		{
+		case EWsSdOpGetNumScreenModes:
+			SetReply(iScreen->NumScreenSizeModes());
+			break;
+		case EWsSdOpGetScreenMode:
+			SetReply(iScreen->ScreenSizeMode());
+			break;
+		case EWsSdOpSetScreenMode:
+			{
+			if(!KSecurityPolicy_WriteDeviceData().CheckPolicy(iWsOwner->ClientMessage(),__PLATSEC_DIAGNOSTIC_STRING("Capability check failed for CWsScreenDevice::SetScreenMode API")))
+				{
+				iWsOwner->PPanic(EWservPanicPermissionDenied);
+				}
+			SetScreenMode(*pData.Int);
+			}
+			break;
+		case EWsSdOpSetModeRotation:
+			{
+			if(KSecurityPolicy_WriteDeviceData().CheckPolicy(iWsOwner->ClientMessage(),__PLATSEC_DIAGNOSTIC_STRING("Capability check failed for CWsScreenDevice::SetModeRotation API")))
+				{
+				TClientPanic panic=iScreen->SetModeRotation(pData.SetScreenRotation->mode,pData.SetScreenRotation->rotation);
+				if (panic)
+					OwnerPanic(panic);
+				}
+			}
+			break;
+		case EWsSdOpGetRotationList:
+			if (!iScreen->IsValidScreenSizeMode(*pData.Int))
+				OwnerPanic(EWservPanicScreenModeNumber);
+			SetReply(iScreen->ScreenSizeModeData(*pData.Int).iAlternativeRotations);
+			break;
+		case EWsSdOpGetScreenModeSizeAndRotation:
+			GetScreenSizeAndRotationCmd(*pData.Int);
+			break;
+		case EWsSdOpGetScreenModeSizeAndRotation2:
+			GetScreenSizeAndRotationCmd2(*pData.Int);
+			break;
+		case EWsSdOpSetScreenSizeAndRotation:
+			SetScreenSizeAndRotation(*pData.PixelsTwipsAndRotation);
+			break;
+		case EWsSdOpSetScreenSizeAndRotation2:
+			SetScreenSizeAndRotation(*pData.PixelsAndRotation);
+			break;
+		case EWsSdOpGetDefaultScreenSizeAndRotation:
+			GetScreenSizeAndRotationCmd(iScreen->ScreenSizeMode());
+			break;
+		case EWsSdOpGetDefaultScreenSizeAndRotation2:
+			GetScreenSizeAndRotationCmd2(iScreen->ScreenSizeMode());
+			break;
+		case EWsSdOpGetScreenModeDisplayMode:
+			GetScreenModeDisplayMode(*pData.Int);
+			break;
+		case EWsSdOpGetScreenModeScale:
+			GetScreenScale(*pData.Int);
+			break;
+		case EWsSdOpGetCurrentScreenModeScale:
+			GetScreenScale(iScreen->ScreenSizeMode());
+			break;
+		case EWsSdOpSetAppScreenMode:
+			SetAppScreenMode(*pData.Int);
+			break;
+		case EWsSdOpGetCurrentScreenModeScaledOrigin:
+			CWsClient::ReplyPoint(iScreen->CurrentScreenModeScaledOrigin());
+			break;
+		case EWsSdOpGetScreenModeScaledOrigin:
+			if (!iScreen->IsValidScreenSizeMode(*pData.Int))
+				OwnerPanic(EWservPanicScreenModeNumber);
+			CWsClient::ReplyPoint(iScreen->ScreenModeScaledOrigin(*pData.Int));
+			break;
+		case EWsSdOpGetCurrentScreenModeAttributes:
+			GetCurrentScreenModeAttributes();
+			break;
+		case EWsSdOpSetCurrentScreenModeAttributes:
+			if(!KSecurityPolicy_WriteDeviceData().CheckPolicy(iWsOwner->ClientMessage(),__PLATSEC_DIAGNOSTIC_STRING("Capability check failed for CWsScreenDevice::SetCurrentScreenModeAttributes API, API should be used for test purposes only")))
+				{
+				iWsOwner->PPanic(EWservPanicPermissionDenied);
+				}
+			SetCurrentScreenModeAttributes(*pData.ScreenSizeMode);
+			break;
+		case EWsSdOpSetScreenModeEnforcement:
+			{
+			if(!KSecurityPolicy_WriteDeviceData().CheckPolicy(iWsOwner->ClientMessage(),__PLATSEC_DIAGNOSTIC_STRING("Capability check failed for CWsScreenDevice::SetScreenModeEnforcement API")))
+				{
+				iWsOwner->PPanic(EWservPanicPermissionDenied);
+				}
+			if (!iScreen->SetScreenModeEnforcement(*pData.Int))
+				OwnerPanic(EWservPanicScreenEnforcementMode);
+			}
+			break;
+		case EWsSdOpScreenModeEnforcement:
+			SetReply(iScreen->SizeEnforcementMode());
+			break;
+		case EWsSdOpGetDefaultScreenModeOrigin:
+			GetScreenModeOriginCmd(iScreen->ScreenSizeMode());
+			break;
+		case EWsSdOpGetScreenModeOrigin:
+			GetScreenModeOriginCmd(*pData.Int);
+			break;
+		case EWsSdOpPixel:
+			{
+			TRgb rgb;
+			iScreen->ScreenDevice()->GetPixel(rgb,*pData.Point);
+			SetReply(rgb.Internal());
+			}
+			break;
+		case EWsSdOpGetScanLine:
+			iScreen->GetScanLine(pData.GetScanLine);
+			break;
+		case EWsSdOpTwipsSize:
+			CWsClient::ReplySize(iAppScreenSizeInTwips);
+			break;
+		case EWsSdOpPixelSize:
+			CWsClient::ReplySize(iAppScreenSizeInPixels);
+			break;
+		case EWsSdOpHorizontalTwipsToPixels:
+			SetReply(iScreen->ScreenDevice()->HorizontalTwipsToPixels(*pData.UInt));
+			break;
+		case EWsSdOpVerticalTwipsToPixels:
+			SetReply(iScreen->ScreenDevice()->VerticalTwipsToPixels(*pData.UInt));
+			break;
+		case EWsSdOpHorizontalPixelsToTwips:
+			SetReply(iScreen->ScreenDevice()->HorizontalPixelsToTwips(*pData.UInt));
+			break;
+		case EWsSdOpVerticalPixelsToTwips:
+			SetReply(iScreen->ScreenDevice()->VerticalPixelsToTwips(*pData.UInt));
+			break;
+		case EWsSdOpPointerRect:
+			{
+			TMachineInfoV1Buf macInfo;
+			UserHal::MachineInfo(macInfo);
+			TRect rect(-macInfo().iOffsetToDisplayInPixels,macInfo().iXYInputSizeInPixels);
+			CWsClient::ReplyRect(rect);
+			}
+			break;
+		case EWsSdOpFree:
+			{
+			// Mark any group windows associated with the screen device being deleted
+			CWsRootWindow* root=iScreen->RootWindow();
+			for (CWsWindowGroup* grp = root->Child(); grp; grp = grp->NextSibling())
+				{
+				if (grp->Device() == this)
+					{
+#if defined(_DEBUG)
+ 					grp->SetScreenDeviceDeleted();
+#endif
+					grp->SetScreenDevice(NULL);
+					}
+				}
+			}
+			// Let our owner (CWsClient) know that a screen device is being deleted so it
+			// can check whether to reset its iPrimaryScreenDevice member or not
+   			if (WsOwner())	
+ 				WsOwner()->NotifyScreenDeviceDeleted(this);
+			delete this;
+			break;
+		case EWsSdOpDisplayMode:
+			iScreen->ScreenGdi();	// To force display mode update if required
+			SetReply(iScreen->CurrentDisplayMode());
+			break;
+		case EWsSdOpRectCompare:
+			{
+//			if (pData.RectCompare->flags&CWsScreenDevice::EIncludeSprite)
+//				{
+//				SpriteManager()->IncrementProcessingSprites();
+//				}
+
+			RWsTextCursor * cursor = 0;
+			if (!pData.RectCompare->flags&CWsScreenDevice::EIncludeTextCursor)	
+				cursor = CWsTop::CurrentTextCursor();
+			if (cursor)
+				cursor->Disable();
+			
+			SetReply(iScreen->ScreenDevice()->RectCompare(pData.RectCompare->rect1,*iScreen->ScreenDevice(),pData.RectCompare->rect2));
+
+			if (cursor)
+				cursor->Enable();
+			
+//			if (pData.RectCompare->flags&CWsScreenDevice::EIncludeSprite)
+//				{
+//				SpriteManager()->DecrementProcessingSprites();
+//				}
+			}
+			break;
+		case EWsSdOpCopyScreenToBitmap:
+			CopyScreenToBitmapL(TRect(iScreen->ScreenDevice()->SizeInPixels()),pData.CopyScreenToBitmap->handle);
+			break;
+		case EWsSdOpCopyScreenToBitmap2:
+			CopyScreenToBitmapL(pData.CopyScreenToBitmap2->rect,pData.CopyScreenToBitmap2->handle);
+			break;
+		case EWsSdOpPaletteAttributes:
+			{
+			TBool modifiable;
+			TInt numEntries;
+			iScreen->ScreenDevice()->PaletteAttributes(modifiable,numEntries);
+			if (modifiable)
+				numEntries|=EWsSdSetableBitFlag;
+			SetReply(numEntries);
+			}
+			break;
+		case EWsSdOpSetPalette:
+			{
+			if(!KSecurityPolicy_WriteDeviceData().CheckPolicy(iWsOwner->ClientMessage(),__PLATSEC_DIAGNOSTIC_STRING("Capability check failed for CWsScreenDevice::SetPalette API")))
+				{
+				User::Leave(KErrPermissionDenied);
+				}
+			SetPaletteL();
+			}
+			break;
+		case EWsSdOpGetPalette:
+			GetPalette(*pData.Int);
+			break;
+			
+		case EWsSdOpGetScreenNumber:
+			SetReply(iScreen->ScreenNumber());
+			break;
+		case EWsSdOpGetScreenSizeModeList:
+			SetReply(iScreen->GetScreenSizeModeListL());
+			break;
+		case EWsClOpSetBackLight:
+			{
+			TInt err=KErrNone;
+			if(Screen()->BackLightFlag() && iWsOwner->ClientMessage().SecureId()==KEikSrvsSid)
+				{
+				TWindowServerEvent::ProcessErrorMessages(TWsErrorMessage::EBackLight, err=HAL::Set(iScreen->ScreenNumber(),HALData::EBacklightState,*pData.Int));
+				SetReply(err);
+				}
+			else
+				{
+				User::Leave(KErrPermissionDenied);				
+				}
+			}
+			break;
+		default:
+			OwnerPanic(EWservPanicOpcode);
+			break;
+		}
+	}
+
+
+void DWsScreenDevice::SetScreenMode(TInt aMode)
+	{
+	if (!iScreen->IsValidScreenSizeMode(aMode))
+		OwnerPanic(EWservPanicScreenModeNumber);
+	iScreen->doSetScreenMode(aMode);
+	}
+
+TBool DWsScreenDevice::ScreenDeviceValidState() const
+	{
+	WS_ASSERT_DEBUG(iScreen->IsValidScreenSizeMode(iScreen->ScreenSizeMode()), EWsPanicInvalidScreenSizeMode);
+	const TSizeMode& currentMode=iScreen->ScreenSizeModeData();
+	TBool state=ETrue;
+	// In all enforcement modes scale should match, so check scale first
+	if (currentMode.iScreenScale!=iAppScale)
+		{
+		state=EFalse;
+		}
+	else
+		{
+		if (iScreen->SizeEnforcementMode()!=ESizeEnforcementNone)
+			{
+			if (currentMode.iRotation!=iAppRotation)
+				state=EFalse;
+			else if (currentMode.iScreenSize!=iAppScreenSizeInPixels)
+				state=EFalse;
+			}
+		if (iScreen->SizeEnforcementMode()==ESizeEnforcementPixelsTwipsAndRotation)
+			{
+			if (currentMode.iScreenTwipsSize!=iAppScreenSizeInTwips)
+				state=EFalse;
+			}
+		}
+	return(state);
+	}
+
+void DWsScreenDevice::ConstructL()
+//
+// App specific construct
+//
+	{
+	NewObjL();
+	const TSizeMode& mode=iScreen->ScreenSizeModeData(iScreen->ScreenSizeMode());
+	iAppScreenSizeInPixels=mode.iScreenSize;
+	iAppScreenSizeInTwips=mode.iScreenTwipsSize;
+	iAppRotation=mode.iRotation;
+	iAppMode=iScreen->ScreenSizeMode();
+	iAppScale=mode.iScreenScale;
+	}
+
+void DWsScreenDevice::SetScreenSizeAndRotation(const TPixelsTwipsAndRotation &aSar)
+	{
+	iAppScreenSizeInPixels=aSar.iPixelSize;
+	iAppScreenSizeInTwips=aSar.iTwipsSize;
+	iAppRotation=aSar.iRotation;
+	SetScreenDeviceValidStates(this);
+	}
+
+void DWsScreenDevice::SetScreenSizeAndRotation(const TPixelsAndRotation &aSar)
+	{
+	iAppScreenSizeInPixels=aSar.iPixelSize;
+	iAppScreenSizeInTwips.iWidth=iScreen->ScreenDevice()->HorizontalPixelsToTwips(iAppScreenSizeInPixels.iWidth);
+	iAppScreenSizeInTwips.iHeight=iScreen->ScreenDevice()->VerticalPixelsToTwips(iAppScreenSizeInPixels.iHeight);
+	iAppRotation=aSar.iRotation;
+	SetScreenDeviceValidStates(this);
+	}
+
+void DWsScreenDevice::GetScreenModeOriginCmd(TInt aMode)
+	{
+	if (!iScreen->IsValidScreenSizeMode(aMode))
+		OwnerPanic(EWservPanicScreenModeNumber);
+	CWsClient::ReplyPoint(iScreen->ScreenModeOrigin(aMode));
+	}
+
+void DWsScreenDevice::GetCurrentScreenModeAttributes()
+	{
+	TSizeMode aModeData=iScreen->ScreenSizeModeData();
+	CWsClient::ReplyBuf(&aModeData,sizeof(aModeData));
+	}
+
+void DWsScreenDevice::SetCurrentScreenModeAttributes(const TSizeMode &aModeData)
+	{
+#if defined(_DEBUG)
+	if (aModeData.iScreenScale.iWidth==0 || aModeData.iScreenScale.iHeight==0)
+		OwnerPanic(EWservPanicScreenModeNumber);
+#endif
+	iScreen->SetCurrentScreenModeAttributes(aModeData);
+	}
+
+void DWsScreenDevice::GetScreenSizeAndRotationCmd(TInt aMode)
+	{
+	if (!iScreen->IsValidScreenSizeMode(aMode))
+		OwnerPanic(EWservPanicScreenModeNumber);
+	TPixelsTwipsAndRotation sar;
+	iScreen->GetScreenSizeAndRotation(sar,aMode);
+	CWsClient::ReplyBuf(&sar, sizeof(sar));
+	}
+
+void DWsScreenDevice::GetScreenSizeAndRotationCmd2(TInt aMode)
+	{
+	if (!iScreen->IsValidScreenSizeMode(aMode))
+		OwnerPanic(EWservPanicScreenModeNumber);
+	TPixelsAndRotation sar;
+	iScreen->GetScreenSizeAndRotation(sar,aMode);
+	CWsClient::ReplyBuf(&sar, sizeof(sar));
+	}
+
+void DWsScreenDevice::GetScreenModeDisplayMode(const TInt aMode)
+	{
+	if (!iScreen->IsValidScreenSizeMode(aMode))
+		{
+		OwnerPanic(EWservPanicScreenModeNumber);
+		}
+	SetReply(STATIC_CAST(TInt,iScreen->DefaultDisplayMode(aMode)));
+	}
+
+void DWsScreenDevice::GetScreenScale(TInt aMode)
+	{
+	if (!iScreen->IsValidScreenSizeMode(aMode))
+		{
+		OwnerPanic(EWservPanicScreenModeNumber);
+		}
+	CWsClient::ReplySize(iScreen->GetScreenScale(aMode));
+	}
+
+void DWsScreenDevice::SetAppScreenMode(TInt aMode)
+	{
+	if (!iScreen->IsValidScreenSizeMode(aMode))
+		{
+		OwnerPanic(EWservPanicScreenModeNumber);
+		}
+	const TSizeMode& sizeMode=iScreen->ScreenSizeModeData(aMode);
+	iAppScreenSizeInPixels=sizeMode.iScreenSize;
+	iAppScreenSizeInTwips=sizeMode.iScreenTwipsSize;
+	iAppMode=aMode;
+	iAppScale=sizeMode.iScreenScale;
+	iAppRotation=sizeMode.iRotation;
+	CWsWindowGroup::SetScreenDeviceValidStates(this);
+	}
+
+#define ROTATION_TO_FLAG(x) 1<<x
+
+void DWsScreenDevice::SetScreenDeviceValidStates(const DWsScreenDevice *aDevice)
+	{
+	TInt modes=iScreen->NumScreenSizeModes();
+	TInt mode;
+	for (mode=0;mode<modes;++mode)
+		{
+		if (!iScreen->IsValidScreenSizeMode(mode))
+			continue;
+		const TSizeMode& sizeMode=iScreen->ScreenSizeModeData(mode);
+		if (iAppScreenSizeInPixels==sizeMode.iScreenSize && ROTATION_TO_FLAG(iAppRotation)&sizeMode.iAlternativeRotations)
+			{
+			iAppMode=mode;
+			iAppScale=sizeMode.iScreenScale;
+			break;
+			}
+		}
+	CWsWindowGroup::SetScreenDeviceValidStates(aDevice);
+	}
+
+void DWsScreenDevice::NewOrientation(TInt aMode,CFbsBitGc::TGraphicsOrientation aRotation)
+	{
+	if (iAppMode==aMode)
+		iAppRotation=aRotation;
+	}
+
+void DWsScreenDevice::SetPaletteL()
+	{
+	const TInt size=iWsOwner->ClientMessage().GetDesLength(KRemoteBufferMessageSlot);
+	TInt numEntries=size/sizeof(TRgb);
+	CPalette* palette=CPalette::NewL(numEntries);
+	CleanupStack::PushL(palette);
+	TPtr8 paletteData(NULL,0);
+	palette->GetDataPtr(0,numEntries,paletteData);
+	iWsOwner->RemoteReadL(paletteData,0);
+	SetReply(iScreen->ScreenDevice()->SetCustomPalette(palette));
+	iScreen->Update((RWsRegion&)RootWindow()->WindowArea());
+	CleanupStack::PopAndDestroy(palette);
+	}
+
+void DWsScreenDevice::GetPalette(TInt aNumColors)
+	{
+	CPalette* palette;
+	TInt ret=iScreen->ScreenDevice()->GetPalette(palette);
+	if (ret<KErrNone)
+		goto Reply;
+	ret=palette->Entries();
+	if (ret!=aNumColors)
+		{
+		delete palette;
+Reply:
+		SetReply(ret);
+		return;
+		}
+	TPtr8 paletteData(NULL,0);
+	palette->GetDataPtr(0,ret,paletteData);
+	CWsClient::ReplyBuf(paletteData);
+	SetReply(KErrNone);
+	delete palette;
+	}
+
+TUint DWsScreenDevice::ClientDevicePointer()
+	{
+	return iClientScreenDevicePointer;	
+	}