--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graphicsdeviceinterface/screendriver/sgeneric/scdraw.inl	Tue Feb 02 01:47:50 2010 +0200
@@ -0,0 +1,242 @@
+// Copyright (c) 2007-2009 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:
+// This module implements the templated classes used to define screen display instances.
+// It only needs to be #included into scnew.cpp whisch is the only place the full-qualified templates are instanced.
+// Most of these methods are simply shims to the SurfaceHelper class.
+// 
+//
+
+/**
+ @file
+*/
+#ifndef __SCDRAW_INL__
+#define __SCDRAW_INL__
+
+#include "scdraw.h"	//should have already happened.
+
+//
+// Implementation of  template CGenericScreenDevice
+// Arguments  <class T>
+// Defines the common portions of a screendriver for GCE 
+//	the actual mode and the bits per pixel (or pixels per word) is not specified.
+//
+
+
+/**	Nothing to do to init the screen for the display modes currently supported.
+ * This is the place to set up the palette for low-colour screen devices, possibly including 12-bit.
+ **/
+template <class T> TInt  CGenericScreenDevice<T>::InitScreen()
+	{
+	return KErrNone ;
+	}
+
+//Construct splits into 2 methods. This portion is not dependent on pixel format
+template <class T> TInt  CGenericScreenDevice<T>::ConstructScreen(TInt , TAny *, TSize aSize, TInt )
+	{
+	CDrawXxxBppBitmap::iScanLineWords = iHelper.BytesPerScanline() / 4;
+	if (CDrawXxxBppBitmap::iScanLineWords==0)
+		{	//Note: This will cause WServ startup to fail. WServ only accepts KErrNotSupported
+		return KErrHardwareNotAvailable;
+		}
+	TInt ret = CDrawXxxBppBitmap::Construct(aSize);
+	if (ret == KErrNone)
+		{
+		CDrawXxxBppBitmap::iBits = (TUint32*)iHelper.AddressFirstPixel();
+		if (CDrawXxxBppBitmap::iBits==NULL)
+			{	//Note: This will cause WServ startup to fail. WServ only accepts KErrNotSupported
+			ret=KErrHardwareNotAvailable;
+			}
+		}
+	return ret;
+	}
+
+//Switch from the previous aDrawDevice to this one
+template <class T> void CGenericScreenDevice<T>::SetDisplayMode(CFbsDrawDevice* aDrawDevice)
+	{
+	iHelper.ResetUpdateRegion();
+
+	// Inherit the original draw device's orientation, if available.
+	TDeviceOrientation devOrientation = EDeviceOrientationNormal;
+
+	TAny* interface = NULL;
+	TInt ret = aDrawDevice->GetInterface(KSurfaceInterfaceID, interface);
+	//can't survive setting a different orientation to the source device so must read it successfully
+	__ASSERT_ALWAYS(ret == KErrNone,Panic(EScreenDriverPanicIncompatiblePreviousDevice));
+	devOrientation = reinterpret_cast<MSurfaceId*>(interface)->DeviceOrientation();
+	//SetDeviceOrientation will panic if it is incompatible
+	SetDeviceOrientation(devOrientation);
+
+	CDrawXxxBppBitmap::CopyOldSettings(aDrawDevice);
+	InitScreen();
+	}
+
+template <class T> TInt CGenericScreenDevice<T>::HorzTwipsPerThousandPixels() const
+	{
+ 	return iHelper.HorzTwipsPerThousandPixels(CDrawXxxBppBitmap::iSize);
+	}
+
+template <class T> TInt CGenericScreenDevice<T>::VertTwipsPerThousandPixels() const
+	{
+	return iHelper.VertTwipsPerThousandPixels(CDrawXxxBppBitmap::iSize);
+	}
+
+template <class T> void CGenericScreenDevice<T>::Update()
+	{
+	iHelper.Update();
+	}
+
+template <class T> void CGenericScreenDevice<T>::Update(const TRegion& aRegion)
+	{
+	iHelper.Update(aRegion);
+	}
+
+template <class T> void CGenericScreenDevice<T>::UpdateRegion(const TRect& aRect)
+	{
+	iHelper.UpdateRegion(aRect);
+	}
+
+template <class T> TInt CGenericScreenDevice<T>::GetInterface(TInt aInterfaceId, TAny*& aInterface)
+	{
+	if(aInterfaceId == KSurfaceInterfaceID)
+	    {
+		aInterface = static_cast <MSurfaceId*> (this);
+		return KErrNone;
+	    }
+	else
+		{
+	    return CDrawXxxBppBitmap::GetInterface(aInterfaceId, aInterface);
+		}
+	}
+
+template <class T> void CGenericScreenDevice<T>::GetSurface(TSurfaceId& aSid) const 
+	{
+	iHelper.GetSurface(aSid);
+	}
+
+
+template <class T> TUint CGenericScreenDevice<T>::DeviceOrientationsAvailable() const 
+	{
+	return iHelper.DeviceOrientationsAvailable(CGenericScreenDevice::iSize);
+	}
+
+template <class T> TDeviceOrientation CGenericScreenDevice<T>::DeviceOrientation() const 
+	{
+	return iHelper.DeviceOrientation();
+	}
+
+//
+// Implementation of  template CPalettizedScreenDevice
+// Arguments  <class T,TDisplayMode displayMode,TInt pixelsPerWord>
+// Defines a screendriver for GCE with a mode specified without using a GUID, probably palettized
+//
+//
+
+
+//Initialise palletised modes that are not assigned GUIDs
+template <class T,TDisplayMode displayMode,TInt pixelsPerWord> 
+TInt  CPalettizedScreenDevice<T,displayMode,pixelsPerWord>::ConstructScreen(TInt aScreenNo, TAny *aBitmapAddress, TSize aSize, TInt aHalMode)
+	{
+	TInt ret = CGenericScreenDevice::iHelper.Construct(aScreenNo, (TUidPixelFormat)0,aHalMode); //displayMode is NOT recorded in surfaceID
+	if (ret != KErrNone)
+		return ret;
+	return  CGenericScreenDevice::ConstructScreen(aScreenNo,aBitmapAddress,aSize,aHalMode);
+	}
+
+//Set size members based on pixel width/height, but also set stride member using pixels per word
+template <class T,TDisplayMode displayMode,TInt pixelsPerWord> 
+void CPalettizedScreenDevice<T,displayMode,pixelsPerWord>::SetSize(const TSize& aSize)
+	{
+	CDrawBitmap::SetSize(aSize);
+	__ASSERT_DEBUG(CGenericScreenDevice::iSize == aSize, User::Invariant());
+	CGenericScreenDevice::iLongWidth = CGenericScreenDevice::iScanLineWords * pixelsPerWord;
+	}
+	
+
+//sets the orientation flags, and rotates  the bitmap.	Calls SetSize, which uses pixelsPerWord 
+template <class T,TDisplayMode displayMode,TInt pixelsPerWord> 
+TBool  CPalettizedScreenDevice<T,displayMode,pixelsPerWord>::SetDeviceOrientation(TDeviceOrientation aOrientation)
+	{
+	TSize newSize;
+
+	if (!CGenericScreenDevice::iHelper.SetDeviceOrientation(aOrientation, newSize))
+		{
+		return EFalse;
+		}
+
+	// Need to update size, scan line size, etc.
+	CGenericScreenDevice::iScanLineWords = CGenericScreenDevice::iHelper.BytesPerScanline() / 4;	 //presumption here that BPS is always mod4.
+	CGenericScreenDevice::iBits = (TUint32*)CGenericScreenDevice::iHelper.AddressFirstPixel();
+	__ASSERT_ALWAYS(CGenericScreenDevice::iScanLineWords && CGenericScreenDevice::iBits,Panic(EScreenDriverPanicInvalidHalValue));
+	CGenericScreenDevice::SetSize(newSize);
+
+	return ETrue;
+	}
+
+	
+//
+// Implementation of  template CGuidScreenDevice
+// Arguments  <class T,TInt guidMode,TInt pixelsPerWord>
+// Defines a screendriver for GCE with a mode specified using a GUID, probably flat colour
+//
+//
+
+//Initialise modes that have been assigned GUIDs
+template <class T,TUidPixelFormat guidMode,TInt pixelsPerWord> 
+TInt  CGuidScreenDevice<T,guidMode,pixelsPerWord>::ConstructScreen(TInt aScreenNo, TAny *aBitmapAddress, TSize aSize, TInt aHalMode)
+	{
+	TInt ret = CGenericScreenDevice::iHelper.Construct(aScreenNo, guidMode,aHalMode);
+	if (ret != KErrNone)
+		{
+		return ret;
+		}
+	return  CGenericScreenDevice::ConstructScreen(aScreenNo,aBitmapAddress,aSize,aHalMode);
+	}
+
+
+//sets the orientation flags, and rotates  the bitmap.	Calls SetSize, which uses pixelsPerWord 
+template <class T,TUidPixelFormat guidMode,TInt pixelsPerWord> 
+TBool  CGuidScreenDevice<T,guidMode,pixelsPerWord>::SetDeviceOrientation(TDeviceOrientation aOrientation)
+	{
+	TSize newSize;
+
+	if (!CGenericScreenDevice::iHelper.SetDeviceOrientation(aOrientation, newSize))
+		{
+		return EFalse;
+		}
+
+	// Need to update size, scan line size, etc.
+	CGenericScreenDevice::iScanLineWords = CGenericScreenDevice::iHelper.BytesPerScanline() / 4;	 //presumption here that BPS is always mod4.
+	CGenericScreenDevice::iBits = (TUint32*)CGenericScreenDevice::iHelper.AddressFirstPixel();
+	__ASSERT_ALWAYS(CGenericScreenDevice::iScanLineWords && CGenericScreenDevice::iBits,Panic(EScreenDriverPanicInvalidHalValue));
+	CGenericScreenDevice::SetSize(newSize);
+
+	return ETrue;
+	}
+
+
+
+//Set size members based on pixel width/height, but also set stride member using pixels per word
+template <class T,TUidPixelFormat guidMode,TInt pixelsPerWord> 
+void CGuidScreenDevice<T,guidMode,pixelsPerWord>::SetSize(const TSize& aSize)
+	{
+	CDrawBitmap::SetSize(aSize);
+	__ASSERT_DEBUG(CGenericScreenDevice::iSize == aSize, User::Invariant());
+	CGenericScreenDevice::iLongWidth = CGenericScreenDevice::iScanLineWords * pixelsPerWord;
+	}
+	
+
+
+
+
+#endif	//__SCDRAW_INL__