// Copyright (c) 1997-2009 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:

// MCOT platform

// 

//

#include <hal.h>

#include "scdraw.h"

#include "ScreenInfo.h"

#include <graphics/gdi/gdiconsts.h>

/**

Creates an instance of CFbsDrawDevice class.

@param aScreenNo Screen number

@param aDispMode Display mode

@param aScreenInfo Screen parameters: video memory address and screen size

@return A pointer to the created CFbsDrawDevice object

@leave System-wide error code including KErrNoMemory

@internalComponent

*/

static CFbsDrawDevice* CreateInstanceL(TInt aScreenNo,

									   TDisplayMode aDispMode,

									   const TScreenInfo& aScreenInfo)

	{

	CFbsDrawDevice* drawDevice = NULL;

	switch (aDispMode)

		{

	case SCREEN_LAYOUT_DISPLAY_MODE:

		drawDevice = new(ELeave) CDrawScreenBitmap;

		CleanupStack::PushL(drawDevice);

		User::LeaveIfError(((CDrawScreenBitmap*)drawDevice)->ConstructScreen(aScreenNo,

																aScreenInfo.iAddress, 

																aScreenInfo.iSize));

		break;

	default:

		User::Leave(KErrNotSupported);

		}

	CleanupStack::Pop(); // drawDevice

	return drawDevice;

	}

/**

@deprecated Use NewScreenDeviceL(TInt aScreenNo, TDisplayMode aDispMode)

*/

EXPORT_C CFbsDrawDevice* CFbsDrawDevice::NewScreenDeviceL(TScreenInfoV01 aInfo,

														  TDisplayMode aDispMode)

	{

	TScreenInfo screenInfo(aInfo.iScreenAddress, aInfo.iScreenSize);

	return ::CreateInstanceL(KDefaultScreenNo, aDispMode, screenInfo);

	}

/**

Creates a new screen device instance, which implements CFbsDrawDevice interface.

The method has to be implemented for each type of supported video hardware.

@param aScreenNo Screen number

@param aDispMode Requested display mode

@return A pointer to just created screen device, which implements CFbsDrawDevice interface

@leave KErrNoMemory Not enough memory

	   KErrNotSupported The requested screen device type is not supported

*/

EXPORT_C CFbsDrawDevice* CFbsDrawDevice::NewScreenDeviceL(TInt aScreenNo,

														  TDisplayMode aDispMode)

	{

	TInt address = 0, width = 0, height = 0;

	User::LeaveIfError(HAL::Get(aScreenNo, HALData::EDisplayMemoryAddress, address));

	User::LeaveIfError(HAL::Get(aScreenNo, HALData::EDisplayXPixels, width));

	User::LeaveIfError(HAL::Get(aScreenNo, HALData::EDisplayYPixels, height));

	__ASSERT_ALWAYS(width > 0 && height > 0 && address != 0, Panic(EScreenDriverPanicInvalidHalValue));

	TScreenInfo screenInfo(reinterpret_cast <TAny*> (address), TSize(width, height));

	return ::CreateInstanceL(aScreenNo, aDispMode, screenInfo);

	}

/**

Depending on the current graphics hardware this 

will return one of the 16M video modes defined in

TDisplayMode, or ENone if a 16M video mode is not supported.

@see TDisplayMode

@return	a 16M display mode or ENone.

*/

EXPORT_C TDisplayMode CFbsDrawDevice::DisplayMode16M()

	{

	return ENone;

	}