1 // Copyright (c) 1997-2009 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 // MCOT platform

    15 // 

    16 //

    17 

    18 #include <hal.h>

    19 #include "scdraw.h"

    20 #include "ScreenInfo.h"

    21 #include <graphics/gdi/gdiconsts.h>

    22 

    23 /**

    24 Creates an instance of CFbsDrawDevice class.

    25 @param aScreenNo Screen number

    26 @param aDispMode Display mode

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

    28 @return A pointer to the created CFbsDrawDevice object

    29 @leave System-wide error code including KErrNoMemory

    30 @internalComponent

    31 */

    32 static CFbsDrawDevice* CreateInstanceL(TInt aScreenNo,

    33 									   TDisplayMode aDispMode,

    34 									   const TScreenInfo& aScreenInfo)

    35 	{

    36 	CFbsDrawDevice* drawDevice = NULL;

    37 

    38 	switch (aDispMode)

    39 		{

    40 	case SCREEN_LAYOUT_DISPLAY_MODE:

    41 		drawDevice = new(ELeave) CDrawScreenBitmap;

    42 		CleanupStack::PushL(drawDevice);

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

    44 																aScreenInfo.iAddress, 

    45 																aScreenInfo.iSize));

    46 		break;

    47 	default:

    48 		User::Leave(KErrNotSupported);

    49 		}

    50 

    51 	CleanupStack::Pop(); // drawDevice

    52 	return drawDevice;

    53 	}

    54 

    55 /**

    56 @deprecated Use NewScreenDeviceL(TInt aScreenNo, TDisplayMode aDispMode)

    57 */

    58 EXPORT_C CFbsDrawDevice* CFbsDrawDevice::NewScreenDeviceL(TScreenInfoV01 aInfo,

    59 														  TDisplayMode aDispMode)

    60 	{

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

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

    63 	}

    64 

    65 /**

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

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

    68 @param aScreenNo Screen number

    69 @param aDispMode Requested display mode

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

    71 @leave KErrNoMemory Not enough memory

    72 	   KErrNotSupported The requested screen device type is not supported

    73 */

    74 EXPORT_C CFbsDrawDevice* CFbsDrawDevice::NewScreenDeviceL(TInt aScreenNo,

    75 														  TDisplayMode aDispMode)

    76 	{

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

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

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

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

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

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

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

    84 	}

    85 

    86 /**

    87 Depending on the current graphics hardware this 

    88 will return one of the 16M video modes defined in

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

    90 @see TDisplayMode

    91 @return	a 16M display mode or ENone.

    92 */

    93 EXPORT_C TDisplayMode CFbsDrawDevice::DisplayMode16M()

    94 	{

    95 	return ENone;

    96 	}