--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/graphicsdeviceinterface/screendriver/smomap/scnew.cpp Tue Feb 02 01:47:50 2010 +0200
@@ -0,0 +1,201 @@
+// Copyright (c) 2003-2009 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 functions that create the screen class depending
+// on the screen type.
+// Include files
+//
+//
+
+/**
+ @file
+*/
+/********************************************************************/
+#include <bitdraw.h>
+#include "scdraw.h"
+#include <hal.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;
+
+ TInt bpp;
+ if(HAL::Get(aScreenNo, HALData::EDisplayMode, bpp) != KErrNone)
+ {
+ User::Leave(KErrNotSupported);
+ }
+ if(HAL::Get(aScreenNo, HALData::EDisplayBitsPerPixel, bpp) != KErrNone)
+ {
+ User::Leave(KErrNotSupported);
+ }
+
+ //Switch the display mode, call the construtor of the class defined
+ //in the ScmonXX.cpp or SccolXX.cpp file.
+ switch(aDispMode)
+ {
+ case EColor256: // 8 Bpp color mode
+ if(bpp == 8)
+ {
+ drawDevice = new (ELeave) CDrawEightBppScreenBitmapColor;
+ CleanupStack::PushL(drawDevice) ;
+ User::LeaveIfError(((CDrawEightBppScreenBitmapColor*)drawDevice)->ConstructScreenL(
+ aScreenNo,
+ aScreenInfo.iAddress,
+ aScreenInfo.iSize));
+ }
+ else
+ {
+ User::Leave(KErrNotSupported);
+ }
+ break;
+
+ case EColor64K: // 16 Bpp color mode
+ if(bpp == 16)
+ {
+ drawDevice = new (ELeave) CDrawSixteenBppScreenBitmap;
+ CleanupStack::PushL(drawDevice);
+ User::LeaveIfError(((CDrawSixteenBppScreenBitmap*)drawDevice)->ConstructScreenL(
+ aScreenNo,
+ aScreenInfo.iAddress,
+ aScreenInfo.iSize));
+ }
+ else
+ {
+ User::Leave(KErrNotSupported);
+ }
+ break;
+
+ case EColor16MU: // 24 unpacked Bpp color mode
+ if((bpp == 24 || bpp == 32) && aDispMode == CFbsDrawDevice::DisplayMode16M()) //there is some "ambiguity" about 24 and 32 bit modes...
+ //They are both byte per color component, and both actually have 32 bits per pixel memory use.
+ {
+ drawDevice = new (ELeave) CDrawUTwentyFourBppScreenBitmap;
+ CleanupStack::PushL(drawDevice);
+ User::LeaveIfError(((CDrawUTwentyFourBppScreenBitmap*)drawDevice)->ConstructScreenL(
+ aScreenNo,
+ aScreenInfo.iAddress,
+ aScreenInfo.iSize));
+ }
+ else
+ {
+ User::Leave(KErrNotSupported);
+ }
+ break;
+
+ case EColor16MA: // 32 Bpp color mode
+ if((bpp == 24 || bpp == 32) && aDispMode == CFbsDrawDevice::DisplayMode16M()) //there is some "ambiguity" about 24 and 32 bit modes...
+ //They are both byte per color component, and both actually have 32 bits per pixel memory use.
+ {
+ drawDevice = new (ELeave) CDrawThirtyTwoBppScreenBitmapAlpha;
+ CleanupStack::PushL(drawDevice);
+ User::LeaveIfError(((CDrawThirtyTwoBppScreenBitmapAlpha*)drawDevice)->ConstructScreenL(
+ aScreenNo,
+ aScreenInfo.iAddress,
+ aScreenInfo.iSize));
+ }
+ else
+ {
+ User::Leave(KErrNotSupported);
+ }
+ break;
+
+ case EColor16MAP: // 32 Bpp color mode
+ if((bpp == 24 || bpp == 32) && aDispMode == CFbsDrawDevice::DisplayMode16M()) //there is some "ambiguity" about 24 and 32 bit modes...
+ //They are both byte per color component, and both actually have 32 bits per pixel memory use.
+ {
+ drawDevice = new (ELeave) CDrawThirtyTwoBppScreenBitmapAlphaPM;
+ CleanupStack::PushL(drawDevice);
+ User::LeaveIfError(((CDrawThirtyTwoBppScreenBitmapAlphaPM*)drawDevice)->ConstructScreenL(
+ aScreenNo,
+ aScreenInfo.iAddress,
+ aScreenInfo.iSize));
+ }
+ else
+ {
+ User::Leave(KErrNotSupported);
+ }
+ break;
+
+ default:
+ User::Leave(KErrNotSupported);
+ }
+
+ CleanupStack::Pop(drawDevice);
+ return drawDevice;
+ }
+
+
+/********************************************************************/
+/* Implementation of CFbsDrawDevice class */
+/********************************************************************/
+
+/**
+This function calls the correct constructor in function of the display mode.
+@param aInfo, Structure of the LCD info
+@param aDispMode, display mode
+@return A pointer to just created screen device, which implements CFbsDrawDevice interface
+@deprecated Use CFbsDrawDevice::NewScreenDeviceL(TInt aScreenNo, TDisplayMode aDispMode)
+*/
+EXPORT_C CFbsDrawDevice* CFbsDrawDevice::NewScreenDeviceL(TScreenInfoV01 aInfo, TDisplayMode aDispMode)
+ {
+ __ASSERT_ALWAYS(aInfo.iScreenAddressValid, Panic(EScreenDriverPanicInvalidWindowHandle));
+ 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;
+ return EColor16MA;
+ }