1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/graphics/graphicsdeviceinterface/screendriver/smomap/sccol8.cpp	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,145 @@
     1.4 +// Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.5 +// All rights reserved.
     1.6 +// This component and the accompanying materials are made available
     1.7 +// under the terms of "Eclipse Public License v1.0"
     1.8 +// which accompanies this distribution, and is available
     1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.10 +//
    1.11 +// Initial Contributors:
    1.12 +// Nokia Corporation - initial contribution.
    1.13 +//
    1.14 +// Contributors:
    1.15 +//
    1.16 +// Description:
    1.17 +// This module implemente the class use for a 8 bpp color screen.
    1.18 +// Include files                                                   
    1.19 +// 
    1.20 +//
    1.21 +
    1.22 +/**
    1.23 + @file
    1.24 +*/
    1.25 +/********************************************************************/
    1.26 +#include <bitdraw.h>
    1.27 +#include "scdraw.h"
    1.28 +#include <hal.h>
    1.29 +
    1.30 +/********************************************************************/
    1.31 +/*  Implementation of CDrawEightBppScreenBitmapColor class          */
    1.32 +/********************************************************************/
    1.33 +void CDrawEightBppScreenBitmapColor::SetSize(const TSize& aSize) 
    1.34 +	{
    1.35 +	CDrawBitmap::SetSize(aSize);
    1.36 +	__ASSERT_DEBUG(iSize == aSize, User::Invariant());
    1.37 +	iLongWidth = CDrawBitmap::iScanLineWords * 4;
    1.38 +	}
    1.39 +void CDrawEightBppScreenBitmapColor::SetDisplayMode(CFbsDrawDevice* aDrawDevice)
    1.40 +	{
    1.41 +	CopyOldSettings(aDrawDevice) ;
    1.42 +	InitScreen() ;
    1.43 +	}
    1.44 +
    1.45 +TInt CDrawEightBppScreenBitmapColor::HorzTwipsPerThousandPixels() const
    1.46 +	{
    1.47 +	if (iSize.iWidth == 0)
    1.48 +		return 0 ;
    1.49 +	TMachineInfoV1Buf miBuf ;
    1.50 +	UserHal::MachineInfo(miBuf) ;
    1.51 +	return miBuf().iPhysicalScreenSize.iWidth * 1000 / iSize.iWidth ;
    1.52 +	}
    1.53 +
    1.54 +TInt CDrawEightBppScreenBitmapColor::VertTwipsPerThousandPixels() const
    1.55 +	{
    1.56 +	if (iSize.iHeight == 0)
    1.57 +		return 0 ;
    1.58 +
    1.59 +	TMachineInfoV1Buf miBuf ;
    1.60 +	UserHal::MachineInfo(miBuf) ;
    1.61 +	return miBuf().iPhysicalScreenSize.iHeight * 1000 / iSize.iHeight ;
    1.62 +	}
    1.63 +	
    1.64 +/**
    1.65 +Initialises the palette
    1.66 +*/
    1.67 +TInt CDrawEightBppScreenBitmapColor::InitScreen()
    1.68 +	{
    1.69 +
    1.70 +	__ASSERT_ALWAYS(iPaletteAddress!=NULL, Panic(EScreenDriverPanicNullPointer)) ;
    1.71 +
    1.72 +	/* Fill the palette to support 8 Bpp color */
    1.73 +	TUint16* palettePtr = iPaletteAddress ;
    1.74 +	for (TInt count = 0; count < KEightBppPaletteEntries; count++)
    1.75 +		*palettePtr++ = TRgb::Color256(count)._Color4K() | KEightBppPixelBitSize ;
    1.76 +
    1.77 +	return KErrNone ;
    1.78 +	}
    1.79 +
    1.80 +/**
    1.81 +Constructs the CDrawEightBppScreenBitmapColor object.
    1.82 +@param aScreenNo Screen number. It will be used in HAL::Get() calls.
    1.83 +@param aBitmapAddress The screen memory address.
    1.84 +@param aSize Screen size
    1.85 +@return System-wide error codes, KErrNone if the construction was successfull.
    1.86 +*/
    1.87 +TInt CDrawEightBppScreenBitmapColor::ConstructScreenL(TInt aScreenNo, TAny* aBitmapAddress, TSize aSize)
    1.88 +	{
    1.89 +	iScreenNo = aScreenNo;
    1.90 +	TInt displayMode;
    1.91 +
    1.92 +	TInt ret = HAL::Get(aScreenNo, HALData::EDisplayMode, displayMode);
    1.93 +	if (ret != KErrNone)
    1.94 +		return ret;
    1.95 +
    1.96 +	TInt linepitchInBytes = displayMode;
    1.97 +	ret = HAL::Get(aScreenNo,HALData::EDisplayOffsetBetweenLines,linepitchInBytes);
    1.98 +	if (ret != KErrNone)
    1.99 +		return ret;
   1.100 +
   1.101 +	CDrawBitmap::iScanLineWords = linepitchInBytes / 4;
   1.102 +	ret = CDrawEightBppBitmapColor::Construct(aSize);
   1.103 +	if (ret != KErrNone)
   1.104 +		return ret ;
   1.105 +
   1.106 +	/* Set the pointer on the first palette entry */
   1.107 +	iPaletteAddress = (TUint16*)aBitmapAddress ;
   1.108 +	
   1.109 +	TInt offsetToFirstPixel = displayMode;
   1.110 +	ret = HAL::Get(aScreenNo,HALData::EDisplayOffsetToFirstPixel, offsetToFirstPixel);
   1.111 +	if (ret != KErrNone)
   1.112 +		return ret;
   1.113 +	iBits = (TUint32*)((TUint32)aBitmapAddress + offsetToFirstPixel);
   1.114 +
   1.115 +	return KErrNone ;
   1.116 +	}
   1.117 +
   1.118 +void CDrawEightBppScreenBitmapColor::OrientationsAvailable(TBool aOrientation[4])
   1.119 +	{
   1.120 +	aOrientation[EOrientationNormal]     = ETrue ;
   1.121 +	aOrientation[EOrientationRotated90]  = ETrue ;
   1.122 +	aOrientation[EOrientationRotated180] = ETrue ;
   1.123 +	aOrientation[EOrientationRotated270] = ETrue ;
   1.124 +	}
   1.125 +
   1.126 +TBool CDrawEightBppScreenBitmapColor::SetOrientation(TOrientation aOrientation)
   1.127 +	{
   1.128 +	iOrientation = aOrientation ;
   1.129 +	return ETrue ;
   1.130 +	}
   1.131 +
   1.132 +TInt CDrawEightBppScreenBitmapColor::SetCustomPalette(const CPalette* aPalette)
   1.133 +	{
   1.134 +	TInt ret = CDrawEightBppBitmapColor::SetCustomPalette(aPalette) ;
   1.135 +
   1.136 +	if (ret == KErrNone)
   1.137 +		{
   1.138 +		TInt index = 0 ;
   1.139 +		TUint16* palettePtr = iPaletteAddress ;
   1.140 +		const TUint16* const palettePtrLimit = iPaletteAddress + KEightBppPaletteEntries ;
   1.141 +
   1.142 +		*palettePtr++ = IndexToColor(index++)._Color4K() | KEightBppPixelBitSize ;
   1.143 +
   1.144 +		while (palettePtr < palettePtrLimit)
   1.145 +			*palettePtr++ = IndexToColor(index++)._Color4K() ;
   1.146 +		}
   1.147 +	return ret ;
   1.148 +	}