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// Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of the License "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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// e32\drivers\edisp\epoc\vga\vgatext.cpp
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// Brutus display driver
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//
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//
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#include "ws_std.h"
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const TUint KCharAttrib=0x17; // white on blue
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#if 0
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#define __DEBUG_PRINT(a) RDebug::Print(a)
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#define __DEBUG_PRINT2(a,b) RDebug::Print(a,b)
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#else
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#define __DEBUG_PRINT(a)
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#define __DEBUG_PRINT2(a,b)
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#endif
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class CScreenDriverVgaText : public CScreenDriver
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{
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public:
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CScreenDriverVgaText();
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virtual void Init(TSize &aScreenSize,TSize &aFontSize);
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virtual void Blit(const TText *aBuffer,TInt aLength,const TPoint &aPosition);
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virtual TBool ScrollUp(const TRect& aRect);
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virtual void Clear(const TRect& aRect);
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virtual void SetPixel(const TPoint& aPoint,TUint8 aColour);
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virtual TInt GetPixel(const TPoint& aPoint);
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virtual void SetWord(const TPoint& aPoint,TInt aWord);
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virtual TInt GetWord(const TPoint& aPoint);
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virtual void SetLine(const TPoint& aPoint,const TPixelLine& aPixelLine);
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virtual void GetLine(const TPoint& aPoint,TPixelLine& aPixelLine);
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virtual void SetPaletteEntry(TColorIndex anIndex,TUint8 aRed,TUint8 aGreen,TUint8 aBlue);
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virtual void GetPaletteEntry(TColorIndex anIndex,TUint8 &aRed,TUint8 &aGreen,TUint8 &aBlue);
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virtual void SetForegroundColor(TColorIndex anIndex);
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virtual void SetBackgroundColor(TColorIndex anIndex);
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virtual void GetAttributeColors(TColorIndex* anArray);
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virtual TInt SetMode(TVideoMode aMode);
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public:
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TInt iMode;
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TUint16* iScreen;
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TInt iSizeX;
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TInt iSizeY;
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friend class CScreenDriver;
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};
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CScreenDriverVgaText::CScreenDriverVgaText()
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//
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// Constructor
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//
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{
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__DEBUG_PRINT(_L("CSD::Ctor"));
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iMode=EMono;
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}
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CScreenDriver* NewScreenDriverVgaText()
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//
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// Return the actual screen driver.
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//
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{
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__DEBUG_PRINT(_L("CSD::New"));
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CScreenDriverVgaText* s=new CScreenDriverVgaText;
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if (!s)
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return NULL;
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TScreenInfoV01 info;
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TPckg<TScreenInfoV01> infoPckg(info);
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UserSvr::ScreenInfo(infoPckg);
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if (!info.iScreenAddressValid)
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{
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delete s;
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return NULL;
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}
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s->iScreen = (TUint16*)(TUint32(info.iScreenAddress)+0x18000);
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s->iSizeX=80;
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s->iSizeY=25;
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return s;
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}
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void CScreenDriverVgaText::Init(TSize& aScreenSize, TSize& aFontSize)
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//
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// Report screen information
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//
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{
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__DEBUG_PRINT(_L("CSD::Init"));
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aFontSize=TSize(8,10);
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aScreenSize.iWidth=iSizeX;
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aScreenSize.iHeight=iSizeY;
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TInt i;
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TUint16* p=iScreen;
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for (i=0; i<iSizeX*iSizeY; ++i)
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*p++=KCharAttrib<<8;
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}
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TInt CScreenDriverVgaText::SetMode(TVideoMode /*aMode*/)
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//
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// Set the screen mode
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//
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{
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__DEBUG_PRINT(_L("CSD::SetMode"));
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return(KErrNotSupported);
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}
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void CScreenDriverVgaText::Blit(const TText* aBuf, TInt aLen, const TPoint& aPos)
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//
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// Write contiguous block of characters to some segment of a line on the display
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//
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{
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switch(iMode)
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{
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case EMono:
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{
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TUint16* pS=iScreen+aPos.iY*iSizeX+aPos.iX;
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TUint8* pSB=(TUint8*)pS;
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while(aLen--)
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{
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*pSB=(*aBuf++)&0xff;
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pSB+=2;
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}
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break;
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}
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default:
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break;
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}
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}
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TBool CScreenDriverVgaText::ScrollUp(const TRect& aRect)
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//
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// Scroll a rectangle of the screen up one character, don't update bottom line
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//
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{
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__DEBUG_PRINT(_L("CSD::ScrollUp"));
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TUint16* pT=iScreen+aRect.iTl.iY*iSizeX+aRect.iTl.iX;
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TUint16* pS=pT+iSizeX;
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TUint16* pE=iScreen+aRect.iBr.iY*iSizeX;
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TInt w=aRect.iBr.iX-aRect.iTl.iX;
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if (w>0)
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{
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for (; pS<pE; pT+=iSizeX, pS+=iSizeX)
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{
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Mem::Copy(pT,pS,w*2);
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}
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}
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return ETrue;
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}
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void CScreenDriverVgaText::Clear(const TRect& aRect)
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//
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// Clear a rectangle of the screen, don't clear bottom line
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//
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{
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__DEBUG_PRINT(_L("CSD::Clear"));
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TUint16* pT=iScreen+aRect.iTl.iY*iSizeX+aRect.iTl.iX;
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TUint16* pE=iScreen+aRect.iBr.iY*iSizeX;
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TInt w=aRect.iBr.iX-aRect.iTl.iX;
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if (w>0)
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{
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for (; pT<pE; pT+=iSizeX)
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{
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TInt i;
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TUint16* pT2=pT;
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for (i=w; i; --i)
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*pT2++=KCharAttrib<<8;
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}
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}
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}
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void CScreenDriverVgaText::SetPixel(const TPoint& /*aPoint*/, TUint8 /*aColour*/)
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{
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__DEBUG_PRINT(_L("CSD::SetPix"));
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}
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TInt CScreenDriverVgaText::GetPixel(const TPoint& /*aPoint*/)
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{
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__DEBUG_PRINT(_L("CSD::GetPix"));
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return 0;
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}
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void CScreenDriverVgaText::SetWord(const TPoint& /*aPoint*/, TInt /*aWord*/)
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{
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__DEBUG_PRINT(_L("CSD::SetWord"));
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}
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TInt CScreenDriverVgaText::GetWord(const TPoint& /*aPoint*/)
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{
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__DEBUG_PRINT(_L("CSD::GetWord"));
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return 0;
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}
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void CScreenDriverVgaText::SetLine(const TPoint& /*aPoint*/, const TPixelLine& /*aPixelLine*/)
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{
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__DEBUG_PRINT(_L("CSD::SetLine"));
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}
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void CScreenDriverVgaText::GetLine(const TPoint& /*aPoint*/, TPixelLine& /*aPixelLine*/)
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{
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__DEBUG_PRINT(_L("CSD::GetLine"));
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}
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void CScreenDriverVgaText::SetPaletteEntry(TColorIndex /*anIndex*/, TUint8 /*aRed*/, TUint8 /*aGreen*/, TUint8 /*aBlue*/)
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{
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}
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void CScreenDriverVgaText::GetPaletteEntry(TColorIndex /*anIndex*/, TUint8& /*aRed*/, TUint8& /*aGreen*/, TUint8& /*aBlue*/)
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{
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}
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void CScreenDriverVgaText::SetForegroundColor(TColorIndex /*anIndex*/)
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{
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}
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void CScreenDriverVgaText::SetBackgroundColor(TColorIndex /*anIndex*/)
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{
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}
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void CScreenDriverVgaText::GetAttributeColors(TColorIndex* /*anArray*/)
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{
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}
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