kernel/eka/drivers/edisp/epoc/vga/vgatext.cpp
changeset 9 96e5fb8b040d
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/kernel/eka/drivers/edisp/epoc/vga/vgatext.cpp	Thu Dec 17 09:24:54 2009 +0200
@@ -0,0 +1,238 @@
+// 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 the License "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:
+// e32\drivers\edisp\epoc\vga\vgatext.cpp
+// Brutus display driver
+// 
+//
+
+#include "ws_std.h"
+
+const TUint KCharAttrib=0x17;		// white on blue
+
+#if 0
+#define __DEBUG_PRINT(a) RDebug::Print(a)
+#define __DEBUG_PRINT2(a,b) RDebug::Print(a,b)
+#else
+#define __DEBUG_PRINT(a)
+#define __DEBUG_PRINT2(a,b)
+#endif
+
+class CScreenDriverVgaText : public CScreenDriver
+	{
+public:
+	CScreenDriverVgaText();
+	virtual void Init(TSize &aScreenSize,TSize &aFontSize);
+	virtual void Blit(const TText *aBuffer,TInt aLength,const TPoint &aPosition);
+	virtual TBool ScrollUp(const TRect& aRect);
+	virtual void Clear(const TRect& aRect);
+
+	virtual void SetPixel(const TPoint& aPoint,TUint8 aColour);
+	virtual TInt GetPixel(const TPoint& aPoint);
+	virtual void SetWord(const TPoint& aPoint,TInt aWord);
+	virtual TInt GetWord(const TPoint& aPoint);
+	virtual void SetLine(const TPoint& aPoint,const TPixelLine& aPixelLine);
+	virtual void GetLine(const TPoint& aPoint,TPixelLine& aPixelLine);
+
+	virtual void SetPaletteEntry(TColorIndex anIndex,TUint8 aRed,TUint8 aGreen,TUint8 aBlue);
+	virtual void GetPaletteEntry(TColorIndex anIndex,TUint8 &aRed,TUint8 &aGreen,TUint8 &aBlue);
+	virtual void SetForegroundColor(TColorIndex anIndex);
+	virtual void SetBackgroundColor(TColorIndex anIndex);
+	virtual void GetAttributeColors(TColorIndex* anArray);
+	virtual TInt SetMode(TVideoMode aMode);
+public:
+	TInt iMode;
+	TUint16* iScreen;
+	TInt iSizeX;
+	TInt iSizeY;
+	friend class CScreenDriver;
+	};
+
+CScreenDriverVgaText::CScreenDriverVgaText()
+//
+// Constructor
+//
+	{
+	__DEBUG_PRINT(_L("CSD::Ctor"));
+	iMode=EMono;
+	}
+
+CScreenDriver* NewScreenDriverVgaText()
+//
+// Return the actual screen driver.
+//
+	{
+
+	__DEBUG_PRINT(_L("CSD::New"));
+
+	CScreenDriverVgaText* s=new CScreenDriverVgaText;
+	if (!s)
+		return NULL;
+	TScreenInfoV01 info;
+	TPckg<TScreenInfoV01> infoPckg(info);
+	UserSvr::ScreenInfo(infoPckg);
+	if (!info.iScreenAddressValid)
+		{
+		delete s;
+		return NULL;
+		}
+	s->iScreen = (TUint16*)(TUint32(info.iScreenAddress)+0x18000);
+	s->iSizeX=80;
+	s->iSizeY=25;
+	return s;
+	}
+
+void CScreenDriverVgaText::Init(TSize& aScreenSize, TSize& aFontSize)
+//
+// Report screen information
+//
+	{
+
+	__DEBUG_PRINT(_L("CSD::Init"));
+	aFontSize=TSize(8,10);
+	aScreenSize.iWidth=iSizeX;
+	aScreenSize.iHeight=iSizeY;
+
+	TInt i;
+	TUint16* p=iScreen;
+	for (i=0; i<iSizeX*iSizeY; ++i)
+		*p++=KCharAttrib<<8;
+	}
+
+TInt CScreenDriverVgaText::SetMode(TVideoMode /*aMode*/)
+//
+// Set the screen mode
+//
+	{
+	__DEBUG_PRINT(_L("CSD::SetMode"));
+	return(KErrNotSupported);
+	}
+
+void CScreenDriverVgaText::Blit(const TText* aBuf, TInt aLen, const TPoint& aPos)
+//
+// Write contiguous block of characters to some segment of a line on the display
+//
+	{
+	switch(iMode)
+		{
+		case EMono:
+			{
+			TUint16* pS=iScreen+aPos.iY*iSizeX+aPos.iX;
+			TUint8* pSB=(TUint8*)pS;
+			while(aLen--)
+				{
+				*pSB=(*aBuf++)&0xff;
+				pSB+=2;
+				}
+			break;
+			}
+		default:
+			break;
+		}
+	}
+
+TBool CScreenDriverVgaText::ScrollUp(const TRect& aRect)
+//
+// Scroll a rectangle of the screen up one character, don't update bottom line
+//
+	{
+
+	__DEBUG_PRINT(_L("CSD::ScrollUp"));
+	TUint16* pT=iScreen+aRect.iTl.iY*iSizeX+aRect.iTl.iX;
+	TUint16* pS=pT+iSizeX;
+	TUint16* pE=iScreen+aRect.iBr.iY*iSizeX;
+	TInt w=aRect.iBr.iX-aRect.iTl.iX;
+	if (w>0)
+		{
+		for (; pS<pE; pT+=iSizeX, pS+=iSizeX)
+			{
+			Mem::Copy(pT,pS,w*2);
+			}
+		}
+	return ETrue;
+	}
+
+void CScreenDriverVgaText::Clear(const TRect& aRect)
+//
+// Clear a rectangle of the screen, don't clear bottom line
+//
+	{
+
+__DEBUG_PRINT(_L("CSD::Clear"));
+	TUint16* pT=iScreen+aRect.iTl.iY*iSizeX+aRect.iTl.iX;
+	TUint16* pE=iScreen+aRect.iBr.iY*iSizeX;
+	TInt w=aRect.iBr.iX-aRect.iTl.iX;
+	if (w>0)
+		{
+		for (; pT<pE; pT+=iSizeX)
+			{
+			TInt i;
+			TUint16* pT2=pT;
+			for (i=w; i; --i)
+				*pT2++=KCharAttrib<<8;
+			}
+		}
+	}
+
+void CScreenDriverVgaText::SetPixel(const TPoint& /*aPoint*/, TUint8 /*aColour*/)
+	{
+	__DEBUG_PRINT(_L("CSD::SetPix"));
+	}
+
+TInt CScreenDriverVgaText::GetPixel(const TPoint& /*aPoint*/)
+	{
+	__DEBUG_PRINT(_L("CSD::GetPix"));
+	return 0;
+	}
+
+void CScreenDriverVgaText::SetWord(const TPoint& /*aPoint*/, TInt /*aWord*/)
+	{
+	__DEBUG_PRINT(_L("CSD::SetWord"));
+	}
+
+TInt CScreenDriverVgaText::GetWord(const TPoint& /*aPoint*/)
+	{
+	__DEBUG_PRINT(_L("CSD::GetWord"));
+	return 0;
+	}
+
+void CScreenDriverVgaText::SetLine(const TPoint& /*aPoint*/, const TPixelLine& /*aPixelLine*/)
+	{
+	__DEBUG_PRINT(_L("CSD::SetLine"));
+	}
+
+void CScreenDriverVgaText::GetLine(const TPoint& /*aPoint*/, TPixelLine& /*aPixelLine*/)
+	{
+	__DEBUG_PRINT(_L("CSD::GetLine"));
+	}
+
+void CScreenDriverVgaText::SetPaletteEntry(TColorIndex /*anIndex*/, TUint8 /*aRed*/, TUint8 /*aGreen*/, TUint8 /*aBlue*/)
+	{
+	}
+
+void CScreenDriverVgaText::GetPaletteEntry(TColorIndex /*anIndex*/, TUint8& /*aRed*/, TUint8& /*aGreen*/, TUint8& /*aBlue*/)
+	{
+	}
+
+void CScreenDriverVgaText::SetForegroundColor(TColorIndex /*anIndex*/)
+	{
+	}
+
+void CScreenDriverVgaText::SetBackgroundColor(TColorIndex /*anIndex*/)
+	{
+	}
+
+void CScreenDriverVgaText::GetAttributeColors(TColorIndex* /*anArray*/)
+	{
+	}
+