sl@0: // Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: //
sl@0: 
sl@0: #include "FONTCOMP.H"
sl@0: 
sl@0: EffRead::EffRead(fstream& aFile,FontCompiler& aFontCompiler,Fxf* aFxf,short int* aMapSpace):
sl@0: 	FontRead(aFile,aFontCompiler,aFxf),
sl@0: 	iMapSpace(aMapSpace)
sl@0: 	{}
sl@0: 
sl@0: int EffRead::ReadFont()
sl@0:     {
sl@0: 	int count=0;
sl@0: 	int version=0;
sl@0: 	char* outbuffer[(MAX_CHAR_WID+7)>>3];
sl@0: 	int bitpos,len1,len2;
sl@0: 	int ReadSize,widToGo;
sl@0: 	int widthofi=0;
sl@0: 	int widthofM=0;
sl@0: 	FcmCharHead* pFxf;
sl@0: 	LetterTableData lettertabledata;
sl@0: 	LetterData letterdata;
sl@0: 	letterdata.blx = 0;
sl@0: 	letterdata.bly = 0;
sl@0: 	letterdata.rWid = 0;
sl@0: 	letterdata.rHgt = 0;
sl@0: 	int FileSize,FontNameOffs,VariousDataOffs,LetterOffs,LetterOffsBase,seekpos;
sl@0: 	unsigned short int* pDest;
sl@0: 	unsigned short int* pSrc;
sl@0: 	EffVariousData VariousData;
sl@0: 
sl@0: 	char* inBuffer=new char[((MAX_CHAR_WID+7)>>3)*MAX_HEIGHT];
sl@0: 	if(!inBuffer) return(NoMemory);
sl@0: 	iInputFile.read((char*)&FileSize,4);
sl@0: 	iInputFile.read((char*)&FontNameOffs,4);
sl@0: 	iInputFile.read((char*)&VariousDataOffs,4);
sl@0: 	iInputFile.read((char*)&VariousDataOffs,4);
sl@0: 	iInputFile.read((char*)&LetterOffs,4);
sl@0: 	iInputFile.seekg(FontNameOffs);
sl@0: 
sl@0: 	char tmpName[FONT_NAME_LEN+1];
sl@0: 	iInputFile.read(tmpName,FONT_NAME_LEN);
sl@0: 	tmpName[FONT_NAME_LEN]=0;
sl@0: 	strcpy(iFxf->name,tmpName);
sl@0: 	*(iFxf->typeface)=0;
sl@0: 
sl@0: 	iInputFile.seekg(VariousDataOffs);
sl@0: 	iInputFile.read((char*)&VariousData,sizeof(VariousData));
sl@0: 	version=VariousData.version;
sl@0: 	if(version==0) version=1;
sl@0: 	if(version!=1 && version!=2) return(FileFormat);
sl@0: 	pFxf=new FcmCharHead[MAX_CHARS];
sl@0: 	for(count=0;count<sizeof(FcmCharHead)*MAX_CHARS;count++)
sl@0: 		((char*)pFxf)[count]=0;
sl@0: 	int offset=0;
sl@0: 	int first=1;
sl@0: 	LetterOffsBase=LetterOffs;
sl@0: 	iFxf->descent= -VariousData.bly;
sl@0: 	iFxf->UlinePos= -VariousData.UnderLinePos-VariousData.UnderLineThickness;
sl@0: 	iFxf->UlineThickness=VariousData.UnderLineThickness;
sl@0: 	iFxf->nominal_ascent=(VariousData.Hgt/*+VariousData.LineSpacing*/)-iFxf->descent;
sl@0: 	iFxf->MaxChrWidth=0;
sl@0: 	iFxf->cell_height=VariousData.Hgt;
sl@0: 	for(unsigned int chNum=0;chNum<MAX_CHARS;chNum++)
sl@0: 		{
sl@0: 		if(iMapSpace)
sl@0: 			iInputFile.seekg((*(iMapSpace+chNum)<<2)+LetterOffsBase);
sl@0: 		else
sl@0: 			iInputFile.seekg(LetterOffs);
sl@0: 		iInputFile.read((char*)&lettertabledata,sizeof(LetterTableData));
sl@0: 		if(version==1)
sl@0: 			{
sl@0: 			lettertabledata.width>>=4;
sl@0: 			iInputFile.read((char*)&letterdata,sizeof(LetterData));
sl@0: 			LetterOffs+=sizeof(LetterData);
sl@0: 			}
sl@0: 		LetterOffs+=sizeof(LetterTableData);
sl@0: 		iFxf->chr[chNum]=0;
sl@0: // char 0 in EFF fonts have a garbage offset so ignore them.
sl@0: //		if(letterdata.offset)
sl@0: 		if(lettertabledata.offset && chNum>0)
sl@0: 			{
sl@0: 			seekpos=LetterOffsBase+lettertabledata.offset;
sl@0: 			iInputFile.seekg(seekpos);
sl@0: 			if(version==2)
sl@0: 				iInputFile.read((char*)&letterdata,sizeof(LetterData));
sl@0: 			if(first)
sl@0: 				{
sl@0: 				iFxf->FirstChr=chNum;
sl@0: 				first=0;
sl@0: 				}
sl@0: 			iFxf->n_chars=chNum+1;
sl@0: 			iFxf->chr[chNum]=pFxf;
sl@0: 			pFxf->offset=offset;
sl@0: 			pFxf->xOffset=letterdata.blx;
sl@0: 			pFxf->yOffset=letterdata.rHgt+letterdata.bly;
sl@0: 			pFxf->width=letterdata.rWid;
sl@0: 			if(chNum=='i')
sl@0: 				widthofi=pFxf->width;
sl@0: 			if(chNum=='M')
sl@0: 				widthofM=pFxf->width;
sl@0: 			pFxf->ByteWid=((pFxf->width+15)>>3)&(~1);
sl@0: 			pFxf->height=letterdata.rHgt;
sl@0: 			pFxf->move=lettertabledata.width;
sl@0: 			int chWid=letterdata.rWid;
sl@0: 			if(chWid>iFxf->MaxChrWidth)
sl@0: 			    iFxf->MaxChrWidth=chWid;
sl@0: 			ReadSize=(letterdata.rWid*letterdata.rHgt+7)>>3;
sl@0: 			iInputFile.read(inBuffer,ReadSize);
sl@0: 			bitpos=0;
sl@0: 			pSrc=(unsigned short int*)inBuffer;
sl@0: 			for(int i=0;i<letterdata.rHgt;i++)
sl@0: 			    {
sl@0: 			    pDest=(unsigned short int*)outbuffer;
sl@0: 			    for(int j=0;j<pFxf->ByteWid;j+=2)
sl@0: 			        {
sl@0: 			        len1=16-bitpos;
sl@0: 			        *pDest=(unsigned short int)((*pSrc)>>bitpos);
sl@0: 			        widToGo=letterdata.rWid-(j<<3);
sl@0: 			        if (len1>widToGo)
sl@0: 			            {
sl@0: 			            len1=widToGo;
sl@0: 			            len2=0;
sl@0: 			            }
sl@0: 			        else
sl@0: 			            {
sl@0: 			            pSrc++;
sl@0: 			            if ((len1+bitpos)>widToGo)
sl@0: 			                len2=widToGo-len1;
sl@0: 			            else
sl@0: 			                len2=bitpos;
sl@0: 			            if (len2)
sl@0: 			                *pDest|= (*pSrc)<<(16-bitpos);
sl@0: 			            }
sl@0: 			        *pDest&=0xFFFF>>(16-len2-len1);
sl@0: 			        bitpos=(bitpos+len1+len2)&0xF;
sl@0: 			        pDest++;
sl@0: 			        }
sl@0: 				memcpy(iFontCompiler->FontStore()+offset+pFxf->ByteWid*(letterdata.rHgt-i-1),outbuffer,pFxf->ByteWid);
sl@0: 			    }
sl@0: 			offset+=pFxf->ByteWid*letterdata.rHgt;
sl@0: 			}
sl@0:         pFxf++;
sl@0:         }
sl@0: 	if(widthofi && widthofM)
sl@0: 		iFxf->iProportional=(widthofi!=widthofM);
sl@0: 	return(NoError);
sl@0:     }
sl@0: