gfxtools/gditools/fontcomp/EFF.CPP
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Thu, 17 Dec 2009 09:14:18 +0200
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child 9 2013ebce6d92
permissions -rw-r--r--
Revision: 200949 Kit: 200951
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/*
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* Copyright (c) 1997-2007 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 "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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*
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*/
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#include "FONTCOMP.H"
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EffRead::EffRead(fstream& aFile,FontCompiler& aFontCompiler,Fxf* aFxf,short int* aMapSpace):
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	FontRead(aFile,aFontCompiler,aFxf),
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	iMapSpace(aMapSpace)
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	{}
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int EffRead::ReadFont()
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    {
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	int count=0;
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	int version=0;
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	char* outbuffer[(MAX_CHAR_WID+7)>>3];
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	int bitpos,len1,len2;
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	int ReadSize,widToGo;
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	int widthofi=0;
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	int widthofM=0;
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	FcmCharHead* pFxf;
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	LetterTableData lettertabledata;
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	LetterData letterdata;
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	letterdata.blx = 0;
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	letterdata.bly = 0;
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	letterdata.rWid = 0;
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	letterdata.rHgt = 0;
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	int FileSize,FontNameOffs,VariousDataOffs,LetterOffs,LetterOffsBase,seekpos;
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	unsigned short int* pDest;
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	unsigned short int* pSrc;
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	EffVariousData VariousData;
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	char* inBuffer=new char[((MAX_CHAR_WID+7)>>3)*MAX_HEIGHT];
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	if(!inBuffer) return(NoMemory);
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	iInputFile.read((char*)&FileSize,4);
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	iInputFile.read((char*)&FontNameOffs,4);
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	iInputFile.read((char*)&VariousDataOffs,4);
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	iInputFile.read((char*)&VariousDataOffs,4);
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	iInputFile.read((char*)&LetterOffs,4);
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	iInputFile.seekg(FontNameOffs);
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	char tmpName[FONT_NAME_LEN+1];
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	iInputFile.read(tmpName,FONT_NAME_LEN);
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	tmpName[FONT_NAME_LEN]=0;
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	strcpy(iFxf->name,tmpName);
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	*(iFxf->typeface)=0;
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	iInputFile.seekg(VariousDataOffs);
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	iInputFile.read((char*)&VariousData,sizeof(VariousData));
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	version=VariousData.version;
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	if(version==0) version=1;
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	if(version!=1 && version!=2) return(FileFormat);
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	pFxf=new FcmCharHead[MAX_CHARS];
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	for(count=0;count<sizeof(FcmCharHead)*MAX_CHARS;count++)
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		((char*)pFxf)[count]=0;
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	int offset=0;
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	int first=1;
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	LetterOffsBase=LetterOffs;
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	iFxf->descent= -VariousData.bly;
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	iFxf->UlinePos= -VariousData.UnderLinePos-VariousData.UnderLineThickness;
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	iFxf->UlineThickness=VariousData.UnderLineThickness;
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	iFxf->nominal_ascent=(VariousData.Hgt/*+VariousData.LineSpacing*/)-iFxf->descent;
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	iFxf->MaxChrWidth=0;
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	iFxf->cell_height=VariousData.Hgt;
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	for(unsigned int chNum=0;chNum<MAX_CHARS;chNum++)
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		{
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		if(iMapSpace)
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			iInputFile.seekg((*(iMapSpace+chNum)<<2)+LetterOffsBase);
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		else
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			iInputFile.seekg(LetterOffs);
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		iInputFile.read((char*)&lettertabledata,sizeof(LetterTableData));
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		if(version==1)
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			{
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			lettertabledata.width>>=4;
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			iInputFile.read((char*)&letterdata,sizeof(LetterData));
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			LetterOffs+=sizeof(LetterData);
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			}
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		LetterOffs+=sizeof(LetterTableData);
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		iFxf->chr[chNum]=0;
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// char 0 in EFF fonts have a garbage offset so ignore them.
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//		if(letterdata.offset)
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		if(lettertabledata.offset && chNum>0)
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			{
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			seekpos=LetterOffsBase+lettertabledata.offset;
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			iInputFile.seekg(seekpos);
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			if(version==2)
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				iInputFile.read((char*)&letterdata,sizeof(LetterData));
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			if(first)
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				{
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				iFxf->FirstChr=chNum;
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				first=0;
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				}
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			iFxf->n_chars=chNum+1;
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			iFxf->chr[chNum]=pFxf;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   109
			pFxf->offset=offset;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   110
			pFxf->xOffset=letterdata.blx;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   111
			pFxf->yOffset=letterdata.rHgt+letterdata.bly;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   112
			pFxf->width=letterdata.rWid;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   113
			if(chNum=='i')
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   114
				widthofi=pFxf->width;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   115
			if(chNum=='M')
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   116
				widthofM=pFxf->width;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   117
			pFxf->ByteWid=((pFxf->width+15)>>3)&(~1);
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   118
			pFxf->height=letterdata.rHgt;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   119
			pFxf->move=lettertabledata.width;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   120
			int chWid=letterdata.rWid;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   121
			if(chWid>iFxf->MaxChrWidth)
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   122
			    iFxf->MaxChrWidth=chWid;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   123
			ReadSize=(letterdata.rWid*letterdata.rHgt+7)>>3;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   124
			iInputFile.read(inBuffer,ReadSize);
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   125
			bitpos=0;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   126
			pSrc=(unsigned short int*)inBuffer;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   127
			for(int i=0;i<letterdata.rHgt;i++)
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   128
			    {
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   129
			    pDest=(unsigned short int*)outbuffer;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   130
			    for(int j=0;j<pFxf->ByteWid;j+=2)
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   131
			        {
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   132
			        len1=16-bitpos;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   133
			        *pDest=(unsigned short int)((*pSrc)>>bitpos);
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   134
			        widToGo=letterdata.rWid-(j<<3);
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   135
			        if (len1>widToGo)
f58d6ec98e88 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   136
			            {
f58d6ec98e88 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   137
			            len1=widToGo;
f58d6ec98e88 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   138
			            len2=0;
f58d6ec98e88 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   139
			            }
f58d6ec98e88 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   140
			        else
f58d6ec98e88 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   141
			            {
f58d6ec98e88 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   142
			            pSrc++;
f58d6ec98e88 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   143
			            if ((len1+bitpos)>widToGo)
f58d6ec98e88 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   144
			                len2=widToGo-len1;
f58d6ec98e88 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   145
			            else
f58d6ec98e88 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   146
			                len2=bitpos;
f58d6ec98e88 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   147
			            if (len2)
f58d6ec98e88 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   148
			                *pDest|= (*pSrc)<<(16-bitpos);
f58d6ec98e88 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   149
			            }
f58d6ec98e88 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   150
			        *pDest&=0xFFFF>>(16-len2-len1);
f58d6ec98e88 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   151
			        bitpos=(bitpos+len1+len2)&0xF;
f58d6ec98e88 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   152
			        pDest++;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   153
			        }
f58d6ec98e88 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   154
				memcpy(iFontCompiler->FontStore()+offset+pFxf->ByteWid*(letterdata.rHgt-i-1),outbuffer,pFxf->ByteWid);
f58d6ec98e88 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   155
			    }
f58d6ec98e88 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   156
			offset+=pFxf->ByteWid*letterdata.rHgt;
f58d6ec98e88 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   157
			}
f58d6ec98e88 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   158
        pFxf++;
f58d6ec98e88 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   159
        }
f58d6ec98e88 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   160
	if(widthofi && widthofM)
f58d6ec98e88 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   161
		iFxf->iProportional=(widthofi!=widthofM);
f58d6ec98e88 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   162
	return(NoError);
f58d6ec98e88 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   163
    }
f58d6ec98e88 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   164