LCOV - code coverage report
Current view: top level - libreoffice/vcl/source/fontsubset - fontsubset.cxx (source / functions) Hit Total Coverage
Test: libreoffice_filtered.info Lines: 0 51 0.0 %
Date: 2012-12-27 Functions: 0 8 0.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : 
      21             : #include <tools/debug.hxx>
      22             : 
      23             : #include <fontsubset.hxx>
      24             : #include <sft.hxx>
      25             : 
      26             : // ====================================================================
      27             : 
      28           0 : FontSubsetInfo::FontSubsetInfo()
      29             : :   m_nAscent( 0)
      30             : ,   m_nDescent( 0)
      31             : ,   m_nCapHeight( 0)
      32             : ,   m_nFontType( FontSubsetInfo::NO_FONT)
      33             : ,   mpInFontBytes( NULL)
      34             : ,   mnInByteLength( 0)
      35             : ,   meInFontType( FontSubsetInfo::NO_FONT)
      36           0 : ,   mpSftTTFont( NULL)
      37           0 : {}
      38             : 
      39             : // --------------------------------------------------------------------
      40             : 
      41           0 : FontSubsetInfo::~FontSubsetInfo()
      42           0 : {}
      43             : 
      44             : // --------------------------------------------------------------------
      45             : 
      46             : // prepare subsetting for fonts where the input font file is mapped
      47           0 : bool FontSubsetInfo::LoadFont(
      48             :     FontSubsetInfo::FontType eInFontType,
      49             :     const unsigned char* pInFontBytes, int nInByteLength)
      50             : {
      51             :     DBG_ASSERT( (mpSftTTFont == NULL), "Subset from SFT and from mapped font-file requested");
      52           0 :     meInFontType = eInFontType;
      53           0 :     mpInFontBytes = pInFontBytes;
      54           0 :     mnInByteLength = nInByteLength;
      55           0 :     return (mnInByteLength > 0);
      56             : }
      57             : 
      58             : // --------------------------------------------------------------------
      59             : 
      60             : // prepare subsetting for fonts that are known to the SFT-parser
      61           0 : bool FontSubsetInfo::LoadFont( vcl::_TrueTypeFont* pSftTTFont )
      62             : {
      63             :     DBG_ASSERT( (mpInFontBytes == NULL), "Subset from SFT and from mapped font-file requested");
      64           0 :     mpSftTTFont = pSftTTFont;
      65           0 :     meInFontType = ANY_SFNT;
      66           0 :     return (mpSftTTFont == NULL);
      67             : }
      68             : 
      69             : // --------------------------------------------------------------------
      70             : 
      71           0 : bool FontSubsetInfo::CreateFontSubset(
      72             :     int nReqFontTypeMask,
      73             :     FILE* pOutFile, const char* pReqFontName,
      74             :     const long* pReqGlyphIds, const sal_uInt8* pReqEncodedIds, int nReqGlyphCount,
      75             :     sal_Int32* pOutGlyphWidths)
      76             : {
      77             :     // prepare request details needed by all underlying subsetters
      78           0 :     mnReqFontTypeMask = nReqFontTypeMask;
      79           0 :     mpOutFile       = pOutFile;
      80           0 :     mpReqFontName   = pReqFontName;
      81           0 :     mpReqGlyphIds   = pReqGlyphIds;
      82           0 :     mpReqEncodedIds = pReqEncodedIds;
      83           0 :     mnReqGlyphCount = nReqGlyphCount;
      84             : 
      85             :     // TODO: move the glyphid/encid/notdef reshuffling from the callers to here
      86             : 
      87             :     // dispatch to underlying subsetters
      88           0 :     bool bOK = false;
      89             : 
      90             :     // TODO: better match available input-type to possible subset-types
      91           0 :     switch( meInFontType) {
      92             :     case SFNT_TTF:
      93             :     case SFNT_CFF:
      94             :     case ANY_SFNT:
      95           0 :         bOK = CreateFontSubsetFromSfnt( pOutGlyphWidths);
      96           0 :         break;
      97             :     case CFF_FONT:
      98           0 :         bOK = CreateFontSubsetFromCff( pOutGlyphWidths);
      99           0 :         break;
     100             :     case TYPE1_PFA:
     101             :     case TYPE1_PFB:
     102             :     case ANY_TYPE1:
     103           0 :         bOK = CreateFontSubsetFromType1( pOutGlyphWidths);
     104           0 :         break;
     105             :         // fall trough
     106             :     case NO_FONT:
     107             :         // fall trough
     108             :     default:
     109             :         OSL_FAIL( "unhandled type in CreateFontSubset()");
     110           0 :         break;
     111             :     }
     112             : 
     113           0 :     return bOK;
     114             : }
     115             : 
     116             : // --------------------------------------------------------------------
     117             : 
     118             : // TODO: move function to sft.cxx to replace dummy implementation
     119           0 : bool FontSubsetInfo::CreateFontSubsetFromSfnt( sal_Int32* pOutGlyphWidths )
     120             : {
     121             :     // handle SFNT_CFF fonts
     122           0 :     int nCffLength = 0;
     123           0 :     const sal_uInt8* pCffBytes = NULL;
     124           0 :     if( GetSfntTable( mpSftTTFont, O_CFF, &pCffBytes, &nCffLength))
     125             :     {
     126           0 :         LoadFont( CFF_FONT, pCffBytes, nCffLength);
     127           0 :         const bool bOK = CreateFontSubsetFromCff( pOutGlyphWidths);
     128           0 :         return bOK;
     129             :     }
     130             : 
     131             :     // handle SFNT_TTF fonts
     132             :     // by forwarding the subset request to AG's sft subsetter
     133             : #if 1 // TODO: remove conversion tp 16bit glyphids when sft-subsetter has been updated
     134             :     sal_uInt16 aShortGlyphIds[256];
     135           0 :     for( int i = 0; i < mnReqGlyphCount; ++i)
     136           0 :         aShortGlyphIds[i] = (sal_uInt16)mpReqGlyphIds[i];
     137             :     // remove const_cast when sft-subsetter is const-correct
     138           0 :     sal_uInt8* pEncArray = const_cast<sal_uInt8*>( mpReqEncodedIds );
     139             : #endif
     140           0 :     int nSFTErr = vcl::SF_BADARG;
     141           0 :     if( (mnReqFontTypeMask & TYPE42_FONT) != 0 )
     142             :     {
     143             :         nSFTErr = CreateT42FromTTGlyphs( mpSftTTFont, mpOutFile, mpReqFontName,
     144           0 :             aShortGlyphIds, pEncArray, mnReqGlyphCount );
     145             :     }
     146           0 :     else if( (mnReqFontTypeMask & TYPE3_FONT) != 0 )
     147             :     {
     148             :         nSFTErr = CreateT3FromTTGlyphs( mpSftTTFont, mpOutFile, mpReqFontName,
     149             :             aShortGlyphIds, pEncArray, mnReqGlyphCount,
     150           0 :                     0 /* 0 = horizontal, 1 = vertical */ );
     151             :     }
     152           0 :     else if( (mnReqFontTypeMask & SFNT_TTF) != 0 )
     153             :     {
     154             :         // TODO: use CreateTTFromTTGlyphs()
     155             :         // TODO: move functionality from callers here
     156             :     }
     157             : 
     158           0 :     return (nSFTErr != vcl::SF_OK);
     159             : }
     160             : 
     161             : // --------------------------------------------------------------------
     162             : 
     163             : // TODO: replace dummy implementation
     164           0 : bool FontSubsetInfo::CreateFontSubsetFromType1( sal_Int32* pOutGlyphWidths)
     165             : {
     166             :     (void)pOutGlyphWidths;
     167           0 :     fprintf(stderr,"CreateFontSubsetFromType1: replace dummy implementation\n");
     168           0 :     return false;
     169             : }
     170             : 
     171             : // ====================================================================
     172             : 
     173             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

Generated by: LCOV version 1.10