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See the 18*cdf0e10cSrcweir * GNU Lesser General Public License version 3 for more details 19*cdf0e10cSrcweir * (a copy is included in the LICENSE file that accompanied this code). 20*cdf0e10cSrcweir * 21*cdf0e10cSrcweir * You should have received a copy of the GNU Lesser General Public License 22*cdf0e10cSrcweir * version 3 along with OpenOffice.org. If not, see 23*cdf0e10cSrcweir * <http://www.openoffice.org/license.html> 24*cdf0e10cSrcweir * for a copy of the LGPLv3 License. 25*cdf0e10cSrcweir * 26*cdf0e10cSrcweir ************************************************************************/ 27*cdf0e10cSrcweir 28*cdf0e10cSrcweir // MARKER(update_precomp.py): autogen include statement, do not remove 29*cdf0e10cSrcweir #include "precompiled_vcl.hxx" 30*cdf0e10cSrcweir 31*cdf0e10cSrcweir #include <tools/debug.hxx> 32*cdf0e10cSrcweir 33*cdf0e10cSrcweir #include <fontsubset.hxx> 34*cdf0e10cSrcweir #include <sft.hxx> 35*cdf0e10cSrcweir 36*cdf0e10cSrcweir // ==================================================================== 37*cdf0e10cSrcweir 38*cdf0e10cSrcweir FontSubsetInfo::FontSubsetInfo() 39*cdf0e10cSrcweir : m_nAscent( 0) 40*cdf0e10cSrcweir , m_nDescent( 0) 41*cdf0e10cSrcweir , m_nCapHeight( 0) 42*cdf0e10cSrcweir , m_nFontType( FontSubsetInfo::NO_FONT) 43*cdf0e10cSrcweir , mpInFontBytes( NULL) 44*cdf0e10cSrcweir , mnInByteLength( 0) 45*cdf0e10cSrcweir , meInFontType( FontSubsetInfo::NO_FONT) 46*cdf0e10cSrcweir , mpSftTTFont( NULL) 47*cdf0e10cSrcweir {} 48*cdf0e10cSrcweir 49*cdf0e10cSrcweir // -------------------------------------------------------------------- 50*cdf0e10cSrcweir 51*cdf0e10cSrcweir FontSubsetInfo::~FontSubsetInfo() 52*cdf0e10cSrcweir {} 53*cdf0e10cSrcweir 54*cdf0e10cSrcweir // -------------------------------------------------------------------- 55*cdf0e10cSrcweir 56*cdf0e10cSrcweir // prepare subsetting for fonts where the input font file is mapped 57*cdf0e10cSrcweir bool FontSubsetInfo::LoadFont( 58*cdf0e10cSrcweir FontSubsetInfo::FontType eInFontType, 59*cdf0e10cSrcweir const unsigned char* pInFontBytes, int nInByteLength) 60*cdf0e10cSrcweir { 61*cdf0e10cSrcweir DBG_ASSERT( (mpSftTTFont == NULL), "Subset from SFT and from mapped font-file requested"); 62*cdf0e10cSrcweir meInFontType = eInFontType; 63*cdf0e10cSrcweir mpInFontBytes = pInFontBytes; 64*cdf0e10cSrcweir mnInByteLength = nInByteLength; 65*cdf0e10cSrcweir return (mnInByteLength > 0); 66*cdf0e10cSrcweir } 67*cdf0e10cSrcweir 68*cdf0e10cSrcweir // -------------------------------------------------------------------- 69*cdf0e10cSrcweir 70*cdf0e10cSrcweir // prepare subsetting for fonts that are known to the SFT-parser 71*cdf0e10cSrcweir bool FontSubsetInfo::LoadFont( vcl::_TrueTypeFont* pSftTTFont ) 72*cdf0e10cSrcweir { 73*cdf0e10cSrcweir DBG_ASSERT( (mpInFontBytes == NULL), "Subset from SFT and from mapped font-file requested"); 74*cdf0e10cSrcweir mpSftTTFont = pSftTTFont; 75*cdf0e10cSrcweir meInFontType = ANY_SFNT; 76*cdf0e10cSrcweir return (mpSftTTFont == NULL); 77*cdf0e10cSrcweir } 78*cdf0e10cSrcweir 79*cdf0e10cSrcweir // -------------------------------------------------------------------- 80*cdf0e10cSrcweir 81*cdf0e10cSrcweir bool FontSubsetInfo::CreateFontSubset( 82*cdf0e10cSrcweir int nReqFontTypeMask, 83*cdf0e10cSrcweir FILE* pOutFile, const char* pReqFontName, 84*cdf0e10cSrcweir const long* pReqGlyphIds, const sal_uInt8* pReqEncodedIds, int nReqGlyphCount, 85*cdf0e10cSrcweir sal_Int32* pOutGlyphWidths) 86*cdf0e10cSrcweir { 87*cdf0e10cSrcweir // prepare request details needed by all underlying subsetters 88*cdf0e10cSrcweir mnReqFontTypeMask = nReqFontTypeMask; 89*cdf0e10cSrcweir mpOutFile = pOutFile; 90*cdf0e10cSrcweir mpReqFontName = pReqFontName; 91*cdf0e10cSrcweir mpReqGlyphIds = pReqGlyphIds; 92*cdf0e10cSrcweir mpReqEncodedIds = pReqEncodedIds; 93*cdf0e10cSrcweir mnReqGlyphCount = nReqGlyphCount; 94*cdf0e10cSrcweir 95*cdf0e10cSrcweir // TODO: move the glyphid/encid/notdef reshuffling from the callers to here 96*cdf0e10cSrcweir 97*cdf0e10cSrcweir // dispatch to underlying subsetters 98*cdf0e10cSrcweir bool bOK = false; 99*cdf0e10cSrcweir 100*cdf0e10cSrcweir // TODO: better match available input-type to possible subset-types 101*cdf0e10cSrcweir switch( meInFontType) { 102*cdf0e10cSrcweir case SFNT_TTF: 103*cdf0e10cSrcweir case SFNT_CFF: 104*cdf0e10cSrcweir case ANY_SFNT: 105*cdf0e10cSrcweir bOK = CreateFontSubsetFromSfnt( pOutGlyphWidths); 106*cdf0e10cSrcweir break; 107*cdf0e10cSrcweir case CFF_FONT: 108*cdf0e10cSrcweir bOK = CreateFontSubsetFromCff( pOutGlyphWidths); 109*cdf0e10cSrcweir break; 110*cdf0e10cSrcweir case TYPE1_PFA: 111*cdf0e10cSrcweir case TYPE1_PFB: 112*cdf0e10cSrcweir case ANY_TYPE1: 113*cdf0e10cSrcweir bOK = CreateFontSubsetFromType1( pOutGlyphWidths); 114*cdf0e10cSrcweir break; 115*cdf0e10cSrcweir // fall trough 116*cdf0e10cSrcweir case NO_FONT: 117*cdf0e10cSrcweir // fall trough 118*cdf0e10cSrcweir default: 119*cdf0e10cSrcweir DBG_ERROR( "unhandled type in CreateFontSubset()"); 120*cdf0e10cSrcweir break; 121*cdf0e10cSrcweir } 122*cdf0e10cSrcweir 123*cdf0e10cSrcweir return bOK; 124*cdf0e10cSrcweir } 125*cdf0e10cSrcweir 126*cdf0e10cSrcweir // -------------------------------------------------------------------- 127*cdf0e10cSrcweir 128*cdf0e10cSrcweir // TODO: move function to sft.cxx to replace dummy implementation 129*cdf0e10cSrcweir bool FontSubsetInfo::CreateFontSubsetFromSfnt( sal_Int32* pOutGlyphWidths ) 130*cdf0e10cSrcweir { 131*cdf0e10cSrcweir // handle SFNT_CFF fonts 132*cdf0e10cSrcweir int nCffLength = 0; 133*cdf0e10cSrcweir const sal_uInt8* pCffBytes = NULL; 134*cdf0e10cSrcweir if( GetSfntTable( mpSftTTFont, O_CFF, &pCffBytes, &nCffLength)) 135*cdf0e10cSrcweir { 136*cdf0e10cSrcweir LoadFont( CFF_FONT, pCffBytes, nCffLength); 137*cdf0e10cSrcweir const bool bOK = CreateFontSubsetFromCff( pOutGlyphWidths); 138*cdf0e10cSrcweir return bOK; 139*cdf0e10cSrcweir } 140*cdf0e10cSrcweir 141*cdf0e10cSrcweir // handle SFNT_TTF fonts 142*cdf0e10cSrcweir // by forwarding the subset request to AG's sft subsetter 143*cdf0e10cSrcweir #if 1 // TODO: remove conversion tp 16bit glyphids when sft-subsetter has been updated 144*cdf0e10cSrcweir sal_uInt16 aShortGlyphIds[256]; 145*cdf0e10cSrcweir for( int i = 0; i < mnReqGlyphCount; ++i) 146*cdf0e10cSrcweir aShortGlyphIds[i] = (sal_uInt16)mpReqGlyphIds[i]; 147*cdf0e10cSrcweir // remove const_cast when sft-subsetter is const-correct 148*cdf0e10cSrcweir sal_uInt8* pEncArray = const_cast<sal_uInt8*>( mpReqEncodedIds ); 149*cdf0e10cSrcweir #endif 150*cdf0e10cSrcweir int nSFTErr = vcl::SF_BADARG; 151*cdf0e10cSrcweir if( (mnReqFontTypeMask & TYPE42_FONT) != 0 ) 152*cdf0e10cSrcweir { 153*cdf0e10cSrcweir nSFTErr = CreateT42FromTTGlyphs( mpSftTTFont, mpOutFile, mpReqFontName, 154*cdf0e10cSrcweir aShortGlyphIds, pEncArray, mnReqGlyphCount ); 155*cdf0e10cSrcweir } 156*cdf0e10cSrcweir else if( (mnReqFontTypeMask & TYPE3_FONT) != 0 ) 157*cdf0e10cSrcweir { 158*cdf0e10cSrcweir nSFTErr = CreateT3FromTTGlyphs( mpSftTTFont, mpOutFile, mpReqFontName, 159*cdf0e10cSrcweir aShortGlyphIds, pEncArray, mnReqGlyphCount, 160*cdf0e10cSrcweir 0 /* 0 = horizontal, 1 = vertical */ ); 161*cdf0e10cSrcweir } 162*cdf0e10cSrcweir else if( (mnReqFontTypeMask & SFNT_TTF) != 0 ) 163*cdf0e10cSrcweir { 164*cdf0e10cSrcweir // TODO: use CreateTTFromTTGlyphs() 165*cdf0e10cSrcweir // TODO: move functionality from callers here 166*cdf0e10cSrcweir } 167*cdf0e10cSrcweir 168*cdf0e10cSrcweir return (nSFTErr != vcl::SF_OK); 169*cdf0e10cSrcweir } 170*cdf0e10cSrcweir 171*cdf0e10cSrcweir // -------------------------------------------------------------------- 172*cdf0e10cSrcweir 173*cdf0e10cSrcweir // TODO: replace dummy implementation 174*cdf0e10cSrcweir bool FontSubsetInfo::CreateFontSubsetFromType1( sal_Int32* pOutGlyphWidths) 175*cdf0e10cSrcweir { 176*cdf0e10cSrcweir #if 0 177*cdf0e10cSrcweir // TODO: replace dummy implementation when someone needs this 178*cdf0e10cSrcweir #else 179*cdf0e10cSrcweir (void)pOutGlyphWidths; 180*cdf0e10cSrcweir fprintf(stderr,"CreateFontSubsetFromType1: replace dummy implementation\n"); 181*cdf0e10cSrcweir #endif 182*cdf0e10cSrcweir return false; 183*cdf0e10cSrcweir } 184*cdf0e10cSrcweir 185*cdf0e10cSrcweir // ==================================================================== 186*cdf0e10cSrcweir 187