1*9f62ea84SAndrew Rist /************************************************************** 2cdf0e10cSrcweir * 3*9f62ea84SAndrew Rist * Licensed to the Apache Software Foundation (ASF) under one 4*9f62ea84SAndrew Rist * or more contributor license agreements. See the NOTICE file 5*9f62ea84SAndrew Rist * distributed with this work for additional information 6*9f62ea84SAndrew Rist * regarding copyright ownership. The ASF licenses this file 7*9f62ea84SAndrew Rist * to you under the Apache License, Version 2.0 (the 8*9f62ea84SAndrew Rist * "License"); you may not use this file except in compliance 9*9f62ea84SAndrew Rist * with the License. You may obtain a copy of the License at 10*9f62ea84SAndrew Rist * 11*9f62ea84SAndrew Rist * http://www.apache.org/licenses/LICENSE-2.0 12*9f62ea84SAndrew Rist * 13*9f62ea84SAndrew Rist * Unless required by applicable law or agreed to in writing, 14*9f62ea84SAndrew Rist * software distributed under the License is distributed on an 15*9f62ea84SAndrew Rist * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16*9f62ea84SAndrew Rist * KIND, either express or implied. See the License for the 17*9f62ea84SAndrew Rist * specific language governing permissions and limitations 18*9f62ea84SAndrew Rist * under the License. 19*9f62ea84SAndrew Rist * 20*9f62ea84SAndrew Rist *************************************************************/ 21*9f62ea84SAndrew Rist 22*9f62ea84SAndrew Rist 23cdf0e10cSrcweir 24cdf0e10cSrcweir // MARKER(update_precomp.py): autogen include statement, do not remove 25cdf0e10cSrcweir #include "precompiled_vcl.hxx" 26cdf0e10cSrcweir 27cdf0e10cSrcweir #include <tools/debug.hxx> 28cdf0e10cSrcweir 29cdf0e10cSrcweir #include <fontsubset.hxx> 30cdf0e10cSrcweir #include <sft.hxx> 31cdf0e10cSrcweir 32cdf0e10cSrcweir // ==================================================================== 33cdf0e10cSrcweir 34cdf0e10cSrcweir FontSubsetInfo::FontSubsetInfo() 35cdf0e10cSrcweir : m_nAscent( 0) 36cdf0e10cSrcweir , m_nDescent( 0) 37cdf0e10cSrcweir , m_nCapHeight( 0) 38cdf0e10cSrcweir , m_nFontType( FontSubsetInfo::NO_FONT) 39cdf0e10cSrcweir , mpInFontBytes( NULL) 40cdf0e10cSrcweir , mnInByteLength( 0) 41cdf0e10cSrcweir , meInFontType( FontSubsetInfo::NO_FONT) 42cdf0e10cSrcweir , mpSftTTFont( NULL) 43cdf0e10cSrcweir {} 44cdf0e10cSrcweir 45cdf0e10cSrcweir // -------------------------------------------------------------------- 46cdf0e10cSrcweir 47cdf0e10cSrcweir FontSubsetInfo::~FontSubsetInfo() 48cdf0e10cSrcweir {} 49cdf0e10cSrcweir 50cdf0e10cSrcweir // -------------------------------------------------------------------- 51cdf0e10cSrcweir 52cdf0e10cSrcweir // prepare subsetting for fonts where the input font file is mapped 53cdf0e10cSrcweir bool FontSubsetInfo::LoadFont( 54cdf0e10cSrcweir FontSubsetInfo::FontType eInFontType, 55cdf0e10cSrcweir const unsigned char* pInFontBytes, int nInByteLength) 56cdf0e10cSrcweir { 57cdf0e10cSrcweir DBG_ASSERT( (mpSftTTFont == NULL), "Subset from SFT and from mapped font-file requested"); 58cdf0e10cSrcweir meInFontType = eInFontType; 59cdf0e10cSrcweir mpInFontBytes = pInFontBytes; 60cdf0e10cSrcweir mnInByteLength = nInByteLength; 61cdf0e10cSrcweir return (mnInByteLength > 0); 62cdf0e10cSrcweir } 63cdf0e10cSrcweir 64cdf0e10cSrcweir // -------------------------------------------------------------------- 65cdf0e10cSrcweir 66cdf0e10cSrcweir // prepare subsetting for fonts that are known to the SFT-parser 67cdf0e10cSrcweir bool FontSubsetInfo::LoadFont( vcl::_TrueTypeFont* pSftTTFont ) 68cdf0e10cSrcweir { 69cdf0e10cSrcweir DBG_ASSERT( (mpInFontBytes == NULL), "Subset from SFT and from mapped font-file requested"); 70cdf0e10cSrcweir mpSftTTFont = pSftTTFont; 71cdf0e10cSrcweir meInFontType = ANY_SFNT; 72cdf0e10cSrcweir return (mpSftTTFont == NULL); 73cdf0e10cSrcweir } 74cdf0e10cSrcweir 75cdf0e10cSrcweir // -------------------------------------------------------------------- 76cdf0e10cSrcweir 77cdf0e10cSrcweir bool FontSubsetInfo::CreateFontSubset( 78cdf0e10cSrcweir int nReqFontTypeMask, 79cdf0e10cSrcweir FILE* pOutFile, const char* pReqFontName, 80cdf0e10cSrcweir const long* pReqGlyphIds, const sal_uInt8* pReqEncodedIds, int nReqGlyphCount, 81cdf0e10cSrcweir sal_Int32* pOutGlyphWidths) 82cdf0e10cSrcweir { 83cdf0e10cSrcweir // prepare request details needed by all underlying subsetters 84cdf0e10cSrcweir mnReqFontTypeMask = nReqFontTypeMask; 85cdf0e10cSrcweir mpOutFile = pOutFile; 86cdf0e10cSrcweir mpReqFontName = pReqFontName; 87cdf0e10cSrcweir mpReqGlyphIds = pReqGlyphIds; 88cdf0e10cSrcweir mpReqEncodedIds = pReqEncodedIds; 89cdf0e10cSrcweir mnReqGlyphCount = nReqGlyphCount; 90cdf0e10cSrcweir 91cdf0e10cSrcweir // TODO: move the glyphid/encid/notdef reshuffling from the callers to here 92cdf0e10cSrcweir 93cdf0e10cSrcweir // dispatch to underlying subsetters 94cdf0e10cSrcweir bool bOK = false; 95cdf0e10cSrcweir 96cdf0e10cSrcweir // TODO: better match available input-type to possible subset-types 97cdf0e10cSrcweir switch( meInFontType) { 98cdf0e10cSrcweir case SFNT_TTF: 99cdf0e10cSrcweir case SFNT_CFF: 100cdf0e10cSrcweir case ANY_SFNT: 101cdf0e10cSrcweir bOK = CreateFontSubsetFromSfnt( pOutGlyphWidths); 102cdf0e10cSrcweir break; 103cdf0e10cSrcweir case CFF_FONT: 104cdf0e10cSrcweir bOK = CreateFontSubsetFromCff( pOutGlyphWidths); 105cdf0e10cSrcweir break; 106cdf0e10cSrcweir case TYPE1_PFA: 107cdf0e10cSrcweir case TYPE1_PFB: 108cdf0e10cSrcweir case ANY_TYPE1: 109cdf0e10cSrcweir bOK = CreateFontSubsetFromType1( pOutGlyphWidths); 110cdf0e10cSrcweir break; 111cdf0e10cSrcweir // fall trough 112cdf0e10cSrcweir case NO_FONT: 113cdf0e10cSrcweir // fall trough 114cdf0e10cSrcweir default: 115cdf0e10cSrcweir DBG_ERROR( "unhandled type in CreateFontSubset()"); 116cdf0e10cSrcweir break; 117cdf0e10cSrcweir } 118cdf0e10cSrcweir 119cdf0e10cSrcweir return bOK; 120cdf0e10cSrcweir } 121cdf0e10cSrcweir 122cdf0e10cSrcweir // -------------------------------------------------------------------- 123cdf0e10cSrcweir 124cdf0e10cSrcweir // TODO: move function to sft.cxx to replace dummy implementation 125cdf0e10cSrcweir bool FontSubsetInfo::CreateFontSubsetFromSfnt( sal_Int32* pOutGlyphWidths ) 126cdf0e10cSrcweir { 127cdf0e10cSrcweir // handle SFNT_CFF fonts 128cdf0e10cSrcweir int nCffLength = 0; 129cdf0e10cSrcweir const sal_uInt8* pCffBytes = NULL; 130cdf0e10cSrcweir if( GetSfntTable( mpSftTTFont, O_CFF, &pCffBytes, &nCffLength)) 131cdf0e10cSrcweir { 132cdf0e10cSrcweir LoadFont( CFF_FONT, pCffBytes, nCffLength); 133cdf0e10cSrcweir const bool bOK = CreateFontSubsetFromCff( pOutGlyphWidths); 134cdf0e10cSrcweir return bOK; 135cdf0e10cSrcweir } 136cdf0e10cSrcweir 137cdf0e10cSrcweir // handle SFNT_TTF fonts 138cdf0e10cSrcweir // by forwarding the subset request to AG's sft subsetter 139cdf0e10cSrcweir #if 1 // TODO: remove conversion tp 16bit glyphids when sft-subsetter has been updated 140cdf0e10cSrcweir sal_uInt16 aShortGlyphIds[256]; 141cdf0e10cSrcweir for( int i = 0; i < mnReqGlyphCount; ++i) 142cdf0e10cSrcweir aShortGlyphIds[i] = (sal_uInt16)mpReqGlyphIds[i]; 143cdf0e10cSrcweir // remove const_cast when sft-subsetter is const-correct 144cdf0e10cSrcweir sal_uInt8* pEncArray = const_cast<sal_uInt8*>( mpReqEncodedIds ); 145cdf0e10cSrcweir #endif 146cdf0e10cSrcweir int nSFTErr = vcl::SF_BADARG; 147cdf0e10cSrcweir if( (mnReqFontTypeMask & TYPE42_FONT) != 0 ) 148cdf0e10cSrcweir { 149cdf0e10cSrcweir nSFTErr = CreateT42FromTTGlyphs( mpSftTTFont, mpOutFile, mpReqFontName, 150cdf0e10cSrcweir aShortGlyphIds, pEncArray, mnReqGlyphCount ); 151cdf0e10cSrcweir } 152cdf0e10cSrcweir else if( (mnReqFontTypeMask & TYPE3_FONT) != 0 ) 153cdf0e10cSrcweir { 154cdf0e10cSrcweir nSFTErr = CreateT3FromTTGlyphs( mpSftTTFont, mpOutFile, mpReqFontName, 155cdf0e10cSrcweir aShortGlyphIds, pEncArray, mnReqGlyphCount, 156cdf0e10cSrcweir 0 /* 0 = horizontal, 1 = vertical */ ); 157cdf0e10cSrcweir } 158cdf0e10cSrcweir else if( (mnReqFontTypeMask & SFNT_TTF) != 0 ) 159cdf0e10cSrcweir { 160cdf0e10cSrcweir // TODO: use CreateTTFromTTGlyphs() 161cdf0e10cSrcweir // TODO: move functionality from callers here 162cdf0e10cSrcweir } 163cdf0e10cSrcweir 164cdf0e10cSrcweir return (nSFTErr != vcl::SF_OK); 165cdf0e10cSrcweir } 166cdf0e10cSrcweir 167cdf0e10cSrcweir // -------------------------------------------------------------------- 168cdf0e10cSrcweir 169cdf0e10cSrcweir // TODO: replace dummy implementation 170cdf0e10cSrcweir bool FontSubsetInfo::CreateFontSubsetFromType1( sal_Int32* pOutGlyphWidths) 171cdf0e10cSrcweir { 172cdf0e10cSrcweir #if 0 173cdf0e10cSrcweir // TODO: replace dummy implementation when someone needs this 174cdf0e10cSrcweir #else 175cdf0e10cSrcweir (void)pOutGlyphWidths; 176cdf0e10cSrcweir fprintf(stderr,"CreateFontSubsetFromType1: replace dummy implementation\n"); 177cdf0e10cSrcweir #endif 178cdf0e10cSrcweir return false; 179cdf0e10cSrcweir } 180cdf0e10cSrcweir 181cdf0e10cSrcweir // ==================================================================== 182cdf0e10cSrcweir 183