diff options
author | Denis Bitouzé <dbitouze@wanadoo.fr> | 2021-02-25 18:23:07 +0000 |
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committer | Denis Bitouzé <dbitouze@wanadoo.fr> | 2021-02-25 18:23:07 +0000 |
commit | c6101f91d071883b48b1b4b51e5eba0f36d9a78d (patch) | |
tree | 1bf7f5a881d7a4f5c5bf59d0b2821943dd822372 /Build/source/libs/graphite2/graphite2-src/src/Silf.cpp | |
parent | 07ee7222e389b0777456b427a55c22d0e6ffd267 (diff) |
French translation for tlmgr updated
git-svn-id: svn://tug.org/texlive/trunk@57912 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/libs/graphite2/graphite2-src/src/Silf.cpp')
-rw-r--r-- | Build/source/libs/graphite2/graphite2-src/src/Silf.cpp | 439 |
1 files changed, 0 insertions, 439 deletions
diff --git a/Build/source/libs/graphite2/graphite2-src/src/Silf.cpp b/Build/source/libs/graphite2/graphite2-src/src/Silf.cpp deleted file mode 100644 index 44d3c96171d..00000000000 --- a/Build/source/libs/graphite2/graphite2-src/src/Silf.cpp +++ /dev/null @@ -1,439 +0,0 @@ -/* GRAPHITE2 LICENSING - - Copyright 2010, SIL International - All rights reserved. - - This library is free software; you can redistribute it and/or modify - it under the terms of the GNU Lesser General Public License as published - by the Free Software Foundation; either version 2.1 of License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should also have received a copy of the GNU Lesser General Public - License along with this library in the file named "LICENSE". - If not, write to the Free Software Foundation, 51 Franklin Street, - Suite 500, Boston, MA 02110-1335, USA or visit their web page on the - internet at http://www.fsf.org/licenses/lgpl.html. - -Alternatively, the contents of this file may be used under the terms of the -Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public -License, as published by the Free Software Foundation, either version 2 -of the License or (at your option) any later version. -*/ -#include <cstdlib> -#include "graphite2/Segment.h" -#include "inc/debug.h" -#include "inc/Endian.h" -#include "inc/Silf.h" -#include "inc/Segment.h" -#include "inc/Rule.h" -#include "inc/Error.h" - - -using namespace graphite2; - -namespace { static const uint32 ERROROFFSET = 0xFFFFFFFF; } - -Silf::Silf() throw() -: m_passes(0), - m_pseudos(0), - m_classOffsets(0), - m_classData(0), - m_justs(0), - m_numPasses(0), - m_numJusts(0), - m_sPass(0), - m_pPass(0), - m_jPass(0), - m_bPass(0), - m_flags(0), - m_dir(0), - m_aPseudo(0), - m_aBreak(0), - m_aUser(0), - m_aBidi(0), - m_aMirror(0), - m_aPassBits(0), - m_iMaxComp(0), - m_aCollision(0), - m_aLig(0), - m_numPseudo(0), - m_nClass(0), - m_nLinear(0), - m_gEndLine(0) -{ - memset(&m_silfinfo, 0, sizeof m_silfinfo); -} - -Silf::~Silf() throw() -{ - releaseBuffers(); -} - -void Silf::releaseBuffers() throw() -{ - delete [] m_passes; - delete [] m_pseudos; - free(m_classOffsets); - free(m_classData); - free(m_justs); - m_passes= 0; - m_pseudos = 0; - m_classOffsets = 0; - m_classData = 0; - m_justs = 0; -} - - -bool Silf::readGraphite(const byte * const silf_start, size_t lSilf, Face& face, uint32 version) -{ - const byte * p = silf_start, - * const silf_end = p + lSilf; - Error e; - - if (e.test(version >= 0x00060000, E_BADSILFVERSION)) - { - releaseBuffers(); return face.error(e); - } - if (version >= 0x00030000) - { - if (e.test(lSilf < 28, E_BADSIZE)) { releaseBuffers(); return face.error(e); } - be::skip<int32>(p); // ruleVersion - be::skip<uint16>(p,2); // passOffset & pseudosOffset - } - else if (e.test(lSilf < 20, E_BADSIZE)) { releaseBuffers(); return face.error(e); } - const uint16 maxGlyph = be::read<uint16>(p); - m_silfinfo.extra_ascent = be::read<uint16>(p); - m_silfinfo.extra_descent = be::read<uint16>(p); - m_numPasses = be::read<uint8>(p); - m_sPass = be::read<uint8>(p); - m_pPass = be::read<uint8>(p); - m_jPass = be::read<uint8>(p); - m_bPass = be::read<uint8>(p); - m_flags = be::read<uint8>(p); - be::skip<uint8>(p,2); // max{Pre,Post}Context. - m_aPseudo = be::read<uint8>(p); - m_aBreak = be::read<uint8>(p); - m_aBidi = be::read<uint8>(p); - m_aMirror = be::read<uint8>(p); - m_aPassBits = be::read<uint8>(p); - - // Read Justification levels. - m_numJusts = be::read<uint8>(p); - if (e.test(maxGlyph >= face.glyphs().numGlyphs(), E_BADMAXGLYPH) - || e.test(p + m_numJusts * 8 >= silf_end, E_BADNUMJUSTS)) - { - releaseBuffers(); return face.error(e); - } - - if (m_numJusts) - { - m_justs = gralloc<Justinfo>(m_numJusts); - if (e.test(!m_justs, E_OUTOFMEM)) return face.error(e); - - for (uint8 i = 0; i < m_numJusts; i++) - { - ::new(m_justs + i) Justinfo(p[0], p[1], p[2], p[3]); - be::skip<byte>(p,8); - } - } - - if (e.test(p + sizeof(uint16) + sizeof(uint8)*8 >= silf_end, E_BADENDJUSTS)) { releaseBuffers(); return face.error(e); } - m_aLig = be::read<uint16>(p); - m_aUser = be::read<uint8>(p); - m_iMaxComp = be::read<uint8>(p); - m_dir = be::read<uint8>(p) - 1; - m_aCollision = be::read<uint8>(p); - be::skip<byte>(p,3); - be::skip<uint16>(p, be::read<uint8>(p)); // don't need critical features yet - be::skip<byte>(p); // reserved - if (e.test(p >= silf_end, E_BADCRITFEATURES)) { releaseBuffers(); return face.error(e); } - be::skip<uint32>(p, be::read<uint8>(p)); // don't use scriptTag array. - if (e.test(p + sizeof(uint16) + sizeof(uint32) >= silf_end, E_BADSCRIPTTAGS)) { releaseBuffers(); return face.error(e); } - m_gEndLine = be::read<uint16>(p); // lbGID - const byte * o_passes = p; - uint32 passes_start = be::read<uint32>(p); - - const size_t num_attrs = face.glyphs().numAttrs(); - if (e.test(m_aPseudo >= num_attrs, E_BADAPSEUDO) - || e.test(m_aBreak >= num_attrs, E_BADABREAK) - || e.test(m_aBidi >= num_attrs, E_BADABIDI) - || e.test(m_aMirror>= num_attrs, E_BADAMIRROR) - || e.test(m_aCollision && m_aCollision >= num_attrs - 5, E_BADACOLLISION) - || e.test(m_numPasses > 128, E_BADNUMPASSES) || e.test(passes_start >= lSilf, E_BADPASSESSTART) - || e.test(m_pPass < m_sPass, E_BADPASSBOUND) || e.test(m_pPass > m_numPasses, E_BADPPASS) || e.test(m_sPass > m_numPasses, E_BADSPASS) - || e.test(m_jPass < m_pPass, E_BADJPASSBOUND) || e.test(m_jPass > m_numPasses, E_BADJPASS) - || e.test((m_bPass != 0xFF && (m_bPass < m_jPass || m_bPass > m_numPasses)), E_BADBPASS) - || e.test(m_aLig > 127, E_BADALIG)) - { - releaseBuffers(); - return face.error(e); - } - be::skip<uint32>(p, m_numPasses); - if (e.test(unsigned(p - silf_start) + sizeof(uint16) >= passes_start, E_BADPASSESSTART)) { releaseBuffers(); return face.error(e); } - m_numPseudo = be::read<uint16>(p); - be::skip<uint16>(p, 3); // searchPseudo, pseudoSelector, pseudoShift - m_pseudos = new Pseudo[m_numPseudo]; - if (e.test(unsigned(p - silf_start) + m_numPseudo*(sizeof(uint32) + sizeof(uint16)) >= passes_start, E_BADNUMPSEUDO) - || e.test(!m_pseudos, E_OUTOFMEM)) - { - releaseBuffers(); return face.error(e); - } - for (int i = 0; i < m_numPseudo; i++) - { - m_pseudos[i].uid = be::read<uint32>(p); - m_pseudos[i].gid = be::read<uint16>(p); - } - - const size_t clen = readClassMap(p, passes_start + silf_start - p, version, e); - m_passes = new Pass[m_numPasses]; - if (e || e.test(clen > unsigned(passes_start + silf_start - p), E_BADPASSESSTART) - || e.test(!m_passes, E_OUTOFMEM)) - { releaseBuffers(); return face.error(e); } - - for (size_t i = 0; i < m_numPasses; ++i) - { - uint32 pass_start = be::read<uint32>(o_passes); - uint32 pass_end = be::peek<uint32>(o_passes); - face.error_context((face.error_context() & 0xFF00) + EC_ASILF + unsigned(i << 16)); - if (e.test(pass_start > pass_end, E_BADPASSSTART) - || e.test(pass_start < passes_start, E_BADPASSSTART) - || e.test(pass_end > lSilf, E_BADPASSEND)) { - releaseBuffers(); return face.error(e); - } - - enum passtype pt = PASS_TYPE_UNKNOWN; - if (i >= m_jPass) pt = PASS_TYPE_JUSTIFICATION; - else if (i >= m_pPass) pt = PASS_TYPE_POSITIONING; - else if (i >= m_sPass) pt = PASS_TYPE_SUBSTITUTE; - else pt = PASS_TYPE_LINEBREAK; - - m_passes[i].init(this); - if (!m_passes[i].readPass(silf_start + pass_start, pass_end - pass_start, pass_start, face, pt, - version, e)) - { - releaseBuffers(); - return false; - } - } - - // fill in gr_faceinfo - m_silfinfo.upem = face.glyphs().unitsPerEm(); - m_silfinfo.has_bidi_pass = (m_bPass != 0xFF); - m_silfinfo.justifies = (m_numJusts != 0) || (m_jPass < m_pPass); - m_silfinfo.line_ends = (m_flags & 1); - m_silfinfo.space_contextuals = gr_faceinfo::gr_space_contextuals((m_flags >> 2) & 0x7); - return true; -} - -template<typename T> inline uint32 Silf::readClassOffsets(const byte *&p, size_t data_len, Error &e) -{ - const T cls_off = 2*sizeof(uint16) + sizeof(T)*(m_nClass+1); - const uint32 max_off = (be::peek<T>(p + sizeof(T)*m_nClass) - cls_off)/sizeof(uint16); - // Check that the last+1 offset is less than or equal to the class map length. - if (e.test(be::peek<T>(p) != cls_off, E_MISALIGNEDCLASSES) - || e.test(max_off > (data_len - cls_off)/sizeof(uint16), E_HIGHCLASSOFFSET)) - return ERROROFFSET; - - // Read in all the offsets. - m_classOffsets = gralloc<uint32>(m_nClass+1); - if (e.test(!m_classOffsets, E_OUTOFMEM)) return ERROROFFSET; - for (uint32 * o = m_classOffsets, * const o_end = o + m_nClass + 1; o != o_end; ++o) - { - *o = (be::read<T>(p) - cls_off)/sizeof(uint16); - if (e.test(*o > max_off, E_HIGHCLASSOFFSET)) - return ERROROFFSET; - } - return max_off; -} - -size_t Silf::readClassMap(const byte *p, size_t data_len, uint32 version, Error &e) -{ - if (e.test(data_len < sizeof(uint16)*2, E_BADCLASSSIZE)) return ERROROFFSET; - - m_nClass = be::read<uint16>(p); - m_nLinear = be::read<uint16>(p); - - // Check that numLinear < numClass, - // that there is at least enough data for numClasses offsets. - if (e.test(m_nLinear > m_nClass, E_TOOMANYLINEAR) - || e.test((m_nClass + 1) * (version >= 0x00040000 ? sizeof(uint32) : sizeof(uint16)) > (data_len - 4), E_CLASSESTOOBIG)) - return ERROROFFSET; - - uint32 max_off; - if (version >= 0x00040000) - max_off = readClassOffsets<uint32>(p, data_len, e); - else - max_off = readClassOffsets<uint16>(p, data_len, e); - - if (max_off == ERROROFFSET) return ERROROFFSET; - - if (e.test((int)max_off < m_nLinear + (m_nClass - m_nLinear) * 6, E_CLASSESTOOBIG)) - return ERROROFFSET; - - // Check the linear offsets are sane, these must be monotonically increasing. - assert(m_nClass >= m_nLinear); - for (const uint32 *o = m_classOffsets, * const o_end = o + m_nLinear; o != o_end; ++o) - if (e.test(o[0] > o[1], E_BADCLASSOFFSET)) - return ERROROFFSET; - - // Fortunately the class data is all uint16s so we can decode these now - m_classData = gralloc<uint16>(max_off); - if (e.test(!m_classData, E_OUTOFMEM)) return ERROROFFSET; - for (uint16 *d = m_classData, * const d_end = d + max_off; d != d_end; ++d) - *d = be::read<uint16>(p); - - // Check the lookup class invariants for each non-linear class - for (const uint32 *o = m_classOffsets + m_nLinear, * const o_end = m_classOffsets + m_nClass; o != o_end; ++o) - { - const uint16 * lookup = m_classData + *o; - if (e.test(*o + 4 > max_off, E_HIGHCLASSOFFSET) // LookupClass doesn't stretch over max_off - || e.test(lookup[0] == 0 // A LookupClass with no looks is a suspicious thing ... - || lookup[0] * 2 + *o + 4 > max_off // numIDs lookup pairs fits within (start of LookupClass' lookups array, max_off] - || lookup[3] + lookup[1] != lookup[0], E_BADCLASSLOOKUPINFO) // rangeShift: numIDs - searchRange - || e.test(((o[1] - *o) & 1) != 0, ERROROFFSET)) // glyphs are in pairs so difference must be even. - return ERROROFFSET; - } - - return max_off; -} - -uint16 Silf::findPseudo(uint32 uid) const -{ - for (int i = 0; i < m_numPseudo; i++) - if (m_pseudos[i].uid == uid) return m_pseudos[i].gid; - return 0; -} - -uint16 Silf::findClassIndex(uint16 cid, uint16 gid) const -{ - if (cid > m_nClass) return -1; - - const uint16 * cls = m_classData + m_classOffsets[cid]; - if (cid < m_nLinear) // output class being used for input, shouldn't happen - { - for (unsigned int i = 0, n = m_classOffsets[cid + 1] - m_classOffsets[cid]; i < n; ++i, ++cls) - if (*cls == gid) return i; - return -1; - } - else - { - const uint16 * min = cls + 4, // lookups array - * max = min + cls[0]*2; // lookups aray is numIDs (cls[0]) uint16 pairs long - do - { - const uint16 * p = min + (-2 & ((max-min)/2)); - if (p[0] > gid) max = p; - else min = p; - } - while (max - min > 2); - return min[0] == gid ? min[1] : -1; - } -} - -uint16 Silf::getClassGlyph(uint16 cid, unsigned int index) const -{ - if (cid > m_nClass) return 0; - - uint32 loc = m_classOffsets[cid]; - if (cid < m_nLinear) - { - if (index < m_classOffsets[cid + 1] - loc) - return m_classData[index + loc]; - } - else // input class being used for output. Shouldn't happen - { - for (unsigned int i = loc + 4; i < m_classOffsets[cid + 1]; i += 2) - if (m_classData[i + 1] == index) return m_classData[i]; - } - return 0; -} - - -bool Silf::runGraphite(Segment *seg, uint8 firstPass, uint8 lastPass, int dobidi) const -{ - assert(seg != 0); - size_t maxSize = seg->slotCount() * MAX_SEG_GROWTH_FACTOR; - SlotMap map(*seg, m_dir, maxSize); - FiniteStateMachine fsm(map, seg->getFace()->logger()); - vm::Machine m(map); - uint8 lbidi = m_bPass; -#if !defined GRAPHITE2_NTRACING - json * const dbgout = seg->getFace()->logger(); -#endif - - if (lastPass == 0) - { - if (firstPass == lastPass && lbidi == 0xFF) - return true; - lastPass = m_numPasses; - } - if ((firstPass < lbidi || (dobidi && firstPass == lbidi)) && (lastPass >= lbidi || (dobidi && lastPass + 1 == lbidi))) - lastPass++; - else - lbidi = 0xFF; - - for (size_t i = firstPass; i < lastPass; ++i) - { - // bidi and mirroring - if (i == lbidi) - { -#if !defined GRAPHITE2_NTRACING - if (dbgout) - { - *dbgout << json::item << json::object -// << "pindex" << i // for debugging - << "id" << -1 - << "slotsdir" << (seg->currdir() ? "rtl" : "ltr") - << "passdir" << (m_dir & 1 ? "rtl" : "ltr") - << "slots" << json::array; - seg->positionSlots(0, 0, 0, seg->currdir()); - for(Slot * s = seg->first(); s; s = s->next()) - *dbgout << dslot(seg, s); - *dbgout << json::close - << "rules" << json::array << json::close - << json::close; - } -#endif - if (seg->currdir() != (m_dir & 1)) - seg->reverseSlots(); - if (m_aMirror && (seg->dir() & 3) == 3) - seg->doMirror(m_aMirror); - --i; - lbidi = lastPass; - --lastPass; - continue; - } - -#if !defined GRAPHITE2_NTRACING - if (dbgout) - { - *dbgout << json::item << json::object -// << "pindex" << i // for debugging - << "id" << i+1 - << "slotsdir" << (seg->currdir() ? "rtl" : "ltr") - << "passdir" << ((m_dir & 1) ^ m_passes[i].reverseDir() ? "rtl" : "ltr") - << "slots" << json::array; - seg->positionSlots(0, 0, 0, seg->currdir()); - for(Slot * s = seg->first(); s; s = s->next()) - *dbgout << dslot(seg, s); - *dbgout << json::close; - } -#endif - - // test whether to reorder, prepare for positioning - bool reverse = (lbidi == 0xFF) && (seg->currdir() != ((m_dir & 1) ^ m_passes[i].reverseDir())); - if ((i >= 32 || (seg->passBits() & (1 << i)) == 0 || m_passes[i].collisionLoops()) - && !m_passes[i].runGraphite(m, fsm, reverse)) - return false; - // only subsitution passes can change segment length, cached subsegments are short for their text - if (m.status() != vm::Machine::finished - || (seg->slotCount() && seg->slotCount() > maxSize)) - return false; - } - return true; -} |