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-rw-r--r--Build/source/libs/graphite2/graphite2-src/src/Face.cpp366
1 files changed, 0 insertions, 366 deletions
diff --git a/Build/source/libs/graphite2/graphite2-src/src/Face.cpp b/Build/source/libs/graphite2/graphite2-src/src/Face.cpp
deleted file mode 100644
index 3e106050d7d..00000000000
--- a/Build/source/libs/graphite2/graphite2-src/src/Face.cpp
+++ /dev/null
@@ -1,366 +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 <cstring>
-#include "graphite2/Segment.h"
-#include "inc/CmapCache.h"
-#include "inc/debug.h"
-#include "inc/Decompressor.h"
-#include "inc/Endian.h"
-#include "inc/Face.h"
-#include "inc/FileFace.h"
-#include "inc/GlyphFace.h"
-#include "inc/json.h"
-#include "inc/Segment.h"
-#include "inc/NameTable.h"
-#include "inc/Error.h"
-
-using namespace graphite2;
-
-namespace
-{
-enum compression
-{
- NONE,
- LZ4
-};
-
-}
-
-Face::Face(const void* appFaceHandle/*non-NULL*/, const gr_face_ops & ops)
-: m_appFaceHandle(appFaceHandle),
- m_pFileFace(NULL),
- m_pGlyphFaceCache(NULL),
- m_cmap(NULL),
- m_pNames(NULL),
- m_logger(NULL),
- m_error(0), m_errcntxt(0),
- m_silfs(NULL),
- m_numSilf(0),
- m_ascent(0),
- m_descent(0)
-{
- memset(&m_ops, 0, sizeof m_ops);
- memcpy(&m_ops, &ops, min(sizeof m_ops, ops.size));
-}
-
-
-Face::~Face()
-{
- setLogger(0);
- delete m_pGlyphFaceCache;
- delete m_cmap;
- delete[] m_silfs;
-#ifndef GRAPHITE2_NFILEFACE
- delete m_pFileFace;
-#endif
- delete m_pNames;
-}
-
-float Face::default_glyph_advance(const void* font_ptr, gr_uint16 glyphid)
-{
- const Font & font = *reinterpret_cast<const Font *>(font_ptr);
-
- return font.face().glyphs().glyph(glyphid)->theAdvance().x * font.scale();
-}
-
-bool Face::readGlyphs(uint32 faceOptions)
-{
- Error e;
-#ifdef GRAPHITE2_TELEMETRY
- telemetry::category _glyph_cat(tele.glyph);
-#endif
- error_context(EC_READGLYPHS);
- m_pGlyphFaceCache = new GlyphCache(*this, faceOptions);
-
- if (e.test(!m_pGlyphFaceCache, E_OUTOFMEM)
- || e.test(m_pGlyphFaceCache->numGlyphs() == 0, E_NOGLYPHS)
- || e.test(m_pGlyphFaceCache->unitsPerEm() == 0, E_BADUPEM))
- {
- return error(e);
- }
-
- if (faceOptions & gr_face_cacheCmap)
- m_cmap = new CachedCmap(*this);
- else
- m_cmap = new DirectCmap(*this);
- if (e.test(!m_cmap, E_OUTOFMEM) || e.test(!*m_cmap, E_BADCMAP))
- return error(e);
-
- if (faceOptions & gr_face_preloadGlyphs)
- nameTable(); // preload the name table along with the glyphs.
-
- return true;
-}
-
-bool Face::readGraphite(const Table & silf)
-{
-#ifdef GRAPHITE2_TELEMETRY
- telemetry::category _silf_cat(tele.silf);
-#endif
- Error e;
- error_context(EC_READSILF);
- const byte * p = silf;
- if (e.test(!p, E_NOSILF) || e.test(silf.size() < 20, E_BADSIZE)) return error(e);
-
- const uint32 version = be::read<uint32>(p);
- if (e.test(version < 0x00020000, E_TOOOLD)) return error(e);
- if (version >= 0x00030000)
- be::skip<uint32>(p); // compilerVersion
- m_numSilf = be::read<uint16>(p);
-
- be::skip<uint16>(p); // reserved
-
- bool havePasses = false;
- m_silfs = new Silf[m_numSilf];
- if (e.test(!m_silfs, E_OUTOFMEM)) return error(e);
- for (int i = 0; i < m_numSilf; i++)
- {
- error_context(EC_ASILF + (i << 8));
- const uint32 offset = be::read<uint32>(p),
- next = i == m_numSilf - 1 ? uint32(silf.size()) : be::peek<uint32>(p);
- if (e.test(next > silf.size() || offset >= next, E_BADSIZE))
- return error(e);
-
- if (!m_silfs[i].readGraphite(silf + offset, next - offset, *this, version))
- return false;
-
- if (m_silfs[i].numPasses())
- havePasses = true;
- }
-
- return havePasses;
-}
-
-bool Face::readFeatures()
-{
- return m_Sill.readFace(*this);
-}
-
-bool Face::runGraphite(Segment *seg, const Silf *aSilf) const
-{
-#if !defined GRAPHITE2_NTRACING
- json * dbgout = logger();
- if (dbgout)
- {
- *dbgout << json::object
- << "id" << objectid(seg)
- << "passes" << json::array;
- }
-#endif
-
-// if ((seg->dir() & 1) != aSilf->dir())
-// seg->reverseSlots();
- if ((seg->dir() & 3) == 3 && aSilf->bidiPass() == 0xFF)
- seg->doMirror(aSilf->aMirror());
- bool res = aSilf->runGraphite(seg, 0, aSilf->positionPass(), true);
- if (res)
- {
- seg->associateChars(0, seg->charInfoCount());
- if (aSilf->flags() & 0x20)
- res &= seg->initCollisions();
- if (res)
- res &= aSilf->runGraphite(seg, aSilf->positionPass(), aSilf->numPasses(), false);
- }
-
-#if !defined GRAPHITE2_NTRACING
- if (dbgout)
-{
- seg->positionSlots(0, 0, 0, seg->currdir());
- *dbgout << json::item
- << json::close // Close up the passes array
- << "outputdir" << (seg->currdir() ? "rtl" : "ltr")
- << "output" << json::array;
- for(Slot * s = seg->first(); s; s = s->next())
- *dbgout << dslot(seg, s);
- *dbgout << json::close
- << "advance" << seg->advance()
- << "chars" << json::array;
- for(size_t i = 0, n = seg->charInfoCount(); i != n; ++i)
- *dbgout << json::flat << *seg->charinfo(int(i));
- *dbgout << json::close // Close up the chars array
- << json::close; // Close up the segment object
- }
-#endif
-
- return res;
-}
-
-void Face::setLogger(FILE * log_file GR_MAYBE_UNUSED)
-{
-#if !defined GRAPHITE2_NTRACING
- delete m_logger;
- m_logger = log_file ? new json(log_file) : 0;
-#endif
-}
-
-const Silf *Face::chooseSilf(uint32 script) const
-{
- if (m_numSilf == 0)
- return NULL;
- else if (m_numSilf == 1 || script == 0)
- return m_silfs;
- else // do more work here
- return m_silfs;
-}
-
-uint16 Face::findPseudo(uint32 uid) const
-{
- return (m_numSilf) ? m_silfs[0].findPseudo(uid) : 0;
-}
-
-int32 Face::getGlyphMetric(uint16 gid, uint8 metric) const
-{
- switch (metrics(metric))
- {
- case kgmetAscent : return m_ascent;
- case kgmetDescent : return m_descent;
- default:
- if (gid >= glyphs().numGlyphs()) return 0;
- return glyphs().glyph(gid)->getMetric(metric);
- }
-}
-
-void Face::takeFileFace(FileFace* pFileFace GR_MAYBE_UNUSED/*takes ownership*/)
-{
-#ifndef GRAPHITE2_NFILEFACE
- if (m_pFileFace==pFileFace)
- return;
-
- delete m_pFileFace;
- m_pFileFace = pFileFace;
-#endif
-}
-
-NameTable * Face::nameTable() const
-{
- if (m_pNames) return m_pNames;
- const Table name(*this, Tag::name);
- if (name)
- m_pNames = new NameTable(name, name.size());
- return m_pNames;
-}
-
-uint16 Face::languageForLocale(const char * locale) const
-{
- nameTable();
- if (m_pNames)
- return m_pNames->getLanguageId(locale);
- return 0;
-}
-
-
-
-Face::Table::Table(const Face & face, const Tag n, uint32 version) throw()
-: _f(&face), _sz(0), _compressed(false)
-{
- _p = static_cast<const byte *>((*_f->m_ops.get_table)(_f->m_appFaceHandle, n, &_sz));
-
- if (!TtfUtil::CheckTable(n, _p, _sz))
- {
- release(); // Make sure we release the table buffer even if the table failed its checks
- return;
- }
-
- if (be::peek<uint32>(_p) >= version)
- decompress();
-}
-
-void Face::Table::release()
-{
- if (_compressed)
- free(const_cast<byte *>(_p));
- else if (_p && _f->m_ops.release_table)
- (*_f->m_ops.release_table)(_f->m_appFaceHandle, _p);
- _p = 0; _sz = 0;
-}
-
-Face::Table & Face::Table::operator = (const Table && rhs) throw()
-{
- if (this == &rhs) return *this;
- release();
- new (this) Table(std::move(rhs));
- return *this;
-}
-
-Error Face::Table::decompress()
-{
- Error e;
- if (e.test(_sz < 5 * sizeof(uint32), E_BADSIZE))
- return e;
- byte * uncompressed_table = 0;
- size_t uncompressed_size = 0;
-
- const byte * p = _p;
- const uint32 version = be::read<uint32>(p); // Table version number.
-
- // The scheme is in the top 5 bits of the 1st uint32.
- const uint32 hdr = be::read<uint32>(p);
- switch(compression(hdr >> 27))
- {
- case NONE: return e;
-
- case LZ4:
- {
- uncompressed_size = hdr & 0x07ffffff;
- uncompressed_table = gralloc<byte>(uncompressed_size);
- if (!e.test(!uncompressed_table || uncompressed_size < 4, E_OUTOFMEM))
- {
- memset(uncompressed_table, 0, 4); // make sure version number is initialised
- // coverity[forward_null : FALSE] - uncompressed_table has been checked so can't be null
- // coverity[checked_return : FALSE] - we test e later
- e.test(lz4::decompress(p, _sz - 2*sizeof(uint32), uncompressed_table, uncompressed_size) != signed(uncompressed_size), E_SHRINKERFAILED);
- }
- break;
- }
-
- default:
- e.error(E_BADSCHEME);
- };
-
- // Check the uncompressed version number against the original.
- if (!e)
- // coverity[forward_null : FALSE] - uncompressed_table has already been tested so can't be null
- // coverity[checked_return : FALSE] - we test e later
- e.test(be::peek<uint32>(uncompressed_table) != version, E_SHRINKERFAILED);
-
- // Tell the provider to release the compressed form since were replacing
- // it anyway.
- release();
-
- if (e)
- {
- free(uncompressed_table);
- uncompressed_table = 0;
- uncompressed_size = 0;
- }
-
- _p = uncompressed_table;
- _sz = uncompressed_size;
- _compressed = true;
-
- return e;
-}