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Diffstat (limited to 'Build/source/texk/dvisvgm/dvisvgm-src/src/JFM.cpp')
-rw-r--r-- | Build/source/texk/dvisvgm/dvisvgm-src/src/JFM.cpp | 101 |
1 files changed, 0 insertions, 101 deletions
diff --git a/Build/source/texk/dvisvgm/dvisvgm-src/src/JFM.cpp b/Build/source/texk/dvisvgm/dvisvgm-src/src/JFM.cpp deleted file mode 100644 index d0dd13c9b96..00000000000 --- a/Build/source/texk/dvisvgm/dvisvgm-src/src/JFM.cpp +++ /dev/null @@ -1,101 +0,0 @@ -/************************************************************************* -** JFM.cpp ** -** ** -** This file is part of dvisvgm -- a fast DVI to SVG converter ** -** Copyright (C) 2005-2021 Martin Gieseking <martin.gieseking@uos.de> ** -** ** -** This program is free software; you can redistribute it and/or ** -** modify it under the terms of the GNU General Public License as ** -** published by the Free Software Foundation; either version 3 of ** -** the 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 General Public License for more details. ** -** ** -** You should have received a copy of the GNU General Public License ** -** along with this program; if not, see <http://www.gnu.org/licenses/>. ** -*************************************************************************/ - -#include <algorithm> -#include <cstring> -#include <fstream> -#include <sstream> -#include "JFM.hpp" -#include "StreamReader.hpp" - -using namespace std; - - -JFM::JFM (istream &is) { - is.seekg(0); - StreamReader reader(is); - uint16_t id = uint16_t(reader.readUnsigned(2)); // JFM ID (9 or 11) - if (id != 9 && id != 11) - throw FontMetricException("invalid JFM identifier " + std::to_string(id) + " (9 or 11 expected)"); - - _vertical = (id == 9); - uint16_t nt = uint16_t(reader.readUnsigned(2)); // length of character type table - uint16_t lf = uint16_t(reader.readUnsigned(2)); // length of entire file in 4 byte words - uint16_t lh = uint16_t(reader.readUnsigned(2)); // length of header in 4 byte words - uint16_t bc = uint16_t(reader.readUnsigned(2)); // smallest character code in font - uint16_t ec = uint16_t(reader.readUnsigned(2)); // largest character code in font - uint16_t nw = uint16_t(reader.readUnsigned(2)); // number of words in width table - uint16_t nh = uint16_t(reader.readUnsigned(2)); // number of words in height table - uint16_t nd = uint16_t(reader.readUnsigned(2)); // number of words in depth table - uint16_t ni = uint16_t(reader.readUnsigned(2)); // number of words in italic corr. table - uint16_t nl = uint16_t(reader.readUnsigned(2)); // number of words in glue/kern table - uint16_t nk = uint16_t(reader.readUnsigned(2)); // number of words in kern table - uint16_t ng = uint16_t(reader.readUnsigned(2)); // number of words in glue table - uint16_t np = uint16_t(reader.readUnsigned(2)); // number of font parameter words - - if (7+nt+lh+(ec-bc+1)+nw+nh+nd+ni+nl+nk+ng+np != lf) - throw FontMetricException("inconsistent length values"); - - setCharRange(bc, ec); - readHeader(reader); - is.seekg(28+lh*4); - readTables(reader, nt, nw, nh, nd, ni); - is.seekg(4*(lf-np), ios::beg); - readParameters(reader, np); // JFM files provide 9 parameters but we don't need all of them -} - - -void JFM::readTables (StreamReader &reader, int nt, int nw, int nh, int nd, int ni) { - // determine smallest charcode with chartype > 0 - uint32_t minchar=0xFFFFFFFF, maxchar=0; - for (int i=0; i < nt; i++) { - // support new JFM spec by texjporg - uint32_t c = reader.readUnsigned(2); - c += 0x10000 * reader.readUnsigned(1); - uint8_t t = uint8_t(reader.readUnsigned(1)); - if (t > 0) { - minchar = min(minchar, c); - maxchar = max(maxchar, c); - } - } - // build charcode to chartype map - if (minchar <= maxchar) { - _minchar = minchar; - _charTypeTable.resize(maxchar-minchar+1, 0); - reader.seek(-nt*4, ios::cur); - for (int i=0; i < nt; i++) { - // support new JFM spec by texjporg - uint32_t c = reader.readUnsigned(2); - c += 0x10000 * reader.readUnsigned(1); - uint8_t t = uint8_t(reader.readUnsigned(1)); - if (c >= minchar) - _charTypeTable[c-minchar] = t; - } - } - TFM::readTables(reader, nw, nh, nd, ni); -} - - -int JFM::charIndex (int c) const { - uint8_t chartype = 0; - if (!_charTypeTable.empty() && uint32_t(c) >= _minchar && uint32_t(c) < _minchar+_charTypeTable.size()) - chartype = _charTypeTable[c-_minchar]; - return TFM::charIndex(chartype); -} |