diff options
author | Peter Breitenlohner <peb@mppmu.mpg.de> | 2013-05-21 13:53:17 +0000 |
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committer | Peter Breitenlohner <peb@mppmu.mpg.de> | 2013-05-21 13:53:17 +0000 |
commit | d3043b6e77a218362554cff9b065c8c05abef5d9 (patch) | |
tree | 75c748f0bbbf7eb9bfa833bba897ae3476a14a5c /Build/source/texk/dvisvgm/dvisvgm-1.2.2/src/StreamWriter.cpp | |
parent | 4d30fc89a17b30f1afd7472aa5219fe6d60afb52 (diff) |
dvisvgm 1.2.2
git-svn-id: svn://tug.org/texlive/trunk@30608 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/texk/dvisvgm/dvisvgm-1.2.2/src/StreamWriter.cpp')
-rw-r--r-- | Build/source/texk/dvisvgm/dvisvgm-1.2.2/src/StreamWriter.cpp | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/Build/source/texk/dvisvgm/dvisvgm-1.2.2/src/StreamWriter.cpp b/Build/source/texk/dvisvgm/dvisvgm-1.2.2/src/StreamWriter.cpp new file mode 100644 index 00000000000..bdd378f9993 --- /dev/null +++ b/Build/source/texk/dvisvgm/dvisvgm-1.2.2/src/StreamWriter.cpp @@ -0,0 +1,81 @@ +/************************************************************************* +** StreamWriter.cpp ** +** ** +** This file is part of dvisvgm -- the DVI to SVG converter ** +** Copyright (C) 2005-2013 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 "CRC32.h" +#include "StreamWriter.h" + +using namespace std; + + +/** Writes an unsigned integer to the output stream. + * @param[in] val the value to write + * @param[in] n number of bytes to be considered */ +void StreamWriter::writeUnsigned (UInt32 val, int n) { + for (n--; n >= 0; n--) + _os.put((val >> (8*n)) & 0xff); +} + + +/** Writes a signed integer to the output stream. + * @param[in] val the value to write + * @param[in] n number of bytes to be considered */ +void StreamWriter::writeSigned (Int32 val, int n) { + writeUnsigned((UInt32)val, n); +} + + +/** Writes a signed integer to the output stream. + * @param[in] val the value to write + * @param[in] finalZero if true, a final 0-byte is appended */ +void StreamWriter::writeString (const string &str, bool finalZero) { + for (size_t i=0; i < str.length(); i++) + _os.put(str[i]); + if (finalZero) + _os.put(0); +} + + +/** Writes an unsigned integer to the output stream. + * @param[in] val the value to write + * @param[in] n number of bytes to be considered + * @param[in,out] crc32 checksum to be updated */ +void StreamWriter::writeUnsigned (UInt32 val, int n, CRC32 &crc32) { + writeUnsigned(val, n); + crc32.update(val, n); +} + + +/** Writes a signed integer to the output stream and updates the CRC32 checksum. + * @param[in] val the value to write + * @param[in] n number of bytes to be considered + * @param[in,out] crc32 checksum to be updated */ +void StreamWriter::writeSigned (Int32 val, int n, CRC32 &crc32) { + writeUnsigned((UInt32)val, n, crc32); +} + + +/** Writes a string to the output stream and updates the CRC32 checksum. + * @param[in] str the string to write + * @param[in,out] crc32 checksum to be updated + * @param[in] finalZero if true, a final 0-byte is appended */ +void StreamWriter::writeString (const std::string &str, CRC32 &crc32, bool finalZero) { + writeString(str, finalZero); + crc32.update((const UInt8*)str.c_str(), str.length() + (finalZero ? 1 : 0)); +} |