summaryrefslogtreecommitdiff
path: root/Build/source/texk/dvisvgm/dvisvgm-1.2.2/src/StreamWriter.cpp
diff options
context:
space:
mode:
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.cpp81
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));
+}