1 files changed, 355 insertions, 0 deletions
diff --git a/hwpfilter/source/hiodev.cxx b/hwpfilter/source/hiodev.cxx
new file mode 100644
index 000000000..643700414
--- /dev/null
+++ b/hwpfilter/source/hiodev.cxx
@@ -0,0 +1,355 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <stdio.h>
+#include <errno.h>
+
+#ifdef _WIN32
+# include <io.h>
+#else
+# include <unistd.h>
+#endif
+
+
+#include "hwplib.h"
+#include "hgzip.h"
+#include "hiodev.h"
+#include "hwpfile.h"
+#include "hstream.hxx"
+
+const size_t BUFSIZE = 1024;
+static uchar rBuf[BUFSIZE];
+
+// HIODev abstract class
+HIODev::HIODev()
+{
+    init();
+}
+
+
+HIODev::~HIODev()
+{
+}
+
+
+void HIODev::init()
+{
+    compressed = false;
+}
+
+size_t HIODev::read2b(void *ptr, size_t nmemb)
+{
+    ushort *p = static_cast<ushort *>(ptr);
+
+    if (state())
+        return 0;
+    size_t ii;
+    for (ii = 0; ii < nmemb; ++ii)
+    {
+        if (!read2b(p[ii]))
+            break;
+        if (state())
+            break;
+    }
+    return ii;
+}
+
+size_t HIODev::read4b(void *ptr, size_t nmemb)
+{
+    uint *p = static_cast<uint *>(ptr);
+
+    if (state())
+        return 0;
+    size_t ii;
+    for (ii = 0; ii < nmemb; ++ii)
+    {
+        if (!read4b(p[ii]))
+            break;
+        if (state())
+            break;
+    }
+    return ii;
+}
+
+
+// hfileiodev class
+HStreamIODev::HStreamIODev(std::unique_ptr<HStream> stream):_stream(std::move(stream))
+{
+    init();
+}
+
+
+HStreamIODev::~HStreamIODev()
+{
+/* 플러시한 후 닫는다. */
+    flush();
+    if (_gzfp)
+        gz_close(_gzfp);
+    _gzfp = nullptr;
+}
+
+
+void HStreamIODev::init()
+{
+    _gzfp = nullptr;
+    compressed = false;
+}
+
+
+bool HStreamIODev::open()
+{
+    return _stream->available() != 0;
+}
+
+
+void HStreamIODev::flush()
+{
+    if (_gzfp)
+        gz_flush(_gzfp, Z_FINISH);
+}
+
+bool HStreamIODev::state() const
+{
+    return false;
+}
+
+/* zlib 관련 부분 */
+bool HStreamIODev::setCompressed(bool flag)
+{
+    compressed = flag;
+    if (flag)
+    {
+        _gzfp = gz_open(*_stream);
+        return nullptr != _gzfp;
+    }
+    else if (_gzfp)
+    {
+        gz_flush(_gzfp, Z_FINISH);
+        gz_close(_gzfp);
+        _gzfp = nullptr;
+    }
+    return true;
+}
+
+
+// IO routines
+
+#define GZREAD(ptr,len) (_gzfp?gz_read(_gzfp,ptr,len):0)
+
+bool HStreamIODev::read1b(unsigned char &out)
+{
+    size_t res = compressed ? GZREAD(rBuf, 1) : _stream->readBytes(rBuf, 1);
+
+    if (res < 1)
+        return false;
+
+    out = static_cast<unsigned char>(rBuf[0]);
+    return true;
+}
+
+bool HStreamIODev::read1b(char &out)
+{
+    unsigned char tmp8;
+    if (!read1b(tmp8))
+        return false;
+    out = tmp8;
+    return true;
+}
+
+bool HStreamIODev::read2b(unsigned short &out)
+{
+    size_t res = compressed ? GZREAD(rBuf, 2) : _stream->readBytes(rBuf, 2);
+
+    if (res < 2)
+        return false;
+
+    out = (static_cast<unsigned char>(rBuf[1]) << 8 | static_cast<unsigned char>(rBuf[0]));
+    return true;
+}
+
+bool HStreamIODev::read4b(unsigned int &out)
+{
+    size_t res = compressed ? GZREAD(rBuf, 4) : _stream->readBytes(rBuf, 4);
+
+    if (res < 4)
+        return false;
+
+    out = (static_cast<unsigned char>(rBuf[3]) << 24 | static_cast<unsigned char>(rBuf[2]) << 16 |
+        static_cast<unsigned char>(rBuf[1]) << 8 | static_cast<unsigned char>(rBuf[0]));
+    return true;
+}
+
+bool HStreamIODev::read4b(int &out)
+{
+    unsigned int tmp32;
+    if (!read4b(tmp32))
+        return false;
+    out = tmp32;
+    return true;
+}
+
+size_t HStreamIODev::readBlock(void *ptr, size_t size)
+{
+    size_t count =
+        compressed
+        ? GZREAD(ptr, size)
+        : _stream->readBytes(static_cast<byte *>(ptr), size);
+
+    return count;
+}
+
+size_t HStreamIODev::skipBlock(size_t size)
+{
+    if (compressed){
+          if( size <= BUFSIZE )
+                return GZREAD(rBuf, size);
+          else{
+                size_t remain = size;
+                while(remain){
+                     if( remain > BUFSIZE ) {
+                          size_t read = GZREAD(rBuf, BUFSIZE);
+                          remain -= read;
+                          if (read != BUFSIZE)
+                              break;
+                     }
+                     else{
+                          remain -= GZREAD(rBuf, remain);
+                          break;
+                     }
+                }
+                return size - remain;
+          }
+    }
+    return _stream->skipBytes(size);
+}
+
+
+HMemIODev::HMemIODev(char *s, size_t len)
+{
+    init();
+    ptr = reinterpret_cast<uchar *>(s);
+    length = len;
+}
+
+
+HMemIODev::~HMemIODev()
+{
+}
+
+
+void HMemIODev::init()
+{
+    ptr = nullptr;
+    length = 0;
+    pos = 0;
+}
+
+
+bool HMemIODev::open()
+{
+    return true;
+}
+
+
+void HMemIODev::flush()
+{
+}
+
+bool HMemIODev::state() const
+{
+    return pos > length;
+}
+
+bool HMemIODev::setCompressed(bool )
+{
+    return false;
+}
+
+bool HMemIODev::read1b(unsigned char &out)
+{
+    ++pos;
+    if (!state())
+    {
+        out = ptr[pos - 1];
+        return true;
+    }
+    return false;
+}
+
+bool HMemIODev::read1b(char &out)
+{
+    unsigned char tmp8;
+    if (!read1b(tmp8))
+        return false;
+    out = tmp8;
+    return true;
+}
+
+bool HMemIODev::read2b(unsigned short &out)
+{
+    pos += 2;
+    if (!state())
+    {
+         out = ptr[pos - 1] << 8 | ptr[pos - 2];
+         return true;
+    }
+    return false;
+}
+
+bool HMemIODev::read4b(unsigned int &out)
+{
+    pos += 4;
+    if (!state())
+    {
+        out = static_cast<unsigned int>(ptr[pos - 1] << 24 | ptr[pos - 2] << 16 |
+                    ptr[pos - 3] << 8 | ptr[pos - 4]);
+        return true;
+    }
+    return false;
+}
+
+bool HMemIODev::read4b(int &out)
+{
+    unsigned int tmp32;
+    if (!read4b(tmp32))
+        return false;
+    out = tmp32;
+    return true;
+}
+
+size_t HMemIODev::readBlock(void *p, size_t size)
+{
+    if (state())
+        return 0;
+    if (size > length - pos)
+        size = length - pos;
+    memcpy(p, ptr + pos, size);
+    pos += size;
+    return size;
+}
+
+size_t HMemIODev::skipBlock(size_t size)
+{
+    if (state() || size > length - pos)
+        return 0;
+    pos += size;
+    return size;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */