--- /dev/null
+/*
+Copyright (C) 2001-2006, William Joseph.
+All Rights Reserved.
+
+This file is part of GtkRadiant.
+
+GtkRadiant 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 2 of the License, or
+(at your option) any later version.
+
+GtkRadiant 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 GtkRadiant; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+*/
+
+#if !defined (INCLUDED_ARCHIVELIB_H)
+#define INCLUDED_ARCHIVELIB_H
+
+#include "debugging/debugging.h"
+#include "iarchive.h"
+#include "stream/filestream.h"
+#include "stream/textfilestream.h"
+#include "memory/allocator.h"
+#include "string/string.h"
+
+/// \brief A single-byte-reader wrapper around an InputStream.
+/// Optimised for reading one byte at a time.
+/// Uses a buffer to reduce the number of times the wrapped stream must be read.
+template<typename InputStreamType, int SIZE = 1024>
+class SingleByteInputStream
+{
+ typedef typename InputStreamType::byte_type byte_type;
+
+ InputStreamType& m_inputStream;
+ byte_type m_buffer[SIZE];
+ byte_type* m_cur;
+ byte_type* m_end;
+
+public:
+
+ SingleByteInputStream(InputStreamType& inputStream) : m_inputStream(inputStream), m_cur(m_buffer + SIZE), m_end(m_cur)
+ {
+ }
+ bool readByte(byte_type& b)
+ {
+ if(m_cur == m_end)
+ {
+ if(m_end != m_buffer + SIZE)
+ {
+ return false;
+ }
+
+ m_end = m_buffer + m_inputStream.read(m_buffer, SIZE);
+ m_cur = m_buffer;
+
+ if(m_end == m_buffer)
+ {
+ return false;
+ }
+ }
+
+ b = *m_cur++;
+
+ return true;
+ }
+};
+
+/// \brief A binary-to-text wrapper around an InputStream.
+/// Converts CRLF or LFCR line-endings to LF line-endings.
+template<typename BinaryInputStreamType>
+class BinaryToTextInputStream : public TextInputStream
+{
+ SingleByteInputStream<BinaryInputStreamType> m_inputStream;
+public:
+ BinaryToTextInputStream(BinaryInputStreamType& inputStream) : m_inputStream(inputStream)
+ {
+ }
+ std::size_t read(char* buffer, std::size_t length)
+ {
+ char* p = buffer;
+ for(;;)
+ {
+ if(length != 0 && m_inputStream.readByte(*reinterpret_cast<typename BinaryInputStreamType::byte_type*>(p)))
+ {
+ if(*p != '\r')
+ {
+ ++p;
+ --length;
+ }
+ }
+ else
+ {
+ return p - buffer;
+ }
+ }
+ }
+};
+
+/// \brief An ArchiveFile which is stored uncompressed as part of a larger archive file.
+class StoredArchiveFile : public ArchiveFile
+{
+ CopiedString m_name;
+ FileInputStream m_filestream;
+ SubFileInputStream m_substream;
+ FileInputStream::size_type m_size;
+public:
+ typedef FileInputStream::size_type size_type;
+ typedef FileInputStream::position_type position_type;
+
+ StoredArchiveFile(const char* name, const char* archiveName, position_type position, size_type stream_size, size_type file_size)
+ : m_name(name), m_filestream(archiveName), m_substream(m_filestream, position, stream_size), m_size(file_size)
+ {
+ }
+
+ static StoredArchiveFile* create(const char* name, const char* archiveName, position_type position, size_type stream_size, size_type file_size)
+ {
+ return New<StoredArchiveFile>().scalar(name, archiveName, position, stream_size, file_size);
+ }
+
+ void release()
+ {
+ Delete<StoredArchiveFile>().scalar(this);
+ }
+ size_type size() const
+ {
+ return m_size;
+ }
+ const char* getName() const
+ {
+ return m_name.c_str();
+ }
+ InputStream& getInputStream()
+ {
+ return m_substream;
+ }
+};
+
+/// \brief An ArchiveTextFile which is stored uncompressed as part of a larger archive file.
+class StoredArchiveTextFile : public ArchiveTextFile
+{
+ CopiedString m_name;
+ FileInputStream m_filestream;
+ SubFileInputStream m_substream;
+ BinaryToTextInputStream<SubFileInputStream> m_textStream;
+public:
+ typedef FileInputStream::size_type size_type;
+ typedef FileInputStream::position_type position_type;
+
+ StoredArchiveTextFile(const char* name, const char* archiveName, position_type position, size_type stream_size)
+ : m_name(name), m_filestream(archiveName), m_substream(m_filestream, position, stream_size), m_textStream(m_substream)
+ {
+ }
+
+ static StoredArchiveTextFile* create(const char* name, const char* archiveName, position_type position, size_type stream_size)
+ {
+ return New<StoredArchiveTextFile>().scalar(name, archiveName, position, stream_size);
+ }
+
+ void release()
+ {
+ Delete<StoredArchiveTextFile>().scalar(this);
+ }
+ const char* getName() const
+ {
+ return m_name.c_str();
+ }
+ TextInputStream& getInputStream()
+ {
+ return m_textStream;
+ }
+};
+
+/// \brief An ArchiveFile which is stored as a single file on disk.
+class DirectoryArchiveFile : public ArchiveFile
+{
+ CopiedString m_name;
+ FileInputStream m_istream;
+ FileInputStream::size_type m_size;
+public:
+ typedef FileInputStream::size_type size_type;
+
+ DirectoryArchiveFile(const char* name, const char* filename)
+ : m_name(name), m_istream(filename)
+ {
+ if(!failed())
+ {
+ m_istream.seek(0, FileInputStream::end);
+ m_size = m_istream.tell();
+ m_istream.seek(0);
+ }
+ else
+ {
+ m_size = 0;
+ }
+ }
+ bool failed() const
+ {
+ return m_istream.failed();
+ }
+
+ void release()
+ {
+ delete this;
+ }
+ size_type size() const
+ {
+ return m_size;
+ }
+ const char* getName() const
+ {
+ return m_name.c_str();
+ }
+ InputStream& getInputStream()
+ {
+ return m_istream;
+ }
+};
+
+/// \brief An ArchiveTextFile which is stored as a single file on disk.
+class DirectoryArchiveTextFile : public ArchiveTextFile
+{
+ CopiedString m_name;
+ TextFileInputStream m_inputStream;
+public:
+
+ DirectoryArchiveTextFile(const char* name, const char* filename)
+ : m_name(name), m_inputStream(filename)
+ {
+ }
+ bool failed() const
+ {
+ return m_inputStream.failed();
+ }
+
+ void release()
+ {
+ delete this;
+ }
+ const char* getName() const
+ {
+ return m_name.c_str();
+ }
+ TextInputStream& getInputStream()
+ {
+ return m_inputStream;
+ }
+};
+
+
+#endif
projects / voretournament / voretournament.git / blobdiff