plugins/archivepak/archive.cpp

   1 /*
   2    Copyright (C) 2001-2006, William Joseph.
   3    All Rights Reserved.
   4
   5    This file is part of GtkRadiant.
   6
   7    GtkRadiant is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    GtkRadiant is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with GtkRadiant; if not, write to the Free Software
  19    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  20  */
  21
  22 #include "archive.h"
  23
  24 #include "idatastream.h"
  25 #include "cmdlib.h"
  26 #include "bytestreamutils.h"
  27 #include <algorithm>
  28 #include "stream/filestream.h"
  29
  30 #include "iarchive.h"
  31
  32 #include "archivelib.h"
  33
  34
  35 #include <map>
  36 #include "string/string.h"
  37 #include "fs_filesystem.h"
  38
  39 inline void buffer_findreplace( char* buffer, char find, char replace ){
  40         while ( *buffer != '\0' )
  41         {
  42                 if ( *buffer == find ) {
  43                         *buffer = replace;
  44                 }
  45                 ++buffer;
  46         }
  47 }
  48
  49 #include "pak.h"
  50
  51 class PakArchive : public Archive
  52 {
  53 class PakRecord
  54 {
  55 public:
  56 PakRecord( unsigned int position, unsigned int stream_size )
  57         : m_position( position ), m_stream_size( stream_size ){
  58 }
  59 unsigned int m_position;
  60 unsigned int m_stream_size;
  61 };
  62 typedef GenericFileSystem<PakRecord> PakFileSystem;
  63 PakFileSystem m_filesystem;
  64 FileInputStream m_pakfile;
  65 CopiedString m_name;
  66
  67 public:
  68
  69 PakArchive( const char* name )
  70         : m_pakfile( name ), m_name( name ){
  71         if ( !m_pakfile.failed() ) {
  72                 pakheader_t header;
  73
  74                 m_pakfile.read( reinterpret_cast<FileInputStream::byte_type*>( header.magic ), 4 );
  75                 header.diroffset = istream_read_uint32_le( m_pakfile );
  76                 header.dirsize = istream_read_uint32_le( m_pakfile );
  77
  78                 if ( strncmp( header.magic, "PACK", 4 ) == 0 ) {
  79                         m_pakfile.seek( header.diroffset );
  80
  81                         for ( unsigned int i = 0; i < header.dirsize; i += sizeof( pakentry_t ) )
  82                         {
  83                                 pakentry_t entry;
  84
  85                                 m_pakfile.read( reinterpret_cast<FileInputStream::byte_type*>( entry.filename ), 0x38 );
  86                                 entry.offset = istream_read_uint32_le( m_pakfile );
  87                                 entry.size = istream_read_uint32_le( m_pakfile );
  88
  89                                 buffer_findreplace( entry.filename, '\\', '/' );
  90
  91                                 PakFileSystem::entry_type& file = m_filesystem[entry.filename];
  92                                 if ( !file.is_directory() ) {
  93                                         globalOutputStream() << "Warning: pak archive " << makeQuoted( m_name.c_str() ) << " contains duplicated file: " << makeQuoted( entry.filename ) << "\n";
  94                                 }
  95                                 else
  96                                 {
  97                                         file = new PakRecord( entry.offset, entry.size );
  98                                 }
  99                         }
 100                 }
 101         }
 102 }
 103
 104 ~PakArchive(){
 105         for ( PakFileSystem::iterator i = m_filesystem.begin(); i != m_filesystem.end(); ++i )
 106                 delete i->second.file();
 107 }
 108
 109 void release(){
 110         delete this;
 111 }
 112 ArchiveFile* openFile( const char* name ){
 113         PakFileSystem::iterator i = m_filesystem.find( name );
 114         if ( i != m_filesystem.end() && !i->second.is_directory() ) {
 115                 PakRecord* file = i->second.file();
 116                 return StoredArchiveFile::create( name, m_name.c_str(), file->m_position, file->m_stream_size, file->m_stream_size );
 117         }
 118         return 0;
 119 }
 120 virtual ArchiveTextFile* openTextFile( const char* name ){
 121         PakFileSystem::iterator i = m_filesystem.find( name );
 122         if ( i != m_filesystem.end() && !i->second.is_directory() ) {
 123                 PakRecord* file = i->second.file();
 124                 return StoredArchiveTextFile::create( name, m_name.c_str(), file->m_position, file->m_stream_size );
 125         }
 126         return 0;
 127 }
 128 bool containsFile( const char* name ){
 129         PakFileSystem::iterator i = m_filesystem.find( name );
 130         return i != m_filesystem.end() && !i->second.is_directory();
 131 }
 132 void forEachFile( VisitorFunc visitor, const char* root ){
 133         m_filesystem.traverse( visitor, root );
 134 }
 135 };
 136
 137
 138 Archive* OpenArchive( const char* name ){
 139         return new PakArchive( name );
 140 }
 141
 142 #if 0
 143
 144 class TestArchive
 145 {
 146 public:
 147 TestArchive(){
 148         Archive* archive = OpenArchive( "c:/quake3/baseq3/pak0.pak" );
 149         ArchiveFile* file = archive->openFile( "gfx/palette.lmp" );
 150         if ( file != 0 ) {
 151                 char buffer[1024];
 152                 file->getInputStream().read( (InputStream::byte_type*)buffer, 1024 );
 153                 file->release();
 154         }
 155         archive->release();
 156 }
 157 };
 158
 159 TestArchive g_test;
 160
 161 #endif
 162
 163 #if 0
 164
 165 class TestArchive
 166 {
 167 class TestVisitor : public Archive::IVisitor
 168 {
 169 public:
 170 void visit( const char* name ){
 171         int bleh = 0;
 172 }
 173 };
 174 public:
 175 TestArchive(){
 176         {
 177                 Archive* archive = OpenArchive( "" );
 178                 archive->release();
 179         }
 180         {
 181                 Archive* archive = OpenArchive( "NONEXISTANTFILE" );
 182                 archive->release();
 183         }
 184         {
 185                 Archive* archive = OpenArchive( "c:/quake/id1/pak0.pak" );
 186                 ArchiveFile* file = archive->openFile( "gfx/palette.lmp" );
 187                 if ( file != 0 ) {
 188                         char buffer[1024];
 189                         file->getInputStream().read( (InputStream::byte_type*)buffer, 1024 );
 190                         file->release();
 191                 }
 192                 TestVisitor visitor;
 193                 archive->forEachFile( Archive::VisitorFunc( &visitor, Archive::eFilesAndDirectories, 0 ), "" );
 194                 archive->forEachFile( Archive::VisitorFunc( &visitor, Archive::eFiles, 0 ), "progs/" );
 195                 archive->forEachFile( Archive::VisitorFunc( &visitor, Archive::eFiles, 0 ), "maps/" );
 196                 archive->forEachFile( Archive::VisitorFunc( &visitor, Archive::eFiles, 1 ), "sound/ambience/" );
 197                 archive->forEachFile( Archive::VisitorFunc( &visitor, Archive::eFilesAndDirectories, 1 ), "sound/" );
 198                 archive->forEachFile( Archive::VisitorFunc( &visitor, Archive::eDirectories, 1 ), "sound/" );
 199                 archive->forEachFile( Archive::VisitorFunc( &visitor, Archive::eFilesAndDirectories, 2 ), "sound/" );
 200                 archive->forEachFile( Archive::VisitorFunc( &visitor, Archive::eFilesAndDirectories, 2 ), "" );
 201                 archive->release();
 202         }
 203 }
 204 };
 205
 206 TestArchive g_test;
 207
 208 #endif