comparison: src/demo.cpp
src/demo.cpp
- changeset 6
- 67b6ef6917ba
- child 8
- e8f645d9f28f
equal
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| 5:3c04e05ab24f | 6:67b6ef6917ba |
|---|---|
| 1 #include <QFile> | |
| 2 #include <QDataStream> | |
| 3 #include <QMessageBox> | |
| 4 #include <QProcess> | |
| 5 #include "demo.h" | |
| 6 #include "bytestream.h" | |
| 7 #include "misc.h" | |
| 8 | |
| 9 static const uint32 g_demoSignature = makeByteID( 'Z', 'C', 'L', 'D' ); | |
| 10 | |
| 11 // ============================================================================= | |
| 12 // ----------------------------------------------------------------------------- | |
| 13 static str tr( const char* msg ) { | |
| 14 return QObject::tr( msg ); | |
| 15 } | |
| 16 | |
| 17 // ============================================================================= | |
| 18 // ----------------------------------------------------------------------------- | |
| 19 static void error( str msg ) { | |
| 20 QMessageBox::critical( null, "Error", msg ); | |
| 21 } | |
| 22 | |
| 23 // ============================================================================= | |
| 24 // ----------------------------------------------------------------------------- | |
| 25 static int getVersionIndex( str ver ) { | |
| 26 int i; | |
| 27 | |
| 28 for( i = 0; i < g_zanVersions.size(); ++i ) | |
| 29 if( g_zanVersions[i] == ver ) | |
| 30 return i; | |
| 31 | |
| 32 return -1; | |
| 33 } | |
| 34 | |
| 35 // ============================================================================= | |
| 36 // ----------------------------------------------------------------------------- | |
| 37 static str findWAD( str name ) { | |
| 38 QSettings cfg; | |
| 39 list<var> paths = cfg.value( "wads/paths", list<var>() ).toList(); | |
| 40 | |
| 41 if( paths.size() == 0 ) { | |
| 42 error( tr( "No WAD paths configured!" )); | |
| 43 exit( 9 ); | |
| 44 } | |
| 45 | |
| 46 for( var it : paths ) { | |
| 47 str fullpath = fmt( "%1/%2", it.toString(), name ); | |
| 48 QFile f( fullpath ); | |
| 49 | |
| 50 if( f.exists() ) | |
| 51 return fullpath; | |
| 52 } | |
| 53 | |
| 54 return ""; | |
| 55 } | |
| 56 | |
| 57 // ============================================================================= | |
| 58 // ----------------------------------------------------------------------------- | |
| 59 int launchDemo( str path ) { | |
| 60 FILE* fp = fopen( path.toStdString().c_str(), "r" ); | |
| 61 | |
| 62 if( !fp ) { | |
| 63 error( fmt( tr( "Couldn't open '%1' for reading: %2" ), path, strerror( errno ))); | |
| 64 return 1; | |
| 65 } | |
| 66 | |
| 67 fseek( fp, 0, SEEK_END ); | |
| 68 const size_t fsize = ftell( fp ); | |
| 69 rewind( fp ); | |
| 70 | |
| 71 char* buf = new char[fsize]; | |
| 72 | |
| 73 if( fread( buf, 1, fsize, fp ) != fsize ) { | |
| 74 error( tr( "I/O error" )); | |
| 75 delete[] buf; | |
| 76 return 2; | |
| 77 } | |
| 78 | |
| 79 Bytestream s( buf, fsize ); | |
| 80 delete[] buf; | |
| 81 | |
| 82 uint8 offset; | |
| 83 uint32 length; | |
| 84 | |
| 85 struct { | |
| 86 str netname, skin, className; | |
| 87 uint8 gender, handicap, unlagged, respawnOnFire, ticsPerUpdate, connectionType; | |
| 88 uint32 color, aimdist, railcolor; | |
| 89 } userinfo; | |
| 90 | |
| 91 // Check signature | |
| 92 { | |
| 93 uint32 sig; | |
| 94 | |
| 95 if( !s.readLong( sig ) || sig != g_demoSignature ) { | |
| 96 error( fmt( tr( "'%1' is not a Zandronum demo file!" ), path )); | |
| 97 return 3; | |
| 98 } | |
| 99 } | |
| 100 | |
| 101 // Zandronum stores CLD_DEMOLENGTH after the signature. This is also the | |
| 102 // first demo enumerator, so we can determine the offset (which is variable!) | |
| 103 // from this byte | |
| 104 s.readByte( offset ); | |
| 105 s.readLong( length ); | |
| 106 | |
| 107 uint16 zanversionID, numWads; | |
| 108 uint32 longSink; | |
| 109 str zanversion; | |
| 110 list<str> wads; | |
| 111 bool ready = false; | |
| 112 | |
| 113 for( ;; ) { | |
| 114 uint8 header; | |
| 115 if( !s.readByte( header )) | |
| 116 break; | |
| 117 | |
| 118 if( header == DemoBodyStart + offset ) { | |
| 119 ready = true; | |
| 120 break; | |
| 121 } elif( header == DemoVersion + offset ) { | |
| 122 s.readShort( zanversionID ); | |
| 123 s.readString( zanversion ); | |
| 124 s.readLong( longSink ); // rng seed - we don't need it | |
| 125 } elif( header == DemoUserInfo + offset ) { | |
| 126 s.readString( userinfo.netname ); | |
| 127 s.readByte( userinfo.gender ); | |
| 128 s.readLong( userinfo.color ); | |
| 129 s.readLong( userinfo.aimdist ); | |
| 130 s.readString( userinfo.skin ); | |
| 131 s.readLong( userinfo.railcolor ); | |
| 132 s.readByte( userinfo.handicap ); | |
| 133 s.readByte( userinfo.unlagged ); | |
| 134 s.readByte( userinfo.respawnOnFire ); | |
| 135 s.readByte( userinfo.connectionType ); | |
| 136 s.readString( userinfo.className ); | |
| 137 } elif( header == DemoWads + offset ) { | |
| 138 s.readShort( numWads ); | |
| 139 | |
| 140 for( uint8 i = 0; i < numWads; ++i ) { | |
| 141 str wad; | |
| 142 s.readString( wad ); | |
| 143 wads << wad; | |
| 144 } | |
| 145 | |
| 146 // The demo has two checksum strings. We're not interested | |
| 147 // in them though. | |
| 148 str sink; | |
| 149 for( int i = 0; i < 2; ++i ) | |
| 150 s.readString( sink ); | |
| 151 } else { | |
| 152 error( fmt( tr( "Unknown header %1!\n" ), (int) header )); | |
| 153 return 4; | |
| 154 } | |
| 155 } | |
| 156 | |
| 157 if( !ready ) { | |
| 158 error( fmt( tr( "Incomplete demo header in '%s'!" ), path )); | |
| 159 return 5; | |
| 160 } | |
| 161 | |
| 162 int i = getVersionIndex( zanversion ); | |
| 163 if( i == -1 ) { | |
| 164 error( fmt( tr( "Unknown Zandronum version %1!\n" ), zanversion )); | |
| 165 return 6; | |
| 166 } | |
| 167 | |
| 168 QSettings cfg; | |
| 169 str binarypath = cfg.value( binaryConfigName( zanversion )).toString(); | |
| 170 | |
| 171 if( binarypath.isEmpty() ) { | |
| 172 error( fmt( tr( "No binary path specified for Zandronum version %1!\n" ), zanversion )); | |
| 173 return 7; | |
| 174 } | |
| 175 | |
| 176 str iwadpath; | |
| 177 list<str> pwadpaths; | |
| 178 | |
| 179 // Find the WADs | |
| 180 for( const str& wad : wads ) { | |
| 181 str path = findWAD( wad ); | |
| 182 | |
| 183 // IWAD names can appear in uppercase too. Linux is case-sensitive, so.. | |
| 184 if( &wad == &wads[0] && path.isEmpty() ) | |
| 185 path = findWAD( wad.toUpper() ); | |
| 186 | |
| 187 if( path.isEmpty() ) { | |
| 188 error( fmt( tr( "Couldn't find %1!\n" ), wad )); | |
| 189 return 8; | |
| 190 } | |
| 191 | |
| 192 if( &wad == &wads[0] ) | |
| 193 iwadpath = path; | |
| 194 else | |
| 195 pwadpaths << path; | |
| 196 } | |
| 197 | |
| 198 print( "binary: %1\n", binarypath ); | |
| 199 print( "iwad: %1\npwads: %2\n", iwadpath, pwadpaths ); | |
| 200 | |
| 201 QStringList cmdlineList ({ | |
| 202 "-iwad", | |
| 203 iwadpath, | |
| 204 "-playdemo", | |
| 205 path | |
| 206 }); | |
| 207 | |
| 208 if( pwadpaths.size() > 0 ) { | |
| 209 cmdlineList << "-file"; | |
| 210 cmdlineList << pwadpaths; | |
| 211 } | |
| 212 | |
| 213 print( "commandline: %1 %2\n", binarypath, cmdlineList.join( " " )); | |
| 214 QProcess* proc = new QProcess; | |
| 215 proc->start( binarypath, cmdlineList ); | |
| 216 proc->waitForFinished( -1 ); | |
| 217 return 0; | |
| 218 } |
