mirror of
https://github.com/alliedmodders/hl2sdk.git
synced 2024-12-23 01:59:43 +08:00
437 lines
9.3 KiB
C++
437 lines
9.3 KiB
C++
//====== Copyright © 1996-2005, Valve Corporation, All rights reserved. =======
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//
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// Purpose:
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//
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//=============================================================================
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#include "keyvaluescompiler.h"
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#include "filesystem.h"
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#include "tier1/KeyValues.h"
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extern IFileSystem *g_pFullFileSystem;
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bool CRunTimeKeyValuesStringTable::ReadStringTable( int numStrings, CUtlBuffer& buf )
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{
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Assert( m_Strings.Count() == 0 );
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CUtlVector< int > offsets;
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offsets.EnsureCapacity( numStrings );
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offsets.CopyArray( (int *)( buf.PeekGet() ), numStrings );
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// Skip over data
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buf.SeekGet( CUtlBuffer::SEEK_HEAD, buf.TellGet() + numStrings * sizeof( int ) );
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int stringSize = buf.GetInt();
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// Read in the string table
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m_Strings.EnsureCapacity( numStrings );
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int i;
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for ( i = 0 ; i < numStrings; ++i )
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{
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m_Strings.AddToTail( (const char *)buf.PeekGet( offsets[ i ] ) );
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}
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buf.SeekGet( CUtlBuffer::SEEK_HEAD, buf.TellGet() + stringSize );
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return true;
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}
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void CCompiledKeyValuesWriter::BuildKVData_R( KeyValues *kv, int parent )
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{
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// Add self
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KVInfo_t info;
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info.key = m_StringTable.AddString( kv->GetName() );
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info.value = m_StringTable.AddString( kv->GetString() );
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info.SetSubTree( kv->GetFirstSubKey() != NULL ? true : false );
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info.SetParent( parent );
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int newParent = m_Data.AddToTail( info );
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// Then add children
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for ( KeyValues *sub = kv->GetFirstSubKey(); sub; sub = sub->GetNextKey() )
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{
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BuildKVData_R( sub, newParent );
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}
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// Then add peers
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if ( parent == -1 )
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{
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if ( kv->GetNextKey() )
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{
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BuildKVData_R( kv->GetNextKey(), parent );
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}
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}
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}
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void CCompiledKeyValuesWriter::Describe( const KVFile_t& file )
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{
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Msg( "file( %s )\n", m_StringTable.String( file.filename ) );
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int c = file.numElements;
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for ( int i = 0; i < c; ++i )
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{
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KVInfo_t &info = m_Data[ file.firstElement + i ];
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if ( info.IsSubTree() )
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{
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Msg( "%d: %s -> subtree at parent %i\n",
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file.firstElement + i,
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m_StringTable.String( info.key ),
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info.GetParent() );
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}
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else
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{
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Msg( "%d: %s -> %s at parent %i\n",
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file.firstElement + i,
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m_StringTable.String( info.key ),
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m_StringTable.String( info.value ),
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info.GetParent() );
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}
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}
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}
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void CCompiledKeyValuesWriter::AppendKeyValuesFile( char const *filename )
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{
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KVFile_t kvf;
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kvf.filename = m_StringTable.AddString( filename );
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kvf.firstElement = m_Data.Count();
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KeyValues *kv = new KeyValues( filename );
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if ( kv->LoadFromFile( g_pFullFileSystem, filename ) )
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{
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// Add to dictionary
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// do a depth first traversal of the keyvalues
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BuildKVData_R( kv, -1 );
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}
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kv->deleteThis();
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kvf.numElements = m_Data.Count() - kvf.firstElement;
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// Describe( kvf );
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m_Files.AddToTail( kvf );
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}
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void CCompiledKeyValuesWriter::WriteData( CUtlBuffer& buf )
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{
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int c = m_Data.Count();
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buf.PutInt( c );
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for ( int i = 0; i < c; ++i )
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{
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KVInfo_t &info = m_Data[ i ];
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buf.PutShort( info.key );
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buf.PutShort( info.value );
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buf.PutShort( info.GetParent() );
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buf.PutChar( info.IsSubTree() ? 1 : 0 );
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}
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}
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void CCompiledKeyValuesWriter::WriteFiles( CUtlBuffer &buf )
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{
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int c = m_Files.Count();
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buf.PutInt( c );
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for ( int i = 0; i < c; ++i )
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{
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KVFile_t &file = m_Files[ i ];
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buf.PutShort( file.filename );
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buf.PutShort( file.firstElement );
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buf.PutShort( file.numElements );
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}
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}
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void CCompiledKeyValuesWriter::WriteStringTable( CUtlBuffer& buf )
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{
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int i;
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CUtlVector< int > offsets;
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CUtlBuffer stringBuffer;
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offsets.AddToTail( stringBuffer.TellPut() );
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stringBuffer.PutString( "" );
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// save all the rest
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int c = m_StringTable.GetNumStrings();
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for ( i = 1; i < c; i++)
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{
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offsets.AddToTail( stringBuffer.TellPut() );
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stringBuffer.PutString( m_StringTable.String( i ) );
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}
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buf.Put( offsets.Base(), offsets.Count() * sizeof( int ) );
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buf.PutInt( stringBuffer.TellPut() );
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buf.Put( stringBuffer.Base(), stringBuffer.TellPut() );
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}
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void CCompiledKeyValuesWriter::WriteFile( char const *outfile )
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{
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CUtlBuffer buf;
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// Write the data file out
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KVHeader_t header;
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header.fileid = COMPILED_KEYVALUES_ID;
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header.version = COMPILED_KEYVALUES_VERSION;
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header.numStrings = m_StringTable.GetNumStrings();
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buf.Put( &header, sizeof( header ) );
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WriteStringTable( buf );
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WriteData( buf );
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WriteFiles( buf );
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g_pFullFileSystem->WriteFile( outfile, NULL, buf );
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}
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CCompiledKeyValuesReader::CCompiledKeyValuesReader()
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: m_Dict( 0, 0, FileInfo_t::Less )
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{
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}
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int CCompiledKeyValuesReader::First() const
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{
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return m_Dict.FirstInorder();
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}
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int CCompiledKeyValuesReader::Next( int i ) const
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{
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return m_Dict.NextInorder( i );
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}
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int CCompiledKeyValuesReader::InvalidIndex() const
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{
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return m_Dict.InvalidIndex();
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}
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void CCompiledKeyValuesReader::GetFileName( int index, char *buf, size_t bufsize )
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{
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Assert( buf );
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buf[ 0 ] = 0;
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FileNameHandle_t& handle = m_Dict[ index ].hFile;
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g_pFullFileSystem->String( handle, buf, bufsize );
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}
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bool CCompiledKeyValuesReader::LoadFile( char const *filename )
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{
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int i;
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m_LoadBuffer.Purge();
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g_pFullFileSystem->ReadFile( filename, NULL, m_LoadBuffer );
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KVHeader_t header;
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m_LoadBuffer.Get( &header, sizeof( header ) );
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if ( header.fileid != COMPILED_KEYVALUES_ID )
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{
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return false;
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}
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if ( header.version != COMPILED_KEYVALUES_VERSION )
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{
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return false;
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}
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if ( !m_StringTable.ReadStringTable( header.numStrings, m_LoadBuffer ) )
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{
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return false;
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}
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// Now parse the data
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int dataCount = m_LoadBuffer.GetInt();
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m_Data.EnsureCapacity( dataCount );
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for ( i = 0; i < dataCount; ++i )
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{
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KVInfo_t info;
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info.key = m_LoadBuffer.GetShort();
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info.value = m_LoadBuffer.GetShort();
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info.SetParent( m_LoadBuffer.GetShort() );
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info.SetSubTree( m_LoadBuffer.GetChar() == 1 ? true : false );
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m_Data.AddToTail( info );
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}
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int fileCount = m_LoadBuffer.GetInt();
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for ( i = 0; i < fileCount; ++i )
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{
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FileInfo_t kvf;
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short fileNameString = m_LoadBuffer.GetShort();
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kvf.hFile = g_pFullFileSystem->FindOrAddFileName( m_StringTable.Lookup( fileNameString ) );
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kvf.nFirstIndex = m_LoadBuffer.GetShort();
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kvf.nCount = m_LoadBuffer.GetShort();
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m_Dict.Insert( kvf );
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}
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return true;
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}
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struct CreateHelper_t
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{
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int index;
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KeyValues *kv;
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KeyValues *tail;
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static bool Less( const CreateHelper_t& lhs, const CreateHelper_t& rhs )
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{
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return lhs.index < rhs.index;
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}
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};
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KeyValues *CCompiledKeyValuesReader::CreateFromData( const FileInfo_t& info )
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{
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KeyValues *head = new KeyValues( "" );
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if ( CreateInPlaceFromData( *head, info ) )
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{
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return head;
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}
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else
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{
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head->deleteThis();
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return NULL;
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}
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}
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bool CCompiledKeyValuesReader::CreateInPlaceFromData( KeyValues& head, const FileInfo_t& info )
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{
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int first = info.nFirstIndex;
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int num = info.nCount;
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KeyValues *root = NULL;
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KeyValues *tail = NULL;
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CUtlRBTree< CreateHelper_t, int > helper( 0, 0, CreateHelper_t::Less );
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for ( int i = 0; i < num; ++i )
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{
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int offset = first + i;
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KVInfo_t& info = m_Data[ offset ];
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if ( info.GetParent() != -1 )
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{
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CreateHelper_t search;
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search.index = info.GetParent();
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int idx = helper.Find( search );
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if ( idx == helper.InvalidIndex() )
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{
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return false;
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}
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KeyValues *parent = helper[ idx ].kv;
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Assert( parent );
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KeyValues *sub = new KeyValues( m_StringTable.Lookup( info.key ) );
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if ( !info.IsSubTree() )
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{
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sub->SetStringValue(m_StringTable.Lookup( info.value ) );
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}
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if ( !parent->GetFirstSubKey() )
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{
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parent->AddSubKey( sub );
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}
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else
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{
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KeyValues *last = helper[ idx ].tail;
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last->SetNextKey( sub );
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}
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helper[ idx ].tail = sub;
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CreateHelper_t insert;
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insert.index = offset;
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insert.kv = sub;
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insert.tail = NULL;
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helper.Insert( insert );
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}
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else
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{
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if ( !root )
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{
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root = &head;
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root->SetName( m_StringTable.Lookup( info.key ) );
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tail = root;
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CreateHelper_t insert;
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insert.index = offset;
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insert.kv = root;
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insert.tail = NULL;
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helper.Insert( insert );
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}
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else
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{
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CreateHelper_t insert;
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insert.index = offset;
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insert.kv = new KeyValues( m_StringTable.Lookup( info.key ) );
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insert.tail = NULL;
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helper.Insert( insert );
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tail->SetNextKey( insert.kv );
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tail = insert.kv;
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}
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}
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}
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return true;
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}
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bool CCompiledKeyValuesReader::InstanceInPlace( KeyValues& head, char const *kvfilename )
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{
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char sz[ 512 ];
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Q_strncpy( sz, kvfilename, sizeof( sz ) );
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Q_FixSlashes( sz );
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FileInfo_t search;
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search.hFile = g_pFullFileSystem->FindOrAddFileName( sz );
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int idx = m_Dict.Find( search );
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if ( idx == m_Dict.InvalidIndex() )
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{
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return false;
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}
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const FileInfo_t& info = m_Dict[ idx ];
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return CreateInPlaceFromData( head, info );
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}
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KeyValues *CCompiledKeyValuesReader::Instance( char const *kvfilename )
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{
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char sz[ 512 ];
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Q_strncpy( sz, kvfilename, sizeof( sz ) );
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Q_FixSlashes( sz );
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FileInfo_t search;
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search.hFile = g_pFullFileSystem->FindOrAddFileName( sz );
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int idx = m_Dict.Find( search );
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if ( idx == m_Dict.InvalidIndex() )
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{
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return NULL;
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}
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const FileInfo_t& info = m_Dict[ idx ];
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return CreateFromData( info );
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}
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bool CCompiledKeyValuesReader::LookupKeyValuesRootKeyName( char const *kvfilename, char *outbuf, size_t bufsize )
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{
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char sz[ 512 ];
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Q_strncpy( sz, kvfilename, sizeof( sz ) );
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Q_FixSlashes( sz );
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FileInfo_t search;
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search.hFile = g_pFullFileSystem->FindOrAddFileName( sz );
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int idx = m_Dict.Find( search );
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if ( idx == m_Dict.InvalidIndex() )
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{
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return false;
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}
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const FileInfo_t& info = m_Dict[ idx ];
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Q_strncpy( outbuf, m_StringTable.Lookup( m_Data[ info.nFirstIndex ].key ), bufsize );
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return true;
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}
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