1HEADmaster

6 files changed, 1077 insertions, 0 deletions

diff --git a/utils/mdlcheck/mdlcheck.cpp b/utils/mdlcheck/mdlcheck.cpp
new file mode 100644
index 0000000..9808680
--- /dev/null
+++ b/utils/mdlcheck/mdlcheck.cpp
@@ -0,0 +1,515 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//=============================================================================//
+#include "stdafx.h"
+#include <stdio.h>
+#include <windows.h>
+#include "mdlcheck_util.h"
+#include "tier0/dbg.h"
+#include "utldict.h"
+#include "tier1/utlstring.h"
+
+bool uselogfile = false;
+bool verbose = false;
+bool checkani = false;
+
+struct QCFile
+{
+	char outputmodel[ MAX_PATH ];
+};
+
+struct ModelFile
+{
+	char qcfile[ MAX_PATH ];
+	int version;
+	bool needsrecompile;
+	int toobig;
+};
+
+struct AnalysisData
+{
+	CUtlDict< QCFile, int >		files;  // .qc to modelname lookup
+	CUtlDict< ModelFile, int >	models;  // .mdl to .qc/version lookup
+
+	CUtlSymbolTable				symbols;
+};
+
+static AnalysisData g_Analysis;
+
+
+SpewRetval_t SpewFunc( SpewType_t type, char const *pMsg )
+{	
+	printf( "%s", pMsg );
+	OutputDebugString( pMsg );
+	
+	if ( type == SPEW_ERROR )
+	{
+		printf( "\n" );
+		OutputDebugString( "\n" );
+	}
+
+	return SPEW_CONTINUE;
+}
+
+
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void printusage( void )
+{
+	vprint( 0, "usage:  mdlcheck <model source directory> <.mdl file directory>\n\
+		\t-v = verbose output\n\
+		\t-l = log to file log.txt\n\
+		\t-a = check for large animation data\n\
+		\ne.g.:  mdlcheck -l u:/hl2/hl2/hl2models u:/hl2/hl2/models\n" );
+
+	// Exit app
+	exit( 1 );
+}
+
+void BuildFileList_R( CUtlVector< CUtlSymbol >& files, char const *dir, char const *extension )
+{
+	WIN32_FIND_DATA wfd;
+
+	char directory[ 256 ];
+	char filename[ 256 ];
+	HANDLE ff;
+
+	sprintf( directory, "%s\\*.*", dir );
+
+	if ( ( ff = FindFirstFile( directory, &wfd ) ) == INVALID_HANDLE_VALUE )
+		return;
+
+	int extlen = strlen( extension );
+
+	do
+	{
+		if ( wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY )
+		{
+
+			if ( wfd.cFileName[ 0 ] == '.' )
+				continue;
+
+			// Recurse down directory
+			sprintf( filename, "%s\\%s", dir, wfd.cFileName );
+			BuildFileList_R( files, filename, extension );
+		}
+		else
+		{
+			int len = strlen( wfd.cFileName );
+			if ( len > extlen )
+			{
+				if ( strstr( wfd.cFileName, ".360." ) )
+				{
+				}
+				else if ( !stricmp( &wfd.cFileName[ len - extlen ], extension ) )
+				{
+					char filename[ MAX_PATH ];
+					Q_snprintf( filename, sizeof( filename ), "%s\\%s", dir, wfd.cFileName );
+					_strlwr( filename );
+
+					Q_FixSlashes( filename );
+
+					CUtlSymbol sym = g_Analysis.symbols.AddString( filename );
+					files.AddToTail( sym );
+				}
+			}
+		}
+	} while ( FindNextFile( ff, &wfd ) );
+}
+
+void BuildFileList( CUtlVector< CUtlSymbol >& files, char const *rootdir, char const *extension )
+{
+	files.RemoveAll();
+	BuildFileList_R( files, rootdir, extension );
+}
+
+//-----------------------------------------------------------------------------
+// This is here because scriplib.cpp is included in this project but cmdlib.cpp
+// is not, but scriplib.cpp uses some stuff from cmdlib.cpp, same with
+// LoadFile and ExpandPath above.  The only thing that currently uses this
+// is $include in scriptlib, if this function returns 0, $include will
+// behave the way it did before this change
+//-----------------------------------------------------------------------------
+int CmdLib_ExpandWithBasePaths( CUtlVector< CUtlString > &expandedPathList, const char *pszPath )
+{
+	return 0;
+}
+
+
+bool GetModelNameFromSourceFile( char const *filename, char *modelname, int maxlen )
+{
+	modelname[0]=0;
+
+	int filelength;
+	char *buffer = (char *)COM_LoadFile( filename, &filelength );
+	if ( !buffer )
+	{
+		vprint( 0, "Couldn't load %s\n", filename );
+		return false;
+	}
+
+	bool valid = false;
+
+	// Parse tokens
+	char *current = buffer;
+	while ( current )
+	{
+		current = CC_ParseToken( current );
+		if ( strlen( com_token ) <= 0 )
+			break;
+
+		if ( stricmp( com_token, "$modelname" ) )
+			continue;
+
+		current = CC_ParseToken( current );
+
+		strcpy( modelname, com_token );
+		_strlwr( modelname );
+
+		Q_FixSlashes( modelname );
+
+		Q_DefaultExtension( modelname, ".mdl", maxlen );
+
+		valid = true;
+		break;
+	}
+
+	COM_FreeFile( (unsigned char *)buffer );
+
+	if ( !valid )
+	{
+		vprint_queued( 0, ".qc file %s missing $modelname directive!!!\n", filename );
+	}
+	return valid;
+}
+
+bool AddModelNameFromSource( CUtlDict< ModelFile, int >& models, char const *filename, char const *modelname, int offset )
+{
+	int idx = models.Find( modelname );
+	if ( idx != models.InvalidIndex() )
+	{
+		char shortname[ MAX_PATH ];
+		char shortname2[ MAX_PATH ];
+		strcpy( shortname, &filename[ offset ] );
+		strcpy( shortname2, &models[ idx ].qcfile[ offset ] );
+
+		vprint_queued( 0, "multiple .qc's build %s\n  %s\n  %s\n",
+			modelname,
+			shortname, 
+			shortname2 );
+		return false;
+	}
+
+	ModelFile mf;
+	strcpy( mf.qcfile, filename );
+	_strlwr( mf.qcfile );
+	mf.version = 0;
+
+	models.Insert( modelname, mf );
+	return true;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Input  : *sourcetreebase - 
+//			*subdir - 
+//			*baseentityclass - 
+//-----------------------------------------------------------------------------
+void ProcessSourceDirectory( char const *basedir )
+{
+	// vprint( 0, "building .qc list\n" );
+
+	CUtlVector< CUtlSymbol > files;
+
+	BuildFileList( files, basedir, ".qc" );
+
+	// vprint( 0, "found %i .qc files\n\n", files.Count() );
+
+	int offset = strlen( basedir ) + 1;
+
+	// Add files to QC Files dictionary
+	int c = files.Count();
+	for ( int i = 0; i < c; i++ )
+	{
+		QCFile qcf;
+		memset( &qcf, 0, sizeof( qcf ) );
+		CUtlSymbol& sym = files[ i ];
+		g_Analysis.files.Insert( g_Analysis.symbols.String( sym ), qcf );
+	}
+
+	vprint_queued( 0, "%s", "\n\n" );
+
+	// Now iterate .qc files, looking into each to find the output model name
+	c = g_Analysis.files.Count();
+	int valid = 0;
+	for ( int i = 0; i < c; i++ )
+	{
+		char modelname[ 256 ];
+		char const *filename = g_Analysis.files.GetElementName( i );
+		if ( verbose )
+		{
+			vprint( 0, "checking %i: %s\n", i, filename );
+		}
+		if ( GetModelNameFromSourceFile( filename, modelname, sizeof( modelname ) ) )
+		{
+			if ( AddModelNameFromSource( g_Analysis.models, filename, modelname, offset ) )
+			{
+				valid++;
+			}
+		}
+	}
+
+	int ecount = c - valid;
+	if (ecount != 0)
+	{
+		// vprint( 0, "\n summary:  found %i/%i (%.2f percent) .qc errors\n\n", ecount, c, 100.0 * ecount / max( c, 1 ) );
+		vprint( 0, "\n summary:  found %i .qc errors\n\n", ecount );
+	}
+}
+
+#include "studio.h"
+
+#define IDSTUDIOHEADER	(('T'<<24)+('S'<<16)+('D'<<8)+'I')
+														// little-endian "IDST"
+#define IDSTUDIOANIMGROUPHEADER	(('G'<<24)+('A'<<16)+('D'<<8)+'I')
+														// little-endian "IDAG"
+
+
+byte buffer[1024*1024*4];
+bool ValidateModelFile( char const *modelname, int offset )
+{
+	studiohdr_t *pHdr;
+	FILE *fp;
+
+	pHdr = (studiohdr_t *)buffer;
+
+	fp = fopen( modelname, "rb" );
+	if ( !fp )
+	{
+		vprint_queued( 0, "Unable to open .mdl file %s\n", modelname );
+		return false;
+	}
+
+	// See if there's a .qc which builds this model
+	char shortname[ MAX_PATH ];
+	strcpy( shortname, &modelname[ offset ] );
+
+	Q_FixSlashes( shortname );
+
+	fread( buffer, sizeof( buffer ), 1, fp );
+	fclose( fp );
+
+	if ( pHdr->id != IDSTUDIOHEADER )
+	{
+		vprint_queued( 0, "Bogus studiomdl header for %s, expecting 'IDST' four cc code\n", shortname );
+		return false;
+	}
+
+	bool valid = true;
+	bool needsrecompile = false;
+	int toobig = 0;
+
+	// previous version is compatible
+	if ( pHdr->version < 44 || pHdr->version > STUDIO_VERSION )
+	{
+		vprint_queued( 0, "Outdated model %s (ver %i != %i)\n", shortname, pHdr->version, STUDIO_VERSION );
+		valid = false;
+	}
+
+	if (!Studio_ConvertStudioHdrToNewVersion( pHdr ))
+	{
+		// vprint( 0, "%s needs to be recompiled\n", pHdr->pszName() );
+		needsrecompile = true;
+	}
+
+	if (checkani)
+	{
+		// HACK: since the sequence data is written after the animation data, this is rough way to determine how much anim data there really is
+		int totalanimsize = pHdr->localseqindex - pHdr->localanimindex - pHdr->numlocalanim * sizeof( mstudioanimdesc_t );
+		if (pHdr->pLocalAnimdesc( 0 )->animblock == 0 && totalanimsize > 1024 * 64)
+		{
+			toobig = totalanimsize;
+		}
+	}
+
+	int idx = g_Analysis.models.Find( shortname );
+	if ( idx ==  g_Analysis.models.InvalidIndex() )
+	{
+		vprint_queued( 0, "Couldn't find a .qc which builds %s\n", shortname );
+		valid = false;
+	}
+	else
+	{
+		g_Analysis.models[idx].version = pHdr->version;
+		g_Analysis.models[idx].needsrecompile = needsrecompile;
+		g_Analysis.models[idx].toobig = toobig;
+	}
+
+
+	return valid;
+}
+
+void ProcessModelsDirectory( char const *basedir )
+{
+	// vprint( 0, "building .mdl list\n" );
+
+	CUtlVector< CUtlSymbol > models;
+
+	BuildFileList( models, basedir, ".mdl" );
+
+	// vprint( 0, "found %i .mdl files\n\n", models.Count() );
+
+	int offset = strlen( basedir ) + 1;
+
+	// Now iterate model files and check version tag and whether a .qc exists which builds the .mdl
+
+	vprint_queued( 0, "%s", "\n\n" );
+
+	// Add files to QC Files dictionary
+	int c = models.Count();
+	int valid = 0;
+	for ( int i = 0; i < c; i++ )
+	{
+		QCFile qcf;
+		memset( &qcf, 0, sizeof( qcf ) );
+		CUtlSymbol& sym = models[ i ];
+
+		char const *modelname = g_Analysis.symbols.String( sym );
+
+		if ( verbose )
+		{
+			vprint( 0, "checking %i .mdl %s\n", i, modelname );
+		}
+
+		if ( ValidateModelFile( modelname, offset ) )
+		{
+			valid++;
+		}
+	}
+
+	int ecount = c - valid;
+	if (ecount != 0)
+	{
+		// vprint( 0, "\n summary:  found %i/%i (%.2f percent) .mdl errors\n", ecount, c, 100.0 * ecount / max( c, 1 ) );
+		vprint( 0, "\n summary:  found %i .mdl errors\n", ecount );
+	}
+}
+
+
+
+void CheckForUnbuiltModels( )
+{
+	vprint_queued( 0, "%s", "\n\n" );
+
+	int c = g_Analysis.models.Count();
+	int valid = 0;
+	for ( int i = 0; i < c; i++ )
+	{
+		if (g_Analysis.models[i].version == 0)
+		{
+			vprint_queued( 0, "Can't find %s,\n\tbuilt by %s\n", g_Analysis.models.GetElementName( i ), g_Analysis.models[i].qcfile );
+		}
+		else if (g_Analysis.models[i].needsrecompile)
+		{
+			vprint_queued( 0, "%s out of date,\n\tbuilt by %s\n", g_Analysis.models.GetElementName( i ), g_Analysis.models[i].qcfile );
+		}
+		else if (g_Analysis.models[i].toobig)
+		{
+			vprint_queued( 0, "%s needs $animblocksize command (%d of animdata),\n\tbuilt by %s\n", g_Analysis.models.GetElementName( i ), g_Analysis.models[i].toobig, g_Analysis.models[i].qcfile );
+		}
+		else
+		{
+			valid++;
+		}
+	}
+
+	int ecount = c - valid;
+	if (ecount != 0)
+	{
+		// vprint( 0, "\n summary:  found %i/%i (%.2f percent) missing .mdl's\n", ecount, c, 100.0 * ecount / max( c, 1 ) );
+		vprint( 0, "\n summary:  found %i missing .mdl's\n", ecount );
+	}
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void CheckLogFile( void )
+{
+	if ( uselogfile )
+	{
+		_unlink( "log.txt" );
+		vprint( 0, "    Outputting to log.txt\n" );
+	}
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Input  : argc - 
+//			argv[] - 
+// Output : int
+//-----------------------------------------------------------------------------
+int main( int argc, char* argv[] )
+{
+	SpewOutputFunc( SpewFunc );
+
+	int i = 1;
+	for (i ; i<argc ; i++)
+	{
+		if ( argv[ i ][ 0 ] == '-' )
+		{
+			switch( argv[ i ][ 1 ] )
+			{
+			case 'l':
+				uselogfile = true;
+				break;
+			case 'v':
+				verbose = true;
+				break;
+			case 'a':
+				checkani = true;
+				break;
+			default:
+				printusage();
+				break;
+			}
+		}
+	}
+
+	vprint( 0, "Valve Software - mdlcheck.exe (%s)\n", __DATE__ );
+	vprint( 0, "--- Source Model Consistency Checker ---\n" );
+
+	if ( argc < 3 || ( i != argc ) )
+	{
+		printusage();
+	}
+
+	CheckLogFile();
+
+	char modelsources[ 256 ];
+	strcpy( modelsources, argv[ i - 2 ] );
+	char modelsdir[ 256 ];
+	strcpy( modelsdir, argv[ i - 1 ] );
+
+	if ( !strstr( modelsdir, "models" ) )
+	{
+		vprint( 0, "Models dir %s looks invalid (format:  u:/tf2/hl2/models)\n", modelsdir );
+		return 0;
+	}
+
+	Q_StripTrailingSlash( modelsources );
+	Q_StripTrailingSlash( modelsdir );
+
+	ProcessSourceDirectory( modelsources );
+	ProcessModelsDirectory( modelsdir );
+	CheckForUnbuiltModels( );
+
+	dump_print_queue( );
+
+	return 0;
+}
diff --git a/utils/mdlcheck/mdlcheck.vpc b/utils/mdlcheck/mdlcheck.vpc
new file mode 100644
index 0000000..ad8dd1a
--- /dev/null
+++ b/utils/mdlcheck/mdlcheck.vpc
@@ -0,0 +1,66 @@
+//-----------------------------------------------------------------------------
+//	MDLCHECK.VPC
+//
+//	Project Script
+//-----------------------------------------------------------------------------
+
+$Macro SRCDIR		"..\.."
+$Macro OUTBINDIR	"$SRCDIR\..\game\bin"
+
+$Include "$SRCDIR\vpc_scripts\source_exe_con_base.vpc"
+
+$Configuration
+{
+	$Compiler
+	{
+		$AdditionalIncludeDirectories		"$BASE,..\common"
+		$Create/UsePrecompiledHeader		"Use Precompiled Header (/Yu)"
+		$PrecompiledHeaderFile				"Debug/mdlcheck.pch"
+	}
+}
+
+$Project "Mdlcheck"
+{
+	$Folder	"Source Files"
+	{
+		-$File	"$SRCDIR\public\tier0\memoverride.cpp"
+		$File	"mdlcheck.cpp"
+		$File	"mdlcheck_util.cpp"
+		$File	"StdAfx.cpp"
+		{
+			$Configuration
+			{
+				$Compiler
+				{
+					$Create/UsePrecompiledHeader		"Create Precompiled Header (/Yc)"
+				}
+			}
+		}
+	}
+
+	$Folder	"Header Files"
+	{
+		$File	"$SRCDIR\public\tier0\basetypes.h"
+		$File	"$SRCDIR\public\tier0\commonmacros.h"
+		$File	"$SRCDIR\public\tier0\dbg.h"
+		$File	"$SRCDIR\public\tier0\fasttimer.h"
+		$File	"$SRCDIR\public\mathlib\mathlib.h"
+		$File	"mdlcheck_util.h"
+		$File	"$SRCDIR\public\tier0\memdbgon.h"
+		$File	"$SRCDIR\public\tier0\platform.h"
+		$File	"$SRCDIR\public\tier0\protected_things.h"
+		$File	"StdAfx.h"
+		$File	"$SRCDIR\public\string_t.h"
+		$File	"$SRCDIR\public\tier1\strtools.h"
+		$File	"$SRCDIR\public\studio.h"
+		$File	"$SRCDIR\public\tier1\utldict.h"
+		$File	"$SRCDIR\public\tier1\utlmemory.h"
+		$File	"$SRCDIR\public\tier1\utlrbtree.h"
+		$File	"$SRCDIR\public\tier1\utlsymbol.h"
+		$File	"$SRCDIR\public\tier1\utlvector.h"
+		$File	"$SRCDIR\public\mathlib\vector.h"
+		$File	"$SRCDIR\public\mathlib\vector2d.h"
+		$File	"$SRCDIR\public\mathlib\vector4d.h"
+		$File	"$SRCDIR\public\vstdlib\vstdlib.h"
+	}
+}
diff --git a/utils/mdlcheck/mdlcheck_util.cpp b/utils/mdlcheck/mdlcheck_util.cpp
new file mode 100644
index 0000000..660c4ea
--- /dev/null
+++ b/utils/mdlcheck/mdlcheck_util.cpp
@@ -0,0 +1,424 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//=============================================================================//
+#include "stdafx.h"
+#include <io.h>
+#include <stdio.h>
+#include <windows.h>
+#include "mdlcheck_util.h"
+#include "tier0/dbg.h"
+#include "utlvector.h"
+
+extern bool uselogfile;
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Input  : depth - 
+//			*fmt - 
+//			... - 
+//-----------------------------------------------------------------------------
+void vprint( int depth, const char *fmt, ... )
+{
+	char string[ 8192 ];
+	va_list va;
+	va_start( va, fmt );
+	vsprintf( string, fmt, va );
+	va_end( va );
+
+	FILE *fp = NULL;
+
+	if ( uselogfile )
+	{
+		fp = fopen( "log.txt", "ab" );
+	}
+
+	while ( depth-- > 0 )
+	{
+		printf( "  " );
+		OutputDebugString( "  " );
+		if ( fp )
+		{
+			fprintf( fp, "  " );
+		}
+	}
+
+	::printf( "%s", string );
+	OutputDebugString( string );
+
+	if ( fp )
+	{
+		char *p = string;
+		while ( *p )
+		{
+			if ( *p == '\n' )
+			{
+				fputc( '\r', fp );
+			}
+			fputc( *p, fp );
+			p++;
+		}
+		fclose( fp );
+	}
+}
+
+
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Input  : depth - 
+//			*fmt - 
+//			... - 
+//-----------------------------------------------------------------------------
+CUtlVector< char * > printQueue;
+
+void vprint_queued( int depth, const char *fmt, ... )
+{
+	char string[ 8192 ];
+	strnset( string, ' ', depth * 2 );
+
+	va_list va;
+	va_start( va, fmt );
+	vsprintf( &string[depth * 2], fmt, va );
+	va_end( va );
+
+	printQueue.AddToTail( strdup( string ) );
+}
+
+void dump_print_queue( )
+{
+	FILE *fp = NULL;
+
+	if ( uselogfile )
+	{
+		fp = fopen( "log.txt", "ab" );
+	}
+
+	for (int i = 0; i < printQueue.Count(); i++)
+	{
+		::printf( "%s", printQueue[i] );
+		OutputDebugString( printQueue[i] );
+
+		if ( fp )
+		{
+			char *p = printQueue[i];
+			while ( *p )
+			{
+				if ( *p == '\n' )
+				{
+					fputc( '\r', fp );
+				}
+				fputc( *p, fp );
+				p++;
+			}
+		}
+	}
+	if (fp)
+	{
+		fclose( fp );
+	}
+	printQueue.RemoveAll();
+}
+
+
+
+bool com_ignorecolons = false;  // YWB:  Ignore colons as token separators in COM_Parse
+bool com_ignoreinlinecomment = false;
+static bool s_com_token_unget = false;
+char	com_token[1024];
+int linesprocessed = 0;
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void CC_UngetToken( void )
+{
+	s_com_token_unget = true;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Input  : ch - 
+// Output : Returns true on success, false on failure.
+//-----------------------------------------------------------------------------
+bool CC_IsBreakChar( char ch )
+{
+	bool brk = false;
+	switch ( ch )
+	{
+	case '{':
+	case '}':
+	case ')':
+	case '(':
+	case '[':
+	case ']':
+//	case '\'':
+//	case '/':
+	case ',':
+	case ';':
+	case '<':
+	case '>':
+		brk = true;
+		break;
+		
+	case ':':
+		if ( !com_ignorecolons )
+			brk = true;
+		break;
+	default:
+		break;
+	}
+	return brk;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Input  : *data - 
+// Output : char
+//-----------------------------------------------------------------------------
+char *CC_ParseToken(char *data)
+{
+	int             c;
+	int             len;
+	
+	if ( s_com_token_unget )
+	{
+		s_com_token_unget = false;
+		return data;
+	}
+
+	len = 0;
+	com_token[0] = 0;
+	
+	if (!data)
+		return NULL;
+		
+// skip whitespace
+skipwhite:
+	while ( (c = *data) <= ' ')
+	{
+		if (c == 0)
+			return NULL;                    // end of file;
+		if ( c== '\n' )
+		{
+			linesprocessed++;
+		}
+		data++;
+	}
+	
+// skip // comments
+	if ( !com_ignoreinlinecomment )
+	{
+		if (c=='/' && data[1] == '/')
+		{
+			while (*data && *data != '\n')
+				data++;
+			goto skipwhite;
+		}
+	}
+	
+	if ( c == '/' && data[1] == '*' )
+	{
+		while (data[0] && data[1] && !( data[0] == '*' && data[1] == '/' ) )
+		{
+			if ( *data == '\n' )
+			{
+				linesprocessed++;
+			}
+			data++;
+		}
+
+		if ( data[0] == '*' && data[1] == '/' )
+		{
+			data+=2;
+		}
+		goto skipwhite;
+	}
+
+// handle quoted strings specially
+	bool isLstring = data[0] == 'L' && (data[1] == '\"' );
+	if ( isLstring )
+	{
+		com_token[len++] = (char)c;
+		return data+1;
+	}
+
+	if ( c == '\"' )
+	{
+		data++;
+		bool bEscapeSequence = false;
+		while (1)
+		{
+			Assert( len < 1024 );
+			c = *data++;
+			if ( (c=='\"' && !bEscapeSequence) || !c  && len < sizeof( com_token ) - 1 )
+			{
+				com_token[len] = 0;
+				return data;
+			}
+			bEscapeSequence = ( c == '\\' );
+			com_token[len] = (char)c;
+			len++;
+		}
+	}
+
+// parse single characters
+	if ( CC_IsBreakChar( (char)c ) )
+	{
+		Assert( len < 1024 );
+
+		com_token[len] = (char)c;
+		len++;
+		com_token[len] = 0;
+		return data+1;
+	}
+
+// parse a regular word
+	do
+	{
+		Assert( len < 1024 );
+
+		com_token[len] = (char)c;
+		data++;
+		len++;
+		c = *data;
+
+		if ( CC_IsBreakChar( (char)c ) )
+			break;
+	} while (c>32 && len < sizeof( com_token ) - 1);
+	
+	com_token[len] = 0;
+	return data;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Input  : *name - 
+//			*len - 
+// Output : unsigned char
+//-----------------------------------------------------------------------------
+unsigned char *COM_LoadFile( const char *name, int *len)
+{
+	FILE *fp;
+	fp = fopen( name, "rb" );
+	if ( !fp )
+	{
+		*len = 0;
+		return NULL;
+	}
+
+	fseek( fp, 0, SEEK_END );
+	*len = ftell( fp );
+	fseek( fp, 0, SEEK_SET );
+	
+	unsigned char *buffer = new unsigned char[ *len + 1 ];
+	fread( buffer, *len, 1, fp );
+	fclose( fp );
+	buffer[ *len ] = 0;
+
+	return buffer;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Input  : *buffer - 
+//-----------------------------------------------------------------------------
+void COM_FreeFile( unsigned char *buffer )
+{
+	delete[] buffer;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Input  : *dir - 
+// Output : Returns true on success, false on failure.
+//-----------------------------------------------------------------------------
+bool COM_DirectoryExists( const char *dir )
+{
+	if ( !_access( dir, 0 ) )
+		return true;
+
+	return false;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Input  : *input - 
+// Output : char
+//-----------------------------------------------------------------------------
+char *CC_ParseUntilEndOfLine( char *input )
+{
+	while (*input && *input != '\n')
+		input++;
+
+	return input;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Input  : *input - 
+//			*ch - 
+//			*breakchar - 
+// Output : char
+//-----------------------------------------------------------------------------
+char *CC_RawParseChar( char *input, const char *ch, char *breakchar )
+{
+	bool done = false;
+	int listlen = strlen( ch );
+
+	do
+	{
+		input = CC_ParseToken( input );
+		if ( strlen( com_token ) <= 0 )
+			break;
+
+		if ( strlen( com_token ) == 1 )
+		{
+			for ( int i = 0; i < listlen; i++ )
+			{
+				if ( com_token[ 0 ] == ch[ i ] )
+				{
+					*breakchar = ch [ i ];
+					done = true;
+					break;
+				}
+			}
+		}
+	} while ( !done );
+
+	return input;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Input  : *input - 
+//			*pairing - 
+// Output : char
+//-----------------------------------------------------------------------------
+char *CC_DiscardUntilMatchingCharIncludingNesting( char *input, const char *pairing )
+{
+	int nestcount = 1;
+
+	do
+	{
+		input = CC_ParseToken( input );
+		if ( strlen( com_token ) <= 0 )
+			break;
+
+		if ( strlen( com_token ) == 1 )
+		{
+			if ( com_token[ 0 ] == pairing[ 0 ] )
+			{
+				nestcount++;
+			}
+			else if ( com_token[ 0 ] == pairing[ 1 ] )
+			{
+				nestcount--;
+			}
+		}
+	} while ( nestcount != 0 );
+
+	return input;
+}
\ No newline at end of file
diff --git a/utils/mdlcheck/mdlcheck_util.h b/utils/mdlcheck/mdlcheck_util.h
new file mode 100644
index 0000000..da2f0d8
--- /dev/null
+++ b/utils/mdlcheck/mdlcheck_util.h
@@ -0,0 +1,31 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//=============================================================================//
+#ifndef CLASSCHECK_UTIL_H
+#define CLASSCHECK_UTIL_H
+#ifdef _WIN32
+#pragma once
+#endif
+
+
+void vprint( int depth, const char *fmt, ... );
+void vprint_queued( int depth, const char *fmt, ... );
+void dump_print_queue( void );
+void CC_UngetToken( void );
+char *CC_ParseToken(char *data);
+char *CC_DiscardUntilMatchingCharIncludingNesting( char *input, const char *pairing );
+char *CC_RawParseChar( char *input, const char *ch, char *breakchar );
+char *CC_ParseUntilEndOfLine( char *input );
+
+extern char com_token[1024];
+extern bool com_ignoreinlinecomment;
+extern int linesprocessed;
+
+unsigned char *COM_LoadFile( const char *name, int *len);
+void COM_FreeFile( unsigned char *buffer );
+bool COM_DirectoryExists( const char *dir );
+
+#endif // CLASSCHECK_UTIL_H
diff --git a/utils/mdlcheck/stdafx.cpp b/utils/mdlcheck/stdafx.cpp
new file mode 100644
index 0000000..1fdf9da
--- /dev/null
+++ b/utils/mdlcheck/stdafx.cpp
@@ -0,0 +1,15 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//
+//=============================================================================//
+// stdafx.cpp : source file that includes just the standard includes
+//	classcheck.pch will be the pre-compiled header
+//	stdafx.obj will contain the pre-compiled type information
+
+#include "stdafx.h"
+
+// TODO: reference any additional headers you need in STDAFX.H
+// and not in this file
diff --git a/utils/mdlcheck/stdafx.h b/utils/mdlcheck/stdafx.h
new file mode 100644
index 0000000..e0ae61a
--- /dev/null
+++ b/utils/mdlcheck/stdafx.h
@@ -0,0 +1,26 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//
+//=============================================================================//
+// stdafx.h : include file for standard system include files,
+//  or project specific include files that are used frequently, but
+//      are changed infrequently
+//
+
+#if !defined(AFX_STDAFX_H__50E4147E_A508_4D85_BF0A_BA26676063F0__INCLUDED_)
+#define AFX_STDAFX_H__50E4147E_A508_4D85_BF0A_BA26676063F0__INCLUDED_
+
+#if _MSC_VER > 1000
+#pragma once
+#endif // _MSC_VER > 1000
+
+
+// TODO: reference additional headers your program requires here
+
+//{{AFX_INSERT_LOCATION}}
+// Microsoft Visual C++ will insert additional declarations immediately before the previous line.
+
+#endif // !defined(AFX_STDAFX_H__50E4147E_A508_4D85_BF0A_BA26676063F0__INCLUDED_)