1 files changed, 77 insertions, 0 deletions
diff --git a/public/captioncompiler.h b/public/captioncompiler.h
new file mode 100644
index 0000000..1b723dc
--- /dev/null
+++ b/public/captioncompiler.h
@@ -0,0 +1,77 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+//=============================================================================
+
+#ifndef CAPTIONCOMPILER_H
+#define CAPTIONCOMPILER_H
+#ifdef _WIN32
+#pragma once
+#endif
+
+#include "datamap.h"
+#include "checksum_crc.h"
+
+#define MAX_BLOCK_BITS	13
+
+#define MAX_BLOCK_SIZE (1<<MAX_BLOCK_BITS )
+
+#define COMPILED_CAPTION_FILEID			MAKEID( 'V', 'C', 'C', 'D' )
+#define COMPILED_CAPTION_VERSION		1
+
+#pragma pack(1)
+struct CompiledCaptionHeader_t
+{
+	DECLARE_BYTESWAP_DATADESC()
+	int				magic;
+	int				version;
+	int				numblocks;
+	int				blocksize;
+	int				directorysize;
+	int				dataoffset;
+};
+
+struct CaptionLookup_t
+{
+	DECLARE_BYTESWAP_DATADESC()
+	unsigned int	hash;
+	int				blockNum;
+	unsigned short	offset;
+	unsigned short	length;
+
+	void SetHash( char const *string )
+	{
+		int len = Q_strlen( string );
+		char *tempstr = (char *)_alloca( len + 1 );
+		Q_strncpy( tempstr, string, len + 1 );
+		Q_strlower( tempstr );
+		CRC32_t temp;
+		CRC32_Init( &temp );
+		CRC32_ProcessBuffer( &temp, tempstr, len );
+		CRC32_Final( &temp );
+
+		hash = ( unsigned int )temp;
+	}
+};
+#pragma pack()
+
+class CCaptionLookupLess
+{
+public:
+	bool	Less( const CaptionLookup_t& lhs, const CaptionLookup_t& rhs, void *pContext )
+	{
+		return lhs.hash < rhs.hash;
+	}
+};
+
+struct CaptionBlock_t
+{
+	byte	data[ MAX_BLOCK_SIZE ];
+};
+
+// For swapping compiled caption files
+bool	SwapClosecaptionFile( void *pData );
+int		UpdateOrCreateCaptionFile( const char *pSourceName, char *pTargetName, int targetLen, bool bForce = false );
+
+#endif // CAPTIONCOMPILER_H