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78 lines
1.6 KiB
78 lines
1.6 KiB
5 years ago
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//========= Copyright 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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#ifndef CAPTIONCOMPILER_H
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#define CAPTIONCOMPILER_H
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#ifdef _WIN32
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#pragma once
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#endif
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#include "datamap.h"
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#include "checksum_crc.h"
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#define MAX_BLOCK_BITS 13
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#define MAX_BLOCK_SIZE (1<<MAX_BLOCK_BITS )
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#define COMPILED_CAPTION_FILEID MAKEID( 'V', 'C', 'C', 'D' )
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#define COMPILED_CAPTION_VERSION 1
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#pragma pack(1)
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struct CompiledCaptionHeader_t
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{
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DECLARE_BYTESWAP_DATADESC()
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int magic;
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int version;
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int numblocks;
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int blocksize;
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int directorysize;
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int dataoffset;
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};
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struct CaptionLookup_t
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{
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DECLARE_BYTESWAP_DATADESC()
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unsigned int hash;
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int blockNum;
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unsigned short offset;
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unsigned short length;
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void SetHash( char const *string )
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{
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int len = Q_strlen( string );
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char *tempstr = (char *)_alloca( len + 1 );
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Q_strncpy( tempstr, string, len + 1 );
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Q_strlower( tempstr );
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CRC32_t temp;
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CRC32_Init( &temp );
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CRC32_ProcessBuffer( &temp, tempstr, len );
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CRC32_Final( &temp );
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hash = ( unsigned int )temp;
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}
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};
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#pragma pack()
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class CCaptionLookupLess
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{
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public:
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bool Less( const CaptionLookup_t& lhs, const CaptionLookup_t& rhs, void *pContext )
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{
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return lhs.hash < rhs.hash;
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}
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};
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struct CaptionBlock_t
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{
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byte data[ MAX_BLOCK_SIZE ];
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};
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// For swapping compiled caption files
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bool SwapClosecaptionFile( void *pData );
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int UpdateOrCreateCaptionFile( const char *pSourceName, char *pTargetName, int targetLen, bool bForce = false );
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#endif // CAPTIONCOMPILER_H
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