Modified source engine (2017) developed by valve and leaked in 2020. Not for commercial purporses
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5 years ago
//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose: Swap a compiled caption file.
//
// $NoKeywords: $
//=============================================================================//
#include "utlbuffer.h"
#include "byteswap.h"
#include "filesystem.h"
#include "tier2/fileutils.h"
#include "captioncompiler.h"
// memdbgon must be the last include file in a .cpp file!!!
#include "tier0/memdbgon.h"
BEGIN_BYTESWAP_DATADESC( CompiledCaptionHeader_t )
DEFINE_FIELD( magic, FIELD_INTEGER ),
DEFINE_FIELD( version, FIELD_INTEGER ),
DEFINE_FIELD( numblocks, FIELD_INTEGER ),
DEFINE_FIELD( blocksize, FIELD_INTEGER ),
DEFINE_FIELD( directorysize, FIELD_INTEGER ),
DEFINE_FIELD( dataoffset, FIELD_INTEGER ),
END_BYTESWAP_DATADESC()
BEGIN_BYTESWAP_DATADESC( CaptionLookup_t )
DEFINE_FIELD( hash, FIELD_INTEGER ),
DEFINE_FIELD( blockNum, FIELD_INTEGER ),
DEFINE_FIELD( offset, FIELD_SHORT ),
DEFINE_FIELD( length, FIELD_SHORT ),
END_BYTESWAP_DATADESC()
//-----------------------------------------------------------------------------
// Swap a compiled closecaption file
//-----------------------------------------------------------------------------
bool SwapClosecaptionFile( void *pData )
{
CByteswap swap;
swap.ActivateByteSwapping( true );
CompiledCaptionHeader_t *pHdr = (CompiledCaptionHeader_t*)pData;
if ( IsX360() )
{
// pre-swap file header
swap.SwapFieldsToTargetEndian( pHdr );
}
if ( pHdr->magic != COMPILED_CAPTION_FILEID || pHdr->version != COMPILED_CAPTION_VERSION )
{
// bad data
return false;
}
// lookup headers
pData = (byte*)pData + sizeof(CompiledCaptionHeader_t);
swap.SwapFieldsToTargetEndian( (CaptionLookup_t*)pData, pHdr->directorysize );
// unicode data
pData = (byte*)pHdr + pHdr->dataoffset;
swap.SwapBufferToTargetEndian( (wchar_t*)pData, (wchar_t*)pData, pHdr->numblocks * pHdr->blocksize / sizeof(wchar_t) );
if ( IsPC() )
{
// post-swap file header
swap.SwapFieldsToTargetEndian( pHdr );
}
return true;
}
#if defined( CLIENT_DLL )
//-----------------------------------------------------------------------------
// Callback for UpdateOrCreate - generates .360 file
//-----------------------------------------------------------------------------
static bool CaptionCreateCallback( const char *pSourceName, const char *pTargetName, const char *pPathID, void *pExtraData )
{
// Generate the file
CUtlBuffer buf;
bool bOk = g_pFullFileSystem->ReadFile( pSourceName, pPathID, buf );
if ( bOk )
{
bOk = SwapClosecaptionFile( buf.Base() );
if ( bOk )
{
bOk = g_pFullFileSystem->WriteFile( pTargetName, pPathID, buf );
}
else
{
Warning( "Failed to create %s\n", pTargetName );
}
}
return bOk;
}
//-----------------------------------------------------------------------------
// Calls utility function UpdateOrCreate
//-----------------------------------------------------------------------------
int UpdateOrCreateCaptionFile( const char *pSourceName, char *pTargetName, int maxLen, bool bForce )
{
return ::UpdateOrCreate( pSourceName, pTargetName, maxLen, "GAME", CaptionCreateCallback, bForce );
}
#endif