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filesystem: wad: adapt to new interface

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This commit is contained in:
Alibek Omarov 2023-05-27 20:47:49 +03:00
parent e791d44dd8
commit d0d09c878f
1 changed files with 48 additions and 70 deletions
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118
filesystem/wad.c
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@ -583,6 +583,53 @@ static void FS_Search_WAD( searchpath_t *search, stringlist_t *list, const char
} }
} }
/*
===========
W_ReadLump
reading lump into temp buffer
===========
*/
static byte *W_ReadLump( searchpath_t *search, const char *path, int pack_ind, fs_offset_t *lumpsizeptr )
{
const wfile_t *wad = search->wad;
const dlumpinfo_t *lump = &wad->lumps[pack_ind];
size_t oldpos, size = 0;
byte *buf;
// assume error
if( lumpsizeptr ) *lumpsizeptr = 0;
// no wads loaded
if( !wad || !lump ) return NULL;
oldpos = FS_Tell( wad->handle ); // don't forget restore original position
if( FS_Seek( wad->handle, lump->filepos, SEEK_SET ) == -1 )
{
Con_Reportf( S_ERROR "W_ReadLump: %s is corrupted\n", lump->name );
FS_Seek( wad->handle, oldpos, SEEK_SET );
return NULL;
}
buf = (byte *)Mem_Malloc( wad->mempool, lump->disksize );
size = FS_Read( wad->handle, buf, lump->disksize );
if( size < lump->disksize )
{
Con_Reportf( S_WARN "W_ReadLump: %s is probably corrupted\n", lump->name );
FS_Seek( wad->handle, oldpos, SEEK_SET );
Mem_Free( buf );
return NULL;
}
if( lumpsizeptr ) *lumpsizeptr = lump->disksize;
FS_Seek( wad->handle, oldpos, SEEK_SET );
return buf;
}
/* /*
==================== ====================
FS_AddWad_Fullpath FS_AddWad_Fullpath
@ -625,6 +672,7 @@ qboolean FS_AddWad_Fullpath( const char *wadfile, qboolean *already_loaded, int
search->pfnFileTime = FS_FileTime_WAD; search->pfnFileTime = FS_FileTime_WAD;
search->pfnFindFile = FS_FindFile_WAD; search->pfnFindFile = FS_FindFile_WAD;
search->pfnSearch = FS_Search_WAD; search->pfnSearch = FS_Search_WAD;
search->pfnLoadFile = W_ReadLump;
fs_searchpaths = search; fs_searchpaths = search;
@ -636,73 +684,3 @@ qboolean FS_AddWad_Fullpath( const char *wadfile, qboolean *already_loaded, int
Con_Reportf( S_ERROR "FS_AddWad_Fullpath: unable to load wad \"%s\"\n", wadfile ); Con_Reportf( S_ERROR "FS_AddWad_Fullpath: unable to load wad \"%s\"\n", wadfile );
return false; return false;
} }
/*
=============================================================================
WADSYSTEM PRIVATE ROUTINES
=============================================================================
*/
/*
===========
W_ReadLump
reading lump into temp buffer
===========
*/
static byte *W_ReadLump( wfile_t *wad, dlumpinfo_t *lump, fs_offset_t *lumpsizeptr )
{
size_t oldpos, size = 0;
byte *buf;
// assume error
if( lumpsizeptr ) *lumpsizeptr = 0;
// no wads loaded
if( !wad || !lump ) return NULL;
oldpos = FS_Tell( wad->handle ); // don't forget restore original position
if( FS_Seek( wad->handle, lump->filepos, SEEK_SET ) == -1 )
{
Con_Reportf( S_ERROR "W_ReadLump: %s is corrupted\n", lump->name );
FS_Seek( wad->handle, oldpos, SEEK_SET );
return NULL;
}
buf = (byte *)Mem_Malloc( wad->mempool, lump->disksize );
size = FS_Read( wad->handle, buf, lump->disksize );
if( size < lump->disksize )
{
Con_Reportf( S_WARN "W_ReadLump: %s is probably corrupted\n", lump->name );
FS_Seek( wad->handle, oldpos, SEEK_SET );
Mem_Free( buf );
return NULL;
}
if( lumpsizeptr ) *lumpsizeptr = lump->disksize;
FS_Seek( wad->handle, oldpos, SEEK_SET );
return buf;
}
/*
===========
FS_LoadWADFile
loading lump into the tmp buffer
===========
*/
byte *FS_LoadWADFile( const char *path, fs_offset_t *lumpsizeptr, qboolean gamedironly )
{
searchpath_t *search;
int index;
search = FS_FindFile( path, &index, NULL, 0, gamedironly );
if( search && search->type == SEARCHPATH_WAD )
return W_ReadLump( search->wad, &search->wad->lumps[index], lumpsizeptr );
return NULL;
}