FWadLump::FWadLump(int lumpnum, FResourceLump *lump)
: FileReader()
{
FileReader *f = lump->GetReader();
if (f != NULL && f->GetFile() != NULL)
{
// Uncompressed lump in a file. For this we will have to open a new FILE, since we need it for streaming
int fileno = Wads.GetLumpFile(lumpnum);
const char *filename = Wads.GetWadFullName(fileno);
File = openfd(filename);
if (File != NULL)
{
Length = lump->LumpSize;
StartPos = FilePos = lump->GetFileOffset();
Lump = NULL;
CloseOnDestruct = true;
Seek(0, SEEK_SET);
return;
}
}
File = NULL;
Length = lump->LumpSize;
StartPos = FilePos = 0;
Lump = lump;
Lump->CacheLump();
}
FWadLump::FWadLump(FResourceLump *lump, bool alwayscache)
: FileReader()
{
FileReader *f = lump->GetReader();
if (f != NULL && f->GetFile() != NULL && !alwayscache)
{
// Uncompressed lump in a file
File = f->GetFile();
Length = lump->LumpSize;
StartPos = FilePos = lump->GetFileOffset();
Lump = NULL;
}
else
{
File = NULL;
Length = lump->LumpSize;
StartPos = FilePos = 0;
Lump = lump;
Lump->CacheLump();
}
}
bool FWadCollection::IsUncompressedFile(int lump) const
{
if ((unsigned)lump >= (unsigned)NumLumps)
{
I_Error ("IsUncompressedFile: %u >= NumLumps",lump);
}
FResourceLump *l = LumpInfo[lump].lump;
FileReader *f = l->GetReader();
// We can access the file only if we get the FILE pointer from the FileReader here.
// Any other case means it won't work.
return (f != NULL && f->GetFile() != NULL);
}
