unsigned long TTFFontManager::read(FT_Stream stream,
unsigned long offset,
unsigned char* buffer,
unsigned long count )
{
DataStream* dstream = (DataStream*)stream->descriptor.pointer;
dstream->Seek(offset, GEM_STREAM_START);
return dstream->Read(buffer, count);
}
static int ghl_ogg_seek_func (void *datasource, ogg_int64_t offset, int whence)
{
DataStream* ds = reinterpret_cast<DataStream*>(datasource);
if (!ds) return 0;
FileSeekType fst;
if (whence==SEEK_SET) fst=F_SEEK_BEGIN;
else if (whence==SEEK_CUR) fst=F_SEEK_CURRENT;
else if (whence==SEEK_END) fst=F_SEEK_END;
else return 0;
return ds->Seek(static_cast<Int32>(offset),fst);
}