CubicDesign wrote: >> Never, ever, write a record to disk if it isn't declared as "packed." > > The speed is important in this piece of code!
You've actually measured, and the time difference between accessing packed and unpacked records is significant in your program? I doubt that. > So how can I unpack it after I load it from disk? Assign the fields from the on-disk version of your record to the in-memory version. You'll have two record declarations and two variables. > Should I load the packed version of CromaMX from disk then move it into > a non-packed array for speed? > How? Direct assignation won't work, System.Copy won't work also. The > only way will be to copy elements one by one in a for loop. Is this the > best way? The best and only way. > var > CromaMX = packed array of TSample; > CromaMXFast = array of TSample; The "packed" reserved word has no effect on arrays anymore. Arrays are always packed in Delphi. > begin > LoadFromDisk(CromaMX); > CromaMXFast:= CromaMX; <-- won't work > end; Assignment of dynamic arrays doesn't make a new copy anyway. -- Rob _______________________________________________ Delphi mailing list -> [email protected] http://www.elists.org/mailman/listinfo/delphi
