2004.11.23 23:16 "Re: [Tiff] compatibility patch", by Bob Friesenhahn

> > But what a problem with the standard tif_win32.c? Your new
> > tif_win32crt.c will be not portable anyway and specific for Windows.

As stated in the patch, the problem with the standard tif_win32.c is that I can't make the following call from a windows application:

  fp = fopen( "foo.tif", "rb")
  TIFFFdOpen(fileno(fp),"r");

This matters because my application only has a file pointer (FILE *fp) available when it calls libtiff. This is a very

It is worth mentioning that file pointers (FILE *fp) are only useful for accessing up to 2GB of data with 32-bit Windows. TIFF files can be as large as 4GB, and the future "Big TIFF" will allow terrabytes.

Due to the use of a common kernel DLL and the need for application compatibility across Windows versions, Windows does not offer a large-file compilation option like Unix does.

Bob

======================================
Bob Friesenhahn
bfriesen@simple.dallas.tx.us
http://www.simplesystems.org/users/bfriesen