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The 'fiasco' subdirectory of the Netpbm source tree is primarily a copy
of the source distribution of the Fiasco package by Ullrich Hafner.
Bryan Henderson adapted fiasco-1.0 on July 6, 2000 to netpbm, and then
merged in all the updates from fiasco-1.3 on February 9, 2001.
The changes are:
- Uses Netpbm libraries for input and output of Netpbm format images.
- Works with maxvals other than 255 in Netpbm input images. This change
also makes a minor correction to the maxval 255 case. Where the Fiasco
package multiplies by 16 to convert from 8 bit to 12 bit intensity,
the correct factor is 4095/255.
- Does not issue warning when system configuration file not found.
The location of that file is a compile-time option in 'fiasco', but
fixed at /etc in Netpbm. The expectation is that Netpbm users will
never have a system configuration file.
- Does not fail if basis file small.fco is not found. The Fiasco code
already contained facilities for defaulting to a built-in version of
small.fco, but it was disabled by an early check for existence of
the basis file as an actual file. In Netpbm, that check for
existence is simply removed.
- Remove WINDOWS config.h configuration macro, which determined whether
files would be open with "b" flag (binary). Use "b" flag unconditionally.
- Rename internal "log2" function to "Log2" to avoid conflict with existing
"log2" macro or function. The original package has conditional compilation
to allow it to use the existing log2 when configured for a system that has
it. In Netpbm, we always use the private version.
- Compilation warnings fixed.
- 'bin' subdirectory moved to top level directory.
- man pages for programs moved from doc subdirectory to top level directory.
- man page of pnmpsnr created.
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