[brlcad-tracker] [ brlcad-Patches-3528693 ] introduce off-by-val to bench/pixcmp.c

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Patches item #3528693, was opened at 2012-05-21 13:25
Message generated for change (Tracker Item Submitted) made by stattrav
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Category: Benchmark & Performance
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Suryajith Chillara (stattrav)
Assigned to: Nobody/Anonymous (nobody)
Summary: introduce off-by-val to bench/pixcmp.c

Initial Comment:
My patch to bench/pixcmp.c which adds the option of adding the parameter so that one could check the number of pixels which are "off by a certain value". The default value is still 1. I've tested for a few cases and the benchmark run went through. 

Usage is as follows:
brlcad-build → bin/pixcmp -d4 ../brlcad/pix/moss.pix ../brlcad/pix/moss_new.pix
pixcmp pixels: 262140 matching, 4 off by 4, 0 off by many

brlcad-build → bin/pixcmp -d2 ../brlcad/pix/moss.pix ../brlcad/pix/moss.pix
pixcmp pixels: 262144 matching, 0 off by 2, 0 off by many

brlcad-build → bin/pixcmp -d2 ../brlcad/pix/moss.pix ../brlcad/pix/moss_new.pix
pixcmp pixels: 262140 matching, 4 off by 2, 0 off by many

brlcad-build → bin/pixcmp -d1 ../brlcad/pix/moss.pix ../brlcad/pix/moss_new.pix
pixcmp pixels: 262140 matching, 2 off by 1, 2 off by many

brlcad-build → bin/pixcmp ../brlcad/pix/moss.pix ../brlcad/pix/moss_new.pix
pixcmp pixels: 262140 matching, 2 off by 1, 2 off by many 

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