# we need tests with index shuffling once vaffines are fixed
sub ok {
my $no = shift ;
my $result = shift ;
print "not " unless $result ;
print "ok $no\n" ;
}
sub approx {
my($a,$b,$mdiff) = @_;
$mdiff = 0.01 unless defined($mdiff);
$c = abs($a-$b);
$d = max($c);
$d < $mdiff;
}
sub rpic_unlink {
my $file = shift;
my $pdl = rpic($file);
unlink $file;
return $pdl;
}
use PDL;
use PDL::IO::Pic;
use PDL::Lib::Util;
use PDL::Dbg;
# private fix
$ENV{PATH} .= ":$ENV{HOME}/perl/netpbm/bin" if `hostname` =~ /mbcsg1/;
$PDL::debug = 0;
$iform = 'PNMRAW'; # change to PNMASCII to use ASCII PNM intermediate
# output format
# [FORMAT, extension, ushort-divisor,
# only RGB/no RGB/any (1/-1/0), mxdiff]
# no test of PCX format because seems to be severely brain damaged
@formats = (['PNM','pnm',1,0,0.01],['GIF','gif',256,0,1.01],
['TIFF','tif',1,0,0.01],['Sun Raster','rast',256,0,1.01],
['IFF','iff',256,1,0.01],['SGI','rgb',1,0,0.01]);
$ntests = 3 * @formats - 1 ; # -1 due to TIFF converter
print("1..$ntests\n");
$im1 = pdl([[0,65535,0], [256,256,256], [65535,256,65535]])->ushort;
$im2 = byte($im1/256);
# make the resulting file at least 12 byte long
# otherwise we run into a problem when reading the magic (Fix!)
$im3 = byte [[0,0,255,255,12,13],[1,4,5,6,11,124],
[100,0,0,0,10,10],[2,1,0,1,0,14],[2,1,0,1,0,14],
[2,1,0,1,0,14]];
if ($PDL::debug) {
print $im1;
$im1->px;
print $im2;
$im2->px;
print $im3>0;
$im3->px;
}
# for some reason the pnmtotiff converter coredumps when trying
# to do the conversion for the ushort data, haven't yet tried to
# figure out why
$n = 1;
foreach $form (@formats) {
print " ** testing $form->[0] format **\n";
wpic ($im1,"tushort.$form->[1]",{IFORM => "$iform"})
unless $form->[0] eq 'TIFF';
wpic ($im2,"tbyte.$form->[1]",{IFORM => "$iform"});
wpic ($im3,"tbin.$form->[1]",{COLOR => 'bw', IFORM => "$iform"});
$in1 = rpic_unlink("tushort.$form->[1]") unless $form->[0] eq 'TIFF';
$in2 = rpic_unlink("tbyte.$form->[1]");
$in3 = rpic_unlink("tbin.$form->[1]");
if ($form->[0] ne 'TIFF') {
$scale = ($form->[3] ? $im1->dummy(0,3) : $im1);
$comp = $scale / $form->[2];
ok($n++,approx($comp,$in1,$form->[4]));
}
$comp = ($form->[3] ? $im2->dummy(0,3) : $im2);
ok($n++,approx($comp,$in2));
$comp = ($form->[3] ? ($im3->dummy(0,3)>0)*255 : ($im3 > 0));
$comp = $comp->ushort*65535 if $form->[0] eq 'SGI'; # yet another format quirk
ok($n++,approx($comp,$in3));
if ($PDL::debug) {
print $in1->px unless $form->[0] eq 'TIFF';
print $in2->px;
print $in3->px;
}
}