3 use Imager qw(:all :handy);
4 use Test::More tests=>21;
6 Imager::init("log"=>'testout/t67convert.log');
8 my $imbase = Imager::ImgRaw::new(200,300,3);
10 # first a basic test, make sure the basic things happen ok
11 # make a 1 channel image from the above (black) image
12 # but with 1 as the 'extra' value
15 my $im_white = i_convert($imbase, [ [ 0, 0, 0, 1 ] ]);
16 skip("convert to white failed", 3)
17 unless ok($im_white, "convert to white");
19 my ($w, $h, $ch) = i_img_info($im_white);
21 # the output image should now have one channel
22 is($ch, 1, "one channel image now");
23 # should have the same width and height
24 ok($w == 200 && $h == 300, "check converted size is the same");
26 # should be a white image now, let's check
27 my $c = Imager::i_get_pixel($im_white, 20, 20);
30 is($c[0], 255, "check image is white");
33 # test the highlevel interface
34 # currently this requires visual inspection of the output files
38 skip("could not load scale.ppm", 3)
39 unless $im->read(file=>'testimg/scale.ppm');
40 my $out = $im->convert(preset=>'gray');
41 ok($out, "convert preset gray");
42 ok($out->write(file=>'testout/t67_gray.ppm', type=>'pnm'),
44 $out = $im->convert(preset=>'blue');
45 ok($out, "convert preset blue");
47 ok($out->write(file=>'testout/t67_blue.ppm', type=>'pnm'),
51 # test against 16-bit/sample images
54 my $imbase16 = Imager::i_img_16_new(200, 200, 3);
56 my $im16targ = i_convert($imbase16, [ [ 0, 0, 0, 1 ],
59 skip("could not convert 16-bit image", 2)
60 unless ok($im16targ, "convert 16/bit sample image");
61 # image should still be 16-bit
62 is(Imager::i_img_bits($im16targ), 16, "Image still 16-bit/sample");
63 # make sure that it's roughly red
64 my $c = Imager::i_gpixf($im16targ, 0, 0);
66 ok(abs($ch[0] - 1) <= 0.0001 && abs($ch[1]) <= 0.0001 && abs($ch[2]) <= 0.0001,
71 # test against palette based images
72 my $impal = Imager::i_img_pal_new(200, 300, 3, 256);
73 my $black = NC(0, 0, 0);
74 my $blackindex = Imager::i_addcolors($impal, $black);
75 ok($blackindex, "add black to paletted");
77 Imager::i_ppal($impal, 0, $y, ($blackindex) x 200);
82 my $impalout = i_convert($impal, [ [ 0, 0, 0, 0 ],
85 skip("could not convert paletted", 3)
86 unless ok($impalout, "convert paletted");
87 is(Imager::i_img_type($impalout), 1, "image still paletted");
88 is(Imager::i_colorcount($impalout), 1, "still only one colour");
89 my $c = Imager::i_getcolors($impalout, $blackindex);
90 ok($c, "get color from palette");
93 ok($ch[0] == 0 && $ch[1] == 255 && $ch[2] == 0,
94 "colour is as expected");
97 { # http://rt.cpan.org/NoAuth/Bug.html?id=9672
99 local $SIG{__WARN__} =
102 my $printed = $warning;
104 $printed =~ s/\n/\n\#/g;
105 print "# ",$printed, "\n";
107 my $img = Imager->new(xsize=>10, ysize=>10);
108 $img->convert(preset=>"grey");
109 cmp_ok($warning, '=~', 'void', "correct warning");
110 cmp_ok($warning, '=~', 't67convert\\.t', "correct file");
113 { # http://rt.cpan.org/NoAuth/Bug.html?id=28492
114 my $im = Imager->new(xsize => 20, ysize => 20, channels => 3,
116 is($im->bits, 'double', 'check source bits');
117 my $conv = $im->convert(preset => 'grey');
118 is($conv->bits, 'double', 'make sure result has extra bits');