3 use Imager qw(:all :handy);
4 use Test::More tests => 27;
5 use Imager::Test qw(test_colorf_gpix is_fcolor1 is_fcolor3);
7 Imager::init("log"=>'testout/t67convert.log');
9 my $imbase = Imager::ImgRaw::new(200,300,3);
11 # first a basic test, make sure the basic things happen ok
12 # make a 1 channel image from the above (black) image
13 # but with 1 as the 'extra' value
16 my $im_white = i_convert($imbase, [ [ 0, 0, 0, 1 ] ]);
17 skip("convert to white failed", 3)
18 unless ok($im_white, "convert to white");
20 my ($w, $h, $ch) = i_img_info($im_white);
22 # the output image should now have one channel
23 is($ch, 1, "one channel image now");
24 # should have the same width and height
25 ok($w == 200 && $h == 300, "check converted size is the same");
27 # should be a white image now, let's check
28 my $c = Imager::i_get_pixel($im_white, 20, 20);
31 is($c[0], 255, "check image is white");
34 # test the highlevel interface
35 # currently this requires visual inspection of the output files
39 skip("could not load scale.ppm", 3)
40 unless $im->read(file=>'testimg/scale.ppm');
41 my $out = $im->convert(preset=>'gray');
42 ok($out, "convert preset gray");
43 ok($out->write(file=>'testout/t67_gray.ppm', type=>'pnm'),
45 $out = $im->convert(preset=>'blue');
46 ok($out, "convert preset blue");
48 ok($out->write(file=>'testout/t67_blue.ppm', type=>'pnm'),
52 # test against 16-bit/sample images
56 my $imbase16 = Imager::i_img_16_new(200, 200, 3);
58 my $im16targ = i_convert($imbase16, [ [ 0, 0, 0, 1 ],
61 ok($im16targ, "convert 16/bit sample image")
62 or skip("could not convert 16-bit image", 2);
64 # image should still be 16-bit
65 is(Imager::i_img_bits($im16targ), 16, "Image still 16-bit/sample");
67 # make sure that it's roughly red
68 test_colorf_gpix($im16targ, 0, 0, NCF(1, 0, 0), 0.001, "image roughly red");
72 my $imbase16 = Imager->new(xsize => 10, ysize => 10, bits => 16);
73 ok($imbase16->setpixel
74 (x => 5, y => 2, color => Imager::Color::Float->new(0.1, 0.2, 0.3)),
75 "set a sample pixel");
76 my $c1 = $imbase16->getpixel(x => 5, y => 2, type => "float");
77 is_fcolor3($c1, 0.1, 0.2, 0.3, "check it was set")
78 or print "#", join(",", $c1->rgba), "\n";
80 my $targ16 = $imbase16->convert(matrix => [ [ 0.05, 0.15, 0.01, 0.5 ] ]);
81 ok($targ16, "convert another 16/bit sample image")
82 or skip("could not convert", 3);
83 is($targ16->getchannels, 1, "convert should be 1 channel");
84 is($targ16->bits, 16, "and 16-bits");
85 my $c = $targ16->getpixel(x => 5, y => 2, type => "float");
86 is_fcolor1($c, 0.538, 1/32768, "check grey value");
90 # test against palette based images
91 my $impal = Imager::i_img_pal_new(200, 300, 3, 256);
92 my $black = NC(0, 0, 0);
93 my $blackindex = Imager::i_addcolors($impal, $black);
94 ok($blackindex, "add black to paletted");
96 Imager::i_ppal($impal, 0, $y, ($blackindex) x 200);
101 my $impalout = i_convert($impal, [ [ 0, 0, 0, 0 ],
104 skip("could not convert paletted", 3)
105 unless ok($impalout, "convert paletted");
106 is(Imager::i_img_type($impalout), 1, "image still paletted");
107 is(Imager::i_colorcount($impalout), 1, "still only one colour");
108 my $c = Imager::i_getcolors($impalout, $blackindex);
109 ok($c, "get color from palette");
112 ok($ch[0] == 0 && $ch[1] == 255 && $ch[2] == 0,
113 "colour is as expected");
116 { # http://rt.cpan.org/NoAuth/Bug.html?id=9672
117 # methods that return a new image should warn in void context
119 local $SIG{__WARN__} =
122 my $printed = $warning;
124 $printed =~ s/\n/\n\#/g;
125 print "# ",$printed, "\n";
127 my $img = Imager->new(xsize=>10, ysize=>10);
128 $img->convert(preset=>"grey");
129 cmp_ok($warning, '=~', 'void', "correct warning");
130 cmp_ok($warning, '=~', 't67convert\\.t', "correct file");
133 { # http://rt.cpan.org/NoAuth/Bug.html?id=28492
134 # convert() doesn't preserve image sample size
135 my $im = Imager->new(xsize => 20, ysize => 20, channels => 3,
137 is($im->bits, 'double', 'check source bits');
138 my $conv = $im->convert(preset => 'grey');
139 is($conv->bits, 'double', 'make sure result has extra bits');