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 -d "testout" or mkdir "testout";
9 Imager::init("log"=>'testout/t67convert.log');
11 my $imbase = Imager::ImgRaw::new(200,300,3);
13 # first a basic test, make sure the basic things happen ok
14 # make a 1 channel image from the above (black) image
15 # but with 1 as the 'extra' value
18 my $im_white = i_convert($imbase, [ [ 0, 0, 0, 1 ] ]);
19 skip("convert to white failed", 3)
20 unless ok($im_white, "convert to white");
22 my ($w, $h, $ch) = i_img_info($im_white);
24 # the output image should now have one channel
25 is($ch, 1, "one channel image now");
26 # should have the same width and height
27 ok($w == 200 && $h == 300, "check converted size is the same");
29 # should be a white image now, let's check
30 my $c = Imager::i_get_pixel($im_white, 20, 20);
33 is($c[0], 255, "check image is white");
36 # test the highlevel interface
37 # currently this requires visual inspection of the output files
41 skip("could not load scale.ppm", 3)
42 unless $im->read(file=>'testimg/scale.ppm');
43 my $out = $im->convert(preset=>'gray');
44 ok($out, "convert preset gray");
45 ok($out->write(file=>'testout/t67_gray.ppm', type=>'pnm'),
47 $out = $im->convert(preset=>'blue');
48 ok($out, "convert preset blue");
50 ok($out->write(file=>'testout/t67_blue.ppm', type=>'pnm'),
54 # test against 16-bit/sample images
58 my $imbase16 = Imager::i_img_16_new(200, 200, 3);
60 my $im16targ = i_convert($imbase16, [ [ 0, 0, 0, 1 ],
63 ok($im16targ, "convert 16/bit sample image")
64 or skip("could not convert 16-bit image", 2);
66 # image should still be 16-bit
67 is(Imager::i_img_bits($im16targ), 16, "Image still 16-bit/sample");
69 # make sure that it's roughly red
70 test_colorf_gpix($im16targ, 0, 0, NCF(1, 0, 0), 0.001, "image roughly red");
74 my $imbase16 = Imager->new(xsize => 10, ysize => 10, bits => 16);
75 ok($imbase16->setpixel
76 (x => 5, y => 2, color => Imager::Color::Float->new(0.1, 0.2, 0.3)),
77 "set a sample pixel");
78 my $c1 = $imbase16->getpixel(x => 5, y => 2, type => "float");
79 is_fcolor3($c1, 0.1, 0.2, 0.3, "check it was set")
80 or print "#", join(",", $c1->rgba), "\n";
82 my $targ16 = $imbase16->convert(matrix => [ [ 0.05, 0.15, 0.01, 0.5 ] ]);
83 ok($targ16, "convert another 16/bit sample image")
84 or skip("could not convert", 3);
85 is($targ16->getchannels, 1, "convert should be 1 channel");
86 is($targ16->bits, 16, "and 16-bits");
87 my $c = $targ16->getpixel(x => 5, y => 2, type => "float");
88 is_fcolor1($c, 0.538, 1/32768, "check grey value");
92 # test against palette based images
93 my $impal = Imager::i_img_pal_new(200, 300, 3, 256);
94 my $black = NC(0, 0, 0);
95 my $blackindex = Imager::i_addcolors($impal, $black);
96 ok($blackindex, "add black to paletted");
98 Imager::i_ppal($impal, 0, $y, ($blackindex) x 200);
103 my $impalout = i_convert($impal, [ [ 0, 0, 0, 0 ],
106 skip("could not convert paletted", 3)
107 unless ok($impalout, "convert paletted");
108 is(Imager::i_img_type($impalout), 1, "image still paletted");
109 is(Imager::i_colorcount($impalout), 1, "still only one colour");
110 my $c = Imager::i_getcolors($impalout, $blackindex);
111 ok($c, "get color from palette");
114 ok($ch[0] == 0 && $ch[1] == 255 && $ch[2] == 0,
115 "colour is as expected");
118 { # http://rt.cpan.org/NoAuth/Bug.html?id=9672
119 # methods that return a new image should warn in void context
121 local $SIG{__WARN__} =
124 my $printed = $warning;
126 $printed =~ s/\n/\n\#/g;
127 print "# ",$printed, "\n";
129 my $img = Imager->new(xsize=>10, ysize=>10);
130 $img->convert(preset=>"grey");
131 cmp_ok($warning, '=~', 'void', "correct warning");
132 cmp_ok($warning, '=~', 't67convert\\.t', "correct file");
135 { # http://rt.cpan.org/NoAuth/Bug.html?id=28492
136 # convert() doesn't preserve image sample size
137 my $im = Imager->new(xsize => 20, ysize => 20, channels => 3,
139 is($im->bits, 'double', 'check source bits');
140 my $conv = $im->convert(preset => 'grey');
141 is($conv->bits, 'double', 'make sure result has extra bits');