3 use Test::More tests => 83;
5 use Imager::Test qw(is_color3 is_image is_imaged test_image_double test_image isnt_image);
9 -d "testout" or mkdir "testout";
11 Imager::init('log'=>'testout/t64copyflip.log');
13 my $img=Imager->new() or die "unable to create image object\n";
15 $img->open(file=>'testimg/scale.ppm',type=>'pnm');
16 my $nimg = $img->copy();
17 ok($nimg, "copy returned something");
19 # test if ->copy() works
21 my $diff = Imager::i_img_diff($img->{IMG}, $nimg->{IMG});
22 is_image($img, $nimg, "copy matches source");
24 # test if ->flip(dir=>'h')->flip(dir=>'h') doesn't alter the image
25 $nimg->flip(dir=>"h")->flip(dir=>"h");
26 is_image($nimg, $img, "double horiz flipped matches original");
28 # test if ->flip(dir=>'v')->flip(dir=>'v') doesn't alter the image
29 $nimg->flip(dir=>"v")->flip(dir=>"v");
30 is_image($nimg, $img, "double vertically flipped image matches original");
33 # test if ->flip(dir=>'h')->flip(dir=>'v') is same as ->flip(dir=>'hv')
34 $nimg->flip(dir=>"v")->flip(dir=>"h")->flip(dir=>"hv");;
35 is_image($img, $nimg, "check flip with hv matches flip v then flip h");
38 my $imsrc = test_image_double;
39 my $imcp = $imsrc->copy;
40 is_imaged($imsrc, $imcp, "copy double image");
41 $imcp->flip(dir=>"v")->flip(dir=>"v");
42 is_imaged($imsrc, $imcp, "flip v twice");
43 $imcp->flip(dir=>"h")->flip(dir=>"h");
44 is_imaged($imsrc, $imcp, "flip h twice");
45 $imcp->flip(dir=>"h")->flip(dir=>"v")->flip(dir=>"hv");
46 is_imaged($imsrc, $imcp, "flip h,v,hv twice");
50 my $impal = test_image()->to_paletted;
51 my $imcp = $impal->copy;
52 is($impal->type, "paletted", "check paletted test image is");
53 is($imcp->type, "paletted", "check copy test image is paletted");
54 ok($impal->flip(dir => "h"), "flip paletted h");
55 isnt_image($impal, $imcp, "check it changed");
56 ok($impal->flip(dir => "v"), "flip paletted v");
57 ok($impal->flip(dir => "hv"), "flip paletted hv");
58 is_image($impal, $imcp, "should be back to original image");
59 is($impal->type, "paletted", "and still paletted");
62 rot_test($img, 90, 4);
63 rot_test($img, 180, 2);
64 rot_test($img, 270, 4);
67 my $pimg = $img->to_paletted();
68 rot_test($pimg, 90, 4);
69 rot_test($pimg, 180, 2);
70 rot_test($pimg, 270, 4);
71 rot_test($pimg, 0, 1);
73 my $timg = $img->rotate(right=>90)->rotate(right=>270);
74 is(Imager::i_img_diff($img->{IMG}, $timg->{IMG}), 0,
75 "check rotate 90 then 270 matches original");
76 $timg = $img->rotate(right=>90)->rotate(right=>180)->rotate(right=>90);
77 is(Imager::i_img_diff($img->{IMG}, $timg->{IMG}), 0,
78 "check rotate 90 then 180 then 90 matches original");
80 # this could use more tests
81 my $rimg = $img->rotate(degrees=>10);
82 ok($rimg, "rotation by 10 degrees gave us an image");
83 if (!$rimg->write(file=>"testout/t64_rot10.ppm")) {
84 print "# Cannot save: ",$rimg->errstr,"\n";
87 # rotate with background
88 $rimg = $img->rotate(degrees=>10, back=>Imager::Color->new(builtin=>'red'));
89 ok($rimg, "rotate with background gave us an image");
90 if (!$rimg->write(file=>"testout/t64_rot10_back.ppm")) {
91 print "# Cannot save: ",$rimg->errstr,"\n";
95 # rotate with text background
96 my $rimg = $img->rotate(degrees => 45, back => '#FF00FF');
97 ok($rimg, "rotate with background as text gave us an image");
99 # check the color set correctly
100 my $c = $rimg->getpixel(x => 0, 'y' => 0);
101 is_deeply([ 255, 0, 255 ], [ ($c->rgba)[0, 1, 2] ],
102 "check background set correctly");
104 # check error handling for background color
105 $rimg = $img->rotate(degrees => 45, back => "some really unknown color");
106 ok(!$rimg, "should fail due to bad back color");
107 cmp_ok($img->errstr, '=~', "^No color named ", "check error message");
110 { # rotate in double mode
111 my $dimg = $img->to_rgb16;
112 my $rimg = $dimg->rotate(degrees => 10);
113 ok($rimg, "rotate 16-bit image gave us an image")
114 or skip("could not rotate", 3);
115 ok($rimg->write(file => "testout/t64_rotf10.ppm", pnm_write_wide_data => 1),
116 "save wide data rotated")
117 or diag($rimg->errstr);
119 # with a background color
120 my $rimgb = $dimg->rotate(degrees => 10, back => "#FF8000");
121 ok($rimgb, "rotate 16-bit image with back gave us an image")
122 or skip("could not rotate", 1);
123 ok($rimgb->write(file => "testout/t64_rotfb10.ppm", pnm_write_wide_data => 1),
124 "save wide data rotated")
125 or diag($rimgb->errstr);
127 { # rotate in paletted mode
128 my $rimg = $pimg->rotate(degrees => 10);
129 ok($rimg, "rotated paletted image 10 degrees");
130 ok($rimg->write(file => "testout/t64_rotp10.ppm"),
131 "save paletted rotated")
132 or diag($rimg->errstr);
135 my $trimg = $img->matrix_transform(matrix=>[ 1.2, 0, 0,
138 ok($trimg, "matrix_transform() returned an image");
139 $trimg->write(file=>"testout/t64_trans.ppm")
140 or print "# Cannot save: ",$trimg->errstr,"\n";
142 $trimg = $img->matrix_transform(matrix=>[ 1.2, 0, 0,
145 back=>Imager::Color->new(builtin=>'blue'));
146 ok($trimg, "matrix_transform() with back returned an image");
148 $trimg->write(file=>"testout/t64_trans_back.ppm")
149 or print "# Cannot save: ",$trimg->errstr,"\n";
152 my ($src, $degrees, $count) = @_;
154 my $cimg = $src->copy();
158 $cimg = $cimg->rotate(right=>$degrees)
163 ok($cimg, "got a rotated image")
164 or skip("no image to check", 4);
165 my $diff = Imager::i_img_diff($src->{IMG}, $cimg->{IMG});
166 is($diff, 0, "check it matches source")
167 or skip("didn't match", 3);
169 # check that other parameters match
170 is($src->type, $cimg->type, "type check");
171 is($src->bits, $cimg->bits, "bits check");
172 is($src->getchannels, $cimg->getchannels, "channels check");
176 { # http://rt.cpan.org/NoAuth/Bug.html?id=9672
178 local $SIG{__WARN__} =
181 my $printed = $warning;
183 $printed =~ s/\n/\n\#/g;
184 print "# ",$printed, "\n";
186 my $img = Imager->new(xsize=>10, ysize=>10);
188 cmp_ok($warning, '=~', 'void', "correct warning");
189 cmp_ok($warning, '=~', 't64copyflip\\.t', "correct file");
191 $img->rotate(degrees=>5);
192 cmp_ok($warning, '=~', 'void', "correct warning");
193 cmp_ok($warning, '=~', 't64copyflip\\.t', "correct file");
195 $img->matrix_transform(matrix=>[1, 1, 1]);
196 cmp_ok($warning, '=~', 'void', "correct warning");
197 cmp_ok($warning, '=~', 't64copyflip\\.t', "correct file");
201 # 29936 - matrix_transform() should use fabs() instead of abs()
204 # this meant that when sz was < 1 (which it often is for these
205 # transformations), it treated the values out of range, producing a
208 my $src = Imager->new(xsize => 20, ysize => 20);
209 $src->box(filled => 1, color => 'FF0000');
210 my $out = $src->matrix_transform(matrix => [ 1, 0, 0,
213 or print "# ", $src->errstr, "\n";
214 my $blank = Imager->new(xsize => 20, ysize => 20);
215 # they have to be different, surely that would be easy
216 my $diff = Imager::i_img_diff($out->{IMG}, $blank->{IMG});
217 ok($diff, "RT#29936 - check non-blank output");
221 my $im = Imager->new(xsize => 10, ysize => 10, channels => 4);
222 $im->box(filled => 1, color => 'FF0000');
223 my $back = Imager::Color->new(0, 0, 0, 0);
224 my $rot = $im->rotate(degrees => 10, back => $back);
225 # drop the alpha and make sure there's only 2 colors used
226 my $work = $rot->convert(preset => 'noalpha');
227 my $im_pal = $work->to_paletted(make_colors => 'mediancut');
228 my @colors = $im_pal->getcolors;
229 is(@colors, 2, "should be only 2 colors")
231 print "# ", join(",", $_->rgba), "\n" for @colors;
233 @colors = sort { ($a->rgba)[0] <=> ($b->rgba)[0] } @colors;
234 is_color3($colors[0], 0, 0, 0, "check we got black");
235 is_color3($colors[1], 255, 0, 0, "and red");