3 use Test::More tests => 95;
5 use Imager::Test qw(is_color3 is_image is_imaged test_image_double test_image isnt_image is_image_similar);
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");
25 my $empty = Imager->new;
26 ok(!$empty->copy, "fail to copy an empty image");
27 is($empty->errstr, "copy: empty input image", "check error message");
30 # test if ->flip(dir=>'h')->flip(dir=>'h') doesn't alter the image
31 $nimg->flip(dir=>"h")->flip(dir=>"h");
32 is_image($nimg, $img, "double horiz flipped matches original");
34 # test if ->flip(dir=>'v')->flip(dir=>'v') doesn't alter the image
35 $nimg->flip(dir=>"v")->flip(dir=>"v");
36 is_image($nimg, $img, "double vertically flipped image matches original");
39 # test if ->flip(dir=>'h')->flip(dir=>'v') is same as ->flip(dir=>'hv')
40 $nimg->flip(dir=>"v")->flip(dir=>"h")->flip(dir=>"hv");;
41 is_image($img, $nimg, "check flip with hv matches flip v then flip h");
44 my $empty = Imager->new;
45 ok(!$empty->flip(dir => "v"), "fail to flip an empty image");
46 is($empty->errstr, "flip: empty input image", "check error message");
50 my $imsrc = test_image_double;
51 my $imcp = $imsrc->copy;
52 is_imaged($imsrc, $imcp, "copy double image");
53 $imcp->flip(dir=>"v")->flip(dir=>"v");
54 is_imaged($imsrc, $imcp, "flip v twice");
55 $imcp->flip(dir=>"h")->flip(dir=>"h");
56 is_imaged($imsrc, $imcp, "flip h twice");
57 $imcp->flip(dir=>"h")->flip(dir=>"v")->flip(dir=>"hv");
58 is_imaged($imsrc, $imcp, "flip h,v,hv twice");
62 my $impal = test_image()->to_paletted;
63 my $imcp = $impal->copy;
64 is($impal->type, "paletted", "check paletted test image is");
65 is($imcp->type, "paletted", "check copy test image is paletted");
66 ok($impal->flip(dir => "h"), "flip paletted h");
67 isnt_image($impal, $imcp, "check it changed");
68 ok($impal->flip(dir => "v"), "flip paletted v");
69 ok($impal->flip(dir => "hv"), "flip paletted hv");
70 is_image($impal, $imcp, "should be back to original image");
71 is($impal->type, "paletted", "and still paletted");
74 rot_test($img, 90, 4);
75 rot_test($img, 180, 2);
76 rot_test($img, 270, 4);
79 my $pimg = $img->to_paletted();
80 rot_test($pimg, 90, 4);
81 rot_test($pimg, 180, 2);
82 rot_test($pimg, 270, 4);
83 rot_test($pimg, 0, 1);
85 my $timg = $img->rotate(right=>90)->rotate(right=>270);
86 is(Imager::i_img_diff($img->{IMG}, $timg->{IMG}), 0,
87 "check rotate 90 then 270 matches original");
88 $timg = $img->rotate(right=>90)->rotate(right=>180)->rotate(right=>90);
89 is(Imager::i_img_diff($img->{IMG}, $timg->{IMG}), 0,
90 "check rotate 90 then 180 then 90 matches original");
92 # this could use more tests
93 my $rimg = $img->rotate(degrees=>10);
94 ok($rimg, "rotation by 10 degrees gave us an image");
95 if (!$rimg->write(file=>"testout/t64_rot10.ppm")) {
96 print "# Cannot save: ",$rimg->errstr,"\n";
99 # rotate with background
100 $rimg = $img->rotate(degrees=>10, back=>Imager::Color->new(builtin=>'red'));
101 ok($rimg, "rotate with background gave us an image");
102 if (!$rimg->write(file=>"testout/t64_rot10_back.ppm")) {
103 print "# Cannot save: ",$rimg->errstr,"\n";
107 # rotate with text background
108 my $rimg = $img->rotate(degrees => 45, back => '#FF00FF');
109 ok($rimg, "rotate with background as text gave us an image");
111 # check the color set correctly
112 my $c = $rimg->getpixel(x => 0, 'y' => 0);
113 is_deeply([ 255, 0, 255 ], [ ($c->rgba)[0, 1, 2] ],
114 "check background set correctly");
116 # check error handling for background color
117 $rimg = $img->rotate(degrees => 45, back => "some really unknown color");
118 ok(!$rimg, "should fail due to bad back color");
119 cmp_ok($img->errstr, '=~', "^No color named ", "check error message");
122 { # rotate in double mode
123 my $dimg = $img->to_rgb16;
124 my $rimg = $dimg->rotate(degrees => 10);
125 ok($rimg, "rotate 16-bit image gave us an image")
126 or skip("could not rotate", 3);
127 ok($rimg->write(file => "testout/t64_rotf10.ppm", pnm_write_wide_data => 1),
128 "save wide data rotated")
129 or diag($rimg->errstr);
131 # with a background color
132 my $rimgb = $dimg->rotate(degrees => 10, back => "#FF8000");
133 ok($rimgb, "rotate 16-bit image with back gave us an image")
134 or skip("could not rotate", 1);
135 ok($rimgb->write(file => "testout/t64_rotfb10.ppm", pnm_write_wide_data => 1),
136 "save wide data rotated")
137 or diag($rimgb->errstr);
139 { # rotate in paletted mode
140 my $rimg = $pimg->rotate(degrees => 10);
141 ok($rimg, "rotated paletted image 10 degrees");
142 ok($rimg->write(file => "testout/t64_rotp10.ppm"),
143 "save paletted rotated")
144 or diag($rimg->errstr);
147 my $trimg = $img->matrix_transform(matrix=>[ 1.2, 0, 0,
150 ok($trimg, "matrix_transform() returned an image");
151 $trimg->write(file=>"testout/t64_trans.ppm")
152 or print "# Cannot save: ",$trimg->errstr,"\n";
154 $trimg = $img->matrix_transform(matrix=>[ 1.2, 0, 0,
157 back=>Imager::Color->new(builtin=>'blue'));
158 ok($trimg, "matrix_transform() with back returned an image");
160 $trimg->write(file=>"testout/t64_trans_back.ppm")
161 or print "# Cannot save: ",$trimg->errstr,"\n";
164 my $empty = Imager->new;
165 ok(!$empty->matrix_transform(matrix => [ 1, 0, 0,
168 "can't transform an empty image");
169 is($empty->errstr, "matrix_transform: empty input image",
170 "check error message");
174 my ($src, $degrees, $count) = @_;
176 my $cimg = $src->copy();
180 $cimg = $cimg->rotate(right=>$degrees)
185 ok($cimg, "got a rotated image")
186 or skip("no image to check", 4);
187 my $diff = Imager::i_img_diff($src->{IMG}, $cimg->{IMG});
188 is($diff, 0, "check it matches source")
189 or skip("didn't match", 3);
191 # check that other parameters match
192 is($src->type, $cimg->type, "type check");
193 is($src->bits, $cimg->bits, "bits check");
194 is($src->getchannels, $cimg->getchannels, "channels check");
198 { # http://rt.cpan.org/NoAuth/Bug.html?id=9672
200 local $SIG{__WARN__} =
203 my $printed = $warning;
205 $printed =~ s/\n/\n\#/g;
206 print "# ",$printed, "\n";
208 my $img = Imager->new(xsize=>10, ysize=>10);
210 cmp_ok($warning, '=~', 'void', "correct warning");
211 cmp_ok($warning, '=~', 't64copyflip\\.t', "correct file");
213 $img->rotate(degrees=>5);
214 cmp_ok($warning, '=~', 'void', "correct warning");
215 cmp_ok($warning, '=~', 't64copyflip\\.t', "correct file");
217 $img->matrix_transform(matrix=>[1, 1, 1]);
218 cmp_ok($warning, '=~', 'void', "correct warning");
219 cmp_ok($warning, '=~', 't64copyflip\\.t', "correct file");
223 # 29936 - matrix_transform() should use fabs() instead of abs()
226 # this meant that when sz was < 1 (which it often is for these
227 # transformations), it treated the values out of range, producing a
230 my $src = Imager->new(xsize => 20, ysize => 20);
231 $src->box(filled => 1, color => 'FF0000');
232 my $out = $src->matrix_transform(matrix => [ 1, 0, 0,
235 or print "# ", $src->errstr, "\n";
236 my $blank = Imager->new(xsize => 20, ysize => 20);
237 # they have to be different, surely that would be easy
238 my $diff = Imager::i_img_diff($out->{IMG}, $blank->{IMG});
239 ok($diff, "RT#29936 - check non-blank output");
243 my $im = Imager->new(xsize => 10, ysize => 10, channels => 4);
244 $im->box(filled => 1, color => 'FF0000');
245 my $back = Imager::Color->new(0, 0, 0, 0);
246 my $rot = $im->rotate(degrees => 10, back => $back);
247 # drop the alpha and make sure there's only 2 colors used
248 my $work = $rot->convert(preset => 'noalpha');
249 my $im_pal = $work->to_paletted(make_colors => 'mediancut');
250 my @colors = $im_pal->getcolors;
251 is(@colors, 2, "should be only 2 colors")
253 print "# ", join(",", $_->rgba), "\n" for @colors;
255 @colors = sort { ($a->rgba)[0] <=> ($b->rgba)[0] } @colors;
256 is_color3($colors[0], 0, 0, 0, "check we got black");
257 is_color3($colors[1], 255, 0, 0, "and red");
260 { # RT #77063 rotate with degrees => 270 gives a black border
261 # so be a little less strict about rounding up
263 # - improved calculation of the rotation matrix
264 # - added rounding to interpolation for 1/3 channel images
266 $im->box(color => "#00F");
267 my $right = $im->rotate(right => 270);
268 my $deg = $im->rotate(degrees => 270, back => "#FFF");
269 is($deg->getwidth, 150, "check degrees => 270 width");
270 is($deg->getheight, 150, "check degrees => 270 height");
271 ok($deg->write(file => "testout/t64rotdeg270.ppm"), "save it");
272 $right->write(file => "testout/t64rotright270.ppm");
273 is_image($deg, $right, "check right and degrees result the same");
274 #$deg = $deg->convert(preset => "addalpha");
275 # $right = $right->convert(preset => "addalpha");
276 # my $diff = $right->difference(other => $deg, mindist => 1);
277 # $diff->write(file => "testout/t64rotdiff.png");
281 my $empty = Imager->new;
282 ok(!$empty->rotate(degrees => 90), "can't rotate an empty image");
283 is($empty->errstr, "rotate: empty input image",
284 "check error message");