3 use Test::More tests => 136;
4 BEGIN { use_ok(Imager => qw(:all :handy)) }
6 use Imager::Test qw(test_image is_image is_color3);
8 -d "testout" or mkdir "testout";
10 Imager->open_log(log => "testout/t022double.log");
12 use Imager::Test qw(image_bounds_checks test_colorf_gpix test_colorf_glin mask_tests);
14 use Imager::Color::Float;
16 my $im_g = Imager::i_img_double_new(100, 101, 1);
18 ok(Imager::i_img_getchannels($im_g) == 1,
19 "1 channel image channel count mismatch");
20 ok(Imager::i_img_getmask($im_g) & 1, "1 channel image bad mask");
21 ok(Imager::i_img_virtual($im_g) == 0,
22 "1 channel image thinks it is virtual");
23 my $double_bits = length(pack("d", 1)) * 8;
24 print "# $double_bits double bits\n";
25 ok(Imager::i_img_bits($im_g) == $double_bits,
26 "1 channel image has bits != $double_bits");
27 ok(Imager::i_img_type($im_g) == 0, "1 channel image isn't direct");
29 my @ginfo = i_img_info($im_g);
30 ok($ginfo[0] == 100, "1 channel image width incorrect");
31 ok($ginfo[1] == 101, "1 channel image height incorrect");
35 my $im_rgb = Imager::i_img_double_new(100, 101, 3);
37 ok(Imager::i_img_getchannels($im_rgb) == 3,
38 "3 channel image channel count mismatch");
39 ok((Imager::i_img_getmask($im_rgb) & 7) == 7, "3 channel image bad mask");
40 ok(Imager::i_img_bits($im_rgb) == $double_bits,
41 "3 channel image has bits != $double_bits");
42 ok(Imager::i_img_type($im_rgb) == 0, "3 channel image isn't direct");
44 my $redf = NCF(1, 0, 0);
45 my $greenf = NCF(0, 1, 0);
46 my $bluef = NCF(0, 0, 1);
50 Imager::i_plinf($im_rgb, 0, $y, ($redf) x 100);
54 test_colorf_gpix($im_rgb, 0, 0, $redf);
55 test_colorf_gpix($im_rgb, 99, 0, $redf);
56 test_colorf_gpix($im_rgb, 0, 100, $redf);
57 test_colorf_gpix($im_rgb, 99, 100, $redf);
58 test_colorf_glin($im_rgb, 0, 0, [ ($redf) x 100 ], 'sanity glin @0');
59 test_colorf_glin($im_rgb, 0, 100, [ ($redf) x 100 ], 'sanity glin @100');
61 Imager::i_plinf($im_rgb, 20, 1, ($greenf) x 60);
62 test_colorf_glin($im_rgb, 0, 1,
63 [ ($redf) x 20, ($greenf) x 60, ($redf) x 20 ],
67 my $ooimg = Imager->new(xsize=>200, ysize=>201, bits=>'double');
68 ok($ooimg, "couldn't make double image");
69 is($ooimg->bits, 'double', "oo didn't give double image");
70 ok(!$ooimg->is_bilevel, 'not monochrome');
72 # check that the image is copied correctly
73 my $oocopy = $ooimg->copy;
74 is($oocopy->bits, 'double', "oo copy didn't give double image");
76 ok(!Imager->new(xsize=>0, ysize=>1, bits=>'double'),
77 "fail making 0 width image");
78 cmp_ok(Imager->errstr, '=~', qr/Image sizes must be positive/,
79 "and correct message");
80 ok(!Imager->new(xsize=>1, ysize=>0, bits=>'double'),
81 "fail making 0 height image");
82 cmp_ok(Imager->errstr, '=~', qr/Image sizes must be positive/,
83 "and correct message");
84 ok(!Imager->new(xsize=>-1, ysize=>1, bits=>'double'),
85 "fail making -ve width image");
86 cmp_ok(Imager->errstr, '=~', qr/Image sizes must be positive/,
87 "and correct message");
88 ok(!Imager->new(xsize=>1, ysize=>-1, bits=>'double'),
89 "fail making -ve height image");
90 cmp_ok(Imager->errstr, '=~', qr/Image sizes must be positive/,
91 "and correct message");
92 ok(!Imager->new(xsize=>1, ysize=>1, bits=>'double', channels=>0),
93 "fail making 0 channel image");
94 cmp_ok(Imager->errstr, '=~', qr/channels must be between 1 and 4/,
95 "and correct message");
96 ok(!Imager->new(xsize=>1, ysize=>1, bits=>'double', channels=>5),
97 "fail making 5 channel image");
98 cmp_ok(Imager->errstr, '=~', qr/channels must be between 1 and 4/,
99 "and correct message");
102 # https://rt.cpan.org/Ticket/Display.html?id=8213
103 # check for handling of memory allocation of very large images
104 # only test this on 32-bit machines - on a 64-bit machine it may
105 # result in trying to allocate 4Gb of memory, which is unfriendly at
106 # least and may result in running out of memory, causing a different
111 $Config{ptrsize} == 4
112 or skip "don't want to allocate 4Gb", 8;
113 my $uint_range = 256 ** $Config{intsize};
114 my $dbl_size = $Config{doublesize} || 8;
115 my $dim1 = int(sqrt($uint_range/$dbl_size))+1;
117 my $im_b = Imager->new(xsize=>$dim1, ysize=>$dim1, channels=>1, bits=>'double');
118 is($im_b, undef, "integer overflow check - 1 channel");
120 $im_b = Imager->new(xisze=>$dim1, ysize=>1, channels=>1, bits=>'double');
121 ok($im_b, "but same width ok");
122 $im_b = Imager->new(xisze=>1, ysize=>$dim1, channels=>1, bits=>'double');
123 ok($im_b, "but same height ok");
124 cmp_ok(Imager->errstr, '=~', qr/integer overflow/,
125 "check the error message");
127 # do a similar test with a 3 channel image, so we're sure we catch
128 # the same case where the third dimension causes the overflow
129 my $dim3 = int(sqrt($uint_range / 3 / $dbl_size))+1;
131 $im_b = Imager->new(xsize=>$dim3, ysize=>$dim3, channels=>3, bits=>'double');
132 is($im_b, undef, "integer overflow check - 3 channel");
134 $im_b = Imager->new(xsize=>$dim3, ysize=>1, channels=>3, bits=>'double');
135 ok($im_b, "but same width ok");
136 $im_b = Imager->new(xsize=>1, ysize=>$dim3, channels=>3, bits=>'double');
137 ok($im_b, "but same height ok");
139 cmp_ok(Imager->errstr, '=~', qr/integer overflow/,
140 "check the error message");
144 { # check the channel mask function
146 my $im = Imager->new(xsize => 10, ysize=>10, bits=>'double');
152 my $im = Imager->new(xsize => 10, ysize=>10, bits=>'double');
153 image_bounds_checks($im);
157 { # convert to rgb double
158 my $im = test_image();
159 my $imdb = $im->to_rgb_double;
160 print "# check conversion to double\n";
161 is($imdb->bits, "double", "check bits");
162 is_image($im, $imdb, "check image data matches");
165 { # empty image handling
166 my $im = Imager->new;
167 ok($im, "make empty image");
168 ok(!$im->to_rgb_double, "convert empty image to double");
169 is($im->errstr, "to_rgb_double: empty input image", "check message");
172 my $psamp_outside_error = "Image position outside of image";
175 my $imraw = Imager::i_img_double_new(10, 10, 3);
177 is(Imager::i_psamp($imraw, 0, 2, undef, [ 255, 128, 64 ]), 3,
178 "i_psamp def channels, 3 samples");
179 is_color3(Imager::i_get_pixel($imraw, 0, 2), 255, 128, 64,
180 "check color written");
181 Imager::i_img_setmask($imraw, 5);
182 is(Imager::i_psamp($imraw, 1, 3, undef, [ 64, 128, 192 ]), 3,
183 "i_psamp def channels, 3 samples, masked");
184 is_color3(Imager::i_get_pixel($imraw, 1, 3), 64, 0, 192,
185 "check color written");
186 is(Imager::i_psamp($imraw, 1, 7, [ 0, 1, 2 ], [ 64, 128, 192 ]), 3,
187 "i_psamp channels listed, 3 samples, masked");
188 is_color3(Imager::i_get_pixel($imraw, 1, 7), 64, 0, 192,
189 "check color written");
190 Imager::i_img_setmask($imraw, ~0);
191 is(Imager::i_psamp($imraw, 2, 4, [ 0, 1 ], [ 255, 128, 64, 32 ]), 4,
192 "i_psamp channels [0, 1], 4 samples");
193 is_color3(Imager::i_get_pixel($imraw, 2, 4), 255, 128, 0,
194 "check first color written");
195 is_color3(Imager::i_get_pixel($imraw, 3, 4), 64, 32, 0,
196 "check second color written");
197 is(Imager::i_psamp($imraw, 0, 5, [ 0, 1, 2 ], [ (128, 63, 32) x 10 ]), 30,
199 is_deeply([ Imager::i_gsamp($imraw, 0, 10, 5, [ 0, 1, 2 ]) ],
200 [ (128, 63, 32) x 10 ],
202 is(Imager::i_psamp($imraw, 8, 8, [ 0, 1, 2 ],
203 [ 255, 128, 32, 64, 32, 16, 32, 16, 8 ]),
204 6, "i_psamp channels [0, 1, 2], 9 samples, but room for 6");
207 is(Imager::i_psamp($imraw, 6, 8, [ 0, 1, 3 ], [ 255, 128, 32 ]),
208 undef, "i_psamp channels [0, 1, 3], 3 samples (invalid channel number)");
209 is(_get_error(), "No channel 3 in this image",
210 "check error message");
211 is(Imager::i_psamp($imraw, 6, 8, [ 0, 1, -1 ], [ 255, 128, 32 ]),
212 undef, "i_psamp channels [0, 1, -1], 3 samples (invalid channel number)");
213 is(_get_error(), "No channel -1 in this image",
214 "check error message");
215 is(Imager::i_psamp($imraw, 0, -1, undef, [ 0, 0, 0 ]), undef,
217 is(_get_error(), $psamp_outside_error, "check error message");
218 is(Imager::i_psamp($imraw, 0, 10, undef, [ 0, 0, 0 ]), undef,
220 is(_get_error(), $psamp_outside_error, "check error message");
221 is(Imager::i_psamp($imraw, -1, 0, undef, [ 0, 0, 0 ]), undef,
223 is(_get_error(), $psamp_outside_error, "check error message");
224 is(Imager::i_psamp($imraw, 10, 0, undef, [ 0, 0, 0 ]), undef,
226 is(_get_error(), $psamp_outside_error, "check error message");
228 print "# end psamp tests\n";
233 my $imraw = Imager::i_img_double_new(10, 10, 3);
235 is(Imager::i_psampf($imraw, 0, 2, undef, [ 1, 0.5, 0.25 ]), 3,
236 "i_psampf def channels, 3 samples");
237 is_color3(Imager::i_get_pixel($imraw, 0, 2), 255, 128, 64,
238 "check color written");
239 Imager::i_img_setmask($imraw, 5);
240 is(Imager::i_psampf($imraw, 1, 3, undef, [ 0.25, 0.5, 0.75 ]), 3,
241 "i_psampf def channels, 3 samples, masked");
242 is_color3(Imager::i_get_pixel($imraw, 1, 3), 64, 0, 191,
243 "check color written");
244 is(Imager::i_psampf($imraw, 1, 7, [ 0, 1, 2 ], [ 0.25, 0.5, 0.75 ]), 3,
245 "i_psampf channels listed, 3 samples, masked");
246 is_color3(Imager::i_get_pixel($imraw, 1, 7), 64, 0, 191,
247 "check color written");
248 Imager::i_img_setmask($imraw, ~0);
249 is(Imager::i_psampf($imraw, 2, 4, [ 0, 1 ], [ 1, 0.5, 0.25, 0.125 ]), 4,
250 "i_psampf channels [0, 1], 4 samples");
251 is_color3(Imager::i_get_pixel($imraw, 2, 4), 255, 128, 0,
252 "check first color written");
253 is_color3(Imager::i_get_pixel($imraw, 3, 4), 64, 32, 0,
254 "check second color written");
255 is(Imager::i_psampf($imraw, 0, 5, [ 0, 1, 2 ], [ (0.5, 0.25, 0.125) x 10 ]), 30,
257 is_deeply([ Imager::i_gsamp($imraw, 0, 10, 5, [ 0, 1, 2 ]) ],
258 [ (128, 64, 32) x 10 ],
260 is(Imager::i_psampf($imraw, 8, 8, [ 0, 1, 2 ],
261 [ 1.0, 0.5, 0.125, 0.25, 0.125, 0.0625, 0.125, 0, 1 ]),
262 6, "i_psampf channels [0, 1, 2], 9 samples, but room for 6");
265 is(Imager::i_psampf($imraw, 6, 8, [ 0, 1, 3 ], [ 1, 0.5, 0.125 ]),
266 undef, "i_psampf channels [0, 1, 3], 3 samples (invalid channel number)");
267 is(_get_error(), "No channel 3 in this image",
268 "check error message");
269 is(Imager::i_psampf($imraw, 6, 8, [ 0, 1, -1 ], [ 1, 0.5, 0.125 ]),
270 undef, "i_psampf channels [0, 1, -1], 3 samples (invalid channel number)");
271 is(_get_error(), "No channel -1 in this image",
272 "check error message");
273 is(Imager::i_psampf($imraw, 0, -1, undef, [ 0, 0, 0 ]), undef,
275 is(_get_error(), $psamp_outside_error, "check error message");
276 is(Imager::i_psampf($imraw, 0, 10, undef, [ 0, 0, 0 ]), undef,
278 is(_get_error(), $psamp_outside_error, "check error message");
279 is(Imager::i_psampf($imraw, -1, 0, undef, [ 0, 0, 0 ]), undef,
281 is(_get_error(), $psamp_outside_error, "check error message");
282 is(Imager::i_psampf($imraw, 10, 0, undef, [ 0, 0, 0 ]), undef,
284 is(_get_error(), $psamp_outside_error, "check error message");
286 print "# end psampf tests\n";
291 unless ($ENV{IMAGER_KEEP_FILES}) {
292 unlink "testout/t022double.log";
296 my @errors = Imager::i_errors();
297 return join(": ", map $_->[0], @errors);