2 # t/t01introvert.t - tests internals of image formats
3 # to make sure we get expected values
6 use Test::More tests => 220;
8 BEGIN { use_ok(Imager => qw(:handy :all)) }
10 use Imager::Test qw(image_bounds_checks is_color3 is_color4 is_fcolor4 color_cmp mask_tests);
12 init_log("testout/t01introvert.log",1);
14 my $im_g = Imager::ImgRaw::new(100, 101, 1);
16 my $red = NC(255, 0, 0);
17 my $green = NC(0, 255, 0);
18 my $blue = NC(0, 0, 255);
20 use Imager::Color::Float;
21 my $f_black = Imager::Color::Float->new(0, 0, 0);
22 my $f_red = Imager::Color::Float->new(1.0, 0, 0);
23 my $f_green = Imager::Color::Float->new(0, 1.0, 0);
24 my $f_blue = Imager::Color::Float->new(0, 0, 1.0);
26 is(Imager::i_img_getchannels($im_g), 1, "1 channel image channel count");
27 ok(Imager::i_img_getmask($im_g) & 1, "1 channel image mask");
28 ok(!Imager::i_img_virtual($im_g), "1 channel image not virtual");
29 is(Imager::i_img_bits($im_g), 8, "1 channel image has 8 bits/sample");
30 is(Imager::i_img_type($im_g), 0, "1 channel image is direct");
32 my @ginfo = Imager::i_img_info($im_g);
33 is($ginfo[0], 100, "1 channel image width");
34 is($ginfo[1], 101, "1 channel image height");
36 undef $im_g; # can we check for release after this somehow?
38 my $im_rgb = Imager::ImgRaw::new(100, 101, 3);
40 is(Imager::i_img_getchannels($im_rgb), 3, "3 channel image channel count");
41 is((Imager::i_img_getmask($im_rgb) & 7), 7, "3 channel image mask");
42 is(Imager::i_img_bits($im_rgb), 8, "3 channel image has 8 bits/sample");
43 is(Imager::i_img_type($im_rgb), 0, "3 channel image is direct");
47 my $im_pal = Imager::i_img_pal_new(100, 101, 3, 256);
49 ok($im_pal, "make paletted image");
50 is(Imager::i_img_getchannels($im_pal), 3, "pal img channel count");
51 is(Imager::i_img_bits($im_pal), 8, "pal img bits");
52 is(Imager::i_img_type($im_pal), 1, "pal img is paletted");
54 my $red_idx = check_add($im_pal, $red, 0);
55 my $green_idx = check_add($im_pal, $green, 1);
56 my $blue_idx = check_add($im_pal, $blue, 2);
58 # basic writing of palette indicies
60 is(Imager::i_ppal($im_pal, 0, 0, ($red_idx) x 100), 100,
61 "write red 100 times");
63 is(Imager::i_ppal($im_pal, 50, 0, ($blue_idx) x 50), 50,
64 "write blue 50 times");
66 # make sure we get it back
67 my @pals = Imager::i_gpal($im_pal, 0, 100, 0);
68 ok(!grep($_ != $red_idx, @pals[0..49]), "check for red");
69 ok(!grep($_ != $blue_idx, @pals[50..99]), "check for blue");
70 is(Imager::i_gpal($im_pal, 0, 100, 0), "\0" x 50 . "\2" x 50,
71 "gpal in scalar context");
72 my @samp = Imager::i_gsamp($im_pal, 0, 100, 0, 0, 1, 2);
73 is(@samp, 300, "gsamp count in list context");
74 my @samp_exp = ((255, 0, 0) x 50, (0, 0, 255) x 50);
75 is_deeply(\@samp, \@samp_exp, "gsamp list deep compare");
76 my $samp = Imager::i_gsamp($im_pal, 0, 100, 0, 0, 1, 2);
77 is(length($samp), 300, "gsamp scalar length");
78 is($samp, "\xFF\0\0" x 50 . "\0\0\xFF" x 50, "gsamp scalar bytes");
80 # reading indicies as colors
81 my $c_red = Imager::i_get_pixel($im_pal, 0, 0);
82 ok($c_red, "got the red pixel");
83 is_color3($c_red, 255, 0, 0, "and it's red");
84 my $c_blue = Imager::i_get_pixel($im_pal, 50, 0);
85 ok($c_blue, "got the blue pixel");
86 is_color3($c_blue, 0, 0, 255, "and it's blue");
89 ok(Imager::i_ppix($im_pal, 0, 0, $green) == 0, "draw with color in palette");
90 # that was in the palette, should still be paletted
91 is(Imager::i_img_type($im_pal), 1, "image still paletted");
93 my $c_green = Imager::i_get_pixel($im_pal, 0, 0);
94 ok($c_green, "got green pixel");
95 is_color3($c_green, 0, 255, 0, "and it's green");
97 is(Imager::i_colorcount($im_pal), 3, "still 3 colors in palette");
98 is(Imager::i_findcolor($im_pal, $green), 1, "and green is the second");
100 my $black = NC(0, 0, 0);
101 # this should convert the image to RGB
102 ok(Imager::i_ppix($im_pal, 1, 0, $black) == 0, "draw with black (not in palette)");
103 is(Imager::i_img_type($im_pal), 0, "pal img shouldn't be paletted now");
107 colors => [$red, $green, $blue, $black],
110 my $im_pal2 = Imager::i_img_to_pal($im_pal, \%quant);
111 ok($im_pal2, "got an image from quantizing");
112 is(@{$quant{colors}}, 4, "has the right number of colours");
113 is(Imager::i_gsamp($im_pal2, 0, 100, 0, 0, 1, 2),
114 "\0\xFF\0\0\0\0"."\xFF\0\0" x 48 . "\0\0\xFF" x 50,
115 "colors are still correct");
117 # test the OO interfaces
118 my $impal2 = Imager->new(type=>'pseudo', xsize=>200, ysize=>201);
119 ok($impal2, "make paletted via OO");
120 is($impal2->getchannels, 3, "check channels");
121 is($impal2->bits, 8, "check bits");
122 is($impal2->type, 'paletted', "check type");
125 my $red_idx = $impal2->addcolors(colors=>[$red]);
126 ok($red_idx, "add red to OO");
127 is(0+$red_idx, 0, "and it's expected index for red");
128 my $blue_idx = $impal2->addcolors(colors=>[$blue, $green]);
129 ok($blue_idx, "add blue/green via OO");
130 is($blue_idx, 1, "and it's expected index for blue");
131 my $green_idx = $blue_idx + 1;
132 my $c = $impal2->getcolors(start=>$green_idx);
133 is_color3($c, 0, 255, 0, "found green where expected");
134 my @cols = $impal2->getcolors;
135 is(@cols, 3, "got 3 colors");
136 my @exp = ( $red, $blue, $green );
139 if (color_cmp($cols[$i], $exp[$i])) {
144 ok($good, "all colors in palette as expected");
145 is($impal2->colorcount, 3, "and colorcount returns 3");
146 is($impal2->maxcolors, 256, "maxcolors as expected");
147 is($impal2->findcolor(color=>$blue), 1, "findcolors found blue");
148 ok($impal2->setcolors(start=>0, colors=>[ $blue, $red ]),
151 # make an rgb version
152 my $imrgb2 = $impal2->to_rgb8();
153 is($imrgb2->type, 'direct', "converted is direct");
155 # and back again, specifying the palette
156 my @colors = ( $red, $blue, $green );
157 my $impal3 = $imrgb2->to_paletted(colors=>\@colors,
159 translate=>'closest');
160 ok($impal3, "got a paletted image from conversion");
161 dump_colors(@colors);
162 print "# in image\n";
163 dump_colors($impal3->getcolors);
164 is($impal3->colorcount, 3, "new image has expected color table size");
165 is($impal3->type, 'paletted', "and is paletted");
168 { # basic checks, 8-bit direct images
169 my $im = Imager->new(xsize => 2, ysize => 3);
170 ok($im, 'create 8-bit direct image');
171 is($im->bits, 8, '8 bits');
172 ok(!$im->virtual, 'not virtual');
173 is($im->type, 'direct', 'direct image');
174 ok(!$im->is_bilevel, 'not mono');
177 ok(!Imager->new(xsize=>0, ysize=>1), "fail to create 0 height image");
178 cmp_ok(Imager->errstr, '=~', qr/Image sizes must be positive/,
179 "0 height error message check");
180 ok(!Imager->new(xsize=>1, ysize=>0), "fail to create 0 width image");
181 cmp_ok(Imager->errstr, '=~', qr/Image sizes must be positive/,
182 "0 width error message check");
183 ok(!Imager->new(xsize=>-1, ysize=>1), "fail to create -ve height image");
184 cmp_ok(Imager->errstr, '=~', qr/Image sizes must be positive/,
185 "-ve width error message check");
186 ok(!Imager->new(xsize=>1, ysize=>-1), "fail to create -ve width image");
187 cmp_ok(Imager->errstr, '=~', qr/Image sizes must be positive/,
188 "-ve height error message check");
189 ok(!Imager->new(xsize=>-1, ysize=>-1), "fail to create -ve width/height image");
190 cmp_ok(Imager->errstr, '=~', qr/Image sizes must be positive/,
191 "-ve width/height error message check");
193 ok(!Imager->new(xsize=>1, ysize=>1, channels=>0),
194 "fail to create a zero channel image");
195 cmp_ok(Imager->errstr, '=~', qr/channels must be between 1 and 4/,
196 "out of range channel message check");
197 ok(!Imager->new(xsize=>1, ysize=>1, channels=>5),
198 "fail to create a five channel image");
199 cmp_ok(Imager->errstr, '=~', qr/channels must be between 1 and 4/,
200 "out of range channel message check");
203 # https://rt.cpan.org/Ticket/Display.html?id=8213
204 # check for handling of memory allocation of very large images
205 # only test this on 32-bit machines - on a 64-bit machine it may
206 # result in trying to allocate 4Gb of memory, which is unfriendly at
207 # least and may result in running out of memory, causing a different
212 skip("don't want to allocate 4Gb", 8) unless $Config{intsize} == 4;
214 my $uint_range = 256 ** $Config{intsize};
215 print "# range $uint_range\n";
216 my $dim1 = int(sqrt($uint_range))+1;
218 my $im_b = Imager->new(xsize=>$dim1, ysize=>$dim1, channels=>1);
219 is($im_b, undef, "integer overflow check - 1 channel");
221 $im_b = Imager->new(xisze=>$dim1, ysize=>1, channels=>1);
222 ok($im_b, "but same width ok");
223 $im_b = Imager->new(xisze=>1, ysize=>$dim1, channels=>1);
224 ok($im_b, "but same height ok");
225 cmp_ok(Imager->errstr, '=~', qr/integer overflow/,
226 "check the error message");
228 # do a similar test with a 3 channel image, so we're sure we catch
229 # the same case where the third dimension causes the overflow
230 my $dim3 = int(sqrt($uint_range / 3))+1;
232 $im_b = Imager->new(xsize=>$dim3, ysize=>$dim3, channels=>3);
233 is($im_b, undef, "integer overflow check - 3 channel");
235 $im_b = Imager->new(xisze=>$dim3, ysize=>1, channels=>3);
236 ok($im_b, "but same width ok");
237 $im_b = Imager->new(xisze=>1, ysize=>$dim3, channels=>3);
238 ok($im_b, "but same height ok");
240 cmp_ok(Imager->errstr, '=~', qr/integer overflow/,
241 "check the error message");
245 { # http://rt.cpan.org/NoAuth/Bug.html?id=9672
247 local $SIG{__WARN__} =
250 my $printed = $warning;
252 $printed =~ s/\n/\n\#/g;
253 print "# ",$printed, "\n";
255 my $img = Imager->new(xsize=>10, ysize=>10);
256 $img->to_rgb8(); # doesn't really matter what the source is
257 cmp_ok($warning, '=~', 'void', "correct warning");
258 cmp_ok($warning, '=~', 't01introvert\\.t', "correct file");
261 { # http://rt.cpan.org/NoAuth/Bug.html?id=11860
262 my $im = Imager->new(xsize=>2, ysize=>2);
263 $im->setpixel(x=>0, 'y'=>0, color=>$red);
264 $im->setpixel(x=>1, 'y'=>0, color=>$blue);
266 my @row = Imager::i_glin($im->{IMG}, 0, 2, 0);
267 is(@row, 2, "got 2 pixels from i_glin");
268 is_color3($row[0], 255, 0, 0, "red first");
269 is_color3($row[1], 0, 0, 255, "then blue");
272 { # general tag tests
274 # we don't care much about the image itself
275 my $im = Imager::ImgRaw::new(10, 10, 1);
277 ok(Imager::i_tags_addn($im, 'alpha', 0, 101), "i_tags_addn(...alpha, 0, 101)");
278 ok(Imager::i_tags_addn($im, undef, 99, 102), "i_tags_addn(...undef, 99, 102)");
279 is(Imager::i_tags_count($im), 2, "should have 2 tags");
280 ok(Imager::i_tags_addn($im, undef, 99, 103), "i_tags_addn(...undef, 99, 103)");
281 is(Imager::i_tags_count($im), 3, "should have 3 tags, despite the dupe");
282 is(Imager::i_tags_find($im, 'alpha', 0), '0 but true', "find alpha");
283 is(Imager::i_tags_findn($im, 99, 0), 1, "find 99");
284 is(Imager::i_tags_findn($im, 99, 2), 2, "find 99 again");
285 is(Imager::i_tags_get($im, 0), 101, "check first");
286 is(Imager::i_tags_get($im, 1), 102, "check second");
287 is(Imager::i_tags_get($im, 2), 103, "check third");
289 ok(Imager::i_tags_add($im, 'beta', 0, "hello", 0),
290 "add string with string key");
291 ok(Imager::i_tags_add($im, 'gamma', 0, "goodbye", 0),
293 ok(Imager::i_tags_add($im, undef, 199, "aloha", 0),
294 "add one keyed by number");
295 is(Imager::i_tags_find($im, 'beta', 0), 3, "find beta");
296 is(Imager::i_tags_find($im, 'gamma', 0), 4, "find gamma");
297 is(Imager::i_tags_findn($im, 199, 0), 5, "find 199");
298 ok(Imager::i_tags_delete($im, 2), "delete");
299 is(Imager::i_tags_find($im, 'beta', 0), 2, 'find beta after deletion');
300 ok(Imager::i_tags_delbyname($im, 'beta'), 'delete beta by name');
301 is(Imager::i_tags_find($im, 'beta', 0), undef, 'beta not there now');
302 is(Imager::i_tags_get_string($im, "gamma"), "goodbye",
303 'i_tags_get_string() on a string');
304 is(Imager::i_tags_get_string($im, 99), 102,
305 'i_tags_get_string() on a number entry');
306 ok(Imager::i_tags_delbycode($im, 99), 'delete by code');
307 is(Imager::i_tags_findn($im, 99, 0), undef, '99 not there now');
308 is(Imager::i_tags_count($im), 3, 'final count of 3');
312 print "# low-level scan line function tests\n";
313 my $im = Imager::ImgRaw::new(10, 10, 4);
314 Imager::i_ppix($im, 5, 0, $red);
317 my @colors = Imager::i_glin($im, 0, 10, 0);
318 is_deeply([ (0) x 20, (255, 0, 0, 255), (0) x 16 ],
319 [ map $_->rgba, @colors ],
320 "i_glin - list context");
321 my $colors = Imager::i_glin($im, 0, 10, 0);
322 is("00" x 20 . "FF0000FF" . "00" x 16,
323 uc unpack("H*", $colors), "i_glin - scalar context");
324 my @fcolors = Imager::i_glinf($im, 0, 10, 0);
325 is_deeply([ (0.0) x 20, (1.0, 0, 0, 1.0) , (0) x 16 ],
326 [ map $_->rgba, @fcolors ],
327 "i_glinf - list context");
328 my $fcolors = Imager::i_glinf($im, 0, 10, 0);
329 is_deeply([ (0.0) x 20, (1.0, 0, 0, 1.0) , (0) x 16 ],
330 [ unpack "d*", $fcolors ],
331 "i_glinf - scalar context");
334 my @plin_colors = (($black) x 4, $red, $blue, ($black) x 4);
335 is(Imager::i_plin($im, 0, 1, @plin_colors),
336 10, "i_plin - pass in a list");
337 # make sure we get it back
338 is_deeply([ map [ $_->rgba ], @plin_colors ],
339 [ map [ $_->rgba ], Imager::i_glin($im, 0, 10, 1) ],
340 "check i_plin wrote to the image");
348 is(Imager::i_plin($im, 0, 2, pack("C*", @scalar_plin)),
349 10, "i_plin - pass in a scalar");
350 is_deeply(\@scalar_plin,
351 [ map $_->rgba , Imager::i_glin($im, 0, 10, 2) ],
352 "check i_plin scalar wrote to the image");
354 my @plinf_colors = # Note: only 9 pixels
361 is(Imager::i_plinf($im, 0, 3, @plinf_colors), 9,
363 is_deeply([ map $_->rgba, Imager::i_glinf($im, 0, 9, 3) ],
364 [ map $_->rgba, @plinf_colors ],
365 "check colors were written");
368 ( 1.0, 1.0, 0, 1.0 ) x 3,
369 ( 0, 1.0, 1.0, 1.0 ) x 2,
371 ( 1.0, 0, 1.0, 1.0 ),
373 is(Imager::i_plinf($im, 2, 4, pack("d*", @scalar_plinf)),
374 7, "i_plinf - scalar");
375 is_deeply(\@scalar_plinf,
376 [ map $_->rgba, Imager::i_glinf($im, 2, 9, 4) ],
377 "check colors were written");
379 is_deeply([ Imager::i_gsamp($im, 0, 10, 0, (0, 3)) ],
380 [ (0, 0) x 5, (255, 255), (0, 0) x 4 ],
381 "i_gsamp list context");
382 is("0000" x 5 . "FFFF" . "0000" x 4,
383 uc unpack("H*", Imager::i_gsamp($im, 0, 10, 0, (0, 3))),
384 "i_gsamp scalar context");
385 is_deeply([ Imager::i_gsampf($im, 2, 9, 4, 0, 2, 3) ],
386 [ (1.0, 0, 1.0) x 3, (0, 1.0, 1.0) x 2, (0, 0, 0),
387 (1.0, 1.0, 1.0) ], "i_gsampf - list context");
388 is_deeply([ unpack("d*", Imager::i_gsampf($im, 2, 9, 4, 0, 2, 3)) ],
389 [ (1.0, 0, 1.0) x 3, (0, 1.0, 1.0) x 2, (0, 0, 0),
390 (1.0, 1.0, 1.0) ], "i_gsampf - scalar context");
391 print "# end low-level scan-line function tests\n";
395 print "# OO level scanline function tests\n";
396 my $im = Imager->new(xsize=>10, ysize=>10, channels=>4);
397 $im->setpixel(color=>$red, 'x'=>5, 'y'=>0);
398 ok(!$im->getscanline(), "getscanline() - supply nothing, get nothing");
399 is($im->errstr, "missing y parameter", "check message");
400 is_deeply([ map [ $_->rgba ], $im->getscanline('y'=>0) ],
401 [ ([ 0,0,0,0]) x 5, [ 255, 0, 0, 255 ], ([ 0,0,0,0]) x 4 ],
402 "getscanline, list context, default x, width");
403 is_deeply([ map [ $_->rgba ], $im->getscanline('y'=>0, 'x'=>3) ],
404 [ ([0,0,0,0]) x 2, [ 255, 0, 0, 255 ], ([0,0,0,0]) x 4 ],
405 "getscanline, list context, default width");
406 is_deeply([ map [ $_->rgba ], $im->getscanline('y'=>0, 'x'=>4, width=>4) ],
407 [ [0,0,0,0], [ 255, 0, 0, 255 ], ([0,0,0,0]) x 2 ],
408 "getscanline, list context, no defaults");
409 is(uc unpack("H*", $im->getscanline('y'=>0)),
410 "00000000" x 5 . "FF0000FF" . "00000000" x 4,
411 "getscanline, scalar context, default x, width");
412 is_deeply([ map [ $_->rgba ],
413 $im->getscanline('y'=>0, 'x'=>4, width=>4, type=>'float') ],
414 [ [0,0,0,0], [ 1.0, 0, 0, 1.0 ], ([0,0,0,0]) x 2 ],
415 "getscanline float, list context, no defaults");
416 is_deeply([ unpack "d*",
417 $im->getscanline('y'=>0, 'x'=>4, width=>4, type=>'float') ],
418 [ (0,0,0,0), ( 1.0, 0, 0, 1.0 ), (0,0,0,0) x 2 ],
419 "getscanline float, scalar context, no defaults");
421 ok(!$im->getscanline('y'=>0, type=>'invalid'),
422 "check invalid type checking");
423 like($im->errstr, qr/invalid type parameter/,
424 "check message for invalid type");
426 my @plin_colors = (($black) x 4, $red, $blue, ($green) x 4);
427 is($im->setscanline('y'=>1, pixels=>\@plin_colors), 10,
428 "setscanline - arrayref, default x");
429 is_deeply([ map [ $_->rgba ], @plin_colors ],
430 [ map [ $_->rgba ], $im->getscanline('y'=>1) ],
431 "check colors were written");
433 my @plin_colors2 = ( $green, $red, $blue, $red );
434 is($im->setscanline('y'=>2, 'x'=>3, pixels=>\@plin_colors2), 4,
435 "setscanline - arrayref");
437 # using map instead of x here due to a bug in some versions of Test::More
438 # fixed in the latest Test::More
439 is_deeply([ ( map [ 0,0,0,0 ], 1..3), (map [ $_->rgba ], @plin_colors2),
440 ( map [ 0,0,0,0 ], 1..3) ],
441 [ map [ $_->rgba ], $im->getscanline('y'=>2) ],
442 "check write to middle of line");
444 my $raw_colors = pack "H*", "FF00FFFF"."FF0000FF"."FFFFFFFF";
445 is($im->setscanline('y'=>3, 'x'=>2, pixels=>$raw_colors), 3,
446 "setscanline - scalar, default raw type")
447 or print "# ",$im->errstr,"\n";
448 is(uc unpack("H*", $im->getscanline('y'=>3, 'x'=>1, 'width'=>5)),
449 "00000000".uc(unpack "H*", $raw_colors)."00000000",
453 my @fcolors = ( $f_red, $f_blue, $f_black, $f_green );
454 is($im->setscanline('y'=>4, 'x'=>3, pixels=>\@fcolors), 4,
455 "setscanline - float arrayref");
456 is_deeply([ map [ $_->rgba ], @fcolors ],
457 [ map [ $_->rgba ], $im->getscanline('y'=>4, 'x'=>3, width=>4, type=>'float') ],
460 my $packed_fcolors = pack "d*", map $_->rgba, @fcolors;
461 is($im->setscanline('y'=>5, 'x'=>4, pixels=>$packed_fcolors, type=>'float'), 4,
462 "setscanline - float scalar");
463 is_deeply([ map [ $_->rgba ], @fcolors ],
464 [ map [ $_->rgba ], $im->getscanline('y'=>5, 'x'=>4, width=>4, type=>'float') ],
468 is_deeply([ $im->getsamples('y'=>1, channels=>[ 0 ]) ],
469 [ map +($_->rgba)[0], @plin_colors ],
470 "get channel 0, list context, default x, width");
471 is_deeply([ unpack "C*", $im->getsamples('y'=>1, channels=>[0, 2]) ],
472 [ map { ($_->rgba)[0, 2] } @plin_colors ],
473 "get channel 0, 1, scalar context");
474 is_deeply([ $im->getsamples('y'=>4, 'x'=>3, width=>4, type=>'float',
476 [ map { ($_->rgba)[1,3] } @fcolors ],
477 "get channels 1,3, list context, float samples");
478 is_deeply([ unpack "d*",
479 $im->getsamples('y'=>4, 'x'=>3, width=>4,
480 type=>'float', channels=>[3,2,1,0]) ],
481 [ map { ($_->rgba)[3,2,1,0] } @fcolors ],
482 "get channels 3..0 as scalar, float samples");
484 print "# end OO level scanline function tests\n";
487 { # to avoid confusion, i_glin/i_glinf modified to return 0 in unused
488 # channels at the perl level
489 my $im = Imager->new(xsize => 4, ysize => 4, channels => 2);
490 my $fill = Imager::Color->new(128, 255, 0, 0);
491 ok($im->box(filled => 1, color => $fill), 'fill it up');
492 my $data = $im->getscanline('y' => 0);
493 is(unpack("H*", $data), "80ff000080ff000080ff000080ff0000",
494 "check we get zeros");
495 my @colors = $im->getscanline('y' => 0);
496 is_color4($colors[0], 128, 255, 0, 0, "check object interface[0]");
497 is_color4($colors[1], 128, 255, 0, 0, "check object interface[1]");
498 is_color4($colors[2], 128, 255, 0, 0, "check object interface[2]");
499 is_color4($colors[3], 128, 255, 0, 0, "check object interface[3]");
501 my $dataf = $im->getscanline('y' => 0, type => 'float');
502 # the extra pack/unpack is to force double precision rather than long
503 # double, otherwise the test fails
504 is_deeply([ unpack("d*", $dataf) ],
505 [ unpack("d*", pack("d*", ( 128.0 / 255.0, 1.0, 0, 0, ) x 4)) ],
506 "check we get zeroes (double)");
507 my @fcolors = $im->getscanline('y' => 0, type => 'float');
508 is_fcolor4($fcolors[0], 128.0/255.0, 1.0, 0, 0, "check object interface[0]");
509 is_fcolor4($fcolors[1], 128.0/255.0, 1.0, 0, 0, "check object interface[1]");
510 is_fcolor4($fcolors[2], 128.0/255.0, 1.0, 0, 0, "check object interface[2]");
511 is_fcolor4($fcolors[3], 128.0/255.0, 1.0, 0, 0, "check object interface[3]");
514 { # check the channel mask function
516 my $im = Imager->new(xsize => 10, ysize=>10, bits=>8);
518 mask_tests($im, 0.005);
521 { # check bounds checking
522 my $im = Imager->new(xsize => 10, ysize => 10);
524 image_bounds_checks($im);
528 my ($im, $color, $expected) = @_;
529 my $index = Imager::i_addcolors($im, $color);
530 ok($index, "got index");
532 is(0+$index, $expected, "index matched expected");
533 my ($new) = Imager::i_getcolors($im, $index);
534 ok($new, "got the color");
535 ok(color_cmp($new, $color) == 0, "color matched what was added");
541 # my ($a1, $a2) = @_;
542 # my $len = @$a1 < @$a2 ? @$a1 : @$a2;
543 # for my $i (0..$len-1) {
544 # my $diff = $a1->[$i] <=> $a2->[$i]
547 # return @$a1 <=> @$a2;
552 print "# ", map(sprintf("%02X", $_), ($col->rgba)[0..2]),"\n";