3 use Test::More tests => 104;
5 BEGIN { use_ok(Imager=>qw(:all :handy)) }
7 init_log("testout/t021sixteen.log", 1);
9 use Imager::Color::Float;
10 use Imager::Test qw(test_image is_image image_bounds_checks test_colorf_gpix
11 test_colorf_glin mask_tests is_color3);
13 my $im_g = Imager::i_img_16_new(100, 101, 1);
15 is(Imager::i_img_getchannels($im_g), 1, "1 channel image channel count");
16 ok(Imager::i_img_getmask($im_g) & 1, "1 channel image mask");
17 ok(!Imager::i_img_virtual($im_g), "shouldn't be marked virtual");
18 is(Imager::i_img_bits($im_g), 16, "1 channel image has bits == 16");
19 is(Imager::i_img_type($im_g), 0, "1 channel image isn't direct");
21 my @ginfo = i_img_info($im_g);
22 is($ginfo[0], 100, "1 channel image width");
23 is($ginfo[1], 101, "1 channel image height");
27 my $im_rgb = Imager::i_img_16_new(100, 101, 3);
29 is(Imager::i_img_getchannels($im_rgb), 3, "3 channel image channel count");
30 ok((Imager::i_img_getmask($im_rgb) & 7) == 7, "3 channel image mask");
31 is(Imager::i_img_bits($im_rgb), 16, "3 channel image bits");
32 is(Imager::i_img_type($im_rgb), 0, "3 channel image type");
34 my $redf = NCF(1, 0, 0);
35 my $greenf = NCF(0, 1, 0);
36 my $bluef = NCF(0, 0, 1);
40 Imager::i_plinf($im_rgb, 0, $y, ($redf) x 100);
42 pass("fill with red");
44 test_colorf_gpix($im_rgb, 0, 0, $redf, 0, "top-left");
45 test_colorf_gpix($im_rgb, 99, 0, $redf, 0, "top-right");
46 test_colorf_gpix($im_rgb, 0, 100, $redf, 0, "bottom left");
47 test_colorf_gpix($im_rgb, 99, 100, $redf, 0, "bottom right");
48 test_colorf_glin($im_rgb, 0, 0, [ ($redf) x 100 ], "first line");
49 test_colorf_glin($im_rgb, 0, 100, [ ($redf) x 100 ], "last line");
51 Imager::i_plinf($im_rgb, 20, 1, ($greenf) x 60);
52 test_colorf_glin($im_rgb, 0, 1,
53 [ ($redf) x 20, ($greenf) x 60, ($redf) x 20 ],
54 "added some green in the middle");
57 is(Imager::i_gsamp_bits($im_rgb, 18, 22, 1, 16, \@samples, 0, 0 .. 2), 12,
58 "i_gsamp_bits all channels - count")
59 or print "# ", Imager->_error_as_msg(), "\n";
60 is_deeply(\@samples, [ 65535, 0, 0, 65535, 0, 0,
61 0, 65535, 0, 0, 65535, 0 ],
62 "check samples retrieved");
64 is(Imager::i_gsamp_bits($im_rgb, 18, 22, 1, 16, \@samples, 0, 0, 2), 8,
65 "i_gsamp_bits some channels - count")
66 or print "# ", Imager->_error_as_msg(), "\n";
67 is_deeply(\@samples, [ 65535, 0, 65535, 0,
69 "check samples retrieved");
71 is(Imager::i_gsamp_bits($im_rgb, 18, 22, 1, 16, \@samples, 0, 0, 3), undef,
72 "i_gsamp_bits fail bad channel");
73 is(Imager->_error_as_msg(), 'No channel 3 in this image', 'check message');
75 is(Imager::i_gsamp_bits($im_rgb, 18, 22, 1, 17, \@samples, 0, 0, 2), 8,
76 "i_gsamp_bits succeed high bits");
77 is($samples[0], 131071, "check correct with high bits");
79 # write some samples back
87 is(Imager::i_psamp_bits($im_rgb, 18, 2, 16, [ 0 .. 2 ], \@wr_samples),
88 12, "write 16-bit samples")
89 or print "# ", Imager->_error_as_msg(), "\n";
91 is(Imager::i_gsamp_bits($im_rgb, 18, 22, 2, 16, \@samples, 0, 0 .. 2), 12,
93 or print "# ", Imager->_error_as_msg(), "\n";
94 is_deeply(\@samples, \@wr_samples, "check they match");
95 my $c = Imager::i_get_pixel($im_rgb, 18, 2);
96 is_color3($c, 0, 0, 255, "check it write to the right places");
100 my $oo16img = Imager->new(xsize=>200, ysize=>201, bits=>16);
101 ok($oo16img, "make a 16-bit oo image");
102 is($oo16img->bits, 16, "test bits");
103 isnt($oo16img->is_bilevel, "should not be considered mono");
104 # make sure of error handling
105 ok(!Imager->new(xsize=>0, ysize=>1, bits=>16),
106 "fail to create a 0 pixel wide image");
107 cmp_ok(Imager->errstr, '=~', qr/Image sizes must be positive/,
108 "and correct error message");
110 ok(!Imager->new(xsize=>1, ysize=>0, bits=>16),
111 "fail to create a 0 pixel high image");
112 cmp_ok(Imager->errstr, '=~', qr/Image sizes must be positive/,
113 "and correct error message");
115 ok(!Imager->new(xsize=>-1, ysize=>1, bits=>16),
116 "fail to create a negative width image");
117 cmp_ok(Imager->errstr, '=~', qr/Image sizes must be positive/,
118 "and correct error message");
120 ok(!Imager->new(xsize=>1, ysize=>-1, bits=>16),
121 "fail to create a negative height image");
122 cmp_ok(Imager->errstr, '=~', qr/Image sizes must be positive/,
123 "and correct error message");
125 ok(!Imager->new(xsize=>-1, ysize=>-1, bits=>16),
126 "fail to create a negative width/height image");
127 cmp_ok(Imager->errstr, '=~', qr/Image sizes must be positive/,
128 "and correct error message");
130 ok(!Imager->new(xsize=>1, ysize=>1, bits=>16, channels=>0),
131 "fail to create a zero channel image");
132 cmp_ok(Imager->errstr, '=~', qr/channels must be between 1 and 4/,
133 "and correct error message");
134 ok(!Imager->new(xsize=>1, ysize=>1, bits=>16, channels=>5),
135 "fail to create a five channel image");
136 cmp_ok(Imager->errstr, '=~', qr/channels must be between 1 and 4/,
137 "and correct error message");
140 # https://rt.cpan.org/Ticket/Display.html?id=8213
141 # check for handling of memory allocation of very large images
142 # only test this on 32-bit machines - on a 64-bit machine it may
143 # result in trying to allocate 4Gb of memory, which is unfriendly at
144 # least and may result in running out of memory, causing a different
148 $Config{intsize} == 4
149 or skip("don't want to allocate 4Gb", 8);
150 my $uint_range = 256 ** $Config{intsize};
151 print "# range $uint_range\n";
152 my $dim1 = int(sqrt($uint_range/2))+1;
154 my $im_b = Imager->new(xsize=>$dim1, ysize=>$dim1, channels=>1, bits=>16);
155 is($im_b, undef, "integer overflow check - 1 channel");
157 $im_b = Imager->new(xisze=>$dim1, ysize=>1, channels=>1, bits=>16);
158 ok($im_b, "but same width ok");
159 $im_b = Imager->new(xisze=>1, ysize=>$dim1, channels=>1, bits=>16);
160 ok($im_b, "but same height ok");
161 cmp_ok(Imager->errstr, '=~', qr/integer overflow/,
162 "check the error message");
164 # do a similar test with a 3 channel image, so we're sure we catch
165 # the same case where the third dimension causes the overflow
166 my $dim3 = int(sqrt($uint_range / 3 / 2))+1;
168 $im_b = Imager->new(xsize=>$dim3, ysize=>$dim3, channels=>3, bits=>16);
169 is($im_b, undef, "integer overflow check - 3 channel");
171 $im_b = Imager->new(xisze=>$dim3, ysize=>1, channels=>3, bits=>16);
172 ok($im_b, "but same width ok");
173 $im_b = Imager->new(xisze=>1, ysize=>$dim3, channels=>3, bits=>16);
174 ok($im_b, "but same height ok");
176 cmp_ok(Imager->errstr, '=~', qr/integer overflow/,
177 "check the error message");
179 # check we can allocate a scanline, unlike double images the scanline
180 # in the image itself is smaller than a line of i_fcolor
181 # divide by 2 to get to int range, by 2 for 2 bytes/pixel, by 3 to
182 # fit the image allocation in, but for the floats to overflow
183 my $dim4 = $uint_range / 2 / 2 / 3;
184 my $im_o = Imager->new(xsize=>$dim4, ysize=>1, channels=>1, bits=>16);
185 is($im_o, undef, "integer overflow check - scanline");
186 cmp_ok(Imager->errstr, '=~',
187 qr/integer overflow calculating scanline allocation/,
188 "check error message");
192 { # check the channel mask function
194 my $im = Imager->new(xsize => 10, ysize=>10, bits=>16);
196 mask_tests($im, 1.0/65535);
200 my $im = test_image();
201 my $im16 = $im->to_rgb16;
202 print "# check conversion to 16 bit\n";
203 is($im16->bits, 16, "check bits");
204 is_image($im, $im16, "check image data matches");
208 my $im = Imager->new(xsize => 10, ysize => 10, bits => 16);
209 image_bounds_checks($im);
213 my $im = Imager->new(xsize => 10, ysize => 10, bits => 16, channels => 3);
214 my @wr_samples = map int(rand 65536), 1..30;
215 is($im->setsamples('y' => 1, data => \@wr_samples, type => '16bit'),
216 30, "write 16-bit to OO image")
217 or print "# ", $im->errstr, "\n";
219 is($im->getsamples(y => 1, target => \@samples, type => '16bit'),
220 30, "read 16-bit from OO image")
221 or print "# ", $im->errstr, "\n";
222 is_deeply(\@wr_samples, \@samples, "check it matches");