3 use Test::More tests => 85;
5 BEGIN { use_ok(Imager=>qw(:all :handy)) }
7 init_log("testout/t021sixteen.log", 1);
9 require "t/testtools.pl";
11 use Imager::Color::Float;
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, $redf);
45 test_colorf_gpix($im_rgb, 99, 0, $redf);
46 test_colorf_gpix($im_rgb, 0, 100, $redf);
47 test_colorf_gpix($im_rgb, 99, 100, $redf);
48 test_colorf_glin($im_rgb, 0, 0, ($redf) x 100);
49 test_colorf_glin($im_rgb, 0, 100, ($redf) x 100);
51 Imager::i_plinf($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);
56 my $oo16img = Imager->new(xsize=>200, ysize=>201, bits=>16);
57 ok($oo16img, "make a 16-bit oo image");
58 is($oo16img->bits, 16, "test bits");
60 # make sure of error handling
61 ok(!Imager->new(xsize=>0, ysize=>1, bits=>16),
62 "fail to create a 0 pixel wide image");
63 cmp_ok(Imager->errstr, '=~', qr/Image sizes must be positive/,
64 "and correct error message");
66 ok(!Imager->new(xsize=>1, ysize=>0, bits=>16),
67 "fail to create a 0 pixel high image");
68 cmp_ok(Imager->errstr, '=~', qr/Image sizes must be positive/,
69 "and correct error message");
71 ok(!Imager->new(xsize=>-1, ysize=>1, bits=>16),
72 "fail to create a negative width image");
73 cmp_ok(Imager->errstr, '=~', qr/Image sizes must be positive/,
74 "and correct error message");
76 ok(!Imager->new(xsize=>1, ysize=>-1, bits=>16),
77 "fail to create a negative height image");
78 cmp_ok(Imager->errstr, '=~', qr/Image sizes must be positive/,
79 "and correct error message");
81 ok(!Imager->new(xsize=>-1, ysize=>-1, bits=>16),
82 "fail to create a negative width/height image");
83 cmp_ok(Imager->errstr, '=~', qr/Image sizes must be positive/,
84 "and correct error message");
86 ok(!Imager->new(xsize=>1, ysize=>1, bits=>16, channels=>0),
87 "fail to create a zero channel image");
88 cmp_ok(Imager->errstr, '=~', qr/channels must be between 1 and 4/,
89 "and correct error message");
90 ok(!Imager->new(xsize=>1, ysize=>1, bits=>16, channels=>5),
91 "fail to create a five channel image");
92 cmp_ok(Imager->errstr, '=~', qr/channels must be between 1 and 4/,
93 "and correct error message");
96 # https://rt.cpan.org/Ticket/Display.html?id=8213
97 # check for handling of memory allocation of very large images
98 # only test this on 32-bit machines - on a 64-bit machine it may
99 # result in trying to allocate 4Gb of memory, which is unfriendly at
100 # least and may result in running out of memory, causing a different
104 $Config{intsize} == 4
105 or skip("don't want to allocate 4Gb", 8);
106 my $uint_range = 256 ** $Config{intsize};
107 print "# range $uint_range\n";
108 my $dim1 = int(sqrt($uint_range/2))+1;
110 my $im_b = Imager->new(xsize=>$dim1, ysize=>$dim1, channels=>1, bits=>16);
111 is($im_b, undef, "integer overflow check - 1 channel");
113 $im_b = Imager->new(xisze=>$dim1, ysize=>1, channels=>1, bits=>16);
114 ok($im_b, "but same width ok");
115 $im_b = Imager->new(xisze=>1, ysize=>$dim1, channels=>1, bits=>16);
116 ok($im_b, "but same height ok");
117 cmp_ok(Imager->errstr, '=~', qr/integer overflow/,
118 "check the error message");
120 # do a similar test with a 3 channel image, so we're sure we catch
121 # the same case where the third dimension causes the overflow
122 my $dim3 = int(sqrt($uint_range / 3 / 2))+1;
124 $im_b = Imager->new(xsize=>$dim3, ysize=>$dim3, channels=>3, bits=>16);
125 is($im_b, undef, "integer overflow check - 3 channel");
127 $im_b = Imager->new(xisze=>$dim3, ysize=>1, channels=>3, bits=>16);
128 ok($im_b, "but same width ok");
129 $im_b = Imager->new(xisze=>1, ysize=>$dim3, channels=>3, bits=>16);
130 ok($im_b, "but same height ok");
132 cmp_ok(Imager->errstr, '=~', qr/integer overflow/,
133 "check the error message");
135 # check we can allocate a scanline, unlike double images the scanline
136 # in the image itself is smaller than a line of i_fcolor
137 # divide by 2 to get to int range, by 2 for 2 bytes/pixel, by 3 to
138 # fit the image allocation in, but for the floats to overflow
139 my $dim4 = $uint_range / 2 / 2 / 3;
140 my $im_o = Imager->new(xsize=>$dim4, ysize=>1, channels=>1, bits=>16);
141 is($im_o, undef, "integer overflow check - scanline");
142 cmp_ok(Imager->errstr, '=~',
143 qr/integer overflow calculating scanline allocation/,
144 "check error message");
148 { # check the channel mask function
150 my $im = Imager->new(xsize => 10, ysize=>10, bits=>16);
152 mask_tests($im, 1.0/65535);