4 use Test::More tests => 89;
6 init_log("testout/t107bmp.log",1);
7 #BEGIN { require 't/testtools.pl'; } # BEGIN to apply prototypes
10 # if you change this make sure you generate new compressed versions
11 my $green=i_color_new(0,255,0,255);
12 my $blue=i_color_new(0,0,255,255);
13 my $red=i_color_new(255,0,0,255);
15 my $img=Imager::ImgRaw::new(150,150,3);
17 i_box_filled($img,70,25,130,125,$green);
18 i_box_filled($img,20,25,80,125,$blue);
19 i_arc($img,75,75,30,0,361,$red);
20 i_conv($img,[0.1, 0.2, 0.4, 0.2, 0.1]);
22 Imager::i_tags_add($img, 'i_xres', 0, '300', 0);
23 Imager::i_tags_add($img, 'i_yres', 0, undef, 300);
24 write_test($img, "testout/t107_24bit.bmp");
25 # 'webmap' is noticably faster than the default
26 my $im8 = Imager::i_img_to_pal($img, { make_colors=>'webmap',
27 translate=>'errdiff'});
28 write_test($im8, "testout/t107_8bit.bmp");
29 # use a fixed palette so we get reproducible results for the compressed
31 my @pal16 = map { NC($_) }
32 qw(605844 966600 0148b2 00f800 bf0a33 5e009e
33 2ead1b 0000f8 004b01 fd0000 0e1695 000002);
34 my $im4 = Imager::i_img_to_pal($img, { colors=>\@pal16, make_colors=>'none' });
35 write_test($im4, "testout/t107_4bit.bmp");
36 my $im1 = Imager::i_img_to_pal($img, { colors=>[ NC(0, 0, 0), NC(176, 160, 144) ],
37 make_colors=>'none', translate=>'errdiff' });
38 write_test($im1, "testout/t107_1bit.bmp");
43 read_test("testout/t107_24bit.bmp", $img,
44 bmp_compression=>0, bmp_bit_count => 24);
45 read_test("testout/t107_8bit.bmp", $im8,
46 bmp_compression=>0, bmp_bit_count => 8);
47 read_test("testout/t107_4bit.bmp", $im4,
48 bmp_compression=>0, bmp_bit_count => 4);
49 read_test("testout/t107_1bit.bmp", $im1, bmp_compression=>0,
51 # the following might have slight differences
52 $base_diff = i_img_diff($img, $im8) * 2;
53 print "# base difference $base_diff\n";
54 read_test("testimg/comp4.bmp", $im4,
55 bmp_compression=>$bi_rle4, bmp_bit_count => 4);
56 read_test("testimg/comp8.bmp", $im8,
57 bmp_compression=>$bi_rle8, bmp_bit_count => 8);
59 my $imoo = Imager->new;
61 ok($imoo->read(file=>'testout/t107_24bit.bmp'), "read via OO")
62 or print "# ",$imoo->errstr,"\n";
64 ok($imoo->write(file=>'testout/t107_oo.bmp'), "write via OO")
65 or print "# ",$imoo->errstr,"\n";
67 # various invalid format tests
68 # we have so many different test images to try to detect all the possible
69 # failure paths in the code, adding these did detect real problems
70 print "# catch various types of invalid bmp files\n";
73 # entries in each array ref are:
74 # - basename of an invalid BMP file
75 # - error message that should be produced
76 # - description of what is being tested
77 # - possible flag to indicate testing only on 32-bit machines
78 [ 'badplanes.bmp', 'not a BMP file', "invalid planes value" ],
79 [ 'badbits.bmp', 'unknown bit count for BMP file (5)',
80 'should fail to read invalid bits' ],
83 [ 'badused1.bmp', 'out of range colors used (3)',
84 'out of range palette size (1-bit)' ],
85 [ 'badcomp1.bmp', 'unknown 1-bit BMP compression (1)',
86 'invalid compression value (1-bit)' ],
87 [ 'bad1wid0.bmp', 'file size limit - image width of 0 is not positive',
90 'file size limit - integer overflow calculating storage',
91 'overflow integers on 32-bit machines (1-bit)', '32bitonly' ],
92 [ 'short1.bmp', 'failed reading 1-bit bmp data',
96 [ 'badused4a.bmp', 'out of range colors used (272)',
97 'should fail to read invalid pal size (272) (4-bit)' ],
98 [ 'badused4b.bmp', 'out of range colors used (17)',
99 'should fail to read invalid pal size (17) (4-bit)' ],
100 [ 'badcomp4.bmp', 'unknown 4-bit BMP compression (1)',
101 'invalid compression value (4-bit)' ],
102 [ 'short4.bmp', 'failed reading 4-bit bmp data',
103 'short uncompressed 4-bit' ],
104 [ 'short4rle.bmp', 'missing data during decompression',
105 'short compressed 4-bit' ],
106 [ 'bad4wid0.bmp', 'file size limit - image width of 0 is not positive',
108 [ 'bad4widbig.bmp', 'file size limit - image width of -2147483628 is not positive',
109 'width big (4-bit)' ],
110 [ 'bad4oflow.bmp', 'file size limit - integer overflow calculating storage',
111 'overflow integers on 32-bit machines (4-bit)', '32bitonly' ],
114 [ 'bad8useda.bmp', 'out of range colors used (257)',
115 'should fail to read invalid pal size (8-bit)' ],
116 [ 'bad8comp.bmp', 'unknown 8-bit BMP compression (2)',
117 'invalid compression value (8-bit)' ],
118 [ 'short8.bmp', 'failed reading 8-bit bmp data',
119 'short uncompressed 8-bit' ],
120 [ 'short8rle.bmp', 'missing data during decompression',
121 'short compressed 8-bit' ],
122 [ 'bad8wid0.bmp', 'file size limit - image width of 0 is not positive',
124 [ 'bad8oflow.bmp', 'file size limit - integer overflow calculating storage',
125 'overflow integers on 32-bit machines (8-bit)', '32bitonly' ],
128 [ 'short24.bmp', 'failed reading image data',
130 [ 'bad24wid0.bmp', 'file size limit - image width of 0 is not positive',
131 'width 0 (24-bit)' ],
132 [ 'bad24oflow.bmp', 'file size limit - integer overflow calculating storage',
133 'overflow integers on 32-bit machines (24-bit)', '32bitonly' ],
134 [ 'bad24comp.bmp', 'unknown 24-bit BMP compression (4)',
135 'bad compression (24-bit)' ],
138 my $intsize = $Config{intsize};
139 for my $test (@tests) {
140 my ($file, $error, $comment, $bit32only) = @$test;
143 skip("only tested on 32-bit machines", 2)
144 if $bit32only && $intsize != 4;
145 ok(!$imoo->read(file=>"testimg/$file"), $comment);
146 is($imoo->errstr, $error, "check error message");
150 # previously we didn't seek to the offbits position before reading
151 # the image data, check we handle it correctly
152 # in each case the first is an original image with a given number of
153 # bits and the second is the same file with data inserted before the
154 # image bits and the offset modified to suit
157 [ 'winrgb2.bmp', 'winrgb2off.bmp', 1 ],
158 [ 'winrgb4.bmp', 'winrgb4off.bmp', 4 ],
159 [ 'winrgb8.bmp', 'winrgb8off.bmp', 8 ],
160 [ 'winrgb24.bmp', 'winrgb24off.bmp', 24 ],
163 for my $comp (@comp) {
164 my ($base_file, $off_file, $bits) = @$comp;
166 my $base_im = Imager->new;
168 ok($base_im->read(file=>"testimg/$base_file"),
170 or print "# ",$base_im->errstr,"\n";
171 my $off_im = Imager->new;
173 ok($off_im->read(file=>"testimg/$off_file"),
175 or print "# ",$off_im->errstr,"\n";
178 skip("missed one file", 1)
179 unless $got_base && $got_off;
180 is(i_img_diff($base_im->{IMG}, $off_im->{IMG}), 0,
181 "compare base and offset image ($bits bits)");
185 { # check file limits are checked
186 my $limit_file = "testout/t104.ppm";
187 ok(Imager->set_file_limits(reset=>1, width=>149), "set width limit 149");
188 my $im = Imager->new;
189 ok(!$im->read(file=>$limit_file),
190 "should fail read due to size limits");
191 print "# ",$im->errstr,"\n";
192 like($im->errstr, qr/image width/, "check message");
194 ok(Imager->set_file_limits(reset=>1, height=>149), "set height limit 149");
195 ok(!$im->read(file=>$limit_file),
196 "should fail read due to size limits");
197 print "# ",$im->errstr,"\n";
198 like($im->errstr, qr/image height/, "check message");
200 ok(Imager->set_file_limits(reset=>1, width=>150), "set width limit 150");
201 ok($im->read(file=>$limit_file),
202 "should succeed - just inside width limit");
203 ok(Imager->set_file_limits(reset=>1, height=>150), "set height limit 150");
204 ok($im->read(file=>$limit_file),
205 "should succeed - just inside height limit");
207 # 150 x 150 x 3 channel image uses 67500 bytes
208 ok(Imager->set_file_limits(reset=>1, bytes=>67499),
209 "set bytes limit 67499");
210 ok(!$im->read(file=>$limit_file),
211 "should fail - too many bytes");
212 print "# ",$im->errstr,"\n";
213 like($im->errstr, qr/storage size/, "check error message");
214 ok(Imager->set_file_limits(reset=>1, bytes=>67500),
215 "set bytes limit 67500");
216 ok($im->read(file=>$limit_file),
217 "should succeed - just inside bytes limit");
218 Imager->set_file_limits(reset=>1);
222 my ($im, $filename) = @_;
225 if (open FH, "> $filename") {
227 my $IO = Imager::io_new_fd(fileno(FH));
228 unless (ok(Imager::i_writebmp_wiol($im, $IO), $filename)) {
229 print "# ",Imager->_error_as_msg(),"\n";
235 fail("could not open $filename: $!");
240 my ($filename, $im, %tags) = @_;
243 print "# read_test: $filename\n";
245 $tags{i_format} = "bmp";
247 if (open FH, "< $filename") {
249 my $IO = Imager::io_new_fd(fileno(FH));
250 my $im_read = Imager::i_readbmp_wiol($IO);
252 my $diff = i_img_diff($im, $im_read);
253 if ($diff > $base_diff) {
254 fail("image mismatch reading $filename");
258 for my $tag (keys %tags) {
259 if (my $index = Imager::i_tags_find($im_read, $tag, 0)) {
260 my ($name, $value) = Imager::i_tags_get($im_read, $index);
261 my $exp_value = $tags{$tag};
262 print "# tag $name = '$value' - expect '$exp_value'\n";
263 if ($exp_value =~ /\d/) {
264 if ($value != $tags{$tag}) {
265 print "# tag $tag value mismatch $tags{$tag} != $value\n";
270 if ($value ne $tags{$tag}) {
271 print "# tag $tag value mismatch $tags{$tag} != $value\n";
277 ok($tags_ok, "reading $filename");
278 # for my $i (0 .. Imager::i_tags_count($im_read)-1) {
279 # my ($name, $value) = Imager::i_tags_get($im_read, $i);
280 # print "# tag '$name' => '$value'\n";
285 fail("could not read $filename: ".Imager->_error_as_msg());
291 fail("could not open $filename: $!");