+#!perl -w
use Imager ':all';
-
-print "1..6\n";
+use Test::More tests => 143;
+use strict;
+use Imager::Test qw(test_image_raw test_image_16 is_color3 is_color1 is_image);
init_log("testout/t104ppm.log",1);
-$green=i_color_new(0,255,0,255);
-$blue=i_color_new(0,0,255,255);
-$red=i_color_new(255,0,0,255);
-
-$img=Imager::ImgRaw::new(150,150,3);
-$cmpimg=Imager::ImgRaw::new(150,150,3);
-
-i_box_filled($img,70,25,130,125,$green);
-i_box_filled($img,20,25,80,125,$blue);
-i_arc($img,75,75,30,0,361,$red);
-i_conv($img,[0.1, 0.2, 0.4, 0.2, 0.1]);
-
-my $timg = Imager::ImgRaw::new(20, 20, 4);
-my $trans = i_color_new(255, 0, 0, 127);
-i_box_filled($timg, 0, 0, 20, 20, $green);
-i_box_filled($timg, 2, 2, 18, 18, $trans);
+my $green = i_color_new(0,255,0,255);
+my $blue = i_color_new(0,0,255,255);
+my $red = i_color_new(255,0,0,255);
-open(FH,">testout/t104.ppm") || die "Cannot open testout/t104.ppm\n";
-binmode(FH);
-i_writeppm($img,fileno(FH)) || die "Cannot write testout/t104.ppm\n";
-close(FH);
+my $img = test_image_raw();
-print "ok 1\n";
+my $fh = openimage(">testout/t104.ppm");
+my $IO = Imager::io_new_fd(fileno($fh));
+ok(i_writeppm_wiol($img, $IO), "write pnm low")
+ or die "Cannot write testout/t104.ppm\n";
+close($fh);
-open(FH,"testout/t104.ppm") || die "Cannot open testout/t104.ppm\n";
-binmode(FH);
+$IO = Imager::io_new_bufchain();
+ok(i_writeppm_wiol($img, $IO), "write to bufchain")
+ or die "Cannot write to bufchain";
+my $data = Imager::io_slurp($IO);
-my $IO = Imager::io_new_fd(fileno(FH));
-$cmpimg=i_readpnm_wiol($IO,-1) || die "Cannot read testout/t104.ppm\n";
-close(FH);
+$fh = openimage("testout/t104.ppm");
+$IO = Imager::io_new_fd( fileno($fh) );
+my $cmpimg = i_readpnm_wiol($IO,-1);
+ok($cmpimg, "read image we wrote")
+ or die "Cannot read testout/t104.ppm\n";
+close($fh);
-print "ok 2\n";
+is(i_img_diff($img, $cmpimg), 0, "compare written and read images");
-print i_img_diff($img, $cmpimg)
- ? "not ok 3 # saved image different\n" : "ok 3\n";
+my $rdata = slurp("testout/t104.ppm");
+is($data, $rdata, "check data read from file and bufchain data");
# build a grayscale image
my $gimg = Imager::ImgRaw::new(150, 150, 1);
-my $gray = i_color_new(128, 0, 0);
-my $dgray = i_color_new(64, 0, 0);
-my $white = i_color_new(255, 0, 0);
+my $gray = i_color_new(128, 0, 0, 255);
+my $dgray = i_color_new(64, 0, 0, 255);
+my $white = i_color_new(255, 0, 0, 255);
i_box_filled($gimg, 20, 20, 130, 130, $gray);
i_box_filled($gimg, 40, 40, 110, 110, $dgray);
i_arc($gimg, 75, 75, 30, 0, 361, $white);
-open FH, "> testout/t104_gray.pgm"
- or die "Cannot create testout/t104_gray.pgm: $!\n";
+
+open FH, "> testout/t104_gray.pgm" or die "Cannot create testout/t104_gray.pgm: $!\n";
binmode FH;
-i_writeppm($gimg, fileno(FH))
- or print "not ";
-print "ok 4\n";
+$IO = Imager::io_new_fd(fileno(FH));
+ok(i_writeppm_wiol($gimg, $IO), "write grayscale");
close FH;
-open FH, "< testout/t104_gray.pgm"
- or die "Cannot open testout/t104_gray.pgm: $!\n";
+
+open FH, "< testout/t104_gray.pgm" or die "Cannot open testout/t104_gray.pgm: $!\n";
binmode FH;
$IO = Imager::io_new_fd(fileno(FH));
-my $gcmpimg = i_readpnm_wiol($IO, -1)
- or print "not ";
-print "ok 5\n";
-i_img_diff($gimg, $gcmpimg) == 0 or print "not ";
-print "ok 6\n";
+my $gcmpimg = i_readpnm_wiol($IO, -1);
+ok($gcmpimg, "read grayscale");
+is(i_img_diff($gimg, $gcmpimg), 0,
+ "compare written and read greyscale images");
+
+my $ooim = Imager->new;
+ok($ooim->read(file=>"testimg/simple.pbm"), "read simple pbm, via OO");
+
+check_gray(Imager::i_get_pixel($ooim->{IMG}, 0, 0), 0);
+check_gray(Imager::i_get_pixel($ooim->{IMG}, 0, 1), 255);
+check_gray(Imager::i_get_pixel($ooim->{IMG}, 1, 0), 255);
+check_gray(Imager::i_get_pixel($ooim->{IMG}, 1, 1), 0);
+is($ooim->type, 'paletted', "check pbm read as paletted");
+is($ooim->tags(name=>'pnm_type'), 1, "check pnm_type tag");
+
+{
+ # https://rt.cpan.org/Ticket/Display.html?id=7465
+ # the pnm reader ignores the maxval that it reads from the pnm file
+ my $maxval = Imager->new;
+ ok($maxval->read(file=>"testimg/maxval.ppm"),
+ "read testimg/maxval.ppm");
+
+ # this image contains three pixels, with each sample from 0 to 63
+ # the pixels are (63, 63, 63), (32, 32, 32) and (31, 31, 0)
+
+ # check basic parameters
+ is($maxval->getchannels, 3, "channel count");
+ is($maxval->getwidth, 3, "width");
+ is($maxval->getheight, 1, "height");
+
+ # check the pixels
+ ok(my ($white, $grey, $green) = $maxval->getpixel('x'=>[0,1,2], 'y'=>[0,0,0]), "fetch pixels");
+ is_color3($white, 255, 255, 255, "white pixel");
+ is_color3($grey, 130, 130, 130, "grey pixel");
+ is_color3($green, 125, 125, 0, "green pixel");
+ is($maxval->tags(name=>'pnm_type'), 6, "check pnm_type tag on maxval");
+
+ # and do the same for ASCII images
+ my $maxval_asc = Imager->new;
+ ok($maxval_asc->read(file=>"testimg/maxval_asc.ppm"),
+ "read testimg/maxval_asc.ppm");
+
+ # this image contains three pixels, with each sample from 0 to 63
+ # the pixels are (63, 63, 63), (32, 32, 32) and (31, 31, 0)
+
+ # check basic parameters
+ is($maxval_asc->getchannels, 3, "channel count");
+ is($maxval_asc->getwidth, 3, "width");
+ is($maxval_asc->getheight, 1, "height");
+
+ is($maxval->tags(name=>'pnm_type'), 6, "check pnm_type tag on maxval");
+
+ # check the pixels
+ ok(my ($white_asc, $grey_asc, $green_asc) = $maxval_asc->getpixel('x'=>[0,1,2], 'y'=>[0,0,0]), "fetch pixels");
+ is_color3($white_asc, 255, 255, 255, "white asc pixel");
+ is_color3($grey_asc, 130, 130, 130, "grey asc pixel");
+ is_color3($green_asc, 125, 125, 0, "green asc pixel");
+}
+
+{ # previously we didn't validate maxval at all, make sure it's
+ # validated now
+ my $maxval0 = Imager->new;
+ ok(!$maxval0->read(file=>'testimg/maxval_0.ppm'),
+ "should fail to read maxval 0 image");
+ print "# ", $maxval0->errstr, "\n";
+ like($maxval0->errstr, qr/maxval is zero - invalid pnm file/,
+ "error expected from reading maxval_0.ppm");
+
+ my $maxval65536 = Imager->new;
+ ok(!$maxval65536->read(file=>'testimg/maxval_65536.ppm'),
+ "should fail reading maxval 65536 image");
+ print "# ",$maxval65536->errstr, "\n";
+ like($maxval65536->errstr, qr/maxval of 65536 is over 65535 - invalid pnm file/,
+ "error expected from reading maxval_65536.ppm");
+
+ # maxval of 256 is valid, and handled as of 0.56
+ my $maxval256 = Imager->new;
+ ok($maxval256->read(file=>'testimg/maxval_256.ppm'),
+ "should succeed reading maxval 256 image");
+ is_color3($maxval256->getpixel(x => 0, 'y' => 0),
+ 0, 0, 0, "check black in maxval_256");
+ is_color3($maxval256->getpixel(x => 0, 'y' => 1),
+ 255, 255, 255, "check white in maxval_256");
+ is($maxval256->bits, 16, "check bits/sample on maxval 256");
+
+ # make sure we handle maxval > 255 for ascii
+ my $maxval4095asc = Imager->new;
+ ok($maxval4095asc->read(file=>'testimg/maxval_4095_asc.ppm'),
+ "read maxval_4095_asc.ppm");
+ is($maxval4095asc->getchannels, 3, "channels");
+ is($maxval4095asc->getwidth, 3, "width");
+ is($maxval4095asc->getheight, 1, "height");
+ is($maxval4095asc->bits, 16, "check bits/sample on maxval 4095");
+
+ ok(my ($white, $grey, $green) = $maxval4095asc->getpixel('x'=>[0,1,2], 'y'=>[0,0,0]), "fetch pixels");
+ is_color3($white, 255, 255, 255, "white 4095 pixel");
+ is_color3($grey, 128, 128, 128, "grey 4095 pixel");
+ is_color3($green, 127, 127, 0, "green 4095 pixel");
+}
+
+{ # check i_format is set when reading a pnm file
+ # doesn't really matter which file.
+ my $maxval = Imager->new;
+ ok($maxval->read(file=>"testimg/maxval.ppm"),
+ "read test file");
+ my ($type) = $maxval->tags(name=>'i_format');
+ is($type, 'pnm', "check i_format");
+}
+
+{ # check file limits are checked
+ my $limit_file = "testout/t104.ppm";
+ ok(Imager->set_file_limits(reset=>1, width=>149), "set width limit 149");
+ my $im = Imager->new;
+ ok(!$im->read(file=>$limit_file),
+ "should fail read due to size limits");
+ print "# ",$im->errstr,"\n";
+ like($im->errstr, qr/image width/, "check message");
+
+ ok(Imager->set_file_limits(reset=>1, height=>149), "set height limit 149");
+ ok(!$im->read(file=>$limit_file),
+ "should fail read due to size limits");
+ print "# ",$im->errstr,"\n";
+ like($im->errstr, qr/image height/, "check message");
+
+ ok(Imager->set_file_limits(reset=>1, width=>150), "set width limit 150");
+ ok($im->read(file=>$limit_file),
+ "should succeed - just inside width limit");
+ ok(Imager->set_file_limits(reset=>1, height=>150), "set height limit 150");
+ ok($im->read(file=>$limit_file),
+ "should succeed - just inside height limit");
+
+ # 150 x 150 x 3 channel image uses 67500 bytes
+ ok(Imager->set_file_limits(reset=>1, bytes=>67499),
+ "set bytes limit 67499");
+ ok(!$im->read(file=>$limit_file),
+ "should fail - too many bytes");
+ print "# ",$im->errstr,"\n";
+ like($im->errstr, qr/storage size/, "check error message");
+ ok(Imager->set_file_limits(reset=>1, bytes=>67500),
+ "set bytes limit 67500");
+ ok($im->read(file=>$limit_file),
+ "should succeed - just inside bytes limit");
+ Imager->set_file_limits(reset=>1);
+}
+
+{
+ # check we correctly sync with the data stream
+ my $im = Imager->new;
+ ok($im->read(file => 'testimg/pgm.pgm', type => 'pnm'),
+ "read pgm.pgm");
+ print "# ", $im->getsamples('y' => 0), "\n";
+ is_color1($im->getpixel(x=>0, 'y' => 0), 254, "check top left");
+}
+
+{ # check error messages set correctly
+ my $im = Imager->new(xsize=>100, ysize=>100, channels=>4);
+ ok(!$im->write(file=>"testout/t104_fail.ppm", type=>'pnm'),
+ "should fail to write 4 channel image");
+ is($im->errstr, 'can only save 1 or 3 channel images to pnm',
+ "check error message");
+ ok(!$im->read(file=>'t/t104ppm.t', type=>'pnm'),
+ 'should fail to read script as an image file');
+ is($im->errstr, 'unable to read pnm image: bad header magic, not a PNM file',
+ "check error message");
+}
+
+# various bad input files
+print "# check error handling\n";
+{
+ my $im = Imager->new;
+ ok(!$im->read(file => 'testimg/short_bin.ppm', type=>'pnm'),
+ "fail to read short bin ppm");
+ cmp_ok($im->errstr, '=~', 'short read - file truncated',
+ "check error message");
+}
+
+{
+ my $im = Imager->new;
+ ok(!$im->read(file => 'testimg/short_bin16.ppm', type=>'pnm'),
+ "fail to read short bin ppm (maxval 65535)");
+ cmp_ok($im->errstr, '=~', 'short read - file truncated',
+ "check error message");
+}
+
+{
+ my $im = Imager->new;
+ ok(!$im->read(file => 'testimg/short_bin.pgm', type=>'pnm'),
+ "fail to read short bin pgm");
+ cmp_ok($im->errstr, '=~', 'short read - file truncated',
+ "check error message");
+}
+
+{
+ my $im = Imager->new;
+ ok(!$im->read(file => 'testimg/short_bin16.pgm', type=>'pnm'),
+ "fail to read short bin pgm (maxval 65535)");
+ cmp_ok($im->errstr, '=~', 'short read - file truncated',
+ "check error message");
+}
+
+{
+ my $im = Imager->new;
+ ok(!$im->read(file => 'testimg/short_bin.pbm', type => 'pnm'),
+ "fail to read a short bin pbm");
+ cmp_ok($im->errstr, '=~', 'short read - file truncated',
+ "check error message");
+}
+
+{
+ my $im = Imager->new;
+ ok(!$im->read(file => 'testimg/short_asc.ppm', type => 'pnm'),
+ "fail to read a short asc ppm");
+ cmp_ok($im->errstr, '=~', 'short read - file truncated',
+ "check error message");
+}
+
+{
+ my $im = Imager->new;
+ ok(!$im->read(file => 'testimg/short_asc.pgm', type => 'pnm'),
+ "fail to read a short asc pgm");
+ cmp_ok($im->errstr, '=~', 'short read - file truncated',
+ "check error message");
+}
+
+{
+ my $im = Imager->new;
+ ok(!$im->read(file => 'testimg/short_asc.pbm', type => 'pnm'),
+ "fail to read a short asc pbm");
+ cmp_ok($im->errstr, '=~', 'short read - file truncated',
+ "check error message");
+}
+
+{
+ my $im = Imager->new;
+ ok(!$im->read(file => 'testimg/bad_asc.ppm', type => 'pnm'),
+ "fail to read a bad asc ppm");
+ cmp_ok($im->errstr, '=~', 'invalid data for ascii pnm',
+ "check error message");
+}
+
+{
+ my $im = Imager->new;
+ ok(!$im->read(file => 'testimg/bad_asc.pgm', type => 'pnm'),
+ "fail to read a bad asc pgm");
+ cmp_ok($im->errstr, '=~', 'invalid data for ascii pnm',
+ "check error message");
+}
+
+{
+ my $im = Imager->new;
+ ok(!$im->read(file => 'testimg/bad_asc.pbm', type => 'pnm'),
+ "fail to read a bad asc pbm");
+ cmp_ok($im->errstr, '=~', 'invalid data for ascii pnm',
+ "check error message");
+}
+
+{
+ my $im = Imager->new;
+ ok($im->read(file => 'testimg/short_bin.ppm', type => 'pnm',
+ allow_partial => 1),
+ "partial read bin ppm");
+ is($im->tags(name => 'i_incomplete'), 1, "partial flag set");
+ is($im->tags(name => 'i_lines_read'), 1, "lines_read set");
+}
+
+{
+ my $im = Imager->new;
+ ok($im->read(file => 'testimg/short_bin16.ppm', type => 'pnm',
+ allow_partial => 1),
+ "partial read bin16 ppm");
+ is($im->tags(name => 'i_incomplete'), 1, "partial flag set");
+ is($im->tags(name => 'i_lines_read'), 1, "lines_read set");
+ is($im->bits, 16, "check correct bits");
+}
+
+{
+ my $im = Imager->new;
+ ok($im->read(file => 'testimg/short_bin.pgm', type => 'pnm',
+ allow_partial => 1),
+ "partial read bin pgm");
+ is($im->tags(name => 'i_incomplete'), 1, "partial flag set");
+ is($im->tags(name => 'i_lines_read'), 1, "lines_read set");
+}
+
+{
+ my $im = Imager->new;
+ ok($im->read(file => 'testimg/short_bin16.pgm', type => 'pnm',
+ allow_partial => 1),
+ "partial read bin16 pgm");
+ is($im->tags(name => 'i_incomplete'), 1, "partial flag set");
+ is($im->tags(name => 'i_lines_read'), 1, "lines_read set");
+}
+
+{
+ my $im = Imager->new;
+ ok($im->read(file => 'testimg/short_bin.pbm', type => 'pnm',
+ allow_partial => 1),
+ "partial read bin pbm");
+ is($im->tags(name => 'i_incomplete'), 1, "partial flag set");
+ is($im->tags(name => 'i_lines_read'), 1, "lines_read set");
+}
+
+{
+ my $im = Imager->new;
+ ok($im->read(file => 'testimg/short_asc.ppm', type => 'pnm',
+ allow_partial => 1),
+ "partial read asc ppm");
+ is($im->tags(name => 'i_incomplete'), 1, "partial flag set");
+ is($im->tags(name => 'i_lines_read'), 1, "lines_read set");
+}
+
+{
+ my $im = Imager->new;
+ ok($im->read(file => 'testimg/short_asc.pgm', type => 'pnm',
+ allow_partial => 1),
+ "partial read asc pgm");
+ is($im->tags(name => 'i_incomplete'), 1, "partial flag set");
+ is($im->tags(name => 'i_lines_read'), 1, "lines_read set");
+}
+
+{
+ my $im = Imager->new;
+ ok($im->read(file => 'testimg/short_asc.pbm', type => 'pnm',
+ allow_partial => 1),
+ "partial read asc pbm");
+ is($im->tags(name => 'i_incomplete'), 1, "partial flag set");
+ is($im->tags(name => 'i_lines_read'), 1, "lines_read set");
+}
+
+{
+ my $im = Imager->new;
+ ok($im->read(file => 'testimg/bad_asc.ppm', type => 'pnm',
+ allow_partial => 1),
+ "partial read bad asc ppm");
+ is($im->tags(name => 'i_incomplete'), 1, "partial flag set");
+ is($im->tags(name => 'i_lines_read'), 1, "lines_read set");
+}
+
+{
+ my $im = Imager->new;
+ ok($im->read(file => 'testimg/bad_asc.pgm', type => 'pnm',
+ allow_partial => 1),
+ "partial read bad asc pgm");
+ is($im->tags(name => 'i_incomplete'), 1, "partial flag set");
+ is($im->tags(name => 'i_lines_read'), 1, "lines_read set");
+}
+
+{
+ my $im = Imager->new;
+ ok($im->read(file => 'testimg/bad_asc.pbm', type => 'pnm',
+ allow_partial => 1),
+ "partial read bad asc pbm");
+ is($im->tags(name => 'i_incomplete'), 1, "partial flag set");
+ is($im->tags(name => 'i_lines_read'), 1, "lines_read set");
+}
+
+{
+ print "# monochrome output\n";
+ my $im = Imager->new(xsize => 10, ysize => 10, type => 'paletted');
+ ok($im->addcolors(colors => [ '#000000', '#FFFFFF' ]),
+ "add black and white");
+ $im->box(filled => 1, xmax => 4, color => '#000000');
+ $im->box(filled => 1, xmin => 5, color => '#FFFFFF');
+ is($im->type, 'paletted', 'mono still paletted');
+ ok($im->write(file => 'testout/t104_mono.pbm', type => 'pnm'),
+ "save as pbm");
+
+ # check it
+ my $imread = Imager->new;
+ ok($imread->read(file => 'testout/t104_mono.pbm', type=>'pnm'),
+ "read it back in")
+ or print "# ", $imread->errstr, "\n";
+ is($imread->type, 'paletted', "check result is paletted");
+ is($imread->tags(name => 'pnm_type'), 4, "check type");
+}
+
+{
+ print "# 16-bit output\n";
+ my $data;
+ my $im = test_image_16();
+
+ # without tag, it should do 8-bit output
+ ok($im->write(data => \$data, type => 'pnm'),
+ "write 16-bit image as 8-bit/sample ppm");
+ my $im8 = Imager->new;
+ ok($im8->read(data => $data), "read it back");
+ is($im8->tags(name => 'pnm_maxval'), 255, "check maxval");
+ is_image($im, $im8, "check image matches");
+
+ # try 16-bit output
+ $im->settag(name => 'pnm_write_wide_data', value => 1);
+ $data = '';
+ ok($im->write(data => \$data, type => 'pnm'),
+ "write 16-bit image as 16-bit/sample ppm");
+ $im->write(file=>'testout/t104_16.ppm');
+ my $im16 = Imager->new;
+ ok($im16->read(data => $data), "read it back");
+ is($im16->tags(name => 'pnm_maxval'), 65535, "check maxval");
+ $im16->write(file=>'testout/t104_16b.ppm');
+ is_image($im, $im16, "check image matches");
+}
+
+sub openimage {
+ my $fname = shift;
+ local(*FH);
+ open(FH, $fname) or die "Cannot open $fname: $!\n";
+ binmode(FH);
+ return *FH;
+}
+
+sub slurp {
+ my $fh = openimage(shift);
+ local $/;
+ my $data = <$fh>;
+ close($fh);
+ return $data;
+}
+
+sub check_gray {
+ my ($c, $gray) = @_;
+
+ my ($g) = $c->rgba;
+ is($g, $gray, "compare gray");
+}
projects / imager.git / blobdiff