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#!perl -w
use Imager;
use Test::More tests => 22;
use Imager::Test qw(is_image);
{
# GIF files are limited to 0xFFFF x 0xFFFF pixels
{
my $im = Imager->new(xsize => 0x10000, ysize => 1);
my $data = '';
ok(!$im->write(data => \$data, type => "gif"),
"fail to write too wide an image");
is($im->errstr, "image too large for GIF",
"check error message");
}
SKIP:
{
my $im = Imager->new(xsize => 0xFFFF, ysize => 1);
$im->box(fill => { hatch => "check4x4" });
my $data = '';
ok($im->write(data => \$data, type => "gif"),
"write image at width limit");
my $im2 = Imager->new(data => $data, ftype => "gif");
ok($im2, "read it ok")
or skip("cannot load the wide image", 1);
is_image($im, $im2, "check we read what we wrote");
is($im->getwidth, 0xffff, "check width");
is($im->getheight, 1, "check height");
}
{
my $im = Imager->new(xsize => 1, ysize => 0x10000);
my $data = '';
ok(!$im->write(data => \$data, type => "gif"),
"fail to write too tall an image");
is($im->errstr, "image too large for GIF",
"check error message");
}
SKIP:
{
my $im = Imager->new(xsize => 1, ysize => 0xFFFF);
$im->box(fill => { hatch => "check2x2" });
my $data = '';
ok($im->write(data => \$data, type => "gif"),
"write image at width limit");
my $im2 = Imager->new(data => $data, ftype => "gif");
ok($im2, "read it ok")
or skip("cannot load the wide image", 1);
is_image($im, $im2, "check we read what we wrote");
is($im->getwidth, 1, "check width");
is($im->getheight, 0xffff, "check height");
}
}
{
my $im = Imager->new(xsize => 1, ysize => 1);
$im->settag(name => "gif_screen_width", value => 65536);
my $data = '';
ok(!$im->write(data => \$data, type => "gif"),
"save a with a large explicit screen width should fail");
is($im->errstr, "screen size too large for GIF",
"check error message");
}
{
my $im = Imager->new(xsize => 0x8000, ysize => 1);
$im->settag(name => "gif_left", value => 32768);
my $data = '';
ok(!$im->write(data => \$data, type => "gif"),
"save a with a large implicit screen width should fail");
is($im->errstr, "screen size too large for GIF",
"check error message");
}
{
my $im = Imager->new(xsize => 1, ysize => 1);
$im->settag(name => "gif_screen_height", value => 65536);
my $data = '';
ok(!$im->write(data => \$data, type => "gif"),
"save a with a large explicit screen height should fail");
is($im->errstr, "screen size too large for GIF",
"check error message");
}
{
my $im = Imager->new(xsize => 1, ysize => 0x8000);
$im->settag(name => "gif_top", value => 32768);
my $data = '';
ok(!$im->write(data => \$data, type => "gif"),
"save a with a large implicit screen height should fail");
is($im->errstr, "screen size too large for GIF",
"check error message");
}
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