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#!perl -w
use strict;
use Imager qw(:handy);
use Test::More tests => 114;
use Imager::Test qw(is_image is_imaged);
-d "testout" or mkdir "testout";
Imager::init_log("testout/t62compose.log", 1);
my @files;
my %types =
(
double =>
{
blue => NCF(0, 0, 1),
red => NCF(1, 0, 0),
green2 => NCF(0, 1, 0, 0.5),
green2_on_blue => NCF(0, 0.5, 0.5),
red3_on_blue => NCF(1/3, 0, 2/3),
green6_on_blue => NCF(0, 1/6, 5/6),
red2_on_blue => NCF(0.5, 0, 0.5),
green4_on_blue => NCF(0, 0.25, 0.75),
gray100 => NCF(1.0, 0, 0),
gray50 => NCF(0.5, 0, 0),
is_image => \&is_imaged,
},
8 =>
{
blue => NC(0, 0, 255),
red => NC(255, 0, 0),
green2 => NC(0, 255, 0, 128),
green2_on_blue => NC(0, 128, 127),
red3_on_blue => NC(85, 0, 170),
green6_on_blue => NC(0, 42, 213),
red2_on_blue => NC(128, 0, 127),
green4_on_blue => NC(0, 64, 191),
gray100 => NC(255, 0, 0),
gray50 => NC(128, 0, 0),
is_image => \&is_image,
},
);
for my $type_id (sort keys %types) {
my $type = $types{$type_id};
my $blue = $type->{blue};
my $red = $type->{red};
my $green2 = $type->{green2};
my $green2_on_blue = $type->{green2_on_blue};
my $red3_on_blue = $type->{red3_on_blue};
my $green6_on_blue = $type->{green6_on_blue};
my $red2_on_blue = $type->{red2_on_blue};
my $green4_on_blue = $type->{green4_on_blue};
my $gray100 = $type->{gray100};
my $gray50 = $type->{gray50};
my $is_image = $type->{is_image};
print "# type $type_id\n";
my $targ = Imager->new(xsize => 100, ysize => 100, bits => $type_id);
$targ->box(color => $blue, filled => 1);
is($targ->type, "direct", "check target image type");
is($targ->bits, $type_id, "check target bits");
my $src = Imager->new(xsize => 40, ysize => 40, channels => 4, bits => $type_id);
$src->box(filled => 1, color => $red, xmax => 19, ymax => 19);
$src->box(filled => 1, xmin => 20, color => $green2);
save_to($src, "${type_id}_src");
my $mask_ones = Imager->new(channels => 1, xsize => 40, ysize => 40, bits => $type_id);
$mask_ones->box(filled => 1, color => NC(255, 255, 255));
# mask or full mask, should be the same
for my $mask_info ([ "nomask" ], [ "fullmask", mask => $mask_ones ]) {
my ($mask_type, @mask_extras) = @$mask_info;
print "# $mask_type\n";
{
my $cmp = $targ->copy;
$cmp->box(filled => 1, color => $red,
xmin=> 5, ymin => 10, xmax => 24, ymax => 29);
$cmp->box(filled => 1, color => $green2_on_blue,
xmin => 25, ymin => 10, xmax => 44, ymax => 49);
{
my $work = $targ->copy;
ok($work->compose(src => $src, tx => 5, ty => 10, @mask_extras),
"$mask_type - simple compose");
$is_image->($work, $cmp, "check match");
save_to($work, "${type_id}_${mask_type}_simple");
}
{ # >1 opacity
my $work = $targ->copy;
ok($work->compose(src => $src, tx => 5, ty => 10, opacity => 2.0, @mask_extras),
"$mask_type - compose with opacity > 1.0 acts like opacity=1.0");
$is_image->($work, $cmp, "check match");
}
{ # 0 opacity is a failure
my $work = $targ->copy;
ok(!$work->compose(src => $src, tx => 5, ty => 10, opacity => 0.0, @mask_extras),
"$mask_type - compose with opacity = 0 is an error");
is($work->errstr, "opacity must be positive", "check message");
}
}
{ # compose at 1/3
my $work = $targ->copy;
ok($work->compose(src => $src, tx => 7, ty => 33, opacity => 1/3, @mask_extras),
"$mask_type - simple compose at 1/3");
my $cmp = $targ->copy;
$cmp->box(filled => 1, color => $red3_on_blue,
xmin => 7, ymin => 33, xmax => 26, ymax => 52);
$cmp->box(filled => 1, color => $green6_on_blue,
xmin => 27, ymin => 33, xmax => 46, ymax => 72);
$is_image->($work, $cmp, "check match");
}
{ # targ off top left
my $work = $targ->copy;
ok($work->compose(src => $src, tx => -5, ty => -3, @mask_extras),
"$mask_type - compose off top left");
my $cmp = $targ->copy;
$cmp->box(filled => 1, color => $red,
xmin=> 0, ymin => 0, xmax => 14, ymax => 16);
$cmp->box(filled => 1, color => $green2_on_blue,
xmin => 15, ymin => 0, xmax => 34, ymax => 36);
$is_image->($work, $cmp, "check match");
}
{ # targ off bottom right
my $work = $targ->copy;
ok($work->compose(src => $src, tx => 65, ty => 67, @mask_extras),
"$mask_type - targ off bottom right");
my $cmp = $targ->copy;
$cmp->box(filled => 1, color => $red,
xmin=> 65, ymin => 67, xmax => 84, ymax => 86);
$cmp->box(filled => 1, color => $green2_on_blue,
xmin => 85, ymin => 67, xmax => 99, ymax => 99);
$is_image->($work, $cmp, "check match");
}
{ # src off top left
my $work = $targ->copy;
my @more_mask_extras;
if (@mask_extras) {
push @more_mask_extras,
(
mask_left => -5,
mask_top => -15,
);
}
ok($work->compose(src => $src, tx => 10, ty => 20,
src_left => -5, src_top => -15,
@mask_extras, @more_mask_extras),
"$mask_type - source off top left");
my $cmp = $targ->copy;
$cmp->box(filled => 1, color => $red,
xmin=> 15, ymin => 35, xmax => 34, ymax => 54);
$cmp->box(filled => 1, color => $green2_on_blue,
xmin => 35, ymin => 35, xmax => 54, ymax => 74);
$is_image->($work, $cmp, "check match");
}
{
# src off bottom right
my $work = $targ->copy;
ok($work->compose(src => $src, tx => 10, ty => 20,
src_left => 10, src_top => 15,
width => 40, height => 40, @mask_extras),
"$mask_type - source off bottom right");
my $cmp = $targ->copy;
$cmp->box(filled => 1, color => $red,
xmin=> 10, ymin => 20, xmax => 19, ymax => 24);
$cmp->box(filled => 1, color => $green2_on_blue,
xmin => 20, ymin => 20, xmax => 39, ymax => 44);
$is_image->($work, $cmp, "check match");
}
{
# simply out of bounds
my $work = $targ->copy;
ok(!$work->compose(src => $src, tx => 100, @mask_extras),
"$mask_type - off the right of the target");
$is_image->($work, $targ, "no changes");
ok(!$work->compose(src => $src, ty => 100, @mask_extras),
"$mask_type - off the bottom of the target");
$is_image->($work, $targ, "no changes");
ok(!$work->compose(src => $src, tx => -40, @mask_extras),
"$mask_type - off the left of the target");
$is_image->($work, $targ, "no changes");
ok(!$work->compose(src => $src, ty => -40, @mask_extras),
"$mask_type - off the top of the target");
$is_image->($work, $targ, "no changes");
}
}
# masked tests
my $mask = Imager->new(xsize => 40, ysize => 40, channels => 1, bits => $type_id);
$mask->box(filled => 1, xmax => 19, color => $gray100);
$mask->box(filled => 1, xmin => 20, ymax => 14, xmax => 34,
color => $gray50);
is($mask->bits, $type_id, "check mask bits");
{
my $work = $targ->copy;
ok($work->compose(src => $src, tx => 5, ty => 7,
mask => $mask),
"simple draw masked");
my $cmp = $targ->copy;
$cmp->box(filled => 1, color => $red,
xmin => 5, ymin => 7, xmax => 24, ymax => 26);
$cmp->box(filled => 1, color => $green4_on_blue,
xmin => 25, ymin => 7, xmax => 39, ymax => 21);
$is_image->($work, $cmp, "check match");
save_to($work, "${type_id}_simp_masked");
save_to($work, "${type_id}_simp_masked_cmp");
}
{
my $work = $targ->copy;
ok($work->compose(src => $src, tx => 5, ty => 7,
mask_left => 5, mask_top => 2,
mask => $mask),
"draw with mask offset");
my $cmp = $targ->copy;
$cmp->box(filled => 1, color => $red,
xmin => 5, ymin => 7, xmax => 19, ymax => 26);
$cmp->box(filled => 1, color => $red2_on_blue,
xmin => 20, ymin => 7, xmax => 24, ymax => 19);
$cmp->box(filled => 1, color => $green4_on_blue,
xmin => 25, ymin => 7, xmax => 34, ymax => 19);
$is_image->($work, $cmp, "check match");
}
{
my $work = $targ->copy;
ok($work->compose(src => $src, tx => 5, ty => 7,
mask_left => -3, mask_top => -2,
mask => $mask),
"draw with negative mask offsets");
my $cmp = $targ->copy;
$cmp->box(filled => 1, color => $red,
xmin => 8, ymin => 9, xmax => 24, ymax => 26);
$cmp->box(filled => 1, color => $green2_on_blue,
xmin => 25, ymin => 9, xmax => 27, ymax => 46);
$cmp->box(filled => 1, color => $green4_on_blue,
xmin => 28, ymin => 9, xmax => 42, ymax => 23);
$is_image->($work, $cmp, "check match");
}
}
unless ($ENV{IMAGER_KEEP_FILES}) {
unlink @files;
}
sub save_to {
my ($im, $name) = @_;
my $type = $ENV{IMAGER_SAVE_TYPE} || "ppm";
$name = "testout/t62_$name.$type";
$im->write(file => $name,
pnm_write_wide_data => 1);
push @files, $name;
}
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