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t38ft2font.t
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t38ft2font.t
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#!perl -w
use strict;
use Test::More tests => 183;
++$|;
# Before `make install' is performed this script should be runnable with
# `make test'. After `make install' it should work as `perl test.pl'
######################### We start with some black magic to print on failure.
# Change 1..1 below to 1..last_test_to_print .
# (It may become useful if the test is moved to ./t subdirectory.)
BEGIN { use_ok(Imager => ':all') }
use Imager::Test qw(diff_text_with_nul is_color3);
init_log("testout/t38ft2font.log",2);
my @base_color = (64, 255, 64);
SKIP:
{
i_has_format("ft2") or skip("no freetype2 library found", 182);
print "# has ft2\n";
my $fontname=$ENV{'TTFONTTEST'}||'./fontfiles/dodge.ttf';
-f $fontname or skip("cannot find fontfile $fontname", 182);
my $bgcolor=i_color_new(255,0,0,0);
my $overlay=Imager::ImgRaw::new(200,70,3);
my $ttraw=Imager::Font::FreeType2::i_ft2_new($fontname, 0);
$ttraw or print Imager::_error_as_msg(),"\n";
ok($ttraw, "loaded raw font");
my @bbox=Imager::Font::FreeType2::i_ft2_bbox($ttraw, 50.0, 0, 'XMCLH', 0);
print "#bbox @bbox\n";
is(@bbox, 8, "i_ft2_bbox() returns 8 values");
ok(Imager::Font::FreeType2::i_ft2_cp($ttraw,$overlay,5,50,1,50.0,50, 'XMCLH',1,1, 0, 0), "drawn to channel");
i_line($overlay,0,50,100,50,$bgcolor,1);
open(FH,">testout/t38ft2font.ppm") || die "cannot open testout/t38ft2font.ppm\n";
binmode(FH);
my $IO = Imager::io_new_fd(fileno(FH));
ok(i_writeppm_wiol($overlay, $IO), "saved image");
close(FH);
$bgcolor=i_color_set($bgcolor,200,200,200,0);
my $backgr=Imager::ImgRaw::new(500,300,3);
# i_tt_set_aa(2);
ok(Imager::Font::FreeType2::i_ft2_text($ttraw,$backgr,100,150,NC(255, 64, 64),200.0,50, 'MAW',1,1,0, 0), "drew MAW");
Imager::Font::FreeType2::i_ft2_settransform($ttraw, [0.9659, 0.2588, 0, -0.2588, 0.9659, 0 ]);
ok(Imager::Font::FreeType2::i_ft2_text($ttraw,$backgr,100,150,NC(0, 128, 0),200.0,50, 'MAW',0,1, 0, 0), "drew rotated MAW");
i_line($backgr, 0,150, 499, 150, NC(0, 0, 255),1);
open(FH,">testout/t38ft2font2.ppm") || die "cannot open testout/t38ft2font.ppm\n";
binmode(FH);
$IO = Imager::io_new_fd(fileno(FH));
ok(i_writeppm_wiol($backgr,$IO), "saved second image");
close(FH);
my $oof = Imager::Font->new(file=>$fontname, type=>'ft2', 'index'=>0);
ok($oof, "loaded OO font");
my $im = Imager->new(xsize=>400, ysize=>250);
ok($im->string(font=>$oof,
text=>"Via OO",
'x'=>20,
'y'=>20,
size=>60,
color=>NC(255, 128, 255),
aa => 1,
align=>0), "drawn through OO interface");
ok($oof->transform(matrix=>[1, 0.1, 0, 0, 1, 0]),
"set matrix via OO interface");
ok($im->string(font=>$oof,
text=>"Shear",
'x'=>20,
'y'=>40,
size=>60,
sizew=>50,
channel=>1,
aa=>1,
align=>1), "drawn transformed through OO");
use Imager::Matrix2d ':handy';
ok($oof->transform(matrix=>m2d_rotate(degrees=>-30)),
"set transform from m2d module");
ok($im->string(font=>$oof,
text=>"SPIN",
'x'=>20,
'y'=>50,
size=>50,
sizew=>40,
color=>NC(255,255,0),
aa => 1,
align=>0, vlayout=>0), "drawn first rotated");
ok($im->string(font=>$oof,
text=>"SPIN",
'x'=>20,
'y'=>50,
size=>50,
sizew=>40,
channel=>2,
aa => 1,
align=>0, vlayout=>0), "drawn second rotated");
$oof->transform(matrix=>m2d_identity());
$oof->hinting(hinting=>1);
# UTF8 testing
# the test font (dodge.ttf) only supports one character above 0xFF that
# I can see, 0x2010 HYPHEN (which renders the same as 0x002D HYPHEN MINUS)
# an attempt at utf8 support
# first attempt to use native perl UTF8
SKIP:
{
skip("no native UTF8 support in this version of perl", 1)
unless $] >= 5.006;
my $text;
# we need to do this in eval to prevent compile time errors in older
# versions
eval q{$text = "A\x{2010}A"}; # A, HYPHEN, A in our test font
#$text = "A".chr(0x2010)."A"; # this one works too
unless (ok($im->string(font=>$oof,
text=>$text,
'x'=>20,
'y'=>200,
size=>50,
color=>NC(0,255,0),
aa=>1), "drawn UTF natively")) {
print "# ",$im->errstr,"\n";
}
}
# an attempt using emulation of UTF8
my $text = pack("C*", 0x41, 0xE2, 0x80, 0x90, 0x41);
#my $text = "A\xE2\x80\x90\x41\x{2010}";
#substr($text, -1, 0) = '';
unless (ok($im->string(font=>$oof,
text=>$text,
'x'=>20,
'y'=>230,
size=>50,
color=>NC(255,128,0),
aa=>1,
utf8=>1), "drawn UTF emulated")) {
print "# ",$im->errstr,"\n";
}
# just a bit of fun
# well it was - it demostrates what happens when you combine
# transformations and font hinting
for my $steps (0..39) {
$oof->transform(matrix=>m2d_rotate(degrees=>-$steps+5));
# demonstrates why we disable hinting on a doing a transform
# if the following line is enabled then the 0 degrees output sticks
# out a bit
# $oof->hinting(hinting=>1);
$im->string(font=>$oof,
text=>"SPIN",
'x'=>160,
'y'=>70,
size=>65,
color=>NC(255, $steps * 5, 200-$steps * 5),
aa => 1,
align=>0, );
}
$im->write(file=>'testout/t38_oo.ppm')
or print "# could not save OO output: ",$im->errstr,"\n";
my (@got) = $oof->has_chars(string=>"\x01H");
ok(@got == 2, "has_chars returned 2 items");
ok(!$got[0], "have no chr(1)");
ok($got[1], "have 'H'");
is($oof->has_chars(string=>"H\x01"), "\x01\x00",
"scalar has_chars()");
print "# OO bounding boxes\n";
@bbox = $oof->bounding_box(string=>"hello", size=>30);
my $bbox = $oof->bounding_box(string=>"hello", size=>30);
is(@bbox, 8, "list bbox returned 8 items");
ok($bbox->isa('Imager::Font::BBox'), "scalar bbox returned right class");
ok($bbox->start_offset == $bbox[0], "start_offset");
ok($bbox->end_offset == $bbox[2], "end_offset");
ok($bbox->global_ascent == $bbox[3], "global_ascent");
ok($bbox->global_descent == $bbox[1], "global_descent");
ok($bbox->ascent == $bbox[5], "ascent");
ok($bbox->descent == $bbox[4], "descent");
ok($bbox->advance_width == $bbox[6], "advance_width");
print "# aligned text output\n";
my $alimg = Imager->new(xsize=>300, ysize=>300);
$alimg->box(color=>'40FF40', filled=>1);
$oof->transform(matrix=>m2d_identity());
$oof->hinting(hinting=>1);
align_test('left', 'top', 10, 10, $oof, $alimg);
align_test('start', 'top', 10, 40, $oof, $alimg);
align_test('center', 'top', 150, 70, $oof, $alimg);
align_test('end', 'top', 290, 100, $oof, $alimg);
align_test('right', 'top', 290, 130, $oof, $alimg);
align_test('center', 'top', 150, 160, $oof, $alimg);
align_test('center', 'center', 150, 190, $oof, $alimg);
align_test('center', 'bottom', 150, 220, $oof, $alimg);
align_test('center', 'baseline', 150, 250, $oof, $alimg);
ok($alimg->write(file=>'testout/t38aligned.ppm'),
"saving aligned output image");
my $exfont = Imager::Font->new(file=>'fontfiles/ExistenceTest.ttf',
type=>'ft2');
SKIP:
{
ok($exfont, "loaded existence font") or
skip("couldn't load test font", 11);
# the test font is known to have a shorter advance width for that char
my @bbox = $exfont->bounding_box(string=>"/", size=>100);
is(@bbox, 8, "should be 8 entries");
isnt($bbox[6], $bbox[2], "different advance width");
my $bbox = $exfont->bounding_box(string=>"/", size=>100);
ok($bbox->pos_width != $bbox->advance_width, "OO check");
cmp_ok($bbox->right_bearing, '<', 0, "check right bearing");
cmp_ok($bbox->display_width, '>', $bbox->advance_width,
"check display width (roughly)");
# check with a char that fits inside the box
$bbox = $exfont->bounding_box(string=>"!", size=>100);
print "# pos width ", $bbox->pos_width, "\n";
is($bbox->pos_width, $bbox->advance_width,
"check backwards compatibility");
cmp_ok($bbox->left_bearing, '>', 0, "left bearing positive");
cmp_ok($bbox->right_bearing, '>', 0, "right bearing positive");
cmp_ok($bbox->display_width, '<', $bbox->advance_width,
"display smaller than advance");
# name tests
# make sure the number of tests on each branch match
if (Imager::Font::FreeType2::i_ft2_can_face_name()) {
my $facename = Imager::Font::FreeType2::i_ft2_face_name($exfont->{id});
print "# face name '$facename'\n";
is($facename, 'ExistenceTest', "test face name");
$facename = $exfont->face_name;
is($facename, 'ExistenceTest', "test face name OO");
}
else {
# make sure we get the error we expect
my $facename = Imager::Font::FreeType2::i_ft2_face_name($exfont->{id});
my ($msg) = Imager::_error_as_msg();
ok(!defined($facename), "test face name not supported");
print "# $msg\n";
ok(scalar($msg =~ /or later required/), "test face name not supported");
}
}
SKIP:
{
Imager::Font::FreeType2->can_glyph_names
or skip("FT2 compiled without glyph names support", 9);
# FT2 considers POST tables in TTF fonts unreliable, so use
# a type 1 font, see below for TTF test
my $exfont = Imager::Font->new(file=>'fontfiles/ExistenceTest.pfb',
type=>'ft2');
SKIP:
{
ok($exfont, "load Type 1 via FT2")
or skip("couldn't load type 1 with FT2", 8);
my @glyph_names =
Imager::Font::FreeType2::i_ft2_glyph_name($exfont->{id}, "!J/");
#use Data::Dumper;
#print Dumper \@glyph_names;
is($glyph_names[0], 'exclam', "check exclam name");
ok(!defined($glyph_names[1]), "check for no J name");
is($glyph_names[2], 'slash', "check slash name");
# oo interfaces
@glyph_names = $exfont->glyph_names(string=>"!J/");
is($glyph_names[0], 'exclam', "check exclam name OO");
ok(!defined($glyph_names[1]), "check for no J name OO");
is($glyph_names[2], 'slash', "check slash name OO");
# make sure a missing string parameter is handled correctly
eval {
$exfont->glyph_names();
};
is($@, "", "correct error handling");
cmp_ok(Imager->errstr, '=~', qr/no string parameter/, "error message");
}
# freetype 2 considers truetype glyph name tables unreliable
# due to some specific fonts, supplying reliable_only=>0 bypasses
# that check and lets us get the glyph names even for truetype fonts
# so we can test this stuff <sigh>
# we can't use ExistenceTest.ttf since that's generated with
# AppleStandardEncoding since the same .sfd needs to generate
# a .pfb file, NameTest.ttf uses a Unicode encoding
# we were using an unsigned char to store a unicode character
# https://rt.cpan.org/Ticket/Display.html?id=7949
$exfont = Imager::Font->new(file=>'fontfiles/NameTest.ttf',
type=>'ft2');
SKIP:
{
ok($exfont, "load TTF via FT2")
or skip("could not load TTF with FT2", 1);
my $text = pack("C*", 0xE2, 0x80, 0x90); # "\x{2010}" as utf-8
my @names = $exfont->glyph_names(string=>$text,
utf8=>1, reliable_only=>0);
is($names[0], "hyphentwo", "check utf8 glyph name");
}
}
# check that error codes are translated correctly
my $errfont = Imager::Font->new(file=>"t/t38ft2font.t", type=>"ft2");
is($errfont, undef, "new font vs non font");
cmp_ok(Imager->errstr, '=~', qr/unknown file format/, "check error message");
# Multiple Master tests
# we check a non-MM font errors correctly
print "# check that the methods act correctly for a non-MM font\n";
ok(!$exfont->is_mm, "exfont not MM");
ok((() = $exfont->mm_axes) == 0, "exfont has no MM axes");
cmp_ok(Imager->errstr, '=~', qr/no multiple masters/,
"and returns correct error when we ask");
ok(!$exfont->set_mm_coords(coords=>[0, 0]), "fail setting axis on exfont");
cmp_ok(Imager->errstr, '=~', qr/no multiple masters/,
"and returns correct error when we ask");
# try a MM font now - test font only has A defined
print "# Try a multiple master font\n";
my $mmfont = Imager::Font->new(file=>"fontfiles/MMOne.pfb", type=>"ft2",
color=>"white", aa=>1, size=>60);
ok($mmfont, "loaded MM font");
ok($mmfont->is_mm, "font is multiple master");
my @axes = $mmfont->mm_axes;
is(@axes, 2, "check we got both axes");
is($axes[0][0], "Weight", "name of first axis");
is($axes[0][1], 50, "min for first axis");
is($axes[0][2], 999, "max for first axis");
is($axes[1][0], "Slant", "name of second axis");
is($axes[1][1], 0, "min for second axis");
is($axes[1][2], 999, "max for second axis");
my $mmim = Imager->new(xsize=>200, ysize=>200);
$mmim->string(font=>$mmfont, x=>0, 'y'=>50, text=>"A");
ok($mmfont->set_mm_coords(coords=>[ 700, 0 ]), "set to bold, unsloped");
$mmim->string(font=>$mmfont, x=>0, 'y'=>100, text=>"A", color=>'blue');
my @weights = qw(50 260 525 760 999);
my @slants = qw(0 333 666 999);
for my $windex (0 .. $#weights) {
my $weight = $weights[$windex];
for my $sindex (0 .. $#slants) {
my $slant = $slants[$sindex];
$mmfont->set_mm_coords(coords=>[ $weight, $slant ]);
$mmim->string(font=>$mmfont, x=>30+32*$windex, 'y'=>50+45*$sindex,
text=>"A");
}
}
ok($mmim->write(file=>"testout/t38mm.ppm"), "save MM output");
SKIP:
{ print "# alignment tests\n";
my $font = Imager::Font->new(file=>'fontfiles/ImUgly.ttf', type=>'ft2');
ok($font, "loaded deffont OO")
or skip("could not load font:".Imager->errstr, 4);
my $im = Imager->new(xsize=>140, ysize=>150);
my %common =
(
font=>$font,
size=>40,
aa=>1,
);
$im->line(x1=>0, y1=>40, x2=>139, y2=>40, color=>'blue');
$im->line(x1=>0, y1=>90, x2=>139, y2=>90, color=>'blue');
$im->line(x1=>0, y1=>110, x2=>139, y2=>110, color=>'blue');
for my $args ([ x=>5, text=>"A", color=>"white" ],
[ x=>40, text=>"y", color=>"white" ],
[ x=>75, text=>"A", channel=>1 ],
[ x=>110, text=>"y", channel=>1 ]) {
ok($im->string(%common, @$args, 'y'=>40), "A no alignment");
ok($im->string(%common, @$args, 'y'=>90, align=>1), "A align=1");
ok($im->string(%common, @$args, 'y'=>110, align=>0), "A align=0");
}
ok($im->write(file=>'testout/t38align.ppm'), "save align image");
}
{ # outputting a space in non-AA could either crash
# or fail (ft 2.2+)
my $font = Imager::Font->new(file=>'fontfiles/ImUgly.ttf', type=>'ft2');
my $im = Imager->new(xsize => 100, ysize => 100);
ok($im->string(x => 10, y => 10, string => "test space", aa => 0,
color => '#FFF', size => 8, font => $font),
"draw space non-antialiased (color)");
ok($im->string(x => 10, y => 50, string => "test space", aa => 0,
channel => 0, size => 8, font => $font),
"draw space non-antialiased (channel)");
}
{ # cannot output "0"
# https://rt.cpan.org/Ticket/Display.html?id=21770
my $font = Imager::Font->new(file=>'fontfiles/ImUgly.ttf', type=>'ft2');
ok($font, "loaded imugly");
my $imbase = Imager->new(xsize => 100, ysize => 100);
my $im = $imbase->copy;
ok($im->string(x => 10, y => 50, string => "0", aa => 0,
color => '#FFF', size => 20, font => $font),
"draw '0'");
ok(Imager::i_img_diff($im->{IMG}, $imbase->{IMG}),
"make sure we actually drew it");
$im = $imbase->copy;
ok($im->string(x => 10, y => 50, string => 0.0, aa => 0,
color => '#FFF', size => 20, font => $font),
"draw 0.0");
ok(Imager::i_img_diff($im->{IMG}, $imbase->{IMG}),
"make sure we actually drew it");
}
{ # string output cut off at NUL ('\0')
# https://rt.cpan.org/Ticket/Display.html?id=21770 cont'd
my $font = Imager::Font->new(file=>'fontfiles/ImUgly.ttf', type=>'ft2');
ok($font, "loaded imugly");
diff_text_with_nul("a\\0b vs a", "a\0b", "a",
font => $font, color => '#FFFFFF');
diff_text_with_nul("a\\0b vs a", "a\0b", "a",
font => $font, channel => 1);
# UTF8 encoded \x{2010}
my $dash = pack("C*", 0xE2, 0x80, 0x90);
diff_text_with_nul("utf8 dash\0dash vs dash", "$dash\0$dash", $dash,
font => $font, color => '#FFFFFF', utf8 => 1);
diff_text_with_nul("utf8 dash\0dash vs dash", "$dash\0$dash", $dash,
font => $font, channel => 1, utf8 => 1);
}
{ # RT 11972
# when rendering to a transparent image the coverage should be
# expressed in terms of the alpha channel rather than the color
my $font = Imager::Font->new(file=>'fontfiles/ImUgly.ttf', type=>'ft2');
my $im = Imager->new(xsize => 40, ysize => 20, channels => 4);
ok($im->string(string => "AB", size => 20, aa => 1, color => '#F00',
x => 0, y => 15, font => $font),
"draw to transparent image");
my $im_noalpha = $im->convert(preset => 'noalpha');
my $im_pal = $im->to_paletted(make_colors => 'mediancut');
my @colors = $im_pal->getcolors;
is(@colors, 2, "should be only 2 colors");
@colors = sort { ($a->rgba)[0] <=> ($b->rgba)[0] } @colors;
is_color3($colors[0], 0, 0, 0, "check we got black");
is_color3($colors[1], 255, 0, 0, "and red");
}
{ # RT 27546
my $im = Imager->new(xsize => 100, ysize => 100, channels => 4);
$im->box(filled => 1, color => '#ff0000FF');
my $font = Imager::Font->new(file=>'fontfiles/ImUgly.ttf', type=>'ft2');
ok($im->string(x => 0, 'y' => 40, text => 'test',
size => 11, sizew => 11, font => $font, aa => 1),
'draw on translucent image')
}
}
sub align_test {
my ($h, $v, $x, $y, $f, $img) = @_;
my @pos = $f->align(halign=>$h, valign=>$v, 'x'=>$x, 'y'=>$y,
image=>$img, size=>15, color=>'FFFFFF',
string=>"x$h ${v}y", channel=>1, aa=>1);
@pos = $img->align_string(halign=>$h, valign=>$v, 'x'=>$x, 'y'=>$y,
font=>$f, size=>15, color=>'FF99FF',
string=>"x$h ${v}y", aa=>1);
if (ok(@pos == 4, "$h $v aligned output")) {
# checking corners
my $cx = int(($pos[0] + $pos[2]) / 2);
my $cy = int(($pos[1] + $pos[3]) / 2);
print "# @pos cx $cx cy $cy\n";
okmatchcolor($img, $cx, $pos[1]-1, @base_color, "outer top edge");
okmatchcolor($img, $cx, $pos[3], @base_color, "outer bottom edge");
okmatchcolor($img, $pos[0]-1, $cy, @base_color, "outer left edge");
okmatchcolor($img, $pos[2], $cy, @base_color, "outer right edge");
okmismatchcolor($img, $cx, $pos[1], @base_color, "inner top edge");
okmismatchcolor($img, $cx, $pos[3]-1, @base_color, "inner bottom edge");
okmismatchcolor($img, $pos[0], $cy, @base_color, "inner left edge");
# okmismatchcolor($img, $pos[2]-1, $cy, @base_color, "inner right edge");
# XXX: This gets triggered by a freetype2 bug I think
# $ rpm -qa | grep freetype
# freetype-2.1.3-6
#
# (addi: 4/1/2004).
cross($img, $x, $y, 'FF0000');
cross($img, $cx, $pos[1]-1, '0000FF');
cross($img, $cx, $pos[3], '0000FF');
cross($img, $pos[0]-1, $cy, '0000FF');
cross($img, $pos[2], $cy, '0000FF');
}
else {
SKIP: { skip("couldn't draw text", 7) };
}
}
sub okmatchcolor {
my ($img, $x, $y, $r, $g, $b, $about) = @_;
my $c = $img->getpixel('x'=>$x, 'y'=>$y);
my ($fr, $fg, $fb) = $c->rgba;
ok($fr == $r && $fg == $g && $fb == $b,
"want ($r,$g,$b) found ($fr,$fg,$fb)\@($x,$y) $about");
}
sub okmismatchcolor {
my ($img, $x, $y, $r, $g, $b, $about) = @_;
my $c = $img->getpixel('x'=>$x, 'y'=>$y);
my ($fr, $fg, $fb) = $c->rgba;
ok($fr != $r || $fg != $g || $fb != $b,
"don't want ($r,$g,$b) found ($fr,$fg,$fb)\@($x,$y) $about");
}
sub cross {
my ($img, $x, $y, $color) = @_;
$img->setpixel('x'=>[$x, $x, $x, $x, $x, $x-2, $x-1, $x+1, $x+2],
'y'=>[$y-2, $y-1, $y, $y+1, $y+2, $y, $y, $y, $y],
color => $color);
}