t/ttf.t - metacpan.org

#!/usr/bin/perl -w
use strict;
use warnings;
use SDL;
use SDL::Config;
use SDL::Color;
use SDL::Surface;
use SDL::Overlay;
use SDL::Rect;
use SDL::Video;
use SDL::PixelFormat;

BEGIN {
	use FindBin;
	use Test::More;
	use lib 't/lib';
	use SDL::TestTool;

	if ( !SDL::Config->has('SDL_ttf') ) {
		plan( skip_all => 'SDL_ttf support not compiled' );
	}
}

use SDL::TTF ':all';
use SDL::TTF::Font;
use SDL::RWOps;
use SDL::Version;
use Encode;

use File::Spec;
my $font_filename = File::Spec->catfile( $FindBin::Bin, '..', 'share', 'GenBasR.ttf' );

my $videodriver = $ENV{SDL_VIDEODRIVER};
$ENV{SDL_VIDEODRIVER} = 'dummy' unless $ENV{SDL_RELEASE_TESTING};

my $lv = SDL::TTF::linked_version();
my $cv = SDL::TTF::compile_time_version();

isa_ok( $lv, 'SDL::Version', '[linked_version] returns a SDL::Version object' );
isa_ok(
	$cv, 'SDL::Version',
	'[compile_time_version] returns a SDL::Version object'
);
printf(
	"got version: %d.%d.%d/%d.%d.%d\n",
	$lv->major, $lv->minor, $lv->patch, $cv->major, $cv->minor, $cv->patch
);

is( TTF_HINTING_NORMAL,   0, 'TTF_HINTING_NORMAL should be imported' );
is( TTF_HINTING_NORMAL(), 0, 'TTF_HINTING_NORMAL() should also be available' );
is( TTF_HINTING_LIGHT,    1, 'TTF_HINTING_LIGHT should be imported' );
is( TTF_HINTING_LIGHT(),  1, 'TTF_HINTING_LIGHT() should also be available' );
is( TTF_HINTING_MONO,     2, 'TTF_HINTING_MONO should be imported' );
is( TTF_HINTING_MONO(),   2, 'TTF_HINTING_MONO() should also be available' );
is( TTF_HINTING_NONE,     3, 'TTF_HINTING_NONE should be imported' );
is( TTF_HINTING_NONE(),   3, 'TTF_HINTING_NONE() should also be available' );
is( TTF_STYLE_NORMAL,     0, 'TTF_STYLE_NORMAL should be imported' );
is( TTF_STYLE_NORMAL(),   0, 'TTF_STYLE_NORMAL() should also be available' );
is( TTF_STYLE_BOLD,       1, 'TTF_STYLE_BOLD should be imported' );
is( TTF_STYLE_BOLD(),     1, 'TTF_STYLE_BOLD() should also be available' );
is( TTF_STYLE_ITALIC,     2, 'TTF_STYLE_ITALIC should be imported' );
is( TTF_STYLE_ITALIC(),   2, 'TTF_STYLE_ITALIC() should also be available' );
is( TTF_STYLE_UNDERLINE,  4, 'TTF_STYLE_UNDERLINE should be imported' );
is( TTF_STYLE_UNDERLINE(), 4,
	'TTF_STYLE_UNDERLINE() should also be available'
);
is( TTF_STYLE_STRIKETHROUGH, 8, 'TTF_STYLE_STRIKETHROUGH should be imported' );
is( TTF_STYLE_STRIKETHROUGH(), 8,
	'TTF_STYLE_STRIKETHROUGH() should also be available'
);

is( SDL::TTF::was_init(),              0,     "[was_init] returns false" );
is( SDL::TTF::init(),                  0,     "[init] succeeded" );
is( SDL::TTF::was_init(),              1,     "[was_init] returns true" );
is( SDL::TTF::quit(),                  undef, "[quit] ran" );
is( SDL::TTF::was_init(),              0,     "[was_init] returns false" );
is( SDL::TTF::init(),                  0,     "[init] succeeded" );
is( SDL::TTF::byte_swapped_unicode(0), undef, "[ttf_byte_swapped_unicode] on" );
is( SDL::TTF::byte_swapped_unicode(1), undef,
	"[ttf_byte_swapped_unicode] off"
);
my $font = SDL::TTF::open_font( $font_filename, 22 );
isa_ok( $font, 'SDL::TTF::Font', "[open_font]" );
isa_ok(
	SDL::TTF::open_font_index( $font_filename, 8, 0 ),
	'SDL::TTF::Font', "[open_font_index]"
);
my $file = SDL::RWOps->new_file( $font_filename, 'r' );
isa_ok( $file, 'SDL::RWOps', "[new_file]" );
isa_ok(
	SDL::TTF::open_font_RW( $file, 0, 12 ),
	'SDL::TTF::Font', "[open_font_RW]"
);
$file = SDL::RWOps->new_file( $font_filename, 'r' );
isa_ok(
	SDL::TTF::open_font_index_RW( $file, 0, 16, 0 ),
	'SDL::TTF::Font', "[open_font_index_RW]"
);

# get_font_style returns the style as a bitmask

my $style = SDL::TTF::get_font_style($font);

is( $style, TTF_STYLE_NORMAL, "[get_font_style] returns TTF_STYLE_NORMAL" );
is( SDL::TTF::set_font_style( $font, TTF_STYLE_BOLD ),
	undef, "[set_font_style] to TTF_STYLE_BOLD"
);

$style = SDL::TTF::get_font_style($font);

ok( $style & TTF_STYLE_BOLD, "[get_font_style] returns TTF_STYLE_BOLD" );
is( SDL::TTF::set_font_style( $font, TTF_STYLE_ITALIC ),
	undef, "[set_font_style] to TTF_STYLE_ITALIC"
);

$style = SDL::TTF::get_font_style($font);
ok( $style & TTF_STYLE_ITALIC, "[get_font_style] returns TTF_STYLE_ITALIC" );

is( SDL::TTF::set_font_style( $font, TTF_STYLE_UNDERLINE ),
	undef, "[set_font_style] to TTF_STYLE_UNDERLINE"
);

$style = SDL::TTF::get_font_style($font);

ok( TTF_STYLE_UNDERLINE, "[get_font_style] returns TTF_STYLE_UNDERLINE" );
is( SDL::TTF::set_font_style( $font, TTF_STYLE_NORMAL ),
	undef, "[set_font_style] to TTF_STYLE_NORMAL"
);
is( SDL::TTF::get_font_style($font),
	TTF_STYLE_NORMAL, "[get_font_style] returns TTF_STYLE_NORMAL"
);

SKIP:
{
	skip( "Version 2.0.10 (or better) needed", 10 ) if $cv < 2.0.10 || $lv < 2.0.10;
	my $font_outline = SDL::TTF::get_font_outline($font);
	ok( $font_outline >= 0, "[get_font_outline] is $font_outline" );
	$font_outline++;
	SDL::TTF::set_font_outline( $font, $font_outline );
	pass "[set_font_outline] to $font_outline";
	is( SDL::TTF::get_font_outline($font),
		$font_outline, "[get_font_outline] is $font_outline"
	);
	SKIP:
	{
		skip( "Font hinting is buggy in SDL_ttf", 3 );
		is( SDL::TTF::get_font_hinting($font),
			TTF_HINTING_NORMAL, "[get_font_hinting] is TTF_HINTING_NORMAL"
		);
		SDL::TTF::set_font_hinting( $font, TTF_HINTING_LIGHT );
		pass "[set_font_hinting] to TTF_HINTING_LIGHT";
		is( SDL::TTF::get_font_hinting($font),
			TTF_HINTING_LIGHT, "[get_font_hinting] is TTF_HINTING_LIGHT"
		);
	}
	my $kerning_allowed = SDL::TTF::get_font_kerning($font);
	like(
		$kerning_allowed, '/^[01]$/',
		"[get_font_kerning] is " . ( $kerning_allowed ? 'allowed' : 'not allowed' )
	);
	SDL::TTF::set_font_kerning( $font, 0 );
	pass "[set_font_kerning to not allowed] ";
	$kerning_allowed = SDL::TTF::get_font_kerning($font);
	is( $kerning_allowed, 0,
		"[get_font_kerning] is " . ( $kerning_allowed ? 'allowed' : 'not allowed' )
	);
	ok( SDL::TTF::glyph_is_provided( $font, "\0M" ) > 0,
		"[glyph_is_provided] is true for character 'M'"
	);
}

my $font_height = SDL::TTF::font_height($font);
ok( $font_height, "[font_height] is $font_height" );

my $font_ascent = SDL::TTF::font_ascent($font);
like(
	$font_ascent, '/^[-]?\d+$/',
	"[font_ascent] offset from the baseline to the top of the font is $font_ascent"
);

my $font_descent = SDL::TTF::font_descent($font);
like(
	$font_descent, '/^[-]?\d+$/',
	"[font_descent] offset from the baseline to the bottom of the font is $font_descent"
);

my $font_line_skip = SDL::TTF::font_line_skip($font);
like(
	$font_line_skip, '/^[-]?\d+$/',
	"[font_line_skip] recommended spacing between lines of text is $font_line_skip"
);

my $font_faces = SDL::TTF::font_faces($font);
ok( $font_faces, "[font_faces] font has $font_faces faces" );

my $font_face_is_fixed_width = SDL::TTF::font_face_is_fixed_width($font);
like(
	$font_face_is_fixed_width, '/^[01]$/',
	"[font_face_is_fixed_width] is $font_face_is_fixed_width"
);

my $font_face_family_name = SDL::TTF::font_face_family_name($font);
ok( $font_face_family_name,
	"[font_face_family_name] is $font_face_family_name"
);

my $font_face_style_name = SDL::TTF::font_face_style_name($font);
ok( $font_face_style_name, "[font_face_style_name] is $font_face_style_name" );

my @glyph_metrics = @{ SDL::TTF::glyph_metrics( $font, "\0M" ) };
is( scalar @glyph_metrics,
	5,
	"[glyph_metrics] (minx, maxx, miny, maxy, advance) = (" . join( ', ', @glyph_metrics ) . ")"
);

my ( $width, $height ) = @{ SDL::TTF::size_text( $font, 'Hallo World!' ) };
ok( $width > 0 && $height > 0, "[size_text] width=$width height=$height" );

( $width, $height ) = @{ SDL::TTF::size_utf8( $font, "Hallo World!" ) };
ok( $width > 0 && $height > 0, "[size_utf8] width=$width height=$height" );
SKIP:
{
	skip( 'Unicode::String is needed for this', 2 )
		unless eval 'use Unicode::String qw(latin1 utf8); 1';
	my $unicode = latin1("Hallo World!");
	( $width, $height ) = @{ SDL::TTF::size_unicode( $font, $unicode->utf16be ) };
	ok( $width > 0 && $height > 0,
		"[size_unicode] width=$width height=$height"
	);
}

SKIP:
{
	skip( 'We need video support for this', 15 )
		unless SDL::TestTool->init(SDL_INIT_VIDEO);

	my $display = SDL::Video::set_video_mode( 640, 480, 32, SDL_SWSURFACE );

	my $y          = 0;
	my $text_fg    = SDL::Color->new( 0xFF, 0xFF, 0xFF );
	my $utf8_fg    = SDL::Color->new( 0x80, 0x80, 0xFF );
	my $glyph_fg   = SDL::Color->new( 0x80, 0xFF, 0x80 );
	my $unicode_fg = SDL::Color->new( 0xFF, 0x80, 0x80 );
	my $bg         = SDL::Color->new( 0x80, 0x80, 0x80 );
	my $black      = SDL::Video::map_RGB( $display->format, 0x00, 0x00, 0x00 );
	SDL::Video::fill_rect( $display, SDL::Rect->new( 0, 0, 640, 480 ), $black );

	my $font = SDL::TTF::open_font( $font_filename, 24 );
	my $render_text_solid = SDL::TTF::render_text_solid( $font, 'render_text_solid', $text_fg );
	isa_ok( $render_text_solid, 'SDL::Surface', "[render_text_solid] " . SDL::get_error() );
	SDL::Video::blit_surface(
		$render_text_solid, SDL::Rect->new( 0, 0, 640, 480 ),
		$display, SDL::Rect->new( 5, $y += 27, 640, 480 )
	);

	my $render_text_shaded = SDL::TTF::render_text_shaded(
		$font, 'render_text_shaded', $text_fg,
		$bg
	);
	isa_ok( $render_text_shaded, 'SDL::Surface', "[render_text_shaded]" );
	SDL::Video::blit_surface(
		$render_text_shaded, SDL::Rect->new( 0, 0, 640, 480 ),
		$display, SDL::Rect->new( 5, $y += 27, 640, 480 )
	);

	my $render_text_blended = SDL::TTF::render_text_blended( $font, 'render_text_blended', $text_fg );
	isa_ok( $render_text_blended, 'SDL::Surface', "[render_text_blended]" );
	SDL::Video::blit_surface(
		$render_text_blended, SDL::Rect->new( 0, 0, 640, 480 ),
		$display, SDL::Rect->new( 5, $y += 27, 640, 480 )
	);

	my $render_utf8_solid = SDL::TTF::render_utf8_solid( $font, "render_utf8_solid", $utf8_fg );
	isa_ok( $render_utf8_solid, 'SDL::Surface', "[render_utf8_solid]" );
	SDL::Video::blit_surface(
		$render_utf8_solid, SDL::Rect->new( 0, 0, 640, 480 ),
		$display, SDL::Rect->new( 5, $y += 27, 640, 480 )
	);

	my $render_utf8_shaded = SDL::TTF::render_utf8_shaded(
		$font, "render_utf8_shaded", $utf8_fg,
		$bg
	);
	isa_ok( $render_utf8_shaded, 'SDL::Surface', "[render_utf8_shaded]" );
	SDL::Video::blit_surface(
		$render_utf8_shaded, SDL::Rect->new( 0, 0, 640, 480 ),
		$display, SDL::Rect->new( 5, $y += 27, 640, 480 )
	);

	my $render_utf8_blended = SDL::TTF::render_utf8_blended( $font, "render_utf8_blended", $utf8_fg );
	isa_ok( $render_utf8_blended, 'SDL::Surface', "[render_utf8_blended]" );
	SDL::Video::blit_surface(
		$render_utf8_blended, SDL::Rect->new( 0, 0, 640, 480 ),
		$display, SDL::Rect->new( 5, $y += 27, 640, 480 )
	);

	my $render_glyph_solid = SDL::TTF::render_glyph_solid( $font, 'r', $glyph_fg );
	isa_ok( $render_glyph_solid, 'SDL::Surface', "[render_glyph_solid]" );
	SDL::Video::blit_surface(
		$render_glyph_solid, SDL::Rect->new( 0, 0, 640, 480 ),
		$display, SDL::Rect->new( 5, $y += 27, 640, 480 )
	);

	my $render_glyph_shaded = SDL::TTF::render_glyph_shaded( $font, 'r', $glyph_fg, $bg );
	isa_ok( $render_glyph_shaded, 'SDL::Surface', "[render_glyph_shaded]" );
	SDL::Video::blit_surface(
		$render_glyph_shaded, SDL::Rect->new( 0, 0, 640, 480 ),
		$display, SDL::Rect->new( 5, $y += 27, 640, 480 )
	);

	my $render_glyph_blended = SDL::TTF::render_glyph_blended( $font, 'r', $glyph_fg );
	isa_ok( $render_glyph_blended, 'SDL::Surface', "[render_glyph_blended]" );
	SDL::Video::blit_surface(
		$render_glyph_blended, SDL::Rect->new( 0, 0, 640, 480 ),
		$display, SDL::Rect->new( 5, $y += 27, 640, 480 )
	);

	SKIP:
	{
		skip( 'Unicode::String is needed for this', 3 )
			unless eval 'use Unicode::String qw(latin1); 1';
		my $unicode              = latin1("render_unicode_solid");
		my $render_unicode_solid = SDL::TTF::render_unicode_solid(
			$font, $unicode->utf16be,
			$unicode_fg
		);
		isa_ok(
			$render_unicode_solid, 'SDL::Surface',
			"[render_unicode_solid]"
		);
		SDL::Video::blit_surface(
			$render_unicode_solid, SDL::Rect->new( 0, 0, 640, 480 ),
			$display, SDL::Rect->new( 5, $y += 27, 640, 480 )
		);

		$unicode = latin1("render_unicode_shaded");
		my $render_unicode_shaded = SDL::TTF::render_unicode_shaded(
			$font,
			"\xFF\xFE" . $unicode->utf16le,
			$unicode_fg, $bg
		);
		isa_ok(
			$render_unicode_shaded, 'SDL::Surface',
			"[render_unicode_shaded]"
		);
		SDL::Video::blit_surface(
			$render_unicode_shaded,
			SDL::Rect->new( 0, 0, 640, 480 ),
			$display, SDL::Rect->new( 5, $y += 27, 640, 480 )
		);

		$unicode = latin1("render_unicode_blended");
		my $render_unicode_blended = SDL::TTF::render_unicode_blended(
			$font, $unicode->utf16be,
			$unicode_fg
		);
		isa_ok(
			$render_unicode_blended, 'SDL::Surface',
			"[render_unicode_blended]"
		);
		SDL::Video::blit_surface(
			$render_unicode_blended,
			SDL::Rect->new( 0, 0, 640, 480 ),
			$display, SDL::Rect->new( 5, $y += 27, 640, 480 )
		);
	}

	SDL::Video::update_rect( $display, 0, 0, 0, 0 );

	SDL::delay(2000);
}

END {

	if ($videodriver) {
		$ENV{SDL_VIDEODRIVER} = $videodriver;
	} else {
		delete $ENV{SDL_VIDEODRIVER};
	}

	done_testing;
}
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