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#!/usr/bin/perl -w
#
# Use damage test
#
# $Id$
# this simple test has been developped by A.Lemort lemort@intuilab.com
use vars qw( $VERSION );
($VERSION) = sprintf("%d.%02d", q$Revision$ =~ /(\d+)\.(\d+)/);
use Tk;
use Tk::Zinc;
use strict;
#
# Mainwindow
#
my $mw = new MainWindow();
#
# Text zone
#
my $text = $mw->Scrolled(qw/Text -relief sunken -borderwidth 2 -setgrid true -height 8 -scrollbars e/);
$text->pack(-expand => 1, -fill => 'both');
$text->insert('0.0',
'This toy-app illustrates how the -usedamage property can increase TkZinc performance.
The Following operations are possible:
Press "0" to desactivate OpenGL optimization
Press "1" to activate OpenGL optimization (same result as the old GL_DAMAGE compilation flag). These optimizations work well with Nvidia cards but it creates a stange trail effect with other cards (black trails)
Press "2" to activate OpenGL optimization. These optimizations are a bit slower but they have a much better compatibility'
);
#
# Zinc
#
my $zinc = $mw->Zinc(
-render => 1,
-usedamage => 0,
-relief => 'flat',
-borderwidth => 0,
-highlightthickness => 0,
-width => 700,
-height => 700,
)->pack(
-expand => 1,
-fill => 'both',
);
# Add a lot of rectangles
my $N = 10000;
foreach my $i (0...$N) {
$zinc->add('rectangle', 1, [50 + rand()*500, 50 + rand()*500, 50 + rand()*500, 50 + rand()*500], -filled => 1, -fillcolor => 'blue');
}
# Add a label
my $label = $zinc->add('text', 1, -position => [5, 10], -text => 'usedamage=0: Without OpenGL optimization');
# Add a moveable circle
my $circle = $zinc->add('arc', 1, [0,0,50,50], -filled => 1, -fillcolor => 'red', -linewidth => 2);
$zinc->translate($circle, 50, 50);
# Add bindings to move our circle
my ($X, $Y);
$zinc->bind($circle, '<ButtonPress-1>',[\&press, Ev('x'), Ev('y')]);
$zinc->bind($circle, '<B1-Motion>', [\&motion, Ev('x'), Ev('y')]);
# Add bindings to change the value of usedamage
$mw->bind('<KeyPress-0>', sub {
# No optimization
$zinc->configure(-usedamage => 0);
$zinc->itemconfigure($label, -text => 'usedamage=0: Without OpenGL optimization');
});
$mw->bind('<KeyPress-1>', sub {
# OpenGL optimization (best with Nvidia
$zinc->configure(-usedamage => 1);
$zinc->itemconfigure($label, -text => 'usedamage=1: With OpenGL optimization (better performance but works only with Nvidia cards)');
});
$mw->bind('<KeyPress-2>', sub {
# OpenGL optimization (best with Nvidia
$zinc->configure(-usedamage => 2);
$zinc->itemconfigure($label, -text => 'usedamage=2: With OpenGL optimization (a bit slower but much better compatibility)');
});
# Mainloop
MainLoop;
#
# Press
#
sub press {
my ($zinc, $x, $y) = @_;
$X = $x;
$Y = $y;
}
#
# Motion
#
sub motion {
my ($zinc, $x, $y) = @_;
$zinc->translate($circle, $x - $X, $y - $Y);
$X = $x;
$Y = $y;
}
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