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#!/usr/bin/perl -w
#
# Use damage test
#
# $Id: usedamage.pl 1901 2008-01-23 16:57:52Z lemort $
# this simple test has been developped by A.Lemort lemort@intuilab.com
use vars qw( $VERSION );
($VERSION) = sprintf("%d.%02d", q$Revision: 1901 $ =~ /(\d+)\.(\d+)/);
use strict;
use Tk;
use Tk::Zinc;
use Tk::LabFrame;
use Time::HiRes;
#
# Mainwindow
#
my $mw = new MainWindow();
$mw->title("10.000 rectangles and a drag-n-droppable circle");
#
# 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 strange 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 => 600,
)->pack(
-expand => 1,
-fill => 'both',
);
# Seed our random generator
srand(1234567890);
# Add a lot of rectangles
my $Nrect = 10000;
foreach my $i (0...$Nrect) {
$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)');
});
#
# Commands
#
# Benchmark data
my $N = 50;
my $delta = 550/$N;
my $commandFrame = $mw->Frame()->pack(-expand => 1, -fill => 'both');
my $commandFrameTitle = $commandFrame->LabFrame(
-label => 'Automatic benchmark: translate our circle from top-left to bottom-right ('.$N.' steps)',
)->pack(
-side => 'bottom',
-fill => 'both',
-expand => 1,
);
foreach my $i (0...2) {
my $value = $i;
# Label: display result
my $label = $commandFrameTitle->Label(
-text => 'Press button to start benchmark',
)->grid(
-row => $i,
-column => 1,
);
my $button = $commandFrameTitle->Button(
-text => 'Test usedamage='.$value,
-command => sub {
benchmarkUsedamage($label, $value);
},
)->grid(
-row => $i,
-column => 0,
);
}
# Mainloop
MainLoop;
#
# Press
#
sub press {
my ($zinc, $x, $y) = @_;
$X = $x;
$Y = $y;
}
#
# Motion
#
sub motion {
my ($zinc, $x, $y) = @_;
$zinc->translate($circle, $x - $X, $y - $Y);
$X = $x;
$Y = $y;
}
#
# Benchmark usedamage
#
sub benchmarkUsedamage {
my ($label, $usedamage) = @_;
# Get usedamage value
my $previousValue = $zinc->cget('-usedamage');
# Force redisplay
$zinc->tset($circle, 1, 0, 0, 1, 0, 0);
$zinc->itemconfigure($circle, -sensitive => 0);
$zinc->configure(-usedamage => $usedamage);
$zinc->update();
# Get current time
my ($s0, $micros0) = Time::HiRes::gettimeofday();
# Move our circle
foreach my $i (1...$N) {
$zinc->translate($circle, $delta, $delta);
$zinc->update();
}
# Get current time
my ($s, $micros) = Time::HiRes::gettimeofday();
# Calculate delta time in ms
my $time = ($s - $s0)*1000 + ($micros - $micros0)/1000;
# Display time
$label->configure(-text => $time.' ms');
# Restore usedamage
$zinc->configure(-usedamage => $previousValue);
$zinc->itemconfigure($circle, -sensitive => 1);
}
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