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#========================================================================
# Simple multi-window example
# Copyright (c) Camilla Löwy <elmindreda@glfw.org>
#
# This software is provided 'as-is', without any express or implied
# warranty. In no event will the authors be held liable for any damages
# arising from the use of this software.
#
# Permission is granted to anyone to use this software for any purpose,
# including commercial applications, and to alter it and redistribute it
# freely, subject to the following restrictions:
#
# 1. The origin of this software must not be misrepresented; you must not
# claim that you wrote the original software. If you use this software
# in a product, an acknowledgment in the product documentation would
# be appreciated but is not required.
#
# 2. Altered source versions must be plainly marked as such, and must not
# be misrepresented as being the original software.
#
# 3. This notice may not be removed or altered from any source
# distribution.
#
#========================================================================
use OpenGL::GLFW qw(:all);
use OpenGL::Modern qw(:all);
use OpenGL::Modern::Helpers qw(pack_GLfloat);
my $error_callback = sub {
my ( $error, $description ) = @_;
printf STDERR "Error #%d from perl: %s\n", $error, $description;
};
if ( !glfwInit() ) {
die "Failed to initialize GLFW\n";
}
glfwWindowHint(GLFW_VISIBLE, GLFW_FALSE);
glfwWindowHint(GLFW_DECORATED, GLFW_FALSE);
my $monitor = glfwGetPrimaryMonitor();
my ($xpos,$ypos,$width,$height) = glfwGetMonitorWorkarea($monitor);
my %window;
my @colors = (
[ '0.95', '0.32', '0.11' ],
[ '0.50', '0.80', '0.16' ],
[ '0', '0.68', '0.94' ],
[ '0.98', '0.74', '0.04' ]
);
for (my $i = 0; $i < 4; $i++)
{
my $size = $height / 5;
glfwWindowHint(GLFW_FOCUS_ON_SHOW, GLFW_FALSE) if $i > 0;
$windows{$i} = glfwCreateWindow($size,$size,"Multi-Window Example",NULL,NULL);
if (!$windows{$i})
{
glfwSetErrorCallback( $error_callback );
die "glfwInit failed, $!\n"
}
glfwSetWindowPos($windows{$i}, $xpos + $size * (1 + ($i & 1)), $ypos + $size * (1 + ($i >> 1)));
glfwSetInputMode($windows{$i}, GLFW_STICKY_KEYS, GLFW_TRUE);
glfwMakeContextCurrent($windows{$i});
#gladLoadGL(glfwGetProcAddress);
glClearColor( $colors[$i][0] , $colors[$i][1] , $colors[$i][2] , 1 );
}
for (my $i = 0; $i < 4; $i++) {
glfwShowWindow($windows{$i});
}
for (;;)
{
for (my $i = 0; $i < 4; $i++)
{
glfwMakeContextCurrent($windows{$i});
glClear(GL_COLOR_BUFFER_BIT);
glfwSwapBuffers($windows{$i});
if (glfwWindowShouldClose($windows{$i}) ||
glfwGetKey($windows{$i}, GLFW_KEY_ESCAPE))
{
glfwTerminate();
exit;
}
}
glfwWaitEvents();
}
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