5 # Copyright (C) 2005 David J. Goehrig <dgoehrig@cpan.org>
7 # ------------------------------------------------------------------------------
9 # This library is free software; you can redistribute it and/or
10 # modify it under the terms of the GNU Lesser General Public
11 # License as published by the Free Software Foundation; either
12 # version 2.1 of the License, or (at your option) any later version.
14 # This library is distributed in the hope that it will be useful,
15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 # Lesser General Public License for more details.
19 # You should have received a copy of the GNU Lesser General Public
20 # License along with this library; if not, write to the Free Software
21 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 # ------------------------------------------------------------------------------
25 # Please feel free to send questions, suggestions or improvements to:
39 our @ISA = qw(SDL::Surface);
47 my $class = ref($proto) || $proto;
50 verify (%options, qw/ -opengl -gl -fullscreen -full -resizeable
51 -title -t -icon_title -it -icon -i
52 -width -w -height -h -depth -d -flags -f
53 -red_size -r -blue_size -b -green_size -g -alpha_size -a
54 -red_accum_size -ras -blue_accum_size -bas
55 -green_accum_sizee -gas -alpha_accum_size -aas
56 -double_buffer -db -buffer_size -bs -stencil_size -st
60 SDL::Init(SDL::SDL_INIT_EVERYTHING());
62 my $t = $options{-title} || $options{-t} || $0;
63 my $it = $options{-icon_title} || $options{-it} || $t;
64 my $ic = $options{-icon} || $options{-i} || "";
65 my $w = $options{-width} || $options{-w} || 800;
66 my $h = $options{-height} || $options{-h} || 600;
67 my $d = $options{-depth} || $options{-d} || 16;
68 my $f = $options{-flags} || $options{-f} || SDL::SDL_ANYFORMAT();
69 my $r = $options{-red_size} || $options{-r} || 5;
70 my $g = $options{-green_size} || $options{-g} || 5;
71 my $b = $options{-blue_size} || $options{-b} || 5;
72 my $a = $options{-alpha_size} || $options{-a} || 0;
73 my $ras = $options{-red_accum_size} || $options{-ras} || 0;
74 my $gas = $options{-green_accum_size} || $options{-gas} || 0;
75 my $bas = $options{-blue_accum_size} || $options{-bas} || 0;
76 my $aas = $options{-alpha_accum_size} || $options{-aas} || 0;
77 my $db = $options{-double_buffer} || $options{-db} || 0;
79 my $bs = $options{-buffer_size} || $options{-bs} || 0;
80 my $st = $options{-stencil_size} || $options{-st} || 0;
81 my $async = $options{-asyncblit} || 0;
83 $f |= SDL::SDL_OPENGL() if ($options{-gl} || $options{-opengl});
84 $f |= SDL::SDL_FULLSCREEN() if ($options{-fullscreen} || $options{-full});
85 $f |= SDL::SDL_RESIZABLE() if ($options{-resizeable});
86 $f |= SDL::SDL_DOUBLEBUF() if ($db);
87 $f |= SDL::SDL_ASYNCBLIT() if ($async);
89 if ($f & SDL::SDL_OPENGL()) {
90 $SDL::App::USING_OPENGL = 1;
91 SDL::GLSetAttribute(SDL::SDL_GL_RED_SIZE(),$r) if ($r);
92 SDL::GLSetAttribute(SDL::SDL_GL_GREEN_SIZE(),$g) if ($g);
93 SDL::GLSetAttribute(SDL::SDL_GL_BLUE_SIZE(),$b) if ($b);
94 SDL::GLSetAttribute(SDL::SDL_GL_ALPHA_SIZE(),$a) if ($a);
96 SDL::GLSetAttribute(SDL::SDL_GL_RED_ACCUM_SIZE(),$ras) if ($ras);
97 SDL::GLSetAttribute(SDL::SDL_GL_GREEN_ACCUM_SIZE(),$gas) if ($gas);
98 SDL::GLSetAttribute(SDL::SDL_GL_BLUE_ACCUM_SIZE(),$bas) if ($bas);
99 SDL::GLSetAttribute(SDL::SDL_GL_ALPHA_ACCUM_SIZE(),$aas) if ($aas);
101 SDL::GLSetAttribute(SDL::SDL_GL_DOUBLEBUFFER(),$db) if ($db);
102 SDL::GLSetAttribute(SDL::SDL_GL_BUFFER_SIZE(),$bs) if ($bs);
103 SDL::GLSetAttribute(SDL::SDL_GL_DEPTH_SIZE(),$d);
105 $SDL::App::USING_OPENGL = 0;
108 my $self = \SDL::SetVideoMode($w,$h,$d,$f)
109 or die SDL::GetError();
111 if ($ic and -e $ic) {
112 my $icon = new SDL::Surface -name => $ic;
113 SDL::WMSetIcon($$icon);
116 SDL::WMSetCaption($t,$it);
123 my ($self,$w,$h) = @_;
124 my $flags = SDL::SurfaceFlags($$self);
125 if ( $flags & SDL::SDL_RESIZABLE()) {
126 my $bpp = SDL::SurfaceBitsPerPixel($$self);
127 $self = \SDL::SetVideoMode($w,$h,$bpp,$flags);
136 $icon = shift || $title;
137 SDL::WMSetCaption($title,$icon);
139 return SDL::WMGetCaption();
149 return SDL::GetTicks();
153 return SDL::GetError();
163 SDL::WMToggleFullScreen($$self);
168 SDL::WMIconifyWindow();
171 sub grab_input ($$) {
172 my ($self,$mode) = @_;
173 SDL::WMGrabInput($mode);
177 my ($self,$href) = @_;
178 my $event = new SDL::Event;
179 while ( $event->wait() ) {
180 if ( ref($$href{$event->type()}) eq "CODE" ) {
181 &{$$href{$event->type()}}($event);
189 if ($SDL::App::USING_OPENGL) {
196 sub attribute ($$;$) {
197 my ($self,$mode,$value) = @_;
198 return undef unless ($SDL::App::USING_OPENGL);
199 if (defined $value) {
200 SDL::GLSetAttribute($mode,$value);
202 my $returns = SDL::GLGetAttribute($mode);
203 die "SDL::App::attribute failed to get GL attribute" if ($$returns[0] < 0);
215 SDL::App - a SDL perl extension
219 my $app = new SDL::App (
220 -title => 'Application Title',
227 L<SDL::App> controls the root window of the of your SDL based application.
228 It extends the L<SDL_Surface> class, and provides an interface to the window
229 manager oriented functions.
235 C<SDL::App::new> initializes the SDL, creates a new screen,
236 and initializes some of the window manager properties.
237 C<SDL::App::new> takes a series of named parameters:
277 C<SDL::App::title> takes 0, 1, or 2 arguments. It returns the current
278 application window title. If one parameter is passed, both the window
279 title and icon title will be set to its value. If two parameters are
280 passed the window title will be set to the first, and the icon title
285 C<SDL::App::delay> takes 1 argument, and will sleep the application for
290 C<SDL::App::ticks> returns the number of ms since the application began.
294 C<SDL::App::error> returns the last error message set by the SDL.
298 C<SDL::App::resize> takes a new height and width of the application
299 if the application was originally created with the -resizable option.
303 C<SDL::App::fullscreen> toggles the application in and out of fullscreen mode.
307 C<SDL::App::iconify> iconifies the applicaiton window.
311 C<SDL::App::grab_input> can be used to change the input focus behavior of
312 the application. It takes one argument, which should be one of the following:
329 C<SDL::App::loop> is a simple event loop method which takes a reference to a hash
330 of event handler subroutines. The keys of the hash must be SDL event types such
331 as SDL_QUIT(), SDL_KEYDOWN(), and the like. The event method recieves as its parameter
332 the event object used in the loop.
336 my $app = new SDL::App -title => "test.app",
342 SDL_QUIT() => sub { exit(0); },
343 SDL_KEYDOWN() => sub { print "Key Pressed" },
346 $app->loop(\%actions);
350 C<SDL::App::sync> encapsulates the various methods of syncronizing the screen with the
351 current video buffer. C<SDL::App::sync> will do a fullscreen update, using the double buffer
352 or OpenGL buffer if applicable. This is prefered to calling flip on the application window.
354 =head2 attribute ( attr, [value] )
356 C<SDL::App::attribute> allows one to set and get GL attributes. By passing a value
357 in addition to the attribute selector, the value will be set. C<SDL:::App::attribute>
358 always returns the current value of the given attribute, or dies on failure.
366 L<perl> L<SDL::Surface> L<SDL::Event> L<SDL::OpenGL>