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bfd90409 |
1 | #!/usr/bin/env perl |
2 | # |
3 | # test1.pl |
4 | # |
5 | # Copyright (C) 2005 David J. Goehrig <dgoehrig@cpan.org> |
6 | # |
7 | # ------------------------------------------------------------------------------ |
8 | # |
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. |
13 | # |
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. |
18 | # |
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 |
22 | # |
23 | # ------------------------------------------------------------------------------ |
24 | # |
25 | # Please feel free to send questions, suggestions or improvements to: |
26 | # |
27 | # David J. Goehrig |
28 | # dgoehrig@cpan.org |
29 | # |
30 | |
31 | use strict; |
32 | use SDL; |
33 | use SDL::App; |
34 | use SDL::Surface; |
35 | use SDL::Event; |
36 | use SDL::OpenGL; |
37 | use SDL::OpenGL::Constants; |
38 | |
39 | #for ( keys %main:: ) { |
40 | # print "$_\n"; |
41 | #} |
42 | |
43 | print "Starting $0\n"; |
44 | |
45 | my $app = new SDL::App -w => 800, -h => 600, -d => 16, -gl => 1; |
46 | |
47 | print "Initializing OpenGL settings\n"; |
48 | printf "%-24s%s\n", "GL_RED_SIZE ", $app->attribute( SDL_GL_RED_SIZE() ); |
49 | printf "%-24s%s\n", "GL_GREEN_SIZE ", $app->attribute( SDL_GL_GREEN_SIZE()); |
50 | printf "%-24s%s\n", "GL_BLUE_SIZE ", $app->attribute( SDL_GL_BLUE_SIZE() ); |
51 | printf "%-24s%s\n", "GL_DEPTH_SIZE ", $app->attribute( SDL_GL_DEPTH_SIZE() ); |
52 | printf "%-24s%s\n", "GL_DOUBLEBUFFER ", $app->attribute( SDL_GL_DOUBLEBUFFER() ); |
53 | |
54 | sub DrawScene { |
55 | |
56 | glClear( GL_DEPTH_BUFFER_BIT() |
57 | | GL_COLOR_BUFFER_BIT()); |
58 | |
59 | glLoadIdentity(); |
60 | |
61 | glTranslate(-1.5,0,-6); |
62 | |
63 | glColor(1,1,1); |
64 | |
65 | glBegin(GL_TRIANGLES()); |
66 | glColor(1,0,0) if (@_); |
67 | glVertex(0,1,0); |
68 | glColor(0,1,0) if (@_); |
69 | glVertex(-1,-1,0); |
70 | glColor(0,0,1) if (@_); |
71 | glVertex(1,-1,0); |
72 | glEnd(); |
73 | |
74 | glTranslate(3,0,0); |
75 | |
76 | glBegin(GL_QUADS()); |
77 | glColor(1,0,0) if (@_); |
78 | glVertex(-1,1,0); |
79 | glColor(0,1,0) if (@_); |
80 | glVertex(1,1,0); |
81 | glColor(0,0,1) if (@_); |
82 | glVertex(1,-1,0); |
83 | glColor(1,1,0) if (@_); |
84 | glVertex(-1,-1,0); |
85 | glEnd(); |
86 | } |
87 | |
88 | sub DrawColorScene { |
89 | DrawScene 'with color'; |
90 | } |
91 | |
92 | sub InitView { |
93 | glViewport(0,0,800,600); |
94 | |
95 | glMatrixMode(GL_PROJECTION()); |
96 | glLoadIdentity(); |
97 | |
98 | if ( @_ ) { |
99 | gluPerspective(45.0,4/3,0.1,100.0); |
100 | } else { |
101 | glFrustum(-0.1,0.1,-0.075,0.075,0.175,100.0); |
102 | } |
103 | |
104 | glMatrixMode(GL_MODELVIEW()); |
105 | glLoadIdentity(); |
106 | } |
107 | |
108 | InitView(); |
109 | |
110 | DrawScene(); |
111 | |
112 | $app->sync(); |
113 | |
114 | my $toggle = 1; |
115 | |
116 | $app->loop( { |
117 | SDL_QUIT() => sub { exit(0); }, |
118 | SDL_KEYDOWN() => sub { $toggle = ($toggle) ? 0 : 1; |
119 | ($toggle) ? DrawScene() : DrawColorScene(); |
120 | $app->sync(); |
121 | }, |
122 | } ); |