1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
|
/*
* Trivial GL demo; flashes the screen. Showing how simple life is with eglapp.
*
* Copyright © 2013 Canonical Ltd.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Author: Daniel van Vugt <daniel.van.vugt@canonical.com>
*/
#include "eglapp.h"
#include <stdio.h>
#include <unistd.h>
#include <GLES2/gl2.h>
int main(void)
{
int width = 0, height = 0; /* Use the full display */
if (!mir_eglapp_init(&width, &height))
{
printf("Can't initialize EGL\n");
return 1;
}
/* This is probably the simplest GL you can do */
while (mir_eglapp_running())
{
glClearColor(1.0f, 0.0f, 0.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT);
mir_eglapp_swap_buffers();
sleep(1);
glClearColor(0.0f, 1.0f, 0.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT);
mir_eglapp_swap_buffers();
sleep(1);
glClearColor(0.0f, 0.0f, 1.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT);
mir_eglapp_swap_buffers();
sleep(1);
}
mir_eglapp_shutdown();
return 0;
}
|