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
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
|
/*
* Copyright (C) 1999-2001 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* Stolen from eglgears
*
* Creates a surface and show that on the first screen
*/
#define EGL_EGLEXT_PROTOTYPES
#include <assert.h>
#include <math.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <GL/gl.h>
#include <EGL/egl.h>
#include <EGL/eglext.h>
#define MAX_CONFIGS 10
#define MAX_MODES 100
int
main(int argc, char *argv[])
{
int maj, min;
EGLSurface screen_surf;
EGLConfig configs[MAX_CONFIGS];
EGLint numConfigs, i;
EGLBoolean b;
EGLDisplay d;
EGLint screenAttribs[10];
EGLModeMESA mode[MAX_MODES];
EGLScreenMESA screen;
EGLint count, chosenMode;
EGLint width = 0, height = 0;
d = eglGetDisplay(EGL_DEFAULT_DISPLAY);
assert(d);
if (!eglInitialize(d, &maj, &min)) {
printf("eglscreen: eglInitialize failed\n");
exit(1);
}
printf("eglscreen: EGL version = %d.%d\n", maj, min);
printf("eglscreen: EGL_VENDOR = %s\n", eglQueryString(d, EGL_VENDOR));
/* XXX use ChooseConfig */
eglGetConfigs(d, configs, MAX_CONFIGS, &numConfigs);
eglGetScreensMESA(d, &screen, 1, &count);
if (!eglGetModesMESA(d, screen, mode, MAX_MODES, &count) || count == 0) {
printf("eglscreen: eglGetModesMESA failed!\n");
return 0;
}
/* Print list of modes, and find the one to use */
printf("eglscreen: Found %d modes:\n", count);
for (i = 0; i < count; i++) {
EGLint w, h;
eglGetModeAttribMESA(d, mode[i], EGL_WIDTH, &w);
eglGetModeAttribMESA(d, mode[i], EGL_HEIGHT, &h);
printf("%3d: %d x %d\n", i, w, h);
if (w > width && h > height) {
width = w;
height = h;
chosenMode = i;
}
}
printf("eglscreen: Using screen mode/size %d: %d x %d\n", chosenMode, width, height);
/* build up screenAttribs array */
i = 0;
screenAttribs[i++] = EGL_WIDTH;
screenAttribs[i++] = width;
screenAttribs[i++] = EGL_HEIGHT;
screenAttribs[i++] = height;
screenAttribs[i++] = EGL_NONE;
screen_surf = eglCreateScreenSurfaceMESA(d, configs[0], screenAttribs);
if (screen_surf == EGL_NO_SURFACE) {
printf("eglscreen: Failed to create screen surface\n");
return 0;
}
b = eglShowScreenSurfaceMESA(d, screen, screen_surf, mode[chosenMode]);
if (!b) {
printf("eglscreen: Show surface failed\n");
return 0;
}
usleep(5000000);
eglDestroySurface(d, screen_surf);
eglTerminate(d);
return 0;
}
|
