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
|
/*
* Exercise EGL API functions
*/
#include <GLES/egl.h>
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
int
main(int argc, char *argv[])
{
int maj, min;
EGLContext ctx;
EGLSurface pbuffer;
EGLConfig configs[10];
EGLint numConfigs, i;
EGLBoolean b;
const EGLint pbufAttribs[] = {
EGL_WIDTH, 500,
EGL_HEIGHT, 500,
EGL_NONE
};
/*
EGLDisplay d = eglGetDisplay(EGL_DEFAULT_DISPLAY);
*/
EGLDisplay d = eglGetDisplay("!demo");
assert(d);
if (!eglInitialize(d, &maj, &min)) {
printf("demo: eglInitialize failed\n");
exit(1);
}
printf("EGL version = %d.%d\n", maj, min);
printf("EGL_VENDOR = %s\n", eglQueryString(d, EGL_VENDOR));
eglGetConfigs(d, configs, 10, &numConfigs);
printf("Got %d EGL configs:\n", numConfigs);
for (i = 0; i < numConfigs; i++) {
EGLint id, red, depth;
eglGetConfigAttrib(d, configs[i], EGL_CONFIG_ID, &id);
eglGetConfigAttrib(d, configs[i], EGL_RED_SIZE, &red);
eglGetConfigAttrib(d, configs[i], EGL_DEPTH_SIZE, &depth);
printf("%2d: Red Size = %d Depth Size = %d\n", id, red, depth);
}
ctx = eglCreateContext(d, configs[0], EGL_NO_CONTEXT, NULL);
if (ctx == EGL_NO_CONTEXT) {
printf("failed to create context\n");
return 0;
}
pbuffer = eglCreatePbufferSurface(d, configs[0], pbufAttribs);
if (pbuffer == EGL_NO_SURFACE) {
printf("failed to create pbuffer\n");
return 0;
}
b = eglMakeCurrent(d, pbuffer, pbuffer, ctx);
if (!b) {
printf("make current failed\n");
return 0;
}
b = eglMakeCurrent(d, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
eglDestroySurface(d, pbuffer);
eglDestroyContext(d, ctx);
eglTerminate(d);
return 0;
}
|
