void
eglutInit(int argc, char **argv)
{
int i;
for (i = 1; i < argc; i++) {
if (strcmp(argv[i], "-display") == 0)
_eglut->display_name = argv[++i];
else if (strcmp(argv[i], "-info") == 0) {
_eglut->verbose = 1;
}
}
_eglutNativeInitDisplay();
_eglut->dpy = eglGetDisplay(_eglut->native_dpy);
if (!eglInitialize(_eglut->dpy, &_eglut->major, &_eglut->minor))
_eglutFatal("failed to initialize EGL display");
_eglut->init_time = _eglutNow();
printf("EGL_VERSION = %s\n", eglQueryString(_eglut->dpy, EGL_VERSION));
if (_eglut->verbose) {
printf("EGL_VENDOR = %s\n", eglQueryString(_eglut->dpy, EGL_VENDOR));
printf("EGL_EXTENSIONS = %s\n",
eglQueryString(_eglut->dpy, EGL_EXTENSIONS));
printf("EGL_CLIENT_APIS = %s\n",
eglQueryString(_eglut->dpy, EGL_CLIENT_APIS));
}
}
void
_eglutNativeEventLoop(void)
{
int start = _eglutNow();
int frames = 0;
_eglut->redisplay = 1;
while (1) {
struct eglut_window *win = _eglut->current;
int now = _eglutNow();
if (now - start > 5000) {
double elapsed = (double) (now - start) / 1000.0;
printf("%d frames in %3.1f seconds = %6.3f FPS\n",
frames, elapsed, frames / elapsed);
fflush(stdout);
start = now;
frames = 0;
/* send escape */
if (win->keyboard_cb)
win->keyboard_cb(27);
}
if (_eglut->idle_cb)
_eglut->idle_cb();
if (_eglut->redisplay) {
_eglut->redisplay = 0;
if (win->display_cb)
win->display_cb();
eglSwapBuffers(_eglut->dpy, win->surface);
frames++;
}
}
}
int
eglutGet(int state)
{
int val;
switch (state) {
case EGLUT_ELAPSED_TIME:
val = _eglutNow() - _eglut->init_time;
break;
default:
val = -1;
break;
}
return val;
}
