// event hook
void microgl_hook(int t, int x, int y)
{
switch (t) {
case EVENT_REDRAW:
glClearColor(0.0, 0.0, 0.0, 0.0);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0.,scm_width(),0.,scm_height(),-1.,1.);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glClear(GL_COLOR_BUFFER_BIT);
ffi_event(EVENT_REDRAW,0,0);
microgl_swapbuffers();
break;
case EVENT_CLOSE:
ffi_event(EVENT_CLOSE,0,0);
microgl_close();
run_flag=0;
break;
default:
ffi_event(t,x,y);
break;
}
}
int main(int argc, char *argv[])
{
int w=0,h=0;
cmd_argc=argc; cmd_argv=argv;
// fork to release terminal (for starting processes on embedded systems)
#if defined(USECONSOLE) && defined(OPENBSD)
signal(SIGHUP,SIG_IGN);
signal(SIGTERM,SIG_IGN);
signal(SIGCHLD,SIG_IGN);
if(fork() != 0) return 0;
chdir("/"); setsid(); umask(0);
if(fork() != 0) return 0;
{ int fd = open("/tmp/stdin",O_RDONLY|O_CREAT);
dup2(fd,STDIN_FILENO);
fd = open("/tmp/stdout",O_WRONLY|O_CREAT);
dup2(fd,STDOUT_FILENO);
fd = open("/tmp/stderr",O_WRONLY|O_CREAT);
dup2(fd,STDERR_FILENO);
}
#endif
#ifndef USECONSOLE
// opengl preparations
microgl_init();
// determine width and height of display
w=microgl_screenwidth(); h=microgl_screenheight();
#endif // USECONSOLE
// allow payload to initialize
ffi_event(EVENT_INIT,w,h);
// handle signals
#ifndef WIN32
signal(SIGHUP,signal_hook);
#endif
signal(SIGTERM,signal_hook);
signal(SIGINT,signal_hook);
#ifndef USECONSOLE
// open a window
if ((w==scm_width()&&h==scm_height())||scm_forcefullscreen()) {
microgl_fullscreen(w,h);
} else {
microgl_window(scm_width(),scm_height());
}
#endif // USECONSOLE
while (run_flag) {
// check for application exit
if (run_flag) run_flag=scm_runflag();
#ifndef USECONSOLE
// check for events
microgl_pollevents();
// ask for a redraw
microgl_refresh();
#else
// generate a fake redraw event
ffi_event(EVENT_REDRAW,0,0);
#endif // USECONSOLE
#ifndef USECONSOLE
// sleep 10ms...
#ifdef WIN32
Sleep(10);
#else
usleep(10000);
#endif
#endif // USECONSOLE
}
if (int_flag) ffi_event(EVENT_CLOSE,0,0);
ffi_event(EVENT_TERMINATE,0,0);
#ifndef USECONSOLE
microgl_close();
#endif
return 1;
}
