void main_loop() {
struct timespec ptime;
struct timespec ctime;
struct timespec diff;
clock_gettime(CLOCK_MONOTONIC_COARSE, &ctime);
while (running) {
clock_gettime(CLOCK_MONOTONIC_COARSE, &ptime);
reshape_window();
poll_geometry();
process_events();
display_func();
clock_gettime(CLOCK_MONOTONIC_COARSE, &ctime);
diff.tv_sec = ctime.tv_sec - ptime.tv_sec;
diff.tv_nsec = ctime.tv_nsec - ptime.tv_nsec;
long sleeptime = 16666666l - ( diff.tv_sec * 1000000000l + diff.tv_nsec );
diff.tv_sec = 0;
diff.tv_nsec = sleeptime;
while (diff.tv_nsec > 0) {
struct timespec rem;
int i = nanosleep(&diff, &rem);
if (i < 0) {
diff.tv_sec = rem.tv_sec;
diff.tv_nsec = rem.tv_nsec;
} else {
break;
}
}
}
}
static int handle_event(Display *dpy, XEvent *ev)
{
static int win_mapped;
KeySym keysym;
switch(ev->type) {
case MapNotify:
win_mapped = 1;
break;
case UnmapNotify:
win_mapped = 0;
break;
case Expose:
if(win_mapped) {
if(display_rect_func) {
display_rect_func(ev->xexpose.x, ev->xexpose.y, ev->xexpose.width, ev->xexpose.height);
}
if(!ev->xexpose.count && display_func) {
display_func();
}
}
break;
case KeyPress:
case KeyRelease:
keysym = XLookupKeysym((XKeyEvent*)&ev->xkey, 0);
if(keyb_func) {
keyb_func(keysym & 0xff, ev->type == KeyPress);
}
break;
case ClientMessage:
if(ev->xclient.message_type == wm_prot) {
if(ev->xclient.data.l[0] == wm_del) {
return -1;
}
}
break;
case ConfigureNotify:
win_xsz = ev->xconfigure.width;
win_ysz = ev->xconfigure.height;
if(reshape_func) {
reshape_func(win_xsz, win_ysz);
}
break;
default:
break;
}
return 0;
}
void APIENTRY glutMainLoop (void)
{
GLboolean idle;
GLboolean have_event;
XEvent evt;
int visible = 0;
glutPostRedisplay();
if (reshape_func) reshape_func(g_width, g_height);
while (GL_TRUE) {
idle = GL_TRUE;
if (visible && idle_func)
have_event = XCheckMaskEvent( dpy, ~0, &evt );
else
have_event = XNextEvent( dpy, &evt );
if (have_event) {
idle = GL_FALSE;
switch(evt.type) {
case MapNotify:
if (visibility_func) {
visibility_func(GLUT_VISIBLE);
}
visible = 1;
break;
case UnmapNotify:
if (visibility_func) {
visibility_func(GLUT_NOT_VISIBLE);
}
visible = 0;
break;
case Expose:
g_redisplay = 1;
break;
}
}
if (visible && g_redisplay && display_func) {
idle = GL_FALSE;
g_redisplay = GL_FALSE;
display_func();
}
if (visible && idle && idle_func) {
idle_func();
}
}
}
/*
If enabled in menuconfig, this function is periodically called
change "timer(100,app_sample_periodic)" if needed
Wird ca alle 200ms aufgerufen
*/
int16_t rainmaster_periodic(void) {
// Uhrzeit aktualisieren
clock_current_localtime(&date);
// Eingänge und Sensore abfragen
rainmaster_check_inputs();
// GUI Anzeige abarbeiten (Pointer auf Anzeigefunktion im Menu)
display_func();
return ECMD_FINAL_OK;
}
int main ( int argc, char ** argv )
{
//glutInit ( &argc, argv );
if(!glfwInit()) {
fprintf( stderr, "Failed to initialize GLFW\n" );
return EXIT_FAILURE;
}
// GLenum err = glewInit();
// if (GLEW_OK != err) {
// fprintf(stderr, "Error: %s\n", glewGetErrorString(err));
// }
if ( argc != 1 && argc != 6 ) {
fprintf ( stderr, "usage : %s N dt diff visc force source\n", argv[0] );
fprintf ( stderr, "where:\n" );\
fprintf ( stderr, "\t N : grid resolution\n" );
fprintf ( stderr, "\t dt : time step\n" );
fprintf ( stderr, "\t diff : diffusion rate of the density\n" );
fprintf ( stderr, "\t visc : viscosity of the fluid\n" );
fprintf ( stderr, "\t force : scales the mouse movement that generate a force\n" );
fprintf ( stderr, "\t source : amount of density that will be deposited\n" );
exit ( 1 );
}
if ( argc == 1 ) {
N = 64;
dt = 0.1f;
diff = 0.0f;
visc = 0.0f;
force = 5.0f;
source = 100.0f;
fprintf ( stderr, "Using defaults : N=%d dt=%g diff=%g visc=%g force = %g source=%g\n",
N, dt, diff, visc, force, source );
} else {
N = atoi(argv[1]);
dt = atof(argv[2]);
diff = atof(argv[3]);
visc = atof(argv[4]);
force = atof(argv[5]);
source = atof(argv[6]);
}
printf ( "\n\nHow to use this demo:\n\n" );
printf ( "\t Add densities with the right mouse button\n" );
printf ( "\t Add velocities with the left mouse button and dragging the mouse\n" );
printf ( "\t Toggle density/velocity display with the 'v' key\n" );
printf ( "\t Clear the simulation by pressing the 'c' key\n" );
printf ( "\t Quit by pressing the 'q' key\n" );
dvel = 2;
if ( !allocate_data () ) exit ( 1 );
clear_data ();
win_x = 512;
win_y = 512;
open_glut_window ();
while(1) {
idle_func();
display_func();
mouse();
if (!glfwGetWindowParam(GLFW_OPENED)) {
exit(0);
}
}
glfwTerminate();
//glutMainLoop ();
exit ( 0 );
}