-int main(int argc, char **argv)
+#include "screen.h"
+#include "window.h"
+#include "list.h"
+#include "display.h"
+#include "gettext.h"
+#include "time.h"
+#include "render.h"
+
+#include <glib.h>
+#include <stdio.h>
+#include <sys/select.h>
+#include <stdlib.h>
+#include <string.h>
+#include <xcb/xcb.h>
+
+typedef struct {
+ int foo;
+} d_options_t;
+
+static void
+read_options(int argc, char **argv, d_options_t *opts)
{
+ opts->foo = argc && argv;
+}
+
+static void
+event(d_display_t *dpy)
+{
+ xcb_generic_event_t *ev;
+
+ while ((ev = xcb_poll_for_event(dpy->conn))) {
+ printf("event %d\n", ev->response_type);
+
+ if (!ev->response_type) {
+ display_error(dpy, (xcb_generic_error_t*)ev);
+ free(ev);
+ continue;
+ }
+
+ switch (ev->response_type) {
+ case XCB_CREATE_NOTIFY:
+ {
+ xcb_create_notify_event_t *cev;
+ d_screen_t *sc;
+
+ cev = (xcb_create_notify_event_t*)ev;
+ sc = display_screen_from_root(dpy, cev->parent);
+ if (!sc) break;
+ screen_add_window(sc, cev->window);
+ break;
+ }
+ case XCB_DESTROY_NOTIFY:
+ {
+ xcb_destroy_notify_event_t *dev;
+ d_screen_t *sc;
+ d_window_t *w;
+
+ dev = (xcb_destroy_notify_event_t*)ev;
+ sc = display_screen_from_root(dpy, dev->event);
+ if (!sc) break;
+ w = screen_find_window(sc, dev->window);
+ sc->window_hide(w);
+ screen_remove_window(sc, w);
+ printf("** refresh needed **\n");
+ screen_refresh(sc);
+ break;
+ }
+ case XCB_REPARENT_NOTIFY:
+ {
+ xcb_reparent_notify_event_t *rev;
+ d_screen_t *sc;
+ d_window_t *w;
+
+ rev = (xcb_reparent_notify_event_t*)ev;
+ sc = display_screen_from_root(dpy, rev->event);
+ if (!sc) break;
+ w = screen_find_window(sc, rev->window);
+ if (rev->parent == sc->super.root)
+ screen_add_window(sc, rev->window);
+ else {
+ sc->window_hide(w);
+ screen_remove_window(sc, w);
+ }
+ break;
+ }
+ case XCB_MAP_NOTIFY:
+ {
+ xcb_map_notify_event_t *mev;
+ d_screen_t *sc;
+ d_window_t *w;
+
+ mev = (xcb_map_notify_event_t*)ev;
+ sc = display_screen_from_root(dpy, mev->event);
+ if (!sc) break;
+ w = screen_find_window(sc, mev->window);
+ sc->window_show(w);
+ break;
+ }
+ case XCB_UNMAP_NOTIFY:
+ {
+ xcb_unmap_notify_event_t *mev;
+ d_screen_t *sc;
+ d_window_t *w;
+
+ mev = (xcb_unmap_notify_event_t*)ev;
+ sc = display_screen_from_root(dpy, mev->event);
+ if (!sc) break;
+ w = screen_find_window(sc, mev->window);
+ sc->window_hide(w);
+ break;
+ }
+ default:
+ break;
+ }
+ free(ev);
+ }
+}
+
+static void
+paint(d_display_t *dpy)
+{
+ d_list_it_t *it;
+ struct timeval now;
+
+ gettimeofday(&now, NULL);
+
+ for (it = list_top(dpy->screens); it; it = it->next) {
+ d_screen_t *sc = it->data;
+
+ if (time_compare(&sc->next_repaint, &now) <= 0)
+ sc->screen_paint(sc);
+ }
+}
+
+static void
+run(d_display_t *dpy)
+{
+ gboolean quit;
+
+ paint(dpy);
+
+ quit = FALSE;
+ while (!quit) {
+ struct timeval next, now, *wait;
+ int r, npaint;
+ d_list_it_t *it;
+ fd_set fds;
+
+ npaint = 0;
+ for (it = list_top(dpy->screens); it; it = it->next) {
+ d_screen_t *sc = it->data;
+ if (sc->need_repaint &&
+ (!npaint || time_compare(&sc->next_repaint, &next) < 0))
+ {
+ next = sc->next_repaint;
+ ++npaint;
+ }
+ }
+
+ gettimeofday(&now, 0);
+
+ if (!npaint)
+ /* wait forever, there is nothing that needs drawing */
+ wait = NULL;
+ else if (time_compare(&next, &now) > 0) {
+ /* wait until the next allowed redraw time */
+ time_difference(&next, &now, &next);
+ wait = &next;
+ }
+ else {
+ /* don't wait cuz a redraw is due now already */
+ next.tv_sec = 0;
+ next.tv_usec = 0;
+ wait = &next;
+ }
+
+ FD_ZERO(&fds);
+ FD_SET(dpy->fd, &fds);
+
+ r = select(dpy->fd+1, &fds, NULL, NULL, wait);
+ if (r < 0)
+ printf("select error\n");
+ else if (r == 0) {
+ printf("select timeout\n");
+ paint(dpy);
+ }
+ else {
+ printf("select data\n");
+ /*if (FD_ISSET(dpy->fd, &fds))*/ {
+ event(dpy);
+ }
+ }
+
+ if (xcb_connection_has_error(dpy->conn))
+ quit = TRUE;
+ else
+ xcb_flush(dpy->conn);
+ }
+}
+
+static void
+setup_functions(d_display_t *dpy)
+{
+ d_list_it_t *it;
+
+ for (it = list_top(dpy->screens); it; it = it->next) {
+ d_screen_t *sc = it->data;
+ screen_setup_default_functions(sc);
+
+ /* these can be plugins.. */
+ render_init(sc);
+ }
+}
+
+static void
+cleanup_functions(d_display_t *dpy)
+{
+ d_list_it_t *it;
+
+ for (it = list_top(dpy->screens); it; it = it->next) {
+ d_screen_t *sc = it->data;
+
+ /* these can be plugins.. */
+ render_free(sc);
+ }
+}
+
+int
+main(int argc, char **argv)
+{
+ d_display_t *dpy;
+ d_options_t opts;
+
+ read_options(argc, argv, &opts);
+
+ dpy = display_open(NULL);
+ if (!dpy) {
+ printf(_("Unable to connect to display\n"));
+ return 1;
+ }
+
+ if (!dpy->composite.present) {
+ printf(_("no composite extension present on the display\n"));
+ display_unref(dpy);
+ return 1;
+ }
+ if (!dpy->xfixes.present) {
+ printf(_("no xfixes extension present on the display\n"));
+ display_unref(dpy);
+ return 1;
+ }
+ if (!dpy->damage.present) {
+ printf(_("no damage extension present on the display\n"));
+ display_unref(dpy);
+ return 1;
+ }
+ if (!dpy->render.present) {
+ printf(_("no render extension present on the display\n"));
+ display_unref(dpy);
+ return 1;
+ }
+ if (dpy->composite.major_version <= 0 && dpy->composite.minor_version < 3)
+ {
+ printf(_("composite extension does not support the overlay window"));
+ display_unref(dpy);
+ return 1;
+ }
+
+ if (!display_claim_screens(dpy)) {
+ printf(_("found no screens to run on\n"));
+ display_unref(dpy);
+ return 0;
+ }
+
+ setup_functions(dpy);
+
+ run(dpy);
+
+ cleanup_functions(dpy);
+
+ display_unref(dpy);
+ return 0;
}