#include "screen.h"
+#include "display.h"
+#include "window.h"
#include "gettext.h"
#include <string.h>
+#include <stdlib.h>
#include <stdio.h>
+#include <xcb/composite.h>
-#define ROOT_MASK (XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY)
+#define ROOT_MASK (XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY | \
+ XCB_EVENT_MASK_STRUCTURE_NOTIFY)
+
+#define SELECTION_MASK (XCB_EVENT_MASK_STRUCTURE_NOTIFY | \
+ XCB_EVENT_MASK_PROPERTY_CHANGE)
+
+static gboolean screen_init(d_screen_t *sc);
+static xcb_timestamp_t screen_timestamp(d_screen_t *sc);
gboolean
-screen_register(xcb_connection_t *conn, d_screen_t *sc)
+screen_register(struct d_display *dpy, int num, d_screen_t *sc)
{
char *name;
- int len, s;
xcb_window_t w;
xcb_intern_atom_cookie_t ack;
xcb_intern_atom_reply_t *arep;
xcb_get_selection_owner_cookie_t sck;
xcb_get_selection_owner_reply_t *srep;
- gboolean taken;
+ uint32_t event_mask;
+ gboolean taken, ret;
- w = xcb_generate_id(conn);
- xcb_create_window(conn, XCB_COPY_FROM_PARENT, w, sc->super.root,
+ sc->dpy = dpy;
+ sc->num = num;
+ w = xcb_generate_id(sc->dpy->conn);
+ event_mask = SELECTION_MASK;
+ xcb_create_window(sc->dpy->conn, XCB_COPY_FROM_PARENT, w, sc->super.root,
0, 0, 1, 1, 0, XCB_WINDOW_CLASS_INPUT_ONLY,
- sc->super.root_visual, 0, NULL);
+ sc->super.root_visual, XCB_CW_EVENT_MASK, &event_mask);
name = g_strdup_printf("_NET_WM_CM_S%d", sc->num);
- ack = xcb_intern_atom(conn, FALSE, strlen(name), name);
- arep = xcb_intern_atom_reply(conn, ack, NULL);
+ ack = xcb_intern_atom(sc->dpy->conn, FALSE, strlen(name), name);
+ arep = xcb_intern_atom_reply(sc->dpy->conn, ack, NULL);
g_free(name);
- sck = xcb_get_selection_owner(conn, arep->atom);
- srep = xcb_get_selection_owner_reply(conn, sck, NULL);
+ xcb_grab_server(sc->dpy->conn);
+
+ sck = xcb_get_selection_owner(sc->dpy->conn, arep->atom);
+ srep = xcb_get_selection_owner_reply(sc->dpy->conn, sck, NULL);
taken = !!srep->owner;
free(srep);
if (taken) {
printf(_("screen %d already has a composite manager, skipping\n"),
sc->num);
- return FALSE;
+ ret = FALSE;
}
+ else {
+ xcb_timestamp_t time;
- xcb_set_selection_owner(conn, w, arep->atom, XCB_CURRENT_TIME);
- sck = xcb_get_selection_owner(conn, arep->atom);
- srep = xcb_get_selection_owner_reply(conn, sck, NULL);
- taken = srep->owner == w;
- if (taken) {
sc->selwin = w;
- return TRUE;
+ sc->selatom = arep->atom;
+
+ time = screen_timestamp(sc);
+
+ xcb_set_selection_owner(sc->dpy->conn, w, arep->atom, time);
+ sck = xcb_get_selection_owner(sc->dpy->conn, arep->atom);
+ srep = xcb_get_selection_owner_reply(sc->dpy->conn, sck, NULL);
+ taken = srep->owner == w;
+ if (taken && screen_init(sc))
+ ret = TRUE;
+ else {
+ xcb_destroy_window(sc->dpy->conn, w);
+ ret = FALSE;
+ }
}
- else {
- xcb_destroy_window(conn, w);
+
+ xcb_ungrab_server(sc->dpy->conn);
+ xcb_flush(sc->dpy->conn);
+ return ret;
+}
+
+static guint
+window_hash(xcb_window_t *w) { return *w; }
+
+static gboolean
+window_compare(xcb_window_t *w1, xcb_window_t *w2) { return *w1 == *w2; }
+
+static gboolean
+screen_init(d_screen_t *sc)
+{
+ uint32_t mask;
+ xcb_generic_error_t *err;
+ xcb_void_cookie_t redir_ck;
+ xcb_composite_get_overlay_window_cookie_t overlay_ck;
+ xcb_composite_get_overlay_window_reply_t *overlay_rep;
+
+ sc->winhash = g_hash_table_new((GHashFunc)window_hash,
+ (GCompareFunc)window_compare);
+
+ redir_ck =
+ xcb_composite_redirect_subwindows(sc->dpy->conn, sc->super.root,
+ XCB_COMPOSITE_REDIRECT_MANUAL);
+
+ overlay_ck = xcb_composite_get_overlay_window(sc->dpy->conn,
+ sc->super.root);
+
+ /* check that the redirect worked */
+ err = xcb_request_check(sc->dpy->conn, redir_ck);
+ if (err) {
+ printf(_("unable to redirect rendering, another composite manager must be running"));
+ free(err);
+ return FALSE;
+ }
+
+ /* get the overlay window reply */
+ overlay_rep = xcb_composite_get_overlay_window_reply(sc->dpy->conn,
+ overlay_ck,
+ NULL);
+ if (!overlay_rep) {
+ printf(_("unable to get the composite overlay window\n"));
return FALSE;
}
+ sc->overlay = overlay_rep->overlay_win;
+ free(overlay_rep);
+
+ mask = SELECTION_MASK;
+ xcb_change_window_attributes(sc->dpy->conn, sc->selwin,
+ XCB_CW_EVENT_MASK, &mask);
+ mask = ROOT_MASK;
+ xcb_change_window_attributes(sc->dpy->conn, sc->super.root,
+ XCB_CW_EVENT_MASK, &mask);
+ return TRUE;
}
-void screen_listen(xcb_connection_t *conn, d_screen_t *sc)
+void
+screen_add_window(d_screen_t *sc, xcb_window_t wid)
{
- const uint32_t mask = ROOT_MASK;
- xcb_change_window_attributes(conn, sc->super.root,
- XCB_CW_EVENT_MASK, &mask);
+ d_window_t *w;
+
+ /* XXX xgetwindowattributes - size and tings */
+
+ w = window_new(wid, sc);
+ g_hash_table_insert(sc->winhash, &w->id, w);
+
+ printf("screen added window 0x%x\n", w->id);
+}
+
+void
+screen_remove_window(d_screen_t *sc, struct d_window *w)
+{
+ printf("screen removed window 0x%x\n", w->id);
+
+ g_hash_table_remove(sc->winhash, &w->id);
+ window_unref(w);
+}
+
+d_window_t*
+screen_find_window(d_screen_t *sc, xcb_window_t id)
+{
+ return g_hash_table_lookup(sc->winhash, &id);
+}
+
+static xcb_timestamp_t
+screen_timestamp(d_screen_t *sc)
+{
+ xcb_void_cookie_t ck;
+ xcb_timestamp_t time;
+
+ ck = xcb_change_property(sc->dpy->conn, XCB_PROP_MODE_REPLACE, sc->selwin,
+ sc->selatom, sc->selatom, 32, 0, NULL);
+ xcb_flush(sc->dpy->conn);
+ while (1) {
+ xcb_generic_event_t *ev;
+
+ ev = xcb_wait_for_event(sc->dpy->conn);
+ if (!ev) {
+ printf(_("IO error\n"));
+ exit(0);
+ }
+
+ /* expect errors.. */
+ if (!ev->response_type) {
+ display_error(sc->dpy, (xcb_generic_error_t*)ev);
+ free(ev);
+ continue;
+ }
+
+ if (ev->response_type == XCB_PROPERTY_NOTIFY &&
+ ev->full_sequence == ck.sequence)
+ {
+ time = ((xcb_property_notify_event_t*)ev)->time;
+ free(ev);
+ break;
+ }
+ }
+ printf("created timestamp %lu\n", (unsigned long) time);
+ return time;
}
projects / dana / dcompmgr.git / blobdiff