]> git.sur5r.net Git - i3/i3/blobdiff - src/xinerama.c
Fix clang -Wextra except -Wunused-parameter.
[i3/i3] / src / xinerama.c
index 91258a2fa9fedcd82cd7d11b3082e462d6eb10fa..b3e51ac535ae8f628f8e52d3bd33a9c35115b5e9 100644 (file)
+#undef I3__FILE__
+#define I3__FILE__ "xinerama.c"
 /*
- * vim:ts=8:expandtab
+ * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
+ * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
  *
- * (c) 2009 Michael Stapelberg and contributors
- *
- * See file LICENSE for license information.
+ * This is LEGACY code (we support RandR, which can do much more than
+ * Xinerama), but necessary for the poor users of the nVidia binary
+ * driver which does not support RandR in 2011 *sigh*.
  *
  */
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
+#include "all.h"
 
-#include <xcb/xcb.h>
 #include <xcb/xinerama.h>
 
-#include "queue.h"
-#include "i3.h"
-#include "data.h"
-#include "table.h"
-#include "util.h"
-#include "xinerama.h"
-
-/* This TAILQ of Rects stores the virtual screens, used for handling overlapping screens
- * (xrandr --same-as) */
-struct screens_head virtual_screens;
-
-i3Screen *get_screen_at(int x, int y) {
-        i3Screen *screen;
-        TAILQ_FOREACH(screen, &virtual_screens, screens)
-                if (screen->rect.x == x && screen->rect.y == y)
-                        return screen;
 
-        return NULL;
-}
+static int num_screens;
 
-i3Screen *get_screen_containing(int x, int y) {
-        i3Screen *screen;
-        TAILQ_FOREACH(screen, &virtual_screens, screens)
-                if (x > screen->rect.x && x < (screen->rect.x + screen->rect.width) &&
-                    y > screen->rect.y && y < (screen->rect.y + screen->rect.height))
-                        return screen;
+/*
+ * Looks in outputs for the Output whose start coordinates are x, y
+ *
+ */
+static Output *get_screen_at(unsigned int x, unsigned int y) {
+    Output *output;
+    TAILQ_FOREACH(output, &outputs, outputs)
+        if (output->rect.x == x && output->rect.y == y)
+            return output;
 
-        return NULL;
+    return NULL;
 }
 
-
 /*
- * We have just established a connection to the X server and need the initial Xinerama
- * information to setup workspaces for each screen.
+ * Gets the Xinerama screens and converts them to virtual Outputs (only one screen for two
+ * Xinerama screen which are configured in clone mode) in the given screenlist
  *
  */
-void initialize_xinerama(xcb_connection_t *conn) {
-        xcb_xinerama_query_screens_reply_t *reply;
-        xcb_xinerama_screen_info_t *screen_info;
-        int screen;
-
-        if (!xcb_get_extension_data(conn, &xcb_xinerama_id)->present) {
-                printf("Xinerama extension not found, disabling.\n");
-                return;
-        }
-
-        if (!xcb_xinerama_is_active_reply(conn, xcb_xinerama_is_active(conn), NULL)->state) {
-                printf("Xinerama is not active (in your X-Server), disabling.\n");
-                return;
-        }
-
-        reply = xcb_xinerama_query_screens_reply(conn, xcb_xinerama_query_screens_unchecked(conn), NULL);
-        if (!reply) {
-                printf("Couldn’t get active Xinerama screens\n");
-                return;
+static void query_screens(xcb_connection_t *conn) {
+    xcb_xinerama_query_screens_reply_t *reply;
+    xcb_xinerama_screen_info_t *screen_info;
+
+    reply = xcb_xinerama_query_screens_reply(conn, xcb_xinerama_query_screens_unchecked(conn), NULL);
+    if (!reply) {
+        ELOG("Couldn't get Xinerama screens\n");
+        return;
+    }
+    screen_info = xcb_xinerama_query_screens_screen_info(reply);
+    int screens = xcb_xinerama_query_screens_screen_info_length(reply);
+
+    for (int screen = 0; screen < screens; screen++) {
+        Output *s = get_screen_at(screen_info[screen].x_org, screen_info[screen].y_org);
+        if (s != NULL) {
+            DLOG("Re-used old Xinerama screen %p\n", s);
+            /* This screen already exists. We use the littlest screen so that the user
+               can always see the complete workspace */
+            s->rect.width = min(s->rect.width, screen_info[screen].width);
+            s->rect.height = min(s->rect.height, screen_info[screen].height);
+        } else {
+            s = scalloc(sizeof(Output));
+            sasprintf(&(s->name), "xinerama-%d", num_screens);
+            DLOG("Created new Xinerama screen %s (%p)\n", s->name, s);
+            s->active = true;
+            s->rect.x = screen_info[screen].x_org;
+            s->rect.y = screen_info[screen].y_org;
+            s->rect.width = screen_info[screen].width;
+            s->rect.height = screen_info[screen].height;
+            /* We always treat the screen at 0x0 as the primary screen */
+            if (s->rect.x == 0 && s->rect.y == 0)
+                    TAILQ_INSERT_HEAD(&outputs, s, outputs);
+            else TAILQ_INSERT_TAIL(&outputs, s, outputs);
+            output_init_con(s);
+            init_ws_for_output(s, output_get_content(s->con));
+            num_screens++;
         }
-        screen_info = xcb_xinerama_query_screens_screen_info(reply);
-        num_screens = xcb_xinerama_query_screens_screen_info_length(reply);
 
-        TAILQ_INIT(&virtual_screens);
+        DLOG("found Xinerama screen: %d x %d at %d x %d\n",
+                        screen_info[screen].width, screen_info[screen].height,
+                        screen_info[screen].x_org, screen_info[screen].y_org);
+    }
 
-        /* Just go through each workspace and associate as many screens as we can. */
-        for (screen = 0; screen < num_screens; screen++) {
-                i3Screen *s = get_screen_at(screen_info[screen].x_org, screen_info[screen].y_org);
-                if (s!= NULL) {
-                        /* This screen already exists. We use the littlest screen so that the user
-                           can always see the complete workspace */
-                        s->rect.width = min(s->rect.width, screen_info[screen].width);
-                        s->rect.height = min(s->rect.height, screen_info[screen].height);
-                } else {
-                        s = calloc(sizeof(Screen), 1);
-                        s->rect.x = screen_info[screen].x_org;
-                        s->rect.y = screen_info[screen].y_org;
-                        s->rect.width = screen_info[screen].width;
-                        s->rect.height = screen_info[screen].height;
-                        TAILQ_INSERT_TAIL(&virtual_screens, s, screens);
-                }
+    free(reply);
 
-                printf("found Xinerama screen: %d x %d at %d x %d\n",
-                                screen_info[screen].width, screen_info[screen].height,
-                                screen_info[screen].x_org, screen_info[screen].y_org);
-        }
-
-        i3Screen *s;
-        num_screens = 0;
-        TAILQ_FOREACH(s, &virtual_screens, screens) {
-                s->num = num_screens;
-                s->current_workspace = num_screens;
-                workspaces[num_screens].screen = s;
-                memcpy(&(workspaces[num_screens++].rect), &(s->rect), sizeof(Rect));
-                printf("that is virtual screen at %d x %d with %d x %d\n",
-                                s->rect.x, s->rect.y, s->rect.width, s->rect.height);
-        }
+    if (num_screens == 0) {
+        ELOG("No screens found. Please fix your setup. i3 will exit now.\n");
+        exit(0);
+    }
+}
 
-        free(screen_info);
+/*
+ * We have just established a connection to the X server and need the initial Xinerama
+ * information to setup workspaces for each screen.
+ *
+ */
+void xinerama_init(void) {
+    if (!xcb_get_extension_data(conn, &xcb_xinerama_id)->present) {
+        DLOG("Xinerama extension not found, disabling.\n");
+        disable_randr(conn);
+    } else {
+        xcb_xinerama_is_active_reply_t *reply;
+        reply = xcb_xinerama_is_active_reply(conn, xcb_xinerama_is_active(conn), NULL);
+
+        if (reply == NULL || !reply->state) {
+            DLOG("Xinerama is not active (in your X-Server), disabling.\n");
+            disable_randr(conn);
+        } else
+            query_screens(conn);
+
+        FREE(reply);
+    }
+
+#if 0
+    Output *output;
+    Workspace *ws;
+    /* Just go through each active output and associate one workspace */
+    TAILQ_FOREACH(output, &outputs, outputs) {
+        ws = get_first_workspace_for_output(output);
+        initialize_output(conn, output, ws);
+    }
+#endif
 }