+#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 Michael Stapelberg and contributors (see also: LICENSE)
*
- * © 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 <stdbool.h>
-#include <assert.h>
-#include <time.h>
-#include <unistd.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"
-#include "layout.h"
-#include "xcb.h"
-#include "config.h"
-#include "workspace.h"
-
-/* This TAILQ of i3Screens stores the virtual screens, used for handling overlapping screens
- * (xrandr --same-as) */
-struct screens_head *virtual_screens;
-
-static bool xinerama_enabled = true;
-
-/*
- * Returns true if both screen objects describe the same screen (checks their
- * size and position).
- *
- */
-bool screens_are_equal(i3Screen *screen1, i3Screen *screen2) {
- /* If one of both objects (or both) are NULL, we cannot compare them */
- if (screen1 == NULL || screen2 == NULL)
- return false;
-
- /* If the pointers are equal, take the short-circuit */
- if (screen1 == screen2)
- return true;
-
- /* Compare their size - other properties are not relevant to determine
- * if a screen is equal to another one */
- return (memcmp(&(screen1->rect), &(screen2->rect), sizeof(Rect)) == 0);
-}
-
-/*
- * Looks in virtual_screens for the i3Screen whose start coordinates are x, y
- *
- */
-i3Screen *get_screen_at(int x, int y, struct screens_head *screenlist) {
- i3Screen *screen;
- TAILQ_FOREACH(screen, screenlist, screens)
- if (screen->rect.x == x && screen->rect.y == y)
- return screen;
-
- return NULL;
-}
+static int num_screens;
/*
- * Looks in virtual_screens for the i3Screen which contains coordinates x, y
+ * Looks in outputs for the Output whose start coordinates are x, y
*
*/
-i3Screen *get_screen_containing(int x, int y) {
- i3Screen *screen;
- TAILQ_FOREACH(screen, virtual_screens, screens) {
- LOG("comparing x=%d y=%d with x=%d and y=%d width %d height %d\n",
- x, y, screen->rect.x, screen->rect.y, screen->rect.width, screen->rect.height);
- 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;
- }
+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;
}
/*
- * Gets the screen which is the last one in the given direction, for example the screen
- * on the most bottom when direction == D_DOWN, the screen most right when direction == D_RIGHT
- * and so on.
- *
- * This function always returns a 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
*
*/
-i3Screen *get_screen_most(direction_t direction, i3Screen *current) {
- i3Screen *screen, *candidate = NULL;
- int position = 0;
- TAILQ_FOREACH(screen, virtual_screens, screens) {
- /* Repeated calls of WIN determine the winner of the comparison */
- #define WIN(variable, condition) \
- if (variable condition) { \
- candidate = screen; \
- position = variable; \
- } \
- break;
-
- if (((direction == D_UP) || (direction == D_DOWN)) &&
- (current->rect.x != screen->rect.x))
- continue;
-
- if (((direction == D_LEFT) || (direction == D_RIGHT)) &&
- (current->rect.y != screen->rect.y))
- continue;
-
- switch (direction) {
- case D_UP:
- WIN(screen->rect.y, <= position);
- case D_DOWN:
- WIN(screen->rect.y, >= position);
- case D_LEFT:
- WIN(screen->rect.x, <= position);
- case D_RIGHT:
- WIN(screen->rect.x, >= position);
- }
+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(1, 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++;
}
- assert(candidate != NULL);
-
- return candidate;
-}
-
-static void initialize_screen(xcb_connection_t *conn, i3Screen *screen, Workspace *workspace) {
- i3Font *font = load_font(conn, config.font);
+ 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);
+ }
- workspace->screen = screen;
- screen->current_workspace = workspace;
+ free(reply);
- /* Create a bar for each screen */
- Rect bar_rect = {screen->rect.x,
- screen->rect.y + screen->rect.height - (font->height + 6),
- screen->rect.x + screen->rect.width,
- font->height + 6};
- uint32_t mask = XCB_CW_OVERRIDE_REDIRECT | XCB_CW_EVENT_MASK;
- uint32_t values[] = {1, XCB_EVENT_MASK_EXPOSURE | XCB_EVENT_MASK_BUTTON_PRESS};
- screen->bar = create_window(conn, bar_rect, XCB_WINDOW_CLASS_INPUT_OUTPUT, XCB_CURSOR_LEFT_PTR, true, mask, values);
- screen->bargc = xcb_generate_id(conn);
- xcb_create_gc(conn, screen->bargc, screen->bar, 0, 0);
-
- SLIST_INIT(&(screen->dock_clients));
-
- LOG("that is virtual screen at %d x %d with %d x %d\n",
- screen->rect.x, screen->rect.y, screen->rect.width, screen->rect.height);
-}
-
-/*
- * Fills virtual_screens with exactly one screen with width/height of the whole X server.
- *
- */
-static void disable_xinerama(xcb_connection_t *conn) {
- xcb_screen_t *root_screen = xcb_setup_roots_iterator(xcb_get_setup(conn)).data;
-
- i3Screen *s = calloc(sizeof(i3Screen), 1);
-
- s->rect.x = 0;
- s->rect.y = 0;
- s->rect.width = root_screen->width_in_pixels;
- s->rect.height = root_screen->height_in_pixels;
-
- num_screens = 1;
- s->num = 0;
-
- TAILQ_INSERT_TAIL(virtual_screens, s, screens);
-
- xinerama_enabled = false;
-}
-
-/*
- * Gets the Xinerama screens and converts them to virtual i3Screens (only one screen for two
- * Xinerama screen which are configured in clone mode) in the given screenlist
- *
- */
-static void query_screens(xcb_connection_t *conn, struct screens_head *screenlist) {
- xcb_xinerama_query_screens_reply_t *reply;
- xcb_xinerama_screen_info_t *screen_info;
- time_t before_trying = time(NULL);
-
- /* Try repeatedly to find screens (there might be short timeframes in
- * which the X server does not return any screens, such as when rotating
- * screens), but not longer than 5 seconds (strictly speaking, only four
- * seconds of trying are guaranteed due to the 1-second-resolution) */
- while ((time(NULL) - before_trying) < 10) {
- reply = xcb_xinerama_query_screens_reply(conn, xcb_xinerama_query_screens_unchecked(conn), NULL);
- if (!reply) {
- LOG("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);
- num_screens = 0;
-
- for (int screen = 0; screen < screens; screen++) {
- i3Screen *s = get_screen_at(screen_info[screen].x_org, screen_info[screen].y_org, screenlist);
- 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(i3Screen), 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;
- /* We always treat the screen at 0x0 as the primary screen */
- if (s->rect.x == 0 && s->rect.y == 0)
- TAILQ_INSERT_HEAD(screenlist, s, screens);
- else TAILQ_INSERT_TAIL(screenlist, s, screens);
- num_screens++;
- }
-
- LOG("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);
- }
-
- free(reply);
-
- if (num_screens == 0) {
- LOG("No screens found. This is weird. Trying again...\n");
- /* Give the scheduler a chance to do something else
- * and don’t hog the CPU */
- usleep(250);
- continue;
- }
-
- break;
- }
-
- if (num_screens == 0) {
- LOG("No screens found for 10 seconds. Please fix your setup. i3 will exit now.\n");
- exit(0);
- }
+ if (num_screens == 0) {
+ ELOG("No screens found. Please fix your setup. i3 will exit now.\n");
+ exit(0);
+ }
}
/*
* information to setup workspaces for each screen.
*
*/
-void initialize_xinerama(xcb_connection_t *conn) {
- virtual_screens = scalloc(sizeof(struct screens_head));
- TAILQ_INIT(virtual_screens);
-
- if (!xcb_get_extension_data(conn, &xcb_xinerama_id)->present) {
- LOG("Xinerama extension not found, disabling.\n");
- disable_xinerama(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) {
- LOG("Xinerama is not active (in your X-Server), disabling.\n");
- disable_xinerama(conn);
- } else
- query_screens(conn, virtual_screens);
-
- FREE(reply);
- }
-
- i3Screen *screen;
- num_screens = 0;
- /* Just go through each workspace and associate as many screens as we can. */
- TAILQ_FOREACH(screen, virtual_screens, screens) {
- screen->num = num_screens;
- num_screens++;
- Workspace *ws = get_first_workspace_for_screen(virtual_screens, screen);
- initialize_screen(conn, screen, ws);
- }
-}
-
-/*
- * This is called when the rootwindow receives a configure_notify event and therefore the
- * number/position of the Xinerama screens could have changed.
- *
- */
-void xinerama_requery_screens(xcb_connection_t *conn) {
- i3Font *font = load_font(conn, config.font);
-
- /* POSSIBLE PROBLEM: Is the order of the Xinerama screens always constant? That is, can
- it change when I move the --right-of video projector to --left-of? */
-
- if (!xinerama_enabled) {
- LOG("Xinerama is disabled\n");
- return;
- }
-
- /* We use a separate copy to diff with the previous set of screens */
- struct screens_head *new_screens = scalloc(sizeof(struct screens_head));
- TAILQ_INIT(new_screens);
-
- query_screens(conn, new_screens);
-
- i3Screen *first = TAILQ_FIRST(new_screens),
- *screen,
- *old_screen;
- int screen_count = 0;
- /* Mark each workspace which currently is assigned to a screen, so we
- * can garbage-collect afterwards */
- Workspace *ws;
- TAILQ_FOREACH(ws, workspaces, workspaces)
- ws->reassigned = (ws->screen == NULL);
-
- TAILQ_FOREACH(screen, new_screens, screens) {
- screen->num = screen_count;
- screen->current_workspace = NULL;
-
- TAILQ_FOREACH(old_screen, virtual_screens, screens) {
- if (old_screen->num != screen_count)
- continue;
-
- LOG("Found a matching screen\n");
- /* Use the same workspace */
- screen->current_workspace = old_screen->current_workspace;
-
- /* Re-use the old bar window */
- screen->bar = old_screen->bar;
- screen->bargc = old_screen->bargc;
- LOG("old_screen->bar = %p\n", old_screen->bar);
-
- Rect bar_rect = {screen->rect.x,
- screen->rect.y + screen->rect.height - (font->height + 6),
- screen->rect.x + screen->rect.width,
- font->height + 6};
-
- LOG("configuring bar to be at %d x %d with %d x %d\n",
- bar_rect.x, bar_rect.y, bar_rect.height, bar_rect.width);
- xcb_configure_window(conn, screen->bar, XCB_CONFIG_WINDOW_X |
- XCB_CONFIG_WINDOW_Y |
- XCB_CONFIG_WINDOW_WIDTH |
- XCB_CONFIG_WINDOW_HEIGHT, &(bar_rect.x));
-
- /* Copy the list head for the dock clients */
- screen->dock_clients = old_screen->dock_clients;
- SLIST_INIT(&(old_screen->dock_clients));
-
- /* Update the dimensions */
- Workspace *ws;
- TAILQ_FOREACH(ws, workspaces, workspaces) {
- if (ws->screen != old_screen)
- continue;
-
- LOG("re-assigning ws %d\n", ws->num);
- memcpy(&(ws->rect), &(screen->rect), sizeof(Rect));
- ws->screen = screen;
- ws->reassigned = true;
- }
-
- break;
- }
- if (screen->current_workspace == NULL) {
- /* Find the first unused workspace, preferring the ones
- * which are assigned to this screen and initialize
- * the screen with it. */
- LOG("getting first ws for screen %p\n", screen);
- Workspace *ws = get_first_workspace_for_screen(new_screens, screen);
- initialize_screen(conn, screen, ws);
- ws->reassigned = true;
-
- /* As this workspace just got visible (we got a new screen
- * without workspace), we need to map its clients */
- workspace_map_clients(conn, ws);
- }
- screen_count++;
- }
-
- /* check for dock_clients which are out of bounds */
- TAILQ_FOREACH(old_screen, virtual_screens, screens) {
- if (SLIST_EMPTY(&(old_screen->dock_clients)))
- continue;
-
- LOG("dock_clients out of bounds at screen %p, reassigning\n", old_screen);
- if (SLIST_EMPTY(&(first->dock_clients))) {
- first->dock_clients = old_screen->dock_clients;
- continue;
- }
-
- /* We need to merge the lists */
- Client *dock_client;
-
- while (!SLIST_EMPTY(&(old_screen->dock_clients))) {
- dock_client = SLIST_FIRST(&(old_screen->dock_clients));
- SLIST_INSERT_HEAD(&(first->dock_clients), dock_client, dock_clients);
- SLIST_REMOVE_HEAD(&(old_screen->dock_clients), dock_clients);
- }
- }
-
- /* Check for workspaces which are out of bounds */
- TAILQ_FOREACH(ws, workspaces, workspaces) {
- if (ws->reassigned)
- continue;
-
- Client *client;
-
- LOG("Closing bar window (%p)\n", ws->screen->bar);
- xcb_destroy_window(conn, ws->screen->bar);
-
- LOG("Workspace %d's screen out of bounds, assigning to first screen\n", ws->num + 1);
- ws->screen = first;
- memcpy(&(ws->rect), &(first->rect), sizeof(Rect));
-
- /* Force reconfiguration for each client on that workspace */
- FOR_TABLE(ws)
- CIRCLEQ_FOREACH(client, &(ws->table[cols][rows]->clients), clients)
- client->force_reconfigure = true;
-
- /* Render the workspace to reconfigure the clients. However, they will be visible now, so… */
- render_workspace(conn, first, ws);
-
- /* …unless we want to see them at the moment, we should hide that workspace */
- if (workspace_is_visible(ws))
- continue;
-
- workspace_unmap_clients(conn, ws);
-
- if (c_ws == ws) {
- LOG("Need to adjust c_ws...\n");
- c_ws = first->current_workspace;
- }
- }
- xcb_flush(conn);
-
- /* Free the old list */
- while (!TAILQ_EMPTY(virtual_screens)) {
- screen = TAILQ_FIRST(virtual_screens);
- TAILQ_REMOVE(virtual_screens, screen, screens);
- free(screen);
- }
- free(virtual_screens);
-
- virtual_screens = new_screens;
-
- LOG("Current workspace is now: %d\n", first->current_workspace);
-
- render_layout(conn);
+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
}
projects / i3 / i3 / blobdiff