X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=src%2Frandr.c;h=48bffb4622d1c86bbc1bb129e57a28036fc74e92;hb=eaf7a49e28b7ff8e1820a1b23350647574a0ed5a;hp=a4a0f6fd6d36fe7c626d836e7bc23d8c34573cdb;hpb=3c5df50c54ab6451098c2175a21470312952000e;p=i3%2Fi3 diff --git a/src/randr.c b/src/randr.c index a4a0f6fd..48bffb46 100644 --- a/src/randr.c +++ b/src/randr.c @@ -1,10 +1,8 @@ -#undef I3__FILE__ -#define I3__FILE__ "randr.c" /* * vim:ts=4:sw=4:expandtab * * i3 - an improved dynamic tiling window manager - * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE) + * © 2009 Michael Stapelberg and contributors (see also: LICENSE) * * For more information on RandR, please see the X.org RandR specification at * http://cgit.freedesktop.org/xorg/proto/randrproto/tree/randrproto.txt @@ -16,18 +14,15 @@ #include #include -/* While a clean namespace is usually a pretty good thing, we really need - * to use shorter names than the whole xcb_randr_* default names. */ -typedef xcb_randr_get_crtc_info_reply_t crtc_info; -typedef xcb_randr_get_screen_resources_current_reply_t resources_reply; - /* Pointer to the result of the query for primary output */ xcb_randr_get_output_primary_reply_t *primary; /* Stores all outputs available in your current session. */ struct outputs_head outputs = TAILQ_HEAD_INITIALIZER(outputs); -static bool randr_disabled = false; +/* This is the output covering the root window */ +static Output *root_output; +static bool has_randr_1_5 = false; /* * Get a specific output by its internal X11 id. Used by randr_query_outputs @@ -45,15 +40,19 @@ static Output *get_output_by_id(xcb_randr_output_t id) { } /* - * Returns the output with the given name if it is active (!) or NULL. + * Returns the output with the given name or NULL. + * If require_active is true, only active outputs are considered. * */ -Output *get_output_by_name(const char *name) { +Output *get_output_by_name(const char *name, const bool require_active) { Output *output; - TAILQ_FOREACH(output, &outputs, outputs) - if (output->active && - strcasecmp(output->name, name) == 0) - return output; + bool get_primary = (strcasecmp("primary", name) == 0); + TAILQ_FOREACH(output, &outputs, outputs) { + if ((output->primary && get_primary) || + ((!require_active || output->active) && strcasecmp(output->name, name) == 0)) { + return output; + } + } return NULL; } @@ -72,6 +71,21 @@ Output *get_first_output(void) { die("No usable outputs available.\n"); } +/* + * Check whether there are any active outputs (excluding the root output). + * + */ +static bool any_randr_output_active(void) { + Output *output; + + TAILQ_FOREACH(output, &outputs, outputs) { + if (output != root_output && !output->to_be_disabled && output->active) + return true; + } + + return false; +} + /* * Returns the active (!) output which contains the coordinates x, y or NULL * if there is no output which contains these coordinates. @@ -92,6 +106,27 @@ Output *get_output_containing(unsigned int x, unsigned int y) { return NULL; } +/* + * Returns the active output which spans exactly the area specified by + * rect or NULL if there is no output like this. + * + */ +Output *get_output_with_dimensions(Rect rect) { + Output *output; + TAILQ_FOREACH(output, &outputs, outputs) { + if (!output->active) + continue; + DLOG("comparing x=%d y=%d %dx%d with x=%d and y=%d %dx%d\n", + rect.x, rect.y, rect.width, rect.height, + output->rect.x, output->rect.y, output->rect.width, output->rect.height); + if (rect.x == output->rect.x && rect.width == output->rect.width && + rect.y == output->rect.y && rect.height == output->rect.height) + return output; + } + + return NULL; +} + /* * In contained_by_output, we check if any active output contains part of the container. * We do this by checking if the output rect is intersected by the Rect. @@ -220,27 +255,20 @@ Output *get_output_next(direction_t direction, Output *current, output_close_far } /* - * Disables RandR support by creating exactly one output with the size of the - * X11 screen. + * Creates an output covering the root window. * */ -void disable_randr(xcb_connection_t *conn) { - DLOG("RandR extension unusable, disabling.\n"); +Output *create_root_output(xcb_connection_t *conn) { + Output *s = scalloc(1, sizeof(Output)); - Output *s = scalloc(sizeof(Output)); - - s->active = true; + s->active = false; s->rect.x = 0; s->rect.y = 0; s->rect.width = root_screen->width_in_pixels; s->rect.height = root_screen->height_in_pixels; s->name = "xroot-0"; - output_init_con(s); - init_ws_for_output(s, output_get_content(s->con)); - - TAILQ_INSERT_TAIL(&outputs, s, outputs); - randr_disabled = true; + return s; } /* @@ -292,7 +320,7 @@ void output_init_con(Output *output) { topdock->type = CT_DOCKAREA; topdock->layout = L_DOCKAREA; /* this container swallows dock clients */ - Match *match = scalloc(sizeof(Match)); + Match *match = scalloc(1, sizeof(Match)); match_init(match); match->dock = M_DOCK_TOP; match->insert_where = M_BELOW; @@ -326,7 +354,7 @@ void output_init_con(Output *output) { bottomdock->type = CT_DOCKAREA; bottomdock->layout = L_DOCKAREA; /* this container swallows dock clients */ - match = scalloc(sizeof(Match)); + match = scalloc(1, sizeof(Match)); match_init(match); match->dock = M_DOCK_BOTTOM; match->insert_where = M_BELOW; @@ -411,11 +439,11 @@ void init_ws_for_output(Output *output, Con *content) { /* In case the workspace we just moved was visible but there was no * other workspace to switch to, we need to initialize the source - * output aswell */ + * output as well */ if (visible && previous == NULL) { LOG("There is no workspace left on \"%s\", re-initializing\n", workspace_out->name); - init_ws_for_output(get_output_by_name(workspace_out->name), + init_ws_for_output(get_output_by_name(workspace_out->name, true), output_get_content(workspace_out)); DLOG("Done re-initializing, continuing with \"%s\"\n", output->name); } @@ -506,23 +534,117 @@ static void output_change_mode(xcb_connection_t *conn, Output *output) { } /* - * Gets called by randr_query_outputs() for each output. The function adds new - * outputs to the list of outputs, checks if the mode of existing outputs has - * been changed or if an existing output has been disabled. It will then change - * either the "changed" or the "to_be_deleted" flag of the output, if + * randr_query_outputs_15 uses RandR ≥ 1.5 to update outputs. + * + */ +static bool randr_query_outputs_15(void) { +#if XCB_RANDR_MINOR_VERSION < 5 + return false; +#else + /* RandR 1.5 available at compile-time, i.e. libxcb is new enough */ + if (!has_randr_1_5) { + return false; + } + /* RandR 1.5 available at run-time (supported by the server and not + * disabled by the user) */ + DLOG("Querying outputs using RandR 1.5\n"); + xcb_generic_error_t *err; + xcb_randr_get_monitors_reply_t *monitors = + xcb_randr_get_monitors_reply( + conn, xcb_randr_get_monitors(conn, root, true), &err); + if (err != NULL) { + ELOG("Could not get RandR monitors: X11 error code %d\n", err->error_code); + free(err); + /* Fall back to RandR ≤ 1.4 */ + return false; + } + + /* Mark all outputs as to_be_disabled, since xcb_randr_get_monitors() will + * only return active outputs. */ + Output *output; + TAILQ_FOREACH(output, &outputs, outputs) { + if (output != root_output) { + output->to_be_disabled = true; + } + } + + DLOG("%d RandR monitors found (timestamp %d)\n", + xcb_randr_get_monitors_monitors_length(monitors), + monitors->timestamp); + + xcb_randr_monitor_info_iterator_t iter; + for (iter = xcb_randr_get_monitors_monitors_iterator(monitors); + iter.rem; + xcb_randr_monitor_info_next(&iter)) { + const xcb_randr_monitor_info_t *monitor_info = iter.data; + xcb_get_atom_name_reply_t *atom_reply = + xcb_get_atom_name_reply( + conn, xcb_get_atom_name(conn, monitor_info->name), &err); + if (err != NULL) { + ELOG("Could not get RandR monitor name: X11 error code %d\n", err->error_code); + free(err); + continue; + } + char *name; + sasprintf(&name, "%.*s", + xcb_get_atom_name_name_length(atom_reply), + xcb_get_atom_name_name(atom_reply)); + free(atom_reply); + + Output *new = get_output_by_name(name, false); + if (new == NULL) { + new = scalloc(1, sizeof(Output)); + new->name = sstrdup(name); + if (monitor_info->primary) { + TAILQ_INSERT_HEAD(&outputs, new, outputs); + } else { + TAILQ_INSERT_TAIL(&outputs, new, outputs); + } + } + /* We specified get_active == true in xcb_randr_get_monitors(), so we + * will only receive active outputs. */ + new->active = true; + new->to_be_disabled = false; + + new->primary = monitor_info->primary; + + new->changed = + update_if_necessary(&(new->rect.x), monitor_info->x) | + update_if_necessary(&(new->rect.y), monitor_info->y) | + update_if_necessary(&(new->rect.width), monitor_info->width) | + update_if_necessary(&(new->rect.height), monitor_info->height); + + DLOG("name %s, x %d, y %d, width %d px, height %d px, width %d mm, height %d mm, primary %d, automatic %d\n", + name, + monitor_info->x, monitor_info->y, monitor_info->width, monitor_info->height, + monitor_info->width_in_millimeters, monitor_info->height_in_millimeters, + monitor_info->primary, monitor_info->automatic); + free(name); + } + free(monitors); + return true; +#endif +} + +/* + * Gets called by randr_query_outputs_14() for each output. The function adds + * new outputs to the list of outputs, checks if the mode of existing outputs + * has been changed or if an existing output has been disabled. It will then + * change either the "changed" or the "to_be_deleted" flag of the output, if * appropriate. * */ static void handle_output(xcb_connection_t *conn, xcb_randr_output_t id, xcb_randr_get_output_info_reply_t *output, - xcb_timestamp_t cts, resources_reply *res) { + xcb_timestamp_t cts, + xcb_randr_get_screen_resources_current_reply_t *res) { /* each CRT controller has a position in which we are interested in */ - crtc_info *crtc; + xcb_randr_get_crtc_info_reply_t *crtc; Output *new = get_output_by_id(id); bool existing = (new != NULL); if (!existing) - new = scalloc(sizeof(Output)); + new = scalloc(1, sizeof(Output)); new->id = id; new->primary = (primary && primary->output == id); FREE(new->name); @@ -586,41 +708,38 @@ static void handle_output(xcb_connection_t *conn, xcb_randr_output_t id, } /* - * (Re-)queries the outputs via RandR and stores them in the list of outputs. + * randr_query_outputs_14 uses RandR ≤ 1.4 to update outputs. * */ -void randr_query_outputs(void) { - Output *output, *other, *first; - xcb_randr_get_output_primary_cookie_t pcookie; - xcb_randr_get_screen_resources_current_cookie_t rcookie; - resources_reply *res; - - /* timestamp of the configuration so that we get consistent replies to all - * requests (if the configuration changes between our different calls) */ - xcb_timestamp_t cts; - - /* an output is VGA-1, LVDS-1, etc. (usually physical video outputs) */ - xcb_randr_output_t *randr_outputs; - - if (randr_disabled) - return; +static void randr_query_outputs_14(void) { + DLOG("Querying outputs using RandR ≤ 1.4\n"); /* Get screen resources (primary output, crtcs, outputs, modes) */ + xcb_randr_get_screen_resources_current_cookie_t rcookie; rcookie = xcb_randr_get_screen_resources_current(conn, root); + xcb_randr_get_output_primary_cookie_t pcookie; pcookie = xcb_randr_get_output_primary(conn, root); if ((primary = xcb_randr_get_output_primary_reply(conn, pcookie, NULL)) == NULL) ELOG("Could not get RandR primary output\n"); else DLOG("primary output is %08x\n", primary->output); - if ((res = xcb_randr_get_screen_resources_current_reply(conn, rcookie, NULL)) == NULL) { - disable_randr(conn); + + xcb_randr_get_screen_resources_current_reply_t *res = + xcb_randr_get_screen_resources_current_reply(conn, rcookie, NULL); + if (res == NULL) { + ELOG("Could not query screen resources.\n"); return; } - cts = res->config_timestamp; - int len = xcb_randr_get_screen_resources_current_outputs_length(res); - randr_outputs = xcb_randr_get_screen_resources_current_outputs(res); + /* timestamp of the configuration so that we get consistent replies to all + * requests (if the configuration changes between our different calls) */ + const xcb_timestamp_t cts = res->config_timestamp; + + const int len = xcb_randr_get_screen_resources_current_outputs_length(res); + + /* an output is VGA-1, LVDS-1, etc. (usually physical video outputs) */ + xcb_randr_output_t *randr_outputs = xcb_randr_get_screen_resources_current_outputs(res); /* Request information for each output */ xcb_randr_get_output_info_cookie_t ocookie[len]; @@ -638,6 +757,32 @@ void randr_query_outputs(void) { free(output); } + FREE(res); +} + +/* + * (Re-)queries the outputs via RandR and stores them in the list of outputs. + * + * If no outputs are found use the root window. + * + */ +void randr_query_outputs(void) { + Output *output, *other; + + if (!randr_query_outputs_15()) { + randr_query_outputs_14(); + } + + /* If there's no randr output, enable the output covering the root window. */ + if (any_randr_output_active()) { + DLOG("Active RandR output found. Disabling root output.\n"); + if (root_output->active) + root_output->to_be_disabled = true; + } else { + DLOG("No active RandR output found. Enabling root output.\n"); + root_output->active = true; + } + /* Check for clones, disable the clones and reduce the mode to the * lowest common mode */ TAILQ_FOREACH(output, &outputs, outputs) { @@ -693,84 +838,7 @@ void randr_query_outputs(void) { * because the user disabled them or because they are clones) */ TAILQ_FOREACH(output, &outputs, outputs) { if (output->to_be_disabled) { - output->active = false; - DLOG("Output %s disabled, re-assigning workspaces/docks\n", output->name); - - first = get_first_output(); - - /* TODO: refactor the following code into a nice function. maybe - * use an on_destroy callback which is implement differently for - * different container types (CT_CONTENT vs. CT_DOCKAREA)? */ - Con *first_content = output_get_content(first->con); - - if (output->con != NULL) { - /* We need to move the workspaces from the disappearing output to the first output */ - /* 1: Get the con to focus next, if the disappearing ws is focused */ - Con *next = NULL; - if (TAILQ_FIRST(&(croot->focus_head)) == output->con) { - DLOG("This output (%p) was focused! Getting next\n", output->con); - next = focused; - DLOG("next = %p\n", next); - } - - /* 2: iterate through workspaces and re-assign them, fixing the coordinates - * of floating containers as we go */ - Con *current; - Con *old_content = output_get_content(output->con); - while (!TAILQ_EMPTY(&(old_content->nodes_head))) { - current = TAILQ_FIRST(&(old_content->nodes_head)); - if (current != next && TAILQ_EMPTY(&(current->focus_head))) { - /* the workspace is empty and not focused, get rid of it */ - DLOG("Getting rid of current = %p / %s (empty, unfocused)\n", current, current->name); - tree_close(current, DONT_KILL_WINDOW, false, false); - continue; - } - DLOG("Detaching current = %p / %s\n", current, current->name); - con_detach(current); - DLOG("Re-attaching current = %p / %s\n", current, current->name); - con_attach(current, first_content, false); - DLOG("Fixing the coordinates of floating containers\n"); - Con *floating_con; - TAILQ_FOREACH(floating_con, &(current->floating_head), floating_windows) - floating_fix_coordinates(floating_con, &(output->con->rect), &(first->con->rect)); - DLOG("Done, next\n"); - } - DLOG("re-attached all workspaces\n"); - - if (next) { - DLOG("now focusing next = %p\n", next); - con_focus(next); - workspace_show(con_get_workspace(next)); - } - - /* 3: move the dock clients to the first output */ - Con *child; - TAILQ_FOREACH(child, &(output->con->nodes_head), nodes) { - if (child->type != CT_DOCKAREA) - continue; - DLOG("Handling dock con %p\n", child); - Con *dock; - while (!TAILQ_EMPTY(&(child->nodes_head))) { - dock = TAILQ_FIRST(&(child->nodes_head)); - Con *nc; - Match *match; - nc = con_for_window(first->con, dock->window, &match); - DLOG("Moving dock client %p to nc %p\n", dock, nc); - con_detach(dock); - DLOG("Re-attaching\n"); - con_attach(dock, nc, false); - DLOG("Done\n"); - } - } - - DLOG("destroying disappearing con %p\n", output->con); - tree_close(output->con, DONT_KILL_WINDOW, true, false); - DLOG("Done. Should be fine now\n"); - output->con = NULL; - } - - output->to_be_disabled = false; - output->changed = false; + randr_disable_output(output); } if (output->changed) { @@ -779,14 +847,6 @@ void randr_query_outputs(void) { } } - if (TAILQ_EMPTY(&outputs)) { - ELOG("No outputs found via RandR, disabling\n"); - disable_randr(conn); - } - - /* Verifies that there is at least one active output as a side-effect. */ - get_first_output(); - /* Just go through each active output and assign one workspace */ TAILQ_FOREACH(output, &outputs, outputs) { if (!output->active) @@ -810,24 +870,141 @@ void randr_query_outputs(void) { /* render_layout flushes */ tree_render(); - FREE(res); FREE(primary); } +/* + * Disables the output and moves its content. + * + */ +void randr_disable_output(Output *output) { + assert(output->to_be_disabled); + + output->active = false; + DLOG("Output %s disabled, re-assigning workspaces/docks\n", output->name); + + Output *first = get_first_output(); + + /* TODO: refactor the following code into a nice function. maybe + * use an on_destroy callback which is implement differently for + * different container types (CT_CONTENT vs. CT_DOCKAREA)? */ + Con *first_content = output_get_content(first->con); + + if (output->con != NULL) { + /* We need to move the workspaces from the disappearing output to the first output */ + /* 1: Get the con to focus next, if the disappearing ws is focused */ + Con *next = NULL; + if (TAILQ_FIRST(&(croot->focus_head)) == output->con) { + DLOG("This output (%p) was focused! Getting next\n", output->con); + next = focused; + DLOG("next = %p\n", next); + } + + /* 2: iterate through workspaces and re-assign them, fixing the coordinates + * of floating containers as we go */ + Con *current; + Con *old_content = output_get_content(output->con); + while (!TAILQ_EMPTY(&(old_content->nodes_head))) { + current = TAILQ_FIRST(&(old_content->nodes_head)); + if (current != next && TAILQ_EMPTY(&(current->focus_head))) { + /* the workspace is empty and not focused, get rid of it */ + DLOG("Getting rid of current = %p / %s (empty, unfocused)\n", current, current->name); + tree_close_internal(current, DONT_KILL_WINDOW, false, false); + continue; + } + DLOG("Detaching current = %p / %s\n", current, current->name); + con_detach(current); + DLOG("Re-attaching current = %p / %s\n", current, current->name); + con_attach(current, first_content, false); + DLOG("Fixing the coordinates of floating containers\n"); + Con *floating_con; + TAILQ_FOREACH(floating_con, &(current->floating_head), floating_windows) { + floating_fix_coordinates(floating_con, &(output->con->rect), &(first->con->rect)); + } + DLOG("Done, next\n"); + } + DLOG("re-attached all workspaces\n"); + + if (next) { + DLOG("now focusing next = %p\n", next); + con_focus(next); + workspace_show(con_get_workspace(next)); + } + + /* 3: move the dock clients to the first output */ + Con *child; + TAILQ_FOREACH(child, &(output->con->nodes_head), nodes) { + if (child->type != CT_DOCKAREA) + continue; + DLOG("Handling dock con %p\n", child); + Con *dock; + while (!TAILQ_EMPTY(&(child->nodes_head))) { + dock = TAILQ_FIRST(&(child->nodes_head)); + Con *nc; + Match *match; + nc = con_for_window(first->con, dock->window, &match); + DLOG("Moving dock client %p to nc %p\n", dock, nc); + con_detach(dock); + DLOG("Re-attaching\n"); + con_attach(dock, nc, false); + DLOG("Done\n"); + } + } + + DLOG("destroying disappearing con %p\n", output->con); + Con *con = output->con; + /* clear the pointer before calling tree_close_internal in which the memory is freed */ + output->con = NULL; + tree_close_internal(con, DONT_KILL_WINDOW, true, false); + DLOG("Done. Should be fine now\n"); + } + + output->to_be_disabled = false; + output->changed = false; +} + +static void fallback_to_root_output(void) { + root_output->active = true; + output_init_con(root_output); + init_ws_for_output(root_output, output_get_content(root_output->con)); +} + /* * We have just established a connection to the X server and need the initial * XRandR information to setup workspaces for each screen. * */ -void randr_init(int *event_base) { +void randr_init(int *event_base, const bool disable_randr15) { const xcb_query_extension_reply_t *extreply; + root_output = create_root_output(conn); + TAILQ_INSERT_TAIL(&outputs, root_output, outputs); + extreply = xcb_get_extension_data(conn, &xcb_randr_id); if (!extreply->present) { - disable_randr(conn); + DLOG("RandR is not present, activating root output.\n"); + fallback_to_root_output(); return; - } else - randr_query_outputs(); + } + + xcb_generic_error_t *err; + xcb_randr_query_version_reply_t *randr_version = + xcb_randr_query_version_reply( + conn, xcb_randr_query_version(conn, XCB_RANDR_MAJOR_VERSION, XCB_RANDR_MINOR_VERSION), &err); + if (err != NULL) { + free(err); + ELOG("Could not query RandR version: X11 error code %d\n", err->error_code); + fallback_to_root_output(); + return; + } + + has_randr_1_5 = (randr_version->major_version >= 1) && + (randr_version->minor_version >= 5) && + !disable_randr15; + + free(randr_version); + + randr_query_outputs(); if (event_base != NULL) *event_base = extreply->first_event;