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retab! randr.c

This commit is contained in:
Michael Stapelberg 2011-01-04 22:51:42 +01:00
parent 1fb9b7c431
commit f54ce1ddda
1 changed files with 260 additions and 260 deletions
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520
src/randr.c
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@ -1,5 +1,5 @@
/* /*
* vim:ts=8:expandtab * vim:ts=4:sw=4:expandtab
* *
* i3 - an improved dynamic tiling window manager * i3 - an improved dynamic tiling window manager
* *
@ -36,12 +36,12 @@ static bool randr_disabled = false;
* *
*/ */
static Output *get_output_by_id(xcb_randr_output_t id) { static Output *get_output_by_id(xcb_randr_output_t id) {
Output *output; Output *output;
TAILQ_FOREACH(output, &outputs, outputs) TAILQ_FOREACH(output, &outputs, outputs)
if (output->id == id) if (output->id == id)
return output; return output;
return NULL; return NULL;
} }
/* /*
@ -49,13 +49,13 @@ static Output *get_output_by_id(xcb_randr_output_t id) {
* *
*/ */
Output *get_output_by_name(const char *name) { Output *get_output_by_name(const char *name) {
Output *output; Output *output;
TAILQ_FOREACH(output, &outputs, outputs) TAILQ_FOREACH(output, &outputs, outputs)
if (output->active && if (output->active &&
strcasecmp(output->name, name) == 0) strcasecmp(output->name, name) == 0)
return output; return output;
return NULL; return NULL;
} }
/* /*
@ -63,13 +63,13 @@ Output *get_output_by_name(const char *name) {
* *
*/ */
Output *get_first_output() { Output *get_first_output() {
Output *output; Output *output;
TAILQ_FOREACH(output, &outputs, outputs) TAILQ_FOREACH(output, &outputs, outputs)
if (output->active) if (output->active)
return output; return output;
return NULL; return NULL;
} }
/* /*
@ -78,18 +78,18 @@ Output *get_first_output() {
* *
*/ */
Output *get_output_containing(int x, int y) { Output *get_output_containing(int x, int y) {
Output *output; Output *output;
TAILQ_FOREACH(output, &outputs, outputs) { TAILQ_FOREACH(output, &outputs, outputs) {
if (!output->active) if (!output->active)
continue; continue;
DLOG("comparing x=%d y=%d with x=%d and y=%d width %d height %d\n", DLOG("comparing x=%d y=%d with x=%d and y=%d width %d height %d\n",
x, y, output->rect.x, output->rect.y, output->rect.width, output->rect.height); x, y, output->rect.x, output->rect.y, output->rect.width, output->rect.height);
if (x >= output->rect.x && x < (output->rect.x + output->rect.width) && if (x >= output->rect.x && x < (output->rect.x + output->rect.width) &&
y >= output->rect.y && y < (output->rect.y + output->rect.height)) y >= output->rect.y && y < (output->rect.y + output->rect.height))
return output; return output;
} }
return NULL; return NULL;
} }
/* /*
@ -101,43 +101,43 @@ Output *get_output_containing(int x, int y) {
* *
*/ */
Output *get_output_most(direction_t direction, Output *current) { Output *get_output_most(direction_t direction, Output *current) {
Output *output, *candidate = NULL; Output *output, *candidate = NULL;
int position = 0; int position = 0;
TAILQ_FOREACH(output, &outputs, outputs) { TAILQ_FOREACH(output, &outputs, outputs) {
if (!output->active) if (!output->active)
continue; continue;
/* Repeated calls of WIN determine the winner of the comparison */ /* Repeated calls of WIN determine the winner of the comparison */
#define WIN(variable, condition) \ #define WIN(variable, condition) \
if (variable condition) { \ if (variable condition) { \
candidate = output; \ candidate = output; \
position = variable; \ position = variable; \
} \ } \
break; break;
if (((direction == D_UP) || (direction == D_DOWN)) && if (((direction == D_UP) || (direction == D_DOWN)) &&
(current->rect.x != output->rect.x)) (current->rect.x != output->rect.x))
continue; continue;
if (((direction == D_LEFT) || (direction == D_RIGHT)) && if (((direction == D_LEFT) || (direction == D_RIGHT)) &&
(current->rect.y != output->rect.y)) (current->rect.y != output->rect.y))
continue; continue;
switch (direction) { switch (direction) {
case D_UP: case D_UP:
WIN(output->rect.y, <= position); WIN(output->rect.y, <= position);
case D_DOWN: case D_DOWN:
WIN(output->rect.y, >= position); WIN(output->rect.y, >= position);
case D_LEFT: case D_LEFT:
WIN(output->rect.x, <= position); WIN(output->rect.x, <= position);
case D_RIGHT: case D_RIGHT:
WIN(output->rect.x, >= position); WIN(output->rect.x, >= position);
}
} }
}
assert(candidate != NULL); assert(candidate != NULL);
return candidate; return candidate;
} }
#if 0 #if 0
@ -197,22 +197,22 @@ void initialize_output(xcb_connection_t *conn, Output *output, Workspace *worksp
* *
*/ */
void disable_randr(xcb_connection_t *conn) { void disable_randr(xcb_connection_t *conn) {
xcb_screen_t *root_screen = xcb_setup_roots_iterator(xcb_get_setup(conn)).data; xcb_screen_t *root_screen = xcb_setup_roots_iterator(xcb_get_setup(conn)).data;
DLOG("RandR extension unusable, disabling.\n"); DLOG("RandR extension unusable, disabling.\n");
Output *s = scalloc(sizeof(Output)); Output *s = scalloc(sizeof(Output));
s->active = true; s->active = true;
s->rect.x = 0; s->rect.x = 0;
s->rect.y = 0; s->rect.y = 0;
s->rect.width = root_screen->width_in_pixels; s->rect.width = root_screen->width_in_pixels;
s->rect.height = root_screen->height_in_pixels; s->rect.height = root_screen->height_in_pixels;
s->name = "xroot-0"; s->name = "xroot-0";
TAILQ_INSERT_TAIL(&outputs, s, outputs); TAILQ_INSERT_TAIL(&outputs, s, outputs);
randr_disabled = true; randr_disabled = true;
} }
/* /*
@ -227,15 +227,15 @@ void disable_randr(xcb_connection_t *conn) {
* *
*/ */
static void output_change_mode(xcb_connection_t *conn, Output *output) { static void output_change_mode(xcb_connection_t *conn, Output *output) {
i3Font *font = load_font(conn, config.font); i3Font *font = load_font(conn, config.font);
DLOG("Output mode changed, reconfiguring bar, updating workspaces\n"); DLOG("Output mode changed, reconfiguring bar, updating workspaces\n");
Rect bar_rect = {output->rect.x, Rect bar_rect = {output->rect.x,
output->rect.y + output->rect.height - (font->height + 6), output->rect.y + output->rect.height - (font->height + 6),
output->rect.x + output->rect.width, output->rect.x + output->rect.width,
font->height + 6}; font->height + 6};
xcb_set_window_rect(conn, output->bar, bar_rect); xcb_set_window_rect(conn, output->bar, bar_rect);
#if 0 #if 0
/* go through all workspaces and set force_reconfigure */ /* go through all workspaces and set force_reconfigure */
@ -286,65 +286,65 @@ static void output_change_mode(xcb_connection_t *conn, Output *output) {
static void handle_output(xcb_connection_t *conn, xcb_randr_output_t id, static void handle_output(xcb_connection_t *conn, xcb_randr_output_t id,
xcb_randr_get_output_info_reply_t *output, xcb_randr_get_output_info_reply_t *output,
xcb_timestamp_t cts, resources_reply *res) { xcb_timestamp_t cts, resources_reply *res) {
/* each CRT controller has a position in which we are interested in */ /* each CRT controller has a position in which we are interested in */
crtc_info *crtc; crtc_info *crtc;
Output *new = get_output_by_id(id); Output *new = get_output_by_id(id);
bool existing = (new != NULL); bool existing = (new != NULL);
if (!existing)
new = scalloc(sizeof(Output));
new->id = id;
FREE(new->name);
asprintf(&new->name, "%.*s",
xcb_randr_get_output_info_name_length(output),
xcb_randr_get_output_info_name(output));
DLOG("found output with name %s\n", new->name);
/* Even if no CRTC is used at the moment, we store the output so that
* we do not need to change the list ever again (we only update the
* position/size) */
if (output->crtc == XCB_NONE) {
if (!existing) if (!existing)
new = scalloc(sizeof(Output)); TAILQ_INSERT_TAIL(&outputs, new, outputs);
new->id = id; else if (new->active)
FREE(new->name); new->to_be_disabled = true;
asprintf(&new->name, "%.*s", return;
xcb_randr_get_output_info_name_length(output), }
xcb_randr_get_output_info_name(output));
DLOG("found output with name %s\n", new->name); xcb_randr_get_crtc_info_cookie_t icookie;
icookie = xcb_randr_get_crtc_info(conn, output->crtc, cts);
if ((crtc = xcb_randr_get_crtc_info_reply(conn, icookie, NULL)) == NULL) {
DLOG("Skipping output %s: could not get CRTC (%p)\n",
new->name, crtc);
free(new);
return;
}
/* Even if no CRTC is used at the moment, we store the output so that bool updated = update_if_necessary(&(new->rect.x), crtc->x) |
* we do not need to change the list ever again (we only update the update_if_necessary(&(new->rect.y), crtc->y) |
* position/size) */ update_if_necessary(&(new->rect.width), crtc->width) |
if (output->crtc == XCB_NONE) { update_if_necessary(&(new->rect.height), crtc->height);
if (!existing) free(crtc);
TAILQ_INSERT_TAIL(&outputs, new, outputs); new->active = (new->rect.width != 0 && new->rect.height != 0);
else if (new->active) if (!new->active) {
new->to_be_disabled = true; DLOG("width/height 0/0, disabling output\n");
return; return;
} }
xcb_randr_get_crtc_info_cookie_t icookie; DLOG("mode: %dx%d+%d+%d\n", new->rect.width, new->rect.height,
icookie = xcb_randr_get_crtc_info(conn, output->crtc, cts); new->rect.x, new->rect.y);
if ((crtc = xcb_randr_get_crtc_info_reply(conn, icookie, NULL)) == NULL) {
DLOG("Skipping output %s: could not get CRTC (%p)\n",
new->name, crtc);
free(new);
return;
}
bool updated = update_if_necessary(&(new->rect.x), crtc->x) | /* If we don’t need to change an existing output or if the output
update_if_necessary(&(new->rect.y), crtc->y) | * does not exist in the first place, the case is simple: we either
update_if_necessary(&(new->rect.width), crtc->width) | * need to insert the new output or we are done. */
update_if_necessary(&(new->rect.height), crtc->height); if (!updated || !existing) {
free(crtc); if (!existing)
new->active = (new->rect.width != 0 && new->rect.height != 0); TAILQ_INSERT_TAIL(&outputs, new, outputs);
if (!new->active) { return;
DLOG("width/height 0/0, disabling output\n"); }
return;
}
DLOG("mode: %dx%d+%d+%d\n", new->rect.width, new->rect.height, new->changed = true;
new->rect.x, new->rect.y);
/* If we don’t need to change an existing output or if the output
* does not exist in the first place, the case is simple: we either
* need to insert the new output or we are done. */
if (!updated || !existing) {
if (!existing)
TAILQ_INSERT_TAIL(&outputs, new, outputs);
return;
}
new->changed = true;
} }
/* /*
@ -352,145 +352,145 @@ static void handle_output(xcb_connection_t *conn, xcb_randr_output_t id,
* *
*/ */
void randr_query_outputs() { void randr_query_outputs() {
Output *output, *other, *first; Output *output, *other, *first;
xcb_randr_get_screen_resources_current_cookie_t rcookie; xcb_randr_get_screen_resources_current_cookie_t rcookie;
resources_reply *res; resources_reply *res;
/* timestamp of the configuration so that we get consistent replies to all /* timestamp of the configuration so that we get consistent replies to all
* requests (if the configuration changes between our different calls) */ * requests (if the configuration changes between our different calls) */
xcb_timestamp_t cts; xcb_timestamp_t cts;
/* an output is VGA-1, LVDS-1, etc. (usually physical video outputs) */ /* an output is VGA-1, LVDS-1, etc. (usually physical video outputs) */
xcb_randr_output_t *randr_outputs; xcb_randr_output_t *randr_outputs;
if (randr_disabled) if (randr_disabled)
return; return;
/* Get screen resources (crtcs, outputs, modes) */ /* Get screen resources (crtcs, outputs, modes) */
rcookie = xcb_randr_get_screen_resources_current(conn, root); rcookie = xcb_randr_get_screen_resources_current(conn, root);
if ((res = xcb_randr_get_screen_resources_current_reply(conn, rcookie, NULL)) == NULL) { if ((res = xcb_randr_get_screen_resources_current_reply(conn, rcookie, NULL)) == NULL) {
disable_randr(conn); disable_randr(conn);
return; 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);
/* Request information for each output */
xcb_randr_get_output_info_cookie_t ocookie[len];
for (int i = 0; i < len; i++)
ocookie[i] = xcb_randr_get_output_info(conn, randr_outputs[i], cts);
/* Loop through all outputs available for this X11 screen */
for (int i = 0; i < len; i++) {
xcb_randr_get_output_info_reply_t *output;
if ((output = xcb_randr_get_output_info_reply(conn, ocookie[i], NULL)) == NULL)
continue;
handle_output(conn, randr_outputs[i], output, cts, res);
free(output);
}
free(res);
/* Check for clones, disable the clones and reduce the mode to the
* lowest common mode */
TAILQ_FOREACH(output, &outputs, outputs) {
if (!output->active || output->to_be_disabled)
continue;
DLOG("output %p, position (%d, %d), checking for clones\n",
output, output->rect.x, output->rect.y);
for (other = output;
other != TAILQ_END(&outputs);
other = TAILQ_NEXT(other, outputs)) {
if (other == output || !other->active || other->to_be_disabled)
continue;
if (other->rect.x != output->rect.x ||
other->rect.y != output->rect.y)
continue;
DLOG("output %p has the same position, his mode = %d x %d\n",
other, other->rect.width, other->rect.height);
uint32_t width = min(other->rect.width, output->rect.width);
uint32_t height = min(other->rect.height, output->rect.height);
if (update_if_necessary(&(output->rect.width), width) |
update_if_necessary(&(output->rect.height), height))
output->changed = true;
update_if_necessary(&(other->rect.width), width);
update_if_necessary(&(other->rect.height), height);
DLOG("disabling output %p (%s)\n", other, other->name);
other->to_be_disabled = true;
DLOG("new output mode %d x %d, other mode %d x %d\n",
output->rect.width, output->rect.height,
other->rect.width, other->rect.height);
} }
cts = res->config_timestamp; }
int len = xcb_randr_get_screen_resources_current_outputs_length(res); /* Handle outputs which have a new mode or are disabled now (either
randr_outputs = xcb_randr_get_screen_resources_current_outputs(res); * 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);
/* Request information for each output */ if ((first = get_first_output()) == NULL)
xcb_randr_get_output_info_cookie_t ocookie[len]; die("No usable outputs available\n");
for (int i = 0; i < len; i++)
ocookie[i] = xcb_randr_get_output_info(conn, randr_outputs[i], cts);
/* Loop through all outputs available for this X11 screen */ //bool needs_init = (first->current_workspace == NULL);
for (int i = 0; i < len; i++) {
xcb_randr_get_output_info_reply_t *output;
if ((output = xcb_randr_get_output_info_reply(conn, ocookie[i], NULL)) == NULL)
continue;
handle_output(conn, randr_outputs[i], output, cts, res);
free(output);
}
free(res);
/* Check for clones, disable the clones and reduce the mode to the
* lowest common mode */
TAILQ_FOREACH(output, &outputs, outputs) {
if (!output->active || output->to_be_disabled)
continue;
DLOG("output %p, position (%d, %d), checking for clones\n",
output, output->rect.x, output->rect.y);
for (other = output;
other != TAILQ_END(&outputs);
other = TAILQ_NEXT(other, outputs)) {
if (other == output || !other->active || other->to_be_disabled)
continue;
if (other->rect.x != output->rect.x ||
other->rect.y != output->rect.y)
continue;
DLOG("output %p has the same position, his mode = %d x %d\n",
other, other->rect.width, other->rect.height);
uint32_t width = min(other->rect.width, output->rect.width);
uint32_t height = min(other->rect.height, output->rect.height);
if (update_if_necessary(&(output->rect.width), width) |
update_if_necessary(&(output->rect.height), height))
output->changed = true;
update_if_necessary(&(other->rect.width), width);
update_if_necessary(&(other->rect.height), height);
DLOG("disabling output %p (%s)\n", other, other->name);
other->to_be_disabled = true;
DLOG("new output mode %d x %d, other mode %d x %d\n",
output->rect.width, output->rect.height,
other->rect.width, other->rect.height);
}
}
/* Handle outputs which have a new mode or are disabled now (either
* 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);
if ((first = get_first_output()) == NULL)
die("No usable outputs available\n");
//bool needs_init = (first->current_workspace == NULL);
#if 0 #if 0
TAILQ_FOREACH(ws, workspaces, workspaces) { TAILQ_FOREACH(ws, workspaces, workspaces) {
if (ws->output != output) if (ws->output != output)
continue; continue;
workspace_assign_to(ws, first, true); workspace_assign_to(ws, first, true);
if (!needs_init) if (!needs_init)
continue; continue;
//initialize_output(conn, first, ws); //initialize_output(conn, first, ws);
needs_init = false; needs_init = false;
} }
Client *dock; Client *dock;
while (!SLIST_EMPTY(&(output->dock_clients))) { while (!SLIST_EMPTY(&(output->dock_clients))) {
dock = SLIST_FIRST(&(output->dock_clients)); dock = SLIST_FIRST(&(output->dock_clients));
SLIST_REMOVE_HEAD(&(output->dock_clients), dock_clients); SLIST_REMOVE_HEAD(&(output->dock_clients), dock_clients);
SLIST_INSERT_HEAD(&(first->dock_clients), dock, dock_clients); SLIST_INSERT_HEAD(&(first->dock_clients), dock, dock_clients);
} }
#endif #endif
//output->current_workspace = NULL; //output->current_workspace = NULL;
output->to_be_disabled = false; output->to_be_disabled = false;
} else if (output->changed) { } else if (output->changed) {
output_change_mode(conn, output); output_change_mode(conn, output);
output->changed = false; output->changed = false;
}
} }
}
if (TAILQ_EMPTY(&outputs)) { if (TAILQ_EMPTY(&outputs)) {
ELOG("No outputs found via RandR, disabling\n"); ELOG("No outputs found via RandR, disabling\n");
disable_randr(conn); disable_randr(conn);
} }
//ewmh_update_workarea(); //ewmh_update_workarea();
#if 0 #if 0
/* Just go through each active output and associate one workspace */ /* Just go through each active output and associate one workspace */
TAILQ_FOREACH(output, &outputs, outputs) { TAILQ_FOREACH(output, &outputs, outputs) {
if (!output->active || output->current_workspace != NULL) if (!output->active || output->current_workspace != NULL)
continue; continue;
ws = get_first_workspace_for_output(output); ws = get_first_workspace_for_output(output);
initialize_output(conn, output, ws); initialize_output(conn, output, ws);
} }
#endif #endif
/* render_layout flushes */ /* render_layout flushes */
tree_render(); tree_render();
} }
/* /*
@ -499,21 +499,21 @@ void randr_query_outputs() {
* *
*/ */
void randr_init(int *event_base) { void randr_init(int *event_base) {
const xcb_query_extension_reply_t *extreply; const xcb_query_extension_reply_t *extreply;
extreply = xcb_get_extension_data(conn, &xcb_randr_id); extreply = xcb_get_extension_data(conn, &xcb_randr_id);
if (!extreply->present) if (!extreply->present)
disable_randr(conn); disable_randr(conn);
else randr_query_outputs(conn); else randr_query_outputs(conn);
if (event_base != NULL) if (event_base != NULL)
*event_base = extreply->first_event; *event_base = extreply->first_event;
xcb_randr_select_input(conn, root, xcb_randr_select_input(conn, root,
XCB_RANDR_NOTIFY_MASK_SCREEN_CHANGE | XCB_RANDR_NOTIFY_MASK_SCREEN_CHANGE |
XCB_RANDR_NOTIFY_MASK_OUTPUT_CHANGE | XCB_RANDR_NOTIFY_MASK_OUTPUT_CHANGE |
XCB_RANDR_NOTIFY_MASK_CRTC_CHANGE | XCB_RANDR_NOTIFY_MASK_CRTC_CHANGE |
XCB_RANDR_NOTIFY_MASK_OUTPUT_PROPERTY); XCB_RANDR_NOTIFY_MASK_OUTPUT_PROPERTY);
xcb_flush(conn); xcb_flush(conn);
} }