std::vector<std::shared_ptr<monitor_t>> get_list(xcb_connection_t *connection, xcb_window_t root)
{
std::vector<std::shared_ptr<monitor_t>> monitors;
xcb_randr_get_screen_resources_reply_t *sres =
xcb_randr_get_screen_resources_reply(connection,
xcb_randr_get_screen_resources(connection, root), nullptr);
if (sres == nullptr)
return monitors;
int len = xcb_randr_get_screen_resources_outputs_length(sres);
xcb_randr_output_t *outputs = xcb_randr_get_screen_resources_outputs(sres);
for (int i = 0; i < len; i++) {
xcb_randr_get_output_info_cookie_t cookie =
xcb_randr_get_output_info(connection, outputs[i], XCB_CURRENT_TIME);
xcb_randr_get_output_info_reply_t *info =
xcb_randr_get_output_info_reply(connection, cookie, nullptr);
xcb_randr_get_output_info(connection, outputs[i], XCB_CURRENT_TIME);
if (info == nullptr)
continue;
if (info->crtc == XCB_NONE) {
free(info);
continue;
}
xcb_randr_get_crtc_info_reply_t *cir =
xcb_randr_get_crtc_info_reply(connection,
xcb_randr_get_crtc_info(connection, info->crtc, XCB_CURRENT_TIME), nullptr);
if (cir == nullptr) {
free(info);
continue;
}
char *monitor_name = (char *) xcb_randr_get_output_info_name(info);
monitors.emplace_back(make_object(monitor_name, info->name_len, i,
{cir->x, cir->y, cir->width, cir->height}));
free(cir);
}
std::sort(monitors.begin(), monitors.end(), [](std::shared_ptr<monitor_t> m1, std::shared_ptr<monitor_t> m2) -> bool
{
if (m1->bounds.x < m2->bounds.x || m1->bounds.y + m1->bounds.height <= m2->bounds.y)
return 1;
if (m1->bounds.x > m2->bounds.x || m1->bounds.y + m1->bounds.height > m2->bounds.y)
return -1;
return 0;
});
return monitors;
}
xcb_randr_get_output_info_reply_t *
get_output_info(xcb_connection_t * conn, xcb_randr_output_t output)
{
xcb_randr_get_output_info_cookie_t oic;
oic = xcb_randr_get_output_info(conn, output, 0);
xcb_randr_get_output_info_reply_t *output_info_reply;
output_info_reply = xcb_randr_get_output_info_reply(conn, oic, NULL);
if (!output_info_reply)
errx(1, "Could not get output info.");
return output_info_reply;
}
/*
* Initialize RandR and obtain current monitors
*/
static int ya_init_randr() {
xcb_randr_get_screen_resources_current_reply_t *res_reply;
res_reply = xcb_randr_get_screen_resources_current_reply(ya.c,
xcb_randr_get_screen_resources_current(ya.c, ya.scr->root), NULL);
if (!res_reply) {
return -1; //just report error
}
int mon_num = xcb_randr_get_screen_resources_current_outputs_length(res_reply);
xcb_randr_output_t *ops = xcb_randr_get_screen_resources_current_outputs(res_reply);
xcb_randr_get_output_info_reply_t *op_reply;
xcb_randr_get_crtc_info_reply_t *crtc_reply;
ya_monitor_t *tmpmon;
char *tname;
int tname_len;
for (int i=0; i < mon_num; i++) {
op_reply = xcb_randr_get_output_info_reply(ya.c,
xcb_randr_get_output_info(ya.c, ops[i], XCB_CURRENT_TIME), NULL);
if (op_reply->crtc == XCB_NONE)
continue;
crtc_reply = xcb_randr_get_crtc_info_reply(ya.c,
xcb_randr_get_crtc_info(ya.c, op_reply->crtc, XCB_CURRENT_TIME), NULL);
if(!crtc_reply)
continue;
tmpmon = calloc(1, sizeof(ya_monitor_t));
tmpmon->pos = (xcb_rectangle_t){crtc_reply->x,
crtc_reply->y, crtc_reply->width, crtc_reply->height};
tname = (char *)xcb_randr_get_output_info_name(op_reply);
tname_len = xcb_randr_get_output_info_name_length(op_reply);
strncpy(tmpmon->name, tname, tname_len);
tmpmon->name[CMONLEN-1] = '\0';
if (ya.curmon) {
ya.curmon->next_mon = tmpmon;
tmpmon->prev_mon = ya.curmon;
}
ya.curmon = tmpmon;
//printf("%s %d %d %d %d %d\n", tmpmon->name, tname_len, tmpmon->pos.x,
// tmpmon->pos.y, tmpmon->pos.width, tmpmon->pos.height);
}
return 0;
}
static gboolean
_eventd_nd_xcb_randr_check_primary(EventdNdBackendContext *self)
{
xcb_randr_get_output_primary_cookie_t pcookie;
xcb_randr_get_output_primary_reply_t *primary;
pcookie = xcb_randr_get_output_primary(self->xcb_connection, self->screen->root);
if ( ( primary = xcb_randr_get_output_primary_reply(self->xcb_connection, pcookie, NULL) ) == NULL )
return FALSE;
gboolean found = FALSE;
xcb_randr_get_output_info_cookie_t ocookie;
xcb_randr_get_output_info_reply_t *output;
ocookie = xcb_randr_get_output_info(self->xcb_connection, primary->output, 0);
if ( ( output = xcb_randr_get_output_info_reply(self->xcb_connection, ocookie, NULL) ) != NULL )
{
xcb_randr_get_crtc_info_cookie_t ccookie;
xcb_randr_get_crtc_info_reply_t *crtc;
ccookie = xcb_randr_get_crtc_info(self->xcb_connection, output->crtc, output->timestamp);
if ( ( crtc = xcb_randr_get_crtc_info_reply(self->xcb_connection, ccookie, NULL) ) != NULL )
{
found = TRUE;
self->geometry.x = crtc->x;
self->geometry.y = crtc->y;
self->geometry.w = crtc->width;
self->geometry.h = crtc->height;
free(crtc);
}
free(output);
}
free(primary);
return found;
}
/*
* Get RANDR resources and figure out how many outputs there are.
*/
void randr_get(xcb_connection_t * conn,xcb_screen_t * screen)
{
xcb_randr_get_screen_resources_current_cookie_t rcookie;
xcb_randr_get_screen_resources_current_reply_t *res;
xcb_randr_output_t *outputs;
int len;
xcb_timestamp_t timestamp;
rcookie = xcb_randr_get_screen_resources_current(conn, screen->root);
res = xcb_randr_get_screen_resources_current_reply(conn, rcookie, NULL);
if (NULL == res)
{
printf("No RANDR extension available.\n");
return;
}
timestamp = res->config_timestamp;
len = xcb_randr_get_screen_resources_current_outputs_length(res);
outputs = xcb_randr_get_screen_resources_current_outputs(res);
free(res);
PDEBUG("Found %d outputs.\n", len);
/* Request information for all outputs. */
char *name;
xcb_randr_get_crtc_info_cookie_t icookie;
xcb_randr_get_crtc_info_reply_t *crtc = NULL;
xcb_randr_get_output_info_reply_t *output;
struct monitor *mon;
struct monitor *clonemon;
xcb_randr_get_output_info_cookie_t ocookie[len];
int i;
for (i = 0; i < len; i++)
{
ocookie[i] = xcb_randr_get_output_info(conn, outputs[i], timestamp);
}
/* Loop through all outputs. */
for (i = 0; i < len; i ++)
{
output = xcb_randr_get_output_info_reply(conn, ocookie[i], NULL);
if (output == NULL)
{
continue;
}
asprintf(&name, "%.*s",
xcb_randr_get_output_info_name_length(output),
xcb_randr_get_output_info_name(output));
PDEBUG("Name: %s\n", name);
PDEBUG("id: %d\n" , outputs[i]);
PDEBUG("Size: %d x %d mm.\n", output->mm_width, output->mm_height);
if (XCB_NONE != output->crtc)
{
icookie = xcb_randr_get_crtc_info(conn, output->crtc, timestamp);
crtc = xcb_randr_get_crtc_info_reply(conn, icookie, NULL);
if (NULL == crtc)
{
return;
}
PDEBUG("CRTC: at %d, %d, size: %d x %d.\n", crtc->x, crtc->y,
crtc->width, crtc->height);
/* Check if it's a clone. */
clonemon = findclones(outputs[i], crtc->x, crtc->y);
if (NULL != clonemon)
{
PDEBUG("Monitor %s, id %d is a clone of %s, id %d. Skipping.\n",
name, outputs[i],
clonemon->name, clonemon->id);
continue;
}
/* Do we know this monitor already? */
if (NULL == (mon = findmonitor(outputs[i])))
{
PDEBUG("Monitor not known, adding to list.\n");
addmonitor(outputs[i], name, crtc->x, crtc->y, crtc->width,
crtc->height);
}
else
{
bool changed = false;
/*
* We know this monitor. Update information. If it's
* smaller than before, rearrange windows.
*/
PDEBUG("Known monitor. Updating info.\n");
if (crtc->x != mon->x)
{
mon->x = crtc->x;
changed = true;
}
if (crtc->y != mon->y)
{
mon->y = crtc->y;
changed = true;
}
if (crtc->width != mon->width)
{
mon->width = crtc->width;
changed = true;
}
if (crtc->height != mon->height)
{
mon->height = crtc->height;
changed = true;
}
if (changed)
{
arrbymon(mon);
}
}
free(crtc);
}
else
{
PDEBUG("Monitor not used at the moment.\n");
/*
* Check if it was used before. If it was, do something.
*/
if ((mon = findmonitor(outputs[i])))
{
struct item *item;
struct client *client;
/* Check all windows on this monitor and move them to
* the next or to the first monitor if there is no
* next.
*
* FIXME: Use per monitor workspace list instead of
* global window list.
*/
for (item = winlist; item != NULL; item = item->next)
{
client = item->data;
if (client->monitor == mon)
{
if (NULL == client->monitor->item->next)
{
if (NULL == monlist)
{
client->monitor = NULL;
}
else
{
client->monitor = monlist->data;
}
}
else
{
client->monitor =
client->monitor->item->next->data;
}
fitonscreen(client);
}
} /* for */
/* It's not active anymore. Forget about it. */
delmonitor(mon);
}
}
free(output);
} /* for */
}
int x11_find_all_outputs(char*** out_outputs, size_t* out_outputs_count)
{
xcb_generic_error_t* error = NULL;
xcb_randr_query_version_cookie_t version_cookie;
xcb_randr_query_version_reply_t* version_reply = NULL;
const xcb_setup_t* setup;
xcb_screen_iterator_t iter;
xcb_screen_t* screen;
xcb_randr_get_screen_resources_current_cookie_t screen_cookie;
xcb_randr_get_output_info_cookie_t output_cookie;
xcb_randr_output_t* outputs = NULL;
*out_outputs_count = 0;
*out_outputs = NULL;
connection = xcb_connect(NULL, NULL);
if (connection == NULL)
goto pfail;
version_cookie = xcb_randr_query_version(connection, RANDR_VERSION_MAJOR, RANDR_VERSION_MINOR);
version_reply = xcb_randr_query_version_reply(connection, version_cookie, &error);
if ((error != NULL) || (version_reply == NULL))
{
if ((error == NULL) && (version_reply == NULL))
connection = NULL;
goto pfail;
}
if ((version_reply->major_version != RANDR_VERSION_MAJOR) ||
(version_reply->minor_version < RANDR_VERSION_MINOR))
{
fprintf(stderr, "%s: wrong RandR version\n", argv0);
goto fail;
}
free(version_reply), version_reply = NULL;
setup = xcb_get_setup(connection);
if (setup == NULL)
goto pfail;
iter = xcb_setup_roots_iterator(setup);
for (; iter.rem > 0; xcb_screen_next(&iter))
{
size_t i, n;
screen = iter.data;
if (screen == NULL)
abort();
screen_cookie = xcb_randr_get_screen_resources_current(connection, screen->root);
screen_reply = xcb_randr_get_screen_resources_current_reply(connection, screen_cookie, &error);
if (error != NULL)
goto pfail;
outputs = xcb_randr_get_screen_resources_current_outputs(screen_reply);
if (outputs == NULL)
goto pfail;
for (i = 0, n = (size_t)(screen_reply->num_outputs); i < n; i++)
{
uint8_t* name;
uint16_t length;
char* namez;
char** old;
output_cookie = xcb_randr_get_output_info(connection, outputs[i], screen_reply->config_timestamp);
output_reply = xcb_randr_get_output_info_reply(connection, output_cookie, &error);
if (error != NULL)
goto pfail;
if (output_reply->connection != XCB_RANDR_CONNECTION_CONNECTED)
goto next_output;
name = xcb_randr_get_output_info_name(output_reply);
length = output_reply->name_len;
if (name == NULL)
goto pfail;
*out_outputs = realloc(old = *out_outputs, (*out_outputs_count + 1) * sizeof(char*));
if (*out_outputs == NULL)
{
*out_outputs = old;
goto pfail;
}
namez = malloc(((size_t)length + 1) * sizeof(char));
if (namez == NULL)
goto pfail;
namez[length] = '\0';
while (length--)
namez[length] = (char)(name[length]);
(*out_outputs)[(*out_outputs_count)++] = namez;
next_output:
free(output_reply), output_reply = NULL;
}
free(screen_reply), screen_reply = NULL;
}
xcb_disconnect(connection);
return 0;
pfail:
perror(argv0);
fail:
free(version_reply);
free(screen_reply);
free(output_reply);
if (connection != NULL)
xcb_disconnect(connection);
return -1;
}
int x11_initialise_animation(int coarse_fine, double duration, double degrees, const char* output)
{
xcb_generic_error_t* error = NULL;
xcb_randr_query_version_cookie_t version_cookie;
xcb_randr_query_version_reply_t* version_reply = NULL;
const xcb_setup_t* setup;
xcb_screen_iterator_t iter;
xcb_screen_t* screen;
xcb_randr_get_screen_resources_current_cookie_t screen_cookie;
xcb_randr_get_output_info_cookie_t output_cookie;
xcb_randr_crtc_t* crtcs = NULL;
xcb_randr_output_t* outputs = NULL;
int found_output = 0;
size_t i, n;
xcb_randr_get_crtc_transform_cookie_t transform_cookie;
xcb_randr_get_crtc_transform_reply_t* transform_reply = NULL;
fine = coarse_fine ? (coarse_fine == 1) : 1;
connection = NULL;
screen_reply = NULL;
output_reply = NULL;
connection = xcb_connect(NULL, NULL);
if (connection == NULL)
goto pfail;
version_cookie = xcb_randr_query_version(connection, RANDR_VERSION_MAJOR, RANDR_VERSION_MINOR);
version_reply = xcb_randr_query_version_reply(connection, version_cookie, &error);
if ((error != NULL) || (version_reply == NULL))
{
if ((error == NULL) && (version_reply == NULL))
connection = NULL;
goto pfail;
}
if ((version_reply->major_version != RANDR_VERSION_MAJOR) ||
(version_reply->minor_version < RANDR_VERSION_MINOR))
{
fprintf(stderr, "%s: wrong RandR version\n", argv0);
goto fail;
}
free(version_reply), version_reply = NULL;
setup = xcb_get_setup(connection);
if (setup == NULL)
goto pfail;
iter = xcb_setup_roots_iterator(setup);
for (; (iter.rem > 0) && !found_output; xcb_screen_next(&iter))
{
screen = iter.data;
if (screen == NULL)
abort();
screen_cookie = xcb_randr_get_screen_resources_current(connection, screen->root);
screen_reply = xcb_randr_get_screen_resources_current_reply(connection, screen_cookie, &error);
if (error != NULL)
goto pfail;
crtcs = xcb_randr_get_screen_resources_current_crtcs(screen_reply);
outputs = xcb_randr_get_screen_resources_current_outputs(screen_reply);
if (outputs == NULL)
goto pfail;
for (i = 0, n = (size_t)(screen_reply->num_outputs); (i < n) && !found_output; i++)
{
uint8_t* name;
uint16_t length;
char* namez = NULL;
uint16_t j;
output_cookie = xcb_randr_get_output_info(connection, outputs[i], screen_reply->config_timestamp);
output_reply = xcb_randr_get_output_info_reply(connection, output_cookie, &error);
if (error != NULL)
goto pfail;
if (output_reply->connection != XCB_RANDR_CONNECTION_CONNECTED)
goto next_output;
name = xcb_randr_get_output_info_name(output_reply);
length = output_reply->name_len;
if (name == NULL)
goto pfail;
namez = malloc(((size_t)length + 1) * sizeof(char));
if (namez == NULL)
goto pfail;
namez[length] = '\0';
while (length--)
namez[length] = (char)(name[length]);
if (strcmp(namez, output))
goto next_output;
found_output = 1;
free(namez), namez = NULL;
for (j = 0; j < screen_reply->num_crtcs; j++)
if (crtcs[j] == output_reply->crtc)
break;
if (j == screen_reply->num_crtcs)
{
fprintf(stderr, "%s: could not find CRTC associated with output: %s\n", argv0, output);
goto fail;
}
crtc = crtcs[j];
goto exit_search_loop;
next_output:
free(namez);
free(output_reply), output_reply = NULL;
}
free(screen_reply), screen_reply = NULL;
}
exit_search_loop:
if (!found_output)
{
fprintf(stderr, "%s: could not find output: %s\n", argv0, output);
goto fail;
}
transform_cookie = xcb_randr_get_crtc_transform(connection, crtc);
transform_reply = xcb_randr_get_crtc_transform_reply(connection, transform_cookie, &error);
if (error != NULL)
goto pfail;
original_transform = transform_reply->pending_transform;
free(transform_reply);
return 0;
pfail:
perror(argv0);
fail:
free(version_reply);
free(screen_reply);
free(output_reply);
free(transform_reply);
if (connection != NULL)
xcb_disconnect(connection);
return -1;
return (void)duration, (void)degrees, -1; /* TODO */
}
bool import_monitors(void)
{
PUTS("import monitors");
xcb_randr_get_screen_resources_current_reply_t *sres = xcb_randr_get_screen_resources_current_reply(dpy, xcb_randr_get_screen_resources_current(dpy, root), NULL);
if (sres == NULL)
return false;
monitor_t *m, *mm = NULL;
int len = xcb_randr_get_screen_resources_current_outputs_length(sres);
xcb_randr_output_t *outputs = xcb_randr_get_screen_resources_current_outputs(sres);
xcb_randr_get_output_info_cookie_t cookies[len];
for (int i = 0; i < len; i++)
cookies[i] = xcb_randr_get_output_info(dpy, outputs[i], XCB_CURRENT_TIME);
for (m = mon_head; m != NULL; m = m->next)
m->wired = false;
for (int i = 0; i < len; i++) {
xcb_randr_get_output_info_reply_t *info = xcb_randr_get_output_info_reply(dpy, cookies[i], NULL);
if (info != NULL) {
if (info->crtc != XCB_NONE) {
xcb_randr_get_crtc_info_reply_t *cir = xcb_randr_get_crtc_info_reply(dpy, xcb_randr_get_crtc_info(dpy, info->crtc, XCB_CURRENT_TIME), NULL);
if (cir != NULL) {
xcb_rectangle_t rect = (xcb_rectangle_t) {cir->x, cir->y, cir->width, cir->height};
mm = get_monitor_by_id(outputs[i]);
if (mm != NULL) {
mm->rectangle = rect;
update_root(mm);
for (desktop_t *d = mm->desk_head; d != NULL; d = d->next)
for (node_t *n = first_extrema(d->root); n != NULL; n = next_leaf(n, d->root))
translate_client(mm, mm, n->client);
arrange(mm, mm->desk);
mm->wired = true;
PRINTF("update monitor %s (0x%X)\n", mm->name, mm->id);
} else {
mm = add_monitor(rect);
char *name = (char *)xcb_randr_get_output_info_name(info);
size_t name_len = MIN(sizeof(mm->name), (size_t)xcb_randr_get_output_info_name_length(info) + 1);
snprintf(mm->name, name_len, "%s", name);
mm->id = outputs[i];
PRINTF("add monitor %s (0x%X)\n", mm->name, mm->id);
}
}
free(cir);
} else if (!remove_disabled_monitor && info->connection != XCB_RANDR_CONNECTION_DISCONNECTED) {
m = get_monitor_by_id(outputs[i]);
if (m != NULL)
m->wired = true;
}
}
free(info);
}
/* initially focus the primary monitor and add the first desktop to it */
xcb_randr_get_output_primary_reply_t *gpo = xcb_randr_get_output_primary_reply(dpy, xcb_randr_get_output_primary(dpy, root), NULL);
if (gpo != NULL) {
pri_mon = get_monitor_by_id(gpo->output);
if (!running && pri_mon != NULL) {
if (mon != pri_mon)
mon = pri_mon;
add_desktop(pri_mon, make_desktop(NULL));
ewmh_update_current_desktop();
}
}
free(gpo);
/* handle overlapping monitors */
m = mon_head;
while (m != NULL) {
monitor_t *next = m->next;
if (m->wired) {
for (monitor_t *mb = mon_head; mb != NULL; mb = mb->next)
if (mb != m && mb->wired && (m->desk == NULL || mb->desk == NULL)
&& contains(mb->rectangle, m->rectangle)) {
if (mm == m)
mm = mb;
merge_monitors(m, mb);
remove_monitor(m);
break;
}
}
m = next;
}
/* merge and remove disconnected monitors */
m = mon_head;
while (m != NULL) {
monitor_t *next = m->next;
if (!m->wired) {
merge_monitors(m, mm);
remove_monitor(m);
}
m = next;
}
/* add one desktop to each new monitor */
for (m = mon_head; m != NULL; m = m->next)
if (m->desk == NULL && (running || pri_mon == NULL || m != pri_mon))
add_desktop(m, make_desktop(NULL));
free(sres);
update_motion_recorder();
return (num_monitors > 0);
}
/* Get the number of outputs */
static unsigned CountMonitors( vlc_object_t *obj )
{
char *psz_display = var_InheritString( obj, "x11-display" );
int snum;
xcb_connection_t *conn = xcb_connect( psz_display, &snum );
free( psz_display );
if( xcb_connection_has_error( conn ) )
return 0;
const xcb_setup_t *setup = xcb_get_setup( conn );
xcb_screen_t *scr = NULL;
for( xcb_screen_iterator_t i = xcb_setup_roots_iterator( setup );
i.rem > 0; xcb_screen_next( &i ) )
{
if( snum == 0 )
{
scr = i.data;
break;
}
snum--;
}
unsigned n = 0;
if( scr == NULL )
goto error;
xcb_randr_query_version_reply_t *v =
xcb_randr_query_version_reply( conn,
xcb_randr_query_version( conn, 1, 2 ), NULL );
if( v == NULL )
goto error;
msg_Dbg( obj, "using X RandR extension v%"PRIu32".%"PRIu32,
v->major_version, v->minor_version );
free( v );
xcb_randr_get_screen_resources_reply_t *r =
xcb_randr_get_screen_resources_reply( conn,
xcb_randr_get_screen_resources( conn, scr->root ), NULL );
if( r == NULL )
goto error;
const xcb_randr_output_t *outputs =
xcb_randr_get_screen_resources_outputs( r );
for( unsigned i = 0; i < r->num_outputs; i++ )
{
xcb_randr_get_output_info_reply_t *output =
xcb_randr_get_output_info_reply( conn,
xcb_randr_get_output_info( conn, outputs[i], 0 ), NULL );
if( output == NULL )
continue;
/* FIXME: do not count cloned outputs multiple times */
/* XXX: what to do with UNKNOWN state connections? */
n += output->connection == XCB_RANDR_CONNECTION_CONNECTED;
free( output );
}
free( r );
msg_Dbg( obj, "X randr has %u outputs", n );
error:
xcb_disconnect( conn );
return n;
}
/* @brief Attempts to find secondary displays and updates settings.screen_* data
* with the dimensions of the found screens.
*
* Note: failure is somewhat expected and is handled by simply using the default
* xcb screen's dimension parameters.
*
* @param connection A connection to the Xorg server.
* @param screen A screen created by xcb's xcb_setup_roots function.
* @return 0 on success and 1 on failure.
*/
static int32_t get_multiscreen_settings(xcb_connection_t *connection, xcb_screen_t *screen) {
/* First check randr. */
const xcb_query_extension_reply_t *extension_reply = xcb_get_extension_data(connection, &xcb_randr_id);
if (extension_reply && extension_reply->present) {
debug("Found randr support, searching for displays.\n");
/* Find x, y and width, height. */
xcb_randr_get_screen_resources_current_reply_t *randr_reply = xcb_randr_get_screen_resources_current_reply(connection, xcb_randr_get_screen_resources_current(connection, screen->root), NULL);
if (!randr_reply) {
fprintf(stderr, "Failed to get randr set up.\n");
} else {
int32_t num_outputs = xcb_randr_get_screen_resources_current_outputs_length(randr_reply);
if (num_outputs < settings.screen) {
fprintf(stderr, "Screen selected not found.\n");
/* Default back to the first screen. */
settings.screen = 0;
}
xcb_randr_output_t *outputs = xcb_randr_get_screen_resources_current_outputs(randr_reply);
uint32_t output_index = settings.screen;
xcb_randr_get_output_info_reply_t *randr_output = NULL;
do {
if (randr_output) { free(randr_output); }
randr_output = xcb_randr_get_output_info_reply(connection, xcb_randr_get_output_info(connection, outputs[output_index], XCB_CURRENT_TIME), NULL);
output_index++;
} while ((randr_output->connection != XCB_RANDR_CONNECTION_CONNECTED) && (output_index < num_outputs));
if (randr_output) {
xcb_randr_get_crtc_info_reply_t *randr_crtc = xcb_randr_get_crtc_info_reply(connection, xcb_randr_get_crtc_info(connection, randr_output->crtc, XCB_CURRENT_TIME), NULL);
if (!randr_crtc) {
fprintf(stderr, "Unable to connect to randr crtc\n");
free(randr_output);
free(randr_reply);
goto xinerama;
}
settings.screen_width = randr_crtc->width;
settings.screen_height = randr_crtc->height;
settings.screen_x = randr_crtc->x;
settings.screen_y = randr_crtc->y;
debug("randr screen initialization successful, x: %u y: %u w: %u h: %u.\n", settings.screen_x, settings.screen_y, settings.screen_width, settings.screen_height);
free(randr_crtc);
free(randr_output);
free(randr_reply);
return 0;
}
free(randr_output);
free(randr_reply);
}
}
xinerama:
debug("Did not find randr support, attempting xinerama\n");
/* Still here? Let's try xinerama! */
extension_reply = xcb_get_extension_data(connection, &xcb_xinerama_id);
if (extension_reply && extension_reply->present) {
debug("Found xinerama support, searching for displays.\n");
xcb_xinerama_is_active_reply_t *xinerama_is_active_reply = xcb_xinerama_is_active_reply(connection, xcb_xinerama_is_active(connection), NULL);
if (xinerama_is_active_reply && xinerama_is_active_reply->state) {
free(xinerama_is_active_reply);
/* Find x, y and width, height. */
xcb_xinerama_query_screens_reply_t *screen_reply = xcb_xinerama_query_screens_reply(connection, xcb_xinerama_query_screens_unchecked(connection), NULL);
xcb_xinerama_screen_info_iterator_t iter = xcb_xinerama_query_screens_screen_info_iterator(screen_reply);
free(screen_reply);
if (iter.rem < settings.screen) {
fprintf(stderr, "Screen selected not found.\n");
/* Default back to the first screen. */
settings.screen = 0;
}
/* Jump to the appropriate screen. */
int32_t i = 0;
while (i < settings.screen) {
xcb_xinerama_screen_info_next(&iter);
i++;
}
settings.screen_width = iter.data->width;
settings.screen_height = iter.data->height;
settings.screen_x = iter.data->x_org;
settings.screen_y = iter.data->y_org;
debug("xinerama screen initialization successful, x: %u y: %u w: %u h: %u.\n", settings.screen_x, settings.screen_y, settings.screen_width, settings.screen_height);
return 0;
}
}
debug("Multiscreen search failed.\n");
return 1;
}
bool update_monitors(void)
{
xcb_randr_get_screen_resources_reply_t *sres = xcb_randr_get_screen_resources_reply(dpy, xcb_randr_get_screen_resources(dpy, root), NULL);
if (sres == NULL) {
return false;
}
monitor_t *m, *mm = NULL;
int len = xcb_randr_get_screen_resources_outputs_length(sres);
xcb_randr_output_t *outputs = xcb_randr_get_screen_resources_outputs(sres);
xcb_randr_get_output_info_cookie_t cookies[len];
for (int i = 0; i < len; i++) {
cookies[i] = xcb_randr_get_output_info(dpy, outputs[i], XCB_CURRENT_TIME);
}
for (m = mon_head; m != NULL; m = m->next) {
m->wired = false;
}
for (int i = 0; i < len; i++) {
xcb_randr_get_output_info_reply_t *info = xcb_randr_get_output_info_reply(dpy, cookies[i], NULL);
if (info != NULL) {
if (info->crtc != XCB_NONE) {
xcb_randr_get_crtc_info_reply_t *cir = xcb_randr_get_crtc_info_reply(dpy, xcb_randr_get_crtc_info(dpy, info->crtc, XCB_CURRENT_TIME), NULL);
if (cir != NULL) {
xcb_rectangle_t rect = (xcb_rectangle_t) {cir->x, cir->y, cir->width, cir->height};
mm = get_monitor_by_randr_id(outputs[i]);
if (mm != NULL) {
update_root(mm, &rect);
mm->wired = true;
} else {
mm = make_monitor(&rect, XCB_NONE);
char *name = (char *)xcb_randr_get_output_info_name(info);
int len = xcb_randr_get_output_info_name_length(info);
size_t name_size = MIN(sizeof(mm->name), (size_t) len + 1);
snprintf(mm->name, name_size, "%s", name);
mm->randr_id = outputs[i];
add_monitor(mm);
}
}
free(cir);
} else if (!remove_disabled_monitors && info->connection != XCB_RANDR_CONNECTION_DISCONNECTED) {
m = get_monitor_by_randr_id(outputs[i]);
if (m != NULL) {
m->wired = true;
}
}
}
free(info);
}
xcb_randr_get_output_primary_reply_t *gpo = xcb_randr_get_output_primary_reply(dpy, xcb_randr_get_output_primary(dpy, root), NULL);
if (gpo != NULL) {
pri_mon = get_monitor_by_randr_id(gpo->output);
}
free(gpo);
/* handle overlapping monitors */
if (merge_overlapping_monitors) {
m = mon_head;
while (m != NULL) {
monitor_t *next = m->next;
if (m->wired) {
monitor_t *mb = mon_head;
while (mb != NULL) {
monitor_t *mb_next = mb->next;
if (m != mb && mb->wired && contains(m->rectangle, mb->rectangle)) {
if (mm == mb) {
mm = m;
}
if (next == mb) {
next = mb_next;
}
merge_monitors(mb, m);
remove_monitor(mb);
}
mb = mb_next;
}
}
m = next;
}
}
/* merge and remove disconnected monitors */
if (remove_unplugged_monitors) {
m = mon_head;
while (m != NULL) {
monitor_t *next = m->next;
if (!m->wired) {
merge_monitors(m, mm);
remove_monitor(m);
}
m = next;
}
}
/* add one desktop to each new monitor */
for (m = mon_head; m != NULL; m = m->next) {
if (m->desk == NULL) {
add_desktop(m, make_desktop(NULL, XCB_NONE));
}
}
if (!running && mon != NULL) {
if (pri_mon != NULL) {
mon = pri_mon;
}
center_pointer(mon->rectangle);
ewmh_update_current_desktop();
}
free(sres);
return (mon != NULL);
}
static gboolean
_eventd_nd_xcb_randr_check_outputs(EventdNdBackendContext *self)
{
if ( ( self->follow_focus == EVENTD_ND_XCB_FOLLOW_FOCUS_NONE ) && ( self->outputs == NULL ) )
return FALSE;
xcb_randr_get_screen_resources_current_cookie_t rcookie;
xcb_randr_get_screen_resources_current_reply_t *ressources;
rcookie = xcb_randr_get_screen_resources_current(self->xcb_connection, self->screen->root);
if ( ( ressources = xcb_randr_get_screen_resources_current_reply(self->xcb_connection, rcookie, NULL) ) == NULL )
{
g_warning("Couldn't get RandR screen ressources");
return FALSE;
}
xcb_timestamp_t cts;
xcb_randr_output_t *randr_outputs;
gint i, length;
cts = ressources->config_timestamp;
length = xcb_randr_get_screen_resources_current_outputs_length(ressources);
randr_outputs = xcb_randr_get_screen_resources_current_outputs(ressources);
EventdNdXcbRandrOutput outputs[length + 1];
EventdNdXcbRandrOutput *output;
output = outputs;
for ( i = 0 ; i < length ; ++i )
{
xcb_randr_get_output_info_cookie_t ocookie;
ocookie = xcb_randr_get_output_info(self->xcb_connection, randr_outputs[i], cts);
if ( ( output->output = xcb_randr_get_output_info_reply(self->xcb_connection, ocookie, NULL) ) == NULL )
continue;
xcb_randr_get_crtc_info_cookie_t ccookie;
ccookie = xcb_randr_get_crtc_info(self->xcb_connection, output->output->crtc, cts);
if ( ( output->crtc = xcb_randr_get_crtc_info_reply(self->xcb_connection, ccookie, NULL) ) == NULL )
free(output->output);
else
++output;
}
output->output = NULL;
gboolean found;
if ( self->follow_focus != EVENTD_ND_XCB_FOLLOW_FOCUS_NONE )
found = _eventd_nd_xcb_randr_check_focused(self, outputs);
else
found = _eventd_nd_xcb_randr_check_config_outputs(self, outputs);
for ( output = outputs ; output->output != NULL ; ++output )
{
free(output->crtc);
free(output->output);
}
return found;
}
bool ScreenManager::scanRandR(xcb_connection_t *conn)
{
if (!configureRandR(conn)) {
LOG_ERROR("RandR extension not found.");
return false;
}
xcb_randr_get_screen_resources_current_reply_t *res =
xcb_randr_get_screen_resources_current_reply(conn,
xcb_randr_get_screen_resources_current(conn, _rootWindow), NULL);
if (!res) {
LOG_ERROR("Failed to retrieve screen resources by RandR.");
return false;
}
int length = xcb_randr_get_screen_resources_current_outputs_length(res);
xcb_randr_output_t *outputs =
xcb_randr_get_screen_resources_current_outputs(res);
std::vector<xcb_randr_get_output_info_cookie_t> cookies;
xcb_randr_get_output_info_reply_t *output_info;
xcb_randr_get_crtc_info_reply_t *crtc;
char *output_name;
if (length == 0) {
LOG_ERROR("No screen found using RandR.");
return false;
} else {
LOG_INFO("Found %d screen(s).", length);
}
for (int i = 0; i < length; i++) {
cookies.push_back(xcb_randr_get_output_info(conn, outputs[i],
res->config_timestamp));
}
for (auto iter = cookies.begin(); iter != cookies.end(); ++iter) {
output_info = xcb_randr_get_output_info_reply(conn, *iter, NULL);
if (output_info == NULL) {
continue;
}
asprintf(&output_name, "%.*s",
xcb_randr_get_output_info_name_length(output_info),
xcb_randr_get_output_info_name(output_info));
Screen s;
s.setName(output_name);
free(output_name);
if (output_info->crtc == XCB_NONE) {
LOG_INFO(" Screen %s is disabled.", s.getName().c_str());
continue;
}
crtc = xcb_randr_get_crtc_info_reply(conn,
xcb_randr_get_crtc_info(
conn, output_info->crtc, res->config_timestamp),
NULL);
if (!crtc) {
LOG_ERROR("Failed to retrieve CRTC on screen %s.",
s.getName().c_str());
return 0;
}
s.setX(crtc->x);
s.setY(crtc->y);
s.setWidth(crtc->width);
s.setHeight(crtc->height);
updateScreen(s);
free(crtc);
free(output_info);
}
free(res);
return true;
}
