output: add description

wlr_output.description is a string containing a human-readable string
identifying the output. Compositors can customise it via
wlr_output_set_description, for instance to make the name more
user-friendly.

References: https://github.com/swaywm/wlroots/issues/1623
This commit is contained in:
Simon Ser 2019-12-26 16:09:05 +01:00 committed by Brian Ashworth
parent a420d2c41e
commit 4da4a15d6b
7 changed files with 48 additions and 0 deletions

View File

@ -1348,6 +1348,12 @@ void scan_drm_connectors(struct wlr_drm_backend *drm) {
parse_edid(&wlr_conn->output, edid_len, edid);
free(edid);
struct wlr_output *output = &wlr_conn->output;
char description[128];
snprintf(description, sizeof(description), "%s %s %s (%s)",
output->make, output->model, output->serial, output->name);
wlr_output_set_description(output, description);
wlr_log(WLR_INFO, "Detected modes:");
for (int i = 0; i < drm_conn->count_modes; ++i) {

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@ -121,6 +121,11 @@ struct wlr_output *wlr_headless_add_output(struct wlr_backend *wlr_backend,
snprintf(wlr_output->name, sizeof(wlr_output->name), "HEADLESS-%zd",
++backend->last_output_num);
char description[128];
snprintf(description, sizeof(description),
"Headless output %zd", backend->last_output_num);
wlr_output_set_description(wlr_output, description);
if (!wlr_egl_make_current(&output->backend->egl, output->egl_surface,
NULL)) {
goto error;

View File

@ -278,6 +278,11 @@ struct wlr_rdp_output *wlr_rdp_output_create(struct wlr_rdp_backend *backend,
snprintf(wlr_output->name, sizeof(wlr_output->name), "RDP-%d",
wl_list_length(&backend->clients));
char description[128];
snprintf(description, sizeof(description),
"RDP output %d", wl_list_length(&backend->clients));
wlr_output_set_description(wlr_output, description);
if (!wlr_egl_make_current(&output->backend->egl, output->egl_surface,
NULL)) {
goto error;

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@ -458,6 +458,11 @@ struct wlr_output *wlr_wl_output_create(struct wlr_backend *wlr_backend) {
snprintf(wlr_output->name, sizeof(wlr_output->name), "WL-%zd",
++backend->last_output_num);
char description[128];
snprintf(description, sizeof(description),
"Wayland output %zd", backend->last_output_num);
wlr_output_set_description(wlr_output, description);
output->backend = backend;
wl_list_init(&output->presentation_feedbacks);

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@ -149,6 +149,11 @@ struct wlr_output *wlr_x11_output_create(struct wlr_backend *backend) {
++x11->last_output_num);
parse_xcb_setup(wlr_output, x11->xcb);
char description[128];
snprintf(description, sizeof(description),
"X11 output %zd", x11->last_output_num);
wlr_output_set_description(wlr_output, description);
uint32_t mask = XCB_CW_EVENT_MASK;
uint32_t values[] = {
XCB_EVENT_MASK_EXPOSURE | XCB_EVENT_MASK_STRUCTURE_NOTIFY

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@ -90,6 +90,7 @@ struct wlr_output {
struct wl_list resources;
char name[24];
char *description; // may be NULL
char make[56];
char model[16];
char serial[16];
@ -133,6 +134,7 @@ struct wlr_output {
struct wl_signal mode;
struct wl_signal scale;
struct wl_signal transform;
struct wl_signal description;
struct wl_signal destroy;
} events;
@ -214,6 +216,7 @@ void wlr_output_set_transform(struct wlr_output *output,
void wlr_output_set_scale(struct wlr_output *output, float scale);
void wlr_output_set_subpixel(struct wlr_output *output,
enum wl_output_subpixel subpixel);
void wlr_output_set_description(struct wlr_output *output, const char *desc);
/**
* Schedule a done event.
*

View File

@ -270,6 +270,22 @@ void wlr_output_set_subpixel(struct wlr_output *output,
wlr_output_schedule_done(output);
}
void wlr_output_set_description(struct wlr_output *output, const char *desc) {
if (output->description != NULL && desc != NULL &&
strcmp(output->description, desc) == 0) {
return;
}
free(output->description);
if (desc != NULL) {
output->description = strdup(desc);
} else {
output->description = NULL;
}
wlr_signal_emit_safe(&output->events.description, output);
}
static void schedule_done_handle_idle_timer(void *data) {
struct wlr_output *output = data;
output->idle_done = NULL;
@ -323,6 +339,7 @@ void wlr_output_init(struct wlr_output *output, struct wlr_backend *backend,
wl_signal_init(&output->events.mode);
wl_signal_init(&output->events.scale);
wl_signal_init(&output->events.transform);
wl_signal_init(&output->events.description);
wl_signal_init(&output->events.destroy);
pixman_region32_init(&output->damage);
pixman_region32_init(&output->pending.damage);
@ -365,6 +382,8 @@ void wlr_output_destroy(struct wlr_output *output) {
wl_event_source_remove(output->idle_done);
}
free(output->description);
pixman_region32_fini(&output->pending.damage);
pixman_region32_fini(&output->damage);