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output: factor out configure_new_output() from new_output_notify()

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... to make it possible in future to *not* immediately auto-configure
new outputs when connected. No functional change intended at this time.
This commit is contained in:
John Lindgren 2024-10-19 20:12:10 -04:00 • committed by Johan Malm
parent c38cb5f59c
commit 62a25da575
1 changed files with 64 additions and 57 deletions
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121
src/output.c
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@ -287,6 +287,69 @@ add_output_to_layout(struct server *server, struct output *output)
}
}
static void
configure_new_output(struct server *server, struct output *output)
{
struct wlr_output *wlr_output = output->wlr_output;
wlr_log(WLR_DEBUG, "enable output");
wlr_output_state_set_enabled(&output->pending, true);
/*
* Try to re-use the existing mode if configured to do so.
* Failing that, try to set the preferred mode.
*/
struct wlr_output_mode *preferred_mode = NULL;
if (!rc.reuse_output_mode || !can_reuse_mode(output)) {
wlr_log(WLR_DEBUG, "set preferred mode");
/* The mode is a tuple of (width, height, refresh rate). */
preferred_mode = wlr_output_preferred_mode(wlr_output);
if (preferred_mode) {
wlr_output_state_set_mode(&output->pending,
preferred_mode);
}
}
/*
* Sometimes the preferred mode is not available due to hardware
* constraints (e.g. GPU or cable bandwidth limitations). In these
* cases it's better to fallback to lower modes than to end up with
* a black screen. See sway@4cdc4ac6
*/
if (!wlr_output_test_state(wlr_output, &output->pending)) {
wlr_log(WLR_DEBUG,
"preferred mode rejected, falling back to another mode");
struct wlr_output_mode *mode;
wl_list_for_each(mode, &wlr_output->modes, link) {
if (mode == preferred_mode) {
continue;
}
wlr_output_state_set_mode(&output->pending, mode);
if (wlr_output_test_state(wlr_output, &output->pending)) {
break;
}
}
}
if (rc.adaptive_sync == LAB_ADAPTIVE_SYNC_ENABLED) {
output_enable_adaptive_sync(output, true);
}
output_state_commit(output);
wlr_output_effective_resolution(wlr_output,
&output->usable_area.width, &output->usable_area.height);
/*
* Wait until wlr_output_layout_add_auto() returns before
* calling do_output_layout_change(); this ensures that the
* wlr_output_cursor is created for the new output.
*/
server->pending_output_layout_change++;
add_output_to_layout(server, output);
server->pending_output_layout_change--;
}
static void
new_output_notify(struct wl_listener *listener, void *data)
{
@ -353,53 +416,6 @@ new_output_notify(struct wl_listener *listener, void *data)
output->server = server;
output_state_init(output);
wlr_log(WLR_DEBUG, "enable output");
wlr_output_state_set_enabled(&output->pending, true);
/*
* Try to re-use the existing mode if configured to do so.
* Failing that, try to set the preferred mode.
*/
struct wlr_output_mode *preferred_mode = NULL;
if (!rc.reuse_output_mode || !can_reuse_mode(output)) {
wlr_log(WLR_DEBUG, "set preferred mode");
/* The mode is a tuple of (width, height, refresh rate). */
preferred_mode = wlr_output_preferred_mode(wlr_output);
if (preferred_mode) {
wlr_output_state_set_mode(&output->pending,
preferred_mode);
}
}
/*
* Sometimes the preferred mode is not available due to hardware
* constraints (e.g. GPU or cable bandwidth limitations). In these
* cases it's better to fallback to lower modes than to end up with
* a black screen. See sway@4cdc4ac6
*/
if (!wlr_output_test_state(wlr_output, &output->pending)) {
wlr_log(WLR_DEBUG,
"preferred mode rejected, falling back to another mode");
struct wlr_output_mode *mode;
wl_list_for_each(mode, &wlr_output->modes, link) {
if (mode == preferred_mode) {
continue;
}
wlr_output_state_set_mode(&output->pending, mode);
if (wlr_output_test_state(wlr_output, &output->pending)) {
break;
}
}
}
if (rc.adaptive_sync == LAB_ADAPTIVE_SYNC_ENABLED) {
output_enable_adaptive_sync(output, true);
}
output_state_commit(output);
wlr_output_effective_resolution(wlr_output,
&output->usable_area.width, &output->usable_area.height);
wl_list_insert(&server->outputs, &output->link);
output->destroy.notify = output_destroy_notify;
@ -450,16 +466,7 @@ new_output_notify(struct wl_listener *listener, void *data)
wlr_scene_node_raise_to_top(&output->layer_popup_tree->node);
wlr_scene_node_raise_to_top(&output->session_lock_tree->node);
/*
* Wait until wlr_output_layout_add_auto() returns before
* calling do_output_layout_change(); this ensures that the
* wlr_output_cursor is created for the new output.
*/
server->pending_output_layout_change++;
add_output_to_layout(server, output);
server->pending_output_layout_change--;
configure_new_output(server, output);
do_output_layout_change(server);
}