gamma-control-v1 now requires manual application of LUTs

include/waybox/output.h

@@ -18,10 +18,11 @@ struct wb_output {
 		struct wlr_scene_tree *shell_top;
 	} layers;
 
-#if ! WLR_CHECK_VERSION(0, 17, 0)
-	/* DEPRECATED: Use a tool like swaybg instead */
+#if ! WLR_CHECK_VERSION(0, 18, 0)
+	/* DEPRECATED: Use a tool like swaybg or hyprpaper instead */
 	struct wlr_scene_rect *background;
 #endif
+	bool gamma_lut_changed;
 	struct wlr_box geometry;
 
 	struct wl_listener destroy;
@@ -53,8 +54,9 @@ struct wb_view {
 	struct wlr_box previous_geometry;
 };
 
-void output_frame_notify(struct wl_listener* listener, void *data);
-void output_destroy_notify(struct wl_listener* listener, void *data);
-void new_output_notify(struct wl_listener* listener, void *data);
+void handle_gamma_control_set_gamma(struct wl_listener *listener, void *data);
+void output_frame_notify(struct wl_listener *listener, void *data);
+void output_destroy_notify(struct wl_listener *listener, void *data);
+void new_output_notify(struct wl_listener *listener, void *data);
 
 #endif /* output.h */

include/waybox/server.h

@@ -43,6 +43,7 @@ struct wb_server {
 	struct wlr_allocator *allocator;
 	struct wlr_backend *backend;
 	struct wlr_compositor *compositor;
+	struct wlr_gamma_control_manager_v1 *gamma_control_manager;
 	struct wlr_idle_notifier_v1 *idle_notifier;
 	struct wlr_output_layout *output_layout;
 	struct wlr_xdg_output_manager_v1 *output_manager;
@@ -65,6 +66,7 @@ struct wb_server {
 	struct wlr_layer_shell_v1 *layer_shell;
 	struct wlr_xdg_shell *xdg_shell;
 
+	struct wl_listener gamma_control_set_gamma;
 	struct wl_listener new_layer_surface;
 	struct wl_listener new_xdg_surface;
 	struct wl_listener new_xdg_decoration;

waybox/output.c

@@ -10,12 +10,30 @@ void output_frame_notify(struct wl_listener *listener, void *data) {
 
 	wlr_output_layout_get_box(output->server->output_layout,
 			output->wlr_output, &output->geometry);
-#if ! WLR_CHECK_VERSION(0, 17, 0)
+#if ! WLR_CHECK_VERSION(0, 18, 0)
 	/* Update the background for the current output size. */
 	wlr_scene_rect_set_size(output->background,
 			output->geometry.width, output->geometry.height);
 #endif
 
+	if (output->gamma_lut_changed) {
+		output->gamma_lut_changed = false;
+#if WLR_CHECK_VERSION(0, 17, 0)
+		struct wlr_gamma_control_v1 *gamma_control =
+			wlr_gamma_control_manager_v1_get_control(output->server->gamma_control_manager,
+					output->wlr_output);
+		if (!wlr_gamma_control_v1_apply(gamma_control, &output->wlr_output->pending)) {
+			return;
+		}
+#endif
+		if (!wlr_output_test(output->wlr_output)) {
+			wlr_output_rollback(output->wlr_output);
+#if WLR_CHECK_VERSION(0, 17, 0)
+			wlr_gamma_control_v1_send_failed_and_destroy(gamma_control);
+#endif
+		}
+	}
+
 	/* Render the scene if needed and commit the output */
 	wlr_scene_output_commit(scene_output);
 
@@ -32,6 +50,13 @@ void output_request_state_notify(struct wl_listener *listener, void *data) {
 	const struct wlr_output_event_request_state *event = data;
 	wlr_output_commit_state(output->wlr_output, event->state);
 }
+
+void handle_gamma_control_set_gamma(struct wl_listener *listener, void *data) {
+	const struct wlr_gamma_control_manager_v1_set_gamma_event *event = data;
+	struct wb_output *output = event->output->data;
+	output->gamma_lut_changed = true;
+	wlr_output_schedule_frame(output->wlr_output);
+}
 #endif
 
 void output_destroy_notify(struct wl_listener *listener, void *data) {
@@ -68,19 +93,16 @@ void new_output_notify(struct wl_listener *listener, void *data) {
 
 #if WLR_CHECK_VERSION(0, 17, 0)
 	struct wlr_output_mode *mode = wlr_output_preferred_mode(wlr_output);
+	struct wlr_output_state state;
+	wlr_output_state_init(&state);
+	wlr_output_state_set_enabled(&state, true);
+
 	if (mode != NULL) {
-		struct wlr_output_state state = {0};
 		wlr_output_state_set_mode(&state, mode);
-		wlr_output_state_set_enabled(&state, true);
-
-		if (!wlr_output_commit_state(wlr_output, &state)) {
-			wlr_output_state_finish(&state);
-			wlr_log_errno(WLR_ERROR, "%s", _("Couldn't commit state to output"));
-			return;
-		}
-
-		wlr_output_state_finish(&state);
 	}
+
+	wlr_output_state_finish(&state);
+	wlr_output_commit_state(wlr_output, &state);
 #else
 	if (!wl_list_empty(&wlr_output->modes)) {
 		struct wlr_output_mode *mode = wlr_output_preferred_mode(wlr_output);
@@ -99,7 +121,7 @@ void new_output_notify(struct wl_listener *listener, void *data) {
 	output->wlr_output = wlr_output;
 	wlr_output->data = output;
 
-#if ! WLR_CHECK_VERSION(0, 17, 0)
+#if ! WLR_CHECK_VERSION(0, 18, 0)
 	/* Set the background color */
 	float color[4] = {0.1875, 0.1875, 0.1875, 1.0};
 	output->background = wlr_scene_rect_create(&server->scene->tree, 0, 0, color);

waybox/server.c

@@ -96,11 +96,18 @@ bool wb_start_server(struct wb_server* server) {
 	wlr_log(WLR_INFO, "%s: WAYLAND_DISPLAY=%s", _("Running Wayland compositor on Wayland display"), socket);
 	setenv("WAYLAND_DISPLAY", socket, true);
 
-	wlr_gamma_control_manager_v1_create(server->wl_display);
+	wlr_data_device_manager_create(server->wl_display);
+
+	server->gamma_control_manager =
+		wlr_gamma_control_manager_v1_create(server->wl_display);
+#if WLR_CHECK_VERSION(0, 17, 0)
+	server->gamma_control_set_gamma.notify = handle_gamma_control_set_gamma;
+	wl_signal_add(&server->gamma_control_manager->events.set_gamma, &server->gamma_control_set_gamma);
+#endif
+
 	wlr_screencopy_manager_v1_create(server->wl_display);
 	server->idle_notifier = wlr_idle_notifier_v1_create(server->wl_display);
 
-	wlr_data_device_manager_create(server->wl_display);
 	wl_list_init(&server->views);
 	init_xdg_decoration(server);
 	init_layer_shell(server);