use wlr_scene_set_gamma_control_manager_v1() (wlroots!4192)

References: https://gitlab.freedesktop.org/wlroots/wlroots/-/merge_requests/4192

dwl.c

@@ -327,7 +327,6 @@ static void setcursor(struct wl_listener *listener, void *data);
 static void setcursorshape(struct wl_listener *listener, void *data);
 static void setfloating(Client *c, int floating);
 static void setfullscreen(Client *c, int fullscreen);
-static void setgamma(struct wl_listener *listener, void *data);
 static void setlayout(const Arg *arg);
 static void setmfact(const Arg *arg);
 static void setmon(Client *c, Monitor *m, uint32_t newtags);
@@ -383,7 +382,6 @@ static struct wlr_idle_notifier_v1 *idle_notifier;
 static struct wlr_idle_inhibit_manager_v1 *idle_inhibit_mgr;
 static struct wlr_layer_shell_v1 *layer_shell;
 static struct wlr_output_manager_v1 *output_mgr;
-static struct wlr_gamma_control_manager_v1 *gamma_control_mgr;
 static struct wlr_virtual_keyboard_manager_v1 *virtual_keyboard_mgr;
 static struct wlr_virtual_pointer_manager_v1 *virtual_pointer_mgr;
 static struct wlr_cursor_shape_manager_v1 *cursor_shape_mgr;
@@ -2100,7 +2098,6 @@ rendermon(struct wl_listener *listener, void *data)
 	Monitor *m = wl_container_of(listener, m, frame);
 	Client *c;
 	struct wlr_output_state pending = {0};
-	struct wlr_gamma_control_v1 *gamma_control;
 	struct timespec now;
 
 	/* Render if no XDG clients have an outstanding resize and are visible on
@@ -2110,32 +2107,7 @@ rendermon(struct wl_listener *listener, void *data)
 			goto skip;
 	}
 
-	/*
+	wlr_scene_output_commit(m->scene_output, NULL);
-	 * HACK: The "correct" way to set the gamma is to commit it together with
-	 * the rest of the state in one go, but to do that we would need to rewrite
-	 * wlr_scene_output_commit() in order to add the gamma to the pending
-	 * state before committing, instead try to commit the gamma in one frame,
-	 * and commit the rest of the state in the next one (or in the same frame if
-	 * the gamma can not be committed).
-	 */
-	if (m->gamma_lut_changed) {
-		gamma_control
-				= wlr_gamma_control_manager_v1_get_control(gamma_control_mgr, m->wlr_output);
-		m->gamma_lut_changed = 0;
-
-		if (!wlr_gamma_control_v1_apply(gamma_control, &pending))
-			goto commit;
-
-		if (!wlr_output_test_state(m->wlr_output, &pending)) {
-			wlr_gamma_control_v1_send_failed_and_destroy(gamma_control);
-			goto commit;
-		}
-		wlr_output_commit_state(m->wlr_output, &pending);
-		wlr_output_schedule_frame(m->wlr_output);
-	} else {
-commit:
-		wlr_scene_output_commit(m->scene_output, NULL);
-	}
 
 skip:
 	/* Let clients know a frame has been rendered */
@@ -2337,17 +2309,6 @@ setfullscreen(Client *c, int fullscreen)
 	printstatus();
 }
 
-void
-setgamma(struct wl_listener *listener, void *data)
-{
-	struct wlr_gamma_control_manager_v1_set_gamma_event *event = data;
-	Monitor *m = event->output->data;
-	if (!m)
-		return;
-	m->gamma_lut_changed = 1;
-	wlr_output_schedule_frame(m->wlr_output);
-}
-
 void
 setlayout(const Arg *arg)
 {
@@ -2508,8 +2469,7 @@ setup(void)
 	activation = wlr_xdg_activation_v1_create(dpy);
 	LISTEN_STATIC(&activation->events.request_activate, urgent);
 
-	gamma_control_mgr = wlr_gamma_control_manager_v1_create(dpy);
+	wlr_scene_set_gamma_control_manager_v1(scene, wlr_gamma_control_manager_v1_create(dpy));
-	LISTEN_STATIC(&gamma_control_mgr->events.set_gamma, setgamma);
 
 	power_mgr = wlr_output_power_manager_v1_create(dpy);
 	LISTEN_STATIC(&power_mgr->events.set_mode, powermgrsetmode);