opt: ensure auto schedule next frame when animaiton not end

Author: DreamMaoMao

src/animation/client.h

@@ -840,8 +840,7 @@ void init_fadeout_client(Client *c) {
 	wl_list_insert(&fadeout_clients, &fadeout_cient->fadeout_link);
 
 	// 请求刷新屏幕
-	if (c->mon)
-		wlr_output_schedule_frame(c->mon->wlr_output);
+	request_fresh_all_monitors();
 }
 
 void client_commit(Client *c) {
@@ -860,8 +859,7 @@ void client_commit(Client *c) {
 		c->animation.should_animate = false;
 	}
 	// 请求刷新屏幕
-	if (c->mon)
-		wlr_output_schedule_frame(c->mon->wlr_output);
+	request_fresh_all_monitors();
 }
 
 void client_set_pending_state(Client *c) {

src/animation/common.h

@@ -250,3 +250,13 @@ struct wlr_scene_tree *wlr_scene_tree_snapshot(struct wlr_scene_node *node,
 
 	return snapshot;
 }
+
+void request_fresh_all_monitors(void) {
+	Monitor *m = NULL;
+	wl_list_for_each(m, &mons, link) {
+		if (!m->wlr_output->enabled) {
+			continue;
+		}
+		wlr_output_schedule_frame(m->wlr_output);
+	}
+}

src/dispatch/bind_define.h

@@ -31,13 +31,28 @@ int32_t bind_to_view(const Arg *arg) {
 }
 
 int32_t chvt(const Arg *arg) {
+	struct timespec ts;
 
+	// prevent the animation to rquest the new frame
+	allow_frame_scheduling = false;
+
+	// backup current tag and monitor name
 	if (selmon) {
 		chvt_backup_tag = selmon->pertag->curtag;
 		strncpy(chvt_backup_selmon, selmon->wlr_output->name,
 				sizeof(chvt_backup_selmon) - 1);
 	}
+
 	wlr_session_change_vt(session, arg->ui);
+
+	// wait for DRM device to stabilize and ensure the session state is inactive
+	ts.tv_sec = 0;
+	ts.tv_nsec = 100000000; // 200ms
+	nanosleep(&ts, NULL);
+
+	// allow frame scheduling,
+	// because session state is now inactive, rendermon will not enter
+	allow_frame_scheduling = true;
 	return 1;
 }
 

src/mango.c

@@ -761,6 +761,7 @@ static void refresh_monitors_workspaces_status(Monitor *m);
 static void init_client_properties(Client *c);
 static float *get_border_color(Client *c);
 static void clear_fullscreen_and_maximized_state(Monitor *m);
+static void request_fresh_all_monitors(void);
 
 #include "data/static_keymap.h"
 #include "dispatch/bind_declare.h"
@@ -845,6 +846,7 @@ static double swipe_dy = 0;
 bool render_border = true;
 
 uint32_t chvt_backup_tag = 0;
+bool allow_frame_scheduling = true;
 char chvt_backup_selmon[32] = {0};
 
 struct dvec2 *baked_points_move;
@@ -4237,7 +4239,7 @@ void rendermon(struct wl_listener *listener, void *data) {
 		return;
 	}
 
-	if (!m->wlr_output->enabled)
+	if (!m->wlr_output->enabled || !allow_frame_scheduling)
 		return;
 
 	frame_allow_tearing = check_tearing_frame_allow(m);
@@ -4258,11 +4260,6 @@ void rendermon(struct wl_listener *listener, void *data) {
 		need_more_frames = layer_draw_fadeout_frame(l) || need_more_frames;
 	}
 
-	// 如果需要更多帧，确保安排下一帧
-	if (need_more_frames) {
-		wlr_output_schedule_frame(m->wlr_output);
-	}
-
 	// 绘制客户端
 	wl_list_for_each(c, &clients, link) {
 		need_more_frames = client_draw_frame(c) || need_more_frames;
@@ -4289,6 +4286,11 @@ void rendermon(struct wl_listener *listener, void *data) {
 		wlr_scene_output_send_frame_done(m->scene_output, &now);
 		wlr_output_state_finish(&pending);
 	}
+
+	// 如果需要更多帧，确保安排下一帧
+	if (need_more_frames && allow_frame_scheduling) {
+		request_fresh_all_monitors();
+	}
 }
 
 void requestdecorationmode(struct wl_listener *listener, void *data) {