Move output commit out of output_render()

That way output_render() only does what it says on the tin.

include/sway/output.h

@@ -112,8 +112,7 @@ bool output_has_opaque_overlay_layer_surface(struct sway_output *output);
 
 struct sway_workspace *output_get_active_workspace(struct sway_output *output);
 
-void output_render(struct sway_output *output, struct timespec *when,
+void output_render(struct sway_output *output, pixman_region32_t *damage);
-	pixman_region32_t *damage);
 
 void output_surface_for_each_surface(struct sway_output *output,
 		struct wlr_surface *surface, double ox, double oy,

sway/desktop/output.c

@@ -517,13 +517,34 @@ static bool scan_out_fullscreen_view(struct sway_output *output,
 	return wlr_output_commit(wlr_output);
 }
 
+static void get_frame_damage(struct sway_output *output,
+		pixman_region32_t *frame_damage) {
+	struct wlr_output *wlr_output = output->wlr_output;
+
+	int width, height;
+	wlr_output_transformed_resolution(wlr_output, &width, &height);
+
+	pixman_region32_init(frame_damage);
+
+	enum wl_output_transform transform =
+		wlr_output_transform_invert(wlr_output->transform);
+	wlr_region_transform(frame_damage, &output->damage_ring.current,
+		transform, width, height);
+
+	if (debug.damage != DAMAGE_DEFAULT) {
+		pixman_region32_union_rect(frame_damage, frame_damage,
+			0, 0, wlr_output->width, wlr_output->height);
+	}
+}
+
 static int output_repaint_timer_handler(void *data) {
 	struct sway_output *output = data;
-	if (output->wlr_output == NULL) {
+	struct wlr_output *wlr_output = output->wlr_output;
+	if (wlr_output == NULL) {
 		return 0;
 	}
 
-	output->wlr_output->frame_pending = false;
+	wlr_output->frame_pending = false;
 
 	struct sway_workspace *workspace = output->current.active_workspace;
 	if (workspace == NULL) {
@@ -575,10 +596,22 @@ static int output_repaint_timer_handler(void *data) {
 	struct timespec now;
 	clock_gettime(CLOCK_MONOTONIC, &now);
 
-	output_render(output, &now, &damage);
+	output_render(output, &damage);
 
 	pixman_region32_fini(&damage);
 
+	pixman_region32_t frame_damage;
+	get_frame_damage(output, &frame_damage);
+	wlr_output_set_damage(wlr_output, &frame_damage);
+	pixman_region32_fini(&frame_damage);
+
+	if (!wlr_output_commit(wlr_output)) {
+		return 0;
+	}
+
+	wlr_damage_ring_rotate(&output->damage_ring);
+	output->last_frame = now;
+
 	return 0;
 }
 

sway/desktop/render.c

@@ -1029,8 +1029,7 @@ static void render_seatops(struct sway_output *output,
 	}
 }
 
-void output_render(struct sway_output *output, struct timespec *when,
+void output_render(struct sway_output *output, pixman_region32_t *damage) {
-		pixman_region32_t *damage) {
 	struct wlr_output *wlr_output = output->wlr_output;
 	struct wlr_renderer *renderer = output->server->renderer;
 
@@ -1184,30 +1183,4 @@ renderer_end:
 	wlr_renderer_scissor(renderer, NULL);
 	wlr_output_render_software_cursors(wlr_output, damage);
 	wlr_renderer_end(renderer);
-
-	int width, height;
-	wlr_output_transformed_resolution(wlr_output, &width, &height);
-
-	pixman_region32_t frame_damage;
-	pixman_region32_init(&frame_damage);
-
-	enum wl_output_transform transform =
-		wlr_output_transform_invert(wlr_output->transform);
-	wlr_region_transform(&frame_damage, &output->damage_ring.current,
-		transform, width, height);
-
-	if (debug.damage != DAMAGE_DEFAULT) {
-		pixman_region32_union_rect(&frame_damage, &frame_damage,
-			0, 0, wlr_output->width, wlr_output->height);
-	}
-
-	wlr_output_set_damage(wlr_output, &frame_damage);
-	pixman_region32_fini(&frame_damage);
-
-	if (!wlr_output_commit(wlr_output)) {
-		return;
-	}
-
-	wlr_damage_ring_rotate(&output->damage_ring);
-	output->last_frame = *when;
 }