sway

commit 36f627d0fadf1d00e45662359246dad9a40c7a7f
parent a7b9f6fedc8e625b9c950f43cad36cfc8fc6734c
Author: Simon Ser <contact@emersion.fr>
Date:   Fri, 20 Jan 2023 23:11:22 +0100

Check return value of wlr_renderer_begin()

Since [1], wlr_renderer_begin() can fail. Check its return value
and bail.

This fixes an assertion error (when begin() fails and then we try
to render something) after a GPU reset.

[1]: https://gitlab.freedesktop.org/wlroots/wlroots/-/commit/a541c9510a4cf544313bc9b0503d75820b42444e

Diffstat:
M
sway/desktop/render.c
 | 
4
+++-

1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/sway/desktop/render.c b/sway/desktop/render.c
@@ -1044,7 +1044,9 @@ void output_render(struct sway_output *output, struct timespec *when,
 		fullscreen_con = workspace->current.fullscreen;
 	}
 
-	wlr_renderer_begin(renderer, wlr_output->width, wlr_output->height);
+	if (!wlr_renderer_begin(renderer, wlr_output->width, wlr_output->height)) {
+		return;
+	}
 
 	if (debug.damage == DAMAGE_RERENDER) {
 		int width, height;