screencopy: use output transform for damage copy

types/wlr_screencopy_v1.c

@@ -48,18 +48,18 @@ static void screencopy_damage_accumulate(struct screencopy_damage *damage) {
 		return;
 	}
 
+	int width, height;
+	wlr_output_transformed_resolution(output, &width, &height);
+
 	// If the compositor did not submit damage but did submit a buffer,
 	if (!(output->pending.committed & WLR_OUTPUT_STATE_DAMAGE) &&
 			(output->pending.committed & WLR_OUTPUT_STATE_BUFFER)) {
 		// damage everything
-		int width, height;
-		wlr_output_transformed_resolution(output, &width, &height);
 		pixman_region32_union_rect(region, region, 0, 0, width, height);
 	} else {
 		// otherwise copy over the current damage
 		pixman_region32_union(region, region, &output->pending.damage);
-		pixman_region32_intersect_rect(region, region, 0, 0, output->width,
+		pixman_region32_intersect_rect(region, region, 0, 0, width, height);
-			output->height);
 	}
 
 	damage->last_commit_seq = output->commit_seq;