backend/backend: add a TODO about image ops ordering

tryone144 · Sep 5, 2020 · 670b4ab · 670b4ab
1 parent c514547
commit 670b4ab
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/src/backend/backend.h b/src/backend/backend.h
@@ -195,6 +195,13 @@ struct backend_operations {
 	int max_buffer_age;
 
 	// ===========    Post-processing   ============
+
+	/* TODO(yshui) Consider preserving the order of image ops.
+	 * Currently in both backends, the image ops are applied lazily when needed.
+	 * However neither backends preserve the order of image ops, they just applied all
+	 * pending lazy ops in a pre-determined fixed order, regardless in which order
+	 * they were originally applied. This might lead to inconsistencies.*/
+
 	/**
 	 * Manipulate an image
 	 *