+/**
+ * Magic number that gets stored outside of the struct hash_table.
+ *
+ * The hash table needs a particular pointer to be the marker for a key that
+ * was deleted from the table, along with NULL for the "never allocated in the
+ * table" marker. Legacy GL allows any GLuint to be used as a GL object name,
+ * and we use a 1:1 mapping from GLuints to key pointers, so we need to be
+ * able to track a GLuint that happens to match the deleted key outside of
+ * struct hash_table. We tell the hash table to use "1" as the deleted key
+ * value, so that we test the deleted-key-in-the-table path as best we can.
+ */
+#define DELETED_KEY_VALUE 1
+
+static inline void *
+uint_key(unsigned id)
+{
+ return (void *)(uintptr_t) id;
+}
+