pan/bi: Add helper to extract a word from an index

This pattern comes up surprisingly often due to the prevalance of vectors. Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8215>
2020-12-14 16:19:15 -05:00
parent 3a63b5d7cf
commit 903a818f33
1 changed files with 8 additions and 0 deletions
@@ -471,6 +471,14 @@ bi_passthrough(enum bifrost_packed_src value)
        };
 }

+/* Extracts a word from a vectored index */
+static inline bi_index
+bi_word(bi_index idx, unsigned component)
+{
+        idx.offset += component;
+        return idx;
+}
+
 static inline bool
 bi_is_null(bi_index idx)
 {