aboutsummaryrefslogtreecommitdiff
path: root/lpg/libqr/qr/common.h
diff options
context:
space:
mode:
Diffstat (limited to 'lpg/libqr/qr/common.h')
-rw-r--r--lpg/libqr/qr/common.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/lpg/libqr/qr/common.h b/lpg/libqr/qr/common.h
index 9caf3e0..f2bd127 100644
--- a/lpg/libqr/qr/common.h
+++ b/lpg/libqr/qr/common.h
@@ -10,5 +10,16 @@ size_t qr_code_total_capacity(int version);
int qr_code_width(const struct qr_code *);
+/* See table 19 of the spec for the layout of EC data. There are at
+ * most two different block lengths, so the total number of data+ec
+ * blocks is the sum of block_count[]. The total number of 8-bit
+ * words in each kind of block is data_length + ec_length.
+ */
+void qr_get_rs_block_sizes(int version,
+ enum qr_ec_level ec,
+ int block_count[2],
+ int data_length[2],
+ int ec_length[2]);
+
#endif