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-rw-r--r--firmware/font.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/firmware/font.h b/firmware/font.h
index 13d60e560b..8535ab216b 100644
--- a/firmware/font.h
+++ b/firmware/font.h
@@ -70,7 +70,7 @@
/* MWIMAGEBITS helper macros*/
#define MWIMAGE_WORDS(x) (((x)+15)/16) /* image size in words*/
-#define MWIMAGE_BYTES(x) (((x)+7)/8) /* image size in bytes*/
+#define MWIMAGE_BYTES(x) (MWIMAGE_WORDS(x)*sizeof(MWIMAGEBITS))
#define MWIMAGE_BITSPERIMAGE (sizeof(MWIMAGEBITS) * 8)
#define MWIMAGE_BITVALUE(n) ((MWIMAGEBITS) (((MWIMAGEBITS) 1) << (n)))
#define MWIMAGE_FIRSTBIT (MWIMAGE_BITVALUE(MWIMAGE_BITSPERIMAGE - 1))