From ef01767c732629b7eff7d1601e76a1bac58f5bfd Mon Sep 17 00:00:00 2001 From: Leo Howell Date: Sat, 5 Sep 2009 09:33:22 +0900 Subject: The story so far --- lpg/libqr/code-common.c | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 lpg/libqr/code-common.c (limited to 'lpg/libqr/code-common.c') diff --git a/lpg/libqr/code-common.c b/lpg/libqr/code-common.c new file mode 100644 index 0000000..08b16df --- /dev/null +++ b/lpg/libqr/code-common.c @@ -0,0 +1,36 @@ +#include +#include + +#include "code-common.h" + +void qr_code_destroy(struct qr_code * code) +{ + free(code->modules); + free(code); +} + +int qr_code_width(const struct qr_code * code) +{ + return code_side_length(code->format); +} + +int code_side_length(int format) +{ + return format * 4 + 17; +} + +int code_finder_count(int format) +{ + int x = format / 7; + return format > 1 ? x*x + 4*x + 1 : 0; +} + +size_t code_total_capacity(int format) +{ + /* XXX: figure out the "correct" formula */ + return 160 + + 25 * code_finder_count(format) + - 10 * (format / 7) + + 2 * code_side_length(format); +} + -- cgit v1.2.3-70-g09d2