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| author | Leo Uino <leo@norisys.jp> | 2011-07-15 14:57:03 +0900 |
|---|---|---|
| committer | Leo Uino <leo@norisys.jp> | 2011-07-15 20:22:30 +0900 |
| commit | f7133a8a56650a2e5cefc66b6d9b87809a890b2e (patch) | |
| tree | 3b22f8567ec2f2de13d7c3c030f7f4718099523a /lpg/libqr/constants.h | |
| parent | a5c8627f3152e9604bb65fef2e71015a66c82421 (diff) | |
| download | pdf-simple-sign-f7133a8a56650a2e5cefc66b6d9b87809a890b2e.tar.gz pdf-simple-sign-f7133a8a56650a2e5cefc66b6d9b87809a890b2e.tar.xz pdf-simple-sign-f7133a8a56650a2e5cefc66b6d9b87809a890b2e.zip | |
Remove (a few) magic numbers
Diffstat (limited to 'lpg/libqr/constants.h')
| -rw-r--r-- | lpg/libqr/constants.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/lpg/libqr/constants.h b/lpg/libqr/constants.h index fbfadc8..e6cfa3c 100644 --- a/lpg/libqr/constants.h +++ b/lpg/libqr/constants.h @@ -3,6 +3,22 @@ #include <qr/types.h> +/* XOR mask for format data: 101 0100 0001 0010 */ +#define QR_FORMAT_MASK (0x5412) + +/* Format info EC polynomial + * G(x) = x^10 + x^8 + x^5 + x^4 + x^2 + x + 1 + */ +#define QR_FORMAT_POLY (0x537) + +/* Version info EC polynomial + * G(x) = x^12 + x^11 + x^10 + x^9 + x^8 + x^5 + x^2 + 1 + */ +#define QR_VERSION_POLY (0x1F25) + +/* A QR-code word is always 8 bits, but CHAR_BIT might not be */ +#define QR_WORD_BITS (8) + extern const int QR_ALIGNMENT_LOCATION[40][7]; extern const int QR_DATA_WORD_COUNT[40][4]; /* See qr_get_rs_block_sizes() */ |