mirrors/zint
2
0
Fork 0
mirror of https://github.com/zint/zint synced 2024-11-16 20:57:25 +13:00
Code Issues Actions Packages Projects Releases Wiki Activity

Correct bug in QR Code

Browse Source 
Correction of version number bug.
Version information was encoded backwards in QR Code symbols > version 7.
Thanks to Chew Boon Heng and Giovanni Pedruzzi for reporting,
and thanks to Sean Owen from the ZXing group for working out the problem.
This commit is contained in:
Robin Stuart 2010-12-16 09:54:56 +00:00
parent d0f15ef423
commit 08a24d9f94
1 changed files with 6 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
backend/qr.c
View File

@ -984,12 +984,12 @@ void add_version_info(unsigned char *grid, int size, int version)
long int version_data = qr_annex_d[version - 7]; long int version_data = qr_annex_d[version - 7];
for(i = 0; i < 6; i++) { for(i = 0; i < 6; i++) {
grid[((size - 11) * size) + i] += (version_data >> (17 - (i * 3))) & 0x01; grid[((size - 11) * size) + i] += (version_data >> (i * 3)) & 0x01;
grid[((size - 10) * size) + i] += (version_data >> (16 - (i * 3))) & 0x01; grid[((size - 10) * size) + i] += (version_data >> ((i * 3) + 1)) & 0x01;
grid[((size - 9) * size) + i] += (version_data >> (15 - (i * 3))) & 0x01; grid[((size - 9) * size) + i] += (version_data >> ((i * 3) + 2)) & 0x01;
grid[(i * size) + (size - 11)] += (version_data >> (17 - (i * 3))) & 0x01; grid[(i * size) + (size - 11)] += (version_data >> (i * 3)) & 0x01;
grid[(i * size) + (size - 10)] += (version_data >> (16 - (i * 3))) & 0x01; grid[(i * size) + (size - 10)] += (version_data >> ((i * 3) + 1)) & 0x01;
grid[(i * size) + (size - 9)] += (version_data >> (15 - (i * 3))) & 0x01; grid[(i * size) + (size - 9)] += (version_data >> ((i * 3) + 2)) & 0x01;
} }
} }