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Correct bug in QR Code

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Correct bug in numeric encoding of QR Code data
reported by John Hennessy.
This commit is contained in:
Robin Stuart 2010-10-22 10:44:05 +01:00
parent a686482a44
commit 6792246fe9
1 changed files with 8 additions and 7 deletions
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13
backend/qr.c
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@ -257,7 +257,7 @@ void qr_binary(int datastream[], int version, int target_binlen, char mode[], in
qr_bscan(binary, byte, 0x80); qr_bscan(binary, byte, 0x80);
if(debug) { printf("0x%4X ", byte); } if(debug) { printf("0x%2X(%d) ", byte, byte); }
} }
if(debug) { printf("\n"); } if(debug) { printf("\n"); }
@ -372,12 +372,12 @@ void qr_binary(int datastream[], int version, int target_binlen, char mode[], in
second = posn(NEON, (char) jisdata[position + i + 1]); second = posn(NEON, (char) jisdata[position + i + 1]);
count = 2; count = 2;
prod = (prod * 10) + second; prod = (prod * 10) + second;
}
if(mode[position + i + 2] == 'N') { if(mode[position + i + 2] == 'N') {
third = posn(NEON, (char) jisdata[position + i + 2]); third = posn(NEON, (char) jisdata[position + i + 2]);
count = 3; count = 3;
prod = (prod * 10) + third; prod = (prod * 10) + third;
}
} }
qr_bscan(binary, prod, 1 << (3 * count)); /* count = 1..3 */ qr_bscan(binary, prod, 1 << (3 * count)); /* count = 1..3 */
@ -434,6 +434,7 @@ void qr_binary(int datastream[], int version, int target_binlen, char mode[], in
} }
if(debug) { if(debug) {
printf("Resulting codewords:\n\t");
for(i = 0; i < target_binlen; i++) { for(i = 0; i < target_binlen; i++) {
printf("0x%2X ", datastream[i]); printf("0x%2X ", datastream[i]);
} }