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Allocate more memory for percentages in Alphanumeric mode in QR Code

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Fixes #104 reported by Daniel Gredler <sdanig@users.sourceforge.net>
This commit is contained in:
Robin Stuart 2018-06-20 03:38:50 +01:00
parent 91d933adb7
commit 04b08eb39c
1 changed files with 13 additions and 3 deletions
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16
backend/qr.c
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@ -1319,6 +1319,8 @@ static int getBinaryLength(const int version,char inputMode[],const int inputDat
char currentMode; char currentMode;
int j; int j;
int count = 0; int count = 0;
int alphalength;
int percent = 0;
applyOptimisation(version, inputMode, inputLength); applyOptimisation(version, inputMode, inputLength);
@ -1352,12 +1354,20 @@ static int getBinaryLength(const int version,char inputMode[],const int inputDat
break; break;
case 'A': case 'A':
count += tribus(version, 9, 11, 13); count += tribus(version, 9, 11, 13);
switch (blockLength(i, inputMode, inputLength) % 2) { alphalength = blockLength(i, inputMode, inputLength);
// In alphanumeric mode % becomes %%
for (j = i; j < (i + alphalength); j++) {
if (inputData[j] == '%') {
percent++;
}
}
alphalength += percent;
switch (alphalength % 2) {
case 0: case 0:
count += (blockLength(i, inputMode, inputLength) / 2) * 11; count += (alphalength / 2) * 11;
break; break;
case 1: case 1:
count += ((blockLength(i, inputMode, inputLength) - 1) / 2) * 11; count += ((alphalength - 1) / 2) * 11;
count += 6; count += 6;
break; break;
} }