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Fix of by one errors when searching from right to left.

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This commit is contained in:
Boris Zentner 2016-05-22 21:53:22 +02:00 committed by Robin Stuart
parent 4561a66067
commit 9553e96f8a
1 changed files with 4 additions and 4 deletions
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8
backend/aztec.c
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@ -220,7 +220,7 @@ static int aztec_text_process(const unsigned char source[], const unsigned int s
}
/* look for adjacent blocks which can use the same table (right to left search) */
for (i = blocks - 1; i > 0; i--) {
for (i = blocks - 1 - 1; i >= 0; i--) {
if (blockmap[0][i] & blockmap[0][i + 1]) {
blockmap[0][i] = (blockmap[0][i] & blockmap[0][i + 1]);
}
@ -247,7 +247,7 @@ static int aztec_text_process(const unsigned char source[], const unsigned int s
do {
if (blockmap[0][i] == blockmap[0][i + 1]) {
blockmap[1][i] += blockmap[1][i + 1];
for (j = i + 1; j < blocks; j++) {
for (j = i + 1; j < blocks - 1; j++) {
blockmap[0][j] = blockmap[0][j + 1];
blockmap[1][j] = blockmap[1][j + 1];
}
@ -255,7 +255,7 @@ static int aztec_text_process(const unsigned char source[], const unsigned int s
} else {
i++;
}
} while (i < blocks);
} while (i < blocks - 1);
}
/* Put the adjusted block data back into typemap */
@ -1665,4 +1665,4 @@ int aztec_runes(struct zint_symbol *symbol, unsigned char source[], int length)
symbol->width = 11;
return 0;
}
}