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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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6
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) */ /* 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]) { if (blockmap[0][i] & blockmap[0][i + 1]) {
blockmap[0][i] = (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 { do {
if (blockmap[0][i] == blockmap[0][i + 1]) { if (blockmap[0][i] == blockmap[0][i + 1]) {
blockmap[1][i] += blockmap[1][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[0][j] = blockmap[0][j + 1];
blockmap[1][j] = blockmap[1][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 { } else {
i++; i++;
} }
} while (i < blocks); } while (i < blocks - 1);
} }
/* Put the adjusted block data back into typemap */ /* Put the adjusted block data back into typemap */