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Better fix for #68601 for perf

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81e9a993f2
This commit is contained in:
Remi Collet 2014-12-17 10:59:36 +01:00 committed by Stanislav Malyshev
parent afbf725e73
commit bd31cb7563
1 changed files with 6 additions and 6 deletions
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12
ext/gd/libgd/gd_gif_in.c
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@ -400,14 +400,14 @@ GetCode_(gdIOCtx *fd, CODE_STATIC_DATA *scd, int code_size, int flag, int *ZeroD
scd->lastbit = (2+count)*8 ;
}
ret = 0;
for (i = scd->curbit, j = 0; j < code_size; ++i, ++j)
if (i < CSD_BUF_SIZE * 8) {
if ((scd->curbit + code_size - 1) >= (CSD_BUF_SIZE * 8)) {
ret = -1;
} else {
ret = 0;
for (i = scd->curbit, j = 0; j < code_size; ++i, ++j) {
ret |= ((scd->buf[i / 8] & (1 << (i % 8))) != 0) << j;
} else {
ret = -1;
break;
}
}
scd->curbit += code_size;
return ret;