s0n = s1n - ((d1c + d1n + 2) >> 2);
tmp[i ] = s0c;
- tmp[i + 1] = d1c + ((s0c + s0n) >> 1);
+ tmp[i + 1] = opj_int_add_no_overflow(d1c, opj_int_add_no_overflow(s0c,
+ s0n) >> 1);
}
tmp[i] = s0n;
dn = in_odd[j] - ((s1 + s2 + 2) >> 2);
tmp[i ] = dc;
- tmp[i + 1] = s1 + ((dn + dc) >> 1);
+ tmp[i + 1] = opj_int_add_no_overflow(s1, opj_int_add_no_overflow(dn, dc) >> 1);
dc = dn;
s1 = s2;
s1n = tiledp_col[(OPJ_SIZE_T)(j + 1) * stride];
d1n = tiledp_col[(OPJ_SIZE_T)(sn + j + 1) * stride];
- s0n = s1n - ((d1c + d1n + 2) >> 2);
+ s0n = opj_int_sub_no_overflow(s1n,
+ opj_int_add_no_overflow(opj_int_add_no_overflow(d1c, d1n), 2) >> 2);
tmp[i ] = s0c;
tmp[i + 1] = d1c + ((s0c + s0n) >> 1);
OPJ_S(0) /= 2;
} else {
for (i = win_l_x0; i < win_l_x1; i++) {
- OPJ_D(i) -= (OPJ_SS_(i) + OPJ_SS_(i + 1) + 2) >> 2;
+ OPJ_D(i) = opj_int_sub_no_overflow(OPJ_D(i),
+ opj_int_add_no_overflow(opj_int_add_no_overflow(OPJ_SS_(i), OPJ_SS_(i + 1)),
+ 2) >> 2);
}
for (i = win_h_x0; i < win_h_x1; i++) {
- OPJ_S(i) += (OPJ_DD_(i) + OPJ_DD_(i - 1)) >> 1;
+ OPJ_S(i) = opj_int_add_no_overflow(OPJ_S(i),
+ opj_int_add_no_overflow(OPJ_DD_(i), OPJ_DD_(i - 1)) >> 1);
}
}
}
} else {
for (i = win_l_x0; i < win_l_x1; i++) {
for (off = 0; off < 4; off++) {
- OPJ_D_off(i, off) -= (OPJ_SS__off(i, off) + OPJ_SS__off(i + 1, off) + 2) >> 2;
+ OPJ_D_off(i, off) = opj_int_sub_no_overflow(
+ OPJ_D_off(i, off),
+ opj_int_add_no_overflow(
+ opj_int_add_no_overflow(OPJ_SS__off(i, off), OPJ_SS__off(i + 1, off)), 2) >> 2);
}
}
for (i = win_h_x0; i < win_h_x1; i++) {
for (off = 0; off < 4; off++) {
- OPJ_S_off(i, off) += (OPJ_DD__off(i, off) + OPJ_DD__off(i - 1, off)) >> 1;
+ OPJ_S_off(i, off) = opj_int_add_no_overflow(
+ OPJ_S_off(i, off),
+ opj_int_add_no_overflow(OPJ_DD__off(i, off), OPJ_DD__off(i - 1, off)) >> 1);
}
}
}