OPJ_UINT32 x0b = bandno & 1;
OPJ_UINT32 y0b = bandno >> 1;
if (tbx0) {
- *tbx0 = (nb == 0) ? tcx0 : opj_uint_ceildiv(tcx0 - (1U <<
- (nb - 1)) * x0b, 1U << nb);
+ *tbx0 = (nb == 0) ? tcx0 :
+ (tcx0 <= (1U << (nb - 1)) * x0b) ? 0 :
+ opj_uint_ceildivpow2(tcx0 - (1U << (nb - 1)) * x0b, nb);
}
if (tby0) {
- *tby0 = (nb == 0) ? tcy0 : opj_uint_ceildiv(tcy0 - (1U <<
- (nb - 1)) * y0b, 1U << nb);
+ *tby0 = (nb == 0) ? tcy0 :
+ (tcy0 <= (1U << (nb - 1)) * y0b) ? 0 :
+ opj_uint_ceildivpow2(tcy0 - (1U << (nb - 1)) * y0b, nb);
}
if (tbx1) {
- *tbx1 = (nb == 0) ? tcx1 : opj_uint_ceildiv(tcx1 - (1U <<
- (nb - 1)) * x0b, 1U << nb);
+ *tbx1 = (nb == 0) ? tcx1 :
+ (tcx1 <= (1U << (nb - 1)) * x0b) ? 0 :
+ opj_uint_ceildivpow2(tcx1 - (1U << (nb - 1)) * x0b, nb);
}
if (tby1) {
- *tby1 = (nb == 0) ? tcy1 : opj_uint_ceildiv(tcy1 - (1U <<
- (nb - 1)) * y0b, 1U << nb);
+ *tby1 = (nb == 0) ? tcy1 :
+ (tcy1 <= (1U << (nb - 1)) * y0b) ? 0 :
+ opj_uint_ceildivpow2(tcy1 - (1U << (nb - 1)) * y0b, nb);
}
}
}
h_mem_size = opj_dwt_max_resolution(tr, numres);
/* overflow check */
- if (h_mem_size > (SIZE_MAX / PARALLEL_COLS_53 / sizeof(OPJ_INT32))) {
+ if (h_mem_size > (SIZE_MAX / sizeof(OPJ_INT32))) {
/* FIXME event manager error callback */
return OPJ_FALSE;
}
- /* We need PARALLEL_COLS_53 times the height of the array, */
- /* since for the vertical pass */
- /* we process PARALLEL_COLS_53 columns at a time */
- h_mem_size *= PARALLEL_COLS_53 * sizeof(OPJ_INT32);
+
+ h_mem_size *= sizeof(OPJ_INT32);
h.mem = (OPJ_INT32*)opj_aligned_32_malloc(h_mem_size);
if (! h.mem) {
/* FIXME event manager error callback */
/* equation B-15 of the standard */
OPJ_UINT32 x0b = bandno & 1;
OPJ_UINT32 y0b = bandno >> 1;
- OPJ_UINT32 tbx0 = (nb == 0) ? tcx0 : opj_uint_ceildiv(tcx0 - (1U <<
- (nb - 1)) * x0b, 1U << nb);
- OPJ_UINT32 tby0 = (nb == 0) ? tcy0 : opj_uint_ceildiv(tcy0 - (1U <<
- (nb - 1)) * y0b, 1U << nb);
- OPJ_UINT32 tbx1 = (nb == 0) ? tcx1 : opj_uint_ceildiv(tcx1 - (1U <<
- (nb - 1)) * x0b, 1U << nb);
- OPJ_UINT32 tby1 = (nb == 0) ? tcy1 : opj_uint_ceildiv(tcy1 - (1U <<
- (nb - 1)) * y0b, 1U << nb);
+ OPJ_UINT32 tbx0 = (nb == 0) ? tcx0 :
+ (tcx0 <= (1U << (nb - 1)) * x0b) ? 0 :
+ opj_uint_ceildivpow2(tcx0 - (1U << (nb - 1)) * x0b, nb);
+ OPJ_UINT32 tby0 = (nb == 0) ? tcy0 :
+ (tcy0 <= (1U << (nb - 1)) * y0b) ? 0 :
+ opj_uint_ceildivpow2(tcy0 - (1U << (nb - 1)) * y0b, nb);
+ OPJ_UINT32 tbx1 = (nb == 0) ? tcx1 :
+ (tcx1 <= (1U << (nb - 1)) * x0b) ? 0 :
+ opj_uint_ceildivpow2(tcx1 - (1U << (nb - 1)) * x0b, nb);
+ OPJ_UINT32 tby1 = (nb == 0) ? tcy1 :
+ (tcy1 <= (1U << (nb - 1)) * y0b) ? 0 :
+ opj_uint_ceildivpow2(tcy1 - (1U << (nb - 1)) * y0b, nb);
OPJ_BOOL intersects;
if (tbx0 < filter_margin) {