lib/zlib/deflate.c

935     deflate_state *ds;
948     ds = (deflate_state *) ZALLOC(dest, 1, sizeof(deflate_state));
949     if (ds == Z_NULL) return Z_MEM_ERROR;
950     dest->state = (struct internal_state FAR *) ds;
951     zmemcpy(ds, ss, sizeof(deflate_state));
952     ds->strm = dest;
954     ds->window = (Bytef *) ZALLOC(dest, ds->w_size, 2*sizeof(Byte));
955     ds->prev   = (Posf *)  ZALLOC(dest, ds->w_size, sizeof(Pos));
956     ds->head   = (Posf *)  ZALLOC(dest, ds->hash_size, sizeof(Pos));
957     overlay = (ushf *) ZALLOC(dest, ds->lit_bufsize, sizeof(ush)+2);
958     ds->pending_buf = (uchf *) overlay;
960     if (ds->window == Z_NULL || ds->prev == Z_NULL || ds->head == Z_NULL ||
961         ds->pending_buf == Z_NULL) {
966     zmemcpy(ds->window, ss->window, ds->w_size * 2 * sizeof(Byte));
967     zmemcpy(ds->prev, ss->prev, ds->w_size * sizeof(Pos));
968     zmemcpy(ds->head, ss->head, ds->hash_size * sizeof(Pos));
969     zmemcpy(ds->pending_buf, ss->pending_buf, (uInt)ds->pending_buf_size);
971     ds->pending_out = ds->pending_buf + (ss->pending_out - ss->pending_buf);
972     ds->d_buf = overlay + ds->lit_bufsize/sizeof(ush);
973     ds->l_buf = ds->pending_buf + (1+sizeof(ush))*ds->lit_bufsize;
975     ds->l_desc.dyn_tree = ds->dyn_ltree;
976     ds->d_desc.dyn_tree = ds->dyn_dtree;
977     ds->bl_desc.dyn_tree = ds->bl_tree;