/* Copyright 1996-2014 Han The Thanh, This file is part of pdfTeX. pdfTeX is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. pdfTeX is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . */ #include "ptexlib.h" typedef struct { char *dataptr; integer len; } packet_entry; /* define packet_ptr, packet_array & packet_limit */ define_array(packet); typedef struct { char **data; int *len; int char_count; } vf_entry; /* define vf_ptr, vf_array & vf_limit */ define_array(vf); static char *packet_data_ptr; integer newvfpacket(internalfontnumber f) { int i, n = fontec[f] - fontbc[f] + 1; alloc_array(vf, 1, SMALL_ARRAY_SIZE); vf_ptr->len = xtalloc(n, int); vf_ptr->data = xtalloc(n, char *); vf_ptr->char_count = n; for (i = 0; i < n; i++) { vf_ptr->data[i] = NULL; vf_ptr->len[i] = 0; } return vf_ptr++ - vf_array; } void storepacket(internalfontnumber f, integer c, strnumber s) { int l = strstart[s + 1] - strstart[s]; vf_array[vfpacketbase[f]].len[c - fontbc[f]] = l; vf_array[vfpacketbase[f]].data[c - fontbc[f]] = xtalloc(l, char); memcpy((void *) vf_array[vfpacketbase[f]].data[c - fontbc[f]], (void *) (strpool + strstart[s]), (unsigned) l); } void startpacket(internalfontnumber f, eightbits c) { packet_data_ptr = vf_array[vfpacketbase[f]].data[c - fontbc[f]]; vfpacketlength = vf_array[vfpacketbase[f]].len[c - fontbc[f]]; } eightbits packetbyte(void) { vfpacketlength--; return *packet_data_ptr++; } void pushpacketstate(void) { alloc_array(packet, 1, SMALL_ARRAY_SIZE); packet_ptr->dataptr = packet_data_ptr; packet_ptr->len = vfpacketlength; packet_ptr++; } void poppacketstate(void) { if (packet_ptr == packet_array) pdftex_fail("packet stack empty, impossible to pop"); packet_ptr--; packet_data_ptr = packet_ptr->dataptr; vfpacketlength = packet_ptr->len; } void vf_free(void) { vf_entry *v; char **p; if (vf_array != NULL) { for (v = vf_array; v < vf_ptr; v++) { xfree(v->len); for (p = v->data; p - v->data < v->char_count; p++) xfree(*p); xfree(v->data); } xfree(vf_array); } xfree(packet_array); }