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/**
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* Navit, a modular navigation system.
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* Copyright (C) 2005-2011 Navit Team
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include <string.h>
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#include <stdlib.h>
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#include <math.h>
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#include <unistd.h>
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#include <time.h>
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#include <zlib.h>
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#include "maptool.h"
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#include "debug.h"
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#include "linguistics.h"
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#include "file.h"
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#include "generated-code/fileformat.pb-c.h"
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#include "generated-code/osmformat.pb-c.h"
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static double latlon_scale=10000000.0;
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static OSMPBF__BlobHeader *
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read_header(FILE *f)
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{
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unsigned char *buffer,lenb[4];
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int len;
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len=sizeof(lenb);
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if (fread(lenb, 4, 1, f) != 1)
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return NULL;
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len=(lenb[0] << 24) | (lenb[1] << 16) | (lenb[2] << 8) | lenb[3];
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buffer=alloca(len);
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if (fread(buffer, len, 1, f) != 1)
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return NULL;
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return osmpbf__blob_header__unpack(&protobuf_c_system_allocator, len, buffer);
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}
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static OSMPBF__Blob *
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read_blob(OSMPBF__BlobHeader *header, FILE *f)
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{
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unsigned char *buffer;
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int len=header->datasize;
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buffer=alloca(len);
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if (fread(buffer, len, 1, f) != 1)
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return NULL;
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return osmpbf__blob__unpack(&protobuf_c_system_allocator, len, buffer);
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}
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static unsigned char *
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uncompress_blob(OSMPBF__Blob *blob)
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{
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unsigned char *ret=malloc(blob->raw_size);
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int zerr;
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z_stream strm;
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if (!ret)
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return NULL;
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strm.zalloc = Z_NULL;
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strm.zfree = Z_NULL;
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strm.opaque = Z_NULL;
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strm.avail_in=blob->zlib_data.len;
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strm.next_in=blob->zlib_data.data;
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strm.avail_out=blob->raw_size;
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strm.next_out=ret;
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zerr = inflateInit(&strm);
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if (zerr != Z_OK) {
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free(ret);
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return NULL;
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}
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zerr = inflate(&strm, Z_NO_FLUSH);
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if (zerr != Z_STREAM_END) {
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free(ret);
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return NULL;
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}
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inflateEnd(&strm);
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return ret;
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}
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static int
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get_string(char *buffer, int buffer_size, OSMPBF__PrimitiveBlock *primitive_block, int id, int escape)
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{
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int len=primitive_block->stringtable->s[id].len;
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char *data=(char *)primitive_block->stringtable->s[id].data;
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if (primitive_block->stringtable->s[id].len >= buffer_size) {
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buffer[0]='\0';
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return 0;
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}
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if (escape) {
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int i;
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char *p=buffer;
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for (i = 0 ; i < len ; i++) {
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switch(data[i]) {
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case '\t':
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case '\r':
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case '\n':
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case '>':
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case '<':
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case '\'':
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case '"':
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case '&':
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sprintf(p,"&#%d;",data[i]);
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p+=strlen(p);
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break;
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default:
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*p++=data[i];
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}
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}
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*p++='\0';
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return 1;
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} else {
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strncpy(buffer, data, len);
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buffer[len]='\0';
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return 1;
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}
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}
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static void
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process_osmheader(OSMPBF__Blob *blob, unsigned char *data)
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{
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OSMPBF__HeaderBlock *header_block;
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header_block=osmpbf__header_block__unpack(&protobuf_c_system_allocator, blob->raw_size, data);
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osmpbf__header_block__free_unpacked(header_block, &protobuf_c_system_allocator);
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}
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#if 0
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static void
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process_user(OSMPBF__PrimitiveBlock *primitive_block, int user_sid, int uid, int swap)
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{
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char userbuff[1024];
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get_string(userbuff, sizeof(userbuff), primitive_block, user_sid, 1);
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if (userbuff[0] && uid != -1) {
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if (swap)
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printf(" uid=\"%d\" user=\"%s\"",uid,userbuff);
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else
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printf(" user=\"%s\" uid=\"%d\"",userbuff,uid);
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}
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}
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static void
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process_timestamp(long long timestamp)
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{
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time_t ts;
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struct tm *tm;
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char tsbuff[1024];
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ts=timestamp;
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tm=gmtime(&ts);
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strftime(tsbuff, sizeof(tsbuff), "%Y-%m-%dT%H:%M:%SZ", tm);
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printf(" timestamp=\"%s\"",tsbuff);
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}
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#endif
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static void
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process_tag(OSMPBF__PrimitiveBlock *primitive_block, int key, int val)
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{
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char keybuff[1024];
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char valbuff[1024];
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#if 0
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get_string(keybuff, sizeof(keybuff), primitive_block, key, 1);
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get_string(valbuff, sizeof(valbuff), primitive_block, val, 1);
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printf("\t\t<tag k=\"%s\" v=\"%s\" />\n",keybuff,valbuff);
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#else
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get_string(keybuff, sizeof(keybuff), primitive_block, key, 0);
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get_string(valbuff, sizeof(valbuff), primitive_block, val, 0);
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osm_add_tag(keybuff, valbuff);
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#endif
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}
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static void
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process_dense(OSMPBF__PrimitiveBlock *primitive_block, OSMPBF__DenseNodes *dense, FILE *out_nodes)
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{
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int i,j=0,has_tags;
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long long id=0,lat=0,lon=0,changeset=0,timestamp=0;
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int version,user_sid=0,uid=0;
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if (!dense)
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return;
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for (i = 0 ; i < dense->n_id ; i++) {
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id+=dense->id[i];
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lat+=dense->lat[i];
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lon+=dense->lon[i];
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version=dense->denseinfo->version[i];
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changeset+=dense->denseinfo->changeset[i];
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user_sid+=dense->denseinfo->user_sid[i];
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uid+=dense->denseinfo->uid[i];
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timestamp+=dense->denseinfo->timestamp[i];
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has_tags=dense->keys_vals && dense->keys_vals[j];
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osm_add_node(id, lat/latlon_scale,lon/latlon_scale);
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#if 0
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printf("\t<node id=\"%Ld\" lat=\"%.7f\" lon=\"%.7f\" version=\"%d\" changeset=\"%Ld\"",id,lat/latlon_scale,lon/latlon_scale,version,changeset);
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process_user(primitive_block, user_sid, uid, 0);
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process_timestamp(timestamp);
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#endif
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if (has_tags) {
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#if 0
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printf(">\n");
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#endif
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while (dense->keys_vals[j]) {
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process_tag(primitive_block, dense->keys_vals[j], dense->keys_vals[j+1]);
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j+=2;
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}
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#if 0
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printf("\t</node>\n");
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} else
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printf("/>\n");
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#else
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}
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#endif
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osm_end_node(out_nodes);
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j++;
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}
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}
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#if 0
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static void
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process_info(OSMPBF__PrimitiveBlock *primitive_block, OSMPBF__Info *info)
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{
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printf(" version=\"%d\" changeset=\"%Ld\"",info->version,info->changeset);
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process_user(primitive_block, info->user_sid, info->uid, 1);
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process_timestamp(info->timestamp);
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}
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#endif
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static void
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process_way(OSMPBF__PrimitiveBlock *primitive_block, OSMPBF__Way *way, FILE *out_ways)
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{
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int i;
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long long ref=0;
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osm_add_way(way->id);
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#if 0
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printf("\t<way id=\"%Ld\"",way->id);
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process_info(primitive_block, way->info);
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printf(">\n");
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#else
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#endif
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for (i = 0 ; i < way->n_refs ; i++) {
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ref+=way->refs[i];
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osm_add_nd(ref);
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#if 0
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printf("\t\t<nd ref=\"%Ld\"/>\n",ref);
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#else
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#endif
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}
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for (i = 0 ; i < way->n_keys ; i++)
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process_tag(primitive_block, way->keys[i], way->vals[i]);
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#if 0
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printf("\t</way>\n");
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#endif
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osm_end_way(out_ways);
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}
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static void
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process_relation(OSMPBF__PrimitiveBlock *primitive_block, OSMPBF__Relation *relation, FILE *out_turn_restrictions, FILE *out_boundaries)
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{
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int i;
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long long ref=0;
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char rolebuff[1024];
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#if 0
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printf("\t<relation id=\"%Ld\"",relation->id);
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process_info(primitive_block, relation->info);
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printf(">\n");
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#endif
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osm_add_relation(relation->id);
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for (i = 0 ; i < relation->n_roles_sid ; i++) {
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#if 0
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printf("\t\t<member type=\"");
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switch (relation->types[i]) {
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case 0:
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printf("node");
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break;
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case 1:
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printf("way");
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break;
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case 2:
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printf("relation");
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break;
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default:
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printf("unknown");
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break;
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}
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#endif
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ref+=relation->memids[i];
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get_string(rolebuff, sizeof(rolebuff), primitive_block, relation->roles_sid[i], 1);
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#if 0
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printf("\" ref=\"%Ld\" role=\"%s\"/>\n",ref,rolebuff);
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#else
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osm_add_member(relation->types[i]+1,ref,rolebuff);
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#endif
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}
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for (i = 0 ; i < relation->n_keys ; i++)
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process_tag(primitive_block, relation->keys[i], relation->vals[i]);
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#if 0
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printf("\t</relation>\n");
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#else
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osm_end_relation(out_turn_restrictions, out_boundaries);
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#endif
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}
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static void
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process_osmdata(OSMPBF__Blob *blob, unsigned char *data, FILE *out_nodes, FILE *out_ways, FILE *out_turn_restrictions, FILE *out_boundaries)
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{
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int i,j;
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OSMPBF__PrimitiveBlock *primitive_block;
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primitive_block=osmpbf__primitive_block__unpack(&protobuf_c_system_allocator, blob->raw_size, data);
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for (i = 0 ; i < primitive_block->n_primitivegroup ; i++) {
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OSMPBF__PrimitiveGroup *primitive_group=primitive_block->primitivegroup[i];
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process_dense(primitive_block, primitive_group->dense, out_nodes);
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for (j = 0 ; j < primitive_group->n_ways ; j++)
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process_way(primitive_block, primitive_group->ways[j], out_ways);
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for (j = 0 ; j < primitive_group->n_relations ; j++)
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process_relation(primitive_block, primitive_group->relations[j], out_turn_restrictions, out_boundaries);
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#if 0
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printf("Group %p %d %d %d %d\n",primitive_group->dense,primitive_group->n_nodes,primitive_group->n_ways,primitive_group->n_relations,primitive_group->n_changesets);
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#endif
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}
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osmpbf__primitive_block__free_unpacked(primitive_block, &protobuf_c_system_allocator);
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}
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int
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map_collect_data_osm_protobuf(FILE *in, FILE *out_ways, FILE *out_nodes, FILE *out_turn_restrictions, FILE *out_boundaries)
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{
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OSMPBF__BlobHeader *header;
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OSMPBF__Blob *blob;
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unsigned char *data;
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#if 0
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printf("<?xml version='1.0' encoding='UTF-8'?>\n");
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printf("<osm version=\"0.6\" generator=\"pbf2osm\">\n");
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#endif
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while ((header=read_header(in))) {
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blob=read_blob(header, in);
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data=uncompress_blob(blob);
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if (!strcmp(header->type,"OSMHeader")) {
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process_osmheader(blob, data);
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} else if (!strcmp(header->type,"OSMData")) {
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process_osmdata(blob, data, out_nodes, out_ways, out_turn_restrictions, out_boundaries);
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} else {
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printf("unknown\n");
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return 0;
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}
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362 |
free(data);
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363 |
osmpbf__blob__free_unpacked(blob, &protobuf_c_system_allocator);
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osmpbf__blob_header__free_unpacked(header, &protobuf_c_system_allocator);
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}
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#if 0
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printf("</osm>\n");
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#endif
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return 1;
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}
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