mirror of
https://github.com/mapbox/tippecanoe.git
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138 lines
4.2 KiB
C++
138 lines
4.2 KiB
C++
#ifndef SERIAL_HPP
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#define SERIAL_HPP
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#include <stddef.h>
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#include <stdio.h>
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#include <vector>
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#include <atomic>
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#include <sys/stat.h>
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#include "geometry.hpp"
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#include "mbtiles.hpp"
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#include "jsonpull/jsonpull.h"
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size_t fwrite_check(const void *ptr, size_t size, size_t nitems, FILE *stream, const char *fname);
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void serialize_int(FILE *out, int n, long long *fpos, const char *fname);
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void serialize_long_long(FILE *out, long long n, long long *fpos, const char *fname);
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void serialize_ulong_long(FILE *out, unsigned long long n, long long *fpos, const char *fname);
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void serialize_byte(FILE *out, signed char n, long long *fpos, const char *fname);
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void serialize_uint(FILE *out, unsigned n, long long *fpos, const char *fname);
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void serialize_string(FILE *out, const char *s, long long *fpos, const char *fname);
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void deserialize_int(char **f, int *n);
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void deserialize_long_long(char **f, long long *n);
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void deserialize_ulong_long(char **f, unsigned long long *n);
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void deserialize_uint(char **f, unsigned *n);
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void deserialize_byte(char **f, signed char *n);
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int deserialize_int_io(FILE *f, int *n, long long *geompos);
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int deserialize_long_long_io(FILE *f, long long *n, long long *geompos);
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int deserialize_ulong_long_io(FILE *f, unsigned long long *n, long long *geompos);
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int deserialize_uint_io(FILE *f, unsigned *n, long long *geompos);
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int deserialize_byte_io(FILE *f, signed char *n, long long *geompos);
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struct serial_val {
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int type = 0;
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std::string s = "";
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};
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struct serial_feature {
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long long layer = 0;
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int segment = 0;
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long long seq = 0;
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signed char t = 0;
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signed char feature_minzoom = 0;
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bool has_id = false;
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unsigned long long id = 0;
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bool has_tippecanoe_minzoom = false;
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int tippecanoe_minzoom = 0;
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bool has_tippecanoe_maxzoom = false;
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int tippecanoe_maxzoom = 0;
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drawvec geometry = drawvec();
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unsigned long long index = 0;
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long long extent = 0;
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size_t m = 0;
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std::vector<long long> keys{};
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std::vector<long long> values{};
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long long metapos = 0;
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// XXX This isn't serialized. Should it be here?
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long long bbox[4] = {0, 0, 0, 0};
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std::vector<std::string> full_keys{};
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std::vector<serial_val> full_values{};
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std::string layername = "";
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bool dropped = false;
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};
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void serialize_feature(FILE *geomfile, serial_feature *sf, long long *geompos, const char *fname, long long wx, long long wy, bool include_minzoom);
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serial_feature deserialize_feature(FILE *geoms, long long *geompos_in, char *metabase, long long *meta_off, unsigned z, unsigned tx, unsigned ty, unsigned *initial_x, unsigned *initial_y);
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struct reader {
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int metafd = -1;
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int poolfd = -1;
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int treefd = -1;
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int geomfd = -1;
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int indexfd = -1;
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FILE *metafile = NULL;
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struct memfile *poolfile = NULL;
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struct memfile *treefile = NULL;
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FILE *geomfile = NULL;
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FILE *indexfile = NULL;
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long long metapos = 0;
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long long geompos = 0;
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long long indexpos = 0;
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long long file_bbox[4] = {0, 0, 0, 0};
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struct stat geomst {};
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struct stat metast {};
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char *geom_map = NULL;
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};
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struct serialization_state {
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const char *fname = NULL; // source file name
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int line = 0; // user-oriented location within source for error reports
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std::atomic<long long> *layer_seq = NULL; // sequence within current layer
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std::atomic<long long> *progress_seq = NULL; // overall sequence for progress indicator
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std::vector<struct reader> *readers = NULL; // array of data for each input thread
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int segment = 0; // the current input thread
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unsigned *initial_x = NULL; // relative offset of all geometries
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unsigned *initial_y = NULL;
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int *initialized = NULL;
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double *dist_sum = NULL; // running tally for calculation of resolution within features
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size_t *dist_count = NULL;
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bool want_dist = false;
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int maxzoom = 0;
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int basezoom = 0;
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bool filters = false;
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bool uses_gamma = false;
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std::map<std::string, layermap_entry> *layermap = NULL;
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std::map<std::string, int> const *attribute_types = NULL;
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std::set<std::string> *exclude = NULL;
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std::set<std::string> *include = NULL;
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int exclude_all = 0;
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json_object *filter = NULL;
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};
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int serialize_feature(struct serialization_state *sst, serial_feature &sf);
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void coerce_value(std::string const &key, int &vt, std::string &val, std::map<std::string, int> const *attribute_types);
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#endif
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