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Use the same serialization in both places, and add sanity checks

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This commit is contained in:
Eric Fischer 2016-08-08 17:08:36 -07:00
parent bf571571a9
commit 8b339abd40
3 changed files with 43 additions and 44 deletions
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5
geometry.cpp
View File

@ -31,7 +31,10 @@ drawvec decode_geometry(FILE *meta, long long *geompos, int z, unsigned tx, unsi
while (1) {
draw d;
deserialize_byte_io(meta, &d.op, geompos);
if (!deserialize_byte_io(meta, &d.op, geompos)) {
fprintf(stderr, "Internal error: Unexpected end of file in geometry\n");
exit(EXIT_FAILURE);
}
if (d.op == VT_END) {
break;
}

12
serial.cpp
View File

@ -158,14 +158,14 @@ int deserialize_byte_io(FILE *f, signed char *n, long long *geompos) {
static void write_geometry(drawvec const &dv, long long *fpos, FILE *out, const char *fname, long long wx, long long wy) {
for (size_t i = 0; i < dv.size(); i++) {
if (dv[i].op == VT_CLOSEPATH) {
serialize_byte(out, dv[i].op, fpos, fname);
} else {
if (dv[i].op == VT_MOVETO || dv[i].op == VT_LINETO) {
serialize_byte(out, dv[i].op, fpos, fname);
serialize_long_long(out, dv[i].x - wx, fpos, fname);
serialize_long_long(out, dv[i].y - wy, fpos, fname);
wx = dv[i].x;
wy = dv[i].y;
} else {
serialize_byte(out, dv[i].op, fpos, fname);
}
}
}
@ -192,6 +192,12 @@ void serialize_feature(FILE *geomfile, serial_feature *sf, long long *geompos, c
serialize_int(geomfile, sf->m, geompos, fname);
serialize_long_long(geomfile, sf->metapos, geompos, fname);
if (sf->metapos < 0 && sf->m != sf->keys.size()) {
fprintf(stderr, "Internal error: %d doesn't match %lld\n", sf->m, (long long) sf->keys.size());
exit(EXIT_FAILURE);
}
for (size_t i = 0; i < sf->keys.size(); i++) {
serialize_long_long(geomfile, sf->keys[i], geompos, fname);
serialize_long_long(geomfile, sf->values[i], geompos, fname);

70
tile.cpp
View File

@ -293,6 +293,18 @@ void rewrite(drawvec &geom, int z, int nextzoom, int maxzoom, long long *bbox, u
bbox2[k] /= 256;
}
// Offset from tile coordinates back to world coordinates
unsigned sx = 0, sy = 0;
if (z != 0) {
sx = tx << (32 - z);
sy = ty << (32 - z);
}
drawvec geom2;
for (size_t i = 0; i < geom.size(); i++) {
geom2.push_back(draw(geom[i].op, (geom[i].x + sx) >> geometry_scale, (geom[i].y + sy) >> geometry_scale));
}
for (xo = bbox2[0]; xo <= bbox2[2]; xo++) {
for (yo = bbox2[1]; yo <= bbox2[3]; yo++) {
unsigned jx = tx * span + xo;
@ -326,52 +338,30 @@ void rewrite(drawvec &geom, int z, int nextzoom, int maxzoom, long long *bbox, u
within[j] = 1;
}
// Offset from tile coordinates back to world coordinates
unsigned sx = 0, sy = 0;
if (z != 0) {
sx = tx << (32 - z);
sy = ty << (32 - z);
}
serial_feature sf;
sf.layer = layer;
sf.segment = segment;
sf.seq = seq;
sf.t = t;
sf.has_id = has_id;
sf.id = id;
sf.has_tippecanoe_minzoom = tippecanoe_minzoom != -1;
sf.tippecanoe_minzoom = tippecanoe_minzoom;
sf.has_tippecanoe_maxzoom = tippecanoe_maxzoom != -1;
sf.tippecanoe_maxzoom = tippecanoe_maxzoom;
sf.metapos = metastart;
sf.geometry = geom2;
sf.m = m;
sf.feature_minzoom = feature_minzoom;
// printf("type %d, meta %lld\n", t, metastart);
serialize_byte(geomfile[j], t, &geompos[j], fname);
serialize_long_long(geomfile[j], seq, &geompos[j], fname);
serialize_long_long(geomfile[j], (layer << 3) | (has_id << 2) | ((tippecanoe_minzoom != -1) << 1) | (tippecanoe_maxzoom != -1), &geompos[j], fname);
if (tippecanoe_minzoom != -1) {
serialize_int(geomfile[j], tippecanoe_minzoom, geompos, fname);
}
if (tippecanoe_maxzoom != -1) {
serialize_int(geomfile[j], tippecanoe_maxzoom, geompos, fname);
}
if (has_id) {
serialize_ulong_long(geomfile[j], id, geompos, fname);
}
serialize_int(geomfile[j], segment, &geompos[j], fname);
long long wx = initial_x[segment], wy = initial_y[segment];
for (size_t u = 0; u < geom.size(); u++) {
serialize_byte(geomfile[j], geom[u].op, &geompos[j], fname);
if (geom[u].op != VT_CLOSEPATH) {
serialize_long_long(geomfile[j], ((geom[u].x + sx) >> geometry_scale) - (wx >> geometry_scale), &geompos[j], fname);
serialize_long_long(geomfile[j], ((geom[u].y + sy) >> geometry_scale) - (wy >> geometry_scale), &geompos[j], fname);
wx = geom[u].x + sx;
wy = geom[u].y + sy;
}
}
serialize_byte(geomfile[j], VT_END, &geompos[j], fname);
serialize_int(geomfile[j], m, &geompos[j], fname);
serialize_long_long(geomfile[j], metastart, &geompos[j], fname);
if (metastart < 0) {
for (int i = 0; i < m; i++) {
serialize_long_long(geomfile[j], metakeys[i], &geompos[j], fname);
serialize_long_long(geomfile[j], metavals[i], &geompos[j], fname);
sf.keys.push_back(metakeys[i]);
sf.values.push_back(metavals[i]);
}
}
serialize_byte(geomfile[j], feature_minzoom, &geompos[j], fname);
serialize_feature(geomfile[j], &sf, &geompos[j], fname, initial_x[segment] >> geometry_scale, initial_y[segment] >> geometry_scale);
}
}
}