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Less accurate but much faster estimate of size savings from excluding metadata

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This commit is contained in:
Eric Fischer 2014-10-09 14:02:20 -07:00
parent 65ec829de6
commit dea4335162
1 changed files with 8 additions and 5 deletions
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13
tile.cc
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@ -700,7 +700,7 @@ int coalindexcmp(const struct coalesce *c1, const struct coalesce *c2) {
return cmp;
}
void decode_meta(char **meta, struct pool *keys, struct pool *values, struct pool *file_keys, std::vector<int> *intmeta, char *skip) {
void decode_meta(char **meta, struct pool *keys, struct pool *values, struct pool *file_keys, std::vector<int> *intmeta, char *only) {
int m;
deserialize_int(meta, &m);
@ -710,7 +710,7 @@ void decode_meta(char **meta, struct pool *keys, struct pool *values, struct poo
deserialize_int(meta, &t);
struct pool_val *key = deserialize_string(meta, keys, VT_STRING);
if (skip != NULL && (strcmp(key->s, skip) == 0)) {
if (only != NULL && (strcmp(key->s, only) != 0)) {
deserialize_int(meta, &t);
*meta += t;
} else {
@ -814,7 +814,8 @@ void evaluate(std::vector<coalesce> &features, char *metabase, struct pool *file
decode_meta(&meta, &keys, &values, file_keys, &features[i].meta, pv->s);
}
mapnik::vector::tile tile = create_tile(layername, line_detail, features, &count, &keys, &values);
std::vector<coalesce> empty;
mapnik::vector::tile tile = create_tile(layername, line_detail, empty, &count, &keys, &values);
std::string s;
std::string compressed;
@ -829,8 +830,10 @@ void evaluate(std::vector<coalesce> &features, char *metabase, struct pool *file
}
std::sort(options.begin(), options.end());
for (unsigned i = 0; i < options.size() && i < 10; i++) {
fprintf(stderr, "with -x %s, size would be %lld, for a savings of %lld\n", options[i].name, options[i].val, orig - options[i].val);
for (unsigned i = 0; i < options.size(); i++) {
if (options[i].val > 1024) {
fprintf(stderr, "using -x %s would save about %lld, for a tile size of of %lld\n", options[i].name, options[i].val, orig - options[i].val);
}
}
}