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Reduce tile-join overzooming memory usage (#162)

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* 16 bits is enough for tile numbers

* Revert "16 bits is enough for tile numbers"

This reverts commit 71a0c4e1cf.

* Check what child tiles each overzoomed tile will have

and don't queue further overzooming of empty tiles

* Clean up naming; use std::move to avoid copying large arrays
This commit is contained in:
Erica Fischer
2023-11-08 12:51:28 -08:00
committed by GitHub
parent 2c56187530
commit d359461e61
6 changed files with 56 additions and 13 deletions
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geometry.hpp
+4 -2
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@@ -99,9 +99,11 @@ int pnpoly(const drawvec &vert, size_t start, size_t nvert, long long testx, lon
double distance_from_line(long long point_x, long long point_y, long long segA_x, long long segA_y, long long segB_x, long long segB_y);
std::string overzoom(mvt_tile tile, int oz, int ox, int oy, int nz, int nx, int ny,
int detail, int buffer, std::set<std::string> const &keep, bool do_compress);
int detail, int buffer, std::set<std::string> const &keep, bool do_compress,
std::vector<std::pair<unsigned, unsigned>> *next_overzoomed_tiles);
std::string overzoom(std::string s, int oz, int ox, int oy, int nz, int nx, int ny,
int detail, int buffer, std::set<std::string> const &keep, bool do_compress);
int detail, int buffer, std::set<std::string> const &keep, bool do_compress,
std::vector<std::pair<unsigned, unsigned>> *next_overzoomed_tiles);
#endif