makes rustg_noise_poisson_map around 8x faster#240
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ZeWaka merged 1 commit intotgstation:masterfrom Nov 6, 2025
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* fixes the clippy lints on nightly (tgstation#215) * Adds a new time function, `formatted_timestamp` (tgstation#214) * dmi_create_png is rgba instead of rgb (tgstation#217) * add useragent to byond installer * crate internal updates (tgstation#218) * v3.9.0 (tgstation#219) * Enable pathfinder by default (tgstation#220) * Fix clippy URL lifetime lint (tgstation#223) * Improve DM test functionality on Windows, fix regressions (tgstation#221) * Adds `roll_dice`, an advanced xdy dice roller. (tgstation#216) Co-authored-by: Kapu1178 <75460809+Kapu1178@users.noreply.github.com> * v3.11.0 (tgstation#224) * Fix TOML dme test failing (tgstation#227) * hash: optimize file hashing (tgstation#228) * IconForge: DMI Generation, Code Reorganization, Improved Caching, Cleaner I/O (tgstation#213) * Adds a new `uuid` module (tgstation#229) * IconForge: BYOND Parity + Tests, Optimizations, New Transforms (tgstation#230) * `clippy` lints for tgstation#230 (tgstation#233) * Adds `http_request_fire_and_forget` (tgstation#232) * DMI metadata reading and injection (tgstation#234) * 4.0.0 (tgstation#235) * dmi: Add QR code generation (tgstation#226) * Bump `dmi` to 0.5.0, optimize `dmi_read_metadata` (tgstation#238) * Update CI to target 516.1666 (tgstation#237) * 4.1.0 (tgstation#239) * makes `rustg_noise_poisson_map` around 8x faster (tgstation#240) * IconForge: Headless Icon Generation (tgstation#236) * `cargo update` & `cargo upgrade` & `png` fix (tgstation#241) * assorted optimizations to `cellularnoise`, `dbpnoise`, and `worleynoise` (tgstation#243) * v4.2.0 (tgstation#242) * Fix attempt for CI * hash: Adds ChaCha20 CSPRNG functions, updates TOTP generator, adds Base32 (tgstation#225) * Handle errors in panic hook explicitly (tgstation#245) * do not store Git information static (tgstation#247) * Prevent `decode_base64` and `decode_base32` from panicking if given invalid base64 (tgstation#244) * 4.3.0 (tgstation#249) * fix iconforge generate_headless on win for bad paths not panicing (tgstation#248) * 5.0.0 (tgstation#250) * redo iconforge errors - 5.0.1 (tgstation#252) * 6.0.0 - drop windows 7 support (tgstation#251) * fix spritesheet gen on linux (tgstation#255) * cargo update and clippy (tgstation#253) * 6.0.1 - and `cargo update` (tgstation#256) --------- Co-authored-by: Lucy <lucy@absolucy.moe> Co-authored-by: TiviPlus <57223640+TiviPlus@users.noreply.github.com> Co-authored-by: ZeWaka <zewakagamer@gmail.com> Co-authored-by: Mothblocks <35135081+Mothblocks@users.noreply.github.com> Co-authored-by: Comrade Niobe <126028983+ComradeNiobe@users.noreply.github.com> Co-authored-by: Kapu1178 <75460809+Kapu1178@users.noreply.github.com> Co-authored-by: Y0SH1M4S73R <y0sh1m4s73r@gmail.com> Co-authored-by: Ivy <distributivgesetz93@gmail.com> Co-authored-by: Zephyr <12817816+ZephyrTFA@users.noreply.github.com> Co-authored-by: Kashargul <144968721+Kashargul@users.noreply.github.com>
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before
after
(both of these were with 255 width/height and a radius of 6)
so it turns out doing W x H
O(n)lookups while also reallocating the string a morbillion times is not exactly good for performance.instead, we pre-allocate a string with the right capacity, and use
string.pushinstead of using thestd::fmtstuff.we also convert the noise points to a HashSet, so it's an
O(1)lookup for each coordinate instead ofO(n).could prolly be improved further but meh this is still SO much better.