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authorNRK <nrk@disroot.org>2022-03-24 02:04:04 +0600
committerHiltjo Posthuma <hiltjo@codemadness.org>2022-03-25 22:49:07 +0100
commit7269c5355d257dd2ad2c53f15dc9c1cf6796aea5 (patch)
treef043c06fb58bc7a161c9329c48ec98759d9cc401 /draw/drawtext.c
parent6be057f060543bb0f3ed9423904263617cdffffe (diff)
significantly improve performance on large strings
this replaces inefficient pattern of `MIN(TEXTW(..), n)` with drw_fontset_getwidth_clamp() instead, which is far more efficient when we only want up to a certain width. dumping a decently sized (unicode) emoji file into dmenu, I see the startup time drop significantly with this patch. before -> after 360ms -> 160ms this should also noticeably improve input latency (responsiveness) given that calcoffsets() and drawmenu() are pretty hot functions.
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