all repos — dmenu @ c585e8e498ec6f9c423ab8ea07cf853ee5b05fbe

my build of dmenu

Improve speed of drw_text when provided with large strings

Calculates len & ew in drw_font_getexts loop by incrementing instead of
decrementing; as such avoids proportional increase in time spent in loop
based on provided strings size.
Miles Alan m@milesalan.com
Sat, 07 Aug 2021 21:34:35 -0400
commit

c585e8e498ec6f9c423ab8ea07cf853ee5b05fbe

parent

523aa08f51a88c59ad4b1f600f8ce3d122e9e289

1 files changed, 5 insertions(+), 2 deletions(-)

jump to
M drw.cdrw.c

@@ -310,8 +310,11 @@

if (utf8strlen) { drw_font_getexts(usedfont, utf8str, utf8strlen, &ew, NULL); /* shorten text if necessary */ - for (len = MIN(utf8strlen, sizeof(buf) - 1); len && ew > w; len--) - drw_font_getexts(usedfont, utf8str, len, &ew, NULL); + if (ew > w) + for (ew = 0, len = 0; ew < w - lpad * 2 && len < MIN(utf8strlen, sizeof(buf) - 1); len++) + drw_font_getexts(usedfont, utf8str, len, &ew, NULL); + else + len = MIN(utf8strlen, sizeof(buf) - 1); if (len) { memcpy(buf, utf8str, len);