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NRK 22511c41d5 drw_text: improve performance when there's no match 
this was the last piece of the puzzle, the case where we can't find any
font to draw the codepoint.

in such cases, we use XftFontMatch() which is INSANELY slow. but that's
not the real problem. the real problem was we were continuously trying
to match the same thing over and over again.

this patch introduces a small cache, which keeps track a couple
codepoints for which we know we won't find any matches.

with this, i can dump lots of emojies into dmenu where some of them
don't have any matching font, and still not have dmenu lag insanely or
FREEZE completely when scrolling up and down.

this also improves startup time, which will of course depend on the
system and all installed fonts; but on my system and test case i see the
following startup time drop:

before -> after
60ms   -> 34ms
2022-03-25 22:49:07 +01:00
arg.h arg.h: fixed argv checks order 2016-02-23 00:31:03 +01:00
config.def.h config.def.h: style improvement, use color Scheme enum 2016-06-28 17:56:25 +02:00
config.mk bump version to 5.1 2022-02-11 12:26:35 +01:00
dmenu.1 dmenu.1: document improved fastgrab behaviour from previous patch 2019-01-27 15:28:02 +01:00
dmenu.c inputw: improve correctness and startup performance 2022-03-25 22:49:07 +01:00
dmenu_path make dmenu_path script executable 2019-02-12 22:13:58 +01:00
dmenu_run dmenu_run: Split cache logic to dmenu_path again 2012-07-30 17:02:12 +02:00
drw.c drw_text: improve performance when there's no match 2022-03-25 22:49:07 +01:00
drw.h introduce drw_fontset_getwidth_clamp() 2022-03-25 22:49:07 +01:00
LICENSE bump version to 5.1 2022-02-11 12:26:35 +01:00
Makefile Makefile: just show the compiler output 2018-06-02 17:09:01 +02:00
README removed libdc dependence 2010-11-11 23:56:39 +00:00
stest.1 applied Martin Kühl's inverse matching flag to stest 2013-08-13 19:15:04 +02:00
stest.c remove always true condition in if statement 2021-07-25 10:55:45 +02:00
util.c die() on calloc failure 2016-11-05 11:36:42 +01:00
util.h import new drw from libsl and minor fixes. 2016-06-03 19:13:15 +02:00

README 

dmenu - dynamic menu
====================
dmenu is an efficient dynamic menu for X.


Requirements
------------
In order to build dmenu you need the Xlib header files.


Installation
------------
Edit config.mk to match your local setup (dmenu is installed into
the /usr/local namespace by default).

Afterwards enter the following command to build and install dmenu
(if necessary as root):

    make clean install


Running dmenu
-------------
See the man page for details.