Commit graph

4 commits

Author SHA1 Message Date
Jaroslav Kysela
116488e5f2 alsamixer: define _GNU_SOURCE to get exp10
Fixes Master, Headphones and Speaker stuck at -8 percentage after
building with Clang 7.0.1 and getting warned about implicit declaration
of exp10, which is behind _GNU_SOURCE as a non-standard feature. Thanks
Takashi Iwai for the CFLAGS suggestion on the mailing list. GCC build is
not affected, so not adding a compiler check to the configure script.

uClibc-ng has got exp10 since 1.0.12, so the fallback macro is no longer
needed. However, alsa-utils relies on gettext so might need further
patches to actually work on uClibc systems.

Signed-off-by: makepost <makepost@firemail.cc>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2019-01-18 09:40:54 +01:00
Jaroslav Kysela
6e90e4fe8e alsamixer: fix gcc warnings
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2018-10-14 17:05:22 +02:00
Peter Korsgaard
a7bd33957e alsamixer: fix build on uClibc
exp10 is a glibc extension, which isn't supported on uClibc. Luckily,
exp10() is trivial to compute based on exp(), so add a wrapper for
the uClibc case.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2011-03-14 10:31:34 +01:00
Clemens Ladisch
34bb514b5f alsamixer: use cubic scale for volume bars
Instead of mapping the raw volume values linearly to the screen, use
a mapping where the bar height is proportional to the audible volume,
i.e., where the amplitude is the cube of the bar height.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2010-12-06 14:07:48 +01:00