GopherProxy

	tImplement mix plugin for Linux using ALSA sound lib - spoon - dwm status utili…
	git clone git://src.adamsgaard.dk/spoon
	Log
	Files
	Refs
	LICENSE
	---
	commit e7e3765e0a51f677db1df6bb6ffb11a02a2b955c
	parent 98607302965b349b4ef377b31627dad69e3a1fe9
	Author: sin <[email protected]>
	Date: Thu, 3 Nov 2016 15:42:07 +0000

	Implement mix plugin for Linux using ALSA sound lib

	Diffstat:
	M Makefile \| 6 +++++-
	M mix.c \| 47 +++++++++++++++++++++++++++++…

	2 files changed, 52 insertions(+), 1 deletion(-)
	---
	diff --git a/Makefile b/Makefile
	t@@ -11,14 +11,18 @@ include config.mk

	CPPFLAGS_OpenBSD = -I/usr/X11R6/include -I/usr/local/include
	LDFLAGS_OpenBSD = -L/usr/X11R6/lib -L/usr/local/lib
	+LDLIBS_OpenBSD = -lX11
	CPPFLAGS_Linux =\
	+ -I/usr/local/include\
	-DPATH_BAT_CAP=\"/sys/class/power_supply/BAT0/capacity\"\
	-DPATH_AC_ONLINE=\"/sys/class/power_supply/AC/online\"\
	-DPATH_TEMP=\"/sys/class/hwmon/hwmon0/temp1_input\"\
	-DPATH_CPU_FREQ=\"/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq\"
	+LDFLAGS_Linux = -L/usr/local/lib
	+LDLIBS_Linux = -lX11 -lasound
	CPPFLAGS = $(CPPFLAGS_$(UNAME))
	LDFLAGS = $(LDFLAGS_$(UNAME))
	-LDLIBS = -lX11
	+LDLIBS = $(LDLIBS_$(UNAME))

	# To remove extra compile time dependencies for unwanted plugins
	# comment out the following sections. The stub implementations
	diff --git a/mix.c b/mix.c
	t@@ -63,4 +63,51 @@ out:
	close(fd);
	return ret;
	}
	+#elif __linux__
	+#include <alsa/asoundlib.h>
	+
	+int
	+mixread(void arg, char buf, size_t len)
	+{
	+ snd_mixer_t *mixerhdl;
	+ snd_mixer_elem_t *elem;
	+ snd_mixer_selem_id_t *sid;
	+ long min, max;
	+ long vol;
	+
	+ if (snd_mixer_open(&mixerhdl, 0) < 0) {
	+ warnx("snd_mixer_open: failed");
	+ return -1;
	+ }
	+ if (snd_mixer_attach(mixerhdl, "default") < 0) {
	+ warnx("snd_mixer_attach: failed");
	+ goto err0;
	+ }
	+ if (snd_mixer_selem_register(mixerhdl, NULL, NULL) < 0) {
	+ warnx("snd_mixer_selem_register: failed");
	+ goto err0;
	+ }
	+ if (snd_mixer_load(mixerhdl) < 0) {
	+ warnx("snd_mixer_load: failed");
	+ goto err0;
	+ }
	+ snd_mixer_selem_id_alloca(&sid);
	+ snd_mixer_selem_id_set_name(sid, "Master");
	+ elem = snd_mixer_find_selem(mixerhdl, sid);
	+ if (elem == NULL) {
	+ warnx("snd_mixer_find_selem: failed");
	+ goto err0;
	+ }
	+ snd_mixer_selem_get_playback_volume_range(elem, &min, &max);
	+ snd_mixer_selem_get_playback_volume(elem, 0, &vol);
	+ snd_mixer_close(mixerhdl);
	+ if (max == 0)
	+ snprintf(buf, len, "0%%");
	+ else
	+ snprintf(buf, len, "%ld%%", vol * 100 / max);
	+ return 0;
	+err0:
	+ snd_mixer_close(mixerhdl);
	+ return -1;
	+}
	#endif