s2dblocks

commit 716610af5291e311a921a3e683914d4332b894a0
parent c622ae87b9997ebeef692dedc7bcf2b279668c33
Author: hhvn <dev@hhvn.uk>
Date:   Thu, 14 Apr 2022 13:27:08 +0100

Audio/vol handler

Diffstat:
A
handlers/vol.c
 | 
102
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

1 file changed, 102 insertions(+), 0 deletions(-)
diff --git a/handlers/vol.c b/handlers/vol.c
@@ -0,0 +1,102 @@
+#include <stddef.h>
+#ifdef __linux__
+#include <alsa/asoundlib.h>
+#endif /* __linux__ */
+#include "../dwmbar.h"
+
+void
+draw_on(void) {
+	s2d_rect(11, 3,  1, 3);
+	s2d_rect(2,  4,  3, 1);
+	s2d_rect(9,  4,  1, 2);
+	s2d_rect(1,  5,  1, 5);
+	s2d_rect(5,  5,  1, 5);
+	s2d_rect(7,  5,  1, 1);
+	s2d_rect(8,  6,  1, 3);
+	s2d_rect(10, 6,  1, 3);
+	s2d_rect(12, 6,  1, 3);
+	s2d_rect(7,  9,  1, 1);
+	s2d_rect(9,  9,  1, 2);
+	s2d_rect(11, 9,  1, 3);
+	s2d_rect(2,  10, 4, 1);
+};
+
+void
+draw_off(void) {
+	s2d_rect(2,  4,  4, 1);
+	s2d_rect(1,  5,  1, 5);
+	s2d_rect(5,  5,  1, 5);
+	s2d_rect(7,  5,  1, 1);
+	s2d_rect(11, 5,  1, 1);
+	s2d_rect(8,  6,  1, 1);
+	s2d_rect(10, 6,  1, 1);
+	s2d_rect(9,  7,  1, 1);
+	s2d_rect(8,  8,  1, 1);
+	s2d_rect(10, 8,  1, 1);
+	s2d_rect(7,  9,  1, 1);
+	s2d_rect(11, 9,  1, 1);
+	s2d_rect(2,  10, 4, 1);
+}
+
+int
+main(void) {
+	int on = 0, percent = 0;
+	int ret;
+#ifdef __linux__
+	long min, max, vol;
+	snd_mixer_t *handle;
+	snd_mixer_elem_t *elem;
+	snd_mixer_selem_id_t *sid;
+
+	if ((ret = snd_mixer_open(&handle, 0)) < 0) {
+		s2d_print("could not open mixer: %s\n", snd_strerror(ret));
+		s2d_finish();
+		return 1;
+	}
+	if ((ret = snd_mixer_attach(handle, "default")) < 0) {
+		s2d_print("could not attach mixer: %s\n", snd_strerror(ret));
+		s2d_finish();
+		snd_mixer_close(handle);
+		return 1;
+	}
+	if ((ret = snd_mixer_selem_register(handle, NULL, NULL)) < 0) {
+		s2d_print("could not register element: %s\n", snd_strerror(ret));
+		s2d_finish();
+		snd_mixer_close(handle);
+		return 1;
+	}
+	if ((ret = snd_mixer_load(handle)) < 0) {
+		s2d_print("could not load mixer: %s\n", snd_strerror(ret));
+		s2d_finish();
+		snd_mixer_close(handle);
+		return 1;
+	}
+	snd_mixer_selem_id_malloc(&sid);
+	snd_mixer_selem_id_set_index(sid, 0);
+	snd_mixer_selem_id_set_name(sid, "Master");
+	if (!(elem = snd_mixer_find_selem(handle, sid))) {
+		s2d_print("could not find element 'Master'");
+		s2d_finish();
+		snd_mixer_close(handle);
+		return 1;
+	}
+	snd_mixer_selem_get_playback_volume_range(elem, &min, &max);
+	snd_mixer_selem_get_playback_volume(elem, 0, &vol);
+	snd_mixer_selem_get_playback_switch(elem, 0, &on);
+	percent = 100 * vol / max;
+	snd_mixer_selem_id_free(sid);
+	snd_mixer_close(handle);
+#else
+	s2d_print("no handler for this OS");
+	s2d_finish();
+#endif
+	if (on)
+		draw_on();
+	else
+		draw_off();
+	s2d_forward(-1);
+	s2d_forward(2);
+	s2d_bg(BRBG);
+	s2d_bar(0, 2, 3, bar_height - 4, 1, percent);
+	s2d_finish();
+}