From 097e200a97dfda0844c93f53f1c0a1e6f5d07201 Mon Sep 17 00:00:00 2001 From: Max Kellermann Date: Tue, 20 Oct 2009 21:23:05 +0200 Subject: mixer/{oss,alsa}: renamed the mixer source files --- src/mixer/alsa_mixer.c | 222 ------------------------------------------------- 1 file changed, 222 deletions(-) delete mode 100644 src/mixer/alsa_mixer.c (limited to 'src/mixer/alsa_mixer.c') diff --git a/src/mixer/alsa_mixer.c b/src/mixer/alsa_mixer.c deleted file mode 100644 index 52e553cc5..000000000 --- a/src/mixer/alsa_mixer.c +++ /dev/null @@ -1,222 +0,0 @@ -/* - * Copyright (C) 2003-2009 The Music Player Daemon Project - * http://www.musicpd.org - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - */ - -#include "../output_api.h" -#include "../mixer_api.h" - -#include -#include - -#define VOLUME_MIXER_ALSA_DEFAULT "default" -#define VOLUME_MIXER_ALSA_CONTROL_DEFAULT "PCM" -#define VOLUME_MIXER_ALSA_INDEX_DEFAULT 0 - -struct alsa_mixer { - /** the base mixer class */ - struct mixer base; - - const char *device; - const char *control; - unsigned int index; - - snd_mixer_t *handle; - snd_mixer_elem_t *elem; - long volume_min; - long volume_max; - int volume_set; -}; - -static struct mixer * -alsa_mixer_init(const struct config_param *param) -{ - struct alsa_mixer *am = g_new(struct alsa_mixer, 1); - - mixer_init(&am->base, &alsa_mixer); - - am->device = config_get_block_string(param, "mixer_device", - VOLUME_MIXER_ALSA_DEFAULT); - am->control = config_get_block_string(param, "mixer_control", - VOLUME_MIXER_ALSA_CONTROL_DEFAULT); - am->index = config_get_block_unsigned(param, "mixer_index", - VOLUME_MIXER_ALSA_INDEX_DEFAULT); - - return &am->base; -} - -static void -alsa_mixer_finish(struct mixer *data) -{ - struct alsa_mixer *am = (struct alsa_mixer *)data; - - g_free(am); - - /* free libasound's config cache */ - snd_config_update_free_global(); -} - -static void -alsa_mixer_close(struct mixer *data) -{ - struct alsa_mixer *am = (struct alsa_mixer *)data; - - assert(am->handle != NULL); - - snd_mixer_close(am->handle); -} - -static bool -alsa_mixer_open(struct mixer *data) -{ - struct alsa_mixer *am = (struct alsa_mixer *)data; - int err; - snd_mixer_elem_t *elem; - - am->volume_set = -1; - - err = snd_mixer_open(&am->handle, 0); - if (err < 0) { - g_warning("problems opening alsa mixer: %s\n", snd_strerror(err)); - return false; - } - - if ((err = snd_mixer_attach(am->handle, am->device)) < 0) { - g_warning("problems attaching alsa mixer: %s\n", - snd_strerror(err)); - alsa_mixer_close(data); - return false; - } - - if ((err = snd_mixer_selem_register(am->handle, NULL, - NULL)) < 0) { - g_warning("problems snd_mixer_selem_register'ing: %s\n", - snd_strerror(err)); - alsa_mixer_close(data); - return false; - } - - if ((err = snd_mixer_load(am->handle)) < 0) { - g_warning("problems snd_mixer_selem_register'ing: %s\n", - snd_strerror(err)); - alsa_mixer_close(data); - return false; - } - - elem = snd_mixer_first_elem(am->handle); - - while (elem) { - if (snd_mixer_elem_get_type(elem) == SND_MIXER_ELEM_SIMPLE) { - if ((g_ascii_strcasecmp(am->control, - snd_mixer_selem_get_name(elem)) == 0) && - (am->index == snd_mixer_selem_get_index(elem))) { - break; - } - } - elem = snd_mixer_elem_next(elem); - } - - if (elem) { - am->elem = elem; - snd_mixer_selem_get_playback_volume_range(am->elem, - &am->volume_min, - &am->volume_max); - return true; - } - - g_warning("can't find alsa mixer control \"%s\"\n", am->control); - - alsa_mixer_close(data); - return false; -} - -static int -alsa_mixer_get_volume(struct mixer *mixer) -{ - struct alsa_mixer *am = (struct alsa_mixer *)mixer; - int err; - int ret; - long level; - - assert(am->handle != NULL); - - err = snd_mixer_handle_events(am->handle); - if (err < 0) { - g_warning("problems getting alsa volume: %s (snd_mixer_%s)\n", - snd_strerror(err), "handle_events"); - return false; - } - - err = snd_mixer_selem_get_playback_volume(am->elem, - SND_MIXER_SCHN_FRONT_LEFT, - &level); - if (err < 0) { - g_warning("problems getting alsa volume: %s (snd_mixer_%s)\n", - snd_strerror(err), "selem_get_playback_volume"); - return false; - } - - ret = ((am->volume_set / 100.0) * (am->volume_max - am->volume_min) - + am->volume_min) + 0.5; - if (am->volume_set > 0 && ret == level) { - ret = am->volume_set; - } else { - ret = (int)(100 * (((float)(level - am->volume_min)) / - (am->volume_max - am->volume_min)) + 0.5); - } - - return ret; -} - -static bool -alsa_mixer_set_volume(struct mixer *mixer, unsigned volume) -{ - struct alsa_mixer *am = (struct alsa_mixer *)mixer; - float vol; - long level; - int err; - - assert(am->handle != NULL); - - vol = volume; - - am->volume_set = vol + 0.5; - - level = (long)(((vol / 100.0) * (am->volume_max - am->volume_min) + - am->volume_min) + 0.5); - level = level > am->volume_max ? am->volume_max : level; - level = level < am->volume_min ? am->volume_min : level; - - err = snd_mixer_selem_set_playback_volume_all(am->elem, level); - if (err < 0) { - g_warning("problems setting alsa volume: %s\n", - snd_strerror(err)); - return false; - } - - return true; -} - -const struct mixer_plugin alsa_mixer = { - .init = alsa_mixer_init, - .finish = alsa_mixer_finish, - .open = alsa_mixer_open, - .close = alsa_mixer_close, - .get_volume = alsa_mixer_get_volume, - .set_volume = alsa_mixer_set_volume, - .global = true, -}; -- cgit v1.2.3