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Diffstat (limited to '')
-rw-r--r-- | src/volume.c | 145 |
1 files changed, 0 insertions, 145 deletions
diff --git a/src/volume.c b/src/volume.c deleted file mode 100644 index d3ce47dd4..000000000 --- a/src/volume.c +++ /dev/null @@ -1,145 +0,0 @@ -/* - * Copyright (C) 2003-2011 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 "config.h" -#include "volume.h" -#include "conf.h" -#include "idle.h" -#include "pcm_volume.h" -#include "output_all.h" -#include "mixer_control.h" -#include "mixer_all.h" -#include "mixer_type.h" -#include "event_pipe.h" - -#include <glib.h> - -#include <assert.h> -#include <math.h> -#include <string.h> -#include <stdlib.h> - -#undef G_LOG_DOMAIN -#define G_LOG_DOMAIN "volume" - -#define SW_VOLUME_STATE "sw_volume: " - -static unsigned volume_software_set = 100; - -/** the cached hardware mixer value; invalid if negative */ -static int last_hardware_volume = -1; -/** the age of #last_hardware_volume */ -static GTimer *hardware_volume_timer; - -/** - * Handler for #PIPE_EVENT_MIXER. - */ -static void -mixer_event_callback(void) -{ - /* flush the hardware volume cache */ - last_hardware_volume = -1; - - /* notify clients */ - idle_add(IDLE_MIXER); -} - -void volume_finish(void) -{ - g_timer_destroy(hardware_volume_timer); -} - -void volume_init(void) -{ - hardware_volume_timer = g_timer_new(); - - event_pipe_register(PIPE_EVENT_MIXER, mixer_event_callback); -} - -int volume_level_get(void) -{ - assert(hardware_volume_timer != NULL); - - if (last_hardware_volume >= 0 && - g_timer_elapsed(hardware_volume_timer, NULL) < 1.0) - /* throttle access to hardware mixers */ - return last_hardware_volume; - - last_hardware_volume = mixer_all_get_volume(); - g_timer_start(hardware_volume_timer); - return last_hardware_volume; -} - -static bool software_volume_change(unsigned volume) -{ - assert(volume <= 100); - - volume_software_set = volume; - mixer_all_set_software_volume(volume); - - return true; -} - -static bool hardware_volume_change(unsigned volume) -{ - /* reset the cache */ - last_hardware_volume = -1; - - return mixer_all_set_volume(volume); -} - -bool volume_level_change(unsigned volume) -{ - assert(volume <= 100); - - volume_software_set = volume; - - idle_add(IDLE_MIXER); - - return hardware_volume_change(volume); -} - -bool -read_sw_volume_state(const char *line) -{ - char *end = NULL; - long int sv; - - if (!g_str_has_prefix(line, SW_VOLUME_STATE)) - return false; - - line += sizeof(SW_VOLUME_STATE) - 1; - sv = strtol(line, &end, 10); - if (*end == 0 && sv >= 0 && sv <= 100) - software_volume_change(sv); - else - g_warning("Can't parse software volume: %s\n", line); - return true; -} - -void save_sw_volume_state(FILE *fp) -{ - fprintf(fp, SW_VOLUME_STATE "%u\n", volume_software_set); -} - -unsigned -sw_volume_state_get_hash(void) -{ - return volume_software_set; -} |