diff options
author | Max Kellermann <max@duempel.org> | 2014-01-24 16:25:21 +0100 |
---|---|---|
committer | Max Kellermann <max@duempel.org> | 2014-01-24 16:44:32 +0100 |
commit | 68eda78704ec50f71333d661db5568700fe00355 (patch) | |
tree | 0ea518a03e303946d7b4839d04b21ef77c200ff9 /src/Volume.cxx | |
parent | 7c52a1c04bccac68f4220c8bf3d3a59c16ed58db (diff) | |
download | mpd-68eda78704ec50f71333d661db5568700fe00355.tar.gz mpd-68eda78704ec50f71333d661db5568700fe00355.tar.xz mpd-68eda78704ec50f71333d661db5568700fe00355.zip |
Mixer*: move to mixer/
Diffstat (limited to 'src/Volume.cxx')
-rw-r--r-- | src/Volume.cxx | 130 |
1 files changed, 0 insertions, 130 deletions
diff --git a/src/Volume.cxx b/src/Volume.cxx deleted file mode 100644 index 4c897b21f..000000000 --- a/src/Volume.cxx +++ /dev/null @@ -1,130 +0,0 @@ -/* - * Copyright (C) 2003-2014 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.hxx" -#include "MixerAll.hxx" -#include "Idle.hxx" -#include "GlobalEvents.hxx" -#include "util/StringUtil.hxx" -#include "util/Domain.hxx" -#include "system/PeriodClock.hxx" -#include "Log.hxx" - -#include <assert.h> -#include <stdlib.h> - -#define SW_VOLUME_STATE "sw_volume: " - -static constexpr Domain volume_domain("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 PeriodClock hardware_volume_clock; - -/** - * Handler for #GlobalEvents::MIXER. - */ -static void -mixer_event_callback(void) -{ - /* flush the hardware volume cache */ - last_hardware_volume = -1; - - /* notify clients */ - idle_add(IDLE_MIXER); -} - -void volume_init(void) -{ - GlobalEvents::Register(GlobalEvents::MIXER, mixer_event_callback); -} - -int volume_level_get(void) -{ - if (last_hardware_volume >= 0 && - !hardware_volume_clock.CheckUpdate(1000)) - /* throttle access to hardware mixers */ - return last_hardware_volume; - - last_hardware_volume = mixer_all_get_volume(); - 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 = nullptr; - long int sv; - - if (!StringStartsWith(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 - FormatWarning(volume_domain, - "Can't parse software volume: %s", 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; -} |