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/*
* Copyright 2003-2021 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 "AudioManager.hxx"
#include "java/Class.hxx"
#include "java/Exception.hxx"
#include "java/File.hxx"
#define STREAM_MUSIC 3
AudioManager::AudioManager(JNIEnv *env, jobject obj) noexcept
: Java::GlobalObject(env, obj)
{
Java::Class cls(env, env->GetObjectClass(Get()));
jmethodID method = env->GetMethodID(cls, "getStreamMaxVolume", "(I)I");
assert(method);
maxVolume = env->CallIntMethod(Get(), method, STREAM_MUSIC);
getStreamVolumeMethod = env->GetMethodID(cls, "getStreamVolume", "(I)I");
assert(getStreamVolumeMethod);
setStreamVolumeMethod = env->GetMethodID(cls, "setStreamVolume", "(III)V");
assert(setStreamVolumeMethod);
}
int
AudioManager::GetVolume(JNIEnv *env)
{
if (maxVolume == 0)
return 0;
return env->CallIntMethod(Get(), getStreamVolumeMethod, STREAM_MUSIC);
}
void
AudioManager::SetVolume(JNIEnv *env, int volume)
{
if (maxVolume == 0)
return;
env->CallVoidMethod(Get(), setStreamVolumeMethod, STREAM_MUSIC, volume, 0);
}
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