57 lines
1.7 KiB
C++
57 lines
1.7 KiB
C++
/*
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* Copyright 2003-2022 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "AudioManager.hxx"
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#include "java/Class.hxx"
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#include "java/Exception.hxx"
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#include "java/File.hxx"
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#define STREAM_MUSIC 3
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AudioManager::AudioManager(JNIEnv *env, jobject obj) noexcept
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: Java::GlobalObject(env, obj)
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{
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Java::Class cls(env, env->GetObjectClass(Get()));
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jmethodID method = env->GetMethodID(cls, "getStreamMaxVolume", "(I)I");
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assert(method);
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maxVolume = env->CallIntMethod(Get(), method, STREAM_MUSIC);
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getStreamVolumeMethod = env->GetMethodID(cls, "getStreamVolume", "(I)I");
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assert(getStreamVolumeMethod);
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setStreamVolumeMethod = env->GetMethodID(cls, "setStreamVolume", "(III)V");
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assert(setStreamVolumeMethod);
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}
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int
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AudioManager::GetVolume(JNIEnv *env)
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{
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if (maxVolume == 0)
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return 0;
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return env->CallIntMethod(Get(), getStreamVolumeMethod, STREAM_MUSIC);
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}
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void
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AudioManager::SetVolume(JNIEnv *env, int volume)
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{
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if (maxVolume == 0)
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return;
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env->CallVoidMethod(Get(), setStreamVolumeMethod, STREAM_MUSIC, volume, 0);
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}
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