103 lines
3.0 KiB
Objective-C
103 lines
3.0 KiB
Objective-C
/*
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OOCASoundMixer.h
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Class responsible for managing and mixing sound channels. This class is an
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implementation detail. Do not use it directly; use an OOSoundSource to play an
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OOSound.
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OOCASound - Core Audio sound implementation for Oolite.
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Copyright (C) 2005-2008 Jens Ayton
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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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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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA.
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This file may also be distributed under the MIT/X11 license:
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Copyright (C) 2006 Jens Ayton
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/
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#import <Foundation/Foundation.h>
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#import <mach/port.h>
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#import <AudioToolbox/AudioToolbox.h>
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@class OOMusic, OOSoundChannel, OOSoundSource;
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enum
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{
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kMixerGeneralChannels = 32
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};
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#define SUPPORT_SOUND_INSPECTOR 0
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@interface OOSoundMixer: NSObject
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{
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OOSoundChannel *_channels[kMixerGeneralChannels];
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OOSoundChannel *_freeList;
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NSLock *_listLock;
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AUGraph _graph;
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AUNode _mixerNode;
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AUNode _outputNode;
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AudioUnit _mixerUnit;
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uint32_t _activeChannels;
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uint32_t _maxChannels;
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uint32_t _playMask;
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#if SUPPORT_SOUND_INSPECTOR
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IBOutlet NSMatrix *checkBoxes;
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IBOutlet NSTextField *currentField;
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IBOutlet NSTextField *maxField;
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IBOutlet NSTextField *loadField;
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IBOutlet NSProgressIndicator *loadBar;
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#endif
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}
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// Singleton accessor
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+ (id) sharedMixer;
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- (void) update;
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- (void) setMasterVolume:(float)inVolume;
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- (OOSoundChannel *) popChannel;
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- (void) pushChannel:(OOSoundChannel *)inChannel;
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@end
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