111 lines
3.3 KiB
Objective-C
111 lines
3.3 KiB
Objective-C
/*
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OOCASoundChannel.h
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A channel for audio playback.
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This class is an implementation detail. Do not use it directly; use an
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OOSoundSource to play an 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 <AudioToolbox/AudioToolbox.h>
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@class OOSound;
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typedef uintptr_t OOCASoundRenderContext;
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typedef OSStatus (*OOSoundChannel_RenderIMP)(id inSelf, SEL inSelector, AudioUnitRenderActionFlags *ioFlags, UInt32 inNumFrames, OOCASoundRenderContext *ioContext, AudioBufferList *ioData);
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@interface OOSoundChannel: NSObject
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{
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OOSoundChannel *_next;
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id _delegate;
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AUNode _subGraphNode;
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AUGraph _subGraph;
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AUNode _node;
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AudioUnit _au;
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OOSound *_sound;
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OOCASoundRenderContext _context;
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OOSoundChannel_RenderIMP Render;
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uint8_t _state,
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_id,
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_stopReq;
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OSStatus _error;
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}
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+ (BOOL)setUp;
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+ (void)tearDown;
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- (id)initWithID:(uint32_t)inID auGraph:(AUGraph)inGraph;
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- (void)setDelegate:(id)inDelegate;
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- (uint32_t)ID;
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- (AUNode)auSubGraphNode;
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// Unretained pointer used to maintain simple stack
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- (OOSoundChannel *)next;
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- (void)setNext:(OOSoundChannel *)inNext;
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- (BOOL)playSound:(OOSound *)inSound looped:(BOOL)inLoop;
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- (void)stop;
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- (OOSound *)sound;
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- (BOOL)isOK;
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@end
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@interface NSObject(OOSoundChannelDelegate)
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// Note: this will be called in a separate thread.
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- (void)channel:(OOSoundChannel *)inChannel didFinishPlayingSound:(OOSound *)inSound;
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@end
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