/libs/ObjectAL/OpenAL/ALListener.m

  1//
  2//  ALListener.m
  3//  ObjectAL
  4//
  5//  Created by Karl Stenerud on 10-01-07.
  6//
  7// Copyright 2009 Karl Stenerud
  8//
  9// Licensed under the Apache License, Version 2.0 (the "License");
 10// you may not use this file except in compliance with the License.
 11// You may obtain a copy of the License at
 12//
 13// http://www.apache.org/licenses/LICENSE-2.0
 14//
 15// Unless required by applicable law or agreed to in writing, software
 16// distributed under the License is distributed on an "AS IS" BASIS,
 17// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 18// See the License for the specific language governing permissions and
 19// limitations under the License.
 20//
 21// Note: You are NOT required to make the license available from within your
 22// iOS application. Including it in your project is sufficient.
 23//
 24// Attribution is not required, but appreciated :)
 25//
 26
 27#import "ALListener.h"
 28#import "ObjectALMacros.h"
 29#import "ALWrapper.h"
 30#import "ALContext.h"
 31
 32
 33@implementation ALListener
 34
 35#pragma mark Object Management
 36
 37+ (id) listenerForContext:(ALContext*) context
 38{
 39	return [[[self alloc] initWithContext:context] autorelease];
 40}
 41
 42- (id) initWithContext:(ALContext*) contextIn
 43{
 44	if(nil != (self = [super init]))
 45	{
 46		suspendHandler = [[OALSuspendHandler alloc] initWithTarget:nil selector:nil];
 47
 48		context = contextIn;
 49		gain = 1.0f;
 50	}
 51	return self;
 52}
 53
 54- (void) dealloc
 55{
 56	[suspendHandler release];
 57	[super dealloc];
 58}
 59
 60#pragma mark Properties
 61
 62@synthesize context;
 63
 64- (bool) muted
 65{
 66	OPTIONALLY_SYNCHRONIZED(self)
 67	{
 68		return muted;
 69	}
 70}
 71
 72- (void) setMuted:(bool) value
 73{
 74	OPTIONALLY_SYNCHRONIZED(self)
 75	{
 76		if(self.suspended)
 77		{
 78			OAL_LOG_DEBUG(@"%@: Called mutator on suspended object", self);
 79			return;
 80		}
 81		
 82		muted = value;
 83		// Force a re-evaluation of gain.
 84		[self setGain:gain];
 85	}
 86}
 87
 88- (float) gain
 89{
 90	OPTIONALLY_SYNCHRONIZED(self)
 91	{
 92		return gain;
 93	}
 94}
 95
 96- (void) setGain:(float) value
 97{
 98	OPTIONALLY_SYNCHRONIZED(self)
 99	{
100		if(self.suspended)
101		{
102			OAL_LOG_DEBUG(@"%@: Called mutator on suspended object", self);
103			return;
104		}
105		
106		gain = value;
107		if(muted)
108		{
109			value = 0;
110		}
111		[ALWrapper listenerf:AL_GAIN value:value];
112	}
113}
114
115- (ALOrientation) orientation
116{
117	ALOrientation result;
118	OPTIONALLY_SYNCHRONIZED(self)
119	{
120		[ALWrapper getListenerfv:AL_ORIENTATION values:(float*)&result];
121	}
122	return result;
123}
124
125- (void) setOrientation:(ALOrientation) value
126{
127	OPTIONALLY_SYNCHRONIZED(self)
128	{
129		if(self.suspended)
130		{
131			OAL_LOG_DEBUG(@"%@: Called mutator on suspended object", self);
132			return;
133		}
134		
135		[ALWrapper listenerfv:AL_ORIENTATION values:(float*)&value];
136	}
137}
138
139- (ALPoint) position
140{
141	ALPoint result;
142	OPTIONALLY_SYNCHRONIZED(self)
143	{
144		[ALWrapper getListener3f:AL_POSITION v1:&result.x v2:&result.y v3:&result.z];
145	}
146	return result;
147}
148
149- (void) setPosition:(ALPoint) value
150{
151	OPTIONALLY_SYNCHRONIZED(self)
152	{
153		if(self.suspended)
154		{
155			OAL_LOG_DEBUG(@"%@: Called mutator on suspended object", self);
156			return;
157		}
158		
159		[ALWrapper listener3f:AL_POSITION v1:value.x v2:value.y v3:value.z];
160	}
161}
162
163- (ALVector) velocity
164{
165	ALVector result;
166	OPTIONALLY_SYNCHRONIZED(self)
167	{
168		[ALWrapper getListener3f:AL_VELOCITY v1:&result.x v2:&result.y v3:&result.z];
169	}
170	return result;
171}
172
173- (void) setVelocity:(ALVector) value
174{
175	OPTIONALLY_SYNCHRONIZED(self)
176	{
177		if(self.suspended)
178		{
179			OAL_LOG_DEBUG(@"%@: Called mutator on suspended object", self);
180			return;
181		}
182		
183		[ALWrapper listener3f:AL_VELOCITY v1:value.x v2:value.y v3:value.z];
184	}
185}
186
187#pragma mark Suspend Handler
188
189- (void) addSuspendListener:(id<OALSuspendListener>) listener
190{
191	[suspendHandler addSuspendListener:listener];
192}
193
194- (void) removeSuspendListener:(id<OALSuspendListener>) listener
195{
196	[suspendHandler removeSuspendListener:listener];
197}
198
199- (bool) manuallySuspended
200{
201	return suspendHandler.manuallySuspended;
202}
203
204- (void) setManuallySuspended:(bool) value
205{
206	suspendHandler.manuallySuspended = value;
207}
208
209- (bool) interrupted
210{
211	return suspendHandler.interrupted;
212}
213
214- (void) setInterrupted:(bool) value
215{
216	suspendHandler.interrupted = value;
217}
218
219- (bool) suspended
220{
221	return suspendHandler.suspended;
222}
223
224@end