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root/cebix/BasiliskII/src/MacOSX/audio_macosx.mm
Revision: 1.1
Committed: 2003-03-23T23:36:04Z (21 years, 4 months ago) by nigel
Branch: MAIN
CVS Tags: nigel-build-12, nigel-build-13
Log Message:
Start of audio hacking

File Contents

# Content
1 /*
2 * audio_MacOSX.cpp - Based on audio_dummy.cpp
3 *
4 * $Id: audio_macosx.cpp,v 1.1 2002/03/16 03:59:58 nigel Exp $
5 *
6 * Basilisk II (C) 1997-2002 Christian Bauer
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 */
22
23 #include "sysdeps.h"
24 #include "macos_util_macosx.h"
25 #include "prefs.h"
26 #include "audio.h"
27 #include "audio_defs_macosx.h"
28
29 #define DEBUG 0
30 #include "debug.h"
31
32
33 #include "main_macosx.h"
34
35 #import <CoreFoundation/CoreFoundation.h>
36
37 #import <CoreAudio/CoreAudio.h>
38
39 #import <AppKit/AppKit.h>
40
41
42
43 AudioDeviceID device = kAudioDeviceUnknown;
44
45 /*
46 * Initialization
47 */
48
49 void AudioInit(void)
50 {
51 UInt32 count;
52 OSErr err;
53
54 // Init audio status and feature flags
55 AudioStatus.sample_rate = 44100 << 16;
56 AudioStatus.sample_size = 16;
57 AudioStatus.channels = 2;
58 AudioStatus.mixer = 0;
59 AudioStatus.num_sources = 0;
60 audio_component_flags = cmpWantsRegisterMessage | kStereoOut | k16BitOut;
61
62 // Only one sample format is supported
63 audio_sample_rates.push_back(44100 << 16);
64 audio_sample_sizes.push_back(16);
65 audio_channel_counts.push_back(2);
66
67 // Sound disabled in prefs? Then do nothing
68 if (PrefsFindBool("nosound"))
69 return;
70
71
72 // Get default audio device
73
74 count = sizeof(device);
75 err = AudioHardwareGetProperty(kAudioHardwarePropertyDefaultOutputDevice,
76 &count, (void *) &device);
77 if ( err != noErr || device == kAudioDeviceUnknown )
78 {
79 NSLog(@"Failed to get default audio output device");
80 audio_open = false;
81 return;
82 }
83
84 D(NSLog(@"Got default audio output device"));
85
86 // Audio not available
87 audio_open = false;
88 }
89
90
91 /*
92 * Deinitialization
93 */
94
95 void AudioExit(void)
96 {
97 }
98
99
100 /*
101 * First source added, start audio stream
102 */
103
104 void audio_enter_stream()
105 {
106 }
107
108
109 /*
110 * Last source removed, stop audio stream
111 */
112
113 void audio_exit_stream()
114 {
115 }
116
117
118 /*
119 * MacOS audio interrupt, read next data block
120 */
121
122 void AudioInterrupt(void)
123 {
124 D(bug("AudioInterrupt\n"));
125 }
126
127
128 /*
129 * Set sampling parameters
130 * "index" is an index into the audio_sample_rates[] etc. vectors
131 * It is guaranteed that AudioStatus.num_sources == 0
132 */
133
134 bool audio_set_sample_rate(int index)
135 {
136 return NO;
137 }
138
139 bool audio_set_sample_size(int index)
140 {
141 return NO;
142 }
143
144 bool audio_set_channels(int index)
145 {
146 return NO;
147 }
148
149
150 /*
151 * Get/set volume controls (volume values received/returned have the left channel
152 * volume in the upper 16 bits and the right channel volume in the lower 16 bits;
153 * both volumes are 8.8 fixed point values with 0x0100 meaning "maximum volume"))
154 */
155
156 bool audio_get_main_mute(void)
157 {
158 return false;
159 }
160
161 uint32 audio_get_main_volume(void)
162 {
163 return 0x01000100;
164 }
165
166 bool audio_get_speaker_mute(void)
167 {
168 return false;
169 }
170
171 uint32 audio_get_speaker_volume(void)
172 {
173 return 0x01000100;
174 }
175
176 void audio_set_main_mute(bool mute)
177 {
178 }
179
180 void audio_set_main_volume(uint32 vol)
181 {
182 }
183
184 void audio_set_speaker_mute(bool mute)
185 {
186 }
187
188 void audio_set_speaker_volume(uint32 vol)
189 {
190 }