src/dummy/audio_dummy.cpp

/*
 *  audio_dummy.cpp - Audio support, dummy implementation
 *
 *  Basilisk II (C) 1997-2002 Christian Bauer
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include "sysdeps.h"
#include "prefs.h"
#include "audio.h"
#include "audio_defs.h"

#define DEBUG 0
#include "debug.h"


/*
 *  Initialization
 */

void AudioInit(void)
{
        // Init audio status and feature flags
        AudioStatus.sample_rate = 44100 << 16;
        AudioStatus.sample_size = 16;
        AudioStatus.channels = 2;
        AudioStatus.mixer = 0;
        AudioStatus.num_sources = 0;
        audio_component_flags = cmpWantsRegisterMessage | kStereoOut | k16BitOut;

        // Only one sample format is supported
        audio_sample_rates.push_back(44100 << 16);
        audio_sample_sizes.push_back(16);
        audio_channel_counts.push_back(2);

        // Sound disabled in prefs? Then do nothing
        if (PrefsFindBool("nosound"))
                return;

        // Audio not available
        audio_open = false;
}


/*
 *  Deinitialization
 */

void AudioExit(void)
{
}


/*
 *  First source added, start audio stream
 */

void audio_enter_stream()
{
}


/*
 *  Last source removed, stop audio stream
 */

void audio_exit_stream()
{
}


/*
 *  MacOS audio interrupt, read next data block
 */

void AudioInterrupt(void)
{
        D(bug("AudioInterrupt\n"));
}


/*
 *  Set sampling parameters
 *  "index" is an index into the audio_sample_rates[] etc. vectors
 *  It is guaranteed that AudioStatus.num_sources == 0
 */

bool audio_set_sample_rate(int index)
{
}

bool audio_set_sample_size(int index)
{
}

bool audio_set_channels(int index)
{
}


/*
 *  Get/set volume controls (volume values received/returned have the left channel
 *  volume in the upper 16 bits and the right channel volume in the lower 16 bits;
 *  both volumes are 8.8 fixed point values with 0x0100 meaning "maximum volume"))
 */

bool audio_get_main_mute(void)
{
        return false;
}

uint32 audio_get_main_volume(void)
{
        return 0x01000100;
}

bool audio_get_speaker_mute(void)
{
        return false;
}

uint32 audio_get_speaker_volume(void)
{
        return 0x01000100;
}

void audio_set_main_mute(bool mute)
{
}

void audio_set_main_volume(uint32 vol)
{
}

void audio_set_speaker_mute(bool mute)
{
}

void audio_set_speaker_volume(uint32 vol)
{
}
Revision:	1.7
Committed:	2002-01-15T14:58:40Z (22 years, 9 months ago) by cebix
Branch:	MAIN
CVS Tags:	nigel-build-12, nigel-build-13, snapshot-15012002
Changes since 1.6:	+1 -1 lines
Log Message:	- documentation updates - 2001 -> 2002 - version 0.9 -> 1.0
#	Content
1	/*
2	* audio_dummy.cpp - Audio support, dummy implementation
3	*
4	* Basilisk II (C) 1997-2002 Christian Bauer
5	*
6	* This program is free software; you can redistribute it and/or modify
7	* it under the terms of the GNU General Public License as published by
8	* the Free Software Foundation; either version 2 of the License, or
9	* (at your option) any later version.
10	*
11	* This program is distributed in the hope that it will be useful,
12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14	* GNU General Public License for more details.
15	*
16	* You should have received a copy of the GNU General Public License
17	* along with this program; if not, write to the Free Software
18	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19	*/
20
21	#include "sysdeps.h"
22	#include "prefs.h"
23	#include "audio.h"
24	#include "audio_defs.h"
25
26	#define DEBUG 0
27	#include "debug.h"
28
29
30	/*
31	* Initialization
32	*/
33
34	void AudioInit(void)
35	{
36	// Init audio status and feature flags
37	AudioStatus.sample_rate = 44100 << 16;
38	AudioStatus.sample_size = 16;
39	AudioStatus.channels = 2;
40	AudioStatus.mixer = 0;
41	AudioStatus.num_sources = 0;
42	audio_component_flags = cmpWantsRegisterMessage \| kStereoOut \| k16BitOut;
43
44	// Only one sample format is supported
45	audio_sample_rates.push_back(44100 << 16);
46	audio_sample_sizes.push_back(16);
47	audio_channel_counts.push_back(2);
48
49	// Sound disabled in prefs? Then do nothing
50	if (PrefsFindBool("nosound"))
51	return;
52
53	// Audio not available
54	audio_open = false;
55	}
56
57
58	/*
59	* Deinitialization
60	*/
61
62	void AudioExit(void)
63	{
64	}
65
66
67	/*
68	* First source added, start audio stream
69	*/
70
71	void audio_enter_stream()
72	{
73	}
74
75
76	/*
77	* Last source removed, stop audio stream
78	*/
79
80	void audio_exit_stream()
81	{
82	}
83
84
85	/*
86	* MacOS audio interrupt, read next data block
87	*/
88
89	void AudioInterrupt(void)
90	{
91	D(bug("AudioInterrupt\n"));
92	}
93
94
95	/*
96	* Set sampling parameters
97	* "index" is an index into the audio_sample_rates[] etc. vectors
98	* It is guaranteed that AudioStatus.num_sources == 0
99	*/
100
101	bool audio_set_sample_rate(int index)
102	{
103	}
104
105	bool audio_set_sample_size(int index)
106	{
107	}
108
109	bool audio_set_channels(int index)
110	{
111	}
112
113
114	/*
115	* Get/set volume controls (volume values received/returned have the left channel
116	* volume in the upper 16 bits and the right channel volume in the lower 16 bits;
117	* both volumes are 8.8 fixed point values with 0x0100 meaning "maximum volume"))
118	*/
119
120	bool audio_get_main_mute(void)
121	{
122	return false;
123	}
124
125	uint32 audio_get_main_volume(void)
126	{
127	return 0x01000100;
128	}
129
130	bool audio_get_speaker_mute(void)
131	{
132	return false;
133	}
134
135	uint32 audio_get_speaker_volume(void)
136	{
137	return 0x01000100;
138	}
139
140	void audio_set_main_mute(bool mute)
141	{
142	}
143
144	void audio_set_main_volume(uint32 vol)
145	{
146	}
147
148	void audio_set_speaker_mute(bool mute)
149	{
150	}
151
152	void audio_set_speaker_volume(uint32 vol)
153	{
154	}