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, 7 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
#	User	Rev	Content
1	cebix	1.1	/*
2			* audio_dummy.cpp - Audio support, dummy implementation
3			*
4	cebix	1.7	* Basilisk II (C) 1997-2002 Christian Bauer
5	cebix	1.1	*
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	cebix	1.5	AudioStatus.sample_rate = 44100 << 16;
38			AudioStatus.sample_size = 16;
39			AudioStatus.channels = 2;
40	cebix	1.1	AudioStatus.mixer = 0;
41			AudioStatus.num_sources = 0;
42			audio_component_flags = cmpWantsRegisterMessage \| kStereoOut \| k16BitOut;
43
44	cebix	1.5	// Only one sample format is supported
45			audio_sample_rates.push_back(44100 << 16);
46	cebix	1.6	audio_sample_sizes.push_back(16);
47	cebix	1.5	audio_channel_counts.push_back(2);
48
49	cebix	1.1	// 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	cebix	1.5	* "index" is an index into the audio_sample_rates[] etc. vectors
98	cebix	1.1	* It is guaranteed that AudioStatus.num_sources == 0
99			*/
100
101	cebix	1.5	bool audio_set_sample_rate(int index)
102	cebix	1.1	{
103			}
104
105	cebix	1.5	bool audio_set_sample_size(int index)
106	cebix	1.1	{
107			}
108
109	cebix	1.5	bool audio_set_channels(int index)
110	cebix	1.1	{
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	cebix	1.2	bool audio_get_speaker_mute(void)
131	cebix	1.1	{
132			return false;
133			}
134
135	cebix	1.2	uint32 audio_get_speaker_volume(void)
136	cebix	1.1	{
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	cebix	1.2	void audio_set_speaker_mute(bool mute)
149	cebix	1.1	{
150			}
151
152	cebix	1.2	void audio_set_speaker_volume(uint32 vol)
153	cebix	1.1	{
154			}