src/include/audio.h

/*
 *  audio.h - Audio support
 *
 *  Basilisk II (C) 1997-1999 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
 */

#ifndef AUDIO_H
#define AUDIO_H

extern int32 AudioDispatch(uint32 params, uint32 ti);

extern bool AudioAvailable;             // Flag: audio output available (from the software point of view)

// System specific and internal functions/data
extern void AudioInit(void);
extern void AudioExit(void);

extern void AudioInterrupt(void);

extern void audio_enter_stream(void);
extern void audio_exit_stream(void);

extern void audio_set_sample_rate(int index);
extern void audio_set_sample_size(int index);
extern void audio_set_channels(int index);

extern bool audio_get_main_mute(void);
extern uint32 audio_get_main_volume(void);
extern bool audio_get_speaker_mute(void);
extern uint32 audio_get_speaker_volume(void);
extern void audio_set_main_mute(bool mute);
extern void audio_set_main_volume(uint32 vol);
extern void audio_set_speaker_mute(bool mute);
extern void audio_set_speaker_volume(uint32 vol);

// Current audio status
struct audio_status {
        uint32 sample_rate;             // 16.16 fixed point
        uint32 sample_size;             // 8 or 16
        uint32 channels;                // 1 (mono) or 2 (stereo)
        uint32 mixer;                   // Mac address of Apple Mixer
        int num_sources;                // Number of active sources
};
extern struct audio_status AudioStatus;

extern bool audio_open;                                 // Flag: audio is open and ready
extern int audio_frames_per_block;              // Number of audio frames per block
extern uint32 audio_component_flags;    // Component feature flags

extern int audio_num_sample_rates;              // Number of supported sample rates
extern uint32 audio_sample_rates[];             // Array of supported sample rates (16.16 fixed point)
extern int audio_num_sample_sizes;              // Number of supported sample sizes
extern uint16 audio_sample_sizes[];             // Array of supported sample sizes
extern int audio_num_channel_counts;    // Number of supported channel counts
extern uint16 audio_channel_counts[];   // Array of supported channels counts

// Audio component global data and 68k routines
enum {
        adatDelegateCall = 0,           // 68k code to call DelegateCall()
        adatOpenMixer = 14,                     // 68k code to call OpenMixerSoundComponent()
        adatCloseMixer = 36,            // 68k code to call CloseMixerSoundComponent()
        adatGetInfo = 54,                       // 68k code to call GetInfo()
        adatSetInfo = 78,                       // 68k code to call SetInfo()
        adatPlaySourceBuffer = 102,     // 68k code to call PlaySourceBuffer()
        adatGetSourceData = 126,        // 68k code to call GetSourceData()
        adatData = 146,                         // SoundComponentData struct
        adatMixer = 174,                        // Mac address of mixer, returned by adatOpenMixer
        adatStreamInfo = 178,           // Mac address of stream info, returned by adatGetSourceData
        SIZEOF_adat = 182
};

extern uint32 audio_data;               // Mac address of global data area

#endif
Revision:	1.2
Committed:	1999-10-20T15:13:59Z (25 years, 1 month ago) by cebix
Content type:	text/plain
Branch:	MAIN
CVS Tags:	snapshot-21101999, snapshot-22121999, release-0_8-1, snapshot-02111999
Changes since 1.1:	+4 -4 lines
Log Message:	- renamed main_volume to speaker_volume and dac_volume to main_volume (same for mute) - added defines for headphone volume/mute
#	User	Rev	Content
1	cebix	1.1	/*
2			* audio.h - Audio support
3			*
4			* Basilisk II (C) 1997-1999 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			#ifndef AUDIO_H
22			#define AUDIO_H
23
24			extern int32 AudioDispatch(uint32 params, uint32 ti);
25
26			extern bool AudioAvailable; // Flag: audio output available (from the software point of view)
27
28			// System specific and internal functions/data
29			extern void AudioInit(void);
30			extern void AudioExit(void);
31
32			extern void AudioInterrupt(void);
33
34			extern void audio_enter_stream(void);
35			extern void audio_exit_stream(void);
36
37			extern void audio_set_sample_rate(int index);
38			extern void audio_set_sample_size(int index);
39			extern void audio_set_channels(int index);
40
41			extern bool audio_get_main_mute(void);
42			extern uint32 audio_get_main_volume(void);
43	cebix	1.2	extern bool audio_get_speaker_mute(void);
44			extern uint32 audio_get_speaker_volume(void);
45	cebix	1.1	extern void audio_set_main_mute(bool mute);
46			extern void audio_set_main_volume(uint32 vol);
47	cebix	1.2	extern void audio_set_speaker_mute(bool mute);
48			extern void audio_set_speaker_volume(uint32 vol);
49	cebix	1.1
50			// Current audio status
51			struct audio_status {
52			uint32 sample_rate; // 16.16 fixed point
53			uint32 sample_size; // 8 or 16
54			uint32 channels; // 1 (mono) or 2 (stereo)
55			uint32 mixer; // Mac address of Apple Mixer
56			int num_sources; // Number of active sources
57			};
58			extern struct audio_status AudioStatus;
59
60			extern bool audio_open; // Flag: audio is open and ready
61			extern int audio_frames_per_block; // Number of audio frames per block
62			extern uint32 audio_component_flags; // Component feature flags
63
64			extern int audio_num_sample_rates; // Number of supported sample rates
65			extern uint32 audio_sample_rates[]; // Array of supported sample rates (16.16 fixed point)
66			extern int audio_num_sample_sizes; // Number of supported sample sizes
67			extern uint16 audio_sample_sizes[]; // Array of supported sample sizes
68			extern int audio_num_channel_counts; // Number of supported channel counts
69			extern uint16 audio_channel_counts[]; // Array of supported channels counts
70
71			// Audio component global data and 68k routines
72			enum {
73			adatDelegateCall = 0, // 68k code to call DelegateCall()
74			adatOpenMixer = 14, // 68k code to call OpenMixerSoundComponent()
75			adatCloseMixer = 36, // 68k code to call CloseMixerSoundComponent()
76			adatGetInfo = 54, // 68k code to call GetInfo()
77			adatSetInfo = 78, // 68k code to call SetInfo()
78			adatPlaySourceBuffer = 102, // 68k code to call PlaySourceBuffer()
79			adatGetSourceData = 126, // 68k code to call GetSourceData()
80			adatData = 146, // SoundComponentData struct
81			adatMixer = 174, // Mac address of mixer, returned by adatOpenMixer
82			adatStreamInfo = 178, // Mac address of stream info, returned by adatGetSourceData
83			SIZEOF_adat = 182
84			};
85
86			extern uint32 audio_data; // Mac address of global data area
87
88			#endif