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root/cebix/BasiliskII/src/MacOSX/audio_macosx.cpp

Comparing BasiliskII/src/MacOSX/audio_macosx.cpp (file contents):
Revision 1.1 by nigel, 2002-03-16T03:59:58Z vs.
Revision 1.6 by gbeauche, 2008-01-01T09:40:32Z

#	Line 1 | Line 1
1		/*
2	<	*  audio_MacOSX.cpp - Based on audio_dummy.cpp
2	>	*  audio_macosx.cpp - Audio support, implementation Mac OS X
3	>	*  Copyright (C) 2006, Daniel Sumorok
4		*
5	<	*      $Id$
5	<	*
6	<	*  Basilisk II (C) 1997-2002 Christian Bauer
5	>	*  Basilisk II (C) 1997-2008 Christian Bauer
6		*
7		*  This program is free software; you can redistribute it and/or modify
8		*  it under the terms of the GNU General Public License as published by
#	Line 21 | Line 20
20		*/
21
22		#include "sysdeps.h"
23	+
24	+	#include <sys/ioctl.h>
25	+	#include <unistd.h>
26	+	#include <errno.h>
27	+	#include <pthread.h>
28	+	#include <semaphore.h>
29	+
30	+	#include "cpu_emulation.h"
31	+	#include "main.h"
32		#include "prefs.h"
33	+	#include "user_strings.h"
34		#include "audio.h"
35		#include "audio_defs.h"
36	+	#include "MacOSX_sound_if.h"
37
38	<	#define DEBUG 1
38	>	#define DEBUG 0
39		#include "debug.h"
40
41
42	<	#include "main_macosx.h"
43	<
44	<	#import <CoreFoundation/CoreFoundation.h>
45	<
46	<	#import <CoreAudio/CoreAudio.h>
47	<
48	<
49	<
50	<	AudioDeviceID   device   = kAudioDeviceUnknown;
42	>	// The currently selected audio parameters (indices in
43	>	// audio_sample_rates[] etc. vectors)
44	>	static int audio_sample_rate_index = 0;
45	>	static int audio_sample_size_index = 0;
46	>	static int audio_channel_count_index = 0;
47	>
48	>	// Prototypes
49	>	static OSXsoundOutput *soundOutput = NULL;
50	>	static bool main_mute = false;
51	>	static bool speaker_mute = false;
52
53		/*
54		*  Initialization
55		*/
56	+	static int audioInt(void);
57
58	<	void AudioInit(void)
58	>	static bool open_audio(void)
59		{
60	<	int     count;
60	>	AudioStatus.sample_rate = audio_sample_rates[audio_sample_rate_index];
61	>	AudioStatus.sample_size = audio_sample_sizes[audio_sample_size_index];
62	>	AudioStatus.channels = audio_channel_counts[audio_channel_count_index];
63
64	<	// Init audio status and feature flags
65	<	AudioStatus.sample_rate = 44100 << 16;
52	<	AudioStatus.sample_size = 16;
53	<	AudioStatus.channels = 2;
54	<	AudioStatus.mixer = 0;
55	<	AudioStatus.num_sources = 0;
56	<	audio_component_flags = cmpWantsRegisterMessage | kStereoOut | k16BitOut;
64	>	if (soundOutput)
65	>	delete soundOutput;
66
67	<	// Only one sample format is supported
68	<	audio_sample_rates.push_back(44100 << 16);
69	<	audio_sample_sizes.push_back(16);
70	<	audio_channel_counts.push_back(2);
67	>	soundOutput = new OSXsoundOutput();
68	>	soundOutput->start(AudioStatus.sample_size, AudioStatus.channels,
69	>	AudioStatus.sample_rate >> 16);
70	>	soundOutput->setCallback(audioInt);
71	>	audio_frames_per_block = soundOutput->bufferSizeFrames();
72	>
73	>	audio_open = true;
74	>	return true;
75	>	}
76
77	+	void AudioInit(void)
78	+	{
79		// Sound disabled in prefs? Then do nothing
80		if (PrefsFindBool("nosound"))
81		return;
82
83	+	//audio_sample_sizes.push_back(8);
84	+	audio_sample_sizes.push_back(16);
85
86	<	// Get default audio device
86	>	audio_channel_counts.push_back(1);
87	>	audio_channel_counts.push_back(2);
88	>
89	>	audio_sample_rates.push_back(11025 << 16);
90	>	audio_sample_rates.push_back(22050 << 16);
91	>	audio_sample_rates.push_back(44100 << 16);
92
93	<	count = sizeof(device);
94	<	err = AudioHardwareGetProperty(kAudioHardwarePropertyDefaultOutputDevice,
95	<	&count, (void *) &device);
96	<	if ( err != noErr || device == kAudioDeviceUnknown )
74	<	{
75	<	NSLog(@"Failed to get default audio output device");
76	<	audio_open = false;
77	<	return;
78	<	}
93	>	// Default to highest supported values
94	>	audio_sample_rate_index   = audio_sample_rates.size() - 1;
95	>	audio_sample_size_index   = audio_sample_sizes.size() - 1;
96	>	audio_channel_count_index = audio_channel_counts.size() - 1;
97
98	+	AudioStatus.mixer = 0;
99	+	AudioStatus.num_sources = 0;
100	+	audio_component_flags = cmpWantsRegisterMessage | kStereoOut | k16BitOut;
101	+	audio_component_flags = 0;
102
103	<	// Audio not available
82	<	audio_open = false;
103	>	open_audio();
104		}
105
106
#	Line 87 | Line 108 | void AudioInit(void)
108		*  Deinitialization
109		*/
110
111	+	static void close_audio(void)
112	+	{
113	+	D(bug("Closing Audio\n"));
114	+
115	+	if (soundOutput)
116	+	{
117	+	delete soundOutput;
118	+	soundOutput = NULL;
119	+	}
120	+
121	+	audio_open = false;
122	+	}
123	+
124		void AudioExit(void)
125		{
126	+	// Close audio device
127	+	close_audio();
128		}
129
130
#	Line 98 | Line 134 | void AudioExit(void)
134
135		void audio_enter_stream()
136		{
137	+	// Streaming thread is always running to avoid clicking noises
138		}
139
140
#	Line 107 | Line 144 | void audio_enter_stream()
144
145		void audio_exit_stream()
146		{
147	+	// Streaming thread is always running to avoid clicking noises
148		}
149
150
#	Line 117 | Line 155 | void audio_exit_stream()
155		void AudioInterrupt(void)
156		{
157		D(bug("AudioInterrupt\n"));
158	+	uint32 apple_stream_info;
159	+	uint32 numSamples;
160	+	int16 *p;
161	+	M68kRegisters r;
162	+
163	+	if (!AudioStatus.mixer)
164	+	{
165	+	numSamples = 0;
166	+	soundOutput->sendAudioBuffer((void *)p, (int)numSamples);
167	+	D(bug("AudioInterrupt done\n"));
168	+	return;
169	+	}
170	+
171	+	// Get data from apple mixer
172	+	r.a[0] = audio_data + adatStreamInfo;
173	+	r.a[1] = AudioStatus.mixer;
174	+	Execute68k(audio_data + adatGetSourceData, &r);
175	+	D(bug(" GetSourceData() returns %08lx\n", r.d[0]));
176	+
177	+	apple_stream_info = ReadMacInt32(audio_data + adatStreamInfo);
178	+	if (apple_stream_info && (main_mute == false) && (speaker_mute == false))
179	+	{
180	+	numSamples = ReadMacInt32(apple_stream_info + scd_sampleCount);
181	+	p = (int16 *)Mac2HostAddr(ReadMacInt32(apple_stream_info + scd_buffer));
182	+	}
183	+	else
184	+	{
185	+	numSamples = 0;
186	+	p = NULL;
187	+	}
188	+
189	+	soundOutput->sendAudioBuffer((void *)p, (int)numSamples);
190	+
191	+	D(bug("AudioInterrupt done\n"));
192		}
193
194
#	Line 128 | Line 200 | void AudioInterrupt(void)
200
201		bool audio_set_sample_rate(int index)
202		{
203	+	close_audio();
204	+	audio_sample_rate_index = index;
205	+	return open_audio();
206		}
207
208		bool audio_set_sample_size(int index)
209		{
210	+	close_audio();
211	+	audio_sample_size_index = index;
212	+	return open_audio();
213		}
214
215		bool audio_set_channels(int index)
216		{
217	+	close_audio();
218	+	audio_channel_count_index = index;
219	+	return open_audio();
220		}
221
141	–
222		/*
223	<	*  Get/set volume controls (volume values received/returned have the left channel
224	<	*  volume in the upper 16 bits and the right channel volume in the lower 16 bits;
225	<	*  both volumes are 8.8 fixed point values with 0x0100 meaning "maximum volume"))
223	>	*  Get/set volume controls (volume values received/returned have the
224	>	*  left channel volume in the upper 16 bits and the right channel
225	>	*  volume in the lower 16 bits; both volumes are 8.8 fixed point
226	>	*  values with 0x0100 meaning "maximum volume"))
227		*/
147	–
228		bool audio_get_main_mute(void)
229		{
230	<	return false;
230	>	return main_mute;
231		}
232
233		uint32 audio_get_main_volume(void)
#	Line 157 | Line 237 | uint32 audio_get_main_volume(void)
237
238		bool audio_get_speaker_mute(void)
239		{
240	<	return false;
240	>	return speaker_mute;
241		}
242
243		uint32 audio_get_speaker_volume(void)
#	Line 167 | Line 247 | uint32 audio_get_speaker_volume(void)
247
248		void audio_set_main_mute(bool mute)
249		{
250	+	main_mute = mute;
251		}
252
253		void audio_set_main_volume(uint32 vol)
#	Line 175 | Line 256 | void audio_set_main_volume(uint32 vol)
256
257		void audio_set_speaker_mute(bool mute)
258		{
259	+	speaker_mute = mute;
260		}
261
262		void audio_set_speaker_volume(uint32 vol)
263		{
264		}
265	+
266	+	static int audioInt(void)
267	+	{
268	+	SetInterruptFlag(INTFLAG_AUDIO);
269	+	TriggerInterrupt();
270	+	return 0;
271	+	}

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