Start of audio hacking

BasiliskII/src/MacOSX/audio_macosx.mm

@@ -0,0 +1,190 @@
+/*
+ *  audio_MacOSX.cpp - Based on audio_dummy.cpp
+ *
+ *	$Id$
+ *
+ *  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 "macos_util_macosx.h"
+#include "prefs.h"
+#include "audio.h"
+#include "audio_defs_macosx.h"
+
+#define DEBUG 0
+#include "debug.h"
+
+
+#include "main_macosx.h"
+
+#import <CoreFoundation/CoreFoundation.h>
+
+#import <CoreAudio/CoreAudio.h>
+
+#import <AppKit/AppKit.h>
+
+
+
+AudioDeviceID	device   = kAudioDeviceUnknown;
+
+/*
+ *  Initialization
+ */
+
+void AudioInit(void)
+{
+	UInt32		count;
+	OSErr	err;
+
+	// 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;
+
+
+	// Get default audio device
+
+	count = sizeof(device);
+	err = AudioHardwareGetProperty(kAudioHardwarePropertyDefaultOutputDevice,
+									  &count, (void *) &device);
+	if ( err != noErr || device == kAudioDeviceUnknown )
+	{
+		NSLog(@"Failed to get default audio output device");
+		audio_open = false;
+		return;
+	}
+
+	D(NSLog(@"Got default audio output device"));
+
+	// 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)
+{
+	return NO;
+}
+
+bool audio_set_sample_size(int index)
+{
+	return NO;
+}
+
+bool audio_set_channels(int index)
+{
+	return NO;
+}
+
+
+/*
+ *  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)
+{
+}