macemu/BasiliskII/src/dummy/audio_dummy.cpp
2008-01-01 09:40:36 +00:00

155 lines
2.8 KiB
C++

/*
* audio_dummy.cpp - Audio support, dummy implementation
*
* Basilisk II (C) 1997-2008 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)
{
}