mirror of
https://github.com/kanjitalk755/macemu.git
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155 lines
2.8 KiB
C++
155 lines
2.8 KiB
C++
/*
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* audio_dummy.cpp - Audio support, dummy implementation
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*
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* Basilisk II (C) 1997-2002 Christian Bauer
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "sysdeps.h"
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#include "prefs.h"
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#include "audio.h"
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#include "audio_defs.h"
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#define DEBUG 0
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#include "debug.h"
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/*
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* Initialization
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*/
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void AudioInit(void)
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{
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// Init audio status and feature flags
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AudioStatus.sample_rate = 44100 << 16;
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AudioStatus.sample_size = 16;
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AudioStatus.channels = 2;
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AudioStatus.mixer = 0;
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AudioStatus.num_sources = 0;
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audio_component_flags = cmpWantsRegisterMessage | kStereoOut | k16BitOut;
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// Only one sample format is supported
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audio_sample_rates.push_back(44100 << 16);
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audio_sample_sizes.push_back(16);
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audio_channel_counts.push_back(2);
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// Sound disabled in prefs? Then do nothing
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if (PrefsFindBool("nosound"))
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return;
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// Audio not available
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audio_open = false;
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}
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/*
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* Deinitialization
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*/
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void AudioExit(void)
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{
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}
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/*
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* First source added, start audio stream
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*/
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void audio_enter_stream()
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{
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}
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/*
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* Last source removed, stop audio stream
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*/
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void audio_exit_stream()
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{
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}
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/*
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* MacOS audio interrupt, read next data block
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*/
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void AudioInterrupt(void)
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{
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D(bug("AudioInterrupt\n"));
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}
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/*
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* Set sampling parameters
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* "index" is an index into the audio_sample_rates[] etc. vectors
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* It is guaranteed that AudioStatus.num_sources == 0
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*/
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bool audio_set_sample_rate(int index)
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{
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}
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bool audio_set_sample_size(int index)
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{
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}
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bool audio_set_channels(int index)
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{
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}
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/*
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* Get/set volume controls (volume values received/returned have the left channel
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* volume in the upper 16 bits and the right channel volume in the lower 16 bits;
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* both volumes are 8.8 fixed point values with 0x0100 meaning "maximum volume"))
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*/
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bool audio_get_main_mute(void)
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{
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return false;
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}
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uint32 audio_get_main_volume(void)
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{
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return 0x01000100;
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}
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bool audio_get_speaker_mute(void)
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{
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return false;
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}
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uint32 audio_get_speaker_volume(void)
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{
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return 0x01000100;
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}
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void audio_set_main_mute(bool mute)
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{
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}
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void audio_set_main_volume(uint32 vol)
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{
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}
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void audio_set_speaker_mute(bool mute)
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{
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}
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void audio_set_speaker_volume(uint32 vol)
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{
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}
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