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cebix |
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/* |
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* audio_dummy.cpp - Audio support, dummy implementation |
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* |
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* Basilisk II (C) 1997-1999 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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// Supported sample rates, sizes and channels |
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int audio_num_sample_rates = 1; |
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uint32 audio_sample_rates[] = {44100 << 16}; |
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int audio_num_sample_sizes = 1; |
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uint16 audio_sample_sizes[] = {16}; |
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int audio_num_channel_counts = 1; |
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uint16 audio_channel_counts[] = {2}; |
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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 = audio_sample_rates[0]; |
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AudioStatus.sample_size = audio_sample_sizes[0]; |
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AudioStatus.channels = audio_channel_counts[0]; |
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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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// 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. arrays |
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* It is guaranteed that AudioStatus.num_sources == 0 |
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*/ |
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void audio_set_sample_rate(int index) |
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{ |
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} |
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void audio_set_sample_size(int index) |
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{ |
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} |
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void 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_dac_mute(void) |
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{ |
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return false; |
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} |
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uint32 audio_get_dac_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_dac_mute(bool mute) |
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{ |
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} |
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void audio_set_dac_volume(uint32 vol) |
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{ |
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} |
