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* |
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* Adapted from Frodo's Solaris sound routines by Marc Chabanas |
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* Basilisk II (C) 1997-2000 Christian Bauer |
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* Basilisk II (C) 1997-2001 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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#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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// Global variables |
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static int fd = -1; // fd of /dev/audio |
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static sem_t audio_irq_done_sem; // Signal from interrupt to streaming thread: data block read |
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* Initialization |
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*/ |
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// Set AudioStatus to reflect current audio stream format |
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static void set_audio_status_format(void) |
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{ |
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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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} |
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void AudioInit(void) |
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{ |
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char str[256]; |
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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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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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set_audio_status_format(); |
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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; |