2024-08-08 13:12:37 -07:00
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// Commander X16 Emulator
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// Copyright (c) 2020 Frank van den Hoef
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// All rights reserved. License: 2-clause BSD
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#pragma once
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#include <SDL.h>
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2024-09-16 15:05:53 -07:00
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#ifdef __EMSCRIPTEN__
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#define SAMPLES_PER_BUFFER (1024)
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#define SAMP_POS_FRAC_BITS (22)
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#else
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#define SAMPLES_PER_BUFFER (256)
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#define SAMP_POS_FRAC_BITS (24)
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#endif
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#define VERA_SAMP_CLKS_PER_CPU_CLK ((25000000ULL << SAMP_POS_FRAC_BITS) / 512 / MHZ / 1000000)
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#define YM_SAMP_CLKS_PER_CPU_CLK ((3579545ULL << SAMP_POS_FRAC_BITS) / 64 / MHZ / 1000000)
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#define SAMPLE_BYTES (2 * sizeof(int16_t))
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#define SAMP_POS_MASK (SAMPLES_PER_BUFFER - 1)
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#define SAMP_POS_MASK_FRAC (((uint32_t)SAMPLES_PER_BUFFER << SAMP_POS_FRAC_BITS) - 1)
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2024-08-08 13:12:37 -07:00
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#define AUDIO_SAMPLERATE (25000000 / 512)
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void audio_callback(void *userdata, Uint8 *stream, int len);
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void audio_init(const char *dev_name, int num_audio_buffers);
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void audio_close(void);
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void audio_step(int cpu_clocks);
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void audio_render();
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void audio_usage(void);
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