scc_buf.h

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// -*- coding: utf-8-unix -*-
/*
 * Copyright (c) 2021-2024 Daishi Mori (mori0091)
 *
 * This software is released under the MIT License.\n
 * See https://github.com/mori0091/libmsx/blob/main/LICENSE
 *
 * GitHub libmsx project\n
 * https://github.com/mori0091/libmsx
 */
#pragma once
 
#ifndef SCC_BUF_H_
#define SCC_BUF_H_
 
#include <scc.h>
 
struct SCC_buffer {
  uint16_t fdr[5];
  uint8_t  volume[5];
  uint8_t  channel_mask;
};
 
struct SCC_wave_buffer {
  uint8_t updated;
  int8_t waveform[5][32];
};
 
extern struct SCC_wave_buffer scc_wave_buffer;
 
extern struct SCC_buffer scc_buffer;
 
void SCC_init(void);
 
void SCC_set_waveform(uint8_t ch, const int8_t waveform[32]);
 
void SCC_stop(struct SCC * scc);
 
void SCC_play(struct SCC * scc);
 
#endif // SCC_BUF_H_