129 lines
2.8 KiB
C++
129 lines
2.8 KiB
C++
// license:BSD-3-Clause
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// copyright-holders:Nicola Salmoria,Aaron Giles
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#ifndef MAME_SOUND_NAMCO_H
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#define MAME_SOUND_NAMCO_H
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#include <stdio.h>
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#include <stdint.h>
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#include <memory>
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class namco_audio_device
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{
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public:
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// configuration
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void set_voices(int voices) { m_voices = voices; }
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void set_stereo(bool stereo) { m_stereo = stereo; }
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void sound_enable_w(int state);
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static constexpr unsigned MAX_VOICES = 8;
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static constexpr unsigned MAX_VOLUME = 16;
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/* this structure defines the parameters for a channel */
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struct sound_channel
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{
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uint32_t frequency;
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uint32_t counter;
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int32_t volume[2];
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int32_t noise_sw;
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int32_t noise_state;
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int32_t noise_seed;
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uint32_t noise_counter;
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int32_t noise_hold;
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int32_t waveform_select;
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};
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namco_audio_device(uint32_t clock);
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// device-level overrides
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virtual void device_start(unsigned char* wavePtr);
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void device_clock_changed(int clk);
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// internal state
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void build_decoded_waveform( uint8_t *rgnbase );
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void update_namco_waveform(int offset, uint8_t data);
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uint32_t namco_update_one(short* buffer, int size, const int16_t *wave, uint32_t counter, uint32_t freq);
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/* waveform region */
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uint8_t* m_wave_ptr;
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/* data about the sound system */
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sound_channel m_channel_list[MAX_VOICES];
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sound_channel *m_last_channel;
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uint8_t *m_wavedata;
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/* global sound parameters */
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int m_wave_size;
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bool m_sound_enable;
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int m_namco_clock;
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int m_sample_rate;
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int m_f_fracbits;
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int m_voices; /* number of voices */
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bool m_stereo; /* set to indicate stereo (e.g., System 1) */
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uint8_t m_waveram_alloc[0x400];
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/* decoded waveform table */
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int16_t m_waveform[MAX_VOLUME][512];
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virtual void sound_stream_update(short** outputs, int len);
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virtual ~namco_audio_device() {}
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};
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class namco_device : public namco_audio_device
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{
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public:
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namco_device(uint32_t clock);
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void pacman_sound_w(int offset, uint8_t data);
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uint8_t polepos_sound_r(int offset);
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void polepos_sound_w(int offset, uint8_t data);
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void device_start(unsigned char* wavePtr);
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~namco_device() {}
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private:
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uint8_t m_soundregs[0x400];
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};
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class namco_15xx_device : public namco_audio_device
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{
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public:
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namco_15xx_device(uint32_t clock);
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void namco_15xx_w(int offset, uint8_t data);
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uint8_t sharedram_r(int offset);
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void sharedram_w(int offset, uint8_t data);
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void device_start(unsigned char* wavePtr);
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~namco_15xx_device() {}
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private:
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uint8_t m_soundregs[0x400];
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};
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class namco_cus30_device : public namco_audio_device
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{
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public:
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namco_cus30_device(uint32_t clock);
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void namcos1_cus30_w(int offset, uint8_t data); /* wavedata + sound registers + RAM */
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uint8_t namcos1_cus30_r(int offset);
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void namcos1_sound_w(int offset, uint8_t data);
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void pacman_sound_w(int offset, uint8_t data);
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void device_start(unsigned char* wavePtr);
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~namco_cus30_device() {}
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};
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#endif // MAME_SOUND_NAMCO_H
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