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// license:BSD-3-Clause
// copyright-holders:Manuel Abadia
#ifndef MAME_SOUND_GAELCO_H
#define MAME_SOUND_GAELCO_H
#pragma once
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> gaelco_gae1_device
class gaelco_gae1_device : public device_t,
public device_sound_interface
{
public:
gaelco_gae1_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0);
void set_snd_data_tag(const char *tag) { m_snd_data.set_tag(tag); }
void set_bank_offsets(int offs1, int offs2, int offs3, int offs4)
{
m_banks[0] = offs1;
m_banks[1] = offs2;
m_banks[2] = offs3;
m_banks[3] = offs4;
}
DECLARE_WRITE16_MEMBER( gaelcosnd_w );
DECLARE_READ16_MEMBER( gaelcosnd_r );
protected:
gaelco_gae1_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
// device-level overrides
virtual void device_start() override;
virtual void device_stop() override;
// sound stream update overrides
virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples) override;
private:
static constexpr int NUM_CHANNELS = 0x07;
static constexpr int VOLUME_LEVELS = 0x10;
struct sound_channel
{
int active; // is it playing?
int loop; // = 0 no looping, = 1 looping
int chunkNum; // current chunk if looping
};
sound_stream *m_stream; /* our stream */
required_region_ptr<uint8_t> m_snd_data; /* PCM data */
int m_banks[4]; /* start of each ROM bank */
sound_channel m_channel[NUM_CHANNELS]; /* 7 stereo channels */
uint16_t m_sndregs[0x38];
// Table for converting from 8 to 16 bits with volume control
int16_t m_volume_table[VOLUME_LEVELS][256];
};
DECLARE_DEVICE_TYPE(GAELCO_GAE1, gaelco_gae1_device)
// ======================> gaelco_cg1v_device
class gaelco_cg1v_device : public gaelco_gae1_device
{
public:
gaelco_cg1v_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0);
};
DECLARE_DEVICE_TYPE(GAELCO_CG1V, gaelco_cg1v_device)
#endif // MAME_SOUND_GAELCO_H
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