// license:BSD-3-Clause
// copyright-holders:Martin Buchholz
#include "sound/samples.h"
#define SAMPLE_LENGTH 32
class polyplay_state : public driver_device
{
public:
polyplay_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_videoram(*this, "videoram"),
m_characterram(*this, "characterram"),
m_maincpu(*this, "maincpu"),
m_samples(*this, "samples"),
m_gfxdecode(*this, "gfxdecode"),
m_palette(*this, "palette") { }
required_shared_ptr<UINT8> m_videoram;
required_shared_ptr<UINT8> m_characterram;
required_device<cpu_device> m_maincpu;
required_device<samples_device> m_samples;
required_device<gfxdecode_device> m_gfxdecode;
required_device<palette_device> m_palette;
int m_freq1;
int m_freq2;
int m_channel_playing1;
int m_channel_playing2;
INT16 m_backgroundwave[SAMPLE_LENGTH];
int m_prescale1;
int m_prescale2;
int m_channel1_active;
int m_channel1_const;
int m_channel2_active;
int m_channel2_const;
timer_device* m_timer;
int m_last;
DECLARE_WRITE8_MEMBER(polyplay_sound_channel);
DECLARE_WRITE8_MEMBER(polyplay_start_timer2);
DECLARE_READ8_MEMBER(polyplay_random_read);
DECLARE_WRITE8_MEMBER(polyplay_characterram_w);
SAMPLES_START_CB_MEMBER(sh_start);
void set_channel1(int active);
void set_channel2(int active);
void play_channel1(int data);
void play_channel2(int data);
virtual void machine_reset() override;
virtual void video_start() override;
DECLARE_PALETTE_INIT(polyplay);
UINT32 screen_update_polyplay(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
INTERRUPT_GEN_MEMBER(periodic_interrupt);
INTERRUPT_GEN_MEMBER(coin_interrupt);
TIMER_DEVICE_CALLBACK_MEMBER(polyplay_timer_callback);
};