// license:BSD-3-Clause // copyright-holders:Manuel Abadia #pragma once #ifndef __GAELCO_SND_H__ #define __GAELCO_SND_H__ #define GAELCO_NUM_CHANNELS 0x07 #define GAELCO_VOLUME_LEVELS 0x10 //************************************************************************** // INTERFACE CONFIGURATION MACROS //************************************************************************** #define MCFG_GAELCO_SND_DATA(_tag) \ gaelco_gae1_device::set_snd_data_tag(*device, "^" _tag); #define MCFG_GAELCO_BANKS(_offs1, _offs2, _offs3, _offs4) \ gaelco_gae1_device::set_bank_offsets(*device, _offs1, _offs2, _offs3, _offs4); //************************************************************************** // TYPE DEFINITIONS //************************************************************************** // ======================> Sound Channel struct gaelco_sound_channel { int active; // is it playing? int loop; // = 0 no looping, = 1 looping int chunkNum; // current chunk if looping }; // ======================> 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 clock); gaelco_gae1_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source); ~gaelco_gae1_device() { } static void set_snd_data_tag(device_t &device, const char *tag) { downcast(device).m_snd_data.set_tag(tag); } static void set_bank_offsets(device_t &device, int offs1, int offs2, int offs3, int offs4) { gaelco_gae1_device &dev = downcast(device); dev.m_banks[0] = offs1; dev.m_banks[1] = offs2; dev.m_banks[2] = offs3; dev.m_banks[3] = offs4; } protected: // 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; public: DECLARE_WRITE16_MEMBER( gaelcosnd_w ); DECLARE_READ16_MEMBER( gaelcosnd_r ); private: sound_stream *m_stream; /* our stream */ required_region_ptr m_snd_data; /* PCM data */ int m_banks[4]; /* start of each ROM bank */ gaelco_sound_channel m_channel[GAELCO_NUM_CHANNELS]; /* 7 stereo channels */ UINT16 m_sndregs[0x38]; // Table for converting from 8 to 16 bits with volume control INT16 m_volume_table[GAELCO_VOLUME_LEVELS][256]; }; extern const device_type GAELCO_GAE1; // ======================> 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 clock); }; extern const device_type GAELCO_CG1V; #endif /* __GAELCO_SND_H__ */