diff options
author | Miodrag Milanovic <mmicko@gmail.com> | 2015-09-13 08:41:44 +0200 |
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committer | Miodrag Milanovic <mmicko@gmail.com> | 2015-09-13 08:41:44 +0200 |
commit | f88cefad27a1737c76e09d99c9fb43e173506081 (patch) | |
tree | 2d8167d03579c46e226471747eb4407bd00ed6fa /src/devices/sound/k054539.h | |
parent | e92ac9e0fa8e99869894bea00589bbb526be30aa (diff) |
Move all devices into separate part of src tree (nw)
Diffstat (limited to 'src/devices/sound/k054539.h')
-rw-r--r-- | src/devices/sound/k054539.h | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/src/devices/sound/k054539.h b/src/devices/sound/k054539.h new file mode 100644 index 00000000000..d6fa2dc73a1 --- /dev/null +++ b/src/devices/sound/k054539.h @@ -0,0 +1,124 @@ +// license:BSD-3-Clause +// copyright-holders:Aaron Giles +/********************************************************* + + Konami 054539 PCM Sound Chip + +*********************************************************/ + +#pragma once + +#ifndef __K054539_H__ +#define __K054539_H__ + +typedef device_delegate<void (double left, double right)> k054539_cb_delegate; +#define K054539_CB_MEMBER(_name) void _name(double left, double right) + +#define MCFG_K054539_APAN_CB(_class, _method) \ + k054539_device::set_analog_callback(*device, k054539_cb_delegate(&_class::_method, #_class "::" #_method, downcast<_class *>(owner))); + +#define MCFG_K054539_REGION_OVERRRIDE(_region) \ + k054539_device::set_override(*device, _region); + +#define MCFG_K054539_TIMER_HANDLER(_devcb) \ + devcb = &k054539_device::set_timer_handler(*device, DEVCB_##_devcb); + + +//* control flags, may be set at DRIVER_INIT(). +#define K054539_RESET_FLAGS 0 +#define K054539_REVERSE_STEREO 1 +#define K054539_DISABLE_REVERB 2 +#define K054539_UPDATE_AT_KEYON 4 + +class k054539_device : public device_t, + public device_sound_interface +{ +public: + enum { + RESET_FLAGS = 0, + REVERSE_STEREO = 1, + DISABLE_REVERB = 2, + UPDATE_AT_KEYON = 4 + }; + + // construction/destruction + k054539_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); + + // static configuration helpers + static void set_analog_callback(device_t &device, k054539_cb_delegate callback) { downcast<k054539_device &>(device).m_apan_cb = callback; } + static void set_override(device_t &device, const char *rgnoverride) { downcast<k054539_device &>(device).m_rgnoverride = rgnoverride; } + template<class _Object> static devcb_base &set_timer_handler(device_t &device, _Object object) { return downcast<k054539_device &>(device).m_timer_handler.set_callback(object); } + + + DECLARE_WRITE8_MEMBER(write); + DECLARE_READ8_MEMBER(read); + + void init_flags(int flags); + + /* + Note that the eight PCM channels of a K054539 do not have separate + volume controls. Considering the global attenuation equation may not + be entirely accurate, k054539_set_gain() provides means to control + channel gain. It can be called anywhere but preferrably from + DRIVER_INIT(). + + Parameters: + channel : 0 - 7 + gain : 0.0=silent, 1.0=no gain, 2.0=twice as loud, etc. + */ + void set_gain(int channel, double gain); + +protected: + // device-level overrides + virtual void device_start(); + virtual void device_reset(); + virtual void device_post_load(); + virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr); + + // device_sound_interface overrides + virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples); + +private: + struct channel { + UINT32 pos; + UINT32 pfrac; + INT32 val; + INT32 pval; + }; + + double voltab[256]; + double pantab[0xf]; + + double gain[8]; + UINT8 posreg_latch[8][3]; + int flags; + + unsigned char regs[0x230]; + unsigned char *ram; + int reverb_pos; + + INT32 cur_ptr; + int cur_limit; + unsigned char *cur_zone; + unsigned char *rom; + UINT32 rom_size; + UINT32 rom_mask; + + channel channels[8]; + sound_stream *stream; + + emu_timer *m_timer; + UINT32 m_timer_state; + devcb_write_line m_timer_handler; + const char *m_rgnoverride; + k054539_cb_delegate m_apan_cb; + + bool regupdate(); + void keyon(int channel); + void keyoff(int channel); + void init_chip(); +}; + +extern const device_type K054539; + +#endif /* __K054539_H__ */ |