trunk/src/mess/audio/lynx.h
| r0 | r22921 | |
|---|
| 1 | #ifndef __LYNXSOUND_H__ |
| 2 | #define __LYNXSOUND_H__ |
| 3 | |
| 4 | struct LYNX_AUDIO { |
| 5 | struct { |
| 6 | INT8 volume; |
| 7 | UINT8 feedback; |
| 8 | INT8 output; |
| 9 | UINT8 shifter; |
| 10 | UINT8 bakup; |
| 11 | UINT8 control1; |
| 12 | UINT8 counter; |
| 13 | UINT8 control2; |
| 14 | } reg; |
| 15 | UINT8 attenuation; |
| 16 | UINT16 mask; // 12-bit |
| 17 | UINT16 shifter; // 12-bit |
| 18 | float ticks; |
| 19 | int count; |
| 20 | }; |
| 21 | |
| 22 | typedef device_delegate<void (void)> lynx_sound_timer_delegate; |
| 23 | |
| 24 | |
| 25 | class lynx_sound_device : public device_t, |
| 26 | public device_sound_interface |
| 27 | { |
| 28 | public: |
| 29 | lynx_sound_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); |
| 30 | lynx_sound_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); |
| 31 | |
| 32 | DECLARE_READ8_MEMBER(read); |
| 33 | DECLARE_WRITE8_MEMBER(write); |
| 34 | void count_down(int nr); |
| 35 | static void set_timer_delegate(device_t &device, lynx_sound_timer_delegate cb); |
| 36 | |
| 37 | protected: |
| 38 | // device-level overrides |
| 39 | virtual void device_config_complete(); |
| 40 | virtual void device_start(); |
| 41 | |
| 42 | virtual void device_reset(); |
| 43 | |
| 44 | // sound stream update overrides |
| 45 | virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples); |
| 46 | |
| 47 | void reset_channel(LYNX_AUDIO *channel); |
| 48 | void shift(int chan_nr); |
| 49 | void execute(int chan_nr); |
| 50 | void init(); |
| 51 | void register_save(); |
| 52 | |
| 53 | sound_stream *m_mixer_channel; |
| 54 | lynx_sound_timer_delegate m_timer_delegate; // this calls lynx_timer_count_down from the driver state |
| 55 | |
| 56 | float m_usec_per_sample; |
| 57 | int *m_shift_mask; |
| 58 | int *m_shift_xor; |
| 59 | UINT8 m_attenuation_enable; |
| 60 | UINT8 m_master_enable; |
| 61 | LYNX_AUDIO m_audio[4]; |
| 62 | }; |
| 63 | |
| 64 | |
| 65 | class lynx2_sound_device : public lynx_sound_device |
| 66 | { |
| 67 | public: |
| 68 | lynx2_sound_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); |
| 69 | |
| 70 | protected: |
| 71 | // device-level overrides |
| 72 | virtual void device_start(); |
| 73 | |
| 74 | // sound stream update overrides |
| 75 | virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples); |
| 76 | }; |
| 77 | |
| 78 | |
| 79 | extern const device_type LYNX_SND; |
| 80 | extern const device_type LYNX2_SND; |
| 81 | |
| 82 | |
| 83 | #define MCFG_LYNX_SND_SET_TIMER( _class, _method) \ |
| 84 | lynx_sound_device::set_timer_delegate(*device, lynx_sound_timer_delegate(&_class::_method, #_class "::" #_method, NULL, (_class *)0)); |
| 85 | |
| 86 | |
| 87 | #endif |