/********************************************************************* harddriv.h Interface to the CHD code *********************************************************************/ #ifndef HARDDRIV_H #define HARDDRIV_H #include "harddisk.h" /*************************************************************************** TYPE DEFINITIONS ***************************************************************************/ // ======================> harddisk_image_device class harddisk_image_device : public device_t, public device_image_interface { public: // construction/destruction harddisk_image_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); virtual ~harddisk_image_device(); static void static_set_device_load(device_t &device, device_image_load_delegate callback) { downcast(device).m_device_image_load = callback; } static void static_set_device_unload(device_t &device, device_image_func_delegate callback) { downcast(device).m_device_image_unload = callback; } static void static_set_interface(device_t &device, const char *_interface) { downcast(device).m_interface = _interface; } // image-level overrides virtual bool call_load(); virtual bool call_create(int create_format, option_resolution *create_args); virtual void call_unload(); virtual bool call_softlist_load(software_list_device &swlist, const char *swname, const rom_entry *start_entry) { load_software_part_region(*this, swlist, swname, start_entry ); return TRUE; } virtual iodevice_t image_type() const { return IO_HARDDISK; } virtual bool is_readable() const { return 1; } virtual bool is_writeable() const { return 1; } virtual bool is_creatable() const { return 0; } virtual bool must_be_loaded() const { return 0; } virtual bool is_reset_on_load() const { return 0; } virtual const char *image_interface() const { return m_interface; } virtual const char *file_extensions() const { return "chd,hd"; } virtual const option_guide *create_option_guide() const; // specific implementation hard_disk_file *get_hard_disk_file() { return m_hard_disk_handle; } chd_file *get_chd_file(); protected: // device-level overrides virtual void device_config_complete(); virtual void device_start(); virtual void device_stop(); int internal_load_hd(); chd_file *m_chd; chd_file m_origchd; /* handle to the original CHD */ chd_file m_diffchd; /* handle to the diff CHD */ hard_disk_file *m_hard_disk_handle; device_image_load_delegate m_device_image_load; device_image_func_delegate m_device_image_unload; const char * m_interface; }; // device type definition extern const device_type HARDDISK; /*************************************************************************** DEVICE CONFIGURATION MACROS ***************************************************************************/ #define MCFG_HARDDISK_ADD(_tag) \ MCFG_DEVICE_ADD(_tag, HARDDISK, 0) #define MCFG_HARDDISK_LOAD(_class,_method) \ harddisk_image_device::static_set_device_load(*device, device_image_load_delegate(&DEVICE_IMAGE_LOAD_NAME(_class,_method), #_class "::device_image_load_" #_method, downcast<_class *>(owner))); #define MCFG_HARDDISK_UNLOAD(_class,_method) \ harddisk_image_device::static_set_device_unload(*device, device_image_func_delegate(&DEVICE_IMAGE_UNLOAD_NAME(_class,_method), #_class "::device_image_unload_" #_method, downcast<_class *>(owner))); #define MCFG_HARDDISK_INTERFACE(_interface) \ harddisk_image_device::static_set_interface(*device, _interface); #endif /* HARDDRIV_H */