// license:BSD-3-Clause // copyright-holders:Nathan Woods, Miodrag Milanovic /********************************************************************* snapquik.h Snapshots and quickloads *********************************************************************/ #ifndef MAME_DEVICES_IMAGEDEV_SNAPQUIK_H #define MAME_DEVICES_IMAGEDEV_SNAPQUIK_H #include "softlist_dev.h" typedef delegate snapquick_load_delegate; // ======================> snapshot_image_device class snapshot_image_device : public device_t, public device_image_interface { public: // construction/destruction snapshot_image_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); virtual ~snapshot_image_device(); void set_interface(const char *interface) { m_interface = interface; } // image-level overrides virtual image_init_result call_load() override; virtual const software_list_loader &get_software_list_loader() const override { return image_software_list_loader::instance(); } virtual iodevice_t image_type() const override { return IO_SNAPSHOT; } virtual bool is_readable() const override { return 1; } virtual bool is_writeable() const override { return 0; } virtual bool is_creatable() const override { return 0; } virtual bool must_be_loaded() const override { return 0; } virtual bool is_reset_on_load() const override { return 0; } virtual const char *image_interface() const override { return m_interface; } virtual const char *file_extensions() const override { return m_file_extensions; } TIMER_CALLBACK_MEMBER(process_snapshot_or_quickload); void set_handler(snapquick_load_delegate load, const char *ext, seconds_t sec) { m_load = load; m_file_extensions = ext; m_delay_seconds = sec; }; protected: snapshot_image_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock); // device-level overrides virtual void device_start() override; snapquick_load_delegate m_load; /* loading function */ const char * m_file_extensions; /* file extensions */ const char * m_interface; seconds_t m_delay_seconds; /* loading delay (seconds) */ attoseconds_t m_delay_attoseconds; /* loading delay (attoseconds) */ emu_timer *m_timer; }; // device type definition DECLARE_DEVICE_TYPE(SNAPSHOT, snapshot_image_device) // ======================> quickload_image_device class quickload_image_device : public snapshot_image_device { public: // construction/destruction quickload_image_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); virtual iodevice_t image_type() const override { return IO_QUICKLOAD; } }; // device type definition DECLARE_DEVICE_TYPE(QUICKLOAD, quickload_image_device) /*************************************************************************** DEVICE CONFIGURATION MACROS ***************************************************************************/ #define SNAPSHOT_LOAD_MEMBER_NAME(_name) snapshot_load_##_name #define SNAPSHOT_LOAD_NAME(_class,_name) _class::SNAPSHOT_LOAD_MEMBER_NAME(_name) #define DECLARE_SNAPSHOT_LOAD_MEMBER(_name) image_init_result SNAPSHOT_LOAD_MEMBER_NAME(_name)(device_image_interface &image, const char *file_type, int snapshot_size) #define SNAPSHOT_LOAD_MEMBER(_class,_name) image_init_result SNAPSHOT_LOAD_NAME(_class,_name)(device_image_interface &image, const char *file_type, int snapshot_size) #define SNAPSHOT_LOAD_DELEGATE(_class,_name) snapquick_load_delegate(&SNAPSHOT_LOAD_NAME(_class,_name), downcast<_class *>(device->owner())) #define QUICKLOAD_LOAD_MEMBER_NAME(_name) quickload_load##_name #define QUICKLOAD_LOAD_NAME(_class,_name) _class::QUICKLOAD_LOAD_MEMBER_NAME(_name) #define DECLARE_QUICKLOAD_LOAD_MEMBER(_name) image_init_result QUICKLOAD_LOAD_MEMBER_NAME(_name)(device_image_interface &image, const char *file_type, int quickload_size) #define QUICKLOAD_LOAD_MEMBER(_class,_name) image_init_result QUICKLOAD_LOAD_NAME(_class,_name)(device_image_interface &image, const char *file_type, int quickload_size) #define QUICKLOAD_LOAD_DELEGATE(_class,_name) snapquick_load_delegate(&QUICKLOAD_LOAD_NAME(_class,_name), downcast<_class *>(device->owner())) #define MCFG_SNAPSHOT_ADD(_tag, _class, _load, _file_extensions, _delay) \ MCFG_DEVICE_ADD(_tag, SNAPSHOT, 0) \ static_cast(device)->set_handler(SNAPSHOT_LOAD_DELEGATE(_class,_load), _file_extensions, _delay); #define MCFG_SNAPSHOT_INTERFACE(_interface) \ downcast(*device).set_interface(_interface); #define MCFG_QUICKLOAD_ADD(_tag, _class, _load, _file_extensions, _delay) \ MCFG_DEVICE_ADD(_tag, QUICKLOAD, 0) \ static_cast(device)->set_handler(QUICKLOAD_LOAD_DELEGATE(_class,_load), _file_extensions, _delay); #define MCFG_QUICKLOAD_INTERFACE(_interface) \ downcast(*device).set_interface(_interface); #endif // MAME_DEVICES_IMAGEDEV_SNAPQUIK_H