diff options
Diffstat (limited to 'trunk/src/emu/imagedev/snapquik.h')
-rw-r--r-- | trunk/src/emu/imagedev/snapquik.h | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/trunk/src/emu/imagedev/snapquik.h b/trunk/src/emu/imagedev/snapquik.h new file mode 100644 index 00000000000..67bcdb17d42 --- /dev/null +++ b/trunk/src/emu/imagedev/snapquik.h @@ -0,0 +1,86 @@ +/********************************************************************* + + snapquik.h + + Snapshots and quickloads + +*********************************************************************/ + +#ifndef __SNAPQUIK_H__ +#define __SNAPQUIK_H__ + +typedef int (*snapquick_load_func)(device_image_interface &image, const char *file_type, int file_size); + +// ======================> 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 clock); + snapshot_image_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock); + virtual ~snapshot_image_device(); + + // image-level overrides + virtual bool call_load(); + virtual iodevice_t image_type() const { return IO_SNAPSHOT; } + + virtual bool is_readable() const { return 1; } + virtual bool is_writeable() const { return 0; } + 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 NULL; } + virtual const char *file_extensions() const { return m_file_extensions; } + virtual const option_guide *create_option_guide() const { return NULL; } + + void timer_callback(); + void set_handler(snapquick_load_func load, const char *ext, seconds_t sec) { m_load = load; m_file_extensions = ext; m_delay_seconds = sec; }; +protected: + // device-level overrides + virtual void device_config_complete(); + virtual void device_start(); + + snapquick_load_func m_load; /* loading function */ + const char * m_file_extensions; /* file extensions */ + seconds_t m_delay_seconds; /* loading delay (seconds) */ + attoseconds_t m_delay_attoseconds; /* loading delay (attoseconds) */ + emu_timer *m_timer; +}; + +// device type definition +extern const device_type SNAPSHOT; + +// ======================> 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 clock); + + virtual iodevice_t image_type() const { return IO_QUICKLOAD; } +}; + +// device type definition +extern const device_type QUICKLOAD; + +/*************************************************************************** + DEVICE CONFIGURATION MACROS +***************************************************************************/ +#define SNAPSHOT_LOAD_NAME(name) snapshot_load_##name +#define SNAPSHOT_LOAD(name) int SNAPSHOT_LOAD_NAME(name)(device_image_interface &image, const char *file_type, int snapshot_size) + +#define QUICKLOAD_LOAD_NAME(name) quickload_load_##name +#define QUICKLOAD_LOAD(name) int QUICKLOAD_LOAD_NAME(name)(device_image_interface &image, const char *file_type, int quickload_size) + + +#define MCFG_SNAPSHOT_ADD(_tag, _load, _file_extensions, _delay) \ + MCFG_DEVICE_ADD(_tag, SNAPSHOT, 0) \ + static_cast<snapshot_image_device *>(device)->set_handler(SNAPSHOT_LOAD_NAME(_load), _file_extensions, _delay); + +#define MCFG_QUICKLOAD_ADD(_tag, _load, _file_extensions, _delay) \ + MCFG_DEVICE_ADD(_tag, QUICKLOAD, 0) \ + static_cast<quickload_image_device *>(device)->set_handler(QUICKLOAD_LOAD_NAME(_load), _file_extensions, _delay); + +#endif /* __SNAPQUIK_H__ */ |