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// license:BSD-3-Clause
// copyright-holders:Nathan Woods, Raphael Nabet, Miodrag Milanovic
/*********************************************************************
harddriv.h
Interface to the CHD code
*********************************************************************/
#ifndef HARDDRIV_H
#define HARDDRIV_H
#include "harddisk.h"
#include "softlist_dev.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<harddisk_image_device &>(device).m_device_image_load = callback; }
static void static_set_device_unload(device_t &device, device_image_func_delegate callback) { downcast<harddisk_image_device &>(device).m_device_image_unload = callback; }
static void static_set_interface(device_t &device, const char *_interface) { downcast<harddisk_image_device &>(device).m_interface = _interface; }
// image-level overrides
virtual image_init_result call_load() override;
virtual image_init_result call_create(int create_format, util::option_resolution *create_args) override;
virtual void call_unload() override;
virtual const software_list_loader &get_software_list_loader() const override { return rom_software_list_loader::instance(); }
virtual iodevice_t image_type() const override { return IO_HARDDISK; }
virtual bool is_readable() const override { return 1; }
virtual bool is_writeable() const override { return 1; }
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 "chd,hd"; }
virtual const option_guide *create_option_guide() const override;
// specific implementation
hard_disk_file *get_hard_disk_file() { return m_hard_disk_handle; }
chd_file *get_chd_file();
protected:
harddisk_image_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);
// device-level overrides
virtual void device_config_complete() override;
virtual void device_start() override;
virtual void device_stop() override;
image_init_result 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 */
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