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// license:BSD-3-Clause
// copyright-holders:Nathan Woods, Raphael Nabet, Miodrag Milanovic
/*********************************************************************
harddriv.h
Interface to the CHD code
*********************************************************************/
#ifndef MAME_DEVICES_IMAGEDEV_HARDDRIV_H
#define MAME_DEVICES_IMAGEDEV_HARDDRIV_H
#include "harddisk.h"
#include "softlist_dev.h"
/***************************************************************************
TYPE DEFINITIONS
***************************************************************************/
// ======================> harddisk_image_base_device
class harddisk_image_base_device : public device_t, public device_image_interface
{
protected:
// construction/destruction
harddisk_image_base_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
// image-level overrides
virtual bool is_readable() const noexcept override { return true; }
virtual bool is_writeable() const noexcept override { return true; }
virtual bool is_creatable() const noexcept override { return false; }
virtual bool is_reset_on_load() const noexcept override { return false; }
virtual const char *image_type_name() const noexcept override { return "harddisk"; }
virtual const char *image_brief_type_name() const noexcept override { return "hard"; }
};
// ======================> harddisk_image_device
class harddisk_image_device : public harddisk_image_base_device
{
public:
// construction/destruction
harddisk_image_device(const machine_config &mconfig, const char *tag, device_t *owner, const char *intf)
: harddisk_image_device(mconfig, tag, owner, (uint32_t)0)
{
set_interface(intf);
}
harddisk_image_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0);
virtual ~harddisk_image_device();
template <typename... T> void set_device_load(T &&... args) { m_device_image_load.set(std::forward<T>(args)...); }
template <typename... T> void set_device_unload(T &&... args) { m_device_image_unload.set(std::forward<T>(args)...); }
void set_interface(const char *interface) { 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 bool image_is_chd_type() const noexcept override { return true; }
virtual const char *image_interface() const noexcept override { return m_interface; }
virtual const char *file_extensions() const noexcept override { return "chd,hd,hdv,2mg,hdi"; }
virtual const util::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 *tag, device_t *owner, uint32_t clock);
// device-level overrides
virtual void device_config_complete() override;
virtual void device_start() override;
virtual void device_stop() override;
// device_image_interface implementation
virtual const software_list_loader &get_software_list_loader() const override { return rom_software_list_loader::instance(); }
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;
load_delegate m_device_image_load;
unload_delegate m_device_image_unload;
const char * m_interface;
};
// device type definition
DECLARE_DEVICE_TYPE(HARDDISK, harddisk_image_device)
#endif // MAME_DEVICES_IMAGEDEV_HARDDRIV_H
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