// license:BSD-3-Clause
// copyright-holders:Nathan Woods, Miodrag Milanovic
/*********************************************************************
snapquik.h
Snapshots and quickloads
*********************************************************************/
#include "emu.h"
#include "snapquik.h"
// device type definition
const device_type SNAPSHOT = &device_creator<snapshot_image_device>;
//-------------------------------------------------
// snapshot_image_device - constructor
//-------------------------------------------------
snapshot_image_device::snapshot_image_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
: device_t(mconfig, SNAPSHOT, "Snapshot", tag, owner, clock, "snapshot_image", __FILE__),
device_image_interface(mconfig, *this),
m_file_extensions(nullptr),
m_interface(nullptr),
m_delay_seconds(0),
m_delay_attoseconds(0),
m_timer(nullptr)
{
}
snapshot_image_device::snapshot_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_t(mconfig, type, name, tag, owner, clock, shortname, source),
device_image_interface(mconfig, *this),
m_file_extensions(nullptr),
m_interface(nullptr),
m_delay_seconds(0),
m_delay_attoseconds(0),
m_timer(nullptr)
{
}
//-------------------------------------------------
// snapshot_image_device - destructor
//-------------------------------------------------
snapshot_image_device::~snapshot_image_device()
{
}
//-------------------------------------------------
// device_config_complete - perform any
// operations now that the configuration is
// complete
//-------------------------------------------------
void snapshot_image_device::device_config_complete()
{
// set brief and instance name
update_names();
}
/*-------------------------------------------------
TIMER_CALLBACK_MEMBER(process_snapshot_or_quickload)
-------------------------------------------------*/
TIMER_CALLBACK_MEMBER(snapshot_image_device::process_snapshot_or_quickload)
{
/* invoke the load */
m_load(*this, filetype(), length());
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
void snapshot_image_device::device_start()
{
/* allocate a timer */
m_timer = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(snapshot_image_device::process_snapshot_or_quickload),this));
}
/*-------------------------------------------------
call_load
-------------------------------------------------*/
bool snapshot_image_device::call_load()
{
/* adjust the timer */
m_timer->adjust(attotime(m_delay_seconds, m_delay_attoseconds),0);
return IMAGE_INIT_PASS;
}
// device type definition
const device_type QUICKLOAD = &device_creator<quickload_image_device>;
//-------------------------------------------------
// quickload_image_device - constructor
//-------------------------------------------------
quickload_image_device::quickload_image_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
: snapshot_image_device(mconfig, QUICKLOAD, "Quickload", tag, owner, clock, "quickload", __FILE__)
{
}