// license:BSD-3-Clause
// copyright-holders:Nathan Woods, Miodrag Milanovic
/****************************************************************************
printer.c
Code for handling printer devices
****************************************************************************/
#include "emu.h"
#include "printer.h"
// device type definition
DEFINE_DEVICE_TYPE(PRINTER, printer_image_device, "printer_image", "Printer")
//-------------------------------------------------
// printer_image_device - constructor
//-------------------------------------------------
printer_image_device::printer_image_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
device_t(mconfig, PRINTER, tag, owner, clock),
device_image_interface(mconfig, *this),
m_online_cb(*this)
{
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
void printer_image_device::device_start()
{
}
/***************************************************************************
IMPLEMENTATION
***************************************************************************/
/*-------------------------------------------------
printer_is_ready - checks to see if a printer
is ready
-------------------------------------------------*/
int printer_image_device::is_ready()
{
return exists() != 0;
}
/*-------------------------------------------------
printer_output - outputs data to a printer
-------------------------------------------------*/
void printer_image_device::output(uint8_t data)
{
if (exists())
{
fwrite(&data, 1);
}
}
/*-------------------------------------------------
DEVICE_IMAGE_CREATE( printer )
-------------------------------------------------*/
std::pair<std::error_condition, std::string> printer_image_device::call_create(int format_type, util::option_resolution *format_options)
{
return call_load();
}
/*-------------------------------------------------
DEVICE_IMAGE_LOAD( printer )
-------------------------------------------------*/
std::pair<std::error_condition, std::string> printer_image_device::call_load()
{
// send notify that the printer is now online
m_online_cb(true);
// we don't need to do anything special
return std::make_pair(std::error_condition(), std::string());
}
/*-------------------------------------------------
DEVICE_IMAGE_UNLOAD( printer )
-------------------------------------------------*/
void printer_image_device::call_unload()
{
// send notify that the printer is now offline
m_online_cb(false);
}