1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
|
// 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
const device_type PRINTER = &device_creator<printer_image_device>;
//-------------------------------------------------
// printer_image_device - constructor
//-------------------------------------------------
printer_image_device::printer_image_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
device_t(mconfig, PRINTER, "Printer", tag, owner, clock, "printer_image", __FILE__),
device_image_interface(mconfig, *this),
m_online_cb(*this)
{
}
//-------------------------------------------------
// device_config_complete - perform any
// operations now that the configuration is
// complete
//-------------------------------------------------
void printer_image_device::device_config_complete()
{
// set brief and instance name
update_names();
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
void printer_image_device::device_start()
{
m_online_cb.resolve();
}
/***************************************************************************
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 data)
{
if (exists())
{
fwrite(&data, 1);
}
}
/*-------------------------------------------------
DEVICE_IMAGE_CREATE( printer )
-------------------------------------------------*/
bool printer_image_device::call_create(int format_type, option_resolution *format_options)
{
return call_load();
}
/*-------------------------------------------------
DEVICE_IMAGE_LOAD( printer )
-------------------------------------------------*/
bool printer_image_device::call_load()
{
/* send notify that the printer is now online */
if (!m_online_cb.isnull())
m_online_cb(TRUE);
/* we don't need to do anything special */
return IMAGE_INIT_PASS;
}
/*-------------------------------------------------
DEVICE_IMAGE_UNLOAD( printer )
-------------------------------------------------*/
void printer_image_device::call_unload()
{
/* send notify that the printer is now offline */
if (!m_online_cb.isnull())
m_online_cb(FALSE);
}
|