// license:BSD-3-Clause
// copyright-holders:Nathan Woods, R. Belmont, Miodrag Milanovic
/*********************************************************************
Code to interface the image code with CHD-CD core.
Based on harddriv.c by Raphael Nabet 2003
*********************************************************************/
#include "emu.h"
#include "chd_cd.h"
#include "cdrom.h"
#include "romload.h"
// device type definition
DEFINE_DEVICE_TYPE(CDROM, cdrom_image_device, "cdrom_image", "CD-ROM Image")
//-------------------------------------------------
// cdrom_image_device - constructor
//-------------------------------------------------
cdrom_image_device::cdrom_image_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: cdrom_image_device(mconfig, CDROM, tag, owner, clock)
{
}
cdrom_image_device::cdrom_image_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock)
: device_t(mconfig, type, tag, owner, clock),
device_image_interface(mconfig, *this),
m_cdrom_handle(nullptr),
m_extension_list(nullptr),
m_interface(nullptr)
{
}
//-------------------------------------------------
// cdrom_image_device - destructor
//-------------------------------------------------
cdrom_image_device::~cdrom_image_device()
{
}
//-------------------------------------------------
// device_config_complete - perform any
// operations now that the configuration is
// complete
//-------------------------------------------------
void cdrom_image_device::device_config_complete()
{
m_extension_list = "chd,cue,toc,nrg,gdi,iso,cdr";
add_format("chdcd", "CD-ROM drive", m_extension_list, "");
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
void cdrom_image_device::device_start()
{
// try to locate the CHD from a DISK_REGION
chd_file *chd = machine().rom_load().get_disk_handle(owner()->tag() );
if( chd != nullptr )
{
m_cdrom_handle = cdrom_open( chd );
}
else
{
m_cdrom_handle = nullptr;
}
}
void cdrom_image_device::device_stop()
{
if (m_cdrom_handle)
cdrom_close(m_cdrom_handle);
if( m_self_chd.opened() )
m_self_chd.close();
}
image_init_result cdrom_image_device::call_load()
{
chd_error err = (chd_error)0;
chd_file *chd = nullptr;
if (m_cdrom_handle)
cdrom_close(m_cdrom_handle);
if (!loaded_through_softlist())
{
if (is_filetype("chd") && is_loaded()) {
err = m_self_chd.open( image_core_file() ); /* CDs are never writeable */
if ( err )
goto error;
chd = &m_self_chd;
}
} else {
chd = device().machine().rom_load().get_disk_handle(device().subtag("cdrom").c_str());
}
/* open the CHD file */
if (chd) {
m_cdrom_handle = cdrom_open( chd );
} else {
m_cdrom_handle = cdrom_open(filename());
}
if ( ! m_cdrom_handle )
goto error;
return image_init_result::PASS;
error:
if ( chd && chd == &m_self_chd )
m_self_chd.close( );
if ( err )
seterror( IMAGE_ERROR_UNSPECIFIED, chd_file::error_string( err ) );
return image_init_result::FAIL;
}
void cdrom_image_device::call_unload()
{
assert(m_cdrom_handle);
cdrom_close(m_cdrom_handle);
m_cdrom_handle = nullptr;
if( m_self_chd.opened() )
m_self_chd.close();
}