int harddisk_image_device::internal_load_hd()
{
astring tempstring;
chd_error err = CHDERR_NONE;
m_chd = NULL;
if (m_hard_disk_handle)
hard_disk_close(m_hard_disk_handle);
/* open the CHD file */
if (software_entry() != NULL)
{
m_chd = get_disk_handle(device().machine(), device().subtag(tempstring,"harddriv"));
}
else
{
err = m_origchd.open(*image_core_file(), true);
if (err == CHDERR_NONE)
{
m_chd = &m_origchd;
}
else if (err == CHDERR_FILE_NOT_WRITEABLE)
{
err = m_origchd.open(*image_core_file(), false);
if (err == CHDERR_NONE)
{
err = open_disk_diff(device().machine().options(), basename_noext(), m_origchd, m_diffchd);
if (err == CHDERR_NONE)
{
m_chd = &m_diffchd;
}
}
}
}
if (m_chd != NULL)
{
/* open the hard disk file */
m_hard_disk_handle = hard_disk_open(m_chd);
if (m_hard_disk_handle != NULL)
return IMAGE_INIT_PASS;
}
/* if we had an error, close out the CHD */
m_origchd.close();
m_diffchd.close();
m_chd = NULL;
seterror(IMAGE_ERROR_UNSPECIFIED, chd_file::error_string(err));
return IMAGE_INIT_FAIL;
}
image_init_result harddisk_image_device::internal_load_hd()
{
chd_error err = CHDERR_NONE;
m_chd = nullptr;
if (m_hard_disk_handle)
hard_disk_close(m_hard_disk_handle);
/* open the CHD file */
if (software_entry() != nullptr)
{
m_chd = machine().rom_load().get_disk_handle(device().subtag("harddriv").c_str());
}
else
{
err = m_origchd.open(image_core_file(), true);
if (err == CHDERR_NONE)
{
m_chd = &m_origchd;
}
else if (err == CHDERR_FILE_NOT_WRITEABLE)
{
err = m_origchd.open(image_core_file(), false);
if (err == CHDERR_NONE)
{
err = open_disk_diff(device().machine().options(), basename_noext(), m_origchd, m_diffchd);
if (err == CHDERR_NONE)
{
m_chd = &m_diffchd;
}
}
}
}
if (m_chd != nullptr)
{
/* open the hard disk file */
m_hard_disk_handle = hard_disk_open(m_chd);
if (m_hard_disk_handle != nullptr)
return image_init_result::PASS;
}
/* if we had an error, close out the CHD */
m_origchd.close();
m_diffchd.close();
m_chd = nullptr;
seterror(IMAGE_ERROR_UNSPECIFIED, chd_file::error_string(err));
return image_init_result::FAIL;
}
image_init_result harddisk_image_device::call_create(int create_format, util::option_resolution *create_args)
{
int err;
UINT32 sectorsize, hunksize;
UINT32 cylinders, heads, sectors, totalsectors;
assert_always(create_args != nullptr, "Expected create_args to not be nullptr");
cylinders = create_args->lookup_int('C');
heads = create_args->lookup_int('H');
sectors = create_args->lookup_int('S');
sectorsize = create_args->lookup_int('L');
hunksize = create_args->lookup_int('K');
totalsectors = cylinders * heads * sectors;
/* create the CHD file */
chd_codec_type compression[4] = { CHD_CODEC_NONE };
err = m_origchd.create(image_core_file(), (UINT64)totalsectors * (UINT64)sectorsize, hunksize, sectorsize, compression);
if (err != CHDERR_NONE)
goto error;
/* if we created the image and hence, have metadata to set, set the metadata */
err = m_origchd.write_metadata(HARD_DISK_METADATA_TAG, 0, string_format(HARD_DISK_METADATA_FORMAT, cylinders, heads, sectors, sectorsize));
m_origchd.close();
if (err != CHDERR_NONE)
goto error;
return internal_load_hd();
error:
return image_init_result::FAIL;
}
bool harddisk_image_device::call_create(int create_format, option_resolution *create_args)
{
int err;
UINT32 sectorsize, hunksize;
UINT32 cylinders, heads, sectors, totalsectors;
astring metadata;
cylinders = option_resolution_lookup_int(create_args, 'C');
heads = option_resolution_lookup_int(create_args, 'H');
sectors = option_resolution_lookup_int(create_args, 'S');
sectorsize = option_resolution_lookup_int(create_args, 'L');
hunksize = option_resolution_lookup_int(create_args, 'K');
totalsectors = cylinders * heads * sectors;
/* create the CHD file */
chd_codec_type compression[4] = { CHD_CODEC_NONE };
err = m_origchd.create(*image_core_file(), (UINT64)totalsectors * (UINT64)sectorsize, hunksize, sectorsize, compression);
if (err != CHDERR_NONE)
goto error;
/* if we created the image and hence, have metadata to set, set the metadata */
metadata.format(HARD_DISK_METADATA_FORMAT, cylinders, heads, sectors, sectorsize);
err = m_origchd.write_metadata(HARD_DISK_METADATA_TAG, 0, metadata);
m_origchd.close();
if (err != CHDERR_NONE)
goto error;
return internal_load_hd();
error:
return IMAGE_INIT_FAIL;
}
bool harddisk_image_device::call_create(int create_format, option_resolution *create_args)
{
int err;
char metadata[256];
UINT32 sectorsize, hunksize;
UINT32 cylinders, heads, sectors, totalsectors;
cylinders = option_resolution_lookup_int(create_args, 'C');
heads = option_resolution_lookup_int(create_args, 'H');
sectors = option_resolution_lookup_int(create_args, 'S');
sectorsize = option_resolution_lookup_int(create_args, 'L');
hunksize = option_resolution_lookup_int(create_args, 'K');
totalsectors = cylinders * heads * sectors;
/* create the CHD file */
err = chd_create_file(image_core_file(), (UINT64)totalsectors * (UINT64)sectorsize, hunksize, CHDCOMPRESSION_NONE, NULL);
if (err != CHDERR_NONE)
goto error;
sprintf(metadata, HARD_DISK_METADATA_FORMAT, cylinders, heads, sectors, sectorsize);
return internal_load_hd(metadata);
error:
return IMAGE_INIT_FAIL;
}
int harddisk_image_device::internal_load_hd(const char *metadata)
{
chd_error err = (chd_error)0;
int is_writeable;
/* open the CHD file */
do
{
is_writeable = !is_readonly();
m_chd = NULL;
err = chd_open_file(image_core_file(), is_writeable ? CHD_OPEN_READWRITE : CHD_OPEN_READ, NULL, &m_chd);
/* special case; if we get CHDERR_FILE_NOT_WRITEABLE, make the
* image read only and repeat */
if (err == CHDERR_FILE_NOT_WRITEABLE)
make_readonly();
}
while(!m_chd && is_writeable && (err == CHDERR_FILE_NOT_WRITEABLE));
if (!m_chd)
goto done;
/* if we created the image and hence, have metadata to set, set the metadata */
if (metadata)
{
err = chd_set_metadata(m_chd, HARD_DISK_METADATA_TAG, 0, metadata, strlen(metadata) + 1, 0);
if (err != CHDERR_NONE)
goto done;
}
/* open the hard disk file */
m_hard_disk_handle = hard_disk_open(m_chd);
if (!m_hard_disk_handle)
goto done;
done:
if (err)
{
/* if we had an error, close out the CHD */
if (m_chd != NULL)
{
chd_close(m_chd);
m_chd = NULL;
}
seterror(IMAGE_ERROR_UNSPECIFIED, chd_get_error_string(err));
}
return err ? IMAGE_INIT_FAIL : IMAGE_INIT_PASS;
}
void floppy_image_device::commit_image()
{
image_dirty = false;
if(!output_format || !output_format->supports_save())
return;
io_generic io;
// Do _not_ remove this cast otherwise the pointer will be incorrect when used by the ioprocs.
io.file = (device_image_interface *)this;
io.procs = &image_ioprocs;
io.filler = 0xff;
file_error err = core_truncate(image_core_file(), 0);
if (err != 0)
popmessage("Error, unable to truncate image: %d", err);
output_format->save(&io, image);
}
bool cdrom_image_device::call_load()
{
chd_error err = (chd_error)0;
chd_file *chd = NULL;
astring tempstring;
if (m_cdrom_handle)
cdrom_close(m_cdrom_handle);
if (software_entry() == NULL)
{
if (strstr(m_image_name,".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 = get_disk_handle(device().machine(), device().subtag(tempstring,"cdrom"));
}
/* open the CHD file */
if (chd) {
m_cdrom_handle = cdrom_open( chd );
} else {
m_cdrom_handle = cdrom_open( m_image_name );
}
if ( ! m_cdrom_handle )
goto error;
return IMAGE_INIT_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_FAIL;
}
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 (software_entry() == nullptr)
{
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(m_image_name.c_str());
}
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;
}
