diff options
Diffstat (limited to 'trunk/src/emu/diimage.c')
-rw-r--r-- | trunk/src/emu/diimage.c | 1035 |
1 files changed, 1035 insertions, 0 deletions
diff --git a/trunk/src/emu/diimage.c b/trunk/src/emu/diimage.c new file mode 100644 index 00000000000..fadf1d94c31 --- /dev/null +++ b/trunk/src/emu/diimage.c @@ -0,0 +1,1035 @@ +/*************************************************************************** + + diimage.c + + Device image interfaces. + +**************************************************************************** + + Copyright Miodrag Milanovic + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are + met: + + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + * Neither the name 'MAME' nor the names of its contributors may be + used to endorse or promote products derived from this software + without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY AARON GILES ''AS IS'' AND ANY EXPRESS OR + IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + DISCLAIMED. IN NO EVENT SHALL AARON GILES BE LIABLE FOR ANY DIRECT, + INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + POSSIBILITY OF SUCH DAMAGE. + +***************************************************************************/ + +#include "emu.h" +#include "ui.h" +#include "zippath.h" + + +//************************************************************************** +// DEVICE CONFIG IMAGE INTERFACE +//************************************************************************** +const image_device_type_info device_image_interface::m_device_info_array[] = + { + { IO_CARTSLOT, "cartridge", "cart" }, /* 0 */ + { IO_FLOPPY, "floppydisk", "flop" }, /* 1 */ + { IO_HARDDISK, "harddisk", "hard" }, /* 2 */ + { IO_CYLINDER, "cylinder", "cyln" }, /* 3 */ + { IO_CASSETTE, "cassette", "cass" }, /* 4 */ + { IO_PUNCHCARD, "punchcard", "pcrd" }, /* 5 */ + { IO_PUNCHTAPE, "punchtape", "ptap" }, /* 6 */ + { IO_PRINTER, "printer", "prin" }, /* 7 */ + { IO_SERIAL, "serial", "serl" }, /* 8 */ + { IO_PARALLEL, "parallel", "parl" }, /* 9 */ + { IO_SNAPSHOT, "snapshot", "dump" }, /* 10 */ + { IO_QUICKLOAD, "quickload", "quik" }, /* 11 */ + { IO_MEMCARD, "memcard", "memc" }, /* 12 */ + { IO_CDROM, "cdrom", "cdrm" }, /* 13 */ + { IO_MAGTAPE, "magtape", "magt" }, /* 14 */ + }; + + +//************************************************************************** +// DEVICE IMAGE INTERFACE +//************************************************************************** + +//------------------------------------------------- +// device_image_interface - constructor +//------------------------------------------------- + +device_image_interface::device_image_interface(const machine_config &mconfig, device_t &device) + : device_interface(device), + m_file(NULL), + m_mame_file(NULL), + m_full_software_name(NULL), + m_software_info_ptr(NULL), + m_software_part_ptr(NULL), + m_readonly(false), + m_created(false), + m_formatlist(NULL), + m_is_loading(FALSE) +{ +} + + +//------------------------------------------------- +// ~device_image_interface - destructor +//------------------------------------------------- + +device_image_interface::~device_image_interface() +{ + image_device_format **formatptr = &m_formatlist; + + /* free all entries */ + while (*formatptr != NULL) + { + image_device_format *entry = *formatptr; + *formatptr = entry->m_next; + global_free(entry); + } +} + +//------------------------------------------------- +// find_device_type - search trough list of +// device types to extact data +//------------------------------------------------- + +const image_device_type_info *device_image_interface::find_device_type(iodevice_t type) +{ + int i; + for (i = 0; i < ARRAY_LENGTH(device_image_interface::m_device_info_array); i++) + { + if (m_device_info_array[i].m_type == type) + return &m_device_info_array[i]; + } + return NULL; +} + +//------------------------------------------------- +// device_typename - retrieves device type name +//------------------------------------------------- + +const char *device_image_interface::device_typename(iodevice_t type) +{ + const image_device_type_info *info = find_device_type(type); + return (info != NULL) ? info->m_name : NULL; +} + +//------------------------------------------------- +// device_brieftypename - retrieves device +// brief type name +//------------------------------------------------- + +const char *device_image_interface::device_brieftypename(iodevice_t type) +{ + const image_device_type_info *info = find_device_type(type); + return (info != NULL) ? info->m_shortname : NULL; +} + +//------------------------------------------------- +// device_typeid - retrieves device type id +//------------------------------------------------- + +iodevice_t device_image_interface::device_typeid(const char *name) +{ + int i; + for (i = 0; i < ARRAY_LENGTH(device_image_interface::m_device_info_array); i++) + { + if (!mame_stricmp(name, m_device_info_array[i].m_name) || !mame_stricmp(name, m_device_info_array[i].m_shortname)) + return m_device_info_array[i].m_type; + } + return (iodevice_t)-1; +} + +/*------------------------------------------------- + device_compute_hash - compute a hash, + using this device's partial hash if appropriate +-------------------------------------------------*/ + +void device_image_interface::device_compute_hash(hash_collection &hashes, const void *data, size_t length, const char *types) const +{ + /* retrieve the partial hash func */ + device_image_partialhash_func partialhash = get_partial_hash(); + + /* compute the hash */ + if (partialhash) + partialhash(hashes, (const unsigned char*)data, length, types); + else + hashes.compute(reinterpret_cast<const UINT8 *>(data), length, types); +} + +/*------------------------------------------------- + set_image_filename - specifies the filename of + an image +-------------------------------------------------*/ + +image_error_t device_image_interface::set_image_filename(const char *filename) +{ + m_image_name = filename; + zippath_parent(&m_working_directory, filename); + m_basename.cpy(m_image_name); + + int loc1 = m_image_name.rchr(0,'\\'); + int loc2 = m_image_name.rchr(0,'/'); + int loc3 = m_image_name.rchr(0,':'); + int loc = MAX(loc1,MAX(loc2,loc3)); + if (loc!=-1) { + m_basename = m_basename.substr(loc + 1,m_basename.len()-loc); + } + m_basename_noext = m_basename.cpy(m_basename); + m_filetype = ""; + loc = m_basename_noext.rchr(0,'.'); + if (loc!=-1) { + m_basename_noext = m_basename_noext.substr(0,loc); + m_filetype = m_basename.cpy(m_basename); + m_filetype = m_filetype.substr(loc + 1,m_filetype.len()-loc); + } + + return IMAGE_ERROR_SUCCESS; +} + +/**************************************************************************** + CREATION FORMATS +****************************************************************************/ + +/*------------------------------------------------- + device_get_indexed_creatable_format - + accesses a specific image format available for + image creation by index +-------------------------------------------------*/ + +const image_device_format *device_image_interface::device_get_indexed_creatable_format(int index) +{ + const image_device_format *format = device_get_creatable_formats(); + while(index-- && (format != NULL)) + format = format->m_next; + return format; +} + + + +/*------------------------------------------------- + device_get_named_creatable_format - + accesses a specific image format available for + image creation by name +-------------------------------------------------*/ + +const image_device_format *device_image_interface::device_get_named_creatable_format(const char *format_name) +{ + const image_device_format *format = device_get_creatable_formats(); + while((format != NULL) && strcmp(format->m_name, format_name)) + format = format->m_next; + return format; +} + +/**************************************************************************** + ERROR HANDLING +****************************************************************************/ + +/*------------------------------------------------- + image_clear_error - clear out any specified + error +-------------------------------------------------*/ + +void device_image_interface::clear_error() +{ + m_err = IMAGE_ERROR_SUCCESS; + if (m_err_message) + { + m_err_message.reset(); + } +} + + + +/*------------------------------------------------- + error - returns the error text for an image + error +-------------------------------------------------*/ +static const char *const messages[] = +{ + "", + "Internal error", + "Unsupported operation", + "Out of memory", + "File not found", + "Invalid image", + "File already open", + "Unspecified error" +}; + +const char *device_image_interface::error() +{ + return (m_err_message) ? m_err_message.cstr() : messages[m_err]; +} + + + +/*------------------------------------------------- + seterror - specifies an error on an image +-------------------------------------------------*/ + +void device_image_interface::seterror(image_error_t err, const char *message) +{ + clear_error(); + m_err = err; + if (message != NULL) + { + m_err_message = message; + } +} + + + +/*------------------------------------------------- + message - used to display a message while + loading +-------------------------------------------------*/ + +void device_image_interface::message(const char *format, ...) +{ + va_list args; + char buffer[256]; + + /* format the message */ + va_start(args, format); + vsnprintf(buffer, ARRAY_LENGTH(buffer), format, args); + va_end(args); + + /* display the popup for a standard amount of time */ + ui_popup_time(5, "%s: %s", + basename(), + buffer); +} + + +/*************************************************************************** + WORKING DIRECTORIES +***************************************************************************/ + +/*------------------------------------------------- + try_change_working_directory - tries to change + the working directory, but only if the directory + actually exists +-------------------------------------------------*/ +bool device_image_interface::try_change_working_directory(const char *subdir) +{ + osd_directory *directory; + const osd_directory_entry *entry; + bool success = FALSE; + bool done = FALSE; + + directory = osd_opendir(m_working_directory.cstr()); + if (directory != NULL) + { + while(!done && (entry = osd_readdir(directory)) != NULL) + { + if (!mame_stricmp(subdir, entry->name)) + { + done = TRUE; + success = entry->type == ENTTYPE_DIR; + } + } + + osd_closedir(directory); + } + + /* did we successfully identify the directory? */ + if (success) + zippath_combine(&m_working_directory, m_working_directory, subdir); + + return success; +} +/*------------------------------------------------- + setup_working_directory - sets up the working + directory according to a few defaults +-------------------------------------------------*/ + +void device_image_interface::setup_working_directory() +{ + char *dst = NULL; + + osd_get_full_path(&dst,"."); + /* first set up the working directory to be the starting directory */ + m_working_directory = dst; + + /* now try browsing down to "software" */ + if (try_change_working_directory("software")) + { + /* now down to a directory for this computer */ + int gamedrv = driver_list::find(device().machine().system()); + while(gamedrv != -1 && !try_change_working_directory(driver_list::driver(gamedrv).name)) + { + gamedrv = driver_list::compatible_with(gamedrv); + } + } + osd_free(dst); +} + +//------------------------------------------------- +// working_directory - returns the working +// directory to use for this image; this is +// valid even if not mounted +//------------------------------------------------- + +const char * device_image_interface::working_directory() +{ + /* check to see if we've never initialized the working directory */ + if (!m_working_directory) + setup_working_directory(); + + return m_working_directory; +} + + +/*------------------------------------------------- + get_software_region +-------------------------------------------------*/ + +UINT8 *device_image_interface::get_software_region(const char *tag) +{ + char full_tag[256]; + + if ( m_software_info_ptr == NULL || m_software_part_ptr == NULL ) + return NULL; + + sprintf( full_tag, "%s:%s", device().tag(), tag ); + return device().machine().region( full_tag )->base(); +} + + +/*------------------------------------------------- + image_get_software_region_length +-------------------------------------------------*/ + +UINT32 device_image_interface::get_software_region_length(const char *tag) +{ + char full_tag[256]; + + sprintf( full_tag, "%s:%s", device().tag(), tag ); + return device().machine().region( full_tag )->bytes(); +} + + +/*------------------------------------------------- + image_get_feature + -------------------------------------------------*/ + +const char *device_image_interface::get_feature(const char *feature_name) +{ + feature_list *feature; + + if ( ! m_software_part_ptr->featurelist ) + return NULL; + + for ( feature = m_software_part_ptr->featurelist; feature; feature = feature->next ) + { + if ( ! strcmp( feature->name, feature_name ) ) + return feature->value; + } + + return NULL; +} + +/**************************************************************************** + Hash info loading + + If the hash is not checked and the relevant info not loaded, force that info + to be loaded +****************************************************************************/ + +void device_image_interface::run_hash(void (*partialhash)(hash_collection &, const unsigned char *, unsigned long, const char *), + hash_collection &hashes, const char *types) +{ + UINT32 size; + UINT8 *buf = NULL; + + hashes.reset(); + size = (UINT32) length(); + + buf = (UINT8*)malloc(size); + memset(buf,0,size); + + /* read the file */ + fseek(0, SEEK_SET); + fread(buf, size); + + if (partialhash) + partialhash(hashes, buf, size, types); + else + hashes.compute(buf, size, types); + + /* cleanup */ + free(buf); + fseek(0, SEEK_SET); +} + + + +void device_image_interface::image_checkhash() +{ + device_image_partialhash_func partialhash; + + /* only calculate CRC if it hasn't been calculated, and the open_mode is read only */ + if (m_hash.first() == NULL && m_readonly && !m_created) + { + /* do not cause a linear read of 600 megs please */ + /* TODO: use SHA1 in the CHD header as the hash */ + if (image_type() == IO_CDROM) + return; + + /* Skip calculating the hash when we have an image mounted through a software list */ + if ( m_software_info_ptr ) + return; + + /* retrieve the partial hash func */ + partialhash = get_partial_hash(); + + run_hash(partialhash, m_hash, hash_collection::HASH_TYPES_ALL); + } + return; +} + +UINT32 device_image_interface::crc() +{ + UINT32 crc = 0; + + image_checkhash(); + m_hash.crc(crc); + + return crc; +} + +/**************************************************************************** + Battery functions + + These functions provide transparent access to battery-backed RAM on an + image; typically for cartridges. +****************************************************************************/ + + +/*------------------------------------------------- + battery_load - retrieves the battery + backed RAM for an image. The file name is + created from the machine driver name and the + image name. +-------------------------------------------------*/ +void device_image_interface::battery_load(void *buffer, int length, int fill) +{ + astring *fname = astring_assemble_4(astring_alloc(), device().machine().system().name, PATH_SEPARATOR, m_basename_noext, ".nv"); + + image_battery_load_by_name(device().machine().options(), astring_c(fname), buffer, length, fill); + astring_free(fname); +} + +/*------------------------------------------------- + battery_save - stores the battery + backed RAM for an image. The file name is + created from the machine driver name and the + image name. +-------------------------------------------------*/ +void device_image_interface::battery_save(const void *buffer, int length) +{ + astring *fname = astring_assemble_4(astring_alloc(), device().machine().system().name, PATH_SEPARATOR, m_basename_noext, ".nv"); + + image_battery_save_by_name(device().machine().options(), astring_c(fname), buffer, length); + astring_free(fname); +} + +//------------------------------------------------- +// uses_file_extension - update configuration +// based on completed device setup +//------------------------------------------------- + +bool device_image_interface::uses_file_extension(const char *file_extension) const +{ + bool result = FALSE; + + if (file_extension[0] == '.') + file_extension++; + + /* find the extensions */ + astring extensions(file_extensions()); + char *ext = strtok((char*)extensions.cstr(),","); + while (ext != NULL) + { + if (!mame_stricmp(ext, file_extension)) + { + result = TRUE; + break; + } + ext = strtok (NULL, ","); + } + return result; +} + +/**************************************************************************** + IMAGE LOADING +****************************************************************************/ + +/*------------------------------------------------- + is_loaded - quick check to determine whether an + image is loaded +-------------------------------------------------*/ + +bool device_image_interface::is_loaded() +{ + return (m_file != NULL); +} + +/*------------------------------------------------- + load_image_by_path - loads an image with a + specific path +-------------------------------------------------*/ + +image_error_t device_image_interface::load_image_by_path(UINT32 open_flags, const char *path) +{ + file_error filerr = FILERR_NOT_FOUND; + image_error_t err = IMAGE_ERROR_FILENOTFOUND; + astring revised_path; + + /* attempt to read the file */ + filerr = zippath_fopen(path, open_flags, &m_file, &revised_path); + + /* did the open succeed? */ + switch(filerr) + { + case FILERR_NONE: + /* success! */ + m_readonly = (open_flags & OPEN_FLAG_WRITE) ? 0 : 1; + m_created = (open_flags & OPEN_FLAG_CREATE) ? 1 : 0; + err = IMAGE_ERROR_SUCCESS; + break; + + case FILERR_NOT_FOUND: + case FILERR_ACCESS_DENIED: + /* file not found (or otherwise cannot open); continue */ + err = IMAGE_ERROR_FILENOTFOUND; + break; + + case FILERR_OUT_OF_MEMORY: + /* out of memory */ + err = IMAGE_ERROR_OUTOFMEMORY; + break; + + case FILERR_ALREADY_OPEN: + /* this shouldn't happen */ + err = IMAGE_ERROR_ALREADYOPEN; + break; + + case FILERR_FAILURE: + case FILERR_TOO_MANY_FILES: + case FILERR_INVALID_DATA: + default: + /* other errors */ + err = IMAGE_ERROR_INTERNAL; + break; + } + + /* if successful, set the file name */ + if (filerr == FILERR_NONE) + set_image_filename(revised_path); + + return err; +} + +/*------------------------------------------------- + determine_open_plan - determines which open + flags to use, and in what order +-------------------------------------------------*/ + +void device_image_interface::determine_open_plan(int is_create, UINT32 *open_plan) +{ + int i = 0; + + /* emit flags */ + if (!is_create && is_readable() && is_writeable()) + open_plan[i++] = OPEN_FLAG_READ | OPEN_FLAG_WRITE; + if (!is_create && !is_readable() && is_writeable()) + open_plan[i++] = OPEN_FLAG_WRITE; + if (!is_create && is_readable()) + open_plan[i++] = OPEN_FLAG_READ; + if (is_writeable() && is_creatable()) + open_plan[i++] = OPEN_FLAG_READ | OPEN_FLAG_WRITE | OPEN_FLAG_CREATE; + open_plan[i] = 0; +} + +/*------------------------------------------------- + load_software - software image loading +-------------------------------------------------*/ +bool device_image_interface::load_software(char *swlist, char *swname, rom_entry *start) +{ + astring locationtag, breakstr("%"); + const rom_entry *region; + astring regiontag; + bool retVal = FALSE; + for (region = start; region != NULL; region = rom_next_region(region)) + { + /* loop until we hit the end of this region */ + const rom_entry *romp = region + 1; + while (!ROMENTRY_ISREGIONEND(romp)) + { + /* handle files */ + if (ROMENTRY_ISFILE(romp)) + { + file_error filerr = FILERR_NOT_FOUND; + + UINT32 crc = 0; + bool has_crc = hash_collection(ROM_GETHASHDATA(romp)).crc(crc); + + // attempt reading up the chain through the parents and create a locationtag astring in the format + // " swlist % clonename % parentname " + // below, we have the code to split the elements and to create paths to load from + + software_list *software_list_ptr = software_list_open(device().machine().options(), swlist, FALSE, NULL); + if (software_list_ptr) + { + for (software_info *swinfo = software_list_find(software_list_ptr, swname, NULL); swinfo != NULL; ) + { + { + astring tmp(swinfo->shortname); + locationtag.cat(tmp); + locationtag.cat(breakstr); + //printf("%s\n", locationtag.cstr()); + } + + const char *parentname = software_get_clone(device().machine().options(), swlist, swinfo->shortname); + if (parentname != NULL) + swinfo = software_list_find(software_list_ptr, parentname, NULL); + else + swinfo = NULL; + } + // strip the final '%' + locationtag.del(locationtag.len() - 1, 1); + software_list_close(software_list_ptr); + } + + if (software_get_support(device().machine().options(), swlist, swname) == SOFTWARE_SUPPORTED_PARTIAL) + mame_printf_error("WARNING: support for software %s (in list %s) is only partial\n", swname, swlist); + + if (software_get_support(device().machine().options(), swlist, swname) == SOFTWARE_SUPPORTED_NO) + mame_printf_error("WARNING: support for software %s (in list %s) is only preliminary\n", swname, swlist); + + // check if locationtag actually contains two locations separated by '%' + // (i.e. check if we are dealing with a clone in softwarelist) + astring tag2, tag3, tag4(locationtag), tag5; + int separator = tag4.chr(0, '%'); + if (separator != -1) + { + // we are loading a clone through softlists, split the setname from the parentname + tag5.cpysubstr(tag4, separator + 1, tag4.len() - separator + 1); + tag4.del(separator, tag4.len() - separator); + } + + // prepare locations where we have to load from: list/parentname & list/clonename + astring tag1(swlist); + tag1.cat(PATH_SEPARATOR); + tag2.cpy(tag1.cat(tag4)); + tag1.cpy(swlist); + tag1.cat(PATH_SEPARATOR); + tag3.cpy(tag1.cat(tag5)); + + if (tag5.chr(0, '%') != -1) + fatalerror("We do not support clones of clones!\n"); + + // try to load from the available location(s): + // - if we are not using lists, we have regiontag only; + // - if we are using lists, we have: list/clonename, list/parentname, clonename, parentname + // try to load from list/setname + if ((m_mame_file == NULL) && (tag2.cstr() != NULL)) + filerr = common_process_file(device().machine().options(), tag2.cstr(), has_crc, crc, romp, &m_mame_file); + // try to load from list/parentname + if ((m_mame_file == NULL) && (tag3.cstr() != NULL)) + filerr = common_process_file(device().machine().options(), tag3.cstr(), has_crc, crc, romp, &m_mame_file); + // try to load from setname + if ((m_mame_file == NULL) && (tag4.cstr() != NULL)) + filerr = common_process_file(device().machine().options(), tag4.cstr(), has_crc, crc, romp, &m_mame_file); + // try to load from parentname + if ((m_mame_file == NULL) && (tag5.cstr() != NULL)) + filerr = common_process_file(device().machine().options(), tag5.cstr(), has_crc, crc, romp, &m_mame_file); + + if (filerr == FILERR_NONE) + { + m_file = *m_mame_file; + retVal = TRUE; + } + + break; // load first item for start + } + romp++; /* something else; skip */ + } + } + return retVal; +} + +/*------------------------------------------------- + load_internal - core image loading +-------------------------------------------------*/ + +bool device_image_interface::load_internal(const char *path, bool is_create, int create_format, option_resolution *create_args) +{ + UINT32 open_plan[4]; + int i; + bool softload = FALSE; + m_from_swlist = FALSE; + + // if the path contains no period, we are using softlists, so we won't create an image + astring pathstr(path); + bool filename_has_period = (pathstr.rchr(0, '.') != -1) ? TRUE : FALSE; + + /* first unload the image */ + unload(); + + /* clear any possible error messages */ + clear_error(); + + /* we are now loading */ + m_is_loading = TRUE; + + /* record the filename */ + m_err = set_image_filename(path); + + if (m_err) + goto done; + + /* Check if there's a software list defined for this device and use that if we're not creating an image */ + if (!filename_has_period) + { + softload = load_software_part( device().machine().options(), this, path, &m_software_info_ptr, &m_software_part_ptr, &m_full_software_name ); + // if we had launched from softlist with a specified part, e.g. "shortname:part" + // we would have recorded the wrong name, so record it again based on software_info + if (m_software_info_ptr && m_software_info_ptr->shortname) + m_err = set_image_filename(m_software_info_ptr->shortname); + + m_from_swlist = TRUE; + } + + if (is_create || filename_has_period) + { + /* determine open plan */ + determine_open_plan(is_create, open_plan); + + /* attempt to open the file in various ways */ + for (i = 0; !m_file && open_plan[i]; i++) + { + /* open the file */ + m_err = load_image_by_path(open_plan[i], path); + if (m_err && (m_err != IMAGE_ERROR_FILENOTFOUND)) + goto done; + } + } + + /* Copy some image information when we have been loaded through a software list */ + if ( m_software_info_ptr ) + { + m_longname = m_software_info_ptr->longname; + m_manufacturer = m_software_info_ptr->publisher; + m_year = m_software_info_ptr->year; + //m_playable = m_software_info_ptr->supported; + } + + /* did we fail to find the file? */ + if (!is_loaded() && !softload) + { + m_err = IMAGE_ERROR_FILENOTFOUND; + goto done; + } + + /* call device load or create */ + m_create_format = create_format; + m_create_args = create_args; + + if (m_init_phase==FALSE) { + m_err = (image_error_t)finish_load(); + if (m_err) + goto done; + } + /* success! */ + +done: + if (m_err!=0) { + if (!m_init_phase) + { + if (device().machine().phase() == MACHINE_PHASE_RUNNING) + popmessage("Error: Unable to %s image '%s': %s\n", is_create ? "create" : "load", path, error()); + else + mame_printf_error("Error: Unable to %s image '%s': %s", is_create ? "create" : "load", path, error()); + } + clear(); + } + else { + /* do we need to reset the CPU? only schedule it if load/create is successful */ + if (device().machine().time() > attotime::zero && is_reset_on_load()) + device().machine().schedule_hard_reset(); + else + { + if (!m_init_phase) + { + if (device().machine().phase() == MACHINE_PHASE_RUNNING) + popmessage("Image '%s' was successfully %s.", path, is_create ? "created" : "loaded"); + else + mame_printf_info("Image '%s' was successfully %s.\n", path, is_create ? "created" : "loaded"); + } + } + } + return m_err ? IMAGE_INIT_FAIL : IMAGE_INIT_PASS; +} + + + +/*------------------------------------------------- + load - load an image into MESS +-------------------------------------------------*/ + +bool device_image_interface::load(const char *path) +{ + return load_internal(path, FALSE, 0, NULL); +} + + +/*------------------------------------------------- + image_finish_load - special call - only use + from core +-------------------------------------------------*/ + +bool device_image_interface::finish_load() +{ + bool err = IMAGE_INIT_PASS; + + if (m_is_loading) + { + image_checkhash(); + + if (m_from_swlist) + call_display_info(); + + if (has_been_created() )// && get_legacy_fct(DEVINFO_FCT_IMAGE_CREATE) != NULL) + { + err = call_create(m_create_format, m_create_args); + if (err) + { + if (!m_err) + m_err = IMAGE_ERROR_UNSPECIFIED; + } + } + else + { + /* using device load */ + err = call_load(); + if (err) + { + if (!m_err) + m_err = IMAGE_ERROR_UNSPECIFIED; + } + } + } + m_is_loading = FALSE; + m_create_format = 0; + m_create_args = NULL; + m_init_phase = FALSE; + return err; +} + +/*------------------------------------------------- + create - create a image +-------------------------------------------------*/ + +bool device_image_interface::create(const char *path, const image_device_format *create_format, option_resolution *create_args) +{ + int format_index = (create_format != NULL) ? create_format->m_index : 0; + return load_internal(path, TRUE, format_index, create_args); +} + + +/*------------------------------------------------- + clear - clear all internal data pertaining + to an image +-------------------------------------------------*/ + +void device_image_interface::clear() +{ + if (m_mame_file) + { + global_free(m_mame_file); + m_mame_file = NULL; + m_file = NULL; + } else { + if (m_file) + { + core_fclose(m_file); + m_file = NULL; + } + } + + m_image_name.reset(); + m_readonly = false; + m_created = false; + + m_longname.reset(); + m_manufacturer.reset(); + m_year.reset(); + m_basename.reset(); + m_basename_noext.reset(); + m_filetype.reset(); + + m_full_software_name = NULL; + m_software_info_ptr = NULL; + m_software_part_ptr = NULL; +} + +/*------------------------------------------------- + unload - main call to unload an image +-------------------------------------------------*/ + +void device_image_interface::unload() +{ + if (is_loaded()) { + call_unload(); + } + clear(); + clear_error(); +} + +/*------------------------------------------------- + update_names - update brief and instance names +-------------------------------------------------*/ + +void device_image_interface::update_names() +{ + const device_image_interface *image = NULL; + int count = 0; + int index = -1; + + for (bool gotone = device().mconfig().devicelist().first(image); gotone; gotone = image->next(image)) + { + if (this == image) + index = count; + if (image->image_type() == image_type()) + count++; + } + if (count > 1) { + m_instance_name.printf("%s%d", device_typename(image_type()), index + 1); + m_brief_instance_name.printf("%s%d", device_brieftypename(image_type()), index + 1); + } + else + { + m_instance_name = device_typename(image_type()); + m_brief_instance_name = device_brieftypename(image_type()); + } +} |