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-rw-r--r--src/emu/diimage.h224
1 files changed, 81 insertions, 143 deletions
diff --git a/src/emu/diimage.h b/src/emu/diimage.h
index 67d20c43402..aa9c991c955 100644
--- a/src/emu/diimage.h
+++ b/src/emu/diimage.h
@@ -17,11 +17,13 @@
#ifndef MAME_EMU_DIIMAGE_H
#define MAME_EMU_DIIMAGE_H
+#include "notifier.h"
#include "utilfwd.h"
#include <memory>
#include <string>
#include <system_error>
+#include <utility>
#include <vector>
@@ -29,39 +31,15 @@
// TYPE DEFINITIONS
//**************************************************************************
-enum iodevice_t
-{
- /* List of all supported devices. Refer to the device by these names only */
- IO_UNKNOWN,
- IO_CARTSLOT, /* 1 - Cartridge Port, as found on most console and on some computers */
- IO_FLOPPY, /* 2 - Floppy Disk unit */
- IO_HARDDISK, /* 3 - Hard Disk unit */
- IO_CYLINDER, /* 4 - Magnetically-Coated Cylinder */
- IO_CASSETTE, /* 5 - Cassette Recorder (common on early home computers) */
- IO_PUNCHCARD, /* 6 - Card Puncher/Reader */
- IO_PUNCHTAPE, /* 7 - Tape Puncher/Reader (reels instead of punchcards) */
- IO_PRINTER, /* 8 - Printer device */
- IO_SERIAL, /* 9 - Generic Serial Port */
- IO_PARALLEL, /* 10 - Generic Parallel Port */
- IO_SNAPSHOT, /* 11 - Complete 'snapshot' of the state of the computer */
- IO_QUICKLOAD, /* 12 - Allow to load program/data into memory, without matching any actual device */
- IO_MEMCARD, /* 13 - Memory card */
- IO_CDROM, /* 14 - optical CD-ROM disc */
- IO_MAGTAPE, /* 15 - Magnetic tape */
- IO_ROM, /* 16 - Individual ROM image - the Amstrad CPC has a few applications that were sold on 16kB ROMs */
- IO_MIDIIN, /* 17 - MIDI In port */
- IO_MIDIOUT, /* 18 - MIDI Out port */
- IO_PICTURE, /* 19 - A single-frame image */
- IO_VIDEO, /* 20 - A video file */
- IO_COUNT /* 21 - Total Number of IO_devices for searching */
-};
-
enum class image_error : int
{
INTERNAL = 1,
UNSUPPORTED,
INVALIDIMAGE,
+ INVALIDLENGTH,
ALREADYOPEN,
+ NOSOFTWARE,
+ BADSOFTWARE,
UNSPECIFIED
};
@@ -69,13 +47,6 @@ const std::error_category &image_category() noexcept;
inline std::error_condition make_error_condition(image_error e) noexcept { return std::error_condition(int(e), image_category()); }
namespace std { template <> struct is_error_condition_enum<image_error> : public std::true_type { }; }
-struct image_device_type_info
-{
- iodevice_t m_type;
- const char *m_name;
- const char *m_shortname;
-};
-
class image_device_format
{
public:
@@ -95,66 +66,56 @@ private:
};
-enum class image_init_result { PASS, FAIL };
-enum class image_verify_result { PASS, FAIL };
-
-//**************************************************************************
-// MACROS
-//**************************************************************************
-
-#define DEVICE_IMAGE_LOAD_MEMBER(_name) image_init_result _name(device_image_interface &image)
-#define DECLARE_DEVICE_IMAGE_LOAD_MEMBER(_name) DEVICE_IMAGE_LOAD_MEMBER(_name)
-
-#define DEVICE_IMAGE_UNLOAD_MEMBER(_name) void _name(device_image_interface &image)
-#define DECLARE_DEVICE_IMAGE_UNLOAD_MEMBER(_name) DEVICE_IMAGE_UNLOAD_MEMBER(_name)
-
-
// ======================> device_image_interface
// class representing interface-specific live image
class device_image_interface : public device_interface
{
public:
- typedef device_delegate<image_init_result (device_image_interface &)> load_delegate;
- typedef device_delegate<void (device_image_interface &)> unload_delegate;
+ enum class media_change_event
+ {
+ LOADED,
+ UNLOADED
+ };
- typedef std::vector<std::unique_ptr<image_device_format>> formatlist_type;
+ using formatlist_type = std::vector<std::unique_ptr<image_device_format> >;
// construction/destruction
device_image_interface(const machine_config &mconfig, device_t &device);
virtual ~device_image_interface();
- static const char *device_typename(iodevice_t type);
- static const char *device_brieftypename(iodevice_t type);
- static iodevice_t device_typeid(const char *name);
-
- virtual image_init_result call_load() { return image_init_result::PASS; }
- virtual image_init_result call_create(int format_type, util::option_resolution *format_options) { return image_init_result::PASS; }
+ virtual std::pair<std::error_condition, std::string> call_load() { return std::make_pair(std::error_condition(), std::string()); }
+ virtual std::pair<std::error_condition, std::string> call_create(int format_type, util::option_resolution *format_options) { return std::make_pair(std::error_condition(), std::string()); }
virtual void call_unload() { }
virtual std::string call_display() { return std::string(); }
virtual u32 unhashed_header_length() const noexcept { return 0; }
virtual bool core_opens_image_file() const noexcept { return true; }
- virtual iodevice_t image_type() const noexcept = 0;
+ virtual bool image_is_chd_type() const noexcept { return false; }
virtual bool is_readable() const noexcept = 0;
virtual bool is_writeable() const noexcept = 0;
virtual bool is_creatable() const noexcept = 0;
- virtual bool must_be_loaded() const noexcept = 0;
virtual bool is_reset_on_load() const noexcept = 0;
- virtual bool support_command_line_image_creation() const noexcept;
+ virtual bool support_command_line_image_creation() const noexcept { return false; }
virtual const char *image_interface() const noexcept { return nullptr; }
virtual const char *file_extensions() const noexcept = 0;
virtual const util::option_guide &create_option_guide() const;
- virtual const char *custom_instance_name() const noexcept { return nullptr; }
- virtual const char *custom_brief_instance_name() const noexcept { return nullptr; }
+ virtual const char *image_type_name() const noexcept = 0;
+ virtual const char *image_brief_type_name() const noexcept = 0;
+
+ // Set block device image regions for arcade systems
+ void add_region(std::string name, bool is_default = false);
+ bool has_preset_images() const;
+ bool has_preset_images_selection() const;
+ std::vector<std::string> preset_images_list() const;
+ int current_preset_image_id() const;
+ void switch_preset_image(int id);
+ chd_file *current_preset_image_chd() const;
+ void check_preset_images();
const image_device_format *device_get_indexed_creatable_format(int index) const noexcept { return (index < m_formatlist.size()) ? m_formatlist.at(index).get() : nullptr; }
- const image_device_format *device_get_named_creatable_format(const std::string &format_name) noexcept;
+ const image_device_format *device_get_named_creatable_format(std::string_view format_name) const noexcept;
const util::option_guide &device_get_creation_option_guide() const { return create_option_guide(); }
- std::string_view error();
- void seterror(std::error_condition err, const char *message);
- void message(const char *format, ...) ATTR_PRINTF(2,3);
-
bool exists() const noexcept { return !m_image_name.empty(); }
// get image file path/name
@@ -165,9 +126,15 @@ public:
bool is_filetype(std::string_view candidate_filetype) const;
bool is_open() const noexcept { return bool(m_file); }
- util::core_file &image_core_file() const noexcept { return *m_file; }
+ util::core_file &image_core_file() const noexcept { assert(is_open()); return *m_file; }
bool is_readonly() const noexcept { return m_readonly; }
+ u32 sequence_counter() const { return m_sequence_counter; } // Increments on media load/unload/etc
+ util::notifier_subscription add_media_change_notifier(delegate<void (media_change_event)> &&n);
+ template <typename T>
+ util::notifier_subscription add_media_change_notifier(T &&n)
+ { return add_media_change_notifier(delegate<void (media_change_event)>(std::forward<T>(n))); }
+
// image file I/O wrappers
// TODO: move away from using these and let implementations use the I/O interface directly
// FIXME: don't swallow errors
@@ -181,15 +148,13 @@ public:
u32 fread(void *buffer, u32 length)
{
check_for_file();
- size_t actual;
- m_file->read(buffer, length, actual);
+ auto const [err, actual] = read(*m_file, buffer, length);
return actual;
}
u32 fwrite(const void *buffer, u32 length)
{
check_for_file();
- size_t actual;
- m_file->write(buffer, length, actual);
+ auto const [err, actual] = write(*m_file, buffer, length);
return actual;
}
std::error_condition fseek(s64 offset, int whence)
@@ -204,32 +169,6 @@ public:
m_file->tell(result);
return result;
}
- int fgetc()
- {
- char ch;
- if (fread(&ch, 1) != 1)
- ch = '\0';
- return ch;
- }
- char *fgets(char *buffer, u32 length)
- {
- check_for_file();
- return m_file->gets(buffer, length);
- }
- bool image_feof()
- {
- check_for_file();
- return m_file->eof();
- }
- const void *ptr()
- {
- check_for_file();
- return m_file->buffer();
- }
-
- // allocate and read into buffers
- u32 fread(std::unique_ptr<u8 []> &ptr, u32 length) { ptr = std::make_unique<u8 []>(length); return fread(ptr.get(), length); }
- u32 fread(std::unique_ptr<u8 []> &ptr, u32 length, offs_t offset) { ptr = std::make_unique<u8 []>(length); return fread(ptr.get() + offset, length - offset); }
// access to software list item information
const software_info *software_entry() const noexcept;
@@ -243,67 +182,62 @@ public:
const std::string &working_directory() const { return m_working_directory; }
// access to software list properties and ROM data areas
- u8 *get_software_region(const char *tag);
- u32 get_software_region_length(const char *tag);
- const char *get_feature(const char *feature_name) const;
- bool load_software_region(const char *tag, std::unique_ptr<u8[]> &ptr);
+ u8 *get_software_region(std::string_view tag);
+ u32 get_software_region_length(std::string_view tag);
+ const char *get_feature(std::string_view feature_name) const;
+ std::error_condition load_software_region(std::string_view tag, std::unique_ptr<u8[]> &ptr);
u32 crc();
- util::hash_collection& hash() { return m_hash; }
- util::hash_collection calculate_hash_on_file(util::core_file &file) const;
+ util::hash_collection &hash() { return m_hash; }
+ util::hash_collection calculate_hash_on_file(util::random_read &file) const;
void battery_load(void *buffer, int length, int fill);
void battery_load(void *buffer, int length, const void *def_buffer);
void battery_save(const void *buffer, int length);
- const char *image_type_name() const { return device_typename(image_type()); }
-
const std::string &instance_name() const { return m_instance_name; }
const std::string &brief_instance_name() const { return m_brief_instance_name; }
const std::string &canonical_instance_name() const { return m_canonical_instance_name; }
- bool uses_file_extension(const char *file_extension) const;
const formatlist_type &formatlist() const { return m_formatlist; }
// loads an image file
- image_init_result load(std::string_view path);
+ std::pair<std::error_condition, std::string> load(std::string_view path);
// loads a softlist item by name
- image_init_result load_software(std::string_view software_identifier);
+ std::pair<std::error_condition, std::string> load_software(std::string_view software_identifier);
- image_init_result finish_load();
+ std::pair<std::error_condition, std::string> finish_load();
void unload();
- image_init_result create(std::string_view path, const image_device_format *create_format, util::option_resolution *create_args);
- image_init_result create(std::string_view path);
- bool load_software(software_list_device &swlist, std::string_view swname, const rom_entry *entry);
+ std::pair<std::error_condition, std::string> create(std::string_view path, const image_device_format *create_format, util::option_resolution *create_args);
+ std::pair<std::error_condition, std::string> create(std::string_view path);
+ std::error_condition load_software(software_list_device &swlist, std::string_view swname, const rom_entry *entry);
std::error_condition reopen_for_write(std::string_view path);
- void set_user_loadable(bool user_loadable) { m_user_loadable = user_loadable; }
+ void set_user_loadable(bool user_loadable) noexcept { m_user_loadable = user_loadable; }
+ void set_must_be_loaded(bool must_be_loaded) noexcept { m_must_be_loaded = must_be_loaded; }
bool user_loadable() const noexcept { return m_user_loadable; }
+ bool must_be_loaded() const noexcept { return m_must_be_loaded; }
bool is_reset_and_loading() const noexcept { return m_is_reset_and_loading; }
const std::string &full_software_name() const noexcept { return m_full_software_name; }
protected:
- // interface-level overrides
+ // device_interface implementation
virtual void interface_config_complete() override;
virtual const software_list_loader &get_software_list_loader() const;
- virtual const bool use_software_list_file_extension_for_filetype() const { return false; }
+ virtual bool use_software_list_file_extension_for_filetype() const noexcept { return false; }
- image_init_result load_internal(std::string_view path, bool is_create, int create_format, util::option_resolution *create_args);
std::error_condition load_image_by_path(u32 open_flags, std::string_view path);
- void clear();
- bool is_loaded() const { return m_file != nullptr; }
+ bool is_loaded() const noexcept { return m_file != nullptr; }
- void set_image_filename(std::string_view filename);
-
- void clear_error();
+ void set_image_tag();
void check_for_file() const { if (!m_file) throw emu_fatalerror("%s(%s): Illegal operation on unmounted image", device().shortname(), device().tag()); }
void make_readonly() noexcept { m_readonly = true; }
- bool image_checkhash();
+ std::error_condition image_checkhash();
const software_part *find_software_item(std::string_view identifier, bool restrict_to_interface, software_list_device **device = nullptr) const;
std::string software_get_default_slot(std::string_view default_card_slot) const;
@@ -311,17 +245,21 @@ protected:
void add_format(std::unique_ptr<image_device_format> &&format);
void add_format(std::string &&name, std::string &&description, std::string &&extensions, std::string &&optspec);
- // derived class overrides
+private:
+ std::vector<u32> determine_open_plan(bool is_create);
+ void update_names();
+ void set_image_filename(std::string_view filename);
+ void clear() noexcept;
+ std::pair<std::error_condition, std::string> load_internal(std::string_view path, bool is_create, int create_format, util::option_resolution *create_args);
+ std::error_condition load_software_part(std::string_view identifier);
- // configuration
- static const image_device_type_info *find_device_type(iodevice_t type);
- static const image_device_type_info m_device_info_array[];
+ bool init_phase() const;
+ static std::error_condition run_hash(util::random_read &file, u32 skip_bytes, util::hash_collection &hashes, const char *types);
- // error related info
- std::error_condition m_err;
- std::string m_err_message;
+ // loads an image or software items and resets - called internally when we
+ // load an is_reset_on_load() item
+ void reset_and_load(std::string_view path);
-private:
// variables that are only non-zero when an image is mounted
util::core_file::ptr m_file;
std::unique_ptr<emu_file> m_mame_file;
@@ -330,29 +268,27 @@ private:
std::string m_basename_noext;
std::string m_filetype;
+ // preset images regions
+ std::vector<std::string> m_possible_preset_regions;
+ std::vector<chd_file *> m_preset_images;
+ int m_default_region, m_current_region;
+
// Software information
std::string m_full_software_name;
const software_part *m_software_part_ptr;
std::string m_software_list_name;
- std::vector<u32> determine_open_plan(bool is_create);
- void update_names();
- bool load_software_part(std::string_view identifier);
-
- bool init_phase() const;
- static bool run_hash(util::core_file &file, u32 skip_bytes, util::hash_collection &hashes, const char *types);
-
- // loads an image or software items and resets - called internally when we
- // load an is_reset_on_load() item
- void reset_and_load(std::string_view path);
-
// creation info
formatlist_type m_formatlist;
// working directory; persists across mounts
std::string m_working_directory;
+ // to notify interested parties when media changes
+ util::notifier<media_change_event> m_media_change_notifier;
+
// flags
+ u32 m_sequence_counter;
bool m_readonly;
bool m_created;
@@ -370,6 +306,8 @@ private:
// we want to disable command line cart loading...
bool m_user_loadable;
+ bool m_must_be_loaded;
+
bool m_is_loading;
bool m_is_reset_and_loading;
@@ -378,4 +316,4 @@ private:
// iterator
typedef device_interface_enumerator<device_image_interface> image_interface_enumerator;
-#endif /* MAME_EMU_DIIMAGE_H */
+#endif // MAME_EMU_DIIMAGE_H