Adding ability to support other types of software lists, so floppies, cassettes, cd-roms are now possible to be used [Miodrag Milanovic]

src/emu/devimage.c

@@ -39,6 +39,7 @@
 
 
 #include "emu.h"
+#include "emuopts.h"
 #include "devlegcy.h"
 #include "hashfile.h"
 #include "zippath.h"
@@ -214,7 +215,7 @@ legacy_image_device_base::legacy_image_device_base(running_machine &machine, con
 
 bool legacy_image_device_base::is_loaded()
 {
-    return (m_file != NULL) || (m_software_info_ptr != NULL);
+    return (m_file != NULL);
 }
 
 /*-------------------------------------------------
@@ -294,6 +295,50 @@ void legacy_image_device_base::determine_open_plan(int is_create, UINT32 *open_p
     open_plan[i] = 0;
 }
 
+/*-------------------------------------------------
+    load_software - software image loading
+-------------------------------------------------*/
+bool legacy_image_device_base::load_software(char *swlist, char *swname, rom_entry *start)
+{
+	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))
+			{
+				UINT32 crc = 0;
+				UINT8 crcbytes[4];
+				file_error filerr;
+				
+				bool has_crc = hash_data_extract_binary_checksum(ROM_GETHASHDATA(romp), HASH_CRC, crcbytes);
+				if (has_crc)
+					crc = (crcbytes[0] << 24) | (crcbytes[1] << 16) | (crcbytes[2] << 8) | crcbytes[3];
+					
+				astring fname(swlist, PATH_SEPARATOR, swname, PATH_SEPARATOR, ROM_GETNAME(romp));
+				if (has_crc)
+					filerr = mame_fopen_crc(SEARCHPATH_ROM, fname, crc, OPEN_FLAG_READ, &m_mame_file);
+				else
+					filerr = mame_fopen(SEARCHPATH_ROM, fname, OPEN_FLAG_READ, &m_mame_file);
+					
+				if (filerr == FILERR_NONE)
+				{
+					m_file = mame_core_file(m_mame_file);
+					retVal = TRUE;
+				}
+				break; // load first item for start
+			}
+			romp++;	/* something else; skip */
+		}
+	}
+	return retVal;
+}
+
 /*-------------------------------------------------
     load_internal - core image loading
 -------------------------------------------------*/
@@ -320,7 +365,8 @@ bool legacy_image_device_base::load_internal(const char *path, bool is_create, i
         goto done;
 
 	/* Check if there's a software list defined for this device and use that if we're not creating an image */
-	if (is_create || !(softload=load_software_part( this, path, &m_software_info_ptr, &m_software_part_ptr, &m_full_software_name )) )
+	softload = load_software_part( this, path, &m_software_info_ptr, &m_software_part_ptr, &m_full_software_name );
+	if (is_create || (!softload  && m_software_info_ptr==NULL))
 	{
 		/* determine open plan */
 		determine_open_plan(is_create, open_plan);
@@ -461,11 +507,18 @@ bool legacy_image_device_base::create(const char *path, const image_device_forma
 
 void legacy_image_device_base::clear()
 {
-	if (m_file)
+	if (m_mame_file)
     {
-        core_fclose(m_file);
-        m_file = NULL;
-    }
+		mame_fclose(m_mame_file);
+		m_mame_file = NULL;
+		m_file = NULL;
+	} else {
+		if (m_file)
+		{
+			core_fclose(m_file);
+			m_file = NULL;
+		}
+	}
 
     m_name.reset();
     m_writeable = FALSE;
@@ -549,4 +602,4 @@ void legacy_image_device_base::call_get_devices()
 void *legacy_image_device_base::get_device_specific_call()
 {
 	return (void*) m_config.get_legacy_config_fct(DEVINFO_FCT_DEVICE_SPECIFIC);
-}
+}

src/emu/devlegcy.h

@@ -632,6 +632,7 @@ public:
 	virtual bool finish_load();
 	virtual void unload();
 	virtual bool create(const char *path, const image_device_format *create_format, option_resolution *create_args);
+	virtual bool load_software(char *swlist, char *swname, rom_entry *entry);
 
 	virtual int call_load();
 	virtual bool call_softlist_load(char *swlist, char *swname, rom_entry *start_entry);

src/emu/diimage.c

@@ -177,6 +177,7 @@ device_image_interface::device_image_interface(running_machine &machine, const d
 	: device_interface(machine, config, device),
 	  m_image_config(dynamic_cast<const device_config_image_interface &>(config)),
 	  m_file(NULL),
+	  m_mame_file(NULL),
 	  m_full_software_name(NULL),
 	  m_software_info_ptr(NULL),
 	  m_software_part_ptr(NULL),

src/emu/diimage.h

@@ -200,6 +200,7 @@ public:
 	virtual bool load(const char *path) = 0;
 	virtual bool finish_load() = 0;
 	virtual void unload() = 0;
+	virtual bool load_software(char *swlist, char *swname, rom_entry *entry) = 0;
 
 	virtual int call_load() = 0;
 	virtual bool call_softlist_load(char *swlist, char *swname, rom_entry *start_entry) = 0;
@@ -293,6 +294,7 @@ protected:
 
     /* variables that are only non-zero when an image is mounted */
 	core_file *m_file;
+	mame_file *m_mame_file;
 	astring m_name;
 	astring m_basename;
 	astring m_basename_noext;