summaryrefslogtreecommitdiffstatshomepage
path: root/src/emu/state.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/emu/state.h')
-rw-r--r--src/emu/state.h119
1 files changed, 119 insertions, 0 deletions
diff --git a/src/emu/state.h b/src/emu/state.h
new file mode 100644
index 00000000000..0f4b3b5f7cb
--- /dev/null
+++ b/src/emu/state.h
@@ -0,0 +1,119 @@
+/***************************************************************************
+
+ state.h
+
+ Save state management functions.
+
+ Copyright (c) 1996-2007, Nicola Salmoria and the MAME Team.
+ Visit http://mamedev.org for licensing and usage restrictions.
+
+***************************************************************************/
+
+#pragma once
+
+#ifndef __STATE_H__
+#define __STATE_H__
+
+#include "mamecore.h"
+
+
+
+/***************************************************************************
+ MACROS
+***************************************************************************/
+
+#define IS_COMPATIBLE_TYPE(_valtype, _checktype) \
+ (sizeof(_valtype) == sizeof(_checktype) && TYPES_COMPATIBLE(typeof(_valtype), _checktype))
+
+#define IS_VALID_SAVE_TYPE(_valtype) \
+ (IS_COMPATIBLE_TYPE(_valtype, double) || IS_COMPATIBLE_TYPE(_valtype, float) || \
+ IS_COMPATIBLE_TYPE(_valtype, INT64) || IS_COMPATIBLE_TYPE(_valtype, UINT64) || \
+ IS_COMPATIBLE_TYPE(_valtype, INT32) || IS_COMPATIBLE_TYPE(_valtype, UINT32) || \
+ IS_COMPATIBLE_TYPE(_valtype, INT16) || IS_COMPATIBLE_TYPE(_valtype, UINT16) || \
+ IS_COMPATIBLE_TYPE(_valtype, INT8) || IS_COMPATIBLE_TYPE(_valtype, UINT8) || \
+ IS_COMPATIBLE_TYPE(_valtype, PAIR) || IS_COMPATIBLE_TYPE(_valtype, PAIR64))
+
+#define state_save_register_generic(_mod, _inst, _name, _val, _valsize, _count) \
+do { \
+ assert_always(IS_VALID_SAVE_TYPE(_valsize), "Invalid data type supplied for state saving.");\
+ state_save_register_memory(_mod, _inst, _name, _val, sizeof(_valsize), _count); \
+} while (0)
+
+#define state_save_register_item(_mod, _inst, _val) \
+ state_save_register_generic(_mod, _inst, #_val, &_val, _val, 1)
+
+#define state_save_register_item_pointer(_mod, _inst, _val, _count) \
+ state_save_register_generic(_mod, _inst, #_val, &_val[0], _val[0], _count)
+
+#define state_save_register_item_array(_mod, _inst, _val) \
+ state_save_register_item_pointer(_mod, _inst, _val, sizeof(_val)/sizeof(_val[0]))
+
+#define state_save_register_item_2d_array(_mod, _inst, _val) \
+ state_save_register_item_pointer(_mod, _inst, _val[0], sizeof(_val)/sizeof(_val[0][0]))
+
+#define state_save_register_global(_val) \
+ state_save_register_item("globals", 0, _val)
+
+#define state_save_register_global_pointer(_val, _count) \
+ state_save_register_item_pointer("globals", 0, _val, _count)
+
+#define state_save_register_global_array(_val) \
+ state_save_register_item_array("globals", 0, _val)
+
+#define state_save_register_global_2d_array(_val) \
+ state_save_register_item_2d_array("globals", 0, _val)
+
+#define state_save_register_global_bitmap(_val) \
+ state_save_register_bitmap("globals", 0, #_val, _val)
+
+
+
+/***************************************************************************
+ FUNCTION PROTOTYPES
+***************************************************************************/
+
+void state_init(running_machine *machine);
+
+/* Initializes the save state registrations */
+void state_destructor(void *ptr, size_t size);
+void state_save_allow_registration(int allowed);
+int state_save_registration_allowed(void);
+
+/* Registering functions */
+int state_save_get_reg_count(void);
+
+void state_save_register_memory(const char *module, UINT32 instance, const char *name, void *val, UINT32 valsize, UINT32 valcount);
+void state_save_register_bitmap(const char *module, UINT32 instance, const char *name, mame_bitmap *val);
+
+void state_save_register_func_presave(void (*func)(void));
+void state_save_register_func_postload(void (*func)(void));
+
+void state_save_register_func_presave_int(void (*func)(int), int param);
+void state_save_register_func_postload_int(void (*func)(int), int param);
+
+void state_save_register_func_presave_ptr(void (*func)(void *), void *param);
+void state_save_register_func_postload_ptr(void (*func)(void *), void *param);
+
+/* Save and load functions */
+/* The tags are a hack around the current cpu structures */
+int state_save_save_begin(mame_file *file);
+int state_save_load_begin(mame_file *file);
+
+void state_save_push_tag(int tag);
+void state_save_pop_tag(void);
+
+void state_save_save_continue(void);
+void state_save_load_continue(void);
+
+void state_save_save_finish(void);
+void state_save_load_finish(void);
+
+/* Display function */
+void state_save_dump_registry(void);
+
+const char *state_save_get_indexed_item(int index, void **base, UINT32 *valsize, UINT32 *valcount);
+
+/* Verification function; can be called from front ends */
+int state_save_check_file(mame_file *file, const char *gamename, int validate_signature, void (CLIB_DECL *errormsg)(const char *fmt, ...));
+
+#endif /* __STATE_H__ */