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- Added void state_save_combine_module_and_tag(char *dest, const char *module, const char *tag);

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Its purpose is to create a unique name for state saving purposes in modules that are tag based (no index)

- Updated MC6845 to make use of this
This commit is contained in:
Zsolt Vasvari 2008-02-21 12:00:00 +00:00
parent 0ab1b992b7
commit e619861862
3 changed files with 72 additions and 16 deletions
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47
src/emu/state.c
View File

@ -946,6 +946,53 @@ const char *state_save_get_indexed_item(int index, void **base, UINT32 *valsize,
}
/*-------------------------------------------------
state_save_combine_module_and_tag - creates
a name from a given module and tag that can
be used as the first agrument to the
state_save_register_item family of functions
-------------------------------------------------*/
void state_save_combine_module_and_tag(char *dest, const char *module, const char *tag)
{
astring *module_lower;
astring *tag_lower;
astring *combined;
/* validate arguments */
assert(dest != NULL);
assert(module != NULL);
assert(tag != NULL);
assert(strlen(module) > 0);
assert(strlen(tag) > 0);
/* allocate objects */
module_lower = astring_alloc();
tag_lower = astring_alloc();
combined = astring_alloc();
/* convert both arguments to lower case for case insenstive comparisson */
astring_tolower(astring_cpyc(module_lower, module));
astring_tolower(astring_cpyc(tag_lower, tag));
/* if the tag contains the module name, just use the tag as the combined name */
if (astring_find(tag_lower, 0, module_lower) >= 0)
astring_cpyc(combined, tag);
/* otherwise combine the module and the tag */
else
astring_assemble_3(combined, module, ".", tag);
/* copy the result to the destination array */
strcpy(dest, astring_c(combined));
/* free the objects */
astring_free(module_lower);
astring_free(tag_lower);
astring_free(combined);
}
/*-------------------------------------------------
state_save_dump_registry - dump the registry
to the logfile

3
src/emu/state.h
View File

@ -111,6 +111,9 @@ void state_save_load_continue(void);
void state_save_save_finish(void);
void state_save_load_finish(void);
/* Helper function for creating a unique name */
void state_save_combine_module_and_tag(char *dest, const char *module, const char *tag);
/* Display function */
void state_save_dump_registry(void);

38
src/emu/video/mc6845.c
View File

@ -413,8 +413,12 @@ void mc6845_update(mc6845_t *mc6845, mame_bitmap *bitmap, const rectangle *clipr
static void *mc6845_start(running_machine *machine, const char *tag, const void *static_config, const void *inline_config)
{
mc6845_t *mc6845;
char unique_tag[30];
/* validate arguments */
assert(machine != NULL);
assert(tag != NULL);
assert(strlen(tag) < 20);
/* allocate the object that holds the state */
mc6845 = auto_malloc(sizeof(*mc6845));
@ -429,24 +433,26 @@ static void *mc6845_start(running_machine *machine, const char *tag, const void
mc6845->display_enable_changed_timer = timer_alloc(display_enable_changed_timer_cb, mc6845);
/* register for state saving */
state_save_combine_module_and_tag(unique_tag, "mc6845", tag);
state_save_register_func_postload_ptr(mc6845_state_save_postload, mc6845);
state_save_register_item("mc6845", 0, mc6845->address_latch);
state_save_register_item("mc6845", 0, mc6845->horiz_total);
state_save_register_item("mc6845", 0, mc6845->horiz_disp);
state_save_register_item("mc6845", 0, mc6845->horiz_sync_pos);
state_save_register_item("mc6845", 0, mc6845->sync_width);
state_save_register_item("mc6845", 0, mc6845->vert_total);
state_save_register_item("mc6845", 0, mc6845->vert_total_adj);
state_save_register_item("mc6845", 0, mc6845->vert_disp);
state_save_register_item("mc6845", 0, mc6845->vert_sync_pos);
state_save_register_item("mc6845", 0, mc6845->intl_skew);
state_save_register_item("mc6845", 0, mc6845->max_ras_addr);
state_save_register_item("mc6845", 0, mc6845->cursor_start_ras);
state_save_register_item("mc6845", 0, mc6845->cursor_end_ras);
state_save_register_item("mc6845", 0, mc6845->start_addr);
state_save_register_item("mc6845", 0, mc6845->cursor);
state_save_register_item("mc6845", 0, mc6845->light_pen);
state_save_register_item(unique_tag, 0, mc6845->address_latch);
state_save_register_item(unique_tag, 0, mc6845->horiz_total);
state_save_register_item(unique_tag, 0, mc6845->horiz_disp);
state_save_register_item(unique_tag, 0, mc6845->horiz_sync_pos);
state_save_register_item(unique_tag, 0, mc6845->sync_width);
state_save_register_item(unique_tag, 0, mc6845->vert_total);
state_save_register_item(unique_tag, 0, mc6845->vert_total_adj);
state_save_register_item(unique_tag, 0, mc6845->vert_disp);
state_save_register_item(unique_tag, 0, mc6845->vert_sync_pos);
state_save_register_item(unique_tag, 0, mc6845->intl_skew);
state_save_register_item(unique_tag, 0, mc6845->max_ras_addr);
state_save_register_item(unique_tag, 0, mc6845->cursor_start_ras);
state_save_register_item(unique_tag, 0, mc6845->cursor_end_ras);
state_save_register_item(unique_tag, 0, mc6845->start_addr);
state_save_register_item(unique_tag, 0, mc6845->cursor);
state_save_register_item(unique_tag, 0, mc6845->light_pen);
return mc6845;
}