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author Aaron Giles <aaron@aarongiles.com>2011-04-13 20:31:00 +0000
committer Aaron Giles <aaron@aarongiles.com>2011-04-13 20:31:00 +0000
commit00d745ca7752d2f96e842a7f23e157c0d2c40bdf (patch)
tree9b6a3dcda7d0ff05b098fe0823fe4d09f6d0e6b4 /src/emu/driver.c
parentf99e1a5da63f996cd07fae98d42c2e5ff389adef (diff)
(Big tangle of changes that all happened as I was looking into the ROM
loader rewrite, which is still in progress....) Replaced mamedriv.c with a new driver list mechanism that is generated by the build tools. The emulator core now expects the presence of a file called src/$(TARGET)/$(SUBTARGET).lst which is just a raw list of driver names, one per line. C and C++ comments are still permitted. This file is parsed by a new build tool makelist which extracts the driver names, sorts them, and generates a file called drivlist.c, which is consumed by the core. [Aaron Giles] Added new osdcore function osd_malloc_array() which is identical to osd_malloc() but obviously hints that the underlying allocation is for an array. Updated all callers to use the appropriate form. Modified the Windows allocator to only use guard pages for array-style allocations, allowing us to enable them once again in debug builds. [Aaron Giles] Created new static class driver_list to wrap accesses to the list of available drivers. Improved speed of driver lookups by relying on the presorting done by makelist. [Aaron Giles] Created helper class driver_enumerator as a helper for iterating through the list of drivers. This class supports basic filtering and iteration, and also serves as a temporary cache of machine_configs. [Aaron Giles] Created cli_frontend object to wrap all the CLI handling code in clifront.c. Updated/simplified all the code to take advantage of the driver_enumerator. [Aaron Giles] Created media_auditor object to wrap all the auditing functions in audit.c. Updated all users to the new interface. Note that the new auditing mechanism is slightly out of sync with the romload code in terms of finding ROMs owned by devices, so it may mis-report some issues until the new ROM loading code is in. [Aaron Giles] Added concept of a per-device searchpath. For most devices, their searchpath is just the short name of the device. For driver_devices, the searchpath is driver[;parent[;bios]]. This searchpath will eventually be used by the rom loader to find ROMs. For now it is used by the media auditor only. [Aaron Giles] Created info_xml_creator object to wrap all the info generation functions in info.c. Converted the file to C++ and cleaned up the input processing code. [Aaron Giles] (not for whatsnew ... Known issues: auditing of CHDs appears busted, and debug builds report unfreed memory if you use the built-in game picker)
Diffstat (limited to 'src/emu/driver.c')
-rw-r--r--src/emu/driver.c482
1 files changed, 289 insertions, 193 deletions
diff --git a/src/emu/driver.c b/src/emu/driver.c
index 582d643168c..d39633d649a 100644
--- a/src/emu/driver.c
+++ b/src/emu/driver.c
@@ -2,10 +2,38 @@
driver.c
- Driver construction helpers.
-
- Copyright Nicola Salmoria and the MAME Team.
- Visit http://mamedev.org for licensing and usage restrictions.
+ Driver enumeration helpers.
+
+****************************************************************************
+
+ Copyright Aaron Giles
+ 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.
***************************************************************************/
@@ -14,264 +42,332 @@
-/***************************************************************************
- CONSTANTS
-***************************************************************************/
-
-#define DRIVER_LRU_SIZE 10
+//**************************************************************************
+// DRIVER LIST
+//**************************************************************************
+//-------------------------------------------------
+// driver_list - constructor
+//-------------------------------------------------
+driver_list::driver_list()
+{
+}
-/***************************************************************************
- GLOBAL VARIABLES
-***************************************************************************/
-static int driver_lru[DRIVER_LRU_SIZE];
+//-------------------------------------------------
+// find - find a driver by name
+//-------------------------------------------------
+int driver_list::find(const char *name)
+{
+ // if no name, bail
+ if (name == NULL)
+ return -1;
+
+ // create a dummy item for comparison purposes
+ game_driver driver;
+ driver.name = name;
+ game_driver *driverptr = &driver;
+
+ // binary search to find it
+ const game_driver **result = reinterpret_cast<const game_driver **>(bsearch(&driverptr, s_drivers_sorted, s_driver_count, sizeof(*s_drivers_sorted), driver_sort_callback));
+ return (result == NULL) ? -1 : result - s_drivers_sorted;
+}
-/***************************************************************************
- FUNCTION PROTOTYPES
-***************************************************************************/
+//-------------------------------------------------
+// driver_sort_callback - compare two items in
+// an array of game_driver pointers
+//-------------------------------------------------
-static int penalty_compare(const char *source, const char *target);
+int driver_list::driver_sort_callback(const void *elem1, const void *elem2)
+{
+ const game_driver * const *item1 = reinterpret_cast<const game_driver * const *>(elem1);
+ const game_driver * const *item2 = reinterpret_cast<const game_driver * const *>(elem2);
+ return mame_stricmp((*item1)->name, (*item2)->name);
+}
+//-------------------------------------------------
+// penalty_compare - compare two strings for
+// closeness and assign a score.
+//-------------------------------------------------
-/***************************************************************************
- MISC FUNCTIONS
-***************************************************************************/
+int driver_list::penalty_compare(const char *source, const char *target)
+{
+ int gaps = 1;
+ bool last = true;
-/*-------------------------------------------------
- driver_get_name - return a pointer to a
- driver given its name
--------------------------------------------------*/
+ // scan the strings
+ for ( ; *source && *target; target++)
+ {
+ // do a case insensitive match
+ bool match = (tolower((UINT8)*source) == tolower((UINT8)*target));
-const game_driver *driver_get_name(const char *name)
-{
- int lurnum, drvnum;
+ // if we matched, advance the source
+ if (match)
+ source++;
- /* scan the LRU list first */
- for (lurnum = 0; lurnum < DRIVER_LRU_SIZE; lurnum++)
- if (mame_stricmp(drivers[driver_lru[lurnum]]->name, name) == 0)
+ // if the match state changed, count gaps
+ if (match != last)
{
- /* if not first, swap with the head */
- if (lurnum != 0)
- {
- int temp = driver_lru[0];
- driver_lru[0] = driver_lru[lurnum];
- driver_lru[lurnum] = temp;
- }
- return drivers[driver_lru[0]];
+ last = match;
+ if (!match)
+ gaps++;
}
+ }
- /* scan for a match in the drivers -- slow! */
- for (drvnum = 0; drivers[drvnum] != NULL; drvnum++)
- if (mame_stricmp(drivers[drvnum]->name, name) == 0)
- {
- memmove((void *)&driver_lru[1], (void *)&driver_lru[0], sizeof(driver_lru[0]) * (DRIVER_LRU_SIZE - 1));
- driver_lru[0] = drvnum;
- return drivers[drvnum];
- }
+ // penalty if short string does not completely fit in
+ for ( ; *source; source++)
+ gaps++;
+
+ // if we matched perfectly, gaps == 0
+ if (gaps == 1 && *source == 0 && *target == 0)
+ gaps = 0;
- return NULL;
+ return gaps;
}
-/*-------------------------------------------------
- driver_get_clone - return a pointer to the
- clone of a game driver.
--------------------------------------------------*/
-const game_driver *driver_get_clone(const game_driver *driver)
-{
- /* if no clone, easy out */
- if (driver->parent == NULL || (driver->parent[0] == '0' && driver->parent[1] == 0))
- return NULL;
+//**************************************************************************
+// DRIVER ENUMERATOR
+//**************************************************************************
- /* convert the name to a game_driver */
- return driver_get_name(driver->parent);
+//-------------------------------------------------
+// driver_enumerator - constructor
+//-------------------------------------------------
+
+driver_enumerator::driver_enumerator(emu_options &options)
+ : m_current(-1),
+ m_filtered_count(0),
+ m_options(options),
+ m_included(global_alloc_array(UINT8, s_driver_count)),
+ m_config(global_alloc_array_clear(machine_config *, s_driver_count))
+{
+ include_all();
}
-/*-------------------------------------------------
- driver_get_searchpath - return a search path
- for a given driver
--------------------------------------------------*/
+driver_enumerator::driver_enumerator(emu_options &options, const char *string)
+ : m_current(-1),
+ m_filtered_count(0),
+ m_options(options),
+ m_included(global_alloc_array(UINT8, s_driver_count)),
+ m_config(global_alloc_array_clear(machine_config *, s_driver_count))
+{
+ filter(string);
+}
+
-const char *driver_get_searchpath(const game_driver &driver, astring &string)
+driver_enumerator::driver_enumerator(emu_options &options, const game_driver &driver)
+ : m_current(-1),
+ m_filtered_count(0),
+ m_options(options),
+ m_included(global_alloc_array(UINT8, s_driver_count)),
+ m_config(global_alloc_array_clear(machine_config *, s_driver_count))
{
- // create the search path consisting of gamedrv[;parent[;...]]
- string = driver.name;
- for (const game_driver *parent = driver_get_clone(&driver); parent != NULL; parent = driver_get_clone(parent))
- string.cat(";").cat(parent->name);
- return string;
+ filter(driver);
}
-/*-------------------------------------------------
- driver_list_get_approx_matches - find the best
- n matches to a driver name.
--------------------------------------------------*/
+//-------------------------------------------------
+// ~driver_enumerator - destructor
+//-------------------------------------------------
-void driver_list_get_approx_matches(const game_driver * const driverlist[], const char *name, int matches, const game_driver **list)
+driver_enumerator::~driver_enumerator()
{
-#undef rand
+ // free any configs
+ for (int index = 0; index < s_driver_count; index++)
+ global_free(m_config[index]);
- int matchnum, drvnum;
- int *penalty;
+ // free the arrays
+ global_free(m_included);
+ global_free(m_config);
+}
- /* if no name, pick random entries */
- if (name == NULL || name[0] == 0)
- {
- const game_driver **templist;
- int driver_count;
- int shufnum;
- /* allocate a temporary list */
- templist = global_alloc_array(const game_driver *, driver_list_get_count(driverlist));
+//-------------------------------------------------
+// config - return a machine_config for the given
+// driver, allocating on demand if needed
+//-------------------------------------------------
- /* build up a list of valid entries */
- for (drvnum = driver_count = 0; driverlist[drvnum] != NULL; drvnum++)
- if ((driverlist[drvnum]->flags & GAME_NO_STANDALONE) == 0)
- templist[driver_count++] = driverlist[drvnum];
+machine_config &driver_enumerator::config(int index) const
+{
+ assert(index >= 0 && index < s_driver_count);
+ if (m_config[index] == NULL)
+ m_config[index] = global_alloc(machine_config(*s_drivers_sorted[index], m_options));
+ return *m_config[index];
+}
- /* seed the RNG first */
- srand(osd_ticks());
- /* shuffle */
- for (shufnum = 0; shufnum < 4 * driver_count; shufnum++)
- {
- int item1 = rand() % driver_count;
- int item2 = rand() % driver_count;
- const game_driver *temp;
+//-------------------------------------------------
+// filter - filter the driver list against the
+// given string
+//-------------------------------------------------
- temp = templist[item1];
- templist[item1] = templist[item2];
- templist[item2] = temp;
- }
+int driver_enumerator::filter(const char *filterstring)
+{
+ // reset the count
+ exclude_all();
+
+ // match name against each driver in the list
+ for (int index = 0; index < s_driver_count; index++)
+ if (matches(filterstring, s_drivers_sorted[index]->name))
+ include(index);
+
+ return m_filtered_count;
+}
- /* copy out the first few entries */
- for (matchnum = 0; matchnum < matches; matchnum++)
- list[matchnum] = templist[matchnum % driver_count];
- global_free(templist);
- return;
- }
+//-------------------------------------------------
+// filter - filter the driver list against the
+// given driver
+//-------------------------------------------------
- /* allocate some temp memory */
- penalty = global_alloc_array(int, matches);
+int driver_enumerator::filter(const game_driver &driver)
+{
+ // reset the count
+ exclude_all();
+
+ // match name against each driver in the list
+ for (int index = 0; index < s_driver_count; index++)
+ if (s_drivers_sorted[index] == &driver)
+ include(index);
+
+ return m_filtered_count;
+}
- /* initialize everyone's states */
- for (matchnum = 0; matchnum < matches; matchnum++)
- {
- penalty[matchnum] = 9999;
- list[matchnum] = NULL;
- }
- /* scan the entire drivers array */
- for (drvnum = 0; driverlist[drvnum] != NULL; drvnum++)
+//-------------------------------------------------
+// next - get the next driver matching the given
+// filter
+//-------------------------------------------------
+
+bool driver_enumerator::next()
+{
+ // always advance one
+ m_current++;
+
+ // if we have a filter, scan forward to the next match
+ while (m_current < s_driver_count)
{
- int curpenalty, tmp;
+ if (m_included[m_current])
+ break;
+ m_current++;
+ }
- /* skip things that can't run */
- if ((driverlist[drvnum]->flags & GAME_NO_STANDALONE) != 0)
- continue;
+ // return true if we end up in range
+ return (m_current >= 0 && m_current < s_driver_count);
+}
- /* pick the best match between driver name and description */
- curpenalty = penalty_compare(name, driverlist[drvnum]->description);
- tmp = penalty_compare(name, driverlist[drvnum]->name);
- curpenalty = MIN(curpenalty, tmp);
- /* insert into the sorted table of matches */
- for (matchnum = matches - 1; matchnum >= 0; matchnum--)
- {
- /* stop if we're worse than the current entry */
- if (curpenalty >= penalty[matchnum])
- break;
+//-------------------------------------------------
+// next_excluded - get the next driver that is
+// not currently included in the list
+//-------------------------------------------------
- /* as lng as this isn't the last entry, bump this one down */
- if (matchnum < matches - 1)
- {
- penalty[matchnum + 1] = penalty[matchnum];
- list[matchnum + 1] = list[matchnum];
- }
- list[matchnum] = driverlist[drvnum];
- penalty[matchnum] = curpenalty;
- }
+bool driver_enumerator::next_excluded()
+{
+ // always advance one
+ m_current++;
+
+ // if we have a filter, scan forward to the next match
+ while (m_current < s_driver_count)
+ {
+ if (!m_included[m_current])
+ break;
+ m_current++;
}
- /* free our temp memory */
- global_free(penalty);
+ // return true if we end up in range
+ return (m_current >= 0 && m_current < s_driver_count);
}
-/*-------------------------------------------------
- penalty_compare - compare two strings for
- closeness and assign a score.
--------------------------------------------------*/
+//-------------------------------------------------
+// driver_sort_callback - compare two items in
+// an array of game_driver pointers
+//-------------------------------------------------
-static int penalty_compare(const char *source, const char *target)
+void driver_enumerator::find_approximate_matches(const char *string, int count, int *results)
{
- int gaps = 1;
- int last = TRUE;
+#undef rand
- /* scan the strings */
- for ( ; *source && *target; target++)
+ // if no name, pick random entries
+ if (string == NULL || string[0] == 0)
{
- /* do a case insensitive match */
- int match = (tolower((UINT8)*source) == tolower((UINT8)*target));
+ // seed the RNG first
+ srand(osd_ticks());
- /* if we matched, advance the source */
- if (match)
- source++;
+ // allocate a temporary list
+ int *templist = global_alloc_array(int, m_filtered_count);
+ int arrayindex = 0;
+ for (int index = 0; index < s_driver_count; index++)
+ if (m_included[index])
+ templist[arrayindex++] = index;
+ assert(arrayindex == m_filtered_count);
- /* if the match state changed, count gaps */
- if (match != last)
+ // shuffle
+ for (int shufnum = 0; shufnum < 4 * s_driver_count; shufnum++)
{
- last = match;
- if (!match)
- gaps++;
+ int item1 = rand() % m_filtered_count;
+ int item2 = rand() % m_filtered_count;
+ int temp = templist[item1];
+ templist[item1] = templist[item2];
+ templist[item2] = temp;
}
- }
-
- /* penalty if short string does not completely fit in */
- for ( ; *source; source++)
- gaps++;
- /* if we matched perfectly, gaps == 0 */
- if (gaps == 1 && *source == 0 && *target == 0)
- gaps = 0;
+ // copy out the first few entries
+ for (int matchnum = 0; matchnum < count; matchnum++)
+ results[matchnum] = templist[matchnum % m_filtered_count];
- return gaps;
-}
+ global_free(templist);
+ return;
+ }
+ // allocate memory to track the penalty value
+ int *penalty = global_alloc_array(int, count);
-/*-------------------------------------------------
- driver_list_get_count - returns the amount of
- drivers
--------------------------------------------------*/
+ // initialize everyone's states
+ for (int matchnum = 0; matchnum < count; matchnum++)
+ {
+ penalty[matchnum] = 9999;
+ results[matchnum] = -1;
+ }
-int driver_list_get_count(const game_driver * const driverlist[])
-{
- int count;
+ // scan the entire drivers array
+ for (int index = 0; index < s_driver_count; index++)
+ if (m_included[index])
+ {
+ // skip things that can't run
+ if ((s_drivers_sorted[index]->flags & GAME_NO_STANDALONE) != 0)
+ continue;
- for (count = 0; driverlist[count] != NULL; count++) ;
- return count;
-}
+ // pick the best match between driver name and description
+ int curpenalty = penalty_compare(string, s_drivers_sorted[index]->description);
+ int tmp = penalty_compare(string, s_drivers_sorted[index]->name);
+ curpenalty = MIN(curpenalty, tmp);
-/*-------------------------------------------------
- driver_get_compatible - return a pointer to the
- compatible driver.
--------------------------------------------------*/
+ // insert into the sorted table of matches
+ for (int matchnum = count - 1; matchnum >= 0; matchnum--)
+ {
+ // stop if we're worse than the current entry
+ if (curpenalty >= penalty[matchnum])
+ break;
+
+ // as long as this isn't the last entry, bump this one down
+ if (matchnum < count - 1)
+ {
+ penalty[matchnum + 1] = penalty[matchnum];
+ results[matchnum + 1] = results[matchnum];
+ }
+ results[matchnum] = index;
+ penalty[matchnum] = curpenalty;
+ }
+ }
-const game_driver *driver_get_compatible(const game_driver *drv)
-{
- if (driver_get_clone(drv))
- drv = driver_get_clone(drv);
- else if (drv->compatible_with)
- drv = driver_get_name(drv->compatible_with);
- else
- drv = NULL;
- return drv;
+ // free our temp memory
+ global_free(penalty);
}