/**
* Driver ownership - set this to true if the platform in question needs to 'own'
* the respective handle and therefore skip regular RetroArch
* driver teardown/reiniting procedure.
*
* If to true, the 'free' function will get skipped. It is
* then up to the driver implementation to properly handle
* 'reiniting' inside the 'init' function and make sure it
* returns the existing handle instead of allocating and
* returning a pointer to a new handle.
*
* Typically, if a driver intends to make use of this, it should
* set this to true at the end of its 'init' function.
**/
static void uninit_drivers(int flags)
{
#ifdef HAVE_MENU
if (flags & DRIVER_MENU)
menu_driver_ctl(RARCH_MENU_CTL_DEINIT, NULL);
#endif
if ((flags & DRIVER_LOCATION) && !location_driver_ctl(RARCH_LOCATION_CTL_OWNS_DRIVER, NULL))
location_driver_ctl(RARCH_LOCATION_CTL_DEINIT, NULL);
if ((flags & DRIVER_CAMERA) && !camera_driver_ctl(RARCH_CAMERA_CTL_OWNS_DRIVER, NULL))
camera_driver_ctl(RARCH_CAMERA_CTL_DEINIT, NULL);
if (flags & DRIVER_AUDIO)
audio_driver_deinit();
if (flags & DRIVERS_VIDEO_INPUT)
video_driver_deinit();
if ((flags & DRIVER_VIDEO) && !video_driver_owns_driver())
video_driver_destroy_data();
if ((flags & DRIVER_INPUT) && !input_driver_owns_driver())
input_driver_destroy_data();
if ((flags & DRIVER_AUDIO) && !audio_driver_owns_driver())
audio_driver_destroy_data();
}
void init_camera(void)
{
settings_t *settings = config_get_ptr();
rarch_system_info_t *system = NULL;
runloop_ctl(RUNLOOP_CTL_SYSTEM_INFO_GET, &system);
/* Resource leaks will follow if camera is initialized twice. */
if (camera_data)
return;
find_camera_driver();
camera_data = camera_driver->init(
*settings->camera.device ? settings->camera.device : NULL,
system->camera_callback.caps,
settings->camera.width ?
settings->camera.width : system->camera_callback.width,
settings->camera.height ?
settings->camera.height : system->camera_callback.height);
if (!camera_data)
{
RARCH_ERR("Failed to initialize camera driver. Will continue without camera.\n");
camera_driver_ctl(RARCH_CAMERA_CTL_UNSET_ACTIVE, NULL);
}
if (system->camera_callback.initialized)
system->camera_callback.initialized();
}
/**
* Driver ownership - set this to true if the platform in question needs to 'own'
* the respective handle and therefore skip regular RetroArch
* driver teardown/reiniting procedure.
*
* If to true, the 'free' function will get skipped. It is
* then up to the driver implementation to properly handle
* 'reiniting' inside the 'init' function and make sure it
* returns the existing handle instead of allocating and
* returning a pointer to a new handle.
*
* Typically, if a driver intends to make use of this, it should
* set this to true at the end of its 'init' function.
**/
void driver_uninit(int flags)
{
core_info_deinit_list();
core_info_free_current_core();
#ifdef HAVE_MENU
if (flags & DRIVER_MENU_MASK)
menu_driver_ctl(RARCH_MENU_CTL_DEINIT, NULL);
#endif
if ((flags & DRIVER_LOCATION_MASK) && !location_driver_ctl(RARCH_LOCATION_CTL_OWNS_DRIVER, NULL))
location_driver_ctl(RARCH_LOCATION_CTL_DEINIT, NULL);
if ((flags & DRIVER_CAMERA_MASK) && !camera_driver_ctl(RARCH_CAMERA_CTL_OWNS_DRIVER, NULL))
camera_driver_ctl(RARCH_CAMERA_CTL_DEINIT, NULL);
if ((flags & DRIVER_WIFI_MASK) && !wifi_driver_ctl(RARCH_WIFI_CTL_OWNS_DRIVER, NULL))
wifi_driver_ctl(RARCH_WIFI_CTL_DEINIT, NULL);
if (flags & DRIVER_LED)
led_driver_free();
if (flags & DRIVERS_VIDEO_INPUT)
video_driver_free();
if (flags & DRIVER_AUDIO_MASK)
audio_driver_deinit();
if ((flags & DRIVER_VIDEO_MASK) && !video_driver_owns_driver())
video_driver_destroy_data();
if ((flags & DRIVER_INPUT_MASK) && !input_driver_owns_driver())
input_driver_destroy_data();
if ((flags & DRIVER_AUDIO_MASK) && !audio_driver_owns_driver())
audio_driver_destroy_data();
if (flags & DRIVER_MIDI_MASK)
midi_driver_free();
}
/**
* uninit_libretro_sym:
*
* Frees libretro core.
*
* Frees all core options,
* associated state, and
* unbind all libretro callback symbols.
**/
void uninit_libretro_sym(struct retro_core_t *current_core)
{
#ifdef HAVE_DYNAMIC
if (lib_handle)
dylib_close(lib_handle);
lib_handle = NULL;
#endif
memset(current_core, 0, sizeof(struct retro_core_t));
runloop_ctl(RUNLOOP_CTL_CORE_OPTIONS_DEINIT, NULL);
runloop_ctl(RUNLOOP_CTL_SYSTEM_INFO_FREE, NULL);
runloop_ctl(RUNLOOP_CTL_FRAME_TIME_FREE, NULL);
camera_driver_ctl(RARCH_CAMERA_CTL_UNSET_ACTIVE, NULL);
location_driver_ctl(RARCH_LOCATION_CTL_UNSET_ACTIVE, NULL);
/* Performance counters no longer valid. */
performance_counters_clear();
}
/**
* uninit_libretro_sym:
*
* Frees libretro core.
*
* Frees all core options,
* associated state, and
* unbind all libretro callback symbols.
**/
void uninit_libretro_sym(void)
{
#ifdef HAVE_DYNAMIC
if (lib_handle)
dylib_close(lib_handle);
lib_handle = NULL;
#endif
core.retro_init = NULL;
core.retro_deinit = NULL;
core.retro_api_version = NULL;
core.retro_get_system_info = NULL;
core.retro_get_system_av_info = NULL;
core.retro_set_environment = NULL;
core.retro_set_video_refresh = NULL;
core.retro_set_audio_sample = NULL;
core.retro_set_audio_sample_batch = NULL;
core.retro_set_input_poll = NULL;
core.retro_set_input_state = NULL;
core.retro_set_controller_port_device = NULL;
core.retro_reset = NULL;
core.retro_run = NULL;
core.retro_serialize_size = NULL;
core.retro_serialize = NULL;
core.retro_unserialize = NULL;
core.retro_cheat_reset = NULL;
core.retro_cheat_set = NULL;
core.retro_load_game = NULL;
core.retro_load_game_special = NULL;
core.retro_unload_game = NULL;
core.retro_get_region = NULL;
core.retro_get_memory_data = NULL;
core.retro_get_memory_size = NULL;
runloop_ctl(RUNLOOP_CTL_SYSTEM_INFO_FREE, NULL);
camera_driver_ctl(RARCH_CAMERA_CTL_UNSET_ACTIVE, NULL);
location_driver_ctl(RARCH_LOCATION_CTL_UNSET_ACTIVE, NULL);
/* Performance counters no longer valid. */
retro_perf_clear();
}
/**
* runloop_iterate:
*
* Run Libretro core in RetroArch for one frame.
*
* Returns: 0 on success, 1 if we have to wait until
* button input in order to wake up the loop,
* -1 if we forcibly quit out of the RetroArch iteration loop.
**/
int runloop_iterate(unsigned *sleep_ms)
{
unsigned i;
event_cmd_state_t cmd;
retro_time_t current, target, to_sleep_ms;
static retro_input_t last_input = {0};
event_cmd_state_t *cmd_ptr = &cmd;
static retro_time_t frame_limit_minimum_time = 0.0;
static retro_time_t frame_limit_last_time = 0.0;
settings_t *settings = config_get_ptr();
cmd.state[1] = last_input;
cmd.state[0] = input_keys_pressed();
last_input = cmd.state[0];
runloop_ctl(RUNLOOP_CTL_UNSET_FRAME_TIME_LAST, NULL);
if (runloop_ctl(RUNLOOP_CTL_SHOULD_SET_FRAME_LIMIT, NULL))
{
struct retro_system_av_info *av_info =
video_viewport_get_system_av_info();
float fastforward_ratio =
(settings->fastforward_ratio == 0.0f)
? 1.0f : settings->fastforward_ratio;
frame_limit_last_time = cpu_features_get_time_usec();
frame_limit_minimum_time = (retro_time_t)roundf(1000000.0f
/ (av_info->timing.fps * fastforward_ratio));
runloop_ctl(RUNLOOP_CTL_UNSET_FRAME_LIMIT, NULL);
}
if (input_driver_is_flushing_input())
{
input_driver_unset_flushing_input();
if (cmd.state[0].state)
{
cmd.state[0].state = 0;
/* If core was paused before entering menu, evoke
* pause toggle to wake it up. */
if (runloop_ctl(RUNLOOP_CTL_IS_PAUSED, NULL))
BIT64_SET(cmd.state[0].state, RARCH_PAUSE_TOGGLE);
input_driver_set_flushing_input();
}
}
if (runloop_frame_time.callback)
{
/* Updates frame timing if frame timing callback is in use by the core.
* Limits frame time if fast forward ratio throttle is enabled. */
retro_time_t current = cpu_features_get_time_usec();
retro_time_t delta = current - runloop_frame_time_last;
bool is_locked_fps = (runloop_ctl(RUNLOOP_CTL_IS_PAUSED, NULL) ||
input_driver_is_nonblock_state()) |
!!recording_driver_get_data_ptr();
if (!runloop_frame_time_last || is_locked_fps)
delta = runloop_frame_time.reference;
if (!is_locked_fps && runloop_ctl(RUNLOOP_CTL_IS_SLOWMOTION, NULL))
delta /= settings->slowmotion_ratio;
runloop_frame_time_last = current;
if (is_locked_fps)
runloop_frame_time_last = 0;
runloop_frame_time.callback(delta);
}
cmd.state[2].state = cmd.state[0].state & ~cmd.state[1].state; /* trigger */
if (runloop_cmd_triggered(cmd_ptr, RARCH_OVERLAY_NEXT))
command_event(CMD_EVENT_OVERLAY_NEXT, NULL);
if (runloop_cmd_triggered(cmd_ptr, RARCH_FULLSCREEN_TOGGLE_KEY))
{
bool fullscreen_toggled = !runloop_ctl(RUNLOOP_CTL_IS_PAUSED, NULL);
#ifdef HAVE_MENU
fullscreen_toggled = fullscreen_toggled ||
menu_driver_ctl(RARCH_MENU_CTL_IS_ALIVE, NULL);
#endif
if (fullscreen_toggled)
command_event(CMD_EVENT_FULLSCREEN_TOGGLE, NULL);
}
if (runloop_cmd_triggered(cmd_ptr, RARCH_GRAB_MOUSE_TOGGLE))
command_event(CMD_EVENT_GRAB_MOUSE_TOGGLE, NULL);
#ifdef HAVE_MENU
if (runloop_cmd_menu_press(cmd_ptr) ||
rarch_ctl(RARCH_CTL_IS_DUMMY_CORE, NULL))
{
if (menu_driver_ctl(RARCH_MENU_CTL_IS_ALIVE, NULL))
{
if (rarch_ctl(RARCH_CTL_IS_INITED, NULL) &&
!rarch_ctl(RARCH_CTL_IS_DUMMY_CORE, NULL))
rarch_ctl(RARCH_CTL_MENU_RUNNING_FINISHED, NULL);
}
else
rarch_ctl(RARCH_CTL_MENU_RUNNING, NULL);
}
#endif
#ifdef HAVE_OVERLAY
runloop_iterate_linefeed_overlay(settings);
#endif
if (runloop_iterate_time_to_exit(
runloop_cmd_press(cmd_ptr, RARCH_QUIT_KEY)) != 1)
{
frame_limit_last_time = 0.0;
return -1;
}
#ifdef HAVE_MENU
if (menu_driver_ctl(RARCH_MENU_CTL_IS_ALIVE, NULL))
{
int ret = runloop_iterate_menu((enum menu_action)
menu_input_frame_retropad(cmd.state[0], cmd.state[2]),
sleep_ms);
if (ret == -1)
goto end;
return ret;
}
#endif
if (!runloop_check_state(&cmd, &runloop_shader_dir))
{
/* RetroArch has been paused. */
core_poll();
*sleep_ms = 10;
return 1;
}
#if defined(HAVE_THREADS)
autosave_lock();
#endif
#ifdef HAVE_NETPLAY
netplay_driver_ctl(RARCH_NETPLAY_CTL_PRE_FRAME, NULL);
#endif
if (bsv_movie_ctl(BSV_MOVIE_CTL_IS_INITED, NULL))
bsv_movie_ctl(BSV_MOVIE_CTL_SET_FRAME_START, NULL);
camera_driver_ctl(RARCH_CAMERA_CTL_POLL, NULL);
/* Update binds for analog dpad modes. */
for (i = 0; i < settings->input.max_users; i++)
{
if (!settings->input.analog_dpad_mode[i])
continue;
input_push_analog_dpad(settings->input.binds[i],
settings->input.analog_dpad_mode[i]);
input_push_analog_dpad(settings->input.autoconf_binds[i],
settings->input.analog_dpad_mode[i]);
}
if ((settings->video.frame_delay > 0) &&
!input_driver_is_nonblock_state())
retro_sleep(settings->video.frame_delay);
core_run();
#ifdef HAVE_CHEEVOS
cheevos_test();
#endif
for (i = 0; i < settings->input.max_users; i++)
{
if (!settings->input.analog_dpad_mode[i])
continue;
input_pop_analog_dpad(settings->input.binds[i]);
input_pop_analog_dpad(settings->input.autoconf_binds[i]);
}
if (bsv_movie_ctl(BSV_MOVIE_CTL_IS_INITED, NULL))
bsv_movie_ctl(BSV_MOVIE_CTL_SET_FRAME_END, NULL);
#ifdef HAVE_NETPLAY
netplay_driver_ctl(RARCH_NETPLAY_CTL_POST_FRAME, NULL);
#endif
#if defined(HAVE_THREADS)
autosave_unlock();
#endif
if (!settings->fastforward_ratio)
return 0;
#ifdef HAVE_MENU
end:
#endif
current = cpu_features_get_time_usec();
target = frame_limit_last_time +
frame_limit_minimum_time;
to_sleep_ms = (target - current) / 1000;
if (to_sleep_ms > 0)
{
*sleep_ms = (unsigned)to_sleep_ms;
/* Combat jitter a bit. */
frame_limit_last_time += frame_limit_minimum_time;
return 1;
}
frame_limit_last_time = cpu_features_get_time_usec();
return 0;
}
bool driver_ctl(enum driver_ctl_state state, void *data)
{
switch (state)
{
case RARCH_DRIVER_CTL_DEINIT:
video_driver_destroy();
audio_driver_destroy();
input_driver_destroy();
#ifdef HAVE_MENU
menu_driver_destroy();
#endif
location_driver_ctl(RARCH_LOCATION_CTL_DESTROY, NULL);
camera_driver_ctl(RARCH_CAMERA_CTL_DESTROY, NULL);
wifi_driver_ctl(RARCH_WIFI_CTL_DESTROY, NULL);
core_uninit_libretro_callbacks();
break;
case RARCH_DRIVER_CTL_INIT_PRE:
audio_driver_find_driver();
video_driver_find_driver();
input_driver_find_driver();
camera_driver_ctl(RARCH_CAMERA_CTL_FIND_DRIVER, NULL);
wifi_driver_ctl(RARCH_WIFI_CTL_FIND_DRIVER, NULL);
find_location_driver();
#ifdef HAVE_MENU
menu_driver_ctl(RARCH_MENU_CTL_FIND_DRIVER, NULL);
#endif
break;
case RARCH_DRIVER_CTL_SET_REFRESH_RATE:
{
float *hz = (float*)data;
video_monitor_set_refresh_rate(*hz);
audio_driver_monitor_set_rate();
driver_adjust_system_rates();
}
break;
case RARCH_DRIVER_CTL_UPDATE_SYSTEM_AV_INFO:
{
const struct retro_system_av_info **info = (const struct retro_system_av_info**)data;
if (info)
return driver_update_system_av_info(*info);
}
return false;
case RARCH_DRIVER_CTL_FIND_FIRST:
{
driver_ctx_info_t *drv = (driver_ctx_info_t*)data;
if (!drv)
return false;
return driver_find_first(drv->label, drv->s, drv->len);
}
case RARCH_DRIVER_CTL_FIND_LAST:
{
driver_ctx_info_t *drv = (driver_ctx_info_t*)data;
if (!drv)
return false;
return driver_find_last(drv->label, drv->s, drv->len);
}
case RARCH_DRIVER_CTL_FIND_PREV:
{
driver_ctx_info_t *drv = (driver_ctx_info_t*)data;
if (!drv)
return false;
return driver_find_prev(drv->label, drv->s, drv->len);
}
case RARCH_DRIVER_CTL_FIND_NEXT:
{
driver_ctx_info_t *drv = (driver_ctx_info_t*)data;
if (!drv)
return false;
return driver_find_next(drv->label, drv->s, drv->len);
}
case RARCH_DRIVER_CTL_FIND_INDEX:
{
driver_ctx_info_t *drv = (driver_ctx_info_t*)data;
if (!drv)
return false;
drv->len = driver_find_index(drv->label, drv->s);
}
break;
case RARCH_DRIVER_CTL_NONE:
default:
break;
}
return true;
}
/**
* drivers_init:
* @flags : Bitmask of drivers to initialize.
*
* Initializes drivers.
* @flags determines which drivers get initialized.
**/
void drivers_init(int flags)
{
bool video_is_threaded = false;
if (flags & DRIVER_VIDEO_MASK)
video_driver_unset_own_driver();
if (flags & DRIVER_AUDIO_MASK)
audio_driver_unset_own_driver();
if (flags & DRIVER_INPUT_MASK)
input_driver_unset_own_driver();
if (flags & DRIVER_CAMERA_MASK)
camera_driver_ctl(RARCH_CAMERA_CTL_UNSET_OWN_DRIVER, NULL);
if (flags & DRIVER_LOCATION_MASK)
location_driver_ctl(RARCH_LOCATION_CTL_UNSET_OWN_DRIVER, NULL);
if (flags & DRIVER_WIFI_MASK)
wifi_driver_ctl(RARCH_WIFI_CTL_UNSET_OWN_DRIVER, NULL);
#ifdef HAVE_MENU
/* By default, we want the menu to persist through driver reinits. */
menu_driver_ctl(RARCH_MENU_CTL_SET_OWN_DRIVER, NULL);
#endif
if (flags & (DRIVER_VIDEO_MASK | DRIVER_AUDIO_MASK))
driver_adjust_system_rates();
if (flags & DRIVER_VIDEO_MASK)
{
struct retro_hw_render_callback *hwr =
video_driver_get_hw_context();
video_driver_monitor_reset();
video_driver_init(&video_is_threaded);
if (!video_driver_is_video_cache_context_ack()
&& hwr->context_reset)
hwr->context_reset();
video_driver_unset_video_cache_context_ack();
rarch_ctl(RARCH_CTL_SET_FRAME_TIME_LAST, NULL);
}
if (flags & DRIVER_AUDIO_MASK)
{
audio_driver_init();
audio_driver_new_devices_list();
}
/* Only initialize camera driver if we're ever going to use it. */
if ((flags & DRIVER_CAMERA_MASK) && camera_driver_ctl(RARCH_CAMERA_CTL_IS_ACTIVE, NULL))
camera_driver_ctl(RARCH_CAMERA_CTL_INIT, NULL);
/* Only initialize location driver if we're ever going to use it. */
if ((flags & DRIVER_LOCATION_MASK) && location_driver_ctl(RARCH_LOCATION_CTL_IS_ACTIVE, NULL))
init_location();
core_info_init_current_core();
#ifdef HAVE_MENU
if (flags & DRIVER_VIDEO_MASK)
{
if (flags & DRIVER_MENU_MASK)
menu_driver_init(video_is_threaded);
}
#endif
if (flags & (DRIVER_VIDEO_MASK | DRIVER_AUDIO_MASK))
{
/* Keep non-throttled state as good as possible. */
if (input_driver_is_nonblock_state())
driver_set_nonblock_state();
}
if (flags & DRIVER_LED_MASK)
{
led_driver_init();
}
if (flags & DRIVER_MIDI_MASK)
midi_driver_init();
}
/**
* rarch_environment_cb:
* @cmd : Identifier of command.
* @data : Pointer to data.
*
* Environment callback function implementation.
*
* Returns: true (1) if environment callback command could
* be performed, otherwise false (0).
**/
bool rarch_environment_cb(unsigned cmd, void *data)
{
unsigned p;
settings_t *settings = config_get_ptr();
global_t *global = global_get_ptr();
rarch_system_info_t *system = NULL;
runloop_ctl(RUNLOOP_CTL_SYSTEM_INFO_GET, &system);
if (ignore_environment_cb)
return false;
switch (cmd)
{
case RETRO_ENVIRONMENT_GET_OVERSCAN:
*(bool*)data = !settings->video.crop_overscan;
RARCH_LOG("Environ GET_OVERSCAN: %u\n",
(unsigned)!settings->video.crop_overscan);
break;
case RETRO_ENVIRONMENT_GET_CAN_DUPE:
*(bool*)data = true;
RARCH_LOG("Environ GET_CAN_DUPE: true\n");
break;
case RETRO_ENVIRONMENT_GET_VARIABLE:
if (!runloop_ctl(RUNLOOP_CTL_CORE_OPTIONS_GET, data))
{
struct retro_variable *var = (struct retro_variable*)data;
if (var) {
RARCH_LOG("Environ GET_VARIABLE %s: not implemented.\n", var->key);
var->value = NULL;
}
}
break;
case RETRO_ENVIRONMENT_GET_VARIABLE_UPDATE:
*(bool*)data = runloop_ctl(RUNLOOP_CTL_IS_CORE_OPTION_UPDATED, NULL);
break;
case RETRO_ENVIRONMENT_SET_VARIABLES:
RARCH_LOG("Environ SET_VARIABLES.\n");
runloop_ctl(RUNLOOP_CTL_CORE_OPTIONS_DEINIT, NULL);
runloop_ctl(RUNLOOP_CTL_CORE_OPTIONS_INIT, data);
break;
case RETRO_ENVIRONMENT_SET_MESSAGE:
{
const struct retro_message *msg = (const struct retro_message*)data;
RARCH_LOG("Environ SET_MESSAGE: %s\n", msg->msg);
runloop_msg_queue_push(msg->msg, 1, msg->frames, true);
break;
}
case RETRO_ENVIRONMENT_SET_ROTATION:
{
unsigned rotation = *(const unsigned*)data;
RARCH_LOG("Environ SET_ROTATION: %u\n", rotation);
if (!settings->video.allow_rotate)
break;
system->rotation = rotation;
if (!video_driver_set_rotation(rotation))
return false;
break;
}
case RETRO_ENVIRONMENT_SHUTDOWN:
RARCH_LOG("Environ SHUTDOWN.\n");
runloop_ctl(RUNLOOP_CTL_SET_SHUTDOWN, NULL);
runloop_ctl(RUNLOOP_CTL_SET_CORE_SHUTDOWN, NULL);
break;
case RETRO_ENVIRONMENT_SET_PERFORMANCE_LEVEL:
system->performance_level = *(const unsigned*)data;
RARCH_LOG("Environ PERFORMANCE_LEVEL: %u.\n",
system->performance_level);
break;
case RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY:
if (string_is_empty(settings->system_directory))
{
char *fullpath = NULL;
runloop_ctl(RUNLOOP_CTL_GET_CONTENT_PATH, &fullpath);
RARCH_WARN("SYSTEM DIR is empty, assume CONTENT DIR %s\n", fullpath);
fill_pathname_basedir(global->dir.systemdir, fullpath,
sizeof(global->dir.systemdir));
*(const char**)data = global->dir.systemdir;
RARCH_LOG("Environ SYSTEM_DIRECTORY: \"%s\".\n",
global->dir.systemdir);
}
else
{
*(const char**)data = settings->system_directory;
RARCH_LOG("Environ SYSTEM_DIRECTORY: \"%s\".\n",
settings->system_directory);
}
break;
case RETRO_ENVIRONMENT_GET_SAVE_DIRECTORY:
*(const char**)data = rarch_get_current_savefile_dir();
break;
case RETRO_ENVIRONMENT_GET_USERNAME:
*(const char**)data = *settings->username ?
settings->username : NULL;
RARCH_LOG("Environ GET_USERNAME: \"%s\".\n",
settings->username);
break;
case RETRO_ENVIRONMENT_GET_LANGUAGE:
*(unsigned *)data = settings->user_language;
RARCH_LOG("Environ GET_LANGUAGE: \"%u\".\n",
settings->user_language);
break;
case RETRO_ENVIRONMENT_SET_PIXEL_FORMAT:
{
enum retro_pixel_format pix_fmt =
*(const enum retro_pixel_format*)data;
switch (pix_fmt)
{
case RETRO_PIXEL_FORMAT_0RGB1555:
RARCH_LOG("Environ SET_PIXEL_FORMAT: 0RGB1555.\n");
break;
case RETRO_PIXEL_FORMAT_RGB565:
RARCH_LOG("Environ SET_PIXEL_FORMAT: RGB565.\n");
break;
case RETRO_PIXEL_FORMAT_XRGB8888:
RARCH_LOG("Environ SET_PIXEL_FORMAT: XRGB8888.\n");
break;
default:
return false;
}
video_driver_set_pixel_format(pix_fmt);
break;
}
case RETRO_ENVIRONMENT_SET_INPUT_DESCRIPTORS:
{
unsigned retro_id, retro_port;
const struct retro_input_descriptor *desc = NULL;
static const char *libretro_btn_desc[] = {
"B (bottom)", "Y (left)", "Select", "Start",
"D-Pad Up", "D-Pad Down", "D-Pad Left", "D-Pad Right",
"A (right)", "X (up)",
"L", "R", "L2", "R2", "L3", "R3",
};
memset(system->input_desc_btn, 0,
sizeof(system->input_desc_btn));
desc = (const struct retro_input_descriptor*)data;
for (; desc->description; desc++)
{
retro_port = desc->port;
retro_id = desc->id;
if (desc->port >= MAX_USERS)
continue;
/* Ignore all others for now. */
if (desc->device != RETRO_DEVICE_JOYPAD &&
desc->device != RETRO_DEVICE_ANALOG)
continue;
if (desc->id >= RARCH_FIRST_CUSTOM_BIND)
continue;
if (desc->device == RETRO_DEVICE_ANALOG)
{
switch (retro_id)
{
case RETRO_DEVICE_ID_ANALOG_X:
switch (desc->index)
{
case RETRO_DEVICE_INDEX_ANALOG_LEFT:
system->input_desc_btn[retro_port][RARCH_ANALOG_LEFT_X_PLUS] = desc->description;
system->input_desc_btn[retro_port][RARCH_ANALOG_LEFT_X_MINUS] = desc->description;
break;
case RETRO_DEVICE_INDEX_ANALOG_RIGHT:
system->input_desc_btn[retro_port][RARCH_ANALOG_RIGHT_X_PLUS] = desc->description;
system->input_desc_btn[retro_port][RARCH_ANALOG_RIGHT_X_MINUS] = desc->description;
break;
}
break;
case RETRO_DEVICE_ID_ANALOG_Y:
switch (desc->index)
{
case RETRO_DEVICE_INDEX_ANALOG_LEFT:
system->input_desc_btn[retro_port][RARCH_ANALOG_LEFT_Y_PLUS] = desc->description;
system->input_desc_btn[retro_port][RARCH_ANALOG_LEFT_Y_MINUS] = desc->description;
break;
case RETRO_DEVICE_INDEX_ANALOG_RIGHT:
system->input_desc_btn[retro_port][RARCH_ANALOG_RIGHT_Y_PLUS] = desc->description;
system->input_desc_btn[retro_port][RARCH_ANALOG_RIGHT_Y_MINUS] = desc->description;
break;
}
break;
}
}
else
system->input_desc_btn[retro_port][retro_id] = desc->description;
}
RARCH_LOG("Environ SET_INPUT_DESCRIPTORS:\n");
for (p = 0; p < settings->input.max_users; p++)
{
for (retro_id = 0; retro_id < RARCH_FIRST_CUSTOM_BIND; retro_id++)
{
const char *description = system->input_desc_btn[p][retro_id];
if (!description)
continue;
RARCH_LOG("\tRetroPad, User %u, Button \"%s\" => \"%s\"\n",
p + 1, libretro_btn_desc[retro_id], description);
}
}
global->has_set.input_descriptors = true;
break;
}
case RETRO_ENVIRONMENT_SET_KEYBOARD_CALLBACK:
{
retro_keyboard_event_t *frontend_key_event = NULL;
retro_keyboard_event_t *key_event = NULL;
const struct retro_keyboard_callback *info =
(const struct retro_keyboard_callback*)data;
runloop_ctl(RUNLOOP_CTL_FRONTEND_KEY_EVENT_GET, &frontend_key_event);
runloop_ctl(RUNLOOP_CTL_KEY_EVENT_GET, &key_event);
RARCH_LOG("Environ SET_KEYBOARD_CALLBACK.\n");
if (key_event)
*key_event = info->callback;
if (frontend_key_event)
*frontend_key_event = *key_event;
break;
}
case RETRO_ENVIRONMENT_SET_DISK_CONTROL_INTERFACE:
RARCH_LOG("Environ SET_DISK_CONTROL_INTERFACE.\n");
system->disk_control =
*(const struct retro_disk_control_callback*)data;
break;
case RETRO_ENVIRONMENT_SET_HW_RENDER:
case RETRO_ENVIRONMENT_SET_HW_RENDER | RETRO_ENVIRONMENT_EXPERIMENTAL:
{
struct retro_hw_render_callback *hw_render = video_driver_callback();
struct retro_hw_render_callback *cb =
(struct retro_hw_render_callback*)data;
RARCH_LOG("Environ SET_HW_RENDER.\n");
switch (cb->context_type)
{
case RETRO_HW_CONTEXT_NONE:
RARCH_LOG("Requesting no HW context.\n");
break;
#if defined(HAVE_OPENGLES2)
case RETRO_HW_CONTEXT_OPENGLES2:
#if defined(HAVE_OPENGLES3)
case RETRO_HW_CONTEXT_OPENGLES3:
#endif
RARCH_LOG("Requesting OpenGLES%u context.\n",
cb->context_type == RETRO_HW_CONTEXT_OPENGLES2 ? 2 : 3);
break;
#if defined(HAVE_OPENGLES3)
case RETRO_HW_CONTEXT_OPENGLES_VERSION:
RARCH_LOG("Requesting OpenGLES%u.%u context.\n",
cb->version_major, cb->version_minor);
break;
#endif
case RETRO_HW_CONTEXT_OPENGL:
case RETRO_HW_CONTEXT_OPENGL_CORE:
RARCH_ERR("Requesting OpenGL context, but RetroArch is compiled against OpenGLES2. Cannot use HW context.\n");
return false;
#elif defined(HAVE_OPENGL)
case RETRO_HW_CONTEXT_OPENGLES2:
case RETRO_HW_CONTEXT_OPENGLES3:
RARCH_ERR("Requesting OpenGLES%u context, but RetroArch is compiled against OpenGL. Cannot use HW context.\n",
cb->context_type == RETRO_HW_CONTEXT_OPENGLES2 ? 2 : 3);
return false;
case RETRO_HW_CONTEXT_OPENGLES_VERSION:
RARCH_ERR("Requesting OpenGLES%u.%u context, but RetroArch is compiled against OpenGL. Cannot use HW context.\n",
cb->version_major, cb->version_minor);
return false;
case RETRO_HW_CONTEXT_OPENGL:
RARCH_LOG("Requesting OpenGL context.\n");
break;
case RETRO_HW_CONTEXT_OPENGL_CORE:
RARCH_LOG("Requesting core OpenGL context (%u.%u).\n",
cb->version_major, cb->version_minor);
break;
#endif
default:
RARCH_LOG("Requesting unknown context.\n");
return false;
}
cb->get_current_framebuffer = video_driver_get_current_framebuffer;
cb->get_proc_address = video_driver_get_proc_address;
if (cmd & RETRO_ENVIRONMENT_EXPERIMENTAL) /* Old ABI. Don't copy garbage. */
memcpy(hw_render,
cb, offsetof(struct retro_hw_render_callback, stencil));
else
memcpy(hw_render, cb, sizeof(*cb));
break;
}
case RETRO_ENVIRONMENT_SET_SUPPORT_NO_GAME:
{
bool state = *(const bool*)data;
RARCH_LOG("Environ SET_SUPPORT_NO_GAME: %s.\n", state ? "yes" : "no");
system->no_content = state;
break;
}
case RETRO_ENVIRONMENT_GET_LIBRETRO_PATH:
{
const char **path = (const char**)data;
*path = NULL;
#ifdef HAVE_DYNAMIC
*path = settings->libretro;
#endif
break;
}
/* FIXME - PS3 audio driver needs to be fixed so that threaded
* audio works correctly (audio is already on a thread for PS3
* audio driver so that's probably the problem) */
#if defined(HAVE_THREADS) && !defined(__CELLOS_LV2__)
case RETRO_ENVIRONMENT_SET_AUDIO_CALLBACK:
{
const struct retro_audio_callback *info =
(const struct retro_audio_callback*)data;
RARCH_LOG("Environ SET_AUDIO_CALLBACK.\n");
if (recording_driver_get_data_ptr()) /* A/V sync is a must. */
return false;
#ifdef HAVE_NETPLAY
if (global->netplay.enable)
return false;
#endif
audio_driver_set_callback(info);
break;
}
#endif
case RETRO_ENVIRONMENT_SET_FRAME_TIME_CALLBACK:
{
const struct retro_frame_time_callback *info =
(const struct retro_frame_time_callback*)data;
RARCH_LOG("Environ SET_FRAME_TIME_CALLBACK.\n");
#ifdef HAVE_NETPLAY
/* retro_run() will be called in very strange and
* mysterious ways, have to disable it. */
if (global->netplay.enable)
return false;
#endif
system->frame_time = *info;
break;
}
case RETRO_ENVIRONMENT_GET_RUMBLE_INTERFACE:
{
struct retro_rumble_interface *iface =
(struct retro_rumble_interface*)data;
RARCH_LOG("Environ GET_RUMBLE_INTERFACE.\n");
iface->set_rumble_state = input_driver_set_rumble_state;
break;
}
case RETRO_ENVIRONMENT_GET_INPUT_DEVICE_CAPABILITIES:
{
uint64_t *mask = (uint64_t*)data;
RARCH_LOG("Environ GET_INPUT_DEVICE_CAPABILITIES.\n");
if (input_driver_ctl(RARCH_INPUT_CTL_HAS_CAPABILITIES, NULL))
*mask = input_driver_get_capabilities();
else
return false;
break;
}
case RETRO_ENVIRONMENT_GET_SENSOR_INTERFACE:
{
struct retro_sensor_interface *iface =
(struct retro_sensor_interface*)data;
RARCH_LOG("Environ GET_SENSOR_INTERFACE.\n");
iface->set_sensor_state = input_sensor_set_state;
iface->get_sensor_input = input_sensor_get_input;
break;
}
case RETRO_ENVIRONMENT_GET_CAMERA_INTERFACE:
{
struct retro_camera_callback *cb =
(struct retro_camera_callback*)data;
RARCH_LOG("Environ GET_CAMERA_INTERFACE.\n");
cb->start = driver_camera_start;
cb->stop = driver_camera_stop;
system->camera_callback = *cb;
if (cb->caps != 0)
camera_driver_ctl(RARCH_CAMERA_CTL_SET_ACTIVE, NULL);
else
camera_driver_ctl(RARCH_CAMERA_CTL_UNSET_ACTIVE, NULL);
break;
}
case RETRO_ENVIRONMENT_GET_LOCATION_INTERFACE:
{
struct retro_location_callback *cb =
(struct retro_location_callback*)data;
RARCH_LOG("Environ GET_LOCATION_INTERFACE.\n");
cb->start = driver_location_start;
cb->stop = driver_location_stop;
cb->get_position = driver_location_get_position;
cb->set_interval = driver_location_set_interval;
system->location_callback = *cb;
location_driver_ctl(RARCH_LOCATION_CTL_UNSET_ACTIVE, NULL);
break;
}
case RETRO_ENVIRONMENT_GET_LOG_INTERFACE:
{
struct retro_log_callback *cb = (struct retro_log_callback*)data;
RARCH_LOG("Environ GET_LOG_INTERFACE.\n");
cb->log = rarch_log_libretro;
break;
}
case RETRO_ENVIRONMENT_GET_PERF_INTERFACE:
{
struct retro_perf_callback *cb = (struct retro_perf_callback*)data;
RARCH_LOG("Environ GET_PERF_INTERFACE.\n");
cb->get_time_usec = retro_get_time_usec;
cb->get_cpu_features = retro_get_cpu_features;
cb->get_perf_counter = retro_get_perf_counter;
cb->perf_register = retro_perf_register; /* libretro specific path. */
cb->perf_start = retro_perf_start;
cb->perf_stop = retro_perf_stop;
cb->perf_log = retro_perf_log; /* libretro specific path. */
break;
}
case RETRO_ENVIRONMENT_GET_CORE_ASSETS_DIRECTORY:
{
const char **dir = (const char**)data;
*dir = *settings->core_assets_directory ?
settings->core_assets_directory : NULL;
RARCH_LOG("Environ CORE_ASSETS_DIRECTORY: \"%s\".\n",
settings->core_assets_directory);
break;
}
case RETRO_ENVIRONMENT_SET_SYSTEM_AV_INFO:
{
RARCH_LOG("Environ SET_SYSTEM_AV_INFO.\n");
return driver_ctl(RARCH_DRIVER_CTL_UPDATE_SYSTEM_AV_INFO,
(void**)&data);
}
case RETRO_ENVIRONMENT_SET_SUBSYSTEM_INFO:
{
unsigned i, j;
const struct retro_subsystem_info *info =
(const struct retro_subsystem_info*)data;
RARCH_LOG("Environ SET_SUBSYSTEM_INFO.\n");
for (i = 0; info[i].ident; i++)
{
RARCH_LOG("Special game type: %s\n", info[i].desc);
RARCH_LOG(" Ident: %s\n", info[i].ident);
RARCH_LOG(" ID: %u\n", info[i].id);
RARCH_LOG(" Content:\n");
for (j = 0; j < info[i].num_roms; j++)
{
RARCH_LOG(" %s (%s)\n",
info[i].roms[j].desc, info[i].roms[j].required ?
"required" : "optional");
}
}
free(system->special);
system->special = (struct retro_subsystem_info*)
calloc(i, sizeof(*system->special));
if (!system->special)
return false;
memcpy(system->special, info,
i * sizeof(*system->special));
system->num_special = i;
break;
}
case RETRO_ENVIRONMENT_SET_CONTROLLER_INFO:
{
unsigned i, j;
const struct retro_controller_info *info =
(const struct retro_controller_info*)data;
RARCH_LOG("Environ SET_CONTROLLER_INFO.\n");
for (i = 0; info[i].types; i++)
{
RARCH_LOG("Controller port: %u\n", i + 1);
for (j = 0; j < info[i].num_types; j++)
RARCH_LOG(" %s (ID: %u)\n", info[i].types[j].desc,
info[i].types[j].id);
}
free(system->ports);
system->ports = (struct retro_controller_info*)
calloc(i, sizeof(*system->ports));
if (!system->ports)
return false;
memcpy(system->ports, info,
i * sizeof(*system->ports));
system->num_ports = i;
break;
}
case RETRO_ENVIRONMENT_SET_GEOMETRY:
{
struct retro_system_av_info *av_info = video_viewport_get_system_av_info();
const struct retro_game_geometry *in_geom =
(const struct retro_game_geometry*)data;
struct retro_game_geometry *geom = av_info ?
(struct retro_game_geometry*)&av_info->geometry : NULL;
if (!geom)
return false;
RARCH_LOG("Environ SET_GEOMETRY.\n");
/* Can potentially be called every frame,
* don't do anything unless required. */
if (geom->base_width != in_geom->base_width ||
geom->base_height != in_geom->base_height ||
geom->aspect_ratio != in_geom->aspect_ratio)
{
geom->base_width = in_geom->base_width;
geom->base_height = in_geom->base_height;
geom->aspect_ratio = in_geom->aspect_ratio;
RARCH_LOG("SET_GEOMETRY: %ux%u, aspect: %.3f.\n",
geom->base_width, geom->base_height, geom->aspect_ratio);
/* Forces recomputation of aspect ratios if
* using core-dependent aspect ratios. */
event_cmd_ctl(EVENT_CMD_VIDEO_SET_ASPECT_RATIO, NULL);
/* TODO: Figure out what to do, if anything, with recording. */
}
break;
}
case RETRO_ENVIRONMENT_GET_CURRENT_SOFTWARE_FRAMEBUFFER:
return video_driver_get_current_software_framebuffer((struct retro_framebuffer*)data);
/* Private extensions for internal use, not part of libretro API. */
case RETRO_ENVIRONMENT_EXEC:
{
RARCH_LOG("Environ (Private) EXEC.\n");
char *fullpath = NULL;
runloop_ctl(RUNLOOP_CTL_GET_CONTENT_PATH, &fullpath);
if (fullpath != data)
{
runloop_ctl(RUNLOOP_CTL_CLEAR_CONTENT_PATH, NULL);
if (data)
runloop_ctl(RUNLOOP_CTL_SET_CONTENT_PATH, data);
}
#if defined(RARCH_CONSOLE)
frontend_driver_set_fork(true, true, false);
#elif defined(HAVE_DYNAMIC)
rarch_ctl(RARCH_CTL_LOAD_CONTENT, NULL);
#endif
}
break;
default:
RARCH_LOG("Environ UNSUPPORTED (#%u).\n", cmd);
return false;
}
return true;
}
/**
* runloop_iterate:
*
* Run Libretro core in RetroArch for one frame.
*
* Returns: 0 on success, 1 if we have to wait until
* button input in order to wake up the loop,
* -1 if we forcibly quit out of the RetroArch iteration loop.
**/
int runloop_iterate(unsigned *sleep_ms)
{
unsigned i;
retro_time_t current, target, to_sleep_ms;
static uint64_t last_input = 0;
enum runloop_state runloop_status = RUNLOOP_STATE_NONE;
static retro_time_t frame_limit_minimum_time = 0.0;
static retro_time_t frame_limit_last_time = 0.0;
settings_t *settings = config_get_ptr();
uint64_t current_input = menu_driver_ctl(RARCH_MENU_CTL_IS_ALIVE, NULL) ? input_menu_keys_pressed() : input_keys_pressed();
uint64_t old_input = last_input;
last_input = current_input;
if (runloop_frame_time_last_enable)
{
runloop_frame_time_last = 0;
runloop_frame_time_last_enable = false;
}
if (runloop_set_frame_limit)
{
struct retro_system_av_info *av_info =
video_viewport_get_system_av_info();
float fastforward_ratio =
(settings->fastforward_ratio == 0.0f)
? 1.0f : settings->fastforward_ratio;
frame_limit_last_time = cpu_features_get_time_usec();
frame_limit_minimum_time = (retro_time_t)roundf(1000000.0f
/ (av_info->timing.fps * fastforward_ratio));
runloop_set_frame_limit = false;
}
if (runloop_frame_time.callback)
{
/* Updates frame timing if frame timing callback is in use by the core.
* Limits frame time if fast forward ratio throttle is enabled. */
retro_time_t current = cpu_features_get_time_usec();
retro_time_t delta = current - runloop_frame_time_last;
bool is_locked_fps = (runloop_paused ||
input_driver_is_nonblock_state()) |
!!recording_driver_get_data_ptr();
if (!runloop_frame_time_last || is_locked_fps)
delta = runloop_frame_time.reference;
if (!is_locked_fps && runloop_slowmotion)
delta /= settings->slowmotion_ratio;
runloop_frame_time_last = current;
if (is_locked_fps)
runloop_frame_time_last = 0;
runloop_frame_time.callback(delta);
}
runloop_status = runloop_check_state(settings, current_input,
old_input, sleep_ms);
switch (runloop_status)
{
case RUNLOOP_STATE_QUIT:
frame_limit_last_time = 0.0;
command_event(CMD_EVENT_QUIT, NULL);
return -1;
case RUNLOOP_STATE_SLEEP:
case RUNLOOP_STATE_END:
case RUNLOOP_STATE_MENU_ITERATE:
core_poll();
#ifdef HAVE_NETWORKING
/* FIXME: This is an ugly way to tell Netplay this... */
netplay_driver_ctl(RARCH_NETPLAY_CTL_PAUSE, NULL);
#endif
if (runloop_status == RUNLOOP_STATE_SLEEP)
*sleep_ms = 10;
if (runloop_status == RUNLOOP_STATE_END)
goto end;
if (runloop_status == RUNLOOP_STATE_MENU_ITERATE)
return 0;
return 1;
case RUNLOOP_STATE_ITERATE:
case RUNLOOP_STATE_NONE:
default:
break;
}
autosave_lock();
if (bsv_movie_ctl(BSV_MOVIE_CTL_IS_INITED, NULL))
bsv_movie_ctl(BSV_MOVIE_CTL_SET_FRAME_START, NULL);
camera_driver_ctl(RARCH_CAMERA_CTL_POLL, NULL);
/* Update binds for analog dpad modes. */
for (i = 0; i < settings->input.max_users; i++)
{
if (!settings->input.analog_dpad_mode[i])
continue;
input_push_analog_dpad(settings->input.binds[i],
settings->input.analog_dpad_mode[i]);
input_push_analog_dpad(settings->input.autoconf_binds[i],
settings->input.analog_dpad_mode[i]);
}
if ((settings->video.frame_delay > 0) &&
!input_driver_is_nonblock_state())
retro_sleep(settings->video.frame_delay);
core_run();
#ifdef HAVE_CHEEVOS
cheevos_test();
#endif
for (i = 0; i < settings->input.max_users; i++)
{
if (!settings->input.analog_dpad_mode[i])
continue;
input_pop_analog_dpad(settings->input.binds[i]);
input_pop_analog_dpad(settings->input.autoconf_binds[i]);
}
if (bsv_movie_ctl(BSV_MOVIE_CTL_IS_INITED, NULL))
bsv_movie_ctl(BSV_MOVIE_CTL_SET_FRAME_END, NULL);
autosave_unlock();
if (!settings->fastforward_ratio)
return 0;
end:
current = cpu_features_get_time_usec();
target = frame_limit_last_time +
frame_limit_minimum_time;
to_sleep_ms = (target - current) / 1000;
if (to_sleep_ms > 0)
{
*sleep_ms = (unsigned)to_sleep_ms;
/* Combat jitter a bit. */
frame_limit_last_time += frame_limit_minimum_time;
return 1;
}
frame_limit_last_time = cpu_features_get_time_usec();
return 0;
}
/**
* init_drivers:
* @flags : Bitmask of drivers to initialize.
*
* Initializes drivers.
* @flags determines which drivers get initialized.
**/
static void init_drivers(int flags)
{
if (flags & DRIVER_VIDEO)
video_driver_unset_own_driver();
if (flags & DRIVER_AUDIO)
audio_driver_unset_own_driver();
if (flags & DRIVER_INPUT)
input_driver_unset_own_driver();
if (flags & DRIVER_CAMERA)
camera_driver_ctl(RARCH_CAMERA_CTL_UNSET_OWN_DRIVER, NULL);
if (flags & DRIVER_LOCATION)
location_driver_ctl(RARCH_LOCATION_CTL_UNSET_OWN_DRIVER, NULL);
#ifdef HAVE_MENU
/* By default, we want the menu to persist through driver reinits. */
menu_driver_ctl(RARCH_MENU_CTL_SET_OWN_DRIVER, NULL);
#endif
if (flags & (DRIVER_VIDEO | DRIVER_AUDIO))
driver_adjust_system_rates();
if (flags & DRIVER_VIDEO)
{
struct retro_hw_render_callback *hwr =
video_driver_get_hw_context();
video_driver_monitor_reset();
video_driver_init();
if (!video_driver_is_video_cache_context_ack()
&& hwr->context_reset)
hwr->context_reset();
video_driver_unset_video_cache_context_ack();
runloop_ctl(RUNLOOP_CTL_SET_FRAME_TIME_LAST, NULL);
}
if (flags & DRIVER_AUDIO)
{
audio_driver_init();
audio_driver_new_devices_list();
}
/* Only initialize camera driver if we're ever going to use it. */
if ((flags & DRIVER_CAMERA) && camera_driver_ctl(RARCH_CAMERA_CTL_IS_ACTIVE, NULL))
camera_driver_ctl(RARCH_CAMERA_CTL_INIT, NULL);
/* Only initialize location driver if we're ever going to use it. */
if ((flags & DRIVER_LOCATION) && location_driver_ctl(RARCH_LOCATION_CTL_IS_ACTIVE, NULL))
init_location();
#ifdef HAVE_MENU
if (flags & DRIVER_MENU)
{
menu_driver_ctl(RARCH_MENU_CTL_INIT, NULL);
menu_driver_ctl(RARCH_MENU_CTL_CONTEXT_RESET, NULL);
}
#endif
if (flags & (DRIVER_VIDEO | DRIVER_AUDIO))
{
/* Keep non-throttled state as good as possible. */
if (input_driver_is_nonblock_state())
driver_ctl(RARCH_DRIVER_CTL_SET_NONBLOCK_STATE, NULL);
}
}
bool camera_driver_ctl(enum rarch_camera_ctl_state state, void *data)
{
settings_t *settings = config_get_ptr();
static struct retro_camera_callback camera_cb;
static const camera_driver_t *camera_driver = NULL;
static void *camera_data = NULL;
static bool camera_driver_active = false;
static bool camera_driver_data_own = false;
switch (state)
{
case RARCH_CAMERA_CTL_DESTROY:
camera_driver_active = false;
camera_driver_data_own = false;
camera_driver = NULL;
camera_data = NULL;
break;
case RARCH_CAMERA_CTL_SET_OWN_DRIVER:
camera_driver_data_own = true;
break;
case RARCH_CAMERA_CTL_UNSET_OWN_DRIVER:
camera_driver_data_own = false;
break;
case RARCH_CAMERA_CTL_OWNS_DRIVER:
return camera_driver_data_own;
case RARCH_CAMERA_CTL_SET_ACTIVE:
camera_driver_active = true;
break;
case RARCH_CAMERA_CTL_FIND_DRIVER:
{
int i;
driver_ctx_info_t drv;
drv.label = "camera_driver";
drv.s = settings->camera.driver;
driver_ctl(RARCH_DRIVER_CTL_FIND_INDEX, &drv);
i = drv.len;
if (i >= 0)
camera_driver = (const camera_driver_t*)camera_driver_find_handle(i);
else
{
unsigned d;
RARCH_ERR("Couldn't find any camera driver named \"%s\"\n",
settings->camera.driver);
RARCH_LOG_OUTPUT("Available camera drivers are:\n");
for (d = 0; camera_driver_find_handle(d); d++)
RARCH_LOG_OUTPUT("\t%s\n", camera_driver_find_ident(d));
RARCH_WARN("Going to default to first camera driver...\n");
camera_driver = (const camera_driver_t*)camera_driver_find_handle(0);
if (!camera_driver)
retro_fail(1, "find_camera_driver()");
}
}
break;
case RARCH_CAMERA_CTL_UNSET_ACTIVE:
camera_driver_active = false;
break;
case RARCH_CAMERA_CTL_IS_ACTIVE:
return camera_driver_active;
case RARCH_CAMERA_CTL_DEINIT:
if (camera_data && camera_driver)
{
if (camera_cb.deinitialized)
camera_cb.deinitialized();
if (camera_driver->free)
camera_driver->free(camera_data);
}
camera_data = NULL;
break;
case RARCH_CAMERA_CTL_STOP:
if ( camera_driver
&& camera_driver->stop
&& camera_data)
camera_driver->stop(camera_data);
break;
case RARCH_CAMERA_CTL_START:
if (camera_driver && camera_data && camera_driver->start)
{
if (settings->camera.allow)
return camera_driver->start(camera_data);
runloop_msg_queue_push(
"Camera is explicitly disabled.\n", 1, 180, false);
}
return false;
case RARCH_CAMERA_CTL_POLL:
if (!camera_cb.caps)
return false;
if (!camera_driver || !camera_driver->poll || !camera_data)
return false;
camera_driver->poll(camera_data,
camera_cb.frame_raw_framebuffer,
camera_cb.frame_opengl_texture);
break;
case RARCH_CAMERA_CTL_SET_CB:
{
struct retro_camera_callback *cb =
(struct retro_camera_callback*)data;
camera_cb = *cb;
}
break;
case RARCH_CAMERA_CTL_INIT:
/* Resource leaks will follow if camera is initialized twice. */
if (camera_data)
return false;
camera_driver_ctl(RARCH_CAMERA_CTL_FIND_DRIVER, NULL);
camera_data = camera_driver->init(
*settings->camera.device ? settings->camera.device : NULL,
camera_cb.caps,
settings->camera.width ?
settings->camera.width : camera_cb.width,
settings->camera.height ?
settings->camera.height : camera_cb.height);
if (!camera_data)
{
RARCH_ERR("Failed to initialize camera driver. Will continue without camera.\n");
camera_driver_ctl(RARCH_CAMERA_CTL_UNSET_ACTIVE, NULL);
}
if (camera_cb.initialized)
camera_cb.initialized();
break;
default:
break;
}
return false;
}
bool driver_camera_start(void)
{
return camera_driver_ctl(RARCH_CAMERA_CTL_START, NULL);
}
void driver_camera_stop(void)
{
camera_driver_ctl(RARCH_CAMERA_CTL_START, NULL);
}