static bool find_first_libretro(char *path, size_t size,
const char *dir, const char *rom_path)
{
bool ret = false;
const char *ext = path_get_extension(rom_path);
if (!ext || !*ext)
{
RARCH_ERR("Path has no extension. Cannot infer libretro implementation.\n");
return false;
}
RARCH_LOG("Searching for valid libretro implementation in: \"%s\".\n", dir);
struct string_list *list = dir_list_new(dir, DYNAMIC_EXT, false);
if (!list)
{
RARCH_ERR("Couldn't open directory: \"%s\".\n", dir);
return false;
}
for (size_t i = 0; i < list->size && !ret; i++)
{
RARCH_LOG("Checking library: \"%s\".\n", list->elems[i].data);
dylib_t lib = dylib_load(list->elems[i].data);
if (!lib)
continue;
void (*proc)(struct retro_system_info*) =
(void (*)(struct retro_system_info*))dylib_proc(lib, "retro_get_system_info");
if (!proc)
{
dylib_close(lib);
continue;
}
struct retro_system_info info = {0};
proc(&info);
if (!info.valid_extensions)
{
dylib_close(lib);
continue;
}
struct string_list *supported_ext = string_split(info.valid_extensions, "|");
if (string_list_find_elem(supported_ext, ext))
{
strlcpy(path, list->elems[i].data, size);
ret = true;
}
string_list_free(supported_ext);
dylib_close(lib);
}
dir_list_free(list);
return ret;
}
static bool append_softfilter_plugs(rarch_softfilter_t *filt,
struct string_list *list)
{
unsigned i;
softfilter_simd_mask_t mask = retro_get_cpu_features();
for (i = 0; i < list->size; i++)
{
softfilter_get_implementation_t cb;
const struct softfilter_implementation *impl = NULL;
struct rarch_soft_plug *new_plugs = NULL;
dylib_t lib = dylib_load(list->elems[i].data);
if (!lib)
continue;
cb = (softfilter_get_implementation_t)
dylib_proc(lib, "softfilter_get_implementation");
if (!cb)
{
dylib_close(lib);
continue;
}
impl = cb(mask);
if (!impl)
{
dylib_close(lib);
continue;
}
if (impl->api_version != SOFTFILTER_API_VERSION)
{
dylib_close(lib);
continue;
}
new_plugs = (struct rarch_soft_plug*)
realloc(filt->plugs, sizeof(*filt->plugs) * (filt->num_plugs + 1));
if (!new_plugs)
{
dylib_close(lib);
return false;
}
RARCH_LOG("[SoftFilter]: Found plug: %s (%s).\n",
impl->ident, impl->short_ident);
filt->plugs = new_plugs;
filt->plugs[filt->num_plugs].lib = lib;
filt->plugs[filt->num_plugs].impl = impl;
filt->num_plugs++;
}
return true;
}
static void gfx_dwm_shutdown(void)
{
#ifdef HAVE_DYNAMIC
if (dwmlib)
dylib_close(dwmlib);
if (shell32lib)
dylib_close(shell32lib);
dwmlib = NULL;
shell32lib = NULL;
#endif
}
static bool append_plugs(rarch_dsp_filter_t *dsp, struct string_list *list)
{
unsigned i;
dspfilter_simd_mask_t mask = rarch_get_cpu_features();
for (i = 0; i < list->size; i++)
{
const struct dspfilter_implementation *impl = NULL;
struct rarch_dsp_plug *new_plugs = NULL;
dylib_t lib = dylib_load(list->elems[i].data);
if (!lib)
continue;
dspfilter_get_implementation_t cb = (dspfilter_get_implementation_t)
dylib_proc(lib, "dspfilter_get_implementation");
if (!cb)
{
dylib_close(lib);
continue;
}
impl = cb(mask);
if (!impl)
{
dylib_close(lib);
continue;
}
if (impl->api_version != DSPFILTER_API_VERSION)
{
dylib_close(lib);
continue;
}
new_plugs = (struct rarch_dsp_plug*)
realloc(dsp->plugs, sizeof(*dsp->plugs) * (dsp->num_plugs + 1));
if (!new_plugs)
{
dylib_close(lib);
return false;
}
/* Found plug. */
dsp->plugs = new_plugs;
dsp->plugs[dsp->num_plugs].lib = lib;
dsp->plugs[dsp->num_plugs].impl = impl;
dsp->num_plugs++;
}
return true;
}
void d3d9_deinitialize_symbols(void)
{
#ifdef HAVE_DYNAMIC_D3D
if (g_d3d9_dll)
dylib_close(g_d3d9_dll);
#ifdef HAVE_D3DX
if (g_d3d9x_dll)
dylib_close(g_d3d9x_dll);
g_d3d9x_dll = NULL;
#endif
g_d3d9_dll = NULL;
d3d9_dylib_initialized = false;
#endif
}
void rarch_dsp_filter_free(rarch_dsp_filter_t *dsp)
{
unsigned i;
if (!dsp)
return;
for (i = 0; i < dsp->num_instances; i++)
{
if (dsp->instances[i].impl_data && dsp->instances[i].impl)
dsp->instances[i].impl->free(dsp->instances[i].impl_data);
}
free(dsp->instances);
#ifdef HAVE_DYLIB
for (i = 0; i < dsp->num_plugs; i++)
{
if (dsp->plugs[i].lib)
dylib_close(dsp->plugs[i].lib);
}
free(dsp->plugs);
#endif
if (dsp->conf)
config_file_free(dsp->conf);
free(dsp);
}
static dylib_t libretro_get_system_info_lib(const char *path, struct retro_system_info *info, bool *load_no_rom)
{
dylib_t lib = dylib_load(path);
if (!lib)
return NULL;
void (*proc)(struct retro_system_info*) =
(void (*)(struct retro_system_info*))dylib_proc(lib, "retro_get_system_info");
if (!proc)
{
dylib_close(lib);
return NULL;
}
proc(info);
if (load_no_rom)
{
*load_no_rom = false;
void (*set_environ)(retro_environment_t) =
(void (*)(retro_environment_t))dylib_proc(lib, "retro_set_environment");
if (!set_environ)
return lib;
libretro_get_environment_info(set_environ, load_no_rom);
}
return lib;
}
void rarch_softfilter_free(rarch_softfilter_t *filt)
{
unsigned i;
i = 0;
(void)i;
if (!filt)
return;
free(filt->packets);
if (filt->impl && filt->impl_data)
filt->impl->destroy(filt->impl_data);
#if !defined(HAVE_FILTERS_BUILTIN) && defined(HAVE_DYLIB)
if (filt->lib)
dylib_close(filt->lib);
#endif
#ifdef HAVE_THREADS
for (i = 0; i < filt->threads; i++)
{
if (!filt->thread_data[i].thread)
continue;
slock_lock(filt->thread_data[i].lock);
filt->thread_data[i].die = true;
scond_signal(filt->thread_data[i].cond);
slock_unlock(filt->thread_data[i].lock);
sthread_join(filt->thread_data[i].thread);
slock_free(filt->thread_data[i].lock);
scond_free(filt->thread_data[i].cond);
}
free(filt->thread_data);
#endif
free(filt);
}
void uninit_libretro_sym(void)
{
#ifdef HAVE_DYNAMIC
if (lib_handle)
dylib_close(lib_handle);
#endif
}
static void deinit_dsp_plugin(void)
{
if (g_extern.audio_data.dsp_lib && g_extern.audio_data.dsp_plugin)
{
g_extern.audio_data.dsp_plugin->free(g_extern.audio_data.dsp_handle);
dylib_close(g_extern.audio_data.dsp_lib);
}
}
static void init_dsp_plugin(void)
{
if (!(*g_settings.audio.dsp_plugin))
return;
rarch_dsp_info_t info = {0};
g_extern.audio_data.dsp_lib = dylib_load(g_settings.audio.dsp_plugin);
if (!g_extern.audio_data.dsp_lib)
{
RARCH_ERR("Failed to open DSP plugin: \"%s\" ...\n", g_settings.audio.dsp_plugin);
return;
}
const rarch_dsp_plugin_t* (RARCH_API_CALLTYPE *plugin_init)(void) =
(const rarch_dsp_plugin_t *(RARCH_API_CALLTYPE*)(void))dylib_proc(g_extern.audio_data.dsp_lib, "rarch_dsp_plugin_init");
if (!plugin_init)
{
RARCH_ERR("Failed to find symbol \"rarch_dsp_plugin_init\" in DSP plugin.\n");
goto error;
}
g_extern.audio_data.dsp_plugin = plugin_init();
if (!g_extern.audio_data.dsp_plugin)
{
RARCH_ERR("Failed to get a valid DSP plugin.\n");
goto error;
}
if (g_extern.audio_data.dsp_plugin->api_version != RARCH_DSP_API_VERSION)
{
RARCH_ERR("DSP plugin API mismatch. RetroArch: %d, Plugin: %d\n", RARCH_DSP_API_VERSION, g_extern.audio_data.dsp_plugin->api_version);
goto error;
}
RARCH_LOG("Loaded DSP plugin: \"%s\"\n", g_extern.audio_data.dsp_plugin->ident ? g_extern.audio_data.dsp_plugin->ident : "Unknown");
info.input_rate = g_settings.audio.in_rate;
g_extern.audio_data.dsp_handle = g_extern.audio_data.dsp_plugin->init(&info);
if (!g_extern.audio_data.dsp_handle)
{
RARCH_ERR("Failed to init DSP plugin.\n");
goto error;
}
return;
error:
if (g_extern.audio_data.dsp_lib)
dylib_close(g_extern.audio_data.dsp_lib);
g_extern.audio_data.dsp_plugin = NULL;
g_extern.audio_data.dsp_lib = NULL;
}
static void audio_ext_free(void *data)
{
audio_ext_t *ext = (audio_ext_t*)data;
if (ext)
{
if (ext->driver && ext->handle)
ext->driver->free(ext->handle);
if (ext->lib)
dylib_close(ext->lib);
free(ext);
}
}
bool libretro_get_system_info(const char *path, struct retro_system_info *info,
bool *load_no_rom)
{
struct retro_system_info dummy_info = {0};
dylib_t lib = libretro_get_system_info_lib(path, &dummy_info, load_no_rom);
if (!lib)
return false;
memcpy(info, &dummy_info, sizeof(*info));
info->library_name = strdup(dummy_info.library_name);
info->library_version = strdup(dummy_info.library_version);
if (dummy_info.valid_extensions)
info->valid_extensions = strdup(dummy_info.valid_extensions);
dylib_close(lib);
return true;
}
void uninit_libretro_sym(void)
{
#ifdef HAVE_DYNAMIC
if (lib_handle)
dylib_close(lib_handle);
lib_handle = NULL;
#endif
if (g_extern.system.core_options)
{
core_option_flush(g_extern.system.core_options);
core_option_free(g_extern.system.core_options);
}
// No longer valid.
memset(&g_extern.system, 0, sizeof(g_extern.system));
}
static void xinput_joypad_destroy(void)
{
unsigned i;
for (i = 0; i < 4; ++i)
memset(&g_xinput_states[i], 0, sizeof(xinput_joypad_state));
dylib_close(g_xinput_dll);
g_xinput_dll = NULL;
g_XInputGetStateEx = NULL;
g_XInputSetState = NULL;
dinput_joypad.destroy();
g_xinput_block_pads = false;
}
/**
* uninit_libretro_sym:
*
* Frees libretro core.
*
* Frees all core options,
* associated state, and
* unbind all libretro callback symbols.
**/
void uninit_libretro_sym(void)
{
driver_t *driver = driver_get_ptr();
#ifdef HAVE_DYNAMIC
if (lib_handle)
dylib_close(lib_handle);
lib_handle = NULL;
#endif
pretro_init = NULL;
pretro_deinit = NULL;
pretro_api_version = NULL;
pretro_get_system_info = NULL;
pretro_get_system_av_info = NULL;
pretro_set_environment = NULL;
pretro_set_video_refresh = NULL;
pretro_set_audio_sample = NULL;
pretro_set_audio_sample_batch = NULL;
pretro_set_input_poll = NULL;
pretro_set_input_state = NULL;
pretro_set_controller_port_device = NULL;
pretro_reset = NULL;
pretro_run = NULL;
pretro_serialize_size = NULL;
pretro_serialize = NULL;
pretro_unserialize = NULL;
pretro_cheat_reset = NULL;
pretro_cheat_set = NULL;
pretro_load_game = NULL;
pretro_load_game_special = NULL;
pretro_unload_game = NULL;
pretro_get_region = NULL;
pretro_get_memory_data = NULL;
pretro_get_memory_size = NULL;
rarch_system_info_free();
driver->camera_active = false;
driver->location_active = false;
/* Performance counters no longer valid. */
retro_perf_clear();
}
static void video_ext_free(void *data)
{
ext_t *ext = (ext_t*)data;
if (ext)
{
if (ext->driver && ext->handle)
ext->driver->free(ext->handle);
if (g_input_dead)
{
dylib_close(g_lib);
g_lib = NULL;
}
g_video_dead = true;
free(ext);
}
}
/**
* 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();
}
static bool btstack_try_load(void)
{
#ifdef HAVE_DYNAMIC
unsigned i;
#endif
void *handle = NULL;
if (btstack_tested)
return btstack_loaded;
btstack_tested = true;
btstack_loaded = false;
handle = btstack_get_handle();
if (!handle)
return false;
#ifdef HAVE_DYNAMIC
for (i = 0; grabbers[i].name; i ++)
{
*grabbers[i].target = dylib_proc(handle, grabbers[i].name);
if (!*grabbers[i].target)
{
dylib_close(handle);
return false;
}
}
#endif
#if defined(HAVE_COCOA) || defined(HAVE_COCOATOUCH)
run_loop_init_ptr(RUN_LOOP_COCOA);
#else
run_loop_init_ptr(RUN_LOOP_POSIX);
#endif
bt_register_packet_handler_ptr(btpad_packet_handler);
btstack_loaded = true;
return true;
}
static dylib_t libretro_get_system_info_lib(const char *path,
struct retro_system_info *info, bool *load_no_content)
{
dylib_t lib = dylib_load(path);
void (*proc)(struct retro_system_info*);
if (!lib)
{
RARCH_ERR("%s: \"%s\"\n",
msg_hash_to_str(MSG_FAILED_TO_OPEN_LIBRETRO_CORE),
path);
RARCH_ERR("Error(s): %s\n", dylib_error());
return NULL;
}
proc = (void (*)(struct retro_system_info*))
dylib_proc(lib, "retro_get_system_info");
if (!proc)
{
dylib_close(lib);
return NULL;
}
proc(info);
if (load_no_content)
{
void (*set_environ)(retro_environment_t);
*load_no_content = false;
set_environ = (void (*)(retro_environment_t))
dylib_proc(lib, "retro_set_environment");
if (!set_environ)
return lib;
libretro_get_environment_info(set_environ, load_no_content);
}
return lib;
}
/**
* 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();
}
static dylib_t libretro_get_system_info_lib(const char *path,
struct retro_system_info *info, bool *load_no_content)
{
dylib_t lib = dylib_load(path);
void (*proc)(struct retro_system_info*);
if (!lib)
{
RARCH_ERR("Failed to open libretro core: \"%s\"\n",
path);
RARCH_ERR("Error(s): %s\n", dylib_error());
return NULL;
}
proc = (void (*)(struct retro_system_info*))
dylib_proc(lib, "retro_get_system_info");
if (!proc)
{
dylib_close(lib);
return NULL;
}
proc(info);
if (load_no_content)
{
void (*set_environ)(retro_environment_t);
*load_no_content = false;
set_environ = (void (*)(retro_environment_t))
dylib_proc(lib, "retro_set_environment");
if (!set_environ)
return lib;
libretro_get_environment_info(set_environ, load_no_content);
}
return lib;
}
/**
* libretro_get_system_info:
* @path : Path to libretro library.
* @info : Pointer to system info information.
* @load_no_content : If true, core should be able to auto-start
* without any content loaded.
*
* Gets system info from an arbitrary lib.
* The struct returned must be freed as strings are allocated dynamically.
*
* Returns: true (1) if successful, otherwise false (0).
**/
bool libretro_get_system_info(const char *path,
struct retro_system_info *info, bool *load_no_content)
{
#ifdef HAVE_DYNAMIC
struct retro_system_info dummy_info = {0};
dylib_t lib = libretro_get_system_info_lib(path,
&dummy_info, load_no_content);
if (!lib)
return false;
memcpy(info, &dummy_info, sizeof(*info));
info->library_name = strdup(dummy_info.library_name);
info->library_version = strdup(dummy_info.library_version);
if (dummy_info.valid_extensions)
info->valid_extensions = strdup(dummy_info.valid_extensions);
dylib_close(lib);
#else
if (!libretro_get_system_info_static(info, load_no_content))
return false;
#endif
return true;
}
static bool xinput_joypad_init(void)
{
unsigned i, autoconf_pad;
XINPUT_STATE dummy_state;
const char *version = "1.4";
settings_t *settings = config_get_ptr();
g_xinput_dll = NULL;
/* Find the correct path to load the DLL from.
* Usually this will be from the system directory,
* but occasionally a user may wish to use a third-party
* wrapper DLL (such as x360ce); support these by checking
* the working directory first.
*
* No need to check for existance as we will be checking dylib_load's
* success anyway.
*/
/* Using dylib_* complicates building joyconfig. */
g_xinput_dll = (HINSTANCE)dylib_load("xinput1_4.dll");
if (!g_xinput_dll)
{
g_xinput_dll = (HINSTANCE)dylib_load("xinput1_3.dll");
version = "1.3";
}
if (!g_xinput_dll)
{
RARCH_ERR("Failed to load XInput, ensure DirectX and controller drivers are up to date.\n");
return false;
}
RARCH_LOG("Found XInput v%s.\n", version);
/* If we get here then an xinput DLL is correctly loaded.
* First try to load ordinal 100 (XInputGetStateEx).
*/
g_XInputGetStateEx = (XInputGetStateEx_t)dylib_proc(g_xinput_dll, (const char*)100);
g_xinput_guide_button_supported = true;
if (!g_XInputGetStateEx)
{
/* no ordinal 100. (Presumably a wrapper.) Load the ordinary
* XInputGetState, at the cost of losing guide button support.
*/
g_xinput_guide_button_supported = false;
g_XInputGetStateEx = (XInputGetStateEx_t)dylib_proc(g_xinput_dll, "XInputGetState");
if (!g_XInputGetStateEx)
{
RARCH_ERR("Failed to init XInput: DLL is invalid or corrupt.\n");
dylib_close(g_xinput_dll);
return false; /* DLL was loaded but did not contain the correct function. */
}
RARCH_WARN("XInput: No guide button support.\n");
}
g_XInputSetState = (XInputSetState_t)dylib_proc(g_xinput_dll, "XInputSetState");
if (!g_XInputSetState)
{
RARCH_ERR("Failed to init XInput: DLL is invalid or corrupt.\n");
dylib_close(g_xinput_dll);
return false; /* DLL was loaded but did not contain the correct function. */
}
/* Zero out the states. */
for (i = 0; i < 4; ++i)
memset(&g_xinput_states[i], 0, sizeof(xinput_joypad_state));
/* Do a dummy poll to check which controllers are connected. */
for (i = 0; i < 4; ++i)
{
g_xinput_states[i].connected = !(g_XInputGetStateEx(i, &dummy_state) == ERROR_DEVICE_NOT_CONNECTED);
if (g_xinput_states[i].connected)
RARCH_LOG("Found XInput controller, user #%u\n", i);
}
if ((!g_xinput_states[0].connected) &&
(!g_xinput_states[1].connected) &&
(!g_xinput_states[2].connected) &&
(!g_xinput_states[3].connected))
return false;
g_xinput_block_pads = true;
/* We're going to have to be buddies with dinput if we want to be able
* to use XInput and non-XInput controllers together. */
if (!dinput_joypad.init())
{
g_xinput_block_pads = false;
return false;
}
for (autoconf_pad = 0; autoconf_pad < MAX_USERS; autoconf_pad++)
{
if (pad_index_to_xuser_index(autoconf_pad) > -1)
{
autoconfig_params_t params = {{0}};
strlcpy(settings->input.device_names[autoconf_pad],
xinput_joypad_name(autoconf_pad),
sizeof(settings->input.device_names[autoconf_pad]));
/* TODO - implement VID/PID? */
params.idx = autoconf_pad;
strlcpy(params.name, xinput_joypad_name(autoconf_pad), sizeof(params.name));
strlcpy(params.driver, xinput_joypad.ident, sizeof(params.driver));
input_config_autoconfigure_joypad(¶ms);
}
}
return true;
}
static void gfx_dwm_shutdown(void)
{
if (dwmlib)
dylib_close(dwmlib);
dwmlib = NULL;
}
static void gfx_ctx_wgl_destroy(void *data)
{
HWND window = win32_get_window();
gfx_ctx_wgl_data_t *wgl = (gfx_ctx_wgl_data_t*)data;
switch (win32_api)
{
case GFX_CTX_OPENGL_API:
#ifdef HAVE_OPENGL
if (win32_hrc)
{
glFinish();
wglMakeCurrent(NULL, NULL);
if (!video_driver_is_video_cache_context())
{
if (win32_hw_hrc)
wglDeleteContext(win32_hw_hrc);
wglDeleteContext(win32_hrc);
win32_hrc = NULL;
win32_hw_hrc = NULL;
}
}
#endif
break;
case GFX_CTX_VULKAN_API:
#ifdef HAVE_VULKAN
vulkan_context_destroy(&win32_vk, win32_vk.vk_surface != VK_NULL_HANDLE);
if (win32_vk.context.queue_lock)
slock_free(win32_vk.context.queue_lock);
memset(&win32_vk, 0, sizeof(win32_vk));
#endif
break;
case GFX_CTX_NONE:
default:
break;
}
if (window && win32_hdc)
{
ReleaseDC(window, win32_hdc);
win32_hdc = NULL;
}
if (window)
{
win32_monitor_from_window();
win32_destroy_window();
}
if (g_win32_restore_desktop)
{
win32_monitor_get_info();
g_win32_restore_desktop = false;
}
#ifdef HAVE_DYNAMIC
dylib_close(dll_handle);
#endif
if (wgl)
free(wgl);
wgl_adaptive_vsync = false;
win32_core_hw_context_enable = false;
g_win32_inited = false;
win32_major = 0;
win32_minor = 0;
p_swap_interval = NULL;
}
