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RetroArch/dynamic.c

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/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* Copyright (C) 2011-2017 - Daniel De Matteis
*
* RetroArch is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdarg.h>
#include <string.h>
#include <ctype.h>
#include <boolean.h>
#include <file/file_path.h>
#include <compat/strl.h>
#include <compat/posix_string.h>
#include <dynamic/dylib.h>
#include <string/stdstring.h>
#include <retro_assert.h>
#include <libretro.h>
#define VFS_FRONTEND
#include <vfs/vfs_implementation.h>
#include <features/features_cpu.h>
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifdef HAVE_CHEEVOS
#include "cheevos/cheevos.h"
#endif
#ifdef HAVE_OPENGL
#include "gfx/common/gl_common.h"
#endif
#ifdef HAVE_NETWORKING
#include "network/netplay/netplay.h"
#endif
#include "dynamic.h"
#include "command.h"
#include "audio/audio_driver.h"
#include "camera/camera_driver.h"
#include "location/location_driver.h"
#include "record/record_driver.h"
#include "driver.h"
#include "performance_counters.h"
#include "gfx/video_driver.h"
#include "led/led_driver.h"
#include "midi/midi_driver.h"
#include "cores/internal_cores.h"
#include "content.h"
#include "dirs.h"
#include "paths.h"
#include "retroarch.h"
#include "configuration.h"
#include "verbosity.h"
#include "tasks/tasks_internal.h"
#ifdef HAVE_RUNAHEAD
#include "runahead/secondary_core.h"
#include "runahead/run_ahead.h"
#endif
#ifdef HAVE_DYNAMIC
#define SYMBOL(x) do { \
function_t func = dylib_proc(lib_handle_local, #x); \
memcpy(&current_core->x, &func, sizeof(func)); \
if (current_core->x == NULL) { RARCH_ERR("Failed to load symbol: \"%s\"\n", #x); retroarch_fail(1, "init_libretro_sym()"); } \
} while (0)
static dylib_t lib_handle;
#else
#define SYMBOL(x) current_core->x = x
#endif
#define SYMBOL_DUMMY(x) current_core->x = libretro_dummy_##x
#ifdef HAVE_FFMPEG
#define SYMBOL_FFMPEG(x) current_core->x = libretro_ffmpeg_##x
#endif
#ifdef HAVE_MPV
#define SYMBOL_MPV(x) current_core->x = libretro_mpv_##x
#endif
#ifdef HAVE_IMAGEVIEWER
#define SYMBOL_IMAGEVIEWER(x) current_core->x = libretro_imageviewer_##x
#endif
#if defined(HAVE_NETWORKING) && defined(HAVE_NETWORKGAMEPAD)
#define SYMBOL_NETRETROPAD(x) current_core->x = libretro_netretropad_##x
#endif
#if defined(HAVE_VIDEO_PROCESSOR)
#define SYMBOL_VIDEOPROCESSOR(x) current_core->x = libretro_videoprocessor_##x
#endif
static bool ignore_environment_cb = false;
static bool core_set_shared_context = false;
static bool *load_no_content_hook = NULL;
const struct retro_subsystem_info *libretro_find_subsystem_info(
const struct retro_subsystem_info *info, unsigned num_info,
const char *ident)
{
unsigned i;
for (i = 0; i < num_info; i++)
{
if (string_is_equal(info[i].ident, ident))
return &info[i];
else if (string_is_equal(info[i].desc, ident))
return &info[i];
}
return NULL;
}
/**
* libretro_find_controller_description:
* @info : Pointer to controller info handle.
* @id : Identifier of controller to search
* for.
*
* Search for a controller of type @id in @info.
*
* Returns: controller description of found controller on success,
* otherwise NULL.
**/
const struct retro_controller_description *
libretro_find_controller_description(
const struct retro_controller_info *info, unsigned id)
{
unsigned i;
for (i = 0; i < info->num_types; i++)
{
if (info->types[i].id != id)
continue;
return &info->types[i];
}
return NULL;
}
/**
* libretro_free_system_info:
* @info : Pointer to system info information.
*
* Frees system information.
**/
void libretro_free_system_info(struct retro_system_info *info)
{
if (!info)
return;
free((void*)info->library_name);
free((void*)info->library_version);
free((void*)info->valid_extensions);
memset(info, 0, sizeof(*info));
}
static bool environ_cb_get_system_info(unsigned cmd, void *data)
{
rarch_system_info_t *system = runloop_get_system_info();
switch (cmd)
{
case RETRO_ENVIRONMENT_SET_SUPPORT_NO_GAME:
*load_no_content_hook = *(const bool*)data;
break;
case RETRO_ENVIRONMENT_SET_SUBSYSTEM_INFO:
{
unsigned i = 0;
unsigned j = 0;
unsigned size = i;
const struct retro_subsystem_info *info =
(const struct retro_subsystem_info*)data;
subsystem_current_count = 0;
RARCH_LOG("Environ SET_SUBSYSTEM_INFO.\n");
for (i = 0; info[i].ident; i++)
{
RARCH_LOG("Subsystem ID: %d\n", 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");
}
}
RARCH_LOG("Subsystems: %d\n", i);
size = i;
if (size > SUBSYSTEM_MAX_SUBSYSTEMS)
RARCH_WARN("Subsystems exceed subsystem max, clamping to %d\n", SUBSYSTEM_MAX_SUBSYSTEMS);
if (system)
{
for (i = 0; i < size && i < SUBSYSTEM_MAX_SUBSYSTEMS; i++)
{
subsystem_data[i].desc = strdup(info[i].desc);
subsystem_data[i].ident = strdup(info[i].ident);
subsystem_data[i].id = info[i].id;
subsystem_data[i].num_roms = info[i].num_roms;
if (subsystem_data[i].num_roms > SUBSYSTEM_MAX_SUBSYSTEM_ROMS)
RARCH_WARN("Subsystems exceed subsystem max roms, clamping to %d\n", SUBSYSTEM_MAX_SUBSYSTEM_ROMS);
for (j = 0; j < subsystem_data[i].num_roms && j < SUBSYSTEM_MAX_SUBSYSTEM_ROMS; j++)
{
subsystem_data_roms[i][j].desc = strdup(info[i].roms[j].desc);
subsystem_data_roms[i][j].valid_extensions = strdup(info[i].roms[j].valid_extensions);
subsystem_data_roms[i][j].required = info[i].roms[j].required;
subsystem_data_roms[i][j].block_extract = info[i].roms[j].block_extract;
subsystem_data_roms[i][j].need_fullpath = info[i].roms[j].need_fullpath;
}
subsystem_data[i].roms = subsystem_data_roms[i];
}
subsystem_current_count = size <= SUBSYSTEM_MAX_SUBSYSTEMS ? size : SUBSYSTEM_MAX_SUBSYSTEMS;
#if 0
RARCH_LOG("Subsystems: %d\n", subsystem_current_count);
for (i = 0; i < subsystem_current_count; i++)
{
RARCH_LOG("Subsystem ID: %d\n", i);
RARCH_LOG("Special game type: %s\n", subsystem_data[i].desc);
RARCH_LOG(" Ident: %s\n", subsystem_data[i].ident);
RARCH_LOG(" ID: %u\n", subsystem_data[i].id);
RARCH_LOG(" Content:\n");
for (j = 0; j < subsystem_data[i].num_roms; j++)
{
RARCH_LOG(" %s (%s)\n",
subsystem_data[i].roms[j].desc, subsystem_data[i].roms[j].required ?
"required" : "optional");
}
}
#endif
}
break;
}
default:
return false;
}
return true;
}
#ifdef HAVE_DYNAMIC
/**
* libretro_get_environment_info:
* @func : Function pointer for get_environment_info.
* @load_no_content : If true, core should be able to auto-start
* without any content loaded.
*
* Sets environment callback in order to get statically known
* information from it.
*
* Fetched via environment callbacks instead of
* retro_get_system_info(), as this info is part of extensions.
*
* Should only be called once right after core load to
* avoid overwriting the "real" environ callback.
*
* For statically linked cores, pass retro_set_environment as argument.
*/
static void libretro_get_environment_info(void (*func)(retro_environment_t),
bool *load_no_content)
{
load_no_content_hook = load_no_content;
/* load_no_content gets set in this callback. */
func(environ_cb_get_system_info);
/* It's possible that we just set get_system_info callback
* to the currently running core.
*
* Make sure we reset it to the actual environment callback.
* Ignore any environment callbacks here in case we're running
* on the non-current core. */
ignore_environment_cb = true;
func(rarch_environment_cb);
ignore_environment_cb = false;
}
static bool load_dynamic_core(void)
{
#if defined(__WINRT__) || defined(WINAPI_FAMILY) && WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP
/* Can't lookup symbols in itself on UWP */
#else
function_t sym = dylib_proc(NULL, "retro_init");
if (sym)
{
/* Try to verify that -lretro was not linked in from other modules
* since loading it dynamically and with -l will fail hard. */
RARCH_ERR("Serious problem. RetroArch wants to load libretro cores"
" dynamically, but it is already linked.\n");
RARCH_ERR("This could happen if other modules RetroArch depends on "
"link against libretro directly.\n");
RARCH_ERR("Proceeding could cause a crash. Aborting ...\n");
retroarch_fail(1, "init_libretro_sym()");
}
#endif
if (string_is_empty(path_get(RARCH_PATH_CORE)))
{
RARCH_ERR("RetroArch is built for dynamic libretro cores, but "
"libretro_path is not set. Cannot continue.\n");
retroarch_fail(1, "init_libretro_sym()");
}
/* Need to use absolute path for this setting. It can be
* saved to content history, and a relative path would
* break in that scenario. */
path_resolve_realpath(
path_get_ptr(RARCH_PATH_CORE),
path_get_realsize(RARCH_PATH_CORE));
RARCH_LOG("Loading dynamic libretro core from: \"%s\"\n",
path_get(RARCH_PATH_CORE));
lib_handle = dylib_load(path_get(RARCH_PATH_CORE));
if (lib_handle)
return true;
RARCH_ERR("Failed to open libretro core: \"%s\"\n",
path_get(RARCH_PATH_CORE));
RARCH_ERR("Error(s): %s\n", dylib_error());
runloop_msg_queue_push(msg_hash_to_str(MSG_FAILED_TO_OPEN_LIBRETRO_CORE), 1, 180, true);
return false;
}
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;
}
#endif
static char current_library_name[1024];
static char current_library_version[1024];
static char current_valid_extensions[1024];
/**
* 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)
{
struct retro_system_info dummy_info;
#ifdef HAVE_DYNAMIC
dylib_t lib;
#endif
dummy_info.library_name = NULL;
dummy_info.library_version = NULL;
dummy_info.valid_extensions = NULL;
dummy_info.need_fullpath = false;
dummy_info.block_extract = false;
#ifdef HAVE_DYNAMIC
lib = libretro_get_system_info_lib(
path, &dummy_info, load_no_content);
if (!lib)
return false;
#else
if (load_no_content)
{
load_no_content_hook = load_no_content;
/* load_no_content gets set in this callback. */
retro_set_environment(environ_cb_get_system_info);
/* It's possible that we just set get_system_info callback
* to the currently running core.
*
* Make sure we reset it to the actual environment callback.
* Ignore any environment callbacks here in case we're running
* on the non-current core. */
ignore_environment_cb = true;
retro_set_environment(rarch_environment_cb);
ignore_environment_cb = false;
}
retro_get_system_info(&dummy_info);
#endif
memcpy(info, &dummy_info, sizeof(*info));
current_library_name[0] = '\0';
current_library_version[0] = '\0';
current_valid_extensions[0] = '\0';
if (!string_is_empty(dummy_info.library_name))
strlcpy(current_library_name,
dummy_info.library_name, sizeof(current_library_name));
if (!string_is_empty(dummy_info.library_version))
strlcpy(current_library_version,
dummy_info.library_version, sizeof(current_library_version));
if (dummy_info.valid_extensions)
strlcpy(current_valid_extensions,
dummy_info.valid_extensions, sizeof(current_valid_extensions));
info->library_name = current_library_name;
info->library_version = current_library_version;
info->valid_extensions = current_valid_extensions;
#ifdef HAVE_DYNAMIC
dylib_close(lib);
#endif
return true;
}
/**
* load_symbols:
* @type : Type of core to be loaded.
* If CORE_TYPE_DUMMY, will
* load dummy symbols.
*
* Setup libretro callback symbols. Returns true on success,
* or false if symbols could not be loaded.
**/
bool init_libretro_sym_custom(enum rarch_core_type type, struct retro_core_t *current_core, const char *lib_path, dylib_t *lib_handle_p)
{
#ifdef HAVE_DYNAMIC
/* the library handle for use with the SYMBOL macro */
dylib_t lib_handle_local;
#endif
switch (type)
{
case CORE_TYPE_PLAIN:
#ifdef HAVE_DYNAMIC
#ifdef HAVE_RUNAHEAD
if (!lib_path || !lib_handle_p)
#endif
{
if (!load_dynamic_core())
return false;
lib_handle_local = lib_handle;
}
#ifdef HAVE_RUNAHEAD
else
{
/* for a secondary core, we already have a
* primary library loaded, so we can skip
* some checks and just load the library */
retro_assert(lib_path != NULL && lib_handle_p != NULL);
lib_handle_local = dylib_load(lib_path);
if (!lib_handle_local)
return false;
*lib_handle_p = lib_handle_local;
}
#endif
#endif
SYMBOL(retro_init);
SYMBOL(retro_deinit);
SYMBOL(retro_api_version);
SYMBOL(retro_get_system_info);
SYMBOL(retro_get_system_av_info);
SYMBOL(retro_set_environment);
SYMBOL(retro_set_video_refresh);
SYMBOL(retro_set_audio_sample);
SYMBOL(retro_set_audio_sample_batch);
SYMBOL(retro_set_input_poll);
SYMBOL(retro_set_input_state);
SYMBOL(retro_set_controller_port_device);
SYMBOL(retro_reset);
SYMBOL(retro_run);
SYMBOL(retro_serialize_size);
SYMBOL(retro_serialize);
SYMBOL(retro_unserialize);
SYMBOL(retro_cheat_reset);
SYMBOL(retro_cheat_set);
SYMBOL(retro_load_game);
SYMBOL(retro_load_game_special);
SYMBOL(retro_unload_game);
SYMBOL(retro_get_region);
SYMBOL(retro_get_memory_data);
SYMBOL(retro_get_memory_size);
break;
case CORE_TYPE_DUMMY:
SYMBOL_DUMMY(retro_init);
SYMBOL_DUMMY(retro_deinit);
SYMBOL_DUMMY(retro_api_version);
SYMBOL_DUMMY(retro_get_system_info);
SYMBOL_DUMMY(retro_get_system_av_info);
SYMBOL_DUMMY(retro_set_environment);
SYMBOL_DUMMY(retro_set_video_refresh);
SYMBOL_DUMMY(retro_set_audio_sample);
SYMBOL_DUMMY(retro_set_audio_sample_batch);
SYMBOL_DUMMY(retro_set_input_poll);
SYMBOL_DUMMY(retro_set_input_state);
SYMBOL_DUMMY(retro_set_controller_port_device);
SYMBOL_DUMMY(retro_reset);
SYMBOL_DUMMY(retro_run);
SYMBOL_DUMMY(retro_serialize_size);
SYMBOL_DUMMY(retro_serialize);
SYMBOL_DUMMY(retro_unserialize);
SYMBOL_DUMMY(retro_cheat_reset);
SYMBOL_DUMMY(retro_cheat_set);
SYMBOL_DUMMY(retro_load_game);
SYMBOL_DUMMY(retro_load_game_special);
SYMBOL_DUMMY(retro_unload_game);
SYMBOL_DUMMY(retro_get_region);
SYMBOL_DUMMY(retro_get_memory_data);
SYMBOL_DUMMY(retro_get_memory_size);
break;
case CORE_TYPE_FFMPEG:
#ifdef HAVE_FFMPEG
SYMBOL_FFMPEG(retro_init);
SYMBOL_FFMPEG(retro_deinit);
SYMBOL_FFMPEG(retro_api_version);
SYMBOL_FFMPEG(retro_get_system_info);
SYMBOL_FFMPEG(retro_get_system_av_info);
SYMBOL_FFMPEG(retro_set_environment);
SYMBOL_FFMPEG(retro_set_video_refresh);
SYMBOL_FFMPEG(retro_set_audio_sample);
SYMBOL_FFMPEG(retro_set_audio_sample_batch);
SYMBOL_FFMPEG(retro_set_input_poll);
SYMBOL_FFMPEG(retro_set_input_state);
SYMBOL_FFMPEG(retro_set_controller_port_device);
SYMBOL_FFMPEG(retro_reset);
SYMBOL_FFMPEG(retro_run);
SYMBOL_FFMPEG(retro_serialize_size);
SYMBOL_FFMPEG(retro_serialize);
SYMBOL_FFMPEG(retro_unserialize);
SYMBOL_FFMPEG(retro_cheat_reset);
SYMBOL_FFMPEG(retro_cheat_set);
SYMBOL_FFMPEG(retro_load_game);
SYMBOL_FFMPEG(retro_load_game_special);
SYMBOL_FFMPEG(retro_unload_game);
SYMBOL_FFMPEG(retro_get_region);
SYMBOL_FFMPEG(retro_get_memory_data);
SYMBOL_FFMPEG(retro_get_memory_size);
#endif
break;
case CORE_TYPE_MPV:
#ifdef HAVE_MPV
SYMBOL_MPV(retro_init);
SYMBOL_MPV(retro_deinit);
SYMBOL_MPV(retro_api_version);
SYMBOL_MPV(retro_get_system_info);
SYMBOL_MPV(retro_get_system_av_info);
SYMBOL_MPV(retro_set_environment);
SYMBOL_MPV(retro_set_video_refresh);
SYMBOL_MPV(retro_set_audio_sample);
SYMBOL_MPV(retro_set_audio_sample_batch);
SYMBOL_MPV(retro_set_input_poll);
SYMBOL_MPV(retro_set_input_state);
SYMBOL_MPV(retro_set_controller_port_device);
SYMBOL_MPV(retro_reset);
SYMBOL_MPV(retro_run);
SYMBOL_MPV(retro_serialize_size);
SYMBOL_MPV(retro_serialize);
SYMBOL_MPV(retro_unserialize);
SYMBOL_MPV(retro_cheat_reset);
SYMBOL_MPV(retro_cheat_set);
SYMBOL_MPV(retro_load_game);
SYMBOL_MPV(retro_load_game_special);
SYMBOL_MPV(retro_unload_game);
SYMBOL_MPV(retro_get_region);
SYMBOL_MPV(retro_get_memory_data);
SYMBOL_MPV(retro_get_memory_size);
#endif
break;
case CORE_TYPE_IMAGEVIEWER:
#ifdef HAVE_IMAGEVIEWER
SYMBOL_IMAGEVIEWER(retro_init);
SYMBOL_IMAGEVIEWER(retro_deinit);
SYMBOL_IMAGEVIEWER(retro_api_version);
SYMBOL_IMAGEVIEWER(retro_get_system_info);
SYMBOL_IMAGEVIEWER(retro_get_system_av_info);
SYMBOL_IMAGEVIEWER(retro_set_environment);
SYMBOL_IMAGEVIEWER(retro_set_video_refresh);
SYMBOL_IMAGEVIEWER(retro_set_audio_sample);
SYMBOL_IMAGEVIEWER(retro_set_audio_sample_batch);
SYMBOL_IMAGEVIEWER(retro_set_input_poll);
SYMBOL_IMAGEVIEWER(retro_set_input_state);
SYMBOL_IMAGEVIEWER(retro_set_controller_port_device);
SYMBOL_IMAGEVIEWER(retro_reset);
SYMBOL_IMAGEVIEWER(retro_run);
SYMBOL_IMAGEVIEWER(retro_serialize_size);
SYMBOL_IMAGEVIEWER(retro_serialize);
SYMBOL_IMAGEVIEWER(retro_unserialize);
SYMBOL_IMAGEVIEWER(retro_cheat_reset);
SYMBOL_IMAGEVIEWER(retro_cheat_set);
SYMBOL_IMAGEVIEWER(retro_load_game);
SYMBOL_IMAGEVIEWER(retro_load_game_special);
SYMBOL_IMAGEVIEWER(retro_unload_game);
SYMBOL_IMAGEVIEWER(retro_get_region);
SYMBOL_IMAGEVIEWER(retro_get_memory_data);
SYMBOL_IMAGEVIEWER(retro_get_memory_size);
#endif
break;
case CORE_TYPE_NETRETROPAD:
#if defined(HAVE_NETWORKING) && defined(HAVE_NETWORKGAMEPAD)
SYMBOL_NETRETROPAD(retro_init);
SYMBOL_NETRETROPAD(retro_deinit);
SYMBOL_NETRETROPAD(retro_api_version);
SYMBOL_NETRETROPAD(retro_get_system_info);
SYMBOL_NETRETROPAD(retro_get_system_av_info);
SYMBOL_NETRETROPAD(retro_set_environment);
SYMBOL_NETRETROPAD(retro_set_video_refresh);
SYMBOL_NETRETROPAD(retro_set_audio_sample);
SYMBOL_NETRETROPAD(retro_set_audio_sample_batch);
SYMBOL_NETRETROPAD(retro_set_input_poll);
SYMBOL_NETRETROPAD(retro_set_input_state);
SYMBOL_NETRETROPAD(retro_set_controller_port_device);
SYMBOL_NETRETROPAD(retro_reset);
SYMBOL_NETRETROPAD(retro_run);
SYMBOL_NETRETROPAD(retro_serialize_size);
SYMBOL_NETRETROPAD(retro_serialize);
SYMBOL_NETRETROPAD(retro_unserialize);
SYMBOL_NETRETROPAD(retro_cheat_reset);
SYMBOL_NETRETROPAD(retro_cheat_set);
SYMBOL_NETRETROPAD(retro_load_game);
SYMBOL_NETRETROPAD(retro_load_game_special);
SYMBOL_NETRETROPAD(retro_unload_game);
SYMBOL_NETRETROPAD(retro_get_region);
SYMBOL_NETRETROPAD(retro_get_memory_data);
SYMBOL_NETRETROPAD(retro_get_memory_size);
#endif
break;
case CORE_TYPE_VIDEO_PROCESSOR:
#if defined(HAVE_VIDEO_PROCESSOR)
SYMBOL_VIDEOPROCESSOR(retro_init);
SYMBOL_VIDEOPROCESSOR(retro_deinit);
SYMBOL_VIDEOPROCESSOR(retro_api_version);
SYMBOL_VIDEOPROCESSOR(retro_get_system_info);
SYMBOL_VIDEOPROCESSOR(retro_get_system_av_info);
SYMBOL_VIDEOPROCESSOR(retro_set_environment);
SYMBOL_VIDEOPROCESSOR(retro_set_video_refresh);
SYMBOL_VIDEOPROCESSOR(retro_set_audio_sample);
SYMBOL_VIDEOPROCESSOR(retro_set_audio_sample_batch);
SYMBOL_VIDEOPROCESSOR(retro_set_input_poll);
SYMBOL_VIDEOPROCESSOR(retro_set_input_state);
SYMBOL_VIDEOPROCESSOR(retro_set_controller_port_device);
SYMBOL_VIDEOPROCESSOR(retro_reset);
SYMBOL_VIDEOPROCESSOR(retro_run);
SYMBOL_VIDEOPROCESSOR(retro_serialize_size);
SYMBOL_VIDEOPROCESSOR(retro_serialize);
SYMBOL_VIDEOPROCESSOR(retro_unserialize);
SYMBOL_VIDEOPROCESSOR(retro_cheat_reset);
SYMBOL_VIDEOPROCESSOR(retro_cheat_set);
SYMBOL_VIDEOPROCESSOR(retro_load_game);
SYMBOL_VIDEOPROCESSOR(retro_load_game_special);
SYMBOL_VIDEOPROCESSOR(retro_unload_game);
SYMBOL_VIDEOPROCESSOR(retro_get_region);
SYMBOL_VIDEOPROCESSOR(retro_get_memory_data);
SYMBOL_VIDEOPROCESSOR(retro_get_memory_size);
#endif
break;
}
return true;
}
static bool load_symbols(enum rarch_core_type type, struct retro_core_t *current_core)
{
return init_libretro_sym_custom(type, current_core, NULL, NULL);
}
/**
* init_libretro_sym:
* @type : Type of core to be loaded.
* If CORE_TYPE_DUMMY, will
* load dummy symbols.
*
* Initializes libretro symbols and
* setups environment callback functions. Returns true on success,
* or false if symbols could not be loaded.
**/
bool init_libretro_sym(enum rarch_core_type type, struct retro_core_t *current_core)
{
if (!load_symbols(type, current_core))
return false;
#ifdef HAVE_RUNAHEAD
/* remember last core type created, so creating a
* secondary core will know what core type to use. */
set_last_core_type(type);
#endif
return true;
}
bool libretro_get_shared_context(void)
{
return core_set_shared_context;
}
/**
* 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));
core_set_shared_context = false;
rarch_ctl(RARCH_CTL_CORE_OPTIONS_DEINIT, NULL);
rarch_ctl(RARCH_CTL_SYSTEM_INFO_FREE, NULL);
rarch_ctl(RARCH_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 void rarch_log_libretro(enum retro_log_level level,
const char *fmt, ...)
{
va_list vp;
settings_t *settings = config_get_ptr();
if ((unsigned)level < settings->uints.libretro_log_level)
return;
if (!verbosity_is_enabled())
return;
va_start(vp, fmt);
switch (level)
{
case RETRO_LOG_DEBUG:
RARCH_LOG_V("[libretro DEBUG]", fmt, vp);
break;
case RETRO_LOG_INFO:
RARCH_LOG_OUTPUT_V("[libretro INFO]", fmt, vp);
break;
case RETRO_LOG_WARN:
RARCH_WARN_V("[libretro WARN]", fmt, vp);
break;
case RETRO_LOG_ERROR:
RARCH_ERR_V("[libretro ERROR]", fmt, vp);
break;
default:
break;
}
va_end(vp);
}
static size_t mmap_add_bits_down(size_t n)
{
n |= n >> 1;
n |= n >> 2;
n |= n >> 4;
n |= n >> 8;
n |= n >> 16;
/* double shift to avoid warnings on 32bit (it's dead code, but compilers suck) */
if (sizeof(size_t) > 4)
n |= n >> 16 >> 16;
return n;
}
static size_t mmap_inflate(size_t addr, size_t mask)
{
while (mask)
{
size_t tmp = (mask - 1) & ~mask;
/* to put in an 1 bit instead, OR in tmp+1 */
addr = ((addr & ~tmp) << 1) | (addr & tmp);
mask = mask & (mask - 1);
}
return addr;
}
static size_t mmap_reduce(size_t addr, size_t mask)
{
while (mask)
{
size_t tmp = (mask - 1) & ~mask;
addr = (addr & tmp) | ((addr >> 1) & ~tmp);
mask = (mask & (mask - 1)) >> 1;
}
return addr;
}
static size_t mmap_highest_bit(size_t n)
{
n = mmap_add_bits_down(n);
return n ^ (n >> 1);
}
static bool mmap_preprocess_descriptors(rarch_memory_descriptor_t *first, unsigned count)
{
size_t top_addr = 1;
rarch_memory_descriptor_t *desc = NULL;
const rarch_memory_descriptor_t *end = first + count;
for (desc = first; desc < end; desc++)
{
if (desc->core.select != 0)
top_addr |= desc->core.select;
else
top_addr |= desc->core.start + desc->core.len - 1;
}
top_addr = mmap_add_bits_down(top_addr);
for (desc = first; desc < end; desc++)
{
if (desc->core.select == 0)
{
if (desc->core.len == 0)
return false;
if ((desc->core.len & (desc->core.len - 1)) != 0)
return false;
desc->core.select = top_addr & ~mmap_inflate(mmap_add_bits_down(desc->core.len - 1),
desc->core.disconnect);
}
if (desc->core.len == 0)
desc->core.len = mmap_add_bits_down(mmap_reduce(top_addr & ~desc->core.select,
desc->core.disconnect)) + 1;
if (desc->core.start & ~desc->core.select)
return false;
while (mmap_reduce(top_addr & ~desc->core.select, desc->core.disconnect) >> 1 > desc->core.len - 1)
desc->core.disconnect |= mmap_highest_bit(top_addr & ~desc->core.select & ~desc->core.disconnect);
desc->disconnect_mask = mmap_add_bits_down(desc->core.len - 1);
desc->core.disconnect &= desc->disconnect_mask;
while ((~desc->disconnect_mask) >> 1 & desc->core.disconnect)
{
desc->disconnect_mask >>= 1;
desc->core.disconnect &= desc->disconnect_mask;
}
}
return true;
}
static bool dynamic_request_hw_context(enum retro_hw_context_type type,
unsigned minor, unsigned major)
{
switch (type)
{
case RETRO_HW_CONTEXT_NONE:
RARCH_LOG("Requesting no HW context.\n");
break;
case RETRO_HW_CONTEXT_VULKAN:
#ifdef HAVE_VULKAN
RARCH_LOG("Requesting Vulkan context.\n");
break;
#else
RARCH_ERR("Requesting Vulkan context, but RetroArch is not compiled against Vulkan. Cannot use HW context.\n");
return false;
#endif
#if defined(HAVE_OPENGLES)
#if (defined(HAVE_OPENGLES2) || defined(HAVE_OPENGLES3))
case RETRO_HW_CONTEXT_OPENGLES2:
case RETRO_HW_CONTEXT_OPENGLES3:
RARCH_LOG("Requesting OpenGLES%u context.\n",
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",
major, minor);
break;
#endif
#endif
case RETRO_HW_CONTEXT_OPENGL:
case RETRO_HW_CONTEXT_OPENGL_CORE:
RARCH_ERR("Requesting OpenGL context, but RetroArch "
"is compiled against OpenGLES. 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",
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",
major, minor);
return false;
case RETRO_HW_CONTEXT_OPENGL:
RARCH_LOG("Requesting OpenGL context.\n");
break;
case RETRO_HW_CONTEXT_OPENGL_CORE:
/* TODO/FIXME - we should do a check here to see if
* the requested core GL version is supported */
RARCH_LOG("Requesting core OpenGL context (%u.%u).\n",
major, minor);
break;
#endif
#if defined(HAVE_D3D9) || defined(HAVE_D3D11)
case RETRO_HW_CONTEXT_DIRECT3D:
switch (major)
{
#ifdef HAVE_D3D9
case 9:
RARCH_LOG("Requesting D3D9 context.\n");
break;
#endif
#ifdef HAVE_D3D11
case 11:
RARCH_LOG("Requesting D3D11 context.\n");
break;
#endif
default:
RARCH_LOG("Requesting unknown context.\n");
return false;
}
break;
#endif
default:
RARCH_LOG("Requesting unknown context.\n");
return false;
}
return true;
}
static bool dynamic_verify_hw_context(enum retro_hw_context_type type,
unsigned minor, unsigned major)
{
const char *video_ident = video_driver_get_ident();
switch (type)
{
case RETRO_HW_CONTEXT_VULKAN:
if (!string_is_equal(video_ident, "vulkan"))
return false;
break;
case RETRO_HW_CONTEXT_OPENGLES2:
case RETRO_HW_CONTEXT_OPENGLES3:
case RETRO_HW_CONTEXT_OPENGLES_VERSION:
case RETRO_HW_CONTEXT_OPENGL:
case RETRO_HW_CONTEXT_OPENGL_CORE:
if (!string_is_equal(video_ident, "gl"))
return false;
break;
case RETRO_HW_CONTEXT_DIRECT3D:
if (!(string_is_equal(video_ident, "d3d11") && major == 11))
return false;
break;
default:
break;
}
return true;
}
static void core_performance_counter_start(struct retro_perf_counter *perf)
{
if (rarch_ctl(RARCH_CTL_IS_PERFCNT_ENABLE, NULL))
{
perf->call_cnt++;
perf->start = cpu_features_get_perf_counter();
}
}
static void core_performance_counter_stop(struct retro_perf_counter *perf)
{
if (rarch_ctl(RARCH_CTL_IS_PERFCNT_ENABLE, NULL))
perf->total += cpu_features_get_perf_counter() - perf->start;
}
bool rarch_clear_all_thread_waits(unsigned clear_threads, void *data)
{
if ( clear_threads > 0)
audio_driver_start(false) ;
else
audio_driver_stop() ;
return true ;
}
/**
* 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();
rarch_system_info_t *system = runloop_get_system_info();
if (ignore_environment_cb)
return false;
switch (cmd)
{
case RETRO_ENVIRONMENT_GET_OVERSCAN:
*(bool*)data = !settings->bools.video_crop_overscan;
RARCH_LOG("Environ GET_OVERSCAN: %u\n",
(unsigned)!settings->bools.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 (!rarch_ctl(RARCH_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 = rarch_ctl(RARCH_CTL_IS_CORE_OPTION_UPDATED, NULL);
break;
case RETRO_ENVIRONMENT_SET_VARIABLES:
RARCH_LOG("Environ SET_VARIABLES.\n");
rarch_ctl(RARCH_CTL_CORE_OPTIONS_DEINIT, NULL);
rarch_ctl(RARCH_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, 3, msg->frames, true);
break;
}
case RETRO_ENVIRONMENT_SET_ROTATION:
{
unsigned rotation = *(const unsigned*)data;
RARCH_LOG("Environ SET_ROTATION: %u\n", rotation);
if (!settings->bools.video_allow_rotate)
break;
if (system)
system->rotation = rotation;
if (!video_driver_set_rotation(rotation))
return false;
break;
}
case RETRO_ENVIRONMENT_SHUTDOWN:
RARCH_LOG("Environ SHUTDOWN.\n");
rarch_ctl(RARCH_CTL_SET_SHUTDOWN, NULL);
rarch_ctl(RARCH_CTL_SET_CORE_SHUTDOWN, NULL);
break;
case RETRO_ENVIRONMENT_SET_PERFORMANCE_LEVEL:
if (system)
{
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->paths.directory_system) || settings->bools.systemfiles_in_content_dir)
{
const char *fullpath = path_get(RARCH_PATH_CONTENT);
if (!string_is_empty(fullpath))
{
size_t path_size = PATH_MAX_LENGTH * sizeof(char);
char *temp_path = (char*)malloc(PATH_MAX_LENGTH * sizeof(char));
temp_path[0] = '\0';
if (string_is_empty(settings->paths.directory_system))
RARCH_WARN("SYSTEM DIR is empty, assume CONTENT DIR %s\n",
fullpath);
fill_pathname_basedir(temp_path, fullpath, path_size);
dir_set(RARCH_DIR_SYSTEM, temp_path);
free(temp_path);
}
*(const char**)data = dir_get_ptr(RARCH_DIR_SYSTEM);
RARCH_LOG("Environ SYSTEM_DIRECTORY: \"%s\".\n",
dir_get(RARCH_DIR_SYSTEM));
}
else
{
*(const char**)data = settings->paths.directory_system;
RARCH_LOG("Environ SYSTEM_DIRECTORY: \"%s\".\n",
settings->paths.directory_system);
}
break;
case RETRO_ENVIRONMENT_GET_SAVE_DIRECTORY:
*(const char**)data = dir_get(RARCH_DIR_CURRENT_SAVEFILE);
break;
case RETRO_ENVIRONMENT_GET_USERNAME:
*(const char**)data = *settings->paths.username ?
settings->paths.username : NULL;
RARCH_LOG("Environ GET_USERNAME: \"%s\".\n",
settings->paths.username);
break;
case RETRO_ENVIRONMENT_GET_LANGUAGE:
#ifdef HAVE_LANGEXTRA
{
unsigned user_lang = *msg_hash_get_uint(MSG_HASH_USER_LANGUAGE);
*(unsigned *)data = user_lang;
RARCH_LOG("Environ GET_LANGUAGE: \"%u\".\n", user_lang);
}
#endif
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:
{
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",
};
if (system)
{
unsigned retro_id;
const struct retro_input_descriptor *desc = NULL;
memset(&system->input_desc_btn, 0,
sizeof(system->input_desc_btn));
desc = (const struct retro_input_descriptor*)data;
for (; desc->description; desc++)
{
unsigned 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");
{
unsigned max_users = *(input_driver_get_uint(INPUT_ACTION_MAX_USERS));
for (p = 0; p < 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);
}
}
}
core_set_input_descriptors();
}
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;
rarch_ctl(RARCH_CTL_FRONTEND_KEY_EVENT_GET, &frontend_key_event);
rarch_ctl(RARCH_CTL_KEY_EVENT_GET, &key_event);
RARCH_LOG("Environ SET_KEYBOARD_CALLBACK.\n");
if (key_event)
*key_event = info->callback;
if (frontend_key_event && key_event)
*frontend_key_event = *key_event;
break;
}
case RETRO_ENVIRONMENT_SET_DISK_CONTROL_INTERFACE:
RARCH_LOG("Environ SET_DISK_CONTROL_INTERFACE.\n");
if (system)
system->disk_control_cb =
*(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 *cb =
(struct retro_hw_render_callback*)data;
struct retro_hw_render_callback *hwr =
video_driver_get_hw_context();
RARCH_LOG("Environ SET_HW_RENDER.\n");
if (!dynamic_request_hw_context(cb->context_type, cb->version_minor, cb->version_major))
return false;
if (!dynamic_verify_hw_context(cb->context_type, cb->version_minor, cb->version_major))
return false;
#if defined(HAVE_OPENGL)
if (!gl_set_core_context(cb->context_type)) { }
#endif
cb->get_current_framebuffer = video_driver_get_current_framebuffer;
cb->get_proc_address = video_driver_get_proc_address;
/* Old ABI. Don't copy garbage. */
if (cmd & RETRO_ENVIRONMENT_EXPERIMENTAL)
{
memcpy(hwr,
cb, offsetof(struct retro_hw_render_callback, stencil));
memset((uint8_t*)hwr + offsetof(struct retro_hw_render_callback, stencil),
0, sizeof(*cb) - offsetof(struct retro_hw_render_callback, stencil));
}
else
memcpy(hwr, 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");
if (state)
content_set_does_not_need_content();
else
content_unset_does_not_need_content();
break;
}
case RETRO_ENVIRONMENT_SET_SAVE_STATE_IN_BACKGROUND:
{
bool state = *(const bool*)data;
RARCH_LOG("Environ SET_SAVE_STATE_IN_BACKGROUND: %s.\n", state ? "yes" : "no");
set_save_state_in_background(state) ;
break;
}
case RETRO_ENVIRONMENT_GET_LIBRETRO_PATH:
{
const char **path = (const char**)data;
#ifdef HAVE_DYNAMIC
*path = path_get(RARCH_PATH_CORE);
#else
*path = NULL;
#endif
break;
}
case RETRO_ENVIRONMENT_SET_AUDIO_CALLBACK:
#ifdef HAVE_THREADS
{
RARCH_LOG("Environ SET_AUDIO_CALLBACK.\n");
#ifdef HAVE_NETWORKING
if (netplay_driver_ctl(RARCH_NETPLAY_CTL_IS_ENABLED, NULL))
return false;
#endif
if (recording_driver_get_data_ptr()) /* A/V sync is a must. */
return false;
audio_driver_set_callback(data);
}
#endif
break;
case RETRO_ENVIRONMENT_SET_FRAME_TIME_CALLBACK:
{
RARCH_LOG("Environ SET_FRAME_TIME_CALLBACK.\n");
rarch_ctl(RARCH_CTL_SET_FRAME_TIME, data);
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_has_capabilities())
*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;
camera_driver_ctl(RARCH_CAMERA_CTL_SET_CB, 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;
if (system)
system->location_cb = *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 = cpu_features_get_time_usec;
cb->get_cpu_features = cpu_features_get;
cb->get_perf_counter = cpu_features_get_perf_counter;
cb->perf_register = performance_counter_register;
cb->perf_start = core_performance_counter_start;
cb->perf_stop = core_performance_counter_stop;
cb->perf_log = retro_perf_log;
break;
}
case RETRO_ENVIRONMENT_GET_CORE_ASSETS_DIRECTORY:
{
const char **dir = (const char**)data;
*dir = *settings->paths.directory_core_assets ?
settings->paths.directory_core_assets : NULL;
RARCH_LOG("Environ CORE_ASSETS_DIRECTORY: \"%s\".\n",
settings->paths.directory_core_assets);
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");
}
}
if (system)
{
struct retro_subsystem_info *info_ptr = NULL;
free(system->subsystem.data);
system->subsystem.data = NULL;
system->subsystem.size = 0;
info_ptr = (struct retro_subsystem_info*)
malloc(i * sizeof(*info_ptr));
if (!info_ptr)
return false;
system->subsystem.data = info_ptr;
memcpy(system->subsystem.data, info,
i * sizeof(*system->subsystem.data));
system->subsystem.size = 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);
}
if (system)
{
struct retro_controller_info *info_ptr = NULL;
free(system->ports.data);
system->ports.data = NULL;
system->ports.size = 0;
info_ptr = (struct retro_controller_info*)calloc(i, sizeof(*info_ptr));
if (!info_ptr)
return false;
system->ports.data = info_ptr;
memcpy(system->ports.data, info,
i * sizeof(*system->ports.data));
system->ports.size = i;
}
break;
}
case RETRO_ENVIRONMENT_SET_MEMORY_MAPS:
{
if (system)
{
unsigned i;
const struct retro_memory_map *mmaps =
(const struct retro_memory_map*)data;
rarch_memory_descriptor_t *descriptors = NULL;
RARCH_LOG("Environ SET_MEMORY_MAPS.\n");
free((void*)system->mmaps.descriptors);
system->mmaps.descriptors = 0;
system->mmaps.num_descriptors = 0;
descriptors = (rarch_memory_descriptor_t*)
calloc(mmaps->num_descriptors,
sizeof(*descriptors));
if (!descriptors)
return false;
system->mmaps.descriptors = descriptors;
system->mmaps.num_descriptors = mmaps->num_descriptors;
for (i = 0; i < mmaps->num_descriptors; i++)
system->mmaps.descriptors[i].core = mmaps->descriptors[i];
mmap_preprocess_descriptors(descriptors, mmaps->num_descriptors);
if (sizeof(void *) == 8)
RARCH_LOG(" ndx flags ptr offset start select disconn len addrspace\n");
else
RARCH_LOG(" ndx flags ptr offset start select disconn len addrspace\n");
for (i = 0; i < system->mmaps.num_descriptors; i++)
{
const rarch_memory_descriptor_t *desc =
&system->mmaps.descriptors[i];
char flags[7];
flags[0] = 'M';
if ((desc->core.flags & RETRO_MEMDESC_MINSIZE_8) == RETRO_MEMDESC_MINSIZE_8)
flags[1] = '8';
else if ((desc->core.flags & RETRO_MEMDESC_MINSIZE_4) == RETRO_MEMDESC_MINSIZE_4)
flags[1] = '4';
else if ((desc->core.flags & RETRO_MEMDESC_MINSIZE_2) == RETRO_MEMDESC_MINSIZE_2)
flags[1] = '2';
else
flags[1] = '1';
flags[2] = 'A';
if ((desc->core.flags & RETRO_MEMDESC_ALIGN_8) == RETRO_MEMDESC_ALIGN_8)
flags[3] = '8';
else if ((desc->core.flags & RETRO_MEMDESC_ALIGN_4) == RETRO_MEMDESC_ALIGN_4)
flags[3] = '4';
else if ((desc->core.flags & RETRO_MEMDESC_ALIGN_2) == RETRO_MEMDESC_ALIGN_2)
flags[3] = '2';
else
flags[3] = '1';
flags[4] = (desc->core.flags & RETRO_MEMDESC_BIGENDIAN) ? 'B' : 'b';
flags[5] = (desc->core.flags & RETRO_MEMDESC_CONST) ? 'C' : 'c';
flags[6] = 0;
RARCH_LOG(" %03u %s %p %08X %08X %08X %08X %08X %s\n",
i + 1, flags, desc->core.ptr, desc->core.offset, desc->core.start,
desc->core.select, desc->core.disconnect, desc->core.len,
desc->core.addrspace ? desc->core.addrspace : "");
}
}
else
{
RARCH_WARN("Environ SET_MEMORY_MAPS, but system pointer not initialized..\n");
}
break;
}
case RETRO_ENVIRONMENT_SET_GEOMETRY:
{
const struct retro_game_geometry *in_geom = NULL;
struct retro_game_geometry *geom = NULL;
struct retro_system_av_info *av_info =
video_viewport_get_system_av_info();
if (av_info)
geom = (struct retro_game_geometry*)&av_info->geometry;
if (!geom)
return false;
in_geom = (const struct retro_game_geometry*)data;
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. */
command_event(CMD_EVENT_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);
case RETRO_ENVIRONMENT_GET_HW_RENDER_INTERFACE:
return video_driver_get_hw_render_interface(
(const struct retro_hw_render_interface**)data);
case RETRO_ENVIRONMENT_SET_SUPPORT_ACHIEVEMENTS:
#ifdef HAVE_CHEEVOS
{
bool state = *(const bool*)data;
RARCH_LOG("Environ SET_SUPPORT_ACHIEVEMENTS: %s.\n", state ? "yes" : "no");
cheevos_set_support_cheevos(state);
}
#endif
break;
case RETRO_ENVIRONMENT_SET_HW_RENDER_CONTEXT_NEGOTIATION_INTERFACE:
{
const struct retro_hw_render_context_negotiation_interface *iface =
(const struct retro_hw_render_context_negotiation_interface*)data;
RARCH_LOG("Environ SET_HW_RENDER_CONTEXT_NEGOTIATION_INTERFACE.\n");
video_driver_set_context_negotiation_interface(iface);
break;
}
case RETRO_ENVIRONMENT_SET_SERIALIZATION_QUIRKS:
{
uint64_t *quirks = (uint64_t *) data;
core_set_serialization_quirks(*quirks);
break;
}
case RETRO_ENVIRONMENT_SET_HW_SHARED_CONTEXT:
{
core_set_shared_context = true;
break;
}
case RETRO_ENVIRONMENT_GET_VFS_INTERFACE:
{
const uint32_t supported_vfs_version = 1;
static struct retro_vfs_interface vfs_iface =
{
retro_vfs_file_get_path_impl,
retro_vfs_file_open_impl,
retro_vfs_file_close_impl,
retro_vfs_file_size_impl,
retro_vfs_file_tell_impl,
retro_vfs_file_seek_impl,
retro_vfs_file_read_impl,
retro_vfs_file_write_impl,
retro_vfs_file_flush_impl,
retro_vfs_file_remove_impl
};
struct retro_vfs_interface_info *vfs_iface_info = (struct retro_vfs_interface_info *) data;
if (vfs_iface_info->required_interface_version <= supported_vfs_version)
{
vfs_iface_info->required_interface_version = supported_vfs_version;
vfs_iface_info->iface = &vfs_iface;
}
break;
}
case RETRO_ENVIRONMENT_GET_LED_INTERFACE:
{
struct retro_led_interface *ledintf =
(struct retro_led_interface *)data;
if (ledintf)
ledintf->set_led_state = led_driver_set_led;
}
break;
case RETRO_ENVIRONMENT_GET_AUDIO_VIDEO_ENABLE:
{
int result = 0;
if (!audio_driver_is_suspended() && audio_driver_is_active())
result |= 2;
if (video_driver_is_active() && !video_driver_is_stub_frame())
result |= 1;
#ifdef HAVE_RUNAHEAD
if (want_fast_savestate())
result |= 4;
if (get_hard_disable_audio())
result |= 8;
#endif
#ifdef HAVE_NETWORKING
if (netplay_driver_ctl(RARCH_NETPLAY_CTL_IS_REPLAYING, NULL))
result &= ~(1|2);
if (netplay_driver_ctl(RARCH_NETPLAY_CTL_IS_ENABLED, NULL))
result |= 4;
#endif
if (data != NULL)
{
int* result_p = (int*)data;
*result_p = result;
}
break;
}
case RETRO_ENVIRONMENT_GET_MIDI_INTERFACE:
{
struct retro_midi_interface *midi_interface =
(struct retro_midi_interface *)data;
if (midi_interface)
{
midi_interface->input_enabled = midi_driver_input_enabled;
midi_interface->output_enabled = midi_driver_output_enabled;
midi_interface->read = midi_driver_read;
midi_interface->write = midi_driver_write;
midi_interface->flush = midi_driver_flush;
}
break;
}
case RETRO_ENVIRONMENT_GET_FASTFORWARDING:
{
extern bool runloop_fastmotion;
*(bool *)data = runloop_fastmotion;
break;
}
case RETRO_ENVIRONMENT_GET_CLEAR_ALL_THREAD_WAITS_CB:
{
*(retro_environment_t *)data = rarch_clear_all_thread_waits;
break;
}
default:
RARCH_LOG("Environ UNSUPPORTED (#%u).\n", cmd);
return false;
}
return true;
}
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