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RetroArch/frontend/frontend_driver.c
libretroadmin 7ebab640d7 Cleanups/style nits
2023-02-23 13:15:14 +01:00

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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 <stdio.h>
#include <string.h>
#include <compat/strl.h>
#include <string/stdstring.h>
#include <retro_miscellaneous.h>
#include <libretro.h>
#ifdef HAVE_CONFIG_H
#include "../config.h"
#endif
#if defined(_3DS)
#include <3ds.h>
#endif
#include "frontend_driver.h"
#ifndef __WINRT__
#if defined(WINAPI_FAMILY) && WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP
#define __WINRT__
#endif
#endif
static frontend_ctx_driver_t frontend_ctx_null = {
NULL, /* environment_get */
NULL, /* init */
NULL, /* deinit */
NULL, /* exitspawn */
NULL, /* process_args */
NULL, /* exec */
NULL, /* set_fork */
NULL, /* shutdown */
NULL, /* get_name */
NULL, /* get_os */
NULL, /* get_rating */
NULL, /* load_content */
NULL, /* get_architecture */
NULL, /* get_powerstate */
NULL, /* parse_drive_list */
NULL, /* get_mem_total */
NULL, /* get_mem_free */
NULL, /* install_signal_handler */
NULL, /* get_sighandler_state */
NULL, /* set_sighandler_state */
NULL, /* destroy_sighandler_state */
NULL, /* attach_console */
NULL, /* detach_console */
NULL, /* get_lakka_version */
NULL, /* set_screen_brightness */
NULL, /* watch_path_for_changes */
NULL, /* check_for_path_changes */
NULL, /* set_sustained_performance_mode */
NULL, /* get_cpu_model_name */
NULL, /* get_user_language */
NULL, /* is_narrator_running */
NULL, /* accessibility_speak */
NULL, /* set_gamemode */
"null",
NULL, /* get_video_driver */
};
static frontend_ctx_driver_t *frontend_ctx_drivers[] = {
#if defined(EMSCRIPTEN)
&frontend_ctx_emscripten,
#endif
#if defined(__PS3__)
&frontend_ctx_ps3,
#endif
#if defined(_XBOX)
&frontend_ctx_xdk,
#endif
#if defined(GEKKO)
&frontend_ctx_gx,
#endif
#if defined(WIIU)
&frontend_ctx_wiiu,
#endif
#if defined(__QNX__)
&frontend_ctx_qnx,
#endif
#if defined(__APPLE__) && defined(__MACH__)
&frontend_ctx_darwin,
#endif
#if defined(__linux__) || (defined(BSD) && !defined(__MACH__))
&frontend_ctx_unix,
#endif
#if defined(PSP) || defined(VITA)
&frontend_ctx_psp,
#endif
#if defined(PS2)
&frontend_ctx_ps2,
#endif
#if defined(_3DS)
&frontend_ctx_ctr,
#endif
#if defined(SWITCH) && defined(HAVE_LIBNX)
&frontend_ctx_switch,
#endif
#if defined(_WIN32) && !defined(_XBOX) && !defined(__WINRT__)
&frontend_ctx_win32,
#endif
#if defined(__WINRT__)
&frontend_ctx_uwp,
#endif
#ifdef XENON
&frontend_ctx_xenon,
#endif
#ifdef DJGPP
&frontend_ctx_dos,
#endif
#ifdef SWITCH
&frontend_ctx_switch,
#endif
#if defined(ORBIS)
&frontend_ctx_orbis,
#endif
&frontend_ctx_null,
NULL
};
static frontend_state_t frontend_driver_st = { 0 };
frontend_state_t *frontend_state_get_ptr(void)
{
return &frontend_driver_st;
}
/**
* frontend_ctx_find_driver:
* @ident : Identifier name of driver to find.
*
* Finds driver with @ident. Does not initialize.
*
* Returns: pointer to driver if successful, otherwise NULL.
**/
frontend_ctx_driver_t *frontend_ctx_find_driver(const char *ident)
{
unsigned i;
for (i = 0; frontend_ctx_drivers[i]; i++)
{
if (string_is_equal(frontend_ctx_drivers[i]->ident, ident))
return frontend_ctx_drivers[i];
}
return NULL;
}
/**
* frontend_ctx_init_first:
*
* Finds first suitable driver and initialize.
*
* Returns: pointer to first suitable driver, otherwise NULL.
**/
frontend_ctx_driver_t *frontend_ctx_init_first(void)
{
return frontend_ctx_drivers[0];
}
bool frontend_driver_get_core_extension(char *s, size_t len)
{
#ifdef HAVE_DYNAMIC
#ifdef _WIN32
s[0] = 'd';
s[1] = 'l';
s[2] = 'l';
s[3] = '\0';
return true;
#elif defined(__APPLE__) || defined(__MACH__)
s[0] = 'd';
s[1] = 'y';
s[2] = 'l';
s[3] = 'i';
s[4] = 'b';
s[5] = '\0';
return true;
#else
s[0] = 's';
s[1] = 'o';
s[2] = '\0';
return true;
#endif
#else
#if defined(PSP)
s[0] = 'p';
s[1] = 'b';
s[2] = 'p';
s[3] = '\0';
return true;
#elif defined(ORBIS) || defined(VITA) || defined(__PS3__)
strlcpy(s, "self|bin", len);
return true;
#elif defined(PS2)
s[0] = 'e';
s[1] = 'l';
s[2] = 'f';
s[3] = '\0';
return true;
#elif defined(_XBOX1)
s[0] = 'x';
s[1] = 'b';
s[2] = 'e';
s[3] = '\0';
return true;
#elif defined(_XBOX360)
s[0] = 'x';
s[1] = 'e';
s[2] = 'x';
s[3] = '\0';
return true;
#elif defined(GEKKO)
s[0] = 'd';
s[1] = 'o';
s[2] = 'l';
s[3] = '\0';
return true;
#elif defined(HW_WUP)
strlcpy(s, "rpx|elf", len);
return true;
#elif defined(__linux__)
s[0] = 'e';
s[1] = 'l';
s[2] = 'f';
s[3] = '\0';
return true;
#elif defined(HAVE_LIBNX)
s[0] = 'n';
s[1] = 'r';
s[2] = 'o';
s[3] = '\0';
return true;
#elif defined(DJGPP)
s[0] = 'e';
s[1] = 'x';
s[2] = 'e';
s[3] = '\0';
return true;
#elif defined(_3DS)
if (envIsHomebrew())
{
s[0] = '3';
s[1] = 'd';
s[2] = 's';
s[3] = 'x';
s[4] = '\0';
}
else
{
s[0] = 'c';
s[1] = 'i';
s[2] = 'a';
s[3] = '\0';
}
return true;
#else
return false;
#endif
#endif
}
bool frontend_driver_get_salamander_basename(char *s, size_t len)
{
#ifdef HAVE_DYNAMIC
return false;
#else
#if defined(PSP)
strlcpy(s, "EBOOT.PBP", len);
return true;
#elif defined(ORBIS)
strlcpy(s, "eboot.bin", len);
return true;
#elif defined(VITA)
strlcpy(s, "eboot.bin", len);
return true;
#elif defined(PS2)
strlcpy(s, "raboot.elf", len);
return true;
#elif defined(__PSL1GHT__) || defined(__PS3__)
strlcpy(s, "EBOOT.BIN", len);
return true;
#elif defined(_XBOX1)
strlcpy(s, "default.xbe", len);
return true;
#elif defined(_XBOX360)
strlcpy(s, "default.xex", len);
return true;
#elif defined(HW_RVL)
strlcpy(s, "boot.dol", len);
return true;
#elif defined(HW_WUP)
strlcpy(s, "retroarch.rpx", len);
return true;
#elif defined(_3DS)
strlcpy(s, "retroarch.core", len);
return true;
#elif defined(DJGPP)
strlcpy(s, "retrodos.exe", len);
return true;
#elif defined(SWITCH)
strlcpy(s, "retroarch_switch.nro", len);
return true;
#else
return false;
#endif
#endif
}
frontend_ctx_driver_t *frontend_get_ptr(void)
{
frontend_state_t *frontend_st = &frontend_driver_st;
return frontend_st->current_frontend_ctx;
}
int frontend_driver_parse_drive_list(void *data, bool load_content)
{
frontend_state_t *frontend_st = &frontend_driver_st;
frontend_ctx_driver_t *frontend = frontend_st->current_frontend_ctx;
if (frontend && frontend->parse_drive_list)
return frontend->parse_drive_list(data, load_content);
return -1;
}
void frontend_driver_content_loaded(void)
{
frontend_state_t *frontend_st = &frontend_driver_st;
frontend_ctx_driver_t *frontend = frontend_st->current_frontend_ctx;
if (frontend && frontend->content_loaded)
frontend->content_loaded();
}
bool frontend_driver_has_fork(void)
{
frontend_state_t *frontend_st = &frontend_driver_st;
frontend_ctx_driver_t *frontend = frontend_st->current_frontend_ctx;
return frontend && frontend->set_fork;
}
bool frontend_driver_set_fork(enum frontend_fork fork_mode)
{
frontend_state_t *frontend_st = &frontend_driver_st;
frontend_ctx_driver_t *frontend = frontend_st->current_frontend_ctx;
if (!frontend || !frontend_driver_has_fork())
return false;
return frontend->set_fork(fork_mode);
}
void frontend_driver_process_args(int *argc, char *argv[])
{
frontend_state_t *frontend_st = &frontend_driver_st;
frontend_ctx_driver_t *frontend = frontend_st->current_frontend_ctx;
if (frontend && frontend->process_args)
frontend->process_args(argc, argv);
}
bool frontend_driver_is_inited(void)
{
frontend_state_t *frontend_st = &frontend_driver_st;
frontend_ctx_driver_t *frontend = frontend_st->current_frontend_ctx;
return frontend != NULL;
}
void frontend_driver_init_first(void *args)
{
frontend_state_t *frontend_st = &frontend_driver_st;
frontend_st->current_frontend_ctx = (frontend_ctx_driver_t*)
frontend_ctx_init_first();
if ( frontend_st->current_frontend_ctx
&& frontend_st->current_frontend_ctx->init)
frontend_st->current_frontend_ctx->init(args);
}
void frontend_driver_free(void)
{
frontend_state_t *frontend_st = &frontend_driver_st;
frontend_st->current_frontend_ctx = NULL;
}
bool frontend_driver_has_get_video_driver_func(void)
{
frontend_state_t *frontend_st = &frontend_driver_st;
frontend_ctx_driver_t *frontend = frontend_st->current_frontend_ctx;
return frontend && frontend->get_video_driver;
}
const struct video_driver *frontend_driver_get_video_driver(void)
{
frontend_state_t *frontend_st = &frontend_driver_st;
frontend_ctx_driver_t *frontend = frontend_st->current_frontend_ctx;
if (!frontend || !frontend->get_video_driver)
return NULL;
return frontend->get_video_driver();
}
void frontend_driver_exitspawn(char *s, size_t len, char *args)
{
frontend_state_t *frontend_st = &frontend_driver_st;
frontend_ctx_driver_t *frontend = frontend_st->current_frontend_ctx;
if (frontend && frontend->exitspawn)
frontend->exitspawn(s, len, args);
}
void frontend_driver_deinit(void *args)
{
frontend_state_t *frontend_st = &frontend_driver_st;
frontend_ctx_driver_t *frontend = frontend_st->current_frontend_ctx;
if (frontend && frontend->deinit)
frontend->deinit(args);
}
void frontend_driver_shutdown(bool a)
{
frontend_state_t *frontend_st = &frontend_driver_st;
frontend_ctx_driver_t *frontend = frontend_st->current_frontend_ctx;
if (frontend && frontend->shutdown)
frontend->shutdown(a);
}
enum frontend_architecture frontend_driver_get_cpu_architecture(void)
{
frontend_state_t *frontend_st = &frontend_driver_st;
frontend_ctx_driver_t *frontend = frontend_st->current_frontend_ctx;
if (frontend && frontend->get_architecture)
return frontend->get_architecture();
return FRONTEND_ARCH_NONE;
}
const void *frontend_driver_get_cpu_architecture_str(
char *s, size_t len)
{
frontend_state_t *frontend_st = &frontend_driver_st;
frontend_ctx_driver_t *frontend = frontend_st->current_frontend_ctx;
enum frontend_architecture arch = frontend_driver_get_cpu_architecture();
switch (arch)
{
case FRONTEND_ARCH_X86:
s[0] = 'x';
s[1] = '8';
s[2] = '6';
s[3] = '\0';
break;
case FRONTEND_ARCH_X86_64:
s[0] = 'x';
s[1] = '6';
s[2] = '4';
s[3] = '\0';
break;
case FRONTEND_ARCH_PPC:
s[0] = 'P';
s[1] = 'P';
s[2] = 'C';
s[3] = '\0';
break;
case FRONTEND_ARCH_ARM:
s[0] = 'A';
s[1] = 'R';
s[2] = 'M';
s[3] = '\0';
break;
case FRONTEND_ARCH_ARMV7:
s[0] = 'A';
s[1] = 'R';
s[2] = 'M';
s[3] = 'v';
s[4] = '7';
s[5] = '\0';
break;
case FRONTEND_ARCH_ARMV8:
s[0] = 'A';
s[1] = 'R';
s[2] = 'M';
s[3] = 'v';
s[4] = '8';
s[5] = '\0';
break;
case FRONTEND_ARCH_MIPS:
s[0] = 'M';
s[1] = 'I';
s[2] = 'P';
s[3] = 'S';
s[4] = '\0';
break;
case FRONTEND_ARCH_TILE:
s[0] = 'T';
s[1] = 'i';
s[2] = 'l';
s[3] = 'e';
s[4] = 'r';
s[5] = 'a';
s[6] = '\0';
break;
case FRONTEND_ARCH_NONE:
default:
s[0] = 'N';
s[1] = '/';
s[2] = 'A';
s[3] = '\0';
break;
}
return frontend;
}
uint64_t frontend_driver_get_total_memory(void)
{
frontend_state_t *frontend_st = &frontend_driver_st;
frontend_ctx_driver_t *frontend = frontend_st->current_frontend_ctx;
if (frontend && frontend->get_total_mem)
return frontend->get_total_mem();
return 0;
}
uint64_t frontend_driver_get_free_memory(void)
{
frontend_state_t *frontend_st = &frontend_driver_st;
frontend_ctx_driver_t *frontend = frontend_st->current_frontend_ctx;
if (frontend && frontend->get_free_mem)
return frontend->get_free_mem();
return 0;
}
void frontend_driver_install_signal_handler(void)
{
frontend_state_t *frontend_st = &frontend_driver_st;
frontend_ctx_driver_t *frontend = frontend_st->current_frontend_ctx;
if (frontend && frontend->install_signal_handler)
frontend->install_signal_handler();
}
int frontend_driver_get_signal_handler_state(void)
{
frontend_state_t *frontend_st = &frontend_driver_st;
frontend_ctx_driver_t *frontend = frontend_st->current_frontend_ctx;
if (frontend && frontend->get_signal_handler_state)
return frontend->get_signal_handler_state();
return -1;
}
void frontend_driver_set_signal_handler_state(int value)
{
frontend_state_t *frontend_st = &frontend_driver_st;
frontend_ctx_driver_t *frontend = frontend_st->current_frontend_ctx;
if (frontend && frontend->set_signal_handler_state)
frontend->set_signal_handler_state(value);
}
void frontend_driver_attach_console(void)
{
/* TODO/FIXME - the frontend driver code is garbage and needs to be
redesigned. Apparently frontend_driver_attach_console can be called
BEFORE frontend_driver_init_first is called, hence why we need
to resort to the check for non-NULL below. This is just awful,
BEFORE we make any frontend function call, we should be 100%
sure frontend_driver_init_first has already been called first.
For now, we do this hack, but this absolutely should be redesigned
as soon as possible.
*/
if ( frontend_driver_st.current_frontend_ctx
&& frontend_driver_st.current_frontend_ctx->attach_console)
frontend_driver_st.current_frontend_ctx->attach_console();
}
void frontend_driver_set_screen_brightness(int value)
{
frontend_state_t *frontend_st = &frontend_driver_st;
frontend_ctx_driver_t *frontend = frontend_st->current_frontend_ctx;
if (frontend && frontend->set_screen_brightness)
frontend->set_screen_brightness(value);
}
bool frontend_driver_can_set_screen_brightness(void)
{
frontend_state_t *frontend_st = &frontend_driver_st;
frontend_ctx_driver_t *frontend = frontend_st->current_frontend_ctx;
return (frontend && frontend->set_screen_brightness);
}
void frontend_driver_detach_console(void)
{
frontend_state_t *frontend_st = &frontend_driver_st;
frontend_ctx_driver_t *frontend = frontend_st->current_frontend_ctx;
if (frontend && frontend->detach_console)
frontend->detach_console();
}
void frontend_driver_destroy_signal_handler_state(void)
{
frontend_state_t *frontend_st = &frontend_driver_st;
frontend_ctx_driver_t *frontend = frontend_st->current_frontend_ctx;
if (frontend && frontend->destroy_signal_handler_state)
frontend->destroy_signal_handler_state();
}
bool frontend_driver_can_watch_for_changes(void)
{
frontend_state_t *frontend_st = &frontend_driver_st;
frontend_ctx_driver_t *frontend = frontend_st->current_frontend_ctx;
return frontend && frontend->watch_path_for_changes;
}
void frontend_driver_watch_path_for_changes(
struct string_list *list, int flags,
path_change_data_t **change_data)
{
frontend_state_t *frontend_st = &frontend_driver_st;
frontend_ctx_driver_t *frontend = frontend_st->current_frontend_ctx;
if (frontend && frontend->watch_path_for_changes)
frontend->watch_path_for_changes(list, flags, change_data);
}
bool frontend_driver_check_for_path_changes(path_change_data_t *change_data)
{
frontend_state_t *frontend_st = &frontend_driver_st;
frontend_ctx_driver_t *frontend = frontend_st->current_frontend_ctx;
if (frontend && frontend->check_for_path_changes)
return frontend->check_for_path_changes(change_data);
return false;
}
void frontend_driver_set_sustained_performance_mode(bool on)
{
frontend_state_t *frontend_st = &frontend_driver_st;
frontend_ctx_driver_t *frontend = frontend_st->current_frontend_ctx;
if (frontend && frontend->set_sustained_performance_mode)
frontend->set_sustained_performance_mode(on);
}
const char* frontend_driver_get_cpu_model_name(void)
{
frontend_state_t *frontend_st = &frontend_driver_st;
frontend_ctx_driver_t *frontend = frontend_st->current_frontend_ctx;
if (frontend && frontend->get_cpu_model_name)
return frontend->get_cpu_model_name();
return NULL;
}
enum retro_language frontend_driver_get_user_language(void)
{
frontend_state_t *frontend_st = &frontend_driver_st;
frontend_ctx_driver_t *frontend = frontend_st->current_frontend_ctx;
if (frontend && frontend->get_user_language)
return frontend->get_user_language();
return RETRO_LANGUAGE_ENGLISH;
}
bool frontend_driver_has_gamemode(void)
{
frontend_state_t *frontend_st = &frontend_driver_st;
frontend_ctx_driver_t *frontend = frontend_st->current_frontend_ctx;
return frontend && frontend->set_gamemode;
}
bool frontend_driver_set_gamemode(bool on)
{
frontend_state_t *frontend_st = &frontend_driver_st;
frontend_ctx_driver_t *frontend = frontend_st->current_frontend_ctx;
if (frontend && frontend->set_gamemode)
return frontend->set_gamemode(on);
return false;
}
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