Atmosphere/stratosphere/dmnt/source/dmnt_config.cpp

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/*
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* Copyright (c) 2018-2019 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
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#include <switch.h>
#include <string.h>
#include <stratosphere.hpp>
#include "dmnt_hid.hpp"
#include "dmnt_config.hpp"
#include "ini.h"
/* Support variables. */
static OverrideKey g_default_cheat_enable_key = {
.key_combination = KEY_L,
.override_by_default = true
};
/* Static buffer for loader.ini contents at runtime. */
static char g_config_ini_data[0x800];
static OverrideKey ParseOverrideKey(const char *value) {
OverrideKey cfg;
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/* Parse on by default. */
if (value[0] == '!') {
cfg.override_by_default = true;
value++;
} else {
cfg.override_by_default = false;
}
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/* Parse key combination. */
if (strcasecmp(value, "A") == 0) {
cfg.key_combination = KEY_A;
} else if (strcasecmp(value, "B") == 0) {
cfg.key_combination = KEY_B;
} else if (strcasecmp(value, "X") == 0) {
cfg.key_combination = KEY_X;
} else if (strcasecmp(value, "Y") == 0) {
cfg.key_combination = KEY_Y;
} else if (strcasecmp(value, "LS") == 0) {
cfg.key_combination = KEY_LSTICK;
} else if (strcasecmp(value, "RS") == 0) {
cfg.key_combination = KEY_RSTICK;
} else if (strcasecmp(value, "L") == 0) {
cfg.key_combination = KEY_L;
} else if (strcasecmp(value, "R") == 0) {
cfg.key_combination = KEY_R;
} else if (strcasecmp(value, "ZL") == 0) {
cfg.key_combination = KEY_ZL;
} else if (strcasecmp(value, "ZR") == 0) {
cfg.key_combination = KEY_ZR;
} else if (strcasecmp(value, "PLUS") == 0) {
cfg.key_combination = KEY_PLUS;
} else if (strcasecmp(value, "MINUS") == 0) {
cfg.key_combination = KEY_MINUS;
} else if (strcasecmp(value, "DLEFT") == 0) {
cfg.key_combination = KEY_DLEFT;
} else if (strcasecmp(value, "DUP") == 0) {
cfg.key_combination = KEY_DUP;
} else if (strcasecmp(value, "DRIGHT") == 0) {
cfg.key_combination = KEY_DRIGHT;
} else if (strcasecmp(value, "DDOWN") == 0) {
cfg.key_combination = KEY_DDOWN;
} else if (strcasecmp(value, "SL") == 0) {
cfg.key_combination = KEY_SL;
} else if (strcasecmp(value, "SR") == 0) {
cfg.key_combination = KEY_SR;
} else {
cfg.key_combination = 0;
}
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return cfg;
}
static int DmntIniHandler(void *user, const char *section, const char *name, const char *value) {
/* Taken and modified, with love, from Rajkosto's implementation. */
if (strcasecmp(section, "default_config") == 0) {
if (strcasecmp(name, "cheat_enable_key") == 0) {
g_default_cheat_enable_key = ParseOverrideKey(value);
}
} else {
return 0;
}
return 1;
}
static int DmntTitleSpecificIniHandler(void *user, const char *section, const char *name, const char *value) {
/* We'll output an override key when relevant. */
OverrideKey *user_cfg = reinterpret_cast<OverrideKey *>(user);
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if (strcasecmp(section, "override_config") == 0) {
if (strcasecmp(name, "cheat_enable_key") == 0) {
*user_cfg = ParseOverrideKey(value);
}
} else {
return 0;
}
return 1;
}
void DmntConfigManager::RefreshConfiguration() {
FILE *config = fopen("sdmc:/atmosphere/loader.ini", "r");
if (config == NULL) {
return;
}
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memset(g_config_ini_data, 0, sizeof(g_config_ini_data));
fread(g_config_ini_data, 1, sizeof(g_config_ini_data) - 1, config);
fclose(config);
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ini_parse_string(g_config_ini_data, DmntIniHandler, NULL);
}
OverrideKey DmntConfigManager::GetTitleCheatEnableKey(u64 tid) {
OverrideKey cfg = g_default_cheat_enable_key;
char path[FS_MAX_PATH+1] = {0};
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snprintf(path, FS_MAX_PATH, "sdmc:/atmosphere/titles/%016lx/config.ini", tid);
FILE *config = fopen(path, "r");
if (config != NULL) {
ON_SCOPE_EXIT { fclose(config); };
/* Parse current title ini. */
ini_parse_file(config, DmntTitleSpecificIniHandler, &cfg);
}
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return cfg;
}
static bool HasOverrideKey(OverrideKey *cfg) {
u64 kDown = 0;
bool keys_triggered = (R_SUCCEEDED(HidManagement::GetKeysDown(&kDown)) && ((kDown & cfg->key_combination) != 0));
return (cfg->override_by_default ^ keys_triggered);
}
bool DmntConfigManager::HasCheatEnableButton(u64 tid) {
/* Unconditionally refresh loader.ini contents. */
RefreshConfiguration();
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OverrideKey title_cfg = GetTitleCheatEnableKey(tid);
return HasOverrideKey(&title_cfg);
}