Start of global config infrastructure

src/include/86box/plat.h

@@ -106,6 +106,7 @@ extern int      plat_getcwd(char *bufp, int max);
 extern int      plat_chdir(char *path);
 extern void     plat_tempfile(char *bufp, char *prefix, char *suffix);
 extern void     plat_get_exe_name(char *s, int size);
+extern void     plat_get_global_config_dir(char* strptr);
 extern void     plat_init_rom_paths();
 extern int      plat_dir_check(char *path);
 extern int      plat_dir_create(char *path);

src/qt/qt_platform.cpp

@@ -609,6 +609,18 @@ plat_chdir(char *path)
     return QDir::setCurrent(QString(path)) ? 0 : -1;
 }
 
+void
+plat_get_global_config_dir(char* strptr)
+{
+#ifdef __APPLE__
+    auto dir = QDir(QStandardPaths::standardLocations(QStandardPaths::GenericConfigLocation)[0] + "/net.86Box.86Box/");
+#else
+    auto dir = QDir(QStandardPaths::standardLocations(QStandardPaths::GenericConfigLocation)[0] + "/86Box/");
+#endif
+    if (!dir.exists()) dir.mkpath(".");
+    strncpy(strptr, dir.canonicalPath().toUtf8().constData(), 1024);
+}
+
 void
 plat_init_rom_paths()
 {

src/unix/unix.c

@@ -810,6 +810,18 @@ plat_init_rom_paths()
 #endif
 }
 
+void
+plat_get_global_config_dir(char *strptr)
+{
+#ifdef __APPLE__
+    char* prefPath = SDL_GetPrefPath(NULL, "net.86Box.86Box")
+#else
+    char* prefPath = SDL_GetPrefPath(NULL, "86Box");
+#endif
+    strncpy(strptr, prefPath, 1024);
+    path_slash(strptr);
+}
+
 bool
 process_media_commands_3(uint8_t *id, char *fn, uint8_t *wp, int cmdargc)
 {

src/win/win.c

@@ -882,6 +882,26 @@ plat_mmap(size_t size, uint8_t executable)
     return VirtualAlloc(NULL, size, MEM_COMMIT, executable ? PAGE_EXECUTE_READWRITE : PAGE_READWRITE);
 }
 
+void
+plat_get_global_config_dir(char* strptr)
+{
+    wchar_t appdata_dir[1024] = { L'\0' };
+
+    if (_wgetenv(L"LOCALAPPDATA") && _wgetenv(L"LOCALAPPDATA")[0] != L'\0') {
+        size_t len                 = 0;
+        wcsncpy(appdata_dir, _wgetenv(L"LOCALAPPDATA"), 1024);
+        len = wcslen(appdata_dir);
+        if (appdata_dir[len - 1] != L'\\') {
+            appdata_dir[len]     = L'\\';
+            appdata_dir[len + 1] = L'\0';
+        }
+        wcscat(appdata_dir, L"86box");
+        CreateDirectoryW(appdata_dir, NULL);
+        wcscat(appdata_dir, L"\\");
+        c16stombs(strptr, appdata_dir, 1024);
+    }
+}
+
 void
 plat_init_rom_paths()
 {