| /* |
| Simple DirectMedia Layer |
| Copyright (C) 1997-2021 Sam Lantinga <slouken@libsdl.org> |
| |
| This software is provided 'as-is', without any express or implied |
| warranty. In no event will the authors be held liable for any damages |
| arising from the use of this software. |
| |
| Permission is granted to anyone to use this software for any purpose, |
| including commercial applications, and to alter it and redistribute it |
| freely, subject to the following restrictions: |
| |
| 1. The origin of this software must not be misrepresented; you must not |
| claim that you wrote the original software. If you use this software |
| in a product, an acknowledgment in the product documentation would be |
| appreciated but is not required. |
| 2. Altered source versions must be plainly marked as such, and must not be |
| misrepresented as being the original software. |
| 3. This notice may not be removed or altered from any source distribution. |
| */ |
| #include "../../SDL_internal.h" |
| |
| #ifdef SDL_FILESYSTEM_WINDOWS |
| |
| /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ |
| /* System dependent filesystem routines */ |
| |
| #include "../../core/windows/SDL_windows.h" |
| #include <shlobj.h> |
| |
| #include "SDL_error.h" |
| #include "SDL_stdinc.h" |
| #include "SDL_filesystem.h" |
| |
| char * |
| SDL_GetBasePath(void) |
| { |
| typedef DWORD (WINAPI *GetModuleFileNameExW_t)(HANDLE, HMODULE, LPWSTR, DWORD); |
| GetModuleFileNameExW_t pGetModuleFileNameExW; |
| DWORD buflen = 128; |
| WCHAR *path = NULL; |
| HANDLE psapi = LoadLibrary(TEXT("psapi.dll")); |
| char *retval = NULL; |
| DWORD len = 0; |
| int i; |
| |
| if (!psapi) { |
| WIN_SetError("Couldn't load psapi.dll"); |
| return NULL; |
| } |
| |
| pGetModuleFileNameExW = (GetModuleFileNameExW_t)GetProcAddress(psapi, "GetModuleFileNameExW"); |
| if (!pGetModuleFileNameExW) { |
| WIN_SetError("Couldn't find GetModuleFileNameExW"); |
| FreeLibrary(psapi); |
| return NULL; |
| } |
| |
| while (SDL_TRUE) { |
| void *ptr = SDL_realloc(path, buflen * sizeof (WCHAR)); |
| if (!ptr) { |
| SDL_free(path); |
| FreeLibrary(psapi); |
| SDL_OutOfMemory(); |
| return NULL; |
| } |
| |
| path = (WCHAR *) ptr; |
| |
| len = pGetModuleFileNameExW(GetCurrentProcess(), NULL, path, buflen); |
| if (len != buflen) { |
| break; |
| } |
| |
| /* buffer too small? Try again. */ |
| buflen *= 2; |
| } |
| |
| FreeLibrary(psapi); |
| |
| if (len == 0) { |
| SDL_free(path); |
| WIN_SetError("Couldn't locate our .exe"); |
| return NULL; |
| } |
| |
| for (i = len-1; i > 0; i--) { |
| if (path[i] == '\\') { |
| break; |
| } |
| } |
| |
| SDL_assert(i > 0); /* Should have been an absolute path. */ |
| path[i+1] = '\0'; /* chop off filename. */ |
| |
| retval = WIN_StringToUTF8W(path); |
| SDL_free(path); |
| |
| return retval; |
| } |
| |
| char * |
| SDL_GetPrefPath(const char *org, const char *app) |
| { |
| /* |
| * Vista and later has a new API for this, but SHGetFolderPath works there, |
| * and apparently just wraps the new API. This is the new way to do it: |
| * |
| * SHGetKnownFolderPath(FOLDERID_RoamingAppData, KF_FLAG_CREATE, |
| * NULL, &wszPath); |
| */ |
| |
| WCHAR path[MAX_PATH]; |
| char *retval = NULL; |
| WCHAR* worg = NULL; |
| WCHAR* wapp = NULL; |
| size_t new_wpath_len = 0; |
| BOOL api_result = FALSE; |
| |
| if (!app) { |
| SDL_InvalidParamError("app"); |
| return NULL; |
| } |
| if (!org) { |
| org = ""; |
| } |
| |
| if (!SUCCEEDED(SHGetFolderPathW(NULL, CSIDL_APPDATA | CSIDL_FLAG_CREATE, NULL, 0, path))) { |
| WIN_SetError("Couldn't locate our prefpath"); |
| return NULL; |
| } |
| |
| worg = WIN_UTF8ToStringW(org); |
| if (worg == NULL) { |
| SDL_OutOfMemory(); |
| return NULL; |
| } |
| |
| wapp = WIN_UTF8ToStringW(app); |
| if (wapp == NULL) { |
| SDL_free(worg); |
| SDL_OutOfMemory(); |
| return NULL; |
| } |
| |
| new_wpath_len = lstrlenW(worg) + lstrlenW(wapp) + lstrlenW(path) + 3; |
| |
| if ((new_wpath_len + 1) > MAX_PATH) { |
| SDL_free(worg); |
| SDL_free(wapp); |
| WIN_SetError("Path too long."); |
| return NULL; |
| } |
| |
| if (*worg) { |
| lstrcatW(path, L"\\"); |
| lstrcatW(path, worg); |
| } |
| SDL_free(worg); |
| |
| api_result = CreateDirectoryW(path, NULL); |
| if (api_result == FALSE) { |
| if (GetLastError() != ERROR_ALREADY_EXISTS) { |
| SDL_free(wapp); |
| WIN_SetError("Couldn't create a prefpath."); |
| return NULL; |
| } |
| } |
| |
| lstrcatW(path, L"\\"); |
| lstrcatW(path, wapp); |
| SDL_free(wapp); |
| |
| api_result = CreateDirectoryW(path, NULL); |
| if (api_result == FALSE) { |
| if (GetLastError() != ERROR_ALREADY_EXISTS) { |
| WIN_SetError("Couldn't create a prefpath."); |
| return NULL; |
| } |
| } |
| |
| lstrcatW(path, L"\\"); |
| |
| retval = WIN_StringToUTF8W(path); |
| |
| return retval; |
| } |
| |
| #endif /* SDL_FILESYSTEM_WINDOWS */ |
| |
| /* vi: set ts=4 sw=4 expandtab: */ |