diff options
Diffstat (limited to '3rdparty/SDL2/src/filesystem/windows/SDL_sysfilesystem.c')
-rw-r--r-- | 3rdparty/SDL2/src/filesystem/windows/SDL_sysfilesystem.c | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/3rdparty/SDL2/src/filesystem/windows/SDL_sysfilesystem.c b/3rdparty/SDL2/src/filesystem/windows/SDL_sysfilesystem.c new file mode 100644 index 00000000000..fd942d75fa8 --- /dev/null +++ b/3rdparty/SDL2/src/filesystem/windows/SDL_sysfilesystem.c @@ -0,0 +1,182 @@ +/* + Simple DirectMedia Layer + Copyright (C) 1997-2016 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_assert.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(L"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_StringToUTF8(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 (!SUCCEEDED(SHGetFolderPathW(NULL, CSIDL_APPDATA | CSIDL_FLAG_CREATE, NULL, 0, path))) { + WIN_SetError("Couldn't locate our prefpath"); + return NULL; + } + + worg = WIN_UTF8ToString(org); + if (worg == NULL) { + SDL_OutOfMemory(); + return NULL; + } + + wapp = WIN_UTF8ToString(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; + } + + 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_StringToUTF8(path); + + return retval; +} + +#endif /* SDL_FILESYSTEM_WINDOWS */ + +/* vi: set ts=4 sw=4 expandtab: */ |