176 lines
4.5 KiB
C
176 lines
4.5 KiB
C
/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2022 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "../../SDL_internal.h"
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#ifdef SDL_FILESYSTEM_WINDOWS
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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/* System dependent filesystem routines */
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#include "../../core/windows/SDL_windows.h"
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#include <shlobj.h>
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#include "SDL_error.h"
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#include "SDL_stdinc.h"
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#include "SDL_filesystem.h"
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char *
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SDL_GetBasePath(void)
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{
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DWORD buflen = 128;
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WCHAR *path = NULL;
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char *retval = NULL;
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DWORD len = 0;
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int i;
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while (SDL_TRUE) {
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void *ptr = SDL_realloc(path, buflen * sizeof (WCHAR));
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if (!ptr) {
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SDL_free(path);
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SDL_OutOfMemory();
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return NULL;
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}
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path = (WCHAR *) ptr;
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len = GetModuleFileName(NULL, path, buflen);
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/* if it truncated, then len >= buflen - 1 */
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/* if there was enough room (or failure), len < buflen - 1 */
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if (len < buflen - 1) {
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break;
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}
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/* buffer too small? Try again. */
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buflen *= 2;
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}
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if (len == 0) {
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SDL_free(path);
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WIN_SetError("Couldn't locate our .exe");
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return NULL;
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}
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for (i = len-1; i > 0; i--) {
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if (path[i] == '\\') {
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break;
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}
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}
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SDL_assert(i > 0); /* Should have been an absolute path. */
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path[i+1] = '\0'; /* chop off filename. */
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retval = WIN_StringToUTF8W(path);
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SDL_free(path);
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return retval;
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}
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char *
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SDL_GetPrefPath(const char *org, const char *app)
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{
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/*
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* Vista and later has a new API for this, but SHGetFolderPath works there,
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* and apparently just wraps the new API. This is the new way to do it:
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*
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* SHGetKnownFolderPath(FOLDERID_RoamingAppData, KF_FLAG_CREATE,
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* NULL, &wszPath);
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*/
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WCHAR path[MAX_PATH];
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char *retval = NULL;
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WCHAR* worg = NULL;
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WCHAR* wapp = NULL;
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size_t new_wpath_len = 0;
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BOOL api_result = FALSE;
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if (!app) {
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SDL_InvalidParamError("app");
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return NULL;
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}
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if (!org) {
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org = "";
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}
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if (!SUCCEEDED(SHGetFolderPathW(NULL, CSIDL_APPDATA | CSIDL_FLAG_CREATE, NULL, 0, path))) {
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WIN_SetError("Couldn't locate our prefpath");
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return NULL;
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}
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worg = WIN_UTF8ToStringW(org);
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if (worg == NULL) {
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SDL_OutOfMemory();
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return NULL;
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}
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wapp = WIN_UTF8ToStringW(app);
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if (wapp == NULL) {
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SDL_free(worg);
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SDL_OutOfMemory();
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return NULL;
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}
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new_wpath_len = SDL_wcslen(worg) + SDL_wcslen(wapp) + SDL_wcslen(path) + 3;
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if ((new_wpath_len + 1) > MAX_PATH) {
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SDL_free(worg);
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SDL_free(wapp);
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WIN_SetError("Path too long.");
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return NULL;
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}
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if (*worg) {
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SDL_wcslcat(path, L"\\", SDL_arraysize(path));
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SDL_wcslcat(path, worg, SDL_arraysize(path));
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}
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SDL_free(worg);
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api_result = CreateDirectoryW(path, NULL);
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if (api_result == FALSE) {
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if (GetLastError() != ERROR_ALREADY_EXISTS) {
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SDL_free(wapp);
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WIN_SetError("Couldn't create a prefpath.");
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return NULL;
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}
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}
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SDL_wcslcat(path, L"\\", SDL_arraysize(path));
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SDL_wcslcat(path, wapp, SDL_arraysize(path));
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SDL_free(wapp);
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api_result = CreateDirectoryW(path, NULL);
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if (api_result == FALSE) {
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if (GetLastError() != ERROR_ALREADY_EXISTS) {
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WIN_SetError("Couldn't create a prefpath.");
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return NULL;
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}
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}
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SDL_wcslcat(path, L"\\", SDL_arraysize(path));
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retval = WIN_StringToUTF8W(path);
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return retval;
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}
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#endif /* SDL_FILESYSTEM_WINDOWS */
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/* vi: set ts=4 sw=4 expandtab: */
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