Initial commit

1 files changed, 231 insertions, 0 deletions

diff --git a/contrib/SDL-3.2.8/src/filesystem/windows/SDL_sysfsops.c b/contrib/SDL-3.2.8/src/filesystem/windows/SDL_sysfsops.c
new file mode 100644
index 0000000..9c48ba9
--- /dev/null
+++ b/contrib/SDL-3.2.8/src/filesystem/windows/SDL_sysfsops.c
@@ -0,0 +1,231 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2025 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"
+
+#if defined(SDL_FSOPS_WINDOWS)
+
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+// System dependent filesystem routines
+
+#include "../../core/windows/SDL_windows.h"
+#include "../SDL_sysfilesystem.h"
+
+bool SDL_SYS_EnumerateDirectory(const char *path, SDL_EnumerateDirectoryCallback cb, void *userdata)
+{
+    SDL_EnumerationResult result = SDL_ENUM_CONTINUE;
+    if (*path == '\0') {  // if empty (completely at the root), we need to enumerate drive letters.
+        const DWORD drives = GetLogicalDrives();
+        char name[] = { 0, ':', '\\', '\0' };
+        for (int i = 'A'; (result == SDL_ENUM_CONTINUE) && (i <= 'Z'); i++) {
+            if (drives & (1 << (i - 'A'))) {
+                name[0] = (char) i;
+                result = cb(userdata, "", name);
+            }
+        }
+    } else {
+        // you need a wildcard to enumerate through FindFirstFileEx(), but the wildcard is only checked in the
+        // filename element at the end of the path string, so always tack on a "\\*" to get everything, and
+        // also prevent any wildcards inserted by the app from being respected.
+        char *pattern = NULL;
+        int patternlen = SDL_asprintf(&pattern, "%s\\\\", path);  // we'll replace that second '\\' in the trimdown.
+        if ((patternlen == -1) || (!pattern)) {
+            return false;
+        }
+
+        // trim down to a single path separator at the end, in case the caller added one or more.
+        patternlen--;
+        while ((patternlen >= 0) && ((pattern[patternlen] == '\\') || (pattern[patternlen] == '/'))) {
+            pattern[patternlen--] ='\0';
+        }
+        pattern[++patternlen] = '\\';
+        pattern[++patternlen] = '*';
+        pattern[++patternlen] = '\0';
+
+        WCHAR *wpattern = WIN_UTF8ToStringW(pattern);
+        if (!wpattern) {
+            SDL_free(pattern);
+            return false;
+        }
+
+        pattern[--patternlen] = '\0';  // chop off the '*' so we just have the dirname with a path separator.
+
+        WIN32_FIND_DATAW entw;
+        HANDLE dir = FindFirstFileExW(wpattern, FindExInfoStandard, &entw, FindExSearchNameMatch, NULL, 0);
+        SDL_free(wpattern);
+        if (dir == INVALID_HANDLE_VALUE) {
+            SDL_free(pattern);
+            return WIN_SetError("Failed to enumerate directory");
+        }
+
+        do {
+            const WCHAR *fn = entw.cFileName;
+
+            if (fn[0] == '.') {  // ignore "." and ".."
+                if ((fn[1] == '\0') || ((fn[1] == '.') && (fn[2] == '\0'))) {
+                    continue;
+                }
+            }
+
+            char *utf8fn = WIN_StringToUTF8W(fn);
+            if (!utf8fn) {
+                result = SDL_ENUM_FAILURE;
+            } else {
+                result = cb(userdata, pattern, utf8fn);
+                SDL_free(utf8fn);
+            }
+        } while ((result == SDL_ENUM_CONTINUE) && (FindNextFileW(dir, &entw) != 0));
+
+        FindClose(dir);
+        SDL_free(pattern);
+    }
+
+    return (result != SDL_ENUM_FAILURE);
+}
+
+bool SDL_SYS_RemovePath(const char *path)
+{
+    WCHAR *wpath = WIN_UTF8ToStringW(path);
+    if (!wpath) {
+        return false;
+    }
+
+    WIN32_FILE_ATTRIBUTE_DATA info;
+    if (!GetFileAttributesExW(wpath, GetFileExInfoStandard, &info)) {
+        SDL_free(wpath);
+        if (GetLastError() == ERROR_FILE_NOT_FOUND) {
+            // Note that ERROR_PATH_NOT_FOUND means a parent dir is missing, and we consider that an error.
+            return true;  // thing is already gone, call it a success.
+        }
+        return WIN_SetError("Couldn't get path's attributes");
+    }
+
+    const int isdir = (info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY);
+    const BOOL rc = isdir ? RemoveDirectoryW(wpath) : DeleteFileW(wpath);
+    SDL_free(wpath);
+    if (!rc) {
+        return WIN_SetError("Couldn't remove path");
+    }
+    return true;
+}
+
+bool SDL_SYS_RenamePath(const char *oldpath, const char *newpath)
+{
+    WCHAR *woldpath = WIN_UTF8ToStringW(oldpath);
+    if (!woldpath) {
+        return false;
+    }
+
+    WCHAR *wnewpath = WIN_UTF8ToStringW(newpath);
+    if (!wnewpath) {
+        SDL_free(woldpath);
+        return false;
+    }
+
+    const BOOL rc = MoveFileExW(woldpath, wnewpath, MOVEFILE_REPLACE_EXISTING);
+    SDL_free(wnewpath);
+    SDL_free(woldpath);
+    if (!rc) {
+        return WIN_SetError("Couldn't rename path");
+    }
+    return true;
+}
+
+bool SDL_SYS_CopyFile(const char *oldpath, const char *newpath)
+{
+    WCHAR *woldpath = WIN_UTF8ToStringW(oldpath);
+    if (!woldpath) {
+        return false;
+    }
+
+    WCHAR *wnewpath = WIN_UTF8ToStringW(newpath);
+    if (!wnewpath) {
+        SDL_free(woldpath);
+        return false;
+    }
+
+    const BOOL rc = CopyFileExW(woldpath, wnewpath, NULL, NULL, NULL, COPY_FILE_ALLOW_DECRYPTED_DESTINATION|COPY_FILE_NO_BUFFERING);
+    SDL_free(wnewpath);
+    SDL_free(woldpath);
+    if (!rc) {
+        return WIN_SetError("Couldn't copy path");
+    }
+    return true;
+}
+
+bool SDL_SYS_CreateDirectory(const char *path)
+{
+    WCHAR *wpath = WIN_UTF8ToStringW(path);
+    if (!wpath) {
+        return false;
+    }
+
+    DWORD rc = CreateDirectoryW(wpath, NULL);
+    if (!rc && (GetLastError() == ERROR_ALREADY_EXISTS)) {
+        WIN32_FILE_ATTRIBUTE_DATA winstat;
+        if (GetFileAttributesExW(wpath, GetFileExInfoStandard, &winstat)) {
+            if (winstat.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
+                rc = 1;  // exists and is already a directory: cool.
+            }
+        }
+    }
+
+    SDL_free(wpath);
+    if (!rc) {
+        return WIN_SetError("Couldn't create directory");
+    }
+    return true;
+}
+
+bool SDL_SYS_GetPathInfo(const char *path, SDL_PathInfo *info)
+{
+    WCHAR *wpath = WIN_UTF8ToStringW(path);
+    if (!wpath) {
+        return false;
+    }
+
+    WIN32_FILE_ATTRIBUTE_DATA winstat;
+    const BOOL rc = GetFileAttributesExW(wpath, GetFileExInfoStandard, &winstat);
+    SDL_free(wpath);
+    if (!rc) {
+        return WIN_SetError("Can't stat");
+    }
+
+    if (winstat.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
+        info->type = SDL_PATHTYPE_DIRECTORY;
+        info->size = 0;
+    } else if (winstat.dwFileAttributes & (FILE_ATTRIBUTE_OFFLINE | FILE_ATTRIBUTE_DEVICE)) {
+        info->type = SDL_PATHTYPE_OTHER;
+        info->size = ((((Uint64) winstat.nFileSizeHigh) << 32) | winstat.nFileSizeLow);
+    } else {
+        info->type = SDL_PATHTYPE_FILE;
+        info->size = ((((Uint64) winstat.nFileSizeHigh) << 32) | winstat.nFileSizeLow);
+    }
+
+    info->create_time = SDL_TimeFromWindows(winstat.ftCreationTime.dwLowDateTime, winstat.ftCreationTime.dwHighDateTime);
+    info->modify_time = SDL_TimeFromWindows(winstat.ftLastWriteTime.dwLowDateTime, winstat.ftLastWriteTime.dwHighDateTime);
+    info->access_time = SDL_TimeFromWindows(winstat.ftLastAccessTime.dwLowDateTime, winstat.ftLastAccessTime.dwHighDateTime);
+
+    return true;
+}
+
+#endif // SDL_FSOPS_WINDOWS
+