Replace Win32 file IO with UWP safe variants and add support for getting drives to UWP build

.gitignore

@@ -43,6 +43,7 @@ PPSSPPDebugARM64.exe.manifest
 PPSSPPDebugARM.exe.manifest
 assets/flash0
 UWP/icph
+UWP/*.ipch
 UWP/Content/*
 !UWP/Content/.empty
 UWP/.vs

Common/File/DirListing.cpp

@@ -4,6 +4,9 @@
 #define WIN32_LEAN_AND_MEAN
 #include <Windows.h>
 #include <direct.h>
+#if PPSSPP_PLATFORM(UWP)
+#include <fileapifromapp.h>
+#endif
 #else
 #include <strings.h>
 #include <dirent.h>
@@ -62,7 +65,11 @@ bool GetFileInfo(const Path &path, FileInfo * fileInfo) {
 
 #if PPSSPP_PLATFORM(WINDOWS)
 	WIN32_FILE_ATTRIBUTE_DATA attrs;
+#if PPSSPP_PLATFORM(UWP)
+	if (!GetFileAttributesExFromAppW(path.ToWString().c_str(), GetFileExInfoStandard, &attrs)) {
+#else
 	if (!GetFileAttributesExW(path.ToWString().c_str(), GetFileExInfoStandard, &attrs)) {
+#endif
 		fileInfo->size = 0;
 		fileInfo->isDirectory = false;
 		fileInfo->exists = false;
@@ -206,7 +213,11 @@ bool GetFilesInDir(const Path &directory, std::vector<FileInfo> *files, const ch
 	}
 	// Find the first file in the directory.
 	WIN32_FIND_DATA ffd;
+#if PPSSPP_PLATFORM(UWP)
+	HANDLE hFind = FindFirstFileExFromAppW((directory.ToWString() + L"\\*").c_str(), FindExInfoStandard, &ffd, FindExSearchNameMatch, NULL, 0);
+#else
 	HANDLE hFind = FindFirstFileEx((directory.ToWString() + L"\\*").c_str(), FindExInfoStandard, &ffd, FindExSearchNameMatch, NULL, 0);
+#endif
 	if (hFind == INVALID_HANDLE_VALUE) {
 		return 0;
 	}
@@ -289,11 +300,21 @@ bool GetFilesInDir(const Path &directory, std::vector<FileInfo> *files, const ch
 // Returns a vector with the device names
 std::vector<std::string> GetWindowsDrives()
 {
-#if PPSSPP_PLATFORM(UWP)
-	return std::vector<std::string>();  // TODO UWP http://stackoverflow.com/questions/37404405/how-to-get-logical-drives-names-in-windows-10
-#else
 	std::vector<std::string> drives;
 
+#if PPSSPP_PLATFORM(UWP)
+	DWORD logicaldrives = GetLogicalDrives();
+	for (int i = 0; i < 26; i++)
+	{
+		if (logicaldrives & (1 << i))
+		{
+			CHAR driveName[] = { TEXT('A') + i, TEXT(':'), TEXT('\\'), TEXT('\0') };
+			std::string str(driveName);
+			drives.push_back(driveName);
+		}
+	}
+	return drives;
+#else
 	const DWORD buffsize = GetLogicalDriveStrings(0, NULL);
 	std::vector<wchar_t> buff(buffsize);
 	if (GetLogicalDriveStrings(buffsize, buff.data()) == buffsize - 1)

Common/File/FileUtil.cpp

@@ -51,6 +51,9 @@
 #include <commdlg.h>	// for GetSaveFileName
 #include <io.h>
 #include <direct.h>		// getcwd
+#if PPSSPP_PLATFORM(UWP)
+#include <fileapifromapp.h>
+#endif
 #else
 #include <sys/param.h>
 #include <sys/types.h>
@@ -253,7 +256,7 @@ static bool ResolvePathVista(const std::wstring &path, wchar_t *buf, DWORD bufSi
 
 	if (getFinalPathNameByHandleW) {
 #if PPSSPP_PLATFORM(UWP)
-		HANDLE hFile = CreateFile2(path.c_str(), GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING, nullptr);
+		HANDLE hFile = CreateFile2FromAppW(path.c_str(), GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING, nullptr);
 #else
 		HANDLE hFile = CreateFile(path.c_str(), GENERIC_READ, FILE_SHARE_READ, nullptr, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, nullptr);
 #endif
@@ -367,9 +370,15 @@ bool Exists(const Path &path) {
 	int OldMode = SetErrorMode(SEM_FAILCRITICALERRORS);
 #endif
 	WIN32_FILE_ATTRIBUTE_DATA data{};
+#if PPSSPP_PLATFORM(UWP)
+	if (!GetFileAttributesExFromAppW(path.ToWString().c_str(), GetFileExInfoStandard, &data) || data.dwFileAttributes == INVALID_FILE_ATTRIBUTES) {
+		return false;
+	}
+#else
 	if (!GetFileAttributesEx(path.ToWString().c_str(), GetFileExInfoStandard, &data) || data.dwFileAttributes == INVALID_FILE_ATTRIBUTES) {
 		return false;
 	}
+#endif
 #if !PPSSPP_PLATFORM(UWP)
 	SetErrorMode(OldMode);
 #endif
@@ -399,7 +408,11 @@ bool IsDirectory(const Path &filename) {
 
 #if defined(_WIN32)
 	WIN32_FILE_ATTRIBUTE_DATA data{};
+#if PPSSPP_PLATFORM(UWP)
+	if (!GetFileAttributesExFromAppW(filename.ToWString().c_str(), GetFileExInfoStandard, &data) || data.dwFileAttributes == INVALID_FILE_ATTRIBUTES) {
+#else
 	if (!GetFileAttributesEx(filename.ToWString().c_str(), GetFileExInfoStandard, &data) || data.dwFileAttributes == INVALID_FILE_ATTRIBUTES) {
+#endif
 		auto err = GetLastError();
 		if (err != ERROR_FILE_NOT_FOUND) {
 			WARN_LOG(COMMON, "GetFileAttributes failed on %s: %08x %s", filename.ToVisualString().c_str(), (uint32_t)err, GetStringErrorMsg(err).c_str());
@@ -448,10 +461,17 @@ bool Delete(const Path &filename) {
 	}
 
 #ifdef _WIN32
+#if PPSSPP_PLATFORM(UWP)
+	if (!DeleteFileFromAppW(filename.ToWString().c_str())) {
+		WARN_LOG(COMMON, "Delete: DeleteFile failed on %s: %s", filename.c_str(), GetLastErrorMsg().c_str());
+		return false;
+	}
+#else
 	if (!DeleteFile(filename.ToWString().c_str())) {
 		WARN_LOG(COMMON, "Delete: DeleteFile failed on %s: %s", filename.c_str(), GetLastErrorMsg().c_str());
 		return false;
 	}
+#endif
 #else
 	if (unlink(filename.c_str()) == -1) {
 		WARN_LOG(COMMON, "Delete: unlink failed on %s: %s", 
@@ -496,8 +516,14 @@ bool CreateDir(const Path &path) {
 
 	DEBUG_LOG(COMMON, "CreateDir('%s')", path.c_str());
 #ifdef _WIN32
+#if PPSSPP_PLATFORM(UWP)
+	if (CreateDirectoryFromAppW(path.ToWString().c_str(), NULL))
+		return true;
+#else
 	if (::CreateDirectory(path.ToWString().c_str(), NULL))
 		return true;
+#endif
+
 	DWORD error = GetLastError();
 	if (error == ERROR_ALREADY_EXISTS) {
 		WARN_LOG(COMMON, "CreateDir: CreateDirectory failed on %s: already exists", path.c_str());
@@ -585,8 +611,13 @@ bool DeleteDir(const Path &path) {
 	}
 
 #ifdef _WIN32
+#if PPSSPP_PLATFORM(UWP)
+	if (RemoveDirectoryFromAppW(path.ToWString().c_str()))
+		return true;
+#else
 	if (::RemoveDirectory(path.ToWString().c_str()))
 		return true;
+#endif
 #else
 	if (rmdir(path.c_str()) == 0)
 		return true;
@@ -662,9 +693,8 @@ bool Copy(const Path &srcFilename, const Path &destFilename) {
 	INFO_LOG(COMMON, "Copy: %s --> %s", srcFilename.c_str(), destFilename.c_str());
 #ifdef _WIN32
 #if PPSSPP_PLATFORM(UWP)
-	if (CopyFile2(srcFilename.ToWString().c_str(), destFilename.ToWString().c_str(), nullptr))
+	if (CopyFileFromAppW(srcFilename.ToWString().c_str(), destFilename.ToWString().c_str(), FALSE))
 		return true;
-	return false;
 #else
 	if (CopyFile(srcFilename.ToWString().c_str(), destFilename.ToWString().c_str(), FALSE))
 		return true;
@@ -796,7 +826,11 @@ uint64_t GetFileSize(const Path &filename) {
 
 #if defined(_WIN32) && defined(UNICODE)
 	WIN32_FILE_ATTRIBUTE_DATA attr;
+#if PPSSPP_PLATFORM(UWP)
+	if (!GetFileAttributesExFromAppW(filename.ToWString().c_str(), GetFileExInfoStandard, &attr))
+#else
 	if (!GetFileAttributesEx(filename.ToWString().c_str(), GetFileExInfoStandard, &attr))
+#endif
 		return 0;
 	if (attr.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
 		return 0;

Core/FileLoaders/DiskCachingFileLoader.cpp

@@ -33,6 +33,10 @@
 #include "Core/FileLoaders/DiskCachingFileLoader.h"
 #include "Core/System.h"
 
+#if PPSSPP_PLATFORM(UWP)
+#include <fileapifromapp.h>
+#endif
+
 #if PPSSPP_PLATFORM(SWITCH)
 // Far from optimal, but I guess it works...
 #define fseeko fseek
@@ -827,7 +831,11 @@ void DiskCachingFileLoaderCache::GarbageCollectCacheFiles(u64 goalBytes) {
 
 #ifdef _WIN32
 		const std::wstring w32path = file.fullName.ToWString();
+#if PPSSPP_PLATFORM(UWP)
+		bool success = DeleteFileFromAppW(w32path.c_str()) != 0;
+#else
 		bool success = DeleteFileW(w32path.c_str()) != 0;
+#endif
 #else
 		bool success = unlink(file.fullName.c_str()) == 0;
 #endif

Core/FileLoaders/LocalFileLoader.cpp

@@ -31,6 +31,9 @@
 
 #ifdef _WIN32
 #include "Common/CommonWindows.h"
+#if PPSSPP_PLATFORM(UWP)
+#include <fileapifromapp.h>
+#endif
 #else
 #include <fcntl.h>
 #endif
@@ -85,7 +88,7 @@ LocalFileLoader::LocalFileLoader(const Path &filename)
 
 	const DWORD access = GENERIC_READ, share = FILE_SHARE_READ, mode = OPEN_EXISTING, flags = FILE_ATTRIBUTE_NORMAL;
 #if PPSSPP_PLATFORM(UWP)
-	handle_ = CreateFile2(filename.ToWString().c_str(), access, share, mode, nullptr);
+	handle_ = CreateFile2FromAppW(filename.ToWString().c_str(), access, share, mode, nullptr);
 #else
 	handle_ = CreateFile(filename.ToWString().c_str(), access, share, nullptr, mode, flags, nullptr);
 #endif

Core/FileSystems/DirectoryFileSystem.cpp

@@ -50,6 +50,9 @@
 #ifdef _WIN32
 #include "Common/CommonWindows.h"
 #include <sys/stat.h>
+#if PPSSPP_PLATFORM(UWP)
+#include <fileapifromapp.h>
+#endif
 #undef FILE_OPEN
 #else
 #include <dirent.h>
@@ -158,7 +161,7 @@ bool DirectoryFileHandle::Open(const Path &basePath, std::string &fileName, File
 
 	// Let's do it!
 #if PPSSPP_PLATFORM(UWP)
-	hFile = CreateFile2(fullName.ToWString().c_str(), desired, sharemode, openmode, nullptr);
+	hFile = CreateFile2FromAppW(fullName.ToWString().c_str(), desired, sharemode, openmode, nullptr);
 #else
 	hFile = CreateFile(fullName.ToWString().c_str(), desired, sharemode, 0, openmode, 0, 0);
 #endif
@@ -170,7 +173,7 @@ bool DirectoryFileHandle::Open(const Path &basePath, std::string &fileName, File
 			// Sometimes, the file is locked for write, let's try again.
 			sharemode |= FILE_SHARE_WRITE;
 #if PPSSPP_PLATFORM(UWP)
-			hFile = CreateFile2(fullName.ToWString().c_str(), desired, sharemode, openmode, nullptr);
+			hFile = CreateFile2FromAppW(fullName.ToWString().c_str(), desired, sharemode, openmode, nullptr);
 #else
 			hFile = CreateFile(fullName.ToWString().c_str(), desired, sharemode, 0, openmode, 0, 0);
 #endif

Core/FileSystems/VirtualDiscFileSystem.cpp

@@ -38,6 +38,9 @@
 #ifdef _WIN32
 #include "Common/CommonWindows.h"
 #include <sys/stat.h>
+#if PPSSPP_PLATFORM(UWP)
+#include <fileapifromapp.h>
+#endif
 #else
 #include <dirent.h>
 #include <unistd.h>
@@ -673,8 +676,11 @@ std::vector<PSPFileInfo> VirtualDiscFileSystem::GetDirListing(std::string path)
 
 	std::wstring w32path = GetLocalPath(path).ToWString() + L"\\*.*";
 
+#if PPSSPP_PLATFORM(UWP)
+	hFind = FindFirstFileExFromAppW(w32path.c_str(), FindExInfoStandard, &findData, FindExSearchNameMatch, NULL, 0);
+#else
 	hFind = FindFirstFileEx(w32path.c_str(), FindExInfoStandard, &findData, FindExSearchNameMatch, NULL, 0);
-
+#endif
 	if (hFind == INVALID_HANDLE_VALUE) {
 		return myVector; //the empty list
 	}

ext/libzip/zip_source_file_win32_utf16.c

@@ -30,6 +30,9 @@
   OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
   IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
+#ifdef MS_UWP
+#include <fileapifromapp.h>
+#endif
 
 #include "zip_source_file_win32.h"
 
@@ -92,7 +95,7 @@ utf16_create_file(const char *name, DWORD access, DWORD share_mode, PSECURITY_AT
 
     return CreateFile2((const wchar_t *)name, access, share_mode, creation_disposition, &extParams);
 #else
-    return CreateFile2((const wchar_t *)name, access, share_mode, creation_disposition, NULL);
+    return CreateFile2FromAppW((const wchar_t *)name, access, share_mode, creation_disposition, NULL);
 #endif
 #else
     return CreateFileW((const wchar_t *)name, access, share_mode, security_attributes, creation_disposition, file_attributes, template_file);