Windows: Fix passing Unicode filenames (fixes #1359)

CMakeLists.txt

@@ -226,6 +226,8 @@ endif()
 if(WIN32)
 	set(WIN32_VERSION "${LIB_VERSION_MAJOR},${LIB_VERSION_MINOR},${LIB_VERSION_PATCH}")
 	add_definitions(-D_WIN32_WINNT=0x0600)
+	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -municode")
+	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -municode")
 	list(APPEND OS_LIB ws2_32 shlwapi)
 	list(APPEND CORE_VFS_SRC ${CMAKE_CURRENT_SOURCE_DIR}/src/util/vfs/vfs-fd.c ${CMAKE_CURRENT_SOURCE_DIR}/src/platform/windows/vfs-w32.c)
 	file(GLOB OS_SRC ${CMAKE_CURRENT_SOURCE_DIR}/src/platform/windows/*.c)

include/mgba-util/common.h

@@ -34,12 +34,16 @@ CXX_GUARD_START
 // WinSock2 gets very angry if it's included too late
 #include <winsock2.h>
 #endif
+
+#if defined(_MSC_VER) || defined(__cplusplus)
+#define restrict __restrict
+#endif
+
 #ifdef _MSC_VER
 #include <Windows.h>
 #include <sys/types.h>
 typedef intptr_t ssize_t;
 #define PATH_MAX MAX_PATH
-#define restrict __restrict
 #define strcasecmp _stricmp
 #define strncasecmp _strnicmp
 #define ftruncate _chsize

src/platform/qt/main.cpp

@@ -104,3 +104,21 @@ int main(int argc, char* argv[]) {
 
 	return application.exec();
 }
+
+#ifdef _WIN32
+#include <mgba-util/string.h>
+#include <vector>
+
+extern "C"
+int wmain(int argc, wchar_t* argv[]) {
+	std::vector<char*> argv8;
+	for (int i = 0; i < argc; ++i) {
+		argv8.push_back(utf16to8(reinterpret_cast<uint16_t*>(argv[i]), wcslen(argv[i]) * 2));
+	}
+	int ret = main(argc, argv8.data());
+	for (char* ptr : argv8) {
+		free(ptr);
+	}
+	return ret;
+}
+#endif

src/platform/sdl/main.c

@@ -179,6 +179,24 @@ int main(int argc, char** argv) {
 	return ret;
 }
 
+#ifdef _WIN32
+#include <mgba-util/string.h>
+
+int wmain(int argc, wchar_t** argv) {
+	char** argv8 = malloc(sizeof(char*) * argc);
+	int i;
+	for (i = 0; i < argc; ++i) {
+		argv8[i] = utf16to8((uint16_t*) argv[i], wcslen(argv[i]) * 2);
+	}
+	int ret = main(argc, argv8);
+	for (i = 0; i < argc; ++i) {
+		free(argv8[i]);
+	}
+	free(argv8);
+	return ret;
+}
+#endif
+
 int mSDLRun(struct mSDLRenderer* renderer, struct mArguments* args) {
 	struct mCoreThread thread = {
 		.core = renderer->core