automatically add needed dll override for Linux/macOS/Android (WINE)

Utils/CMakeLists.txt

@@ -29,6 +29,7 @@ set(UtilsSrc
 "${CMAKE_CURRENT_SOURCE_DIR}/Text Utils.cpp"
 "${CMAKE_CURRENT_SOURCE_DIR}/Timer Control.cpp"
 "${CMAKE_CURRENT_SOURCE_DIR}/Utilities.cpp"
+"${CMAKE_CURRENT_SOURCE_DIR}/wine.cpp"
 "${CMAKE_CURRENT_SOURCE_DIR}/WordWrap.cpp"
 "${CMAKE_CURRENT_SOURCE_DIR}/XMLProperties.cpp"
 "${CMAKE_CURRENT_SOURCE_DIR}/XMLWriter.cpp"

Utils/wine.cpp

@@ -0,0 +1,65 @@
+#include <windows.h>
+#include <stdio.h>
+#include "wine.h"
+
+
+BOOL wine_add_dll_overrides()
+{
+    BOOL dd = wine_add_dll_override(L"ddraw");
+    //BOOL ws = wine_add_dll_override(L"wsock32");
+    
+    return dd; // || ws;
+}
+
+BOOL wine_add_dll_override(const WCHAR* dll_name)
+{
+    if (!IS_WINE)
+        return FALSE;
+
+    WCHAR exe_path[MAX_PATH] = { 0 };
+    if (!GetModuleFileNameW(NULL, exe_path, _countof(exe_path) - 1))
+        return FALSE;
+
+    WCHAR exe_file_name[MAX_PATH] = { 0 };
+    WCHAR exe_file_ext[MAX_PATH] = { 0 };
+    _wsplitpath(exe_path, NULL, NULL, exe_file_name, exe_file_ext);
+
+    WCHAR reg_path[512] = { 0 };
+    _snwprintf(
+        reg_path, 
+        _countof(reg_path) - 1,
+        L"SOFTWARE\\Wine\\AppDefaults\\%s%s\\DllOverrides", 
+        exe_file_name, 
+        exe_file_ext);
+
+    BOOL result = FALSE;
+    HKEY hkey;
+    LONG status =
+        RegCreateKeyExW(
+            HKEY_CURRENT_USER,
+            reg_path,
+            0,
+            NULL,
+            REG_OPTION_NON_VOLATILE,
+            KEY_WRITE | KEY_READ,
+            NULL,
+            &hkey,
+            NULL);
+
+    if (status == ERROR_SUCCESS)
+    {
+        if (RegQueryValueExW(hkey, dll_name, NULL, NULL, NULL, NULL) != ERROR_SUCCESS)
+        {
+            WCHAR v[] = L"native, builtin";
+            if (RegSetValueExW(hkey, dll_name, 0, REG_SZ, (LPCBYTE)v, sizeof(v)) == ERROR_SUCCESS && 
+                RegQueryValueExW(hkey, dll_name, NULL, NULL, NULL, NULL) == ERROR_SUCCESS)
+            {
+                result = TRUE;
+            }
+        }
+
+        RegCloseKey(hkey);
+    }
+
+    return result;
+}

Utils/wine.h

@@ -0,0 +1,15 @@
+#ifndef WINE_H 
+#define WINE_H 
+
+#define IS_WINE (GetProcAddress(GetModuleHandleA("ntdll.dll"), "wine_get_version") != 0)
+
+// ### types ###
+
+// ### Variables ###
+
+// ### Functions ###
+
+BOOL wine_add_dll_overrides();
+BOOL wine_add_dll_override(const WCHAR* dll_name);
+
+#endif

sgp/sgp.cpp

@@ -49,6 +49,7 @@
 #include "Lua Interpreter.h"
 #include "connect.h"
 #include "english.h"
+#include "wine.h"
 
 	#include "BuildDefines.h"
 	#include "Intro.h"
@@ -766,7 +767,16 @@ int PASCAL HandledWinMain(HINSTANCE hInstance,	HINSTANCE hPrevInstance, LPSTR pC
 	HWND			hPrevInstanceWindow;
 	UINT32			uiTimer = 0;
 
+	// Make sure the game works out of the box on Linux/macOS/Android (WINE)
+	if (wine_add_dll_overrides())
+	{
+		/* newly added dll overrides only work after a restart */
+		char exe_path[MAX_PATH] = { 0 };
+		GetModuleFileNameA(NULL, exe_path, _countof(exe_path));
 
+		ShellExecuteA(NULL, "open", exe_path, pCommandLine, NULL, sCommandShow);
+		return 0;
+	}
 
 	vfs::Log::setSharedString( getGameID() );
 	//if(!vfs::Aspects::getMutexFactory())