From 15cee173fc232e7eba1bda99bc01d5d4aacce600 Mon Sep 17 00:00:00 2001
From: FunkyFr3sh <cc.red.alert.1@googlemail.com>
Date: Sat, 5 Aug 2023 04:50:02 +0200
Subject: [PATCH] Let cnc-ddraw create a new ddraw.ini if it doesn't exist

---
 config/ConfigFormUnit.cpp | 26 ++++++++++++++++++++++++++
 inc/config.h              |  1 +
 src/config.c              |  6 +-----
 src/dllmain.c             |  3 +++
 4 files changed, 31 insertions(+), 5 deletions(-)

diff --git a/config/ConfigFormUnit.cpp b/config/ConfigFormUnit.cpp
index 40cabe4..012499f 100644
--- a/config/ConfigFormUnit.cpp
+++ b/config/ConfigFormUnit.cpp
@@ -541,6 +541,31 @@ void __fastcall TConfigForm::CompatibilityBtnClick(TObject *Sender)
 
 void __fastcall TConfigForm::FormCreate(TObject *Sender)
 {
+	/* Let cnc-ddraw create a new ddraw.ini if it doesn't exist */
+	if (!FileExists(".\\ddraw.ini")) {
+
+		SetEnvironmentVariableW(L"cnc_ddraw_config_init", L"1");
+
+		HMODULE ddraw = LoadLibraryW(L".\\ddraw.dll");
+
+		if (ddraw) {
+
+			void (WINAPI* dd_create)(void*, void**, void*);
+
+			dd_create =
+				(void (WINAPI*)(void*, void**, void*))
+					GetProcAddress(ddraw, "DirectDrawCreate");
+
+			if (dd_create) {
+
+				void *buf;
+				dd_create(NULL, &buf, NULL);
+			}
+
+			FreeLibrary(ddraw);
+		}
+	}
+
 	auto *ini = new TIniFile(".\\ddraw.ini");
 
 	ApplyTranslation(ini);
@@ -860,6 +885,7 @@ void TConfigForm::SaveSettings()
 
 void __fastcall TConfigForm::FormActivate(TObject *Sender)
 {
+	/* Detect wine (Linux/macOS) and create the needed dll override */
    if (!GetProcAddress(GetModuleHandleW(L"ntdll.dll"), "wine_get_version"))
 		return;
 
diff --git a/inc/config.h b/inc/config.h
index 1b40a22..44b6939 100644
--- a/inc/config.h
+++ b/inc/config.h
@@ -20,6 +20,7 @@ typedef struct CNCDDRAWCONFIG
 
 extern CNCDDRAWCONFIG g_config;
 
+void cfg_init();
 void cfg_load();
 void cfg_save();
 
diff --git a/src/config.c b/src/config.c
index 8972a48..5d5bcf4 100644
--- a/src/config.c
+++ b/src/config.c
@@ -901,10 +901,6 @@ static void cfg_create_ini()
             "adjmouse=true\n"
             "fixchilds=1\n"
             "\n"
-            "; Septerra Core\n"
-            "[septerra]\n"
-            "hook=2\n"
-            "\n"
             "; Sim Copter\n"
             "[SimCopter]\n"
             "renderer=opengl\n"
@@ -1058,7 +1054,7 @@ static void cfg_create_ini()
     }
 }
 
-static void cfg_init()
+void cfg_init()
 {
     /* get process filename and directory */
     if (GetModuleFileNameA(NULL, g_config.game_path, sizeof(g_config.game_path) - 1) > 0)
diff --git a/src/dllmain.c b/src/dllmain.c
index 13832a1..ef60f1d 100644
--- a/src/dllmain.c
+++ b/src/dllmain.c
@@ -22,6 +22,9 @@ HMODULE g_ddraw_module;
 
 BOOL WINAPI DllMain(HANDLE hDll, DWORD dwReason, LPVOID lpReserved)
 {
+    if (GetEnvironmentVariableW(L"cnc_ddraw_config_init", NULL, 0))
+        return TRUE;
+
     switch (dwReason)
     {
     case DLL_PROCESS_ATTACH: