From f23a3e49ba402ae0f720dadad3db4ff4d3f4970d Mon Sep 17 00:00:00 2001
From: FunkyFr3sh <cc.red.alert.1@googlemail.com>
Date: Sun, 19 Sep 2021 04:24:22 +0200
Subject: [PATCH] #121 fix cursor lock for space rangers

---
 inc/dd.h     |  1 +
 src/config.c |  8 ++++++++
 src/dd.c     | 19 +++++++++++--------
 3 files changed, 20 insertions(+), 8 deletions(-)

diff --git a/inc/dd.h b/inc/dd.h
index dbabebe..28a7f1b 100644
--- a/inc/dd.h
+++ b/inc/dd.h
@@ -133,6 +133,7 @@ typedef struct CNCDDRAW
     int fixchilds;
     BOOL fixwndprochook;
     BOOL fixnotresponding;
+    BOOL locktopleft;
     BOOL d3d9linear;
     BOOL gdilinear;
     int resolutions;
diff --git a/src/config.c b/src/config.c
index a16d617..f3bffee 100644
--- a/src/config.c
+++ b/src/config.c
@@ -39,11 +39,15 @@ void cfg_load()
     g_ddraw->fixchilds = cfg_get_int("fixchilds", FIX_CHILDS_DETECT_PAINT);
     g_ddraw->fixwndprochook = cfg_get_bool("fixwndprochook", FALSE);
     g_ddraw->fixnotresponding = cfg_get_bool("fixnotresponding", FALSE);
+    g_ddraw->locktopleft = cfg_get_bool("locktopleft", FALSE);
     g_ddraw->releasealt = cfg_get_bool("releasealt", FALSE);
     g_ddraw->d3d9linear = cfg_get_bool("d3d9linear", TRUE);
     g_ddraw->gdilinear = cfg_get_bool("gdilinear", FALSE);
     g_ddraw->resolutions = cfg_get_int("resolutions", RESLIST_NORMAL);
 
+    if (g_ddraw->locktopleft)
+        g_ddraw->adjmouse = FALSE;
+
     g_ddraw->armadahack = cfg_get_bool("armadahack", FALSE);
     g_ddraw->tshack = cfg_get_bool("tshack", FALSE);
 
@@ -819,6 +823,10 @@ static void cfg_create_ini()
             "[Stronghold Crusader]\n"
             "adjmouse=true\n"
             "\n"
+            "; Space Rangers\n"
+            "[Rangers]\n"
+            "locktopleft=true\n"
+            "\n"
             "; Stronghold Crusader Extreme HD\n"
             "[Stronghold_Crusader_Extreme]\n"
             "adjmouse=true\n"
diff --git a/src/dd.c b/src/dd.c
index e4e07f6..e3d777d 100644
--- a/src/dd.c
+++ b/src/dd.c
@@ -641,18 +641,21 @@ HRESULT dd_SetDisplayMode(DWORD dwWidth, DWORD dwHeight, DWORD dwBPP, DWORD dwFl
     g_ddraw->render.unscale_w = ((float)g_ddraw->width / g_ddraw->render.viewport.width);
     g_ddraw->render.unscale_h = ((float)g_ddraw->height / g_ddraw->render.viewport.height);
 
-    g_ddraw->mouse.x_adjust = g_ddraw->render.viewport.x;
-    g_ddraw->mouse.y_adjust = g_ddraw->render.viewport.y;
+    if (!g_ddraw->locktopleft)
+    {
+        g_ddraw->mouse.x_adjust = g_ddraw->render.viewport.x;
+        g_ddraw->mouse.y_adjust = g_ddraw->render.viewport.y;
+    }
 
-    g_ddraw->mouse.rc.left = g_ddraw->render.viewport.x;
-    g_ddraw->mouse.rc.top = g_ddraw->render.viewport.y;
-    g_ddraw->mouse.rc.right = g_ddraw->width + g_ddraw->render.viewport.x;
-    g_ddraw->mouse.rc.bottom = g_ddraw->height + g_ddraw->render.viewport.y;
+    g_ddraw->mouse.rc.left = g_ddraw->mouse.x_adjust;;
+    g_ddraw->mouse.rc.top = g_ddraw->mouse.y_adjust;;
+    g_ddraw->mouse.rc.right = g_ddraw->width + g_ddraw->mouse.x_adjust;
+    g_ddraw->mouse.rc.bottom = g_ddraw->height + g_ddraw->mouse.y_adjust;
 
     if (g_ddraw->adjmouse)
     {
-        g_ddraw->mouse.rc.right = g_ddraw->render.viewport.width + g_ddraw->render.viewport.x;
-        g_ddraw->mouse.rc.bottom = g_ddraw->render.viewport.height + g_ddraw->render.viewport.y;
+        g_ddraw->mouse.rc.right = g_ddraw->render.viewport.width + g_ddraw->mouse.x_adjust;
+        g_ddraw->mouse.rc.bottom = g_ddraw->render.viewport.height + g_ddraw->mouse.y_adjust;
     }
 
     if (nonexclusive || (g_ddraw->nonexclusive && !g_ddraw->windowed && g_ddraw->renderer == ogl_render_main))