[2/3] dinput: Disable linuxinput or linux joysticks based on registry key (try 3)

[Lucas Zawacki]

From: Lucas Zawacki <lfzawacki at gmail.com>

In the form of "controllername"="disabled" key under the 'Joysticks' subkey

This can help the users with bugs #26810 and #30690
---
 dlls/dinput/joystick.c            |   36 ++++++++++++++++++++++++++++++++++++
 dlls/dinput/joystick_linux.c      |    2 ++
 dlls/dinput/joystick_linuxinput.c |    2 ++
 dlls/dinput/joystick_private.h    |    2 ++
 4 files changed, 42 insertions(+)

diff --git a/dlls/dinput/joystick.c b/dlls/dinput/joystick.c
index dfcaeb7..081b0d6 100644
--- a/dlls/dinput/joystick.c
+++ b/dlls/dinput/joystick.c
@@ -49,6 +49,42 @@ static inline IDirectInputDevice8W *IDirectInputDevice8W_from_impl(JoystickGener
     return &This->base.IDirectInputDevice8W_iface;
 }
 
+BOOL device_disabled_registry(const char* name)
+{
+    static const char *disabled_str = "disabled";
+    static const char *joystick_key = "Joysticks";
+    char buffer[MAX_PATH];
+    HKEY hkey, appkey, temp;
+    BOOL do_disable = FALSE;
+
+    get_app_key(&hkey, &appkey);
+
+    /* Joystick settings are in the 'joysticks' subkey */
+    if (RegOpenKeyA(appkey, joystick_key, &temp) == ERROR_SUCCESS)
+    {
+        RegCloseKey(appkey);
+        appkey = temp;
+    }
+    else if (RegOpenKeyA(hkey, joystick_key, &temp) == ERROR_SUCCESS)
+    {
+        RegCloseKey(hkey);
+        hkey = temp;
+    }
+
+    /* Look for the "controllername"="disabled" key */
+    if (!get_config_key(hkey, appkey, name, buffer, sizeof(buffer)))
+        if (!strncmp(disabled_str, buffer, sizeof(disabled_str)))
+        {
+            TRACE("Disabling joystick '%s' based on registry key.\n", name);
+            do_disable = TRUE;
+        }
+
+    if (appkey) RegCloseKey(appkey);
+    if (hkey)   RegCloseKey(hkey);
+
+    return do_disable;
+}
+
 /******************************************************************************
   *     SetProperty : change input device properties
   */
diff --git a/dlls/dinput/joystick_linux.c b/dlls/dinput/joystick_linux.c
index 9a24157..ed2498b 100644
--- a/dlls/dinput/joystick_linux.c
+++ b/dlls/dinput/joystick_linux.c
@@ -158,6 +158,8 @@ static INT find_joystick_devices(void)
         /* Append driver name */
         strcat(joydev.name, JOYDEVDRIVER);
 
+        if (device_disabled_registry(joydev.name)) continue;
+
 #ifdef JSIOCGAXES
         if (ioctl(fd, JSIOCGAXES, &joydev.axis_count) < 0)
         {
diff --git a/dlls/dinput/joystick_linuxinput.c b/dlls/dinput/joystick_linuxinput.c
index 808ebf4..341e169 100644
--- a/dlls/dinput/joystick_linuxinput.c
+++ b/dlls/dinput/joystick_linuxinput.c
@@ -251,6 +251,8 @@ static void find_joydevs(void)
         else
             joydev.name = joydev.device;
 
+        if (device_disabled_registry(joydev.name)) continue;
+
         joydev.guid = DInput_Wine_Joystick_Base_GUID;
         joydev.guid.Data3 += have_joydevs;
 
diff --git a/dlls/dinput/joystick_private.h b/dlls/dinput/joystick_private.h
index 71d91f1..483db66 100644
--- a/dlls/dinput/joystick_private.h
+++ b/dlls/dinput/joystick_private.h
@@ -57,6 +57,8 @@ HRESULT setup_dinput_options(JoystickGenericImpl *This, const int *default_axis_
 
 DWORD joystick_map_pov(const POINTL *p) DECLSPEC_HIDDEN;
 
+BOOL device_disabled_registry(const char* name) DECLSPEC_HIDDEN;
+
 HRESULT WINAPI JoystickWGenericImpl_GetObjectInfo(LPDIRECTINPUTDEVICE8W iface,
         LPDIDEVICEOBJECTINSTANCEW pdidoi, DWORD dwObj, DWORD dwHow) DECLSPEC_HIDDEN;
 
-- 
1.7.9.5