Bruno Jesus : dinput: Assume a 1-to-1 axes map when no axes match.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: e87ccb8b055dc846211967e46ee2f17fbabef7a1
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=e87ccb8b055dc846211967e46e...

Author: Bruno Jesus <bjesus(a)codeweavers.com>
Date:   Sun Apr  9 22:25:35 2017 -0300

dinput: Assume a 1-to-1 axes map when no axes match.

The wiimote is a well known problematic device, mainly because it is not
a joystick. It is a USB device. But the classic controller is at least
advertised as a joystick with 6 axes and 11 buttons (js driver only, NO
event).

Signed-off-by: Bruno Jesus <bjesus(a)codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard(a)winehq.org>

---

 dlls/dinput/joystick_linux.c | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/dlls/dinput/joystick_linux.c b/dlls/dinput/joystick_linux.c
index 1f8f94d..1032659 100644
--- a/dlls/dinput/joystick_linux.c
+++ b/dlls/dinput/joystick_linux.c
@@ -228,19 +228,36 @@ static INT find_joystick_devices(void)
         else
             if ((joydev.dev_axes_map = HeapAlloc(GetProcessHeap(), 0, joydev.axis_count * sizeof(int))))
             {
-                INT j;
+                INT j, found_axes = 0;
 
                 /* Remap to DI numbers */
                 for (j = 0; j < joydev.axis_count; j++)
+                {
                     if (axes_map[j] < 8)
+                    {
                         /* Axis match 1-to-1 */
                         joydev.dev_axes_map[j] = j;
+                        found_axes++;
+                    }
                     else if (axes_map[j] == 16 ||
                              axes_map[j] == 17)
+                    {
                         /* POV axis */
                         joydev.dev_axes_map[j] = 8;
+                        found_axes++;
+                    }
                     else
                         joydev.dev_axes_map[j] = -1;
+                }
+
+                /* If no axes were configured but there are axes assume a 1-to-1 (wii controller) */
+                if (joydev.axis_count && !found_axes)
+                {
+                    ERR("Incoherent joystick data, advertised %d axes, detected 0. Assuming 1-to-1.\n",
+                         joydev.axis_count);
+                    for (j = 0; j < joydev.axis_count; j++)
+                        joydev.dev_axes_map[j] = j;
+                }
             }
 
         /* Find vendor_id and product_id in sysfs */