Attachment 241342 Details for Bug 270676 – Derive axis from rotational HID parameters

[patch] Derive axis from rotational HID parameters

patch-3rdparty-joystick-jsBSD.cxx (text/plain), 2.89 KB, created by Stephen Hurd on 2023-04-07 21:00:34 UTC

(hide)

Description:

Filename:

MIME Type:

Creator: Stephen Hurd

Created: 2023-04-07 21:00:34 UTC

Size: 2.89 KB

patch

obsolete

>--- 3rdparty/joystick/jsBSD.cxx.orig	2023-04-07 17:57:15 UTC
>+++ 3rdparty/joystick/jsBSD.cxx
>@@ -52,6 +52,7 @@
> #include <sys/param.h>
> #include <fcntl.h>
> 
>+#include <unistd.h>
> #include <string.h>
> #include <errno.h>
> #include <sys/ioctl.h>
>@@ -198,6 +199,8 @@ static int joy_initialize_hid(struct os_specific_s *os
>     interesting_hid = TRUE;
>     if (page == HUP_GENERIC_DESKTOP)
>     {
>+       int range;
>+       int matched;
>        switch(usage) {
>          case HUG_X:
>          case HUG_RX:
>@@ -221,6 +224,65 @@ static int joy_initialize_hid(struct os_specific_s *os
>              (*num_axes)++;
>              os->axes_usage[*num_axes] = usage;
>              (*num_axes)++;
>+           }
>+           range = h.logical_maximum - h.logical_minimum + 1;
>+           matched = 0;
>+           if (((h.logical_minimum == 0) || (h.logical_minimum == 1)) && (h.unit == HUM_DEGREE) && (h.unit_exponent == 0) && ((range == 4) || (range == 8))) {
>+             int resolution = (h.physical_maximum - h.physical_minimum) / (h.logical_maximum - h.logical_minimum);
>+             for (int i = h.logical_minimum; i <= h.logical_maximum; i++) {
>+               const int degrees = (i - h.logical_minimum) * resolution + h.physical_minimum;
>+               switch (degrees) {
>+                 case 0:
>+                   hatmap_x[i] = 0;
>+                   hatmap_y[i] = -1;
>+                   matched++;
>+                   break;
>+                 case 45:
>+                   hatmap_x[i] = 1;
>+                   hatmap_y[i] = -1;
>+                   matched++;
>+                   break;
>+                 case 90:
>+                   hatmap_x[i] = 1;
>+                   hatmap_y[i] = 0;
>+                   matched++;
>+                   break;
>+                 case 135:
>+                   hatmap_x[i] = 1;
>+                   hatmap_y[i] = 1;
>+                   matched++;
>+                   break;
>+                 case 180:
>+                   hatmap_x[i] = 0;
>+                   hatmap_y[i] = 1;
>+                   matched++;
>+                   break;
>+                 case 225:
>+                   hatmap_x[i] = -1;
>+                   hatmap_y[i] = 1;
>+                   matched++;
>+                   break;
>+                 case 270:
>+                   hatmap_x[i] = -1;
>+                   hatmap_y[i] = 0;
>+                   matched++;
>+                   break;
>+                 case 315:
>+                   hatmap_x[i] = -1;
>+                   hatmap_y[i] = -1;
>+                   matched++;
>+                   break;
>+               }
>+             }
>+             if (matched == range) {
>+               if (h.logical_minimum == 0) {
>+                 hatmap_x[h.logical_maximum + 1] = 0;
>+                 hatmap_y[h.logical_maximum + 1] = 0;
>+               } else {
>+                 hatmap_x[0] = 0;
>+                 hatmap_y[0] = 0;
>+               }
>+             }
>            }
>            break;
>          default:

Actions: View | Diff

Attachments on bug 270676: 241330 | 241342