Mercurial > sdl-ios-xcode

diff src/video/x11/SDL_x11mouse.c @ 2992:dbff5769d742

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The core pointer is comprised of merging the inputs of all mice. If there are other mice, they should show up in the device list, and we want to report events from those devices instead of the core events. However, if XInput isn't supported or we can't find other mice in the device list, we'll add the core pointer and interpret normal mouse events.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 04 Jan 2009 18:29:20 +0000
parents 1e242954330b
children 0deb3e94c251
line wrap: on
line diff
--- a/src/video/x11/SDL_x11mouse.c	Sun Jan 04 17:30:00 2009 +0000
+++ b/src/video/x11/SDL_x11mouse.c	Sun Jan 04 18:29:20 2009 +0000
@@ -50,19 +50,14 @@
     int event_code;
     XEventClass xEvent;
 #endif
-
-    SDL_zero(mouse);
-    SDL_AddMouse(&mouse, "CorePointer", 0, 0, 1);
+    int num_mice = 0;
 
 #if SDL_VIDEO_DRIVER_X11_XINPUT
-    if (!SDL_X11_HAVE_XINPUT) {
-        /* should have dynamically loaded, but wasn't available. */
-        return;
-    }
-
     /* we're getting the list of input devices */
     n = 0;
-    DevList = XListInputDevices(display, &n);
+    if (SDL_X11_HAVE_XINPUT) {
+        DevList = XListInputDevices(display, &n);
+    }
 
     /* we're aquiring valuators: mice, tablets, etc. */
     for (i = 0; i < n; ++i) {
@@ -127,6 +122,9 @@
                     } else {
                         SDL_AddMouse(&mouse, DevList[i].name, 0, 0, 1);
                     }
+                    if (DevList[i].use == IsXExtensionPointer) {
+                        ++num_mice;
+                    }
                     break;
                 }
                 /* if it's not class we're interested in, lets go further */
@@ -138,6 +136,11 @@
     }
     XFreeDeviceList(DevList);
 #endif
+
+    if (num_mice == 0) {
+        SDL_zero(mouse);
+        SDL_AddMouse(&mouse, "CorePointer", 0, 0, 1);
+    }
 }
 
 void