[quake3] Weird mouse problem on Edgy

[Ben Noordhuis]

On 11/18/06, Thilo Schulz <arny at ats.s.bawue.de> wrote:
> Yes I have had this problem too, though it seemed to appear after an update of
> my x libraries.

Probably not xlib but SDL since this bug only manifests itself when
compiling with sdl_glimp.c. Attached is a patch for ioquake3 that
works around it.
-------------- next part --------------
--- code/unix/sdl_glimp.c	2006-12-02 00:07:07.000000000 +0100
+++ code/unix/sdl_glimp.c.new	2006-12-02 00:06:48.000000000 +0100
@@ -1371,6 +1371,8 @@
 }
 
 void IN_Frame (void) {
+  // 061201 mis -- workaround for SDL mouse locking bug.
+  static qboolean consoleDown = qfalse;
 
   // bk001130 - from cvs 1.17 (mkv)
   IN_JoyMove(); // FIXME: disable if on desktop?
@@ -1384,10 +1386,19 @@
         && strcmp( Cvar_VariableString("r_glDriver"), _3DFX_DRIVER_NAME ) )
     {
       IN_DeactivateMouse ();
+      consoleDown = qtrue;
       return;
     }
   }
 
+  if (consoleDown) {
+    // warp mouse, don't grab it until the next frame
+    SDL_WarpMouse(screen->w / 2, screen->h / 2);
+    IN_DeactivateMouse();
+    consoleDown = qfalse;
+    return;
+  }
+
   IN_ActivateMouse();
 }