Add return value checking for in_grab. Also some dead code removal, dangling comment and white space cleanup.

libs/video/targets/context_sdl.c

@@ -17,6 +17,7 @@ static __attribute__ ((unused)) const char rcsid[] =
 
 #include "QF/console.h"
 #include "QF/cvar.h"
+#include "QF/input.h"
 #include "QF/va.h"
 #include "QF/vid.h"
 
@@ -72,6 +73,8 @@ VID_UpdateFullscreen (cvar_t *vid_fullscreen)
 		|| (!vid_fullscreen->int_val && screen->flags & SDL_FULLSCREEN))
 		if (!SDL_WM_ToggleFullScreen (screen))
 			Con_Printf ("VID_UpdateFullscreen: error setting fullscreen\n");
+	if (in_grab)
+		IN_UpdateGrab (in_grab);
 }
 
 void

libs/video/targets/context_x11.c

@@ -415,11 +415,10 @@ X11_UpdateFullscreen (cvar_t *fullscreen)
 		}
 
 		X11_ForceMove (0, 0);
-		XWarpPointer (x_disp, None, x_win,
-					  0, 0, 0, 0,
-					  vid.width / 2, vid.height / 2);
-		X11_ForceViewPort (); 
+		XWarpPointer (x_disp, None, x_win, 0, 0, 0, 0, vid.width / 2,
+					  vid.height / 2);
 		// Done in X11_SetVidMode but moved the window since then
+		X11_ForceViewPort (); 
 	}
 }
 
@@ -515,7 +514,7 @@ X11_RestoreVidMode (void)
 }
 
 static void
-X11_GrabKeyboardBool(qboolean yes)
+X11_GrabKeyboard (qboolean yes)
 {
 	static qboolean is_grabbed = false;
 
@@ -534,16 +533,8 @@ X11_GrabKeyboardBool(qboolean yes)
 	}
 }
 
-#if 0
 static void
-X11_UngrabKeyboard (void)
-{
-	XUngrabKeyboard (x_disp, CurrentTime);
-}
-#endif
-
-static void
-X11_GrabMouseBool (qboolean yes)
+X11_GrabMouse (qboolean yes)
 {
 	static qboolean is_grabbed = false;
 
@@ -564,16 +555,6 @@ X11_GrabMouseBool (qboolean yes)
 				  vid.height / 2);
 }
 
-#if 0
-static void
-X11_UngrabMouse(void)
-{
-	XUngrabPointer (x_disp, CurrentTime);
-	XWarpPointer (x_disp, x_win, x_win, 0, 0, 0, 0, vid.width / 2,
-				  vid.height / 2);
-}
-#endif
-
 void
 X11_Grabber (qboolean grab)
 {
@@ -581,8 +562,8 @@ X11_Grabber (qboolean grab)
 		Con_Printf ("No video context to grab to!\n");
 		return;
 	}
-	X11_GrabMouseBool (grab);
-	X11_GrabKeyboardBool (grab);
+	X11_GrabMouse (grab);
+	X11_GrabKeyboard (grab);
 
 	XSync (x_disp, false);
 }

libs/video/targets/in_common.c

@@ -78,20 +78,18 @@ qboolean    in_mouse_avail;
 float       in_mouse_x, in_mouse_y;
 static float in_old_mouse_x, in_old_mouse_y;
 
-static int  input_grabbed;
+static int  input_grabbed = 0;
 
-void // called from context_x11.c
-IN_UpdateGrab (cvar_t *var)
+void
+IN_UpdateGrab (cvar_t *var)		// called from context_*.c
 {
-	if (var->int_val || (vid_fullscreen && vid_fullscreen->int_val)) {
+	if (var->int_val) {
 		if (!input_grabbed) {
-			IN_LL_Grab_Input ();
-			input_grabbed = 1;
+			input_grabbed = IN_LL_Grab_Input ();
 		}
 	} else {
 		if (input_grabbed) {
-			IN_LL_Ungrab_Input ();
-			input_grabbed = 0;
+			input_grabbed = IN_LL_Ungrab_Input ();
 		}
 	}
 }

libs/video/targets/in_fbdev.c

@@ -133,14 +133,16 @@ IN_LL_SendKeyEvents (void)
 	}
 }
 
-void
+int
 IN_LL_Grab_Input (void)
 {
+	return 0;
 }
 
-void
+int
 IN_LL_Ungrab_Input (void)
 {
+	return 0;
 }
 
 void

libs/video/targets/in_sdl.c

@@ -851,16 +851,16 @@ IN_LL_SendKeyEvents (void)
 	}
 }
 
-void
+int
 IN_LL_Grab_Input (void)
 {
-	SDL_WM_GrabInput (SDL_GRAB_ON);
+	return (SDL_GRAB_ON == SDL_WM_GrabInput (SDL_GRAB_ON));
 }
 
-void
+int
 IN_LL_Ungrab_Input (void)
 {
-	SDL_WM_GrabInput (SDL_GRAB_OFF);
+	return (SDL_GRAB_ON == SDL_WM_GrabInput (SDL_GRAB_OFF));
 }
 
 void

libs/video/targets/in_svgalib.c

@@ -457,14 +457,16 @@ IN_LL_SendKeyEvents (void)
 	}
 }
 
-void
+int
 IN_LL_Grab_Input (void)
 {
+	return 0;
 }
 
-void
+int
 IN_LL_Ungrab_Input (void)
 {
+	return 0;
 }
 
 void

libs/video/targets/in_win.c

@@ -407,14 +407,16 @@ IN_MouseEvent (int mstate)
 	}
 }
 
-void
+int
 IN_LL_Grab_Input (void)
 {
+	return 0;
 }
 
-void
+int
 IN_LL_Ungrab_Input (void)
 {
+	return 0;
 }
 
 void

libs/video/targets/in_x11.c

@@ -544,24 +544,26 @@ event_motion (XEvent *event)
 	}
 }
 
-void
+int
 IN_LL_Grab_Input (void)
 {
 	if (!x_disp || !x_win)
-		return;
+		return 0;
 	X11_Grabber (true);
 	if (in_dga->int_val)
 		dga_on ();
+	return 1;
 }
 
-void
+int
 IN_LL_Ungrab_Input (void)
 {
 	if (!x_disp || !x_win)
-		return;
+		return 0;
 	if (in_dga->int_val)
 		dga_off ();
 	X11_Grabber (false);
+	return 0;
 }
 
 void
@@ -635,7 +637,6 @@ IN_LL_Init_Cvars (void)
 					   "DGA Input support");
 }
 
-
 void
 IN_LL_ClearStates (void)
 {