--- /dev/null
+! Copyright (C) 2010 Erik Charlebois, William Schlieper.
+! See http://factorcode.org/license.txt for BSD license.
+USING: accessors alien.c-types alien.data alien.syntax assocs
+bit-arrays game.input gdk.ffi generalizations kernel math
+namespaces sequences system x11.xlib ;
+IN: game.input.gtk
+
+SINGLETON: gtk-game-input-backend
+
+gtk-game-input-backend game-input-backend set-global
+
+LIBRARY: gdk
+FUNCTION: Display* gdk_x11_display_get_xdisplay ( GdkDisplay* display ) ;
+
+: get-dpy ( -- dpy )
+ gdk_display_get_default gdk_x11_display_get_xdisplay ;
+
+M: gtk-game-input-backend (open-game-input)
+ ;
+
+M: gtk-game-input-backend (close-game-input)
+ ;
+
+M: gtk-game-input-backend (reset-game-input)
+ ;
+
+M: gtk-game-input-backend get-controllers
+ { } ;
+
+M: gtk-game-input-backend product-string
+ drop "" ;
+
+M: gtk-game-input-backend product-id
+ drop f ;
+
+M: gtk-game-input-backend instance-id
+ drop f ;
+
+M: gtk-game-input-backend read-controller
+ drop controller-state new ;
+
+M: gtk-game-input-backend calibrate-controller
+ drop ;
+
+M: gtk-game-input-backend vibrate-controller
+ 3drop ;
+
+HOOK: x>hid-bit-order os ( -- x )
+
+M: linux x>hid-bit-order
+ {
+ 0 0 0 0 0 0 0 0
+ 0 41 30 31 32 33 34 35
+ 36 37 38 39 45 46 42 43
+ 20 26 8 21 23 28 24 12
+ 18 19 47 48 40 224 4 22
+ 7 9 10 11 13 14 15 51
+ 52 53 225 49 29 27 6 25
+ 5 17 16 54 55 56 229 85
+ 226 44 57 58 59 60 61 62
+ 63 64 65 66 67 83 71 95
+ 96 97 86 92 93 94 87 91
+ 90 89 98 99 0 0 0 68
+ 69 0 0 0 0 0 0 0
+ 88 228 84 70 0 0 74 82
+ 75 80 79 77 81 78 73 76
+ 127 129 128 102 103 0 72 0
+ 0 0 0 227 231 0 0 0
+ 0 0 0 0 0 0 0 0
+ 0 0 0 0 0 0 0 0
+ 0 0 0 0 0 0 0 0
+ 0 0 0 0 0 0 0 0
+ 0 0 0 0 0 0 0 0
+ 0 0 0 0 0 0 0 0
+ 0 0 0 0 0 0 0 0
+ 0 0 0 0 0 0 0 0
+ 0 0 0 0 0 0 0 0
+ 0 0 0 0 0 0 0 0
+ 0 0 0 0 0 0 0 0
+ 0 0 0 0 0 0 0 0
+ 0 0 0 0 0 0 0 0
+ 0 0 0 0 0 0 0 0
+ 0 0 0 0 0 0 0 0
+ } ; inline
+
+: x-bits>hid-bits ( bit-array -- bit-array )
+ 256 iota zip [ first ] filter values
+ x>hid-bit-order [ nth ] curry map
+ 256 <bit-array> swap [ t swap pick set-nth ] each ;
+
+M: gtk-game-input-backend read-keyboard
+ get-dpy 256 <bit-array> [ XQueryKeymap drop ] keep
+ x-bits>hid-bits keyboard-state boa ;
+
+: query-pointer ( -- x y buttons )
+ get-dpy dup XDefaultRootWindow
+ { int int int int int int int }
+ [ XQueryPointer drop ] with-out-parameters
+ [ 4 ndrop ] 3dip ;
+
+SYMBOL: mouse-reset?
+
+M: gtk-game-input-backend read-mouse
+ mouse-reset? get [ reset-mouse ] unless
+ query-pointer
+ mouse-state new
+ swap 256 /i >>buttons
+ swap 400 - >>dy
+ swap 400 - >>dx
+ 0 >>scroll-dy 0 >>scroll-dx ;
+
+M: gtk-game-input-backend reset-mouse
+ get-dpy dup XDefaultRootWindow dup
+ 0 0 0 0 400 400 XWarpPointer drop t mouse-reset? set-global ;