Merge branch 'master' into mpx

hw/kdrive/src/kinput.c

@@ -631,6 +631,18 @@ KdComputePointerMatrix (KdPointerMatrix *m, Rotation randr, int width,
     }
 }
 
+void
+KdScreenToPointerCoords (int *x, int *y)
+{
+    int	(*m)[3] = kdPointerMatrix.matrix;
+    int div = m[0][1] * m[1][0] - m[1][1] * m[0][0];
+    int sx = *x;
+    int sy = *y;
+
+    *x = (m[0][1] * sy - m[0][1] * m[1][2] + m[1][1] * m[0][2] - m[1][1] * sx) / div;
+    *y = (m[1][0] * sx + m[0][0] * m[1][2] - m[1][0] * m[0][2] - m[0][0] * sy) / div;
+}
+
 static void
 KdKbdCtrl (DeviceIntPtr pDevice, KeybdCtrl *ctrl)
 {