Fix mouse support in X11 output mode. This has been broken for quite a while.

Reported by Aapo Rantalainen (Thanks!)

src/conio/x_cio.c

@@ -49,6 +49,7 @@
 #endif
 
 #include "ciolib.h"
+#include "keys.h"
 #include "x_cio.h"
 #include "x_events.h"
 
@@ -152,6 +153,18 @@ int x_get_window_info(int *width, int *height, int *xpos, int *ypos)
 	return(0);
 }
 
+/* Mouse event/keyboard thread */
+void x11_mouse_thread(void *data)
+{
+	//uint16_t	key=((CIO_KEY_MOUSE&0xFF)<<8)|((CIO_KEY_MOUSE>>8)&0xFF);
+	uint16_t	key=CIO_KEY_MOUSE;
+
+	while(1) {
+		if(mouse_wait())
+			write(key_pipe[1], &key, 2);
+	}
+}
+
 int x_init(void)
 {
 	dll_handle	dl;
@@ -360,6 +373,7 @@ int x_init(void)
 	}
 
 	_beginthread(x11_event_thread,1<<16,NULL);
+	_beginthread(x11_mouse_thread,1<<16,NULL);
 	sem_wait(&init_complete);
 	if(!x11_initialized) {
 		sem_destroy(&pastebuf_set);

src/conio/x_events.c

@@ -754,13 +754,8 @@ static int x11_event(XEvent *ev)
 						break;
 				}
 				if (scan != 0xffff) {
-					unsigned char ch;
-					ch=scan & 0xff;
-					write(key_pipe[1], &ch, 1);
-					if(!ch) {
-						ch=scan >> 8;
-						write(key_pipe[1], &ch, 1);
-					}
+					uint16_t key=scan;
+					write(key_pipe[1], &key, (scan&0xff)?1:2);
 				}
 				return(1);
 			}