onepad: fix keyboard on 2nd pad

There is only a single event queue, so you need to detect the pad based
on the configuration

Mouse/Wiimote is limited to first pad

Related to issue #1441

plugins/onepad/Linux/linux.cpp

@@ -172,13 +172,18 @@ EXPORT_C_(void) PADupdate(int pad)
 
 	// Actually PADupdate is always call with pad == 0. So you need to update both
 	// pads -- Gregory
-	for (int cpad = 0; cpad < GAMEPAD_NUMBER; cpad++) {
-		// Poll keyboard/mouse event
-		key_status->keyboard_state_acces(cpad);
-		PollForX11KeyboardInput(cpad);
 
-		// Get joystick state
+	// Poll keyboard/mouse event. There is currently no way to separate pad0 from pad1 event.
+	// So we will populate both pad in the same time
+	for (int cpad = 0; cpad < GAMEPAD_NUMBER; cpad++) {
+		key_status->keyboard_state_acces(cpad);
+	}
+	PollForX11KeyboardInput();
+
+	// Get joystick state + Commit
+	for (int cpad = 0; cpad < GAMEPAD_NUMBER; cpad++) {
 		key_status->joystick_state_acces(cpad);
+
 		PollForJoystickInput(cpad);
 
 		key_status->commit_status(cpad);

plugins/onepad/keyboard.cpp

@@ -56,10 +56,19 @@ static bool s_grab_input = false;
 static bool s_Shift = false;
 static unsigned int  s_previous_mouse_x = 0;
 static unsigned int  s_previous_mouse_y = 0;
-void AnalyzeKeyEvent(int pad, keyEvent &evt)
+void AnalyzeKeyEvent(keyEvent &evt)
 {
 	KeySym key = (KeySym)evt.key;
-	int index = get_keyboard_key(pad, key);
+	int pad    = 0;
+	int index = -1;
+
+	for (int cpad = 0; cpad < GAMEPAD_NUMBER; cpad++) {
+		int tmp_index = get_keyboard_key(cpad, key);
+		if (tmp_index != -1) {
+			pad   = cpad;
+			index = tmp_index;
+		}
+	}
 
 	switch (evt.evt)
 	{
@@ -194,14 +203,14 @@ void AnalyzeKeyEvent(int pad, keyEvent &evt)
 	}
 }
 
-void PollForX11KeyboardInput(int pad)
+void PollForX11KeyboardInput()
 {
 	keyEvent evt;
 	XEvent E;
 
 	// Keyboard input send by PCSX2
 	while (!ev_fifo.empty()) {
-		AnalyzeKeyEvent(pad, ev_fifo.front());
+		AnalyzeKeyEvent(ev_fifo.front());
 		pthread_spin_lock(&mutex_KeyEvent);
 		ev_fifo.pop();
 		pthread_spin_unlock(&mutex_KeyEvent);
@@ -227,7 +236,7 @@ void PollForX11KeyboardInput(int pad)
 				evt.key = (int)XLookupKeysym(&E.xkey, 0);
 		}
 
-		AnalyzeKeyEvent(pad, evt);
+		AnalyzeKeyEvent(evt);
 	}
 }
 

plugins/onepad/keyboard.h

@@ -29,7 +29,7 @@
 #include "Linux/linux.h"
 
 extern Display *GSdsp;
-extern void PollForX11KeyboardInput(int pad);
+extern void PollForX11KeyboardInput();
 extern bool PollX11KeyboardMouseEvent(u32 &pkey);
 extern Window GSwin;