From a338007be6fd4302af012109d959f43ac7eab2b1 Mon Sep 17 00:00:00 2001
From: Jeremy Huddleston <jeremyhu@freedesktop.org>
Date: Thu, 1 May 2008 18:02:59 -0700
Subject: [PATCH] XQuartz: Adjust the screen origin offset properly for
 multimonitor setups (cherry picked from commit
 f2020b9836bacd0593ac0b4c8541e32714ab02a9)

---
 hw/xquartz/X11Controller.m |  1 +
 hw/xquartz/darwinEvents.c  | 39 +++++++++++++++++++++-----------------
 hw/xquartz/xpr/xprScreen.c |  1 +
 3 files changed, 24 insertions(+), 17 deletions(-)

diff --git a/hw/xquartz/X11Controller.m b/hw/xquartz/X11Controller.m
index df328f38c..107d8ee9b 100644
--- a/hw/xquartz/X11Controller.m
+++ b/hw/xquartz/X11Controller.m
@@ -42,6 +42,7 @@
 
 #include "opaque.h"
 #include "darwin.h"
+#include "darwinEvents.h"
 #include "quartz.h"
 #define _APPLEWM_SERVER_
 #include "X11/extensions/applewm.h"
diff --git a/hw/xquartz/darwinEvents.c b/hw/xquartz/darwinEvents.c
index 7b3091d40..161fd9d52 100644
--- a/hw/xquartz/darwinEvents.c
+++ b/hw/xquartz/darwinEvents.c
@@ -81,22 +81,21 @@ int input_check_zero, input_check_flag;
 static int old_flags = 0;  // last known modifier state
 
 xEvent *darwinEvents = NULL;
+pthread_mutex_t darwinEvents_mutex = PTHREAD_MUTEX_INITIALIZER;
 
-pthread_mutex_t mieqEnqueue_mutex = PTHREAD_MUTEX_INITIALIZER;
-
-static inline void mieqEnqueue_lock(void) {
+static inline void darwinEvents_lock(void) {
     int err;
-    if((err = pthread_mutex_lock(&mieqEnqueue_mutex))) {
-        ErrorF("%s:%s:%d: Failed to lock mieqEnqueue_mutex: %d\n",
+    if((err = pthread_mutex_lock(&darwinEvents_mutex))) {
+        ErrorF("%s:%s:%d: Failed to lock darwinEvents_mutex: %d\n",
                __FILE__, __FUNCTION__, __LINE__, err);
         spewCallStack();
     }
 }
 
-static inline void mieqEnqueue_unlock(void) {
+static inline void darwinEvents_unlock(void) {
     int err;
-    if((err = pthread_mutex_unlock(&mieqEnqueue_mutex))) {
-        ErrorF("%s:%s:%d: Failed to unlock mieqEnqueue_mutex: %d\n",
+    if((err = pthread_mutex_unlock(&darwinEvents_mutex))) {
+        ErrorF("%s:%s:%d: Failed to unlock darwinEvents_mutex: %d\n",
                __FILE__, __FUNCTION__, __LINE__, err);
         spewCallStack();
     }
@@ -413,13 +412,19 @@ void DarwinSendPointerEvents(int ev_type, int ev_button, int pointer_x, int poin
 		return;
 	} 
 
-    mieqEnqueue_lock(); {
+    darwinEvents_lock(); {
         num_events = GetPointerEvents(darwinEvents, dev, ev_type, ev_button, 
                                       POINTER_ABSOLUTE, 0, dev==darwinTablet?5:2, valuators);
-        for(i=0; i<num_events; i++) mieqEnqueue (dev,&darwinEvents[i]);
+        for(i=0; i<num_events; i++) {
+            darwinEvents[i].u.keyButtonPointer.rootX -= darwinMainScreenX +
+                dixScreenOrigins[miPointerCurrentScreen()->myNum].x;
+            darwinEvents[i].u.keyButtonPointer.rootY -= darwinMainScreenY +
+                dixScreenOrigins[miPointerCurrentScreen()->myNum].y;
+            mieqEnqueue (dev, &darwinEvents[i]);
+        }
         DarwinPokeEQ();
 
-    } mieqEnqueue_unlock();
+    } darwinEvents_unlock();
 }
 
 void DarwinSendKeyboardEvents(int ev_type, int keycode) {
@@ -443,11 +448,11 @@ void DarwinSendKeyboardEvents(int ev_type, int keycode) {
 		}
 	}
 
-    mieqEnqueue_lock(); {
+    darwinEvents_lock(); {
         num_events = GetKeyboardEvents(darwinEvents, darwinKeyboard, ev_type, keycode + MIN_KEYCODE);
         for(i=0; i<num_events; i++) mieqEnqueue(darwinKeyboard,&darwinEvents[i]);
         DarwinPokeEQ();
-    } mieqEnqueue_unlock();
+    } darwinEvents_unlock();
 }
 
 void DarwinSendProximityEvents(int ev_type, int pointer_x, int pointer_y) {
@@ -463,12 +468,12 @@ void DarwinSendProximityEvents(int ev_type, int pointer_x, int pointer_y) {
 		return;
 	}
 
-    mieqEnqueue_lock(); {
+    darwinEvents_lock(); {
         num_events = GetProximityEvents(darwinEvents, darwinTablet, ev_type,
                                         0, 5, valuators);
         for(i=0; i<num_events; i++) mieqEnqueue (darwinTablet,&darwinEvents[i]);
         DarwinPokeEQ();
-    } mieqEnqueue_unlock();
+    } darwinEvents_unlock();
 }
 
 
@@ -533,8 +538,8 @@ void DarwinSendDDXEvent(int type, int argc, ...) {
         va_end (args);
     }
 
-    mieqEnqueue_lock();
+    darwinEvents_lock();
     mieqEnqueue(darwinPointer, &xe);
     DarwinPokeEQ();
-    mieqEnqueue_unlock();
+    darwinEvents_unlock();
 }
diff --git a/hw/xquartz/xpr/xprScreen.c b/hw/xquartz/xpr/xprScreen.c
index 731222607..d8eb72a48 100644
--- a/hw/xquartz/xpr/xprScreen.c
+++ b/hw/xquartz/xpr/xprScreen.c
@@ -40,6 +40,7 @@
 #include "xprEvent.h"
 #include "pseudoramiX.h"
 #include "darwin.h"
+#include "darwinEvents.h"
 #include "rootless.h"
 #include "dri.h"
 #include "globals.h"