From f9c8248b8326ad01f33f31531c6b2479baf80f02 Mon Sep 17 00:00:00 2001
From: Dave Airlie <airlied@redhat.com>
Date: Wed, 9 Jan 2013 14:23:57 +1000
Subject: [PATCH] randr: don't directly set changed bits in randr screen

Introduce a wrapper interface so we can fix things up for multi-gpu
situations later.

This just introduces the API for now.

Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 randr/randr.c    | 8 ++++++++
 randr/randrstr.h | 4 ++++
 randr/rrcrtc.c   | 2 +-
 randr/rrinfo.c   | 2 +-
 randr/rroutput.c | 2 +-
 randr/rrscreen.c | 2 +-
 6 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/randr/randr.c b/randr/randr.c
index f0decfc..11f88b2 100644
--- a/randr/randr.c
+++ b/randr/randr.c
@@ -464,6 +464,14 @@ TellChanged(WindowPtr pWin, pointer value)
     return WT_WALKCHILDREN;
 }
 
+void
+RRSetChanged(ScreenPtr pScreen)
+{
+    rrScrPriv(pScreen);
+
+    pScrPriv->changed = TRUE;
+}
+
 /*
  * Something changed; send events and adjust pointer position
  */
diff --git a/randr/randrstr.h b/randr/randrstr.h
index 2517479..2babfed 100644
--- a/randr/randrstr.h
+++ b/randr/randrstr.h
@@ -486,6 +486,10 @@ extern _X_EXPORT void
  RRDeliverScreenEvent(ClientPtr client, WindowPtr pWin, ScreenPtr pScreen);
 
 /* randr.c */
+/* set a screen change on the primary screen */
+extern _X_EXPORT void
+RRSetChanged(ScreenPtr pScreen);
+
 /*
  * Send all pending events
  */
diff --git a/randr/rrcrtc.c b/randr/rrcrtc.c
index 721b05a..2f76b62 100644
--- a/randr/rrcrtc.c
+++ b/randr/rrcrtc.c
@@ -39,7 +39,7 @@ RRCrtcChanged(RRCrtcPtr crtc, Bool layoutChanged)
     if (pScreen) {
         rrScrPriv(pScreen);
 
-        pScrPriv->changed = TRUE;
+        RRSetChanged(pScreen);
         /*
          * Send ConfigureNotify on any layout change
          */
diff --git a/randr/rrinfo.c b/randr/rrinfo.c
index 1408d6f..fc57bd4 100644
--- a/randr/rrinfo.c
+++ b/randr/rrinfo.c
@@ -225,7 +225,7 @@ RRScreenSetSizeRange(ScreenPtr pScreen,
     pScrPriv->minHeight = minHeight;
     pScrPriv->maxWidth = maxWidth;
     pScrPriv->maxHeight = maxHeight;
-    pScrPriv->changed = TRUE;
+    RRSetChanged(pScreen);
     pScrPriv->configChanged = TRUE;
 }
 
diff --git a/randr/rroutput.c b/randr/rroutput.c
index 88781ba..922d61f 100644
--- a/randr/rroutput.c
+++ b/randr/rroutput.c
@@ -36,7 +36,7 @@ RROutputChanged(RROutputPtr output, Bool configChanged)
     output->changed = TRUE;
     if (pScreen) {
         rrScrPriv(pScreen);
-        pScrPriv->changed = TRUE;
+        RRSetChanged(pScreen);
         if (configChanged)
             pScrPriv->configChanged = TRUE;
     }
diff --git a/randr/rrscreen.c b/randr/rrscreen.c
index 39340cc..36179ae 100644
--- a/randr/rrscreen.c
+++ b/randr/rrscreen.c
@@ -143,7 +143,7 @@ RRScreenSizeNotify(ScreenPtr pScreen)
     pScrPriv->height = pScreen->height;
     pScrPriv->mmWidth = pScreen->mmWidth;
     pScrPriv->mmHeight = pScreen->mmHeight;
-    pScrPriv->changed = TRUE;
+    RRSetChanged(pScreen);
 /*    pScrPriv->sizeChanged = TRUE; */
 
     RRTellChanged(pScreen);
-- 
2.7.4