From 5c2560d47ff79afb96b1304d3995706403bfea35 Mon Sep 17 00:00:00 2001
From: Adam Jackson <ajax@nwnk.net>
Date: Mon, 22 May 2006 15:47:46 +0000
Subject: Bug #6924: Restore the ABI for DrawableRec and ColormapRec to the
 state     they were in prior to the fix for #6438. Based on a patch from Andy
     Ritger.

---
 ChangeLog            | 11 +++++++++++
 dix/colormap.c       |  9 ++++++++-
 dix/pixmap.c         |  8 ++++++++
 dix/window.c         |  6 +++++-
 include/colormapst.h | 17 +++++++++++++++--
 include/pixmapstr.h  | 11 +++++++++++
 6 files changed, 58 insertions(+), 4 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index d9b0f83d3..e0474b94e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,14 @@
+2006-05-22  Adam Jackson  <ajax@freedesktop.org>
+
+	* dix/colormap.c:
+	* dix/pixmap.c:
+	* dix/window.c:
+	* include/colormapst.h:
+	* include/pixmapstr.h:
+	Bug #6924: Restore the ABI for DrawableRec and ColormapRec to 
+	the state they were in prior to the fix for #6438. Based on a 
+	patch from Andy Ritger.
+
 2006-05-19  Adam Jackson  <ajax@freedesktop.org>
 
 	* include/os.h:
diff --git a/dix/colormap.c b/dix/colormap.c
index 900949c81..a448010ea 100644
--- a/dix/colormap.c
+++ b/dix/colormap.c
@@ -1,4 +1,4 @@
-/* $XdotOrg: xserver/xorg/dix/colormap.c,v 1.11 2005/09/05 07:40:50 daniels Exp $ */
+/* $XdotOrg: xserver/xorg/dix/colormap.c,v 1.12 2006/02/15 20:44:12 ajax Exp $ */
 /* $XFree86: xc/programs/Xserver/dix/colormap.c,v 3.11 2003/11/03 05:10:59 tsi Exp $ */
 /***********************************************************
 
@@ -280,6 +280,13 @@ CreateColormap (Colormap mid, ScreenPtr pScreen, VisualPtr pVisual,
     pmap = (ColormapPtr) xalloc(sizebytes);
     if (!pmap)
 	return (BadAlloc);
+#if defined(_XSERVER64)
+    pmap->pad0 = 0;
+    pmap->pad1 = 0;
+#if (X_BYTE_ORDER == X_LITTLE_ENDIAN)
+    pmap->pad2 = 0;
+#endif
+#endif
     pmap->red = (EntryPtr)((char *)pmap + sizeof(ColormapRec));    
     sizebytes = size * sizeof(Entry);
     pmap->clientPixelsRed = (Pixel **)((char *)pmap->red + sizebytes);
diff --git a/dix/pixmap.c b/dix/pixmap.c
index 527b0f0b2..1c3d49fc5 100644
--- a/dix/pixmap.c
+++ b/dix/pixmap.c
@@ -141,5 +141,13 @@ AllocatePixmap(ScreenPtr pScreen, int pixDataSize)
 #else
     pPixmap = (PixmapPtr)xalloc(sizeof(PixmapRec) + pixDataSize);
 #endif
+
+#ifdef _XSERVER64
+    if (pPixmap) {
+	pPixmap->drawable.pad0 = 0;
+	pPixmap->drawable.pad1 = 0;
+    }
+#endif
+
     return pPixmap;
 }
diff --git a/dix/window.c b/dix/window.c
index f00f63714..9fba5f832 100644
--- a/dix/window.c
+++ b/dix/window.c
@@ -1,4 +1,4 @@
-/* $XdotOrg: xserver/xorg/dix/window.c,v 1.16 2006/03/29 17:51:54 deronj Exp $ */
+/* $XdotOrg: xserver/xorg/dix/window.c,v 1.17 2006/03/31 17:39:35 sandmann Exp $ */
 /* $Xorg: window.c,v 1.4 2001/02/09 02:04:41 xorgcvs Exp $ */
 /*
 
@@ -384,6 +384,10 @@ AllocateWindow(ScreenPtr pScreen)
 	    else
 		ppriv->ptr = (pointer)NULL;
 	}
+#if _XSERVER64
+	pWin->drawable.pad0 = 0;
+        pWin->drawable.pad1 = 0;
+#endif
     }
     return pWin;
 }
diff --git a/include/colormapst.h b/include/colormapst.h
index d2422ea85..fdfc8f397 100644
--- a/include/colormapst.h
+++ b/include/colormapst.h
@@ -49,6 +49,8 @@ SOFTWARE.
 #ifndef CMAPSTRUCT_H
 #define CMAPSTRUCT_H 1
 
+#include <X11/Xarch.h>
+
 #include "colormap.h"
 #include "screenint.h"
 
@@ -89,15 +91,26 @@ typedef struct _CMEntry
     Bool	fShared;
 } Entry;
 
-/* COLORMAPs can be used for either Direct or Pseudo color.  PseudoColor
+/*
+ * COLORMAPs can be used for either Direct or Pseudo color.  PseudoColor
  * only needs one cell table, we arbitrarily pick red.  We keep track
- * of that table with freeRed, numPixelsRed, and clientPixelsRed */
+ * of that table with freeRed, numPixelsRed, and clientPixelsRed
+ *
+ * The padN variables are unfortunate ABI BC. See fdo bug #6924.
+ */
 
 typedef struct _ColormapRec
 {
     VisualPtr	pVisual;
     short	class;		/* PseudoColor or DirectColor */
+#if defined(_XSERVER64)
+    short	pad0;
+    XID		pad1;
+#endif
     XID		mid;		/* client's name for colormap */
+#if defined(_XSERVER64) && (X_BYTE_ORDER == X_LITTLE_ENDIAN)
+    XID		pad2;
+#endif
     ScreenPtr	pScreen;	/* screen map is associated with */
     short	flags;		/* 1 = IsDefault
 				 * 2 = AllAllocated */
diff --git a/include/pixmapstr.h b/include/pixmapstr.h
index 272ce6869..291f2a2e9 100644
--- a/include/pixmapstr.h
+++ b/include/pixmapstr.h
@@ -49,16 +49,27 @@ SOFTWARE.
 
 #ifndef PIXMAPSTRUCT_H
 #define PIXMAPSTRUCT_H
+#include <X11/Xarch.h>
 #include "pixmap.h"
 #include "screenint.h"
 #include "regionstr.h"
 
+/*
+ * The padN members are unfortunate ABI BC.  See fdo bug #6924.
+ */
+
 typedef struct _Drawable {
     unsigned char	type;	/* DRAWABLE_<type> */
     unsigned char	class;	/* specific to type */
     unsigned char	depth;
     unsigned char	bitsPerPixel;
+#if defined(_XSERVER64)
+    XID			pad0;
+#endif
     XID			id;	/* resource id */
+#if defined(_XSERVER64)
+    XID			pad1;
+#endif
     short		x;	/* window: screen absolute, pixmap: 0 */
     short		y;	/* window: screen absolute, pixmap: 0 */
     unsigned short	width;
-- 
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