From 36d0fac779fcdece1d990c4f4e4a8590f319f2c7 Mon Sep 17 00:00:00 2001
From: Ulrich Sibiller <uli42@gmx.de>
Date: Wed, 29 Jun 2016 21:25:24 +0200
Subject: Backport of _XGetRequest()

To enable linking of a current libXrender libNX_X11 needs that symbol.

This is a (manual) backport of the following upstream libX11 commit
available at
https://cgit.freedesktop.org/xorg/lib/libX11/commit/src/XlibInt.c?id=4a060f993bf676cf21ad9784e010f54134da7b40:

     Commit: 4a060f993bf676cf21ad9784e010f54134da7b40
     Author: Peter Hutterer <peter.hutterer@who-t.net>
     Date: Mon, 17 Oct 2011 09:45:15 +1000
     Subject: Add _XGetRequest as substitute for GetReq/GetReqExtra
---
 nx-X11/lib/X11/XlibInt.c | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

(limited to 'nx-X11/lib/X11/XlibInt.c')

diff --git a/nx-X11/lib/X11/XlibInt.c b/nx-X11/lib/X11/XlibInt.c
index 49535fe18..64028d723 100644
--- a/nx-X11/lib/X11/XlibInt.c
+++ b/nx-X11/lib/X11/XlibInt.c
@@ -3732,6 +3732,36 @@ Screen *_XScreenOfWindow (dpy, w)
     return NULL;
 }
 
+/*
+ * WARNING: This implementation's pre-conditions and post-conditions
+ * must remain compatible with the old macro-based implementations of
+ * GetReq, GetReqExtra, GetResReq, and GetEmptyReq. The portions of the
+ * Display structure affected by those macros are part of libX11's
+ * ABI.
+ */
+void *_XGetRequest(Display *dpy, CARD8 type, size_t len)
+{
+    xReq *req;
+
+    WORD64ALIGN
+
+    if (dpy->bufptr + len > dpy->bufmax)
+       _XFlush(dpy);
+
+    if (len % 4)
+       fprintf(stderr,
+               "Xlib: request %d length %zd not a multiple of 4.\n",
+               type, len);
+
+    dpy->last_req = dpy->bufptr;
+
+    req = (xReq*)dpy->bufptr;
+    req->reqType = type;
+    req->length = len / 4;
+    dpy->bufptr += len;
+    dpy->request++;
+    return req;
+}
 
 #if defined(WIN32)
 
-- 
cgit v1.2.3


From bd2650ca0b17c8a8fc2bc278a998e10893d8147c Mon Sep 17 00:00:00 2001
From: Ulrich Sibiller <uli42@gmx.de>
Date: Wed, 29 Jun 2016 21:44:08 +0200
Subject: Port _XEatDataWords

This required for successful linking of libXrender against libNX_X11.

Port from libXfixes commit b031e3b60fa1af9e49449f23d4a84395868be3ab We
need this here to enable linking of current libXrender against
libNX_X11 instead of the system's libX11

The original implementation of this function (libX11 commit
9f5d83706543696fc944c1835a403938c06f2cc5) uses xcb stuff which we do
not have in libNX_X11. So we take a workaround from another lib. This
workaround had been added temporarily to a couple of X extension libs,
see
e.g. https://lists.x.org/archives/xorg-devel/2013-July/036763.html.
---
 nx-X11/lib/X11/XlibInt.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

(limited to 'nx-X11/lib/X11/XlibInt.c')

diff --git a/nx-X11/lib/X11/XlibInt.c b/nx-X11/lib/X11/XlibInt.c
index 64028d723..175f5b92f 100644
--- a/nx-X11/lib/X11/XlibInt.c
+++ b/nx-X11/lib/X11/XlibInt.c
@@ -2751,6 +2751,30 @@ void _XEatData(
 #undef SCRATCHSIZE
 }
 
+/*
+   Port from libXfixes commit
+   b031e3b60fa1af9e49449f23d4a84395868be3ab We need this here to
+   enable linking of current libXrender against libNX_X11 instead of
+   the system's libX11
+
+   The original implementation of this function (libX11 commit
+   9f5d83706543696fc944c1835a403938c06f2cc5) uses xcb stuff which we
+   do not have in libNX_X11. So we take a workaround from another
+   lib. This workaround had been implemented temporarily in a couple
+   of X libs, see e.g. https://lists.x.org/archives/xorg-devel/2013-July/036763.html.
+*/
+#include <X11/Xmd.h>  /* for LONG64 on 64-bit platforms */
+#include <limits.h>
+
+void _XEatDataWords(Display *dpy, unsigned long n)
+{
+#ifndef LONG64
+    if (n >= (ULONG_MAX >> 2))
+        _XIOError(dpy);
+#endif
+    _XEatData (dpy, n << 2);
+}
+
 
 /*
  * _XEnq - Place event packets on the display's queue.
-- 
cgit v1.2.3