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libx11: Backport _XGetRequest API

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This API is relatively new and will be in next release of libX11
this is needed for OE qemu-native which links to libx11-native
but uses libGL from build system and herein lies the problem
if you have bleeding edge distro e.g. ubuntu 12.04(development)
libGL.so expects this API to be present. Backported to 1.4.4
thusly

(From OE-Core rev: e08604800fe1cb8f240f53c147ceb4ee08a29b91)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Khem Raj
2012-02-04 15:54:09 -08:00
committed by Richard Purdie
parent a4021674ed
commit a50eeb884a
2 changed files with 140 additions and 0 deletions
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137
meta/recipes-graphics/xorg-lib/libx11-1.4.4/0001-Add-_XGetRequest-as-substitute-for-GetReq-GetReqExtr.patch Normal file
View File

@@ -0,0 +1,137 @@
From 4a060f993bf676cf21ad9784e010f54134da7b40 Mon Sep 17 00:00:00 2001
From: Peter Hutterer <peter.hutterer@who-t.net>
Date: Mon, 17 Oct 2011 09:45:15 +1000
Subject: [PATCH] Add _XGetRequest as substitute for GetReq/GetReqExtra
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
---
include/X11/Xlibint.h | 49 ++++++++++++++++---------------------------------
src/XlibInt.c | 31 +++++++++++++++++++++++++++++++
2 files changed, 47 insertions(+), 33 deletions(-)
Upstream-Status: Backport
diff --git a/include/X11/Xlibint.h b/include/X11/Xlibint.h
index 2ce356d..43d1f2a 100644
--- a/include/X11/Xlibint.h
+++ b/include/X11/Xlibint.h
@@ -420,6 +420,18 @@ extern LockInfoPtr _Xglobal_lock;
#define WORD64ALIGN
#endif /* WORD64 */
+/**
+ * Return a len-sized request buffer for the request type. This function may
+ * flush the output queue.
+ *
+ * @param dpy The display connection
+ * @param type The request type
+ * @param len Length of the request in bytes
+ *
+ * @returns A pointer to the request buffer with a few default values
+ * initialized.
+ */
+extern void *_XGetRequest(Display *dpy, CARD8 type, size_t len);
/*
* GetReq - Get the next available X request packet in the buffer and
@@ -432,25 +444,10 @@ extern LockInfoPtr _Xglobal_lock;
#if !defined(UNIXCPP) || defined(ANSICPP)
#define GetReq(name, req) \
- WORD64ALIGN\
- if ((dpy->bufptr + SIZEOF(x##name##Req)) > dpy->bufmax)\
- _XFlush(dpy);\
- req = (x##name##Req *)(dpy->last_req = dpy->bufptr);\
- req->reqType = X_##name;\
- req->length = (SIZEOF(x##name##Req))>>2;\
- dpy->bufptr += SIZEOF(x##name##Req);\
- dpy->request++
-
+ req = (x##name##Req *) _XGetRequest(dpy, X_##name, SIZEOF(x##name##Req))
#else /* non-ANSI C uses empty comment instead of "##" for token concatenation */
#define GetReq(name, req) \
- WORD64ALIGN\
- if ((dpy->bufptr + SIZEOF(x/**/name/**/Req)) > dpy->bufmax)\
- _XFlush(dpy);\
- req = (x/**/name/**/Req *)(dpy->last_req = dpy->bufptr);\
- req->reqType = X_/**/name;\
- req->length = (SIZEOF(x/**/name/**/Req))>>2;\
- dpy->bufptr += SIZEOF(x/**/name/**/Req);\
- dpy->request++
+ req = (x/**/name/**/Req *) _XGetRequest(dpy, X_/**/name, SIZEOF(x/**/name/**/Req))
#endif
/* GetReqExtra is the same as GetReq, but allocates "n" additional
@@ -458,24 +455,10 @@ extern LockInfoPtr _Xglobal_lock;
#if !defined(UNIXCPP) || defined(ANSICPP)
#define GetReqExtra(name, n, req) \
- WORD64ALIGN\
- if ((dpy->bufptr + SIZEOF(x##name##Req) + n) > dpy->bufmax)\
- _XFlush(dpy);\
- req = (x##name##Req *)(dpy->last_req = dpy->bufptr);\
- req->reqType = X_##name;\
- req->length = (SIZEOF(x##name##Req) + n)>>2;\
- dpy->bufptr += SIZEOF(x##name##Req) + n;\
- dpy->request++
+ req = (x##name##Req *) _XGetRequest(dpy, X_##name, SIZEOF(x##name##Req) + n)
#else
#define GetReqExtra(name, n, req) \
- WORD64ALIGN\
- if ((dpy->bufptr + SIZEOF(x/**/name/**/Req) + n) > dpy->bufmax)\
- _XFlush(dpy);\
- req = (x/**/name/**/Req *)(dpy->last_req = dpy->bufptr);\
- req->reqType = X_/**/name;\
- req->length = (SIZEOF(x/**/name/**/Req) + n)>>2;\
- dpy->bufptr += SIZEOF(x/**/name/**/Req) + n;\
- dpy->request++
+ req = (x/**/name/**/Req *) _XGetRequest(dpy, X_/**/name, SIZEOF(x/**/name/**/Req) + n)
#endif
diff --git a/src/XlibInt.c b/src/XlibInt.c
index 3db151e..a8f5d08 100644
--- a/src/XlibInt.c
+++ b/src/XlibInt.c
@@ -1956,6 +1956,37 @@ Screen *_XScreenOfWindow(Display *dpy, Window w)
}
+/*
+ * 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)
/*
--
1.7.8.3

3
meta/recipes-graphics/xorg-lib/libx11_1.4.4.bb
View File

@@ -1,6 +1,8 @@
require libx11.inc
inherit gettext
PR = "r1"
BBCLASSEXTEND = "native nativesdk"
EXTRA_OECONF += "--with-keysymdefdir=${STAGING_INCDIR}/X11"
@@ -12,6 +14,7 @@ DEPENDS += "util-macros xtrans libxdmcp libxau \
SRC_URI += " file://keysymdef_include.patch \
file://x11_disable_makekeys.patch \
file://0001-Add-_XGetRequest-as-substitute-for-GetReq-GetReqExtr.patch \
"
SRC_URI[md5sum] = "ed7c382cbf8c13425b6a66bcac0ca5d9"