From 87e1ae59ec19eeeee70978c922c43e1b219699d5 Mon Sep 17 00:00:00 2001
From: Keith Packard <keithp@keithp.com>
Date: Sat, 7 Aug 2004 00:40:40 +0000
Subject: Update to version 0.9 of Xrender (includes XRenderAddTraps)

---
 include/X11/extensions/Xrender.h | 17 ++++++++++
 src/AddTrap.c                    | 67 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 84 insertions(+)
 create mode 100644 src/AddTrap.c

diff --git a/include/X11/extensions/Xrender.h b/include/X11/extensions/Xrender.h
index 6af21b1..d2cf6e5 100644
--- a/include/X11/extensions/Xrender.h
+++ b/include/X11/extensions/Xrender.h
@@ -169,6 +169,14 @@ typedef struct _XAnimCursor {
     unsigned long   delay;
 } XAnimCursor;
 
+typedef struct _XSpanFix {
+    XFixed	    left, right, y;
+} XSpanFix;
+
+typedef struct _XTrap {
+    XSpanFix	    top, bottom;
+} XTrap;
+
 _XFUNCPROTOBEGIN
 
 Bool XRenderQueryExtension (Display *dpy, int *event_basep, int *error_basep);
@@ -464,6 +472,15 @@ XRenderCreateAnimCursor (Display	*dpy,
 			 int		ncursor,
 			 XAnimCursor	*cursors);
 
+
+void
+XRenderAddTraps (Display	    *dpy,
+		 Picture	    picture,
+		 int		    xOff,
+		 int		    yOff,
+		 _Xconst XTrap	    *traps,
+		 int		    ntrap);
+
 _XFUNCPROTOEND
 
 #endif /* _XRENDER_H_ */
diff --git a/src/AddTrap.c b/src/AddTrap.c
new file mode 100644
index 0000000..0449257
--- /dev/null
+++ b/src/AddTrap.c
@@ -0,0 +1,67 @@
+/*
+ * $Id$
+ *
+ * Copyright © 2004 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of Keith Packard not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission.  Keith Packard makes no
+ * representations about the suitability of this software for any purpose.  It
+ * is provided "as is" without express or implied warranty.
+ *
+ * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "Xrenderint.h"
+
+#define NLOCAL	256
+
+void
+XRenderAddTraps (Display	    *dpy,
+		 Picture	    picture,
+		 int		    xOff,
+		 int		    yOff,
+		 _Xconst XTrap	    *traps,
+		 int		    ntrap)
+{
+    XRenderExtDisplayInfo   *info = XRenderFindDisplay (dpy);
+    xRenderAddTrapsReq	    *req;
+    int			    n;
+    long    		    len;
+    unsigned long	    max_req = dpy->bigreq_size ? dpy->bigreq_size : dpy->max_request_size;
+
+    RenderSimpleCheckExtension (dpy, info);
+    LockDisplay(dpy);
+    while (ntrap)
+    {
+	GetReq(RenderAddTraps, req);
+	req->reqType = info->codes->major_opcode;
+	req->renderReqType = X_RenderAddTraps;
+	req->picture = picture;
+	req->xOff = xOff;
+	req->yOff = yOff;
+	n = ntrap;
+	len = ((long) n) * (SIZEOF (xTrap) >> 2);
+	if (len > (max_req - req->length)) {
+	    n = (max_req - req->length) / (SIZEOF (xTrap) >> 2);
+	    len = ((long)n) * (SIZEOF (xTrap) >> 2);
+	}
+	SetReqLen (req, len, len);
+	len <<= 2;
+	DataInt32 (dpy, (int *) traps, len);
+	ntrap -= n;
+	traps += n;
+    }
+    UnlockDisplay(dpy);
+    SyncHandle();
+}
-- 
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