From f4092abdf94af6a99aff944d6264bc1284e8bdd4 Mon Sep 17 00:00:00 2001
From: Reinhard Tartler <siretart@tauware.de>
Date: Mon, 10 Oct 2011 17:43:39 +0200
Subject: Imported nx-X11-3.1.0-1.tar.gz

Summary: Imported nx-X11-3.1.0-1.tar.gz
Keywords:

Imported nx-X11-3.1.0-1.tar.gz
into Git repository
---
 nx-X11/lib/Xft1/xftextent.c | 190 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 190 insertions(+)
 create mode 100644 nx-X11/lib/Xft1/xftextent.c

(limited to 'nx-X11/lib/Xft1/xftextent.c')

diff --git a/nx-X11/lib/Xft1/xftextent.c b/nx-X11/lib/Xft1/xftextent.c
new file mode 100644
index 000000000..8a6cf620a
--- /dev/null
+++ b/nx-X11/lib/Xft1/xftextent.c
@@ -0,0 +1,190 @@
+/*
+ * $XFree86: xc/lib/Xft/xftextent.c,v 1.6 2001/04/01 14:00:01 tsi Exp $
+ *
+ * Copyright © 2000 Keith Packard, member of The XFree86 Project, Inc.
+ *
+ * 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 <stdlib.h>
+#include <string.h>
+#include "xftint.h"
+
+void
+XftTextExtents8 (Display	*dpy,
+		 XftFont	*font,
+		 XftChar8	*string, 
+		 int		len,
+		 XGlyphInfo	*extents)
+{
+    if (font->core)
+    {
+	XftCoreExtents8 (dpy, font->u.core.font, string, len, extents);
+    }
+#ifdef FREETYPE2
+    else
+    {
+	XftRenderExtents8 (dpy, font->u.ft.font, string, len, extents);
+    }
+#endif
+}
+
+void
+XftTextExtents16 (Display	    *dpy,
+		  XftFont	    *font,
+		  XftChar16	    *string, 
+		  int		    len,
+		  XGlyphInfo	    *extents)
+{
+    if (font->core)
+    {
+	XftCoreExtents16 (dpy, font->u.core.font, string, len, extents);
+    }
+#ifdef FREETYPE2
+    else
+    {
+	XftRenderExtents16 (dpy, font->u.ft.font, string, len, extents);
+    }
+#endif
+}
+
+void
+XftTextExtents32 (Display	*dpy,
+		  XftFont	*font,
+		  XftChar32	*string, 
+		  int		len,
+		  XGlyphInfo	*extents)
+{
+    if (font->core)
+    {
+	XftCoreExtents32 (dpy, font->u.core.font, string, len, extents);
+    }
+#ifdef FREETYPE2
+    else
+    {
+	XftRenderExtents32 (dpy, font->u.ft.font, string, len, extents);
+    }
+#endif
+}
+
+void
+XftTextExtentsUtf8 (Display	*dpy,
+		    XftFont	*font,
+		    XftChar8	*string, 
+		    int		len,
+		    XGlyphInfo	*extents)
+{
+    XftChar8	*src;
+    XftChar32	c;
+    XftChar32	lbuf[4096];
+    XftChar32	*dst;
+    XftChar8	*dst8;
+    XftChar16	*dst16;
+    XftChar32	*dst32;
+    int		rlen, clen;
+    int		width = 1;
+    int		n;
+
+    /* compute needed width */
+    src = string;
+    rlen = len;
+    n = 0;
+    while (rlen)
+    {
+	clen = XftUtf8ToUcs4 (src, &c, rlen);
+	if (clen <= 0)	/* malformed UTF8 string */
+	{
+	    memset (extents, 0, sizeof (XGlyphInfo));
+	    return;
+	}
+	if (c >= 0x10000)
+	    width = 4;
+	else if (c >= 0x100)
+	{
+	    if (width == 1)
+		width = 2;
+	}
+	src += clen;
+	rlen -= clen;
+	n++;
+    }
+    dst = lbuf;
+    if (n * width > sizeof (lbuf))
+    {
+	dst = (XftChar32 *) malloc (n * width);
+	if (!dst)
+	{
+	    memset (extents, 0, sizeof (XGlyphInfo));
+	    return;
+	}
+    }
+    
+    switch (width) {
+    case 4:
+	src = string;
+	rlen = len;
+	dst32 = dst;
+	while (rlen)
+	{
+	    clen = XftUtf8ToUcs4 (src, &c, rlen);
+	    if (clen <= 0)	/* malformed UTF8 string */
+		return;
+	    *dst32++ = c;
+	    src += clen;
+	    rlen -= clen;
+	}
+	dst32 = dst;
+	XftTextExtents32 (dpy, font, dst32, n, extents);
+	break;
+    case 2:
+	src = string;
+	rlen = len;
+	dst16 = (XftChar16 *) dst;
+	while (rlen)
+	{
+	    clen = XftUtf8ToUcs4 (src, &c, rlen);
+	    if (clen <= 0)	/* malformed UTF8 string */
+		return;
+	    *dst16++ = c;
+	    src += clen;
+	    rlen -= clen;
+	}
+	dst16 = (XftChar16 *) dst;
+	XftTextExtents16 (dpy, font, dst16, n, extents);
+	break;
+    case 1:
+	src = string;
+	rlen = len;
+	dst8 = (XftChar8 *) dst;
+	while (rlen)
+	{
+	    clen = XftUtf8ToUcs4 (src, &c, rlen);
+	    if (clen <= 0)	/* malformed UTF8 string */
+		return;
+	    *dst8++ = c;
+	    src += clen;
+	    rlen -= clen;
+	}
+	dst8 = (XftChar8 *) dst;
+	XftTextExtents8 (dpy, font, dst8, n, extents);
+	break;
+    }
+    if (dst != lbuf)
+	free (dst);
+}
-- 
cgit v1.2.3