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authorReinhard Tartler <siretart@tauware.de>2011-10-10 17:43:39 +0200
committerReinhard Tartler <siretart@tauware.de>2011-10-10 17:43:39 +0200
commitf4092abdf94af6a99aff944d6264bc1284e8bdd4 (patch)
tree2ac1c9cc16ceb93edb2c4382c088dac5aeafdf0f /nx-X11/lib/Xft1/xftcore.c
parenta840692edc9c6d19cd7c057f68e39c7d95eb767d (diff)
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Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1
Summary: Imported nx-X11-3.1.0-1.tar.gz Keywords: Imported nx-X11-3.1.0-1.tar.gz into Git repository
Diffstat (limited to 'nx-X11/lib/Xft1/xftcore.c')
-rw-r--r--nx-X11/lib/Xft1/xftcore.c247
1 files changed, 247 insertions, 0 deletions
diff --git a/nx-X11/lib/Xft1/xftcore.c b/nx-X11/lib/Xft1/xftcore.c
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index 000000000..331cbd7e3
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+++ b/nx-X11/lib/Xft1/xftcore.c
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+/*
+ * $XFree86: xc/lib/Xft/xftcore.c,v 1.5 2000/12/20 00:28:44 keithp 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 "xftint.h"
+
+XChar2b *
+XftCoreConvert16 (XftChar16 *string,
+ int len,
+ XChar2b xcloc[XFT_CORE_N16LOCAL])
+{
+ XChar2b *xc;
+ int i;
+
+ if (len < XFT_CORE_N16LOCAL)
+ xc = xcloc;
+ else
+ xc = (XChar2b *) malloc (len * sizeof (XChar2b));
+ for (i = 0; i < len; i++)
+ {
+ xc[i].byte1 = string[i] & 0xff;
+ xc[i].byte2 = (string[i] >> 8) & 0xff;
+ }
+ return xc;
+}
+
+XChar2b *
+XftCoreConvert32 (XftChar32 *string,
+ int len,
+ XChar2b xcloc[XFT_CORE_N16LOCAL])
+{
+ XChar2b *xc;
+ int i;
+
+ if (len < XFT_CORE_N16LOCAL)
+ xc = xcloc;
+ else
+ xc = (XChar2b *) malloc (len * sizeof (XChar2b));
+ for (i = 0; i < len; i++)
+ {
+ xc[i].byte1 = string[i] & 0xff;
+ xc[i].byte2 = (string[i] >> 8) & 0xff;
+ }
+ return xc;
+}
+
+XChar2b *
+XftCoreConvertUtf8 (XftChar8 *string,
+ int len,
+ XChar2b xcloc[XFT_CORE_N16LOCAL],
+ int *nchar)
+{
+ XChar2b *xc;
+ XftChar32 c;
+ int i;
+ int n, width;
+ int clen;
+
+ if (!XftUtf8Len (string, len, &n, &width))
+ return 0;
+
+ if (n < XFT_CORE_N16LOCAL)
+ xc = xcloc;
+ else
+ xc = (XChar2b *) malloc (n * sizeof (XChar2b));
+ for (i = 0; i < n; i++)
+ {
+ clen = XftUtf8ToUcs4 (string, &c, len);
+ xc[i].byte1 = c & 0xff;
+ xc[i].byte2 = (c >> 8) & 0xff;
+ string += clen;
+ len -= clen;
+ }
+ *nchar = n;
+ return xc;
+}
+
+void
+XftCoreExtents8 (Display *dpy,
+ XFontStruct *fs,
+ XftChar8 *string,
+ int len,
+ XGlyphInfo *extents)
+{
+ int direction;
+ int ascent, descent;
+ XCharStruct overall;
+
+ XTextExtents (fs, (char *) string, len, &direction,
+ &ascent, &descent, &overall);
+ if (overall.lbearing < overall.rbearing)
+ {
+ extents->x = overall.lbearing;
+ extents->width = overall.rbearing - overall.lbearing;
+ }
+ else
+ {
+ extents->x = overall.rbearing;
+ extents->width = overall.lbearing - overall.rbearing;
+ }
+ extents->y = -overall.ascent;
+ extents->height = overall.ascent + overall.descent;
+ extents->xOff = overall.width;
+ extents->yOff = 0;
+}
+
+void
+XftCoreExtents16 (Display *dpy,
+ XFontStruct *fs,
+ XftChar16 *string,
+ int len,
+ XGlyphInfo *extents)
+{
+ int direction;
+ int ascent, descent;
+ XCharStruct overall;
+ XChar2b *xc, xcloc[XFT_CORE_N16LOCAL];
+
+ xc = XftCoreConvert16 (string, len, xcloc);
+ XTextExtents16 (fs, xc, len, &direction,
+ &ascent, &descent, &overall);
+ if (xc != xcloc)
+ free (xc);
+ if (overall.lbearing < overall.rbearing)
+ {
+ extents->x = overall.lbearing;
+ extents->width = overall.rbearing - overall.lbearing;
+ }
+ else
+ {
+ extents->x = overall.rbearing;
+ extents->width = overall.lbearing - overall.rbearing;
+ }
+ extents->y = -overall.ascent;
+ extents->height = overall.ascent + overall.descent;
+ extents->xOff = overall.width;
+ extents->yOff = 0;
+}
+
+void
+XftCoreExtents32 (Display *dpy,
+ XFontStruct *fs,
+ XftChar32 *string,
+ int len,
+ XGlyphInfo *extents)
+{
+ int direction;
+ int ascent, descent;
+ XCharStruct overall;
+ XChar2b *xc, xcloc[XFT_CORE_N16LOCAL];
+
+ xc = XftCoreConvert32 (string, len, xcloc);
+ XTextExtents16 (fs, xc, len, &direction,
+ &ascent, &descent, &overall);
+ if (xc != xcloc)
+ free (xc);
+ if (overall.lbearing < overall.rbearing)
+ {
+ extents->x = overall.lbearing;
+ extents->width = overall.rbearing - overall.lbearing;
+ }
+ else
+ {
+ extents->x = overall.rbearing;
+ extents->width = overall.lbearing - overall.rbearing;
+ }
+ extents->y = -overall.ascent;
+ extents->height = overall.ascent + overall.descent;
+ extents->xOff = overall.width;
+ extents->yOff = 0;
+}
+
+void
+XftCoreExtentsUtf8 (Display *dpy,
+ XFontStruct *fs,
+ XftChar8 *string,
+ int len,
+ XGlyphInfo *extents)
+{
+ int direction;
+ int ascent, descent;
+ XCharStruct overall;
+ XChar2b *xc, xcloc[XFT_CORE_N16LOCAL];
+ int n;
+
+ xc = XftCoreConvertUtf8 (string, len, xcloc, &n);
+ XTextExtents16 (fs, xc, n, &direction,
+ &ascent, &descent, &overall);
+ if (xc != xcloc)
+ free (xc);
+ if (overall.lbearing < overall.rbearing)
+ {
+ extents->x = overall.lbearing;
+ extents->width = overall.rbearing - overall.lbearing;
+ }
+ else
+ {
+ extents->x = overall.rbearing;
+ extents->width = overall.lbearing - overall.rbearing;
+ }
+ extents->y = -overall.ascent;
+ extents->height = overall.ascent + overall.descent;
+ extents->xOff = overall.width;
+ extents->yOff = 0;
+}
+
+Bool
+XftCoreGlyphExists (Display *dpy,
+ XFontStruct *fs,
+ XftChar32 glyph)
+{
+ int direction;
+ int ascent, descent;
+ XCharStruct overall;
+ XChar2b xc;
+
+ XftCoreConvert32 (&glyph, 1, &xc);
+ XTextExtents16 (fs, &xc, 1, &direction,
+ &ascent, &descent, &overall);
+ return (overall.lbearing != 0 ||
+ overall.rbearing != 0 ||
+ overall.width != 0 ||
+ overall.ascent != 0 ||
+ overall.descent != 0);
+}
+