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-rw-r--r--libXfont/src/util/format.c126
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diff --git a/libXfont/src/util/format.c b/libXfont/src/util/format.c
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+/* $Xorg: format.c,v 1.4 2001/02/09 02:04:04 xorgcvs Exp $ */
+/*
+ * Copyright 1990, 1991 Network Computing Devices;
+ * Portions Copyright 1987 by Digital Equipment Corporation
+ *
+ * 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 names of Network Computing Devices or Digital
+ * not be used in advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission. Network Computing
+ * Devices and Digital make no representations about the suitability of
+ * this software for any purpose. It is provided "as is" without express
+ * or implied warranty.
+ *
+ * NETWORK COMPUTING DEVICES AND DIGITAL DISCLAIM ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS, IN NO EVENT SHALL NETWORK COMPUTING DEVICES OR DIGITAL 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.
+ */
+
+/*
+
+Copyright 1987, 1998 The Open Group
+
+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.
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of The Open Group shall
+not be used in advertising or otherwise to promote the sale, use or
+other dealings in this Software without prior written authorization
+from The Open Group.
+
+*/
+/* $XFree86: xc/lib/font/util/format.c,v 1.4 2001/01/17 19:43:33 dawes Exp $ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include <X11/fonts/FSproto.h>
+#include <X11/fonts/font.h>
+#include <X11/fonts/fontstruct.h>
+#include <X11/fonts/fontutil.h>
+
+int
+CheckFSFormat(fsBitmapFormat format,
+ fsBitmapFormatMask fmask,
+ int *bit_order,
+ int *byte_order,
+ int *scan,
+ int *glyph,
+ int *image)
+{
+ /* convert format to what the low levels want */
+ if (fmask & BitmapFormatMaskBit) {
+ *bit_order = format & BitmapFormatBitOrderMask;
+ *bit_order = (*bit_order == BitmapFormatBitOrderMSB)
+ ? MSBFirst : LSBFirst;
+ }
+ if (fmask & BitmapFormatMaskByte) {
+ *byte_order = format & BitmapFormatByteOrderMask;
+ *byte_order = (*byte_order == BitmapFormatByteOrderMSB)
+ ? MSBFirst : LSBFirst;
+ }
+ if (fmask & BitmapFormatMaskScanLineUnit) {
+ *scan = format & BitmapFormatScanlineUnitMask;
+ /* convert byte paddings into byte counts */
+ switch (*scan) {
+ case BitmapFormatScanlineUnit8:
+ *scan = 1;
+ break;
+ case BitmapFormatScanlineUnit16:
+ *scan = 2;
+ break;
+ case BitmapFormatScanlineUnit32:
+ *scan = 4;
+ break;
+ default:
+ return BadFontFormat;
+ }
+ }
+ if (fmask & BitmapFormatMaskScanLinePad) {
+ *glyph = format & BitmapFormatScanlinePadMask;
+ /* convert byte paddings into byte counts */
+ switch (*glyph) {
+ case BitmapFormatScanlinePad8:
+ *glyph = 1;
+ break;
+ case BitmapFormatScanlinePad16:
+ *glyph = 2;
+ break;
+ case BitmapFormatScanlinePad32:
+ *glyph = 4;
+ break;
+ default:
+ return BadFontFormat;
+ }
+ }
+ if (fmask & BitmapFormatMaskImageRectangle) {
+ *image = format & BitmapFormatImageRectMask;
+
+ if (*image != BitmapFormatImageRectMin &&
+ *image != BitmapFormatImageRectMaxWidth &&
+ *image != BitmapFormatImageRectMax)
+ return BadFontFormat;
+ }
+ return Successful;
+}