Import X server from vnc-3.3.7.

[rdpsrv] / Xserver / lib / font / util / format.c

diff --git a/Xserver/lib/font/util/format.c b/Xserver/lib/font/util/format.c
new file mode 100644 (file)
index 0000000..5456779
--- /dev/null
+++ b/Xserver/lib/font/util/format.c
@@ -0,0 +1,123 @@
+/* $XConsortium: format.c,v 1.5 94/04/17 20:17:34 dpw 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 (c) 1987  X Consortium
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+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 X CONSORTIUM 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 X Consortium 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 X Consortium.
+
+*/
+
+#include       "FSproto.h"
+#include       "font.h"
+
+int
+CheckFSFormat(format, fmask, bit_order, byte_order, scan, glyph, image)
+    fsBitmapFormat format;
+    fsBitmapFormatMask fmask;
+    int        *bit_order,
+               *byte_order,
+               *scan,
+               *glyph,
+               *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;
+}