124 lines
4.3 KiB
C
124 lines
4.3 KiB
C
/* $Xorg: format.c,v 1.4 2001/02/09 02:04:04 xorgcvs Exp $ */
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/*
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* Copyright 1990, 1991 Network Computing Devices;
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* Portions Copyright 1987 by Digital Equipment Corporation
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the names of Network Computing Devices or Digital
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* not be used in advertising or publicity pertaining to distribution of the
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* software without specific, written prior permission. Network Computing
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* Devices and Digital make no representations about the suitability of
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* this software for any purpose. It is provided "as is" without express
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* or implied warranty.
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*
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* NETWORK COMPUTING DEVICES AND DIGITAL DISCLAIM ALL WARRANTIES WITH
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* REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS, IN NO EVENT SHALL NETWORK COMPUTING DEVICES OR DIGITAL BE
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* LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/*
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Copyright 1987, 1998 The Open Group
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Permission to use, copy, modify, distribute, and sell this software and its
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documentation for any purpose is hereby granted without fee, provided that
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the above copyright notice appear in all copies and that both that
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copyright notice and this permission notice appear in supporting
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documentation.
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The above copyright notice and this permission notice shall be included
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in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR
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OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of The Open Group shall
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not be used in advertising or otherwise to promote the sale, use or
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other dealings in this Software without prior written authorization
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from The Open Group.
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*/
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/* $XFree86: xc/lib/font/util/format.c,v 1.5 2001/12/14 19:56:57 dawes Exp $ */
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#include "FSproto.h"
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#include "font.h"
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#include "fontstruct.h"
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#include "fontutil.h"
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int
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CheckFSFormat(fsBitmapFormat format,
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fsBitmapFormatMask fmask,
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int *bit_order,
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int *byte_order,
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int *scan,
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int *glyph,
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int *image)
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{
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/* convert format to what the low levels want */
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if (fmask & BitmapFormatMaskBit) {
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*bit_order = format & BitmapFormatBitOrderMask;
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*bit_order = (*bit_order == BitmapFormatBitOrderMSB)
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? MSBFirst : LSBFirst;
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}
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if (fmask & BitmapFormatMaskByte) {
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*byte_order = format & BitmapFormatByteOrderMask;
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*byte_order = (*byte_order == BitmapFormatByteOrderMSB)
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? MSBFirst : LSBFirst;
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}
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if (fmask & BitmapFormatMaskScanLineUnit) {
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*scan = format & BitmapFormatScanlineUnitMask;
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/* convert byte paddings into byte counts */
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switch (*scan) {
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case BitmapFormatScanlineUnit8:
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*scan = 1;
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break;
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case BitmapFormatScanlineUnit16:
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*scan = 2;
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break;
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case BitmapFormatScanlineUnit32:
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*scan = 4;
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break;
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default:
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return BadFontFormat;
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}
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}
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if (fmask & BitmapFormatMaskScanLinePad) {
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*glyph = format & BitmapFormatScanlinePadMask;
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/* convert byte paddings into byte counts */
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switch (*glyph) {
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case BitmapFormatScanlinePad8:
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*glyph = 1;
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break;
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case BitmapFormatScanlinePad16:
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*glyph = 2;
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break;
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case BitmapFormatScanlinePad32:
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*glyph = 4;
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break;
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default:
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return BadFontFormat;
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}
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}
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if (fmask & BitmapFormatMaskImageRectangle) {
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*image = format & BitmapFormatImageRectMask;
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if (*image != BitmapFormatImageRectMin &&
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*image != BitmapFormatImageRectMaxWidth &&
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*image != BitmapFormatImageRectMax)
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return BadFontFormat;
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}
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return Successful;
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}
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