2004-03-14 09:34:49 +01:00
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/* $XFree86: xc/programs/Xserver/ilbm/ilbmmisc.c,v 3.0 1996/08/18 01:53:59 dawes Exp $ */
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2003-11-14 17:48:57 +01:00
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/***********************************************************
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Copyright (c) 1987 X Consortium
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of the X Consortium shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from the X Consortium.
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Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
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All Rights Reserved
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Permission to use, copy, modify, and distribute this software and its
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documentation for any purpose and without fee is hereby granted,
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provided that the above copyright notice appear in all copies and that
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both that copyright notice and this permission notice appear in
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supporting documentation, and that the name of Digital not be
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used in advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
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DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
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ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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SOFTWARE.
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******************************************************************/
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/* $XConsortium: ilbmmisc.c,v 5.4 94/04/17 20:28:27 dpw Exp $ */
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/* Modified jun 95 by Geert Uytterhoeven (Geert.Uytterhoeven@cs.kuleuven.ac.be)
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to use interleaved bitplanes instead of normal bitplanes */
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#include "X.h"
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#include "misc.h"
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#include "cursor.h"
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#include "scrnintstr.h"
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#include "ilbm.h"
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/*ARGSUSED*/
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void
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ilbmQueryBestSize(class, pwidth, pheight, pScreen)
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int class;
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unsigned short *pwidth;
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unsigned short *pheight;
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ScreenPtr pScreen;
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{
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unsigned width, test;
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switch (class) {
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case CursorShape:
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if (*pwidth > pScreen->width)
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*pwidth = pScreen->width;
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if (*pheight > pScreen->height)
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*pheight = pScreen->height;
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break;
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case TileShape:
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case StippleShape:
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width = *pwidth;
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if (!width) break;
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/* Return the closes power of two not less than what they gave me */
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test = 0x80000000;
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/* Find the highest 1 bit in the width given */
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while (!(test & width))
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test >>= 1;
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/* If their number is greater than that, bump up to the next
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* power of two */
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if ((test - 1) & width)
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test <<= 1;
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*pwidth = test;
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/* We don't care what height they use */
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break;
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}
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}
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