Home | History | Annotate | Line # | Download | only in dev
grfabs_tt.h revision 1.1 
      1 /*	$NetBSD: grfabs_tt.h,v 1.1 1996/09/16 06:50:34 leo Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1996 Leo Weppelman.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *      This product includes software developed by Leo Weppelman
     18  * 4. The name of the author may not be used to endorse or promote products
     19  *    derived from this software without specific prior written permission
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     31  */
     32 
     33 #ifndef _GRFABS_TT_H
     34 #define _GRFABS_TT_H
     35 
     36 /*
     37  * Colormap related macro's
     38  */
     39 #define CM_L2TT(v) \
     40     (((0x000f0000 & (v)) >> 8) | ((0x00000f00 & (v)) >> 4) |\
     41       (0x0000000f & (v)))
     42 #define CM_TT2L(v) \
     43     ((((0x00000f00 & (v)) * 0xff / 0xf) << 8) |\
     44      (((0x000000f0 & (v)) * 0xff / 0xf) << 4) |\
     45        (0x0000000f & (v)) * 0xff / 0xf)
     46 
     47 void tt_probe_video __P((MODES *));
     48 #endif /*  _GRFABS_TT_H */
     49