sys/arch/atari/dev/grfabs_tt.h

   1 /*      $NetBSD: grfabs_tt.h,v 1.2 2009/03/14 14:45:56 dsl 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  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26  */
  27
  28 #ifndef _GRFABS_TT_H
  29 #define _GRFABS_TT_H
  30
  31 /*
  32  * Colormap related macro's
  33  */
  34 #define CM_L2TT(v) \
  35     (((0x000f0000 & (v)) >> 8) | ((0x00000f00 & (v)) >> 4) |\
  36       (0x0000000f & (v)))
  37 #define CM_TT2L(v) \
  38     ((((0x00000f00 & (v)) * 0xff / 0xf) << 8) |\
  39      (((0x000000f0 & (v)) * 0xff / 0xf) << 4) |\
  40        (0x0000000f & (v)) * 0xff / 0xf)
  41
  42 void tt_probe_video(MODES *);
  43 #endif /*  _GRFABS_TT_H */