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/*
(c) Copyright 2001-2009 The world wide DirectFB Open Source Community (directfb.org)
(c) Copyright 2000-2004 Convergence (integrated media) GmbH
All rights reserved.
Written by Denis Oliver Kropp <dok@directfb.org>,
Andreas Hundt <andi@fischlustig.de>,
Sven Neumann <neo@directfb.org>,
Ville Syrjälä <syrjala@sci.fi> and
Claudio Ciccani <klan@users.sf.net>.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
#ifndef __DUFFS_DEVICE_H__
#define __DUFFS_DEVICE_H__
#define DUFF_1() \
case 1:\
SET_PIXEL( D[0], S[0] );
#define DUFF_2() \
case 3:\
SET_PIXEL( D[2], S[2] );\
case 2:\
SET_PIXEL( D[1], S[1] );\
DUFF_1()
#define DUFF_3() \
case 7:\
SET_PIXEL( D[6], S[6] );\
case 6:\
SET_PIXEL( D[5], S[5] );\
case 5:\
SET_PIXEL( D[4], S[4] );\
case 4:\
SET_PIXEL( D[3], S[3] );\
DUFF_2()
#define DUFF_4() \
case 15:\
SET_PIXEL( D[14], S[14] );\
case 14:\
SET_PIXEL( D[13], S[13] );\
case 13:\
SET_PIXEL( D[12], S[12] );\
case 12:\
SET_PIXEL( D[11], S[11] );\
case 11:\
SET_PIXEL( D[10], S[10] );\
case 10:\
SET_PIXEL( D[9], S[9] );\
case 9:\
SET_PIXEL( D[8], S[8] );\
case 8:\
SET_PIXEL( D[7], S[7] );\
DUFF_3()
#define SET_PIXEL_DUFFS_DEVICE_N( D, S, w, n ) \
do {\
while (w) {\
register int l = w & ((1 << n) - 1);\
switch (l) {\
default:\
l = (1 << n);\
SET_PIXEL( D[(1 << n)-1], S[(1 << n)-1] );\
DUFF_##n()\
}\
D += l;\
S += l;\
w -= l;\
}\
} while(0)
#endif
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