diff options
Diffstat (limited to 'Source/DirectFB/src/gfx/generic/duffs_device.h')
-rwxr-xr-x | Source/DirectFB/src/gfx/generic/duffs_device.h | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/Source/DirectFB/src/gfx/generic/duffs_device.h b/Source/DirectFB/src/gfx/generic/duffs_device.h new file mode 100755 index 0000000..4e31089 --- /dev/null +++ b/Source/DirectFB/src/gfx/generic/duffs_device.h @@ -0,0 +1,89 @@ +/* + (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 |