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annotate src/video/fbcon/riva_regs.h @ 3473:7bdc10624cba

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This is terrible, but the OpenGL standard says that lines are half open, which means that one endpoint is not covered so adjoining lines don't overlap. It also doesn't define which end is open, and indeed Mac OS X and Linux differ. Mac OS X seems to leave the second endpoint open, but Linux uses the right-most endpoint for x major lines and the bottom-most endpoint for y major lines.
author Sam Lantinga <slouken@libsdl.org>
date Sat, 21 Nov 2009 07:14:21 +0000
parents 99210400e8b9
children f7b03b6838cb
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2009 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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24 #ifndef _RIVA_REGS_H
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25 #define _RIVA_REGS_H
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26
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27 /* This information comes from the XFree86 NVidia hardware driver */
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28
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29 /* mapped_io register offsets */
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30 #define PGRAPH_OFFSET 0x00400000
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31 #define FIFO_OFFSET 0x00800000
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32 #define ROP_OFFSET FIFO_OFFSET+0x00000000
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33 #define CLIP_OFFSET FIFO_OFFSET+0x00002000
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34 #define PATT_OFFSET FIFO_OFFSET+0x00004000
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35 #define PIXMAP_OFFSET FIFO_OFFSET+0x00006000
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36 #define BLT_OFFSET FIFO_OFFSET+0x00008000
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37 #define BITMAP_OFFSET FIFO_OFFSET+0x0000A000
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38 #define LINE_OFFSET FIFO_OFFSET+0x0000C000
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39 #define TRI03_OFFSET FIFO_OFFSET+0x0000E000
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40 #define PCIO_OFFSET 0x00601000
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42 #endif /* _RIVA_REGS_H */
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43 /* vi: set ts=4 sw=4 expandtab: */