annotate src/video/fbcon/SDL_fbelo.h @ 630:550bccdf04bd

Added initial support for RISC OS (thanks Peter Naulls!)
author Sam Lantinga <slouken@libsdl.org>
date Thu, 29 May 2003 04:44:13 +0000
parents f6ffac90895c
children b8d311d90021
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 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 Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 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 Library 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 Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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18
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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
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23 #ifdef SAVE_RCSID
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24 static char rcsid =
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25 "@(#) $Id$";
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26 #endif
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27
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28 #ifndef SDL_fbelo_h
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29 #define SDL_fbelo_h
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30
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31 #include <stdlib.h>
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32
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33 #include "SDL_fbvideo.h"
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34
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35 /* ELO */
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36 #define ELO_PACKET_SIZE 10
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37 #define ELO_START_BYTE 'U'
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38
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39 /* eloConvertXY
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40 Convert the raw coordinates from the ELO controller
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41 to a screen position.
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42 */
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43 void eloConvertXY(_THIS, int *dx, int *dy);
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44
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45 /* eloInitController(int fd)
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46 Initialize the ELO serial touchscreen controller
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47 */
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48 int eloInitController(int fd);
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49
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50 /* eloParsePacket
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51 extract position and button state from a packet
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52 */
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53 int eloParsePacket(unsigned char* mousebuf, int* dx, int* dy, int* button_state);
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54
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55 /* eloReadPosition
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56 read a packet and get the cursor position
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57 */
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58
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59 int eloReadPosition(_THIS, int fd, int* x, int* y, int* button_state, int* realx, int* realy);
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60
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61 #endif /* SDL_fbelo_h */